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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-08-13 16:48:51 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-08-14 10:03:28 +0200 |
| commit | 6c9e799a00cbdb50fa9129b57a59766010c63ffa (patch) | |
| tree | c85a8017b4e5951df8d5d0f9513ca8d40bec062b /include/of.h | |
| parent | 55909550f8eed7d67117327ca7f6e5692988938d (diff) | |
| download | barebox-6c9e799a00cbdb50fa9129b57a59766010c63ffa.tar.gz barebox-6c9e799a00cbdb50fa9129b57a59766010c63ffa.tar.xz | |
of: introduce some new helpers
of_get_tree_max_phandle - get the maximum phandle of a tree. Needed for
creating new phandles without conflicts.
of_node_create_phandle - create a phandle for a node which doesn't have one.
of_find_node_by_alias - find a node by alias name
of_find_node_by_path_or_alias - find a node by full path or alias name
of_find_root_node - find the root node for a given device node
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/of.h')
| -rw-r--r-- | include/of.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/of.h b/include/of.h index b99f0b2dae..2c77ee6bf3 100644 --- a/include/of.h +++ b/include/of.h @@ -689,4 +689,18 @@ int of_device_enable_path(const char *path); int of_device_disable(struct device_node *node); int of_device_disable_path(const char *path); +phandle of_get_tree_max_phandle(struct device_node *root); +phandle of_node_create_phandle(struct device_node *node); +struct device_node *of_find_node_by_alias(struct device_node *root, + const char *alias); +struct device_node *of_find_node_by_path_or_alias(struct device_node *root, + const char *str); + +static inline struct device_node *of_find_root_node(struct device_node *node) +{ + while (node->parent) + node = node->parent; + + return node; +} #endif /* __OF_H */ |