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

Pull hwmon updates from Guenter Roeck:
 "New driver for NCT6683D

  New chip support to existing drivers:
   - add support for STTS2004 and AT30TSE004 to jc42 driver
   - add support for EMC1402/EMC1412/EMC1422 to emc1403 driver

  Other notable changes:
   - document hwmon kernel API
   - convert jc42, lm70, lm75, lm77, lm83, lm92, max1619, tmp421, and
     tmp102 drivers to use new hwmon API functions
   - replace function macros in lm80, lm92, and jc42 drivers with real
     code
   - convert emc1403 driver to use regmap, add support for additional
     attributes, and add device IDs for EMC1412, EMC1413, and EMC1414
   - various additional cleanup and minor bug fixes in several drivers"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (60 commits)
  hwmon: (nct6775) Fix probe unwind paths to properly unregister platform devices
  hwmon: (nct6683) Fix probe unwind paths to properly unregister platform devices
  hwmon: (ultra45_env) Introduce managed version of kzalloc
  hwmon: Driver for NCT6683D
  hwmon: (lm80) Rearrange code to avoid forward declarations
  hwmon: (lm80) Convert fan display function macros into functions
  hwmon: (lm80) Convert voltage display function macros into functions
  hwmon: (lm80) Convert temperature display function macros into functions
  hwmon: (lm80) Normalize all temperature values to 16 bit
  hwmon: (lm80) Simplify TEMP_FROM_REG
  hwmon: (lm83) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (lm83) Rearange code to avoid forward declarations
  hwmon: (lm83) Drop FSF address
  hwmon: (max1619) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (max1619) Drop function macros
  hwmon: (max1619) Rearrange code to avoid forward declarations
  hwmon: (max1619) Drop FSF address
  hwmon: (max1619) Fix critical alarm display
  hwmon: (jc42) Add support for STTS2004 and AT30TSE004
  hwmon: (jc42) Convert function macros into functions
  ...

Documentation/hwmon/emc1403

@@ -0,0 +1,59 @@
+Kernel driver emc1403
+=====================
+
+Supported chips:
+  * SMSC / Microchip EMC1402, EMC1412
+    Addresses scanned: I2C 0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c
+    Prefix: 'emc1402'
+    Datasheets:
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1412.pdf
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1402.pdf
+  * SMSC / Microchip EMC1403, EMC1404, EMC1413, EMC1414
+    Addresses scanned: I2C 0x18, 0x29, 0x4c, 0x4d
+    Prefix: 'emc1403', 'emc1404'
+    Datasheets:
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1403_1404.pdf
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1413_1414.pdf
+  * SMSC / Microchip EMC1422
+    Addresses scanned: I2C 0x4c
+    Prefix: 'emc1422'
+    Datasheet:
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1422.pdf
+  * SMSC / Microchip EMC1423, EMC1424
+    Addresses scanned: I2C 0x4c
+    Prefix: 'emc1423', 'emc1424'
+    Datasheet:
+	http://ww1.microchip.com/downloads/en/DeviceDoc/1423_1424.pdf
+
+Author:
+    Kalhan Trisal <kalhan.trisal@intel.com
+
+
+Description
+-----------
+
+The Standard Microsystems Corporation (SMSC) / Microchip EMC14xx chips
+contain up to four temperature sensors. EMC14x2 support two sensors
+(one internal, one external). EMC14x3 support three sensors (one internal,
+two external), and EMC14x4 support four sensors (one internal, three
+external).
+
+The chips implement three limits for each sensor: low (tempX_min), high
+(tempX_max) and critical (tempX_crit.) The chips also implement an
+hysteresis mechanism which applies to all limits. The relative difference
+is stored in a single register on the chip, which means that the relative
+difference between the limit and its hysteresis is always the same for
+all three limits.
+
+This implementation detail implies the following:
+* When setting a limit, its hysteresis will automatically follow, the
+  difference staying unchanged. For example, if the old critical limit
+  was 80 degrees C, and the hysteresis was 75 degrees C, and you change
+  the critical limit to 90 degrees C, then the hysteresis will
+  automatically change to 85 degrees C.
+* The hysteresis values can't be set independently. We decided to make
+  only temp1_crit_hyst writable, while all other hysteresis attributes
+  are read-only. Setting temp1_crit_hyst writes the difference between
+  temp1_crit_hyst and temp1_crit into the chip, and the same relative
+  hysteresis applies automatically to all other limits.
+* The limits should be set before the hysteresis.

Documentation/hwmon/hwmon-kernel-api.txt

@@ -0,0 +1,107 @@
+The Linux Hardware Monitoring kernel API.
+=========================================
+
+Guenter Roeck
+
+Introduction
+------------
+
+This document describes the API that can be used by hardware monitoring
+drivers that want to use the hardware monitoring framework.
+
+This document does not describe what a hardware monitoring (hwmon) Driver or
+Device is. It also does not describe the API which can be used by user space
+to communicate with a hardware monitoring device. If you want to know this
+then please read the following file: Documentation/hwmon/sysfs-interface.
+
+For additional guidelines on how to write and improve hwmon drivers, please
+also read Documentation/hwmon/submitting-patches.
+
+The API
+-------
+Each hardware monitoring driver must #include <linux/hwmon.h> and, in most
+cases, <linux/hwmon-sysfs.h>. linux/hwmon.h declares the following
+register/unregister functions:
+
+struct device *hwmon_device_register(struct device *dev);
+struct device *
+hwmon_device_register_with_groups(struct device *dev, const char *name,
+				  void *drvdata,
+				  const struct attribute_group **groups);
+
+struct device *
+devm_hwmon_device_register_with_groups(struct device *dev,
+				       const char *name, void *drvdata,
+				       const struct attribute_group **groups);
+
+void hwmon_device_unregister(struct device *dev);
+void devm_hwmon_device_unregister(struct device *dev);
+
+hwmon_device_register registers a hardware monitoring device. The parameter
+of this function is a pointer to the parent device.
+This function returns a pointer to the newly created hardware monitoring device
+or PTR_ERR for failure. If this registration function is used, hardware
+monitoring sysfs attributes are expected to have been created and attached to
+the parent device prior to calling hwmon_device_register. A name attribute must
+have been created by the caller.
+
+hwmon_device_register_with_groups is similar to hwmon_device_register. However,
+it has additional parameters. The name parameter is a pointer to the hwmon
+device name. The registration function wil create a name sysfs attribute
+pointing to this name. The drvdata parameter is the pointer to the local
+driver data.  hwmon_device_register_with_groups will attach this pointer
+to the newly allocated hwmon device. The pointer can be retrieved by the driver
+using dev_get_drvdata() on the hwmon device pointer. The groups parameter is
+a pointer to a list of sysfs attribute groups. The list must be NULL terminated.
+hwmon_device_register_with_groups creates the hwmon device with name attribute
+as well as all sysfs attributes attached to the hwmon device.
+
+devm_hwmon_device_register_with_groups is similar to
+hwmon_device_register_with_groups. However, it is device managed, meaning the
+hwmon device does not have to be removed explicitly by the removal function.
+
+hwmon_device_unregister deregisters a registered hardware monitoring device.
+The parameter of this function is the pointer to the registered hardware
+monitoring device structure. This function must be called from the driver
+remove function if the hardware monitoring device was registered with
+hwmon_device_register or with hwmon_device_register_with_groups.
+
+devm_hwmon_device_unregister does not normally have to be called. It is only
+needed for error handling, and only needed if the driver probe fails after
+the call to devm_hwmon_device_register_with_groups.
+
+The header file linux/hwmon-sysfs.h provides a number of useful macros to
+declare and use hardware monitoring sysfs attributes.
+
+In many cases, you can use the exsting define DEVICE_ATTR to declare such
+attributes. This is feasible if an attribute has no additional context. However,
+in many cases there will be additional information such as a sensor index which
+will need to be passed to the sysfs attribute handling function.
+
+SENSOR_DEVICE_ATTR and SENSOR_DEVICE_ATTR_2 can be used to define attributes
+which need such additional context information. SENSOR_DEVICE_ATTR requires
+one additional argument, SENSOR_DEVICE_ATTR_2 requires two.
+
+SENSOR_DEVICE_ATTR defines a struct sensor_device_attribute variable.
+This structure has the following fields.
+
+struct sensor_device_attribute {
+	struct device_attribute dev_attr;
+	int index;
+};
+
+You can use to_sensor_dev_attr to get the pointer to this structure from the
+attribute read or write function. Its parameter is the device to which the
+attribute is attached.
+
+SENSOR_DEVICE_ATTR_2 defines a struct sensor_device_attribute_2 variable,
+which is defined as follows.
+
+struct sensor_device_attribute_2 {
+	struct device_attribute dev_attr;
+	u8 index;
+	u8 nr;
+};
+
+Use to_sensor_dev_attr_2 to get the pointer to this structure. Its parameter
+is the device to which the attribute is attached.

Documentation/hwmon/jc42

@@ -5,9 +5,12 @@ Supported chips:
   * Analog Devices ADT7408
     Datasheets:
 	http://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf
-  * Atmel AT30TS00
+  * Atmel AT30TS00, AT30TS002A/B, AT30TSE004A
     Datasheets:
 	http://www.atmel.com/Images/doc8585.pdf
+	http://www.atmel.com/Images/doc8711.pdf
+	http://www.atmel.com/Images/Atmel-8852-SEEPROM-AT30TSE002A-Datasheet.pdf
+	http://www.atmel.com/Images/Atmel-8868-DTS-AT30TSE004A-Datasheet.pdf
   * IDT TSE2002B3, TSE2002GB2, TS3000B3, TS3000GB2
     Datasheets:
 	http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf
@@ -34,12 +37,13 @@ Supported chips:
     Datasheet:
 	http://www.onsemi.com/pub_link/Collateral/CAT34TS02-D.PDF
 	http://www.onsemi.com/pub/Collateral/CAT6095-D.PDF
-  * ST Microelectronics STTS424, STTS424E02, STTS2002, STTS3000
+  * ST Microelectronics STTS424, STTS424E02, STTS2002, STTS2004, STTS3000
     Datasheets:
-	http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00157556.pdf
-	http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00157558.pdf
-	http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00225278.pdf
-	http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATA_BRIEF/CD00270920.pdf
+	http://www.st.com/web/en/resource/technical/document/datasheet/CD00157556.pdf
+	http://www.st.com/web/en/resource/technical/document/datasheet/CD00157558.pdf
+	http://www.st.com/web/en/resource/technical/document/datasheet/CD00266638.pdf
+	http://www.st.com/web/en/resource/technical/document/datasheet/CD00225278.pdf
+	http://www.st.com/web/en/resource/technical/document/datasheet/DM00076709.pdf
   * JEDEC JC 42.4 compliant temperature sensor chips
     Datasheet:
 	http://www.jedec.org/sites/default/files/docs/4_01_04R19.pdf

Documentation/hwmon/lm77

@@ -18,5 +18,21 @@ sensor incorporates a band-gap type temperature sensor,
 10-bit ADC, and a digital comparator with user-programmable upper
 and lower limit values.
 
-Limits can be set through the Overtemperature Shutdown register and
-Hysteresis register.
+The LM77 implements 3 limits: low (temp1_min), high (temp1_max) and
+critical (temp1_crit.) It also implements an hysteresis mechanism which
+applies to all 3 limits. The relative difference is stored in a single
+register on the chip, which means that the relative difference between
+the limit and its hysteresis is always the same for all 3 limits.
+
+This implementation detail implies the following:
+* When setting a limit, its hysteresis will automatically follow, the
+  difference staying unchanged. For example, if the old critical limit
+  was 80 degrees C, and the hysteresis was 75 degrees C, and you change
+  the critical limit to 90 degrees C, then the hysteresis will
+  automatically change to 85 degrees C.
+* All 3 hysteresis can't be set independently. We decided to make
+  temp1_crit_hyst writable, while temp1_min_hyst and temp1_max_hyst are
+  read-only. Setting temp1_crit_hyst writes the difference between
+  temp1_crit_hyst and temp1_crit into the chip, and the same relative
+  hysteresis applies automatically to the low and high limits.
+* The limits should be set before the hysteresis.

Documentation/hwmon/nct6683

@@ -0,0 +1,57 @@
+Kernel driver nct6683
+=====================
+
+Supported chips:
+  * Nuvoton NCT6683D
+    Prefix: 'nct6683'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+    Datasheet: Available from Nuvoton upon request
+
+Authors:
+        Guenter Roeck <linux@roeck-us.net>
+
+Description
+-----------
+
+This driver implements support for the Nuvoton NCT6683D eSIO chip.
+
+The chips implement up to shared 32 temperature and voltage sensors.
+It supports up to 16 fan rotation sensors and up to 8 fan control engines.
+
+Temperatures are measured in degrees Celsius. Measurement resolution is
+0.5 degrees C.
+
+Voltage sensors (also known as IN sensors) report their values in millivolts.
+
+Fan rotation speeds are reported in RPM (rotations per minute).
+
+Usage Note
+----------
+
+Limit register locations on Intel boards with EC firmware version 1.0
+build date 04/03/13 do not match the register locations in the Nuvoton
+datasheet. Nuvoton confirms that Intel uses a special firmware version
+with different register addresses. The specification describing the Intel
+firmware is held under NDA by Nuvoton and Intel and not available
+to the public.
+
+Some of the register locations can be reverse engineered; others are too
+well hidden. Given this, writing any values from the operating system is
+considered too risky with this firmware and has been disabled. All limits
+must all be written from the BIOS.
+
+The driver has only been tested with the Intel firmware, and by default
+only instantiates on Intel boards. To enable it on non-Intel boards,
+set the 'force' module parameter to 1.
+
+Tested Boards and Firmware Versions
+-----------------------------------
+
+The driver has been reported to work with the following boards and
+firmware versions.
+
+Board		Firmware version
+---------------------------------------------------------------
+Intel DH87RL	NCT6683D EC firmware version 1.0 build 04/03/13
+Intel DH87MC	NCT6683D EC firmware version 1.0 build 04/03/13
+Intel DB85FL	NCT6683D EC firmware version 1.0 build 04/03/13

MAINTAINERS

@@ -355,7 +355,7 @@ F:	Documentation/hwmon/adm1025
 F:	drivers/hwmon/adm1025.c
 
 ADM1029 HARDWARE MONITOR DRIVER
-M:	Corentin Labbe <corentin.labbe@geomatys.fr>
+M:	Corentin Labbe <clabbe.montjoie@gmail.com>
 L:	lm-sensors@lm-sensors.org
 S:	Maintained
 F:	drivers/hwmon/adm1029.c

drivers/hwmon/Kconfig

@@ -1065,6 +1065,16 @@ config SENSORS_NTC_THERMISTOR
 	  This driver can also be built as a module.  If so, the module
 	  will be called ntc-thermistor.
 
+config SENSORS_NCT6683
+	tristate "Nuvoton NCT6683D"
+	depends on !PPC
+	help
+	  If you say yes here you get support for the hardware monitoring
+	  functionality of the Nuvoton NCT6683D eSIO chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called nct6683.
+
 config SENSORS_NCT6775
 	tristate "Nuvoton NCT6775F and compatibles"
 	depends on !PPC

drivers/hwmon/Makefile

@@ -114,6 +114,7 @@ obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
 obj-$(CONFIG_SENSORS_MAX6697)	+= max6697.o
 obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o
 obj-$(CONFIG_SENSORS_MCP3021)	+= mcp3021.o
+obj-$(CONFIG_SENSORS_NCT6683)	+= nct6683.o
 obj-$(CONFIG_SENSORS_NCT6775)	+= nct6775.o
 obj-$(CONFIG_SENSORS_NTC_THERMISTOR)	+= ntc_thermistor.o
 obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o

drivers/hwmon/adm1029.c

@@ -1,7 +1,7 @@
 /*
  * adm1029.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
  *
- * Copyright (C) 2006 Corentin LABBE <corentin.labbe@geomatys.fr>
+ * Copyright (C) 2006 Corentin LABBE <clabbe.montjoie@gmail.com>
  *
  * Based on LM83 Driver by Jean Delvare <jdelvare@suse.de>
  *
@@ -449,6 +449,6 @@ static struct adm1029_data *adm1029_update_device(struct device *dev)
 
 module_i2c_driver(adm1029_driver);
 
-MODULE_AUTHOR("Corentin LABBE <corentin.labbe@geomatys.fr>");
+MODULE_AUTHOR("Corentin LABBE <clabbe.montjoie@gmail.com>");
 MODULE_DESCRIPTION("adm1029 driver");
 MODULE_LICENSE("GPL v2");

drivers/hwmon/emc1403.c

@@ -18,9 +18,6 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * TODO
- *	-	cache alarm and critical limit registers
  */
 
 #include <linux/module.h>
@@ -32,22 +29,18 @@
 #include <linux/err.h>
 #include <linux/sysfs.h>
 #include <linux/mutex.h>
-#include <linux/jiffies.h>
+#include <linux/regmap.h>
 
 #define THERMAL_PID_REG		0xfd
 #define THERMAL_SMSC_ID_REG	0xfe
 #define THERMAL_REVISION_REG	0xff
 
+enum emc1403_chip { emc1402, emc1403, emc1404 };
+
 struct thermal_data {
-	struct i2c_client *client;
-	const struct attribute_group *groups[3];
+	struct regmap *regmap;
 	struct mutex mutex;
-	/*
-	 * Cache the hyst value so we don't keep re-reading it. In theory
-	 * we could cache it forever as nobody else should be writing it.
-	 */
-	u8 cached_hyst;
-	unsigned long hyst_valid;
+	const struct attribute_group *groups[4];
 };
 
 static ssize_t show_temp(struct device *dev,
@@ -55,12 +48,13 @@ static ssize_t show_temp(struct device *dev,
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
 	struct thermal_data *data = dev_get_drvdata(dev);
+	unsigned int val;
 	int retval;
 
-	retval = i2c_smbus_read_byte_data(data->client, sda->index);
+	retval = regmap_read(data->regmap, sda->index, &val);
 	if (retval < 0)
 		return retval;
-	return sprintf(buf, "%d000\n", retval);
+	return sprintf(buf, "%d000\n", val);
 }
 
 static ssize_t show_bit(struct device *dev,
@@ -68,12 +62,13 @@ static ssize_t show_bit(struct device *dev,
 {
 	struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
 	struct thermal_data *data = dev_get_drvdata(dev);
+	unsigned int val;
 	int retval;
 
-	retval = i2c_smbus_read_byte_data(data->client, sda->nr);
+	retval = regmap_read(data->regmap, sda->nr, &val);
 	if (retval < 0)
 		return retval;
-	return sprintf(buf, "%d\n", !!(retval & sda->index));
+	return sprintf(buf, "%d\n", !!(val & sda->index));
 }
 
 static ssize_t store_temp(struct device *dev,
@@ -86,8 +81,8 @@ static ssize_t store_temp(struct device *dev,
 
 	if (kstrtoul(buf, 10, &val))
 		return -EINVAL;
-	retval = i2c_smbus_write_byte_data(data->client, sda->index,
-					DIV_ROUND_CLOSEST(val, 1000));
+	retval = regmap_write(data->regmap, sda->index,
+			      DIV_ROUND_CLOSEST(val, 1000));
 	if (retval < 0)
 		return retval;
 	return count;
@@ -98,51 +93,51 @@ static ssize_t store_bit(struct device *dev,
 {
 	struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
 	struct thermal_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
 	unsigned long val;
 	int retval;
 
 	if (kstrtoul(buf, 10, &val))
 		return -EINVAL;
 
-	mutex_lock(&data->mutex);
-	retval = i2c_smbus_read_byte_data(client, sda->nr);
+	retval = regmap_update_bits(data->regmap, sda->nr, sda->index,
+				    val ? sda->index : 0);
 	if (retval < 0)
-		goto fail;
-
-	retval &= ~sda->index;
-	if (val)
-		retval |= sda->index;
-
-	retval = i2c_smbus_write_byte_data(client, sda->index, retval);
-	if (retval == 0)
-		retval = count;
-fail:
-	mutex_unlock(&data->mutex);
-	return retval;
+		return retval;
+	return count;
 }
 
-static ssize_t show_hyst(struct device *dev,
-			struct device_attribute *attr, char *buf)
+static ssize_t show_hyst_common(struct device *dev,
+				struct device_attribute *attr, char *buf,
+				bool is_min)
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
 	struct thermal_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
+	struct regmap *regmap = data->regmap;
+	unsigned int limit;
+	unsigned int hyst;
 	int retval;
-	int hyst;
 
