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

Pull thermal updates from Zhang Rui:

 - fix resources release in error paths when registering thermal zone.
   (Christophe Jaillet)

 - introduce a new thermal driver for on-chip PVT (Process, Voltage and
   Temperature) monitoring unit implemented on UniPhier SoCs. This
   driver supports temperature monitoring and alert function. (Kunihiko
   Hayashi)

 - Add support for mt2712 chip in the mtk_thermal driver. (Louis Yu)

 - Add support for RK3328 SOC in rockchip_thermal driver. (Rocky Hao)

 - cleanup a couple of platform thermal drivers to constify
   thermal_zone_of_device_ops structures. (Julia Lawall)

 - a couple of fixes in int340x and intel_pch_thermal thermal driver.
   (Arvind Yadav, Sumeet Pawnikar, Brian Bian, Ed Swierk, Zhang Rui)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (27 commits)
  Thermal: int3406_thermal: fix thermal sysfs I/F
  thermal: mediatek: minor mtk_thermal.c cleanups
  thermal: mediatek: extend calibration data for mt2712 chip
  thermal: mediatek: add Mediatek thermal driver for mt2712
  dt-bindings: thermal: Add binding document for Mediatek thermal controller
  thermal: intel_pch_thermal: Fix enable check on Broadwell-DE
  thermal: rockchip: Support the RK3328 SOC in thermal driver
  dt-bindings: rockchip-thermal: Support the RK3328 SoC compatible
  thermal: bcm2835: constify thermal_zone_of_device_ops structures
  thermal: exynos: constify thermal_zone_of_device_ops structures
  thermal: zx2967: constify thermal_zone_of_device_ops structures
  thermal: rcar_gen3_thermal: constify thermal_zone_of_device_ops structures
  thermal: qoriq: constify thermal_zone_of_device_ops structures
  thermal: hisilicon: constify thermal_zone_of_device_ops structures
  thermal: core: Fix resources release in error paths in thermal_zone_device_register()
  thermal: core: Use the new 'thermal_zone_destroy_device_groups()' helper function
  thermal: core: Add some new helper functions to free resources
  thermal: int3400_thermal: process "thermal table changed" event
  thermal: uniphier: add UniPhier thermal driver
  dt-bindings: thermal: add binding documentation for UniPhier thermal monitor
  ...

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

@@ -11,6 +11,7 @@ Required properties:
 - compatible:
   - "mediatek,mt8173-thermal" : For MT8173 family of SoCs
   - "mediatek,mt2701-thermal" : For MT2701 family of SoCs
+  - "mediatek,mt2712-thermal" : For MT2712 family of SoCs
 - reg: Address range of the thermal controller
 - interrupts: IRQ for the thermal controller
 - clocks, clock-names: Clocks needed for the thermal controller. required

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

@@ -4,6 +4,7 @@ Required properties:
 - compatible : should be "rockchip,<name>-tsadc"
    "rockchip,rk3228-tsadc": found on RK3228 SoCs
    "rockchip,rk3288-tsadc": found on RK3288 SoCs
+   "rockchip,rk3328-tsadc": found on RK3328 SoCs
    "rockchip,rk3368-tsadc": found on RK3368 SoCs
    "rockchip,rk3399-tsadc": found on RK3399 SoCs
 - reg : physical base address of the controller and length of memory mapped

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

+* UniPhier Thermal bindings
+
+This describes the devicetree bindings for thermal monitor supported by
+PVT(Process, Voltage and Temperature) monitoring unit implemented on Socionext
+UniPhier SoCs.
+
+Required properties:
+- compatible :
+  - "socionext,uniphier-pxs2-thermal" : For UniPhier PXs2 SoC
+  - "socionext,uniphier-ld20-thermal" : For UniPhier LD20 SoC
+- interrupts : IRQ for the temperature alarm
+- #thermal-sensor-cells : Should be 0. See ./thermal.txt for details.
+
+Optional properties:
+- socionext,tmod-calibration: A pair of calibrated values referred from PVT,
+                              in case that the values aren't set on SoC,
+                              like a reference board.
+
+Example:
+
+	sysctrl@61840000 {
+		compatible = "socionext,uniphier-ld20-sysctrl",
+			     "simple-mfd", "syscon";
+		reg = <0x61840000 0x10000>;
+		...
+		pvtctl: pvtctl {
+			compatible = "socionext,uniphier-ld20-thermal";
+			interrupts = <0 3 1>;
+			#thermal-sensor-cells = <0>;
+		};
+		...
+	};
+
+	thermal-zones {
+		cpu_thermal {
+			polling-delay-passive = <250>;	/* 250ms */
+			polling-delay = <1000>;		/* 1000ms */
+			thermal-sensors = <&pvtctl>;
+
+			trips {
+				cpu_crit: cpu_crit {
+					temperature = <110000>;	/* 110C */
+					hysteresis = <2000>;
+					type = "critical";
+				};
+				cpu_alert: cpu_alert {
+					temperature = <100000>;	/* 100C */
+					hysteresis = <2000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert>;
+					cooling-device = <&cpu0 (-1) (-1)>;
+				};
+				map1 {
+					trip = <&cpu_alert>;
+					cooling-device = <&cpu2 (-1) (-1)>;
+				};
+			};
+		};
+	};

drivers/thermal/Kconfig

@@ -342,7 +342,7 @@ config X86_PKG_TEMP_THERMAL
 
 config INTEL_SOC_DTS_IOSF_CORE
 	tristate
-	depends on X86
+	depends on X86 && PCI
 	select IOSF_MBI
 	help
 	  This is becoming a common feature for Intel SoCs to expose the additional
@@ -352,7 +352,7 @@ config INTEL_SOC_DTS_IOSF_CORE
 
 config INTEL_SOC_DTS_THERMAL
 	tristate "Intel SoCs DTS thermal driver"
-	depends on X86
+	depends on X86 && PCI
 	select INTEL_SOC_DTS_IOSF_CORE
 	select THERMAL_WRITABLE_TRIPS
 	help
@@ -473,4 +473,12 @@ config ZX2967_THERMAL
 	  the primitive temperature sensor embedded in zx2967 SoCs.
 	  This sensor generates the real time die temperature.
 
