Messages in this thread Patch in this message | | | From | Neil Zhang <> | Subject | [PATCH V2] GPIO: gpio-pxa: fix bug when get gpio value | Date | Wed, 26 Sep 2012 09:46:47 +0800 |
| |
We need to return 0 or 1 when get gpio value.
Signed-off-by: Neil Zhang <zhangwm@marvell.com> --- drivers/gpio/gpio-pxa.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index 9cac88a..3c9dc8c 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -269,7 +269,9 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip, static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset) { - return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset); + u32 gplr = readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET); + + return (gplr & (1 << offset)) ? 1 : 0; } static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- 1.7.4.1
| |