The direction_output callback of the gpio_chip structure is supposed to set the output direction but also to set the value of the gpio. For the armada-37xx driver this callback acted as the gpio_set_direction callback for the pinctrl.

This patch fixes the behavior of the direction_output callback by also applying the value received as parameter.

Cc: stable@vger.kernel.org Fixes: 5715092a458c ("pinctrl: armada-37xx: Add gpio support") Reported-by: Alexandre Belloni alexandre.belloni@free-electrons.com Signed-off-by: Gregory CLEMENT gregory.clement@free-electrons.com --- drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c index 71b944748304..c5fe7d4a9065 100644 --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c @@ -408,12 +408,21 @@ static int armada_37xx_gpio_direction_output(struct gpio_chip *chip, { struct armada_37xx_pinctrl *info = gpiochip_get_data(chip); unsigned int reg = OUTPUT_EN; - unsigned int mask; + unsigned int mask, val, ret;

armada_37xx_update_reg(&reg, offset); mask = BIT(offset);

- return regmap_update_bits(info->regmap, reg, mask, mask); + ret = regmap_update_bits(info->regmap, reg, mask, mask); + + if (ret) + return ret; + + reg = OUTPUT_VAL; + val = value ? mask : 0; + regmap_update_bits(info->regmap, reg, mask, val); + + return 0; }

static int armada_37xx_gpio_get(struct gpio_chip *chip, unsigned int offset)