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ARM: EXYNOS4: Move S5P_CENTRAL_SEQ_CONFIGURATION setting for PM 

We need to balance between set and check S5P_CENTRAL_SEQ_CONFIGURATION
register in syscore_ops suspend/resume function when failure in enter
suspend mode. Moved this register setting for PM for the purpose of balancing.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Jaecheol Lee 2011-07-18 19:21:41 +09:00 committed by Kukjin Kim
parent e240ab1cfb
commit 12974e9f70
1 changed files with 14 additions and 8 deletions
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22
arch/arm/mach-exynos4/pm.c
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@ -209,14 +209,6 @@ static struct sleep_save exynos4_l2cc_save[] = {
void exynos4_cpu_suspend(void)
{
unsigned long tmp;
/* Setting Central Sequence Register for power down mode */
tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
tmp &= ~(S5P_CENTRAL_LOWPWR_CFG);
__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
outer_flush_all();
/* issue the standby signal into the pm unit. */
@ -299,6 +291,19 @@ static __init int exynos4_pm_drvinit(void)
}
arch_initcall(exynos4_pm_drvinit);
static int exynos4_pm_suspend(void)
{
unsigned long tmp;
/* Setting Central Sequence Register for power down mode */
tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
return 0;
}
static void exynos4_pm_resume(void)
{
unsigned long tmp;
@ -343,6 +348,7 @@ early_wakeup:
}
static struct syscore_ops exynos4_pm_syscore_ops = {
.suspend = exynos4_pm_suspend,
.resume = exynos4_pm_resume,
};