gpio: loongson: 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: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-11-b22245cde81a@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-loongson.c b/drivers/gpio/gpio-loongson.c
index a42145873cc92ab1628ed11b354cb648f5a09150..8f3668169ebf22dd5c655edebf8e734e7b0188c4 100644 (file)
--- a/drivers/gpio/gpio-loongson.c
+++ b/drivers/gpio/gpio-loongson.c
@@ -48,8 +48,8 @@ static int loongson_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
        return !!(val & BIT(gpio + LOONGSON_GPIO_IN_OFFSET));
 }
 
-static void loongson_gpio_set_value(struct gpio_chip *chip,
-               unsigned gpio, int value)
+static int loongson_gpio_set_value(struct gpio_chip *chip, unsigned int gpio,
+                                  int value)
 {
        u32 val;
 
@@ -61,6 +61,8 @@ static void loongson_gpio_set_value(struct gpio_chip *chip,
                val &= ~BIT(gpio);
        LOONGSON_GPIODATA = val;
        spin_unlock(&gpio_lock);
+
+       return 0;
 }
 
 static int loongson_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
@@ -104,7 +106,7 @@ static int loongson_gpio_probe(struct platform_device *pdev)
        gc->base = 0;
        gc->ngpio = LOONGSON_N_GPIO;
        gc->get = loongson_gpio_get_value;
-       gc->set = loongson_gpio_set_value;
+       gc->set_rv = loongson_gpio_set_value;
        gc->direction_input = loongson_gpio_direction_input;
        gc->direction_output = loongson_gpio_direction_output;