-	retval = i2c_smbus_read_byte_data(client, sda->index);
+	retval = regmap_read(regmap, sda->index, &limit);
 	if (retval < 0)
 		return retval;
 
-	if (time_after(jiffies, data->hyst_valid)) {
-		hyst = i2c_smbus_read_byte_data(client, 0x21);
-		if (hyst < 0)
-			return retval;
-		data->cached_hyst = hyst;
-		data->hyst_valid = jiffies + HZ;
-	}
-	return sprintf(buf, "%d000\n", retval - data->cached_hyst);
+	retval = regmap_read(regmap, 0x21, &hyst);
+	if (retval < 0)
+		return retval;
+
+	return sprintf(buf, "%d000\n", is_min ? limit + hyst : limit - hyst);
+}
+
+static ssize_t show_hyst(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	return show_hyst_common(dev, attr, buf, false);
+}
+
+static ssize_t show_min_hyst(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	return show_hyst_common(dev, attr, buf, true);
 }
 
 static ssize_t store_hyst(struct device *dev,
@@ -150,7 +145,8 @@ static ssize_t store_hyst(struct device *dev,
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
 	struct thermal_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
+	struct regmap *regmap = data->regmap;
+	unsigned int limit;
 	int retval;
 	int hyst;
 	unsigned long val;
@@ -159,23 +155,15 @@ static ssize_t store_hyst(struct device *dev,
 		return -EINVAL;
 
 	mutex_lock(&data->mutex);
-	retval = i2c_smbus_read_byte_data(client, sda->index);
+	retval = regmap_read(regmap, sda->index, &limit);
 	if (retval < 0)
 		goto fail;
 
-	hyst = retval * 1000 - val;
-	hyst = DIV_ROUND_CLOSEST(hyst, 1000);
-	if (hyst < 0 || hyst > 255) {
-		retval = -ERANGE;
-		goto fail;
-	}
-
-	retval = i2c_smbus_write_byte_data(client, 0x21, hyst);
-	if (retval == 0) {
+	hyst = limit * 1000 - val;
+	hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255);
+	retval = regmap_write(regmap, 0x21, hyst);
+	if (retval == 0)
 		retval = count;
-		data->cached_hyst = hyst;
-		data->hyst_valid = jiffies + HZ;
-	}
 fail:
 	mutex_unlock(&data->mutex);
 	return retval;
@@ -198,6 +186,8 @@ static SENSOR_DEVICE_ATTR_2(temp1_max_alarm, S_IRUGO,
 	show_bit, NULL, 0x35, 0x01);
 static SENSOR_DEVICE_ATTR_2(temp1_crit_alarm, S_IRUGO,
 	show_bit, NULL, 0x37, 0x01);
+static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x06);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_hyst, NULL, 0x05);
 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO | S_IWUSR,
 	show_hyst, store_hyst, 0x20);
 
@@ -208,14 +198,16 @@ static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
 static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
 	show_temp, store_temp, 0x19);
 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0x01);
+static SENSOR_DEVICE_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x02);
 static SENSOR_DEVICE_ATTR_2(temp2_min_alarm, S_IRUGO,
 	show_bit, NULL, 0x36, 0x02);
 static SENSOR_DEVICE_ATTR_2(temp2_max_alarm, S_IRUGO,
 	show_bit, NULL, 0x35, 0x02);
 static SENSOR_DEVICE_ATTR_2(temp2_crit_alarm, S_IRUGO,
 	show_bit, NULL, 0x37, 0x02);
-static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO | S_IWUSR,
-	show_hyst, store_hyst, 0x19);
+static SENSOR_DEVICE_ATTR(temp2_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x08);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO, show_hyst, NULL, 0x07);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_hyst, NULL, 0x19);
 
 static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO | S_IWUSR,
 	show_temp, store_temp, 0x16);
@@ -224,14 +216,16 @@ static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
 static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
 	show_temp, store_temp, 0x1A);
 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 0x23);
+static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x04);
 static SENSOR_DEVICE_ATTR_2(temp3_min_alarm, S_IRUGO,
 	show_bit, NULL, 0x36, 0x04);
 static SENSOR_DEVICE_ATTR_2(temp3_max_alarm, S_IRUGO,
 	show_bit, NULL, 0x35, 0x04);
 static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO,
 	show_bit, NULL, 0x37, 0x04);
-static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR,
-	show_hyst, store_hyst, 0x1A);
+static SENSOR_DEVICE_ATTR(temp3_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x16);
+static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO, show_hyst, NULL, 0x15);
+static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_hyst, NULL, 0x1A);
 
 static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO | S_IWUSR,
 	show_temp, store_temp, 0x2D);
@@ -240,44 +234,66 @@ static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO | S_IWUSR,
 static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
 	show_temp, store_temp, 0x30);
 static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 0x2A);
+static SENSOR_DEVICE_ATTR_2(temp4_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x08);
 static SENSOR_DEVICE_ATTR_2(temp4_min_alarm, S_IRUGO,
 	show_bit, NULL, 0x36, 0x08);
 static SENSOR_DEVICE_ATTR_2(temp4_max_alarm, S_IRUGO,
 	show_bit, NULL, 0x35, 0x08);
 static SENSOR_DEVICE_ATTR_2(temp4_crit_alarm, S_IRUGO,
 	show_bit, NULL, 0x37, 0x08);
-static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO | S_IWUSR,
-	show_hyst, store_hyst, 0x30);
+static SENSOR_DEVICE_ATTR(temp4_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x2D);
+static SENSOR_DEVICE_ATTR(temp4_max_hyst, S_IRUGO, show_hyst, NULL, 0x2C);
+static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO, show_hyst, NULL, 0x30);
 
 static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR,
 	show_bit, store_bit, 0x03, 0x40);
 
-static struct attribute *emc1403_attrs[] = {
+static struct attribute *emc1402_attrs[] = {
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
-	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
-	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
-	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+
 	&sensor_dev_attr_temp2_min.dev_attr.attr,
 	&sensor_dev_attr_temp2_max.dev_attr.attr,
 	&sensor_dev_attr_temp2_crit.dev_attr.attr,
 	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+
+	&sensor_dev_attr_power_state.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group emc1402_group = {
+		.attrs = emc1402_attrs,
+};
+
+static struct attribute *emc1403_attrs[] = {
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
 	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
-	&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+
 	&sensor_dev_attr_temp3_min.dev_attr.attr,
 	&sensor_dev_attr_temp3_max.dev_attr.attr,
 	&sensor_dev_attr_temp3_crit.dev_attr.attr,
 	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
 	&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
-	&sensor_dev_attr_power_state.dev_attr.attr,
 	NULL
 };
 
@@ -290,9 +306,12 @@ static struct attribute *emc1404_attrs[] = {
 	&sensor_dev_attr_temp4_max.dev_attr.attr,
 	&sensor_dev_attr_temp4_crit.dev_attr.attr,
 	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_fault.dev_attr.attr,
 	&sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp4_crit_hyst.dev_attr.attr,
 	NULL
 };
@@ -301,6 +320,39 @@ static const struct attribute_group emc1404_group = {
 	.attrs = emc1404_attrs,
 };
 
+/*
+ * EMC14x2 uses a different register and different bits to report alarm and
+ * fault status. For simplicity, provide a separate attribute group for this
+ * chip series.
+ * Since we can not re-use the same attribute names, create a separate attribute
+ * array.
+ */
+static struct sensor_device_attribute_2 emc1402_alarms[] = {
+	SENSOR_ATTR_2(temp1_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x20),
+	SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x40),
+	SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x01),
+
+	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x02, 0x04),
+	SENSOR_ATTR_2(temp2_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x08),
+	SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x10),
+	SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x02),
+};
+
+static struct attribute *emc1402_alarm_attrs[] = {
+	&emc1402_alarms[0].dev_attr.attr,
+	&emc1402_alarms[1].dev_attr.attr,
+	&emc1402_alarms[2].dev_attr.attr,
+	&emc1402_alarms[3].dev_attr.attr,
+	&emc1402_alarms[4].dev_attr.attr,
+	&emc1402_alarms[5].dev_attr.attr,
+	&emc1402_alarms[6].dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group emc1402_alarm_group = {
+	.attrs = emc1402_alarm_attrs,
+};
+
 static int emc1403_detect(struct i2c_client *client,
 			struct i2c_board_info *info)
 {
@@ -313,9 +365,15 @@ static int emc1403_detect(struct i2c_client *client,
 
 	id = i2c_smbus_read_byte_data(client, THERMAL_PID_REG);
 	switch (id) {
+	case 0x20:
+		strlcpy(info->type, "emc1402", I2C_NAME_SIZE);
+		break;
 	case 0x21:
 		strlcpy(info->type, "emc1403", I2C_NAME_SIZE);
 		break;
+	case 0x22:
+		strlcpy(info->type, "emc1422", I2C_NAME_SIZE);
+		break;
 	case 0x23:
 		strlcpy(info->type, "emc1423", I2C_NAME_SIZE);
 		break;
@@ -336,6 +394,35 @@ static int emc1403_detect(struct i2c_client *client,
 	return 0;
 }
 
+static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0x00:	/* internal diode high byte */
+	case 0x01:	/* external diode 1 high byte */
+	case 0x02:	/* status */
+	case 0x10:	/* external diode 1 low byte */
+	case 0x1b:	/* external diode fault */
+	case 0x23:	/* external diode 2 high byte */
+	case 0x24:	/* external diode 2 low byte */
+	case 0x29:	/* internal diode low byte */
+	case 0x2a:	/* externl diode 3 high byte */
+	case 0x2b:	/* external diode 3 low byte */
+	case 0x35:	/* high limit status */
+	case 0x36:	/* low limit status */
+	case 0x37:	/* therm limit status */
+		return true;
+	default:
+		return false;
+	}
+}
+
+static struct regmap_config emc1403_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = emc1403_regmap_is_volatile,
+};
+
 static int emc1403_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -347,13 +434,23 @@ static int emc1403_probe(struct i2c_client *client,
 	if (data == NULL)
 		return -ENOMEM;
 
-	data->client = client;
+	data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config);
+	if (IS_ERR(data->regmap))
+		return PTR_ERR(data->regmap);
+
 	mutex_init(&data->mutex);
-	data->hyst_valid = jiffies - 1;		/* Expired */
 
-	data->groups[0] = &emc1403_group;
-	if (id->driver_data)
-		data->groups[1] = &emc1404_group;
+	switch (id->driver_data) {
+	case emc1404:
+		data->groups[2] = &emc1404_group;
+	case emc1403:
+		data->groups[1] = &emc1403_group;
+	case emc1402:
+		data->groups[0] = &emc1402_group;
+	}
+
+	if (id->driver_data == emc1402)
+		data->groups[1] = &emc1402_alarm_group;
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
 							   client->name, data,
@@ -366,14 +463,20 @@ static int emc1403_probe(struct i2c_client *client,
 }
 
 static const unsigned short emc1403_address_list[] = {
-	0x18, 0x29, 0x4c, 0x4d, I2C_CLIENT_END
+	0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
 };
 
+/* Last digit of chip name indicates number of channels */
 static const struct i2c_device_id emc1403_idtable[] = {
-	{ "emc1403", 0 },
-	{ "emc1404", 1 },
-	{ "emc1423", 0 },
-	{ "emc1424", 1 },
+	{ "emc1402", emc1402 },
+	{ "emc1403", emc1403 },
+	{ "emc1404", emc1404 },
+	{ "emc1412", emc1402 },
+	{ "emc1413", emc1403 },
+	{ "emc1414", emc1404 },
+	{ "emc1422", emc1402 },
+	{ "emc1423", emc1403 },
+	{ "emc1424", emc1404 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, emc1403_idtable);

drivers/hwmon/f71805f.c

@@ -1387,10 +1387,8 @@ static int f71805f_probe(struct platform_device *pdev)
 
 	data = devm_kzalloc(&pdev->dev, sizeof(struct f71805f_data),
 			    GFP_KERNEL);
-	if (!data) {
-		pr_err("Out of memory\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!devm_request_region(&pdev->dev, res->start + ADDR_REG_OFFSET, 2,

drivers/hwmon/g762.c

@@ -586,7 +586,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val)
  */
 
 #ifdef CONFIG_OF
-static struct of_device_id g762_dt_match[] = {
+static const struct of_device_id g762_dt_match[] = {
 	{ .compatible = "gmt,g762" },
 	{ .compatible = "gmt,g763" },
 	{ },

drivers/hwmon/gpio-fan.c

@@ -482,7 +482,7 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 	return 0;
 }
 
-static struct of_device_id of_gpio_fan_match[] = {
+static const struct of_device_id of_gpio_fan_match[] = {
 	{ .compatible = "gpio-fan", },
 	{},
 };

drivers/hwmon/ibmpex.c

@@ -463,10 +463,8 @@ static void ibmpex_register_bmc(int iface, struct device *dev)
 	int err;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		dev_err(dev, "Insufficient memory for BMC interface.\n");
+	if (!data)
 		return;
-	}
 
 	data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
 	data->address.channel = IPMI_BMC_CHANNEL;

drivers/hwmon/iio_hwmon.c

@@ -163,7 +163,7 @@ static int iio_hwmon_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id iio_hwmon_of_match[] = {
+static const struct of_device_id iio_hwmon_of_match[] = {
 	{ .compatible = "iio-hwmon", },
 	{ }
 };

drivers/hwmon/jc42.c

@@ -65,6 +65,7 @@ static const unsigned short normal_i2c[] = {
 /* Manufacturer IDs */
 #define ADT_MANID		0x11d4  /* Analog Devices */
 #define ATMEL_MANID		0x001f  /* Atmel */
+#define ATMEL_MANID2		0x1114	/* Atmel */
 #define MAX_MANID		0x004d  /* Maxim */
 #define IDT_MANID		0x00b3  /* IDT */
 #define MCP_MANID		0x0054  /* Microchip */
@@ -82,6 +83,9 @@ static const unsigned short normal_i2c[] = {
 #define AT30TS00_DEVID		0x8201
 #define AT30TS00_DEVID_MASK	0xffff
 
+#define AT30TSE004_DEVID	0x2200
+#define AT30TSE004_DEVID_MASK	0xffff
+
 /* IDT */
 #define TS3000B3_DEVID		0x2903  /* Also matches TSE2002B3 */
 #define TS3000B3_DEVID_MASK	0xffff
@@ -130,6 +134,9 @@ static const unsigned short normal_i2c[] = {
 #define STTS2002_DEVID		0x0300
 #define STTS2002_DEVID_MASK	0xffff
 
+#define STTS2004_DEVID		0x2201
+#define STTS2004_DEVID_MASK	0xffff
+
 #define STTS3000_DEVID		0x0200
 #define STTS3000_DEVID_MASK	0xffff
 
@@ -144,6 +151,7 @@ struct jc42_chips {
 static struct jc42_chips jc42_chips[] = {
 	{ ADT_MANID, ADT7408_DEVID, ADT7408_DEVID_MASK },
 	{ ATMEL_MANID, AT30TS00_DEVID, AT30TS00_DEVID_MASK },
+	{ ATMEL_MANID2, AT30TSE004_DEVID, AT30TSE004_DEVID_MASK },
 	{ IDT_MANID, TS3000B3_DEVID, TS3000B3_DEVID_MASK },
 	{ IDT_MANID, TS3000GB2_DEVID, TS3000GB2_DEVID_MASK },
 	{ MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK },
@@ -158,9 +166,25 @@ static struct jc42_chips jc42_chips[] = {
 	{ STM_MANID, STTS424_DEVID, STTS424_DEVID_MASK },
 	{ STM_MANID, STTS424E_DEVID, STTS424E_DEVID_MASK },
 	{ STM_MANID, STTS2002_DEVID, STTS2002_DEVID_MASK },
+	{ STM_MANID, STTS2004_DEVID, STTS2004_DEVID_MASK },
 	{ STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK },
 };
 
+enum temp_index {
+	t_input = 0,
+	t_crit,
+	t_min,
+	t_max,
+	t_num_temp
+};
+
+static const u8 temp_regs[t_num_temp] = {
+	[t_input] = JC42_REG_TEMP,
+	[t_crit] = JC42_REG_TEMP_CRITICAL,
+	[t_min] = JC42_REG_TEMP_LOWER,
+	[t_max] = JC42_REG_TEMP_UPPER,
+};
+
 /* Each client has this additional data */
 struct jc42_data {
 	struct i2c_client *client;
@@ -170,69 +194,7 @@ struct jc42_data {
 	unsigned long	last_updated;	/* In jiffies */
 	u16		orig_config;	/* original configuration */
 	u16		config;		/* current configuration */
-	u16		temp_input;	/* Temperatures */
-	u16		temp_crit;
-	u16		temp_min;
-	u16		temp_max;
-};
-
-static int jc42_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id);
-static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info);
-static int jc42_remove(struct i2c_client *client);
-
-static struct jc42_data *jc42_update_device(struct device *dev);
-
-static const struct i2c_device_id jc42_id[] = {
-	{ "jc42", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, jc42_id);
-
-#ifdef CONFIG_PM
-
-static int jc42_suspend(struct device *dev)
-{
-	struct jc42_data *data = dev_get_drvdata(dev);
-
-	data->config |= JC42_CFG_SHUTDOWN;
-	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
-				     data->config);
-	return 0;
-}
-
-static int jc42_resume(struct device *dev)
-{
-	struct jc42_data *data = dev_get_drvdata(dev);
-
-	data->config &= ~JC42_CFG_SHUTDOWN;
-	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
-				     data->config);
-	return 0;
-}
-
-static const struct dev_pm_ops jc42_dev_pm_ops = {
-	.suspend = jc42_suspend,
-	.resume = jc42_resume,
-};
-
-#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops)
-#else
-#define JC42_DEV_PM_OPS NULL
-#endif /* CONFIG_PM */
-
-/* This is the driver that will be inserted */
-static struct i2c_driver jc42_driver = {
-	.class		= I2C_CLASS_SPD,
-	.driver = {
-		.name	= "jc42",
-		.pm = JC42_DEV_PM_OPS,
-	},
-	.probe		= jc42_probe,
-	.remove		= jc42_remove,
-	.id_table	= jc42_id,
-	.detect		= jc42_detect,
-	.address_list	= normal_i2c,
+	u16		temp[t_num_temp];/* Temperatures */
 };
 
 #define JC42_TEMP_MIN_EXTENDED	(-40000)
@@ -261,79 +223,81 @@ static int jc42_temp_from_reg(s16 reg)
 	return reg * 125 / 2;
 }
 
-/* sysfs stuff */
-
-/* read routines for temperature limits */
-#define show(value)	\
-static ssize_t show_##value(struct device *dev,				\
-			    struct device_attribute *attr,		\
-			    char *buf)					\
-{									\
-	struct jc42_data *data = jc42_update_device(dev);		\
-	if (IS_ERR(data))						\
-		return PTR_ERR(data);					\
-	return sprintf(buf, "%d\n", jc42_temp_from_reg(data->value));	\
+static struct jc42_data *jc42_update_device(struct device *dev)
+{
+	struct jc42_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	struct jc42_data *ret = data;
+	int i, val;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		for (i = 0; i < t_num_temp; i++) {
+			val = i2c_smbus_read_word_swapped(client, temp_regs[i]);
+			if (val < 0) {
+				ret = ERR_PTR(val);
+				goto abort;
+			}
+			data->temp[i] = val;
+		}
+		data->last_updated = jiffies;
+		data->valid = true;
+	}
+abort:
+	mutex_unlock(&data->update_lock);
+	return ret;
 }
 
-show(temp_input);
-show(temp_crit);
-show(temp_min);
-show(temp_max);
+/* sysfs functions */
 
-/* read routines for hysteresis values */
-static ssize_t show_temp_crit_hyst(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct jc42_data *data = jc42_update_device(dev);
-	int temp, hyst;
-
 	if (IS_ERR(data))
 		return PTR_ERR(data);
-
-	temp = jc42_temp_from_reg(data->temp_crit);
-	hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
-			       >> JC42_CFG_HYST_SHIFT];
-	return sprintf(buf, "%d\n", temp - hyst);
+	return sprintf(buf, "%d\n",
+		       jc42_temp_from_reg(data->temp[attr->index]));
 }
 
-static ssize_t show_temp_max_hyst(struct device *dev,
-				  struct device_attribute *attr, char *buf)
+static ssize_t show_temp_hyst(struct device *dev,
+			      struct device_attribute *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct jc42_data *data = jc42_update_device(dev);
 	int temp, hyst;
 
