Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Notable changes:

   - Heiko Schocher provided a driver for TI TMP103.
   - Kamil Debski provided a driver for pwm-controlled fans.
   - Neelesh Gupta provided a driver for power, fan rpm, voltage and
     temperature reporting on powerpc/powernv systems.
   - Scott Kanowitz provided a driver supporting Lattice's POWR1220
     power manager IC.
   - Richard Zhu provided a pmbus front-end driver for TPS40422.
   - Frans Klaver added support for TMP112 to the lm75 driver.
   - Johannes Pointner added support for EPCOS B57330V2103 to the
     ntc_thermistor driver.
   - Guenter Roeck added support for TMP441 and TMP442 to the tmp421
     driver.
   - Axel Lin converted several drivers to the new hwmon API (36 of
     them, if I counted correctly), and cleaned up many of the drivers
     along the way.

  There are also a number of patches fixing bugs discovered while
  testing Axel's changes"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (88 commits)
  hwmon: (g762) Use of_property_read_u32 at appropriate place
  hwmon: (sis5595) Prevent overflow problem when writing large limits
  hwmon: (gpio-fan) Prevent overflow problem when writing large limits
  hwmon: (ibmpowernv) Use of_property_read_u32 at appropriate place
  hwmon: (lm85) Convert to devm_hwmon_device_register_with_groups
  hwmon: (lm85) Avoid forward declaration
  hwmon: (lm78) Convert to devm_hwmon_device_register_with_groups
  hwmon: (max6697) Use of_property_read_bool at appropriate places
  hwmon: (pwm-fan) Make SENSORS_PWM_FAN depend on OF
  hwmon: (pwm-fan) Remove duplicate dev_set_drvdata call
  hwmon: (nct6775) Remove num_attr_groups from struct nct6775_data
  hwmon: (nct6775) Update module description and Kconfig for NCT6106D and NCT6791D
  hwmon: (adt7411) Convert to devm_hwmon_device_register_with_groups
  hwmon: (g762) Convert to hwmon_device_register_with_groups
  hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groups
  hwmon: (smsc47m1) Avoid forward declaration
  hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups
  hwmon: (smsc47m192) Avoid forward declaration
  hwmon: (max1668) Make max1668_addr_list array const
  hwmon: (max6639) Make normal_i2c array const
  ...

Documentation/devicetree/bindings/hwmon/ibmpowernv.txt

@@ -0,0 +1,23 @@
+IBM POWERNV platform sensors
+----------------------------
+
+Required node properties:
+- compatible: must be one of
+		"ibm,opal-sensor-cooling-fan"
+		"ibm,opal-sensor-amb-temp"
+		"ibm,opal-sensor-power-supply"
+		"ibm,opal-sensor-power"
+- sensor-id: an opaque id provided by the firmware to the kernel, identifies a
+	     given sensor and its attribute data
+
+Example sensors node:
+
+cooling-fan#8-data {
+	sensor-id = <0x7052107>;
+	compatible = "ibm,opal-sensor-cooling-fan";
+};
+
+amb-temp#1-thrs {
+	sensor-id = <0x5096000>;
+	compatible = "ibm,opal-sensor-amb-temp";
+};

Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt

@@ -3,6 +3,7 @@ NTC Thermistor hwmon sensors
 
 Requires node properties:
 - "compatible" value : one of
+	"epcos,b57330v2103"
 	"murata,ncp15wb473"
 	"murata,ncp18wb473"
 	"murata,ncp21wb473"

Documentation/devicetree/bindings/hwmon/pwm-fan.txt

@@ -0,0 +1,12 @@
+Bindings for a fan connected to the PWM lines
+
+Required properties:
+- compatible	: "pwm-fan"
+- pwms		: the PWM that is used to control the PWM fan
+
+Example:
+	pwm-fan {
+		compatible = "pwm-fan";
+		status = "okay";
+		pwms = <&pwm 0 10000 0>;
+	};

Documentation/devicetree/bindings/i2c/trivial-devices.txt

@@ -84,5 +84,6 @@ stm,m41t80		M41T80 - SERIAL ACCESS RTC WITH ALARMS
 taos,tsl2550		Ambient Light Sensor with SMBUS/Two Wire Serial Interface
 ti,tsc2003		I2C Touch-Screen Controller
 ti,tmp102		Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
+ti,tmp103		Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
 ti,tmp275		Digital Temperature Sensor
 winbond,wpct301		i2c trusted platform module (TPM)

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -42,6 +42,7 @@ dmo	Data Modul AG
 ebv	EBV Elektronik
 edt	Emerging Display Technologies
 emmicro	EM Microelectronic
+epcos	EPCOS AG
 epfl	Ecole Polytechnique Fédérale de Lausanne
 epson	Seiko Epson Corp.
 est	ESTeem Wireless Modems

Documentation/hwmon/ibmpowernv

@@ -0,0 +1,41 @@
+Kernel Driver IBMPOWERNV
+========================
+
+Supported systems:
+  * Any recent IBM P servers based on POWERNV platform
+
+Author: Neelesh Gupta
+
+Description
+-----------
+
+This driver implements reading the platform sensors data like temperature/fan/
+voltage/power for 'POWERNV' platform.
+
+The driver uses the platform device infrastructure. It probes the device tree
+for sensor devices during the __init phase and registers them with the 'hwmon'.
+'hwmon' populates the 'sysfs' tree having attribute files, each for a given
+sensor type and its attribute data.
+
+All the nodes in the DT appear under "/ibm,opal/sensors" and each valid node in
+the DT maps to an attribute file in 'sysfs'. The node exports unique 'sensor-id'
+which the driver uses to make an OPAL call to the firmware.
+
+Usage notes
+-----------
+The driver is built statically with the kernel by enabling the config
+CONFIG_SENSORS_IBMPOWERNV. It can also be built as module 'ibmpowernv'.
+
+Sysfs attributes
+----------------
+
+fanX_input		Measured RPM value.
+fanX_min		Threshold RPM for alert generation.
+fanX_fault		0: No fail condition
+			1: Failing fan
+tempX_input		Measured ambient temperature.
+tempX_max		Threshold ambient temperature for alert generation.
+inX_input		Measured power supply voltage
+inX_fault		0: No fail condition.
+			1: Failing power supply.
+power1_input		System power consumption (microWatt)

Documentation/hwmon/lm75

@@ -42,13 +42,14 @@ Supported chips:
     Addresses scanned: none
     Datasheet: Publicly available at the ST website
                http://www.st.com/internet/analog/product/121769.jsp
-  * Texas Instruments TMP100, TMP101, TMP105, TMP75, TMP175, TMP275
-    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp175', 'tmp75', 'tmp275'
+  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP175, TMP275
+    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp275'
     Addresses scanned: none
     Datasheet: Publicly available at the Texas Instruments website
                http://www.ti.com/product/tmp100
                http://www.ti.com/product/tmp101
                http://www.ti.com/product/tmp105
+               http://www.ti.com/product/tmp112
                http://www.ti.com/product/tmp75
                http://www.ti.com/product/tmp175
                http://www.ti.com/product/tmp275

Documentation/hwmon/ntc_thermistor

@@ -6,6 +6,11 @@ Supported thermistors from Murata:
   Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333'
   Datasheet: Publicly available at Murata
 
+Supported thermistors from EPCOS:
+* EPCOS NTC Thermistors B57330V2103
+  Prefixes: b57330v2103
+  Datasheet: Publicly available at EPCOS
+
 Other NTC thermistors can be supported simply by adding compensation
 tables; e.g., NCP15WL333 support is added by the table ncpXXwl333.
 

Documentation/hwmon/pmbus

@@ -23,12 +23,11 @@ Supported chips:
 	http://www.lineagepower.com/oem/pdf/PDT012A0X.pdf
 	http://www.lineagepower.com/oem/pdf/UDT020A0X.pdf
 	http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf
-  * Texas Instruments TPS40400, TPS40422
-    Prefixes: 'tps40400', 'tps40422'
+  * Texas Instruments TPS40400
+    Prefixes: 'tps40400'
     Addresses scanned: -
     Datasheets:
 	http://www.ti.com/lit/gpn/tps40400
-	http://www.ti.com/lit/gpn/tps40422
   * Generic PMBus devices
     Prefix: 'pmbus'
     Addresses scanned: -

Documentation/hwmon/powr1220

@@ -0,0 +1,45 @@
+Kernel driver powr1220
+==================
+
+Supported chips:
+  * Lattice POWR1220AT8
+    Prefix: 'powr1220'
+    Addresses scanned: none
+    Datasheet: Publicly available at the Lattice website
+               http://www.latticesemi.com/
+
+Author: Scott Kanowitz <scott.kanowitz@gmail.com>
+
+Description
+-----------
+
+This driver supports the Lattice POWR1220AT8 chip. The POWR1220
+includes voltage monitoring for 14 inputs as well as trim settings
+for output voltages and GPIOs. This driver implements the voltage
+monitoring portion of the chip.
+
+Voltages are sampled by a 12-bit ADC with a step size of 2 mV.
+An in-line attenuator allows measurements from 0 to 6 V. The
+attenuator is enabled or disabled depending on the setting of the
+input's max value. The driver will enable the attenuator for any
+value over the low measurement range maximum of 2 V.
+
+The input naming convention is as follows:
+
+driver name    pin name
+in0            VMON1
+in1            VMON2
+in2            VMON3
+in2            VMON4
+in4            VMON5
+in5            VMON6
+in6            VMON7
+in7            VMON8
+in8            VMON9
+in9            VMON10
+in10           VMON11
+in11           VMON12
+in12           VCCA
+in13           VCCINP
+
+The ADC readings are updated on request with a minimum period of 1s.

Documentation/hwmon/pwm-fan

@@ -0,0 +1,17 @@
+Kernel driver pwm-fan
+=====================
+
+This driver enables the use of a PWM module to drive a fan. It uses the
+generic PWM interface thus it is hardware independent. It can be used on
+many SoCs, as long as the SoC supplies a PWM line driver that exposes
+the generic PWM API.
+
+Author: Kamil Debski <k.debski@samsung.com>
+
+Description
+-----------
+
+The driver implements a simple interface for driving a fan connected to
+a PWM output. It uses the generic PWM interface, thus it can be used with
+a range of SoCs. The driver exposes the fan to the user space through
+the hwmon's sysfs interface.

Documentation/hwmon/tmp103

@@ -0,0 +1,28 @@
+Kernel driver tmp103
+====================
+
+Supported chips:
+  * Texas Instruments TMP103
+    Prefix: 'tmp103'
+    Addresses scanned: none
+    Product info and datasheet: http://www.ti.com/product/tmp103
+
+Author:
+	Heiko Schocher <hs@denx.de>
+
+Description
+-----------
+
+The TMP103 is a digital output temperature sensor in a four-ball
+wafer chip-scale package (WCSP). The TMP103 is capable of reading
+temperatures to a resolution of 1°C. The TMP103 is specified for
+operation over a temperature range of –40°C to +125°C.
+
+Resolution: 8 Bits
+Accuracy: ±1°C Typ (–10°C to +100°C)
+
+The driver provides the common sysfs-interface for temperatures (see
+Documentation/hwmon/sysfs-interface under Temperatures).
+
+Please refer how to instantiate this driver:
+Documentation/i2c/instantiating-devices

Documentation/hwmon/tmp421

@@ -8,12 +8,20 @@ Supported chips:
     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
   * Texas Instruments TMP422
     Prefix: 'tmp422'
-    Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
+    Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f
     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
   * Texas Instruments TMP423
     Prefix: 'tmp423'
-    Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
+    Addresses scanned: I2C 0x4c and 0x4d
     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
+  * Texas Instruments TMP441
+    Prefix: 'tmp441'
+    Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
+    Datasheet: http://www.ti.com/product/tmp441
+  * Texas Instruments TMP442
+    Prefix: 'tmp442'
+    Addresses scanned: I2C 0x4c and 0x4d
+    Datasheet: http://www.ti.com/product/tmp442
 
 Authors:
 	Andre Prendel <andre.prendel@gmx.de>
@@ -21,13 +29,13 @@ Authors:
 Description
 -----------
 
-This driver implements support for Texas Instruments TMP421, TMP422
-and TMP423 temperature sensor chips. These chips implement one local
-and up to one (TMP421), up to two (TMP422) or up to three (TMP423)
-remote sensors. Temperature is measured in degrees Celsius. The chips
-are wired over I2C/SMBus and specified over a temperature range of -40
-to +125 degrees Celsius. Resolution for both the local and remote
-channels is 0.0625 degree C.
+This driver implements support for Texas Instruments TMP421, TMP422,
+TMP423, TMP441, and TMP442 temperature sensor chips. These chips
+implement one local and up to one (TMP421, TMP441), up to two (TMP422,
+TMP442) or up to three (TMP423) remote sensors. Temperature is measured
+in degrees Celsius. The chips are wired over I2C/SMBus and specified
+over a temperature range of -40 to +125 degrees Celsius. Resolution
+for both the local and remote channels is 0.0625 degree C.
 
 The chips support only temperature measurement. The driver exports
 the temperature values via the following sysfs files:

Documentation/hwmon/tps40422

@@ -0,0 +1,64 @@
+Kernel driver tps40422
+======================
+
+Supported chips:
+  * TI TPS40422
+    Prefix: 'tps40422'
+    Addresses scanned: -
+    Datasheet: http://www.ti.com/lit/gpn/tps40422
+
+Author: Zhu Laiwen <richard.zhu@nsn.com>
+
+
+Description
+-----------
+
+This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck
+Controller with PMBus
+
+The driver is a client driver to the core PMBus driver.
+Please see Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported.
+
+in[1-2]_label		"vout[1-2]"
+in[1-2]_input		Measured voltage. From READ_VOUT register.
+in[1-2]_alarm		voltage alarm.
+
+curr[1-2]_input		Measured current. From READ_IOUT register.
+curr[1-2]_label		"iout[1-2]"
+curr1_max		Maximum current. From IOUT_OC_WARN_LIMIT register.
+curr1_crit		Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr1_max_alarm		Current high alarm. From IOUT_OC_WARN_LIMIT status.
+curr1_crit_alarm	Current critical high alarm. From IOUT_OC_FAULT status.
+curr2_alarm		Current high alarm. From IOUT_OC_WARNING status.
+
+temp1_input		Measured temperature. From READ_TEMPERATURE_2 register on page 0.
+temp1_max		Maximum temperature. From OT_WARN_LIMIT register.
+temp1_crit		Critical high temperature. From OT_FAULT_LIMIT register.
+temp1_max_alarm		Chip temperature high alarm. Set by comparing
+			READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if TEMP_OT_WARNING
+			status is set.
+temp1_crit_alarm	Chip temperature critical high alarm. Set by comparing
+			READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if TEMP_OT_FAULT
+			status is set.
+temp2_input		Measured temperature. From READ_TEMPERATURE_2 register on page 1.
+temp2_alarm		Chip temperature alarm on page 1.

drivers/hwmon/Kconfig

@@ -554,6 +554,17 @@ config SENSORS_IBMPEX
 	  This driver can also be built as a module.  If so, the module
 	  will be called ibmpex.
 
+config SENSORS_IBMPOWERNV
+	tristate "IBM POWERNV platform sensors"
+	depends on PPC_POWERNV
+	default y
+	help
+	  If you say yes here you get support for the temperature/fan/power
+	  sensors on your PowerNV platform.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called ibmpowernv.
+
 config SENSORS_IIO_HWMON
 	tristate "Hwmon driver that uses channels specified via iio maps"
 	depends on IIO
@@ -608,6 +619,18 @@ config SENSORS_JC42
 	  This driver can also be built as a module.  If so, the module
 	  will be called jc42.
 
+config SENSORS_POWR1220
+	tristate "Lattice POWR1220 Power Monitoring"
+	depends on I2C
+	default n
+	help
+	  If you say yes here you get access to the hardware monitoring
+	  functions of the Lattice POWR1220 isp Power Supply Monitoring,
+	  Sequencing and Margining Controller.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called powr1220.
+
 config SENSORS_LINEAGE
 	tristate "Lineage Compact Power Line Power Entry Module"
 	depends on I2C
@@ -882,8 +905,8 @@ config SENSORS_LM75
 		- NXP's LM75A
 		- ST Microelectronics STDS75
 		- TelCom (now Microchip) TCN75
-		- Texas Instruments TMP100, TMP101, TMP105, TMP75, TMP175,
-		  TMP275
+		- Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75,
+		  TMP175, TMP275
 
 	  This driver supports driver model based binding through board
 	  specific I2C device tables.
@@ -1061,7 +1084,7 @@ config SENSORS_NTC_THERMISTOR
 
 	  Currently, this driver supports
 	  NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333
-	  from Murata.
+	  from Murata and B57330V2103 from EPCOS.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called ntc-thermistor.
@@ -1082,8 +1105,8 @@ config SENSORS_NCT6775
 	select HWMON_VID
 	help
 	  If you say yes here you get support for the hardware monitoring
-	  functionality of the Nuvoton NCT6775F, NCT6776F, NCT6779D
-	  and compatible Super-I/O chips. This driver replaces the
+	  functionality of the Nuvoton NCT6106D, NCT6775F, NCT6776F, NCT6779D,
+	  NCT6791D and compatible Super-I/O chips. This driver replaces the
 	  w83627ehf driver for NCT6775F and NCT6776F.
 
 	  This driver can also be built as a module.  If so, the module
@@ -1105,6 +1128,17 @@ config SENSORS_PCF8591
 
 source drivers/hwmon/pmbus/Kconfig
 
+config SENSORS_PWM_FAN
+	tristate "PWM fan"
+	depends on (PWM && OF) || COMPILE_TEST
+	help
+	  If you say yes here you get support for fans connected to PWM lines.
+	  The driver uses the generic PWM interface, thus it will work on a
+	  variety of SoCs.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called pwm-fan.
+
 config SENSORS_SHT15
 	tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
 	depends on GPIOLIB
@@ -1393,6 +1427,17 @@ config SENSORS_TMP102
 	  This driver can also be built as a module.  If so, the module
 	  will be called tmp102.
 
+config SENSORS_TMP103
+	tristate "Texas Instruments TMP103"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  If you say yes here you get support for Texas Instruments TMP103
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called tmp103.
+
 config SENSORS_TMP401
 	tristate "Texas Instruments TMP401 and compatibles"
 	depends on I2C
@@ -1408,7 +1453,7 @@ config SENSORS_TMP421
 	depends on I2C
 	help
 	  If you say yes here you get support for Texas Instruments TMP421,
-	  TMP422 and TMP423 temperature sensor chips.
+	  TMP422, TMP423, TMP441, and TMP442 temperature sensor chips.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called tmp421.

drivers/hwmon/Makefile

@@ -71,6 +71,7 @@ obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o
 obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o
 obj-$(CONFIG_SENSORS_IBMAEM)	+= ibmaem.o
 obj-$(CONFIG_SENSORS_IBMPEX)	+= ibmpex.o
+obj-$(CONFIG_SENSORS_IBMPOWERNV)+= ibmpowernv.o
 obj-$(CONFIG_SENSORS_IIO_HWMON) += iio_hwmon.o
 obj-$(CONFIG_SENSORS_INA209)	+= ina209.o
 obj-$(CONFIG_SENSORS_INA2XX)	+= ina2xx.o
@@ -120,6 +121,8 @@ obj-$(CONFIG_SENSORS_NTC_THERMISTOR)	+= ntc_thermistor.o
 obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o
 obj-$(CONFIG_SENSORS_PC87427)	+= pc87427.o
 obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
+obj-$(CONFIG_SENSORS_POWR1220)  += powr1220.o
+obj-$(CONFIG_SENSORS_PWM_FAN)	+= pwm-fan.o
 obj-$(CONFIG_SENSORS_S3C)	+= s3c-hwmon.o
 obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o
 obj-$(CONFIG_SENSORS_SCH5627)	+= sch5627.o
@@ -135,6 +138,7 @@ obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
 obj-$(CONFIG_SENSORS_AMC6821)	+= amc6821.o
 obj-$(CONFIG_SENSORS_THMC50)	+= thmc50.o
 obj-$(CONFIG_SENSORS_TMP102)	+= tmp102.o
+obj-$(CONFIG_SENSORS_TMP103)	+= tmp103.o
 obj-$(CONFIG_SENSORS_TMP401)	+= tmp401.o
 obj-$(CONFIG_SENSORS_TMP421)	+= tmp421.o
 obj-$(CONFIG_SENSORS_TWL4030_MADC)+= twl4030-madc-hwmon.o

drivers/hwmon/ad7414.c

@@ -39,7 +39,7 @@
 static u8 AD7414_REG_LIMIT[] = { AD7414_REG_T_HIGH, AD7414_REG_T_LOW };
 
 struct ad7414_data {
-	struct device		*hwmon_dev;
+	struct i2c_client	*client;
 	struct mutex		lock;	/* atomic read data updates */
 	char			valid;	/* !=0 if following fields are valid */
 	unsigned long		next_update;	/* In jiffies */
@@ -72,8 +72,8 @@ static inline int ad7414_write(struct i2c_client *client, u8 reg, u8 value)
 
 static struct ad7414_data *ad7414_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7414_data *data = i2c_get_clientdata(client);
+	struct ad7414_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->lock);
 
@@ -127,8 +127,8 @@ static ssize_t set_max_min(struct device *dev,
 			   struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7414_data *data = i2c_get_clientdata(client);
+	struct ad7414_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int index = to_sensor_dev_attr(attr)->index;
 	u8 reg = AD7414_REG_LIMIT[index];
 	long temp;
@@ -164,7 +164,7 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 3);
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 4);
 
-static struct attribute *ad7414_attributes[] = {
+static struct attribute *ad7414_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
@@ -173,27 +173,25 @@ static struct attribute *ad7414_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group ad7414_group = {
-	.attrs = ad7414_attributes,
-};
+ATTRIBUTE_GROUPS(ad7414);
 
 static int ad7414_probe(struct i2c_client *client,
 			const struct i2c_device_id *dev_id)
 {
+	struct device *dev = &client->dev;
 	struct ad7414_data *data;
+	struct device *hwmon_dev;
 	int conf;
-	int err;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 				     I2C_FUNC_SMBUS_READ_WORD_DATA))
 		return -EOPNOTSUPP;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct ad7414_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct ad7414_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->lock);
 
 	dev_info(&client->dev, "chip found\n");
@@ -201,38 +199,16 @@ static int ad7414_probe(struct i2c_client *client,
 	/* Make sure the chip is powered up. */
 	conf = i2c_smbus_read_byte_data(client, AD7414_REG_CONF);
 	if (conf < 0)
-		dev_warn(&client->dev,
-			 "ad7414_probe unable to read config register.\n");
+		dev_warn(dev, "ad7414_probe unable to read config register.\n");
 	else {
 		conf &= ~(1 << 7);
 		i2c_smbus_write_byte_data(client, AD7414_REG_CONF, conf);
 	}
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &ad7414_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-	return err;
-}
-
-static int ad7414_remove(struct i2c_client *client)
-{
-	struct ad7414_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+							   client->name,
+							   data, ad7414_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ad7414_id[] = {
@@ -246,7 +222,6 @@ static struct i2c_driver ad7414_driver = {
 		.name	= "ad7414",
 	},
 	.probe	= ad7414_probe,
-	.remove	= ad7414_remove,
 	.id_table = ad7414_id,
 };
 

drivers/hwmon/ad7418.c

@@ -44,8 +44,7 @@ static const u8 AD7418_REG_TEMP[] = { AD7418_REG_TEMP_IN,
 					AD7418_REG_TEMP_OS };
 
 struct ad7418_data {
-	struct device		*hwmon_dev;
-	struct attribute_group	attrs;
+	struct i2c_client	*client;
 	enum chips		type;
 	struct mutex		lock;
 	int			adc_max;	/* number of ADC channels */
@@ -55,48 +54,10 @@ struct ad7418_data {
 	u16			in[4];
 };
 
-static int ad7418_probe(struct i2c_client *client,
-			const struct i2c_device_id *id);
-static int ad7418_remove(struct i2c_client *client);
-
-static const struct i2c_device_id ad7418_id[] = {
-	{ "ad7416", ad7416 },
-	{ "ad7417", ad7417 },
-	{ "ad7418", ad7418 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, ad7418_id);
-
-static struct i2c_driver ad7418_driver = {
-	.driver = {
-		.name	= "ad7418",
-	},
-	.probe		= ad7418_probe,
-	.remove		= ad7418_remove,
-	.id_table	= ad7418_id,
-};
-
-static void ad7418_init_client(struct i2c_client *client)
-{
-	struct ad7418_data *data = i2c_get_clientdata(client);
-
-	int reg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF);
-	if (reg < 0) {
-		dev_err(&client->dev, "cannot read configuration register\n");
-	} else {
-		dev_info(&client->dev, "configuring for mode 1\n");
-		i2c_smbus_write_byte_data(client, AD7418_REG_CONF, reg & 0xfe);
-
-		if (data->type == ad7417 || data->type == ad7418)
-			i2c_smbus_write_byte_data(client,
-						AD7418_REG_CONF2, 0x00);
-	}
-}
-
 static struct ad7418_data *ad7418_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7418_data *data = i2c_get_clientdata(client);
+	struct ad7418_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->lock);
 
@@ -165,8 +126,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7418_data *data = i2c_get_clientdata(client);
+	struct ad7418_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 	int ret = kstrtol(buf, 10, &temp);
 
@@ -193,14 +154,15 @@ static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_adc, NULL, 1);
 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_adc, NULL, 2);
 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_adc, NULL, 3);
 
-static struct attribute *ad7416_attributes[] = {
+static struct attribute *ad7416_attrs[] = {
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(ad7416);
 
-static struct attribute *ad7417_attributes[] = {
+static struct attribute *ad7417_attrs[] = {
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
@@ -210,83 +172,100 @@ static struct attribute *ad7417_attributes[] = {
 	&sensor_dev_attr_in4_input.dev_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(ad7417);
 
-static struct attribute *ad7418_attributes[] = {
+static struct attribute *ad7418_attrs[] = {
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(ad7418);
+
+static void ad7418_init_client(struct i2c_client *client)
+{
+	struct ad7418_data *data = i2c_get_clientdata(client);
+
+	int reg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF);
+	if (reg < 0) {
+		dev_err(&client->dev, "cannot read configuration register\n");
+	} else {
+		dev_info(&client->dev, "configuring for mode 1\n");
+		i2c_smbus_write_byte_data(client, AD7418_REG_CONF, reg & 0xfe);
+
+		if (data->type == ad7417 || data->type == ad7418)
+			i2c_smbus_write_byte_data(client,
+						AD7418_REG_CONF2, 0x00);
+	}
+}
 
 static int ad7418_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct i2c_adapter *adapter = client->adapter;
 	struct ad7418_data *data;
-	int err;
+	struct device *hwmon_dev;
+	const struct attribute_group **attr_groups = NULL;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 					I2C_FUNC_SMBUS_WORD_DATA))
 		return -EOPNOTSUPP;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct ad7418_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct ad7418_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 
 	mutex_init(&data->lock);
+	data->client = client;
 	data->type = id->driver_data;
 
 	switch (data->type) {
 	case ad7416:
 		data->adc_max = 0;
-		data->attrs.attrs = ad7416_attributes;
+		attr_groups = ad7416_groups;
 		break;
 
 	case ad7417:
 		data->adc_max = 4;
-		data->attrs.attrs = ad7417_attributes;
+		attr_groups = ad7417_groups;
 		break;
 
 	case ad7418:
 		data->adc_max = 1;
-		data->attrs.attrs = ad7418_attributes;
+		attr_groups = ad7418_groups;
 		break;
 	}
 
-	dev_info(&client->dev, "%s chip found\n", client->name);
+	dev_info(dev, "%s chip found\n", client->name);
 
 	/* Initialize the AD7418 chip */
 	ad7418_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+							   client->name,
+							   data, attr_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int ad7418_remove(struct i2c_client *client)
-{
-	struct ad7418_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	return 0;
-}
+static const struct i2c_device_id ad7418_id[] = {
+	{ "ad7416", ad7416 },
+	{ "ad7417", ad7417 },
+	{ "ad7418", ad7418 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ad7418_id);
+
+static struct i2c_driver ad7418_driver = {
+	.driver = {
+		.name	= "ad7418",
+	},
+	.probe		= ad7418_probe,
+	.id_table	= ad7418_id,
+};
 
 module_i2c_driver(ad7418_driver);
 

drivers/hwmon/adm1021.c

@@ -98,41 +98,63 @@ struct adm1021_data {
 	u8 remote_temp_offset_prec;
 };
 
-static int adm1021_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1021_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void adm1021_init_client(struct i2c_client *client);
-static struct adm1021_data *adm1021_update_device(struct device *dev);
-
 /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
 static bool read_only;
 
+static struct adm1021_data *adm1021_update_device(struct device *dev)
+{
+	struct adm1021_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
-static const struct i2c_device_id adm1021_id[] = {
-	{ "adm1021", adm1021 },
-	{ "adm1023", adm1023 },
-	{ "max1617", max1617 },
-	{ "max1617a", max1617a },
-	{ "thmc10", thmc10 },
-	{ "lm84", lm84 },
-	{ "gl523sm", gl523sm },
-	{ "mc1066", mc1066 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1021_id);
+	mutex_lock(&data->update_lock);
 
-/* This is the driver that will be inserted */
-static struct i2c_driver adm1021_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adm1021",
-	},
-	.probe		= adm1021_probe,
-	.id_table	= adm1021_id,
-	.detect		= adm1021_detect,
-	.address_list	= normal_i2c,
-};
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i;
+
+		dev_dbg(dev, "Starting adm1021 update\n");
+
+		for (i = 0; i < 2; i++) {
+			data->temp[i] = 1000 *
+				(s8) i2c_smbus_read_byte_data(
+					client, ADM1021_REG_TEMP(i));
+			data->temp_max[i] = 1000 *
+				(s8) i2c_smbus_read_byte_data(
+					client, ADM1021_REG_TOS_R(i));
+			if (data->type != lm84) {
+				data->temp_min[i] = 1000 *
+				  (s8) i2c_smbus_read_byte_data(client,
+							ADM1021_REG_THYST_R(i));
+			}
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_STATUS) & 0x7c;
+		if (data->type == adm1023) {
+			/*
+			 * The ADM1023 provides 3 extra bits of precision for
+			 * the remote sensor in extra registers.
+			 */
+			data->temp[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_TEMP_PREC) >> 5);
+			data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_TOS_PREC) >> 5);
+			data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
+				client, ADM1023_REG_REM_THYST_PREC) >> 5);
+			data->remote_temp_offset =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET);
+			data->remote_temp_offset_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET_PREC);
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 static ssize_t show_temp(struct device *dev,
 			 struct device_attribute *devattr, char *buf)
@@ -411,6 +433,15 @@ static int adm1021_detect(struct i2c_client *client,
 	return 0;
 }
 
+static void adm1021_init_client(struct i2c_client *client)
+{
+	/* Enable ADC and disable suspend mode */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
+		i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
+	/* Set Conversion rate to 1/sec (this can be tinkered with) */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
+}
+
 static int adm1021_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -440,69 +471,29 @@ static int adm1021_probe(struct i2c_client *client,
 	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static void adm1021_init_client(struct i2c_client *client)
-{
-	/* Enable ADC and disable suspend mode */
-	i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
-		i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
-	/* Set Conversion rate to 1/sec (this can be tinkered with) */
-	i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
-}
-
-static struct adm1021_data *adm1021_update_device(struct device *dev)
-{
-	struct adm1021_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	    || !data->valid) {
-		int i;
-
-		dev_dbg(dev, "Starting adm1021 update\n");
-
-		for (i = 0; i < 2; i++) {
-			data->temp[i] = 1000 *
-				(s8) i2c_smbus_read_byte_data(
-					client, ADM1021_REG_TEMP(i));
-			data->temp_max[i] = 1000 *
-				(s8) i2c_smbus_read_byte_data(
-					client, ADM1021_REG_TOS_R(i));
-			if (data->type != lm84) {
-				data->temp_min[i] = 1000 *
-				  (s8) i2c_smbus_read_byte_data(client,
-							ADM1021_REG_THYST_R(i));
-			}
-		}
-		data->alarms = i2c_smbus_read_byte_data(client,
-						ADM1021_REG_STATUS) & 0x7c;
-		if (data->type == adm1023) {
-			/*
-			 * The ADM1023 provides 3 extra bits of precision for
-			 * the remote sensor in extra registers.
-			 */
-			data->temp[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_TEMP_PREC) >> 5);
-			data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_TOS_PREC) >> 5);
-			data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
-				client, ADM1023_REG_REM_THYST_PREC) >> 5);
-			data->remote_temp_offset =
-				i2c_smbus_read_byte_data(client,
-						ADM1023_REG_REM_OFFSET);
-			data->remote_temp_offset_prec =
-				i2c_smbus_read_byte_data(client,
-						ADM1023_REG_REM_OFFSET_PREC);
-		}
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1021_id[] = {
+	{ "adm1021", adm1021 },
+	{ "adm1023", adm1023 },
+	{ "max1617", max1617 },
+	{ "max1617a", max1617a },
+	{ "thmc10", thmc10 },
+	{ "lm84", lm84 },
+	{ "gl523sm", gl523sm },
+	{ "mc1066", mc1066 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1021_id);
 
-	return data;
-}
+static struct i2c_driver adm1021_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1021",
+	},
+	.probe		= adm1021_probe,
+	.id_table	= adm1021_id,
+	.detect		= adm1021_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1021_driver);
 

drivers/hwmon/adm1025.c

@@ -102,47 +102,13 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
 				 (((val) < 0 ? (val) - 500 : \
 				   (val) + 500) / 1000))
 
-/*
- * Functions declaration
- */
-
-static int adm1025_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1025_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void adm1025_init_client(struct i2c_client *client);
-static int adm1025_remove(struct i2c_client *client);
-static struct adm1025_data *adm1025_update_device(struct device *dev);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id adm1025_id[] = {
-	{ "adm1025", adm1025 },
-	{ "ne1619", ne1619 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1025_id);
-
-static struct i2c_driver adm1025_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adm1025",
-	},
-	.probe		= adm1025_probe,
-	.remove		= adm1025_remove,
-	.id_table	= adm1025_id,
-	.detect		= adm1025_detect,
-	.address_list	= normal_i2c,
-};
-
 /*
  * Client data (each client gets its own)
  */
 
 struct adm1025_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -158,6 +124,51 @@ struct adm1025_data {
 	u8 vrm;
 };
 
+static struct adm1025_data *adm1025_update_device(struct device *dev)
+{
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		int i;
+
+		dev_dbg(&client->dev, "Updating data.\n");
+		for (i = 0; i < 6; i++) {
+			data->in[i] = i2c_smbus_read_byte_data(client,
+				      ADM1025_REG_IN(i));
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+					  ADM1025_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+					  ADM1025_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 2; i++) {
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+					ADM1025_REG_TEMP(i));
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+					    ADM1025_REG_TEMP_LOW(i));
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+					    ADM1025_REG_TEMP_HIGH(i));
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+			       ADM1025_REG_STATUS1)
+			     | (i2c_smbus_read_byte_data(client,
+				ADM1025_REG_STATUS2) << 8);
+		data->vid = (i2c_smbus_read_byte_data(client,
+			     ADM1025_REG_VID) & 0x0f)
+			  | ((i2c_smbus_read_byte_data(client,
+			      ADM1025_REG_VID4) & 0x01) << 4);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /*
  * Sysfs stuff
  */
@@ -217,8 +228,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1025_data *data = i2c_get_clientdata(client);
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -238,8 +249,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1025_data *data = i2c_get_clientdata(client);
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -273,8 +284,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1025_data *data = i2c_get_clientdata(client);
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -294,8 +305,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1025_data *data = i2c_get_clientdata(client);
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -470,51 +481,6 @@ static int adm1025_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int adm1025_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct adm1025_data *data;
-	int err;
-	u8 config;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct adm1025_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	mutex_init(&data->update_lock);
-
-	/* Initialize the ADM1025 chip */
-	adm1025_init_client(client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &adm1025_group);
-	if (err)
-		return err;
-
-	/* Pin 11 is either in4 (+12V) or VID4 */
-	config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
-	if (!(config & 0x20)) {
-		err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4);
-		if (err)
-			goto exit_remove;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
-	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
-	return err;
-}
-
 static void adm1025_init_client(struct i2c_client *client)
 {
 	u8 reg;
@@ -557,61 +523,54 @@ static void adm1025_init_client(struct i2c_client *client)
 					  (reg&0x7E)|0x01);
 }
 
-static int adm1025_remove(struct i2c_client *client)
+static int adm1025_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	struct adm1025_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
-	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
-
-	return 0;
-}
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct adm1025_data *data;
+	u8 config;
 
-static struct adm1025_data *adm1025_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1025_data *data = i2c_get_clientdata(client);
+	data = devm_kzalloc(dev, sizeof(struct adm1025_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	mutex_lock(&data->update_lock);
+	i2c_set_clientdata(client, data);
+	data->client = client;
+	mutex_init(&data->update_lock);
 
-	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
-		int i;
+	/* Initialize the ADM1025 chip */
+	adm1025_init_client(client);
 
