linux-kernel - [PATCH] dt: add empty for_each_child_of_node, of_find

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Date:	Wed, 21 Sep 2011 13:23:10 -0600
From:	Stephen Warren <swarren@...dia.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dia.com>
Subject: [PATCH] dt: add empty for_each_child_of_node, of_find_property

The patch adds a couple empty functions for non-dt build, so that
drivers migrating to dt can save some '#ifdef CONFIG_OF'.

Signed-off-by: Stephen Warren <swarren@...dia.com>
---
Unfortunately, I screwed up and my recent sdhci-tegra.c changes rely on this
change to compile without CONFIG_OF; I really need to stop doing my test-
builds in a single branch will all my outstanding changes present:-(

 include/linux/of.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index 9180dc5..1fc5875 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -242,6 +242,16 @@ static inline bool of_have_populated_dt(void)
 	return false;
 }
 
+#define for_each_child_of_node(parent, child) \
+	while (0)
+
+static inline struct property *of_find_property(const struct device_node *np,
+						const char *name,
+						int *lenp)
+{
+	return NULL;
+}
+
 static inline int of_property_read_u32_array(const struct device_node *np,
 					     const char *propname,
 					     u32 *out_values, size_t sz)
-- 
1.7.0.4

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