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
-	temp = jc42_temp_from_reg(data->temp_max);
+	temp = jc42_temp_from_reg(data->temp[attr->index]);
 	hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
 			       >> JC42_CFG_HYST_SHIFT];
 	return sprintf(buf, "%d\n", temp - hyst);
 }
 
-/* write routines */
-#define set(value, reg)	\
-static ssize_t set_##value(struct device *dev,				\
-			   struct device_attribute *attr,		\
-			   const char *buf, size_t count)		\
-{									\
-	struct jc42_data *data = dev_get_drvdata(dev);			\
-	int err, ret = count;						\
-	long val;							\
-	if (kstrtol(buf, 10, &val) < 0)					\
-		return -EINVAL;						\
-	mutex_lock(&data->update_lock);					\
-	data->value = jc42_temp_to_reg(val, data->extended);		\
-	err = i2c_smbus_write_word_swapped(data->client, reg, data->value); \
-	if (err < 0)							\
-		ret = err;						\
-	mutex_unlock(&data->update_lock);				\
-	return ret;							\
-}
+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 jc42_data *data = dev_get_drvdata(dev);
+	int err, ret = count;
+	int nr = attr->index;
+	long val;
 
-set(temp_min, JC42_REG_TEMP_LOWER);
-set(temp_max, JC42_REG_TEMP_UPPER);
-set(temp_crit, JC42_REG_TEMP_CRITICAL);
+	if (kstrtol(buf, 10, &val) < 0)
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = jc42_temp_to_reg(val, data->extended);
+	err = i2c_smbus_write_word_swapped(data->client, temp_regs[nr],
+					   data->temp[nr]);
+	if (err < 0)
+		ret = err;
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
 
 /*
  * JC42.4 compliant chips only support four hysteresis values.
@@ -352,7 +316,7 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
 	if (kstrtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 
-	diff = jc42_temp_from_reg(data->temp_crit) - val;
+	diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
 	hyst = 0;
 	if (diff > 0) {
 		if (diff < 2250)
@@ -384,25 +348,20 @@ static ssize_t show_alarm(struct device *dev,
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
-	val = data->temp_input;
+	val = data->temp[t_input];
 	if (bit != JC42_ALARM_CRIT_BIT && (data->config & JC42_CFG_CRIT_ONLY))
 		val = 0;
 	return sprintf(buf, "%u\n", (val >> bit) & 1);
 }
 
-static DEVICE_ATTR(temp1_input, S_IRUGO,
-		   show_temp_input, NULL);
-static DEVICE_ATTR(temp1_crit, S_IRUGO,
-		   show_temp_crit, set_temp_crit);
-static DEVICE_ATTR(temp1_min, S_IRUGO,
-		   show_temp_min, set_temp_min);
-static DEVICE_ATTR(temp1_max, S_IRUGO,
-		   show_temp_max, set_temp_max);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, set_temp, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, set_temp, t_min);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, set_temp, t_max);
 
-static DEVICE_ATTR(temp1_crit_hyst, S_IRUGO,
-		   show_temp_crit_hyst, set_temp_crit_hyst);
-static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
-		   show_temp_max_hyst, NULL);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_hyst,
+			  set_temp_crit_hyst, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
 
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL,
 			  JC42_ALARM_CRIT_BIT);
@@ -412,12 +371,12 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
 			  JC42_ALARM_MAX_BIT);
 
 static struct attribute *jc42_attributes[] = {
-	&dev_attr_temp1_input.attr,
-	&dev_attr_temp1_crit.attr,
-	&dev_attr_temp1_min.attr,
-	&dev_attr_temp1_max.attr,
-	&dev_attr_temp1_crit_hyst.attr,
-	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
@@ -432,12 +391,12 @@ static umode_t jc42_attribute_mode(struct kobject *kobj,
 	unsigned int config = data->config;
 	bool readonly;
 
-	if (attr == &dev_attr_temp1_crit.attr)
+	if (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr)
 		readonly = config & JC42_CFG_TCRIT_LOCK;
-	else if (attr == &dev_attr_temp1_min.attr ||
-		 attr == &dev_attr_temp1_max.attr)
+	else if (attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
+		 attr == &sensor_dev_attr_temp1_max.dev_attr.attr)
 		readonly = config & JC42_CFG_EVENT_LOCK;
-	else if (attr == &dev_attr_temp1_crit_hyst.attr)
+	else if (attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr)
 		readonly = config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK);
 	else
 		readonly = true;
@@ -537,52 +496,56 @@ static int jc42_remove(struct i2c_client *client)
 	return 0;
 }
 
-static struct jc42_data *jc42_update_device(struct device *dev)
+#ifdef CONFIG_PM
+
+static int jc42_suspend(struct device *dev)
 {
 	struct jc42_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
-	struct jc42_data *ret = data;
-	int val;
 
-	mutex_lock(&data->update_lock);
+	data->config |= JC42_CFG_SHUTDOWN;
+	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
+				     data->config);
+	return 0;
+}
 
-	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
-		val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP);
-		if (val < 0) {
-			ret = ERR_PTR(val);
-			goto abort;
-		}
-		data->temp_input = val;
+static int jc42_resume(struct device *dev)
+{
+	struct jc42_data *data = dev_get_drvdata(dev);
 
-		val = i2c_smbus_read_word_swapped(client,
-						  JC42_REG_TEMP_CRITICAL);
-		if (val < 0) {
-			ret = ERR_PTR(val);
-			goto abort;
-		}
-		data->temp_crit = val;
+	data->config &= ~JC42_CFG_SHUTDOWN;
+	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
+				     data->config);
+	return 0;
+}
 
-		val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_LOWER);
-		if (val < 0) {
-			ret = ERR_PTR(val);
-			goto abort;
-		}
-		data->temp_min = val;
+static const struct dev_pm_ops jc42_dev_pm_ops = {
+	.suspend = jc42_suspend,
+	.resume = jc42_resume,
+};
 
-		val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_UPPER);
-		if (val < 0) {
-			ret = ERR_PTR(val);
-			goto abort;
-		}
-		data->temp_max = val;
+#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops)
+#else
+#define JC42_DEV_PM_OPS NULL
+#endif /* CONFIG_PM */
 
-		data->last_updated = jiffies;
-		data->valid = true;
-	}
-abort:
-	mutex_unlock(&data->update_lock);
-	return ret;
-}
+static const struct i2c_device_id jc42_id[] = {
+	{ "jc42", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, jc42_id);
+
+static struct i2c_driver jc42_driver = {
+	.class		= I2C_CLASS_SPD,
+	.driver = {
+		.name	= "jc42",
+		.pm = JC42_DEV_PM_OPS,
+	},
+	.probe		= jc42_probe,
+	.remove		= jc42_remove,
+	.id_table	= jc42_id,
+	.detect		= jc42_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(jc42_driver);
 

drivers/hwmon/lm70.c

@@ -47,7 +47,7 @@
 #define LM70_CHIP_LM74		3	/* NS LM74 */
 
 struct lm70 {
-	struct device *hwmon_dev;
+	struct spi_device *spi;
 	struct mutex lock;
 	unsigned int chip;
 };
@@ -56,11 +56,11 @@ struct lm70 {
 static ssize_t lm70_sense_temp(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct spi_device *spi = to_spi_device(dev);
+	struct lm70 *p_lm70 = dev_get_drvdata(dev);
+	struct spi_device *spi = p_lm70->spi;
 	int status, val = 0;
 	u8 rxbuf[2];
 	s16 raw = 0;
-	struct lm70 *p_lm70 = spi_get_drvdata(spi);
 
 	if (mutex_lock_interruptible(&p_lm70->lock))
 		return -ERESTARTSYS;
@@ -121,21 +121,20 @@ out:
 
 static DEVICE_ATTR(temp1_input, S_IRUGO, lm70_sense_temp, NULL);
 
-static ssize_t lm70_show_name(struct device *dev, struct device_attribute
-			      *devattr, char *buf)
-{
-	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
-}
+static struct attribute *lm70_attrs[] = {
+	&dev_attr_temp1_input.attr,
+	NULL
+};
 
-static DEVICE_ATTR(name, S_IRUGO, lm70_show_name, NULL);
+ATTRIBUTE_GROUPS(lm70);
 
 /*----------------------------------------------------------------------*/
 
 static int lm70_probe(struct spi_device *spi)
 {
 	int chip = spi_get_device_id(spi)->driver_data;
+	struct device *hwmon_dev;
 	struct lm70 *p_lm70;
-	int status;
 
 	/* signaling is SPI_MODE_0 */
 	if (spi->mode & (SPI_CPOL | SPI_CPHA))
@@ -149,46 +148,14 @@ static int lm70_probe(struct spi_device *spi)
 
 	mutex_init(&p_lm70->lock);
 	p_lm70->chip = chip;
+	p_lm70->spi = spi;
 
-	spi_set_drvdata(spi, p_lm70);
-
-	status = device_create_file(&spi->dev, &dev_attr_temp1_input);
-	if (status)
-		goto out_dev_create_temp_file_failed;
-	status = device_create_file(&spi->dev, &dev_attr_name);
-	if (status)
-		goto out_dev_create_file_failed;
-
-	/* sysfs hook */
-	p_lm70->hwmon_dev = hwmon_device_register(&spi->dev);
-	if (IS_ERR(p_lm70->hwmon_dev)) {
-		dev_dbg(&spi->dev, "hwmon_device_register failed.\n");
-		status = PTR_ERR(p_lm70->hwmon_dev);
-		goto out_dev_reg_failed;
-	}
-
-	return 0;
-
-out_dev_reg_failed:
-	device_remove_file(&spi->dev, &dev_attr_name);
-out_dev_create_file_failed:
-	device_remove_file(&spi->dev, &dev_attr_temp1_input);
-out_dev_create_temp_file_failed:
-	return status;
+	hwmon_dev = devm_hwmon_device_register_with_groups(&spi->dev,
+							   spi->modalias,
+							   p_lm70, lm70_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int lm70_remove(struct spi_device *spi)
-{
-	struct lm70 *p_lm70 = spi_get_drvdata(spi);
-
-	hwmon_device_unregister(p_lm70->hwmon_dev);
-	device_remove_file(&spi->dev, &dev_attr_temp1_input);
-	device_remove_file(&spi->dev, &dev_attr_name);
-
-	return 0;
-}
-
-
 static const struct spi_device_id lm70_ids[] = {
 	{ "lm70",   LM70_CHIP_LM70 },
 	{ "tmp121", LM70_CHIP_TMP121 },
@@ -205,7 +172,6 @@ static struct spi_driver lm70_driver = {
 	},
 	.id_table = lm70_ids,
 	.probe	= lm70_probe,
-	.remove	= lm70_remove,
 };
 
 module_spi_driver(lm70_driver);

drivers/hwmon/lm75.c

@@ -72,6 +72,7 @@ static const u8 LM75_REG_TEMP[3] = {
 
 /* Each client has this additional data */
 struct lm75_data {
+	struct i2c_client	*client;
 	struct device		*hwmon_dev;
 	struct thermal_zone_device	*tz;
 	struct mutex		update_lock;
@@ -130,8 +131,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm75_data *data = i2c_get_clientdata(client);
+	struct lm75_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int nr = attr->index;
 	long temp;
 	int error;
@@ -165,17 +166,14 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
 			show_temp, set_temp, 2);
 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
 
-static struct attribute *lm75_attributes[] = {
+static struct attribute *lm75_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 
 	NULL
 };
-
-static const struct attribute_group lm75_group = {
-	.attrs = lm75_attributes,
-};
+ATTRIBUTE_GROUPS(lm75);
 
 /*-----------------------------------------------------------------------*/
 
@@ -184,6 +182,7 @@ static const struct attribute_group lm75_group = {
 static int
 lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct lm75_data *data;
 	int status;
 	u8 set_mask, clr_mask;
@@ -194,10 +193,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
 		return -EIO;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct lm75_data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
+	data->client = client;
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
@@ -269,7 +269,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	/* configure as specified */
 	status = lm75_read_value(client, LM75_REG_CONF);
 	if (status < 0) {
-		dev_dbg(&client->dev, "Can't read config? %d\n", status);
+		dev_dbg(dev, "Can't read config? %d\n", status);
 		return status;
 	}
 	data->orig_conf = status;
@@ -277,43 +277,32 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	new |= set_mask;
 	if (status != new)
 		lm75_write_value(client, LM75_REG_CONF, new);
-	dev_dbg(&client->dev, "Config %02x\n", new);
+	dev_dbg(dev, "Config %02x\n", new);
 
-	/* Register sysfs hooks */
-	status = sysfs_create_group(&client->dev.kobj, &lm75_group);
-	if (status)
-		return status;
+	data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+							    data, lm75_groups);
+	if (IS_ERR(data->hwmon_dev))
+		return PTR_ERR(data->hwmon_dev);
 
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		status = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
-
-	data->tz = thermal_zone_of_sensor_register(&client->dev,
+	data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
 						   0,
-						   &client->dev,
+						   data->hwmon_dev,
 						   lm75_read_temp, NULL);
 	if (IS_ERR(data->tz))
 		data->tz = NULL;
 
-	dev_info(&client->dev, "%s: sensor '%s'\n",
+	dev_info(dev, "%s: sensor '%s'\n",
 		 dev_name(data->hwmon_dev), client->name);
 
 	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &lm75_group);
-	return status;
 }
 
 static int lm75_remove(struct i2c_client *client)
 {
 	struct lm75_data *data = i2c_get_clientdata(client);
 
-	thermal_zone_of_sensor_unregister(&client->dev, data->tz);
+	thermal_zone_of_sensor_unregister(data->hwmon_dev, data->tz);
 	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm75_group);
 	lm75_write_value(client, LM75_REG_CONF, data->orig_conf);
 	return 0;
 }
@@ -507,8 +496,8 @@ static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
 
 static struct lm75_data *lm75_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm75_data *data = i2c_get_clientdata(client);
+	struct lm75_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct lm75_data *ret = data;
 
 	mutex_lock(&data->update_lock);

drivers/hwmon/lm77.c

@@ -19,10 +19,6 @@
  * 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.
  */
 
 #include <linux/module.h>
@@ -47,50 +43,33 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
 #define LM77_REG_TEMP_MIN	0x04
 #define LM77_REG_TEMP_MAX	0x05
 
+enum temp_index {
+	t_input = 0,
+	t_crit,
+	t_min,
+	t_max,
+	t_hyst,
+	t_num_temp
+};
+
+static const u8 temp_regs[t_num_temp] = {
+	[t_input] = LM77_REG_TEMP,
+	[t_min] = LM77_REG_TEMP_MIN,
+	[t_max] = LM77_REG_TEMP_MAX,
+	[t_crit] = LM77_REG_TEMP_CRIT,
+	[t_hyst] = LM77_REG_TEMP_HYST,
+};
+
 /* Each client has this additional data */
 struct lm77_data {
-	struct device		*hwmon_dev;
+	struct i2c_client	*client;
 	struct mutex		update_lock;
 	char			valid;
 	unsigned long		last_updated;	/* In jiffies */
-	int			temp_input;	/* Temperatures */
-	int			temp_crit;
-	int			temp_min;
-	int			temp_max;
-	int			temp_hyst;
+	int			temp[t_num_temp]; /* index using temp_index */
 	u8			alarms;
 };
 
-static int lm77_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id);
-static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info);
-static void lm77_init_client(struct i2c_client *client);
-static int lm77_remove(struct i2c_client *client);
-static u16 lm77_read_value(struct i2c_client *client, u8 reg);
-static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
-
-static struct lm77_data *lm77_update_device(struct device *dev);
-
-
-static const struct i2c_device_id lm77_id[] = {
-	{ "lm77", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, lm77_id);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver lm77_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "lm77",
-	},
-	.probe		= lm77_probe,
-	.remove		= lm77_remove,
-	.id_table	= lm77_id,
-	.detect		= lm77_detect,
-	.address_list	= normal_i2c,
-};
-
 /* straight from the datasheet */
 #define LM77_TEMP_MIN (-55000)
 #define LM77_TEMP_MAX 125000
@@ -110,97 +89,109 @@ static inline int LM77_TEMP_FROM_REG(s16 reg)
 	return (reg / 8) * 500;
 }
 
-/* sysfs stuff */
-
-/* read routines for temperature limits */
-#define show(value)	\
-static ssize_t show_##value(struct device *dev,			\
-			    struct device_attribute *attr,	\
-			    char *buf)				\
-{								\
-	struct lm77_data *data = lm77_update_device(dev);	\
-	return sprintf(buf, "%d\n", data->value);		\
+/*
+ * All registers are word-sized, except for the configuration register.
+ * The LM77 uses the high-byte first convention.
+ */
+static u16 lm77_read_value(struct i2c_client *client, u8 reg)
+{
+	if (reg == LM77_REG_CONF)
+		return i2c_smbus_read_byte_data(client, reg);
+	else
+		return i2c_smbus_read_word_swapped(client, reg);
 }
 
-show(temp_input);
-show(temp_crit);
-show(temp_min);
-show(temp_max);
+static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if (reg == LM77_REG_CONF)
+		return i2c_smbus_write_byte_data(client, reg, value);
+	else
+		return i2c_smbus_write_word_swapped(client, reg, value);
+}
 
-/* read routines for hysteresis values */
-static ssize_t show_temp_crit_hyst(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+static struct lm77_data *lm77_update_device(struct device *dev)
 {
-	struct lm77_data *data = lm77_update_device(dev);
-	return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
+	struct lm77_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Starting lm77 update\n");
+		for (i = 0; i < t_num_temp; i++) {
+			data->temp[i] =
+			  LM77_TEMP_FROM_REG(lm77_read_value(client,
+							     temp_regs[i]));
+		}
+		data->alarms =
+			lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
 }
-static ssize_t show_temp_min_hyst(struct device *dev,
-				  struct device_attribute *attr, char *buf)
+
+/* sysfs stuff */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct lm77_data *data = lm77_update_device(dev);
-	return sprintf(buf, "%d\n", data->temp_min + data->temp_hyst);
+
+	return sprintf(buf, "%d\n", data->temp[attr->index]);
 }
-static ssize_t show_temp_max_hyst(struct device *dev,
-				  struct device_attribute *attr, char *buf)
+
+static ssize_t show_temp_hyst(struct device *dev,
+			      struct device_attribute *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct lm77_data *data = lm77_update_device(dev);
-	return sprintf(buf, "%d\n", data->temp_max - data->temp_hyst);
-}
+	int nr = attr->index;
+	int temp;
 
-/* write routines */
-#define set(value, reg)	\
-static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
-			   const char *buf, size_t count)		\
-{									\
-	struct i2c_client *client = to_i2c_client(dev);			\
-	struct lm77_data *data = i2c_get_clientdata(client);		\
-	long val;							\
-	int err = kstrtol(buf, 10, &val);				\
-	if (err)							\
-		return err;						\
-									\
-	mutex_lock(&data->update_lock);					\
-	data->value = val;						\
-	lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value));	\
-	mutex_unlock(&data->update_lock);				\
-	return count;							\
-}
+	temp = nr == t_min ? data->temp[nr] + data->temp[t_hyst] :
+			     data->temp[nr] - data->temp[t_hyst];
 
-set(temp_min, LM77_REG_TEMP_MIN);
-set(temp_max, LM77_REG_TEMP_MAX);
+	return sprintf(buf, "%d\n", temp);
+}
 
-/*
- * hysteresis is stored as a relative value on the chip, so it has to be
- * converted first
- */
-static ssize_t set_temp_crit_hyst(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
+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 lm77_data *data = i2c_get_clientdata(client);
-	unsigned long val;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm77_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int nr = attr->index;
+	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_hyst = data->temp_crit - val;
-	lm77_write_value(client, LM77_REG_TEMP_HYST,
-			 LM77_TEMP_TO_REG(data->temp_hyst));
+	data->temp[nr] = val;
+	lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val));
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 
-/* preserve hysteresis when setting T_crit */
-static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
+/*
+ * hysteresis is stored as a relative value on the chip, so it has to be
+ * converted first.
+ */
+static ssize_t set_temp_hyst(struct device *dev,
+			     struct device_attribute *devattr,
 			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm77_data *data = i2c_get_clientdata(client);
-	int oldcrithyst;
+	struct lm77_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err;
 
