Merge branch 'thermal-core' into linux-nextNotice: this object is not reachable from any branch.

* thermal-core:
  thermal: core: Relocate critical and hot trip handling
  thermal: core: Drop the .throttle() governor callback
  thermal: gov_user_space: Use .trip_crossed() instead of .throttle()
  thermal: gov_fair_share: Eliminate unnecessary integer divisions
  thermal: gov_fair_share: Use trip thresholds instead of trip temperatures
  thermal: gov_fair_share: Use .manage() callback instead of .throttle()
  thermal: gov_step_wise: Clean up thermal_zone_trip_update()
  thermal: gov_step_wise: Use trip thresholds instead of trip temperatures
  thermal: gov_step_wise: Use .manage() callback instead of .throttle()
  thermal: gov_power_allocator: Eliminate a redundant variable
  thermal: gov_power_allocator: Use .manage() callback instead of .throttle()
  thermal: core: Introduce .manage() callback for thermal governors
  thermal: gov_bang_bang: Fold thermal_zone_trip_update() into its caller
  thermal: gov_bang_bang: Clean up thermal_zone_trip_update()
  thermal: gov_bang_bang: Use .trip_crossed() instead of .throttle()
  thermal: core: Introduce .trip_crossed() callback for thermal governors
Notice: this object is not reachable from any branch.

7 files changed, 153 insertions, 165 deletions

diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c
index c3b2943a2db8bf..acb52c9ee10f1a 100644
--- a/drivers/thermal/gov_bang_bang.c
+++ b/drivers/thermal/gov_bang_bang.c
@@ -13,60 +13,11 @@
 
 #include "thermal_core.h"
 
-static int thermal_zone_trip_update(struct thermal_zone_device *tz,
-				    const struct thermal_trip *trip)
-{
-	int trip_index = thermal_zone_trip_id(tz, trip);
-	struct thermal_instance *instance;
-
-	if (!trip->hysteresis)
-		dev_info_once(&tz->device,
-			      "Zero hysteresis value for thermal zone %s\n", tz->type);
-
-	dev_dbg(&tz->device, "Trip%d[temp=%d]:temp=%d:hyst=%d\n",
-				trip_index, trip->temperature, tz->temperature,
-				trip->hysteresis);
-
-	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		if (instance->trip != trip)
-			continue;
-
-		/* in case fan is in initial state, switch the fan off */
-		if (instance->target == THERMAL_NO_TARGET)
-			instance->target = 0;
-
-		/* in case fan is neither on nor off set the fan to active */
-		if (instance->target != 0 && instance->target != 1) {
-			pr_warn("Thermal instance %s controlled by bang-bang has unexpected state: %ld\n",
-					instance->name, instance->target);
-			instance->target = 1;
-		}
-
-		/*
-		 * enable fan when temperature exceeds trip_temp and disable
-		 * the fan in case it falls below trip_temp minus hysteresis
-		 */
-		if (instance->target == 0 && tz->temperature >= trip->temperature)
-			instance->target = 1;
-		else if (instance->target == 1 &&
-			 tz->temperature < trip->temperature - trip->hysteresis)
-			instance->target = 0;
-
-		dev_dbg(&instance->cdev->device, "target=%d\n",
-					(int)instance->target);
-
-		mutex_lock(&instance->cdev->lock);
-		instance->cdev->updated = false; /* cdev needs update */
-		mutex_unlock(&instance->cdev->lock);
-	}
-
-	return 0;
-}
-
 /**
  * bang_bang_control - controls devices associated with the given zone
  * @tz: thermal_zone_device
  * @trip: the trip point
+ * @crossed_up: whether or not the trip has been crossed on the way up
  *
  * Regulation Logic: a two point regulation, deliver cooling state depending
  * on the previous state shown in this diagram:
@@ -90,26 +41,54 @@ static int thermal_zone_trip_update(struct thermal_zone_device *tz,
  *     (trip_temp - hyst) so that the fan gets turned off again.
  *
  */
-static int bang_bang_control(struct thermal_zone_device *tz,
-			     const struct thermal_trip *trip)
+static void bang_bang_control(struct thermal_zone_device *tz,
+			      const struct thermal_trip *trip,
+			      bool crossed_up)
 {
 	struct thermal_instance *instance;
-	int ret;
 
 	lockdep_assert_held(&tz->lock);
 
