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

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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>
This commit is contained in:
Pavel Pisa 2007-08-20 21:39:41 +01:00 committed by Russell King
parent 7b1bc03e80
commit a228d6e7ed
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-imx/generic.c
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@ -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);
imx_gpio_mode(gpio| GPIO_OUT);
imx_gpio_mode(gpio | GPIO_OUT | GPIO_GIUS | GPIO_DR);
return 0;
}