pinctrl: axp209: 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: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/20250424-gpiochip-set-rv-pinctrl-part2-v1-2-504f91120b99@linaro.org
[Drop unnecessary curly braces]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/pinctrl-axp209.c

@@ -192,34 +192,30 @@ static int axp20x_gpio_get_direction(struct gpio_chip *chip,
 static int axp20x_gpio_output(struct gpio_chip *chip, unsigned int offset,
 			      int value)
 {
-	chip->set(chip, offset, value);
-
-	return 0;
+	return chip->set_rv(chip, offset, value);
 }
 
-static void axp20x_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			    int value)
+static int axp20x_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
 {
 	struct axp20x_pctl *pctl = gpiochip_get_data(chip);
 	int reg;
 
 	/* AXP209 has GPIO3 status sharing the settings register */
-	if (offset == 3) {
-		regmap_update_bits(pctl->regmap, AXP20X_GPIO3_CTRL,
-				   AXP20X_GPIO3_FUNCTIONS,
-				   value ? AXP20X_GPIO3_FUNCTION_OUT_HIGH :
-				   AXP20X_GPIO3_FUNCTION_OUT_LOW);
-		return;
-	}
+	if (offset == 3)
+		return regmap_update_bits(pctl->regmap, AXP20X_GPIO3_CTRL,
+					  AXP20X_GPIO3_FUNCTIONS,
+					  value ?
+						AXP20X_GPIO3_FUNCTION_OUT_HIGH :
+						AXP20X_GPIO3_FUNCTION_OUT_LOW);
 
 	reg = axp20x_gpio_get_reg(offset);
 	if (reg < 0)
-		return;
+		return reg;
 
-	regmap_update_bits(pctl->regmap, reg,
-			   AXP20X_GPIO_FUNCTIONS,
-			   value ? AXP20X_GPIO_FUNCTION_OUT_HIGH :
-			   AXP20X_GPIO_FUNCTION_OUT_LOW);
+	return regmap_update_bits(pctl->regmap, reg, AXP20X_GPIO_FUNCTIONS,
+				  value ? AXP20X_GPIO_FUNCTION_OUT_HIGH :
+					  AXP20X_GPIO_FUNCTION_OUT_LOW);
 }
 
 static int axp20x_pmx_set(struct pinctrl_dev *pctldev, unsigned int offset,
@@ -229,12 +225,11 @@ static int axp20x_pmx_set(struct pinctrl_dev *pctldev, unsigned int offset,
 	int reg;
 
 	/* AXP209 GPIO3 settings have a different layout */
-	if (offset == 3) {
+	if (offset == 3)
 		return regmap_update_bits(pctl->regmap, AXP20X_GPIO3_CTRL,
 				   AXP20X_GPIO3_FUNCTIONS,
 				   config == AXP20X_MUX_GPIO_OUT ? AXP20X_GPIO3_FUNCTION_OUT_LOW :
 				   AXP20X_GPIO3_FUNCTION_INPUT);
-	}
 
 	reg = axp20x_gpio_get_reg(offset);
 	if (reg < 0)
@@ -468,7 +463,7 @@ static int axp20x_pctl_probe(struct platform_device *pdev)
 	pctl->chip.owner		= THIS_MODULE;
 	pctl->chip.get			= axp20x_gpio_get;
 	pctl->chip.get_direction	= axp20x_gpio_get_direction;
-	pctl->chip.set			= axp20x_gpio_set;
+	pctl->chip.set_rv		= axp20x_gpio_set;
 	pctl->chip.direction_input	= pinctrl_gpio_direction_input;
 	pctl->chip.direction_output	= axp20x_gpio_output;