-		dev_dbg(&client->dev, "Updating data.\n");
-		for (i = 0; i < 6; i++) {
-			data->in[i] = i2c_smbus_read_byte_data(client,
-				      ADM1025_REG_IN(i));
-			data->in_min[i] = i2c_smbus_read_byte_data(client,
-					  ADM1025_REG_IN_MIN(i));
-			data->in_max[i] = i2c_smbus_read_byte_data(client,
-					  ADM1025_REG_IN_MAX(i));
-		}
-		for (i = 0; i < 2; i++) {
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-					ADM1025_REG_TEMP(i));
-			data->temp_min[i] = i2c_smbus_read_byte_data(client,
-					    ADM1025_REG_TEMP_LOW(i));
-			data->temp_max[i] = i2c_smbus_read_byte_data(client,
-					    ADM1025_REG_TEMP_HIGH(i));
-		}
-		data->alarms = i2c_smbus_read_byte_data(client,
-			       ADM1025_REG_STATUS1)
-			     | (i2c_smbus_read_byte_data(client,
-				ADM1025_REG_STATUS2) << 8);
-		data->vid = (i2c_smbus_read_byte_data(client,
-			     ADM1025_REG_VID) & 0x0f)
-			  | ((i2c_smbus_read_byte_data(client,
-			      ADM1025_REG_VID4) & 0x01) << 4);
+	/* sysfs hooks */
+	data->groups[0] = &adm1025_group;
+	/* Pin 11 is either in4 (+12V) or VID4 */
+	config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
+	if (!(config & 0x20))
+		data->groups[1] = &adm1025_group_in4;
 
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1025_id[] = {
+	{ "adm1025", adm1025 },
+	{ "ne1619", ne1619 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1025_id);
 
-	return data;
-}
+static struct i2c_driver adm1025_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1025",
+	},
+	.probe		= adm1025_probe,
+	.id_table	= adm1025_id,
+	.detect		= adm1025_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1025_driver);
 

drivers/hwmon/adm1026.c

@@ -266,7 +266,8 @@ struct pwm_data {
 };
 
 struct adm1026_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 
 	struct mutex update_lock;
 	int valid;		/* !=0 if following fields are valid */
@@ -298,37 +299,6 @@ struct adm1026_data {
 	u8 config3;		/* Register value */
 };
 
-static int adm1026_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1026_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static int adm1026_remove(struct i2c_client *client);
-static int adm1026_read_value(struct i2c_client *client, u8 reg);
-static int adm1026_write_value(struct i2c_client *client, u8 reg, int value);
-static void adm1026_print_gpio(struct i2c_client *client);
-static void adm1026_fixup_gpio(struct i2c_client *client);
-static struct adm1026_data *adm1026_update_device(struct device *dev);
-static void adm1026_init_client(struct i2c_client *client);
-
-
-static const struct i2c_device_id adm1026_id[] = {
-	{ "adm1026", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1026_id);
-
-static struct i2c_driver adm1026_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adm1026",
-	},
-	.probe		= adm1026_probe,
-	.remove		= adm1026_remove,
-	.id_table	= adm1026_id,
-	.detect		= adm1026_detect,
-	.address_list	= normal_i2c,
-};
-
 static int adm1026_read_value(struct i2c_client *client, u8 reg)
 {
 	int res;
@@ -357,212 +327,10 @@ static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
 	return res;
 }
 
-static void adm1026_init_client(struct i2c_client *client)
-{
-	int value, i;
-	struct adm1026_data *data = i2c_get_clientdata(client);
-
-	dev_dbg(&client->dev, "Initializing device\n");
-	/* Read chip config */
-	data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
-	data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
-	data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
-
-	/* Inform user of chip config */
-	dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
-		data->config1);
-	if ((data->config1 & CFG1_MONITOR) == 0) {
-		dev_dbg(&client->dev,
-			"Monitoring not currently enabled.\n");
-	}
-	if (data->config1 & CFG1_INT_ENABLE) {
-		dev_dbg(&client->dev,
-			"SMBALERT interrupts are enabled.\n");
-	}
-	if (data->config1 & CFG1_AIN8_9) {
-		dev_dbg(&client->dev,
-			"in8 and in9 enabled. temp3 disabled.\n");
-	} else {
-		dev_dbg(&client->dev,
-			"temp3 enabled.  in8 and in9 disabled.\n");
-	}
-	if (data->config1 & CFG1_THERM_HOT) {
-		dev_dbg(&client->dev,
-			"Automatic THERM, PWM, and temp limits enabled.\n");
-	}
-
-	if (data->config3 & CFG3_GPIO16_ENABLE) {
-		dev_dbg(&client->dev,
-			"GPIO16 enabled.  THERM pin disabled.\n");
-	} else {
-		dev_dbg(&client->dev,
-			"THERM pin enabled.  GPIO16 disabled.\n");
-	}
-	if (data->config3 & CFG3_VREF_250)
-		dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
-	else
-		dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
-	/* Read and pick apart the existing GPIO configuration */
-	value = 0;
-	for (i = 0; i <= 15; ++i) {
-		if ((i & 0x03) == 0) {
-			value = adm1026_read_value(client,
-					ADM1026_REG_GPIO_CFG_0_3 + i / 4);
-		}
-		data->gpio_config[i] = value & 0x03;
-		value >>= 2;
-	}
-	data->gpio_config[16] = (data->config3 >> 6) & 0x03;
-
-	/* ... and then print it */
-	adm1026_print_gpio(client);
-
-	/*
-	 * If the user asks us to reprogram the GPIO config, then
-	 * do it now.
-	 */
-	if (gpio_input[0] != -1 || gpio_output[0] != -1
-		|| gpio_inverted[0] != -1 || gpio_normal[0] != -1
-		|| gpio_fan[0] != -1) {
-		adm1026_fixup_gpio(client);
-	}
-
-	/*
-	 * WE INTENTIONALLY make no changes to the limits,
-	 *   offsets, pwms, fans and zones.  If they were
-	 *   configured, we don't want to mess with them.
-	 *   If they weren't, the default is 100% PWM, no
-	 *   control and will suffice until 'sensors -s'
-	 *   can be run by the user.  We DO set the default
-	 *   value for pwm1.auto_pwm_min to its maximum
-	 *   so that enabling automatic pwm fan control
-	 *   without first setting a value for pwm1.auto_pwm_min
-	 *   will not result in potentially dangerous fan speed decrease.
-	 */
-	data->pwm1.auto_pwm_min = 255;
-	/* Start monitoring */
-	value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
-	/* Set MONITOR, clear interrupt acknowledge and s/w reset */
-	value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
-	dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
-	data->config1 = value;
-	adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
-
-	/* initialize fan_div[] to hardware defaults */
-	value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
-		(adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
-	for (i = 0; i <= 7; ++i) {
-		data->fan_div[i] = DIV_FROM_REG(value & 0x03);
-		value >>= 2;
-	}
-}
-
-static void adm1026_print_gpio(struct i2c_client *client)
-{
-	struct adm1026_data *data = i2c_get_clientdata(client);
-	int i;
-
-	dev_dbg(&client->dev, "GPIO config is:\n");
-	for (i = 0; i <= 7; ++i) {
-		if (data->config2 & (1 << i)) {
-			dev_dbg(&client->dev, "\t%sGP%s%d\n",
-				data->gpio_config[i] & 0x02 ? "" : "!",
-				data->gpio_config[i] & 0x01 ? "OUT" : "IN",
-				i);
-		} else {
-			dev_dbg(&client->dev, "\tFAN%d\n", i);
-		}
-	}
-	for (i = 8; i <= 15; ++i) {
-		dev_dbg(&client->dev, "\t%sGP%s%d\n",
-			data->gpio_config[i] & 0x02 ? "" : "!",
-			data->gpio_config[i] & 0x01 ? "OUT" : "IN",
-			i);
-	}
-	if (data->config3 & CFG3_GPIO16_ENABLE) {
-		dev_dbg(&client->dev, "\t%sGP%s16\n",
-			data->gpio_config[16] & 0x02 ? "" : "!",
-			data->gpio_config[16] & 0x01 ? "OUT" : "IN");
-	} else {
-		/* GPIO16 is THERM */
-		dev_dbg(&client->dev, "\tTHERM\n");
-	}
-}
-
-static void adm1026_fixup_gpio(struct i2c_client *client)
-{
-	struct adm1026_data *data = i2c_get_clientdata(client);
-	int i;
-	int value;
-
-	/* Make the changes requested. */
-	/*
-	 * We may need to unlock/stop monitoring or soft-reset the
-	 *    chip before we can make changes.  This hasn't been
-	 *    tested much.  FIXME
-	 */
-
-	/* Make outputs */
-	for (i = 0; i <= 16; ++i) {
-		if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
-			data->gpio_config[gpio_output[i]] |= 0x01;
-		/* if GPIO0-7 is output, it isn't a FAN tach */
-		if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
-			data->config2 |= 1 << gpio_output[i];
-	}
-
-	/* Input overrides output */
-	for (i = 0; i <= 16; ++i) {
-		if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
-			data->gpio_config[gpio_input[i]] &= ~0x01;
-		/* if GPIO0-7 is input, it isn't a FAN tach */
-		if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
-			data->config2 |= 1 << gpio_input[i];
-	}
-
-	/* Inverted */
-	for (i = 0; i <= 16; ++i) {
-		if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
-			data->gpio_config[gpio_inverted[i]] &= ~0x02;
-	}
-
-	/* Normal overrides inverted */
-	for (i = 0; i <= 16; ++i) {
-		if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
-			data->gpio_config[gpio_normal[i]] |= 0x02;
-	}
-
-	/* Fan overrides input and output */
-	for (i = 0; i <= 7; ++i) {
-		if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
-			data->config2 &= ~(1 << gpio_fan[i]);
-	}
-
-	/* Write new configs to registers */
-	adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
-	data->config3 = (data->config3 & 0x3f)
-			| ((data->gpio_config[16] & 0x03) << 6);
-	adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
-	for (i = 15, value = 0; i >= 0; --i) {
-		value <<= 2;
-		value |= data->gpio_config[i] & 0x03;
-		if ((i & 0x03) == 0) {
-			adm1026_write_value(client,
-					ADM1026_REG_GPIO_CFG_0_3 + i/4,
-					value);
-			value = 0;
-		}
-	}
-
-	/* Print the new config */
-	adm1026_print_gpio(client);
-}
-
-
 static struct adm1026_data *adm1026_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int i;
 	long value, alarms, gpio;
 
@@ -728,8 +496,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -756,8 +524,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -815,8 +583,8 @@ static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -840,8 +608,8 @@ static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr,
 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -888,8 +656,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -923,8 +691,8 @@ fan_offset(8);
 /* Adjust fan_min to account for new fan divisor */
 static void fixup_fan_min(struct device *dev, int fan, int old_div)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int new_min;
 	int new_div = data->fan_div[fan];
 
@@ -952,8 +720,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int orig_div, new_div;
 	int err;
@@ -1024,8 +792,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1053,8 +821,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1097,8 +865,8 @@ static ssize_t set_temp_offset(struct device *dev,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1153,8 +921,8 @@ static ssize_t set_temp_auto_point1_temp(struct device *dev,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1192,8 +960,8 @@ static ssize_t show_temp_crit_enable(struct device *dev,
 static ssize_t set_temp_crit_enable(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1233,8 +1001,8 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1268,8 +1036,8 @@ static ssize_t set_analog_out_reg(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1378,8 +1146,8 @@ static ssize_t show_alarm_mask(struct device *dev,
 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long mask;
 	long val;
 	int err;
@@ -1420,8 +1188,8 @@ static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long gpio;
 	long val;
 	int err;
@@ -1453,8 +1221,8 @@ static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr,
 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long mask;
 	long val;
 	int err;
@@ -1487,8 +1255,8 @@ static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr,
 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	if (data->pwm1.enable == 1) {
 		long val;
@@ -1517,8 +1285,8 @@ static ssize_t set_auto_pwm_min(struct device *dev,
 				struct device_attribute *attr, const char *buf,
 				size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1553,8 +1321,8 @@ static ssize_t show_pwm_enable(struct device *dev,
 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1026_data *data = i2c_get_clientdata(client);
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int old_enable;
 	unsigned long val;
 	int err;
@@ -1829,18 +1597,220 @@ static int adm1026_detect(struct i2c_client *client,
 	return 0;
 }
 
+static void adm1026_print_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+
+	dev_dbg(&client->dev, "GPIO config is:\n");
+	for (i = 0; i <= 7; ++i) {
+		if (data->config2 & (1 << i)) {
+			dev_dbg(&client->dev, "\t%sGP%s%d\n",
+				data->gpio_config[i] & 0x02 ? "" : "!",
+				data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+				i);
+		} else {
+			dev_dbg(&client->dev, "\tFAN%d\n", i);
+		}
+	}
+	for (i = 8; i <= 15; ++i) {
+		dev_dbg(&client->dev, "\t%sGP%s%d\n",
+			data->gpio_config[i] & 0x02 ? "" : "!",
+			data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+			i);
+	}
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev, "\t%sGP%s16\n",
+			data->gpio_config[16] & 0x02 ? "" : "!",
+			data->gpio_config[16] & 0x01 ? "OUT" : "IN");
+	} else {
+		/* GPIO16 is THERM */
+		dev_dbg(&client->dev, "\tTHERM\n");
+	}
+}
+
+static void adm1026_fixup_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+	int value;
+
+	/* Make the changes requested. */
+	/*
+	 * We may need to unlock/stop monitoring or soft-reset the
+	 *    chip before we can make changes.  This hasn't been
+	 *    tested much.  FIXME
+	 */
+
+	/* Make outputs */
+	for (i = 0; i <= 16; ++i) {
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
+			data->gpio_config[gpio_output[i]] |= 0x01;
+		/* if GPIO0-7 is output, it isn't a FAN tach */
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
+			data->config2 |= 1 << gpio_output[i];
+	}
+
+	/* Input overrides output */
+	for (i = 0; i <= 16; ++i) {
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
+			data->gpio_config[gpio_input[i]] &= ~0x01;
+		/* if GPIO0-7 is input, it isn't a FAN tach */
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
+			data->config2 |= 1 << gpio_input[i];
+	}
+
+	/* Inverted */
+	for (i = 0; i <= 16; ++i) {
+		if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
+			data->gpio_config[gpio_inverted[i]] &= ~0x02;
+	}
+
+	/* Normal overrides inverted */
+	for (i = 0; i <= 16; ++i) {
+		if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
+			data->gpio_config[gpio_normal[i]] |= 0x02;
+	}
+
+	/* Fan overrides input and output */
+	for (i = 0; i <= 7; ++i) {
+		if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
+			data->config2 &= ~(1 << gpio_fan[i]);
+	}
+
+	/* Write new configs to registers */
+	adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
+	data->config3 = (data->config3 & 0x3f)
+			| ((data->gpio_config[16] & 0x03) << 6);
+	adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
+	for (i = 15, value = 0; i >= 0; --i) {
+		value <<= 2;
+		value |= data->gpio_config[i] & 0x03;
+		if ((i & 0x03) == 0) {
+			adm1026_write_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i/4,
+					value);
+			value = 0;
+		}
+	}
+
+	/* Print the new config */
+	adm1026_print_gpio(client);
+}
+
+static void adm1026_init_client(struct i2c_client *client)
+{
+	int value, i;
+	struct adm1026_data *data = i2c_get_clientdata(client);
+
+	dev_dbg(&client->dev, "Initializing device\n");
+	/* Read chip config */
+	data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
+	data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
+
+	/* Inform user of chip config */
+	dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
+		data->config1);
+	if ((data->config1 & CFG1_MONITOR) == 0) {
+		dev_dbg(&client->dev,
+			"Monitoring not currently enabled.\n");
+	}
+	if (data->config1 & CFG1_INT_ENABLE) {
+		dev_dbg(&client->dev,
+			"SMBALERT interrupts are enabled.\n");
+	}
+	if (data->config1 & CFG1_AIN8_9) {
+		dev_dbg(&client->dev,
+			"in8 and in9 enabled. temp3 disabled.\n");
+	} else {
+		dev_dbg(&client->dev,
+			"temp3 enabled.  in8 and in9 disabled.\n");
+	}
+	if (data->config1 & CFG1_THERM_HOT) {
+		dev_dbg(&client->dev,
+			"Automatic THERM, PWM, and temp limits enabled.\n");
+	}
+
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev,
+			"GPIO16 enabled.  THERM pin disabled.\n");
+	} else {
+		dev_dbg(&client->dev,
+			"THERM pin enabled.  GPIO16 disabled.\n");
+	}
+	if (data->config3 & CFG3_VREF_250)
+		dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
+	else
+		dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
+	/* Read and pick apart the existing GPIO configuration */
+	value = 0;
+	for (i = 0; i <= 15; ++i) {
+		if ((i & 0x03) == 0) {
+			value = adm1026_read_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i / 4);
+		}
+		data->gpio_config[i] = value & 0x03;
+		value >>= 2;
+	}
+	data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+	/* ... and then print it */
+	adm1026_print_gpio(client);
+
+	/*
+	 * If the user asks us to reprogram the GPIO config, then
+	 * do it now.
+	 */
+	if (gpio_input[0] != -1 || gpio_output[0] != -1
+		|| gpio_inverted[0] != -1 || gpio_normal[0] != -1
+		|| gpio_fan[0] != -1) {
+		adm1026_fixup_gpio(client);
+	}
+
+	/*
+	 * WE INTENTIONALLY make no changes to the limits,
+	 *   offsets, pwms, fans and zones.  If they were
+	 *   configured, we don't want to mess with them.
+	 *   If they weren't, the default is 100% PWM, no
+	 *   control and will suffice until 'sensors -s'
+	 *   can be run by the user.  We DO set the default
+	 *   value for pwm1.auto_pwm_min to its maximum
+	 *   so that enabling automatic pwm fan control
+	 *   without first setting a value for pwm1.auto_pwm_min
+	 *   will not result in potentially dangerous fan speed decrease.
+	 */
+	data->pwm1.auto_pwm_min = 255;
+	/* Start monitoring */
+	value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	/* Set MONITOR, clear interrupt acknowledge and s/w reset */
+	value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
+	dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
+	data->config1 = value;
+	adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
+
+	/* initialize fan_div[] to hardware defaults */
+	value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
+		(adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
+	for (i = 0; i <= 7; ++i) {
+		data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+		value >>= 2;
+	}
+}
+
 static int adm1026_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct adm1026_data *data;
-	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct adm1026_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Set the VRM version */
@@ -1849,48 +1819,34 @@ static int adm1026_probe(struct i2c_client *client,
 	/* Initialize the ADM1026 chip */
 	adm1026_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &adm1026_group);
-	if (err)
-		return err;
+	/* sysfs hooks */
+	data->groups[0] = &adm1026_group;
 	if (data->config1 & CFG1_AIN8_9)
-		err = sysfs_create_group(&client->dev.kobj,
-					 &adm1026_group_in8_9);
+		data->groups[1] = &adm1026_group_in8_9;
 	else
-		err = sysfs_create_group(&client->dev.kobj,
-					 &adm1026_group_temp3);
-	if (err)
-		goto exitremove;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exitremove;
-	}
-
-	return 0;
+		data->groups[1] = &adm1026_group_temp3;
 
-	/* Error out and cleanup code */
-exitremove:
-	sysfs_remove_group(&client->dev.kobj, &adm1026_group);
-	if (data->config1 & CFG1_AIN8_9)
-		sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
-	else
-		sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int adm1026_remove(struct i2c_client *client)
-{
-	struct adm1026_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm1026_group);
-	if (data->config1 & CFG1_AIN8_9)
-		sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
-	else
-		sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
-	return 0;
-}
+static const struct i2c_device_id adm1026_id[] = {
+	{ "adm1026", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1026_id);
+
+static struct i2c_driver adm1026_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1026",
+	},
+	.probe		= adm1026_probe,
+	.id_table	= adm1026_id,
+	.detect		= adm1026_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1026_driver);
 

drivers/hwmon/adm1029.c

@@ -105,46 +105,12 @@ static const u8 ADM1029_REG_FAN_DIV[] = {
 	ADM1029_REG_FAN2_CONFIG,
 };
 
-/*
- * Functions declaration
- */
-
-static int adm1029_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1029_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static int adm1029_remove(struct i2c_client *client);
-static struct adm1029_data *adm1029_update_device(struct device *dev);
-static int adm1029_init_client(struct i2c_client *client);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id adm1029_id[] = {
-	{ "adm1029", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1029_id);
-
-static struct i2c_driver adm1029_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name = "adm1029",
-	},
-	.probe		= adm1029_probe,
-	.remove		= adm1029_remove,
-	.id_table	= adm1029_id,
-	.detect		= adm1029_detect,
-	.address_list	= normal_i2c,
-};
-
 /*
  * Client data (each client gets its own)
  */
 
 struct adm1029_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;		/* zero until following fields are valid */
 	unsigned long last_updated;	/* in jiffies */
@@ -155,6 +121,50 @@ struct adm1029_data {
 	u8 fan_div[ARRAY_SIZE(ADM1029_REG_FAN_DIV)];
 };
 
+/*
+ * function that update the status of the chips (temperature for example)
+ */
+static struct adm1029_data *adm1029_update_device(struct device *dev)
+{
+	struct adm1029_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+
+	mutex_lock(&data->update_lock);
+	/*
+	 * Use the "cache" Luke, don't recheck values
+	 * if there are already checked not a long time later
+	 */
+	if (time_after(jiffies, data->last_updated + HZ * 2)
+	 || !data->valid) {
+		int nr;
+
+		dev_dbg(&client->dev, "Updating adm1029 data\n");
+
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) {
+			data->temp[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_TEMP[nr]);
+		}
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) {
+			data->fan[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_FAN[nr]);
+		}
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) {
+			data->fan_div[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_FAN_DIV[nr]);
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /*
  * Sysfs stuff
  */
@@ -197,8 +207,8 @@ show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 static ssize_t set_fan_div(struct device *dev,
 	    struct device_attribute *devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1029_data *data = i2c_get_clientdata(client);
+	struct adm1029_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	u8 reg;
 	long val;
@@ -270,7 +280,7 @@ static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
 static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
 			  show_fan_div, set_fan_div, 1);
 
-static struct attribute *adm1029_attributes[] = {
+static struct attribute *adm1029_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -289,9 +299,7 @@ static struct attribute *adm1029_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group adm1029_group = {
-	.attrs = adm1029_attributes,
-};
+ATTRIBUTE_GROUPS(adm1029);
 
 /*
  * Real code
@@ -340,48 +348,10 @@ static int adm1029_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int adm1029_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct adm1029_data *data;
-	int err;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct adm1029_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	mutex_init(&data->update_lock);
-
-	/*
-	 * Initialize the ADM1029 chip
-	 * Check config register
-	 */
-	if (adm1029_init_client(client) == 0)
-		return -ENODEV;
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &adm1029_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
- exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
-	return err;
-}
-
 static int adm1029_init_client(struct i2c_client *client)
 {
 	u8 config;
+
 	config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG);
 	if ((config & 0x10) == 0) {
 		i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG,
@@ -396,59 +366,49 @@ static int adm1029_init_client(struct i2c_client *client)
 	return 1;
 }
 
-static int adm1029_remove(struct i2c_client *client)
+static int adm1029_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	struct adm1029_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
+	struct device *dev = &client->dev;
+	struct adm1029_data *data;
+	struct device *hwmon_dev;
 
-	return 0;
-}
+	data = devm_kzalloc(dev, sizeof(struct adm1029_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-/*
- * function that update the status of the chips (temperature for example)
- */
-static struct adm1029_data *adm1029_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1029_data *data = i2c_get_clientdata(client);
+	data->client = client;
+	mutex_init(&data->update_lock);
 
-	mutex_lock(&data->update_lock);
 	/*
-	 * Use the "cache" Luke, don't recheck values
-	 * if there are already checked not a long time later
+	 * Initialize the ADM1029 chip
+	 * Check config register
 	 */
-	if (time_after(jiffies, data->last_updated + HZ * 2)
-	 || !data->valid) {
-		int nr;
-
-		dev_dbg(&client->dev, "Updating adm1029 data\n");
-
-		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) {
-			data->temp[nr] =
-			    i2c_smbus_read_byte_data(client,
-						     ADM1029_REG_TEMP[nr]);
-		}
-		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) {
-			data->fan[nr] =
-			    i2c_smbus_read_byte_data(client,
-						     ADM1029_REG_FAN[nr]);
-		}
-		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) {
-			data->fan_div[nr] =
-			    i2c_smbus_read_byte_data(client,
-						     ADM1029_REG_FAN_DIV[nr]);
-		}
+	if (adm1029_init_client(client) == 0)
+		return -ENODEV;
 
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   adm1029_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1029_id[] = {
+	{ "adm1029", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1029_id);
 
-	return data;
-}
+static struct i2c_driver adm1029_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "adm1029",
+	},
+	.probe		= adm1029_probe,
+	.id_table	= adm1029_id,
+	.detect		= adm1029_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1029_driver);
 

drivers/hwmon/adm1031.c

@@ -74,7 +74,8 @@ typedef u8 auto_chan_table_t[8][2];
 
 /* Each client has this additional data */
 struct adm1031_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex update_lock;
 	int chip_type;
 	char valid;		/* !=0 if following fields are valid */
@@ -105,34 +106,6 @@ struct adm1031_data {
 	s8 temp_crit[3];
 };
 
-static int adm1031_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm1031_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void adm1031_init_client(struct i2c_client *client);
-static int adm1031_remove(struct i2c_client *client);
-static struct adm1031_data *adm1031_update_device(struct device *dev);
-
-static const struct i2c_device_id adm1031_id[] = {
-	{ "adm1030", adm1030 },
-	{ "adm1031", adm1031 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm1031_id);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver adm1031_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name = "adm1031",
-	},
-	.probe		= adm1031_probe,
-	.remove		= adm1031_remove,
-	.id_table	= adm1031_id,
-	.detect		= adm1031_detect,
-	.address_list	= normal_i2c,
-};
-
 static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
 {
 	return i2c_smbus_read_byte_data(client, reg);
@@ -144,6 +117,96 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
+static struct adm1031_data *adm1031_update_device(struct device *dev)
+{
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	unsigned long next_update;
+	int chan;
+
+	mutex_lock(&data->update_lock);
+
+	next_update = data->last_updated
+	  + msecs_to_jiffies(data->update_interval);
+	if (time_after(jiffies, next_update) || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting adm1031 update\n");
+		for (chan = 0;
+		     chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
+			u8 oldh, newh;
+
+			oldh =
+			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+			data->ext_temp[chan] =
+			    adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
+			newh =
+			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+			if (newh != oldh) {
+				data->ext_temp[chan] =
+				    adm1031_read_value(client,
+						       ADM1031_REG_EXT_TEMP);
+#ifdef DEBUG
+				oldh =
+				    adm1031_read_value(client,
+						       ADM1031_REG_TEMP(chan));
+
+				/* oldh is actually newer */
+				if (newh != oldh)
+					dev_warn(&client->dev,
+					  "Remote temperature may be wrong.\n");
+#endif
+			}
+			data->temp[chan] = newh;
+
+			data->temp_offset[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_OFFSET(chan));
+			data->temp_min[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_MIN(chan));
+			data->temp_max[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_MAX(chan));
+			data->temp_crit[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_CRIT(chan));
+			data->auto_temp[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_AUTO_TEMP(chan));
+
+		}
+
+		data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
+		data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+
+		data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
+		    | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
+		if (data->chip_type == adm1030)
+			data->alarm &= 0xc0ff;
+
+		for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
+		     chan++) {
+			data->fan_div[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_FAN_DIV(chan));
+			data->fan_min[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_FAN_MIN(chan));
+			data->fan[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_FAN_SPEED(chan));
+			data->pwm[chan] =
+			  (adm1031_read_value(client,
+					ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 #define TEMP_TO_REG(val)		(((val) < 0 ? ((val - 500) / 1000) : \
 					((val + 500) / 1000)))
@@ -280,8 +343,8 @@ static ssize_t
 set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
 		     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	u8 reg;
@@ -355,8 +418,8 @@ static ssize_t
 set_auto_temp_min(struct device *dev, struct device_attribute *attr,
 		  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -385,8 +448,8 @@ static ssize_t
 set_auto_temp_max(struct device *dev, struct device_attribute *attr,
 		  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -428,8 +491,8 @@ static ssize_t show_pwm(struct device *dev,
 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 		       const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret, reg;
@@ -541,8 +604,8 @@ static ssize_t show_fan_min(struct device *dev,
 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -565,8 +628,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	u8 tmp;
@@ -667,8 +730,8 @@ static ssize_t set_temp_offset(struct device *dev,
 			       struct device_attribute *attr, const char *buf,
 			       size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -688,8 +751,8 @@ static ssize_t set_temp_offset(struct device *dev,
 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -709,8 +772,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -730,8 +793,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	long val;
 	int ret;
@@ -807,8 +870,7 @@ static const unsigned int update_intervals[] = {
 static ssize_t show_update_interval(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
 
 	return sprintf(buf, "%u\n", data->update_interval);
 }
@@ -817,8 +879,8 @@ static ssize_t set_update_interval(struct device *dev,
 				   struct device_attribute *attr,
 				   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
+	struct adm1031_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int i, err;
 	u8 reg;
@@ -950,64 +1012,6 @@ static int adm1031_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int adm1031_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct adm1031_data *data;
-	int err;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct adm1031_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	data->chip_type = id->driver_data;
-	mutex_init(&data->update_lock);
-
-	if (data->chip_type == adm1030)
-		data->chan_select_table = &auto_channel_select_table_adm1030;
-	else
-		data->chan_select_table = &auto_channel_select_table_adm1031;
-
-	/* Initialize the ADM1031 chip */
-	adm1031_init_client(client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
-	if (err)
-		return err;
-
-	if (data->chip_type == adm1031) {
-		err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
-		if (err)
-			goto exit_remove;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &adm1031_group);
-	sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
-	return err;
-}
-
-static int adm1031_remove(struct i2c_client *client)
-{
-	struct adm1031_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm1031_group);
-	sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
-	return 0;
-}
-
 static void adm1031_init_client(struct i2c_client *client)
 {
 	unsigned int read_val;
@@ -1039,96 +1043,57 @@ static void adm1031_init_client(struct i2c_client *client)
 	data->update_interval = update_intervals[i];
 }
 
-static struct adm1031_data *adm1031_update_device(struct device *dev)
+static int adm1031_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm1031_data *data = i2c_get_clientdata(client);
-	unsigned long next_update;
-	int chan;
-
-	mutex_lock(&data->update_lock);
-
-	next_update = data->last_updated
-	  + msecs_to_jiffies(data->update_interval);
-	if (time_after(jiffies, next_update) || !data->valid) {
-
-		dev_dbg(&client->dev, "Starting adm1031 update\n");
-		for (chan = 0;
-		     chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
-			u8 oldh, newh;
-
-			oldh =
-			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
-			data->ext_temp[chan] =
-			    adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
-			newh =
-			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
-			if (newh != oldh) {
-				data->ext_temp[chan] =
-				    adm1031_read_value(client,
-						       ADM1031_REG_EXT_TEMP);
-#ifdef DEBUG
-				oldh =
-				    adm1031_read_value(client,
-						       ADM1031_REG_TEMP(chan));
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct adm1031_data *data;
 
-				/* oldh is actually newer */
-				if (newh != oldh)
-					dev_warn(&client->dev,
-					  "Remote temperature may be wrong.\n");
-#endif
-			}
-			data->temp[chan] = newh;
+	data = devm_kzalloc(dev, sizeof(struct adm1031_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-			data->temp_offset[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_TEMP_OFFSET(chan));
-			data->temp_min[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_TEMP_MIN(chan));
-			data->temp_max[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_TEMP_MAX(chan));
-			data->temp_crit[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_TEMP_CRIT(chan));
-			data->auto_temp[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_AUTO_TEMP(chan));
+	i2c_set_clientdata(client, data);
+	data->client = client;
+	data->chip_type = id->driver_data;
+	mutex_init(&data->update_lock);
 
-		}
+	if (data->chip_type == adm1030)
+		data->chan_select_table = &auto_channel_select_table_adm1030;
+	else
+		data->chan_select_table = &auto_channel_select_table_adm1031;
 
-		data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
-		data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+	/* Initialize the ADM1031 chip */
+	adm1031_init_client(client);
 
-		data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
-		    | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
-		if (data->chip_type == adm1030)
-			data->alarm &= 0xc0ff;
+	/* sysfs hooks */
+	data->groups[0] = &adm1031_group;
+	if (data->chip_type == adm1031)
+		data->groups[1] = &adm1031_group_opt;
 
-		for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
-		     chan++) {
-			data->fan_div[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_FAN_DIV(chan));
-			data->fan_min[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_FAN_MIN(chan));
-			data->fan[chan] =
-			    adm1031_read_value(client,
-					       ADM1031_REG_FAN_SPEED(chan));
-			data->pwm[chan] =
-			  (adm1031_read_value(client,
-					ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
-		}
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1031_id[] = {
+	{ "adm1030", adm1030 },
+	{ "adm1031", adm1031 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1031_id);
 
-	return data;
-}
+static struct i2c_driver adm1031_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "adm1031",
+	},
+	.probe		= adm1031_probe,
+	.id_table	= adm1031_id,
+	.detect		= adm1031_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm1031_driver);
 

drivers/hwmon/adm9240.c

@@ -130,38 +130,9 @@ static inline unsigned int AOUT_FROM_REG(u8 reg)
 	return SCALE(reg, 1250, 255);
 }
 
-static int adm9240_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adm9240_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void adm9240_init_client(struct i2c_client *client);
-static int adm9240_remove(struct i2c_client *client);
-static struct adm9240_data *adm9240_update_device(struct device *dev);
-
-/* driver data */
-static const struct i2c_device_id adm9240_id[] = {
-	{ "adm9240", adm9240 },
-	{ "ds1780", ds1780 },
-	{ "lm81", lm81 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adm9240_id);
-
-static struct i2c_driver adm9240_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adm9240",
-	},
-	.probe		= adm9240_probe,
-	.remove		= adm9240_remove,
-	.id_table	= adm9240_id,
-	.detect		= adm9240_detect,
-	.address_list	= normal_i2c,
-};
-
 /* per client data */
 struct adm9240_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;
 	unsigned long last_updated_measure;
@@ -181,6 +152,110 @@ struct adm9240_data {
 	u8 vrm;			/* --	vrm set on startup, no accessor */
 };
 
+/* write new fan div, callers must hold data->update_lock */
+static void adm9240_write_fan_div(struct i2c_client *client, int nr,
+		u8 fan_div)
+{
+	u8 reg, old, shift = (nr + 2) * 2;
+
+	reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
+	old = (reg >> shift) & 3;
+	reg &= ~(3 << shift);
+	reg |= (fan_div << shift);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg);
+	dev_dbg(&client->dev,
+		"fan%d clock divider changed from %u to %u\n",
+		nr + 1, 1 << old, 1 << fan_div);
+}
+
+static struct adm9240_data *adm9240_update_device(struct device *dev)
+{
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	/* minimum measurement cycle: 1.75 seconds */
+	if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4))
+			|| !data->valid) {
+
+		for (i = 0; i < 6; i++) { /* read voltages */
+			data->in[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN(i));
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_INT(0)) |
+					i2c_smbus_read_byte_data(client,
+					ADM9240_REG_INT(1)) << 8;
+
+		/*
+		 * read temperature: assume temperature changes less than
+		 * 0.5'C per two measurement cycles thus ignore possible
+		 * but unlikely aliasing error on lsb reading. --Grant
+		 */
+		data->temp = ((i2c_smbus_read_byte_data(client,
+					ADM9240_REG_TEMP) << 8) |
+					i2c_smbus_read_byte_data(client,
+					ADM9240_REG_TEMP_CONF)) / 128;
+
+		for (i = 0; i < 2; i++) { /* read fans */
+			data->fan[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_FAN(i));
+
+			/* adjust fan clock divider on overflow */
+			if (data->valid && data->fan[i] == 255 &&
+					data->fan_div[i] < 3) {
+
+				adm9240_write_fan_div(client, i,
+						++data->fan_div[i]);
+
+				/* adjust fan_min if active, but not to 0 */
+				if (data->fan_min[i] < 255 &&
+						data->fan_min[i] >= 2)
+					data->fan_min[i] /= 2;
+			}
+		}
+		data->last_updated_measure = jiffies;
+	}
+
+	/* minimum config reading cycle: 300 seconds */
+	if (time_after(jiffies, data->last_updated_config + (HZ * 300))
+			|| !data->valid) {
+
+		for (i = 0; i < 6; i++) {
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 2; i++) {
+			data->fan_min[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_FAN_MIN(i));
+		}
+		data->temp_max[0] = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_TEMP_MAX(0));
+		data->temp_max[1] = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_TEMP_MAX(1));
+
+		/* read fan divs and 5-bit VID */
+		i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
+		data->fan_div[0] = (i >> 4) & 3;
+		data->fan_div[1] = (i >> 6) & 3;
+		data->vid = i & 0x0f;
+		data->vid |= (i2c_smbus_read_byte_data(client,
+					ADM9240_REG_VID4) & 1) << 4;
+		/* read analog out */
+		data->aout = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_ANALOG_OUT);
+
+		data->last_updated_config = jiffies;
+		data->valid = 1;
+	}
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
 /*** sysfs accessors ***/
 
 /* temperature */
@@ -203,8 +278,8 @@ static ssize_t set_max(struct device *dev, struct device_attribute *devattr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -259,8 +334,8 @@ static ssize_t set_in_min(struct device *dev,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -281,8 +356,8 @@ static ssize_t set_in_max(struct device *dev,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -340,22 +415,6 @@ static ssize_t show_fan_div(struct device *dev,
 	return sprintf(buf, "%d\n", 1 << data->fan_div[attr->index]);
 }
 