@@ -209,13 +200,9 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
 		return err;
 
 	mutex_lock(&data->update_lock);
-	oldcrithyst = data->temp_crit - data->temp_hyst;
-	data->temp_crit = val;
-	data->temp_hyst = data->temp_crit - oldcrithyst;
-	lm77_write_value(client, LM77_REG_TEMP_CRIT,
-			 LM77_TEMP_TO_REG(data->temp_crit));
+	data->temp[t_hyst] = data->temp[t_crit] - val;
 	lm77_write_value(client, LM77_REG_TEMP_HYST,
-			 LM77_TEMP_TO_REG(data->temp_hyst));
+			 LM77_TEMP_TO_REG(data->temp[t_hyst]));
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -228,43 +215,37 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
 }
 
-static DEVICE_ATTR(temp1_input, S_IRUGO,
-		   show_temp_input, NULL);
-static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
-		   show_temp_crit, set_temp_crit);
-static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
-		   show_temp_min, set_temp_min);
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
-		   show_temp_max, set_temp_max);
-
-static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
-		   show_temp_crit_hyst, set_temp_crit_hyst);
-static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
-		   show_temp_min_hyst, NULL);
-static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
-		   show_temp_max_hyst, NULL);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_crit);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_min);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_max);
+
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,
+			  set_temp_hyst, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_hyst, NULL, t_min);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
 
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
 
-static struct attribute *lm77_attributes[] = {
-	&dev_attr_temp1_input.attr,
-	&dev_attr_temp1_crit.attr,
-	&dev_attr_temp1_min.attr,
-	&dev_attr_temp1_max.attr,
-	&dev_attr_temp1_crit_hyst.attr,
-	&dev_attr_temp1_min_hyst.attr,
-	&dev_attr_temp1_max_hyst.attr,
+static struct attribute *lm77_attrs[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group lm77_group = {
-	.attrs = lm77_attributes,
-};
+ATTRIBUTE_GROUPS(lm77);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info)
@@ -337,111 +318,52 @@ static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return 0;
 }
 
+static void lm77_init_client(struct i2c_client *client)
+{
+	/* Initialize the LM77 chip - turn off shutdown mode */
+	int conf = lm77_read_value(client, LM77_REG_CONF);
+	if (conf & 1)
+		lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
+}
+
 static int lm77_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct lm77_data *data;
-	int err;
 
 	data = devm_kzalloc(dev, sizeof(struct lm77_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the LM77 chip */
 	lm77_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&dev->kobj, &lm77_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;
-	}
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&dev->kobj, &lm77_group);
-	return err;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, lm77_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int lm77_remove(struct i2c_client *client)
-{
-	struct lm77_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm77_group);
-	return 0;
-}
-
-/*
- * All registers are word-sized, except for the configuration register.
- * The LM77 uses the high-byte first convention.
- */
-static u16 lm77_read_value(struct i2c_client *client, u8 reg)
-{
-	if (reg == LM77_REG_CONF)
-		return i2c_smbus_read_byte_data(client, reg);
-	else
-		return i2c_smbus_read_word_swapped(client, reg);
-}
-
-static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
-{
-	if (reg == LM77_REG_CONF)
-		return i2c_smbus_write_byte_data(client, reg, value);
-	else
-		return i2c_smbus_write_word_swapped(client, reg, value);
-}
-
-static void lm77_init_client(struct i2c_client *client)
-{
-	/* Initialize the LM77 chip - turn off shutdown mode */
-	int conf = lm77_read_value(client, LM77_REG_CONF);
-	if (conf & 1)
-		lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
-}
-
-static struct lm77_data *lm77_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm77_data *data = i2c_get_clientdata(client);
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
-	    || !data->valid) {
-		dev_dbg(&client->dev, "Starting lm77 update\n");
-		data->temp_input =
-			LM77_TEMP_FROM_REG(lm77_read_value(client,
-							   LM77_REG_TEMP));
-		data->temp_hyst =
-			LM77_TEMP_FROM_REG(lm77_read_value(client,
-							   LM77_REG_TEMP_HYST));
-		data->temp_crit =
-			LM77_TEMP_FROM_REG(lm77_read_value(client,
-							   LM77_REG_TEMP_CRIT));
-		data->temp_min =
-			LM77_TEMP_FROM_REG(lm77_read_value(client,
-							   LM77_REG_TEMP_MIN));
-		data->temp_max =
-			LM77_TEMP_FROM_REG(lm77_read_value(client,
-							   LM77_REG_TEMP_MAX));
-		data->alarms =
-			lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
-
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id lm77_id[] = {
+	{ "lm77", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm77_id);
 
-	return data;
-}
+/* This is the driver that will be inserted */
+static struct i2c_driver lm77_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm77",
+	},
+	.probe		= lm77_probe,
+	.id_table	= lm77_id,
+	.detect		= lm77_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(lm77_driver);
 

drivers/hwmon/lm80.c

@@ -86,26 +86,41 @@ static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div)
 #define FAN_FROM_REG(val, div)	((val) == 0 ? -1 : \
 				(val) == 255 ? 0 : 1350000/((div) * (val)))
 
-static inline long TEMP_FROM_REG(u16 temp)
-{
-	long res;
+#define TEMP_FROM_REG(reg)	((reg) * 125 / 32)
+#define TEMP_TO_REG(temp)	(DIV_ROUND_CLOSEST(clamp_val((temp), \
+					-128000, 127000), 1000) << 8)
 
-	temp >>= 4;
-	if (temp < 0x0800)
-		res = 625 * (long) temp;
-	else
-		res = ((long) temp - 0x01000) * 625;
+#define DIV_FROM_REG(val)		(1 << (val))
 
-	return res / 10;
-}
+enum temp_index {
+	t_input = 0,
+	t_hot_max,
+	t_hot_hyst,
+	t_os_max,
+	t_os_hyst,
+	t_num_temp
+};
 
-#define TEMP_LIMIT_FROM_REG(val)	(((val) > 0x80 ? \
-	(val) - 0x100 : (val)) * 1000)
+static const u8 temp_regs[t_num_temp] = {
+	[t_input] = LM80_REG_TEMP,
+	[t_hot_max] = LM80_REG_TEMP_HOT_MAX,
+	[t_hot_hyst] = LM80_REG_TEMP_HOT_HYST,
+	[t_os_max] = LM80_REG_TEMP_OS_MAX,
+	[t_os_hyst] = LM80_REG_TEMP_OS_HYST,
+};
 
-#define TEMP_LIMIT_TO_REG(val)		clamp_val((val) < 0 ? \
-	((val) - 500) / 1000 : ((val) + 500) / 1000, 0, 255)
+enum in_index {
+	i_input = 0,
+	i_max,
+	i_min,
+	i_num_in
+};
 
-#define DIV_FROM_REG(val)		(1 << (val))
+enum fan_index {
+	f_input,
+	f_min,
+	f_num_fan
+};
 
 /*
  * Client data (each client gets its own)
@@ -118,106 +133,187 @@ struct lm80_data {
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 
-	u8 in[7];		/* Register value */
-	u8 in_max[7];		/* Register value */
-	u8 in_min[7];		/* Register value */
-	u8 fan[2];		/* Register value */
-	u8 fan_min[2];		/* Register value */
+	u8 in[i_num_in][7];	/* Register value, 1st index is enum in_index */
+	u8 fan[f_num_fan][2];	/* Register value, 1st index enum fan_index */
 	u8 fan_div[2];		/* Register encoding, shifted right */
-	u16 temp;		/* Register values, shifted right */
-	u8 temp_hot_max;	/* Register value */
-	u8 temp_hot_hyst;	/* Register value */
-	u8 temp_os_max;		/* Register value */
-	u8 temp_os_hyst;	/* Register value */
+	s16 temp[t_num_temp];	/* Register values, normalized to 16 bit */
 	u16 alarms;		/* Register encoding, combined */
 };
 
-/*
- * Functions declaration
- */
+static int lm80_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
 
-static int lm80_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id);
-static int lm80_detect(struct i2c_client *client, struct i2c_board_info *info);
-static void lm80_init_client(struct i2c_client *client);
-static struct lm80_data *lm80_update_device(struct device *dev);
-static int lm80_read_value(struct i2c_client *client, u8 reg);
-static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
+static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
 
-/*
- * Driver data (common to all clients)
- */
+/* Called when we have found a new LM80 and after read errors */
+static void lm80_init_client(struct i2c_client *client)
+{
+	/*
+	 * Reset all except Watchdog values and last conversion values
+	 * This sets fan-divs to 2, among others. This makes most other
+	 * initializations unnecessary
+	 */
+	lm80_write_value(client, LM80_REG_CONFIG, 0x80);
+	/* Set 11-bit temperature resolution */
+	lm80_write_value(client, LM80_REG_RES, 0x08);
 
-static const struct i2c_device_id lm80_id[] = {
-	{ "lm80", 0 },
-	{ "lm96080", 1 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, lm80_id);
+	/* Start monitoring */
+	lm80_write_value(client, LM80_REG_CONFIG, 0x01);
+}
 
-static struct i2c_driver lm80_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "lm80",
-	},
-	.probe		= lm80_probe,
-	.id_table	= lm80_id,
-	.detect		= lm80_detect,
-	.address_list	= normal_i2c,
-};
+static struct lm80_data *lm80_update_device(struct device *dev)
+{
+	struct lm80_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
+	int rv;
+	int prev_rv;
+	struct lm80_data *ret = data;
+
+	mutex_lock(&data->update_lock);
+
+	if (data->error)
+		lm80_init_client(client);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+		dev_dbg(dev, "Starting lm80 update\n");
+		for (i = 0; i <= 6; i++) {
+			rv = lm80_read_value(client, LM80_REG_IN(i));
+			if (rv < 0)
+				goto abort;
+			data->in[i_input][i] = rv;
+
+			rv = lm80_read_value(client, LM80_REG_IN_MIN(i));
+			if (rv < 0)
+				goto abort;
+			data->in[i_min][i] = rv;
+
+			rv = lm80_read_value(client, LM80_REG_IN_MAX(i));
+			if (rv < 0)
+				goto abort;
+			data->in[i_max][i] = rv;
+		}
+
+		rv = lm80_read_value(client, LM80_REG_FAN1);
+		if (rv < 0)
+			goto abort;
+		data->fan[f_input][0] = rv;
+
+		rv = lm80_read_value(client, LM80_REG_FAN_MIN(1));
+		if (rv < 0)
+			goto abort;
+		data->fan[f_min][0] = rv;
+
+		rv = lm80_read_value(client, LM80_REG_FAN2);
+		if (rv < 0)
+			goto abort;
+		data->fan[f_input][1] = rv;
+
+		rv = lm80_read_value(client, LM80_REG_FAN_MIN(2));
+		if (rv < 0)
+			goto abort;
+		data->fan[f_min][1] = rv;
+
+		prev_rv = rv = lm80_read_value(client, LM80_REG_TEMP);
+		if (rv < 0)
+			goto abort;
+		rv = lm80_read_value(client, LM80_REG_RES);
+		if (rv < 0)
+			goto abort;
+		data->temp[t_input] = (prev_rv << 8) | (rv & 0xf0);
+
+		for (i = t_input + 1; i < t_num_temp; i++) {
+			rv = lm80_read_value(client, temp_regs[i]);
+			if (rv < 0)
+				goto abort;
+			data->temp[i] = rv << 8;
+		}
+
+		rv = lm80_read_value(client, LM80_REG_FANDIV);
+		if (rv < 0)
+			goto abort;
+		data->fan_div[0] = (rv >> 2) & 0x03;
+		data->fan_div[1] = (rv >> 4) & 0x03;
+
+		prev_rv = rv = lm80_read_value(client, LM80_REG_ALARM1);
+		if (rv < 0)
+			goto abort;
+		rv = lm80_read_value(client, LM80_REG_ALARM2);
+		if (rv < 0)
+			goto abort;
+		data->alarms = prev_rv + (rv << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+		data->error = 0;
+	}
+	goto done;
+
+abort:
+	ret = ERR_PTR(rv);
+	data->valid = 0;
+	data->error = 1;
+
+done:
+	mutex_unlock(&data->update_lock);
+
+	return ret;
+}
 
 /*
  * Sysfs stuff
  */
 
-#define show_in(suffix, value) \
-static ssize_t show_in_##suffix(struct device *dev, \
-	struct device_attribute *attr, char *buf) \
-{ \
-	int nr = to_sensor_dev_attr(attr)->index; \
-	struct lm80_data *data = lm80_update_device(dev); \
-	if (IS_ERR(data)) \
-		return PTR_ERR(data); \
-	return sprintf(buf, "%d\n", IN_FROM_REG(data->value[nr])); \
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	struct lm80_data *data = lm80_update_device(dev);
+	int index = to_sensor_dev_attr_2(attr)->index;
+	int nr = to_sensor_dev_attr_2(attr)->nr;
+
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr][index]));
 }
-show_in(min, in_min)
-show_in(max, in_max)
-show_in(input, in)
-
-#define set_in(suffix, value, reg) \
-static ssize_t set_in_##suffix(struct device *dev, \
-	struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-	int nr = to_sensor_dev_attr(attr)->index; \
-	struct lm80_data *data = dev_get_drvdata(dev); \
-	struct i2c_client *client = data->client; \
-	long val; \
-	int err = kstrtol(buf, 10, &val); \
-	if (err < 0) \
-		return err; \
-\
-	mutex_lock(&data->update_lock);\
-	data->value[nr] = IN_TO_REG(val); \
-	lm80_write_value(client, reg(nr), data->value[nr]); \
-	mutex_unlock(&data->update_lock);\
-	return count; \
+
+static ssize_t set_in(struct device *dev, struct device_attribute *attr,
+		      const char *buf, size_t count)
+{
+	struct lm80_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int index = to_sensor_dev_attr_2(attr)->index;
+	int nr = to_sensor_dev_attr_2(attr)->nr;
+	long val;
+	u8 reg;
+	int err = kstrtol(buf, 10, &val);
+	if (err < 0)
+		return err;
+
+	reg = nr == i_min ? LM80_REG_IN_MIN(index) : LM80_REG_IN_MAX(index);
+
+	mutex_lock(&data->update_lock);
+	data->in[nr][index] = IN_TO_REG(val);
+	lm80_write_value(client, reg, data->in[nr][index]);
+	mutex_unlock(&data->update_lock);
+	return count;
 }
-set_in(min, in_min, LM80_REG_IN_MIN)
-set_in(max, in_max, LM80_REG_IN_MAX)
-
-#define show_fan(suffix, value) \
-static ssize_t show_fan_##suffix(struct device *dev, \
-	struct device_attribute *attr, char *buf) \
-{ \
-	int nr = to_sensor_dev_attr(attr)->index; \
-	struct lm80_data *data = lm80_update_device(dev); \
-	if (IS_ERR(data)) \
-		return PTR_ERR(data); \
-	return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[nr], \
-		       DIV_FROM_REG(data->fan_div[nr]))); \
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	int index = to_sensor_dev_attr_2(attr)->index;
+	int nr = to_sensor_dev_attr_2(attr)->nr;
+	struct lm80_data *data = lm80_update_device(dev);
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr][index],
+		       DIV_FROM_REG(data->fan_div[index])));
 }
-show_fan(min, fan_min)
-show_fan(input, fan)
 
 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 	char *buf)
@@ -232,7 +328,8 @@ static ssize_t show_fan_div(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)
 {
-	int nr = to_sensor_dev_attr(attr)->index;
+	int index = to_sensor_dev_attr_2(attr)->index;
+	int nr = to_sensor_dev_attr_2(attr)->nr;
 	struct lm80_data *data = dev_get_drvdata(dev);
 	struct i2c_client *client = data->client;
 	unsigned long val;
@@ -241,8 +338,10 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 		return err;
 
 	mutex_lock(&data->update_lock);
-	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
-	lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
+	data->fan[nr][index] = FAN_TO_REG(val,
+					  DIV_FROM_REG(data->fan_div[index]));
+	lm80_write_value(client, LM80_REG_FAN_MIN(index + 1),
+			 data->fan[nr][index]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -267,7 +366,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 
 	/* Save fan_min */
 	mutex_lock(&data->update_lock);
-	min = FAN_FROM_REG(data->fan_min[nr],
+	min = FAN_FROM_REG(data->fan[f_min][nr],
 			   DIV_FROM_REG(data->fan_div[nr]));
 
 	switch (val) {
@@ -291,62 +390,47 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 	}
 
-	reg = (lm80_read_value(client, LM80_REG_FANDIV) & ~(3 << (2 * (nr + 1))))
-	    | (data->fan_div[nr] << (2 * (nr + 1)));
+	reg = (lm80_read_value(client, LM80_REG_FANDIV) &
+	       ~(3 << (2 * (nr + 1)))) | (data->fan_div[nr] << (2 * (nr + 1)));
 	lm80_write_value(client, LM80_REG_FANDIV, reg);
 
 	/* Restore fan_min */
-	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
-	lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
+	data->fan[f_min][nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1),
+			 data->fan[f_min][nr]);
 	mutex_unlock(&data->update_lock);
 
 	return count;
 }
 
-static ssize_t show_temp_input1(struct device *dev,
-	struct device_attribute *attr, char *buf)
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct lm80_data *data = lm80_update_device(dev);
 	if (IS_ERR(data))
 		return PTR_ERR(data);
-	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp));
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 }
 
-#define show_temp(suffix, value) \
-static ssize_t show_temp_##suffix(struct device *dev, \
-	struct device_attribute *attr, char *buf) \
-{ \
-	struct lm80_data *data = lm80_update_device(dev); \
-	if (IS_ERR(data)) \
-		return PTR_ERR(data); \
-	return sprintf(buf, "%d\n", TEMP_LIMIT_FROM_REG(data->value)); \
-}
-show_temp(hot_max, temp_hot_max);
-show_temp(hot_hyst, temp_hot_hyst);
-show_temp(os_max, temp_os_max);
-show_temp(os_hyst, temp_os_hyst);
-
-#define set_temp(suffix, value, reg) \
-static ssize_t set_temp_##suffix(struct device *dev, \
-	struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-	struct lm80_data *data = dev_get_drvdata(dev); \
-	struct i2c_client *client = data->client; \
-	long val; \
-	int err = kstrtol(buf, 10, &val); \
-	if (err < 0) \
-		return err; \
-\
-	mutex_lock(&data->update_lock); \
-	data->value = TEMP_LIMIT_TO_REG(val); \
-	lm80_write_value(client, reg, data->value); \
-	mutex_unlock(&data->update_lock); \
-	return count; \
+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 lm80_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int nr = attr->index;
+	long val;
+	int err = kstrtol(buf, 10, &val);
+	if (err < 0)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = TEMP_TO_REG(val);
+	lm80_write_value(client, temp_regs[nr], data->temp[nr] >> 8);
+	mutex_unlock(&data->update_lock);
+	return count;
 }
-set_temp(hot_max, temp_hot_max, LM80_REG_TEMP_HOT_MAX);
-set_temp(hot_hyst, temp_hot_hyst, LM80_REG_TEMP_HOT_HYST);
-set_temp(os_max, temp_os_max, LM80_REG_TEMP_OS_MAX);
-set_temp(os_hyst, temp_os_hyst, LM80_REG_TEMP_OS_HYST);
 
 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
 			   char *buf)
@@ -367,60 +451,60 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
 }
 
-static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 0);
-static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 1);
-static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 2);
-static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 3);
-static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 4);
-static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 5);
-static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
-		show_in_min, set_in_min, 6);
-static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 0);
-static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 1);
-static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 2);
-static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 3);
-static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 4);
-static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 5);
-static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
-		show_in_max, set_in_max, 6);
-static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0);
-static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1);
-static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2);
-static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3);
-static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4);
-static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5);
-static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6);
-static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
-		show_fan_min, set_fan_min, 0);
-static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
-		show_fan_min, set_fan_min, 1);
-static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
-static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 0);
+static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 1);
+static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 2);
+static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 3);
+static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 4);
+static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 5);
+static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_min, 6);
+static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 0);
+static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 1);
+static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 2);
+static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 3);
+static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 4);
+static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 5);
+static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO,
+		show_in, set_in, i_max, 6);
+static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, i_input, 0);
+static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, i_input, 1);
+static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, i_input, 2);
+static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, i_input, 3);
+static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, i_input, 4);
+static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, i_input, 5);
+static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, i_input, 6);
+static SENSOR_DEVICE_ATTR_2(fan1_min, S_IWUSR | S_IRUGO,
+		show_fan, set_fan_min, f_min, 0);
+static SENSOR_DEVICE_ATTR_2(fan2_min, S_IWUSR | S_IRUGO,
+		show_fan, set_fan_min, f_min, 1);
+static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, f_input, 0);
+static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, f_input, 1);
 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
 		show_fan_div, set_fan_div, 0);
 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
 		show_fan_div, set_fan_div, 1);
-static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max,
-	set_temp_hot_max);
-static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hot_hyst,
-	set_temp_hot_hyst);
-static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_os_max,
-	set_temp_os_max);
-static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_os_hyst,
-	set_temp_os_hyst);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp,
+		set_temp, t_hot_max);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp,
+		set_temp, t_hot_hyst);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp,
+		set_temp, t_os_max);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp,
+		set_temp, t_os_hyst);
 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
@@ -466,11 +550,11 @@ static struct attribute *lm80_attrs[] = {
 	&sensor_dev_attr_fan2_input.dev_attr.attr,
 	&sensor_dev_attr_fan1_div.dev_attr.attr,
 	&sensor_dev_attr_fan2_div.dev_attr.attr,
-	&dev_attr_temp1_input.attr,
-	&dev_attr_temp1_max.attr,
-	&dev_attr_temp1_max_hyst.attr,
-	&dev_attr_temp1_crit.attr,
-	&dev_attr_temp1_crit_hyst.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
 	&dev_attr_alarms.attr,
 	&sensor_dev_attr_in0_alarm.dev_attr.attr,
 	&sensor_dev_attr_in1_alarm.dev_attr.attr,
@@ -551,8 +635,8 @@ static int lm80_probe(struct i2c_client *client,
 	lm80_init_client(client);
 
