Add a helper to iterate over all nodes with a given compatible string.
Signed-off-by: Michael Walle michael@walle.cc Reviewed-by: Simon Glass sjg@chromium.org --- include/dm/ofnode.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 6a714d0c7b..0f680e5aa6 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -1009,6 +1009,30 @@ ofnode ofnode_by_prop_value(ofnode from, const char *propname, ofnode_valid(node); \ node = ofnode_next_subnode(node))
+/** + * ofnode_for_each_compatible_node() - iterate over all nodes with a given + * compatible string + * + * @node: child node (ofnode, lvalue) + * @compat: compatible string to match + * + * This is a wrapper around a for loop and is used like so: + * + * ofnode node; + * + * ofnode_for_each_compatible_node(node, parent, compatible) { + * Use node + * ... + * } + * + * Note that this is implemented as a macro and @node is used as + * iterator in the loop. + */ +#define ofnode_for_each_compatible_node(node, compat) \ + for (node = ofnode_by_compatible(ofnode_null(), compat); \ + ofnode_valid(node); \ + node = ofnode_by_compatible(node, compat)) + /** * ofnode_get_child_count() - get the child count of a ofnode *