-/* write new fan div, callers must hold data->update_lock */
-static void adm9240_write_fan_div(struct i2c_client *client, int nr,
-		u8 fan_div)
-{
-	u8 reg, old, shift = (nr + 2) * 2;
-
-	reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
-	old = (reg >> shift) & 3;
-	reg &= ~(3 << shift);
-	reg |= (fan_div << shift);
-	i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg);
-	dev_dbg(&client->dev,
-		"fan%d clock divider changed from %u to %u\n",
-		nr + 1, 1 << old, 1 << fan_div);
-}
-
 /*
  * set fan speed low limit:
  *
@@ -372,8 +431,8 @@ static ssize_t set_fan_min(struct device *dev,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = attr->index;
 	u8 new_div;
 	unsigned long val;
@@ -485,8 +544,8 @@ static ssize_t set_aout(struct device *dev,
 		struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -506,8 +565,8 @@ static ssize_t chassis_clear(struct device *dev,
 		struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
+	struct adm9240_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 
 	if (kstrtoul(buf, 10, &val) || val != 0)
@@ -524,7 +583,7 @@ static ssize_t chassis_clear(struct device *dev,
 static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm,
 		chassis_clear, 12);
 
-static struct attribute *adm9240_attributes[] = {
+static struct attribute *adm9240_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in0_min.dev_attr.attr,
 	&sensor_dev_attr_in0_max.dev_attr.attr,
@@ -568,9 +627,7 @@ static struct attribute *adm9240_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group adm9240_group = {
-	.attrs = adm9240_attributes,
-};
+ATTRIBUTE_GROUPS(adm9240);
 
 
 /*** sensor chip detect and driver install ***/
@@ -620,49 +677,6 @@ static int adm9240_detect(struct i2c_client *new_client,
 	return 0;
 }
 
-static int adm9240_probe(struct i2c_client *new_client,
-			 const struct i2c_device_id *id)
-{
-	struct adm9240_data *data;
-	int err;
-
-	data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(new_client, data);
-	mutex_init(&data->update_lock);
-
-	adm9240_init_client(new_client);
-
-	/* populate sysfs filesystem */
-	err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&new_client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&new_client->dev.kobj, &adm9240_group);
-	return err;
-}
-
-static int adm9240_remove(struct i2c_client *client)
-{
-	struct adm9240_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adm9240_group);
-
-	return 0;
-}
-
 static void adm9240_init_client(struct i2c_client *client)
 {
 	struct adm9240_data *data = i2c_get_clientdata(client);
@@ -705,93 +719,48 @@ static void adm9240_init_client(struct i2c_client *client)
 	}
 }
 
-static struct adm9240_data *adm9240_update_device(struct device *dev)
+static int adm9240_probe(struct i2c_client *new_client,
+			 const struct i2c_device_id *id)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adm9240_data *data = i2c_get_clientdata(client);
-	int i;
-
-	mutex_lock(&data->update_lock);
-
-	/* minimum measurement cycle: 1.75 seconds */
-	if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4))
-			|| !data->valid) {
-
-		for (i = 0; i < 6; i++) { /* read voltages */
-			data->in[i] = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_IN(i));
-		}
-		data->alarms = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_INT(0)) |
-					i2c_smbus_read_byte_data(client,
-					ADM9240_REG_INT(1)) << 8;
-
-		/*
-		 * read temperature: assume temperature changes less than
-		 * 0.5'C per two measurement cycles thus ignore possible
-		 * but unlikely aliasing error on lsb reading. --Grant
-		 */
-		data->temp = ((i2c_smbus_read_byte_data(client,
-					ADM9240_REG_TEMP) << 8) |
-					i2c_smbus_read_byte_data(client,
-					ADM9240_REG_TEMP_CONF)) / 128;
-
-		for (i = 0; i < 2; i++) { /* read fans */
-			data->fan[i] = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_FAN(i));
-
-			/* adjust fan clock divider on overflow */
-			if (data->valid && data->fan[i] == 255 &&
-					data->fan_div[i] < 3) {
+	struct device *dev = &new_client->dev;
+	struct device *hwmon_dev;
+	struct adm9240_data *data;
 
-				adm9240_write_fan_div(client, i,
-						++data->fan_div[i]);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-				/* adjust fan_min if active, but not to 0 */
-				if (data->fan_min[i] < 255 &&
-						data->fan_min[i] >= 2)
-					data->fan_min[i] /= 2;
-			}
-		}
-		data->last_updated_measure = jiffies;
-	}
+	i2c_set_clientdata(new_client, data);
+	data->client = new_client;
+	mutex_init(&data->update_lock);
 
-	/* minimum config reading cycle: 300 seconds */
-	if (time_after(jiffies, data->last_updated_config + (HZ * 300))
-			|| !data->valid) {
+	adm9240_init_client(new_client);
 
-		for (i = 0; i < 6; i++) {
-			data->in_min[i] = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_IN_MIN(i));
-			data->in_max[i] = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_IN_MAX(i));
-		}
-		for (i = 0; i < 2; i++) {
-			data->fan_min[i] = i2c_smbus_read_byte_data(client,
-					ADM9240_REG_FAN_MIN(i));
-		}
-		data->temp_max[0] = i2c_smbus_read_byte_data(client,
-				ADM9240_REG_TEMP_MAX(0));
-		data->temp_max[1] = i2c_smbus_read_byte_data(client,
-				ADM9240_REG_TEMP_MAX(1));
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+							   new_client->name,
+							   data,
+							   adm9240_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-		/* read fan divs and 5-bit VID */
-		i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
-		data->fan_div[0] = (i >> 4) & 3;
-		data->fan_div[1] = (i >> 6) & 3;
-		data->vid = i & 0x0f;
-		data->vid |= (i2c_smbus_read_byte_data(client,
-					ADM9240_REG_VID4) & 1) << 4;
-		/* read analog out */
-		data->aout = i2c_smbus_read_byte_data(client,
-				ADM9240_REG_ANALOG_OUT);
+static const struct i2c_device_id adm9240_id[] = {
+	{ "adm9240", adm9240 },
+	{ "ds1780", ds1780 },
+	{ "lm81", lm81 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm9240_id);
 
-		data->last_updated_config = jiffies;
-		data->valid = 1;
-	}
-	mutex_unlock(&data->update_lock);
-	return data;
-}
+static struct i2c_driver adm9240_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm9240",
+	},
+	.probe		= adm9240_probe,
+	.id_table	= adm9240_id,
+	.detect		= adm9240_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adm9240_driver);
 

drivers/hwmon/ads1015.c

@@ -198,7 +198,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
 		}
 
 		channel = be32_to_cpup(property);
-		if (channel > ADS1015_CHANNELS) {
+		if (channel >= ADS1015_CHANNELS) {
 			dev_err(&client->dev,
 				"invalid channel index %d on %s\n",
 				channel, node->full_name);

drivers/hwmon/ads7828.c

@@ -50,7 +50,7 @@ enum ads7828_chips { ads7828, ads7830 };
 
 /* Client specific data */
 struct ads7828_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;	/* Mutex protecting updates */
 	unsigned long last_updated;	/* Last updated time (in jiffies) */
 	u16 adc_input[ADS7828_NCH];	/* ADS7828_NCH samples */
@@ -72,8 +72,8 @@ static inline u8 ads7828_cmd_byte(u8 cmd, int ch)
 /* Update data for the device (all 8 channels) */
 static struct ads7828_data *ads7828_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ads7828_data *data = i2c_get_clientdata(client);
+	struct ads7828_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->update_lock);
 
@@ -116,7 +116,7 @@ static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, ads7828_show_in, NULL, 5);
 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, ads7828_show_in, NULL, 6);
 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, ads7828_show_in, NULL, 7);
 
-static struct attribute *ads7828_attributes[] = {
+static struct attribute *ads7828_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_in2_input.dev_attr.attr,
@@ -128,29 +128,17 @@ static struct attribute *ads7828_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group ads7828_group = {
-	.attrs = ads7828_attributes,
-};
-
-static int ads7828_remove(struct i2c_client *client)
-{
-	struct ads7828_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-
-	return 0;
-}
+ATTRIBUTE_GROUPS(ads7828);
 
 static int ads7828_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
-	struct ads7828_platform_data *pdata = dev_get_platdata(&client->dev);
+	struct device *dev = &client->dev;
+	struct ads7828_platform_data *pdata = dev_get_platdata(dev);
 	struct ads7828_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct ads7828_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct ads7828_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -182,24 +170,13 @@ static int ads7828_probe(struct i2c_client *client,
 	if (!data->diff_input)
 		data->cmd_byte |= ADS7828_CMD_SD_SE;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
-	err = sysfs_create_group(&client->dev.kobj, &ads7828_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto error;
-	}
-
-	return 0;
-
-error:
-	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   ads7828_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ads7828_device_ids[] = {
@@ -216,7 +193,6 @@ static struct i2c_driver ads7828_driver = {
 
 	.id_table = ads7828_device_ids,
 	.probe = ads7828_probe,
-	.remove = ads7828_remove,
 };
 
 module_i2c_driver(ads7828_driver);

drivers/hwmon/adt7411.c

@@ -51,7 +51,7 @@ struct adt7411_data {
 	struct mutex update_lock;
 	unsigned long next_update;
 	int vref_cached;
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 };
 
 /*
@@ -111,7 +111,8 @@ static int adt7411_modify_bit(struct i2c_client *client, u8 reg, u8 bit,
 static ssize_t adt7411_show_vdd(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7411_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ret = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB,
 			ADT7411_REG_VDD_MSB, 2);
 
@@ -121,7 +122,8 @@ static ssize_t adt7411_show_vdd(struct device *dev,
 static ssize_t adt7411_show_temp(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7411_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int val = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB,
 			ADT7411_REG_INT_TEMP_MSB, 0);
 
@@ -137,8 +139,8 @@ static ssize_t adt7411_show_input(struct device *dev,
 				  struct device_attribute *attr, char *buf)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7411_data *data = i2c_get_clientdata(client);
+	struct adt7411_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int val;
 	u8 lsb_reg, lsb_shift;
 
@@ -180,7 +182,8 @@ static ssize_t adt7411_show_bit(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7411_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ret = i2c_smbus_read_byte_data(client, attr2->index);
 
 	return ret < 0 ? ret : sprintf(buf, "%u\n", !!(ret & attr2->nr));
@@ -191,8 +194,8 @@ static ssize_t adt7411_set_bit(struct device *dev,
 			       size_t count)
 {
 	struct sensor_device_attribute_2 *s_attr2 = to_sensor_dev_attr_2(attr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7411_data *data = i2c_get_clientdata(client);
+	struct adt7411_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ret;
 	unsigned long flag;
 
@@ -245,9 +248,7 @@ static struct attribute *adt7411_attrs[] = {
 	NULL
 };
 
-static const struct attribute_group adt7411_attr_grp = {
-	.attrs = adt7411_attrs,
-};
+ATTRIBUTE_GROUPS(adt7411);
 
 static int adt7411_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
@@ -281,14 +282,17 @@ static int adt7411_detect(struct i2c_client *client,
 static int adt7411_probe(struct i2c_client *client,
 				   const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct adt7411_data *data;
+	struct device *hwmon_dev;
 	int ret;
 
-	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->device_lock);
 	mutex_init(&data->update_lock);
 
@@ -300,32 +304,10 @@ static int adt7411_probe(struct i2c_client *client,
 	/* force update on first occasion */
 	data->next_update = jiffies;
 
-	ret = sysfs_create_group(&client->dev.kobj, &adt7411_attr_grp);
-	if (ret)
-		return ret;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	dev_info(&client->dev, "successfully registered\n");
-
-	return 0;
-
- exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
-	return ret;
-}
-
-static int adt7411_remove(struct i2c_client *client)
-{
-	struct adt7411_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   adt7411_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id adt7411_id[] = {
@@ -339,7 +321,6 @@ static struct i2c_driver adt7411_driver = {
 		.name		= "adt7411",
 	},
 	.probe  = adt7411_probe,
-	.remove	= adt7411_remove,
 	.id_table = adt7411_id,
 	.detect = adt7411_detect,
 	.address_list = normal_i2c,

drivers/hwmon/adt7462.c

@@ -202,8 +202,7 @@ static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END };
 	(((value) & prefix##_MASK) >> prefix##_SHIFT)
 
 struct adt7462_data {
-	struct device		*hwmon_dev;
-	struct attribute_group	attrs;
+	struct i2c_client	*client;
 	struct mutex		lock;
 	char			sensors_valid;
 	char			limits_valid;
@@ -232,30 +231,6 @@ struct adt7462_data {
 	u8			alarms[ADT7462_ALARM_REG_COUNT];
 };
 
-static int adt7462_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adt7462_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static int adt7462_remove(struct i2c_client *client);
-
-static const struct i2c_device_id adt7462_id[] = {
-	{ "adt7462", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adt7462_id);
-
-static struct i2c_driver adt7462_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adt7462",
-	},
-	.probe		= adt7462_probe,
-	.remove		= adt7462_remove,
-	.id_table	= adt7462_id,
-	.detect		= adt7462_detect,
-	.address_list	= normal_i2c,
-};
-
 /*
  * 16-bit registers on the ADT7462 are low-byte first.  The data sheet says
  * that the low byte must be read before the high byte.
@@ -705,8 +680,8 @@ static int find_trange_value(int trange)
 
 static struct adt7462_data *adt7462_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long local_jiffies = jiffies;
 	int i;
 
@@ -828,8 +803,8 @@ static ssize_t set_temp_min(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index))
@@ -866,8 +841,8 @@ static ssize_t set_temp_max(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index))
@@ -929,8 +904,8 @@ static ssize_t set_volt_max(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int x = voltage_multiplier(data, attr->index);
 	long temp;
 
@@ -971,8 +946,8 @@ static ssize_t set_volt_min(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int x = voltage_multiplier(data, attr->index);
 	long temp;
 
@@ -1061,8 +1036,8 @@ static ssize_t set_fan_min(struct device *dev,
 			   const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp) || !temp ||
@@ -1109,8 +1084,8 @@ static ssize_t set_force_pwm_max(struct device *dev,
 				 const char *buf,
 				 size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 	u8 reg;
 
@@ -1142,8 +1117,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1172,8 +1147,8 @@ static ssize_t set_pwm_max(struct device *dev,
 			   const char *buf,
 			   size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1204,8 +1179,8 @@ static ssize_t set_pwm_min(struct device *dev,
 			   size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1238,8 +1213,8 @@ static ssize_t set_pwm_hyst(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1283,8 +1258,8 @@ static ssize_t set_pwm_tmax(struct device *dev,
 {
 	int temp;
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int tmin, trange_value;
 	long trange;
 
@@ -1324,8 +1299,8 @@ static ssize_t set_pwm_tmin(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1381,8 +1356,8 @@ static ssize_t set_pwm_auto(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1440,8 +1415,8 @@ static ssize_t set_pwm_auto_temp(struct device *dev,
 				 size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7462_data *data = i2c_get_clientdata(client);
+	struct adt7462_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -1725,7 +1700,7 @@ static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
 static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO,
 		    show_pwm_auto_temp, set_pwm_auto_temp, 3);
 
-static struct attribute *adt7462_attr[] = {
+static struct attribute *adt7462_attrs[] = {
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp2_max.dev_attr.attr,
 	&sensor_dev_attr_temp3_max.dev_attr.attr,
@@ -1896,6 +1871,8 @@ static struct attribute *adt7462_attr[] = {
 	NULL
 };
 
+ATTRIBUTE_GROUPS(adt7462);
+
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int adt7462_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
@@ -1926,46 +1903,41 @@ static int adt7462_detect(struct i2c_client *client,
 static int adt7462_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct adt7462_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct adt7462_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct adt7462_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->lock);
 
 	dev_info(&client->dev, "%s chip found\n", client->name);
 
-	/* Register sysfs hooks */
-	data->attrs.attrs = adt7462_attr;
-	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   adt7462_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int adt7462_remove(struct i2c_client *client)
-{
-	struct adt7462_data *data = i2c_get_clientdata(client);
+static const struct i2c_device_id adt7462_id[] = {
+	{ "adt7462", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7462_id);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	return 0;
-}
+static struct i2c_driver adt7462_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7462",
+	},
+	.probe		= adt7462_probe,
+	.id_table	= adt7462_id,
+	.detect		= adt7462_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(adt7462_driver);
 

drivers/hwmon/adt7470.c

@@ -143,8 +143,7 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
 #define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
 
 struct adt7470_data {
-	struct device		*hwmon_dev;
-	struct attribute_group	attrs;
+	struct i2c_client	*client;
 	struct mutex		lock;
 	char			sensors_valid;
 	char			limits_valid;
@@ -175,30 +174,6 @@ struct adt7470_data {
 	unsigned int		auto_update_interval;
 };
 
-static int adt7470_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int adt7470_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static int adt7470_remove(struct i2c_client *client);
-
-static const struct i2c_device_id adt7470_id[] = {
-	{ "adt7470", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adt7470_id);
-
-static struct i2c_driver adt7470_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "adt7470",
-	},
-	.probe		= adt7470_probe,
-	.remove		= adt7470_remove,
-	.id_table	= adt7470_id,
-	.detect		= adt7470_detect,
-	.address_list	= normal_i2c,
-};
-
 /*
  * 16-bit registers on the ADT7470 are low-byte first.  The data sheet says
  * that the low byte must be read before the high byte.
@@ -218,18 +193,6 @@ static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg,
 	       || i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
 }
 
-static void adt7470_init_client(struct i2c_client *client)
-{
-	int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
-
-	if (reg < 0) {
-		dev_err(&client->dev, "cannot read configuration register\n");
-	} else {
-		/* start monitoring (and do a self-test) */
-		i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3);
-	}
-}
-
 /* Probe for temperature sensors.  Assumes lock is held */
 static int adt7470_read_temperatures(struct i2c_client *client,
 				     struct adt7470_data *data)
@@ -314,8 +277,8 @@ static int adt7470_update_thread(void *p)
 
 static struct adt7470_data *adt7470_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long local_jiffies = jiffies;
 	u8 cfg;
 	int i;
@@ -445,8 +408,7 @@ static ssize_t set_auto_update_interval(struct device *dev,
 					const char *buf,
 					size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -474,8 +436,7 @@ static ssize_t set_num_temp_sensors(struct device *dev,
 				    const char *buf,
 				    size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -507,8 +468,8 @@ static ssize_t set_temp_min(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -541,8 +502,8 @@ static ssize_t set_temp_max(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -596,8 +557,8 @@ static ssize_t set_fan_max(struct device *dev,
 			   const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp) || !temp)
@@ -633,8 +594,8 @@ static ssize_t set_fan_min(struct device *dev,
 			   const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp) || !temp)
@@ -677,8 +638,8 @@ static ssize_t set_force_pwm_max(struct device *dev,
 				 const char *buf,
 				 size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 	u8 reg;
 
@@ -710,8 +671,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -742,8 +703,8 @@ static ssize_t set_pwm_max(struct device *dev,
 			   size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -775,8 +736,8 @@ static ssize_t set_pwm_min(struct device *dev,
 			   size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -818,8 +779,8 @@ static ssize_t set_pwm_tmin(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long temp;
 
 	if (kstrtol(buf, 10, &temp))
@@ -852,8 +813,8 @@ static ssize_t set_pwm_auto(struct device *dev,
 			    size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index);
 	int pwm_auto_reg_mask;
 	long temp;
@@ -913,8 +874,8 @@ static ssize_t set_pwm_auto_temp(struct device *dev,
 				 size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adt7470_data *data = i2c_get_clientdata(client);
+	struct adt7470_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index);
 	long temp;
 	u8 reg;
@@ -1131,7 +1092,7 @@ static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
 static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO,
 		    show_pwm_auto_temp, set_pwm_auto_temp, 3);
 
-static struct attribute *adt7470_attr[] = {
+static struct attribute *adt7470_attrs[] = {
 	&dev_attr_alarm_mask.attr,
 	&dev_attr_num_temp_sensors.attr,
 	&dev_attr_auto_update_interval.attr,
@@ -1223,6 +1184,8 @@ static struct attribute *adt7470_attr[] = {
 	NULL
 };
 
+ATTRIBUTE_GROUPS(adt7470);
+
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int adt7470_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
@@ -1250,14 +1213,26 @@ static int adt7470_detect(struct i2c_client *client,
 	return 0;
 }
 
+static void adt7470_init_client(struct i2c_client *client)
+{
+	int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+
+	if (reg < 0) {
+		dev_err(&client->dev, "cannot read configuration register\n");
+	} else {
+		/* start monitoring (and do a self-test) */
+		i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3);
+	}
+}
+
 static int adt7470_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct adt7470_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct adt7470_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1265,6 +1240,7 @@ static int adt7470_probe(struct i2c_client *client,
 	data->auto_update_interval = AUTO_UPDATE_INTERVAL;
 
 	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->lock);
 
 	dev_info(&client->dev, "%s chip found\n", client->name);
@@ -1273,32 +1249,21 @@ static int adt7470_probe(struct i2c_client *client,
 	adt7470_init_client(client);
 
 	/* Register sysfs hooks */
-	data->attrs.attrs = adt7470_attr;
-	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   adt7470_groups);
+
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	init_completion(&data->auto_update_stop);
 	data->auto_update = kthread_run(adt7470_update_thread, client, "%s",
-					dev_name(data->hwmon_dev));
+					dev_name(hwmon_dev));
 	if (IS_ERR(data->auto_update)) {
-		err = PTR_ERR(data->auto_update);
-		goto exit_unregister;
+		return PTR_ERR(data->auto_update);
 	}
 
 	return 0;
-
-exit_unregister:
-	hwmon_device_unregister(data->hwmon_dev);
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	return err;
 }
 
 static int adt7470_remove(struct i2c_client *client)
@@ -1307,11 +1272,27 @@ static int adt7470_remove(struct i2c_client *client)
 
 	kthread_stop(data->auto_update);
 	wait_for_completion(&data->auto_update_stop);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &data->attrs);
 	return 0;
 }
 
+static const struct i2c_device_id adt7470_id[] = {
+	{ "adt7470", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7470_id);
+
+static struct i2c_driver adt7470_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7470",
+	},
+	.probe		= adt7470_probe,
+	.remove		= adt7470_remove,
+	.id_table	= adt7470_id,
+	.detect		= adt7470_detect,
+	.address_list	= normal_i2c,
+};
+
 module_i2c_driver(adt7470_driver);
 
 MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>");

drivers/hwmon/amc6821.c

@@ -21,7 +21,6 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-
 #include <linux/kernel.h>	/* Needed for KERN_INFO */
 #include <linux/module.h>
 #include <linux/init.h>
@@ -33,7 +32,6 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 
-
 /*
  * Addresses to scan.
  */
@@ -41,8 +39,6 @@
 static const unsigned short normal_i2c[] = {0x18, 0x19, 0x1a, 0x2c, 0x2d, 0x2e,
 	0x4c, 0x4d, 0x4e, I2C_CLIENT_END};
 
-
-
 /*
  * Insmod parameters
  */
@@ -53,7 +49,6 @@ module_param(pwminv, int, S_IRUGO);
 static int init = 1; /*Power-on initialization.*/
 module_param(init, int, S_IRUGO);
 
-
 enum chips { amc6821 };
 
 #define AMC6821_REG_DEV_ID 0x3D
@@ -152,46 +147,12 @@ static const u8 fan_reg_hi[] = {AMC6821_REG_TDATA_HI,
 			AMC6821_REG_TACH_LLIMITH,
 			AMC6821_REG_TACH_HLIMITH, };
 
-static int amc6821_probe(
-		struct i2c_client *client,
-		const struct i2c_device_id *id);
-static int amc6821_detect(
-		struct i2c_client *client,
-		struct i2c_board_info *info);
-static int amc6821_init_client(struct i2c_client *client);
-static int amc6821_remove(struct i2c_client *client);
-static struct amc6821_data *amc6821_update_device(struct device *dev);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id amc6821_id[] = {
-	{ "amc6821", amc6821 },
-	{ }
-};
-
-MODULE_DEVICE_TABLE(i2c, amc6821_id);
-
-static struct i2c_driver amc6821_driver = {
-	.class = I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "amc6821",
-	},
-	.probe = amc6821_probe,
-	.remove = amc6821_remove,
-	.id_table = amc6821_id,
-	.detect = amc6821_detect,
-	.address_list = normal_i2c,
-};
-
-
 /*
  * Client data (each client gets its own)
  */
 
 struct amc6821_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -213,6 +174,108 @@ struct amc6821_data {
 	u8 stat2;
 };
 
+static struct amc6821_data *amc6821_update_device(struct device *dev)
+{
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int timeout = HZ;
+	u8 reg;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + timeout) ||
+			!data->valid) {
+
+		for (i = 0; i < TEMP_IDX_LEN; i++)
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+				temp_reg[i]);
+
+		data->stat1 = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_STAT1);
+		data->stat2 = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_STAT2);
+
+		data->pwm1 = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_DCY);
+		for (i = 0; i < FAN1_IDX_LEN; i++) {
+			data->fan[i] = i2c_smbus_read_byte_data(
+					client,
+					fan_reg_low[i]);
+			data->fan[i] += i2c_smbus_read_byte_data(
+					client,
+					fan_reg_hi[i]) << 8;
+		}
+		data->fan1_div = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_CONF4);
+		data->fan1_div = data->fan1_div & AMC6821_CONF4_PSPR ? 4 : 2;
+
+		data->pwm1_auto_point_pwm[0] = 0;
+		data->pwm1_auto_point_pwm[2] = 255;
+		data->pwm1_auto_point_pwm[1] = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_DCY_LOW_TEMP);
+
+		data->temp1_auto_point_temp[0] =
+			i2c_smbus_read_byte_data(client,
+					AMC6821_REG_PSV_TEMP);
+		data->temp2_auto_point_temp[0] =
+				data->temp1_auto_point_temp[0];
+		reg = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_LTEMP_FAN_CTRL);
+		data->temp1_auto_point_temp[1] = (reg & 0xF8) >> 1;
+		reg &= 0x07;
+		reg = 0x20 >> reg;
+		if (reg > 0)
+			data->temp1_auto_point_temp[2] =
+				data->temp1_auto_point_temp[1] +
+				(data->pwm1_auto_point_pwm[2] -
+				data->pwm1_auto_point_pwm[1]) / reg;
+		else
+			data->temp1_auto_point_temp[2] = 255;
+
+		reg = i2c_smbus_read_byte_data(client,
+			AMC6821_REG_RTEMP_FAN_CTRL);
+		data->temp2_auto_point_temp[1] = (reg & 0xF8) >> 1;
+		reg &= 0x07;
+		reg = 0x20 >> reg;
+		if (reg > 0)
+			data->temp2_auto_point_temp[2] =
+				data->temp2_auto_point_temp[1] +
+				(data->pwm1_auto_point_pwm[2] -
+				data->pwm1_auto_point_pwm[1]) / reg;
+		else
+			data->temp2_auto_point_temp[2] = 255;
+
+		reg = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1);
+		reg = (reg >> 5) & 0x3;
+		switch (reg) {
+		case 0: /*open loop: software sets pwm1*/
+			data->pwm1_auto_channels_temp = 0;
+			data->pwm1_enable = 1;
+			break;
+		case 2: /*closed loop: remote T (temp2)*/
+			data->pwm1_auto_channels_temp = 2;
+			data->pwm1_enable = 2;
+			break;
+		case 3: /*closed loop: local and remote T (temp2)*/
+			data->pwm1_auto_channels_temp = 3;
+			data->pwm1_enable = 3;
+			break;
+		case 1: /*
+			 * semi-open loop: software sets rpm, chip controls
+			 * pwm1, currently not implemented
+			 */
+			data->pwm1_auto_channels_temp = 0;
+			data->pwm1_enable = 0;
+			break;
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+	mutex_unlock(&data->update_lock);
+	return data;
+}
 
 static ssize_t get_temp(
 		struct device *dev,
@@ -225,16 +288,14 @@ static ssize_t get_temp(
 	return sprintf(buf, "%d\n", data->temp[ix] * 1000);
 }
 
-
-
 static ssize_t set_temp(
 		struct device *dev,
 		struct device_attribute *attr,
 		const char *buf,
 		size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ix = to_sensor_dev_attr(attr)->index;
 	long val;
 
@@ -253,9 +314,6 @@ static ssize_t set_temp(
 	return count;
 }
 
-
-
-
 static ssize_t get_temp_alarm(
 	struct device *dev,
 	struct device_attribute *devattr,
@@ -294,9 +352,6 @@ static ssize_t get_temp_alarm(
 		return sprintf(buf, "0");
 }
 
-
-
-
 static ssize_t get_temp2_fault(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -324,8 +379,8 @@ static ssize_t set_pwm1(
 		const char *buf,
 		size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int ret = kstrtol(buf, 10, &val);
 	if (ret)
@@ -353,18 +408,20 @@ static ssize_t set_pwm1_enable(
 		const char *buf,
 		size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int config = kstrtol(buf, 10, &val);
 	if (config)
 		return config;
 
+	mutex_lock(&data->update_lock);
 	config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1);
 	if (config < 0) {
 			dev_err(&client->dev,
 			"Error reading configuration register, aborting.\n");
-			return config;
+			count = config;
+			goto unlock;
 	}
 
 	switch (val) {
@@ -381,19 +438,19 @@ static ssize_t set_pwm1_enable(
 		config |= AMC6821_CONF1_FDRC1;
 		break;
 	default:
-		return -EINVAL;
+		count = -EINVAL;
+		goto unlock;
 	}
-	mutex_lock(&data->update_lock);
 	if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF1, config)) {
 			dev_err(&client->dev,
 			"Configuration register write error, aborting.\n");
 			count = -EIO;
 	}
+unlock:
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 
-
 static ssize_t get_pwm1_auto_channels_temp(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -403,7 +460,6 @@ static ssize_t get_pwm1_auto_channels_temp(
 	return sprintf(buf, "%d\n", data->pwm1_auto_channels_temp);
 }
 
-
 static ssize_t get_temp_auto_point_temp(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -425,7 +481,6 @@ static ssize_t get_temp_auto_point_temp(
 	}
 }
 
-
 static ssize_t get_pwm1_auto_point_pwm(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -436,7 +491,6 @@ static ssize_t get_pwm1_auto_point_pwm(
 	return sprintf(buf, "%d\n", data->pwm1_auto_point_pwm[ix]);
 }
 
-
 static inline ssize_t set_slope_register(struct i2c_client *client,
 		u8 reg,
 		u8 dpwm,
@@ -459,16 +513,14 @@ static inline ssize_t set_slope_register(struct i2c_client *client,
 	return 0;
 }
 
-
-
 static ssize_t set_temp_auto_point_temp(
 		struct device *dev,
 		struct device_attribute *attr,
 		const char *buf,
 		size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct amc6821_data *data = amc6821_update_device(dev);
+	struct i2c_client *client = data->client;
 	int ix = to_sensor_dev_attr_2(attr)->index;
 	int nr = to_sensor_dev_attr_2(attr)->nr;
 	u8 *ptemp;
@@ -493,8 +545,9 @@ static ssize_t set_temp_auto_point_temp(
 		return -EINVAL;
 	}
 
-	data->valid = 0;
 	mutex_lock(&data->update_lock);
+	data->valid = 0;
+
 	switch (ix) {
 	case 0:
 		ptemp[0] = clamp_val(val / 1000, 0,
@@ -533,16 +586,14 @@ EXIT:
 	return count;
 }
 
-
-
 static ssize_t set_pwm1_auto_point_pwm(
 		struct device *dev,
 		struct device_attribute *attr,
 		const char *buf,
 		size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int dpwm;
 	long val;
 	int ret = kstrtol(buf, 10, &val);
@@ -587,8 +638,6 @@ static ssize_t get_fan(
 	return sprintf(buf, "%d\n", (int)(6000000 / data->fan[ix]));
 }
 
-
-
 static ssize_t get_fan1_fault(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -601,15 +650,13 @@ static ssize_t get_fan1_fault(
 		return sprintf(buf, "0");
 }
 
-
-
 static ssize_t set_fan(
 		struct device *dev,
 		struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int ix = to_sensor_dev_attr(attr)->index;
 	int ret = kstrtol(buf, 10, &val);
@@ -635,8 +682,6 @@ EXIT:
 	return count;
 }
 
-
-
 static ssize_t get_fan1_div(
 		struct device *dev,
 		struct device_attribute *devattr,
@@ -651,20 +696,21 @@ static ssize_t set_fan1_div(
 		struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
+	struct amc6821_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int config = kstrtol(buf, 10, &val);
 	if (config)
 		return config;
 
+	mutex_lock(&data->update_lock);
 	config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF4);
 	if (config < 0) {
 		dev_err(&client->dev,
 			"Error reading configuration register, aborting.\n");
-		return config;
+		count = config;
+		goto EXIT;
 	}
-	mutex_lock(&data->update_lock);
 	switch (val) {
 	case 2:
 		config &= ~AMC6821_CONF4_PSPR;
@@ -688,8 +734,6 @@ EXIT:
 	return count;
 }
 
-
-
 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
 	get_temp, NULL, IDX_TEMP1_INPUT);
 static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO | S_IWUSR, get_temp,
@@ -754,8 +798,6 @@ static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IWUSR | S_IRUGO,
 static SENSOR_DEVICE_ATTR_2(temp2_auto_point3_temp, S_IWUSR | S_IRUGO,
 	get_temp_auto_point_temp, set_temp_auto_point_temp, 2, 2);
 
-
-
 static struct attribute *amc6821_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
@@ -792,11 +834,7 @@ static struct attribute *amc6821_attrs[] = {
 	NULL
 };
 
-static struct attribute_group amc6821_attr_grp = {
-	.attrs = amc6821_attrs,
-};
-
-
+ATTRIBUTE_GROUPS(amc6821);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int amc6821_detect(
@@ -844,53 +882,6 @@ static int amc6821_detect(
 	return 0;
 }
 
-static int amc6821_probe(
-	struct i2c_client *client,
-	const struct i2c_device_id *id)
-{
-	struct amc6821_data *data;
-	int err;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct amc6821_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	mutex_init(&data->update_lock);
-
-	/*
-	 * Initialize the amc6821 chip
-	 */
-	err = amc6821_init_client(client);
-	if (err)
-		return err;
-
-	err = sysfs_create_group(&client->dev.kobj, &amc6821_attr_grp);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (!IS_ERR(data->hwmon_dev))
-		return 0;
-
-	err = PTR_ERR(data->hwmon_dev);
-	dev_err(&client->dev, "error registering hwmon device.\n");
-	sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp);
-	return err;
-}
-
-static int amc6821_remove(struct i2c_client *client)
-{
-	struct amc6821_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp);
-
-	return 0;
-}
-
-
 static int amc6821_init_client(struct i2c_client *client)
 {
 	int config;
@@ -977,109 +968,51 @@ static int amc6821_init_client(struct i2c_client *client)
 	return 0;
 }
 
-
-static struct amc6821_data *amc6821_update_device(struct device *dev)
+static int amc6821_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct amc6821_data *data = i2c_get_clientdata(client);
-	int timeout = HZ;
-	u8 reg;
-	int i;
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + timeout) ||
-			!data->valid) {
-
-		for (i = 0; i < TEMP_IDX_LEN; i++)
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-				temp_reg[i]);
+	struct device *dev = &client->dev;
+	struct amc6821_data *data;
+	struct device *hwmon_dev;
+	int err;
 
-		data->stat1 = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_STAT1);
-		data->stat2 = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_STAT2);
+	data = devm_kzalloc(dev, sizeof(struct amc6821_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-		data->pwm1 = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_DCY);
-		for (i = 0; i < FAN1_IDX_LEN; i++) {
-			data->fan[i] = i2c_smbus_read_byte_data(
-					client,
-					fan_reg_low[i]);
-			data->fan[i] += i2c_smbus_read_byte_data(
-					client,
-					fan_reg_hi[i]) << 8;
-		}
-		data->fan1_div = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_CONF4);
-		data->fan1_div = data->fan1_div & AMC6821_CONF4_PSPR ? 4 : 2;
+	data->client = client;
+	mutex_init(&data->update_lock);
 
-		data->pwm1_auto_point_pwm[0] = 0;
-		data->pwm1_auto_point_pwm[2] = 255;
-		data->pwm1_auto_point_pwm[1] = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_DCY_LOW_TEMP);
+	/*
+	 * Initialize the amc6821 chip
+	 */
+	err = amc6821_init_client(client);
+	if (err)
+		return err;
 
-		data->temp1_auto_point_temp[0] =
-			i2c_smbus_read_byte_data(client,
-					AMC6821_REG_PSV_TEMP);
-		data->temp2_auto_point_temp[0] =
-				data->temp1_auto_point_temp[0];
-		reg = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_LTEMP_FAN_CTRL);
-		data->temp1_auto_point_temp[1] = (reg & 0xF8) >> 1;
-		reg &= 0x07;
-		reg = 0x20 >> reg;
-		if (reg > 0)
-			data->temp1_auto_point_temp[2] =
-				data->temp1_auto_point_temp[1] +
-				(data->pwm1_auto_point_pwm[2] -
-				data->pwm1_auto_point_pwm[1]) / reg;
-		else
-			data->temp1_auto_point_temp[2] = 255;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   amc6821_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-		reg = i2c_smbus_read_byte_data(client,
-			AMC6821_REG_RTEMP_FAN_CTRL);
-		data->temp2_auto_point_temp[1] = (reg & 0xF8) >> 1;
-		reg &= 0x07;
-		reg = 0x20 >> reg;
-		if (reg > 0)
-			data->temp2_auto_point_temp[2] =
-				data->temp2_auto_point_temp[1] +
-				(data->pwm1_auto_point_pwm[2] -
-				data->pwm1_auto_point_pwm[1]) / reg;
-		else
-			data->temp2_auto_point_temp[2] = 255;
+static const struct i2c_device_id amc6821_id[] = {
+	{ "amc6821", amc6821 },
+	{ }
+};
 
-		reg = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1);
-		reg = (reg >> 5) & 0x3;
-		switch (reg) {
-		case 0: /*open loop: software sets pwm1*/
-			data->pwm1_auto_channels_temp = 0;
-			data->pwm1_enable = 1;
-			break;
-		case 2: /*closed loop: remote T (temp2)*/
-			data->pwm1_auto_channels_temp = 2;
-			data->pwm1_enable = 2;
-			break;
-		case 3: /*closed loop: local and remote T (temp2)*/
-			data->pwm1_auto_channels_temp = 3;
-			data->pwm1_enable = 3;
-			break;
-		case 1: /*
-			 * semi-open loop: software sets rpm, chip controls
-			 * pwm1, currently not implemented
-			 */
-			data->pwm1_auto_channels_temp = 0;
-			data->pwm1_enable = 0;
-			break;
-		}
+MODULE_DEVICE_TABLE(i2c, amc6821_id);
 