+config UNIPHIER_THERMAL
+	tristate "Socionext UniPhier thermal driver"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on THERMAL_OF && MFD_SYSCON
+	help
+	  Enable this to plug in UniPhier on-chip PVT thermal driver into the
+	  thermal framework. The driver supports CPU thermal zone temperature
+	  reporting and a couple of trip points.
 endif

drivers/thermal/Makefile

@@ -59,3 +59,4 @@ obj-$(CONFIG_HISI_THERMAL)     += hisi_thermal.o
 obj-$(CONFIG_MTK_THERMAL)	+= mtk_thermal.o
 obj-$(CONFIG_GENERIC_ADC_THERMAL)	+= thermal-generic-adc.o
 obj-$(CONFIG_ZX2967_THERMAL)	+= zx2967_thermal.o
+obj-$(CONFIG_UNIPHIER_THERMAL)	+= uniphier_thermal.o

drivers/thermal/broadcom/bcm2835_thermal.c

@@ -145,7 +145,7 @@ static void bcm2835_thermal_debugfs(struct platform_device *pdev)
 	debugfs_create_regset32("regset", 0444, data->debugfsdir, regset);
 }
 
-static struct thermal_zone_of_device_ops bcm2835_thermal_ops = {
+static const struct thermal_zone_of_device_ops bcm2835_thermal_ops = {
 	.get_temp = bcm2835_thermal_get_temp,
 };
 

drivers/thermal/hisi_thermal.c

@@ -206,7 +206,7 @@ static int hisi_thermal_get_temp(void *_sensor, int *temp)
 	return 0;
 }
 
-static struct thermal_zone_of_device_ops hisi_of_thermal_ops = {
+static const struct thermal_zone_of_device_ops hisi_of_thermal_ops = {
 	.get_temp = hisi_thermal_get_temp,
 };
 

drivers/thermal/int340x_thermal/acpi_thermal_rel.c

@@ -228,7 +228,7 @@ static void get_single_name(acpi_handle handle, char *name)
 	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER};
 
 	if (ACPI_FAILURE(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)))
-		pr_warn("Failed get name from handle\n");
+		pr_warn("Failed to get device name from acpi handle\n");
 	else {
 		memcpy(name, buffer.pointer, ACPI_NAME_SIZE);
 		kfree(buffer.pointer);

drivers/thermal/int340x_thermal/acpi_thermal_rel.h

@@ -34,10 +34,10 @@ struct trt {
 	acpi_handle target;
 	u64 influence;
 	u64 sample_period;
-	u64 reverved1;
-	u64 reverved2;
-	u64 reverved3;
-	u64 reverved4;
+	u64 reserved1;
+	u64 reserved2;
+	u64 reserved3;
+	u64 reserved4;
 } __packed;
 
 #define ACPI_NR_ART_ELEMENTS 13

drivers/thermal/int340x_thermal/int3400_thermal.c

@@ -16,6 +16,8 @@
 #include <linux/thermal.h>
 #include "acpi_thermal_rel.h"
 
+#define INT3400_THERMAL_TABLE_CHANGED 0x83
+
 enum int3400_thermal_uuid {
 	INT3400_THERMAL_PASSIVE_1,
 	INT3400_THERMAL_ACTIVE,
@@ -104,7 +106,7 @@ static struct attribute *uuid_attrs[] = {
 	NULL
 };
 
-static struct attribute_group uuid_attribute_group = {
+static const struct attribute_group uuid_attribute_group = {
 	.attrs = uuid_attrs,
 	.name = "uuids"
 };
@@ -185,6 +187,35 @@ static int int3400_thermal_run_osc(acpi_handle handle,
 	return result;
 }
 
+static void int3400_notify(acpi_handle handle,
+			u32 event,
+			void *data)
+{
+	struct int3400_thermal_priv *priv = data;
+	char *thermal_prop[5];
+
+	if (!priv)
+		return;
+
+	switch (event) {
+	case INT3400_THERMAL_TABLE_CHANGED:
+		thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s",
+				priv->thermal->type);
+		thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d",
+				priv->thermal->temperature);
+		thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=");
+		thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d",
+				THERMAL_TABLE_CHANGED);
+		thermal_prop[4] = NULL;
+		kobject_uevent_env(&priv->thermal->device.kobj, KOBJ_CHANGE,
+				thermal_prop);
+		break;
+	default:
+		dev_err(&priv->adev->dev, "Unsupported event [0x%x]\n", event);
+		break;
+	}
+}
+
 static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
 			int *temp)
 {
@@ -290,6 +321,12 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 	if (result)
 		goto free_zone;
 
+	result = acpi_install_notify_handler(
+			priv->adev->handle, ACPI_DEVICE_NOTIFY, int3400_notify,
+			(void *)priv);
+	if (result)
+		goto free_zone;
+
 	return 0;
 
 free_zone:
@@ -306,6 +343,10 @@ static int int3400_thermal_remove(struct platform_device *pdev)
 {
 	struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
 
+	acpi_remove_notify_handler(
+			priv->adev->handle, ACPI_DEVICE_NOTIFY,
+			int3400_notify);
+
 	if (!priv->rel_misc_dev_res)
 		acpi_thermal_rel_misc_device_remove(priv->adev->handle);
 

drivers/thermal/int340x_thermal/int3406_thermal.c

@@ -21,39 +21,33 @@
 
 struct int3406_thermal_data {
 	int upper_limit;
-	int upper_limit_index;
 	int lower_limit;
-	int lower_limit_index;
 	acpi_handle handle;
 	struct acpi_video_device_brightness *br;
 	struct backlight_device *raw_bd;
 	struct thermal_cooling_device *cooling_dev;
 };
 
