The check with register value and mask should be & rather than &&. While at it, also use "unsigned int" for value variable because regmap_read() takes unsigned int *val argument. Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx> --- drivers/gpio/gpio-wcd934x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-wcd934x.c b/drivers/gpio/gpio-wcd934x.c index 9d4ec8941b9b..1cbce5990855 100644 --- a/drivers/gpio/gpio-wcd934x.c +++ b/drivers/gpio/gpio-wcd934x.c @@ -57,11 +57,11 @@ static int wcd_gpio_direction_output(struct gpio_chip *chip, unsigned int pin, static int wcd_gpio_get(struct gpio_chip *chip, unsigned int pin) { struct wcd_gpio_data *data = gpiochip_get_data(chip); - int value; + unsigned int value; regmap_read(data->map, WCD_REG_VAL_CTL_OFFSET, &value); - return !!(value && WCD_PIN_MASK(pin)); + return !!(value & WCD_PIN_MASK(pin)); } static void wcd_gpio_set(struct gpio_chip *chip, unsigned int pin, int val) -- 2.20.1