gpio: xtensa: 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.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-15-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-xtensa.c b/drivers/gpio/gpio-xtensa.c
index 341b691ac2345b93320a6e8b933444d26dcf50e6..e7ff3c60324dcd11aa03348684bb4743a771729d 100644 (file)
--- a/drivers/gpio/gpio-xtensa.c
+++ b/drivers/gpio/gpio-xtensa.c
@@ -103,7 +103,7 @@ static int xtensa_expstate_get_value(struct gpio_chip *gc, unsigned offset)
        return !!(expstate & BIT(offset));
 }
 
-static void xtensa_expstate_set_value(struct gpio_chip *gc, unsigned offset,
+static int xtensa_expstate_set_value(struct gpio_chip *gc, unsigned int offset,
                                     int value)
 {
        unsigned long flags, saved_cpenable;
@@ -114,6 +114,8 @@ static void xtensa_expstate_set_value(struct gpio_chip *gc, unsigned offset,
        __asm__ __volatile__("wrmsk_expstate %0, %1"
                             :: "a" (val), "a" (mask));
        disable_cp(flags, saved_cpenable);
+
+       return 0;
 }
 
 static struct gpio_chip impwire_chip = {
@@ -130,7 +132,7 @@ static struct gpio_chip expstate_chip = {
        .ngpio          = 32,
        .get_direction  = xtensa_expstate_get_direction,
        .get            = xtensa_expstate_get_value,
-       .set            = xtensa_expstate_set_value,
+       .set_rv         = xtensa_expstate_set_value,
 };
 
 static int xtensa_gpio_probe(struct platform_device *pdev)