-	ret = thermal_zone_trip_update(tz, trip);
-	if (ret)
-		return ret;
+	dev_dbg(&tz->device, "Trip%d[temp=%d]:temp=%d:hyst=%d\n",
+		thermal_zone_trip_id(tz, trip), trip->temperature,
+		tz->temperature, trip->hysteresis);
+
+	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
+		if (instance->trip != trip)
+			continue;
+
+		if (instance->target == THERMAL_NO_TARGET)
+			instance->target = 0;
+
+		if (instance->target != 0 && instance->target != 1) {
+			pr_debug("Unexpected state %ld of thermal instance %s in bang-bang\n",
+				 instance->target, instance->name);
+
+			instance->target = 1;
+		}
+
+		/*
+		 * Enable the fan when the trip is crossed on the way up and
+		 * disable it when the trip is crossed on the way down.
+		 */
+		if (instance->target == 0 && crossed_up)
+			instance->target = 1;
+		else if (instance->target == 1 && !crossed_up)
+			instance->target = 0;
+
+		dev_dbg(&instance->cdev->device, "target=%ld\n", instance->target);
+
+		mutex_lock(&instance->cdev->lock);
+		instance->cdev->updated = false; /* cdev needs update */
+		mutex_unlock(&instance->cdev->lock);
+	}
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
 		thermal_cdev_update(instance->cdev);
-
-	return 0;
 }
 
 static struct thermal_governor thermal_gov_bang_bang = {
 	.name		= "bang_bang",
-	.throttle	= bang_bang_control,
+	.trip_crossed	= bang_bang_control,
 };
 THERMAL_GOVERNOR_DECLARE(thermal_gov_bang_bang);
diff --git a/drivers/thermal/gov_fair_share.c b/drivers/thermal/gov_fair_share.c
index 6ef8cfde7749a9..ce0ea571ed67ab 100644
--- a/drivers/thermal/gov_fair_share.c
+++ b/drivers/thermal/gov_fair_share.c
@@ -17,100 +17,111 @@
 
 static int get_trip_level(struct thermal_zone_device *tz)
 {
-	const struct thermal_trip *level_trip = NULL;
+	const struct thermal_trip_desc *level_td = NULL;
 	const struct thermal_trip_desc *td;
 	int trip_level = -1;
 
 	for_each_trip_desc(tz, td) {
-		const struct thermal_trip *trip = &td->trip;
-
-		if (trip->temperature >= tz->temperature)
+		if (td->threshold > tz->temperature)
 			continue;
 
 		trip_level++;
 
-		if (!level_trip || trip->temperature > level_trip->temperature)
-			level_trip = trip;
+		if (!level_td || td->threshold > level_td->threshold)
+			level_td = td;
 	}
 
 	/*  Bail out if the temperature is not greater than any trips. */
 	if (trip_level < 0)
 		return 0;
 
-	trace_thermal_zone_trip(tz, thermal_zone_trip_id(tz, level_trip),
-				level_trip->type);
+	trace_thermal_zone_trip(tz, thermal_zone_trip_id(tz, &level_td->trip),
+				level_td->trip.type);
 
