Extra omap code in linux-omap tree

[linux-2.6-omap-h63xx.git] / arch / arm / plat-omap / gpio.c

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index d3fa41e3d8c5a79235eb687dc4dc9ae92f330b77..17d7afe42b83efce507a8112af98d4de8280d02a 100644 (file)
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -758,8 +758,12 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
 
        /* Workaround for clearing DSP GPIO interrupts to allow retention */
 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
+       reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2;
        if (cpu_is_omap24xx() || cpu_is_omap34xx())
-               __raw_writel(gpio_mask, bank->base + OMAP24XX_GPIO_IRQSTATUS2);
+               __raw_writel(gpio_mask, reg);
+
+       /* Flush posted write for the irq status to avoid spurious interrupts */
+       __raw_readl(reg);
 #endif
 }
 
@@ -921,13 +925,10 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
        case METHOD_MPUIO:
        case METHOD_GPIO_1610:
                spin_lock_irqsave(&bank->lock, flags);
-               if (enable) {
+               if (enable)
                        bank->suspend_wakeup |= (1 << gpio);
-                       enable_irq_wake(bank->irq);
-               } else {
-                       disable_irq_wake(bank->irq);
+               else
                        bank->suspend_wakeup &= ~(1 << gpio);
-               }
                spin_unlock_irqrestore(&bank->lock, flags);
                return 0;
 #endif
@@ -940,13 +941,10 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
                        return -EINVAL;
                }
                spin_lock_irqsave(&bank->lock, flags);
-               if (enable) {
+               if (enable)
                        bank->suspend_wakeup |= (1 << gpio);
-                       enable_irq_wake(bank->irq);
-               } else {
-                       disable_irq_wake(bank->irq);
+               else
                        bank->suspend_wakeup &= ~(1 << gpio);
-               }
                spin_unlock_irqrestore(&bank->lock, flags);
                return 0;
 #endif