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-	mutex_unlock(&data->update_lock);
-	return data;
-}
+static struct i2c_driver amc6821_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "amc6821",
+	},
+	.probe = amc6821_probe,
+	.id_table = amc6821_id,
+	.detect = amc6821_detect,
+	.address_list = normal_i2c,
+};
 
 module_i2c_driver(amc6821_driver);
 

drivers/hwmon/asc7621.c

@@ -300,7 +300,7 @@ static ssize_t store_fan16(struct device *dev,
  * respectively. That doesn't mean that's what the motherboard provides. :)
  */
 
-static int asc7621_in_scaling[] = {
+static const int asc7621_in_scaling[] = {
 	2500, 2250, 3300, 5000, 12000
 };
 
@@ -451,7 +451,7 @@ static ssize_t store_temp62(struct device *dev,
  * hwmon specs, we synthesize the auto_point_2 from them.
  */
 
-static u32 asc7621_range_map[] = {
+static const u32 asc7621_range_map[] = {
 	2000, 2500, 3330, 4000, 5000, 6670, 8000, 10000,
 	13330, 16000, 20000, 26670, 32000, 40000, 53330, 80000,
 };
@@ -512,7 +512,7 @@ static ssize_t show_pwm_ac(struct device *dev,
 {
 	SETUP_SHOW_DATA_PARAM(dev, attr);
 	u8 config, altbit, regval;
-	u8 map[] = {
+	const u8 map[] = {
 		0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10,
 		0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f
 	};
@@ -533,7 +533,7 @@ static ssize_t store_pwm_ac(struct device *dev,
 	SETUP_STORE_DATA_PARAM(dev, attr);
 	unsigned long reqval;
 	u8 currval, config, altbit, newval;
-	u16 map[] = {
+	const u16 map[] = {
 		0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06,
 		0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f,
 		0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
@@ -651,7 +651,7 @@ static ssize_t store_pwm_enable(struct device *dev,
 	return count;
 }
 
-static u32 asc7621_pwm_freq_map[] = {
+static const u32 asc7621_pwm_freq_map[] = {
 	10, 15, 23, 30, 38, 47, 62, 94,
 	23000, 24000, 25000, 26000, 27000, 28000, 29000, 30000
 };
@@ -700,7 +700,7 @@ static ssize_t store_pwm_freq(struct device *dev,
 	return count;
 }
 
-static u32 asc7621_pwm_auto_spinup_map[] =  {
+static const u32 asc7621_pwm_auto_spinup_map[] =  {
 	0, 100, 250, 400, 700, 1000, 2000, 4000
 };
 
@@ -749,7 +749,7 @@ static ssize_t store_pwm_ast(struct device *dev,
 	return count;
 }
 
-static u32 asc7621_temp_smoothing_time_map[] = {
+static const u32 asc7621_temp_smoothing_time_map[] = {
 	35000, 17600, 11800, 7000, 4400, 3000, 1600, 800
 };
 

drivers/hwmon/atxp1.c

@@ -46,7 +46,7 @@ MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
 static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END };
 
 struct atxp1_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	unsigned long last_updated;
 	u8 valid;
@@ -61,11 +61,8 @@ struct atxp1_data {
 
 static struct atxp1_data *atxp1_update_device(struct device *dev)
 {
-	struct i2c_client *client;
-	struct atxp1_data *data;
-
-	client = to_i2c_client(dev);
-	data = i2c_get_clientdata(client);
+	struct atxp1_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->update_lock);
 
@@ -105,15 +102,12 @@ static ssize_t atxp1_storevcore(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t count)
 {
-	struct atxp1_data *data;
-	struct i2c_client *client;
+	struct atxp1_data *data = atxp1_update_device(dev);
+	struct i2c_client *client = data->client;
 	int vid, cvid;
 	unsigned long vcore;
 	int err;
 
-	client = to_i2c_client(dev);
-	data = atxp1_update_device(dev);
-
 	err = kstrtoul(buf, 10, &vcore);
 	if (err)
 		return err;
@@ -184,14 +178,11 @@ static ssize_t atxp1_storegpio1(struct device *dev,
 				struct device_attribute *attr, const char *buf,
 				size_t count)
 {
-	struct atxp1_data *data;
-	struct i2c_client *client;
+	struct atxp1_data *data = atxp1_update_device(dev);
+	struct i2c_client *client = data->client;
 	unsigned long value;
 	int err;
 
-	client = to_i2c_client(dev);
-	data = atxp1_update_device(dev);
-
 	err = kstrtoul(buf, 16, &value);
 	if (err)
 		return err;
@@ -234,7 +225,7 @@ static ssize_t atxp1_storegpio2(struct device *dev,
 				const char *buf, size_t count)
 {
 	struct atxp1_data *data = atxp1_update_device(dev);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client = data->client;
 	unsigned long value;
 	int err;
 
@@ -260,17 +251,13 @@ static ssize_t atxp1_storegpio2(struct device *dev,
  */
 static DEVICE_ATTR(gpio2, S_IRUGO | S_IWUSR, atxp1_showgpio2, atxp1_storegpio2);
 
-static struct attribute *atxp1_attributes[] = {
+static struct attribute *atxp1_attrs[] = {
 	&dev_attr_gpio1.attr,
 	&dev_attr_gpio2.attr,
 	&dev_attr_cpu0_vid.attr,
 	NULL
 };
-
-static const struct attribute_group atxp1_group = {
-	.attrs = atxp1_attributes,
-};
-
+ATTRIBUTE_GROUPS(atxp1);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int atxp1_detect(struct i2c_client *new_client,
@@ -314,50 +301,30 @@ static int atxp1_detect(struct i2c_client *new_client,
 	return 0;
 }
 
-static int atxp1_probe(struct i2c_client *new_client,
+static int atxp1_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct atxp1_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&new_client->dev, sizeof(struct atxp1_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct atxp1_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	/* Get VRM */
 	data->vrm = vid_which_vrm();
 
-	i2c_set_clientdata(new_client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &atxp1_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&new_client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	dev_info(&new_client->dev, "Using VRM: %d.%d\n",
-			 data->vrm / 10, data->vrm % 10);
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&new_client->dev.kobj, &atxp1_group);
-	return err;
-};
-
-static int atxp1_remove(struct i2c_client *client)
-{
-	struct atxp1_data *data = i2c_get_clientdata(client);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   atxp1_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &atxp1_group);
+	dev_info(dev, "Using VRM: %d.%d\n", data->vrm / 10, data->vrm % 10);
 
 	return 0;
 };
@@ -374,7 +341,6 @@ static struct i2c_driver atxp1_driver = {
 		.name	= "atxp1",
 	},
 	.probe		= atxp1_probe,
-	.remove		= atxp1_remove,
 	.id_table	= atxp1_id,
 	.detect		= atxp1_detect,
 	.address_list	= normal_i2c,

drivers/hwmon/ds620.c

@@ -67,7 +67,7 @@ static const u8 DS620_REG_TEMP[3] = {
 
 /* Each client has this additional data */
 struct ds620_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -106,8 +106,8 @@ static void ds620_init_client(struct i2c_client *client)
 
 static struct ds620_data *ds620_update_client(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds620_data *data = i2c_get_clientdata(client);
+	struct ds620_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct ds620_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -158,8 +158,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 	long val;
 
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds620_data *data = i2c_get_clientdata(client);
+	struct ds620_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	res = kstrtol(buf, 10, &val);
 
@@ -181,13 +181,15 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
 	struct ds620_data *data = ds620_update_client(dev);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client;
 	u16 conf, new_conf;
 	int res;
 
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
+	client = data->client;
+
 	/* reset alarms if necessary */
 	res = i2c_smbus_read_word_swapped(client, DS620_REG_CONF);
 	if (res < 0)
@@ -213,7 +215,7 @@ static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL,
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
 			  DS620_REG_CONFIG_THF);
 
-static struct attribute *ds620_attributes[] = {
+static struct attribute *ds620_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -222,55 +224,28 @@ static struct attribute *ds620_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group ds620_group = {
-	.attrs = ds620_attributes,
-};
+ATTRIBUTE_GROUPS(ds620);
 
 static int ds620_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct ds620_data *data;
-	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct ds620_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct ds620_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the DS620 chip */
 	ds620_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &ds620_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	dev_info(&client->dev, "temperature sensor found\n");
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &ds620_group);
-	return err;
-}
-
-static int ds620_remove(struct i2c_client *client)
-{
-	struct ds620_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ds620_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, ds620_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ds620_id[] = {
@@ -287,7 +262,6 @@ static struct i2c_driver ds620_driver = {
 		   .name = "ds620",
 	},
 	.probe = ds620_probe,
-	.remove = ds620_remove,
 	.id_table = ds620_id,
 };
 

drivers/hwmon/emc1403.c

@@ -416,7 +416,7 @@ static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg)
 	}
 }
 
-static struct regmap_config emc1403_regmap_config = {
+static const struct regmap_config emc1403_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.cache_type = REGCACHE_RBTREE,

drivers/hwmon/emc2103.c

@@ -66,7 +66,8 @@ struct temperature {
 };
 
 struct emc2103_data {
-	struct device		*hwmon_dev;
+	struct i2c_client	*client;
+	const struct		attribute_group *groups[4];
 	struct mutex		update_lock;
 	bool			valid;		/* registers are valid */
 	bool			fan_rpm_control;
@@ -146,8 +147,8 @@ static void read_fan_config_from_i2c(struct i2c_client *client)
 
 static struct emc2103_data *emc2103_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc2103_data *data = i2c_get_clientdata(client);
+	struct emc2103_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->update_lock);
 
@@ -242,8 +243,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *da,
 			    const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(da)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc2103_data *data = i2c_get_clientdata(client);
+	struct emc2103_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 
 	int result = kstrtol(buf, 10, &val);
@@ -264,8 +265,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *da,
 			    const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(da)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc2103_data *data = i2c_get_clientdata(client);
+	struct emc2103_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 
 	int result = kstrtol(buf, 10, &val);
@@ -310,7 +311,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
 			   const char *buf, size_t count)
 {
 	struct emc2103_data *data = emc2103_update_device(dev);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client = data->client;
 	int new_range_bits, old_div = 8 / data->fan_multiplier;
 	long new_div;
 
@@ -385,7 +386,7 @@ static ssize_t set_fan_target(struct device *dev, struct device_attribute *da,
 			      const char *buf, size_t count)
 {
 	struct emc2103_data *data = emc2103_update_device(dev);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client = data->client;
 	unsigned long rpm_target;
 
 	int result = kstrtoul(buf, 10, &rpm_target);
@@ -428,8 +429,8 @@ show_pwm_enable(struct device *dev, struct device_attribute *da, char *buf)
 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da,
 			      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc2103_data *data = i2c_get_clientdata(client);
+	struct emc2103_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long new_value;
 	u8 conf_reg;
 
@@ -580,7 +581,8 @@ static int
 emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	struct emc2103_data *data;
-	int status;
+	struct device *hwmon_dev;
+	int status, idx = 0;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
@@ -591,6 +593,7 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* 2103-2 and 2103-4 have 3 external diodes, 2103-1 has 1 */
@@ -624,60 +627,21 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		}
 	}
 
-	/* Register sysfs hooks */
-	status = sysfs_create_group(&client->dev.kobj, &emc2103_group);
-	if (status)
-		return status;
-
-	if (data->temp_count >= 3) {
-		status = sysfs_create_group(&client->dev.kobj,
-			&emc2103_temp3_group);
-		if (status)
-			goto exit_remove;
-	}
-
-	if (data->temp_count == 4) {
-		status = sysfs_create_group(&client->dev.kobj,
-			&emc2103_temp4_group);
-		if (status)
-			goto exit_remove_temp3;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		status = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_temp4;
-	}
-
-	dev_info(&client->dev, "%s: sensor '%s'\n",
-		 dev_name(data->hwmon_dev), client->name);
-
-	return 0;
-
-exit_remove_temp4:
-	if (data->temp_count == 4)
-		sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group);
-exit_remove_temp3:
+	/* sysfs hooks */
+	data->groups[idx++] = &emc2103_group;
 	if (data->temp_count >= 3)
-		sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group);
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &emc2103_group);
-	return status;
-}
-
-static int emc2103_remove(struct i2c_client *client)
-{
-	struct emc2103_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-
+		data->groups[idx++] = &emc2103_temp3_group;
 	if (data->temp_count == 4)
-		sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group);
+		data->groups[idx++] = &emc2103_temp4_group;
 
-	if (data->temp_count >= 3)
-		sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name, data,
+							   data->groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	sysfs_remove_group(&client->dev.kobj, &emc2103_group);
+	dev_info(&client->dev, "%s: sensor '%s'\n",
+		 dev_name(hwmon_dev), client->name);
 
 	return 0;
 }
@@ -717,7 +681,6 @@ static struct i2c_driver emc2103_driver = {
 		.name	= "emc2103",
 	},
 	.probe		= emc2103_probe,
-	.remove		= emc2103_remove,
 	.id_table	= emc2103_ids,
 	.detect		= emc2103_detect,
 	.address_list	= normal_i2c,

drivers/hwmon/emc6w201.c

@@ -56,7 +56,7 @@ enum subfeature { input, min, max };
  */
 
 struct emc6w201_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -134,8 +134,8 @@ static int emc6w201_write8(struct i2c_client *client, u8 reg, u8 val)
 
 static struct emc6w201_data *emc6w201_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc6w201_data *data = i2c_get_clientdata(client);
+	struct emc6w201_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr;
 
 	mutex_lock(&data->update_lock);
@@ -203,8 +203,8 @@ static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
 static ssize_t set_in(struct device *dev, struct device_attribute *devattr,
 		      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc6w201_data *data = i2c_get_clientdata(client);
+	struct emc6w201_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int sf = to_sensor_dev_attr_2(devattr)->index;
 	int nr = to_sensor_dev_attr_2(devattr)->nr;
 	int err;
@@ -240,8 +240,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
 static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc6w201_data *data = i2c_get_clientdata(client);
+	struct emc6w201_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int sf = to_sensor_dev_attr_2(devattr)->index;
 	int nr = to_sensor_dev_attr_2(devattr)->nr;
 	int err;
@@ -283,8 +283,8 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
 static ssize_t set_fan(struct device *dev, struct device_attribute *devattr,
 		       const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct emc6w201_data *data = i2c_get_clientdata(client);
+	struct emc6w201_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int sf = to_sensor_dev_attr_2(devattr)->index;
 	int nr = to_sensor_dev_attr_2(devattr)->nr;
 	int err;
@@ -388,7 +388,7 @@ static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, input);
 static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
 			    4, min);
 
-static struct attribute *emc6w201_attributes[] = {
+static struct attribute *emc6w201_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in0_min.dev_attr.attr,
 	&sensor_dev_attr_in0_max.dev_attr.attr,
@@ -440,9 +440,7 @@ static struct attribute *emc6w201_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group emc6w201_group = {
-	.attrs = emc6w201_attributes,
-};
+ATTRIBUTE_GROUPS(emc6w201);
 
 /*
  * Driver interface
@@ -488,44 +486,21 @@ static int emc6w201_detect(struct i2c_client *client,
 static int emc6w201_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct emc6w201_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct emc6w201_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct emc6w201_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
-	/* Create sysfs attribute */
-	err = sysfs_create_group(&client->dev.kobj, &emc6w201_group);
-	if (err)
-		return err;
-
-	/* Expose as a hwmon device */
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
- exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &emc6w201_group);
-	return err;
-}
-
-static int emc6w201_remove(struct i2c_client *client)
-{
-	struct emc6w201_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &emc6w201_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   emc6w201_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id emc6w201_id[] = {
@@ -540,7 +515,6 @@ static struct i2c_driver emc6w201_driver = {
 		.name	= "emc6w201",
 	},
 	.probe		= emc6w201_probe,
-	.remove		= emc6w201_remove,
 	.id_table	= emc6w201_id,
 	.detect		= emc6w201_detect,
 	.address_list	= normal_i2c,

drivers/hwmon/fam15h_power.c

@@ -31,9 +31,6 @@ MODULE_DESCRIPTION("AMD Family 15h CPU processor power monitor");
 MODULE_AUTHOR("Andreas Herrmann <herrmann.der.user@googlemail.com>");
 MODULE_LICENSE("GPL");
 
-/* Family 16h Northbridge's function 4 PCI ID */
-#define PCI_DEVICE_ID_AMD_16H_NB_F4	0x1534
-
 /* D18F3 */
 #define REG_NORTHBRIDGE_CAP		0xe8
 
@@ -45,7 +42,7 @@ MODULE_LICENSE("GPL");
 #define REG_TDP_LIMIT3			0xe8
 
 struct fam15h_power_data {
-	struct device *hwmon_dev;
+	struct pci_dev *pdev;
 	unsigned int tdp_to_watts;
 	unsigned int base_tdp;
 	unsigned int processor_pwr_watts;
@@ -57,8 +54,8 @@ static ssize_t show_power(struct device *dev,
 	u32 val, tdp_limit, running_avg_range;
 	s32 running_avg_capture;
 	u64 curr_pwr_watts;
-	struct pci_dev *f4 = to_pci_dev(dev);
 	struct fam15h_power_data *data = dev_get_drvdata(dev);
+	struct pci_dev *f4 = data->pdev;
 
 	pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
 				  REG_TDP_RUNNING_AVERAGE, &val);
@@ -96,23 +93,13 @@ static ssize_t show_power_crit(struct device *dev,
 }
 static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL);
 
-static ssize_t show_name(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "fam15h_power\n");
-}
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 static struct attribute *fam15h_power_attrs[] = {
 	&dev_attr_power1_input.attr,
 	&dev_attr_power1_crit.attr,
-	&dev_attr_name.attr,
 	NULL
 };
 
-static const struct attribute_group fam15h_power_attr_group = {
-	.attrs	= fam15h_power_attrs,
-};
+ATTRIBUTE_GROUPS(fam15h_power);
 
 static bool fam15h_power_is_internal_node0(struct pci_dev *f4)
 {
@@ -202,7 +189,7 @@ static int fam15h_power_probe(struct pci_dev *pdev,
 {
 	struct fam15h_power_data *data;
 	struct device *dev = &pdev->dev;
-	int err;
+	struct device *hwmon_dev;
 
 	/*
 	 * though we ignore every other northbridge, we still have to
@@ -219,34 +206,12 @@ static int fam15h_power_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 
 	fam15h_power_init_data(pdev, data);
+	data->pdev = pdev;
 
-	dev_set_drvdata(dev, data);
-	err = sysfs_create_group(&dev->kobj, &fam15h_power_attr_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_group;
-	}
-
-	return 0;
-
-exit_remove_group:
-	sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
-	return err;
-}
-
-static void fam15h_power_remove(struct pci_dev *pdev)
-{
-	struct device *dev;
-	struct fam15h_power_data *data;
-
-	dev = &pdev->dev;
-	data = dev_get_drvdata(dev);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, "fam15h_power",
+							   data,
+							   fam15h_power_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct pci_device_id fam15h_power_id_table[] = {
@@ -260,7 +225,6 @@ static struct pci_driver fam15h_power_driver = {
 	.name = "fam15h_power",
 	.id_table = fam15h_power_id_table,
 	.probe = fam15h_power_probe,
-	.remove = fam15h_power_remove,
 	.resume = fam15h_power_resume,
 };
 

drivers/hwmon/g760a.c

@@ -24,12 +24,6 @@
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 
-static const struct i2c_device_id g760a_id[] = {
-	{ "g760a", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, g760a_id);
-
 enum g760a_regs {
 	G760A_REG_SET_CNT = 0x00,
 	G760A_REG_ACT_CNT = 0x01,
@@ -44,7 +38,6 @@ enum g760a_regs {
 
 struct g760a_data {
 	struct i2c_client *client;
-	struct device *hwmon_dev;
 	struct mutex update_lock;
 
 	/* board specific parameters */
@@ -74,20 +67,6 @@ static inline unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div)
 	return ((val == 0x00) ? 0 : ((clk*30)/(val*div)));
 }
 
-/* new-style driver model */
-static int g760a_probe(struct i2c_client *client,
-			const struct i2c_device_id *id);
-static int g760a_remove(struct i2c_client *client);
-
-static struct i2c_driver g760a_driver = {
-	.driver = {
-		.name	= "g760a",
-	},
-	.probe	  = g760a_probe,
-	.remove	  = g760a_remove,
-	.id_table = g760a_id,
-};
-
 /* read/write wrappers */
 static int g760a_read_value(struct i2c_client *client, enum g760a_regs reg)
 {
@@ -106,8 +85,8 @@ static int g760a_write_value(struct i2c_client *client, enum g760a_regs reg,
 
 static struct g760a_data *g760a_update_client(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct g760a_data *data = i2c_get_clientdata(client);
+	struct g760a_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->update_lock);
 
@@ -163,8 +142,8 @@ static ssize_t get_pwm(struct device *dev, struct device_attribute *da,
 static ssize_t set_pwm(struct device *dev, struct device_attribute *da,
 		       const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g760a_data *data = g760a_update_client(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 
 	if (kstrtoul(buf, 10, &val))
@@ -182,16 +161,14 @@ static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm);
 static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL);
 static DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL);
 
-static struct attribute *g760a_attributes[] = {
+static struct attribute *g760a_attrs[] = {
 	&dev_attr_pwm1.attr,
 	&dev_attr_fan1_input.attr,
 	&dev_attr_fan1_alarm.attr,
 	NULL
 };
 
-static const struct attribute_group g760a_group = {
-	.attrs = g760a_attributes,
-};
+ATTRIBUTE_GROUPS(g760a);
 
 /*
  * new-style driver model code
@@ -200,20 +177,17 @@ static const struct attribute_group g760a_group = {
 static int g760a_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct g760a_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	if (!i2c_check_functionality(client->adapter,
-				     I2C_FUNC_SMBUS_BYTE_DATA))
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct g760a_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct g760a_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
-
 	data->client = client;
 	mutex_init(&data->update_lock);
 
@@ -221,31 +195,25 @@ static int g760a_probe(struct i2c_client *client,
 	data->fan_div = G760A_DEFAULT_FAN_DIV;
 	data->clk = G760A_DEFAULT_CLK;
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &g760a_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto error_hwmon_device_register;
-	}
-
-	return 0;
-
-error_hwmon_device_register:
-	sysfs_remove_group(&client->dev.kobj, &g760a_group);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   g760a_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int g760a_remove(struct i2c_client *client)
-{
-	struct g760a_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &g760a_group);
-	return 0;
-}
+static const struct i2c_device_id g760a_id[] = {
+	{ "g760a", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, g760a_id);
+
+static struct i2c_driver g760a_driver = {
+	.driver = {
+		.name	= "g760a",
+	},
+	.probe	  = g760a_probe,
+	.id_table = g760a_id,
+};
 
 module_i2c_driver(g760a_driver);
 

drivers/hwmon/g762.c

@@ -128,8 +128,8 @@ enum g762_regs {
 			 G762_REG_FAN_CMD2_GEAR_MODE_1)) >> 2))
 
 struct g762_data {
-	struct i2c_client *client;
 	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct clk *clk;
 
 	/* update mutex */
@@ -206,8 +206,8 @@ static inline unsigned char cnt_from_rpm(u32 rpm, u32 clk_freq, u16 p,
 /* helper to grab and cache data, at most one time per second */
 static struct g762_data *g762_update_client(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct g762_data *data = i2c_get_clientdata(client);
+	struct g762_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ret = 0;
 
 	mutex_lock(&data->update_lock);
@@ -266,8 +266,7 @@ static struct g762_data *g762_update_client(struct device *dev)
  */
 static int do_set_clk_freq(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct g762_data *data = i2c_get_clientdata(client);
+	struct g762_data *data = dev_get_drvdata(dev);
 
 	if (val > 0xffffff)
 		return -EINVAL;
@@ -282,7 +281,6 @@ static int do_set_clk_freq(struct device *dev, unsigned long val)
 /* Set pwm mode. Accepts either 0 (PWM mode) or 1 (DC mode) */
 static int do_set_pwm_mode(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -301,7 +299,7 @@ static int do_set_pwm_mode(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					data->fan_cmd1);
 	data->valid = false;
  out:
@@ -313,7 +311,6 @@ static int do_set_pwm_mode(struct device *dev, unsigned long val)
 /* Set fan clock divisor. Accepts either 1, 2, 4 or 8. */
 static int do_set_fan_div(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -342,7 +339,7 @@ static int do_set_fan_div(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					data->fan_cmd1);
 	data->valid = false;
  out:
@@ -354,7 +351,6 @@ static int do_set_fan_div(struct device *dev, unsigned long val)
 /* Set fan gear mode. Accepts either 0, 1 or 2. */
 static int do_set_fan_gear_mode(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -379,7 +375,7 @@ static int do_set_fan_gear_mode(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD2,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD2,
 					data->fan_cmd2);
 	data->valid = false;
  out:
@@ -391,7 +387,6 @@ static int do_set_fan_gear_mode(struct device *dev, unsigned long val)
 /* Set number of fan pulses per revolution. Accepts either 2 or 4. */
 static int do_set_fan_pulses(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -410,7 +405,7 @@ static int do_set_fan_pulses(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					data->fan_cmd1);
 	data->valid = false;
  out:
@@ -422,7 +417,6 @@ static int do_set_fan_pulses(struct device *dev, unsigned long val)
 /* Set fan mode. Accepts either 1 (open-loop) or 2 (closed-loop). */
 static int do_set_pwm_enable(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -444,15 +438,15 @@ static int do_set_pwm_enable(struct device *dev, unsigned long val)
 		 * value of 254 if it is 255 when switching to open-loop.
 		 */
 		if (data->set_cnt == 0xff)
-			i2c_smbus_write_byte_data(client, G762_REG_SET_CNT,
-						  254);
+			i2c_smbus_write_byte_data(data->client,
+						  G762_REG_SET_CNT, 254);
 		break;
 	default:
 		ret = -EINVAL;
 		goto out;
 	}
 
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					data->fan_cmd1);
 	data->valid = false;
  out:
@@ -464,7 +458,6 @@ static int do_set_pwm_enable(struct device *dev, unsigned long val)
 /* Set PWM polarity. Accepts either 0 (positive duty) or 1 (negative duty) */
 static int do_set_pwm_polarity(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -483,7 +476,7 @@ static int do_set_pwm_polarity(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					data->fan_cmd1);
 	data->valid = false;
  out:
@@ -498,8 +491,8 @@ static int do_set_pwm_polarity(struct device *dev, unsigned long val)
  */
 static int do_set_pwm(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct g762_data *data = i2c_get_clientdata(client);
+	struct g762_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int ret;
 
 	if (val > 255)
@@ -519,7 +512,6 @@ static int do_set_pwm(struct device *dev, unsigned long val)
  */
 static int do_set_fan_target(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -531,7 +523,7 @@ static int do_set_fan_target(struct device *dev, unsigned long val)
 				     G762_PULSE_FROM_REG(data->fan_cmd1),
 				     G762_CLKDIV_FROM_REG(data->fan_cmd1),
 				     G762_GEARMULT_FROM_REG(data->fan_cmd2));
-	ret = i2c_smbus_write_byte_data(client, G762_REG_SET_CNT,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_SET_CNT,
 					data->set_cnt);
 	data->valid = false;
 	mutex_unlock(&data->update_lock);
@@ -542,7 +534,6 @@ static int do_set_fan_target(struct device *dev, unsigned long val)
 /* Set fan startup voltage. Accepted values are either 0, 1, 2 or 3. */
 static int do_set_fan_startv(struct device *dev, unsigned long val)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 	int ret;
 
@@ -571,7 +562,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val)
 		ret = -EINVAL;
 		goto out;
 	}
-	ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD2,
+	ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD2,
 					data->fan_cmd2);
 	data->valid = false;
  out:
@@ -658,15 +649,12 @@ static int g762_of_prop_import_one(struct i2c_client *client,
 				   int (*psetter)(struct device *dev,
 						  unsigned long val))
 {
-	const __be32 *prop;
-	int len, ret;
+	int ret;
 	u32 pval;
 
-	prop = of_get_property(client->dev.of_node, pname, &len);
-	if (!prop || len != sizeof(u32))
+	if (of_property_read_u32(client->dev.of_node, pname, &pval))
 		return 0;
 
-	pval = be32_to_cpu(prop[0]);
 	dev_dbg(&client->dev, "found %s (%d)\n", pname, pval);
 	ret = (*psetter)(&client->dev, pval);
 	if (ret)
@@ -1026,7 +1014,7 @@ static DEVICE_ATTR(fan1_pulses, S_IWUSR | S_IRUGO,
 		   get_fan_pulses, set_fan_pulses);
 
 /* Driver data */
-static struct attribute *g762_attributes[] = {
+static struct attribute *g762_attrs[] = {
 	&dev_attr_fan1_input.attr,
 	&dev_attr_fan1_alarm.attr,
 	&dev_attr_fan1_fault.attr,
@@ -1039,9 +1027,7 @@ static struct attribute *g762_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group g762_group = {
-	.attrs = g762_attributes,
-};
+ATTRIBUTE_GROUPS(g762);
 
 /*
  * Enable both fan failure detection and fan out of control protection. The
@@ -1050,7 +1036,6 @@ static const struct attribute_group g762_group = {
  */
 static inline int g762_fan_init(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct g762_data *data = g762_update_client(dev);
 
 	if (IS_ERR(data))
@@ -1060,12 +1045,13 @@ static inline int g762_fan_init(struct device *dev)
 	data->fan_cmd1 |= G762_REG_FAN_CMD1_DET_FAN_OOC;
 	data->valid = false;
 
-	return i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1,
+	return i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1,
 					 data->fan_cmd1);
 }
 
 static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct g762_data *data;
 	int ret;
 
@@ -1073,7 +1059,7 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
 				     I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct g762_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct g762_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1082,7 +1068,7 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	mutex_init(&data->update_lock);
 
 	/* Enable fan failure detection and fan out of control protection */
-	ret = g762_fan_init(&client->dev);
+	ret = g762_fan_init(dev);
 	if (ret)
 		return ret;
 
@@ -1098,22 +1084,17 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (ret)
 		goto clock_dis;
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&client->dev.kobj, &g762_group);
-	if (ret)
-		goto clock_dis;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
+	data->hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+								 client->name,
+								 data,
+								 g762_groups);
 	if (IS_ERR(data->hwmon_dev)) {
 		ret = PTR_ERR(data->hwmon_dev);
-		goto sysfs_rem;
+		goto clock_dis;
 	}
 
 	return 0;
 
- sysfs_rem:
-	sysfs_remove_group(&client->dev.kobj, &g762_group);
-
  clock_dis:
 	g762_of_clock_disable(client);
 
@@ -1125,7 +1106,6 @@ static int g762_remove(struct i2c_client *client)
 	struct g762_data *data = i2c_get_clientdata(client);
 
 	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &g762_group);
 	g762_of_clock_disable(client);
 
 	return 0;

drivers/hwmon/gl518sm.c

@@ -114,7 +114,8 @@ static inline u8 FAN_TO_REG(long rpm, int div)
 
 /* Each client has this additional data */
 struct gl518_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	enum chips type;
 
 	struct mutex update_lock;
@@ -137,33 +138,98 @@ struct gl518_data {
 	u8 beep_enable;		/* Boolean */
 };
 
-static int gl518_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id);
-static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info);
-static void gl518_init_client(struct i2c_client *client);
-static int gl518_remove(struct i2c_client *client);
-static int gl518_read_value(struct i2c_client *client, u8 reg);
-static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
-static struct gl518_data *gl518_update_device(struct device *dev);
+/*
+ * Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ * GL518 uses a high-byte first convention, which is exactly opposite to
+ * the SMBus standard.
+ */
+static int gl518_read_value(struct i2c_client *client, u8 reg)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_read_word_swapped(client, reg);
+	else
+		return i2c_smbus_read_byte_data(client, reg);
+}
 
-static const struct i2c_device_id gl518_id[] = {
-	{ "gl518sm", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, gl518_id);
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_write_word_swapped(client, reg, value);
+	else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
 
-/* This is the driver that will be inserted */
-static struct i2c_driver gl518_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "gl518sm",
-	},
-	.probe		= gl518_probe,
-	.remove		= gl518_remove,
-	.id_table	= gl518_id,
-	.detect		= gl518_detect,
-	.address_list	= normal_i2c,
-};
+static struct gl518_data *gl518_update_device(struct device *dev)
+{
+	struct gl518_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int val;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Starting gl518 update\n");
+
+		data->alarms = gl518_read_value(client, GL518_REG_INT);
+		data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+
+		val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
+		data->voltage_min[0] = val & 0xff;
+		data->voltage_max[0] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
+		data->voltage_min[1] = val & 0xff;
+		data->voltage_max[1] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
+		data->voltage_min[2] = val & 0xff;
+		data->voltage_max[2] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
+		data->voltage_min[3] = val & 0xff;
+		data->voltage_max[3] = (val >> 8) & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_COUNT);
+		data->fan_in[0] = (val >> 8) & 0xff;
+		data->fan_in[1] = val & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+		data->fan_min[0] = (val >> 8) & 0xff;
+		data->fan_min[1] = val & 0xff;
+
+		data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
+		data->temp_max =
+		    gl518_read_value(client, GL518_REG_TEMP_MAX);
+		data->temp_hyst =
+		    gl518_read_value(client, GL518_REG_TEMP_HYST);
+
+		val = gl518_read_value(client, GL518_REG_MISC);
+		data->fan_div[0] = (val >> 6) & 0x03;
+		data->fan_div[1] = (val >> 4) & 0x03;
+		data->fan_auto1  = (val >> 3) & 0x01;
+
+		data->alarms &= data->alarm_mask;
+
+		val = gl518_read_value(client, GL518_REG_CONF);
+		data->beep_enable = (val >> 2) & 1;
+
+		if (data->type != gl518sm_r00) {
+			data->voltage_in[0] =
+			    gl518_read_value(client, GL518_REG_VDD);
+			data->voltage_in[1] =
+			    gl518_read_value(client, GL518_REG_VIN1);
+			data->voltage_in[2] =
+			    gl518_read_value(client, GL518_REG_VIN2);
+		}
+		data->voltage_in[3] =
+		    gl518_read_value(client, GL518_REG_VIN3);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 /*
  * Sysfs stuff
@@ -228,8 +294,8 @@ static ssize_t set_##suffix(struct device *dev,				\
 			    struct device_attribute *attr,		\
 			    const char *buf, size_t count)		\
 {									\
-	struct i2c_client *client = to_i2c_client(dev);			\
-	struct gl518_data *data = i2c_get_clientdata(client);		\
+	struct gl518_data *data = dev_get_drvdata(dev);			\
+	struct i2c_client *client = data->client;			\
 	long val;							\
 	int err = kstrtol(buf, 10, &val);				\
 	if (err)							\
@@ -247,8 +313,8 @@ static ssize_t set_##suffix(struct device *dev,				\
 			    struct device_attribute *attr,		\
 			    const char *buf, size_t count)		\
 {									\
-	struct i2c_client *client = to_i2c_client(dev);			\
-	struct gl518_data *data = i2c_get_clientdata(client);		\
+	struct gl518_data *data = dev_get_drvdata(dev);			\
+	struct i2c_client *client = data->client;			\
 	int regvalue;							\
 	unsigned long val;						\
 	int err = kstrtoul(buf, 10, &val);				\
@@ -286,8 +352,8 @@ set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl518_data *data = i2c_get_clientdata(client);
+	struct gl518_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	int regvalue;
 	unsigned long val;
@@ -319,8 +385,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl518_data *data = i2c_get_clientdata(client);
+	struct gl518_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = to_sensor_dev_attr(attr)->index;
 	int regvalue;
 	unsigned long val;
@@ -420,8 +486,8 @@ static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
 static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl518_data *data = i2c_get_clientdata(client);
+	struct gl518_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	unsigned long bit;
 	int err;
@@ -539,52 +605,6 @@ static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return 0;
 }
 
-static int gl518_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
-{
-	struct gl518_data *data;
-	int err, revision;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct gl518_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	revision = gl518_read_value(client, GL518_REG_REVISION);
-	data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
-	mutex_init(&data->update_lock);
-
-	/* Initialize the GL518SM chip */
-	data->alarm_mask = 0xff;
-	gl518_init_client(client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &gl518_group);
-	if (err)
-		return err;
-	if (data->type == gl518sm_r80) {
-		err = sysfs_create_group(&client->dev.kobj, &gl518_group_r80);
-		if (err)
-			goto exit_remove_files;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &gl518_group);
-	if (data->type == gl518sm_r80)
-		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
-	return err;
-}
-
-
 /*
  * Called when we have found a new GL518SM.
  * Note that we preserve D4:NoFan2 and D2:beep_enable.
@@ -605,110 +625,53 @@ static void gl518_init_client(struct i2c_client *client)
 	gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
 }
 