-static int int3406_thermal_to_raw(int level, struct int3406_thermal_data *d)
-{
-	int max_level = d->br->levels[d->br->count - 1];
-	int raw_max = d->raw_bd->props.max_brightness;
-
-	return level * raw_max / max_level;
-}
-
-static int int3406_thermal_to_acpi(int level, struct int3406_thermal_data *d)
-{
-	int raw_max = d->raw_bd->props.max_brightness;
-	int max_level = d->br->levels[d->br->count - 1];
-
-	return level * max_level / raw_max;
-}
+/*
+ * According to the ACPI spec,
+ * "Each brightness level is represented by a number between 0 and 100,
+ * and can be thought of as a percentage. For example, 50 can be 50%
+ * power consumption or 50% brightness, as defined by the OEM."
+ *
+ * As int3406 device uses this value to communicate with the native
+ * graphics driver, we make the assumption that it represents
+ * the percentage of brightness only
+ */
+#define ACPI_TO_RAW(v, d) (d->raw_bd->props.max_brightness * v / 100)
+#define RAW_TO_ACPI(v, d) (v * 100 / d->raw_bd->props.max_brightness)
 
 static int
 int3406_thermal_get_max_state(struct thermal_cooling_device *cooling_dev,
 			      unsigned long *state)
 {
 	struct int3406_thermal_data *d = cooling_dev->devdata;
-	int index = d->lower_limit_index ? d->lower_limit_index : 2;
 
-	*state = d->br->count - 1 - index;
+	*state = d->upper_limit - d->lower_limit;
 	return 0;
 }
 
@@ -62,19 +56,15 @@ int3406_thermal_set_cur_state(struct thermal_cooling_device *cooling_dev,
 			      unsigned long state)
 {
 	struct int3406_thermal_data *d = cooling_dev->devdata;
-	int level, raw_level;
+	int acpi_level, raw_level;
 
-	if (state > d->br->count - 3)
+	if (state > d->upper_limit - d->lower_limit)
 		return -EINVAL;
 
-	state = d->br->count - 1 - state;
-	level = d->br->levels[state];
+	acpi_level = d->br->levels[d->upper_limit - state];
 
-	if ((d->upper_limit && level > d->upper_limit) ||
-	    (d->lower_limit && level < d->lower_limit))
-		return -EINVAL;
+	raw_level = ACPI_TO_RAW(acpi_level, d);
 
-	raw_level = int3406_thermal_to_raw(level, d);
 	return backlight_device_set_brightness(d->raw_bd, raw_level);
 }
 
@@ -83,27 +73,22 @@ int3406_thermal_get_cur_state(struct thermal_cooling_device *cooling_dev,
 			      unsigned long *state)
 {
 	struct int3406_thermal_data *d = cooling_dev->devdata;
-	int raw_level, level, i;
-	int *levels = d->br->levels;
+	int acpi_level;
+	int index;
 
-	raw_level = d->raw_bd->props.brightness;
-	level = int3406_thermal_to_acpi(raw_level, d);
+	acpi_level = RAW_TO_ACPI(d->raw_bd->props.brightness, d);
 
 	/*
-	 * There is no 1:1 mapping between the firmware interface level with the
-	 * raw interface level, we will have to find one that is close enough.
+	 * There is no 1:1 mapping between the firmware interface level
+	 * with the raw interface level, we will have to find one that is
+	 * right above it.
 	 */
-	for (i = 2; i < d->br->count; i++) {
-		if (level < levels[i]) {
-			if (i == 2)
-				break;
-			if ((level - levels[i - 1]) < (levels[i] - level))
-				i--;
+	for (index = d->lower_limit; index < d->upper_limit; index++) {
+		if (acpi_level <= d->br->levels[index])
 			break;
-		}
 	}
 
-	*state = d->br->count - 1 - i;
+	*state = d->upper_limit - index;
 	return 0;
 }
 
@@ -117,7 +102,7 @@ static int int3406_thermal_get_index(int *array, int nr, int value)
 {
 	int i;
 
-	for (i = 0; i < nr; i++) {
+	for (i = 2; i < nr; i++) {
 		if (array[i] == value)
 			break;
 	}
@@ -128,27 +113,20 @@ static void int3406_thermal_get_limit(struct int3406_thermal_data *d)
 {
 	acpi_status status;
 	unsigned long long lower_limit, upper_limit;
-	int index;
 
 	status = acpi_evaluate_integer(d->handle, "DDDL", NULL, &lower_limit);
-	if (ACPI_SUCCESS(status)) {
-		index = int3406_thermal_get_index(d->br->levels, d->br->count,
-						  lower_limit);
-		if (index > 0) {
-			d->lower_limit = (int)lower_limit;
-			d->lower_limit_index = index;
-		}
-	}
+	if (ACPI_SUCCESS(status))
+		d->lower_limit = int3406_thermal_get_index(d->br->levels,
+					d->br->count, lower_limit);
 
 	status = acpi_evaluate_integer(d->handle, "DDPC", NULL, &upper_limit);
-	if (ACPI_SUCCESS(status)) {
-		index = int3406_thermal_get_index(d->br->levels, d->br->count,
-						  upper_limit);
-		if (index > 0) {
-			d->upper_limit = (int)upper_limit;
-			d->upper_limit_index = index;
-		}
-	}
+	if (ACPI_SUCCESS(status))
+		d->upper_limit = int3406_thermal_get_index(d->br->levels,
+					d->br->count, upper_limit);
+
+	/* lower_limit and upper_limit should be always set */
+	d->lower_limit = d->lower_limit > 0 ? d->lower_limit : 2;
+	d->upper_limit = d->upper_limit > 0 ? d->upper_limit : d->br->count - 1;
 }
 
 static void int3406_notify(acpi_handle handle, u32 event, void *data)

drivers/thermal/int340x_thermal/processor_thermal_device.c

@@ -127,7 +127,7 @@ static struct attribute *power_limit_attrs[] = {
 	NULL
 };
 
-static struct attribute_group power_limit_attribute_group = {
+static const struct attribute_group power_limit_attribute_group = {
 	.attrs = power_limit_attrs,
 	.name = "power_limits"
 };

drivers/thermal/intel_pch_thermal.c

@@ -49,7 +49,7 @@
 #define WPT_TSGPEN	0x84	/* General Purpose Event Enables */
 
 /*  Wildcat Point-LP  PCH Thermal Register bit definitions */
-#define WPT_TEMP_TSR	0x00ff	/* Temp TS Reading */
+#define WPT_TEMP_TSR	0x01ff	/* Temp TS Reading */
 #define WPT_TSC_CPDE	0x01	/* Catastrophic Power-Down Enable */
 #define WPT_TSS_TSDSS	0x10	/* Thermal Sensor Dynamic Shutdown Status */
 #define WPT_TSS_GPES	0x08	/* GPE status */
@@ -125,7 +125,7 @@ static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips)
 	*nr_trips = 0;
 
