gpio: altera-a10sr: 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.

Link: https://lore.kernel.org/r/20250303-gpiochip-set-conversion-v1-7-1d5cceeebf8b@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: Bartosz Golaszewski

drivers/gpio/gpio-altera-a10sr.c

@@ -35,15 +35,15 @@ static int altr_a10sr_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return !!(val & BIT(offset - ALTR_A10SR_LED_VALID_SHIFT));
 }
 
-static void altr_a10sr_gpio_set(struct gpio_chip *chip, unsigned int offset,
-				int value)
+static int altr_a10sr_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			       int value)
 {
 	struct altr_a10sr_gpio *gpio = gpiochip_get_data(chip);
 
-	regmap_update_bits(gpio->regmap, ALTR_A10SR_LED_REG,
-			   BIT(ALTR_A10SR_LED_VALID_SHIFT + offset),
-			   value ? BIT(ALTR_A10SR_LED_VALID_SHIFT + offset)
-			   : 0);
+	return regmap_update_bits(gpio->regmap, ALTR_A10SR_LED_REG,
+				  BIT(ALTR_A10SR_LED_VALID_SHIFT + offset),
+				  value ?
+				  BIT(ALTR_A10SR_LED_VALID_SHIFT + offset) : 0);
 }
 
 static int altr_a10sr_gpio_direction_input(struct gpio_chip *gc,
@@ -69,7 +69,7 @@ static const struct gpio_chip altr_a10sr_gc = {
 	.label = "altr_a10sr_gpio",
 	.owner = THIS_MODULE,
 	.get = altr_a10sr_gpio_get,
-	.set = altr_a10sr_gpio_set,
+	.set_rv = altr_a10sr_gpio_set,
 	.direction_input = altr_a10sr_gpio_direction_input,
 	.direction_output = altr_a10sr_gpio_direction_output,
 	.can_sleep = true,