ARM: EXYNOS4: Support suspend/resume for EXYNOS4212

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos4/pm.c b/arch/arm/mach-exynos4/pm.c
index bc6ca9482de1..6e59c8398a49 100644
--- a/arch/arm/mach-exynos4/pm.c
+++ b/arch/arm/mach-exynos4/pm.c
@@ -404,6 +404,13 @@ static int exynos4_pm_suspend(void)
         tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
         __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
 
+        if (soc_is_exynos4212()) {
+                tmp = __raw_readl(S5P_CENTRAL_SEQ_OPTION);
+                tmp &= ~(S5P_USE_STANDBYWFI_ISP_ARM |
+                         S5P_USE_STANDBYWFE_ISP_ARM);
+                __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
+        }
+
         /* Save Power control register */
         asm ("mrc p15, 0, %0, c15, c0, 0"
              : "=r" (tmp) : : "cc");