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-rw-r--r--arch/arm/plat-omap/gpio.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 210a1c04555..17d7afe42b8 100644
--- 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
}