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| author |   Lukasz Luba <l.luba@partner.samsung.com> | 2018-12-05 12:05:55 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-01-02 23:07:41 +0100 |
| commit | 6e863844ad6effecac92a67a43b8467a8c2e129f (patch) | |
| tree | 180bcd4fd952927ca2c4e5c16757000f262d51a0 /drivers/base | |
| parent | Merge tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff) | |
| download | linux-dev-6e863844ad6effecac92a67a43b8467a8c2e129f.tar.xz linux-dev-6e863844ad6effecac92a67a43b8467a8c2e129f.zip | |
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>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 3 |
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); |