From: Lukasz Majewski <l.majewski@samsung.com>
Date: Fri, 11 Apr 2014 11:52:09 +0000 (+0200)
Subject: cpuidle:AFTR: Enable STANDBY_WFI0 and STANDBY_WFE0 for cpu0 in AFTR mode
X-Git-Tag: submit/tizen/20141121.110247~2495
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b4bd5a8ee514f1573fdd4ec00f7b77d623dedbf5;p=platform%2Fkernel%2Flinux-3.10.git

cpuidle:AFTR: Enable STANDBY_WFI0 and STANDBY_WFE0 for cpu0 in AFTR mode

Enabling of CORE0 idle state is based on the state of STANDBYWFI/STANDBYWFE
internal signal.

Change-Id: I43675fa312ce879f3741644057991bdb33f6cd55
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
---

diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 11c3db7..ca26770 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -107,6 +107,10 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
 {
 	unsigned long tmp;
 
+	if (soc_is_exynos4412())
+		__raw_writel(S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0,
+			     S5P_CENTRAL_SEQ_OPTION);
+
 	exynos4_set_wakeupmask();
 
 	/* Set value of power down register for aftr mode */