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

Pull thermal management updates from Zhang Rui:

 - Fix a problem where orderly_shutdown() is called for multiple times
   due to multiple critical overheating events raised in a short period
   by platform thermal driver. (Keerthy)

 - Introduce a backup thermal shutdown mechanism, which invokes
   kernel_power_off()/emergency_restart() directly, after
   orderly_shutdown() being issued for certain amount of time(specified
   via Kconfig). This is useful in certain conditions that userspace may
   be unable to power off the system in a clean manner and leaves the
   system in a critical state, like in the middle of driver probing
   phase. (Keerthy)

 - Introduce a new interface in thermal devfreq_cooling code so that the
   driver can provide more precise data regarding actual power to the
   thermal governor every time the power budget is calculated. (Lukasz
   Luba)

 - Introduce BCM 2835 soc thermal driver and northstar thermal driver,
   within a new sub-folder. (Rafał Miłecki)

 - Introduce DA9062/61 thermal driver. (Steve Twiss)

 - Remove non-DT booting on TI-SoC driver. Also add support to fetching
   coefficients from DT. (Keerthy)

 - Refactorf RCAR Gen3 thermal driver. (Niklas Söderlund)

 - Small fix on MTK and intel-soc-dts thermal driver. (Dawei Chien,
   Brian Bian)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
  thermal: core: Add a back up thermal shutdown mechanism
  thermal: core: Allow orderly_poweroff to be called only once
  Thermal: Intel SoC DTS: Change interrupt request behavior
  trace: thermal: add another parameter 'power' to the tracing function
  thermal: devfreq_cooling: add new interface for direct power read
  thermal: devfreq_cooling: refactor code and add get_voltage function
  thermal: mt8173: minor mtk_thermal.c cleanups
  thermal: bcm2835: move to the broadcom subdirectory
  thermal: broadcom: ns: specify myself as MODULE_AUTHOR
  thermal: da9062/61: Thermal junction temperature monitoring driver
  Documentation: devicetree: thermal: da9062/61 TJUNC temperature binding
  thermal: broadcom: add Northstar thermal driver
  dt-bindings: thermal: add support for Broadcom's Northstar thermal
  thermal: bcm2835: add thermal driver for bcm2835 SoC
  dt-bindings: Add thermal zone to bcm2835-thermal example
  thermal: rcar_gen3_thermal: add suspend and resume support
  thermal: rcar_gen3_thermal: store device match data in private structure
  thermal: rcar_gen3_thermal: enable hardware interrupts for trip points
  thermal: rcar_gen3_thermal: record and check number of TSCs found
  thermal: rcar_gen3_thermal: check that TSC exists before memory allocation
  ...

