Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/evalenti/linux-soc-thermal

Pull thermal soc updates from Eduardo Valentin:

 - thermal core has a new devm_* API for registering cooling devices. I
   took the entire series, that is why you see changes on drivers/hwmon
   in this pull (Guenter Roeck)

 - rockchip thermal driver gains support to PX30 SoC (Elaine Zhang)

 - the generic-adc thermal driver now considers the lookup table DT
   property as optional (Jean-Francois Dagenais)

 - Refactoring of tsens thermal driver (Amit Kucheria)

 - Cleanups on cpu cooling driver (Daniel Lezcano)

 - broadcom thermal driver dropped support to ACPI (Srinath Mannam)

 - tegra thermal driver gains support to OC hw throttle and GPU throtle
   (Wei Ni)

 - Fixes in several thermal drivers.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (59 commits)
  hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (npcm750-pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (mlxreg-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register
  thermal: rcar_gen3_thermal: Fix to show correct trip points number
  thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs
  thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
  thermal: rockchip: Support the PX30 SoC in thermal driver
  dt-bindings: rockchip-thermal: Support the PX30 SoC compatible
  thermal: rockchip: fix up the tsadc pinctrl setting error
  thermal: broadcom: Remove ACPI support
  thermal: Fix build error of missing devm_ioremap_resource on UM
  thermal/drivers/cpu_cooling: Remove pointless field
  thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX)
  thermal/drivers/cpu_cooling: Fixup the header and copyright
  thermal/drivers/cpu_cooling: Remove pointless test in power2state()
  thermal: rcar_gen3_thermal: disable interrupt in .remove
  thermal: rcar_gen3_thermal: fix interrupt type
  thermal: Introduce devm_thermal_of_cooling_device_register
  ...

Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt

@@ -0,0 +1,33 @@
+Amazon's Annapurna Labs Thermal Sensor
+
+Simple thermal device that allows temperature reading by a single MMIO
+transaction.
+
+Required properties:
+- compatible: "amazon,al-thermal".
+- reg: The physical base address and length of the sensor's registers.
+- #thermal-sensor-cells: Must be 1. See ./thermal.txt for a description.
+
+Example:
+	thermal: thermal {
+		compatible = "amazon,al-thermal";
+		reg = <0x0 0x05002860 0x0 0x1>;
+		#thermal-sensor-cells = <0x1>;
+	};
+
+	thermal-zones {
+		thermal-z0 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&thermal 0>;
+			trips {
+				critical {
+					temperature = <105000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+
+		};
+	};
+

Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt

@@ -52,13 +52,47 @@ Required properties :
         Must set as following values:
         TEGRA_SOCTHERM_THROT_LEVEL_LOW, TEGRA_SOCTHERM_THROT_LEVEL_MED
         TEGRA_SOCTHERM_THROT_LEVEL_HIGH, TEGRA_SOCTHERM_THROT_LEVEL_NONE
+      - nvidia,gpu-throt-level: This property is for Tegra124 and Tegra210.
+        It is the level of pulse skippers, which used to throttle clock
+        frequencies. It indicates gpu clock throttling depth and can be
+        programmed to any of the following values which represent a throttling
+        percentage:
+        TEGRA_SOCTHERM_THROT_LEVEL_NONE (0%)
+        TEGRA_SOCTHERM_THROT_LEVEL_LOW (50%),
+        TEGRA_SOCTHERM_THROT_LEVEL_MED (75%),
+        TEGRA_SOCTHERM_THROT_LEVEL_HIGH (85%).
       - #cooling-cells: Should be 1. This cooling device only support on/off state.
         See ./thermal.txt for a description of this property.
 