 	/* A few vars need to be filled upon startup */
-	data->fan_min[0] = lm80_read_value(client, LM80_REG_FAN_MIN(1));
-	data->fan_min[1] = lm80_read_value(client, LM80_REG_FAN_MIN(2));
+	data->fan[f_min][0] = lm80_read_value(client, LM80_REG_FAN_MIN(1));
+	data->fan[f_min][1] = lm80_read_value(client, LM80_REG_FAN_MIN(2));
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data, lm80_groups);
@@ -560,143 +644,27 @@ static int lm80_probe(struct i2c_client *client,
 	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static int lm80_read_value(struct i2c_client *client, u8 reg)
-{
-	return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
-{
-	return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-/* Called when we have found a new LM80. */
-static void lm80_init_client(struct i2c_client *client)
-{
-	/*
-	 * Reset all except Watchdog values and last conversion values
-	 * This sets fan-divs to 2, among others. This makes most other
-	 * initializations unnecessary
-	 */
-	lm80_write_value(client, LM80_REG_CONFIG, 0x80);
-	/* Set 11-bit temperature resolution */
-	lm80_write_value(client, LM80_REG_RES, 0x08);
-
-	/* Start monitoring */
-	lm80_write_value(client, LM80_REG_CONFIG, 0x01);
-}
-
-static struct lm80_data *lm80_update_device(struct device *dev)
-{
-	struct lm80_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
-	int i;
-	int rv;
-	int prev_rv;
-	struct lm80_data *ret = data;
-
-	mutex_lock(&data->update_lock);
-
-	if (data->error)
-		lm80_init_client(client);
-
-	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
-		dev_dbg(dev, "Starting lm80 update\n");
-		for (i = 0; i <= 6; i++) {
-			rv = lm80_read_value(client, LM80_REG_IN(i));
-			if (rv < 0)
-				goto abort;
-			data->in[i] = rv;
-
-			rv = lm80_read_value(client, LM80_REG_IN_MIN(i));
-			if (rv < 0)
-				goto abort;
-			data->in_min[i] = rv;
-
-			rv = lm80_read_value(client, LM80_REG_IN_MAX(i));
-			if (rv < 0)
-				goto abort;
-			data->in_max[i] = rv;
-		}
-
-		rv = lm80_read_value(client, LM80_REG_FAN1);
-		if (rv < 0)
-			goto abort;
-		data->fan[0] = rv;
-
-		rv = lm80_read_value(client, LM80_REG_FAN_MIN(1));
-		if (rv < 0)
-			goto abort;
-		data->fan_min[0] = rv;
-
-		rv = lm80_read_value(client, LM80_REG_FAN2);
-		if (rv < 0)
-			goto abort;
-		data->fan[1] = rv;
-
-		rv = lm80_read_value(client, LM80_REG_FAN_MIN(2));
-		if (rv < 0)
-			goto abort;
-		data->fan_min[1] = rv;
-
-		prev_rv = rv = lm80_read_value(client, LM80_REG_TEMP);
-		if (rv < 0)
-			goto abort;
-		rv = lm80_read_value(client, LM80_REG_RES);
-		if (rv < 0)
-			goto abort;
-		data->temp = (prev_rv << 8) | (rv & 0xf0);
-
-		rv = lm80_read_value(client, LM80_REG_TEMP_OS_MAX);
-		if (rv < 0)
-			goto abort;
-		data->temp_os_max = rv;
-
-		rv = lm80_read_value(client, LM80_REG_TEMP_OS_HYST);
-		if (rv < 0)
-			goto abort;
-		data->temp_os_hyst = rv;
-
-		rv = lm80_read_value(client, LM80_REG_TEMP_HOT_MAX);
-		if (rv < 0)
-			goto abort;
-		data->temp_hot_max = rv;
-
-		rv = lm80_read_value(client, LM80_REG_TEMP_HOT_HYST);
-		if (rv < 0)
-			goto abort;
-		data->temp_hot_hyst = rv;
-
-		rv = lm80_read_value(client, LM80_REG_FANDIV);
-		if (rv < 0)
-			goto abort;
-		data->fan_div[0] = (rv >> 2) & 0x03;
-		data->fan_div[1] = (rv >> 4) & 0x03;
-
-		prev_rv = rv = lm80_read_value(client, LM80_REG_ALARM1);
-		if (rv < 0)
-			goto abort;
-		rv = lm80_read_value(client, LM80_REG_ALARM2);
-		if (rv < 0)
-			goto abort;
-		data->alarms = prev_rv + (rv << 8);
-
-		data->last_updated = jiffies;
-		data->valid = 1;
-		data->error = 0;
-	}
-	goto done;
-
-abort:
-	ret = ERR_PTR(rv);
-	data->valid = 0;
-	data->error = 1;
+/*
+ * Driver data (common to all clients)
+ */
 
-done:
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id lm80_id[] = {
+	{ "lm80", 0 },
+	{ "lm96080", 1 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm80_id);
 
-	return ret;
-}
+static struct i2c_driver lm80_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm80",
+	},
+	.probe		= lm80_probe,
+	.id_table	= lm80_id,
+	.detect		= lm80_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(lm80_driver);
 

drivers/hwmon/lm83.c

@@ -25,10 +25,6 @@
  * 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.
  */
 
 #include <linux/module.h>
@@ -110,46 +106,13 @@ static const u8 LM83_REG_W_HIGH[] = {
 	LM83_REG_W_TCRIT,
 };
 
-/*
- * Functions declaration
- */
-
-static int lm83_detect(struct i2c_client *new_client,
-		       struct i2c_board_info *info);
-static int lm83_probe(struct i2c_client *client,
-		      const struct i2c_device_id *id);
-static int lm83_remove(struct i2c_client *client);
-static struct lm83_data *lm83_update_device(struct device *dev);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id lm83_id[] = {
-	{ "lm83", lm83 },
-	{ "lm82", lm82 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, lm83_id);
-
-static struct i2c_driver lm83_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "lm83",
-	},
-	.probe		= lm83_probe,
-	.remove		= lm83_remove,
-	.id_table	= lm83_id,
-	.detect		= lm83_detect,
-	.address_list	= normal_i2c,
-};
-
 /*
  * Client data (each client gets its own)
  */
 
 struct lm83_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 */
@@ -161,6 +124,36 @@ struct lm83_data {
 	u16 alarms; /* bitvector, combined */
 };
 
+static struct lm83_data *lm83_update_device(struct device *dev)
+{
+	struct lm83_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 nr;
+
+		dev_dbg(&client->dev, "Updating lm83 data.\n");
+		for (nr = 0; nr < 9; nr++) {
+			data->temp[nr] =
+			    i2c_smbus_read_byte_data(client,
+			    LM83_REG_R_TEMP[nr]);
+		}
+		data->alarms =
+		    i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
+		    + (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
+		    << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /*
  * Sysfs stuff
  */
@@ -177,8 +170,8 @@ 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 lm83_data *data = i2c_get_clientdata(client);
+	struct lm83_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int nr = attr->index;
 	int err;
@@ -340,15 +333,15 @@ static int lm83_detect(struct i2c_client *new_client,
 static int lm83_probe(struct i2c_client *new_client,
 		      const struct i2c_device_id *id)
 {
+	struct device *hwmon_dev;
 	struct lm83_data *data;
-	int err;
 
 	data = devm_kzalloc(&new_client->dev, sizeof(struct lm83_data),
 			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(new_client, data);
+	data->client = new_client;
 	mutex_init(&data->update_lock);
 
 	/*
@@ -357,72 +350,37 @@ static int lm83_probe(struct i2c_client *new_client,
 	 * at the same register as the LM83 temp3 entry - so we
 	 * declare 1 and 3 common, and then 2 and 4 only for the LM83.
 	 */
-
-	err = sysfs_create_group(&new_client->dev.kobj, &lm83_group);
-	if (err)
-		return err;
-
-	if (id->driver_data == lm83) {
-		err = sysfs_create_group(&new_client->dev.kobj,
-					 &lm83_group_opt);
-		if (err)
-			goto exit_remove_files;
-	}
-
-	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;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&new_client->dev.kobj, &lm83_group);
-	sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt);
-	return err;
-}
-
-static int lm83_remove(struct i2c_client *client)
-{
-	struct lm83_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm83_group);
-	sysfs_remove_group(&client->dev.kobj, &lm83_group_opt);
-
-	return 0;
+	data->groups[0] = &lm83_group;
+	if (id->driver_data == lm83)
+		data->groups[1] = &lm83_group_opt;
+
+	hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
+							   new_client->name,
+							   data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static struct lm83_data *lm83_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm83_data *data = i2c_get_clientdata(client);
-
-	mutex_lock(&data->update_lock);
-
-	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
-		int nr;
-
-		dev_dbg(&client->dev, "Updating lm83 data.\n");
-		for (nr = 0; nr < 9; nr++) {
-			data->temp[nr] =
-			    i2c_smbus_read_byte_data(client,
-			    LM83_REG_R_TEMP[nr]);
-		}
-		data->alarms =
-		    i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
-		    + (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
-		    << 8);
-
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+/*
+ * Driver data (common to all clients)
+ */
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id lm83_id[] = {
+	{ "lm83", lm83 },
+	{ "lm82", lm82 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm83_id);
 
-	return data;
-}
+static struct i2c_driver lm83_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm83",
+	},
+	.probe		= lm83_probe,
+	.id_table	= lm83_id,
+	.detect		= lm83_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(lm83_driver);
 

drivers/hwmon/lm92.c

@@ -34,10 +34,6 @@
  * 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.
  */
 
 #include <linux/module.h>
@@ -93,46 +89,53 @@ static inline u8 ALARMS_FROM_REG(s16 reg)
 	return reg & 0x0007;
 }
 
-/* Driver data (common to all clients) */
-static struct i2c_driver lm92_driver;
+enum temp_index {
+	t_input,
+	t_crit,
+	t_min,
+	t_max,
+	t_hyst,
+	t_num_regs
+};
+
+static const u8 regs[t_num_regs] = {
+	[t_input] = LM92_REG_TEMP,
+	[t_crit] = LM92_REG_TEMP_CRIT,
+	[t_min] = LM92_REG_TEMP_LOW,
+	[t_max] = LM92_REG_TEMP_HIGH,
+	[t_hyst] = LM92_REG_TEMP_HYST,
+};
 
 /* Client data (each client gets its own) */
 struct lm92_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 */
 
 	/* registers values */
-	s16 temp1_input, temp1_crit, temp1_min, temp1_max, temp1_hyst;
+	s16 temp[t_num_regs];	/* index with enum temp_index */
 };
 
-
 /*
  * Sysfs attributes and callback functions
  */
 
 static struct lm92_data *lm92_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm92_data *data = i2c_get_clientdata(client);
+	struct lm92_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
 
 	mutex_lock(&data->update_lock);
 
 	if (time_after(jiffies, data->last_updated + HZ)
 	 || !data->valid) {
 		dev_dbg(&client->dev, "Updating lm92 data\n");
-		data->temp1_input = i2c_smbus_read_word_swapped(client,
-				    LM92_REG_TEMP);
-		data->temp1_hyst = i2c_smbus_read_word_swapped(client,
-				    LM92_REG_TEMP_HYST);
-		data->temp1_crit = i2c_smbus_read_word_swapped(client,
-				    LM92_REG_TEMP_CRIT);
-		data->temp1_min = i2c_smbus_read_word_swapped(client,
-				    LM92_REG_TEMP_LOW);
-		data->temp1_max = i2c_smbus_read_word_swapped(client,
-				    LM92_REG_TEMP_HIGH);
-
+		for (i = 0; i < t_num_regs; i++) {
+			data->temp[i] =
+				i2c_smbus_read_word_swapped(client, regs[i]);
+		}
 		data->last_updated = jiffies;
 		data->valid = 1;
 	}
@@ -142,68 +145,60 @@ static struct lm92_data *lm92_update_device(struct device *dev)
 	return data;
 }
 
-#define show_temp(value) \
-static ssize_t show_##value(struct device *dev, struct device_attribute *attr, \
-			    char *buf) \
-{ \
-	struct lm92_data *data = lm92_update_device(dev); \
-	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
-}
-show_temp(temp1_input);
-show_temp(temp1_crit);
-show_temp(temp1_min);
-show_temp(temp1_max);
-
-#define set_temp(value, reg) \
-static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
-			   const char *buf, \
-	size_t count) \
-{ \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct lm92_data *data = i2c_get_clientdata(client); \
-	long val; \
-	int err = kstrtol(buf, 10, &val); \
-	if (err) \
-		return err; \
-\
-	mutex_lock(&data->update_lock); \
-	data->value = TEMP_TO_REG(val); \
-	i2c_smbus_write_word_swapped(client, reg, data->value); \
-	mutex_unlock(&data->update_lock); \
-	return count; \
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm92_data *data = lm92_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 }
-set_temp(temp1_crit, LM92_REG_TEMP_CRIT);
-set_temp(temp1_min, LM92_REG_TEMP_LOW);
-set_temp(temp1_max, LM92_REG_TEMP_HIGH);
 
-static ssize_t show_temp1_crit_hyst(struct device *dev,
-				    struct device_attribute *attr, char *buf)
+static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
+			   const char *buf, size_t count)
 {
-	struct lm92_data *data = lm92_update_device(dev);
-	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_crit)
-		       - TEMP_FROM_REG(data->temp1_hyst));
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm92_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int nr = attr->index;
+	long val;
+	int err;
+	
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = TEMP_TO_REG(val);
+	i2c_smbus_write_word_swapped(client, regs[nr], data->temp[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
 }
-static ssize_t show_temp1_max_hyst(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+
+static ssize_t show_temp_hyst(struct device *dev,
+			      struct device_attribute *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct lm92_data *data = lm92_update_device(dev);
-	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_max)
-		       - TEMP_FROM_REG(data->temp1_hyst));
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])
+		       - TEMP_FROM_REG(data->temp[t_hyst]));
 }
-static ssize_t show_temp1_min_hyst(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+
+static ssize_t show_temp_min_hyst(struct device *dev,
+				  struct device_attribute *attr, char *buf)
 {
 	struct lm92_data *data = lm92_update_device(dev);
-	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_min)
-		       + TEMP_FROM_REG(data->temp1_hyst));
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[t_min])
+		       + TEMP_FROM_REG(data->temp[t_hyst]));
 }
 
-static ssize_t set_temp1_crit_hyst(struct device *dev,
-				   struct device_attribute *attr,
-				   const char *buf, size_t count)
+static ssize_t set_temp_hyst(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm92_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm92_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	int err;
 
@@ -212,9 +207,9 @@ static ssize_t set_temp1_crit_hyst(struct device *dev,
 		return err;
 
 	mutex_lock(&data->update_lock);
-	data->temp1_hyst = TEMP_FROM_REG(data->temp1_crit) - val;
+	data->temp[t_hyst] = TEMP_FROM_REG(data->temp[attr->index]) - val;
 	i2c_smbus_write_word_swapped(client, LM92_REG_TEMP_HYST,
-				     TEMP_TO_REG(data->temp1_hyst));
+				     TEMP_TO_REG(data->temp[t_hyst]));
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -223,7 +218,7 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
 	struct lm92_data *data = lm92_update_device(dev);
-	return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp1_input));
+	return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp[t_input]));
 }
 
 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
@@ -231,26 +226,25 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 {
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	struct lm92_data *data = lm92_update_device(dev);
-	return sprintf(buf, "%d\n", (data->temp1_input >> bitnr) & 1);
+	return sprintf(buf, "%d\n", (data->temp[t_input] >> bitnr) & 1);
 }
 
-static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
-static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp1_crit,
-	set_temp1_crit);
-static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp1_crit_hyst,
-	set_temp1_crit_hyst);
-static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp1_min,
-	set_temp1_min);
-static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp1_min_hyst, NULL);
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_max,
-	set_temp1_max);
-static DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp1_max_hyst, NULL);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_crit);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,
+			  set_temp_hyst, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_min);
+static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_min_hyst, NULL);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_max);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
 
-
 /*
  * Detection and registration
  */
@@ -322,24 +316,21 @@ static int max6635_check(struct i2c_client *client)
 	return 1;
 }
 
-static struct attribute *lm92_attributes[] = {
-	&dev_attr_temp1_input.attr,
-	&dev_attr_temp1_crit.attr,
-	&dev_attr_temp1_crit_hyst.attr,
-	&dev_attr_temp1_min.attr,
+static struct attribute *lm92_attrs[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&dev_attr_temp1_min_hyst.attr,
-	&dev_attr_temp1_max.attr,
-	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&dev_attr_alarms.attr,
 	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group lm92_group = {
-	.attrs = lm92_attributes,
-};
+ATTRIBUTE_GROUPS(lm92);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int lm92_detect(struct i2c_client *new_client,
@@ -371,46 +362,24 @@ static int lm92_detect(struct i2c_client *new_client,
 static int lm92_probe(struct i2c_client *new_client,
 		      const struct i2c_device_id *id)
 {
+	struct device *hwmon_dev;
 	struct lm92_data *data;
-	int err;
 
 	data = devm_kzalloc(&new_client->dev, sizeof(struct lm92_data),
 			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(new_client, data);
+	data->client = new_client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the chipset */
 	lm92_init_client(new_client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &lm92_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, &lm92_group);
-	return err;
-}
-
-static int lm92_remove(struct i2c_client *client)
-{
-	struct lm92_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm92_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
+							   new_client->name,
+							   data, lm92_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 
@@ -431,7 +400,6 @@ static struct i2c_driver lm92_driver = {
 		.name	= "lm92",
 	},
 	.probe		= lm92_probe,
-	.remove		= lm92_remove,
 	.id_table	= lm92_id,
 	.detect		= lm92_detect,
 	.address_list	= normal_i2c,

drivers/hwmon/lm93.c

@@ -2747,10 +2747,8 @@ static int lm93_probe(struct i2c_client *client,
 	}
 
 	data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
-	if (!data) {
-		dev_dbg(&client->dev, "out of memory!\n");
+	if (!data)
 		return -ENOMEM;
-	}
 	i2c_set_clientdata(client, data);
 
 	/* housekeeping */

drivers/hwmon/ltc2945.c

@@ -1,4 +1,4 @@
-    /*
+/*
  * Driver for Linear Technology LTC2945 I2C Power Monitor
  *
  * Copyright (c) 2014 Guenter Roeck

drivers/hwmon/max1111.c

@@ -192,10 +192,8 @@ static int max1111_probe(struct spi_device *spi)
 		return err;
 
 	data = devm_kzalloc(&spi->dev, sizeof(struct max1111_data), GFP_KERNEL);
-	if (data == NULL) {
-		dev_err(&spi->dev, "failed to allocate memory\n");
+	if (data == NULL)
 		return -ENOMEM;
-	}
 
 	switch (chip) {
 	case max1110:

drivers/hwmon/max1619.c

@@ -19,13 +19,8 @@
  * 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.
  */
 
-
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -76,38 +71,14 @@ static int temp_to_reg(int val)
 	return (val < 0 ? val+0x100*1000 : val) / 1000;
 }
 
