Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

Pull thermal management update from Zhang Rui:
 "Summary:

   - of-thermal extension to allow drivers to register and use its
     functionality in a better way, without exploiting thermal core.
     From Lukasz Majewski.

   - Fix a bug in intel_soc_dts_thermal driver which calls a sleep
     function in interrupt handler.  From Maurice Petallo.

   - add a thermal UAPI header file for exporting the thermal generic
     netlink information to user-space.  From Florian Fainelli.

   - First round of refactoring in Exynos driver.  Bartlomiej and Lukasz
     are attempting to make it lean and easier to understand.

   - New thermal driver for Rockchip (rk3288), with support for DT
     thermal.  From Caesar Wang.

   - New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with
     support for DT thermal.  From Mikko Perttunen.

   - New cooling device, based on common clock framework.  From Eduardo
     Valentin.

   - a couple of small fixes in thermal core framework.  From Srinivas
     Pandruvada, Javi Merino, Luis Henriques.

   - Dropping Armada A375-Z1 SoC thermal support as the chip is not in
     the market, armada folks decided to drop its support.

   - a couple of small fixes and cleanups in int340x thermal driver"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits)
  thermal: provide an UAPI header file
  Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call
  thermal/powerclamp: add id for braswell cpu
  thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock
  Thermal: fix platform_no_drv_owner.cocci warnings
  Thermal/int340x: avoid unnecessary pointer casting
  thermal: int3403: Delete a check before thermal_zone_device_unregister()
  thermal/int3400: export uuids
  thermal: of: Extend current of-thermal.c code to allow setting emulated temp
  thermal: of: Extend of-thermal to export table of trip points
  thermal: of: Rename struct __thermal_trip to struct thermal_trip
  thermal: of: Extend of-thermal.c to provide check if trip point is valid
  thermal: of: Extend of-thermal.c to provide number of trip points
  thermal: Fix error path in thermal_init()
  thermal: lock the thermal zone when switching governors
  thermal: core: ignore invalid trip temperature
  thermal: armada: Remove support for A375-Z1 SoC
  thermal: rockchip: add driver for thermal
  dt-bindings: document Rockchip thermal
  thermal: exynos: remove exynos_tmu_data.h include
  ...

Documentation/devicetree/bindings/thermal/armada-thermal.txt

@@ -5,17 +5,9 @@ Required properties:
 - compatible:	Should be set to one of the following:
 		marvell,armada370-thermal
 		marvell,armada375-thermal
-		marvell,armada375-z1-thermal
 		marvell,armada380-thermal
 		marvell,armadaxp-thermal
 
-		Note: As the name suggests, "marvell,armada375-z1-thermal"
-		applies for the SoC Z1 stepping only. On such stepping
-		some quirks need to be done and the register offset differs
-		from the one in the A0 stepping.
-		The operating system may auto-detect the SoC stepping and
-		update the compatible and register offsets at runtime.
-
 - reg:		Device's register space.
 		Two entries are expected, see the examples below.
 		The first one is required for the sensor register;

Documentation/devicetree/bindings/thermal/rockchip-thermal.txt

@@ -0,0 +1,68 @@
+* Temperature Sensor ADC (TSADC) on rockchip SoCs
+
+Required properties:
+- compatible : "rockchip,rk3288-tsadc"
+- reg : physical base address of the controller and length of memory mapped
+	region.
+- interrupts : The interrupt number to the cpu. The interrupt specifier format
+	       depends on the interrupt controller.
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : Shall be "tsadc" for the converter-clock, and "apb_pclk" for
+		the peripheral clock.
+- resets : Must contain an entry for each entry in reset-names.
+	   See ../reset/reset.txt for details.
+- reset-names : Must include the name "tsadc-apb".
+- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description.
+- rockchip,hw-tshut-temp : The hardware-controlled shutdown temperature value.
+- rockchip,hw-tshut-mode : The hardware-controlled shutdown mode 0:CRU 1:GPIO.
+- rockchip,hw-tshut-polarity : The hardware-controlled active polarity 0:LOW
+			       1:HIGH.
+
+Exiample:
+tsadc: tsadc@ff280000 {
+	compatible = "rockchip,rk3288-tsadc";
+	reg = <0xff280000 0x100>;
+	interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
+	clock-names = "tsadc", "apb_pclk";
+	resets = <&cru SRST_TSADC>;
+	reset-names = "tsadc-apb";
+	pinctrl-names = "default";
+	pinctrl-0 = <&otp_out>;
+	#thermal-sensor-cells = <1>;
+	rockchip,hw-tshut-temp = <95000>;
+	rockchip,hw-tshut-mode = <0>;
+	rockchip,hw-tshut-polarity = <0>;
+};
+
+Example: referring to thermal sensors:
+thermal-zones {
+	cpu_thermal: cpu_thermal {
+		polling-delay-passive = <1000>; /* milliseconds */
+		polling-delay = <5000>; /* milliseconds */
+
+		/* sensor	ID */
+		thermal-sensors = <&tsadc	1>;
+
+		trips {
+			cpu_alert0: cpu_alert {
+				temperature = <70000>; /* millicelsius */
+				hysteresis = <2000>; /* millicelsius */
+				type = "passive";
+			};
+			cpu_crit: cpu_crit {
+				temperature = <90000>; /* millicelsius */
+				hysteresis = <2000>; /* millicelsius */
+				type = "critical";
+			};
+		};
+
+		cooling-maps {
+			map0 {
+				trip = <&cpu_alert0>;
+				cooling-device =
+				    <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+			};
+		};
+	};
+};

Documentation/devicetree/bindings/thermal/tegra-soctherm.txt

@@ -0,0 +1,53 @@
+Tegra124 SOCTHERM thermal management system
+
+The SOCTHERM IP block contains thermal sensors, support for polled
+or interrupt-based thermal monitoring, CPU and GPU throttling based
+on temperature trip points, and handling external overcurrent
+notifications. It is also used to manage emergency shutdown in an
+overheating situation.
+
+Required properties :
+- compatible : "nvidia,tegra124-soctherm".
+- reg : Should contain 1 entry:
+  - SOCTHERM register set
+- interrupts : Defines the interrupt used by SOCTHERM
+- clocks : Must contain an entry for each entry in clock-names.
+  See ../clocks/clock-bindings.txt for details.
+- clock-names : Must include the following entries:
+  - tsensor
+  - soctherm
+- resets : Must contain an entry for each entry in reset-names.
+  See ../reset/reset.txt for details.
+- reset-names : Must include the following entries:
+  - soctherm
+- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description
+    of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a
+    list of valid values when referring to thermal sensors.
+
+
+Example :
+
+	soctherm@0,700e2000 {
+		compatible = "nvidia,tegra124-soctherm";
+		reg = <0x0 0x700e2000 0x0 0x1000>;
+		interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
+			<&tegra_car TEGRA124_CLK_SOC_THERM>;
+		clock-names = "tsensor", "soctherm";
+		resets = <&tegra_car 78>;
+		reset-names = "soctherm";
+
+		#thermal-sensor-cells = <1>;
+	};
+
+Example: referring to thermal sensors :
+
+       thermal-zones {
+                cpu {
+                        polling-delay-passive = <1000>;
+                        polling-delay = <1000>;
+
+                        thermal-sensors =
+                                <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
+                };
+	};

MAINTAINERS

@@ -9516,6 +9516,7 @@ Q:	https://patchwork.kernel.org/project/linux-pm/list/
 S:	Supported
 F:	drivers/thermal/
 F:	include/linux/thermal.h
+F:	include/uapi/linux/thermal.h
 F:	include/linux/cpu_cooling.h
 F:	Documentation/devicetree/bindings/thermal/
 

arch/arm/boot/dts/tegra124-jetson-tk1.dts

@@ -1942,4 +1942,48 @@
 			 <&tegra_car TEGRA124_CLK_EXTERN1>;
 		clock-names = "pll_a", "pll_a_out0", "mclk";
 	};
+
+	thermal-zones {
+		cpu {
+			trips {
+				trip@0 {
+					temperature = <101000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				/* There are currently no cooling maps because there are no cooling devices */
+			};
+		};
+
+		mem {
+			trips {
+				trip@0 {
+					temperature = <101000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				/* There are currently no cooling maps because there are no cooling devices */
+			};
+		};
+
+		gpu {
+			trips {
+				trip@0 {
+					temperature = <101000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				/* There are currently no cooling maps because there are no cooling devices */
+			};
+		};
+	};
 };

arch/arm/boot/dts/tegra124.dtsi

@@ -4,6 +4,7 @@
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>
 #include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/thermal/tegra124-soctherm.h>
 
 #include "skeleton.dtsi"
 
@@ -657,6 +658,18 @@
 		status = "disabled";
 	};
 
+	soctherm: thermal-sensor@0,700e2000 {
+		compatible = "nvidia,tegra124-soctherm";
+		reg = <0x0 0x700e2000 0x0 0x1000>;
+		interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
+			<&tegra_car TEGRA124_CLK_SOC_THERM>;
+		clock-names = "tsensor", "soctherm";
+		resets = <&tegra_car 78>;
+		reset-names = "soctherm";
+		#thermal-sensor-cells = <1>;
+	};
+
 	ahub@0,70300000 {
 		compatible = "nvidia,tegra124-ahub";
 		reg = <0x0 0x70300000 0x0 0x200>,
@@ -898,6 +911,40 @@
 		};
 	};
 
+	thermal-zones {
+		cpu {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
+		};
+
+		mem {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>;
+		};
+
+		gpu {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>;
+		};
+
+		pllx {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>;
+		};
+	};
+
 	timer {
 		compatible = "arm,armv7-timer";
 		interrupts = <GIC_PPI 13

drivers/hwmon/lm75.c

@@ -177,6 +177,10 @@ static struct attribute *lm75_attrs[] = {
 };
 ATTRIBUTE_GROUPS(lm75);
 
+static const struct thermal_zone_of_device_ops lm75_of_thermal_ops = {
+	.get_temp = lm75_read_temp,
+};
+
 /*-----------------------------------------------------------------------*/
 
 /* device probe and removal */
@@ -296,10 +300,9 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (IS_ERR(data->hwmon_dev))
 		return PTR_ERR(data->hwmon_dev);
 
-	data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
-						   0,
+	data->tz = thermal_zone_of_sensor_register(data->hwmon_dev, 0,
 						   data->hwmon_dev,
-						   lm75_read_temp, NULL);
+						   &lm75_of_thermal_ops);
 	if (IS_ERR(data->tz))
 		data->tz = NULL;
 

drivers/hwmon/ntc_thermistor.c

@@ -486,6 +486,10 @@ static const struct attribute_group ntc_attr_group = {
 	.attrs = ntc_attributes,
 };
 
+static const struct thermal_zone_of_device_ops ntc_of_thermal_ops = {
+	.get_temp = ntc_read_temp,
+};
+
 static int ntc_thermistor_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *of_id =
@@ -579,7 +583,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
 								pdev_id->name);
 
 	data->tz = thermal_zone_of_sensor_register(data->dev, 0, data->dev,
-						ntc_read_temp, NULL);
+						   &ntc_of_thermal_ops);
 	if (IS_ERR(data->tz)) {
 		dev_dbg(&pdev->dev, "Failed to register to thermal fw.\n");
 		data->tz = NULL;

drivers/hwmon/tmp102.c

@@ -158,6 +158,10 @@ 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)
 
+static const struct thermal_zone_of_device_ops tmp102_of_thermal_ops = {
+	.get_temp = tmp102_read_temp,
+};
+
 static int tmp102_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
@@ -215,7 +219,7 @@ static int tmp102_probe(struct i2c_client *client,
 	}
 	tmp102->hwmon_dev = hwmon_dev;
 	tmp102->tz = thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
-						     tmp102_read_temp, NULL);
+						     &tmp102_of_thermal_ops);
 	if (IS_ERR(tmp102->tz))
 		tmp102->tz = NULL;
 

drivers/thermal/Kconfig

@@ -112,6 +112,18 @@ config CPU_THERMAL
 
 	  If you want this support, you should say Y here.
 
+config CLOCK_THERMAL
+	bool "Generic clock cooling support"
+	depends on COMMON_CLK
+	depends on PM_OPP
+	help
+	  This entry implements the generic clock cooling mechanism through
+	  frequency clipping. Typically used to cool off co-processors. The
+	  device that is configured to use this cooling mechanism will be
+	  controlled to reduce clock frequency whenever temperature is high.
+
+	  If you want this support, you should say Y here.
+
 config THERMAL_EMULATION
 	bool "Thermal emulation mode support"
 	help
@@ -143,6 +155,16 @@ config SPEAR_THERMAL
 	  Enable this to plug the SPEAr thermal sensor driver into the Linux
 	  thermal framework.
 
+config ROCKCHIP_THERMAL
+	tristate "Rockchip thermal driver"
+	depends on ARCH_ROCKCHIP
+	depends on RESET_CONTROLLER
+	help
+	  Rockchip thermal driver provides support for Temperature sensor
+	  ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
+	  trip point. Cpufreq is used as the cooling device and will throttle
+	  CPUs when the Temperature crosses the passive trip point.
+
 config RCAR_THERMAL
 	tristate "Renesas R-Car thermal driver"
 	depends on ARCH_SHMOBILE || COMPILE_TEST
@@ -185,6 +207,16 @@ config ARMADA_THERMAL
 	  Enable this option if you want to have support for thermal management
 	  controller present in Armada 370 and Armada XP SoC.
 
+config TEGRA_SOCTHERM
+	tristate "Tegra SOCTHERM thermal management"
+	depends on ARCH_TEGRA
+	help
+	  Enable this option for integrated thermal management support on NVIDIA
+	  Tegra124 systems-on-chip. The driver supports four thermal zones
+	  (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal
+	  zones to manage temperatures. This option is also required for the
+	  emergency thermal reset (thermtrip) feature to function.
+
 config DB8500_CPUFREQ_COOLING
 	tristate "DB8500 cpufreq cooling"
 	depends on ARCH_U8500

drivers/thermal/Makefile

@@ -18,8 +18,12 @@ thermal_sys-$(CONFIG_THERMAL_GOV_USER_SPACE)	+= user_space.o
 # cpufreq cooling
 thermal_sys-$(CONFIG_CPU_THERMAL)	+= cpu_cooling.o
 
+# clock cooling
+thermal_sys-$(CONFIG_CLOCK_THERMAL)	+= clock_cooling.o
+
 # platform thermal drivers
 obj-$(CONFIG_SPEAR_THERMAL)	+= spear_thermal.o
+obj-$(CONFIG_ROCKCHIP_THERMAL)	+= rockchip_thermal.o
 obj-$(CONFIG_RCAR_THERMAL)	+= rcar_thermal.o
 obj-$(CONFIG_KIRKWOOD_THERMAL)  += kirkwood_thermal.o
 obj-y				+= samsung/
@@ -34,3 +38,4 @@ obj-$(CONFIG_INTEL_SOC_DTS_THERMAL)	+= intel_soc_dts_thermal.o
 obj-$(CONFIG_TI_SOC_THERMAL)	+= ti-soc-thermal/
 obj-$(CONFIG_INT340X_THERMAL)  += int340x_thermal/
 obj-$(CONFIG_ST_THERMAL)	+= st/
+obj-$(CONFIG_TEGRA_SOCTHERM)	+= tegra_soctherm.o

drivers/thermal/armada_thermal.c

@@ -35,10 +35,6 @@
 #define PMU_TDC0_OTF_CAL_MASK		(0x1 << 30)
 #define PMU_TDC0_START_CAL_MASK		(0x1 << 25)
 
-#define A375_Z1_CAL_RESET_LSB		0x8011e214
-#define A375_Z1_CAL_RESET_MSB		0x30a88019
-#define A375_Z1_WORKAROUND_BIT		BIT(9)
-
 #define A375_UNIT_CONTROL_SHIFT		27
 #define A375_UNIT_CONTROL_MASK		0x7
 #define A375_READOUT_INVERT		BIT(15)
@@ -124,24 +120,12 @@ static void armada375_init_sensor(struct platform_device *pdev,
 				  struct armada_thermal_priv *priv)
 {
 	unsigned long reg;
-	bool quirk_needed =
-		!!of_device_is_compatible(pdev->dev.of_node,
-					  "marvell,armada375-z1-thermal");
-
-	if (quirk_needed) {
-		/* Ensure these registers have the default (reset) values */
-		writel(A375_Z1_CAL_RESET_LSB, priv->control);
-		writel(A375_Z1_CAL_RESET_MSB, priv->control + 0x4);
-	}
 
 	reg = readl(priv->control + 4);
 	reg &= ~(A375_UNIT_CONTROL_MASK << A375_UNIT_CONTROL_SHIFT);
 	reg &= ~A375_READOUT_INVERT;
 	reg &= ~A375_HW_RESETn;
 
-	if (quirk_needed)
-		reg |= A375_Z1_WORKAROUND_BIT;
-
 	writel(reg, priv->control + 4);
 	mdelay(20);
 
