linux-kernel - [PATCH 2/4] cpufreq: exynos: Consider hibernation in pm notifier

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Date:	Tue, 19 Nov 2013 22:29:18 +0900
From:	Jonghwan Choi <jhbird.choi@...il.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Kukjin Kim <kgene.kim@...sung.com>
Cc:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	Jonghwan Choi <jhbird.choi@...sung.com>
Subject: [PATCH 2/4] cpufreq: exynos: Consider hibernation in pm notifier

Frequency lock should be considered in suspend/hibernation.

Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 drivers/cpufreq/exynos-cpufreq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index f3c2287..cd05b0a 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -187,6 +187,7 @@ static int exynos_cpufreq_pm_notifier(struct notifier_block *notifier,
 	int ret;
 
 	switch (pm_event) {
+	case PM_HIBERNATION_PREPARE:
 	case PM_SUSPEND_PREPARE:
 		mutex_lock(&cpufreq_lock);
 		frequency_locked = true;
@@ -198,6 +199,8 @@ static int exynos_cpufreq_pm_notifier(struct notifier_block *notifier,
 
 		break;
 
+	case PM_POST_HIBERNATION:
+	case PM_POST_RESTORE:
 	case PM_POST_SUSPEND:
 		mutex_lock(&cpufreq_lock);
 		frequency_locked = false;
-- 
1.8.1.2

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