iio: dac: ad5592r: 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>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250409-gpiochip-set-rv-iio-v2-3-4b36428f39cb@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 32e63a1..ed7a3dd 100644 (file)
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -40,7 +40,8 @@ static int ad5592r_gpio_get(struct gpio_chip *chip, unsigned offset)
        return !!(val & BIT(offset));
 }
 
-static void ad5592r_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int ad5592r_gpio_set(struct gpio_chip *chip, unsigned int offset,
+                           int value)
 {
        struct ad5592r_state *st = gpiochip_get_data(chip);
 
@@ -51,7 +52,7 @@ static void ad5592r_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
        else
                st->gpio_val &= ~BIT(offset);
 
-       st->ops->reg_write(st, AD5592R_REG_GPIO_SET, st->gpio_val);
+       return st->ops->reg_write(st, AD5592R_REG_GPIO_SET, st->gpio_val);
 }
 
 static int ad5592r_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
@@ -128,7 +129,7 @@ static int ad5592r_gpio_init(struct ad5592r_state *st)
        st->gpiochip.direction_input = ad5592r_gpio_direction_input;
        st->gpiochip.direction_output = ad5592r_gpio_direction_output;
        st->gpiochip.get = ad5592r_gpio_get;
-       st->gpiochip.set = ad5592r_gpio_set;
+       st->gpiochip.set_rv = ad5592r_gpio_set;
        st->gpiochip.request = ad5592r_gpio_request;
        st->gpiochip.owner = THIS_MODULE;
        st->gpiochip.names = ad5592r_gpio_names;