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

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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>
This commit is contained in:
Bartosz Golaszewski 2025-07-07 09:50:22 +02:00
parent 77ba4640cc
commit 79880eba2c
1 changed files with 7 additions and 7 deletions
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14
drivers/gpio/gpio-twl6040.c
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@ -37,13 +37,6 @@ static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset)
return GPIO_LINE_DIRECTION_OUT; 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, static int twl6040gpo_set(struct gpio_chip *chip, unsigned int offset,
int value) 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); 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 = { static struct gpio_chip twl6040gpo_chip = {
.label = "twl6040", .label = "twl6040",
.owner = THIS_MODULE, .owner = THIS_MODULE,