@@ -259,10 +243,6 @@ static const struct of_device_id armada_thermal_id_table[] = {
 		.compatible = "marvell,armada375-thermal",
 		.data       = &armada375_data,
 	},
-	{
-		.compatible = "marvell,armada375-z1-thermal",
-		.data       = &armada375_data,
-	},
 	{
 		.compatible = "marvell,armada380-thermal",
 		.data       = &armada380_data,

drivers/thermal/clock_cooling.c

@@ -0,0 +1,485 @@
+/*
+ *  drivers/thermal/clock_cooling.c
+ *
+ *  Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
+ *
+ *  Copyright (C) 2013	Texas Instruments Inc.
+ *  Contact:  Eduardo Valentin <eduardo.valentin@ti.com>
+ *
+ *  Highly based on cpu_cooling.c.
+ *  Copyright (C) 2012	Samsung Electronics Co., Ltd(http://www.samsung.com)
+ *  Copyright (C) 2012  Amit Daniel <amit.kachhap@linaro.org>
+ *
+ *  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; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ */
+#include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/idr.h>
+#include <linux/mutex.h>
+#include <linux/pm_opp.h>
+#include <linux/slab.h>
+#include <linux/thermal.h>
+#include <linux/clock_cooling.h>
+
+/**
+ * struct clock_cooling_device - data for cooling device with clock
+ * @id: unique integer value corresponding to each clock_cooling_device
+ *	registered.
+ * @dev: struct device pointer to the device being used to cool off using
+ *       clock frequencies.
+ * @cdev: thermal_cooling_device pointer to keep track of the
+ *	registered cooling device.
+ * @clk_rate_change_nb: reference to notifier block used to receive clock
+ *                      rate changes.
+ * @freq_table: frequency table used to keep track of available frequencies.
+ * @clock_state: integer value representing the current state of clock
+ *	cooling	devices.
+ * @clock_val: integer value representing the absolute value of the clipped
+ *	frequency.
+ * @clk: struct clk reference used to enforce clock limits.
+ * @lock: mutex lock to protect this struct.
+ *
+ * This structure is required for keeping information of each
+ * clock_cooling_device registered. In order to prevent corruption of this a
+ * mutex @lock is used.
+ */
+struct clock_cooling_device {
+	int id;
+	struct device *dev;
+	struct thermal_cooling_device *cdev;
+	struct notifier_block clk_rate_change_nb;
+	struct cpufreq_frequency_table *freq_table;
+	unsigned long clock_state;
+	unsigned long clock_val;
+	struct clk *clk;
+	struct mutex lock; /* lock to protect the content of this struct */
+};
+#define to_clock_cooling_device(x) \
+		container_of(x, struct clock_cooling_device, clk_rate_change_nb)
+static DEFINE_IDR(clock_idr);
+static DEFINE_MUTEX(cooling_clock_lock);
+
+/**
+ * clock_cooling_get_idr - function to get an unique id.
+ * @id: int * value generated by this function.
+ *
+ * This function will populate @id with an unique
+ * id, using the idr API.
+ *
+ * Return: 0 on success, an error code on failure.
+ */
+static int clock_cooling_get_idr(int *id)
+{
+	int ret;
+
+	mutex_lock(&cooling_clock_lock);
+	ret = idr_alloc(&clock_idr, NULL, 0, 0, GFP_KERNEL);
+	mutex_unlock(&cooling_clock_lock);
+	if (unlikely(ret < 0))
+		return ret;
+	*id = ret;
+
+	return 0;
+}
+
+/**
+ * release_idr - function to free the unique id.
+ * @id: int value representing the unique id.
+ */
+static void release_idr(int id)
+{
+	mutex_lock(&cooling_clock_lock);
+	idr_remove(&clock_idr, id);
+	mutex_unlock(&cooling_clock_lock);
+}
+
+/* Below code defines functions to be used for clock as cooling device */
+
+enum clock_cooling_property {
+	GET_LEVEL,
+	GET_FREQ,
+	GET_MAXL,
+};
+
+/**
+ * clock_cooling_get_property - fetch a property of interest for a give cpu.
+ * @ccdev: clock cooling device reference
+ * @input: query parameter
+ * @output: query return
+ * @property: type of query (frequency, level, max level)
+ *
+ * This is the common function to
+ * 1. get maximum clock cooling states
+ * 2. translate frequency to cooling state
+ * 3. translate cooling state to frequency
+ * Note that the code may be not in good shape
+ * but it is written in this way in order to:
+ * a) reduce duplicate code as most of the code can be shared.
+ * b) make sure the logic is consistent when translating between
+ *    cooling states and frequencies.
+ *
+ * Return: 0 on success, -EINVAL when invalid parameters are passed.
+ */
+static int clock_cooling_get_property(struct clock_cooling_device *ccdev,
+				      unsigned long input,
+				      unsigned long *output,
+				      enum clock_cooling_property property)
+{
+	int i;
+	unsigned long max_level = 0, level = 0;
+	unsigned int freq = CPUFREQ_ENTRY_INVALID;
+	int descend = -1;
+	struct cpufreq_frequency_table *pos, *table = ccdev->freq_table;
+
+	if (!output)
+		return -EINVAL;
+
+	if (!table)
+		return -EINVAL;
+
+	cpufreq_for_each_valid_entry(pos, table) {
+		/* ignore duplicate entry */
+		if (freq == pos->frequency)
+			continue;
+
+		/* get the frequency order */
+		if (freq != CPUFREQ_ENTRY_INVALID && descend == -1)
+			descend = freq > pos->frequency;
+
+		freq = pos->frequency;
+		max_level++;
+	}
+
+	/* No valid cpu frequency entry */
+	if (max_level == 0)
+		return -EINVAL;
+
+	/* max_level is an index, not a counter */
+	max_level--;
+
+	/* get max level */
+	if (property == GET_MAXL) {
+		*output = max_level;
+		return 0;
+	}
+
+	if (property == GET_FREQ)
+		level = descend ? input : (max_level - input);
+
+	i = 0;
+	cpufreq_for_each_valid_entry(pos, table) {
+		/* ignore duplicate entry */
+		if (freq == pos->frequency)
+			continue;
+
+		/* now we have a valid frequency entry */
+		freq = pos->frequency;
+
+		if (property == GET_LEVEL && (unsigned int)input == freq) {
+			/* get level by frequency */
+			*output = descend ? i : (max_level - i);
+			return 0;
+		}
+		if (property == GET_FREQ && level == i) {
+			/* get frequency by level */
+			*output = freq;
+			return 0;
+		}
+		i++;
+	}
+
+	return -EINVAL;
+}
+
+/**
+ * clock_cooling_get_level - return the cooling level of given clock cooling.
+ * @cdev: reference of a thermal cooling device of used as clock cooling device
+ * @freq: the frequency of interest
+ *
+ * This function will match the cooling level corresponding to the
+ * requested @freq and return it.
+ *
+ * Return: The matched cooling level on success or THERMAL_CSTATE_INVALID
+ * otherwise.
+ */
+unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
+				      unsigned long freq)
+{
+	struct clock_cooling_device *ccdev = cdev->devdata;
+	unsigned long val;
+
+	if (clock_cooling_get_property(ccdev, (unsigned long)freq, &val,
+				       GET_LEVEL))
+		return THERMAL_CSTATE_INVALID;
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(clock_cooling_get_level);
+
+/**
+ * clock_cooling_get_frequency - get the absolute value of frequency from level.
+ * @ccdev: clock cooling device reference
+ * @level: cooling level
+ *
+ * This function matches cooling level with frequency. Based on a cooling level
+ * of frequency, equals cooling state of cpu cooling device, it will return
+ * the corresponding frequency.
+ *	e.g level=0 --> 1st MAX FREQ, level=1 ---> 2nd MAX FREQ, .... etc
+ *
+ * Return: 0 on error, the corresponding frequency otherwise.
+ */
+static unsigned long
+clock_cooling_get_frequency(struct clock_cooling_device *ccdev,
+			    unsigned long level)
+{
+	int ret = 0;
+	unsigned long freq;
+
+	ret = clock_cooling_get_property(ccdev, level, &freq, GET_FREQ);
+	if (ret)
+		return 0;
+
+	return freq;
+}
+
+/**
+ * clock_cooling_apply - function to apply frequency clipping.
+ * @ccdev: clock_cooling_device pointer containing frequency clipping data.
+ * @cooling_state: value of the cooling state.
+ *
+ * Function used to make sure the clock layer is aware of current thermal
+ * limits. The limits are applied by updating the clock rate in case it is
+ * higher than the corresponding frequency based on the requested cooling_state.
+ *
+ * Return: 0 on success, an error code otherwise (-EINVAL in case wrong
+ * cooling state).
+ */
+static int clock_cooling_apply(struct clock_cooling_device *ccdev,
+			       unsigned long cooling_state)
+{
+	unsigned long clip_freq, cur_freq;
+	int ret = 0;
+
+	/* Here we write the clipping */
+	/* Check if the old cooling action is same as new cooling action */
+	if (ccdev->clock_state == cooling_state)
+		return 0;
+
+	clip_freq = clock_cooling_get_frequency(ccdev, cooling_state);
+	if (!clip_freq)
+		return -EINVAL;
+
+	cur_freq = clk_get_rate(ccdev->clk);
+
+	mutex_lock(&ccdev->lock);
+	ccdev->clock_state = cooling_state;
+	ccdev->clock_val = clip_freq;
+	/* enforce clock level */
+	if (cur_freq > clip_freq)
+		ret = clk_set_rate(ccdev->clk, clip_freq);
+	mutex_unlock(&ccdev->lock);
+
+	return ret;
+}
+
+/**
+ * clock_cooling_clock_notifier - notifier callback on clock rate changes.
+ * @nb:	struct notifier_block * with callback info.
+ * @event: value showing clock event for which this function invoked.
+ * @data: callback-specific data
+ *
+ * Callback to hijack the notification on clock transition.
+ * Every time there is a clock change, we intercept all pre change events
+ * and block the transition in case the new rate infringes thermal limits.
+ *
+ * Return: NOTIFY_DONE (success) or NOTIFY_BAD (new_rate > thermal limit).
+ */
+static int clock_cooling_clock_notifier(struct notifier_block *nb,
+					unsigned long event, void *data)
+{
+	struct clk_notifier_data *ndata = data;
+	struct clock_cooling_device *ccdev = to_clock_cooling_device(nb);
+
+	switch (event) {
+	case PRE_RATE_CHANGE:
+		/*
+		 * checks on current state
+		 * TODO: current method is not best we can find as it
+		 * allows possibly voltage transitions, in case DVFS
+		 * layer is also hijacking clock pre notifications.
+		 */
+		if (ndata->new_rate > ccdev->clock_val)
+			return NOTIFY_BAD;
+		/* fall through */
+	case POST_RATE_CHANGE:
+	case ABORT_RATE_CHANGE:
+	default:
+		return NOTIFY_DONE;
+	}
+}
+
+/* clock cooling device thermal callback functions are defined below */
+
+/**
+ * clock_cooling_get_max_state - callback function to get the max cooling state.
+ * @cdev: thermal cooling device pointer.
+ * @state: fill this variable with the max cooling state.
+ *
+ * Callback for the thermal cooling device to return the clock
+ * max cooling state.
+ *
+ * Return: 0 on success, an error code otherwise.
+ */
+static int clock_cooling_get_max_state(struct thermal_cooling_device *cdev,
+				       unsigned long *state)
+{
+	struct clock_cooling_device *ccdev = cdev->devdata;
+	unsigned long count = 0;
+	int ret;
+
+	ret = clock_cooling_get_property(ccdev, 0, &count, GET_MAXL);
+	if (!ret)
+		*state = count;
+
+	return ret;
+}
+
+/**
+ * clock_cooling_get_cur_state - function to get the current cooling state.
+ * @cdev: thermal cooling device pointer.
+ * @state: fill this variable with the current cooling state.
+ *
+ * Callback for the thermal cooling device to return the clock
+ * current cooling state.
+ *
+ * Return: 0 (success)
+ */
+static int clock_cooling_get_cur_state(struct thermal_cooling_device *cdev,
+				       unsigned long *state)
+{
+	struct clock_cooling_device *ccdev = cdev->devdata;
+
+	*state = ccdev->clock_state;
+
+	return 0;
+}
+
+/**
+ * clock_cooling_set_cur_state - function to set the current cooling state.
+ * @cdev: thermal cooling device pointer.
+ * @state: set this variable to the current cooling state.
+ *
+ * Callback for the thermal cooling device to change the clock cooling
+ * current cooling state.
+ *
+ * Return: 0 on success, an error code otherwise.
+ */
+static int clock_cooling_set_cur_state(struct thermal_cooling_device *cdev,
+				       unsigned long state)
+{
+	struct clock_cooling_device *clock_device = cdev->devdata;
+
+	return clock_cooling_apply(clock_device, state);
+}
+
+/* Bind clock callbacks to thermal cooling device ops */
+static struct thermal_cooling_device_ops const clock_cooling_ops = {
+	.get_max_state = clock_cooling_get_max_state,
+	.get_cur_state = clock_cooling_get_cur_state,
+	.set_cur_state = clock_cooling_set_cur_state,
+};
+
+/**
+ * clock_cooling_register - function to create clock cooling device.
+ * @dev: struct device pointer to the device used as clock cooling device.
+ * @clock_name: string containing the clock used as cooling mechanism.
+ *
+ * This interface function registers the clock cooling device with the name
+ * "thermal-clock-%x". The cooling device is based on clock frequencies.
+ * The struct device is assumed to be capable of DVFS transitions.
+ * The OPP layer is used to fetch and fill the available frequencies for
+ * the referred device. The ordered frequency table is used to control
+ * the clock cooling device cooling states and to limit clock transitions
+ * based on the cooling state requested by the thermal framework.
+ *
+ * Return: a valid struct thermal_cooling_device pointer on success,
+ * on failure, it returns a corresponding ERR_PTR().
+ */
+struct thermal_cooling_device *
+clock_cooling_register(struct device *dev, const char *clock_name)
+{
+	struct thermal_cooling_device *cdev;
+	struct clock_cooling_device *ccdev = NULL;
+	char dev_name[THERMAL_NAME_LENGTH];
+	int ret = 0;
+
+	ccdev = devm_kzalloc(dev, sizeof(*ccdev), GFP_KERNEL);
+	if (!ccdev)
+		return ERR_PTR(-ENOMEM);
+
+	ccdev->dev = dev;
+	ccdev->clk = devm_clk_get(dev, clock_name);
+	if (IS_ERR(ccdev->clk))
+		return ERR_CAST(ccdev->clk);
+
+	ret = clock_cooling_get_idr(&ccdev->id);
+	if (ret)
+		return ERR_PTR(-EINVAL);
+
+	snprintf(dev_name, sizeof(dev_name), "thermal-clock-%d", ccdev->id);
+
+	cdev = thermal_cooling_device_register(dev_name, ccdev,
+					       &clock_cooling_ops);
+	if (IS_ERR(cdev)) {
+		release_idr(ccdev->id);
+		return ERR_PTR(-EINVAL);
+	}
+	ccdev->cdev = cdev;
+	ccdev->clk_rate_change_nb.notifier_call = clock_cooling_clock_notifier;
+
+	/* Assuming someone has already filled the opp table for this device */
+	ret = dev_pm_opp_init_cpufreq_table(dev, &ccdev->freq_table);
+	if (ret) {
+		release_idr(ccdev->id);
+		return ERR_PTR(ret);
+	}
+	ccdev->clock_state = 0;
+	ccdev->clock_val = clock_cooling_get_frequency(ccdev, 0);
+
+	clk_notifier_register(ccdev->clk, &ccdev->clk_rate_change_nb);
+
+	return cdev;
+}
+EXPORT_SYMBOL_GPL(clock_cooling_register);
+
+/**
+ * clock_cooling_unregister - function to remove clock cooling device.
+ * @cdev: thermal cooling device pointer.
+ *
+ * This interface function unregisters the "thermal-clock-%x" cooling device.
+ */
+void clock_cooling_unregister(struct thermal_cooling_device *cdev)
+{
+	struct clock_cooling_device *ccdev;
+
+	if (!cdev)
+		return;
+
+	ccdev = cdev->devdata;
+
+	clk_notifier_unregister(ccdev->clk, &ccdev->clk_rate_change_nb);
+	dev_pm_opp_free_cpufreq_table(ccdev->dev, &ccdev->freq_table);
+
+	thermal_cooling_device_unregister(ccdev->cdev);
+	release_idr(ccdev->id);
+}
+EXPORT_SYMBOL_GPL(clock_cooling_unregister);

drivers/thermal/int340x_thermal/acpi_thermal_rel.c

@@ -131,6 +131,8 @@ int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trtp,
 			pr_warn("Failed to get target ACPI device\n");
 	}
 
+	result = 0;
+
 	*trtp = trts;
 	/* don't count bad entries */
 	*trt_count -= nr_bad_entries;
@@ -317,21 +319,21 @@ static long acpi_thermal_rel_ioctl(struct file *f, unsigned int cmd,
 {
 	int ret = 0;
 	unsigned long length = 0;
-	unsigned long count = 0;
+	int count = 0;
 	char __user *arg = (void __user *)__arg;
 	struct trt *trts;
 	struct art *arts;
 
 	switch (cmd) {
 	case ACPI_THERMAL_GET_TRT_COUNT:
-		ret = acpi_parse_trt(acpi_thermal_rel_handle, (int *)&count,
+		ret = acpi_parse_trt(acpi_thermal_rel_handle, &count,
 				&trts, false);
 		kfree(trts);
 		if (!ret)
 			return put_user(count, (unsigned long __user *)__arg);
 		return ret;
 	case ACPI_THERMAL_GET_TRT_LEN:
-		ret = acpi_parse_trt(acpi_thermal_rel_handle, (int *)&count,
+		ret = acpi_parse_trt(acpi_thermal_rel_handle, &count,
 				&trts, false);
 		kfree(trts);
 		length = count * sizeof(union trt_object);
@@ -341,14 +343,14 @@ static long acpi_thermal_rel_ioctl(struct file *f, unsigned int cmd,
 	case ACPI_THERMAL_GET_TRT:
 		return fill_trt(arg);
 	case ACPI_THERMAL_GET_ART_COUNT:
-		ret = acpi_parse_art(acpi_thermal_rel_handle, (int *)&count,
+		ret = acpi_parse_art(acpi_thermal_rel_handle, &count,
 				&arts, false);
 		kfree(arts);
 		if (!ret)
 			return put_user(count, (unsigned long __user *)__arg);
 		return ret;
 	case ACPI_THERMAL_GET_ART_LEN:
-		ret = acpi_parse_art(acpi_thermal_rel_handle, (int *)&count,
+		ret = acpi_parse_art(acpi_thermal_rel_handle, &count,
 				&arts, false);
 		kfree(arts);
 		length = count * sizeof(union art_object);

drivers/thermal/int340x_thermal/int3400_thermal.c

@@ -43,6 +43,74 @@ struct int3400_thermal_priv {
 	struct trt *trts;
 	u8 uuid_bitmap;
 	int rel_misc_dev_res;
+	int current_uuid_index;
+};
+
+static ssize_t available_uuids_show(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
+	int i;
+	int length = 0;
+
+	for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
+		if (priv->uuid_bitmap & (1 << i))
+			if (PAGE_SIZE - length > 0)
+				length += snprintf(&buf[length],
+						   PAGE_SIZE - length,
+						   "%s\n",
+						   int3400_thermal_uuids[i]);
+	}
+
+	return length;
+}
+
+static ssize_t current_uuid_show(struct device *dev,
+				 struct device_attribute *devattr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
+
+	if (priv->uuid_bitmap & (1 << priv->current_uuid_index))
+		return sprintf(buf, "%s\n",
+			       int3400_thermal_uuids[priv->current_uuid_index]);
+	else
+		return sprintf(buf, "INVALID\n");
+}
+
+static ssize_t current_uuid_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) {
+		if ((priv->uuid_bitmap & (1 << i)) &&
+		    !(strncmp(buf, int3400_thermal_uuids[i],
+			      sizeof(int3400_thermal_uuids[i]) - 1))) {
+			priv->current_uuid_index = i;
+			return count;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static DEVICE_ATTR(current_uuid, 0644, current_uuid_show, current_uuid_store);
+static DEVICE_ATTR_RO(available_uuids);
+static struct attribute *uuid_attrs[] = {
+	&dev_attr_available_uuids.attr,
+	&dev_attr_current_uuid.attr,
+	NULL
+};
+
+static struct attribute_group uuid_attribute_group = {
+	.attrs = uuid_attrs,
+	.name = "uuids"
 };
 
 static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv)
@@ -160,9 +228,9 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
 
 	if (enable != priv->mode) {
 		priv->mode = enable;
-		/* currently, only PASSIVE COOLING is supported */
 		result = int3400_thermal_run_osc(priv->adev->handle,
-					INT3400_THERMAL_PASSIVE_1, enable);
+						 priv->current_uuid_index,
+						 enable);
 	}
 	return result;
 }
@@ -223,7 +291,14 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 	priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
 							priv->adev->handle);
 
