pinctrl: armada-37xx: 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/20250424-gpiochip-set-rv-pinctrl-part2-v1-10-504f91120b99@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/mvebu/pinctrl-armada-37xx.c

@@ -424,15 +424,12 @@ static int armada_37xx_gpio_direction_output(struct gpio_chip *chip,
 	mask = BIT(offset);
 
 	ret = regmap_update_bits(info->regmap, reg, mask, mask);
-
 	if (ret)
 		return ret;
 
 	reg = OUTPUT_VAL;
 	val = value ? mask : 0;
-	regmap_update_bits(info->regmap, reg, mask, val);
-
-	return 0;
+	return regmap_update_bits(info->regmap, reg, mask, val);
 }
 
 static int armada_37xx_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -449,8 +446,8 @@ static int armada_37xx_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return (val & mask) != 0;
 }
 
-static void armada_37xx_gpio_set(struct gpio_chip *chip, unsigned int offset,
-				 int value)
+static int armada_37xx_gpio_set(struct gpio_chip *chip, unsigned int offset,
+				int value)
 {
 	struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
 	unsigned int reg = OUTPUT_VAL;
@@ -460,7 +457,7 @@ static void armada_37xx_gpio_set(struct gpio_chip *chip, unsigned int offset,
 	mask = BIT(offset);
 	val = value ? mask : 0;
 
-	regmap_update_bits(info->regmap, reg, mask, val);
+	return regmap_update_bits(info->regmap, reg, mask, val);
 }
 
 static int armada_37xx_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
@@ -513,7 +510,7 @@ static const struct pinmux_ops armada_37xx_pmx_ops = {
 static const struct gpio_chip armada_37xx_gpiolib_chip = {
 	.request = gpiochip_generic_request,
 	.free = gpiochip_generic_free,
-	.set = armada_37xx_gpio_set,
+	.set_rv = armada_37xx_gpio_set,
 	.get = armada_37xx_gpio_get,
 	.get_direction	= armada_37xx_gpio_get_direction,
 	.direction_input = armada_37xx_gpio_direction_input,