+      Optional properties: The following properties are T210 specific and
+      valid only for OCx throttle events.
+      - nvidia,count-threshold: Specifies the number of OC events that are
+        required for triggering an interrupt. Interrupts are not triggered if
+        the property is missing. A value of 0 will interrupt on every OC alarm.
+      - nvidia,polarity-active-low: Configures the polarity of the OC alaram
+        signal. If present, this means assert low, otherwise assert high.
+      - nvidia,alarm-filter: Number of clocks to filter event. When the filter
+        expires (which means the OC event has not occurred for a long time),
+        the counter is cleared and filter is rearmed. Default value is 0.
+      - nvidia,throttle-period-us: Specifies the number of uSec for which
+        throttling is engaged after the OC event is deasserted. Default value
+        is 0.
+
+Optional properties:
+- nvidia,thermtrips : When present, this property specifies the temperature at
+  which the soctherm hardware will assert the thermal trigger signal to the
+  Power Management IC, which can be configured to reset or shutdown the device.
+  It is an array of pairs where each pair represents a tsensor id followed by a
+  temperature in milli Celcius. In the absence of this property the critical
+  trip point will be used for thermtrip temperature.
+
 Note:
-- the "critical" type trip points will be set to SOC_THERM hardware as the
-shut down temperature. Once the temperature of this thermal zone is higher
-than it, the system will be shutdown or reset by hardware.
+- the "critical" type trip points will be used to set the temperature at which
+the SOC_THERM hardware will assert a thermal trigger if the "nvidia,thermtrips"
+property is missing. When the thermtrips property is present, the breach of a
+critical trip point is reported back to the thermal framework to implement
+software shutdown.
+
 - the "hot" type trip points will be set to SOC_THERM hardware as the throttle
 temperature. Once the the temperature of this thermal zone is higher
 than it, it will trigger the HW throttle event.
@@ -79,25 +113,32 @@ Example :
 
 		#thermal-sensor-cells = <1>;
 
+		nvidia,thermtrips = <TEGRA124_SOCTHERM_SENSOR_CPU 102500
+				     TEGRA124_SOCTHERM_SENSOR_GPU 103000>;
+
 		throttle-cfgs {
 			/*
 			 * When the "heavy" cooling device triggered,
-			 * the HW will skip cpu clock's pulse in 85% depth
+			 * the HW will skip cpu clock's pulse in 85% depth,
+			 * skip gpu clock's pulse in 85% level
 			 */
 			throttle_heavy: heavy {
 				nvidia,priority = <100>;
 				nvidia,cpu-throt-percent = <85>;
+				nvidia,gpu-throt-level = <TEGRA_SOCTHERM_THROT_LEVEL_HIGH>;
 
 				#cooling-cells = <1>;
 			};
 
 			/*
 			 * When the "light" cooling device triggered,
-			 * the HW will skip cpu clock's pulse in 50% depth
+			 * the HW will skip cpu clock's pulse in 50% depth,
+			 * skip gpu clock's pulse in 50% level
 			 */
 			throttle_light: light {
 				nvidia,priority = <80>;
 				nvidia,cpu-throt-percent = <50>;
+				nvidia,gpu-throt-level = <TEGRA_SOCTHERM_THROT_LEVEL_LOW>;
 
 				#cooling-cells = <1>;
 			};
@@ -107,6 +148,17 @@ Example :
 			 * arbiter will select the highest priority as the final throttle
 			 * settings to skip cpu pulse.
 			 */
+
+			throttle_oc1: oc1 {
+				nvidia,priority = <50>;
+				nvidia,polarity-active-low;
+				nvidia,count-threshold = <100>;
+				nvidia,alarm-filter = <5100000>;
+				nvidia,throttle-period-us = <0>;
+				nvidia,cpu-throt-percent = <75>;
+				nvidia,gpu-throt-level =
+						<TEGRA_SOCTHERM_THROT_LEVEL_MED>;
+                        };
 		};
 	};
 

Documentation/devicetree/bindings/thermal/qcom-tsens.txt

@@ -6,11 +6,14 @@ Required properties:
     - "qcom,msm8916-tsens" (MSM8916)
     - "qcom,msm8974-tsens" (MSM8974)
     - "qcom,msm8996-tsens" (MSM8996)
+    - "qcom,qcs404-tsens", "qcom,tsens-v1" (QCS404)
     - "qcom,msm8998-tsens", "qcom,tsens-v2" (MSM8998)
     - "qcom,sdm845-tsens", "qcom,tsens-v2" (SDM845)
   The generic "qcom,tsens-v2" property must be used as a fallback for any SoC
   with version 2 of the TSENS IP. MSM8996 is the only exception because the
   generic property did not exist when support was added.
+  Similarly, the generic "qcom,tsens-v1" property must be used as a fallback for
+  any SoC with version 1 of the TSENS IP.
 
