[PATCH] thermal: core: using power_efficient_wq for thermal worker

[Chunyan Zhang]

From: Jeson Gao <jeson.gao@xxxxxxxxxx>

For SMP systems, thermal worker should use power_efficient_wq in power
saving mode, that will make scheduler more flexible on switching cpu
on/off for running work handler to avoid keeping work handler always
running on a single core, that will same some power.

Even if 'power_efficient_wq' relevant configs are disabled
'system_freezable_power_efficient_wq' is identical to system_freezable_wq,
behavior is unchanged.

Signed-off-by: Jeson Gao <jeson.gao@xxxxxxxxxx>
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxxxxxx>
---
 drivers/thermal/thermal_core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 6ab9823..99df89f 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -290,10 +290,12 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
 					    int delay)
 {
 	if (delay > 1000)
-		mod_delayed_work(system_freezable_wq, &tz->poll_queue,
+		mod_delayed_work(system_freezable_power_efficient_wq,
+				 &tz->poll_queue,
 				 round_jiffies(msecs_to_jiffies(delay)));
 	else if (delay)
-		mod_delayed_work(system_freezable_wq, &tz->poll_queue,
+		mod_delayed_work(system_freezable_power_efficient_wq,
+				 &tz->poll_queue,
 				 msecs_to_jiffies(delay));
 	else
 		cancel_delayed_work(&tz->poll_queue);
-- 
2.7.4