* [PATCH 1/4] cpufreq: s5pv210: Consider hibernation in pm notifier
@ 2013-11-19 13:28 Jonghwan Choi
0 siblings, 0 replies; only message in thread
From: Jonghwan Choi @ 2013-11-19 13:28 UTC (permalink / raw)
To: Rafael J. Wysocki, Viresh Kumar; +Cc: linux-kernel, Jonghwan Choi
Frequency lock should be considered in suspend/hibernation.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
---
drivers/cpufreq/s5pv210-cpufreq.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index e3973da..bfbb09e 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -526,6 +526,7 @@ static int s5pv210_cpufreq_notifier_event(struct notifier_block *this,
int ret;
switch (event) {
+ case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
if (ret < 0)
@@ -534,6 +535,7 @@ static int s5pv210_cpufreq_notifier_event(struct notifier_block *this,
/* Disable updation of cpu frequency */
no_cpufreq_access = true;
return NOTIFY_OK;
+ case PM_POST_HIBERNATION:
case PM_POST_RESTORE:
case PM_POST_SUSPEND:
/* Enable updation of cpu frequency */
--
1.8.1.2
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