 	/* Check if BIOS has already enabled thermal sensor */
-	if (WPT_TSS_TSDSS & readb(ptd->hw_base + WPT_TSS)) {
+	if (WPT_TSEL_ETS & readb(ptd->hw_base + WPT_TSEL)) {
 		ptd->bios_enabled = true;
 		goto read_trips;
 	}
@@ -141,7 +141,7 @@ static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips)
 	}
 
 	writeb(tsel|WPT_TSEL_ETS, ptd->hw_base + WPT_TSEL);
-	if (!(WPT_TSS_TSDSS & readb(ptd->hw_base + WPT_TSS))) {
+	if (!(WPT_TSEL_ETS & readb(ptd->hw_base + WPT_TSEL))) {
 		dev_err(&ptd->pdev->dev, "Sensor can't be enabled\n");
 		return -ENODEV;
 	}
@@ -174,9 +174,9 @@ static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips)
 
 static int pch_wpt_get_temp(struct pch_thermal_device *ptd, int *temp)
 {
-	u8 wpt_temp;
+	u16 wpt_temp;
 
-	wpt_temp = WPT_TEMP_TSR & readl(ptd->hw_base + WPT_TEMP);
+	wpt_temp = WPT_TEMP_TSR & readw(ptd->hw_base + WPT_TEMP);
 
 	/* Resolution of 1/2 degree C and an offset of -50C */
 	*temp = (wpt_temp * 1000 / 2 - 50000);
@@ -387,7 +387,7 @@ static int intel_pch_thermal_resume(struct device *device)
 	return ptd->ops->resume(ptd);
 }
 
-static struct pci_device_id intel_pch_thermal_id[] = {
+static const struct pci_device_id intel_pch_thermal_id[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_HSW_1),
 		.driver_data = board_hsw, },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_HSW_2),

drivers/thermal/mtk_thermal.c

@@ -3,6 +3,7 @@
  * Author: Hanyi Wu <hanyi.wu@mediatek.com>
  *         Sascha Hauer <s.hauer@pengutronix.de>
  *         Dawei Chien <dawei.chien@mediatek.com>
+ *         Louis Yu <louis.yu@mediatek.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -111,9 +112,10 @@
 
 /*
  * Layout of the fuses providing the calibration data
- * These macros could be used for both MT8173 and MT2701.
- * MT8173 has five sensors and need five VTS calibration data,
- * and MT2701 has three sensors and need three VTS calibration data.
+ * These macros could be used for MT8173, MT2701, and MT2712.
+ * MT8173 has 5 sensors and needs 5 VTS calibration data.
+ * MT2701 has 3 sensors and needs 3 VTS calibration data.
+ * MT2712 has 4 sensors and needs 4 VTS calibration data.
  */
 #define MT8173_CALIB_BUF0_VALID		BIT(0)
 #define MT8173_CALIB_BUF1_ADC_GE(x)	(((x) >> 22) & 0x3ff)
@@ -124,6 +126,8 @@
 #define MT8173_CALIB_BUF2_VTS_TSABB(x)	(((x) >> 14) & 0x1ff)
 #define MT8173_CALIB_BUF0_DEGC_CALI(x)	(((x) >> 1) & 0x3f)
 #define MT8173_CALIB_BUF0_O_SLOPE(x)	(((x) >> 26) & 0x3f)
+#define MT8173_CALIB_BUF0_O_SLOPE_SIGN(x)	(((x) >> 7) & 0x1)
+#define MT8173_CALIB_BUF1_ID(x)	(((x) >> 9) & 0x1)
 
 /* MT2701 thermal sensors */
 #define MT2701_TS1	0
@@ -136,11 +140,26 @@
 /* The total number of temperature sensors in the MT2701 */
 #define MT2701_NUM_SENSORS	3
 
-#define THERMAL_NAME    "mtk-thermal"
-
 /* The number of sensing points per bank */
 #define MT2701_NUM_SENSORS_PER_ZONE	3
 
+/* MT2712 thermal sensors */
+#define MT2712_TS1	0
+#define MT2712_TS2	1
+#define MT2712_TS3	2
+#define MT2712_TS4	3
+
+/* AUXADC channel 11 is used for the temperature sensors */
+#define MT2712_TEMP_AUXADC_CHANNEL	11
+
+/* The total number of temperature sensors in the MT2712 */
+#define MT2712_NUM_SENSORS	4
+
+/* The number of sensing points per bank */
+#define MT2712_NUM_SENSORS_PER_ZONE	4
+
+#define THERMAL_NAME    "mtk-thermal"
+
 struct mtk_thermal;
 
 struct thermal_bank_cfg {
@@ -215,6 +234,21 @@ static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = {
 
 static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 };
 
+/* MT2712 thermal sensor data */
+static const int mt2712_bank_data[MT2712_NUM_SENSORS] = {
+	MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4
+};
+
+static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = {
+	TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3
+};
+
+static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = {
+	TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3
+};
+
+static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 };
+
 /**
  * The MT8173 thermal controller has four banks. Each bank can read up to
  * four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -277,6 +311,31 @@ static const struct mtk_thermal_data mt2701_thermal_data = {
 	.sensor_mux_values = mt2701_mux_values,
 };
 
