[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
--- a/arch/arm/mach-imx/generic.c
+++ b/arch/arm/mach-imx/generic.c
@@ -138,7 +138,7 @@
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;
}