 - reg: Address range of the thermal registers.
   New platforms containing v2.x.y of the TSENS IP must specify the SROT and TM
@@ -39,3 +42,14 @@ tsens0: thermal-sensor@c263000 {
 		#qcom,sensors = <13>;
 		#thermal-sensor-cells = <1>;
 	};
+
+Example 3 (for any platform containing v1 of the TSENS IP):
+tsens: thermal-sensor@4a9000 {
+		compatible = "qcom,qcs404-tsens", "qcom,tsens-v1";
+		reg = <0x004a9000 0x1000>, /* TM */
+		      <0x004a8000 0x1000>; /* SROT */
+		nvmem-cells = <&tsens_caldata>;
+		nvmem-cell-names = "calib";
+		#qcom,sensors = <10>;
+		#thermal-sensor-cells = <1>;
+	};

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

@@ -2,6 +2,7 @@
 
 Required properties:
 - compatible : should be "rockchip,<name>-tsadc"
+   "rockchip,px30-tsadc":   found on PX30 SoCs
    "rockchip,rv1108-tsadc": found on RV1108 SoCs
    "rockchip,rk3228-tsadc": found on RK3228 SoCs
    "rockchip,rk3288-tsadc": found on RK3288 SoCs

Documentation/devicetree/bindings/thermal/thermal-generic-adc.txt

@@ -8,16 +8,22 @@ temperature using voltage-temperature lookup table.
 Required properties:
 ===================
 - compatible:		     Must be "generic-adc-thermal".
+- #thermal-sensor-cells:     Should be 1. See ./thermal.txt for a description
+		             of this property.
+Optional properties:
+===================
 - temperature-lookup-table:  Two dimensional array of Integer; lookup table
 			     to map the relation between ADC value and
 			     temperature. When ADC is read, the value is
 			     looked up on the table to get the equivalent
 			     temperature.
+
 			     The first value of the each row of array is the
 			     temperature in milliCelsius and second value of
 			     the each row of array is the ADC read value.
-- #thermal-sensor-cells:     Should be 1. See ./thermal.txt for a description
-			     of this property.
+
+			     If not specified, driver assumes the ADC channel
+			     gives milliCelsius directly.
 
 Example :
 #include <dt-bindings/thermal/thermal.h>

MAINTAINERS

@@ -742,6 +742,12 @@ F:	drivers/tty/serial/altera_jtaguart.c
 F:	include/linux/altera_uart.h
 F:	include/linux/altera_jtaguart.h
 
+AMAZON ANNAPURNA LABS THERMAL MMIO DRIVER
+M:	Talel Shenhar <talel@amazon.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt
+F:	drivers/thermal/thermal_mmio.c
+
 AMAZON ETHERNET DRIVERS
 M:	Netanel Belgazal <netanel@amazon.com>
 R:	Saeed Bishara <saeedb@amazon.com>

drivers/hwmon/aspeed-pwm-tacho.c

@@ -830,10 +830,8 @@ static int aspeed_create_pwm_cooling(struct device *dev,
 	}
 	snprintf(cdev->name, MAX_CDEV_NAME_LEN, "%pOFn%d", child, pwm_port);
 
-	cdev->tcdev = thermal_of_cooling_device_register(child,
-							 cdev->name,
-							 cdev,
-							 &aspeed_pwm_cool_ops);
+	cdev->tcdev = devm_thermal_of_cooling_device_register(dev, child,
+					cdev->name, cdev, &aspeed_pwm_cool_ops);
 	if (IS_ERR(cdev->tcdev))
 		return PTR_ERR(cdev->tcdev);
 

drivers/hwmon/gpio-fan.c

@@ -498,6 +498,11 @@ static const struct of_device_id of_gpio_fan_match[] = {
 };
 MODULE_DEVICE_TABLE(of, of_gpio_fan_match);
 
+static void gpio_fan_stop(void *data)
+{
+	set_fan_speed(data, 0);
+}
+
 static int gpio_fan_probe(struct platform_device *pdev)
 {
 	int err;
@@ -532,6 +537,7 @@ static int gpio_fan_probe(struct platform_device *pdev)
 		err = fan_ctrl_init(fan_data);
 		if (err)
 			return err;
+		devm_add_action_or_reset(dev, gpio_fan_stop, fan_data);
 	}
 
 	/* Make this driver part of hwmon class. */
@@ -543,32 +549,20 @@ static int gpio_fan_probe(struct platform_device *pdev)
 		return PTR_ERR(fan_data->hwmon_dev);
 
 	/* Optional cooling device register for Device tree platforms */
-	fan_data->cdev = thermal_of_cooling_device_register(np,
-							    "gpio-fan",
-							    fan_data,
-							    &gpio_fan_cool_ops);
+	fan_data->cdev = devm_thermal_of_cooling_device_register(dev, np,
+				"gpio-fan", fan_data, &gpio_fan_cool_ops);
 
 	dev_info(dev, "GPIO fan initialized\n");
 
 	return 0;
 }
 
-static int gpio_fan_remove(struct platform_device *pdev)
+static void gpio_fan_shutdown(struct platform_device *pdev)
 {
 	struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
 
