gpio: xtensa: remove unneeded .set() callback

GPIO core deals just fine with input-only controllers not implementing
the .set() callback. Remove the unneeded dummy implementation.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-14-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 c8af34a6368f4f69f9960fff7f8c27a2c8ddea8b..341b691ac2345b93320a6e8b933444d26dcf50e6 100644 (file)
--- a/drivers/gpio/gpio-xtensa.c
+++ b/drivers/gpio/gpio-xtensa.c
@@ -86,12 +86,6 @@ static int xtensa_impwire_get_value(struct gpio_chip *gc, unsigned offset)
        return !!(impwire & BIT(offset));
 }
 
-static void xtensa_impwire_set_value(struct gpio_chip *gc, unsigned offset,
-                                   int value)
-{
-       BUG(); /* output only; should never be called */
-}
-
 static int xtensa_expstate_get_direction(struct gpio_chip *gc, unsigned offset)
 {
        return GPIO_LINE_DIRECTION_OUT; /* output only */
@@ -128,7 +122,6 @@ static struct gpio_chip impwire_chip = {
        .ngpio          = 32,
        .get_direction  = xtensa_impwire_get_direction,
        .get            = xtensa_impwire_get_value,
-       .set            = xtensa_impwire_set_value,
 };
 
 static struct gpio_chip expstate_chip = {