gpio: aspeed-sgpio: 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.

Link: https://lore.kernel.org/r/20250303-gpiochip-set-conversion-v1-15-1d5cceeebf8b@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: Bartosz Golaszewski

drivers/gpio/gpio-aspeed-sgpio.c

@@ -209,13 +209,13 @@ static int sgpio_set_value(struct gpio_chip *gc, unsigned int offset, int val)
 	return 0;
 }
 
-static void aspeed_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
+static int aspeed_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
 {
 	struct aspeed_sgpio *gpio = gpiochip_get_data(gc);
 
 	guard(raw_spinlock_irqsave)(&gpio->lock);
 
-	sgpio_set_value(gc, offset, val);
+	return sgpio_set_value(gc, offset, val);
 }
 
 static int aspeed_sgpio_dir_in(struct gpio_chip *gc, unsigned int offset)
@@ -596,7 +596,7 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev)
 	gpio->chip.request = NULL;
 	gpio->chip.free = NULL;
 	gpio->chip.get = aspeed_sgpio_get;
-	gpio->chip.set = aspeed_sgpio_set;
+	gpio->chip.set_rv = aspeed_sgpio_set;
 	gpio->chip.set_config = aspeed_sgpio_set_config;
 	gpio->chip.label = dev_name(&pdev->dev);
 	gpio->chip.base = -1;