From 0622b25bf071fd83c6eef6b61fb5f3f12a418528 Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Mon, 6 Jun 2011 13:38:17 -0700 Subject: [PATCH] GPIO: OMAP: fix setting IRQWAKEN bits for OMAP4 Setting the IRQWAKEN bit was overwriting previous IRQWAKEN bits, causing only the last bit set to take effect, resulting in lost wakeups when the GPIO controller is in idle. Replace direct writes to IRQWAKEN with MOD_REG_BIT calls to perform a read-modify-write on the register. Signed-off-by: Colin Cross Signed-off-by: Kevin Hilman --- drivers/gpio/gpio-omap.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 76709b03572e..5ad827a1a3e8 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -432,7 +432,6 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, { void __iomem *base = bank->base; u32 gpio_bit = 1 << gpio; - u32 val; if (cpu_is_omap44xx()) { MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit, @@ -455,15 +454,8 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, } if (likely(!(bank->non_wakeup_gpios & gpio_bit))) { if (cpu_is_omap44xx()) { - if (trigger != 0) - __raw_writel(1 << gpio, bank->base+ - OMAP4_GPIO_IRQWAKEN0); - else { - val = __raw_readl(bank->base + - OMAP4_GPIO_IRQWAKEN0); - __raw_writel(val & (~(1 << gpio)), bank->base + - OMAP4_GPIO_IRQWAKEN0); - } + MOD_REG_BIT(OMAP4_GPIO_IRQWAKEN0, gpio_bit, + trigger != 0); } else { /* * GPIO wakeup request can only be generated on edge