From: Bryan Wu <cooloney@gmail.com>
Date: Tue, 24 Sep 2013 17:38:26 +0000 (-0700)
Subject: of: introduce of_get_available_child_count
X-Git-Tag: next-20131025~25^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=72976b65afee02d6dd06f74f6b6672c7f10c4a9a;p=karo-tx-linux.git

of: introduce of_get_available_child_count

Some drivers keep counting available child by themselves. So
introduce a new simple API like of_get_child_count() but for
available childs.

Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---

diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee391e30..54c25606a997 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -226,6 +226,17 @@ static inline int of_get_child_count(const struct device_node *np)
 	return num;
 }
 
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+	struct device_node *child;
+	int num = 0;
+
+	for_each_available_child_of_node(np, child)
+		num++;
+
+	return num;
+}
+
 extern struct device_node *of_find_node_with_property(
 	struct device_node *from, const char *prop_name);
 #define for_each_node_with_property(dn, prop_name) \
@@ -376,6 +387,11 @@ static inline int of_get_child_count(const struct device_node *np)
 	return 0;
 }
 
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+	return 0;
+}
+
 static inline int of_device_is_compatible(const struct device_node *device,
 					  const char *name)
 {