 	return trip_level;
 }
 
-static long get_target_state(struct thermal_zone_device *tz,
-		struct thermal_cooling_device *cdev, int percentage, int level)
-{
-	return (long)(percentage * level * cdev->max_state) / (100 * tz->num_trips);
-}
-
 /**
  * fair_share_throttle - throttles devices associated with the given zone
  * @tz: thermal_zone_device
  * @trip: trip point
+ * @trip_level: number of trips crossed by the zone temperature
  *
  * Throttling Logic: This uses three parameters to calculate the new
  * throttle state of the cooling devices associated with the given zone.
  *
  * Parameters used for Throttling:
  * P1. max_state: Maximum throttle state exposed by the cooling device.
- * P2. percentage[i]/100:
+ * P2. weight[i]/total_weight:
  *	How 'effective' the 'i'th device is, in cooling the given zone.
- * P3. cur_trip_level/max_no_of_trips:
+ * P3. trip_level/max_no_of_trips:
  *	This describes the extent to which the devices should be throttled.
  *	We do not want to throttle too much when we trip a lower temperature,
  *	whereas the throttling is at full swing if we trip critical levels.
- *	(Heavily assumes the trip points are in ascending order)
  * new_state of cooling device = P3 * P2 * P1
  */
-static int fair_share_throttle(struct thermal_zone_device *tz,
-			       const struct thermal_trip *trip)
+static void fair_share_throttle(struct thermal_zone_device *tz,
+				const struct thermal_trip *trip,
+				int trip_level)
 {
 	struct thermal_instance *instance;
 	int total_weight = 0;
-	int total_instance = 0;
-	int cur_trip_level = get_trip_level(tz);
-
-	lockdep_assert_held(&tz->lock);
+	int nr_instances = 0;
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
 		if (instance->trip != trip)
 			continue;
 
 		total_weight += instance->weight;
-		total_instance++;
+		nr_instances++;
 	}
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		int percentage;
 		struct thermal_cooling_device *cdev = instance->cdev;
+		u64 dividend;
+		u32 divisor;
 
 		if (instance->trip != trip)
 			continue;
 
-		if (!total_weight)
-			percentage = 100 / total_instance;
-		else
-			percentage = (instance->weight * 100) / total_weight;
-
-		instance->target = get_target_state(tz, cdev, percentage,
-						    cur_trip_level);
+		dividend = trip_level;
+		dividend *= cdev->max_state;
+		divisor = tz->num_trips;
+		if (total_weight) {
+			dividend *= instance->weight;
+			divisor *= total_weight;
+		} else {
+			divisor *= nr_instances;
+		}
+		instance->target = div_u64(dividend, divisor);
 
 		mutex_lock(&cdev->lock);
 		__thermal_cdev_update(cdev);
 		mutex_unlock(&cdev->lock);
 	}
+}
+
+static void fair_share_manage(struct thermal_zone_device *tz)
+{
+	int trip_level = get_trip_level(tz);
+	const struct thermal_trip_desc *td;
+
+	lockdep_assert_held(&tz->lock);
+
+	for_each_trip_desc(tz, td) {
+		const struct thermal_trip *trip = &td->trip;
 
-	return 0;
+		if (trip->temperature == THERMAL_TEMP_INVALID ||
+		    trip->type == THERMAL_TRIP_CRITICAL ||
+		    trip->type == THERMAL_TRIP_HOT)
+			continue;
+
+		fair_share_throttle(tz, trip, trip_level);
+	}
 }
 
 static struct thermal_governor thermal_gov_fair_share = {
-	.name		= "fair_share",
-	.throttle	= fair_share_throttle,
+	.name	= "fair_share",
+	.manage	= fair_share_manage,
 };
 THERMAL_GOVERNOR_DECLARE(thermal_gov_fair_share);
diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index ac1d02193a1bf1..7450ab77d5f09e 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -395,7 +395,7 @@ static void divvy_up_power(struct power_actor *power, int num_actors,
 	}
 }
 
-static int allocate_power(struct thermal_zone_device *tz, int control_temp)
+static void allocate_power(struct thermal_zone_device *tz, int control_temp)
 {
 	struct power_allocator_params *params = tz->governor_data;
 	unsigned int num_actors = params->num_actors;
@@ -410,7 +410,7 @@ static int allocate_power(struct thermal_zone_device *tz, int control_temp)
 	int i = 0, ret;
 
 	if (!num_actors)
-		return -ENODEV;
+		return;
 
 	/* Clean all buffers for new power estimations */
 	memset(power, 0, params->buffer_size);
@@ -471,8 +471,6 @@ static int allocate_power(struct thermal_zone_device *tz, int control_temp)
 				      num_actors, power_range,
 				      max_allocatable_power, tz->temperature,
 				      control_temp - tz->temperature);
-
-	return 0;
 }
 
