gpio: renesas: Simplify .request/.rfree callbacks

Remove identify wrapper functions.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 9ffb4a5..d6cfbd2 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -130,20 +130,9 @@
 		return GPIOF_INPUT;
 }
 
-static int rcar_gpio_request(struct udevice *dev, unsigned offset,
-			     const char *label)
-{
-	return pinctrl_gpio_request(dev, offset, label);
-}
-
-static int rcar_gpio_free(struct udevice *dev, unsigned offset)
-{
-	return pinctrl_gpio_free(dev, offset);
-}
-
 static const struct dm_gpio_ops rcar_gpio_ops = {
-	.request		= rcar_gpio_request,
-	.rfree			= rcar_gpio_free,
+	.request		= pinctrl_gpio_request,
+	.rfree			= pinctrl_gpio_free,
 	.direction_input	= rcar_gpio_direction_input,
 	.direction_output	= rcar_gpio_direction_output,
 	.get_value		= rcar_gpio_get_value,