-/*
- * Functions declaration
- */
-
-static int max1619_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id);
-static int max1619_detect(struct i2c_client *client,
-			  struct i2c_board_info *info);
-static void max1619_init_client(struct i2c_client *client);
-static int max1619_remove(struct i2c_client *client);
-static struct max1619_data *max1619_update_device(struct device *dev);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id max1619_id[] = {
-	{ "max1619", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, max1619_id);
-
-static struct i2c_driver max1619_driver = {
-	.class		= I2C_CLASS_HWMON,
-	.driver = {
-		.name	= "max1619",
-	},
-	.probe		= max1619_probe,
-	.remove		= max1619_remove,
-	.id_table	= max1619_id,
-	.detect		= max1619_detect,
-	.address_list	= normal_i2c,
+enum temp_index {
+	t_input1 = 0,
+	t_input2,
+	t_low2,
+	t_high2,
+	t_crit2,
+	t_hyst2,
+	t_num_regs
 };
 
 /*
@@ -115,60 +86,92 @@ static struct i2c_driver max1619_driver = {
  */
 
 struct max1619_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 */
 
 	/* registers values */
-	u8 temp_input1; /* local */
-	u8 temp_input2, temp_low2, temp_high2; /* remote */
-	u8 temp_crit2;
-	u8 temp_hyst2;
+	u8 temp[t_num_regs];	/* index with enum temp_index */
 	u8 alarms;
 };
 
+static const u8 regs_read[t_num_regs] = {
+	[t_input1] = MAX1619_REG_R_LOCAL_TEMP,
+	[t_input2] = MAX1619_REG_R_REMOTE_TEMP,
+	[t_low2] = MAX1619_REG_R_REMOTE_LOW,
+	[t_high2] = MAX1619_REG_R_REMOTE_HIGH,
+	[t_crit2] = MAX1619_REG_R_REMOTE_CRIT,
+	[t_hyst2] = MAX1619_REG_R_TCRIT_HYST,
+};
+
+static const u8 regs_write[t_num_regs] = {
+	[t_low2] = MAX1619_REG_W_REMOTE_LOW,
+	[t_high2] = MAX1619_REG_W_REMOTE_HIGH,
+	[t_crit2] = MAX1619_REG_W_REMOTE_CRIT,
+	[t_hyst2] = MAX1619_REG_W_TCRIT_HYST,
+};
+
+static struct max1619_data *max1619_update_device(struct device *dev)
+{
+	struct max1619_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int config, i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		dev_dbg(&client->dev, "Updating max1619 data.\n");
+		for (i = 0; i < t_num_regs; i++)
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+					regs_read[i]);
+		data->alarms = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_STATUS);
+		/* If OVERT polarity is low, reverse alarm bit */
+		config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
+		if (!(config & 0x20))
+			data->alarms ^= 0x02;
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
 /*
  * Sysfs stuff
  */
 
-#define show_temp(value) \
-static ssize_t show_##value(struct device *dev, struct device_attribute *attr, \
-			    char *buf) \
-{ \
-	struct max1619_data *data = max1619_update_device(dev); \
-	return sprintf(buf, "%d\n", temp_from_reg(data->value)); \
-}
-show_temp(temp_input1);
-show_temp(temp_input2);
-show_temp(temp_low2);
-show_temp(temp_high2);
-show_temp(temp_crit2);
-show_temp(temp_hyst2);
-
-#define set_temp2(value, reg) \
-static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
-			   const char *buf, \
-	size_t count) \
-{ \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct max1619_data *data = i2c_get_clientdata(client); \
-	long val; \
-	int err = kstrtol(buf, 10, &val); \
-	if (err) \
-		return err; \
-\
-	mutex_lock(&data->update_lock); \
-	data->value = temp_to_reg(val); \
-	i2c_smbus_write_byte_data(client, reg, data->value); \
-	mutex_unlock(&data->update_lock); \
-	return count; \
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct max1619_data *data = max1619_update_device(dev);
+
+	return sprintf(buf, "%d\n", temp_from_reg(data->temp[attr->index]));
 }
 
-set_temp2(temp_low2, MAX1619_REG_W_REMOTE_LOW);
-set_temp2(temp_high2, MAX1619_REG_W_REMOTE_HIGH);
-set_temp2(temp_crit2, MAX1619_REG_W_REMOTE_CRIT);
-set_temp2(temp_hyst2, MAX1619_REG_W_TCRIT_HYST);
+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 max1619_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	long val;
+	int err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->temp[attr->index] = temp_to_reg(val);
+	i2c_smbus_write_byte_data(client, regs_write[attr->index],
+				  data->temp[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
 
 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
 			   char *buf)
@@ -185,29 +188,30 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
 }
 
-static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
-static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
-static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
-	set_temp_low2);
-static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
-	set_temp_high2);
-static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
-	set_temp_crit2);
-static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst2,
-	set_temp_hyst2);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input1);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, t_input2);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_low2);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_high2);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
+			  t_crit2);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp,
+			  set_temp, t_hyst2);
+
 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
 static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
 static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
 
-static struct attribute *max1619_attributes[] = {
-	&dev_attr_temp1_input.attr,
-	&dev_attr_temp2_input.attr,
-	&dev_attr_temp2_min.attr,
-	&dev_attr_temp2_max.attr,
-	&dev_attr_temp2_crit.attr,
-	&dev_attr_temp2_crit_hyst.attr,
+static struct attribute *max1619_attrs[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
 
 	&dev_attr_alarms.attr,
 	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
@@ -216,14 +220,7 @@ static struct attribute *max1619_attributes[] = {
 	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group max1619_group = {
-	.attrs = max1619_attributes,
-};
-
-/*
- * Real code
- */
+ATTRIBUTE_GROUPS(max1619);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int max1619_detect(struct i2c_client *client,
@@ -261,41 +258,6 @@ static int max1619_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int max1619_probe(struct i2c_client *new_client,
-			 const struct i2c_device_id *id)
-{
-	struct max1619_data *data;
-	int err;
-
-	data = devm_kzalloc(&new_client->dev, sizeof(struct max1619_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	i2c_set_clientdata(new_client, data);
-	mutex_init(&data->update_lock);
-
-	/* Initialize the MAX1619 chip */
-	max1619_init_client(new_client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &max1619_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;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&new_client->dev.kobj, &max1619_group);
-	return err;
-}
-
 static void max1619_init_client(struct i2c_client *client)
 {
 	u8 config;
@@ -311,48 +273,46 @@ static void max1619_init_client(struct i2c_client *client)
 					  config & 0xBF); /* run */
 }
 
-static int max1619_remove(struct i2c_client *client)
+static int max1619_probe(struct i2c_client *new_client,
+			 const struct i2c_device_id *id)
 {
-	struct max1619_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &max1619_group);
-
-	return 0;
-}
+	struct max1619_data *data;
+	struct device *hwmon_dev;
 
-static struct max1619_data *max1619_update_device(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max1619_data *data = i2c_get_clientdata(client);
+	data = devm_kzalloc(&new_client->dev, sizeof(struct max1619_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	mutex_lock(&data->update_lock);
+	data->client = new_client;
+	mutex_init(&data->update_lock);
 
-	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
-		dev_dbg(&client->dev, "Updating max1619 data.\n");
-		data->temp_input1 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_LOCAL_TEMP);
-		data->temp_input2 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_REMOTE_TEMP);
-		data->temp_high2 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_REMOTE_HIGH);
-		data->temp_low2 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_REMOTE_LOW);
-		data->temp_crit2 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_REMOTE_CRIT);
-		data->temp_hyst2 = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_TCRIT_HYST);
-		data->alarms = i2c_smbus_read_byte_data(client,
-					MAX1619_REG_R_STATUS);
+	/* Initialize the MAX1619 chip */
+	max1619_init_client(new_client);
 
-		data->last_updated = jiffies;
-		data->valid = 1;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
+							   new_client->name,
+							   data,
+							   max1619_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
 
-	mutex_unlock(&data->update_lock);
+static const struct i2c_device_id max1619_id[] = {
+	{ "max1619", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max1619_id);
 
-	return data;
-}
+static struct i2c_driver max1619_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "max1619",
+	},
+	.probe		= max1619_probe,
+	.id_table	= max1619_id,
+	.detect		= max1619_detect,
+	.address_list	= normal_i2c,
+};
 
 module_i2c_driver(max1619_driver);
 

drivers/hwmon/max197.c

@@ -275,10 +275,8 @@ static int max197_probe(struct platform_device *pdev)
 	}
 
 	data = devm_kzalloc(&pdev->dev, sizeof(struct max197_data), GFP_KERNEL);
-	if (!data) {
-		dev_err(&pdev->dev, "devm_kzalloc failed\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	data->pdata = pdata;
 	mutex_init(&data->lock);