-static int gl518_remove(struct i2c_client *client)
-{
-	struct gl518_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &gl518_group);
-	if (data->type == gl518sm_r80)
-		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
-
-	return 0;
-}
-
-/*
- * Registers 0x07 to 0x0c are word-sized, others are byte-sized
- * GL518 uses a high-byte first convention, which is exactly opposite to
- * the SMBus standard.
- */
-static int gl518_read_value(struct i2c_client *client, u8 reg)
-{
-	if ((reg >= 0x07) && (reg <= 0x0c))
-		return i2c_smbus_read_word_swapped(client, reg);
-	else
-		return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
-{
-	if ((reg >= 0x07) && (reg <= 0x0c))
-		return i2c_smbus_write_word_swapped(client, reg, value);
-	else
-		return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-static struct gl518_data *gl518_update_device(struct device *dev)
+static int gl518_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl518_data *data = i2c_get_clientdata(client);
-	int val;
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	    || !data->valid) {
-		dev_dbg(&client->dev, "Starting gl518 update\n");
-
-		data->alarms = gl518_read_value(client, GL518_REG_INT);
-		data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
-
-		val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
-		data->voltage_min[0] = val & 0xff;
-		data->voltage_max[0] = (val >> 8) & 0xff;
-		val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
-		data->voltage_min[1] = val & 0xff;
-		data->voltage_max[1] = (val >> 8) & 0xff;
-		val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
-		data->voltage_min[2] = val & 0xff;
-		data->voltage_max[2] = (val >> 8) & 0xff;
-		val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
-		data->voltage_min[3] = val & 0xff;
-		data->voltage_max[3] = (val >> 8) & 0xff;
-
-		val = gl518_read_value(client, GL518_REG_FAN_COUNT);
-		data->fan_in[0] = (val >> 8) & 0xff;
-		data->fan_in[1] = val & 0xff;
-
-		val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
-		data->fan_min[0] = (val >> 8) & 0xff;
-		data->fan_min[1] = val & 0xff;
-
-		data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
-		data->temp_max =
-		    gl518_read_value(client, GL518_REG_TEMP_MAX);
-		data->temp_hyst =
-		    gl518_read_value(client, GL518_REG_TEMP_HYST);
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct gl518_data *data;
+	int revision;
 
-		val = gl518_read_value(client, GL518_REG_MISC);
-		data->fan_div[0] = (val >> 6) & 0x03;
-		data->fan_div[1] = (val >> 4) & 0x03;
-		data->fan_auto1  = (val >> 3) & 0x01;
+	data = devm_kzalloc(dev, sizeof(struct gl518_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-		data->alarms &= data->alarm_mask;
+	data->client = client;
+	revision = gl518_read_value(client, GL518_REG_REVISION);
+	data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
+	mutex_init(&data->update_lock);
 
-		val = gl518_read_value(client, GL518_REG_CONF);
-		data->beep_enable = (val >> 2) & 1;
+	/* Initialize the GL518SM chip */
+	data->alarm_mask = 0xff;
+	gl518_init_client(client);
 
-		if (data->type != gl518sm_r00) {
-			data->voltage_in[0] =
-			    gl518_read_value(client, GL518_REG_VDD);
-			data->voltage_in[1] =
-			    gl518_read_value(client, GL518_REG_VIN1);
-			data->voltage_in[2] =
-			    gl518_read_value(client, GL518_REG_VIN2);
-		}
-		data->voltage_in[3] =
-		    gl518_read_value(client, GL518_REG_VIN3);
+	/* sysfs hooks */
+	data->groups[0] = &gl518_group;
+	if (data->type == gl518sm_r80)
+		data->groups[1] = &gl518_group_r80;
 
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id gl518_id[] = {
+	{ "gl518sm", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl518_id);
 
-	return data;
-}
+static struct i2c_driver gl518_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "gl518sm",
+	},
+	.probe		= gl518_probe,
+	.id_table	= gl518_id,
+	.detect		= gl518_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(gl518_driver);
 

drivers/hwmon/gl520sm.c

@@ -73,41 +73,10 @@ static const u8 GL520_REG_TEMP_MAX_HYST[]	= { 0x06, 0x18 };
 #define GL520_REG_BEEP_MASK		0x10
 #define GL520_REG_BEEP_ENABLE		GL520_REG_CONF
 
-/*
- * Function declarations
- */
-
-static int gl520_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id);
-static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info);
-static void gl520_init_client(struct i2c_client *client);
-static int gl520_remove(struct i2c_client *client);
-static int gl520_read_value(struct i2c_client *client, u8 reg);
-static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value);
-static struct gl520_data *gl520_update_device(struct device *dev);
-
-/* Driver data */
-static const struct i2c_device_id gl520_id[] = {
-	{ "gl520sm", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, gl520_id);
-
-static struct i2c_driver gl520_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "gl520sm",
-	},
-	.probe		= gl520_probe,
-	.remove		= gl520_remove,
-	.id_table	= gl520_id,
-	.detect		= gl520_detect,
-	.address_list	= normal_i2c,
-};
-
 /* Client data */
 struct gl520_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex update_lock;
 	char valid;		/* zero until the following fields are valid */
 	unsigned long last_updated;	/* in jiffies */
@@ -131,6 +100,102 @@ struct gl520_data {
 	u8 two_temps;
 };
 
+/*
+ * Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ * GL520 uses a high-byte first convention
+ */
+static int gl520_read_value(struct i2c_client *client, u8 reg)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_read_word_swapped(client, reg);
+	else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_write_word_swapped(client, reg, value);
+	else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static struct gl520_data *gl520_update_device(struct device *dev)
+{
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int val, i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting gl520sm update\n");
+
+		data->alarms = gl520_read_value(client, GL520_REG_ALARMS);
+		data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+		data->vid = gl520_read_value(client,
+					     GL520_REG_VID_INPUT) & 0x1f;
+
+		for (i = 0; i < 4; i++) {
+			data->in_input[i] = gl520_read_value(client,
+							GL520_REG_IN_INPUT[i]);
+			val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]);
+			data->in_min[i] = val & 0xff;
+			data->in_max[i] = (val >> 8) & 0xff;
+		}
+
+		val = gl520_read_value(client, GL520_REG_FAN_INPUT);
+		data->fan_input[0] = (val >> 8) & 0xff;
+		data->fan_input[1] = val & 0xff;
+
+		val = gl520_read_value(client, GL520_REG_FAN_MIN);
+		data->fan_min[0] = (val >> 8) & 0xff;
+		data->fan_min[1] = val & 0xff;
+
+		data->temp_input[0] = gl520_read_value(client,
+						GL520_REG_TEMP_INPUT[0]);
+		data->temp_max[0] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX[0]);
+		data->temp_max_hyst[0] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX_HYST[0]);
+
+		val = gl520_read_value(client, GL520_REG_FAN_DIV);
+		data->fan_div[0] = (val >> 6) & 0x03;
+		data->fan_div[1] = (val >> 4) & 0x03;
+		data->fan_off = (val >> 2) & 0x01;
+
+		data->alarms &= data->alarm_mask;
+
+		val = gl520_read_value(client, GL520_REG_CONF);
+		data->beep_enable = !((val >> 2) & 1);
+
+		/* Temp1 and Vin4 are the same input */
+		if (data->two_temps) {
+			data->temp_input[1] = gl520_read_value(client,
+						GL520_REG_TEMP_INPUT[1]);
+			data->temp_max[1] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX[1]);
+			data->temp_max_hyst[1] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX_HYST[1]);
+		} else {
+			data->in_input[4] = gl520_read_value(client,
+						GL520_REG_IN_INPUT[4]);
+			data->in_min[4] = gl520_read_value(client,
+						GL520_REG_IN_MIN[4]);
+			data->in_max[4] = gl520_read_value(client,
+						GL520_REG_IN_MAX[4]);
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /*
  * Sysfs stuff
  */
@@ -191,8 +256,8 @@ static ssize_t get_in_max(struct device *dev, struct device_attribute *attr,
 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	u8 r;
 	long v;
@@ -225,8 +290,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	u8 r;
 	long v;
@@ -326,8 +391,8 @@ static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr,
 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	u8 r;
 	unsigned long v;
@@ -365,8 +430,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	u8 r;
 	unsigned long v;
@@ -414,8 +479,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 r;
 	unsigned long v;
 	int err;
@@ -482,8 +547,8 @@ static ssize_t get_temp_max_hyst(struct device *dev,
 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	long v;
 	int err;
@@ -502,8 +567,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute
 				 *attr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int n = to_sensor_dev_attr(attr)->index;
 	long v;
 	int err;
@@ -555,8 +620,8 @@ static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr,
 static ssize_t set_beep_enable(struct device *dev, struct device_attribute
 			       *attr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 r;
 	unsigned long v;
 	int err;
@@ -579,8 +644,8 @@ static ssize_t set_beep_enable(struct device *dev, struct device_attribute
 static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long r;
 	int err;
 
@@ -633,8 +698,8 @@ static ssize_t get_beep(struct device *dev, struct device_attribute *attr,
 static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct gl520_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	unsigned long bit;
 
@@ -772,52 +837,6 @@ static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return 0;
 }
 
-static int gl520_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
-{
-	struct gl520_data *data;
-	int err;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct gl520_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	mutex_init(&data->update_lock);
-
-	/* Initialize the GL520SM chip */
-	gl520_init_client(client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &gl520_group);
-	if (err)
-		return err;
-
-	if (data->two_temps)
-		err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2);
-	else
-		err = sysfs_create_group(&client->dev.kobj, &gl520_group_in4);
-
-	if (err)
-		goto exit_remove_files;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &gl520_group);
-	sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
-	sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
-	return err;
-}
-
-
 /* Called when we have found a new GL520SM. */
 static void gl520_init_client(struct i2c_client *client)
 {
@@ -856,115 +875,53 @@ static void gl520_init_client(struct i2c_client *client)
 	gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
 }
 
-static int gl520_remove(struct i2c_client *client)
+static int gl520_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
 {
-	struct gl520_data *data = i2c_get_clientdata(client);
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct gl520_data *data;
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &gl520_group);
-	sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
-	sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
+	data = devm_kzalloc(dev, sizeof(struct gl520_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	return 0;
-}
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+	data->client = client;
 
+	/* Initialize the GL520SM chip */
+	gl520_init_client(client);
 
-/*
- * Registers 0x07 to 0x0c are word-sized, others are byte-sized
- * GL520 uses a high-byte first convention
- */
-static int gl520_read_value(struct i2c_client *client, u8 reg)
-{
-	if ((reg >= 0x07) && (reg <= 0x0c))
-		return i2c_smbus_read_word_swapped(client, reg);
-	else
-		return i2c_smbus_read_byte_data(client, reg);
-}
+	/* sysfs hooks */
+	data->groups[0] = &gl520_group;
 
-static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
-{
-	if ((reg >= 0x07) && (reg <= 0x0c))
-		return i2c_smbus_write_word_swapped(client, reg, value);
+	if (data->two_temps)
+		data->groups[1] = &gl520_group_temp2;
 	else
-		return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-
-static struct gl520_data *gl520_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct gl520_data *data = i2c_get_clientdata(client);
-	int val, i;
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
-
-		dev_dbg(&client->dev, "Starting gl520sm update\n");
-
-		data->alarms = gl520_read_value(client, GL520_REG_ALARMS);
-		data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
-		data->vid = gl520_read_value(client,
-					     GL520_REG_VID_INPUT) & 0x1f;
-
-		for (i = 0; i < 4; i++) {
-			data->in_input[i] = gl520_read_value(client,
-							GL520_REG_IN_INPUT[i]);
-			val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]);
-			data->in_min[i] = val & 0xff;
-			data->in_max[i] = (val >> 8) & 0xff;
-		}
-
-		val = gl520_read_value(client, GL520_REG_FAN_INPUT);
-		data->fan_input[0] = (val >> 8) & 0xff;
-		data->fan_input[1] = val & 0xff;
+		data->groups[1] = &gl520_group_in4;
 
-		val = gl520_read_value(client, GL520_REG_FAN_MIN);
-		data->fan_min[0] = (val >> 8) & 0xff;
-		data->fan_min[1] = val & 0xff;
-
-		data->temp_input[0] = gl520_read_value(client,
-						GL520_REG_TEMP_INPUT[0]);
-		data->temp_max[0] = gl520_read_value(client,
-						GL520_REG_TEMP_MAX[0]);
-		data->temp_max_hyst[0] = gl520_read_value(client,
-						GL520_REG_TEMP_MAX_HYST[0]);
-
-		val = gl520_read_value(client, GL520_REG_FAN_DIV);
-		data->fan_div[0] = (val >> 6) & 0x03;
-		data->fan_div[1] = (val >> 4) & 0x03;
-		data->fan_off = (val >> 2) & 0x01;
-
-		data->alarms &= data->alarm_mask;
-
-		val = gl520_read_value(client, GL520_REG_CONF);
-		data->beep_enable = !((val >> 2) & 1);
-
-		/* Temp1 and Vin4 are the same input */
-		if (data->two_temps) {
-			data->temp_input[1] = gl520_read_value(client,
-						GL520_REG_TEMP_INPUT[1]);
-			data->temp_max[1] = gl520_read_value(client,
-						GL520_REG_TEMP_MAX[1]);
-			data->temp_max_hyst[1] = gl520_read_value(client,
-						GL520_REG_TEMP_MAX_HYST[1]);
-		} else {
-			data->in_input[4] = gl520_read_value(client,
-						GL520_REG_IN_INPUT[4]);
-			data->in_min[4] = gl520_read_value(client,
-						GL520_REG_IN_MIN[4]);
-			data->in_max[4] = gl520_read_value(client,
-						GL520_REG_IN_MAX[4]);
-		}
-
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id gl520_id[] = {
+	{ "gl520sm", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl520_id);
 
-	return data;
-}
+static struct i2c_driver gl520_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "gl520sm",
+	},
+	.probe		= gl520_probe,
+	.id_table	= gl520_id,
+	.detect		= gl520_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(gl520_driver);
 

drivers/hwmon/gpio-fan.c

@@ -173,7 +173,7 @@ static int get_fan_speed_index(struct gpio_fan_data *fan_data)
 	return -ENODEV;
 }
 
-static int rpm_to_speed_index(struct gpio_fan_data *fan_data, int rpm)
+static int rpm_to_speed_index(struct gpio_fan_data *fan_data, unsigned long rpm)
 {
 	struct gpio_fan_speed *speed = fan_data->speed;
 	int i;
@@ -537,9 +537,10 @@ static int gpio_fan_probe(struct platform_device *pdev)
 	}
 
 	/* Make this driver part of hwmon class. */
-	fan_data->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
-						"gpio_fan", fan_data,
-						gpio_fan_groups);
+	fan_data->hwmon_dev =
+		devm_hwmon_device_register_with_groups(&pdev->dev,
+						       "gpio_fan", fan_data,
+						       gpio_fan_groups);
 	if (IS_ERR(fan_data->hwmon_dev))
 		return PTR_ERR(fan_data->hwmon_dev);
 
@@ -548,15 +549,6 @@ static int gpio_fan_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int gpio_fan_remove(struct platform_device *pdev)
-{
-	struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
-
-	hwmon_device_unregister(fan_data->hwmon_dev);
-
-	return 0;
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int gpio_fan_suspend(struct device *dev)
 {
@@ -588,7 +580,6 @@ static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume);
 
 static struct platform_driver gpio_fan_driver = {
 	.probe		= gpio_fan_probe,
-	.remove		= gpio_fan_remove,
 	.driver	= {
 		.name	= "gpio-fan",
 		.pm	= GPIO_FAN_PM,

drivers/hwmon/hih6130.c

@@ -46,7 +46,7 @@
  * @write_length: length for I2C measurement request
  */
 struct hih6130 {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex lock;
 	bool valid;
 	unsigned long last_update;
@@ -62,7 +62,6 @@ struct hih6130 {
  */
 static inline int hih6130_temp_ticks_to_millicelsius(int ticks)
 {
-
 	ticks = ticks >> 2;
 	/*
 	 * from data sheet section 5.0
@@ -78,7 +77,6 @@ static inline int hih6130_temp_ticks_to_millicelsius(int ticks)
  */
 static inline int hih6130_rh_ticks_to_per_cent_mille(int ticks)
 {
-
 	ticks &= ~0xC000; /* clear status bits */
 	/*
 	 * from data sheet section 4.0
@@ -89,15 +87,16 @@ static inline int hih6130_rh_ticks_to_per_cent_mille(int ticks)
 
 /**
  * hih6130_update_measurements() - get updated measurements from device
- * @client: I2C client device
+ * @dev: device
  *
  * Returns 0 on success, else negative errno.
  */
-static int hih6130_update_measurements(struct i2c_client *client)
+static int hih6130_update_measurements(struct device *dev)
 {
+	struct hih6130 *hih6130 = dev_get_drvdata(dev);
+	struct i2c_client *client = hih6130->client;
 	int ret = 0;
 	int t;
-	struct hih6130 *hih6130 = i2c_get_clientdata(client);
 	unsigned char tmp[4];
 	struct i2c_msg msgs[1] = {
 		{
@@ -176,9 +175,10 @@ static ssize_t hih6130_show_temperature(struct device *dev,
 					struct device_attribute *attr,
 					char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct hih6130 *hih6130 = i2c_get_clientdata(client);
-	int ret = hih6130_update_measurements(client);
+	struct hih6130 *hih6130 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = hih6130_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", hih6130->temperature);
@@ -196,9 +196,10 @@ static ssize_t hih6130_show_temperature(struct device *dev,
 static ssize_t hih6130_show_humidity(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct hih6130 *hih6130 = i2c_get_clientdata(client);
-	int ret = hih6130_update_measurements(client);
+	struct hih6130 *hih6130 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = hih6130_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", hih6130->humidity);
@@ -210,79 +211,37 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, hih6130_show_temperature,
 static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, hih6130_show_humidity,
 	NULL, 0);
 
-static struct attribute *hih6130_attributes[] = {
+static struct attribute *hih6130_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_humidity1_input.dev_attr.attr,
 	NULL
 };
 
-static const struct attribute_group hih6130_attr_group = {
-	.attrs = hih6130_attributes,
-};
+ATTRIBUTE_GROUPS(hih6130);
 
-/**
- * hih6130_probe() - probe device
- * @client: I2C client device
- * @id: device ID
- *
- * Called by the I2C core when an entry in the ID table matches a
- * device's name.
- * Returns 0 on success.
- */
 static int hih6130_probe(struct i2c_client *client,
 				   const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct hih6130 *hih6130;
-	int err;
+	struct device *hwmon_dev;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		dev_err(&client->dev, "adapter does not support true I2C\n");
 		return -ENODEV;
 	}
 
-	hih6130 = devm_kzalloc(&client->dev, sizeof(*hih6130), GFP_KERNEL);
+	hih6130 = devm_kzalloc(dev, sizeof(*hih6130), GFP_KERNEL);
 	if (!hih6130)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, hih6130);
-
+	hih6130->client = client;
 	mutex_init(&hih6130->lock);
 
-	err = sysfs_create_group(&client->dev.kobj, &hih6130_attr_group);
-	if (err) {
-		dev_dbg(&client->dev, "could not create sysfs files\n");
-		return err;
-	}
-
-	hih6130->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(hih6130->hwmon_dev)) {
-		dev_dbg(&client->dev, "unable to register hwmon device\n");
-		err = PTR_ERR(hih6130->hwmon_dev);
-		goto fail_remove_sysfs;
-	}
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_QUICK))
-		hih6130->write_length = 1;
-
-	return 0;
-
-fail_remove_sysfs:
-	sysfs_remove_group(&client->dev.kobj, &hih6130_attr_group);
-	return err;
-}
-
-/**
- * hih6130_remove() - remove device
- * @client: I2C client device
- */
-static int hih6130_remove(struct i2c_client *client)
-{
-	struct hih6130 *hih6130 = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(hih6130->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &hih6130_attr_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   hih6130,
+							   hih6130_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 /* Device ID table */
@@ -295,7 +254,6 @@ MODULE_DEVICE_TABLE(i2c, hih6130_id);
 static struct i2c_driver hih6130_driver = {
 	.driver.name = "hih6130",
 	.probe       = hih6130_probe,
-	.remove      = hih6130_remove,
 	.id_table    = hih6130_id,
 };
 

drivers/hwmon/htu21.c

@@ -31,7 +31,7 @@
 #define HTU21_RH_MEASUREMENT_HM	0xE5
 
 struct htu21 {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex lock;
 	bool valid;
 	unsigned long last_update;
@@ -59,10 +59,11 @@ static inline int htu21_rh_ticks_to_per_cent_mille(int ticks)
 	return ((15625 * ticks) >> 13) - 6000;
 }
 
-static int htu21_update_measurements(struct i2c_client *client)
+static int htu21_update_measurements(struct device *dev)
 {
+	struct htu21 *htu21 = dev_get_drvdata(dev);
+	struct i2c_client *client = htu21->client;
 	int ret = 0;
-	struct htu21 *htu21 = i2c_get_clientdata(client);
 
 	mutex_lock(&htu21->lock);
 
@@ -90,9 +91,10 @@ out:
 static ssize_t htu21_show_temperature(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct htu21 *htu21 = i2c_get_clientdata(client);
-	int ret = htu21_update_measurements(client);
+	struct htu21 *htu21 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = htu21_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", htu21->temperature);
@@ -101,9 +103,10 @@ static ssize_t htu21_show_temperature(struct device *dev,
 static ssize_t htu21_show_humidity(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct htu21 *htu21 = i2c_get_clientdata(client);
-	int ret = htu21_update_measurements(client);
+	struct htu21 *htu21 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = htu21_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", htu21->humidity);
@@ -114,21 +117,20 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
 static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO,
 			  htu21_show_humidity, NULL, 0);
 
-static struct attribute *htu21_attributes[] = {
+static struct attribute *htu21_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_humidity1_input.dev_attr.attr,
 	NULL
 };
 
-static const struct attribute_group htu21_group = {
-	.attrs = htu21_attributes,
-};
+ATTRIBUTE_GROUPS(htu21);
 
 static int htu21_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct htu21 *htu21;
-	int err;
+	struct device *hwmon_dev;
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_READ_WORD_DATA)) {
@@ -137,43 +139,17 @@ static int htu21_probe(struct i2c_client *client,
 		return -ENODEV;
 	}
 
-	htu21 = devm_kzalloc(&client->dev, sizeof(*htu21), GFP_KERNEL);
+	htu21 = devm_kzalloc(dev, sizeof(*htu21), GFP_KERNEL);
 	if (!htu21)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, htu21);
-
+	htu21->client = client;
 	mutex_init(&htu21->lock);
 
-	err = sysfs_create_group(&client->dev.kobj, &htu21_group);
-	if (err) {
-		dev_dbg(&client->dev, "could not create sysfs files\n");
-		return err;
-	}
-	htu21->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(htu21->hwmon_dev)) {
-		dev_dbg(&client->dev, "unable to register hwmon device\n");
-		err = PTR_ERR(htu21->hwmon_dev);
-		goto error;
-	}
-
-	dev_info(&client->dev, "initialized\n");
-
-	return 0;
-
-error:
-	sysfs_remove_group(&client->dev.kobj, &htu21_group);
-	return err;
-}
-
-static int htu21_remove(struct i2c_client *client)
-{
-	struct htu21 *htu21 = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(htu21->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &htu21_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   htu21,
+							   htu21_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id htu21_id[] = {
@@ -188,7 +164,6 @@ static struct i2c_driver htu21_driver = {
 		.name	= "htu21",
 	},
 	.probe       = htu21_probe,
-	.remove      = htu21_remove,
 	.id_table    = htu21_id,
 };
 

drivers/hwmon/ibmpowernv.c

@@ -0,0 +1,363 @@
+/*
+ * IBM PowerNV platform sensors for temperature/fan/voltage/power
+ * Copyright (C) 2014 IBM
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ */
+
+#define DRVNAME		"ibmpowernv"
+#define pr_fmt(fmt)	DRVNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+#include <linux/platform_device.h>
+#include <asm/opal.h>
+#include <linux/err.h>
+
+#define MAX_ATTR_LEN	32
+
+/* Sensor suffix name from DT */
+#define DT_FAULT_ATTR_SUFFIX		"faulted"
+#define DT_DATA_ATTR_SUFFIX		"data"
+#define DT_THRESHOLD_ATTR_SUFFIX	"thrs"
+
+/*
+ * Enumerates all the types of sensors in the POWERNV platform and does index
+ * into 'struct sensor_group'
+ */
+enum sensors {
+	FAN,
+	AMBIENT_TEMP,
+	POWER_SUPPLY,
+	POWER_INPUT,
+	MAX_SENSOR_TYPE,
+};
+
+static struct sensor_group {
+	const char *name;
+	const char *compatible;
+	struct attribute_group group;
+	u32 attr_count;
+} sensor_groups[] = {
+	{"fan", "ibm,opal-sensor-cooling-fan"},
+	{"temp", "ibm,opal-sensor-amb-temp"},
+	{"in", "ibm,opal-sensor-power-supply"},
+	{"power", "ibm,opal-sensor-power"}
+};
+
+struct sensor_data {
+	u32 id; /* An opaque id of the firmware for each sensor */
+	enum sensors type;
+	char name[MAX_ATTR_LEN];
+	struct device_attribute dev_attr;
+};
+
+struct platform_data {
+	const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1];
+	u32 sensors_count; /* Total count of sensors from each group */
+};
+
+/* Platform device representing all the ibmpowernv sensors */
+static struct platform_device *pdevice;
+
+static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
+			   char *buf)
+{
+	struct sensor_data *sdata = container_of(devattr, struct sensor_data,
+						 dev_attr);
+	ssize_t ret;
+	u32 x;
+
+	ret = opal_get_sensor_data(sdata->id, &x);
+	if (ret)
+		return ret;
+
+	/* Convert temperature to milli-degrees */
+	if (sdata->type == AMBIENT_TEMP)
+		x *= 1000;
+	/* Convert power to micro-watts */
+	else if (sdata->type == POWER_INPUT)
+		x *= 1000000;
+
+	return sprintf(buf, "%u\n", x);
+}
+
+static int __init get_sensor_index_attr(const char *name, u32 *index,
+					char *attr)
+{
+	char *hash_pos = strchr(name, '#');
+	char buf[8] = { 0 };
+	char *dash_pos;
+	u32 copy_len;
+	int err;
+
+	if (!hash_pos)
+		return -EINVAL;
+
+	dash_pos = strchr(hash_pos, '-');
+	if (!dash_pos)
+		return -EINVAL;
+
+	copy_len = dash_pos - hash_pos - 1;
+	if (copy_len >= sizeof(buf))
+		return -EINVAL;
+
+	strncpy(buf, hash_pos + 1, copy_len);
+
+	err = kstrtou32(buf, 10, index);
+	if (err)
+		return err;
+
+	strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);
+
+	return 0;
+}
+
+/*
+ * This function translates the DT node name into the 'hwmon' attribute name.
+ * IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc.
+ * which need to be mapped as fan2_input, temp1_max respectively before
+ * populating them inside hwmon device class.
+ */
+static int __init create_hwmon_attr_name(struct device *dev, enum sensors type,
+					 const char *node_name,
+					 char *hwmon_attr_name)
+{
+	char attr_suffix[MAX_ATTR_LEN];
+	char *attr_name;
+	u32 index;
+	int err;
+
+	err = get_sensor_index_attr(node_name, &index, attr_suffix);
+	if (err) {
+		dev_err(dev, "Sensor device node name '%s' is invalid\n",
+			node_name);
+		return err;
+	}
+
+	if (!strcmp(attr_suffix, DT_FAULT_ATTR_SUFFIX)) {
+		attr_name = "fault";
+	} else if (!strcmp(attr_suffix, DT_DATA_ATTR_SUFFIX)) {
+		attr_name = "input";
+	} else if (!strcmp(attr_suffix, DT_THRESHOLD_ATTR_SUFFIX)) {
+		if (type == AMBIENT_TEMP)
+			attr_name = "max";
+		else if (type == FAN)
+			attr_name = "min";
+		else
+			return -ENOENT;
+	} else {
+		return -ENOENT;
+	}
+
+	snprintf(hwmon_attr_name, MAX_ATTR_LEN, "%s%d_%s",
+		 sensor_groups[type].name, index, attr_name);
+	return 0;
+}
+
+static int __init populate_attr_groups(struct platform_device *pdev)
+{
+	struct platform_data *pdata = platform_get_drvdata(pdev);
+	const struct attribute_group **pgroups = pdata->attr_groups;
+	struct device_node *opal, *np;
+	enum sensors type;
+
+	opal = of_find_node_by_path("/ibm,opal/sensors");
+	if (!opal) {
+		dev_err(&pdev->dev, "Opal node 'sensors' not found\n");
+		return -ENODEV;
+	}
+
+	for_each_child_of_node(opal, np) {
+		if (np->name == NULL)
+			continue;
+
+		for (type = 0; type < MAX_SENSOR_TYPE; type++)
+			if (of_device_is_compatible(np,
+					sensor_groups[type].compatible)) {
+				sensor_groups[type].attr_count++;
+				break;
+			}
+	}
+
+	of_node_put(opal);
+
+	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
+		sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev,
+					sizeof(struct attribute *) *
+					(sensor_groups[type].attr_count + 1),
+					GFP_KERNEL);
+		if (!sensor_groups[type].group.attrs)
+			return -ENOMEM;
+
+		pgroups[type] = &sensor_groups[type].group;
+		pdata->sensors_count += sensor_groups[type].attr_count;
+		sensor_groups[type].attr_count = 0;
+	}
+
+	return 0;
+}
+
+/*
+ * Iterate through the device tree for each child of 'sensors' node, create
+ * a sysfs attribute file, the file is named by translating the DT node name
+ * to the name required by the higher 'hwmon' driver like fan1_input, temp1_max
+ * etc..
+ */
+static int __init create_device_attrs(struct platform_device *pdev)
+{
+	struct platform_data *pdata = platform_get_drvdata(pdev);
+	const struct attribute_group **pgroups = pdata->attr_groups;
+	struct device_node *opal, *np;
+	struct sensor_data *sdata;
+	u32 sensor_id;
+	enum sensors type;
+	u32 count = 0;
+	int err = 0;
+
+	opal = of_find_node_by_path("/ibm,opal/sensors");
+	sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata),
+			     GFP_KERNEL);
+	if (!sdata) {
+		err = -ENOMEM;
+		goto exit_put_node;
+	}
+
+	for_each_child_of_node(opal, np) {
+		if (np->name == NULL)
+			continue;
+
+		for (type = 0; type < MAX_SENSOR_TYPE; type++)
+			if (of_device_is_compatible(np,
+					sensor_groups[type].compatible))
+				break;
+
+		if (type == MAX_SENSOR_TYPE)
+			continue;
+
+		if (of_property_read_u32(np, "sensor-id", &sensor_id)) {
+			dev_info(&pdev->dev,
+				 "'sensor-id' missing in the node '%s'\n",
+				 np->name);
+			continue;
+		}
+
+		sdata[count].id = sensor_id;
+		sdata[count].type = type;
+		err = create_hwmon_attr_name(&pdev->dev, type, np->name,
+					     sdata[count].name);
+		if (err)
+			goto exit_put_node;
+
+		sysfs_attr_init(&sdata[count].dev_attr.attr);
+		sdata[count].dev_attr.attr.name = sdata[count].name;
+		sdata[count].dev_attr.attr.mode = S_IRUGO;
+		sdata[count].dev_attr.show = show_sensor;
+
+		pgroups[type]->attrs[sensor_groups[type].attr_count++] =
+				&sdata[count++].dev_attr.attr;
+	}
+
+exit_put_node:
+	of_node_put(opal);
+	return err;
+}
+
+static int __init ibmpowernv_probe(struct platform_device *pdev)
+{
+	struct platform_data *pdata;
+	struct device *hwmon_dev;
+	int err;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, pdata);
+	pdata->sensors_count = 0;
+	err = populate_attr_groups(pdev);
+	if (err)
+		return err;
+
+	/* Create sysfs attribute data for each sensor found in the DT */
+	err = create_device_attrs(pdev);
+	if (err)
+		return err;
+
+	/* Finally, register with hwmon */
+	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME,
+							   pdata,
+							   pdata->attr_groups);
+
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static struct platform_driver ibmpowernv_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = DRVNAME,
+	},
+};
+
+static int __init ibmpowernv_init(void)
+{
+	int err;
+
+	pdevice = platform_device_alloc(DRVNAME, 0);
+	if (!pdevice) {
+		pr_err("Device allocation failed\n");
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	err = platform_device_add(pdevice);
+	if (err) {
+		pr_err("Device addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_driver_probe(&ibmpowernv_driver, ibmpowernv_probe);
+	if (err) {
+		pr_err("Platfrom driver probe failed\n");
+		goto exit_device_del;
+	}
+
+	return 0;
+
+exit_device_del:
+	platform_device_del(pdevice);
+exit_device_put:
+	platform_device_put(pdevice);
+exit:
+	return err;
+}
+
+static void __exit ibmpowernv_exit(void)
+{
+	platform_driver_unregister(&ibmpowernv_driver);
+	platform_device_unregister(pdevice);
+}
+
+MODULE_AUTHOR("Neelesh Gupta <neelegup@linux.vnet.ibm.com>");
+MODULE_DESCRIPTION("IBM POWERNV platform sensors");
+MODULE_LICENSE("GPL");
+
+module_init(ibmpowernv_init);
+module_exit(ibmpowernv_exit);

drivers/hwmon/lineage-pem.c

@@ -125,7 +125,8 @@
 #define FAN_SPEED_LEN		5
 
 struct pem_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[4];
 
 	struct mutex update_lock;
 	bool valid;
@@ -160,8 +161,8 @@ abort:
 
 static struct pem_data *pem_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct pem_data *data = i2c_get_clientdata(client);
+	struct pem_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct pem_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -444,18 +445,20 @@ static int pem_probe(struct i2c_client *client,
 		     const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct pem_data *data;
-	int ret;
+	int ret, idx = 0;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BLOCK_DATA
 				     | I2C_FUNC_SMBUS_WRITE_BYTE))
 		return -ENODEV;
 
-	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/*
@@ -471,14 +474,12 @@ static int pem_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
-	dev_info(&client->dev, "Firmware revision %d.%d.%d\n",
+	dev_info(dev, "Firmware revision %d.%d.%d\n",
 		 data->firmware_rev[0], data->firmware_rev[1],
 		 data->firmware_rev[2]);
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&client->dev.kobj, &pem_group);
-	if (ret)
-		return ret;
+	/* sysfs hooks */
+	data->groups[idx++] = &pem_group;
 
 	/*
 	 * Check if input readings are supported.
@@ -501,12 +502,9 @@ static int pem_probe(struct i2c_client *client,
 			    data->input_string[2] || data->input_string[3]))
 			data->input_length = sizeof(data->input_string);
 	}
-	ret = 0;
-	if (data->input_length) {
-		ret = sysfs_create_group(&client->dev.kobj, &pem_input_group);
-		if (ret)
-			goto out_remove_groups;
-	}
+
+	if (data->input_length)
+		data->groups[idx++] = &pem_input_group;
 
 	/*
 	 * Check if fan speed readings are supported.
@@ -520,37 +518,12 @@ static int pem_probe(struct i2c_client *client,
 	if (!ret && (data->fan_speed[0] || data->fan_speed[1] ||
 		     data->fan_speed[2] || data->fan_speed[3])) {
 		data->fans_supported = true;
-		ret = sysfs_create_group(&client->dev.kobj, &pem_fan_group);
-		if (ret)
-			goto out_remove_groups;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_remove_groups;
+		data->groups[idx++] = &pem_fan_group;
 	}
 
-	return 0;
-
-out_remove_groups:
-	sysfs_remove_group(&client->dev.kobj, &pem_input_group);
-	sysfs_remove_group(&client->dev.kobj, &pem_fan_group);
-	sysfs_remove_group(&client->dev.kobj, &pem_group);
-	return ret;
-}
-
-static int pem_remove(struct i2c_client *client)
-{
-	struct pem_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-
-	sysfs_remove_group(&client->dev.kobj, &pem_input_group);
-	sysfs_remove_group(&client->dev.kobj, &pem_fan_group);
-	sysfs_remove_group(&client->dev.kobj, &pem_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id pem_id[] = {
@@ -564,7 +537,6 @@ static struct i2c_driver pem_driver = {
 		   .name = "lineage_pem",
 		   },
 	.probe = pem_probe,
-	.remove = pem_remove,
 	.id_table = pem_id,
 };
 

drivers/hwmon/lm63.c

@@ -126,24 +126,17 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END };
 #define FAN_TO_REG(val)		((val) <= 82 ? 0xFFFC : \
 				 (5400000 / (val)) & 0xFFFC)
 #define TEMP8_FROM_REG(reg)	((reg) * 1000)
-#define TEMP8_TO_REG(val)	((val) <= -128000 ? -128 : \
-				 (val) >= 127000 ? 127 : \
-				 (val) < 0 ? ((val) - 500) / 1000 : \
-				 ((val) + 500) / 1000)
-#define TEMP8U_TO_REG(val)	((val) <= 0 ? 0 : \
-				 (val) >= 255000 ? 255 : \
-				 ((val) + 500) / 1000)
+#define TEMP8_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), -128000, \
+							    127000), 1000)
+#define TEMP8U_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, \
+							    255000), 1000)
 #define TEMP11_FROM_REG(reg)	((reg) / 32 * 125)
-#define TEMP11_TO_REG(val)	((val) <= -128000 ? 0x8000 : \
-				 (val) >= 127875 ? 0x7FE0 : \
-				 (val) < 0 ? ((val) - 62) / 125 * 32 : \
-				 ((val) + 62) / 125 * 32)
-#define TEMP11U_TO_REG(val)	((val) <= 0 ? 0 : \
-				 (val) >= 255875 ? 0xFFE0 : \
-				 ((val) + 62) / 125 * 32)
-#define HYST_TO_REG(val)	((val) <= 0 ? 0 : \
-				 (val) >= 127000 ? 127 : \
-				 ((val) + 500) / 1000)
+#define TEMP11_TO_REG(val)	(DIV_ROUND_CLOSEST(clamp_val((val), -128000, \
+							     127875), 125) * 32)
+#define TEMP11U_TO_REG(val)	(DIV_ROUND_CLOSEST(clamp_val((val), 0, \
+							     255875), 125) * 32)
+#define HYST_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \
+						  1000)
 
