[PATCH] device connection: test only

[Chunfeng Yun]

Change-Id: Ie1b4b6304dfd7a89516fa3578aa5a5b1be924212
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
 drivers/base/devcon.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/base/devcon.c b/drivers/base/devcon.c
index 8311b70bbca2..1dae8b77562d 100644
--- a/drivers/base/devcon.c
+++ b/drivers/base/devcon.c
@@ -18,9 +18,11 @@ fwnode_graph_devcon_match(struct fwnode_handle *fwnode, const char *con_id,
 {
 	struct device_connection con = { .id = con_id };
 	struct fwnode_handle *ep;
+	int ep_count = 0;
 	void *ret;
 
 	fwnode_graph_for_each_endpoint(fwnode, ep) {
+		ep_count++;
 		con.fwnode = fwnode_graph_get_remote_port_parent(ep);
 		if (!fwnode_device_is_available(con.fwnode))
 			continue;
@@ -32,6 +34,19 @@ fwnode_graph_devcon_match(struct fwnode_handle *fwnode, const char *con_id,
 			return ret;
 		}
 	}
+
+	/* if the connector has no remote endpoint, check its parent */
+	if (!ep_count) {
+		con.fwnode = fwnode_get_parent(fwnode);
+		if (!con.fwnode)
+			return NULL;
+
+		ret = match(&con, -1, data);
+		fwnode_handle_put(con.fwnode);
+		if (ret)
+			return ret;
+	}
+
 	return NULL;
 }
 
-- 
2.21.0


--=-1DBptkwq7PrdOe2/R7LH--