The of_graph ports of a node nowadays are usually collected under a 'ports' subnode instead of being directly under the devices node. Handle this case correctly.
Signed-off-by: Sascha Hauer <[email protected]> --- drivers/of/base.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/of/base.c b/drivers/of/base.c index fbbc3316fc..398e39340f 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -3271,11 +3271,14 @@ EXPORT_SYMBOL(of_graph_parse_endpoint); * * Return: A 'port' node pointer with refcount incremented. */ -struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id) +struct device_node *of_graph_get_port_by_id(struct device_node *parent, u32 id) { - struct device_node *port; + struct device_node *port, *node = of_get_child_by_name(parent, "ports"); + + if (node) + parent = node; - for_each_child_of_node(node, port) { + for_each_child_of_node(parent, port) { u32 port_id = 0; if (strncmp(port->name, "port", 4) != 0) -- 2.39.5
