[PATCH 5/5] drm/tilcdc: Avoid error print by of_graph_get_next_endpoint()

[Jyri Sarha]

Avoid error print by of_graph_get_next_endpoint() if there is no ports
present.

Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 drivers/gpu/drm/tilcdc/tilcdc_external.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
index 03acb4f..51811e3 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
@@ -138,9 +138,20 @@ static int dev_match_of(struct device *dev, void *data)
 int tilcdc_get_external_components(struct device *dev,
 				   struct component_match **match)
 {
+	struct device_node *node;
 	struct device_node *ep = NULL;
 	int count = 0;
 
+	/* Avoid error print by of_graph_get_next_endpoint() if there
+	 * is no ports present.
+	 */
+	node = of_get_child_by_name(dev->of_node, "ports");
+	if (!node)
+		node = of_get_child_by_name(dev->of_node, "port");
+	if (!node)
+		return 0;
+	of_node_put(node);
+
 	while ((ep = of_graph_get_next_endpoint(dev->of_node, ep))) {
 		struct device_node *node;
 
-- 
1.9.1