pinctrl: sh-pfc: Remove empty gpio_function_free()

gpio_chip.free() is optional, and can just be left unimplemented.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index b380e3f17b121bbb0334c5fc76437fe248a5acf5..e46439030914ad13bdc25f30c242d119a63deedc 100644 (file)
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -286,17 +286,12 @@ static int gpio_function_request(struct gpio_chip *gc, unsigned offset)
        return ret;
 }
 
-static void gpio_function_free(struct gpio_chip *gc, unsigned offset)
-{
-}
-
 static int gpio_function_setup(struct sh_pfc_chip *chip)
 {
        struct sh_pfc *pfc = chip->pfc;
        struct gpio_chip *gc = &chip->gpio_chip;
 
        gc->request = gpio_function_request;
-       gc->free = gpio_function_free;
 
        gc->label = pfc->info->name;
        gc->owner = THIS_MODULE;