+/**
+ * The MT2712 thermal controller has one bank, which can read up to
+ * four temperature sensors simultaneously. The MT2712 has a total of 4
+ * temperature sensors.
+ *
+ * The thermal core only gets the maximum temperature of this one bank,
+ * so the bank concept wouldn't be necessary here. However, the SVS (Smart
+ * Voltage Scaling) unit makes its decisions based on the same bank
+ * data.
+ */
+static const struct mtk_thermal_data mt2712_thermal_data = {
+	.auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL,
+	.num_banks = 1,
+	.num_sensors = MT2712_NUM_SENSORS,
+	.bank_data = {
+		{
+			.num_sensors = 4,
+			.sensors = mt2712_bank_data,
+		},
+	},
+	.msr = mt2712_msr,
+	.adcpnp = mt2712_adcpnp,
+	.sensor_mux_values = mt2712_mux_values,
+};
+
 /**
  * raw_to_mcelsius - convert a raw ADC value to mcelsius
  * @mt:		The thermal controller
@@ -552,7 +611,11 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
 		mt->vts[MT8173_TS4] = MT8173_CALIB_BUF2_VTS_TS4(buf[2]);
 		mt->vts[MT8173_TSABB] = MT8173_CALIB_BUF2_VTS_TSABB(buf[2]);
 		mt->degc_cali = MT8173_CALIB_BUF0_DEGC_CALI(buf[0]);
-		mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
+		if (MT8173_CALIB_BUF1_ID(buf[1]) &
+		    MT8173_CALIB_BUF0_O_SLOPE_SIGN(buf[0]))
+			mt->o_slope = -MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
+		else
+			mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
 	} else {
 		dev_info(dev, "Device not calibrated, using default calibration values\n");
 	}
@@ -571,6 +634,10 @@ static const struct of_device_id mtk_thermal_of_match[] = {
 	{
 		.compatible = "mediatek,mt2701-thermal",
 		.data = (void *)&mt2701_thermal_data,
+	},
+	{
+		.compatible = "mediatek,mt2712-thermal",
+		.data = (void *)&mt2712_thermal_data,
 	}, {
 	},
 };
@@ -645,16 +712,16 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
+	ret = device_reset(&pdev->dev);
+	if (ret)
+		return ret;
+
 	ret = clk_prepare_enable(mt->clk_auxadc);
 	if (ret) {
 		dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret);
 		return ret;
 	}
 
-	ret = device_reset(&pdev->dev);
-	if (ret)
-		goto err_disable_clk_auxadc;
-
 	ret = clk_prepare_enable(mt->clk_peri_therm);
 	if (ret) {
 		dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret);
@@ -705,6 +772,7 @@ static struct platform_driver mtk_thermal_driver = {
 
 module_platform_driver(mtk_thermal_driver);
 
+MODULE_AUTHOR("Louis Yu <louis.yu@mediatek.com>");
 MODULE_AUTHOR("Dawei Chien <dawei.chien@mediatek.com>");
 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 MODULE_AUTHOR("Hanyi Wu <hanyi.wu@mediatek.com>");

drivers/thermal/qoriq_thermal.c

@@ -188,7 +188,7 @@ static void qoriq_tmu_init_device(struct qoriq_tmu_data *data)
 	tmu_write(data, TMR_DISABLE, &data->regs->tmr);
 }
 
-static struct thermal_zone_of_device_ops tmu_tz_ops = {
+static const struct thermal_zone_of_device_ops tmu_tz_ops = {
 	.get_temp = tmu_get_temp,
 };
 

drivers/thermal/rcar_gen3_thermal.c

@@ -225,7 +225,7 @@ static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
 	return 0;
 }
 
-static struct thermal_zone_of_device_ops rcar_gen3_tz_of_ops = {
+static const struct thermal_zone_of_device_ops rcar_gen3_tz_of_ops = {
 	.get_temp	= rcar_gen3_thermal_get_temp,
 	.set_trips	= rcar_gen3_thermal_set_trips,
 };

drivers/thermal/rockchip_thermal.c

@@ -320,6 +320,44 @@ static const struct tsadc_table rk3288_code_table[] = {
 	{0, 125000},
 };
 
+static const struct tsadc_table rk3328_code_table[] = {
+	{0, -40000},
+	{296, -40000},
+	{304, -35000},
+	{313, -30000},
+	{331, -20000},
+	{340, -15000},
+	{349, -10000},
+	{359, -5000},
+	{368, 0},
+	{378, 5000},
+	{388, 10000},
+	{398, 15000},
+	{408, 20000},
+	{418, 25000},
+	{429, 30000},
+	{440, 35000},
+	{451, 40000},
+	{462, 45000},
+	{473, 50000},
+	{485, 55000},
+	{496, 60000},
+	{508, 65000},
+	{521, 70000},
+	{533, 75000},
+	{546, 80000},
+	{559, 85000},
+	{572, 90000},
+	{586, 95000},
+	{600, 100000},
+	{614, 105000},
+	{629, 110000},
+	{644, 115000},
+	{659, 120000},
+	{675, 125000},
+	{TSADCV2_DATA_MASK, 125000},
+};
+
 static const struct tsadc_table rk3368_code_table[] = {
 	{0, -40000},
 	{106, -40000},
@@ -790,6 +828,29 @@ static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
 	},
 };
 
+static const struct rockchip_tsadc_chip rk3328_tsadc_data = {
+	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
+	.chn_num = 1, /* one channels for tsadc */
+
+	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
+	.tshut_temp = 95000,
+
+	.initialize = rk_tsadcv2_initialize,
+	.irq_ack = rk_tsadcv3_irq_ack,
+	.control = rk_tsadcv3_control,
+	.get_temp = rk_tsadcv2_get_temp,
+	.set_alarm_temp = rk_tsadcv2_alarm_temp,
+	.set_tshut_temp = rk_tsadcv2_tshut_temp,
+	.set_tshut_mode = rk_tsadcv2_tshut_mode,
+
+	.table = {
+		.id = rk3328_code_table,
+		.length = ARRAY_SIZE(rk3328_code_table),
+		.data_mask = TSADCV2_DATA_MASK,
+		.mode = ADC_INCREMENT,
+	},
+};
+
 static const struct rockchip_tsadc_chip rk3366_tsadc_data = {
 	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
 	.chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
@@ -874,6 +935,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = {
 		.compatible = "rockchip,rk3288-tsadc",
 		.data = (void *)&rk3288_tsadc_data,
 	},
+	{
+		.compatible = "rockchip,rk3328-tsadc",
+		.data = (void *)&rk3328_tsadc_data,
+	},
 	{
 		.compatible = "rockchip,rk3366-tsadc",
 		.data = (void *)&rk3366_tsadc_data,

drivers/thermal/samsung/exynos_tmu.c

@@ -1286,7 +1286,7 @@ static int exynos_map_dt_data(struct platform_device *pdev)
 	return 0;
 }
 
