[PATCH 09/28] sh-pfc: Make function GPIOs support optional

[Simon Horman]

From: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>

The target is to get rid of function GPIOs completely. To reach this,
make function GPIOs support optional by skipping the function GPIO chip
registration if no function GPIOS are defined in SoC data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
 drivers/pinctrl/sh-pfc/gpio.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index d7acb06..7a54ec7 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -384,6 +384,9 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
 	}
 
 	/* Register the function GPIOs chip. */
+	if (pfc->info->nr_func_gpios == 0)
+		return 0;
+
 	chip = sh_pfc_add_gpiochip(pfc, gpio_function_setup);
 	if (IS_ERR(chip))
 		return PTR_ERR(chip);
-- 
1.7.10.4