pinctrl: st: drop the wrapper around pinctrl_gpio_direction_input()

pinctrl_gpio_direction_input() now has the same signature as the
wrapper around it so we can drop it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/pinctrl-st.c

@@ -717,13 +717,6 @@ static void st_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	__st_gpio_set(bank, offset, value);
 }
 
-static int st_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
-{
-	pinctrl_gpio_direction_input(chip, offset);
-
-	return 0;
-}
-
 static int st_gpio_direction_output(struct gpio_chip *chip,
 	unsigned offset, int value)
 {
@@ -1330,7 +1323,7 @@ static int st_gpio_irq_request_resources(struct irq_data *d)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 
-	st_gpio_direction_input(gc, d->hwirq);
+	pinctrl_gpio_direction_input(gc, d->hwirq);
 
 	return gpiochip_reqres_irq(gc, d->hwirq);
 }
@@ -1488,7 +1481,7 @@ static const struct gpio_chip st_gpio_template = {
 	.free			= gpiochip_generic_free,
 	.get			= st_gpio_get,
 	.set			= st_gpio_set,
-	.direction_input	= st_gpio_direction_input,
+	.direction_input	= pinctrl_gpio_direction_input,
 	.direction_output	= st_gpio_direction_output,
 	.get_direction		= st_gpio_get_direction,
 	.ngpio			= ST_GPIO_PINS_PER_BANK,