-static struct thermal_zone_of_device_ops exynos_sensor_ops = {
+static const struct thermal_zone_of_device_ops exynos_sensor_ops = {
 	.get_temp = exynos_get_temp,
 	.set_emul_temp = exynos_tmu_set_emulation,
 };

drivers/thermal/thermal_core.c

@@ -390,7 +390,7 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 
 	if (trip_type == THERMAL_TRIP_CRITICAL) {
 		dev_emerg(&tz->device,
-			  "critical temperature reached(%d C),shutting down\n",
+			  "critical temperature reached (%d C), shutting down\n",
 			  tz->temperature / 1000);
 		mutex_lock(&poweroff_lock);
 		if (!power_off_triggered) {
@@ -836,11 +836,7 @@ static void thermal_release(struct device *dev)
 	if (!strncmp(dev_name(dev), "thermal_zone",
 		     sizeof("thermal_zone") - 1)) {
 		tz = to_thermal_zone(dev);
-		kfree(tz->trip_type_attrs);
-		kfree(tz->trip_temp_attrs);
-		kfree(tz->trip_hyst_attrs);
-		kfree(tz->trips_attribute_group.attrs);
-		kfree(tz->device.groups);
+		thermal_zone_destroy_device_groups(tz);
 		kfree(tz);
 	} else if (!strncmp(dev_name(dev), "cooling_device",
 			    sizeof("cooling_device") - 1)) {
@@ -1213,10 +1209,8 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 	ida_init(&tz->ida);
 	mutex_init(&tz->lock);
 	result = ida_simple_get(&thermal_tz_ida, 0, 0, GFP_KERNEL);
-	if (result < 0) {
-		kfree(tz);
-		return ERR_PTR(result);
-	}
+	if (result < 0)
+		goto free_tz;
 
 	tz->id = result;
 	strlcpy(tz->type, type, sizeof(tz->type));
@@ -1232,18 +1226,15 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 	/* Add nodes that are always present via .groups */
 	result = thermal_zone_create_device_groups(tz, mask);
 	if (result)
-		goto unregister;
+		goto remove_id;
 
 	/* A new thermal zone needs to be updated anyway. */
 	atomic_set(&tz->need_update, 1);
 
 	dev_set_name(&tz->device, "thermal_zone%d", tz->id);
 	result = device_register(&tz->device);
-	if (result) {
-		ida_simple_remove(&thermal_tz_ida, tz->id);
-		kfree(tz);
-		return ERR_PTR(result);
-	}
+	if (result)
+		goto remove_device_groups;
 
 	for (count = 0; count < trips; count++) {
 		if (tz->ops->get_trip_type(tz, count, &trip_type))
@@ -1297,6 +1288,14 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 	ida_simple_remove(&thermal_tz_ida, tz->id);
 	device_unregister(&tz->device);
 	return ERR_PTR(result);
+
+remove_device_groups:
+	thermal_zone_destroy_device_groups(tz);
+remove_id:
+	ida_simple_remove(&thermal_tz_ida, tz->id);
+free_tz:
+	kfree(tz);
+	return ERR_PTR(result);
 }
 EXPORT_SYMBOL_GPL(thermal_zone_device_register);
 

drivers/thermal/thermal_core.h

@@ -71,6 +71,7 @@ int thermal_build_list_of_policies(char *buf);
 
 /* sysfs I/F */
 int thermal_zone_create_device_groups(struct thermal_zone_device *, int);
+void thermal_zone_destroy_device_groups(struct thermal_zone_device *);
 void thermal_cooling_device_setup_sysfs(struct thermal_cooling_device *);
 /* used only at binding time */
 ssize_t

drivers/thermal/thermal_sysfs.c

@@ -605,6 +605,24 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 	return 0;
 }
 
+/**
+ * destroy_trip_attrs() - destroy attributes for trip points
+ * @tz:		the thermal zone device
+ *
+ * helper function to free resources allocated by create_trip_attrs()
+ */
+static void destroy_trip_attrs(struct thermal_zone_device *tz)
+{
+	if (!tz)
+		return;
+
+	kfree(tz->trip_type_attrs);
+	kfree(tz->trip_temp_attrs);
+	if (tz->ops->get_trip_hyst)
+		kfree(tz->trip_hyst_attrs);
+	kfree(tz->trips_attribute_group.attrs);
+}
+
 int thermal_zone_create_device_groups(struct thermal_zone_device *tz,
 				      int mask)
 {
@@ -637,6 +655,17 @@ int thermal_zone_create_device_groups(struct thermal_zone_device *tz,
 	return 0;
 }
 
+void thermal_zone_destroy_device_groups(struct thermal_zone_device *tz)
+{
+	if (!tz)
+		return;
+
+	if (tz->trips)
+		destroy_trip_attrs(tz);
+
+	kfree(tz->device.groups);
+}
+
 /* sys I/F for cooling device */
 static ssize_t
 thermal_cooling_device_type_show(struct device *dev,

