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Commit 12974e9f authored by Jaecheol Lee's avatar Jaecheol Lee Committed by Kukjin Kim
Browse files

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: default avatarJaecheol Lee <jc.lee@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent e240ab1c

arch/arm/mach-exynos4/pm.c

+14 −8
Original line number Diff line number Diff line
@@ -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 @@ static void exynos4_pm_resume(void) 
}



static struct syscore_ops exynos4_pm_syscore_ops = {

	.suspend	= exynos4_pm_suspend,

	.resume		= exynos4_pm_resume,

};