From: Tomasz Figa <t.figa@samsung.com>
Date: Fri, 17 May 2013 16:24:28 +0000 (+0200)
Subject: ARM: EXYNOS: Fix EINT wake-up mask configuration when pinctrl is used
X-Git-Tag: firefly_0821_release~3680^2~396^2~6
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b134dc3feaa5136b376c7d2658bbe156bea19e63;p=firefly-linux-kernel-4.4.55.git

ARM: EXYNOS: Fix EINT wake-up mask configuration when pinctrl is used

On DT-enabled systems pinctrl-exynos driver is responsible for handling
of wake-up EINT interrupts. This patch adjusts wake-up mask
configuration code to take wake-up mask value from pinctrl-exynos driver
on DT-enabled systems.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---

diff --git a/arch/arm/mach-exynos/include/mach/pm-core.h b/arch/arm/mach-exynos/include/mach/pm-core.h
index 7dbbfec13ea5..296090e7f423 100644
--- a/arch/arm/mach-exynos/include/mach/pm-core.h
+++ b/arch/arm/mach-exynos/include/mach/pm-core.h
@@ -18,8 +18,15 @@
 #ifndef __ASM_ARCH_PM_CORE_H
 #define __ASM_ARCH_PM_CORE_H __FILE__
 
+#include <linux/of.h>
 #include <mach/regs-pmu.h>
 
+#ifdef CONFIG_PINCTRL_EXYNOS
+extern u32 exynos_get_eint_wake_mask(void);
+#else
+static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; }
+#endif
+
 static inline void s3c_pm_debug_init_uart(void)
 {
 	/* nothing here yet */
@@ -27,7 +34,12 @@ static inline void s3c_pm_debug_init_uart(void)
 
 static inline void s3c_pm_arch_prepare_irqs(void)
 {
-	__raw_writel(s3c_irqwake_eintmask, S5P_EINT_WAKEUP_MASK);
+	u32 eintmask = s3c_irqwake_eintmask;
+
+	if (of_have_populated_dt())
+		eintmask = exynos_get_eint_wake_mask();
+
+	__raw_writel(eintmask, S5P_EINT_WAKEUP_MASK);
 	__raw_writel(s3c_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK);
 }