gpio: tps65218: remove unneeded callbacks

GPIO core can handle output-only chips that don't implement the get()
and direction_input() callbacks. There's no need to provide dummy
implementation of the latter in the driver so drop it.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-9-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-tps65218.c b/drivers/gpio/gpio-tps65218.c
index d7d9d50dcddf432c0825246d8ff54a5c980b0ae4..68e4f0a19f4eb945b33e5992fdf30a29a40bfc1e 100644 (file)
--- a/drivers/gpio/gpio-tps65218.c
+++ b/drivers/gpio/gpio-tps65218.c
@@ -59,11 +59,6 @@ static int tps65218_gpio_output(struct gpio_chip *gc, unsigned offset,
        return 0;
 }
 
-static int tps65218_gpio_input(struct gpio_chip *gc, unsigned offset)
-{
-       return -EPERM;
-}
-
 static int tps65218_gpio_request(struct gpio_chip *gc, unsigned offset)
 {
        struct tps65218_gpio *tps65218_gpio = gpiochip_get_data(gc);
@@ -174,7 +169,6 @@ static const struct gpio_chip template_chip = {
        .owner                  = THIS_MODULE,
        .request                = tps65218_gpio_request,
        .direction_output       = tps65218_gpio_output,
-       .direction_input        = tps65218_gpio_input,
        .get                    = tps65218_gpio_get,
        .set                    = tps65218_gpio_set,
        .set_config             = tps65218_gpio_set_config,