 /**
@@ -745,40 +743,29 @@ static void power_allocator_unbind(struct thermal_zone_device *tz)
 	tz->governor_data = NULL;
 }
 
-static int power_allocator_throttle(struct thermal_zone_device *tz,
-				    const struct thermal_trip *trip)
+static void power_allocator_manage(struct thermal_zone_device *tz)
 {
 	struct power_allocator_params *params = tz->governor_data;
-	bool update;
+	const struct thermal_trip *trip = params->trip_switch_on;
 
 	lockdep_assert_held(&tz->lock);
 
-	/*
-	 * We get called for every trip point but we only need to do
-	 * our calculations once
-	 */
-	if (trip != params->trip_max)
-		return 0;
-
-	trip = params->trip_switch_on;
 	if (trip && tz->temperature < trip->temperature) {
-		update = tz->passive;
-		tz->passive = 0;
 		reset_pid_controller(params);
-		allow_maximum_power(tz, update);
-		return 0;
+		allow_maximum_power(tz, tz->passive);
+		tz->passive = 0;
+		return;
 	}
 
+	allocate_power(tz, params->trip_max->temperature);
 	tz->passive = 1;
-
-	return allocate_power(tz, params->trip_max->temperature);
 }
 
 static struct thermal_governor thermal_gov_power_allocator = {
 	.name		= "power_allocator",
 	.bind_to_tz	= power_allocator_bind,
 	.unbind_from_tz	= power_allocator_unbind,
-	.throttle	= power_allocator_throttle,
+	.manage		= power_allocator_manage,
 	.update_tz	= power_allocator_update_tz,
 };
 THERMAL_GOVERNOR_DECLARE(thermal_gov_power_allocator);
diff --git a/drivers/thermal/gov_step_wise.c b/drivers/thermal/gov_step_wise.c
index ee2fb4e63d1478..0196a1a02290c9 100644
--- a/drivers/thermal/gov_step_wise.c
+++ b/drivers/thermal/gov_step_wise.c
@@ -62,32 +62,33 @@ static unsigned long get_target_state(struct thermal_instance *instance,
 }
 
 static void thermal_zone_trip_update(struct thermal_zone_device *tz,
-				     const struct thermal_trip *trip)
+				     const struct thermal_trip *trip,
+				     int trip_threshold)
 {
+	enum thermal_trend trend = get_tz_trend(tz, trip);
 	int trip_id = thermal_zone_trip_id(tz, trip);
-	enum thermal_trend trend;
 	struct thermal_instance *instance;
 	bool throttle = false;
-	int old_target;
 
-	trend = get_tz_trend(tz, trip);
-
-	if (tz->temperature >= trip->temperature) {
+	if (tz->temperature >= trip_threshold) {
 		throttle = true;
 		trace_thermal_zone_trip(tz, trip_id, trip->type);
 	}
 
 	dev_dbg(&tz->device, "Trip%d[type=%d,temp=%d]:trend=%d,throttle=%d\n",
-		trip_id, trip->type, trip->temperature, trend, throttle);
+		trip_id, trip->type, trip_threshold, trend, throttle);
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
+		int old_target;
+
 		if (instance->trip != trip)
 			continue;
 
 		old_target = instance->target;
 		instance->target = get_target_state(instance, trend, throttle);
-		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
-					old_target, (int)instance->target);
+
+		dev_dbg(&instance->cdev->device, "old_target=%d, target=%ld\n",
+			old_target, instance->target);
 
 		if (instance->initialized && old_target == instance->target)
 			continue;
@@ -103,40 +104,44 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz,
 		}
 
 		instance->initialized = true;
+
 		mutex_lock(&instance->cdev->lock);
 		instance->cdev->updated = false; /* cdev needs update */
 		mutex_unlock(&instance->cdev->lock);
 	}
 }
 