+	result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group);
+	if (result)
+		goto free_zone;
+
 	return 0;
+
+free_zone:
+	thermal_zone_device_unregister(priv->thermal);
 free_trt:
 	kfree(priv->trts);
 free_art:
@@ -240,6 +315,7 @@ static int int3400_thermal_remove(struct platform_device *pdev)
 	if (!priv->rel_misc_dev_res)
 		acpi_thermal_rel_misc_device_remove(priv->adev->handle);
 
+	sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
 	thermal_zone_device_unregister(priv->thermal);
 	kfree(priv->trts);
 	kfree(priv->arts);

drivers/thermal/int340x_thermal/int3403_thermal.c

@@ -293,8 +293,7 @@ static int int3403_sensor_add(struct int3403_priv *priv)
 	return 0;
 
  err_free_obj:
-	if (obj->tzone)
-		thermal_zone_device_unregister(obj->tzone);
+	thermal_zone_device_unregister(obj->tzone);
 	return result;
 }
 
@@ -471,7 +470,6 @@ static struct platform_driver int3403_driver = {
 	.remove = int3403_remove,
 	.driver = {
 		.name = "int3403 thermal",
-		.owner  = THIS_MODULE,
 		.acpi_match_table = int3403_device_ids,
 	},
 };

drivers/thermal/intel_powerclamp.c

@@ -689,6 +689,7 @@ static const struct x86_cpu_id intel_powerclamp_ids[] = {
 	{ X86_VENDOR_INTEL, 6, 0x3f},
 	{ X86_VENDOR_INTEL, 6, 0x45},
 	{ X86_VENDOR_INTEL, 6, 0x46},
+	{ X86_VENDOR_INTEL, 6, 0x4c},
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);

drivers/thermal/intel_soc_dts_thermal.c

@@ -360,6 +360,9 @@ static void proc_thermal_interrupt(void)
 	u32 sticky_out;
 	int status;
 	u32 ptmc_out;
+	unsigned long flags;
+
+	spin_lock_irqsave(&intr_notify_lock, flags);
 
 	/* Clear APIC interrupt */
 	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
@@ -378,21 +381,20 @@ static void proc_thermal_interrupt(void)
 		/* reset sticky bit */
 		status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
 					SOC_DTS_OFFSET_PTTSS, sticky_out);
+		spin_unlock_irqrestore(&intr_notify_lock, flags);
+
 		for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
 			pr_debug("TZD update for zone %d\n", i);
 			thermal_zone_device_update(soc_dts[i]->tzone);
 		}
-	}
+	} else
+		spin_unlock_irqrestore(&intr_notify_lock, flags);
 
 }
 
 static irqreturn_t soc_irq_thread_fn(int irq, void *dev_data)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&intr_notify_lock, flags);
 	proc_thermal_interrupt();
-	spin_unlock_irqrestore(&intr_notify_lock, flags);
 	pr_debug("proc_thermal_interrupt\n");
 
 	return IRQ_HANDLED;

drivers/thermal/of-thermal.c

@@ -30,26 +30,12 @@
 #include <linux/err.h>
 #include <linux/export.h>
 #include <linux/string.h>
+#include <linux/thermal.h>
 
 #include "thermal_core.h"
 
 /***   Private data structures to represent thermal device tree data ***/
 
-/**
- * struct __thermal_trip - representation of a point in temperature domain
- * @np: pointer to struct device_node that this trip point was created from
- * @temperature: temperature value in miliCelsius
- * @hysteresis: relative hysteresis in miliCelsius
- * @type: trip point type
- */
-
-struct __thermal_trip {
-	struct device_node *np;
-	unsigned long int temperature;
-	unsigned long int hysteresis;
-	enum thermal_trip_type type;
-};
-
 /**
  * struct __thermal_bind_param - a match between trip and cooling device
  * @cooling_device: a pointer to identify the referred cooling device
@@ -77,8 +63,7 @@ struct __thermal_bind_params {
  * @num_tbps: number of thermal bind params
  * @tbps: an array of thermal bind params (0..num_tbps - 1)
  * @sensor_data: sensor private data used while reading temperature and trend
- * @get_temp: sensor callback to read temperature
- * @get_trend: sensor callback to read temperature trend
+ * @ops: set of callbacks to handle the thermal zone based on DT
  */
 
 struct __thermal_zone {
@@ -88,7 +73,7 @@ struct __thermal_zone {
 
 	/* trip data */
 	int ntrips;
-	struct __thermal_trip *trips;
+	struct thermal_trip *trips;
 
 	/* cooling binding data */
 	int num_tbps;
@@ -96,8 +81,7 @@ struct __thermal_zone {
 
 	/* sensor interface */
 	void *sensor_data;
-	int (*get_temp)(void *, long *);
-	int (*get_trend)(void *, long *);
+	const struct thermal_zone_of_device_ops *ops;
 };
 
 /***   DT thermal zone device callbacks   ***/
@@ -107,10 +91,96 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->get_temp)
+	if (!data->ops->get_temp)
 		return -EINVAL;
 
-	return data->get_temp(data->sensor_data, temp);
+	return data->ops->get_temp(data->sensor_data, temp);
+}
+
+/**
+ * of_thermal_get_ntrips - function to export number of available trip
+ *			   points.
+ * @tz: pointer to a thermal zone
+ *
+ * This function is a globally visible wrapper to get number of trip points
+ * stored in the local struct __thermal_zone
+ *
+ * Return: number of available trip points, -ENODEV when data not available
+ */
+int of_thermal_get_ntrips(struct thermal_zone_device *tz)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (!data || IS_ERR(data))
+		return -ENODEV;
+
+	return data->ntrips;
+}
+EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
+
+/**
+ * of_thermal_is_trip_valid - function to check if trip point is valid
+ *
+ * @tz:	pointer to a thermal zone
+ * @trip:	trip point to evaluate
+ *
+ * This function is responsible for checking if passed trip point is valid
+ *
+ * Return: true if trip point is valid, false otherwise
+ */
+bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (!data || trip >= data->ntrips || trip < 0)
+		return false;
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
+
+/**
+ * of_thermal_get_trip_points - function to get access to a globally exported
+ *				trip points
+ *
+ * @tz:	pointer to a thermal zone
+ *
+ * This function provides a pointer to trip points table
+ *
+ * Return: pointer to trip points table, NULL otherwise
+ */
+const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *tz)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (!data)
+		return NULL;
+
+	return data->trips;
+}
+EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
+
+/**
+ * of_thermal_set_emul_temp - function to set emulated temperature
+ *
+ * @tz:	pointer to a thermal zone
+ * @temp:	temperature to set
+ *
+ * This function gives the ability to set emulated value of temperature,
+ * which is handy for debugging
+ *
+ * Return: zero on success, error code otherwise
+ */
+static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
+				    unsigned long temp)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (!data->ops || !data->ops->set_emul_temp)
+		return -EINVAL;
+
+	return data->ops->set_emul_temp(data->sensor_data, temp);
 }
 
 static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
@@ -120,10 +190,10 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
 	long dev_trend;
 	int r;
 
-	if (!data->get_trend)
+	if (!data->ops->get_trend)
 		return -EINVAL;
 
-	r = data->get_trend(data->sensor_data, &dev_trend);
+	r = data->ops->get_trend(data->sensor_data, &dev_trend);
 	if (r)
 		return r;
 
@@ -324,8 +394,7 @@ static struct thermal_zone_device_ops of_thermal_ops = {
 static struct thermal_zone_device *
 thermal_zone_of_add_sensor(struct device_node *zone,
 			   struct device_node *sensor, void *data,
-			   int (*get_temp)(void *, long *),
-			   int (*get_trend)(void *, long *))
+			   const struct thermal_zone_of_device_ops *ops)
 {
 	struct thermal_zone_device *tzd;
 	struct __thermal_zone *tz;
@@ -336,13 +405,16 @@ thermal_zone_of_add_sensor(struct device_node *zone,
 
 	tz = tzd->devdata;
 
+	if (!ops)
+		return ERR_PTR(-EINVAL);
+
 	mutex_lock(&tzd->lock);
-	tz->get_temp = get_temp;
-	tz->get_trend = get_trend;
+	tz->ops = ops;
 	tz->sensor_data = data;
 
 	tzd->ops->get_temp = of_thermal_get_temp;
 	tzd->ops->get_trend = of_thermal_get_trend;
+	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
 	mutex_unlock(&tzd->lock);
 
 	return tzd;
@@ -356,8 +428,7 @@ thermal_zone_of_add_sensor(struct device_node *zone,
  *             than one sensors
  * @data: a private pointer (owned by the caller) that will be passed
  *        back, when a temperature reading is needed.
- * @get_temp: a pointer to a function that reads the sensor temperature.
- * @get_trend: a pointer to a function that reads the sensor temperature trend.
+ * @ops: struct thermal_zone_of_device_ops *. Must contain at least .get_temp.
  *
  * This function will search the list of thermal zones described in device
  * tree and look for the zone that refer to the sensor device pointed by
@@ -382,9 +453,8 @@ thermal_zone_of_add_sensor(struct device_node *zone,
  * check the return value with help of IS_ERR() helper.
  */
 struct thermal_zone_device *
-thermal_zone_of_sensor_register(struct device *dev, int sensor_id,
-				void *data, int (*get_temp)(void *, long *),
-				int (*get_trend)(void *, long *))
+thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
+				const struct thermal_zone_of_device_ops *ops)
 {
 	struct device_node *np, *child, *sensor_np;
 	struct thermal_zone_device *tzd = ERR_PTR(-ENODEV);
@@ -426,9 +496,7 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id,
 
 		if (sensor_specs.np == sensor_np && id == sensor_id) {
 			tzd = thermal_zone_of_add_sensor(child, sensor_np,
-							 data,
-							 get_temp,
-							 get_trend);
+							 data, ops);
 			of_node_put(sensor_specs.np);
 			of_node_put(child);
 			goto exit;
@@ -475,9 +543,9 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
 	mutex_lock(&tzd->lock);
 	tzd->ops->get_temp = NULL;
 	tzd->ops->get_trend = NULL;
+	tzd->ops->set_emul_temp = NULL;
 
-	tz->get_temp = NULL;
-	tz->get_trend = NULL;
+	tz->ops = NULL;
 	tz->sensor_data = NULL;
 	mutex_unlock(&tzd->lock);
 }
@@ -501,7 +569,7 @@ EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_unregister);
  */
 static int thermal_of_populate_bind_params(struct device_node *np,
 					   struct __thermal_bind_params *__tbp,
-					   struct __thermal_trip *trips,
+					   struct thermal_trip *trips,
 					   int ntrips)
 {
 	struct of_phandle_args cooling_spec;
@@ -604,7 +672,7 @@ static int thermal_of_get_trip_type(struct device_node *np,
  * Return: 0 on success, proper error code otherwise
  */
 static int thermal_of_populate_trip(struct device_node *np,
-				    struct __thermal_trip *trip)
+				    struct thermal_trip *trip)
 {
 	int prop;
 	int ret;

