pwm: pca9685: Use new GPIO 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/20250408-gpiochip-set-rv-pwm-v1-1-61e5c3358a74@linaro.org
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>

diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c
index 5162f39916443d582d49eaa69e65f524bf9bd0c8..eb03ccd5b6883f29e3d6638da17c5592e978f1f3 100644 (file)
--- a/drivers/pwm/pwm-pca9685.c
+++ b/drivers/pwm/pwm-pca9685.c
@@ -263,12 +263,14 @@ static int pca9685_pwm_gpio_get(struct gpio_chip *gpio, unsigned int offset)
        return pca9685_pwm_get_duty(chip, offset) != 0;
 }
 
-static void pca9685_pwm_gpio_set(struct gpio_chip *gpio, unsigned int offset,
-                                int value)
+static int pca9685_pwm_gpio_set(struct gpio_chip *gpio, unsigned int offset,
+                               int value)
 {
        struct pwm_chip *chip = gpiochip_get_data(gpio);
 
        pca9685_pwm_set_duty(chip, offset, value ? PCA9685_COUNTER_RANGE : 0);
+
+       return 0;
 }
 
 static void pca9685_pwm_gpio_free(struct gpio_chip *gpio, unsigned int offset)
@@ -321,7 +323,7 @@ static int pca9685_pwm_gpio_probe(struct pwm_chip *chip)
        pca->gpio.direction_input = pca9685_pwm_gpio_direction_input;
        pca->gpio.direction_output = pca9685_pwm_gpio_direction_output;
        pca->gpio.get = pca9685_pwm_gpio_get;
-       pca->gpio.set = pca9685_pwm_gpio_set;
+       pca->gpio.set_rv = pca9685_pwm_gpio_set;
        pca->gpio.base = -1;
        pca->gpio.ngpio = PCA9685_MAXCHAN;
        pca->gpio.can_sleep = true;