-/**
- * step_wise_throttle - throttles devices associated with the given zone
- * @tz: thermal_zone_device
- * @trip: trip point
- *
- * Throttling Logic: This uses the trend of the thermal zone to throttle.
- * If the thermal zone is 'heating up' this throttles all the cooling
- * devices associated with the zone and its particular trip point, by one
- * step. If the zone is 'cooling down' it brings back the performance of
- * the devices by one step.
- */
-static int step_wise_throttle(struct thermal_zone_device *tz,
-			      const struct thermal_trip *trip)
+static void step_wise_manage(struct thermal_zone_device *tz)
 {
+	const struct thermal_trip_desc *td;
 	struct thermal_instance *instance;
 
 	lockdep_assert_held(&tz->lock);
 
-	thermal_zone_trip_update(tz, trip);
+	/*
+	 * Throttling Logic: Use the trend of the thermal zone to throttle.
+	 * If the thermal zone is 'heating up', throttle all of the cooling
+	 * devices associated with each trip point by one step. If the zone
+	 * is 'cooling down', it brings back the performance of the devices
+	 * by one step.
+	 */
+	for_each_trip_desc(tz, td) {
+		const struct thermal_trip *trip = &td->trip;
+
+		if (trip->temperature == THERMAL_TEMP_INVALID ||
+		    trip->type == THERMAL_TRIP_CRITICAL ||
+		    trip->type == THERMAL_TRIP_HOT)
+			continue;
+
+		thermal_zone_trip_update(tz, trip, td->threshold);
+	}
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
 		thermal_cdev_update(instance->cdev);
-
-	return 0;
 }
 
 static struct thermal_governor thermal_gov_step_wise = {
-	.name		= "step_wise",
-	.throttle	= step_wise_throttle,
+	.name	= "step_wise",
+	.manage	= step_wise_manage,
 };
 THERMAL_GOVERNOR_DECLARE(thermal_gov_step_wise);
diff --git a/drivers/thermal/gov_user_space.c b/drivers/thermal/gov_user_space.c
index 7a1790b7e8f557..75137b419eb239 100644
--- a/drivers/thermal/gov_user_space.c
+++ b/drivers/thermal/gov_user_space.c
@@ -26,11 +26,13 @@ static int user_space_bind(struct thermal_zone_device *tz)
  * notify_user_space - Notifies user space about thermal events
  * @tz: thermal_zone_device
  * @trip: trip point
+ * @crossed_up: whether or not the trip has been crossed on the way up
  *
  * This function notifies the user space through UEvents.
  */
-static int notify_user_space(struct thermal_zone_device *tz,
-			     const struct thermal_trip *trip)
+static void notify_user_space(struct thermal_zone_device *tz,
+			      const struct thermal_trip *trip,
+			      bool crossed_up)
 {
 	char *thermal_prop[5];
 	int i;
@@ -46,13 +48,11 @@ static int notify_user_space(struct thermal_zone_device *tz,
 	kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop);
 	for (i = 0; i < 4; ++i)
 		kfree(thermal_prop[i]);
-
-	return 0;
 }
 
 static struct thermal_governor thermal_gov_user_space = {
 	.name		= "user_space",
-	.throttle	= notify_user_space,
+	.trip_crossed	= notify_user_space,
 	.bind_to_tz	= user_space_bind,
 };
 THERMAL_GOVERNOR_DECLARE(thermal_gov_user_space);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 58e60bcdc0a58a..87b3cb8679d577 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -302,11 +302,12 @@ static void monitor_thermal_zone(struct thermal_zone_device *tz)
 		thermal_zone_device_set_polling(tz, tz->polling_delay_jiffies);
 }
 
