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authorLukasz Luba <l.luba@partner.samsung.com>2018-12-05 12:05:55 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-01-02 23:07:41 +0100
commit6e863844ad6effecac92a67a43b8467a8c2e129f (patch)
tree180bcd4fd952927ca2c4e5c16757000f262d51a0
parent1e2af254ef130e37d9fb3cb1bc9bfbf6ea184b4a (diff)
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PM: sleep: call devfreq suspend/resume
Devfreq framework supports suspend of its devices. Call the the devfreq interface and allow devfreq devices preserve/restore their states during suspend/resume. Suggested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/base/power/main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index a690fd400260..0992e67e862b 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -32,6 +32,7 @@
#include <trace/events/power.h>
#include <linux/cpufreq.h>
#include <linux/cpuidle.h>
+#include <linux/devfreq.h>
#include <linux/timer.h>
#include "../base.h"
@@ -1078,6 +1079,7 @@ void dpm_resume(pm_message_t state)
dpm_show_time(starttime, state, 0, NULL);
cpufreq_resume();
+ devfreq_resume();
trace_suspend_resume(TPS("dpm_resume"), state.event, false);
}
@@ -1852,6 +1854,7 @@ int dpm_suspend(pm_message_t state)
trace_suspend_resume(TPS("dpm_suspend"), state.event, true);
might_sleep();
+ devfreq_suspend();
cpufreq_suspend();
mutex_lock(&dpm_list_mtx);