drivers/thermal/rockchip_thermal.c

@@ -0,0 +1,693 @@
+/*
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/thermal.h>
+
+/**
+ * If the temperature over a period of time High,
+ * the resulting TSHUT gave CRU module,let it reset the entire chip,
+ * or via GPIO give PMIC.
+ */
+enum tshut_mode {
+	TSHUT_MODE_CRU = 0,
+	TSHUT_MODE_GPIO,
+};
+
+/**
+ * the system Temperature Sensors tshut(tshut) polarity
+ * the bit 8 is tshut polarity.
+ * 0: low active, 1: high active
+ */
+enum tshut_polarity {
+	TSHUT_LOW_ACTIVE = 0,
+	TSHUT_HIGH_ACTIVE,
+};
+
+/**
+ * The system has three Temperature Sensors.  channel 0 is reserved,
+ * channel 1 is for CPU, and channel 2 is for GPU.
+ */
+enum sensor_id {
+	SENSOR_CPU = 1,
+	SENSOR_GPU,
+};
+
+struct rockchip_tsadc_chip {
+	/* The hardware-controlled tshut property */
+	long tshut_temp;
+	enum tshut_mode tshut_mode;
+	enum tshut_polarity tshut_polarity;
+
+	/* Chip-wide methods */
+	void (*initialize)(void __iomem *reg, enum tshut_polarity p);
+	void (*irq_ack)(void __iomem *reg);
+	void (*control)(void __iomem *reg, bool on);
+
+	/* Per-sensor methods */
+	int (*get_temp)(int chn, void __iomem *reg, long *temp);
+	void (*set_tshut_temp)(int chn, void __iomem *reg, long temp);
+	void (*set_tshut_mode)(int chn, void __iomem *reg, enum tshut_mode m);
+};
+
+struct rockchip_thermal_sensor {
+	struct rockchip_thermal_data *thermal;
+	struct thermal_zone_device *tzd;
+	enum sensor_id id;
+};
+
+#define NUM_SENSORS	2 /* Ignore unused sensor 0 */
+
+struct rockchip_thermal_data {
+	const struct rockchip_tsadc_chip *chip;
+	struct platform_device *pdev;
+	struct reset_control *reset;
+
+	struct rockchip_thermal_sensor sensors[NUM_SENSORS];
+
+	struct clk *clk;
+	struct clk *pclk;
+
+	void __iomem *regs;
+
+	long tshut_temp;
+	enum tshut_mode tshut_mode;
+	enum tshut_polarity tshut_polarity;
+};
+
+/* TSADC V2 Sensor info define: */
+#define TSADCV2_AUTO_CON			0x04
+#define TSADCV2_INT_EN				0x08
+#define TSADCV2_INT_PD				0x0c
+#define TSADCV2_DATA(chn)			(0x20 + (chn) * 0x04)
+#define TSADCV2_COMP_SHUT(chn)		        (0x40 + (chn) * 0x04)
+#define TSADCV2_HIGHT_INT_DEBOUNCE		0x60
+#define TSADCV2_HIGHT_TSHUT_DEBOUNCE		0x64
+#define TSADCV2_AUTO_PERIOD			0x68
+#define TSADCV2_AUTO_PERIOD_HT			0x6c
+
+#define TSADCV2_AUTO_EN				BIT(0)
+#define TSADCV2_AUTO_DISABLE			~BIT(0)
+#define TSADCV2_AUTO_SRC_EN(chn)		BIT(4 + (chn))
+#define TSADCV2_AUTO_TSHUT_POLARITY_HIGH	BIT(8)
+#define TSADCV2_AUTO_TSHUT_POLARITY_LOW		~BIT(8)
+
+#define TSADCV2_INT_SRC_EN(chn)			BIT(chn)
+#define TSADCV2_SHUT_2GPIO_SRC_EN(chn)		BIT(4 + (chn))
+#define TSADCV2_SHUT_2CRU_SRC_EN(chn)		BIT(8 + (chn))
+
+#define TSADCV2_INT_PD_CLEAR			~BIT(8)
+
+#define TSADCV2_DATA_MASK			0xfff
+#define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT	4
+#define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT	4
+#define TSADCV2_AUTO_PERIOD_TIME		250 /* msec */
+#define TSADCV2_AUTO_PERIOD_HT_TIME		50  /* msec */
+
+struct tsadc_table {
+	unsigned long code;
+	long temp;
+};
+
+static const struct tsadc_table v2_code_table[] = {
+	{TSADCV2_DATA_MASK, -40000},
+	{3800, -40000},
+	{3792, -35000},
+	{3783, -30000},
+	{3774, -25000},
+	{3765, -20000},
+	{3756, -15000},
+	{3747, -10000},
+	{3737, -5000},
+	{3728, 0},
+	{3718, 5000},
+	{3708, 10000},
+	{3698, 15000},
+	{3688, 20000},
+	{3678, 25000},
+	{3667, 30000},
+	{3656, 35000},
+	{3645, 40000},
+	{3634, 45000},
+	{3623, 50000},
+	{3611, 55000},
+	{3600, 60000},
+	{3588, 65000},
+	{3575, 70000},
+	{3563, 75000},
+	{3550, 80000},
+	{3537, 85000},
+	{3524, 90000},
+	{3510, 95000},
+	{3496, 100000},
+	{3482, 105000},
+	{3467, 110000},
+	{3452, 115000},
+	{3437, 120000},
+	{3421, 125000},
+	{0, 125000},
+};
+
+static u32 rk_tsadcv2_temp_to_code(long temp)
+{
+	int high, low, mid;
+
+	low = 0;
+	high = ARRAY_SIZE(v2_code_table) - 1;
+	mid = (high + low) / 2;
+
+	if (temp < v2_code_table[low].temp || temp > v2_code_table[high].temp)
+		return 0;
+
+	while (low <= high) {
+		if (temp == v2_code_table[mid].temp)
+			return v2_code_table[mid].code;
+		else if (temp < v2_code_table[mid].temp)
+			high = mid - 1;
+		else
+			low = mid + 1;
+		mid = (low + high) / 2;
+	}
+
+	return 0;
+}
+
+static long rk_tsadcv2_code_to_temp(u32 code)
+{
+	int high, low, mid;
+
+	low = 0;
+	high = ARRAY_SIZE(v2_code_table) - 1;
+	mid = (high + low) / 2;
+
+	if (code > v2_code_table[low].code || code < v2_code_table[high].code)
+		return 125000; /* No code available, return max temperature */
+
+	while (low <= high) {
+		if (code >= v2_code_table[mid].code && code <
+		    v2_code_table[mid - 1].code)
+			return v2_code_table[mid].temp;
+		else if (code < v2_code_table[mid].code)
+			low = mid + 1;
+		else
+			high = mid - 1;
+		mid = (low + high) / 2;
+	}
+
+	return 125000;
+}
+
+/**
+ * rk_tsadcv2_initialize - initialize TASDC Controller
+ * (1) Set TSADCV2_AUTO_PERIOD, configure the interleave between
+ * every two accessing of TSADC in normal operation.
+ * (2) Set TSADCV2_AUTO_PERIOD_HT, configure the interleave between
+ * every two accessing of TSADC after the temperature is higher
+ * than COM_SHUT or COM_INT.
+ * (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE,
+ * if the temperature is higher than COMP_INT or COMP_SHUT for
+ * "debounce" times, TSADC controller will generate interrupt or TSHUT.
+ */
+static void rk_tsadcv2_initialize(void __iomem *regs,
+				  enum tshut_polarity tshut_polarity)
+{
+	if (tshut_polarity == TSHUT_HIGH_ACTIVE)
+		writel_relaxed(0 | (TSADCV2_AUTO_TSHUT_POLARITY_HIGH),
+			       regs + TSADCV2_AUTO_CON);
+	else
+		writel_relaxed(0 | (TSADCV2_AUTO_TSHUT_POLARITY_LOW),
+			       regs + TSADCV2_AUTO_CON);
+
+	writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
+	writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
+		       regs + TSADCV2_HIGHT_INT_DEBOUNCE);
+	writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME,
+		       regs + TSADCV2_AUTO_PERIOD_HT);
+	writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
+		       regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
+}
+
+static void rk_tsadcv2_irq_ack(void __iomem *regs)
+{
+	u32 val;
+
+	val = readl_relaxed(regs + TSADCV2_INT_PD);
+	writel_relaxed(val & TSADCV2_INT_PD_CLEAR, regs + TSADCV2_INT_PD);
+}
+
+static void rk_tsadcv2_control(void __iomem *regs, bool enable)
+{
+	u32 val;
+
+	val = readl_relaxed(regs + TSADCV2_AUTO_CON);
+	if (enable)
+		val |= TSADCV2_AUTO_EN;
+	else
+		val &= ~TSADCV2_AUTO_EN;
+
+	writel_relaxed(val, regs + TSADCV2_AUTO_CON);
+}
+
+static int rk_tsadcv2_get_temp(int chn, void __iomem *regs, long *temp)
+{
+	u32 val;
+
+	/* the A/D value of the channel last conversion need some time */
+	val = readl_relaxed(regs + TSADCV2_DATA(chn));
+	if (val == 0)
+		return -EAGAIN;
+
+	*temp = rk_tsadcv2_code_to_temp(val);
+
+	return 0;
+}
+
+static void rk_tsadcv2_tshut_temp(int chn, void __iomem *regs, long temp)
+{
+	u32 tshut_value, val;
+
+	tshut_value = rk_tsadcv2_temp_to_code(temp);
+	writel_relaxed(tshut_value, regs + TSADCV2_COMP_SHUT(chn));
+
+	/* TSHUT will be valid */
+	val = readl_relaxed(regs + TSADCV2_AUTO_CON);
+	writel_relaxed(val | TSADCV2_AUTO_SRC_EN(chn), regs + TSADCV2_AUTO_CON);
+}
+
+static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs,
+				  enum tshut_mode mode)
+{
+	u32 val;
+
+	val = readl_relaxed(regs + TSADCV2_INT_EN);
+	if (mode == TSHUT_MODE_GPIO) {
+		val &= ~TSADCV2_SHUT_2CRU_SRC_EN(chn);
+		val |= TSADCV2_SHUT_2GPIO_SRC_EN(chn);
+	} else {
+		val &= ~TSADCV2_SHUT_2GPIO_SRC_EN(chn);
+		val |= TSADCV2_SHUT_2CRU_SRC_EN(chn);
+	}
+
+	writel_relaxed(val, regs + TSADCV2_INT_EN);
+}
+
+static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
+	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
+	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
+	.tshut_temp = 95000,
+
+	.initialize = rk_tsadcv2_initialize,
+	.irq_ack = rk_tsadcv2_irq_ack,
+	.control = rk_tsadcv2_control,
+	.get_temp = rk_tsadcv2_get_temp,
+	.set_tshut_temp = rk_tsadcv2_tshut_temp,
+	.set_tshut_mode = rk_tsadcv2_tshut_mode,
+};
+
+static const struct of_device_id of_rockchip_thermal_match[] = {
+	{
+		.compatible = "rockchip,rk3288-tsadc",
+		.data = (void *)&rk3288_tsadc_data,
+	},
+	{ /* end */ },
+};
+MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);
+
+static void
+rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on)
+{
+	struct thermal_zone_device *tzd = sensor->tzd;
+
+	tzd->ops->set_mode(tzd,
+		on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+}
+
+static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev)
+{
+	struct rockchip_thermal_data *thermal = dev;
+	int i;
+
+	dev_dbg(&thermal->pdev->dev, "thermal alarm\n");
+
+	thermal->chip->irq_ack(thermal->regs);
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
+		thermal_zone_device_update(thermal->sensors[i].tzd);
+
+	return IRQ_HANDLED;
+}
+
+static int rockchip_thermal_get_temp(void *_sensor, long *out_temp)
+{
+	struct rockchip_thermal_sensor *sensor = _sensor;
+	struct rockchip_thermal_data *thermal = sensor->thermal;
+	const struct rockchip_tsadc_chip *tsadc = sensor->thermal->chip;
+	int retval;
+
+	retval = tsadc->get_temp(sensor->id, thermal->regs, out_temp);
+	dev_dbg(&thermal->pdev->dev, "sensor %d - temp: %ld, retval: %d\n",
+		sensor->id, *out_temp, retval);
+
+	return retval;
+}
+
+static const struct thermal_zone_of_device_ops rockchip_of_thermal_ops = {
+	.get_temp = rockchip_thermal_get_temp,
+};
+
+static int rockchip_configure_from_dt(struct device *dev,
+				      struct device_node *np,
+				      struct rockchip_thermal_data *thermal)
+{
+	u32 shut_temp, tshut_mode, tshut_polarity;
+
+	if (of_property_read_u32(np, "rockchip,hw-tshut-temp", &shut_temp)) {
+		dev_warn(dev,
+			 "Missing tshut temp property, using default %ld\n",
+			 thermal->chip->tshut_temp);
+		thermal->tshut_temp = thermal->chip->tshut_temp;
+	} else {
+		thermal->tshut_temp = shut_temp;
+	}
+
+	if (thermal->tshut_temp > INT_MAX) {
+		dev_err(dev, "Invalid tshut temperature specified: %ld\n",
+			thermal->tshut_temp);
+		return -ERANGE;
+	}
+
+	if (of_property_read_u32(np, "rockchip,hw-tshut-mode", &tshut_mode)) {
+		dev_warn(dev,
+			 "Missing tshut mode property, using default (%s)\n",
+			 thermal->chip->tshut_mode == TSHUT_MODE_GPIO ?
+				"gpio" : "cru");
+		thermal->tshut_mode = thermal->chip->tshut_mode;
+	} else {
+		thermal->tshut_mode = tshut_mode;
+	}
+
+	if (thermal->tshut_mode > 1) {
+		dev_err(dev, "Invalid tshut mode specified: %d\n",
+			thermal->tshut_mode);
+		return -EINVAL;
+	}
+
+	if (of_property_read_u32(np, "rockchip,hw-tshut-polarity",
+				 &tshut_polarity)) {
+		dev_warn(dev,
+			 "Missing tshut-polarity property, using default (%s)\n",
+			 thermal->chip->tshut_polarity == TSHUT_LOW_ACTIVE ?
+				"low" : "high");
+		thermal->tshut_polarity = thermal->chip->tshut_polarity;
+	} else {
+		thermal->tshut_polarity = tshut_polarity;
+	}
+
+	if (thermal->tshut_polarity > 1) {
+		dev_err(dev, "Invalid tshut-polarity specified: %d\n",
+			thermal->tshut_polarity);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+rockchip_thermal_register_sensor(struct platform_device *pdev,
+				 struct rockchip_thermal_data *thermal,
+				 struct rockchip_thermal_sensor *sensor,
+				 enum sensor_id id)
+{
+	const struct rockchip_tsadc_chip *tsadc = thermal->chip;
+	int error;
+
+	tsadc->set_tshut_mode(id, thermal->regs, thermal->tshut_mode);
+	tsadc->set_tshut_temp(id, thermal->regs, thermal->tshut_temp);
+
+	sensor->thermal = thermal;
+	sensor->id = id;
+	sensor->tzd = thermal_zone_of_sensor_register(&pdev->dev, id, sensor,
+						      &rockchip_of_thermal_ops);
+	if (IS_ERR(sensor->tzd)) {
+		error = PTR_ERR(sensor->tzd);
+		dev_err(&pdev->dev, "failed to register sensor %d: %d\n",
+			id, error);
+		return error;
+	}
+
+	return 0;
+}
+
+/*
+ * Reset TSADC Controller, reset all tsadc registers.
+ */
+static void rockchip_thermal_reset_controller(struct reset_control *reset)
+{
+	reset_control_assert(reset);
+	usleep_range(10, 20);
+	reset_control_deassert(reset);
+}
+
+static int rockchip_thermal_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct rockchip_thermal_data *thermal;
+	const struct of_device_id *match;
+	struct resource *res;
+	int irq;
+	int i;
+	int error;
+
+	match = of_match_node(of_rockchip_thermal_match, np);
+	if (!match)
+		return -ENXIO;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no irq resource?\n");
+		return -EINVAL;
+	}
+
+	thermal = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_thermal_data),
+			       GFP_KERNEL);
+	if (!thermal)
+		return -ENOMEM;
+
+	thermal->pdev = pdev;
+
+	thermal->chip = (const struct rockchip_tsadc_chip *)match->data;
+	if (!thermal->chip)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	thermal->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(thermal->regs))
+		return PTR_ERR(thermal->regs);
+
+	thermal->reset = devm_reset_control_get(&pdev->dev, "tsadc-apb");
+	if (IS_ERR(thermal->reset)) {
+		error = PTR_ERR(thermal->reset);
+		dev_err(&pdev->dev, "failed to get tsadc reset: %d\n", error);
+		return error;
+	}
+
+	thermal->clk = devm_clk_get(&pdev->dev, "tsadc");
+	if (IS_ERR(thermal->clk)) {
+		error = PTR_ERR(thermal->clk);
+		dev_err(&pdev->dev, "failed to get tsadc clock: %d\n", error);
+		return error;
+	}
+
+	thermal->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
+	if (IS_ERR(thermal->pclk)) {
+		error = PTR_ERR(thermal->clk);
+		dev_err(&pdev->dev, "failed to get apb_pclk clock: %d\n",
+			error);
+		return error;
+	}
+
+	error = clk_prepare_enable(thermal->clk);
+	if (error) {
+		dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
+			error);
+		return error;
+	}
+
+	error = clk_prepare_enable(thermal->pclk);
+	if (error) {
+		dev_err(&pdev->dev, "failed to enable pclk: %d\n", error);
+		goto err_disable_clk;
+	}
+
+	rockchip_thermal_reset_controller(thermal->reset);
+
+	error = rockchip_configure_from_dt(&pdev->dev, np, thermal);
+	if (error) {
+		dev_err(&pdev->dev, "failed to parse device tree data: %d\n",
+			error);
+		goto err_disable_pclk;
+	}
+
+	thermal->chip->initialize(thermal->regs, thermal->tshut_polarity);
+
+	error = rockchip_thermal_register_sensor(pdev, thermal,
+						 &thermal->sensors[0],
+						 SENSOR_CPU);
+	if (error) {
+		dev_err(&pdev->dev,
+			"failed to register CPU thermal sensor: %d\n", error);
+		goto err_disable_pclk;
+	}
+
+	error = rockchip_thermal_register_sensor(pdev, thermal,
+						 &thermal->sensors[1],
+						 SENSOR_GPU);
+	if (error) {
+		dev_err(&pdev->dev,
+			"failed to register GPU thermal sensor: %d\n", error);
+		goto err_unregister_cpu_sensor;
+	}
+
+	error = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					  &rockchip_thermal_alarm_irq_thread,
+					  IRQF_ONESHOT,
+					  "rockchip_thermal", thermal);
+	if (error) {
+		dev_err(&pdev->dev,
+			"failed to request tsadc irq: %d\n", error);
+		goto err_unregister_gpu_sensor;
+	}
+
+	thermal->chip->control(thermal->regs, true);
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
+		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
+
+	platform_set_drvdata(pdev, thermal);
+
+	return 0;
+
+err_unregister_gpu_sensor:
+	thermal_zone_of_sensor_unregister(&pdev->dev, thermal->sensors[1].tzd);
+err_unregister_cpu_sensor:
+	thermal_zone_of_sensor_unregister(&pdev->dev, thermal->sensors[0].tzd);
+err_disable_pclk:
+	clk_disable_unprepare(thermal->pclk);
+err_disable_clk:
+	clk_disable_unprepare(thermal->clk);
+
+	return error;
+}
+
+static int rockchip_thermal_remove(struct platform_device *pdev)
+{
+	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++) {
+		struct rockchip_thermal_sensor *sensor = &thermal->sensors[i];
+
+		rockchip_thermal_toggle_sensor(sensor, false);
+		thermal_zone_of_sensor_unregister(&pdev->dev, sensor->tzd);
+	}
+
+	thermal->chip->control(thermal->regs, false);
+
+	clk_disable_unprepare(thermal->pclk);
+	clk_disable_unprepare(thermal->clk);
+
+	return 0;
+}
+
+static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
+		rockchip_thermal_toggle_sensor(&thermal->sensors[i], false);
+
+	thermal->chip->control(thermal->regs, false);
+
+	clk_disable(thermal->pclk);
+	clk_disable(thermal->clk);
+
+	return 0;
+}
+
+static int __maybe_unused rockchip_thermal_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
+	int i;
+	int error;
+
+	error = clk_enable(thermal->clk);
+	if (error)
+		return error;
+
+	error = clk_enable(thermal->pclk);
+	if (error)
+		return error;
+
+	rockchip_thermal_reset_controller(thermal->reset);
+
+	thermal->chip->initialize(thermal->regs, thermal->tshut_polarity);
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++) {
+		enum sensor_id id = thermal->sensors[i].id;
+
+		thermal->chip->set_tshut_mode(id, thermal->regs,
+					      thermal->tshut_mode);
+		thermal->chip->set_tshut_temp(id, thermal->regs,
+					      thermal->tshut_temp);
+	}
+
+	thermal->chip->control(thermal->regs, true);
+
+	for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
+		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(rockchip_thermal_pm_ops,
+			 rockchip_thermal_suspend, rockchip_thermal_resume);
+
+static struct platform_driver rockchip_thermal_driver = {
+	.driver = {
+		.name = "rockchip-thermal",
+		.owner = THIS_MODULE,
+		.pm = &rockchip_thermal_pm_ops,
+		.of_match_table = of_rockchip_thermal_match,
+	},
+	.probe = rockchip_thermal_probe,
+	.remove = rockchip_thermal_remove,
+};
+
+module_platform_driver(rockchip_thermal_driver);
+
+MODULE_DESCRIPTION("ROCKCHIP THERMAL Driver");
+MODULE_AUTHOR("Rockchip, Inc.");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:rockchip-thermal");

drivers/thermal/samsung/exynos_thermal_common.h

@@ -27,7 +27,6 @@
 #define SENSOR_NAME_LEN	16
 #define MAX_TRIP_COUNT	8
 #define MAX_COOLING_DEVICE 4
-#define MAX_TRIMINFO_CTRL_REG	2
 
 #define ACTIVE_INTERVAL 500
 #define IDLE_INTERVAL 10000

drivers/thermal/samsung/exynos_tmu.c

@@ -33,7 +33,87 @@
 
 #include "exynos_thermal_common.h"
 #include "exynos_tmu.h"
-#include "exynos_tmu_data.h"
+
+/* Exynos generic registers */
+#define EXYNOS_TMU_REG_TRIMINFO		0x0
+#define EXYNOS_TMU_REG_CONTROL		0x20
+#define EXYNOS_TMU_REG_STATUS		0x28
+#define EXYNOS_TMU_REG_CURRENT_TEMP	0x40
+#define EXYNOS_TMU_REG_INTEN		0x70
+#define EXYNOS_TMU_REG_INTSTAT		0x74
+#define EXYNOS_TMU_REG_INTCLEAR		0x78
+
+#define EXYNOS_TMU_TEMP_MASK		0xff
+#define EXYNOS_TMU_REF_VOLTAGE_SHIFT	24
+#define EXYNOS_TMU_REF_VOLTAGE_MASK	0x1f
+#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK	0xf
+#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT	8
+#define EXYNOS_TMU_CORE_EN_SHIFT	0
+
+/* Exynos3250 specific registers */
+#define EXYNOS_TMU_TRIMINFO_CON1	0x10
+
+/* Exynos4210 specific registers */
+#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP	0x44
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL0	0x50
+
+/* Exynos5250, Exynos4412, Exynos3250 specific registers */
+#define EXYNOS_TMU_TRIMINFO_CON2	0x14
+#define EXYNOS_THD_TEMP_RISE		0x50
+#define EXYNOS_THD_TEMP_FALL		0x54
+#define EXYNOS_EMUL_CON		0x80
+
+#define EXYNOS_TRIMINFO_RELOAD_ENABLE	1
+#define EXYNOS_TRIMINFO_25_SHIFT	0
+#define EXYNOS_TRIMINFO_85_SHIFT	8
+#define EXYNOS_TMU_TRIP_MODE_SHIFT	13
+#define EXYNOS_TMU_TRIP_MODE_MASK	0x7
+#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT	12
+
+#define EXYNOS_TMU_INTEN_RISE0_SHIFT	0
+#define EXYNOS_TMU_INTEN_RISE1_SHIFT	4
+#define EXYNOS_TMU_INTEN_RISE2_SHIFT	8
+#define EXYNOS_TMU_INTEN_RISE3_SHIFT	12
+#define EXYNOS_TMU_INTEN_FALL0_SHIFT	16
+
+#define EXYNOS_EMUL_TIME	0x57F0
+#define EXYNOS_EMUL_TIME_MASK	0xffff
+#define EXYNOS_EMUL_TIME_SHIFT	16
+#define EXYNOS_EMUL_DATA_SHIFT	8
+#define EXYNOS_EMUL_DATA_MASK	0xFF
+#define EXYNOS_EMUL_ENABLE	0x1
+
+/* Exynos5260 specific */
+#define EXYNOS5260_TMU_REG_INTEN		0xC0
+#define EXYNOS5260_TMU_REG_INTSTAT		0xC4
+#define EXYNOS5260_TMU_REG_INTCLEAR		0xC8
+#define EXYNOS5260_EMUL_CON			0x100
+
+/* Exynos4412 specific */
+#define EXYNOS4412_MUX_ADDR_VALUE          6
+#define EXYNOS4412_MUX_ADDR_SHIFT          20
+
+/*exynos5440 specific registers*/
+#define EXYNOS5440_TMU_S0_7_TRIM		0x000
+#define EXYNOS5440_TMU_S0_7_CTRL		0x020
+#define EXYNOS5440_TMU_S0_7_DEBUG		0x040
+#define EXYNOS5440_TMU_S0_7_TEMP		0x0f0
+#define EXYNOS5440_TMU_S0_7_TH0			0x110
+#define EXYNOS5440_TMU_S0_7_TH1			0x130
+#define EXYNOS5440_TMU_S0_7_TH2			0x150
+#define EXYNOS5440_TMU_S0_7_IRQEN		0x210
+#define EXYNOS5440_TMU_S0_7_IRQ			0x230
+/* exynos5440 common registers */
+#define EXYNOS5440_TMU_IRQ_STATUS		0x000
+#define EXYNOS5440_TMU_PMIN			0x004
+
+#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT	0
+#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT	1
+#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT	2
+#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT	3
+#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT	4
+#define EXYNOS5440_TMU_TH_RISE4_SHIFT		24
+#define EXYNOS5440_EFUSE_SWAP_OFFSET		8
 
 /**
  * struct exynos_tmu_data : A structure to hold the private data of the TMU
@@ -52,6 +132,11 @@
  * @temp_error2: fused value of the second point trim.
  * @regulator: pointer to the TMU regulator structure.
  * @reg_conf: pointer to structure to register with core thermal.
+ * @tmu_initialize: SoC specific TMU initialization method
+ * @tmu_control: SoC specific TMU control method
+ * @tmu_read: SoC specific TMU temperature read method
+ * @tmu_set_emulation: SoC specific TMU emulation setting method
+ * @tmu_clear_irqs: SoC specific TMU interrupts clearing method
  */
 struct exynos_tmu_data {
 	int id;
@@ -66,6 +151,12 @@ struct exynos_tmu_data {
 	u8 temp_error1, temp_error2;
 	struct regulator *regulator;
 	struct thermal_sensor_conf *reg_conf;
+	int (*tmu_initialize)(struct platform_device *pdev);
+	void (*tmu_control)(struct platform_device *pdev, bool on);
+	int (*tmu_read)(struct exynos_tmu_data *data);
+	void (*tmu_set_emulation)(struct exynos_tmu_data *data,
+				  unsigned long temp);
+	void (*tmu_clear_irqs)(struct exynos_tmu_data *data);
 };
 