-static void handle_non_critical_trips(struct thermal_zone_device *tz,
-				      const struct thermal_trip *trip)
+static struct thermal_governor *thermal_get_tz_governor(struct thermal_zone_device *tz)
 {
-	tz->governor ? tz->governor->throttle(tz, trip) :
-		       def_governor->throttle(tz, trip);
+	if (tz->governor)
+		return tz->governor;
+
+	return def_governor;
 }
 
 void thermal_governor_update_tz(struct thermal_zone_device *tz,
@@ -349,10 +350,6 @@ void thermal_zone_device_critical_reboot(struct thermal_zone_device *tz)
 static void handle_critical_trips(struct thermal_zone_device *tz,
 				  const struct thermal_trip *trip)
 {
-	/* If we have not crossed the trip_temp, we do not care. */
-	if (trip->temperature <= 0 || tz->temperature < trip->temperature)
-		return;
-
 	trace_thermal_zone_trip(tz, thermal_zone_trip_id(tz, trip), trip->type);
 
 	if (trip->type == THERMAL_TRIP_CRITICAL)
@@ -404,12 +401,11 @@ static void handle_thermal_trip(struct thermal_zone_device *tz,
 		list_add_tail(&td->notify_list_node, way_up_list);
 		td->notify_temp = trip->temperature;
 		td->threshold -= trip->hysteresis;
-	}
 
-	if (trip->type == THERMAL_TRIP_CRITICAL || trip->type == THERMAL_TRIP_HOT)
-		handle_critical_trips(tz, trip);
-	else
-		handle_non_critical_trips(tz, trip);
+		if (trip->type == THERMAL_TRIP_CRITICAL ||
+		    trip->type == THERMAL_TRIP_HOT)
+			handle_critical_trips(tz, trip);
+	}
 }
 
 static void update_temperature(struct thermal_zone_device *tz)
@@ -470,6 +466,7 @@ static int thermal_trip_notify_cmp(void *ascending, const struct list_head *a,
 void __thermal_zone_device_update(struct thermal_zone_device *tz,
 				  enum thermal_notify_event event)
 {
+	struct thermal_governor *governor = thermal_get_tz_governor(tz);
 	struct thermal_trip_desc *td;
 	LIST_HEAD(way_down_list);
 	LIST_HEAD(way_up_list);
@@ -493,14 +490,21 @@ void __thermal_zone_device_update(struct thermal_zone_device *tz,
 	list_for_each_entry(td, &way_up_list, notify_list_node) {
 		thermal_notify_tz_trip_up(tz, &td->trip);
 		thermal_debug_tz_trip_up(tz, &td->trip);
+		if (governor->trip_crossed)
+			governor->trip_crossed(tz, &td->trip, true);
 	}
 
 	list_sort(NULL, &way_down_list, thermal_trip_notify_cmp);
 	list_for_each_entry(td, &way_down_list, notify_list_node) {
 		thermal_notify_tz_trip_down(tz, &td->trip);
 		thermal_debug_tz_trip_down(tz, &td->trip);
+		if (governor->trip_crossed)
+			governor->trip_crossed(tz, &td->trip, false);
 	}
 
+	if (governor->manage)
+		governor->manage(tz);
+
 	monitor_thermal_zone(tz);
 }
 
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index b461d9583834cf..d9785e5bbb08cd 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -30,8 +30,8 @@ struct thermal_trip_desc {
  *		otherwise it fails.
  * @unbind_from_tz:	callback called when a governor is unbound from a
  *			thermal zone.
- * @throttle:	callback called for every trip point even if temperature is
- *		below the trip point temperature
+ * @trip_crossed:	called for trip points that have just been crossed
+ * @manage:	called on thermal zone temperature updates
  * @update_tz:	callback called when thermal zone internals have changed, e.g.
  *		thermal cooling instance was added/removed
  * @governor_list:	node in thermal_governor_list (in thermal_core.c)
@@ -40,8 +40,10 @@ struct thermal_governor {
 	const char *name;
 	int (*bind_to_tz)(struct thermal_zone_device *tz);
 	void (*unbind_from_tz)(struct thermal_zone_device *tz);
-	int (*throttle)(struct thermal_zone_device *tz,
-			const struct thermal_trip *trip);
+	void (*trip_crossed)(struct thermal_zone_device *tz,
+			     const struct thermal_trip *trip,
+			     bool crossed_up);
+	void (*manage)(struct thermal_zone_device *tz);
 	void (*update_tz)(struct thermal_zone_device *tz,
 			  enum thermal_notify_event reason);
 	struct list_head	governor_list;