drivers/thermal/uniphier_thermal.c

+/**
+ * uniphier_thermal.c - Socionext UniPhier thermal driver
+ *
+ * Copyright 2014      Panasonic Corporation
+ * Copyright 2016-2017 Socionext Inc.
+ * All rights reserved.
+ *
+ * Author:
+ *	Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2  of
+ * the License as published by the Free Software Foundation.
+ *
+ * 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/interrupt.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/thermal.h>
+
+#include "thermal_core.h"
+
+/*
+ * block registers
+ * addresses are the offset from .block_base
+ */
+#define PVTCTLEN			0x0000
+#define PVTCTLEN_EN			BIT(0)
+
+#define PVTCTLMODE			0x0004
+#define PVTCTLMODE_MASK			0xf
+#define PVTCTLMODE_TEMPMON		0x5
+
+#define EMONREPEAT			0x0040
+#define EMONREPEAT_ENDLESS		BIT(24)
+#define EMONREPEAT_PERIOD		GENMASK(3, 0)
+#define EMONREPEAT_PERIOD_1000000	0x9
+
+/*
+ * common registers
+ * addresses are the offset from .map_base
+ */
+#define PVTCTLSEL			0x0900
+#define PVTCTLSEL_MASK			GENMASK(2, 0)
+#define PVTCTLSEL_MONITOR		0
+
+#define SETALERT0			0x0910
+#define SETALERT1			0x0914
+#define SETALERT2			0x0918
+#define SETALERT_TEMP_OVF		(GENMASK(7, 0) << 16)
+#define SETALERT_TEMP_OVF_VALUE(val)	(((val) & GENMASK(7, 0)) << 16)
+#define SETALERT_EN			BIT(0)
+
+#define PMALERTINTCTL			0x0920
+#define PMALERTINTCTL_CLR(ch)		BIT(4 * (ch) + 2)
+#define PMALERTINTCTL_SET(ch)		BIT(4 * (ch) + 1)
+#define PMALERTINTCTL_EN(ch)		BIT(4 * (ch) + 0)
+#define PMALERTINTCTL_MASK		(GENMASK(10, 8) | GENMASK(6, 4) | \
+					 GENMASK(2, 0))
+
+#define TMOD				0x0928
+#define TMOD_WIDTH			9
+
+#define TMODCOEF			0x0e5c
+
+#define TMODSETUP0_EN			BIT(30)
+#define TMODSETUP0_VAL(val)		(((val) & GENMASK(13, 0)) << 16)
+#define TMODSETUP1_EN			BIT(15)
+#define TMODSETUP1_VAL(val)		((val) & GENMASK(14, 0))
+
+/* SoC critical temperature */
+#define CRITICAL_TEMP_LIMIT		(120 * 1000)
+
+/* Max # of alert channels */
+#define ALERT_CH_NUM			3
+
+/* SoC specific thermal sensor data */
+struct uniphier_tm_soc_data {
+	u32 map_base;
+	u32 block_base;
+	u32 tmod_setup_addr;
+};
+
+struct uniphier_tm_dev {
+	struct regmap *regmap;
+	struct device *dev;
+	bool alert_en[ALERT_CH_NUM];
+	struct thermal_zone_device *tz_dev;
+	const struct uniphier_tm_soc_data *data;
+};
+
+static int uniphier_tm_initialize_sensor(struct uniphier_tm_dev *tdev)
+{
+	struct regmap *map = tdev->regmap;
+	u32 val;
+	u32 tmod_calib[2];
+	int ret;
+
+	/* stop PVT */
+	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,
+			  PVTCTLEN_EN, 0);
+
+	/*
+	 * Since SoC has a calibrated value that was set in advance,
+	 * TMODCOEF shows non-zero and PVT refers the value internally.
+	 *
+	 * If TMODCOEF shows zero, the boards don't have the calibrated
+	 * value, and the driver has to set default value from DT.
+	 */
+	ret = regmap_read(map, tdev->data->map_base + TMODCOEF, &val);
+	if (ret)
+		return ret;
+	if (!val) {
+		/* look for the default values in DT */
+		ret = of_property_read_u32_array(tdev->dev->of_node,
+						 "socionext,tmod-calibration",
+						 tmod_calib,
+						 ARRAY_SIZE(tmod_calib));
+		if (ret)
+			return ret;
+
+		regmap_write(map, tdev->data->tmod_setup_addr,
+			TMODSETUP0_EN | TMODSETUP0_VAL(tmod_calib[0]) |
+			TMODSETUP1_EN | TMODSETUP1_VAL(tmod_calib[1]));
+	}
+
+	/* select temperature mode */
+	regmap_write_bits(map, tdev->data->block_base + PVTCTLMODE,
+			  PVTCTLMODE_MASK, PVTCTLMODE_TEMPMON);
+
+	/* set monitoring period */
+	regmap_write_bits(map, tdev->data->block_base + EMONREPEAT,
+			  EMONREPEAT_ENDLESS | EMONREPEAT_PERIOD,
+			  EMONREPEAT_ENDLESS | EMONREPEAT_PERIOD_1000000);
+
+	/* set monitor mode */
+	regmap_write_bits(map, tdev->data->map_base + PVTCTLSEL,
+			  PVTCTLSEL_MASK, PVTCTLSEL_MONITOR);
+
+	return 0;
+}
+
+static void uniphier_tm_set_alert(struct uniphier_tm_dev *tdev, u32 ch,
+				  u32 temp)
+{
+	struct regmap *map = tdev->regmap;
+
+	/* set alert temperature */
+	regmap_write_bits(map, tdev->data->map_base + SETALERT0 + (ch << 2),
+			  SETALERT_EN | SETALERT_TEMP_OVF,
+			  SETALERT_EN |
+			  SETALERT_TEMP_OVF_VALUE(temp / 1000));
+}
+
+static void uniphier_tm_enable_sensor(struct uniphier_tm_dev *tdev)
+{
+	struct regmap *map = tdev->regmap;
+	int i;
+	u32 bits = 0;
+
+	for (i = 0; i < ALERT_CH_NUM; i++)
+		if (tdev->alert_en[i])
+			bits |= PMALERTINTCTL_EN(i);
+
+	/* enable alert interrupt */
+	regmap_write_bits(map, tdev->data->map_base + PMALERTINTCTL,
+			  PMALERTINTCTL_MASK, bits);
+
+	/* start PVT */
+	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,
+			  PVTCTLEN_EN, PVTCTLEN_EN);
+
+	usleep_range(700, 1500);	/* The spec note says at least 700us */
+}
+
+static void uniphier_tm_disable_sensor(struct uniphier_tm_dev *tdev)
+{
+	struct regmap *map = tdev->regmap;
+
+	/* disable alert interrupt */
+	regmap_write_bits(map, tdev->data->map_base + PMALERTINTCTL,
+			  PMALERTINTCTL_MASK, 0);
+
+	/* stop PVT */
+	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,
+			  PVTCTLEN_EN, 0);
+
+	usleep_range(1000, 2000);	/* The spec note says at least 1ms */
+}
+
+static int uniphier_tm_get_temp(void *data, int *out_temp)
+{
+	struct uniphier_tm_dev *tdev = data;
