[PATCH] OMAP3 GPIO: Fix getting the value of the GPIO output pin

[Joonyoung Shim]

If the GPIO pin is output, must read the value from OMAP24XX_GPIO_DATAOUT
register in __omap_get_gpio_datain().

Signed-off-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
---

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index f856a90..296773a 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -428,7 +428,11 @@ static int __omap_get_gpio_datain(int gpio)
 #endif
 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
 	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_DATAIN;
+		if (__raw_readl(reg + OMAP24XX_GPIO_OE)
+					& (1 << get_gpio_index(gpio)))
+			reg += OMAP24XX_GPIO_DATAIN;
+		else
+			reg += OMAP24XX_GPIO_DATAOUT;
 		break;
 #endif
 	default:
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/