 #define UPDATE_INTERVAL(max, rate) \
 			((1000 << (LM63_MAX_CONVRATE - (rate))) / (max))

drivers/hwmon/lm75.c

@@ -52,6 +52,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
 	tmp100,
 	tmp101,
 	tmp105,
+	tmp112,
 	tmp175,
 	tmp275,
 	tmp75,
@@ -255,6 +256,12 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		data->sample_time = HZ;
 		clr_mask |= 1 << 7;		/* not one-shot mode */
 		break;
+	case tmp112:
+		set_mask |= 3 << 5;		/* 12-bit mode */
+		clr_mask |= 1 << 7;		/* not one-shot mode */
+		data->resolution = 12;
+		data->sample_time = HZ / 4;
+		break;
 	case tmp105:
 	case tmp175:
 	case tmp275:
@@ -323,6 +330,7 @@ static const struct i2c_device_id lm75_ids[] = {
 	{ "tmp100", tmp100, },
 	{ "tmp101", tmp101, },
 	{ "tmp105", tmp105, },
+	{ "tmp112", tmp112, },
 	{ "tmp175", tmp175, },
 	{ "tmp275", tmp275, },
 	{ "tmp75", tmp75, },

drivers/hwmon/lm77.c

@@ -80,8 +80,7 @@ struct lm77_data {
  */
 static inline s16 LM77_TEMP_TO_REG(int temp)
 {
-	int ntemp = clamp_val(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);
-	return (ntemp / 500) * 8;
+	return (temp / 500) * 8;
 }
 
 static inline int LM77_TEMP_FROM_REG(s16 reg)
@@ -175,6 +174,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
 	if (err)
 		return err;
 
+	val = clamp_val(val, LM77_TEMP_MIN, LM77_TEMP_MAX);
 	mutex_lock(&data->update_lock);
 	data->temp[nr] = val;
 	lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val));
@@ -192,15 +192,16 @@ static ssize_t set_temp_hyst(struct device *dev,
 {
 	struct lm77_data *data = dev_get_drvdata(dev);
 	struct i2c_client *client = data->client;
-	unsigned long val;
+	long val;
 	int err;
 
-	err = kstrtoul(buf, 10, &val);
+	err = kstrtol(buf, 10, &val);
 	if (err)
 		return err;
 
 	mutex_lock(&data->update_lock);
-	data->temp[t_hyst] = data->temp[t_crit] - val;
+	val = clamp_val(data->temp[t_crit] - val, LM77_TEMP_MIN, LM77_TEMP_MAX);
+	data->temp[t_hyst] = val;
 	lm77_write_value(client, LM77_REG_TEMP_HYST,
 			 LM77_TEMP_TO_REG(data->temp[t_hyst]));
 	mutex_unlock(&data->update_lock);

drivers/hwmon/lm78.c

@@ -108,7 +108,7 @@ static inline int FAN_FROM_REG(u8 val, int div)
  * TEMP: mC (-128C to +127C)
  * REG: 1C/bit, two's complement
  */
-static inline s8 TEMP_TO_REG(int val)
+static inline s8 TEMP_TO_REG(long val)
 {
 	int nval = clamp_val(val, -128000, 127000) ;
 	return nval < 0 ? (nval - 500) / 1000 : (nval + 500) / 1000;
@@ -123,7 +123,6 @@ static inline int TEMP_FROM_REG(s8 val)
 
 struct lm78_data {
 	struct i2c_client *client;
-	struct device *hwmon_dev;
 	struct mutex lock;
 	enum chips type;
 
@@ -468,7 +467,7 @@ static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
 
-static struct attribute *lm78_attributes[] = {
+static struct attribute *lm78_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in0_min.dev_attr.attr,
 	&sensor_dev_attr_in0_max.dev_attr.attr,
@@ -519,9 +518,7 @@ static struct attribute *lm78_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group lm78_group = {
-	.attrs = lm78_attributes,
-};
+ATTRIBUTE_GROUPS(lm78);
 
 /*
  * ISA related code
@@ -533,19 +530,6 @@ static struct platform_device *pdev;
 
 static unsigned short isa_address = 0x290;
 
-/*
- * I2C devices get this name attribute automatically, but for ISA devices
- * we must create it by ourselves.
- */
-static ssize_t show_name(struct device *dev, struct device_attribute
-			 *devattr, char *buf)
-{
-	struct lm78_data *data = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%s\n", data->name);
-}
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 static struct lm78_data *lm78_data_if_isa(void)
 {
 	return pdev ? platform_get_drvdata(pdev) : NULL;
@@ -661,46 +645,23 @@ static int lm78_i2c_detect(struct i2c_client *client,
 static int lm78_i2c_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct lm78_data *data;
-	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct lm78_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
 	data->client = client;
 	data->type = id->driver_data;
 
 	/* Initialize the LM78 chip */
 	lm78_init_device(data);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &lm78_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto error;
-	}
-
-	return 0;
-
-error:
-	sysfs_remove_group(&client->dev.kobj, &lm78_group);
-	return err;
-}
-
-static int lm78_i2c_remove(struct i2c_client *client)
-{
-	struct lm78_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm78_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, lm78_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id lm78_i2c_id[] = {
@@ -716,7 +677,6 @@ static struct i2c_driver lm78_driver = {
 		.name	= "lm78",
 	},
 	.probe		= lm78_i2c_probe,
-	.remove		= lm78_i2c_remove,
 	.id_table	= lm78_i2c_id,
 	.detect		= lm78_i2c_detect,
 	.address_list	= normal_i2c,
@@ -839,17 +799,18 @@ static struct lm78_data *lm78_update_device(struct device *dev)
 #ifdef CONFIG_ISA
 static int lm78_isa_probe(struct platform_device *pdev)
 {
-	int err;
+	struct device *dev = &pdev->dev;
+	struct device *hwmon_dev;
 	struct lm78_data *data;
 	struct resource *res;
 
 	/* Reserve the ISA region */
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (!devm_request_region(&pdev->dev, res->start + LM78_ADDR_REG_OFFSET,
+	if (!devm_request_region(dev, res->start + LM78_ADDR_REG_OFFSET,
 				 2, "lm78"))
 		return -EBUSY;
 
-	data = devm_kzalloc(&pdev->dev, sizeof(struct lm78_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -868,37 +829,9 @@ static int lm78_isa_probe(struct platform_device *pdev)
 	/* Initialize the LM78 chip */
 	lm78_init_device(data);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&pdev->dev.kobj, &lm78_group);
-	if (err)
-		goto exit_remove_files;
-	err = device_create_file(&pdev->dev, &dev_attr_name);
-	if (err)
-		goto exit_remove_files;
-
-	data->hwmon_dev = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
- exit_remove_files:
-	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);
-	device_remove_file(&pdev->dev, &dev_attr_name);
-	return err;
-}
-
-static int lm78_isa_remove(struct platform_device *pdev)
-{
-	struct lm78_data *data = platform_get_drvdata(pdev);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);
-	device_remove_file(&pdev->dev, &dev_attr_name);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
+							   data, lm78_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static struct platform_driver lm78_isa_driver = {
@@ -907,7 +840,6 @@ static struct platform_driver lm78_isa_driver = {
 		.name	= "lm78",
 	},
 	.probe		= lm78_isa_probe,
-	.remove		= lm78_isa_remove,
 };
 
 /* return 1 if a supported chip is found, 0 otherwise */

drivers/hwmon/lm85.c

@@ -121,7 +121,6 @@ enum chips {
 #define EMC6D102_REG_EXTEND_ADC3	0x87
 #define EMC6D102_REG_EXTEND_ADC4	0x88
 
-
 /*
  * Conversions. Rounding and limit checking is only done on the TO_REG
  * variants. Note that you should be a bit careful with which arguments
@@ -155,7 +154,7 @@ static inline u16 FAN_TO_REG(unsigned long val)
 
 /* Temperature is reported in .001 degC increments */
 #define TEMP_TO_REG(val)	\
-		clamp_val(SCALE(val, 1000, 1), -127, 127)
+		DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000)
 #define TEMPEXT_FROM_REG(val, ext)	\
 		SCALE(((val) << 4) + (ext), 16, 1000)
 #define TEMP_FROM_REG(val)	((val) * 1000)
@@ -189,7 +188,7 @@ static const int lm85_range_map[] = {
 	13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
 };
 
-static int RANGE_TO_REG(int range)
+static int RANGE_TO_REG(long range)
 {
 	int i;
 
@@ -211,7 +210,7 @@ static const int adm1027_freq_map[8] = { /* 1 Hz */
 	11, 15, 22, 29, 35, 44, 59, 88
 };
 
-static int FREQ_TO_REG(const int *map, int freq)
+static int FREQ_TO_REG(const int *map, unsigned long freq)
 {
 	int i;
 
@@ -303,7 +302,8 @@ struct lm85_autofan {
  * The structure is dynamically allocated.
  */
 struct lm85_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[6];
 	const int *freq_map;
 	enum chips type;
 
@@ -334,44 +334,235 @@ struct lm85_data {
 	struct lm85_zone zone[3];
 };
 
-static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info);
-static int lm85_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id);
-static int lm85_remove(struct i2c_client *client);
+static int lm85_read_value(struct i2c_client *client, u8 reg)
+{
+	int res;
 
-static int lm85_read_value(struct i2c_client *client, u8 reg);
-static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
-static struct lm85_data *lm85_update_device(struct device *dev);
+	/* What size location is it? */
+	switch (reg) {
+	case LM85_REG_FAN(0):  /* Read WORD data */
+	case LM85_REG_FAN(1):
+	case LM85_REG_FAN(2):
+	case LM85_REG_FAN(3):
+	case LM85_REG_FAN_MIN(0):
+	case LM85_REG_FAN_MIN(1):
+	case LM85_REG_FAN_MIN(2):
+	case LM85_REG_FAN_MIN(3):
+	case LM85_REG_ALARM1:	/* Read both bytes at once */
+		res = i2c_smbus_read_byte_data(client, reg) & 0xff;
+		res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
+		break;
+	default:	/* Read BYTE data */
+		res = i2c_smbus_read_byte_data(client, reg);
+		break;
+	}
 
+	return res;
+}
 
-static const struct i2c_device_id lm85_id[] = {
-	{ "adm1027", adm1027 },
-	{ "adt7463", adt7463 },
-	{ "adt7468", adt7468 },
-	{ "lm85", lm85 },
-	{ "lm85b", lm85 },
-	{ "lm85c", lm85 },
-	{ "emc6d100", emc6d100 },
-	{ "emc6d101", emc6d100 },
-	{ "emc6d102", emc6d102 },
-	{ "emc6d103", emc6d103 },
-	{ "emc6d103s", emc6d103s },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, lm85_id);
+static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
+{
+	switch (reg) {
+	case LM85_REG_FAN(0):  /* Write WORD data */
+	case LM85_REG_FAN(1):
+	case LM85_REG_FAN(2):
+	case LM85_REG_FAN(3):
+	case LM85_REG_FAN_MIN(0):
+	case LM85_REG_FAN_MIN(1):
+	case LM85_REG_FAN_MIN(2):
+	case LM85_REG_FAN_MIN(3):
+	/* NOTE: ALARM is read only, so not included here */
+		i2c_smbus_write_byte_data(client, reg, value & 0xff);
+		i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
+		break;
+	default:	/* Write BYTE data */
+		i2c_smbus_write_byte_data(client, reg, value);
+		break;
+	}
+}
 
-static struct i2c_driver lm85_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name   = "lm85",
-	},
-	.probe		= lm85_probe,
-	.remove		= lm85_remove,
-	.id_table	= lm85_id,
-	.detect		= lm85_detect,
-	.address_list	= normal_i2c,
-};
+static struct lm85_data *lm85_update_device(struct device *dev)
+{
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid ||
+	     time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
+		/* Things that change quickly */
+		dev_dbg(&client->dev, "Reading sensor values\n");
+
+		/*
+		 * Have to read extended bits first to "freeze" the
+		 * more significant bits that are read later.
+		 * There are 2 additional resolution bits per channel and we
+		 * have room for 4, so we shift them to the left.
+		 */
+		if (data->type == adm1027 || data->type == adt7463 ||
+		    data->type == adt7468) {
+			int ext1 = lm85_read_value(client,
+						   ADM1027_REG_EXTEND_ADC1);
+			int ext2 =  lm85_read_value(client,
+						    ADM1027_REG_EXTEND_ADC2);
+			int val = (ext1 << 8) + ext2;
+
+			for (i = 0; i <= 4; i++)
+				data->in_ext[i] =
+					((val >> (i * 2)) & 0x03) << 2;
+
+			for (i = 0; i <= 2; i++)
+				data->temp_ext[i] =
+					(val >> ((i + 4) * 2)) & 0x0c;
+		}
+
+		data->vid = lm85_read_value(client, LM85_REG_VID);
+
+		for (i = 0; i <= 3; ++i) {
+			data->in[i] =
+			    lm85_read_value(client, LM85_REG_IN(i));
+			data->fan[i] =
+			    lm85_read_value(client, LM85_REG_FAN(i));
+		}
+
+		if (!data->has_vid5)
+			data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
+
+		if (data->type == adt7468)
+			data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
+
+		for (i = 0; i <= 2; ++i) {
+			data->temp[i] =
+			    lm85_read_value(client, LM85_REG_TEMP(i));
+			data->pwm[i] =
+			    lm85_read_value(client, LM85_REG_PWM(i));
+
+			if (IS_ADT7468_OFF64(data))
+				data->temp[i] -= 64;
+		}
+
+		data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
+
+		if (data->type == emc6d100) {
+			/* Three more voltage sensors */
+			for (i = 5; i <= 7; ++i) {
+				data->in[i] = lm85_read_value(client,
+							EMC6D100_REG_IN(i));
+			}
+			/* More alarm bits */
+			data->alarms |= lm85_read_value(client,
+						EMC6D100_REG_ALARM3) << 16;
+		} else if (data->type == emc6d102 || data->type == emc6d103 ||
+			   data->type == emc6d103s) {
+			/*
+			 * Have to read LSB bits after the MSB ones because
+			 * the reading of the MSB bits has frozen the
+			 * LSBs (backward from the ADM1027).
+			 */
+			int ext1 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC1);
+			int ext2 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC2);
+			int ext3 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC3);
+			int ext4 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC4);
+			data->in_ext[0] = ext3 & 0x0f;
+			data->in_ext[1] = ext4 & 0x0f;
+			data->in_ext[2] = ext4 >> 4;
+			data->in_ext[3] = ext3 >> 4;
+			data->in_ext[4] = ext2 >> 4;
+
+			data->temp_ext[0] = ext1 & 0x0f;
+			data->temp_ext[1] = ext2 & 0x0f;
+			data->temp_ext[2] = ext1 >> 4;
+		}
+
+		data->last_reading = jiffies;
+	}  /* last_reading */
+
+	if (!data->valid ||
+	     time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
+		/* Things that don't change often */
+		dev_dbg(&client->dev, "Reading config values\n");
+
+		for (i = 0; i <= 3; ++i) {
+			data->in_min[i] =
+			    lm85_read_value(client, LM85_REG_IN_MIN(i));
+			data->in_max[i] =
+			    lm85_read_value(client, LM85_REG_IN_MAX(i));
+			data->fan_min[i] =
+			    lm85_read_value(client, LM85_REG_FAN_MIN(i));
+		}
+
+		if (!data->has_vid5)  {
+			data->in_min[4] = lm85_read_value(client,
+					  LM85_REG_IN_MIN(4));
+			data->in_max[4] = lm85_read_value(client,
+					  LM85_REG_IN_MAX(4));
+		}
+
+		if (data->type == emc6d100) {
+			for (i = 5; i <= 7; ++i) {
+				data->in_min[i] = lm85_read_value(client,
+						EMC6D100_REG_IN_MIN(i));
+				data->in_max[i] = lm85_read_value(client,
+						EMC6D100_REG_IN_MAX(i));
+			}
+		}
+
+		for (i = 0; i <= 2; ++i) {
+			int val;
+
+			data->temp_min[i] =
+			    lm85_read_value(client, LM85_REG_TEMP_MIN(i));
+			data->temp_max[i] =
+			    lm85_read_value(client, LM85_REG_TEMP_MAX(i));
+
+			data->autofan[i].config =
+			    lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
+			val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
+			data->pwm_freq[i] = val & 0x07;
+			data->zone[i].range = val >> 4;
+			data->autofan[i].min_pwm =
+			    lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
+			data->zone[i].limit =
+			    lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
+			data->zone[i].critical =
+			    lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
+
+			if (IS_ADT7468_OFF64(data)) {
+				data->temp_min[i] -= 64;
+				data->temp_max[i] -= 64;
+				data->zone[i].limit -= 64;
+				data->zone[i].critical -= 64;
+			}
+		}
+
+		if (data->type != emc6d103s) {
+			i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
+			data->autofan[0].min_off = (i & 0x20) != 0;
+			data->autofan[1].min_off = (i & 0x40) != 0;
+			data->autofan[2].min_off = (i & 0x80) != 0;
+
+			i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
+			data->zone[0].hyst = i >> 4;
+			data->zone[1].hyst = i & 0x0f;
+
+			i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
+			data->zone[2].hyst = i >> 4;
+		}
+
+		data->last_config = jiffies;
+	}  /* last_config */
+
+	data->valid = 1;
+
+	mutex_unlock(&data->update_lock);
 
+	return data;
+}
 
 /* 4 Fans */
 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
@@ -394,8 +585,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -460,6 +651,9 @@ static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
 	if (err)
 		return err;
 
+	if (val > 255)
+		return -EINVAL;
+
 	data->vrm = val;
 	return count;
 }
@@ -515,8 +709,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -557,8 +751,8 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
 		*attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 config;
 	unsigned long val;
 	int err;
@@ -615,8 +809,8 @@ static ssize_t set_pwm_freq(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -682,8 +876,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -710,8 +904,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -766,8 +960,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -797,8 +991,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -843,8 +1037,8 @@ static ssize_t set_pwm_auto_channels(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -873,8 +1067,8 @@ static ssize_t set_pwm_auto_pwm_min(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -902,8 +1096,8 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 tmp;
 	long val;
 	int err;
@@ -953,8 +1147,8 @@ static ssize_t set_temp_auto_temp_off(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int min;
 	long val;
 	int err;
@@ -990,8 +1184,8 @@ static ssize_t set_temp_auto_temp_min(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1029,8 +1223,8 @@ static ssize_t set_temp_auto_temp_max(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int min;
 	long val;
 	int err;
@@ -1063,8 +1257,8 @@ static ssize_t set_temp_auto_temp_crit(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
+	struct lm85_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1355,30 +1549,18 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return 0;
 }
 
-static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data)
-{
-	sysfs_remove_group(&client->dev.kobj, &lm85_group);
-	if (data->type != emc6d103s) {
-		sysfs_remove_group(&client->dev.kobj, &lm85_group_minctl);
-		sysfs_remove_group(&client->dev.kobj, &lm85_group_temp_off);
-	}
-	if (!data->has_vid5)
-		sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
-	if (data->type == emc6d100)
-		sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
-}
-
-static int lm85_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id)
+static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct lm85_data *data;
-	int err;
+	int idx = 0;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct lm85_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	data->type = id->driver_data;
 	mutex_init(&data->update_lock);
 
@@ -1403,20 +1585,13 @@ static int lm85_probe(struct i2c_client *client,
 	/* Initialize the LM85 chip */
 	lm85_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &lm85_group);
-	if (err)
-		return err;
+	/* sysfs hooks */
+	data->groups[idx++] = &lm85_group;
 
 	/* minctl and temp_off exist on all chips except emc6d103s */
 	if (data->type != emc6d103s) {
-		err = sysfs_create_group(&client->dev.kobj, &lm85_group_minctl);
-		if (err)
-			goto err_remove_files;
-		err = sysfs_create_group(&client->dev.kobj,
-					 &lm85_group_temp_off);
-		if (err)
-			goto err_remove_files;
+		data->groups[idx++] = &lm85_group_minctl;
+		data->groups[idx++] = &lm85_group_temp_off;
 	}
 
 	/*
@@ -1429,271 +1604,44 @@ static int lm85_probe(struct i2c_client *client,
 			data->has_vid5 = true;
 	}
 
-	if (!data->has_vid5) {
-		err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4);
-		if (err)
-			goto err_remove_files;
-	}
+	if (!data->has_vid5)
+		data->groups[idx++] = &lm85_group_in4;
 
 	/* The EMC6D100 has 3 additional voltage inputs */
-	if (data->type == emc6d100) {
-		err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567);
-		if (err)
-			goto err_remove_files;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto err_remove_files;
-	}
-
-	return 0;
-
-	/* Error out and cleanup code */
- err_remove_files:
-	lm85_remove_files(client, data);
-	return err;
-}
-
-static int lm85_remove(struct i2c_client *client)
-{
-	struct lm85_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	lm85_remove_files(client, data);
-	return 0;
-}
-
-
-static int lm85_read_value(struct i2c_client *client, u8 reg)
-{
-	int res;
-
-	/* What size location is it? */
-	switch (reg) {
-	case LM85_REG_FAN(0):  /* Read WORD data */
-	case LM85_REG_FAN(1):
-	case LM85_REG_FAN(2):
-	case LM85_REG_FAN(3):
-	case LM85_REG_FAN_MIN(0):
-	case LM85_REG_FAN_MIN(1):
-	case LM85_REG_FAN_MIN(2):
-	case LM85_REG_FAN_MIN(3):
-	case LM85_REG_ALARM1:	/* Read both bytes at once */
-		res = i2c_smbus_read_byte_data(client, reg) & 0xff;
-		res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
-		break;
-	default:	/* Read BYTE data */
-		res = i2c_smbus_read_byte_data(client, reg);
-		break;
-	}
+	if (data->type == emc6d100)
+		data->groups[idx++] = &lm85_group_in567;
 
-	return res;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
-{
-	switch (reg) {
-	case LM85_REG_FAN(0):  /* Write WORD data */
-	case LM85_REG_FAN(1):
-	case LM85_REG_FAN(2):
-	case LM85_REG_FAN(3):
-	case LM85_REG_FAN_MIN(0):
-	case LM85_REG_FAN_MIN(1):
-	case LM85_REG_FAN_MIN(2):
-	case LM85_REG_FAN_MIN(3):
-	/* NOTE: ALARM is read only, so not included here */
-		i2c_smbus_write_byte_data(client, reg, value & 0xff);
-		i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
-		break;
-	default:	/* Write BYTE data */
-		i2c_smbus_write_byte_data(client, reg, value);
-		break;
-	}
-}
-
-static struct lm85_data *lm85_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm85_data *data = i2c_get_clientdata(client);
-	int i;
-
-	mutex_lock(&data->update_lock);
-
-	if (!data->valid ||
-	     time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
-		/* Things that change quickly */
-		dev_dbg(&client->dev, "Reading sensor values\n");
-
-		/*
-		 * Have to read extended bits first to "freeze" the
-		 * more significant bits that are read later.
-		 * There are 2 additional resolution bits per channel and we
-		 * have room for 4, so we shift them to the left.
-		 */
-		if (data->type == adm1027 || data->type == adt7463 ||
-		    data->type == adt7468) {
-			int ext1 = lm85_read_value(client,
-						   ADM1027_REG_EXTEND_ADC1);
-			int ext2 =  lm85_read_value(client,
-						    ADM1027_REG_EXTEND_ADC2);
-			int val = (ext1 << 8) + ext2;
-
-			for (i = 0; i <= 4; i++)
-				data->in_ext[i] =
-					((val >> (i * 2)) & 0x03) << 2;
-
-			for (i = 0; i <= 2; i++)
-				data->temp_ext[i] =
-					(val >> ((i + 4) * 2)) & 0x0c;
-		}
-
-		data->vid = lm85_read_value(client, LM85_REG_VID);
-
-		for (i = 0; i <= 3; ++i) {
-			data->in[i] =
-			    lm85_read_value(client, LM85_REG_IN(i));
-			data->fan[i] =
-			    lm85_read_value(client, LM85_REG_FAN(i));
-		}
-
-		if (!data->has_vid5)
-			data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
-
-		if (data->type == adt7468)
-			data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
-
-		for (i = 0; i <= 2; ++i) {
-			data->temp[i] =
-			    lm85_read_value(client, LM85_REG_TEMP(i));
-			data->pwm[i] =
-			    lm85_read_value(client, LM85_REG_PWM(i));
-
-			if (IS_ADT7468_OFF64(data))
-				data->temp[i] -= 64;
-		}
-
-		data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
-
-		if (data->type == emc6d100) {
-			/* Three more voltage sensors */
-			for (i = 5; i <= 7; ++i) {
-				data->in[i] = lm85_read_value(client,
-							EMC6D100_REG_IN(i));
-			}
-			/* More alarm bits */
-			data->alarms |= lm85_read_value(client,
-						EMC6D100_REG_ALARM3) << 16;
-		} else if (data->type == emc6d102 || data->type == emc6d103 ||
-			   data->type == emc6d103s) {
-			/*
-			 * Have to read LSB bits after the MSB ones because
-			 * the reading of the MSB bits has frozen the
-			 * LSBs (backward from the ADM1027).
-			 */
-			int ext1 = lm85_read_value(client,
-						   EMC6D102_REG_EXTEND_ADC1);
-			int ext2 = lm85_read_value(client,
-						   EMC6D102_REG_EXTEND_ADC2);
-			int ext3 = lm85_read_value(client,
-						   EMC6D102_REG_EXTEND_ADC3);
-			int ext4 = lm85_read_value(client,
-						   EMC6D102_REG_EXTEND_ADC4);
-			data->in_ext[0] = ext3 & 0x0f;
-			data->in_ext[1] = ext4 & 0x0f;
-			data->in_ext[2] = ext4 >> 4;
-			data->in_ext[3] = ext3 >> 4;
-			data->in_ext[4] = ext2 >> 4;
-
-			data->temp_ext[0] = ext1 & 0x0f;
-			data->temp_ext[1] = ext2 & 0x0f;
-			data->temp_ext[2] = ext1 >> 4;
-		}
-
-		data->last_reading = jiffies;
-	}  /* last_reading */
-
-	if (!data->valid ||
-	     time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
-		/* Things that don't change often */
-		dev_dbg(&client->dev, "Reading config values\n");
-
-		for (i = 0; i <= 3; ++i) {
-			data->in_min[i] =
-			    lm85_read_value(client, LM85_REG_IN_MIN(i));
-			data->in_max[i] =
-			    lm85_read_value(client, LM85_REG_IN_MAX(i));
-			data->fan_min[i] =
-			    lm85_read_value(client, LM85_REG_FAN_MIN(i));
-		}
-
-		if (!data->has_vid5)  {
-			data->in_min[4] = lm85_read_value(client,
-					  LM85_REG_IN_MIN(4));
-			data->in_max[4] = lm85_read_value(client,
-					  LM85_REG_IN_MAX(4));
-		}
-
-		if (data->type == emc6d100) {
-			for (i = 5; i <= 7; ++i) {
-				data->in_min[i] = lm85_read_value(client,
-						EMC6D100_REG_IN_MIN(i));
-				data->in_max[i] = lm85_read_value(client,
-						EMC6D100_REG_IN_MAX(i));
-			}
-		}
-
-		for (i = 0; i <= 2; ++i) {
-			int val;
-
-			data->temp_min[i] =
-			    lm85_read_value(client, LM85_REG_TEMP_MIN(i));
-			data->temp_max[i] =
-			    lm85_read_value(client, LM85_REG_TEMP_MAX(i));
-
-			data->autofan[i].config =
-			    lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
-			val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
-			data->pwm_freq[i] = val & 0x07;
-			data->zone[i].range = val >> 4;
-			data->autofan[i].min_pwm =
-			    lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
-			data->zone[i].limit =
-			    lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
-			data->zone[i].critical =
-			    lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
-
-			if (IS_ADT7468_OFF64(data)) {
-				data->temp_min[i] -= 64;
-				data->temp_max[i] -= 64;
-				data->zone[i].limit -= 64;
-				data->zone[i].critical -= 64;
-			}
-		}
-
-		if (data->type != emc6d103s) {
-			i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
-			data->autofan[0].min_off = (i & 0x20) != 0;
-			data->autofan[1].min_off = (i & 0x40) != 0;
-			data->autofan[2].min_off = (i & 0x80) != 0;
-
-			i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
-			data->zone[0].hyst = i >> 4;
-			data->zone[1].hyst = i & 0x0f;
-
-			i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
-			data->zone[2].hyst = i >> 4;
-		}
-
-		data->last_config = jiffies;
-	}  /* last_config */
-
-	data->valid = 1;
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id lm85_id[] = {
+	{ "adm1027", adm1027 },
+	{ "adt7463", adt7463 },
+	{ "adt7468", adt7468 },
+	{ "lm85", lm85 },
+	{ "lm85b", lm85 },
+	{ "lm85c", lm85 },
+	{ "emc6d100", emc6d100 },
+	{ "emc6d101", emc6d100 },
+	{ "emc6d102", emc6d102 },
+	{ "emc6d103", emc6d103 },
+	{ "emc6d103s", emc6d103s },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm85_id);
 
-	return data;
-}
+static struct i2c_driver lm85_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name   = "lm85",
+	},
+	.probe		= lm85_probe,
+	.id_table	= lm85_id,
+	.detect		= lm85_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(lm85_driver);
 

drivers/hwmon/lm93.c

@@ -207,7 +207,7 @@ struct block1_t {
  * Client-specific data
  */
 struct lm93_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 
 	struct mutex update_lock;
 	unsigned long last_updated;	/* In jiffies */
@@ -919,8 +919,8 @@ static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
 
 static struct lm93_data *lm93_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	const unsigned long interval = HZ + (HZ / 2);
 
 	mutex_lock(&data->update_lock);
@@ -1158,8 +1158,8 @@ static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int vccp = nr - 6;
 	long vid;
 	unsigned long val;
@@ -1239,8 +1239,8 @@ static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int vccp = nr - 6;
 	long vid;
 	unsigned long val;
@@ -1323,8 +1323,8 @@ static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1358,8 +1358,8 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1394,8 +1394,8 @@ static ssize_t store_temp_auto_base(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1430,8 +1430,8 @@ static ssize_t store_temp_auto_boost(struct device *dev,
 				     const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -1469,8 +1469,8 @@ static ssize_t store_temp_auto_boost_hyst(struct device *dev,
 					  const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1520,8 +1520,8 @@ static ssize_t store_temp_auto_offset(struct device *dev,
 	struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
 	int nr = s_attr->index;
 	int ofs = s_attr->nr;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1632,8 +1632,8 @@ static ssize_t store_temp_auto_pwm_min(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 reg, ctl4;
 	unsigned long val;
 	int err;
@@ -1680,8 +1680,8 @@ static ssize_t store_temp_auto_offset_hyst(struct device *dev,
 						const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 reg;
 	unsigned long val;
 	int err;
@@ -1741,8 +1741,8 @@ static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
 				const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1824,8 +1824,8 @@ static ssize_t store_fan_smart_tach(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -1880,8 +1880,8 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
 				const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ctl2, ctl4;
 	unsigned long val;
 	int err;
@@ -1928,8 +1928,8 @@ static ssize_t store_pwm_enable(struct device *dev,
 				const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ctl2;
 	unsigned long val;
 	int err;
@@ -2006,8 +2006,8 @@ static ssize_t store_pwm_freq(struct device *dev,
 				const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ctl4;
 	unsigned long val;
 	int err;
@@ -2046,8 +2046,8 @@ static ssize_t store_pwm_auto_channels(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -2087,8 +2087,8 @@ static ssize_t store_pwm_auto_spinup_min(struct device *dev,
 						const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ctl3, ctl4;
 	unsigned long val;
 	int err;
@@ -2130,8 +2130,8 @@ static ssize_t store_pwm_auto_spinup_time(struct device *dev,
 						const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ctl3;
 	unsigned long val;
 	int err;
@@ -2168,8 +2168,8 @@ static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ramp;
 	unsigned long val;
 	int err;
@@ -2202,8 +2202,8 @@ static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 ramp;
 	unsigned long val;
 	int err;
@@ -2270,8 +2270,8 @@ static ssize_t store_prochot_max(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -2308,8 +2308,8 @@ static ssize_t store_prochot_override(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -2351,8 +2351,8 @@ static ssize_t store_prochot_interval(struct device *dev,
 					const char *buf, size_t count)
 {
 	int nr = (to_sensor_dev_attr(attr))->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 tmp;
 	unsigned long val;
 	int err;
@@ -2390,8 +2390,8 @@ static ssize_t store_prochot_override_duty_cycle(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -2423,8 +2423,8 @@ static ssize_t store_prochot_short(struct device *dev,
 					struct device_attribute *attr,
 					const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm93_data *data = i2c_get_clientdata(client);
+	struct lm93_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -2631,9 +2631,7 @@ static struct attribute *lm93_attrs[] = {
 	NULL
 };
 
-static struct attribute_group lm93_attr_grp = {
-	.attrs = lm93_attrs,
-};
+ATTRIBUTE_GROUPS(lm93);
 
 static void lm93_init_client(struct i2c_client *client)
 {
@@ -2726,61 +2724,42 @@ static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
 static int lm93_probe(struct i2c_client *client,
 		      const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct lm93_data *data;
-	int err, func;
+	struct device *hwmon_dev;
+	int func;
 	void (*update)(struct lm93_data *, struct i2c_client *);
 
 	/* choose update routine based on bus capabilities */
 	func = i2c_get_functionality(client->adapter);
 	if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
 			(!disable_block)) {
-		dev_dbg(&client->dev, "using SMBus block data transactions\n");
+		dev_dbg(dev, "using SMBus block data transactions\n");
 		update = lm93_update_client_full;
 	} else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
-		dev_dbg(&client->dev,
-			"disabled SMBus block data transactions\n");
+		dev_dbg(dev, "disabled SMBus block data transactions\n");
 		update = lm93_update_client_min;
 	} else {
-		dev_dbg(&client->dev,
-			"detect failed, smbus byte and/or word data not supported!\n");
+		dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n");
 		return -ENODEV;
 	}
 
-	data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
-	i2c_set_clientdata(client, data);
 
 	/* housekeeping */
+	data->client = client;
 	data->update = update;
 	mutex_init(&data->update_lock);
 
 	/* initialize the chip */
 	lm93_init_client(client);
 
-	err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
-	if (err)
-		return err;
-
-	/* Register hwmon driver class */
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (!IS_ERR(data->hwmon_dev))
-		return 0;
-
-	err = PTR_ERR(data->hwmon_dev);
-	dev_err(&client->dev, "error registering hwmon device.\n");
-	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
-	return err;
-}
-
-static int lm93_remove(struct i2c_client *client)
-{
-	struct lm93_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   lm93_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id lm93_id[] = {
@@ -2796,7 +2775,6 @@ static struct i2c_driver lm93_driver = {
 		.name	= "lm93",
 	},
 	.probe		= lm93_probe,
-	.remove		= lm93_remove,
 	.id_table	= lm93_id,
 	.detect		= lm93_detect,
 	.address_list	= normal_i2c,

drivers/hwmon/ltc2945.c

@@ -469,7 +469,7 @@ static struct attribute *ltc2945_attrs[] = {
 };
 ATTRIBUTE_GROUPS(ltc2945);
 
-static struct regmap_config ltc2945_regmap_config = {
+static const struct regmap_config ltc2945_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = LTC2945_MIN_ADIN_THRES_L,

drivers/hwmon/ltc4222.c

@@ -186,7 +186,7 @@ static struct attribute *ltc4222_attrs[] = {
 };
 ATTRIBUTE_GROUPS(ltc4222);
 
-static struct regmap_config ltc4222_regmap_config = {
+static const struct regmap_config ltc4222_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = LTC4222_ADC_CONTROL,

drivers/hwmon/ltc4260.c

@@ -150,7 +150,7 @@ static struct attribute *ltc4260_attrs[] = {
 };
 ATTRIBUTE_GROUPS(ltc4260);
 
-static struct regmap_config ltc4260_regmap_config = {
+static const struct regmap_config ltc4260_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = LTC4260_ADIN,

drivers/hwmon/max16065.c

@@ -642,10 +642,7 @@ static int max16065_probe(struct i2c_client *client,
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data, data->groups);
-	if (unlikely(IS_ERR(hwmon_dev)))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id max16065_id[] = {

drivers/hwmon/max1668.c

@@ -30,7 +30,7 @@
 #include <linux/mutex.h>
 
 /* Addresses to scan */
-static unsigned short max1668_addr_list[] = {
+static const unsigned short max1668_addr_list[] = {
 	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
 
 /* max1668 registers */

drivers/hwmon/max6639.c

@@ -35,7 +35,7 @@
 #include <linux/i2c/max6639.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END };
 
 /* The MAX6639 registers, valid channel numbers: 0, 1 */
 #define MAX6639_REG_TEMP(ch)			(0x00 + (ch))

drivers/hwmon/max6697.c

@@ -495,15 +495,13 @@ static void max6697_get_config_of(struct device_node *node,
 	int len;
 	const __be32 *prop;
 
-	prop = of_get_property(node, "smbus-timeout-disable", &len);
-	if (prop)
-		pdata->smbus_timeout_disable = true;
-	prop = of_get_property(node, "extended-range-enable", &len);
-	if (prop)
-		pdata->extended_range_enable = true;
-	prop = of_get_property(node, "beta-compensation-enable", &len);
-	if (prop)
-		pdata->beta_compensation = true;
+	pdata->smbus_timeout_disable =
+		of_property_read_bool(node, "smbus-timeout-disable");
+	pdata->extended_range_enable =
+		of_property_read_bool(node, "extended-range-enable");
+	pdata->beta_compensation =
+		of_property_read_bool(node, "beta-compensation-enable");
+
 	prop = of_get_property(node, "alert-mask", &len);
 	if (prop && len == sizeof(u32))
 		pdata->alert_mask = be32_to_cpu(prop[0]);

drivers/hwmon/nct6775.c

@@ -735,7 +735,6 @@ struct nct6775_data {
 	enum kinds kind;
 	const char *name;
 
