From: Changhwan Youn <chaos.youn@samsung.com>
Date: Fri, 2 Sep 2011 05:10:52 +0000 (+0900)
Subject: ARM: EXYNOS4: restart clocksource while system resumes
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=aa421c13a9e318a75b42d9dd2eb85cc73d8aab6b;p=linux-beck.git

ARM: EXYNOS4: restart clocksource while system resumes

System resume can't be completed because mct-frc isn't restarted
after system suspends. This patch restarts mct-frc during system
resume.

Reported-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---

diff --git a/arch/arm/mach-exynos4/mct.c b/arch/arm/mach-exynos4/mct.c
index f3638fa73e62..ddd86864fb83 100644
--- a/arch/arm/mach-exynos4/mct.c
+++ b/arch/arm/mach-exynos4/mct.c
@@ -132,12 +132,18 @@ static cycle_t exynos4_frc_read(struct clocksource *cs)
 	return ((cycle_t)hi << 32) | lo;
 }
 
+static void exynos4_frc_resume(struct clocksource *cs)
+{
+	exynos4_mct_frc_start(0, 0);
+}
+
 struct clocksource mct_frc = {
 	.name		= "mct-frc",
 	.rating		= 400,
 	.read		= exynos4_frc_read,
 	.mask		= CLOCKSOURCE_MASK(64),
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+	.resume		= exynos4_frc_resume,
 };
 
 static void __init exynos4_clocksource_init(void)