Merge "drivers: thermal: Notify only thermal zones whose trips are violated" (a3ce6e1c) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/thermal/of-thermal.c

+42 −0

Original line number	Diff line number	Diff line
		@@ -569,6 +569,46 @@ static int of_thermal_aggregate_trip_types(struct thermal_zone_device *tz,
		return 0;
		}

		static bool of_thermal_is_trips_triggered(struct thermal_zone_device *tz,
		int temp)
		{
		int tt, th, trip, last_temp;
		struct __thermal_zone *data = tz->devdata;
		bool triggered = false;

		mutex_lock(&tz->lock);
		last_temp = tz->last_temperature;
		for (trip = 0; trip < data->ntrips; trip++) {

		if (!tz->tzp->tracks_low) {
		tt = data->trips[trip].temperature;
		if (temp >= tt && last_temp < tt) {
		triggered = true;
		break;
		}
		th = tt - data->trips[trip].hysteresis;
		if (temp <= th && last_temp > th) {
		triggered = true;
		break;
		}
		} else {
		tt = data->trips[trip].temperature;
		if (temp <= tt && last_temp > tt) {
		triggered = true;
		break;
		}
		th = tt + data->trips[trip].hysteresis;
		if (temp >= th && last_temp < th) {
		triggered = true;
		break;
		}
		}
		}
		mutex_unlock(&tz->lock);

		return triggered;
		}

		/*
		* of_thermal_aggregate_trip - aggregate trip temperatures across sibling
		* thermal zones.
		@@ -605,6 +645,8 @@ static void handle_thermal_trip(struct thermal_zone_device *tz,
		thermal_zone_device_update(zone,
		THERMAL_EVENT_UNSPECIFIED);
		} else {
		if (!of_thermal_is_trips_triggered(zone, trip_temp))
		continue;
		thermal_zone_device_update_temp(zone,
		THERMAL_EVENT_UNSPECIFIED, trip_temp);
		}