 /*
@@ -122,83 +213,10 @@ static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
 	return temp;
 }
 
-static void exynos_tmu_clear_irqs(struct exynos_tmu_data *data)
-{
-	const struct exynos_tmu_registers *reg = data->pdata->registers;
-	unsigned int val_irq;
-
-	val_irq = readl(data->base + reg->tmu_intstat);
-	/*
-	 * Clear the interrupts.  Please note that the documentation for
-	 * Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly
-	 * states that INTCLEAR register has a different placing of bits
-	 * responsible for FALL IRQs than INTSTAT register.  Exynos5420
-	 * and Exynos5440 documentation is correct (Exynos4210 doesn't
-	 * support FALL IRQs at all).
-	 */
-	writel(val_irq, data->base + reg->tmu_intclear);
-}
-
-static int exynos_tmu_initialize(struct platform_device *pdev)
+static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
 {
-	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct exynos_tmu_platform_data *pdata = data->pdata;
-	const struct exynos_tmu_registers *reg = pdata->registers;
-	unsigned int status, trim_info = 0, con, ctrl;
-	unsigned int rising_threshold = 0, falling_threshold = 0;
-	int ret = 0, threshold_code, i;
-
-	mutex_lock(&data->lock);
-	clk_enable(data->clk);
-	if (!IS_ERR(data->clk_sec))
-		clk_enable(data->clk_sec);
 
-	if (TMU_SUPPORTS(pdata, READY_STATUS)) {
-		status = readb(data->base + reg->tmu_status);
-		if (!status) {
-			ret = -EBUSY;
-			goto out;
-		}
-	}
-
-	if (TMU_SUPPORTS(pdata, TRIM_RELOAD)) {
-		for (i = 0; i < reg->triminfo_ctrl_count; i++) {
-			if (pdata->triminfo_reload[i]) {
-				ctrl = readl(data->base +
-						reg->triminfo_ctrl[i]);
-				ctrl |= pdata->triminfo_reload[i];
-				writel(ctrl, data->base +
-						reg->triminfo_ctrl[i]);
-			}
-		}
-	}
-
-	/* Save trimming info in order to perform calibration */
-	if (data->soc == SOC_ARCH_EXYNOS5440) {
-		/*
-		 * For exynos5440 soc triminfo value is swapped between TMU0 and
-		 * TMU2, so the below logic is needed.
-		 */
-		switch (data->id) {
-		case 0:
-			trim_info = readl(data->base +
-			EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
-			break;
-		case 1:
-			trim_info = readl(data->base + reg->triminfo_data);
-			break;
-		case 2:
-			trim_info = readl(data->base -
-			EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
-		}
-	} else {
-		/* On exynos5420 the triminfo register is in the shared space */
-		if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO)
-			trim_info = readl(data->base_second +
-							reg->triminfo_data);
-		else
-			trim_info = readl(data->base + reg->triminfo_data);
-	}
 	data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
 	data->temp_error2 = ((trim_info >> EXYNOS_TRIMINFO_85_SHIFT) &
 				EXYNOS_TMU_TEMP_MASK);
@@ -212,69 +230,37 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 		data->temp_error2 =
 			(pdata->efuse_value >> EXYNOS_TRIMINFO_85_SHIFT) &
 			EXYNOS_TMU_TEMP_MASK;
+}
 
-	rising_threshold = readl(data->base + reg->threshold_th0);
+static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
+{
+	struct exynos_tmu_platform_data *pdata = data->pdata;
+	int i;
 
-	if (data->soc == SOC_ARCH_EXYNOS4210) {
-		/* Write temperature code for threshold */
-		threshold_code = temp_to_code(data, pdata->threshold);
-		writeb(threshold_code,
-			data->base + reg->threshold_temp);
-		for (i = 0; i < pdata->non_hw_trigger_levels; i++)
-			writeb(pdata->trigger_levels[i], data->base +
-			reg->threshold_th0 + i * sizeof(reg->threshold_th0));
+	for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
+		u8 temp = pdata->trigger_levels[i];
 
-		exynos_tmu_clear_irqs(data);
-	} else {
-		/* Write temperature code for rising and falling threshold */
-		for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
-			threshold_code = temp_to_code(data,
-						pdata->trigger_levels[i]);
-			rising_threshold &= ~(0xff << 8 * i);
-			rising_threshold |= threshold_code << 8 * i;
-			if (pdata->threshold_falling) {
-				threshold_code = temp_to_code(data,
-						pdata->trigger_levels[i] -
-						pdata->threshold_falling);
-				falling_threshold |= threshold_code << 8 * i;
-			}
-		}
+		if (falling)
+			temp -= pdata->threshold_falling;
+		else
+			threshold &= ~(0xff << 8 * i);
 
-		writel(rising_threshold,
-				data->base + reg->threshold_th0);
-		writel(falling_threshold,
-				data->base + reg->threshold_th1);
-
-		exynos_tmu_clear_irqs(data);
-
-		/* if last threshold limit is also present */
-		i = pdata->max_trigger_level - 1;
-		if (pdata->trigger_levels[i] &&
-				(pdata->trigger_type[i] == HW_TRIP)) {
-			threshold_code = temp_to_code(data,
-						pdata->trigger_levels[i]);
-			if (i == EXYNOS_MAX_TRIGGER_PER_REG - 1) {
-				/* 1-4 level to be assigned in th0 reg */
-				rising_threshold &= ~(0xff << 8 * i);
-				rising_threshold |= threshold_code << 8 * i;
-				writel(rising_threshold,
-					data->base + reg->threshold_th0);
-			} else if (i == EXYNOS_MAX_TRIGGER_PER_REG) {
-				/* 5th level to be assigned in th2 reg */
-				rising_threshold =
-				threshold_code << reg->threshold_th3_l0_shift;
-				writel(rising_threshold,
-					data->base + reg->threshold_th2);
-			}
-			con = readl(data->base + reg->tmu_ctrl);
-			con |= (1 << reg->therm_trip_en_shift);
-			writel(con, data->base + reg->tmu_ctrl);
-		}
+		threshold |= temp_to_code(data, temp) << 8 * i;
 	}
-	/*Clear the PMIN in the common TMU register*/
-	if (reg->tmu_pmin && !data->id)
-		writel(0, data->base_second + reg->tmu_pmin);
-out:
+
+	return threshold;
+}
+
+static int exynos_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+	if (!IS_ERR(data->clk_sec))
+		clk_enable(data->clk_sec);
+	ret = data->tmu_initialize(pdev);
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
 	if (!IS_ERR(data->clk_sec))
@@ -283,20 +269,13 @@ out:
 	return ret;
 }
 
-static void exynos_tmu_control(struct platform_device *pdev, bool on)
+static u32 get_con_reg(struct exynos_tmu_data *data, u32 con)
 {
-	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct exynos_tmu_platform_data *pdata = data->pdata;
-	const struct exynos_tmu_registers *reg = pdata->registers;
-	unsigned int con, interrupt_en;
 
-	mutex_lock(&data->lock);
-	clk_enable(data->clk);
-
-	con = readl(data->base + reg->tmu_ctrl);
-
-	if (pdata->test_mux)
-		con |= (pdata->test_mux << reg->test_mux_addr_shift);
+	if (data->soc == SOC_ARCH_EXYNOS4412 ||
+	    data->soc == SOC_ARCH_EXYNOS3250)
+		con |= (EXYNOS4412_MUX_ADDR_VALUE << EXYNOS4412_MUX_ADDR_SHIFT);
 
 	con &= ~(EXYNOS_TMU_REF_VOLTAGE_MASK << EXYNOS_TMU_REF_VOLTAGE_SHIFT);
 	con |= pdata->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT;
@@ -305,95 +284,287 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on)
 	con |= (pdata->gain << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT);
 
 	if (pdata->noise_cancel_mode) {
-		con &= ~(reg->therm_trip_mode_mask <<
-					reg->therm_trip_mode_shift);
-		con |= (pdata->noise_cancel_mode << reg->therm_trip_mode_shift);
+		con &= ~(EXYNOS_TMU_TRIP_MODE_MASK << EXYNOS_TMU_TRIP_MODE_SHIFT);
+		con |= (pdata->noise_cancel_mode << EXYNOS_TMU_TRIP_MODE_SHIFT);
 	}
 
-	if (on) {
-		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
-		interrupt_en =
-			pdata->trigger_enable[3] << reg->inten_rise3_shift |
-			pdata->trigger_enable[2] << reg->inten_rise2_shift |
-			pdata->trigger_enable[1] << reg->inten_rise1_shift |
-			pdata->trigger_enable[0] << reg->inten_rise0_shift;
-		if (TMU_SUPPORTS(pdata, FALLING_TRIP))
-			interrupt_en |=
-				interrupt_en << reg->inten_fall0_shift;
-	} else {
-		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
-		interrupt_en = 0; /* Disable all interrupts */
-	}
-	writel(interrupt_en, data->base + reg->tmu_inten);
-	writel(con, data->base + reg->tmu_ctrl);
+	return con;
+}
+
+static void exynos_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+	data->tmu_control(pdev, on);
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
 }
 
-static int exynos_tmu_read(struct exynos_tmu_data *data)
+static int exynos4210_tmu_initialize(struct platform_device *pdev)
 {
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct exynos_tmu_platform_data *pdata = data->pdata;
-	const struct exynos_tmu_registers *reg = pdata->registers;
-	u8 temp_code;
-	int temp;
+	unsigned int status;
+	int ret = 0, threshold_code, i;
 
-	mutex_lock(&data->lock);
-	clk_enable(data->clk);
+	status = readb(data->base + EXYNOS_TMU_REG_STATUS);
+	if (!status) {
+		ret = -EBUSY;
+		goto out;
+	}
 
-	temp_code = readb(data->base + reg->tmu_cur_temp);
+	sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO));
 
-	if (data->soc == SOC_ARCH_EXYNOS4210)
-		/* temp_code should range between 75 and 175 */
-		if (temp_code < 75 || temp_code > 175) {
-			temp = -ENODATA;
-			goto out;
+	/* Write temperature code for threshold */
+	threshold_code = temp_to_code(data, pdata->threshold);
+	writeb(threshold_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
+
+	for (i = 0; i < pdata->non_hw_trigger_levels; i++)
+		writeb(pdata->trigger_levels[i], data->base +
+		       EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4);
+
+	data->tmu_clear_irqs(data);
+out:
+	return ret;
+}
+
+static int exynos4412_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct exynos_tmu_platform_data *pdata = data->pdata;
+	unsigned int status, trim_info, con, ctrl, rising_threshold;
+	int ret = 0, threshold_code, i;
+
+	status = readb(data->base + EXYNOS_TMU_REG_STATUS);
+	if (!status) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	if (data->soc == SOC_ARCH_EXYNOS3250 ||
+	    data->soc == SOC_ARCH_EXYNOS4412 ||
+	    data->soc == SOC_ARCH_EXYNOS5250) {
+		if (data->soc == SOC_ARCH_EXYNOS3250) {
+			ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON1);
+			ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
+			writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON1);
 		}
+		ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON2);
+		ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
+		writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON2);
+	}
 
-	temp = code_to_temp(data, temp_code);
+	/* On exynos5420 the triminfo register is in the shared space */
+	if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO)
+		trim_info = readl(data->base_second + EXYNOS_TMU_REG_TRIMINFO);
+	else
+		trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
+
+	sanitize_temp_error(data, trim_info);
+
+	/* Write temperature code for rising and falling threshold */
+	rising_threshold = readl(data->base + EXYNOS_THD_TEMP_RISE);
+	rising_threshold = get_th_reg(data, rising_threshold, false);
+	writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
+	writel(get_th_reg(data, 0, true), data->base + EXYNOS_THD_TEMP_FALL);
+
+	data->tmu_clear_irqs(data);
+
+	/* if last threshold limit is also present */
+	i = pdata->max_trigger_level - 1;
+	if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
+		threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
+		/* 1-4 level to be assigned in th0 reg */
+		rising_threshold &= ~(0xff << 8 * i);
+		rising_threshold |= threshold_code << 8 * i;
+		writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
+		con = readl(data->base + EXYNOS_TMU_REG_CONTROL);
+		con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
+		writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+	}
 out:
-	clk_disable(data->clk);
-	mutex_unlock(&data->lock);
+	return ret;
+}
 
-	return temp;
+static int exynos5440_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct exynos_tmu_platform_data *pdata = data->pdata;
+	unsigned int trim_info = 0, con, rising_threshold;
+	int ret = 0, threshold_code, i;
+
+	/*
+	 * For exynos5440 soc triminfo value is swapped between TMU0 and
+	 * TMU2, so the below logic is needed.
+	 */
+	switch (data->id) {
+	case 0:
+		trim_info = readl(data->base + EXYNOS5440_EFUSE_SWAP_OFFSET +
+				 EXYNOS5440_TMU_S0_7_TRIM);
+		break;
+	case 1:
+		trim_info = readl(data->base + EXYNOS5440_TMU_S0_7_TRIM);
+		break;
+	case 2:
+		trim_info = readl(data->base - EXYNOS5440_EFUSE_SWAP_OFFSET +
+				  EXYNOS5440_TMU_S0_7_TRIM);
+	}
+	sanitize_temp_error(data, trim_info);
+
+	/* Write temperature code for rising and falling threshold */
+	rising_threshold = readl(data->base + EXYNOS5440_TMU_S0_7_TH0);
+	rising_threshold = get_th_reg(data, rising_threshold, false);
+	writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH0);
+	writel(0, data->base + EXYNOS5440_TMU_S0_7_TH1);
+
+	data->tmu_clear_irqs(data);
+
+	/* if last threshold limit is also present */
+	i = pdata->max_trigger_level - 1;
+	if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
+		threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
+		/* 5th level to be assigned in th2 reg */
+		rising_threshold =
+			threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT;
+		writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH2);
+		con = readl(data->base + EXYNOS5440_TMU_S0_7_CTRL);
+		con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
+		writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL);
+	}
+	/* Clear the PMIN in the common TMU register */
+	if (!data->id)
+		writel(0, data->base_second + EXYNOS5440_TMU_PMIN);
+	return ret;
 }
 
-#ifdef CONFIG_THERMAL_EMULATION
-static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
+static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
 {
-	struct exynos_tmu_data *data = drv_data;
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct exynos_tmu_platform_data *pdata = data->pdata;
-	const struct exynos_tmu_registers *reg = pdata->registers;
-	unsigned int val;
-	int ret = -EINVAL;
+	unsigned int con, interrupt_en;
 
-	if (!TMU_SUPPORTS(pdata, EMULATION))
-		goto out;
+	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
 
-	if (temp && temp < MCELSIUS)
-		goto out;
+	if (on) {
+		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		interrupt_en =
+			pdata->trigger_enable[3] << EXYNOS_TMU_INTEN_RISE3_SHIFT |
+			pdata->trigger_enable[2] << EXYNOS_TMU_INTEN_RISE2_SHIFT |
+			pdata->trigger_enable[1] << EXYNOS_TMU_INTEN_RISE1_SHIFT |
+			pdata->trigger_enable[0] << EXYNOS_TMU_INTEN_RISE0_SHIFT;
+		if (data->soc != SOC_ARCH_EXYNOS4210)
+			interrupt_en |=
+				interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
+	} else {
+		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		interrupt_en = 0; /* Disable all interrupts */
+	}
+	writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
+	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+}
+
+static void exynos5440_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct exynos_tmu_platform_data *pdata = data->pdata;
+	unsigned int con, interrupt_en;
+
+	con = get_con_reg(data, readl(data->base + EXYNOS5440_TMU_S0_7_CTRL));
+
+	if (on) {
+		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		interrupt_en =
+			pdata->trigger_enable[3] << EXYNOS5440_TMU_INTEN_RISE3_SHIFT |
+			pdata->trigger_enable[2] << EXYNOS5440_TMU_INTEN_RISE2_SHIFT |
+			pdata->trigger_enable[1] << EXYNOS5440_TMU_INTEN_RISE1_SHIFT |
+			pdata->trigger_enable[0] << EXYNOS5440_TMU_INTEN_RISE0_SHIFT;
+		interrupt_en |= interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT;
+	} else {
+		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		interrupt_en = 0; /* Disable all interrupts */
+	}
+	writel(interrupt_en, data->base + EXYNOS5440_TMU_S0_7_IRQEN);
+	writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL);
+}
+
+static int exynos_tmu_read(struct exynos_tmu_data *data)
+{
+	int ret;
 
 	mutex_lock(&data->lock);
 	clk_enable(data->clk);
+	ret = data->tmu_read(data);
+	if (ret >= 0)
+		ret = code_to_temp(data, ret);
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
 
-	val = readl(data->base + reg->emul_con);
+	return ret;
+}
 
+#ifdef CONFIG_THERMAL_EMULATION
+static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val,
+			    unsigned long temp)
+{
 	if (temp) {
 		temp /= MCELSIUS;
 
-		if (TMU_SUPPORTS(pdata, EMUL_TIME)) {
-			val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift);
-			val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift);
+		if (data->soc != SOC_ARCH_EXYNOS5440) {
+			val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT);
+			val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT);
 		}
-		val &= ~(EXYNOS_EMUL_DATA_MASK << reg->emul_temp_shift);
-		val |= (temp_to_code(data, temp) << reg->emul_temp_shift) |
+		val &= ~(EXYNOS_EMUL_DATA_MASK << EXYNOS_EMUL_DATA_SHIFT);
+		val |= (temp_to_code(data, temp) << EXYNOS_EMUL_DATA_SHIFT) |
 			EXYNOS_EMUL_ENABLE;
 	} else {
 		val &= ~EXYNOS_EMUL_ENABLE;
 	}
 
-	writel(val, data->base + reg->emul_con);
+	return val;
+}
+
+static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data,
+					 unsigned long temp)
+{
+	unsigned int val;
+	u32 emul_con;
+
+	if (data->soc == SOC_ARCH_EXYNOS5260)
+		emul_con = EXYNOS5260_EMUL_CON;
+	else
+		emul_con = EXYNOS_EMUL_CON;
+
+	val = readl(data->base + emul_con);
+	val = get_emul_con_reg(data, val, temp);
+	writel(val, data->base + emul_con);
+}
+
+static void exynos5440_tmu_set_emulation(struct exynos_tmu_data *data,
+					 unsigned long temp)
+{
+	unsigned int val;
+
+	val = readl(data->base + EXYNOS5440_TMU_S0_7_DEBUG);
+	val = get_emul_con_reg(data, val, temp);
+	writel(val, data->base + EXYNOS5440_TMU_S0_7_DEBUG);
+}
+
+static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
+{
+	struct exynos_tmu_data *data = drv_data;
+	int ret = -EINVAL;
+
+	if (data->soc == SOC_ARCH_EXYNOS4210)
+		goto out;
 
