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PM: sleep: call devfreq suspend/resume

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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>
This commit is contained in:
Lukasz Luba 2018-12-05 12:05:55 +01:00 committed by Rafael J. Wysocki
parent 1e2af254ef
commit 6e863844ad
1 changed files with 3 additions and 0 deletions
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3
drivers/base/power/main.c
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@ -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);