linux-kernel - [RFC][PATCH] of: add a dummy implementation of of_get

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Date:	Fri, 05 Aug 2011 16:56:14 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Colin Cross <ccross@...roid.com>,
	John Bonesio <bones@...retlab.ca>,
	"Jean Delvare (PC drivers, core)" <khali@...ux-fr.org>,
	"Ben Dooks (embedded platforms)" <ben-linux@...ff.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-i2c@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	"Sam Ravnborg sam"@ravnborg.org
Subject: [RFC][PATCH] of: add a dummy implementation of of_get_property()
 in of.h

Then we can avoid having #ifdef CONFIG_OF splattered around the place
calling of_get_property(), it leads to errors.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
This patch fixes below build error with "make tegra_defconfig;make".

  CC      drivers/i2c/busses/i2c-tegra.o
drivers/i2c/busses/i2c-tegra.c: In function 'tegra_i2c_probe':
drivers/i2c/busses/i2c-tegra.c:615: error: implicit declaration of function 'of_get_property'
drivers/i2c/busses/i2c-tegra.c:616: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/i2c/busses/i2c-tegra.o] Error 1
make[2]: *** [drivers/i2c/busses] Error 2
make[1]: *** [drivers/i2c] Error 2
make: *** [drivers] Error 2

Regards,
Axel
 include/linux/of.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index 0085bb0..320cbad 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -256,6 +256,12 @@ static inline int of_property_read_string(struct device_node *np,
 	return -ENOSYS;
 }
 
+static inline const void *of_get_property(const struct device_node *np,
+					  const char *name, int *lenp)
+{
+	return NULL;
+}
+
 #endif /* CONFIG_OF */
 
 static inline int of_property_read_u32(const struct device_node *np,
-- 
1.7.4.1



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