gpio: arizona: 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.

Reviewed-by: Richard Fitzgerald <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/gpio/gpio-arizona.c

···
 				  ARIZONA_GPN_DIR | ARIZONA_GPN_LVL, value);
 }
 
-static void arizona_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int arizona_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			    int value)
 {
 	struct arizona_gpio *arizona_gpio = gpiochip_get_data(chip);
 	struct arizona *arizona = arizona_gpio->arizona;
···
 	if (value)
 		value = ARIZONA_GPN_LVL;
 
-	regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,
-			   ARIZONA_GPN_LVL, value);
+	return regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,
+				  ARIZONA_GPN_LVL, value);
 }
 
 static const struct gpio_chip template_chip = {
···
 	.direction_input	= arizona_gpio_direction_in,
 	.get			= arizona_gpio_get,
 	.direction_output	= arizona_gpio_direction_out,
-	.set			= arizona_gpio_set,
+	.set_rv			= arizona_gpio_set,
 	.can_sleep		= true,
 };