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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-27 07:08:39 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-27 07:08:39 -0700
commit9db48aaf18d675ac41f550c9384154e0c00de2ef (patch)
tree70a19b9164c103e5f52dddff609e01672f8ef616 /drivers/of/base.c
parent0592969e73ae50ce6852d1aff3d222a335289094 (diff)
parentfea7a08acb13524b47711625eebea40a0ede69a0 (diff)
Merge 3.6-rc3 into driver-core-next
This picks up the printk fixes in 3.6-rc3 that are needed in this branch. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/of/base.c')
-rw-r--r--drivers/of/base.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index c181b94abc3..d4a1c9a043e 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -364,6 +364,33 @@ struct device_node *of_get_next_child(const struct device_node *node,
EXPORT_SYMBOL(of_get_next_child);
/**
+ * of_get_next_available_child - Find the next available child node
+ * @node: parent node
+ * @prev: previous child of the parent node, or NULL to get first
+ *
+ * This function is like of_get_next_child(), except that it
+ * automatically skips any disabled nodes (i.e. status = "disabled").
+ */
+struct device_node *of_get_next_available_child(const struct device_node *node,
+ struct device_node *prev)
+{
+ struct device_node *next;
+
+ read_lock(&devtree_lock);
+ next = prev ? prev->sibling : node->child;
+ for (; next; next = next->sibling) {
+ if (!of_device_is_available(next))
+ continue;
+ if (of_node_get(next))
+ break;
+ }
+ of_node_put(prev);
+ read_unlock(&devtree_lock);
+ return next;
+}
+EXPORT_SYMBOL(of_get_next_available_child);
+
+/**
* of_find_node_by_path - Find a node matching a full OF path
* @path: The full path to match
*