gpio: twl6040: set line value in .direction_out()

It's ok for a GPIO controller to be output-only but the .direction_out()
callback must also set the requested line value.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-9-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
index b9c0d54d12f43242444f12a2bd8b6988d1511466..b2196b62b528cd0a2df2c4a4c4869ad172d6e2cd 100644 (file)
--- a/drivers/gpio/gpio-twl6040.c
+++ b/drivers/gpio/gpio-twl6040.c
@@ -37,13 +37,6 @@ static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset)
        return GPIO_LINE_DIRECTION_OUT;
 }
 
-static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset,
-                                   int value)
-{
-       /* This only drives GPOs, and can't change direction */
-       return 0;
-}
-
 static int twl6040gpo_set(struct gpio_chip *chip, unsigned int offset,
                          int value)
 {
@@ -63,6 +56,13 @@ static int twl6040gpo_set(struct gpio_chip *chip, unsigned int offset,
        return twl6040_reg_write(twl6040, TWL6040_REG_GPOCTL, gpoctl);
 }
 
+static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned int offset,
+                                   int value)
+{
+       /* This only drives GPOs, and can't change direction */
+       return twl6040gpo_set(chip, offset, value);
+}
+
 static struct gpio_chip twl6040gpo_chip = {
        .label                  = "twl6040",
        .owner                  = THIS_MODULE,