7 files changed, 5 insertions, 197 deletions

diff --git a/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c b/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
index 118d7d847715..4167373327d9 100644
--- a/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/dra752-thermal-data.c
@@ -410,8 +410,6 @@ const struct ti_bandgap_data dra752_data = {
 		.domain = "cpu",
 		.register_cooling = ti_thermal_register_cpu_cooling,
 		.unregister_cooling = ti_thermal_unregister_cpu_cooling,
-		.slope = DRA752_GRADIENT_SLOPE,
-		.constant = DRA752_GRADIENT_CONST,
 		.slope_pcb = DRA752_GRADIENT_SLOPE_W_PCB,
 		.constant_pcb = DRA752_GRADIENT_CONST_W_PCB,
 		},
@@ -419,8 +417,6 @@ const struct ti_bandgap_data dra752_data = {
 		.registers = &dra752_gpu_temp_sensor_registers,
 		.ts_data = &dra752_gpu_temp_sensor_data,
 		.domain = "gpu",
-		.slope = DRA752_GRADIENT_SLOPE,
-		.constant = DRA752_GRADIENT_CONST,
 		.slope_pcb = DRA752_GRADIENT_SLOPE_W_PCB,
 		.constant_pcb = DRA752_GRADIENT_CONST_W_PCB,
 		},
@@ -428,8 +424,6 @@ const struct ti_bandgap_data dra752_data = {
 		.registers = &dra752_core_temp_sensor_registers,
 		.ts_data = &dra752_core_temp_sensor_data,
 		.domain = "core",
-		.slope = DRA752_GRADIENT_SLOPE,
-		.constant = DRA752_GRADIENT_CONST,
 		.slope_pcb = DRA752_GRADIENT_SLOPE_W_PCB,
 		.constant_pcb = DRA752_GRADIENT_CONST_W_PCB,
 		},
@@ -437,8 +431,6 @@ const struct ti_bandgap_data dra752_data = {
 		.registers = &dra752_dspeve_temp_sensor_registers,
 		.ts_data = &dra752_dspeve_temp_sensor_data,
 		.domain = "dspeve",
-		.slope = DRA752_GRADIENT_SLOPE,
-		.constant = DRA752_GRADIENT_CONST,
 		.slope_pcb = DRA752_GRADIENT_SLOPE_W_PCB,
 		.constant_pcb = DRA752_GRADIENT_CONST_W_PCB,
 		},
@@ -446,8 +438,6 @@ const struct ti_bandgap_data dra752_data = {
 		.registers = &dra752_iva_temp_sensor_registers,
 		.ts_data = &dra752_iva_temp_sensor_data,
 		.domain = "iva",
-		.slope = DRA752_GRADIENT_SLOPE,
-		.constant = DRA752_GRADIENT_CONST,
 		.slope_pcb = DRA752_GRADIENT_SLOPE_W_PCB,
 		.constant_pcb = DRA752_GRADIENT_CONST_W_PCB,
 		},
diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
index 3ee34340edab..c6d217913dd1 100644
--- a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
@@ -91,8 +91,6 @@ const struct ti_bandgap_data omap34xx_data = {
 		.registers = &omap34xx_mpu_temp_sensor_registers,
 		.ts_data = &omap34xx_mpu_temp_sensor_data,
 		.domain = "cpu",
-		.slope = 0,
-		.constant = 20000,
 		.slope_pcb = 0,
 		.constant_pcb = 20000,
 		.register_cooling = NULL,
@@ -164,8 +162,6 @@ const struct ti_bandgap_data omap36xx_data = {
 		.registers = &omap36xx_mpu_temp_sensor_registers,
 		.ts_data = &omap36xx_mpu_temp_sensor_data,
 		.domain = "cpu",
-		.slope = 0,
-		.constant = 20000,
 		.slope_pcb = 0,
 		.constant_pcb = 20000,
 		.register_cooling = NULL,
diff --git a/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
index d255d33da9eb..fd1113360603 100644
--- a/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
@@ -82,8 +82,6 @@ const struct ti_bandgap_data omap4430_data = {
 		.registers = &omap4430_mpu_temp_sensor_registers,
 		.ts_data = &omap4430_mpu_temp_sensor_data,
 		.domain = "cpu",
-		.slope = OMAP_GRADIENT_SLOPE_4430,
-		.constant = OMAP_GRADIENT_CONST_4430,
 		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430,
 		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430,
 		.register_cooling = ti_thermal_register_cpu_cooling,
@@ -222,8 +220,6 @@ const struct ti_bandgap_data omap4460_data = {
 		.registers = &omap4460_mpu_temp_sensor_registers,
 		.ts_data = &omap4460_mpu_temp_sensor_data,
 		.domain = "cpu",
-		.slope = OMAP_GRADIENT_SLOPE_4460,
-		.constant = OMAP_GRADIENT_CONST_4460,
 		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
 		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
 		.register_cooling = ti_thermal_register_cpu_cooling,
@@ -255,8 +251,6 @@ const struct ti_bandgap_data omap4470_data = {
 		.registers = &omap4460_mpu_temp_sensor_registers,
 		.ts_data = &omap4460_mpu_temp_sensor_data,
 		.domain = "cpu",
-		.slope = OMAP_GRADIENT_SLOPE_4470,
-		.constant = OMAP_GRADIENT_CONST_4470,
 		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
 		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
 		.register_cooling = ti_thermal_register_cpu_cooling,
diff --git a/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
index 79ff70c446ba..cd9a304fb571 100644
--- a/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
+++ b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c
@@ -336,8 +336,6 @@ const struct ti_bandgap_data omap5430_data = {
 		.domain = "cpu",
 		.register_cooling = ti_thermal_register_cpu_cooling,
 		.unregister_cooling = ti_thermal_unregister_cpu_cooling,
-		.slope = OMAP_GRADIENT_SLOPE_5430_CPU,
-		.constant = OMAP_GRADIENT_CONST_5430_CPU,
 		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU,
 		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU,
 		},
@@ -345,8 +343,6 @@ const struct ti_bandgap_data omap5430_data = {
 		.registers = &omap5430_gpu_temp_sensor_registers,
 		.ts_data = &omap5430_gpu_temp_sensor_data,
 		.domain = "gpu",
-		.slope = OMAP_GRADIENT_SLOPE_5430_GPU,
-		.constant = OMAP_GRADIENT_CONST_5430_GPU,
 		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU,
 		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU,
 		},
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index fe0adb898764..209c664c2823 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -254,8 +254,6 @@ struct ti_bandgap {
  * @ts_data: pointer to struct with thresholds, limits of temperature sensor
  * @registers: pointer to the list of register offsets and bitfields
  * @domain: the name of the domain where the sensor is located
- * @slope: sensor gradient slope info for hotspot extrapolation equation
- * @constant: sensor gradient const info for hotspot extrapolation equation
  * @slope_pcb: sensor gradient slope info for hotspot extrapolation equation
  *             with no external influence
  * @constant_pcb: sensor gradient const info for hotspot extrapolation equation
@@ -274,8 +272,6 @@ struct ti_temp_sensor {
 	struct temp_sensor_registers	*registers;
 	char				*domain;
 	/* for hotspot extrapolation */
-	const int			slope;
-	const int			constant;
 	const int			slope_pcb;
 	const int			constant_pcb;
 	int (*register_cooling)(struct ti_bandgap *bgp, int id);
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 0586bd0f2bab..02790f69e26c 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -96,8 +96,8 @@ static inline int __ti_thermal_get_temp(void *devdata, int *temp)
 		return ret;
 