+	if (temp && temp < MCELSIUS)
+		goto out;
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+	data->tmu_set_emulation(data, temp);
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
 	return 0;
@@ -401,23 +572,41 @@ out:
 	return ret;
 }
 #else
+#define exynos4412_tmu_set_emulation NULL
+#define exynos5440_tmu_set_emulation NULL
 static int exynos_tmu_set_emulation(void *drv_data,	unsigned long temp)
 	{ return -EINVAL; }
 #endif/*CONFIG_THERMAL_EMULATION*/
 
+static int exynos4210_tmu_read(struct exynos_tmu_data *data)
+{
+	int ret = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
+
+	/* "temp_code" should range between 75 and 175 */
+	return (ret < 75 || ret > 175) ? -ENODATA : ret;
+}
+
+static int exynos4412_tmu_read(struct exynos_tmu_data *data)
+{
+	return readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
+}
+
+static int exynos5440_tmu_read(struct exynos_tmu_data *data)
+{
+	return readb(data->base + EXYNOS5440_TMU_S0_7_TEMP);
+}
+
 static void exynos_tmu_work(struct work_struct *work)
 {
 	struct exynos_tmu_data *data = container_of(work,
 			struct exynos_tmu_data, irq_work);
-	struct exynos_tmu_platform_data *pdata = data->pdata;
-	const struct exynos_tmu_registers *reg = pdata->registers;
 	unsigned int val_type;
 
 	if (!IS_ERR(data->clk_sec))
 		clk_enable(data->clk_sec);
 	/* Find which sensor generated this interrupt */
-	if (reg->tmu_irqstatus) {
-		val_type = readl(data->base_second + reg->tmu_irqstatus);
+	if (data->soc == SOC_ARCH_EXYNOS5440) {
+		val_type = readl(data->base_second + EXYNOS5440_TMU_IRQ_STATUS);
 		if (!((val_type >> data->id) & 0x1))
 			goto out;
 	}
@@ -429,7 +618,7 @@ static void exynos_tmu_work(struct work_struct *work)
 	clk_enable(data->clk);
 
 	/* TODO: take action based on particular interrupt */
-	exynos_tmu_clear_irqs(data);
+	data->tmu_clear_irqs(data);
 
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
@@ -437,6 +626,40 @@ out:
 	enable_irq(data->irq);
 }
 
+static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data)
+{
+	unsigned int val_irq;
+	u32 tmu_intstat, tmu_intclear;
+
+	if (data->soc == SOC_ARCH_EXYNOS5260) {
+		tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT;
+		tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR;
+	} else {
+		tmu_intstat = EXYNOS_TMU_REG_INTSTAT;
+		tmu_intclear = EXYNOS_TMU_REG_INTCLEAR;
+	}
+
+	val_irq = readl(data->base + tmu_intstat);
+	/*
+	 * Clear the interrupts.  Please note that the documentation for
+	 * Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly
+	 * states that INTCLEAR register has a different placing of bits
+	 * responsible for FALL IRQs than INTSTAT register.  Exynos5420
+	 * and Exynos5440 documentation is correct (Exynos4210 doesn't
+	 * support FALL IRQs at all).
+	 */
+	writel(val_irq, data->base + tmu_intclear);
+}
+
+static void exynos5440_tmu_clear_irqs(struct exynos_tmu_data *data)
+{
+	unsigned int val_irq;
+
+	val_irq = readl(data->base + EXYNOS5440_TMU_S0_7_IRQ);
+	/* clear the interrupts */
+	writel(val_irq, data->base + EXYNOS5440_TMU_S0_7_IRQ);
+}
+
 static irqreturn_t exynos_tmu_irq(int irq, void *id)
 {
 	struct exynos_tmu_data *data = id;
@@ -450,35 +673,35 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)
 static const struct of_device_id exynos_tmu_match[] = {
 	{
 		.compatible = "samsung,exynos3250-tmu",
-		.data = (void *)EXYNOS3250_TMU_DRV_DATA,
+		.data = &exynos3250_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos4210-tmu",
-		.data = (void *)EXYNOS4210_TMU_DRV_DATA,
+		.data = &exynos4210_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos4412-tmu",
-		.data = (void *)EXYNOS4412_TMU_DRV_DATA,
+		.data = &exynos4412_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos5250-tmu",
-		.data = (void *)EXYNOS5250_TMU_DRV_DATA,
+		.data = &exynos5250_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos5260-tmu",
-		.data = (void *)EXYNOS5260_TMU_DRV_DATA,
+		.data = &exynos5260_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos5420-tmu",
-		.data = (void *)EXYNOS5420_TMU_DRV_DATA,
+		.data = &exynos5420_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos5420-tmu-ext-triminfo",
-		.data = (void *)EXYNOS5420_TMU_DRV_DATA,
+		.data = &exynos5420_default_tmu_data,
 	},
 	{
 		.compatible = "samsung,exynos5440-tmu",
-		.data = (void *)EXYNOS5440_TMU_DRV_DATA,
+		.data = &exynos5440_default_tmu_data,
 	},
 	{},
 };
@@ -553,12 +776,47 @@ static int exynos_map_dt_data(struct platform_device *pdev)
 		dev_err(&pdev->dev, "No platform init data supplied.\n");
 		return -ENODEV;
 	}
+
 	data->pdata = pdata;
+	data->soc = pdata->type;
+
+	switch (data->soc) {
+	case SOC_ARCH_EXYNOS4210:
+		data->tmu_initialize = exynos4210_tmu_initialize;
+		data->tmu_control = exynos4210_tmu_control;
+		data->tmu_read = exynos4210_tmu_read;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		break;
+	case SOC_ARCH_EXYNOS3250:
+	case SOC_ARCH_EXYNOS4412:
+	case SOC_ARCH_EXYNOS5250:
+	case SOC_ARCH_EXYNOS5260:
+	case SOC_ARCH_EXYNOS5420:
+	case SOC_ARCH_EXYNOS5420_TRIMINFO:
+		data->tmu_initialize = exynos4412_tmu_initialize;
+		data->tmu_control = exynos4210_tmu_control;
+		data->tmu_read = exynos4412_tmu_read;
+		data->tmu_set_emulation = exynos4412_tmu_set_emulation;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		break;
+	case SOC_ARCH_EXYNOS5440:
+		data->tmu_initialize = exynos5440_tmu_initialize;
+		data->tmu_control = exynos5440_tmu_control;
+		data->tmu_read = exynos5440_tmu_read;
+		data->tmu_set_emulation = exynos5440_tmu_set_emulation;
+		data->tmu_clear_irqs = exynos5440_tmu_clear_irqs;
+		break;
+	default:
+		dev_err(&pdev->dev, "Platform not supported\n");
+		return -EINVAL;
+	}
+
 	/*
 	 * Check if the TMU shares some registers and then try to map the
 	 * memory of common registers.
 	 */
-	if (!TMU_SUPPORTS(pdata, ADDRESS_MULTIPLE))
+	if (data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO &&
+	    data->soc != SOC_ARCH_EXYNOS5440)
 		return 0;
 
 	if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
@@ -625,20 +883,6 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 		goto err_clk_sec;
 	}
 
-	if (pdata->type == SOC_ARCH_EXYNOS3250 ||
-	    pdata->type == SOC_ARCH_EXYNOS4210 ||
-	    pdata->type == SOC_ARCH_EXYNOS4412 ||
-	    pdata->type == SOC_ARCH_EXYNOS5250 ||
-	    pdata->type == SOC_ARCH_EXYNOS5260 ||
-	    pdata->type == SOC_ARCH_EXYNOS5420_TRIMINFO ||
-	    pdata->type == SOC_ARCH_EXYNOS5440)
-		data->soc = pdata->type;
-	else {
-		ret = -EINVAL;
-		dev_err(&pdev->dev, "Platform not supported\n");
-		goto err_clk;
-	}
-
 	ret = exynos_tmu_initialize(pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to initialize TMU\n");

drivers/thermal/samsung/exynos_tmu.h

@@ -40,114 +40,11 @@ enum soc_type {
 	SOC_ARCH_EXYNOS4412,
 	SOC_ARCH_EXYNOS5250,
 	SOC_ARCH_EXYNOS5260,
+	SOC_ARCH_EXYNOS5420,
 	SOC_ARCH_EXYNOS5420_TRIMINFO,
 	SOC_ARCH_EXYNOS5440,
 };
 
-/**
- * EXYNOS TMU supported features.
- * TMU_SUPPORT_EMULATION - This features is used to set user defined
- *			temperature to the TMU controller.
- * TMU_SUPPORT_MULTI_INST - This features denotes that the soc
- *			has many instances of TMU.
- * TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can
- *			be reloaded.
- * TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can
- *			be registered for falling trips also.
- * TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current
- *			state(active/idle) can be checked.
- * TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation
- *			sample time.
- * TMU_SUPPORT_ADDRESS_MULTIPLE - This feature tells that the different TMU
- *			sensors shares some common registers.
- * TMU_SUPPORT - macro to compare the above features with the supplied.
- */
-#define TMU_SUPPORT_EMULATION			BIT(0)
-#define TMU_SUPPORT_MULTI_INST			BIT(1)
-#define TMU_SUPPORT_TRIM_RELOAD			BIT(2)
-#define TMU_SUPPORT_FALLING_TRIP		BIT(3)
-#define TMU_SUPPORT_READY_STATUS		BIT(4)
-#define TMU_SUPPORT_EMUL_TIME			BIT(5)
-#define TMU_SUPPORT_ADDRESS_MULTIPLE		BIT(6)
-
-#define TMU_SUPPORTS(a, b)	(a->features & TMU_SUPPORT_ ## b)
-
-/**
- * struct exynos_tmu_register - register descriptors to access registers and
- * bitfields. The register validity, offsets and bitfield values may vary
- * slightly across different exynos SOC's.
- * @triminfo_data: register containing 2 pont trimming data
- * @triminfo_ctrl: trim info controller register.
- * @triminfo_ctrl_count: the number of trim info controller register.
- * @tmu_ctrl: TMU main controller register.
- * @test_mux_addr_shift: shift bits of test mux address.
- * @therm_trip_mode_shift: shift bits of tripping mode in tmu_ctrl register.
- * @therm_trip_mode_mask: mask bits of tripping mode in tmu_ctrl register.
- * @therm_trip_en_shift: shift bits of tripping enable in tmu_ctrl register.
- * @tmu_status: register drescribing the TMU status.
- * @tmu_cur_temp: register containing the current temperature of the TMU.
- * @threshold_temp: register containing the base threshold level.
- * @threshold_th0: Register containing first set of rising levels.
- * @threshold_th1: Register containing second set of rising levels.
- * @threshold_th2: Register containing third set of rising levels.
- * @threshold_th3_l0_shift: shift bits of level0 threshold temperature.
- * @tmu_inten: register containing the different threshold interrupt
-	enable bits.
- * @inten_rise0_shift: shift bits of rising 0 interrupt bits.
- * @inten_rise1_shift: shift bits of rising 1 interrupt bits.
- * @inten_rise2_shift: shift bits of rising 2 interrupt bits.
- * @inten_rise3_shift: shift bits of rising 3 interrupt bits.
- * @inten_fall0_shift: shift bits of falling 0 interrupt bits.
- * @tmu_intstat: Register containing the interrupt status values.
- * @tmu_intclear: Register for clearing the raised interrupt status.
- * @emul_con: TMU emulation controller register.
- * @emul_temp_shift: shift bits of emulation temperature.
- * @emul_time_shift: shift bits of emulation time.
- * @tmu_irqstatus: register to find which TMU generated interrupts.
- * @tmu_pmin: register to get/set the Pmin value.
- */
-struct exynos_tmu_registers {
-	u32	triminfo_data;
-
-	u32	triminfo_ctrl[MAX_TRIMINFO_CTRL_REG];
-	u32	triminfo_ctrl_count;
-
-	u32	tmu_ctrl;
-	u32     test_mux_addr_shift;
-	u32	therm_trip_mode_shift;
-	u32	therm_trip_mode_mask;
-	u32	therm_trip_en_shift;
-
-	u32	tmu_status;
-
-	u32	tmu_cur_temp;
-
-	u32	threshold_temp;
-
-	u32	threshold_th0;
-	u32	threshold_th1;
-	u32	threshold_th2;
-	u32	threshold_th3_l0_shift;
-
-	u32	tmu_inten;
-	u32	inten_rise0_shift;
-	u32	inten_rise1_shift;
-	u32	inten_rise2_shift;
-	u32	inten_rise3_shift;
-	u32	inten_fall0_shift;
-
-	u32	tmu_intstat;
-
-	u32	tmu_intclear;
-
-	u32	emul_con;
-	u32	emul_temp_shift;
-	u32	emul_time_shift;
-
-	u32	tmu_irqstatus;
-	u32	tmu_pmin;
-};
-
 /**
  * struct exynos_tmu_platform_data
  * @threshold: basic temperature for generating interrupt
@@ -192,16 +89,10 @@ struct exynos_tmu_registers {
  * @first_point_trim: temp value of the first point trimming
  * @second_point_trim: temp value of the second point trimming
  * @default_temp_offset: default temperature offset in case of no trimming
- * @test_mux; information if SoC supports test MUX
- * @triminfo_reload: reload value to read TRIMINFO register
  * @cal_type: calibration type for temperature
  * @freq_clip_table: Table representing frequency reduction percentage.
  * @freq_tab_count: Count of the above table as frequency reduction may
  *	applicable to only some of the trigger levels.
- * @registers: Pointer to structure containing all the TMU controller registers
- *	and bitfields shifts and masks.
- * @features: a bitfield value indicating the features supported in SOC like
- *	emulation, multi instance etc
  *
  * This structure is required for configuration of exynos_tmu driver.
  */
@@ -223,15 +114,11 @@ struct exynos_tmu_platform_data {
 	u8 first_point_trim;
 	u8 second_point_trim;
 	u8 default_temp_offset;
-	u8 test_mux;
-	u8 triminfo_reload[MAX_TRIMINFO_CTRL_REG];
 
 	enum calibration_type cal_type;
 	enum soc_type type;
 	struct freq_clip_table freq_tab[4];
 	unsigned int freq_tab_count;
-	const struct exynos_tmu_registers *registers;
-	unsigned int features;
 };
 
 /**
@@ -246,4 +133,12 @@ struct exynos_tmu_init_data {
 	struct exynos_tmu_platform_data tmu_data[];
 };
 
+extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos5420_default_tmu_data;
+extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
+
 #endif /* _EXYNOS_TMU_H */

drivers/thermal/samsung/exynos_tmu_data.c

@@ -22,24 +22,6 @@
 
 #include "exynos_thermal_common.h"
 #include "exynos_tmu.h"
-#include "exynos_tmu_data.h"
-
-#if defined(CONFIG_CPU_EXYNOS4210)
-static const struct exynos_tmu_registers exynos4210_tmu_registers = {
-	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
-	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-	.tmu_status = EXYNOS_TMU_REG_STATUS,
-	.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
-	.threshold_temp = EXYNOS4210_TMU_REG_THRESHOLD_TEMP,
-	.threshold_th0 = EXYNOS4210_TMU_REG_TRIG_LEVEL0,
-	.tmu_inten = EXYNOS_TMU_REG_INTEN,
-	.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
-	.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
-	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
-	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
-};
 
 struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
 	.tmu_data = {
@@ -75,40 +57,10 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
 		},
 		.freq_tab_count = 2,
 		.type = SOC_ARCH_EXYNOS4210,
-		.registers = &exynos4210_tmu_registers,
-		.features = TMU_SUPPORT_READY_STATUS,
 		},
 	},
 	.tmu_count = 1,
 };
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS3250)
-static const struct exynos_tmu_registers exynos3250_tmu_registers = {
-	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
-	.triminfo_ctrl[0] = EXYNOS_TMU_TRIMINFO_CON1,
-	.triminfo_ctrl[1] = EXYNOS_TMU_TRIMINFO_CON2,
-	.triminfo_ctrl_count = 2,
-	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-	.test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
-	.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
-	.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
-	.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
-	.tmu_status = EXYNOS_TMU_REG_STATUS,
-	.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
-	.threshold_th0 = EXYNOS_THD_TEMP_RISE,
-	.threshold_th1 = EXYNOS_THD_TEMP_FALL,
-	.tmu_inten = EXYNOS_TMU_REG_INTEN,
-	.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
-	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
-	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
-	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
-	.emul_con = EXYNOS_EMUL_CON,
-	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-};
 
 #define EXYNOS3250_TMU_DATA \
 	.threshold_falling = 10, \
@@ -144,54 +96,17 @@ static const struct exynos_tmu_registers exynos3250_tmu_registers = {
 		.freq_clip_max = 400 * 1000, \
 		.temp_level = 95, \
 	}, \
-	.freq_tab_count = 2, \
-	.triminfo_reload[0] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
-	.triminfo_reload[1] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
-	.registers = &exynos3250_tmu_registers, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
-			TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
-			TMU_SUPPORT_EMUL_TIME)
-#endif
+	.freq_tab_count = 2
 
-#if defined(CONFIG_SOC_EXYNOS3250)
 struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
 	.tmu_data = {
 		{
 			EXYNOS3250_TMU_DATA,
 			.type = SOC_ARCH_EXYNOS3250,
-			.test_mux = EXYNOS4412_MUX_ADDR_VALUE,
 		},
 	},
 	.tmu_count = 1,
 };
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
-static const struct exynos_tmu_registers exynos4412_tmu_registers = {
-	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
-	.triminfo_ctrl[0] = EXYNOS_TMU_TRIMINFO_CON2,
-	.triminfo_ctrl_count = 1,
-	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-	.test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
-	.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
-	.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
-	.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
-	.tmu_status = EXYNOS_TMU_REG_STATUS,
-	.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
-	.threshold_th0 = EXYNOS_THD_TEMP_RISE,
-	.threshold_th1 = EXYNOS_THD_TEMP_FALL,
-	.tmu_inten = EXYNOS_TMU_REG_INTEN,
-	.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
-	.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
-	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
-	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
-	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
-	.emul_con = EXYNOS_EMUL_CON,
-	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-};
 
 #define EXYNOS4412_TMU_DATA \
 	.threshold_falling = 10, \
@@ -227,28 +142,18 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
 		.freq_clip_max = 400 * 1000, \
 		.temp_level = 95, \
 	}, \
-	.freq_tab_count = 2, \
-	.triminfo_reload[0] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
-	.registers = &exynos4412_tmu_registers, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
-			TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
-			TMU_SUPPORT_EMUL_TIME)
-#endif
+	.freq_tab_count = 2
 
-#if defined(CONFIG_SOC_EXYNOS4412)
 struct exynos_tmu_init_data const exynos4412_default_tmu_data = {
 	.tmu_data = {
 		{
 			EXYNOS4412_TMU_DATA,
 			.type = SOC_ARCH_EXYNOS4412,
-			.test_mux = EXYNOS4412_MUX_ADDR_VALUE,
 		},
 	},
 	.tmu_count = 1,
 };
-#endif
 
