[PATCH 2/3] of: of_gpiochip_add is needed only for gpiolib

[Thomas Chou]

Some gpio drivers may not use gpiolib. In this case, struct gpio_chip
is not defined and of_gpiochip_add/remove are not needed.

Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
---
 include/linux/of_gpio.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 6598c04..fc96af0 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -71,9 +71,13 @@ static inline unsigned int of_gpio_count(struct device_node *np)
 	return 0;
 }
 
+#ifdef CONFIG_GPIOLIB
+
 static inline void of_gpiochip_add(struct gpio_chip *gc) { }
 static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
 
+#endif /* CONFIG_GPIOLIB */
+
 #endif /* CONFIG_OF_GPIO */
 
 /**
-- 
1.7.3.5