[PATCH -next] pinctrl: samsung: fix build error without CONFIG_OF_GPIO

[Chen Zhou <chenzhou10@xxxxxxxxxx>]

If CONFIG_OF_GPIO is n, build fails:

drivers/pinctrl/samsung/pinctrl-samsung.c: In function samsung_gpiolib_register:
drivers/pinctrl/samsung/pinctrl-samsung.c:969:5: error: struct gpio_chip has no member named of_node
   gc->of_node = bank->of_node;

Use #ifdef to guard this.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>Fixes
Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
---
 drivers/pinctrl/samsung/pinctrl-samsung.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index f26574e..5c29ad8 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -966,7 +966,9 @@ static int samsung_gpiolib_register(struct platform_device *pdev,
 		gc->base = bank->grange.base;
 		gc->ngpio = bank->nr_pins;
 		gc->parent = &pdev->dev;
+#ifdef CONFIG_OF_GPIO
 		gc->of_node = bank->of_node;
+#endif
 		gc->label = bank->name;
 
 		ret = devm_gpiochip_add_data(&pdev->dev, gc, bank);
-- 
2.7.4