pinctrl: samsung: 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-v1-12-504f91120b99@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/samsung/pinctrl-samsung.c

@@ -570,22 +570,27 @@ static void samsung_gpio_set_value(struct gpio_chip *gc,
 }
 
 /* gpiolib gpio_set callback function */
-static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+static int samsung_gpio_set(struct gpio_chip *gc, unsigned int offset,
+			    int value)
 {
 	struct samsung_pin_bank *bank = gpiochip_get_data(gc);
 	struct samsung_pinctrl_drv_data *drvdata = bank->drvdata;
 	unsigned long flags;
+	int ret;
 
-	if (clk_enable(drvdata->pclk)) {
+	ret = clk_enable(drvdata->pclk);
+	if (ret) {
 		dev_err(drvdata->dev, "failed to enable clock\n");
-		return;
+		return ret;
 	}
 
 	raw_spin_lock_irqsave(&bank->slock, flags);
 	samsung_gpio_set_value(gc, offset, value);
 	raw_spin_unlock_irqrestore(&bank->slock, flags);
 
 	clk_disable(drvdata->pclk);
+
+	return 0;
 }
 
 /* gpiolib gpio_get callback function */
@@ -1062,7 +1067,7 @@ static int samsung_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
 static const struct gpio_chip samsung_gpiolib_chip = {
 	.request = gpiochip_generic_request,
 	.free = gpiochip_generic_free,
-	.set = samsung_gpio_set,
+	.set_rv = samsung_gpio_set,
 	.get = samsung_gpio_get,
 	.direction_input = samsung_gpio_direction_input,
 	.direction_output = samsung_gpio_direction_output,