diff options
Diffstat (limited to 'drivers/of/property.c')
| -rw-r--r-- | drivers/of/property.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c index 6dd5461ea359..ce0e08176fca 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -668,6 +668,33 @@ struct device_node *of_graph_get_next_port(const struct device_node *parent, EXPORT_SYMBOL(of_graph_get_next_port); /** + * of_graph_get_next_port_endpoint() - get next endpoint node in port. + * If it reached to end of the port, it will return NULL. + * @port: pointer to the target port node + * @prev: previous endpoint node, or NULL to get first + * + * Return: An 'endpoint' node pointer with refcount incremented. Refcount + * of the passed @prev node is decremented. + */ +struct device_node *of_graph_get_next_port_endpoint(const struct device_node *port, + struct device_node *prev) +{ + while (1) { + prev = of_get_next_child(port, prev); + if (!prev) + break; + if (WARN(!of_node_name_eq(prev, "endpoint"), + "non endpoint node is used (%pOF)", prev)) + continue; + + break; + } + + return prev; +} +EXPORT_SYMBOL(of_graph_get_next_port_endpoint); + +/** * of_graph_get_next_endpoint() - get next endpoint node * @parent: pointer to the parent device node * @prev: previous endpoint node, or NULL to get first |