+	struct regmap *map = tdev->regmap;
+	int ret;
+	u32 temp;
+
+	ret = regmap_read(map, tdev->data->map_base + TMOD, &temp);
+	if (ret)
+		return ret;
+
+	/* MSB of the TMOD field is a sign bit */
+	*out_temp = sign_extend32(temp, TMOD_WIDTH - 1) * 1000;
+
+	return 0;
+}
+
+static const struct thermal_zone_of_device_ops uniphier_of_thermal_ops = {
+	.get_temp = uniphier_tm_get_temp,
+};
+
+static void uniphier_tm_irq_clear(struct uniphier_tm_dev *tdev)
+{
+	u32 mask = 0, bits = 0;
+	int i;
+
+	for (i = 0; i < ALERT_CH_NUM; i++) {
+		mask |= (PMALERTINTCTL_CLR(i) | PMALERTINTCTL_SET(i));
+		bits |= PMALERTINTCTL_CLR(i);
+	}
+
+	/* clear alert interrupt */
+	regmap_write_bits(tdev->regmap,
+			  tdev->data->map_base + PMALERTINTCTL, mask, bits);
+}
+
+static irqreturn_t uniphier_tm_alarm_irq(int irq, void *_tdev)
+{
+	struct uniphier_tm_dev *tdev = _tdev;
+
+	disable_irq_nosync(irq);
+	uniphier_tm_irq_clear(tdev);
+
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t uniphier_tm_alarm_irq_thread(int irq, void *_tdev)
+{
+	struct uniphier_tm_dev *tdev = _tdev;
+
+	thermal_zone_device_update(tdev->tz_dev, THERMAL_EVENT_UNSPECIFIED);
+
+	return IRQ_HANDLED;
+}
+
+static int uniphier_tm_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct regmap *regmap;
+	struct device_node *parent;
+	struct uniphier_tm_dev *tdev;
+	const struct thermal_trip *trips;
+	int i, ret, irq, ntrips, crit_temp = INT_MAX;
+
+	tdev = devm_kzalloc(dev, sizeof(*tdev), GFP_KERNEL);
+	if (!tdev)
+		return -ENOMEM;
+	tdev->dev = dev;
+
+	tdev->data = of_device_get_match_data(dev);
+	if (WARN_ON(!tdev->data))
+		return -EINVAL;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	/* get regmap from syscon node */
+	parent = of_get_parent(dev->of_node); /* parent should be syscon node */
+	regmap = syscon_node_to_regmap(parent);
+	of_node_put(parent);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "failed to get regmap (error %ld)\n",
+			PTR_ERR(regmap));
+		return PTR_ERR(regmap);
+	}
+	tdev->regmap = regmap;
+
+	ret = uniphier_tm_initialize_sensor(tdev);
+	if (ret) {
+		dev_err(dev, "failed to initialize sensor\n");
+		return ret;
+	}
+
+	ret = devm_request_threaded_irq(dev, irq, uniphier_tm_alarm_irq,
+					uniphier_tm_alarm_irq_thread,
+					0, "thermal", tdev);
+	if (ret)
+		return ret;
+
+	platform_set_drvdata(pdev, tdev);
+
+	tdev->tz_dev = devm_thermal_zone_of_sensor_register(dev, 0, tdev,
+						&uniphier_of_thermal_ops);
+	if (IS_ERR(tdev->tz_dev)) {
+		dev_err(dev, "failed to register sensor device\n");
+		return PTR_ERR(tdev->tz_dev);
+	}
+
+	/* get trip points */
+	trips = of_thermal_get_trip_points(tdev->tz_dev);
+	ntrips = of_thermal_get_ntrips(tdev->tz_dev);
+	if (ntrips > ALERT_CH_NUM) {
+		dev_err(dev, "thermal zone has too many trips\n");
+		return -E2BIG;
+	}
+
+	/* set alert temperatures */
+	for (i = 0; i < ntrips; i++) {
+		if (trips[i].type == THERMAL_TRIP_CRITICAL &&
+		    trips[i].temperature < crit_temp)
+			crit_temp = trips[i].temperature;
+		uniphier_tm_set_alert(tdev, i, trips[i].temperature);
+		tdev->alert_en[i] = true;
+	}
+	if (crit_temp > CRITICAL_TEMP_LIMIT) {
+		dev_err(dev, "critical trip is over limit(>%d), or not set\n",
+			CRITICAL_TEMP_LIMIT);
+		return -EINVAL;
+	}
+
+	uniphier_tm_enable_sensor(tdev);
+
+	return 0;
+}
+
+static int uniphier_tm_remove(struct platform_device *pdev)
+{
+	struct uniphier_tm_dev *tdev = platform_get_drvdata(pdev);
+
+	/* disable sensor */
+	uniphier_tm_disable_sensor(tdev);
+
+	return 0;
+}
+
+static const struct uniphier_tm_soc_data uniphier_pxs2_tm_data = {
+	.map_base        = 0xe000,
+	.block_base      = 0xe000,
+	.tmod_setup_addr = 0xe904,
+};
+
+static const struct uniphier_tm_soc_data uniphier_ld20_tm_data = {
+	.map_base        = 0xe000,
+	.block_base      = 0xe800,
+	.tmod_setup_addr = 0xe938,
+};
+
+static const struct of_device_id uniphier_tm_dt_ids[] = {
+	{
+		.compatible = "socionext,uniphier-pxs2-thermal",
+		.data       = &uniphier_pxs2_tm_data,
+	},
+	{
+		.compatible = "socionext,uniphier-ld20-thermal",
+		.data       = &uniphier_ld20_tm_data,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, uniphier_tm_dt_ids);
+
+static struct platform_driver uniphier_tm_driver = {
+	.probe = uniphier_tm_probe,
+	.remove = uniphier_tm_remove,
+	.driver = {
+		.name = "uniphier-thermal",
+		.of_match_table = uniphier_tm_dt_ids,
+	},
+};
+module_platform_driver(uniphier_tm_driver);
+
+MODULE_AUTHOR("Kunihiko Hayashi <hayashi.kunihiko@socionext.com>");
+MODULE_DESCRIPTION("UniPhier thermal driver");
+MODULE_LICENSE("GPL v2");

drivers/thermal/zx2967_thermal.c

@@ -111,7 +111,7 @@ static int zx2967_thermal_get_temp(void *data, int *temp)
 	return ret;
 }
 
-static struct thermal_zone_of_device_ops zx2967_of_thermal_ops = {
+static const struct thermal_zone_of_device_ops zx2967_of_thermal_ops = {
 	.get_temp = zx2967_thermal_get_temp,
 };
 

include/linux/thermal.h

@@ -102,6 +102,7 @@ enum thermal_notify_event {
 	THERMAL_DEVICE_DOWN, /* Thermal device is down */
 	THERMAL_DEVICE_UP, /* Thermal device is up after a down event */
 	THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */
+	THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */
 };
 
 struct thermal_zone_device_ops {