pinctrl: renesas: rza2: 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 <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/20250611-gpiochip-set-rv-pinctrl-renesas-v1-5-ad169a794ef0@linaro.org
Signed-off-by: Geert Uytterhoeven <[email protected]>

Author: Bartosz Golaszewski

drivers/pinctrl/renesas/pinctrl-rza2.c

@@ -172,8 +172,7 @@ static int rza2_chip_get(struct gpio_chip *chip, unsigned int offset)
 	return !!(readb(priv->base + RZA2_PIDR(port)) & BIT(pin));
 }
 
-static void rza2_chip_set(struct gpio_chip *chip, unsigned int offset,
-			  int value)
+static int rza2_chip_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
 	struct rza2_pinctrl_priv *priv = gpiochip_get_data(chip);
 	u8 port = RZA2_PIN_ID_TO_PORT(offset);
@@ -188,6 +187,8 @@ static void rza2_chip_set(struct gpio_chip *chip, unsigned int offset,
 		new_value &= ~BIT(pin);
 
 	writeb(new_value, priv->base + RZA2_PODR(port));
+
+	return 0;
 }
 
 static int rza2_chip_direction_output(struct gpio_chip *chip,
@@ -236,7 +237,7 @@ static struct gpio_chip chip = {
 	.direction_input = rza2_chip_direction_input,
 	.direction_output = rza2_chip_direction_output,
 	.get = rza2_chip_get,
-	.set = rza2_chip_set,
+	.set_rv = rza2_chip_set,
 };
 
 static int rza2_gpio_register(struct rza2_pinctrl_priv *priv)