commit df9a5ab46332b58a0ce8877fe65c7e98b9f36e8a
author Mark Brown <broonie@linaro.org> Thu Jul 18 22:42:22 2013 +0100
committer Chanwoo Choi <cw00.choi@samsung.com> Mon Aug 05 08:53:34 2013 +0900
tree a107497050a4d56bf8099e38fb92e52ab5f7cb0b
parent 7281e05aabee7484624d448da208932690ed62b3

extcon: arizona: Use power efficient workqueue

None of the delayed work the driver schedules has particularly short delays
and it is not performance sensitive so let the scheduler run it wherever
is most efficient rather than in a per CPU workqueue by using the system
power efficient workqueue.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

drivers/extcon/extcon-arizona.c

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 7a1b4a7..e557130 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -890,8 +890,9 @@
 
 handled:
 	if (info->detecting)
-		schedule_delayed_work(&info->micd_timeout_work,
-				      msecs_to_jiffies(info->micd_timeout));
+		queue_delayed_work(system_power_efficient_wq,
+				   &info->micd_timeout_work,
+				   msecs_to_jiffies(info->micd_timeout));
 
 	pm_runtime_mark_last_busy(info->dev);
 	mutex_unlock(&info->lock);
@@ -912,8 +913,9 @@
 	mutex_unlock(&info->lock);
 
 	if (debounce)
-		schedule_delayed_work(&info->micd_detect_work,
-				      msecs_to_jiffies(debounce));
+		queue_delayed_work(system_power_efficient_wq,
+				   &info->micd_detect_work,
+				   msecs_to_jiffies(debounce));
 	else
 		arizona_micd_detect(&info->micd_detect_work.work);
 
@@ -967,12 +969,14 @@
 	if (val == info->last_jackdet) {
 		dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n");
 		if (cancelled_hp)
-			schedule_delayed_work(&info->hpdet_work,
-					      msecs_to_jiffies(HPDET_DEBOUNCE));
+			queue_delayed_work(system_power_efficient_wq,
+					   &info->hpdet_work,
+					   msecs_to_jiffies(HPDET_DEBOUNCE));
 
 		if (cancelled_mic)
-			schedule_delayed_work(&info->micd_timeout_work,
-					      msecs_to_jiffies(info->micd_timeout));
+			queue_delayed_work(system_power_efficient_wq,
+					   &info->micd_timeout_work,
+					   msecs_to_jiffies(info->micd_timeout));
 
 		goto out;
 	}
@@ -994,8 +998,9 @@
 
 			arizona_start_mic(info);
 		} else {
-			schedule_delayed_work(&info->hpdet_work,
-					      msecs_to_jiffies(HPDET_DEBOUNCE));
+			queue_delayed_work(system_power_efficient_wq,
+					   &info->hpdet_work,
+					   msecs_to_jiffies(HPDET_DEBOUNCE));
 		}
 
 		regmap_update_bits(arizona->regmap,