1 files changed, 18 insertions, 27 deletions

diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index e25e48d76aa7..45f04a25255a 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -66,6 +66,7 @@ struct power_actor {
  * struct power_allocator_params - parameters for the power allocator governor
  * @allocated_tzp:	whether we have allocated tzp for this thermal zone and
  *			it needs to be freed on unbind
+ * @update_cdevs:	whether or not update cdevs on the next run
  * @err_integral:	accumulated error in the PID controller.
  * @prev_err:	error in the previous iteration of the PID controller.
  *		Used to calculate the derivative term.
@@ -84,6 +85,7 @@ struct power_actor {
  */
 struct power_allocator_params {
 	bool allocated_tzp;
+	bool update_cdevs;
 	s64 err_integral;
 	s32 prev_err;
 	u32 sustainable_power;
@@ -395,7 +397,7 @@ 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 +412,7 @@ 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 +473,6 @@ 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;
 }
 
 /**
@@ -496,9 +496,11 @@ static void get_governor_trips(struct thermal_zone_device *tz,
 	const struct thermal_trip *first_passive = NULL;
 	const struct thermal_trip *last_passive = NULL;
 	const struct thermal_trip *last_active = NULL;
-	const struct thermal_trip *trip;
+	const struct thermal_trip_desc *td;
+
+	for_each_trip_desc(tz, td) {
+		const struct thermal_trip *trip = &td->trip;
 
-	for_each_trip(tz, trip) {
 		switch (trip->type) {
 		case THERMAL_TRIP_PASSIVE:
 			if (!first_passive) {
@@ -533,7 +535,7 @@ static void reset_pid_controller(struct power_allocator_params *params)
 	params->prev_err = 0;
 }
 
-static void allow_maximum_power(struct thermal_zone_device *tz, bool update)
+static void allow_maximum_power(struct thermal_zone_device *tz)
 {
 	struct power_allocator_params *params = tz->governor_data;
 	struct thermal_cooling_device *cdev;
@@ -555,7 +557,7 @@ static void allow_maximum_power(struct thermal_zone_device *tz, bool update)
 		 */
 		cdev->ops->get_requested_power(cdev, &req_power);
 
-		if (update)
+		if (params->update_cdevs)
 			__thermal_cdev_update(cdev);
 
 		mutex_unlock(&cdev->lock);
@@ -743,40 +745,29 @@ 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);
+		params->update_cdevs = false;
+		return;
 	}
 
-	tz->passive = 1;
-
-	return allocate_power(tz, params->trip_max->temperature);
+	allocate_power(tz, params->trip_max->temperature);
+	params->update_cdevs = true;
 }
 
 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);