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

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Message-Id: <1296487551-30938-2-git-send-email-thomas@wytron.com.tw>
Date:	Mon, 31 Jan 2011 23:25:50 +0800
From:	Thomas Chou <thomas@...ron.com.tw>
To:	Haavard Skinnemoen <hskinnemoen@...il.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Ben Dooks <ben-linux@...ff.org>
Cc:	linux-kernel@...r.kernel.org, nios2-dev@...c.et.ntust.edu.tw,
	devicetree-discuss@...ts.ozlabs.org, linux-i2c@...r.kernel.org,
	Jean Delvare <khali@...ux-fr.org>,
	Thomas Chou <thomas@...ron.com.tw>
Subject: [PATCH 2/3] of: of_gpiochip_add is needed only for gpiolib

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@...ron.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

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