From 8985ff56b16dc6c04da2c96d48e7f6f54d04e3ff Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 10 Jan 2025 17:00:29 -0700 Subject: dm: core: Provide ofnode_find_subnode_unit() The ofnode_find_subnode() function currently processes things two different ways, so the treatment of unit addresses differs depending on whether OF_LIVE is enabled or not. Add a new version which uses the ofnode API and add a test to check that unit addresses can be matched correctly. Leave the old function in place for the !OF_LIVE case, to avoid a code-size increase, e.g. on firefly-rk3288 Signed-off-by: Simon Glass --- include/dm/ofnode.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 8e4c3574df8..120393426db 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -607,6 +607,18 @@ bool ofnode_read_bool(ofnode node, const char *propname); */ ofnode ofnode_find_subnode(ofnode node, const char *subnode_name); +/** + * ofnode_find_subnode_unit() - find a named subnode of a parent node + * + * @node: valid reference to parent node + * @subnode_name: name of subnode to find, including any unit address. If the + * unit address is omitted, any subnode which matches the name (excluding + * any unit address) is returned + * Return: reference to subnode (which can be invalid if there is no such + * subnode) + */ +ofnode ofnode_find_subnode_unit(ofnode node, const char *subnode_name); + #if CONFIG_IS_ENABLED(DM_INLINE_OFNODE) #include -- cgit v1.2.3