-#if defined(CONFIG_SOC_EXYNOS5250)
 struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
 	.tmu_data = {
 		{
@@ -258,31 +163,6 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
 	},
 	.tmu_count = 1,
 };
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5260)
-static const struct exynos_tmu_registers exynos5260_tmu_registers = {
-	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
-	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-	.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
-	.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
-	.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
-	.tmu_status = EXYNOS_TMU_REG_STATUS,
-	.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
-	.threshold_th0 = EXYNOS_THD_TEMP_RISE,
-	.threshold_th1 = EXYNOS_THD_TEMP_FALL,
-	.tmu_inten = EXYNOS5260_TMU_REG_INTEN,
-	.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
-	.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
-	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
-	.tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT,
-	.tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR,
-	.emul_con = EXYNOS5260_EMUL_CON,
-	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-};
 
 #define __EXYNOS5260_TMU_DATA	\
 	.threshold_falling = 10, \
@@ -319,13 +199,10 @@ static const struct exynos_tmu_registers exynos5260_tmu_registers = {
 		.temp_level = 103, \
 	}, \
 	.freq_tab_count = 2, \
-	.registers = &exynos5260_tmu_registers, \
 
 #define EXYNOS5260_TMU_DATA \
 	__EXYNOS5260_TMU_DATA \
-	.type = SOC_ARCH_EXYNOS5260, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
-			TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME)
+	.type = SOC_ARCH_EXYNOS5260
 
 struct exynos_tmu_init_data const exynos5260_default_tmu_data = {
 	.tmu_data = {
@@ -337,82 +214,14 @@ struct exynos_tmu_init_data const exynos5260_default_tmu_data = {
 	},
 	.tmu_count = 5,
 };
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5420)
-static const struct exynos_tmu_registers exynos5420_tmu_registers = {
-	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
-	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-	.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
-	.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
-	.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
-	.tmu_status = EXYNOS_TMU_REG_STATUS,
-	.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
-	.threshold_th0 = EXYNOS_THD_TEMP_RISE,
-	.threshold_th1 = EXYNOS_THD_TEMP_FALL,
-	.tmu_inten = EXYNOS_TMU_REG_INTEN,
-	.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
-	/* INTEN_RISE3 Not availble in exynos5420 */
-	.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
-	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
-	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
-	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
-	.emul_con = EXYNOS_EMUL_CON,
-	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-};
-
-#define __EXYNOS5420_TMU_DATA	\
-	.threshold_falling = 10, \
-	.trigger_levels[0] = 85, \
-	.trigger_levels[1] = 103, \
-	.trigger_levels[2] = 110, \
-	.trigger_levels[3] = 120, \
-	.trigger_enable[0] = true, \
-	.trigger_enable[1] = true, \
-	.trigger_enable[2] = true, \
-	.trigger_enable[3] = false, \
-	.trigger_type[0] = THROTTLE_ACTIVE, \
-	.trigger_type[1] = THROTTLE_ACTIVE, \
-	.trigger_type[2] = SW_TRIP, \
-	.trigger_type[3] = HW_TRIP, \
-	.max_trigger_level = 4, \
-	.non_hw_trigger_levels = 3, \
-	.gain = 8, \
-	.reference_voltage = 16, \
-	.noise_cancel_mode = 4, \
-	.cal_type = TYPE_ONE_POINT_TRIMMING, \
-	.efuse_value = 55, \
-	.min_efuse_value = 40, \
-	.max_efuse_value = 100, \
-	.first_point_trim = 25, \
-	.second_point_trim = 85, \
-	.default_temp_offset = 50, \
-	.freq_tab[0] = { \
-		.freq_clip_max = 800 * 1000, \
-		.temp_level = 85, \
-	}, \
-	.freq_tab[1] = { \
-		.freq_clip_max = 200 * 1000, \
-		.temp_level = 103, \
-	}, \
-	.freq_tab_count = 2, \
-	.registers = &exynos5420_tmu_registers, \
 
 #define EXYNOS5420_TMU_DATA \
-	__EXYNOS5420_TMU_DATA \
-	.type = SOC_ARCH_EXYNOS5250, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
-			TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME)
+	__EXYNOS5260_TMU_DATA \
+	.type = SOC_ARCH_EXYNOS5420
 
 #define EXYNOS5420_TMU_DATA_SHARED \
-	__EXYNOS5420_TMU_DATA \
-	.type = SOC_ARCH_EXYNOS5420_TRIMINFO, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
-			TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME | \
-			TMU_SUPPORT_ADDRESS_MULTIPLE)
+	__EXYNOS5260_TMU_DATA \
+	.type = SOC_ARCH_EXYNOS5420_TRIMINFO
 
 struct exynos_tmu_init_data const exynos5420_default_tmu_data = {
 	.tmu_data = {
@@ -424,34 +233,6 @@ struct exynos_tmu_init_data const exynos5420_default_tmu_data = {
 	},
 	.tmu_count = 5,
 };
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5440)
-static const struct exynos_tmu_registers exynos5440_tmu_registers = {
-	.triminfo_data = EXYNOS5440_TMU_S0_7_TRIM,
-	.tmu_ctrl = EXYNOS5440_TMU_S0_7_CTRL,
-	.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
-	.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
-	.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
-	.tmu_status = EXYNOS5440_TMU_S0_7_STATUS,
-	.tmu_cur_temp = EXYNOS5440_TMU_S0_7_TEMP,
-	.threshold_th0 = EXYNOS5440_TMU_S0_7_TH0,
-	.threshold_th1 = EXYNOS5440_TMU_S0_7_TH1,
-	.threshold_th2 = EXYNOS5440_TMU_S0_7_TH2,
-	.threshold_th3_l0_shift = EXYNOS5440_TMU_TH_RISE4_SHIFT,
-	.tmu_inten = EXYNOS5440_TMU_S0_7_IRQEN,
-	.inten_rise0_shift = EXYNOS5440_TMU_INTEN_RISE0_SHIFT,
-	.inten_rise1_shift = EXYNOS5440_TMU_INTEN_RISE1_SHIFT,
-	.inten_rise2_shift = EXYNOS5440_TMU_INTEN_RISE2_SHIFT,
-	.inten_rise3_shift = EXYNOS5440_TMU_INTEN_RISE3_SHIFT,
-	.inten_fall0_shift = EXYNOS5440_TMU_INTEN_FALL0_SHIFT,
-	.tmu_intstat = EXYNOS5440_TMU_S0_7_IRQ,
-	.tmu_intclear = EXYNOS5440_TMU_S0_7_IRQ,
-	.tmu_irqstatus = EXYNOS5440_TMU_IRQ_STATUS,
-	.emul_con = EXYNOS5440_TMU_S0_7_DEBUG,
-	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-	.tmu_pmin = EXYNOS5440_TMU_PMIN,
-};
 
 #define EXYNOS5440_TMU_DATA \
 	.trigger_levels[0] = 100, \
@@ -471,10 +252,7 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
 	.first_point_trim = 25, \
 	.second_point_trim = 70, \
 	.default_temp_offset = 25, \
-	.type = SOC_ARCH_EXYNOS5440, \
-	.registers = &exynos5440_tmu_registers, \
-	.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
-			TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_ADDRESS_MULTIPLE),
+	.type = SOC_ARCH_EXYNOS5440
 
 struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
 	.tmu_data = {
@@ -484,4 +262,3 @@ struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
 	},
 	.tmu_count = 3,
 };
-#endif

drivers/thermal/samsung/exynos_tmu_data.h

@@ -1,159 +0,0 @@
-/*
- * exynos_tmu_data.h - Samsung EXYNOS tmu data header file
- *
- *  Copyright (C) 2013 Samsung Electronics
- *  Amit Daniel Kachhap <amit.daniel@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#ifndef _EXYNOS_TMU_DATA_H
-#define _EXYNOS_TMU_DATA_H
-
-/* Exynos generic registers */
-#define EXYNOS_TMU_REG_TRIMINFO		0x0
-#define EXYNOS_TMU_REG_CONTROL		0x20
-#define EXYNOS_TMU_REG_STATUS		0x28
-#define EXYNOS_TMU_REG_CURRENT_TEMP	0x40
-#define EXYNOS_TMU_REG_INTEN		0x70
-#define EXYNOS_TMU_REG_INTSTAT		0x74
-#define EXYNOS_TMU_REG_INTCLEAR		0x78
-
-#define EXYNOS_TMU_TEMP_MASK		0xff
-#define EXYNOS_TMU_REF_VOLTAGE_SHIFT	24
-#define EXYNOS_TMU_REF_VOLTAGE_MASK	0x1f
-#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK	0xf
-#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT	8
-#define EXYNOS_TMU_CORE_EN_SHIFT	0
-
-/* Exynos3250 specific registers */
-#define EXYNOS_TMU_TRIMINFO_CON1	0x10
-
-/* Exynos4210 specific registers */
-#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP	0x44
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL0	0x50
-
-/* Exynos5250, Exynos4412, Exynos3250 specific registers */
-#define EXYNOS_TMU_TRIMINFO_CON2	0x14
-#define EXYNOS_THD_TEMP_RISE		0x50
-#define EXYNOS_THD_TEMP_FALL		0x54
-#define EXYNOS_EMUL_CON		0x80
-
-#define EXYNOS_TRIMINFO_RELOAD_ENABLE	1
-#define EXYNOS_TRIMINFO_25_SHIFT	0
-#define EXYNOS_TRIMINFO_85_SHIFT	8
-#define EXYNOS_TMU_TRIP_MODE_SHIFT	13
-#define EXYNOS_TMU_TRIP_MODE_MASK	0x7
-#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT	12
-
-#define EXYNOS_TMU_INTEN_RISE0_SHIFT	0
-#define EXYNOS_TMU_INTEN_RISE1_SHIFT	4
-#define EXYNOS_TMU_INTEN_RISE2_SHIFT	8
-#define EXYNOS_TMU_INTEN_RISE3_SHIFT	12
-#define EXYNOS_TMU_INTEN_FALL0_SHIFT	16
-
-#define EXYNOS_EMUL_TIME	0x57F0
-#define EXYNOS_EMUL_TIME_MASK	0xffff
-#define EXYNOS_EMUL_TIME_SHIFT	16
-#define EXYNOS_EMUL_DATA_SHIFT	8
-#define EXYNOS_EMUL_DATA_MASK	0xFF
-#define EXYNOS_EMUL_ENABLE	0x1
-
-#define EXYNOS_MAX_TRIGGER_PER_REG	4
-
-/* Exynos5260 specific */
-#define EXYNOS5260_TMU_REG_INTEN		0xC0
-#define EXYNOS5260_TMU_REG_INTSTAT		0xC4
-#define EXYNOS5260_TMU_REG_INTCLEAR		0xC8
-#define EXYNOS5260_EMUL_CON			0x100
-
-/* Exynos4412 specific */
-#define EXYNOS4412_MUX_ADDR_VALUE          6
-#define EXYNOS4412_MUX_ADDR_SHIFT          20
-
-/*exynos5440 specific registers*/
-#define EXYNOS5440_TMU_S0_7_TRIM		0x000
-#define EXYNOS5440_TMU_S0_7_CTRL		0x020
-#define EXYNOS5440_TMU_S0_7_DEBUG		0x040
-#define EXYNOS5440_TMU_S0_7_STATUS		0x060
-#define EXYNOS5440_TMU_S0_7_TEMP		0x0f0
-#define EXYNOS5440_TMU_S0_7_TH0			0x110
-#define EXYNOS5440_TMU_S0_7_TH1			0x130
-#define EXYNOS5440_TMU_S0_7_TH2			0x150
-#define EXYNOS5440_TMU_S0_7_IRQEN		0x210
-#define EXYNOS5440_TMU_S0_7_IRQ			0x230
-/* exynos5440 common registers */
-#define EXYNOS5440_TMU_IRQ_STATUS		0x000
-#define EXYNOS5440_TMU_PMIN			0x004
-
-#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT	0
-#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT	1
-#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT	2
-#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT	3
-#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT	4
-#define EXYNOS5440_TMU_TH_RISE4_SHIFT		24
-#define EXYNOS5440_EFUSE_SWAP_OFFSET		8
-
-#if defined(CONFIG_SOC_EXYNOS3250)
-extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
-#define EXYNOS3250_TMU_DRV_DATA (&exynos3250_default_tmu_data)
-#else
-#define EXYNOS3250_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_CPU_EXYNOS4210)
-extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
-#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
-#else
-#define EXYNOS4210_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS4412)
-extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
-#define EXYNOS4412_TMU_DRV_DATA (&exynos4412_default_tmu_data)
-#else
-#define EXYNOS4412_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5250)
-extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
-#define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data)
-#else
-#define EXYNOS5250_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5260)
-extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
-#define EXYNOS5260_TMU_DRV_DATA (&exynos5260_default_tmu_data)
-#else
-#define EXYNOS5260_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5420)
-extern struct exynos_tmu_init_data const exynos5420_default_tmu_data;
-#define EXYNOS5420_TMU_DRV_DATA (&exynos5420_default_tmu_data)
-#else
-#define EXYNOS5420_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5440)
-extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
-#define EXYNOS5440_TMU_DRV_DATA (&exynos5440_default_tmu_data)
-#else
-#define EXYNOS5440_TMU_DRV_DATA (NULL)
-#endif
-
-#endif /*_EXYNOS_TMU_DATA_H*/