drivers/hwmon/nct6683.c

@@ -0,0 +1,1457 @@
+/*
+ * nct6683 - Driver for the hardware monitoring functionality of
+ *	     Nuvoton NCT6683D eSIO
+ *
+ * Copyright (C) 2013  Guenter Roeck <linux@roeck-us.net>
+ *
+ * Derived from nct6775 driver
+ * Copyright (C) 2012, 2013  Guenter Roeck <linux@roeck-us.net>
+ *
+ * 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.
+ *
+ * Supports the following chips:
+ *
+ * Chip        #vin    #fan    #pwm    #temp  chip ID
+ * nct6683d     21(1)   16      8       32(1) 0xc730
+ *
+ * Notes:
+ *	(1) Total number of vin and temp inputs is 32.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+enum kinds { nct6683 };
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Set to one to enable detection on non-Intel boards");
+
+static const char * const nct6683_device_names[] = {
+	"nct6683",
+};
+
+static const char * const nct6683_chip_names[] = {
+	"NCT6683D",
+};
+
+#define DRVNAME "nct6683"
+
+/*
+ * Super-I/O constants and functions
+ */
+
+#define NCT6683_LD_ACPI		0x0a
+#define NCT6683_LD_HWM		0x0b
+#define NCT6683_LD_VID		0x0d
+
+#define SIO_REG_LDSEL		0x07	/* Logical device select */
+#define SIO_REG_DEVID		0x20	/* Device ID (2 bytes) */
+#define SIO_REG_ENABLE		0x30	/* Logical device enable */
+#define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
+
+#define SIO_NCT6681_ID		0xb270	/* for later */
+#define SIO_NCT6683_ID		0xc730
+#define SIO_ID_MASK		0xFFF0
+
+static inline void
+superio_outb(int ioreg, int reg, int val)
+{
+	outb(reg, ioreg);
+	outb(val, ioreg + 1);
+}
+
+static inline int
+superio_inb(int ioreg, int reg)
+{
+	outb(reg, ioreg);
+	return inb(ioreg + 1);
+}
+
+static inline void
+superio_select(int ioreg, int ld)
+{
+	outb(SIO_REG_LDSEL, ioreg);
+	outb(ld, ioreg + 1);
+}
+
+static inline int
+superio_enter(int ioreg)
+{
+	/*
+	 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
+	 */
+	if (!request_muxed_region(ioreg, 2, DRVNAME))
+		return -EBUSY;
+
+	outb(0x87, ioreg);
+	outb(0x87, ioreg);
+
+	return 0;
+}
+
+static inline void
+superio_exit(int ioreg)
+{
+	outb(0xaa, ioreg);
+	outb(0x02, ioreg);
+	outb(0x02, ioreg + 1);
+	release_region(ioreg, 2);
+}
+
+/*
+ * ISA constants
+ */
+
+#define IOREGION_ALIGNMENT	(~7)
+#define IOREGION_OFFSET		4	/* Use EC port 1 */
+#define IOREGION_LENGTH		4
+
+#define EC_PAGE_REG		0
+#define EC_INDEX_REG		1
+#define EC_DATA_REG		2
+#define EC_EVENT_REG		3
+
+/* Common and NCT6683 specific data */
+
+#define NCT6683_NUM_REG_MON		32
+#define NCT6683_NUM_REG_FAN		16
+#define NCT6683_NUM_REG_PWM		8
+
+#define NCT6683_REG_MON(x)		(0x100 + (x) * 2)
+#define NCT6683_REG_FAN_RPM(x)		(0x140 + (x) * 2)
+#define NCT6683_REG_PWM(x)		(0x160 + (x))
+
+#define NCT6683_REG_MON_STS(x)		(0x174 + (x))
+#define NCT6683_REG_IDLE(x)		(0x178 + (x))
+
+#define NCT6683_REG_FAN_STS(x)		(0x17c + (x))
+#define NCT6683_REG_FAN_ERRSTS		0x17e
+#define NCT6683_REG_FAN_INITSTS		0x17f
+
+#define NCT6683_HWM_CFG			0x180
+
+#define NCT6683_REG_MON_CFG(x)		(0x1a0 + (x))
+#define NCT6683_REG_FANIN_CFG(x)	(0x1c0 + (x))
+#define NCT6683_REG_FANOUT_CFG(x)	(0x1d0 + (x))
+
+#define NCT6683_REG_INTEL_TEMP_MAX(x)	(0x901 + (x) * 16)
+#define NCT6683_REG_INTEL_TEMP_CRIT(x)	(0x90d + (x) * 16)
+
+#define NCT6683_REG_TEMP_HYST(x)	(0x330 + (x))		/* 8 bit */
+#define NCT6683_REG_TEMP_MAX(x)		(0x350 + (x))		/* 8 bit */
+#define NCT6683_REG_MON_HIGH(x)		(0x370 + (x) * 2)	/* 8 bit */
+#define NCT6683_REG_MON_LOW(x)		(0x371 + (x) * 2)	/* 8 bit */
+
+#define NCT6683_REG_FAN_MIN(x)		(0x3b8 + (x) * 2)	/* 16 bit */
+
+#define NCT6683_REG_CUSTOMER_ID		0x602
+#define NCT6683_CUSTOMER_ID_INTEL	0x805
+
+#define NCT6683_REG_BUILD_YEAR		0x604
+#define NCT6683_REG_BUILD_MONTH		0x605
+#define NCT6683_REG_BUILD_DAY		0x606
+#define NCT6683_REG_SERIAL		0x607
+#define NCT6683_REG_VERSION_HI		0x608
+#define NCT6683_REG_VERSION_LO		0x609
+
+#define NCT6683_REG_CR_CASEOPEN		0xe8
+#define NCT6683_CR_CASEOPEN_MASK	(1 << 7)
+
+#define NCT6683_REG_CR_BEEP		0xe0
+#define NCT6683_CR_BEEP_MASK		(1 << 6)
+
+static const char *const nct6683_mon_label[] = {
+	NULL,	/* disabled */
+	"Local",
+	"Diode 0 (curr)",
+	"Diode 1 (curr)",
+	"Diode 2 (curr)",
+	"Diode 0 (volt)",
+	"Diode 1 (volt)",
+	"Diode 2 (volt)",
+	"Thermistor 14",
+	"Thermistor 15",
+	"Thermistor 16",
+	"Thermistor 0",
+	"Thermistor 1",
+	"Thermistor 2",
+	"Thermistor 3",
+	"Thermistor 4",
+	"Thermistor 5",		/* 0x10 */
+	"Thermistor 6",
+	"Thermistor 7",
+	"Thermistor 8",
+	"Thermistor 9",
+	"Thermistor 10",
+	"Thermistor 11",
+	"Thermistor 12",
+	"Thermistor 13",
+	NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+	"PECI 0.0",		/* 0x20 */
+	"PECI 1.0",
+	"PECI 2.0",
+	"PECI 3.0",
+	"PECI 0.1",
+	"PECI 1.1",
+	"PECI 2.1",
+	"PECI 3.1",
+	"PECI DIMM 0",
+	"PECI DIMM 1",
+	"PECI DIMM 2",
+	"PECI DIMM 3",
+	NULL, NULL, NULL, NULL,
+	"PCH CPU",		/* 0x30 */
+	"PCH CHIP",
+	"PCH CHIP CPU MAX",
+	"PCH MCH",
+	"PCH DIMM 0",
+	"PCH DIMM 1",
+	"PCH DIMM 2",
+	"PCH DIMM 3",
+	"SMBus 0",
+	"SMBus 1",
+	"SMBus 2",
+	"SMBus 3",
+	"SMBus 4",
+	"SMBus 5",
+	"DIMM 0",
+	"DIMM 1",
+	"DIMM 2",		/* 0x40 */
+	"DIMM 3",
+	"AMD TSI Addr 90h",
+	"AMD TSI Addr 92h",
+	"AMD TSI Addr 94h",
+	"AMD TSI Addr 96h",
+	"AMD TSI Addr 98h",
+	"AMD TSI Addr 9ah",
+	"AMD TSI Addr 9ch",
+	"AMD TSI Addr 9dh",
+	NULL, NULL, NULL, NULL, NULL, NULL,
+	"Virtual 0",		/* 0x50 */
+	"Virtual 1",
+	"Virtual 2",
+	"Virtual 3",
+	"Virtual 4",
+	"Virtual 5",
+	"Virtual 6",
+	"Virtual 7",
+	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+	"VCC",			/* 0x60 voltage sensors */
+	"VSB",
+	"AVSB",
+	"VTT",
+	"VBAT",
+	"VREF",
+	"VIN0",
+	"VIN1",
+	"VIN2",
+	"VIN3",
+	"VIN4",
+	"VIN5",
+	"VIN6",
+	"VIN7",
+	"VIN8",
+	"VIN9",
+	"VIN10",
+	"VIN11",
+	"VIN12",
+	"VIN13",
+	"VIN14",
+	"VIN15",
+	"VIN16",
+};
+
+#define NUM_MON_LABELS		ARRAY_SIZE(nct6683_mon_label)
+#define MON_VOLTAGE_START	0x60
+
+/* ------------------------------------------------------- */
+
+struct nct6683_data {
+	int addr;		/* IO base of EC space */
+	int sioreg;		/* SIO register */
+	enum kinds kind;
+	u16 customer_id;
+
+	struct device *hwmon_dev;
+	const struct attribute_group *groups[6];
+
+	int temp_num;			/* number of temperature attributes */
+	u8 temp_index[NCT6683_NUM_REG_MON];
+	u8 temp_src[NCT6683_NUM_REG_MON];
+
+	u8 in_num;			/* number of voltage attributes */
+	u8 in_index[NCT6683_NUM_REG_MON];
+	u8 in_src[NCT6683_NUM_REG_MON];
+
+	struct mutex update_lock;	/* used to protect sensor updates */
+	bool valid;			/* true if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* Voltage attribute values */
+	u8 in[3][NCT6683_NUM_REG_MON];	/* [0]=in, [1]=in_max, [2]=in_min */
+
+	/* Temperature attribute values */
+	s16 temp_in[NCT6683_NUM_REG_MON];
+	s8 temp[4][NCT6683_NUM_REG_MON];/* [0]=min, [1]=max, [2]=hyst,
+					 * [3]=crit
+					 */
+
+	/* Fan attribute values */
+	unsigned int rpm[NCT6683_NUM_REG_FAN];
+	u16 fan_min[NCT6683_NUM_REG_FAN];
+	u8 fanin_cfg[NCT6683_NUM_REG_FAN];
+	u8 fanout_cfg[NCT6683_NUM_REG_FAN];
+	u16 have_fan;			/* some fan inputs can be disabled */
+
+	u8 have_pwm;
+	u8 pwm[NCT6683_NUM_REG_PWM];
+
+#ifdef CONFIG_PM
+	/* Remember extra register values over suspend/resume */
+	u8 hwm_cfg;
+#endif
+};
+
+struct nct6683_sio_data {
+	int sioreg;
+	enum kinds kind;
+};
+
+struct sensor_device_template {
+	struct device_attribute dev_attr;
+	union {
+		struct {
+			u8 nr;
+			u8 index;
+		} s;
+		int index;
+	} u;
+	bool s2;	/* true if both index and nr are used */
+};
+
+struct sensor_device_attr_u {
+	union {
+		struct sensor_device_attribute a1;
+		struct sensor_device_attribute_2 a2;
+	} u;
+	char name[32];
+};
+
+#define __TEMPLATE_ATTR(_template, _mode, _show, _store) {	\
+	.attr = {.name = _template, .mode = _mode },		\
+	.show	= _show,					\
+	.store	= _store,					\
+}
+
+#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index)	\
+	{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store),	\
+	  .u.index = _index,						\
+	  .s2 = false }
+
+#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store,	\
+				 _nr, _index)				\
+	{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store),	\
+	  .u.s.index = _index,						\
+	  .u.s.nr = _nr,						\
+	  .s2 = true }
+
+#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index)	\
+static struct sensor_device_template sensor_dev_template_##_name	\
+	= SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store,	\
+				 _index)
+
+#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store,	\
+			  _nr, _index)					\
+static struct sensor_device_template sensor_dev_template_##_name	\
+	= SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store,	\
+				 _nr, _index)
+
+struct sensor_template_group {
+	struct sensor_device_template **templates;
+	umode_t (*is_visible)(struct kobject *, struct attribute *, int);
+	int base;
+};
+
+static struct attribute_group *
+nct6683_create_attr_group(struct device *dev, struct sensor_template_group *tg,
+			  int repeat)
+{
+	struct sensor_device_attribute_2 *a2;
+	struct sensor_device_attribute *a;
+	struct sensor_device_template **t;
+	struct sensor_device_attr_u *su;
+	struct attribute_group *group;
+	struct attribute **attrs;
+	int i, j, count;
+
+	if (repeat <= 0)
+		return ERR_PTR(-EINVAL);
+
+	t = tg->templates;
+	for (count = 0; *t; t++, count++)
+		;
+
+	if (count == 0)
+		return ERR_PTR(-EINVAL);
+
+	group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
+	if (group == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
+			     GFP_KERNEL);
+	if (attrs == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
+			  GFP_KERNEL);
+	if (su == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	group->attrs = attrs;
+	group->is_visible = tg->is_visible;
+
+	for (i = 0; i < repeat; i++) {
+		t = tg->templates;
+		for (j = 0; *t != NULL; j++) {
+			snprintf(su->name, sizeof(su->name),
+				 (*t)->dev_attr.attr.name, tg->base + i);
+			if ((*t)->s2) {
+				a2 = &su->u.a2;
+				a2->dev_attr.attr.name = su->name;
+				a2->nr = (*t)->u.s.nr + i;
+				a2->index = (*t)->u.s.index;
+				a2->dev_attr.attr.mode =
+				  (*t)->dev_attr.attr.mode;
+				a2->dev_attr.show = (*t)->dev_attr.show;
+				a2->dev_attr.store = (*t)->dev_attr.store;
+				*attrs = &a2->dev_attr.attr;
+			} else {
+				a = &su->u.a1;
+				a->dev_attr.attr.name = su->name;
+				a->index = (*t)->u.index + i;
+				a->dev_attr.attr.mode =
+				  (*t)->dev_attr.attr.mode;
+				a->dev_attr.show = (*t)->dev_attr.show;
+				a->dev_attr.store = (*t)->dev_attr.store;
+				*attrs = &a->dev_attr.attr;
+			}
+			attrs++;
+			su++;
+			t++;
+		}
+	}
+
+	return group;
+}
+
+/* LSB is 16 mV, except for the following sources, where it is 32 mV */
+#define MON_SRC_VCC	0x60
+#define MON_SRC_VSB	0x61
+#define MON_SRC_AVSB	0x62
+#define MON_SRC_VBAT	0x64
+
+static inline long in_from_reg(u16 reg, u8 src)
+{
+	int scale = 16;
+
+	if (src == MON_SRC_VCC || src == MON_SRC_VSB || src == MON_SRC_AVSB ||
+	    src == MON_SRC_VBAT)
+		scale <<= 1;
+	return reg * scale;
+}
+
+static inline u16 in_to_reg(u32 val, u8 src)
+{
+	int scale = 16;
+
+	if (src == MON_SRC_VCC || src == MON_SRC_VSB || src == MON_SRC_AVSB ||
+	    src == MON_SRC_VBAT)
+		scale <<= 1;
+
+	return clamp_val(DIV_ROUND_CLOSEST(val, scale), 0, 127);
+}
+
+static u16 nct6683_read(struct nct6683_data *data, u16 reg)
+{
+	int res;
+
+	outb_p(0xff, data->addr + EC_PAGE_REG);		/* unlock */
+	outb_p(reg >> 8, data->addr + EC_PAGE_REG);
+	outb_p(reg & 0xff, data->addr + EC_INDEX_REG);
+	res = inb_p(data->addr + EC_DATA_REG);
+	return res;
+}
+
+static u16 nct6683_read16(struct nct6683_data *data, u16 reg)
+{
+	return (nct6683_read(data, reg) << 8) | nct6683_read(data, reg + 1);
+}
+
+static void nct6683_write(struct nct6683_data *data, u16 reg, u16 value)
+{
+	outb_p(0xff, data->addr + EC_PAGE_REG);		/* unlock */
+	outb_p(reg >> 8, data->addr + EC_PAGE_REG);
+	outb_p(reg & 0xff, data->addr + EC_INDEX_REG);
+	outb_p(value & 0xff, data->addr + EC_DATA_REG);
+}
+
+static int get_in_reg(struct nct6683_data *data, int nr, int index)
+{
+	int ch = data->in_index[index];
+	int reg = -EINVAL;
+
+	switch (nr) {
+	case 0:
+		reg = NCT6683_REG_MON(ch);
+		break;
+	case 1:
+		if (data->customer_id != NCT6683_CUSTOMER_ID_INTEL)
+			reg = NCT6683_REG_MON_LOW(ch);
+		break;
+	case 2:
+		if (data->customer_id != NCT6683_CUSTOMER_ID_INTEL)
+			reg = NCT6683_REG_MON_HIGH(ch);
+		break;
+	default:
+		break;
+	}
+	return reg;
+}
+
+static int get_temp_reg(struct nct6683_data *data, int nr, int index)
+{
+	int ch = data->temp_index[index];
+	int reg = -EINVAL;
+
+	switch (data->customer_id) {
+	case NCT6683_CUSTOMER_ID_INTEL:
+		switch (nr) {
+		default:
+		case 1:	/* max */
+			reg = NCT6683_REG_INTEL_TEMP_MAX(ch);
+			break;
+		case 3:	/* crit */
+			reg = NCT6683_REG_INTEL_TEMP_CRIT(ch);
+			break;
+		}
+		break;
+	default:
+		switch (nr) {
+		default:
+		case 0:	/* min */
+			reg = NCT6683_REG_MON_LOW(ch);
+			break;
+		case 1:	/* max */
+			reg = NCT6683_REG_TEMP_MAX(ch);
+			break;
+		case 2:	/* hyst */
+			reg = NCT6683_REG_TEMP_HYST(ch);
+			break;
+		case 3:	/* crit */
+			reg = NCT6683_REG_MON_HIGH(ch);
+			break;
+		}
+		break;
+	}
+	return reg;
+}
+
+static void nct6683_update_pwm(struct device *dev)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int i;
+
+	for (i = 0; i < NCT6683_NUM_REG_PWM; i++) {
+		if (!(data->have_pwm & (1 << i)))
+			continue;
+		data->pwm[i] = nct6683_read(data, NCT6683_REG_PWM(i));
+	}
+}
+
+static struct nct6683_data *nct6683_update_device(struct device *dev)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int i, j;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		/* Measured voltages and limits */
+		for (i = 0; i < data->in_num; i++) {
+			for (j = 0; j < 3; j++) {
+				int reg = get_in_reg(data, j, i);
+
+				if (reg >= 0)
+					data->in[j][i] =
+						nct6683_read(data, reg);
+			}
+		}
+
+		/* Measured temperatures and limits */
+		for (i = 0; i < data->temp_num; i++) {
+			u8 ch = data->temp_index[i];
+
+			data->temp_in[i] = nct6683_read16(data,
+							  NCT6683_REG_MON(ch));
+			for (j = 0; j < 4; j++) {
+				int reg = get_temp_reg(data, j, i);
+
+				if (reg >= 0)
+					data->temp[j][i] =
+						nct6683_read(data, reg);
+			}
+		}
+
+		/* Measured fan speeds and limits */
+		for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
+			if (!(data->have_fan & (1 << i)))
+				continue;
+
+			data->rpm[i] = nct6683_read16(data,
+						NCT6683_REG_FAN_RPM(i));
+			data->fan_min[i] = nct6683_read16(data,
+						NCT6683_REG_FAN_MIN(i));
+		}
+
+		nct6683_update_pwm(dev);
+
+		data->last_updated = jiffies;
+		data->valid = true;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/*
+ * Sysfs callback functions
+ */
+static ssize_t
+show_in_label(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int nr = sattr->index;
+
+	return sprintf(buf, "%s\n", nct6683_mon_label[data->in_src[nr]]);
+}
+
+static ssize_t
+show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int index = sattr->index;
+	int nr = sattr->nr;
+
+	return sprintf(buf, "%ld\n",
+		       in_from_reg(data->in[index][nr], data->in_index[index]));
+}
+
+static umode_t nct6683_in_is_visible(struct kobject *kobj,
+				     struct attribute *attr, int index)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int nr = index % 4;	/* attribute */
+
+	/*
+	 * Voltage limits exist for Intel boards,
+	 * but register location and encoding is unknown
+	 */
+	if ((nr == 2 || nr == 3) &&
+	    data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
+		return 0;
+
+	return attr->mode;
+}
+
+SENSOR_TEMPLATE(in_label, "in%d_label", S_IRUGO, show_in_label, NULL, 0);
+SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
+SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IRUGO, show_in_reg, NULL, 0, 1);
+SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IRUGO, show_in_reg, NULL, 0, 2);
+
+static struct sensor_device_template *nct6683_attributes_in_template[] = {
+	&sensor_dev_template_in_label,
+	&sensor_dev_template_in_input,
+	&sensor_dev_template_in_min,
+	&sensor_dev_template_in_max,
+	NULL
+};
+
+static struct sensor_template_group nct6683_in_template_group = {
+	.templates = nct6683_attributes_in_template,
+	.is_visible = nct6683_in_is_visible,
+};
+
+static ssize_t
+show_fan(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+
+	return sprintf(buf, "%d\n", data->rpm[sattr->index]);
+}
+
+static ssize_t
+show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct nct6683_data *data = nct6683_update_device(dev);
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	int nr = sattr->index;
+
+	return sprintf(buf, "%d\n", data->fan_min[nr]);
+}
+
+static ssize_t
+show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		       ((data->fanin_cfg[sattr->index] >> 5) & 0x03) + 1);
+}
+
+static umode_t nct6683_fan_is_visible(struct kobject *kobj,
+				      struct attribute *attr, int index)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int fan = index / 3;	/* fan index */
+	int nr = index % 3;	/* attribute index */
+
+	if (!(data->have_fan & (1 << fan)))
+		return 0;
+
+	/*
+	 * Intel may have minimum fan speed limits,
+	 * but register location and encoding are unknown.
+	 */
+	if (nr == 2 && data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
+		return 0;
+
+	return attr->mode;
+}
+
+SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
+SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IRUGO, show_fan_pulses, NULL, 0);
+SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IRUGO, show_fan_min, NULL, 0);
+
+/*
+ * nct6683_fan_is_visible uses the index into the following array
+ * to determine if attributes should be created or not.
+ * Any change in order or content must be matched.
+ */
+static struct sensor_device_template *nct6683_attributes_fan_template[] = {
+	&sensor_dev_template_fan_input,
+	&sensor_dev_template_fan_pulses,
+	&sensor_dev_template_fan_min,
+	NULL
+};
+
+static struct sensor_template_group nct6683_fan_template_group = {
+	.templates = nct6683_attributes_fan_template,
+	.is_visible = nct6683_fan_is_visible,
+	.base = 1,
+};
+
+static ssize_t
+show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int nr = sattr->index;
+
+	return sprintf(buf, "%s\n", nct6683_mon_label[data->temp_src[nr]]);
+}
+
+static ssize_t
+show_temp8(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int index = sattr->index;
+	int nr = sattr->nr;
+
+	return sprintf(buf, "%d\n", data->temp[index][nr] * 1000);
+}
+
+static ssize_t
+show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int nr = sattr->index;
+	int temp = data->temp[1][nr] - data->temp[2][nr];
+
+	return sprintf(buf, "%d\n", temp * 1000);
+}
+
+static ssize_t
+show_temp16(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	struct nct6683_data *data = nct6683_update_device(dev);
+	int index = sattr->index;
+
+	return sprintf(buf, "%d\n", (data->temp_in[index] / 128) * 500);
+}
+
+/*
+ * Temperature sensor type is determined by temperature source
+ * and can not be modified.
+ * 0x02..0x07: Thermal diode
+ * 0x08..0x18: Thermistor
+ * 0x20..0x2b: Intel PECI
+ * 0x42..0x49: AMD TSI
+ * Others are unspecified (not visible)
+ */
+
+static int get_temp_type(u8 src)
+{
+	if (src >= 0x02 && src <= 0x07)
+		return 3;	/* thermal diode */
+	else if (src >= 0x08 && src <= 0x18)
+		return 4;	/* thermistor */
+	else if (src >= 0x20 && src <= 0x2b)
+		return 6;	/* PECI */
+	else if (src >= 0x42 && src <= 0x49)
+		return 5;
+
+	return 0;
+}
+
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct nct6683_data *data = nct6683_update_device(dev);
+	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+	int nr = sattr->index;
+	return sprintf(buf, "%d\n", get_temp_type(data->temp_src[nr]));
+}
+
+static umode_t nct6683_temp_is_visible(struct kobject *kobj,
+				       struct attribute *attr, int index)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int temp = index / 7;	/* temp index */
+	int nr = index % 7;	/* attribute index */
+
+	/*
+	 * Intel does not have low temperature limits or temperature hysteresis
+	 * registers, or at least register location and encoding is unknown.
+	 */
+	if ((nr == 2 || nr == 4) &&
+	    data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
+		return 0;
+
+	if (nr == 6 && get_temp_type(data->temp_src[temp]) == 0)
+		return 0;				/* type */
+
+	return attr->mode;
+}
+
+SENSOR_TEMPLATE(temp_input, "temp%d_input", S_IRUGO, show_temp16, NULL, 0);
+SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
+SENSOR_TEMPLATE_2(temp_min, "temp%d_min", S_IRUGO, show_temp8, NULL, 0, 0);
+SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO, show_temp8, NULL, 0, 1);
+SENSOR_TEMPLATE(temp_max_hyst, "temp%d_max_hyst", S_IRUGO, show_temp_hyst, NULL,
+		0);
+SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO, show_temp8, NULL, 0, 3);
+SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO, show_temp_type, NULL, 0);
+
+/*
+ * nct6683_temp_is_visible uses the index into the following array
+ * to determine if attributes should be created or not.
+ * Any change in order or content must be matched.
+ */
+static struct sensor_device_template *nct6683_attributes_temp_template[] = {
+	&sensor_dev_template_temp_input,
+	&sensor_dev_template_temp_label,
+	&sensor_dev_template_temp_min,		/* 2 */
+	&sensor_dev_template_temp_max,		/* 3 */
+	&sensor_dev_template_temp_max_hyst,	/* 4 */
+	&sensor_dev_template_temp_crit,		/* 5 */
+	&sensor_dev_template_temp_type,		/* 6 */
+	NULL
+};
+
+static struct sensor_template_group nct6683_temp_template_group = {
+	.templates = nct6683_attributes_temp_template,
+	.is_visible = nct6683_temp_is_visible,
+	.base = 1,
+};
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct nct6683_data *data = nct6683_update_device(dev);
+	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+	int index = sattr->index;
+
+	return sprintf(buf, "%d\n", data->pwm[index]);
+}
+
+SENSOR_TEMPLATE(pwm, "pwm%d", S_IRUGO, show_pwm, NULL, 0);
+
+static umode_t nct6683_pwm_is_visible(struct kobject *kobj,
+				      struct attribute *attr, int index)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int pwm = index;	/* pwm index */
+
+	if (!(data->have_pwm & (1 << pwm)))
+		return 0;
+
+	return attr->mode;
+}
+
+static struct sensor_device_template *nct6683_attributes_pwm_template[] = {
+	&sensor_dev_template_pwm,
+	NULL
+};
+
+static struct sensor_template_group nct6683_pwm_template_group = {
+	.templates = nct6683_attributes_pwm_template,
+	.is_visible = nct6683_pwm_is_visible,
+	.base = 1,
+};
+
+static ssize_t
+show_global_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int ret;
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+
+	ret = superio_enter(data->sioreg);
+	if (ret)
+		goto error;
+	superio_select(data->sioreg, NCT6683_LD_HWM);
+	reg = superio_inb(data->sioreg, NCT6683_REG_CR_BEEP);
+	superio_exit(data->sioreg);
+
+	mutex_unlock(&data->update_lock);
+
+	return sprintf(buf, "%u\n", !!(reg & NCT6683_CR_BEEP_MASK));
+
+error:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t
+store_global_beep(struct device *dev, struct device_attribute *attr,
+		  const char *buf, size_t count)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	u8 reg;
+	int ret;
+
+	if (kstrtoul(buf, 10, &val) || (val != 0 && val != 1))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+
+	ret = superio_enter(data->sioreg);
+	if (ret) {
+		count = ret;
+		goto error;
+	}
+
+	superio_select(data->sioreg, NCT6683_LD_HWM);
+	reg = superio_inb(data->sioreg, NCT6683_REG_CR_BEEP);
+	if (val)
+		reg |= NCT6683_CR_BEEP_MASK;
+	else
+		reg &= ~NCT6683_CR_BEEP_MASK;
+	superio_outb(data->sioreg, NCT6683_REG_CR_BEEP, reg);
+	superio_exit(data->sioreg);
+error:
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Case open detection */
+
+static ssize_t
+show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	int ret;
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+
+	ret = superio_enter(data->sioreg);
+	if (ret)
+		goto error;
+	superio_select(data->sioreg, NCT6683_LD_ACPI);
+	reg = superio_inb(data->sioreg, NCT6683_REG_CR_CASEOPEN);
+	superio_exit(data->sioreg);
+
+	mutex_unlock(&data->update_lock);
+
+	return sprintf(buf, "%u\n", !(reg & NCT6683_CR_CASEOPEN_MASK));
+
+error:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t
+clear_caseopen(struct device *dev, struct device_attribute *attr,
+	       const char *buf, size_t count)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	u8 reg;
+	int ret;
+
+	if (kstrtoul(buf, 10, &val) || val != 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+
+	/*
+	 * Use CR registers to clear caseopen status.
+	 * Caseopen is activ low, clear by writing 1 into the register.
+	 */
+
+	ret = superio_enter(data->sioreg);
+	if (ret) {
+		count = ret;
+		goto error;
+	}
+
+	superio_select(data->sioreg, NCT6683_LD_ACPI);
+	reg = superio_inb(data->sioreg, NCT6683_REG_CR_CASEOPEN);
+	reg |= NCT6683_CR_CASEOPEN_MASK;
+	superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
+	reg &= ~NCT6683_CR_CASEOPEN_MASK;
+	superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
+	superio_exit(data->sioreg);
+
+	data->valid = false;	/* Force cache refresh */
+error:
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
+		   clear_caseopen);
+static DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_global_beep,
+		   store_global_beep);
+
+static struct attribute *nct6683_attributes_other[] = {
+	&dev_attr_intrusion0_alarm.attr,
+	&dev_attr_beep_enable.attr,
+	NULL
+};
+
+static const struct attribute_group nct6683_group_other = {
+	.attrs = nct6683_attributes_other,
+};
+
+/* Get the monitoring functions started */
+static inline void nct6683_init_device(struct nct6683_data *data)
+{
+	u8 tmp;
+
+	/* Start hardware monitoring if needed */
+	tmp = nct6683_read(data, NCT6683_HWM_CFG);
+	if (!(tmp & 0x80))
+		nct6683_write(data, NCT6683_HWM_CFG, tmp | 0x80);
+}
+
+/*
+ * There are a total of 24 fan inputs. Each can be configured as input
+ * or as output. A maximum of 16 inputs and 8 outputs is configurable.
+ */
+static void
+nct6683_setup_fans(struct nct6683_data *data)
+{
+	int i;
+	u8 reg;
+
+	for (i = 0; i < NCT6683_NUM_REG_FAN; i++) {
+		reg = nct6683_read(data, NCT6683_REG_FANIN_CFG(i));
+		if (reg & 0x80)
+			data->have_fan |= 1 << i;
+		data->fanin_cfg[i] = reg;
+	}
+	for (i = 0; i < NCT6683_NUM_REG_PWM; i++) {
+		reg = nct6683_read(data, NCT6683_REG_FANOUT_CFG(i));
+		if (reg & 0x80)
+			data->have_pwm |= 1 << i;
+		data->fanout_cfg[i] = reg;
+	}
+}
+
+/*
+ * Translation from monitoring register to temperature and voltage attributes
+ * ==========================================================================
+ *
+ * There are a total of 32 monitoring registers. Each can be assigned to either
+ * a temperature or voltage monitoring source.
+ * NCT6683_REG_MON_CFG(x) defines assignment for each monitoring source.
+ *
+ * Temperature and voltage attribute mapping is determined by walking through
+ * the NCT6683_REG_MON_CFG registers. If the assigned source is
+ * a temperature, temp_index[n] is set to the monitor register index, and
+ * temp_src[n] is set to the temperature source. If the assigned source is
+ * a voltage, the respective values are stored in in_index[] and in_src[],
+ * respectively.
+ */
+
+static void nct6683_setup_sensors(struct nct6683_data *data)
+{
+	u8 reg;
+	int i;
+
+	data->temp_num = 0;
+	data->in_num = 0;
+	for (i = 0; i < NCT6683_NUM_REG_MON; i++) {
+		reg = nct6683_read(data, NCT6683_REG_MON_CFG(i)) & 0x7f;
+		/* Ignore invalid assignments */
+		if (reg >= NUM_MON_LABELS)
+			continue;
+		/* Skip if disabled or reserved */
+		if (nct6683_mon_label[reg] == NULL)
+			continue;
+		if (reg < MON_VOLTAGE_START) {
+			data->temp_index[data->temp_num] = i;
+			data->temp_src[data->temp_num] = reg;
+			data->temp_num++;
+		} else {
+			data->in_index[data->in_num] = i;
+			data->in_src[data->in_num] = reg;
+			data->in_num++;
+		}
+	}
+}
+
+static int nct6683_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct nct6683_sio_data *sio_data = dev->platform_data;
+	struct attribute_group *group;
+	struct nct6683_data *data;
+	struct device *hwmon_dev;
+	struct resource *res;
+	int groups = 0;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!devm_request_region(dev, res->start, IOREGION_LENGTH, DRVNAME))
+		return -EBUSY;
+
+	data = devm_kzalloc(dev, sizeof(struct nct6683_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->kind = sio_data->kind;
+	data->sioreg = sio_data->sioreg;
+	data->addr = res->start;
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	data->customer_id = nct6683_read16(data, NCT6683_REG_CUSTOMER_ID);
+
+	nct6683_init_device(data);
+	nct6683_setup_fans(data);
+	nct6683_setup_sensors(data);
+
+	/* Register sysfs hooks */
+
+	if (data->have_pwm) {
+		group = nct6683_create_attr_group(dev,
+						  &nct6683_pwm_template_group,
+						  fls(data->have_pwm));
+		if (IS_ERR(group))
+			return PTR_ERR(group);
+		data->groups[groups++] = group;
+	}
+
+	if (data->in_num) {
+		group = nct6683_create_attr_group(dev,
+						  &nct6683_in_template_group,
+						  data->in_num);
+		if (IS_ERR(group))
+			return PTR_ERR(group);
+		data->groups[groups++] = group;
+	}
+
+	if (data->have_fan) {
+		group = nct6683_create_attr_group(dev,
+						  &nct6683_fan_template_group,
+						  fls(data->have_fan));
+		if (IS_ERR(group))
+			return PTR_ERR(group);
+		data->groups[groups++] = group;
+	}
+
+	if (data->temp_num) {
+		group = nct6683_create_attr_group(dev,
+						  &nct6683_temp_template_group,
+						  data->temp_num);
+		if (IS_ERR(group))
+			return PTR_ERR(group);
+		data->groups[groups++] = group;
+	}
+	data->groups[groups++] = &nct6683_group_other;
+
+	dev_info(dev, "%s EC firmware version %d.%d build %02x/%02x/%02x\n",
+		 nct6683_chip_names[data->kind],
+		 nct6683_read(data, NCT6683_REG_VERSION_HI),
+		 nct6683_read(data, NCT6683_REG_VERSION_LO),
+		 nct6683_read(data, NCT6683_REG_BUILD_MONTH),
+		 nct6683_read(data, NCT6683_REG_BUILD_DAY),
+		 nct6683_read(data, NCT6683_REG_BUILD_YEAR));
+
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+			nct6683_device_names[data->kind], data, data->groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+#ifdef CONFIG_PM
+static int nct6683_suspend(struct device *dev)
+{
+	struct nct6683_data *data = nct6683_update_device(dev);
+
+	mutex_lock(&data->update_lock);
+	data->hwm_cfg = nct6683_read(data, NCT6683_HWM_CFG);
+	mutex_unlock(&data->update_lock);
+
+	return 0;
+}
+
+static int nct6683_resume(struct device *dev)
+{
+	struct nct6683_data *data = dev_get_drvdata(dev);
+
+	mutex_lock(&data->update_lock);
+
+	nct6683_write(data, NCT6683_HWM_CFG, data->hwm_cfg);
+
+	/* Force re-reading all values */
+	data->valid = false;
+	mutex_unlock(&data->update_lock);
+
+	return 0;
+}
+
+static const struct dev_pm_ops nct6683_dev_pm_ops = {
+	.suspend = nct6683_suspend,
+	.resume = nct6683_resume,
+	.freeze = nct6683_suspend,
+	.restore = nct6683_resume,
+};
+
+#define NCT6683_DEV_PM_OPS	(&nct6683_dev_pm_ops)
+#else
+#define NCT6683_DEV_PM_OPS	NULL
+#endif /* CONFIG_PM */
+
+static struct platform_driver nct6683_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+		.pm	= NCT6683_DEV_PM_OPS,
+	},
+	.probe		= nct6683_probe,
+};
+
+static int __init nct6683_find(int sioaddr, struct nct6683_sio_data *sio_data)
+{
+	const char *board_vendor;
+	int addr;
+	u16 val;
+	int err;
+
+	/*
+	 * Only run on Intel boards unless the 'force' module parameter is set
+	 */
+	if (!force) {
+		board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+		if (!board_vendor || strcmp(board_vendor, "Intel Corporation"))
+			return -ENODEV;
+	}
+
+	err = superio_enter(sioaddr);
+	if (err)
+		return err;
+
+	val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+	       | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+
+	switch (val & SIO_ID_MASK) {
+	case SIO_NCT6683_ID:
+		sio_data->kind = nct6683;
+		break;
+	default:
+		if (val != 0xffff)
+			pr_debug("unsupported chip ID: 0x%04x\n", val);
+		goto fail;
+	}
+
+	/* We have a known chip, find the HWM I/O address */
+	superio_select(sioaddr, NCT6683_LD_HWM);
+	val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
+	    | superio_inb(sioaddr, SIO_REG_ADDR + 1);
+	addr = val & IOREGION_ALIGNMENT;
+	if (addr == 0) {
+		pr_err("EC base I/O port unconfigured\n");
+		goto fail;
+	}
+
+	/* Activate logical device if needed */
+	val = superio_inb(sioaddr, SIO_REG_ENABLE);
+	if (!(val & 0x01)) {
+		pr_err("EC is disabled\n");
+		goto fail;
+	}
+
+	superio_exit(sioaddr);
+	pr_info("Found %s or compatible chip at %#x:%#x\n",
+		nct6683_chip_names[sio_data->kind], sioaddr, addr);
+	sio_data->sioreg = sioaddr;
+
+	return addr;
+
+fail:
+	superio_exit(sioaddr);
+	return -ENODEV;
+}
+
+/*
+ * when Super-I/O functions move to a separate file, the Super-I/O
+ * bus will manage the lifetime of the device and this module will only keep
+ * track of the nct6683 driver. But since we use platform_device_alloc(), we
+ * must keep track of the device
+ */
+static struct platform_device *pdev[2];
+
+static int __init sensors_nct6683_init(void)
+{
+	struct nct6683_sio_data sio_data;
+	int sioaddr[2] = { 0x2e, 0x4e };
+	struct resource res;
+	bool found = false;
+	int address;
+	int i, err;
+
+	err = platform_driver_register(&nct6683_driver);
+	if (err)
+		return err;
+
+	/*
+	 * initialize sio_data->kind and sio_data->sioreg.
+	 *
+	 * when Super-I/O functions move to a separate file, the Super-I/O
+	 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
+	 * nct6683 hardware monitor, and call probe()
+	 */
+	for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+		address = nct6683_find(sioaddr[i], &sio_data);
+		if (address <= 0)
+			continue;
+
+		found = true;
+
+		pdev[i] = platform_device_alloc(DRVNAME, address);
+		if (!pdev[i]) {
+			err = -ENOMEM;
+			goto exit_device_unregister;
+		}
+
+		err = platform_device_add_data(pdev[i], &sio_data,
+					       sizeof(struct nct6683_sio_data));
+		if (err)
+			goto exit_device_put;
+
+		memset(&res, 0, sizeof(res));
+		res.name = DRVNAME;
+		res.start = address + IOREGION_OFFSET;
+		res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
+		res.flags = IORESOURCE_IO;
+
+		err = acpi_check_resource_conflict(&res);
+		if (err) {
+			platform_device_put(pdev[i]);
+			pdev[i] = NULL;
+			continue;
+		}
+
+		err = platform_device_add_resources(pdev[i], &res, 1);
+		if (err)
+			goto exit_device_put;
+
+		/* platform_device_add calls probe() */
+		err = platform_device_add(pdev[i]);
+		if (err)
+			goto exit_device_put;
+	}
+	if (!found) {
+		err = -ENODEV;
+		goto exit_unregister;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev[i]);
+exit_device_unregister:
+	while (--i >= 0) {
+		if (pdev[i])
+			platform_device_unregister(pdev[i]);
+	}
+exit_unregister:
+	platform_driver_unregister(&nct6683_driver);
+	return err;
+}
+
+static void __exit sensors_nct6683_exit(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+		if (pdev[i])
+			platform_device_unregister(pdev[i]);
+	}
+	platform_driver_unregister(&nct6683_driver);
+}
+
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
+MODULE_DESCRIPTION("NCT6683D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_nct6683_init);
+module_exit(sensors_nct6683_exit);

