From 3296193d1421c2d6f9e49e181cecfd917f0f5764 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Tue, 14 Aug 2012 13:20:23 +0000 Subject: dt: introduce for_each_available_child_of_node, of_get_next_available_child Macro for_each_child_of_node() makes it easy to iterate over all of the children for a given device tree node, including those nodes that are marked as unavailable (i.e. status = "disabled"). Introduce for_each_available_child_of_node(), which is like for_each_child_of_node(), but it automatically skips unavailable nodes. This also requires the introduction of helper function of_get_next_available_child(), which returns the next available child node. Signed-off-by: Timur Tabi Signed-off-by: David S. Miller --- include/linux/of.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index 5919ee33f2b..1b1163225f3 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -190,10 +190,17 @@ extern struct device_node *of_get_parent(const struct device_node *node); extern struct device_node *of_get_next_parent(struct device_node *node); extern struct device_node *of_get_next_child(const struct device_node *node, struct device_node *prev); +extern struct device_node *of_get_next_available_child( + const struct device_node *node, struct device_node *prev); + #define for_each_child_of_node(parent, child) \ for (child = of_get_next_child(parent, NULL); child != NULL; \ child = of_get_next_child(parent, child)) +#define for_each_available_child_of_node(parent, child) \ + for (child = of_get_next_available_child(parent, NULL); child != NULL; \ + child = of_get_next_available_child(parent, child)) + static inline int of_get_child_count(const struct device_node *np) { struct device_node *child; -- cgit v1.2.3