From 21aea1d9ff07bbb9098d419118d9a4de0d5bfc60 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Sun, 25 Oct 2015 22:03:28 +0100 Subject: of_path: add of_find_path_by_node() This patch adds the function of_find_path_by_node(), which is similar to of_find_path(), but it translates a device tree node into a barebox device path directly. Signed-off-by: Marc Kleine-Budde Signed-off-by: Sascha Hauer --- drivers/of/of_path.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'drivers/of/of_path.c') diff --git a/drivers/of/of_path.c b/drivers/of/of_path.c index ad64bee08a..6903905259 100644 --- a/drivers/of/of_path.c +++ b/drivers/of/of_path.c @@ -126,7 +126,7 @@ static int __of_find_path(struct device_node *node, const char *propname, char * i = 1; - while (1) { + while (propname) { ret = of_property_read_string_index(node, propname, i++, &str); if (ret) break; @@ -148,6 +148,21 @@ static int __of_find_path(struct device_node *node, const char *propname, char * return 0; } +/** + * of_find_path_by_node - translate a node in the devicetree to a + * barebox device path + * + * @node: the node we're interested in + * @outpath: if this function returns 0 outpath will contain the path belonging + * to the input path description. Must be freed with free(). + * @flags: use OF_FIND_PATH_FLAGS_BB to return the .bb device if available + * + */ +int of_find_path_by_node(struct device_node *node, char **outpath, unsigned flags) +{ + return __of_find_path(node, NULL, outpath, flags); +} + /** * of_find_path - translate a path description in the devicetree to a barebox * path -- cgit v1.2.3