[ARM] 4552/1: i.MX/MX1 GPIO output setup fix

The pins for GPIO should be provided as plain number
build as (GPIO_PORTx + pin_number). But to setup
the output GPIO_GIUS and GPIO_DR have to be specified
in mode to route right value to the pin.

This is a fix, it should go to 2.6.23

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c
index a58b678..c342595 100644 (file)
--- a/arch/arm/mach-imx/generic.c
+++ b/arch/arm/mach-imx/generic.c
@@ -138,7 +138,7 @@ EXPORT_SYMBOL(imx_gpio_direction_input);
 int imx_gpio_direction_output(unsigned gpio, int value)
 {
        imx_gpio_set_value(gpio, value);
 int imx_gpio_direction_output(unsigned gpio, int value)
 {
        imx_gpio_set_value(gpio, value);

-       imx_gpio_mode(gpio| GPIO_OUT);
+       imx_gpio_mode(gpio | GPIO_OUT | GPIO_GIUS | GPIO_DR);

        return 0;
 }
 
        return 0;
 }