-	int num_attr_groups;
 	const struct attribute_group *groups[6];
 
 	u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
@@ -3276,6 +3275,7 @@ static int nct6775_probe(struct platform_device *pdev)
 	u8 cr2a;
 	struct attribute_group *group;
 	struct device *hwmon_dev;
+	int num_attr_groups = 0;
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
@@ -3907,29 +3907,29 @@ static int nct6775_probe(struct platform_device *pdev)
 	if (IS_ERR(group))
 		return PTR_ERR(group);
 
-	data->groups[data->num_attr_groups++] = group;
+	data->groups[num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
 					  fls(data->have_in));
 	if (IS_ERR(group))
 		return PTR_ERR(group);
 
-	data->groups[data->num_attr_groups++] = group;
+	data->groups[num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
 					  fls(data->has_fan));
 	if (IS_ERR(group))
 		return PTR_ERR(group);
 
-	data->groups[data->num_attr_groups++] = group;
+	data->groups[num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
 					  fls(data->have_temp));
 	if (IS_ERR(group))
 		return PTR_ERR(group);
 
-	data->groups[data->num_attr_groups++] = group;
-	data->groups[data->num_attr_groups++] = &nct6775_group_other;
+	data->groups[num_attr_groups++] = group;
+	data->groups[num_attr_groups++] = &nct6775_group_other;
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
 							   data, data->groups);
@@ -4221,7 +4221,7 @@ static void __exit sensors_nct6775_exit(void)
 }
 
 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
-MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
+MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D driver");
 MODULE_LICENSE("GPL");
 
 module_init(sensors_nct6775_init);

drivers/hwmon/ntc_thermistor.c

@@ -51,6 +51,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
 	{ "ncp21wb473", TYPE_NCPXXWB473 },
 	{ "ncp03wb473", TYPE_NCPXXWB473 },
 	{ "ncp15wl333", TYPE_NCPXXWL333 },
+	{ "b57330v2103", TYPE_B57330V2103},
 	{ },
 };
 
@@ -133,6 +134,47 @@ static const struct ntc_compensation ncpXXwl333[] = {
 	{ .temp_c	= 125, .ohm	= 707 },
 };
 
+/*
+ * The following compensation table is from the specification of EPCOS NTC
+ * Thermistors Datasheet
+ */
+static const struct ntc_compensation b57330v2103[] = {
+	{ .temp_c	= -40, .ohm	= 190030 },
+	{ .temp_c	= -35, .ohm	= 145360 },
+	{ .temp_c	= -30, .ohm	= 112060 },
+	{ .temp_c	= -25, .ohm	= 87041 },
+	{ .temp_c	= -20, .ohm	= 68104 },
+	{ .temp_c	= -15, .ohm	= 53665 },
+	{ .temp_c	= -10, .ohm	= 42576 },
+	{ .temp_c	= -5, .ohm	= 34001 },
+	{ .temp_c	= 0, .ohm	= 27326 },
+	{ .temp_c	= 5, .ohm	= 22096 },
+	{ .temp_c	= 10, .ohm	= 17973 },
+	{ .temp_c	= 15, .ohm	= 14703 },
+	{ .temp_c	= 20, .ohm	= 12090 },
+	{ .temp_c	= 25, .ohm	= 10000 },
+	{ .temp_c	= 30, .ohm	= 8311 },
+	{ .temp_c	= 35, .ohm	= 6941 },
+	{ .temp_c	= 40, .ohm	= 5825 },
+	{ .temp_c	= 45, .ohm	= 4911 },
+	{ .temp_c	= 50, .ohm	= 4158 },
+	{ .temp_c	= 55, .ohm	= 3536 },
+	{ .temp_c	= 60, .ohm	= 3019 },
+	{ .temp_c	= 65, .ohm	= 2588 },
+	{ .temp_c	= 70, .ohm	= 2227 },
+	{ .temp_c	= 75, .ohm	= 1924 },
+	{ .temp_c	= 80, .ohm	= 1668 },
+	{ .temp_c	= 85, .ohm	= 1451 },
+	{ .temp_c	= 90, .ohm	= 1266 },
+	{ .temp_c	= 95, .ohm	= 1108 },
+	{ .temp_c	= 100, .ohm	= 973 },
+	{ .temp_c	= 105, .ohm	= 857 },
+	{ .temp_c	= 110, .ohm	= 757 },
+	{ .temp_c	= 115, .ohm	= 671 },
+	{ .temp_c	= 120, .ohm	= 596 },
+	{ .temp_c	= 125, .ohm	= 531 },
+};
+
 struct ntc_data {
 	struct device *hwmon_dev;
 	struct ntc_thermistor_platform_data *pdata;
@@ -173,6 +215,8 @@ static const struct of_device_id ntc_match[] = {
 		.data = &ntc_thermistor_id[3] },
 	{ .compatible = "murata,ncp15wl333",
 		.data = &ntc_thermistor_id[4] },
+	{ .compatible = "epcos,b57330v2103",
+		.data = &ntc_thermistor_id[5]},
 
 	/* Usage of vendor name "ntc" is deprecated */
 	{ .compatible = "ntc,ncp15wb473",
@@ -490,6 +534,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
 		data->comp = ncpXXwl333;
 		data->n_comp = ARRAY_SIZE(ncpXXwl333);
 		break;
+	case TYPE_B57330V2103:
+		data->comp = b57330v2103;
+		data->n_comp = ARRAY_SIZE(b57330v2103);
+		break;
 	default:
 		dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
 				pdev_id->driver_data, pdev_id->name);
@@ -546,7 +594,7 @@ static struct platform_driver ntc_thermistor_driver = {
 
 module_platform_driver(ntc_thermistor_driver);
 
-MODULE_DESCRIPTION("NTC Thermistor Driver from Murata");
+MODULE_DESCRIPTION("NTC Thermistor Driver");
 MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:ntc-thermistor");

drivers/hwmon/pmbus/Kconfig

@@ -20,8 +20,7 @@ config SENSORS_PMBUS
 	help
 	  If you say yes here you get hardware monitoring support for generic
 	  PMBus devices, including but not limited to ADP4000, BMR453, BMR454,
-	  MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, TPS40400,
-	  and TPS40422.
+	  MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, and TPS40400.
 
 	  This driver can also be built as a module. If so, the module will
 	  be called pmbus.
@@ -87,6 +86,16 @@ config SENSORS_MAX8688
 	  This driver can also be built as a module. If so, the module will
 	  be called max8688.
 
+config SENSORS_TPS40422
+	tristate "TI TPS40422"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for TI
+	  TPS40422.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called tps40422.
+
 config SENSORS_UCD9000
 	tristate "TI UCD90120, UCD90124, UCD9090, UCD90910"
 	default n

drivers/hwmon/pmbus/Makefile

@@ -10,6 +10,7 @@ obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
 obj-$(CONFIG_SENSORS_MAX16064)	+= max16064.o
 obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o
 obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o
+obj-$(CONFIG_SENSORS_TPS40422)	+= tps40422.o
 obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o
 obj-$(CONFIG_SENSORS_UCD9200)	+= ucd9200.o
 obj-$(CONFIG_SENSORS_ZL6100)	+= zl6100.o

drivers/hwmon/pmbus/pmbus.c

@@ -193,7 +193,6 @@ static const struct i2c_device_id pmbus_id[] = {
 	{"pdt012", 1},
 	{"pmbus", 0},
 	{"tps40400", 1},
-	{"tps40422", 2},
 	{"udt020", 1},
 	{}
 };

drivers/hwmon/pmbus/tps40422.c

@@ -0,0 +1,64 @@
+/*
+ * Hardware monitoring driver for TI TPS40422
+ *
+ * Copyright (c) 2014 Nokia Solutions and Networks.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info tps40422_info = {
+	.pages = 2,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+	.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
+		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
+		| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+	.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
+		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
+		| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+};
+
+static int tps40422_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &tps40422_info);
+}
+
+static const struct i2c_device_id tps40422_id[] = {
+	{"tps40422", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, tps40422_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver tps40422_driver = {
+	.driver = {
+		   .name = "tps40422",
+		   },
+	.probe = tps40422_probe,
+	.remove = pmbus_do_remove,
+	.id_table = tps40422_id,
+};
+
+module_i2c_driver(tps40422_driver);
+
+MODULE_AUTHOR("Zhu Laiwen <richard.zhu@nsn.com>");
+MODULE_DESCRIPTION("PMBus driver for TI TPS40422");
+MODULE_LICENSE("GPL");

drivers/hwmon/powr1220.c

@@ -0,0 +1,391 @@
+/*
+ * powr1220.c - Driver for the Lattice POWR1220 programmable power supply
+ * and monitor. Users can read all ADC inputs along with their labels
+ * using the sysfs nodes.
+ *
+ * Copyright (c) 2014 Echo360 http://www.echo360.com
+ * Scott Kanowitz <skanowitz@echo360.com> <scott.kanowitz@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+#define ADC_STEP_MV			2
+#define ADC_MAX_LOW_MEASUREMENT_MV	2000
+
+enum powr1220_regs {
+	VMON_STATUS0,
+	VMON_STATUS1,
+	VMON_STATUS2,
+	OUTPUT_STATUS0,
+	OUTPUT_STATUS1,
+	OUTPUT_STATUS2,
+	INPUT_STATUS,
+	ADC_VALUE_LOW,
+	ADC_VALUE_HIGH,
+	ADC_MUX,
+	UES_BYTE0,
+	UES_BYTE1,
+	UES_BYTE2,
+	UES_BYTE3,
+	GP_OUTPUT1,
+	GP_OUTPUT2,
+	GP_OUTPUT3,
+	INPUT_VALUE,
+	RESET,
+	TRIM1_TRIM,
+	TRIM2_TRIM,
+	TRIM3_TRIM,
+	TRIM4_TRIM,
+	TRIM5_TRIM,
+	TRIM6_TRIM,
+	TRIM7_TRIM,
+	TRIM8_TRIM,
+	MAX_POWR1220_REGS
+};
+
+enum powr1220_adc_values {
+	VMON1,
+	VMON2,
+	VMON3,
+	VMON4,
+	VMON5,
+	VMON6,
+	VMON7,
+	VMON8,
+	VMON9,
+	VMON10,
+	VMON11,
+	VMON12,
+	VCCA,
+	VCCINP,
+	MAX_POWR1220_ADC_VALUES
+};
+
+struct powr1220_data {
+	struct i2c_client *client;
+	struct mutex update_lock;
+	bool adc_valid[MAX_POWR1220_ADC_VALUES];
+	 /* the next value is in jiffies */
+	unsigned long adc_last_updated[MAX_POWR1220_ADC_VALUES];
+
+	/* values */
+	int adc_maxes[MAX_POWR1220_ADC_VALUES];
+	int adc_values[MAX_POWR1220_ADC_VALUES];
+};
+
+static const char * const input_names[] = {
+	[VMON1]    = "vmon1",
+	[VMON2]    = "vmon2",
+	[VMON3]    = "vmon3",
+	[VMON4]    = "vmon4",
+	[VMON5]    = "vmon5",
+	[VMON6]    = "vmon6",
+	[VMON7]    = "vmon7",
+	[VMON8]    = "vmon8",
+	[VMON9]    = "vmon9",
+	[VMON10]   = "vmon10",
+	[VMON11]   = "vmon11",
+	[VMON12]   = "vmon12",
+	[VCCA]     = "vcca",
+	[VCCINP]   = "vccinp",
+};
+
+/* Reads the specified ADC channel */
+static int powr1220_read_adc(struct device *dev, int ch_num)
+{
+	struct powr1220_data *data = dev_get_drvdata(dev);
+	int reading;
+	int result;
+	int adc_range = 0;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->adc_last_updated[ch_num] + HZ) ||
+			!data->adc_valid[ch_num]) {
+		/*
+		 * figure out if we need to use the attenuator for
+		 * high inputs or inputs that we don't yet have a measurement
+		 * for. We dynamically set the attenuator depending on the
+		 * max reading.
+		 */
+		if (data->adc_maxes[ch_num] > ADC_MAX_LOW_MEASUREMENT_MV ||
+				data->adc_maxes[ch_num] == 0)
+			adc_range = 1 << 4;
+
+		/* set the attenuator and mux */
+		result = i2c_smbus_write_byte_data(data->client, ADC_MUX,
+				adc_range | ch_num);
+		if (result)
+			goto exit;
+
+		/*
+		 * wait at least Tconvert time (200 us) for the
+		 * conversion to complete
+		 */
+		udelay(200);
+
+		/* get the ADC reading */
+		result = i2c_smbus_read_byte_data(data->client, ADC_VALUE_LOW);
+		if (result < 0)
+			goto exit;
+
+		reading = result >> 4;
+
+		/* get the upper half of the reading */
+		result = i2c_smbus_read_byte_data(data->client, ADC_VALUE_HIGH);
+		if (result < 0)
+			goto exit;
+
+		reading |= result << 4;
+
+		/* now convert the reading to a voltage */
+		reading *= ADC_STEP_MV;
+		data->adc_values[ch_num] = reading;
+		data->adc_valid[ch_num] = true;
+		data->adc_last_updated[ch_num] = jiffies;
+		result = reading;
+
+		if (reading > data->adc_maxes[ch_num])
+			data->adc_maxes[ch_num] = reading;
+	} else {
+		result = data->adc_values[ch_num];
+	}
+
+exit:
+	mutex_unlock(&data->update_lock);
+
+	return result;
+}
+
+/* Shows the voltage associated with the specified ADC channel */
+static ssize_t powr1220_show_voltage(struct device *dev,
+	struct device_attribute *dev_attr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
+	int adc_val = powr1220_read_adc(dev, attr->index);
+
+	if (adc_val < 0)
+		return adc_val;
+
+	return sprintf(buf, "%d\n", adc_val);
+}
+
+/* Shows the maximum setting associated with the specified ADC channel */
+static ssize_t powr1220_show_max(struct device *dev,
+	struct device_attribute *dev_attr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
+	struct powr1220_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n", data->adc_maxes[attr->index]);
+}
+
+/* Shows the label associated with the specified ADC channel */
+static ssize_t powr1220_show_label(struct device *dev,
+	struct device_attribute *dev_attr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
+
+	return sprintf(buf, "%s\n", input_names[attr->index]);
+}
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON1);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON2);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON3);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON4);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON5);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON6);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON7);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON8);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON9);
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON10);
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON11);
+static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VMON12);
+static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VCCA);
+static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, powr1220_show_voltage, NULL,
+	VCCINP);
+
+static SENSOR_DEVICE_ATTR(in0_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON1);
+static SENSOR_DEVICE_ATTR(in1_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON2);
+static SENSOR_DEVICE_ATTR(in2_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON3);
+static SENSOR_DEVICE_ATTR(in3_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON4);
+static SENSOR_DEVICE_ATTR(in4_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON5);
+static SENSOR_DEVICE_ATTR(in5_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON6);
+static SENSOR_DEVICE_ATTR(in6_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON7);
+static SENSOR_DEVICE_ATTR(in7_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON8);
+static SENSOR_DEVICE_ATTR(in8_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON9);
+static SENSOR_DEVICE_ATTR(in9_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON10);
+static SENSOR_DEVICE_ATTR(in10_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON11);
+static SENSOR_DEVICE_ATTR(in11_highest, S_IRUGO, powr1220_show_max, NULL,
+	VMON12);
+static SENSOR_DEVICE_ATTR(in12_highest, S_IRUGO, powr1220_show_max, NULL,
+	VCCA);
+static SENSOR_DEVICE_ATTR(in13_highest, S_IRUGO, powr1220_show_max, NULL,
+	VCCINP);
+
+static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON1);
+static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON2);
+static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON3);
+static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON4);
+static SENSOR_DEVICE_ATTR(in4_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON5);
+static SENSOR_DEVICE_ATTR(in5_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON6);
+static SENSOR_DEVICE_ATTR(in6_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON7);
+static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON8);
+static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON9);
+static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON10);
+static SENSOR_DEVICE_ATTR(in10_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON11);
+static SENSOR_DEVICE_ATTR(in11_label, S_IRUGO, powr1220_show_label, NULL,
+	VMON12);
+static SENSOR_DEVICE_ATTR(in12_label, S_IRUGO, powr1220_show_label, NULL,
+	VCCA);
+static SENSOR_DEVICE_ATTR(in13_label, S_IRUGO, powr1220_show_label, NULL,
+	VCCINP);
+
+static struct attribute *powr1220_attrs[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in9_input.dev_attr.attr,
+	&sensor_dev_attr_in10_input.dev_attr.attr,
+	&sensor_dev_attr_in11_input.dev_attr.attr,
+	&sensor_dev_attr_in12_input.dev_attr.attr,
+	&sensor_dev_attr_in13_input.dev_attr.attr,
+
+	&sensor_dev_attr_in0_highest.dev_attr.attr,
+	&sensor_dev_attr_in1_highest.dev_attr.attr,
+	&sensor_dev_attr_in2_highest.dev_attr.attr,
+	&sensor_dev_attr_in3_highest.dev_attr.attr,
+	&sensor_dev_attr_in4_highest.dev_attr.attr,
+	&sensor_dev_attr_in5_highest.dev_attr.attr,
+	&sensor_dev_attr_in6_highest.dev_attr.attr,
+	&sensor_dev_attr_in7_highest.dev_attr.attr,
+	&sensor_dev_attr_in8_highest.dev_attr.attr,
+	&sensor_dev_attr_in9_highest.dev_attr.attr,
+	&sensor_dev_attr_in10_highest.dev_attr.attr,
+	&sensor_dev_attr_in11_highest.dev_attr.attr,
+	&sensor_dev_attr_in12_highest.dev_attr.attr,
+	&sensor_dev_attr_in13_highest.dev_attr.attr,
+
+	&sensor_dev_attr_in0_label.dev_attr.attr,
+	&sensor_dev_attr_in1_label.dev_attr.attr,
+	&sensor_dev_attr_in2_label.dev_attr.attr,
+	&sensor_dev_attr_in3_label.dev_attr.attr,
+	&sensor_dev_attr_in4_label.dev_attr.attr,
+	&sensor_dev_attr_in5_label.dev_attr.attr,
+	&sensor_dev_attr_in6_label.dev_attr.attr,
+	&sensor_dev_attr_in7_label.dev_attr.attr,
+	&sensor_dev_attr_in8_label.dev_attr.attr,
+	&sensor_dev_attr_in9_label.dev_attr.attr,
+	&sensor_dev_attr_in10_label.dev_attr.attr,
+	&sensor_dev_attr_in11_label.dev_attr.attr,
+	&sensor_dev_attr_in12_label.dev_attr.attr,
+	&sensor_dev_attr_in13_label.dev_attr.attr,
+
+	NULL
+};
+
+ATTRIBUTE_GROUPS(powr1220);
+
+static int powr1220_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct powr1220_data *data;
+	struct device *hwmon_dev;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	mutex_init(&data->update_lock);
+	data->client = client;
+
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+			client->name, data, powr1220_groups);
+
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id powr1220_ids[] = {
+	{ "powr1220", 0, },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, powr1220_ids);
+
+static struct i2c_driver powr1220_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "powr1220",
+	},
+	.probe		= powr1220_probe,
+	.id_table	= powr1220_ids,
+};
+
+module_i2c_driver(powr1220_driver);
+
+MODULE_AUTHOR("Scott Kanowitz");
+MODULE_DESCRIPTION("POWR1220 driver");
+MODULE_LICENSE("GPL");

drivers/hwmon/pwm-fan.c

@@ -0,0 +1,193 @@
+/*
+ * pwm-fan.c - Hwmon driver for fans connected to PWM lines.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ *
+ * Author: Kamil Debski <k.debski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/sysfs.h>
+
+#define MAX_PWM 255
+
+struct pwm_fan_ctx {
+	struct mutex lock;
+	struct pwm_device *pwm;
+	unsigned char pwm_value;
+};
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+	unsigned long pwm, duty;
+	ssize_t ret;
+
+	if (kstrtoul(buf, 10, &pwm) || pwm > MAX_PWM)
+		return -EINVAL;
+
+	mutex_lock(&ctx->lock);
+
+	if (ctx->pwm_value == pwm)
+		goto exit_set_pwm_no_change;
+
+	if (pwm == 0) {
+		pwm_disable(ctx->pwm);
+		goto exit_set_pwm;
+	}
+
+	duty = DIV_ROUND_UP(pwm * (ctx->pwm->period - 1), MAX_PWM);
+	ret = pwm_config(ctx->pwm, duty, ctx->pwm->period);
+	if (ret)
+		goto exit_set_pwm_err;
+
+	if (ctx->pwm_value == 0) {
+		ret = pwm_enable(ctx->pwm);
+		if (ret)
+			goto exit_set_pwm_err;
+	}
+
+exit_set_pwm:
+	ctx->pwm_value = pwm;
+exit_set_pwm_no_change:
+	ret = count;
+exit_set_pwm_err:
+	mutex_unlock(&ctx->lock);
+	return ret;
+}
+
+static ssize_t show_pwm(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ctx->pwm_value);
+}
+
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
+
+static struct attribute *pwm_fan_attrs[] = {
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	NULL,
+};
+
+ATTRIBUTE_GROUPS(pwm_fan);
+
+static int pwm_fan_probe(struct platform_device *pdev)
+{
+	struct device *hwmon;
+	struct pwm_fan_ctx *ctx;
+	int duty_cycle;
+	int ret;
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	mutex_init(&ctx->lock);
+
+	ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL);
+	if (IS_ERR(ctx->pwm)) {
+		dev_err(&pdev->dev, "Could not get PWM\n");
+		return PTR_ERR(ctx->pwm);
+	}
+
+	platform_set_drvdata(pdev, ctx);
+
+	/* Set duty cycle to maximum allowed */
+	duty_cycle = ctx->pwm->period - 1;
+	ctx->pwm_value = MAX_PWM;
+
+	ret = pwm_config(ctx->pwm, duty_cycle, ctx->pwm->period);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to configure PWM\n");
+		return ret;
+	}
+
+	/* Enbale PWM output */
+	ret = pwm_enable(ctx->pwm);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to enable PWM\n");
+		return ret;
+	}
+
+	hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, "pwmfan",
+						       ctx, pwm_fan_groups);
+	if (IS_ERR(hwmon)) {
+		dev_err(&pdev->dev, "Failed to register hwmon device\n");
+		pwm_disable(ctx->pwm);
+		return PTR_ERR(hwmon);
+	}
+	return 0;
+}
+
+static int pwm_fan_remove(struct platform_device *pdev)
+{
+	struct pwm_fan_ctx *ctx = platform_get_drvdata(pdev);
+
+	if (ctx->pwm_value)
+		pwm_disable(ctx->pwm);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pwm_fan_suspend(struct device *dev)
+{
+	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+
+	if (ctx->pwm_value)
+		pwm_disable(ctx->pwm);
+	return 0;
+}
+
+static int pwm_fan_resume(struct device *dev)
+{
+	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+
+	if (ctx->pwm_value)
+		return pwm_enable(ctx->pwm);
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pwm_fan_pm, pwm_fan_suspend, pwm_fan_resume);
+
+static struct of_device_id of_pwm_fan_match[] = {
+	{ .compatible = "pwm-fan", },
+	{},
+};
+
+static struct platform_driver pwm_fan_driver = {
+	.probe		= pwm_fan_probe,
+	.remove		= pwm_fan_remove,
+	.driver	= {
+		.name		= "pwm-fan",
+		.pm		= &pwm_fan_pm,
+		.of_match_table	= of_pwm_fan_match,
+	},
+};
+
+module_platform_driver(pwm_fan_driver);
+
+MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");
+MODULE_ALIAS("platform:pwm-fan");
+MODULE_DESCRIPTION("PWM FAN driver");
+MODULE_LICENSE("GPL");

drivers/hwmon/sht21.c

@@ -45,7 +45,7 @@
  * @humidity: cached humidity measurement value
  */
 struct sht21 {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex lock;
 	char valid;
 	unsigned long last_update;
@@ -85,14 +85,15 @@ static inline int sht21_rh_ticks_to_per_cent_mille(int ticks)
 
 /**
  * sht21_update_measurements() - get updated measurements from device
- * @client: I2C client device
+ * @dev: device
  *
  * Returns 0 on success, else negative errno.
  */
-static int sht21_update_measurements(struct i2c_client *client)
+static int sht21_update_measurements(struct device *dev)
 {
 	int ret = 0;
-	struct sht21 *sht21 = i2c_get_clientdata(client);
+	struct sht21 *sht21 = dev_get_drvdata(dev);
+	struct i2c_client *client = sht21->client;
 
 	mutex_lock(&sht21->lock);
 	/*
@@ -133,9 +134,10 @@ static ssize_t sht21_show_temperature(struct device *dev,
 	struct device_attribute *attr,
 	char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct sht21 *sht21 = i2c_get_clientdata(client);
-	int ret = sht21_update_measurements(client);
+	struct sht21 *sht21 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = sht21_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", sht21->temperature);
@@ -154,9 +156,10 @@ static ssize_t sht21_show_humidity(struct device *dev,
 	struct device_attribute *attr,
 	char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct sht21 *sht21 = i2c_get_clientdata(client);
-	int ret = sht21_update_measurements(client);
+	struct sht21 *sht21 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = sht21_update_measurements(dev);
 	if (ret < 0)
 		return ret;
 	return sprintf(buf, "%d\n", sht21->humidity);
@@ -168,30 +171,20 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, sht21_show_temperature,
 static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, sht21_show_humidity,
 	NULL, 0);
 
-static struct attribute *sht21_attributes[] = {
+static struct attribute *sht21_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_humidity1_input.dev_attr.attr,
 	NULL
 };
 
-static const struct attribute_group sht21_attr_group = {
-	.attrs = sht21_attributes,
-};
+ATTRIBUTE_GROUPS(sht21);
 
-/**
- * sht21_probe() - probe device
- * @client: I2C client device
- * @id: device ID
- *
- * Called by the I2C core when an entry in the ID table matches a
- * device's name.
- * Returns 0 on success.
- */
 static int sht21_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct sht21 *sht21;
-	int err;
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_WORD_DATA)) {
@@ -200,47 +193,17 @@ static int sht21_probe(struct i2c_client *client,
 		return -ENODEV;
 	}
 
-	sht21 = devm_kzalloc(&client->dev, sizeof(*sht21), GFP_KERNEL);
+	sht21 = devm_kzalloc(dev, sizeof(*sht21), GFP_KERNEL);
 	if (!sht21)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, sht21);
+	sht21->client = client;
 
 	mutex_init(&sht21->lock);
 
-	err = sysfs_create_group(&client->dev.kobj, &sht21_attr_group);
-	if (err) {
-		dev_dbg(&client->dev, "could not create sysfs files\n");
-		return err;
-	}
-	sht21->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(sht21->hwmon_dev)) {
-		dev_dbg(&client->dev, "unable to register hwmon device\n");
-		err = PTR_ERR(sht21->hwmon_dev);
-		goto fail_remove_sysfs;
-	}
-
-	dev_info(&client->dev, "initialized\n");
-
-	return 0;
-
-fail_remove_sysfs:
-	sysfs_remove_group(&client->dev.kobj, &sht21_attr_group);
-	return err;
-}
-
-/**
- * sht21_remove() - remove device
- * @client: I2C client device
- */
-static int sht21_remove(struct i2c_client *client)
-{
-	struct sht21 *sht21 = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(sht21->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &sht21_attr_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   sht21, sht21_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 /* Device ID table */
@@ -253,7 +216,6 @@ MODULE_DEVICE_TABLE(i2c, sht21_id);
 static struct i2c_driver sht21_driver = {
 	.driver.name = "sht21",
 	.probe       = sht21_probe,
-	.remove      = sht21_remove,
 	.id_table    = sht21_id,
 };
 

drivers/hwmon/sis5595.c

@@ -159,7 +159,7 @@ static inline int TEMP_FROM_REG(s8 val)
 {
 	return val * 830 + 52120;
 }
-static inline s8 TEMP_TO_REG(int val)
+static inline s8 TEMP_TO_REG(long val)
 {
 	int nval = clamp_val(val, -54120, 157530) ;
 	return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830;

drivers/hwmon/smm665.c

@@ -140,7 +140,7 @@ enum chips { smm465, smm665, smm665c, smm764, smm766 };
 struct smm665_data {
 	enum chips type;
 	int conversion_time;		/* ADC conversion time */
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	bool valid;
 	unsigned long last_updated;	/* in jiffies */
@@ -239,8 +239,8 @@ static int smm665_read_adc(struct smm665_data *data, int adc)
 
 static struct smm665_data *smm665_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smm665_data *data = i2c_get_clientdata(client);
+	struct smm665_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct smm665_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -315,32 +315,28 @@ static int smm665_convert(u16 adcval, int index)
 
 static int smm665_get_min(struct device *dev, int index)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smm665_data *data = i2c_get_clientdata(client);
+	struct smm665_data *data = dev_get_drvdata(dev);
 
 	return data->alarm_min_limit[index];
 }
 
 static int smm665_get_max(struct device *dev, int index)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smm665_data *data = i2c_get_clientdata(client);
+	struct smm665_data *data = dev_get_drvdata(dev);
 
 	return data->alarm_max_limit[index];
 }
 
 static int smm665_get_lcrit(struct device *dev, int index)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smm665_data *data = i2c_get_clientdata(client);
+	struct smm665_data *data = dev_get_drvdata(dev);
 
 	return data->critical_min_limit[index];
 }
 
 static int smm665_get_crit(struct device *dev, int index)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smm665_data *data = i2c_get_clientdata(client);
+	struct smm665_data *data = dev_get_drvdata(dev);
 
 	return data->critical_max_limit[index];
 }
@@ -486,7 +482,7 @@ SMM665_ATTR(temp1, crit_alarm, SMM665_FAULT_TEMP);
  * Finally, construct an array of pointers to members of the above objects,
  * as required for sysfs_create_group()
  */
-static struct attribute *smm665_attributes[] = {
+static struct attribute *smm665_attrs[] = {
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_in1_min.dev_attr.attr,
 	&sensor_dev_attr_in1_max.dev_attr.attr,
@@ -567,15 +563,14 @@ static struct attribute *smm665_attributes[] = {
 	NULL,
 };
 
-static const struct attribute_group smm665_group = {
-	.attrs = smm665_attributes,
-};
+ATTRIBUTE_GROUPS(smm665);
 
 static int smm665_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
 	struct smm665_data *data;
+	struct device *hwmon_dev;
 	int i, ret;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
@@ -592,6 +587,7 @@ static int smm665_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
+	data->client = client;
 	data->type = id->driver_data;
 	data->cmdreg = i2c_new_dummy(adapter, (client->addr & ~SMM665_REGMASK)
 				     | SMM665_CMDREG_BASE);
@@ -662,21 +658,16 @@ static int smm665_probe(struct i2c_client *client,
 			data->alarm_max_limit[i] = smm665_convert(val, i);
 	}
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&client->dev.kobj, &smm665_group);
-	if (ret)
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name, data,
+							   smm665_groups);
+	if (IS_ERR(hwmon_dev)) {
+		ret = PTR_ERR(hwmon_dev);
 		goto out_unregister;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_remove_group;
 	}
 
 	return 0;
 
-out_remove_group:
-	sysfs_remove_group(&client->dev.kobj, &smm665_group);
 out_unregister:
 	i2c_unregister_device(data->cmdreg);
 	return ret;
@@ -687,9 +678,6 @@ static int smm665_remove(struct i2c_client *client)
 	struct smm665_data *data = i2c_get_clientdata(client);
 
 	i2c_unregister_device(data->cmdreg);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &smm665_group);
-
 	return 0;
 }
 

drivers/hwmon/smsc47m1.c

@@ -142,11 +142,6 @@ struct smsc47m1_sio_data {
 	u8 activate;		/* Remember initial device state */
 };
 
-
-static int __exit smsc47m1_remove(struct platform_device *pdev);
-static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
-		int init);
-
 static inline int smsc47m1_read_value(struct smsc47m1_data *data, u8 reg)
 {
 	return inb_p(data->addr + reg);
@@ -158,13 +153,54 @@ static inline void smsc47m1_write_value(struct smsc47m1_data *data, u8 reg,
 	outb_p(value, data->addr + reg);
 }
 
-static struct platform_driver smsc47m1_driver = {
-	.driver = {
-		.owner	= THIS_MODULE,
-		.name	= DRVNAME,
-	},
-	.remove		= __exit_p(smsc47m1_remove),
-};
+static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
+		int init)
+{
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
+		int i, fan_nr;
+		fan_nr = data->type == smsc47m2 ? 3 : 2;
+
+		for (i = 0; i < fan_nr; i++) {
+			data->fan[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_FAN[i]);
+			data->fan_preload[i] = smsc47m1_read_value(data,
+					       SMSC47M1_REG_FAN_PRELOAD[i]);
+			data->pwm[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_PWM[i]);
+		}
+
+		i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+
+		data->alarms = smsc47m1_read_value(data,
+			       SMSC47M1_REG_ALARM) >> 6;
+		/* Clear alarms if needed */
+		if (data->alarms)
+			smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0);
+
+		if (fan_nr >= 3) {
+			data->fan_div[2] = (smsc47m1_read_value(data,
+					    SMSC47M2_REG_FANDIV3) >> 4) & 0x03;
+			data->alarms |= (smsc47m1_read_value(data,
+					 SMSC47M2_REG_ALARM6) & 0x40) >> 4;
+			/* Clear alarm if needed */
+			if (data->alarms & 0x04)
+				smsc47m1_write_value(data,
+						     SMSC47M2_REG_ALARM6,
+						     0x40);
+		}
+
+		data->last_updated = jiffies;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
 
 static ssize_t get_fan(struct device *dev, struct device_attribute
 		       *devattr, char *buf)
@@ -811,54 +847,13 @@ static int __exit smsc47m1_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
-		int init)
-{
-	struct smsc47m1_data *data = dev_get_drvdata(dev);
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
-		int i, fan_nr;
-		fan_nr = data->type == smsc47m2 ? 3 : 2;
-
-		for (i = 0; i < fan_nr; i++) {
-			data->fan[i] = smsc47m1_read_value(data,
-				       SMSC47M1_REG_FAN[i]);
-			data->fan_preload[i] = smsc47m1_read_value(data,
-					       SMSC47M1_REG_FAN_PRELOAD[i]);
-			data->pwm[i] = smsc47m1_read_value(data,
-				       SMSC47M1_REG_PWM[i]);
-		}
-
-		i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV);
-		data->fan_div[0] = (i >> 4) & 0x03;
-		data->fan_div[1] = i >> 6;
-
-		data->alarms = smsc47m1_read_value(data,
-			       SMSC47M1_REG_ALARM) >> 6;
-		/* Clear alarms if needed */
-		if (data->alarms)
-			smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0);
-
-		if (fan_nr >= 3) {
-			data->fan_div[2] = (smsc47m1_read_value(data,
-					    SMSC47M2_REG_FANDIV3) >> 4) & 0x03;
-			data->alarms |= (smsc47m1_read_value(data,
-					 SMSC47M2_REG_ALARM6) & 0x40) >> 4;
-			/* Clear alarm if needed */
-			if (data->alarms & 0x04)
-				smsc47m1_write_value(data,
-						     SMSC47M2_REG_ALARM6,
-						     0x40);
-		}
-
-		data->last_updated = jiffies;
-	}
-
-	mutex_unlock(&data->update_lock);
-	return data;
-}
+static struct platform_driver smsc47m1_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.remove		= __exit_p(smsc47m1_remove),
+};
 
 static int __init smsc47m1_device_add(unsigned short address,
 				      const struct smsc47m1_sio_data *sio_data)

drivers/hwmon/smsc47m192.c

@@ -95,7 +95,8 @@ static inline int TEMP_FROM_REG(s8 val)
 }
 
 struct smsc47m192_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -112,30 +113,69 @@ struct smsc47m192_data {
 	u8 vrm;
 };
 
-static int smsc47m192_probe(struct i2c_client *client,
-			    const struct i2c_device_id *id);
-static int smsc47m192_detect(struct i2c_client *client,
-			     struct i2c_board_info *info);
-static int smsc47m192_remove(struct i2c_client *client);
-static struct smsc47m192_data *smsc47m192_update_device(struct device *dev);
+static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
+{
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i, config;
 
-static const struct i2c_device_id smsc47m192_id[] = {
-	{ "smsc47m192", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, smsc47m192_id);
+	mutex_lock(&data->update_lock);
 
-static struct i2c_driver smsc47m192_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "smsc47m192",
-	},
-	.probe		= smsc47m192_probe,
-	.remove		= smsc47m192_remove,
-	.id_table	= smsc47m192_id,
-	.detect		= smsc47m192_detect,
-	.address_list	= normal_i2c,
-};
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	 || !data->valid) {
+		u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
+
+		dev_dbg(&client->dev, "Starting smsc47m192 update\n");
+
+		for (i = 0; i <= 7; i++) {
+			data->in[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN(i));
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 3; i++) {
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP[i]);
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_MAX[i]);
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_MIN[i]);
+		}
+		for (i = 1; i < 3; i++)
+			data->temp_offset[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_OFFSET(i));
+		/*
+		 * first offset is temp_offset[0] if SFR bit 4 is set,
+		 * temp_offset[1] otherwise
+		 */
+		if (sfr & 0x10) {
+			data->temp_offset[0] = data->temp_offset[1];
+			data->temp_offset[1] = 0;
+		} else
+			data->temp_offset[0] = 0;
+
+		data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID)
+			    & 0x0f;
+		config = i2c_smbus_read_byte_data(client,
+						  SMSC47M192_REG_CONFIG);
+		if (config & 0x20)
+			data->vid |= (i2c_smbus_read_byte_data(client,
+					SMSC47M192_REG_VID4) & 0x01) << 4;
+		data->alarms = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_ALARM1) |
+			       (i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_ALARM2) << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 /* Voltages */
 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
@@ -170,8 +210,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -192,8 +232,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -259,8 +299,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -281,8 +321,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -312,8 +352,8 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
 	long val;
 	int err;
@@ -552,124 +592,50 @@ static int smsc47m192_detect(struct i2c_client *client,
 static int smsc47m192_probe(struct i2c_client *client,
 			    const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct smsc47m192_data *data;
 	int config;
-	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct smsc47m192_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	data->vrm = vid_which_vrm();
 	mutex_init(&data->update_lock);
 