 	/* Default constants */
-	slope = s->slope;
-	constant = s->constant;
+	slope = thermal_zone_get_slope(data->ti_thermal);
+	constant = thermal_zone_get_offset(data->ti_thermal);
 
 	pcb_tz = data->pcb_tz;
 	/* In case pcb zone is available, use the extrapolation rule with it */
@@ -126,119 +126,6 @@ static inline int ti_thermal_get_temp(struct thermal_zone_device *thermal,
 	return __ti_thermal_get_temp(data, temp);
 }
 
-/* Bind callback functions for thermal zone */
-static int ti_thermal_bind(struct thermal_zone_device *thermal,
-			   struct thermal_cooling_device *cdev)
-{
-	struct ti_thermal_data *data = thermal->devdata;
-	int id;
-
-	if (!data || IS_ERR(data))
-		return -ENODEV;
-
-	/* check if this is the cooling device we registered */
-	if (data->cool_dev != cdev)
-		return 0;
-
-	id = data->sensor_id;
-
-	/* Simple thing, two trips, one passive another critical */
-	return thermal_zone_bind_cooling_device(thermal, 0, cdev,
-	/* bind with min and max states defined by cpu_cooling */
-						THERMAL_NO_LIMIT,
-						THERMAL_NO_LIMIT,
-						THERMAL_WEIGHT_DEFAULT);
-}
-
-/* Unbind callback functions for thermal zone */
-static int ti_thermal_unbind(struct thermal_zone_device *thermal,
-			     struct thermal_cooling_device *cdev)
-{
-	struct ti_thermal_data *data = thermal->devdata;
-
-	if (!data || IS_ERR(data))
-		return -ENODEV;
-
-	/* check if this is the cooling device we registered */
-	if (data->cool_dev != cdev)
-		return 0;
-
-	/* Simple thing, two trips, one passive another critical */
-	return thermal_zone_unbind_cooling_device(thermal, 0, cdev);
-}
-
-/* Get mode callback functions for thermal zone */
-static int ti_thermal_get_mode(struct thermal_zone_device *thermal,
-			       enum thermal_device_mode *mode)
-{
-	struct ti_thermal_data *data = thermal->devdata;
-
-	if (data)
-		*mode = data->mode;
-
-	return 0;
-}
-
-/* Set mode callback functions for thermal zone */
-static int ti_thermal_set_mode(struct thermal_zone_device *thermal,
-			       enum thermal_device_mode mode)
-{
-	struct ti_thermal_data *data = thermal->devdata;
-	struct ti_bandgap *bgp;
-
-	bgp = data->bgp;
-
-	if (!data->ti_thermal) {
-		dev_notice(&thermal->device, "thermal zone not registered\n");
-		return 0;
-	}
-
-	mutex_lock(&data->ti_thermal->lock);
-
-	if (mode == THERMAL_DEVICE_ENABLED)
-		data->ti_thermal->polling_delay = FAST_TEMP_MONITORING_RATE;
-	else
-		data->ti_thermal->polling_delay = 0;
-
-	mutex_unlock(&data->ti_thermal->lock);
-
-	data->mode = mode;
-	ti_bandgap_write_update_interval(bgp, data->sensor_id,
-					data->ti_thermal->polling_delay);
-	thermal_zone_device_update(data->ti_thermal, THERMAL_EVENT_UNSPECIFIED);
-	dev_dbg(&thermal->device, "thermal polling set for duration=%d msec\n",
-		data->ti_thermal->polling_delay);
-
-	return 0;
-}
-
-/* Get trip type callback functions for thermal zone */
-static int ti_thermal_get_trip_type(struct thermal_zone_device *thermal,
-				    int trip, enum thermal_trip_type *type)
-{
-	if (!ti_thermal_is_valid_trip(trip))
-		return -EINVAL;
-
-	if (trip + 1 == OMAP_TRIP_NUMBER)
-		*type = THERMAL_TRIP_CRITICAL;
-	else
-		*type = THERMAL_TRIP_PASSIVE;
-
-	return 0;
-}
-
-/* Get trip temperature callback functions for thermal zone */
-static int ti_thermal_get_trip_temp(struct thermal_zone_device *thermal,
-				    int trip, int *temp)
-{
-	if (!ti_thermal_is_valid_trip(trip))
-		return -EINVAL;
-
-	*temp = ti_thermal_get_trip_value(trip);
-
-	return 0;
-}
-
 static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend)
 {
 	struct ti_thermal_data *data = p;
@@ -262,38 +149,11 @@ static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend)
 	return 0;
 }
 
