diff options
| -rw-r--r-- | drivers/gpio/gpio-rcar.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index b4ca450947b8..6b78ad96d3d4 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -214,7 +214,14 @@ static int gpio_rcar_direction_input(struct gpio_chip *chip, unsigned offset) static int gpio_rcar_get(struct gpio_chip *chip, unsigned offset) { - return (int)(gpio_rcar_read(gpio_to_priv(chip), INDT) & BIT(offset)); + u32 bit = BIT(offset); + + /* testing on r8a7790 shows that INDT does not show correct pin state + * when configured as output, so use OUTDT in case of output pins */ + if (gpio_rcar_read(gpio_to_priv(chip), INOUTSEL) & bit) + return (int)(gpio_rcar_read(gpio_to_priv(chip), OUTDT) & bit); + else + return (int)(gpio_rcar_read(gpio_to_priv(chip), INDT) & bit); } static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value) |