drivers: thermal: Use deferrable work and power efficient workqueue

Thermal core uses work events to poll for sensor driver temperature crossing a threshold. Since it is not using a deferrable workqueue, it might wake-up the device from sleep. Use a deferrable work event and post the work in the power efficient workqueue for estimating virtual sensor temperature. Change-Id: I9dd21d8fc4e5ca96e06db9ecb57a628618494a01 Signed-off-by: Ram Chandrasekar <[email protected]>
radcolor · Jan 12, 2020 · 9a0d087 · 9a0d087
1 parent 9fd2399
commit 9a0d087
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
@@ -830,8 +830,9 @@ static void monitor_thermal_zone(struct thermal_zone_device *tz)
 		thermal_zone_device_set_polling(thermal_passive_wq,
 						tz, tz->passive_delay);
 	else if (tz->polling_delay)
-		thermal_zone_device_set_polling(system_freezable_wq,
-						tz, tz->polling_delay);
+		thermal_zone_device_set_polling(
+				system_freezable_power_efficient_wq,
+				tz, tz->polling_delay);
 	else
 		thermal_zone_device_set_polling(NULL, tz, 0);
 
@@ -2468,7 +2469,7 @@ struct thermal_zone_device *thermal_zone_device_register(const char *type,
 	/* Bind cooling devices for this zone */
 	bind_tz(tz);
 
-	INIT_DELAYED_WORK(&(tz->poll_queue), thermal_zone_device_check);
+	INIT_DEFERRABLE_WORK(&(tz->poll_queue), thermal_zone_device_check);
 
 	thermal_zone_device_reset(tz);
 	/* Update the new thermal zone and mark it as already updated. */