drivers/hwmon/nct6775.c

@@ -4160,7 +4160,7 @@ static int __init sensors_nct6775_init(void)
 		pdev[i] = platform_device_alloc(DRVNAME, address);
 		if (!pdev[i]) {
 			err = -ENOMEM;
-			goto exit_device_put;
+			goto exit_device_unregister;
 		}
 
 		err = platform_device_add_data(pdev[i], &sio_data,
@@ -4198,9 +4198,11 @@ static int __init sensors_nct6775_init(void)
 	return 0;
 
 exit_device_put:
-	for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+	platform_device_put(pdev[i]);
+exit_device_unregister:
+	while (--i >= 0) {
 		if (pdev[i])
-			platform_device_put(pdev[i]);
+			platform_device_unregister(pdev[i]);
 	}
 exit_unregister:
 	platform_driver_unregister(&nct6775_driver);

drivers/hwmon/pc87427.c

@@ -1081,10 +1081,8 @@ static int pc87427_probe(struct platform_device *pdev)
 
 	data = devm_kzalloc(&pdev->dev, sizeof(struct pc87427_data),
 			    GFP_KERNEL);
-	if (!data) {
-		pr_err("Out of memory\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	data->address[0] = sio_data->address[0];
 	data->address[1] = sio_data->address[1];

drivers/hwmon/s3c-hwmon.c

@@ -285,10 +285,8 @@ static int s3c_hwmon_probe(struct platform_device *dev)
 	}
 
 	hwmon = devm_kzalloc(&dev->dev, sizeof(struct s3c_hwmon), GFP_KERNEL);
-	if (hwmon == NULL) {
-		dev_err(&dev->dev, "no memory\n");
+	if (hwmon == NULL)
 		return -ENOMEM;
-	}
 
 	platform_set_drvdata(dev, hwmon);
 

drivers/hwmon/tmp102.c

@@ -51,6 +51,7 @@
 #define	TMP102_THIGH_REG		0x03
 
 struct tmp102 {
+	struct i2c_client *client;
 	struct device *hwmon_dev;
 	struct thermal_zone_device *tz;
 	struct mutex lock;
@@ -77,9 +78,10 @@ static const u8 tmp102_reg[] = {
 	TMP102_THIGH_REG,
 };
 
-static struct tmp102 *tmp102_update_device(struct i2c_client *client)
+static struct tmp102 *tmp102_update_device(struct device *dev)
 {
-	struct tmp102 *tmp102 = i2c_get_clientdata(client);
+	struct tmp102 *tmp102 = dev_get_drvdata(dev);
+	struct i2c_client *client = tmp102->client;
 
 	mutex_lock(&tmp102->lock);
 	if (time_after(jiffies, tmp102->last_update + HZ / 3)) {
@@ -98,7 +100,7 @@ static struct tmp102 *tmp102_update_device(struct i2c_client *client)
 
 static int tmp102_read_temp(void *dev, long *temp)
 {
-	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
+	struct tmp102 *tmp102 = tmp102_update_device(dev);
 
 	*temp = tmp102->temp[0];
 
@@ -110,7 +112,7 @@ static ssize_t tmp102_show_temp(struct device *dev,
 				char *buf)
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
-	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
+	struct tmp102 *tmp102 = tmp102_update_device(dev);
 
 	return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
 }
@@ -120,8 +122,8 @@ static ssize_t tmp102_set_temp(struct device *dev,
 			       const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp102 *tmp102 = i2c_get_clientdata(client);
+	struct tmp102 *tmp102 = dev_get_drvdata(dev);
+	struct i2c_client *client = tmp102->client;
 	long val;
 	int status;
 
@@ -145,16 +147,13 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, tmp102_show_temp,
 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp102_show_temp,
 			  tmp102_set_temp, 2);
 
-static struct attribute *tmp102_attributes[] = {
+static struct attribute *tmp102_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group tmp102_attr_group = {
-	.attrs = tmp102_attributes,
-};
+ATTRIBUTE_GROUPS(tmp102);
 
 #define TMP102_CONFIG  (TMP102_CONF_TM | TMP102_CONF_EM | TMP102_CONF_CR1)
 #define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 | TMP102_CONF_R1 | TMP102_CONF_AL)
@@ -162,72 +161,68 @@ static const struct attribute_group tmp102_attr_group = {
 static int tmp102_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct tmp102 *tmp102;
 	int status;
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_WORD_DATA)) {
-		dev_err(&client->dev,
+		dev_err(dev,
 			"adapter doesn't support SMBus word transactions\n");
 		return -ENODEV;
 	}
 
-	tmp102 = devm_kzalloc(&client->dev, sizeof(*tmp102), GFP_KERNEL);
+	tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL);
 	if (!tmp102)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, tmp102);
+	tmp102->client = client;
 
 	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
 	if (status < 0) {
-		dev_err(&client->dev, "error reading config register\n");
+		dev_err(dev, "error reading config register\n");
 		return status;
 	}
 	tmp102->config_orig = status;
 	status = i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
 					      TMP102_CONFIG);
 	if (status < 0) {
-		dev_err(&client->dev, "error writing config register\n");
+		dev_err(dev, "error writing config register\n");
 		goto fail_restore_config;
 	}
 	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
 	if (status < 0) {
-		dev_err(&client->dev, "error reading config register\n");
+		dev_err(dev, "error reading config register\n");
 		goto fail_restore_config;
 	}
 	status &= ~TMP102_CONFIG_RD_ONLY;
 	if (status != TMP102_CONFIG) {
-		dev_err(&client->dev, "config settings did not stick\n");
+		dev_err(dev, "config settings did not stick\n");
 		status = -ENODEV;
 		goto fail_restore_config;
 	}
 	tmp102->last_update = jiffies - HZ;
 	mutex_init(&tmp102->lock);
 
-	status = sysfs_create_group(&client->dev.kobj, &tmp102_attr_group);
-	if (status) {
-		dev_dbg(&client->dev, "could not create sysfs files\n");
+	hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+						      tmp102, tmp102_groups);
+	if (IS_ERR(hwmon_dev)) {
+		dev_dbg(dev, "unable to register hwmon device\n");
+		status = PTR_ERR(hwmon_dev);
 		goto fail_restore_config;
 	}
-	tmp102->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(tmp102->hwmon_dev)) {
-		dev_dbg(&client->dev, "unable to register hwmon device\n");
-		status = PTR_ERR(tmp102->hwmon_dev);
-		goto fail_remove_sysfs;
-	}
-
-	tmp102->tz = thermal_zone_of_sensor_register(&client->dev, 0,
-						     &client->dev,
+	tmp102->hwmon_dev = hwmon_dev;
+	tmp102->tz = thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
 						     tmp102_read_temp, NULL);
 	if (IS_ERR(tmp102->tz))
 		tmp102->tz = NULL;
 
-	dev_info(&client->dev, "initialized\n");
+	dev_info(dev, "initialized\n");
 
 	return 0;
 
-fail_remove_sysfs:
-	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
 fail_restore_config:
 	i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
 				     tmp102->config_orig);
@@ -238,9 +233,8 @@ static int tmp102_remove(struct i2c_client *client)
 {
 	struct tmp102 *tmp102 = i2c_get_clientdata(client);
 
-	thermal_zone_of_sensor_unregister(&client->dev, tmp102->tz);
+	thermal_zone_of_sensor_unregister(tmp102->hwmon_dev, tmp102->tz);
 	hwmon_device_unregister(tmp102->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
 
 	/* Stop monitoring if device was stopped originally */
 	if (tmp102->config_orig & TMP102_CONF_SD) {

drivers/hwmon/tmp421.c

@@ -69,7 +69,7 @@ static const struct i2c_device_id tmp421_id[] = {
 MODULE_DEVICE_TABLE(i2c, tmp421_id);
 
 struct tmp421_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;
 	unsigned long last_updated;
@@ -99,8 +99,8 @@ static int temp_from_u16(u16 reg)
 
 static struct tmp421_data *tmp421_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp421_data *data = i2c_get_clientdata(client);
+	struct tmp421_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int i;
 
 	mutex_lock(&data->update_lock);
@@ -198,6 +198,11 @@ static const struct attribute_group tmp421_group = {
 	.is_visible = tmp421_is_visible,
 };
 
+static const struct attribute_group *tmp421_groups[] = {
+	&tmp421_group,
+	NULL
+};
+
 static int tmp421_init_client(struct i2c_client *client)
 {
 	int config, config_orig;
@@ -264,47 +269,26 @@ static int tmp421_detect(struct i2c_client *client,
 static int tmp421_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct tmp421_data *data;
 	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct tmp421_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct tmp421_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 	data->channels = id->driver_data;
+	data->client = client;
 
 	err = tmp421_init_client(client);
 	if (err)
 		return err;
 
-	err = sysfs_create_group(&client->dev.kobj, &tmp421_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);
-		data->hwmon_dev = NULL;
-		goto exit_remove;
-	}
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &tmp421_group);
-	return err;
-}
-
-static int tmp421_remove(struct i2c_client *client)
-{
-	struct tmp421_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &tmp421_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, tmp421_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static struct i2c_driver tmp421_driver = {
@@ -313,7 +297,6 @@ static struct i2c_driver tmp421_driver = {
 		.name	= "tmp421",
 	},
 	.probe = tmp421_probe,
-	.remove = tmp421_remove,
 	.id_table = tmp421_id,
 	.detect = tmp421_detect,
 	.address_list = normal_i2c,

drivers/hwmon/ultra45_env.c

@@ -252,7 +252,7 @@ static const struct attribute_group env_group = {
 
 static int env_probe(struct platform_device *op)
 {
-	struct env *p = kzalloc(sizeof(*p), GFP_KERNEL);
+	struct env *p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
 	int err = -ENOMEM;
 
 	if (!p)
@@ -262,7 +262,7 @@ static int env_probe(struct platform_device *op)
 
 	p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
 	if (!p->regs)
-		goto out_free;
+		goto out;
 
 	err = sysfs_create_group(&op->dev.kobj, &env_group);
 	if (err)
@@ -286,8 +286,6 @@ out_sysfs_remove_group:
 out_iounmap:
 	of_iounmap(&op->resource[0], p->regs, REG_SIZE);
 
-out_free:
-	kfree(p);
 	goto out;
 }
 
@@ -299,7 +297,6 @@ static int env_remove(struct platform_device *op)
 		sysfs_remove_group(&op->dev.kobj, &env_group);
 		hwmon_device_unregister(p->hwmon_dev);
 		of_iounmap(&op->resource[0], p->regs, REG_SIZE);
-		kfree(p);
 	}
 
 	return 0;

drivers/hwmon/vt1211.c

@@ -1152,10 +1152,8 @@ static int vt1211_probe(struct platform_device *pdev)
 	int i, err;
 
 	data = devm_kzalloc(dev, sizeof(struct vt1211_data), GFP_KERNEL);
-	if (!data) {
-		dev_err(dev, "Out of memory\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!devm_request_region(dev, res->start, resource_size(res),