linux-kernel - [PATCH 4/4] PM / devfreq: Consider hibernation in pm notifier

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Message-Id: <1384867831-15383-1-git-send-email-jhbird.choi@samsung.com>
Date:	Tue, 19 Nov 2013 22:30:31 +0900
From:	Jonghwan Choi <jhbird.choi@...il.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	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 4/4] PM / devfreq: Consider hibernation in pm notifier

Frequency lock should be considered in suspend/hibernation.

Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index a60da3c..bd672de0 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -268,6 +268,7 @@ static int exynos5_busfreq_int_pm_notifier_event(struct notifier_block *this,
 	int err = 0;
 
 	switch (event) {
+	case PM_HIBERNATION_PREPARE:
 	case PM_SUSPEND_PREPARE:
 		/* Set Fastest and Deactivate DVFS */
 		mutex_lock(&data->lock);
@@ -300,6 +301,7 @@ unlock:
 		if (err)
 			return NOTIFY_BAD;
 		return NOTIFY_OK;
+	case PM_POST_HIBERNATION:
 	case PM_POST_RESTORE:
 	case PM_POST_SUSPEND:
 		/* Reactivate */
-- 
1.8.1.2

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