Techwizz/kernel-fxtec-pro1x
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mxc: first set GPIO level, then switch direction to output

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Make sure not to create spurious pulses on GPIOs, when configuring them as
output: first set required level, then switch direction.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Guennadi Liakhovetski 2009-02-12 14:27:22 +01:00 committed by Sascha Hauer
parent 6bbdbf2f95
commit 999981d943
1 changed files with 1 additions and 1 deletions
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2
arch/arm/plat-mxc/gpio.c
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@ -200,8 +200,8 @@ static int mxc_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int mxc_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
_set_gpio_direction(chip, offset, 1);
mxc_gpio_set(chip, offset, value);
_set_gpio_direction(chip, offset, 1);
return 0;
}