diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2025-04-07 09:13:21 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2025-04-17 13:58:55 +0200 |
| commit | f74195d4b245a188c424237a0375993c8e2865c7 (patch) | |
| tree | 4c06e0cd6ed17f99d6f375dffe7d82868795326e | |
| parent | f3592d252f77e50c737f91389c3a6b6926f82fc3 (diff) | |
gpio: ich: use new line value setter callbacks
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250407-gpiochip-set-rv-gpio-part1-v1-12-78399683ca38@linaro.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
| -rw-r--r-- | drivers/gpio/gpio-ich.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c index 0be9285efebc..67089b2423d8 100644 --- a/drivers/gpio/gpio-ich.c +++ b/drivers/gpio/gpio-ich.c @@ -175,12 +175,16 @@ static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned int nr) static int ichx_gpio_direction_output(struct gpio_chip *gpio, unsigned int nr, int val) { + int ret; + /* Disable blink hardware which is available for GPIOs from 0 to 31. */ if (nr < 32 && ichx_priv.desc->have_blink) ichx_write_bit(GPO_BLINK, nr, 0, 0); /* Set GPIO output value. */ - ichx_write_bit(GPIO_LVL, nr, val, 0); + ret = ichx_write_bit(GPIO_LVL, nr, val, 0); + if (ret) + return ret; /* * Try setting pin as an output and verify it worked since many pins @@ -252,9 +256,9 @@ static int ich6_gpio_request(struct gpio_chip *chip, unsigned int nr) return ichx_gpio_request(chip, nr); } -static void ichx_gpio_set(struct gpio_chip *chip, unsigned int nr, int val) +static int ichx_gpio_set(struct gpio_chip *chip, unsigned int nr, int val) { - ichx_write_bit(GPIO_LVL, nr, val, 0); + return ichx_write_bit(GPIO_LVL, nr, val, 0); } static void ichx_gpiolib_setup(struct gpio_chip *chip) @@ -269,7 +273,7 @@ static void ichx_gpiolib_setup(struct gpio_chip *chip) chip->get = ichx_priv.desc->get ? ichx_priv.desc->get : ichx_gpio_get; - chip->set = ichx_gpio_set; + chip->set_rv = ichx_gpio_set; chip->get_direction = ichx_gpio_get_direction; chip->direction_input = ichx_gpio_direction_input; chip->direction_output = ichx_gpio_direction_output; |