 	/* Initialize the SMSC47M192 chip */
 	smsc47m192_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group);
-	if (err)
-		return err;
-
+	/* sysfs hooks */
+	data->groups[0] = &smsc47m192_group;
 	/* Pin 110 is either in4 (+12V) or VID4 */
 	config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
-	if (!(config & 0x20)) {
-		err = sysfs_create_group(&client->dev.kobj,
-					 &smsc47m192_group_in4);
-		if (err)
-			goto exit_remove_files;
-	}
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
-	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
-	return err;
-}
-
-static int smsc47m192_remove(struct i2c_client *client)
-{
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
-	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
+	if (!(config & 0x20))
+		data->groups[1] = &smsc47m192_group_in4;
 
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m192_data *data = i2c_get_clientdata(client);
-	int i, config;
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	 || !data->valid) {
-		u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
-
-		dev_dbg(&client->dev, "Starting smsc47m192 update\n");
-
-		for (i = 0; i <= 7; i++) {
-			data->in[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_IN(i));
-			data->in_min[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_IN_MIN(i));
-			data->in_max[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_IN_MAX(i));
-		}
-		for (i = 0; i < 3; i++) {
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_TEMP[i]);
-			data->temp_max[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_TEMP_MAX[i]);
-			data->temp_min[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_TEMP_MIN[i]);
-		}
-		for (i = 1; i < 3; i++)
-			data->temp_offset[i] = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_TEMP_OFFSET(i));
-		/*
-		 * first offset is temp_offset[0] if SFR bit 4 is set,
-		 * temp_offset[1] otherwise
-		 */
-		if (sfr & 0x10) {
-			data->temp_offset[0] = data->temp_offset[1];
-			data->temp_offset[1] = 0;
-		} else
-			data->temp_offset[0] = 0;
-
-		data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID)
-			    & 0x0f;
-		config = i2c_smbus_read_byte_data(client,
-						  SMSC47M192_REG_CONFIG);
-		if (config & 0x20)
-			data->vid |= (i2c_smbus_read_byte_data(client,
-					SMSC47M192_REG_VID4) & 0x01) << 4;
-		data->alarms = i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_ALARM1) |
-			       (i2c_smbus_read_byte_data(client,
-						SMSC47M192_REG_ALARM2) << 8);
-
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id smsc47m192_id[] = {
+	{ "smsc47m192", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, smsc47m192_id);
 
-	return data;
-}
+static struct i2c_driver smsc47m192_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "smsc47m192",
+	},
+	.probe		= smsc47m192_probe,
+	.id_table	= smsc47m192_id,
+	.detect		= smsc47m192_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(smsc47m192_driver);
 

drivers/hwmon/thmc50.c

@@ -68,7 +68,8 @@ static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 };
 
 /* Each client has this additional data */
 struct thmc50_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 
 	struct mutex update_lock;
 	enum chips type;
@@ -85,32 +86,47 @@ struct thmc50_data {
 	u8 alarms;
 };
 
-static int thmc50_detect(struct i2c_client *client,
-			 struct i2c_board_info *info);
-static int thmc50_probe(struct i2c_client *client,
-			const struct i2c_device_id *id);
-static int thmc50_remove(struct i2c_client *client);
-static void thmc50_init_client(struct i2c_client *client);
-static struct thmc50_data *thmc50_update_device(struct device *dev);
+static struct thmc50_data *thmc50_update_device(struct device *dev)
+{
+	struct thmc50_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
 
-static const struct i2c_device_id thmc50_id[] = {
-	{ "adm1022", adm1022 },
-	{ "thmc50", thmc50 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, thmc50_id);
+	mutex_lock(&data->update_lock);
 
-static struct i2c_driver thmc50_driver = {
-	.class = I2C_CLASS_HWMON,
-	.driver = {
-		.name = "thmc50",
-	},
-	.probe = thmc50_probe,
-	.remove = thmc50_remove,
-	.id_table = thmc50_id,
-	.detect = thmc50_detect,
-	.address_list = normal_i2c,
-};
+	if (time_after(jiffies, data->last_updated + timeout)
+	    || !data->valid) {
+
+		int temps = data->has_temp3 ? 3 : 2;
+		int i;
+		int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+
+		prog &= THMC50_REG_CONF_PROGRAMMED;
+
+		for (i = 0; i < temps; i++) {
+			data->temp_input[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP[i]);
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP_MAX[i]);
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP_MIN[i]);
+			data->temp_critical[i] =
+				i2c_smbus_read_byte_data(client,
+					prog ? THMC50_REG_TEMP_CRITICAL[i]
+					     : THMC50_REG_TEMP_DEFAULT[i]);
+		}
+		data->analog_out =
+		    i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
+		data->alarms =
+		    i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
 
 static ssize_t show_analog_out(struct device *dev,
 			       struct device_attribute *attr, char *buf)
@@ -123,8 +139,8 @@ static ssize_t set_analog_out(struct device *dev,
 			      struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thmc50_data *data = i2c_get_clientdata(client);
+	struct thmc50_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int config;
 	unsigned long tmp;
 	int err;
@@ -177,8 +193,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thmc50_data *data = i2c_get_clientdata(client);
+	struct thmc50_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -206,8 +222,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thmc50_data *data = i2c_get_clientdata(client);
+	struct thmc50_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -355,67 +371,9 @@ static int thmc50_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int thmc50_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
-{
-	struct thmc50_data *data;
-	int err;
-
-	data = devm_kzalloc(&client->dev, sizeof(struct thmc50_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, data);
-	data->type = id->driver_data;
-	mutex_init(&data->update_lock);
-
-	thmc50_init_client(client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &thmc50_group);
-	if (err)
-		return err;
-
-	/* Register ADM1022 sysfs hooks */
-	if (data->has_temp3) {
-		err = sysfs_create_group(&client->dev.kobj, &temp3_group);
-		if (err)
-			goto exit_remove_sysfs_thmc50;
-	}
-
-	/* Register a new directory entry with module sensors */
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_sysfs;
-	}
-
-	return 0;
-
-exit_remove_sysfs:
-	if (data->has_temp3)
-		sysfs_remove_group(&client->dev.kobj, &temp3_group);
-exit_remove_sysfs_thmc50:
-	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
-	return err;
-}
-
-static int thmc50_remove(struct i2c_client *client)
+static void thmc50_init_client(struct thmc50_data *data)
 {
-	struct thmc50_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
-	if (data->has_temp3)
-		sysfs_remove_group(&client->dev.kobj, &temp3_group);
-
-	return 0;
-}
-
-static void thmc50_init_client(struct i2c_client *client)
-{
-	struct thmc50_data *data = i2c_get_clientdata(client);
+	struct i2c_client *client = data->client;
 	int config;
 
 	data->analog_out = i2c_smbus_read_byte_data(client,
@@ -433,48 +391,54 @@ static void thmc50_init_client(struct i2c_client *client)
 	i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config);
 }
 
-static struct thmc50_data *thmc50_update_device(struct device *dev)
+static int thmc50_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thmc50_data *data = i2c_get_clientdata(client);
-	int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
+	struct device *dev = &client->dev;
+	struct thmc50_data *data;
+	struct device *hwmon_dev;
+	int idx = 0;
 
-	mutex_lock(&data->update_lock);
+	data = devm_kzalloc(dev, sizeof(struct thmc50_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	if (time_after(jiffies, data->last_updated + timeout)
-	    || !data->valid) {
+	data->client = client;
+	data->type = id->driver_data;
+	mutex_init(&data->update_lock);
 
-		int temps = data->has_temp3 ? 3 : 2;
-		int i;
-		int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+	thmc50_init_client(data);
 
-		prog &= THMC50_REG_CONF_PROGRAMMED;
+	/* sysfs hooks */
+	data->groups[idx++] = &thmc50_group;
 
-		for (i = 0; i < temps; i++) {
-			data->temp_input[i] = i2c_smbus_read_byte_data(client,
-						THMC50_REG_TEMP[i]);
-			data->temp_max[i] = i2c_smbus_read_byte_data(client,
-						THMC50_REG_TEMP_MAX[i]);
-			data->temp_min[i] = i2c_smbus_read_byte_data(client,
-						THMC50_REG_TEMP_MIN[i]);
-			data->temp_critical[i] =
-				i2c_smbus_read_byte_data(client,
-					prog ? THMC50_REG_TEMP_CRITICAL[i]
-					     : THMC50_REG_TEMP_DEFAULT[i]);
-		}
-		data->analog_out =
-		    i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
-		data->alarms =
-		    i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-
-	mutex_unlock(&data->update_lock);
+	/* Register additional ADM1022 sysfs hooks */
+	if (data->has_temp3)
+		data->groups[idx++] = &temp3_group;
 
-	return data;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
+static const struct i2c_device_id thmc50_id[] = {
+	{ "adm1022", adm1022 },
+	{ "thmc50", thmc50 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, thmc50_id);
+
+static struct i2c_driver thmc50_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "thmc50",
+	},
+	.probe = thmc50_probe,
+	.id_table = thmc50_id,
+	.detect = thmc50_detect,
+	.address_list = normal_i2c,
+};
+
 module_i2c_driver(thmc50_driver);
 
 MODULE_AUTHOR("Krzysztof Helt <krzysztof.h1@wp.pl>");

drivers/hwmon/tmp103.c

@@ -0,0 +1,206 @@
+/*
+ * Texas Instruments TMP103 SMBus temperature sensor driver
+ * Copyright (C) 2014 Heiko Schocher <hs@denx.de>
+ *
+ * Based on:
+ * Texas Instruments TMP102 SMBus temperature sensor driver
+ *
+ * Copyright (C) 2010 Steven King <sfking@fdwdc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/jiffies.h>
+#include <linux/regmap.h>
+
+#define TMP103_TEMP_REG		0x00
+#define TMP103_CONF_REG		0x01
+#define TMP103_TLOW_REG		0x02
+#define TMP103_THIGH_REG	0x03
+
+#define TMP103_CONF_M0		0x01
+#define TMP103_CONF_M1		0x02
+#define TMP103_CONF_LC		0x04
+#define TMP103_CONF_FL		0x08
+#define TMP103_CONF_FH		0x10
+#define TMP103_CONF_CR0		0x20
+#define TMP103_CONF_CR1		0x40
+#define TMP103_CONF_ID		0x80
+#define TMP103_CONF_SD		(TMP103_CONF_M1)
+#define TMP103_CONF_SD_MASK	(TMP103_CONF_M0 | TMP103_CONF_M1)
+
+#define TMP103_CONFIG		(TMP103_CONF_CR1 | TMP103_CONF_M1)
+#define TMP103_CONFIG_MASK	(TMP103_CONF_CR0 | TMP103_CONF_CR1 | \
+				 TMP103_CONF_M0 | TMP103_CONF_M1)
+
+static inline int tmp103_reg_to_mc(s8 val)
+{
+	return val * 1000;
+}
+
+static inline u8 tmp103_mc_to_reg(int val)
+{
+	return DIV_ROUND_CLOSEST(val, 1000);
+}
+
+static ssize_t tmp103_show_temp(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+	struct regmap *regmap = dev_get_drvdata(dev);
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(regmap, sda->index, &regval);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%d\n", tmp103_reg_to_mc(regval));
+}
+
+static ssize_t tmp103_set_temp(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+	struct regmap *regmap = dev_get_drvdata(dev);
+	long val;
+	int ret;
+
+	if (kstrtol(buf, 10, &val) < 0)
+		return -EINVAL;
+
+	val = clamp_val(val, -55000, 127000);
+	ret = regmap_write(regmap, sda->index, tmp103_mc_to_reg(val));
+	return ret ? ret : count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tmp103_show_temp, NULL ,
+			  TMP103_TEMP_REG);
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, tmp103_show_temp,
+			  tmp103_set_temp, TMP103_TLOW_REG);
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp103_show_temp,
+			  tmp103_set_temp, TMP103_THIGH_REG);
+
+static struct attribute *tmp103_attrs[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(tmp103);
+
+static bool tmp103_regmap_is_volatile(struct device *dev, unsigned int reg)
+{
+	return reg == TMP103_TEMP_REG;
+}
+
+static const struct regmap_config tmp103_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = TMP103_THIGH_REG,
+	.volatile_reg = tmp103_regmap_is_volatile,
+};
+
+static int tmp103_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct regmap *regmap;
+	int ret;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE_DATA)) {
+		dev_err(&client->dev,
+			"adapter doesn't support SMBus byte transactions\n");
+		return -ENODEV;
+	}
+
+	regmap = devm_regmap_init_i2c(client, &tmp103_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "failed to allocate register map\n");
+		return PTR_ERR(regmap);
+	}
+
+	ret = regmap_update_bits(regmap, TMP103_CONF_REG, TMP103_CONFIG_MASK,
+				 TMP103_CONFIG);
+	if (ret < 0) {
+		dev_err(&client->dev, "error writing config register\n");
+		return ret;
+	}
+
+	i2c_set_clientdata(client, regmap);
+	hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+						      regmap, tmp103_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+#ifdef CONFIG_PM
+static int tmp103_suspend(struct device *dev)
+{
+	struct regmap *regmap = dev_get_drvdata(dev);
+
+	return regmap_update_bits(regmap, TMP103_CONF_REG,
+				  TMP103_CONF_SD_MASK, 0);
+}
+
+static int tmp103_resume(struct device *dev)
+{
+	struct regmap *regmap = dev_get_drvdata(dev);
+
+	return regmap_update_bits(regmap, TMP103_CONF_REG,
+				  TMP103_CONF_SD_MASK, TMP103_CONF_SD);
+}
+
+static const struct dev_pm_ops tmp103_dev_pm_ops = {
+	.suspend	= tmp103_suspend,
+	.resume		= tmp103_resume,
+};
+
+#define TMP103_DEV_PM_OPS (&tmp103_dev_pm_ops)
+#else
+#define	TMP103_DEV_PM_OPS NULL
+#endif /* CONFIG_PM */
+
+static const struct i2c_device_id tmp103_id[] = {
+	{ "tmp103", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tmp103_id);
+
+static struct i2c_driver tmp103_driver = {
+	.driver = {
+		.name	= "tmp103",
+		.pm	= TMP103_DEV_PM_OPS,
+	},
+	.probe		= tmp103_probe,
+	.id_table	= tmp103_id,
+};
+
+module_i2c_driver(tmp103_driver);
+
+MODULE_AUTHOR("Heiko Schocher <hs@denx.de>");
+MODULE_DESCRIPTION("Texas Instruments TMP103 temperature sensor driver");
+MODULE_LICENSE("GPL");

drivers/hwmon/tmp421.c

@@ -13,15 +13,11 @@
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
  * Driver for the Texas Instruments TMP421 SMBus temperature sensor IC.
- * Supported models: TMP421, TMP422, TMP423
+ * Supported models: TMP421, TMP422, TMP423, TMP441, TMP442
  */
 
 #include <linux/module.h>
@@ -39,9 +35,10 @@
 static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f,
 					     I2C_CLIENT_END };
 
-enum chips { tmp421, tmp422, tmp423 };
+enum chips { tmp421, tmp422, tmp423, tmp441, tmp442 };
 
 /* The TMP421 registers */
+#define TMP421_STATUS_REG			0x08
 #define TMP421_CONFIG_REG_1			0x09
 #define TMP421_CONVERSION_RATE_REG		0x0B
 #define TMP421_MANUFACTURER_ID_REG		0xFE
@@ -59,11 +56,15 @@ static const u8 TMP421_TEMP_LSB[4]		= { 0x10, 0x11, 0x12, 0x13 };
 #define TMP421_DEVICE_ID			0x21
 #define TMP422_DEVICE_ID			0x22
 #define TMP423_DEVICE_ID			0x23
+#define TMP441_DEVICE_ID			0x41
+#define TMP442_DEVICE_ID			0x42
 
 static const struct i2c_device_id tmp421_id[] = {
 	{ "tmp421", 2 },
 	{ "tmp422", 3 },
 	{ "tmp423", 4 },
+	{ "tmp441", 2 },
+	{ "tmp442", 3 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tmp421_id);
@@ -234,7 +235,9 @@ static int tmp421_detect(struct i2c_client *client,
 {
 	enum chips kind;
 	struct i2c_adapter *adapter = client->adapter;
-	const char *names[] = { "TMP421", "TMP422", "TMP423" };
+	const char * const names[] = { "TMP421", "TMP422", "TMP423",
+				       "TMP441", "TMP442" };
+	int addr = client->addr;
 	u8 reg;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -244,17 +247,37 @@ static int tmp421_detect(struct i2c_client *client,
 	if (reg != TMP421_MANUFACTURER_ID)
 		return -ENODEV;
 
+	reg = i2c_smbus_read_byte_data(client, TMP421_CONVERSION_RATE_REG);
+	if (reg & 0xf8)
+		return -ENODEV;
+
+	reg = i2c_smbus_read_byte_data(client, TMP421_STATUS_REG);
+	if (reg & 0x7f)
+		return -ENODEV;
+
 	reg = i2c_smbus_read_byte_data(client, TMP421_DEVICE_ID_REG);
 	switch (reg) {
 	case TMP421_DEVICE_ID:
 		kind = tmp421;
 		break;
 	case TMP422_DEVICE_ID:
+		if (addr == 0x2a)
+			return -ENODEV;
 		kind = tmp422;
 		break;
 	case TMP423_DEVICE_ID:
+		if (addr != 0x4c && addr != 0x4d)
+			return -ENODEV;
 		kind = tmp423;
 		break;
+	case TMP441_DEVICE_ID:
+		kind = tmp441;
+		break;
+	case TMP442_DEVICE_ID:
+		if (addr != 0x4c && addr != 0x4d)
+			return -ENODEV;
+		kind = tmp442;
+		break;
 	default:
 		return -ENODEV;
 	}
@@ -305,5 +328,5 @@ static struct i2c_driver tmp421_driver = {
 module_i2c_driver(tmp421_driver);
 
 MODULE_AUTHOR("Andre Prendel <andre.prendel@gmx.de>");
-MODULE_DESCRIPTION("Texas Instruments TMP421/422/423 temperature sensor driver");
+MODULE_DESCRIPTION("Texas Instruments TMP421/422/423/441/442 temperature sensor driver");
 MODULE_LICENSE("GPL");

drivers/hwmon/twl4030-madc-hwmon.c

@@ -74,7 +74,7 @@ static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, madc_read, NULL, 11);
 static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, madc_read, NULL, 12);
 static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, madc_read, NULL, 15);
 
-static struct attribute *twl4030_madc_attributes[] = {
+static struct attribute *twl4030_madc_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_in2_input.dev_attr.attr,
@@ -91,46 +91,20 @@ static struct attribute *twl4030_madc_attributes[] = {
 	&sensor_dev_attr_in15_input.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group twl4030_madc_group = {
-	.attrs = twl4030_madc_attributes,
-};
+ATTRIBUTE_GROUPS(twl4030_madc);
 
 static int twl4030_madc_hwmon_probe(struct platform_device *pdev)
 {
-	int ret;
 	struct device *hwmon;
 
-	ret = sysfs_create_group(&pdev->dev.kobj, &twl4030_madc_group);
-	if (ret)
-		goto err_sysfs;
-	hwmon = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(hwmon)) {
-		dev_err(&pdev->dev, "hwmon_device_register failed.\n");
-		ret = PTR_ERR(hwmon);
-		goto err_reg;
-	}
-
-	return 0;
-
-err_reg:
-	sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group);
-err_sysfs:
-
-	return ret;
-}
-
-static int twl4030_madc_hwmon_remove(struct platform_device *pdev)
-{
-	hwmon_device_unregister(&pdev->dev);
-	sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group);
-
-	return 0;
+	hwmon = devm_hwmon_device_register_with_groups(&pdev->dev,
+						       "twl4030_madc", NULL,
+						       twl4030_madc_groups);
+	return PTR_ERR_OR_ZERO(hwmon);
 }
 
 static struct platform_driver twl4030_madc_hwmon_driver = {
 	.probe = twl4030_madc_hwmon_probe,
-	.remove = twl4030_madc_hwmon_remove,
 	.driver = {
 		   .name = "twl4030_madc_hwmon",
 		   .owner = THIS_MODULE,

drivers/hwmon/w83791d.c

@@ -249,19 +249,16 @@ static u8 fan_to_reg(long rpm, int div)
  * the bottom 7 bits will always be zero
  */
 #define TEMP23_FROM_REG(val)	((val) / 128 * 500)
-#define TEMP23_TO_REG(val)	((val) <= -128000 ? 0x8000 : \
-				 (val) >= 127500 ? 0x7F80 : \
-				 (val) < 0 ? ((val) - 250) / 500 * 128 : \
-				 ((val) + 250) / 500 * 128)
+#define TEMP23_TO_REG(val)	(DIV_ROUND_CLOSEST(clamp_val((val), -128000, \
+						   127500), 500) * 128)
 
 /* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */
-#define TARGET_TEMP_TO_REG(val)		((val) < 0 ? 0 : \
-					(val) >= 127000 ? 127 : \
-					((val) + 500) / 1000)
+#define TARGET_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \
+						  1000)
 
 /* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */
-#define TOL_TEMP_TO_REG(val)		((val) >= 15000 ? 15 : \
-					((val) + 500) / 1000)
+#define TOL_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 15000), \
+						  1000)
 
 #define BEEP_MASK_TO_REG(val)		((val) & 0xffffff)
 #define BEEP_MASK_FROM_REG(val)		((val) & 0xffffff)

drivers/hwmon/w83l786ng.c

@@ -124,7 +124,7 @@ DIV_TO_REG(long val)
 }
 
 struct w83l786ng_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;			/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -148,32 +148,6 @@ struct w83l786ng_data {
 	u8 tolerance[2];
 };
 
-static int w83l786ng_probe(struct i2c_client *client,
-			   const struct i2c_device_id *id);
-static int w83l786ng_detect(struct i2c_client *client,
-			    struct i2c_board_info *info);
-static int w83l786ng_remove(struct i2c_client *client);
-static void w83l786ng_init_client(struct i2c_client *client);
-static struct w83l786ng_data *w83l786ng_update_device(struct device *dev);
-
-static const struct i2c_device_id w83l786ng_id[] = {
-	{ "w83l786ng", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, w83l786ng_id);
-
-static struct i2c_driver w83l786ng_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		   .name = "w83l786ng",
-	},
-	.probe		= w83l786ng_probe,
-	.remove		= w83l786ng_remove,
-	.id_table	= w83l786ng_id,
-	.detect		= w83l786ng_detect,
-	.address_list	= normal_i2c,
-};
-
 static u8
 w83l786ng_read_value(struct i2c_client *client, u8 reg)
 {
@@ -186,6 +160,77 @@ w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
+static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
+{
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i, j;
+	u8 reg_tmp, pwmcfg;
+
+	mutex_lock(&data->update_lock);
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Updating w83l786ng data.\n");
+
+		/* Update the voltages measured value and limits */
+		for (i = 0; i < 3; i++) {
+			data->in[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN(i));
+			data->in_min[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN_MIN(i));
+			data->in_max[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN_MAX(i));
+		}
+
+		/* Update the fan counts and limits */
+		for (i = 0; i < 2; i++) {
+			data->fan[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_FAN(i));
+			data->fan_min[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_FAN_MIN(i));
+		}
+
+		/* Update the fan divisor */
+		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
+		data->fan_div[0] = reg_tmp & 0x07;
+		data->fan_div[1] = (reg_tmp >> 4) & 0x07;
+
+		pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
+		for (i = 0; i < 2; i++) {
+			data->pwm_mode[i] =
+			    ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
+			    ? 0 : 1;
+			data->pwm_enable[i] =
+			    ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1;
+			data->pwm[i] =
+			    (w83l786ng_read_value(client, W83L786NG_REG_PWM[i])
+			     & 0x0f) * 0x11;
+		}
+
+
+		/* Update the temperature sensors */
+		for (i = 0; i < 2; i++) {
+			for (j = 0; j < 3; j++) {
+				data->temp[i][j] = w83l786ng_read_value(client,
+				    W83L786NG_REG_TEMP[i][j]);
+			}
+		}
+
+		/* Update Smart Fan I/II tolerance */
+		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE);
+		data->tolerance[0] = reg_tmp & 0x0f;
+		data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /* following are the sysfs callback functions */
 #define show_in_reg(reg) \
 static ssize_t \
@@ -207,8 +252,8 @@ store_in_##reg(struct device *dev, struct device_attribute *attr, \
 	       const char *buf, size_t count) \
 { \
 	int nr = to_sensor_dev_attr(attr)->index; \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83l786ng_data *data = i2c_get_clientdata(client); \
+	struct w83l786ng_data *data = dev_get_drvdata(dev); \
+	struct i2c_client *client = data->client; \
 	unsigned long val; \
 	int err = kstrtoul(buf, 10, &val); \
 	if (err) \
@@ -260,8 +305,8 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
 	      const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -298,8 +343,8 @@ store_fan_div(struct device *dev, struct device_attribute *attr,
 	      const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	unsigned long min;
 	u8 tmp_fan_div;
@@ -389,8 +434,8 @@ store_temp(struct device *dev, struct device_attribute *attr,
 	    to_sensor_dev_attr_2(attr);
 	int nr = sensor_attr->nr;
 	int index = sensor_attr->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -444,8 +489,8 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
 	       const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 reg;
 	unsigned long val;
 	int err;
@@ -472,8 +517,8 @@ store_pwm(struct device *dev, struct device_attribute *attr,
 	  const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -496,8 +541,8 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
 		 const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 reg;
 	unsigned long val;
 	int err;
@@ -552,8 +597,8 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int nr = to_sensor_dev_attr(attr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	struct w83l786ng_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 tol_tmp, tol_mask;
 	unsigned long val;
 	int err;
@@ -608,7 +653,7 @@ static struct sensor_device_attribute sda_tolerance[] = {
 #define TOLERANCE_UNIT_ATTRS(X)	\
 	&sda_tolerance[X].dev_attr.attr
 
-static struct attribute *w83l786ng_attributes[] = {
+static struct attribute *w83l786ng_attrs[] = {
 	IN_UNIT_ATTRS(0),
 	IN_UNIT_ATTRS(1),
 	IN_UNIT_ATTRS(2),
@@ -623,9 +668,7 @@ static struct attribute *w83l786ng_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group w83l786ng_group = {
-	.attrs = w83l786ng_attributes,
-};
+ATTRIBUTE_GROUPS(w83l786ng);
 
 static int
 w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
@@ -662,20 +705,33 @@ w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return 0;
 }
 
+static void w83l786ng_init_client(struct i2c_client *client)
+{
+	u8 tmp;
+
+	if (reset)
+		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80);
+
+	/* Start monitoring */
+	tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG);
+	if (!(tmp & 0x01))
+		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01);
+}
+
 static int
 w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
 	struct w83l786ng_data *data;
-	int i, err = 0;
+	struct device *hwmon_dev;
+	int i;
 	u8 reg_tmp;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct w83l786ng_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the chip */
@@ -692,121 +748,28 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	data->fan_div[0] = reg_tmp & 0x07;
 	data->fan_div[1] = (reg_tmp >> 4) & 0x07;
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group);
-	if (err)
-		goto exit_remove;
-
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	return 0;
-
-	/* Unregister sysfs hooks */
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
-	return err;
-}
-
-static int
-w83l786ng_remove(struct i2c_client *client)
-{
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   w83l786ng_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static void
-w83l786ng_init_client(struct i2c_client *client)
-{
-	u8 tmp;
-
-	if (reset)
-		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80);
-
-	/* Start monitoring */
-	tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG);
-	if (!(tmp & 0x01))
-		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01);
-}
-
-static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83l786ng_data *data = i2c_get_clientdata(client);
-	int i, j;
-	u8 reg_tmp, pwmcfg;
-
-	mutex_lock(&data->update_lock);
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	    || !data->valid) {
-		dev_dbg(&client->dev, "Updating w83l786ng data.\n");
-
-		/* Update the voltages measured value and limits */
-		for (i = 0; i < 3; i++) {
-			data->in[i] = w83l786ng_read_value(client,
-			    W83L786NG_REG_IN(i));
-			data->in_min[i] = w83l786ng_read_value(client,
-			    W83L786NG_REG_IN_MIN(i));
-			data->in_max[i] = w83l786ng_read_value(client,
-			    W83L786NG_REG_IN_MAX(i));
-		}
-
-		/* Update the fan counts and limits */
-		for (i = 0; i < 2; i++) {
-			data->fan[i] = w83l786ng_read_value(client,
-			    W83L786NG_REG_FAN(i));
-			data->fan_min[i] = w83l786ng_read_value(client,
-			    W83L786NG_REG_FAN_MIN(i));
-		}
-
-		/* Update the fan divisor */
-		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
-		data->fan_div[0] = reg_tmp & 0x07;
-		data->fan_div[1] = (reg_tmp >> 4) & 0x07;
-
-		pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
-		for (i = 0; i < 2; i++) {
-			data->pwm_mode[i] =
-			    ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
-			    ? 0 : 1;
-			data->pwm_enable[i] =
-			    ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1;
-			data->pwm[i] =
-			    (w83l786ng_read_value(client, W83L786NG_REG_PWM[i])
-			     & 0x0f) * 0x11;
-		}
-
-
-		/* Update the temperature sensors */
-		for (i = 0; i < 2; i++) {
-			for (j = 0; j < 3; j++) {
-				data->temp[i][j] = w83l786ng_read_value(client,
-				    W83L786NG_REG_TEMP[i][j]);
-			}
-		}
-
-		/* Update Smart Fan I/II tolerance */
-		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE);
-		data->tolerance[0] = reg_tmp & 0x0f;
-		data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
-
-		data->last_updated = jiffies;
-		data->valid = 1;
-
-	}
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id w83l786ng_id[] = {
+	{ "w83l786ng", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83l786ng_id);
 
-	return data;
-}
+static struct i2c_driver w83l786ng_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		   .name = "w83l786ng",
+	},
+	.probe		= w83l786ng_probe,
+	.id_table	= w83l786ng_id,
+	.detect		= w83l786ng_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(w83l786ng_driver);
 

drivers/hwmon/wm831x-hwmon.c

@@ -29,17 +29,6 @@
 #include <linux/mfd/wm831x/core.h>
 #include <linux/mfd/wm831x/auxadc.h>
 
-struct wm831x_hwmon {
-	struct wm831x *wm831x;
-	struct device *classdev;
-};
-
-static ssize_t show_name(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "wm831x\n");
-}
-
 static const char * const input_names[] = {
 	[WM831X_AUX_SYSVDD]    = "SYSVDD",
 	[WM831X_AUX_USB]       = "USB",
@@ -50,15 +39,14 @@ static const char * const input_names[] = {
 	[WM831X_AUX_BATT_TEMP] = "Battery",
 };
 
-
 static ssize_t show_voltage(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
-	struct wm831x_hwmon *hwmon = dev_get_drvdata(dev);
+	struct wm831x *wm831x = dev_get_drvdata(dev);
 	int channel = to_sensor_dev_attr(attr)->index;
 	int ret;
 
-	ret = wm831x_auxadc_read_uv(hwmon->wm831x, channel);
+	ret = wm831x_auxadc_read_uv(wm831x, channel);
 	if (ret < 0)
 		return ret;
 
@@ -68,11 +56,11 @@ static ssize_t show_voltage(struct device *dev,
 static ssize_t show_chip_temp(struct device *dev,
 			      struct device_attribute *attr, char *buf)
 {
-	struct wm831x_hwmon *hwmon = dev_get_drvdata(dev);
+	struct wm831x *wm831x = dev_get_drvdata(dev);
 	int channel = to_sensor_dev_attr(attr)->index;
 	int ret;
 
-	ret = wm831x_auxadc_read(hwmon->wm831x, channel);
+	ret = wm831x_auxadc_read(wm831x, channel);
 	if (ret < 0)
 		return ret;
 
@@ -100,8 +88,6 @@ static ssize_t show_label(struct device *dev,
 	static SENSOR_DEVICE_ATTR(in##id##_label, S_IRUGO, show_label,	\
 				  NULL, name)
 
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 WM831X_VOLTAGE(0, WM831X_AUX_AUX1);
 WM831X_VOLTAGE(1, WM831X_AUX_AUX2);
 WM831X_VOLTAGE(2, WM831X_AUX_AUX3);
@@ -126,9 +112,7 @@ static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_voltage, NULL,
 static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_label, NULL,
 			  WM831X_AUX_BATT_TEMP);
 
-static struct attribute *wm831x_attributes[] = {
-	&dev_attr_name.attr,
-
+static struct attribute *wm831x_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_in2_input.dev_attr.attr,
@@ -153,55 +137,21 @@ static struct attribute *wm831x_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group wm831x_attr_group = {
-	.attrs	= wm831x_attributes,
-};
+ATTRIBUTE_GROUPS(wm831x);
 
 static int wm831x_hwmon_probe(struct platform_device *pdev)
 {
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
-	struct wm831x_hwmon *hwmon;
-	int ret;
-
-	hwmon = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_hwmon),
-			     GFP_KERNEL);
-	if (!hwmon)
-		return -ENOMEM;
-
-	hwmon->wm831x = wm831x;
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &wm831x_attr_group);
-	if (ret)
-		return ret;
-
-	hwmon->classdev = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(hwmon->classdev)) {
-		ret = PTR_ERR(hwmon->classdev);
-		goto err_sysfs;
-	}
-
-	platform_set_drvdata(pdev, hwmon);
-
-	return 0;
-
-err_sysfs:
-	sysfs_remove_group(&pdev->dev.kobj, &wm831x_attr_group);
-	return ret;
-}
-
-static int wm831x_hwmon_remove(struct platform_device *pdev)
-{
-	struct wm831x_hwmon *hwmon = platform_get_drvdata(pdev);
-
-	hwmon_device_unregister(hwmon->classdev);
-	sysfs_remove_group(&pdev->dev.kobj, &wm831x_attr_group);
+	struct device *hwmon_dev;
 
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, "wm831x",
+							   wm831x,
+							   wm831x_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static struct platform_driver wm831x_hwmon_driver = {
 	.probe = wm831x_hwmon_probe,
-	.remove = wm831x_hwmon_remove,
 	.driver = {
 		.name = "wm831x-hwmon",
 		.owner = THIS_MODULE,

drivers/hwmon/wm8350-hwmon.c

@@ -28,19 +28,12 @@
 #include <linux/mfd/wm8350/core.h>
 #include <linux/mfd/wm8350/comparator.h>
 
-static ssize_t show_name(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "wm8350\n");
-}
-
 static const char * const input_names[] = {
 	[WM8350_AUXADC_USB]  = "USB",
 	[WM8350_AUXADC_LINE] = "Line",
 	[WM8350_AUXADC_BATT] = "Battery",
 };
 
-
 static ssize_t show_voltage(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
@@ -68,15 +61,11 @@ static ssize_t show_label(struct device *dev,
 	static SENSOR_DEVICE_ATTR(in##id##_label, S_IRUGO, show_label,	\
 				  NULL, name)
 
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 WM8350_NAMED_VOLTAGE(0, WM8350_AUXADC_USB);
 WM8350_NAMED_VOLTAGE(1, WM8350_AUXADC_BATT);
 WM8350_NAMED_VOLTAGE(2, WM8350_AUXADC_LINE);
 
-static struct attribute *wm8350_attributes[] = {
-	&dev_attr_name.attr,
-
+static struct attribute *wm8350_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in0_label.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -87,46 +76,21 @@ static struct attribute *wm8350_attributes[] = {
 	NULL,
 };
 
-static const struct attribute_group wm8350_attr_group = {
-	.attrs	= wm8350_attributes,
-};
+ATTRIBUTE_GROUPS(wm8350);
 
 static int wm8350_hwmon_probe(struct platform_device *pdev)
 {
 	struct wm8350 *wm8350 = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &wm8350_attr_group);
-	if (ret)
-		goto err;
-
-	wm8350->hwmon.classdev = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(wm8350->hwmon.classdev)) {
-		ret = PTR_ERR(wm8350->hwmon.classdev);
-		goto err_group;
-	}
-
-	return 0;
-
-err_group:
-	sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group);
-err:
-	return ret;
-}
-
-static int wm8350_hwmon_remove(struct platform_device *pdev)
-{
-	struct wm8350 *wm8350 = platform_get_drvdata(pdev);
-
-	hwmon_device_unregister(wm8350->hwmon.classdev);
-	sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group);
+	struct device *hwmon_dev;
 
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, "wm8350",
+							   wm8350,
+							   wm8350_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static struct platform_driver wm8350_hwmon_driver = {
 	.probe = wm8350_hwmon_probe,
-	.remove = wm8350_hwmon_remove,
 	.driver = {
 		.name = "wm8350-hwmon",
 		.owner = THIS_MODULE,

include/linux/platform_data/ntc_thermistor.h

@@ -26,6 +26,7 @@ struct iio_channel;
 enum ntc_thermistor_type {
 	TYPE_NCPXXWB473,
 	TYPE_NCPXXWL333,
+	TYPE_B57330V2103,
 };
 
 struct ntc_thermistor_platform_data {