From bd933bfd834364bca6cc6f3a62e4255090a5bec1 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 27 Jan 2020 08:49:46 -0700 Subject: dm: core: Add ofnode_get_chosen_prop() Add a function to read a property from the chosen node, providing access to its length. Update ofnode_get_chosen_string() to make use of it. Signed-off-by: Simon Glass --- include/dm/ofnode.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/dm') diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 8007483680..b5a50e8849 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -520,6 +520,18 @@ int ofnode_count_phandle_with_args(ofnode node, const char *list_name, */ ofnode ofnode_path(const char *path); +/** + * ofnode_read_chosen_prop() - get the value of a chosen property + * + * This looks for a property within the /chosen node and returns its value + * + * @propname: Property name to look for + * @sizep: Returns size of property, or FDT_ERR_... error code if function + * returns NULL + * @return property value if found, else NULL + */ +const void *ofnode_read_chosen_prop(const char *propname, int *sizep); + /** * ofnode_read_chosen_string() - get the string value of a chosen property * -- cgit v1.2.1