-	if (!IS_ERR(fan_data->cdev))
-		thermal_cooling_device_unregister(fan_data->cdev);
-
 	if (fan_data->gpios)
 		set_fan_speed(fan_data, 0);
-
-	return 0;
-}
-
-static void gpio_fan_shutdown(struct platform_device *pdev)
-{
-	gpio_fan_remove(pdev);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -602,7 +596,6 @@ static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume);
 
 static struct platform_driver gpio_fan_driver = {
 	.probe		= gpio_fan_probe,
-	.remove		= gpio_fan_remove,
 	.shutdown	= gpio_fan_shutdown,
 	.driver	= {
 		.name	= "gpio-fan",

drivers/hwmon/mlxreg-fan.c

@@ -465,65 +465,54 @@ static int mlxreg_fan_config(struct mlxreg_fan *fan,
 static int mlxreg_fan_probe(struct platform_device *pdev)
 {
 	struct mlxreg_core_platform_data *pdata;
+	struct device *dev = &pdev->dev;
 	struct mlxreg_fan *fan;
 	struct device *hwm;
 	int err;
 
-	pdata = dev_get_platdata(&pdev->dev);
+	pdata = dev_get_platdata(dev);
 	if (!pdata) {
-		dev_err(&pdev->dev, "Failed to get platform data.\n");
+		dev_err(dev, "Failed to get platform data.\n");
 		return -EINVAL;
 	}
 
-	fan = devm_kzalloc(&pdev->dev, sizeof(*fan), GFP_KERNEL);
+	fan = devm_kzalloc(dev, sizeof(*fan), GFP_KERNEL);
 	if (!fan)
 		return -ENOMEM;
 
-	fan->dev = &pdev->dev;
+	fan->dev = dev;
 	fan->regmap = pdata->regmap;
-	platform_set_drvdata(pdev, fan);
 
 	err = mlxreg_fan_config(fan, pdata);
 	if (err)
 		return err;
 
-	hwm = devm_hwmon_device_register_with_info(&pdev->dev, "mlxreg_fan",
+	hwm = devm_hwmon_device_register_with_info(dev, "mlxreg_fan",
 						   fan,
 						   &mlxreg_fan_hwmon_chip_info,
 						   NULL);
 	if (IS_ERR(hwm)) {
-		dev_err(&pdev->dev, "Failed to register hwmon device\n");
+		dev_err(dev, "Failed to register hwmon device\n");
 		return PTR_ERR(hwm);
 	}
 
 	if (IS_REACHABLE(CONFIG_THERMAL)) {
-		fan->cdev = thermal_cooling_device_register("mlxreg_fan", fan,
-						&mlxreg_fan_cooling_ops);
+		fan->cdev = devm_thermal_of_cooling_device_register(dev,
+			NULL, "mlxreg_fan", fan, &mlxreg_fan_cooling_ops);
 		if (IS_ERR(fan->cdev)) {
-			dev_err(&pdev->dev, "Failed to register cooling device\n");
+			dev_err(dev, "Failed to register cooling device\n");
 			return PTR_ERR(fan->cdev);
 		}
 	}
 
 	return 0;
 }
 
-static int mlxreg_fan_remove(struct platform_device *pdev)
-{
-	struct mlxreg_fan *fan = platform_get_drvdata(pdev);
-
-	if (IS_REACHABLE(CONFIG_THERMAL))
-		thermal_cooling_device_unregister(fan->cdev);
-
-	return 0;
-}
-
 static struct platform_driver mlxreg_fan_driver = {
 	.driver = {
 	    .name = "mlxreg-fan",
 	},
 	.probe = mlxreg_fan_probe,
-	.remove = mlxreg_fan_remove,
 };
 
 module_platform_driver(mlxreg_fan_driver);

drivers/hwmon/npcm750-pwm-fan.c

@@ -846,10 +846,8 @@ static int npcm7xx_create_pwm_cooling(struct device *dev,
 	snprintf(cdev->name, THERMAL_NAME_LENGTH, "%pOFn%d", child,
 		 pwm_port);
 
-	cdev->tcdev = thermal_of_cooling_device_register(child,
-							 cdev->name,
-							 cdev,
-							 &npcm7xx_pwm_cool_ops);
+	cdev->tcdev = devm_thermal_of_cooling_device_register(dev, child,
+				cdev->name, cdev, &npcm7xx_pwm_cool_ops);
 	if (IS_ERR(cdev->tcdev))
 		return PTR_ERR(cdev->tcdev);