drivers/thermal/tegra_soctherm.c

@@ -0,0 +1,476 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Author:
+ *	Mikko Perttunen <mperttunen@nvidia.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/thermal.h>
+
+#include <soc/tegra/fuse.h>
+
+#define SENSOR_CONFIG0				0
+#define SENSOR_CONFIG0_STOP			BIT(0)
+#define SENSOR_CONFIG0_TALL_SHIFT		8
+#define SENSOR_CONFIG0_TCALC_OVER		BIT(4)
+#define SENSOR_CONFIG0_OVER			BIT(3)
+#define SENSOR_CONFIG0_CPTR_OVER		BIT(2)
+
+#define SENSOR_CONFIG1				4
+#define SENSOR_CONFIG1_TSAMPLE_SHIFT		0
+#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT		15
+#define SENSOR_CONFIG1_TEN_COUNT_SHIFT		24
+#define SENSOR_CONFIG1_TEMP_ENABLE		BIT(31)
+
+#define SENSOR_CONFIG2				8
+#define SENSOR_CONFIG2_THERMA_SHIFT		16
+#define SENSOR_CONFIG2_THERMB_SHIFT		0
+
+#define SENSOR_PDIV				0x1c0
+#define SENSOR_PDIV_T124			0x8888
+#define SENSOR_HOTSPOT_OFF			0x1c4
+#define SENSOR_HOTSPOT_OFF_T124			0x00060600
+#define SENSOR_TEMP1				0x1c8
+#define SENSOR_TEMP2				0x1cc
+
+#define SENSOR_TEMP_MASK			0xffff
+#define READBACK_VALUE_MASK			0xff00
+#define READBACK_VALUE_SHIFT			8
+#define READBACK_ADD_HALF			BIT(7)
+#define READBACK_NEGATE				BIT(1)
+
+#define FUSE_TSENSOR8_CALIB			0x180
+#define FUSE_SPARE_REALIGNMENT_REG_0		0x1fc
+
+#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK	0x1fff
+#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK	(0x1fff << 13)
+#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT	13
+
+#define FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK	0x3ff
+#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK	(0x7ff << 10)
+#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT	10
+
+#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_CP_MASK 0x3f
+#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK (0x1f << 21)
+#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT 21
+
+#define NOMINAL_CALIB_FT_T124			105
+#define NOMINAL_CALIB_CP_T124			25
+
+struct tegra_tsensor_configuration {
+	u32 tall, tsample, tiddq_en, ten_count, pdiv, tsample_ate, pdiv_ate;
+};
+
+struct tegra_tsensor {
+	const struct tegra_tsensor_configuration *config;
+	u32 base, calib_fuse_offset;
+	/* Correction values used to modify values read from calibration fuses */
+	s32 fuse_corr_alpha, fuse_corr_beta;
+};
+
+struct tegra_thermctl_zone {
+	void __iomem *reg;
+	unsigned int shift;
+};
+
+static const struct tegra_tsensor_configuration t124_tsensor_config = {
+	.tall = 16300,
+	.tsample = 120,
+	.tiddq_en = 1,
+	.ten_count = 1,
+	.pdiv = 8,
+	.tsample_ate = 480,
+	.pdiv_ate = 8
+};
+
+static const struct tegra_tsensor t124_tsensors[] = {
+	{
+		.config = &t124_tsensor_config,
+		.base = 0xc0,
+		.calib_fuse_offset = 0x098,
+		.fuse_corr_alpha = 1135400,
+		.fuse_corr_beta = -6266900,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0xe0,
+		.calib_fuse_offset = 0x084,
+		.fuse_corr_alpha = 1122220,
+		.fuse_corr_beta = -5700700,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x100,
+		.calib_fuse_offset = 0x088,
+		.fuse_corr_alpha = 1127000,
+		.fuse_corr_beta = -6768200,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x120,
+		.calib_fuse_offset = 0x12c,
+		.fuse_corr_alpha = 1110900,
+		.fuse_corr_beta = -6232000,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x140,
+		.calib_fuse_offset = 0x158,
+		.fuse_corr_alpha = 1122300,
+		.fuse_corr_beta = -5936400,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x160,
+		.calib_fuse_offset = 0x15c,
+		.fuse_corr_alpha = 1145700,
+		.fuse_corr_beta = -7124600,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x180,
+		.calib_fuse_offset = 0x154,
+		.fuse_corr_alpha = 1120100,
+		.fuse_corr_beta = -6000500,
+	},
+	{
+		.config = &t124_tsensor_config,
+		.base = 0x1a0,
+		.calib_fuse_offset = 0x160,
+		.fuse_corr_alpha = 1106500,
+		.fuse_corr_beta = -6729300,
+	},
+};
+
+struct tegra_soctherm {
+	struct reset_control *reset;
+	struct clk *clock_tsensor;
+	struct clk *clock_soctherm;
+	void __iomem *regs;
+
+	struct thermal_zone_device *thermctl_tzs[4];
+};
+
+struct tsensor_shared_calibration {
+	u32 base_cp, base_ft;
+	u32 actual_temp_cp, actual_temp_ft;
+};
+
+static int calculate_shared_calibration(struct tsensor_shared_calibration *r)
+{
+	u32 val, shifted_cp, shifted_ft;
+	int err;
+
+	err = tegra_fuse_readl(FUSE_TSENSOR8_CALIB, &val);
+	if (err)
+		return err;
+	r->base_cp = val & FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK;
+	r->base_ft = (val & FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK)
+		>> FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT;
+	val = ((val & FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK)
+		>> FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT);
+	shifted_ft = sign_extend32(val, 4);
+
+	err = tegra_fuse_readl(FUSE_SPARE_REALIGNMENT_REG_0, &val);
+	if (err)
+		return err;
+	shifted_cp = sign_extend32(val, 5);
+
+	r->actual_temp_cp = 2 * NOMINAL_CALIB_CP_T124 + shifted_cp;
+	r->actual_temp_ft = 2 * NOMINAL_CALIB_FT_T124 + shifted_ft;
+
+	return 0;
+}
+
+static s64 div64_s64_precise(s64 a, s64 b)
+{
+	s64 r, al;
+
+	/* Scale up for increased precision division */
+	al = a << 16;
+
+	r = div64_s64(al * 2 + 1, 2 * b);
+	return r >> 16;
+}
+
+static int
+calculate_tsensor_calibration(const struct tegra_tsensor *sensor,
+			      const struct tsensor_shared_calibration *shared,
+			      u32 *calib)
+{
+	u32 val;
+	s32 actual_tsensor_ft, actual_tsensor_cp, delta_sens, delta_temp,
+	    mult, div;
+	s16 therma, thermb;
+	s64 tmp;
+	int err;
+
+	err = tegra_fuse_readl(sensor->calib_fuse_offset, &val);
+	if (err)
+		return err;
+
+	actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12);
+	val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK)
+		>> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT;
+	actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12);
+
+	delta_sens = actual_tsensor_ft - actual_tsensor_cp;
+	delta_temp = shared->actual_temp_ft - shared->actual_temp_cp;
+
+	mult = sensor->config->pdiv * sensor->config->tsample_ate;
+	div = sensor->config->tsample * sensor->config->pdiv_ate;
+
+	therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult,
+				   (s64) delta_sens * div);
+
+	tmp = (s64)actual_tsensor_ft * shared->actual_temp_cp -
+	      (s64)actual_tsensor_cp * shared->actual_temp_ft;
+	thermb = div64_s64_precise(tmp, (s64)delta_sens);
+
+	therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha,
+				   (s64)1000000LL);
+	thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha +
+				   sensor->fuse_corr_beta, (s64)1000000LL);
+
+	*calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) |
+		 ((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT);
+
+	return 0;
+}
+
+static int enable_tsensor(struct tegra_soctherm *tegra,
+			  const struct tegra_tsensor *sensor,
+			  const struct tsensor_shared_calibration *shared)
+{
+	void __iomem *base = tegra->regs + sensor->base;
+	unsigned int val;
+	u32 calib;
+	int err;
+
+	err = calculate_tsensor_calibration(sensor, shared, &calib);
+	if (err)
+		return err;
+
+	val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT;
+	writel(val, base + SENSOR_CONFIG0);
+
+	val  = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT;
+	val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT;
+	val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT;
+	val |= SENSOR_CONFIG1_TEMP_ENABLE;
+	writel(val, base + SENSOR_CONFIG1);
+
+	writel(calib, base + SENSOR_CONFIG2);
+
+	return 0;
+}
+
+/*
+ * Translate from soctherm readback format to millicelsius.
+ * The soctherm readback format in bits is as follows:
+ *   TTTTTTTT H______N
+ * where T's contain the temperature in Celsius,
+ * H denotes an addition of 0.5 Celsius and N denotes negation
+ * of the final value.
+ */
+static long translate_temp(u16 val)
+{
+	long t;
+
+	t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000;
+	if (val & READBACK_ADD_HALF)
+		t += 500;
+	if (val & READBACK_NEGATE)
+		t *= -1;
+
+	return t;
+}
+
+static int tegra_thermctl_get_temp(void *data, long *out_temp)
+{
+	struct tegra_thermctl_zone *zone = data;
+	u32 val;
+
+	val = (readl(zone->reg) >> zone->shift) & SENSOR_TEMP_MASK;
+	*out_temp = translate_temp(val);
+
+	return 0;
+}
+
+static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = {
+	.get_temp = tegra_thermctl_get_temp,
+};
+
+static const struct of_device_id tegra_soctherm_of_match[] = {
+	{ .compatible = "nvidia,tegra124-soctherm" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match);
+
+struct thermctl_zone_desc {
+	unsigned int offset;
+	unsigned int shift;
+};
+
+static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = {
+	{ SENSOR_TEMP1, 16 },
+	{ SENSOR_TEMP2, 16 },
+	{ SENSOR_TEMP1, 0 },
+	{ SENSOR_TEMP2, 0 }
+};
+
+static int tegra_soctherm_probe(struct platform_device *pdev)
+{
+	struct tegra_soctherm *tegra;
+	struct thermal_zone_device *tz;
+	struct tsensor_shared_calibration shared_calib;
+	struct resource *res;
+	unsigned int i;
+	int err;
+
+	const struct tegra_tsensor *tsensors = t124_tsensors;
+
+	tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);
+	if (!tegra)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	tegra->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(tegra->regs))
+		return PTR_ERR(tegra->regs);
+
+	tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm");
+	if (IS_ERR(tegra->reset)) {
+		dev_err(&pdev->dev, "can't get soctherm reset\n");
+		return PTR_ERR(tegra->reset);
+	}
+
+	tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor");
+	if (IS_ERR(tegra->clock_tsensor)) {
+		dev_err(&pdev->dev, "can't get tsensor clock\n");
+		return PTR_ERR(tegra->clock_tsensor);
+	}
+
+	tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm");
+	if (IS_ERR(tegra->clock_soctherm)) {
+		dev_err(&pdev->dev, "can't get soctherm clock\n");
+		return PTR_ERR(tegra->clock_soctherm);
+	}
+
+	reset_control_assert(tegra->reset);
+
+	err = clk_prepare_enable(tegra->clock_soctherm);
+	if (err)
+		return err;
+
+	err = clk_prepare_enable(tegra->clock_tsensor);
+	if (err) {
+		clk_disable_unprepare(tegra->clock_soctherm);
+		return err;
+	}
+
+	reset_control_deassert(tegra->reset);
+
+	/* Initialize raw sensors */
+
+	err = calculate_shared_calibration(&shared_calib);
+	if (err)
+		goto disable_clocks;
+
+	for (i = 0; i < ARRAY_SIZE(t124_tsensors); ++i) {
+		err = enable_tsensor(tegra, tsensors + i, &shared_calib);
+		if (err)
+			goto disable_clocks;
+	}
+
+	writel(SENSOR_PDIV_T124, tegra->regs + SENSOR_PDIV);
+	writel(SENSOR_HOTSPOT_OFF_T124, tegra->regs + SENSOR_HOTSPOT_OFF);
+
+	/* Initialize thermctl sensors */
+
+	for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
+		struct tegra_thermctl_zone *zone =
+			devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL);
+		if (!zone) {
+			err = -ENOMEM;
+			goto unregister_tzs;
+		}
+
+		zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset;
+		zone->shift = t124_thermctl_temp_zones[i].shift;
+
+		tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone,
+						     &tegra_of_thermal_ops);
+		if (IS_ERR(tz)) {
+			err = PTR_ERR(tz);
+			dev_err(&pdev->dev, "failed to register sensor: %d\n",
+				err);
+			goto unregister_tzs;
+		}
+
+		tegra->thermctl_tzs[i] = tz;
+	}
+
+	return 0;
+
+unregister_tzs:
+	while (i--)
+		thermal_zone_of_sensor_unregister(&pdev->dev,
+						  tegra->thermctl_tzs[i]);
+
+disable_clocks:
+	clk_disable_unprepare(tegra->clock_tsensor);
+	clk_disable_unprepare(tegra->clock_soctherm);
+
+	return err;
+}
+
+static int tegra_soctherm_remove(struct platform_device *pdev)
+{
+	struct tegra_soctherm *tegra = platform_get_drvdata(pdev);
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
+		thermal_zone_of_sensor_unregister(&pdev->dev,
+						  tegra->thermctl_tzs[i]);
+	}
+
+	clk_disable_unprepare(tegra->clock_tsensor);
+	clk_disable_unprepare(tegra->clock_soctherm);
+
+	return 0;
+}
+
+static struct platform_driver tegra_soctherm_driver = {
+	.probe = tegra_soctherm_probe,
+	.remove = tegra_soctherm_remove,
+	.driver = {
+		.name = "tegra-soctherm",
+		.of_match_table = tegra_soctherm_of_match,
+	},
+};
+module_platform_driver(tegra_soctherm_driver);
+
+MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>");
+MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver");
+MODULE_LICENSE("GPL v2");

drivers/thermal/thermal_core.c

@@ -368,7 +368,7 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 	tz->ops->get_trip_temp(tz, trip, &trip_temp);
 
 	/* If we have not crossed the trip_temp, we do not care. */
-	if (tz->temperature < trip_temp)
+	if (trip_temp <= 0 || tz->temperature < trip_temp)
 		return;
 
 	trace_thermal_zone_trip(tz, trip, trip_type);
@@ -757,6 +757,7 @@ policy_store(struct device *dev, struct device_attribute *attr,
 	snprintf(name, sizeof(name), "%s", buf);
 
 	mutex_lock(&thermal_governor_lock);
+	mutex_lock(&tz->lock);
 
 	gov = __find_governor(strim(name));
 	if (!gov)
@@ -766,6 +767,7 @@ policy_store(struct device *dev, struct device_attribute *attr,
 	ret = count;
 
 exit:
+	mutex_unlock(&tz->lock);
 	mutex_unlock(&thermal_governor_lock);
 	return ret;
 }
@@ -1835,10 +1837,10 @@ static int __init thermal_init(void)
 
 exit_netlink:
 	genetlink_exit();
-unregister_governors:
-	thermal_unregister_governors();
 unregister_class:
 	class_unregister(&thermal_class);
+unregister_governors:
+	thermal_unregister_governors();
 error:
 	idr_destroy(&thermal_tz_idr);
 	idr_destroy(&thermal_cdev_idr);

drivers/thermal/thermal_core.h

@@ -89,9 +89,27 @@ static inline void thermal_gov_user_space_unregister(void) {}
 #ifdef CONFIG_THERMAL_OF
 int of_parse_thermal_zones(void);
 void of_thermal_destroy_zones(void);
+int of_thermal_get_ntrips(struct thermal_zone_device *);
+bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
+const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *);
 #else
 static inline int of_parse_thermal_zones(void) { return 0; }
 static inline void of_thermal_destroy_zones(void) { }
+static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
+{
+	return 0;
+}
+static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
+					    int trip)
+{
+	return 0;
+}
+static inline const struct thermal_trip * const
+of_thermal_get_trip_points(struct thermal_zone_device *tz)
+{
+	return NULL;
+}
 #endif
 
 #endif /* __THERMAL_CORE_H__ */

drivers/thermal/ti-soc-thermal/ti-thermal-common.c

@@ -286,6 +286,11 @@ static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal,
 	return ti_thermal_get_trip_temp(thermal, OMAP_TRIP_NUMBER - 1, temp);
 }
 
+static const struct thermal_zone_of_device_ops ti_of_thermal_ops = {
+	.get_temp = __ti_thermal_get_temp,
+	.get_trend = __ti_thermal_get_trend,
+};
+
 static struct thermal_zone_device_ops ti_thermal_ops = {
 	.get_temp = ti_thermal_get_temp,
 	.get_trend = ti_thermal_get_trend,
@@ -333,8 +338,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 
 	/* in case this is specified by DT */
 	data->ti_thermal = thermal_zone_of_sensor_register(bgp->dev, id,
-					data, __ti_thermal_get_temp,
-					__ti_thermal_get_trend);
+					data, &ti_of_thermal_ops);
 	if (IS_ERR(data->ti_thermal)) {
 		/* Create thermal zone */
 		data->ti_thermal = thermal_zone_device_register(domain,

include/dt-bindings/thermal/tegra124-soctherm.h

@@ -0,0 +1,13 @@
+/*
+ * This header provides constants for binding nvidia,tegra124-soctherm.
+ */
+
+#ifndef _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
+#define _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
+
+#define TEGRA124_SOCTHERM_SENSOR_CPU 0
+#define TEGRA124_SOCTHERM_SENSOR_MEM 1
+#define TEGRA124_SOCTHERM_SENSOR_GPU 2
+#define TEGRA124_SOCTHERM_SENSOR_PLLX 3
+
+#endif

include/linux/clock_cooling.h

@@ -0,0 +1,65 @@
+/*
+ *  linux/include/linux/clock_cooling.h
+ *
+ *  Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
+ *
+ *  Copyright (C) 2013	Texas Instruments Inc.
+ *  Contact:  Eduardo Valentin <eduardo.valentin@ti.com>
+ *
+ *  Highly based on cpu_cooling.c.
+ *  Copyright (C) 2012	Samsung Electronics Co., Ltd(http://www.samsung.com)
+ *  Copyright (C) 2012  Amit Daniel <amit.kachhap@linaro.org>
+ *
+ *  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; version 2 of the License.
+ *
+ *  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.
+ */
+
+#ifndef __CPU_COOLING_H__
+#define __CPU_COOLING_H__
+
+#include <linux/of.h>
+#include <linux/thermal.h>
+#include <linux/cpumask.h>
+
+#ifdef CONFIG_CLOCK_THERMAL
+/**
+ * clock_cooling_register - function to create clock cooling device.
+ * @dev: struct device pointer to the device used as clock cooling device.
+ * @clock_name: string containing the clock used as cooling mechanism.
+ */
+struct thermal_cooling_device *
+clock_cooling_register(struct device *dev, const char *clock_name);
+
+/**
+ * clock_cooling_unregister - function to remove clock cooling device.
+ * @cdev: thermal cooling device pointer.
+ */
+void clock_cooling_unregister(struct thermal_cooling_device *cdev);
+
+unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
+				      unsigned long freq);
+#else /* !CONFIG_CLOCK_THERMAL */
+static inline struct thermal_cooling_device *
+clock_cooling_register(struct device *dev, const char *clock_name)
+{
+	return NULL;
+}
+static inline
+void clock_cooling_unregister(struct thermal_cooling_device *cdev)
+{
+}
+static inline
+unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
+				      unsigned long freq)
+{
+	return THERMAL_CSTATE_INVALID;
+}
+#endif	/* CONFIG_CLOCK_THERMAL */
+
+#endif /* __CPU_COOLING_H__ */

include/linux/thermal.h

@@ -29,10 +29,10 @@
 #include <linux/idr.h>
 #include <linux/device.h>
 #include <linux/workqueue.h>
+#include <uapi/linux/thermal.h>
 
 #define THERMAL_TRIPS_NONE	-1
 #define THERMAL_MAX_TRIPS	12
-#define THERMAL_NAME_LENGTH	20
 
 /* invalid cooling state */
 #define THERMAL_CSTATE_INVALID -1UL
@@ -49,11 +49,6 @@
 #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
 #define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
 
-/* Adding event notification support elements */
-#define THERMAL_GENL_FAMILY_NAME                "thermal_event"
-#define THERMAL_GENL_VERSION                    0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_grp"
-
 /* Default Thermal Governor */
 #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
 #define DEFAULT_THERMAL_GOVERNOR       "step_wise"
@@ -86,30 +81,6 @@ enum thermal_trend {
 	THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */
 };
 
-/* Events supported by Thermal Netlink */
-enum events {
-	THERMAL_AUX0,
-	THERMAL_AUX1,
-	THERMAL_CRITICAL,
-	THERMAL_DEV_FAULT,
-};
-
-/* attributes of thermal_genl_family */
-enum {
-	THERMAL_GENL_ATTR_UNSPEC,
-	THERMAL_GENL_ATTR_EVENT,
-	__THERMAL_GENL_ATTR_MAX,
-};
-#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
-
-/* commands supported by the thermal_genl_family */
-enum {
-	THERMAL_GENL_CMD_UNSPEC,
-	THERMAL_GENL_CMD_EVENT,
-	__THERMAL_GENL_CMD_MAX,
-};
-#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
-
 struct thermal_zone_device_ops {
 	int (*bind) (struct thermal_zone_device *,
 		     struct thermal_cooling_device *);
@@ -289,19 +260,49 @@ struct thermal_genl_event {
 	enum events event;
 };
 
+/**
+ * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
+ *
+ * Mandatory:
+ * @get_temp: a pointer to a function that reads the sensor temperature.
+ *
+ * Optional:
+ * @get_trend: a pointer to a function that reads the sensor temperature trend.
+ * @set_emul_temp: a pointer to a function that sets sensor emulated
+ *		   temperature.
+ */
+struct thermal_zone_of_device_ops {
+	int (*get_temp)(void *, long *);
+	int (*get_trend)(void *, long *);
+	int (*set_emul_temp)(void *, unsigned long);
+};
+
+/**
+ * struct thermal_trip - representation of a point in temperature domain
+ * @np: pointer to struct device_node that this trip point was created from
+ * @temperature: temperature value in miliCelsius
+ * @hysteresis: relative hysteresis in miliCelsius
+ * @type: trip point type
+ */
+
+struct thermal_trip {
+	struct device_node *np;
+	unsigned long int temperature;
+	unsigned long int hysteresis;
+	enum thermal_trip_type type;
+};
+
 /* Function declarations */
 #ifdef CONFIG_THERMAL_OF
 struct thermal_zone_device *
-thermal_zone_of_sensor_register(struct device *dev, int id,
-				void *data, int (*get_temp)(void *, long *),
-				int (*get_trend)(void *, long *));
+thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
+				const struct thermal_zone_of_device_ops *ops);
 void thermal_zone_of_sensor_unregister(struct device *dev,
 				       struct thermal_zone_device *tz);
 #else
 static inline struct thermal_zone_device *
-thermal_zone_of_sensor_register(struct device *dev, int id,
-				void *data, int (*get_temp)(void *, long *),
-				int (*get_trend)(void *, long *))
+thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
+				const struct thermal_zone_of_device_ops *ops)
 {
 	return NULL;
 }

include/uapi/linux/Kbuild

@@ -387,6 +387,7 @@ header-y += tcp.h
 header-y += tcp_metrics.h
 header-y += telephony.h
 header-y += termios.h
+header-y += thermal.h
 header-y += time.h
 header-y += times.h
 header-y += timex.h

include/uapi/linux/thermal.h

@@ -0,0 +1,35 @@
+#ifndef _UAPI_LINUX_THERMAL_H
+#define _UAPI_LINUX_THERMAL_H
+
+#define THERMAL_NAME_LENGTH	20
+
+/* Adding event notification support elements */
+#define THERMAL_GENL_FAMILY_NAME                "thermal_event"
+#define THERMAL_GENL_VERSION                    0x01
+#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_grp"
+
+/* Events supported by Thermal Netlink */
+enum events {
+	THERMAL_AUX0,
+	THERMAL_AUX1,
+	THERMAL_CRITICAL,
+	THERMAL_DEV_FAULT,
+};
+
+/* attributes of thermal_genl_family */
+enum {
+	THERMAL_GENL_ATTR_UNSPEC,
+	THERMAL_GENL_ATTR_EVENT,
+	__THERMAL_GENL_ATTR_MAX,
+};
+#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
+
+/* commands supported by the thermal_genl_family */
+enum {
+	THERMAL_GENL_CMD_UNSPEC,
+	THERMAL_GENL_CMD_EVENT,
+	__THERMAL_GENL_CMD_MAX,
+};
+#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
+
+#endif /* _UAPI_LINUX_THERMAL_H */