-/* Get the temperature trend callback functions for thermal zone */
-static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
-				int trip, enum thermal_trend *trend)
-{
-	return __ti_thermal_get_trend(thermal->devdata, trip, trend);
-}
-
-/* Get critical temperature callback functions for thermal zone */
-static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal,
-				    int *temp)
-{
-	/* shutdown zone */
-	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,
-	.bind = ti_thermal_bind,
-	.unbind = ti_thermal_unbind,
-	.get_mode = ti_thermal_get_mode,
-	.set_mode = ti_thermal_set_mode,
-	.get_trip_type = ti_thermal_get_trip_type,
-	.get_trip_temp = ti_thermal_get_trip_temp,
-	.get_crit_temp = ti_thermal_get_crit_temp,
-};
-
 static struct ti_thermal_data
 *ti_thermal_build_data(struct ti_bandgap *bgp, int id)
 {
@@ -331,18 +191,10 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 	data->ti_thermal = devm_thermal_zone_of_sensor_register(bgp->dev, id,
 					data, &ti_of_thermal_ops);
 	if (IS_ERR(data->ti_thermal)) {
-		/* Create thermal zone */
-		data->ti_thermal = thermal_zone_device_register(domain,
-				OMAP_TRIP_NUMBER, 0, data, &ti_thermal_ops,
-				NULL, FAST_TEMP_MONITORING_RATE,
-				FAST_TEMP_MONITORING_RATE);
-		if (IS_ERR(data->ti_thermal)) {
-			dev_err(bgp->dev, "thermal zone device is NULL\n");
-			return PTR_ERR(data->ti_thermal);
-		}
-		data->ti_thermal->polling_delay = FAST_TEMP_MONITORING_RATE;
-		data->our_zone = true;
+		dev_err(bgp->dev, "thermal zone device is NULL\n");
+		return PTR_ERR(data->ti_thermal);
 	}
+
 	ti_bandgap_set_sensor_data(bgp, id, data);
 	ti_bandgap_write_update_interval(bgp, data->sensor_id,
 					data->ti_thermal->polling_delay);
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal.h b/drivers/thermal/ti-soc-thermal/ti-thermal.h
index f8b7ffea6194..8e85ca973967 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal.h
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal.h
@@ -25,22 +25,6 @@
 
 #include "ti-bandgap.h"
 
-/* sensors gradient and offsets */
-#define OMAP_GRADIENT_SLOPE_4430				0
-#define OMAP_GRADIENT_CONST_4430				20000
-#define OMAP_GRADIENT_SLOPE_4460				348
-#define OMAP_GRADIENT_CONST_4460				-9301
-#define OMAP_GRADIENT_SLOPE_4470				308
-#define OMAP_GRADIENT_CONST_4470				-7896
-
-#define OMAP_GRADIENT_SLOPE_5430_CPU				65
-#define OMAP_GRADIENT_CONST_5430_CPU				-1791
-#define OMAP_GRADIENT_SLOPE_5430_GPU				117
-#define OMAP_GRADIENT_CONST_5430_GPU				-2992
-
-#define DRA752_GRADIENT_SLOPE					0
-#define DRA752_GRADIENT_CONST					2000
-
 /* PCB sensor calculation constants */
 #define OMAP_GRADIENT_SLOPE_W_PCB_4430				0
 #define OMAP_GRADIENT_CONST_W_PCB_4430				20000