drm: bridge: thc63lvd1024: Switch to use of_graph_get_remote_node()

To reduce boilerplate, use of_graph_get_remote_node() helper instead of
the hand-rolling code.

Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240316172800.1168390-1-sui.jingfeng@linux.dev
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240316172800.1168390-1-sui.jingfeng@linux.dev

diff --git a/drivers/gpu/drm/bridge/thc63lvd1024.c b/drivers/gpu/drm/bridge/thc63lvd1024.c
index d4c1a601bbb5e4d28df3629f7eaf5566e6315345..5f99f9724081e2a1fb234dbb86bf74fa6d4ac05c 100644 (file)
--- a/drivers/gpu/drm/bridge/thc63lvd1024.c
+++ b/drivers/gpu/drm/bridge/thc63lvd1024.c
@@ -123,28 +123,10 @@ static int thc63_parse_dt(struct thc63_dev *thc63)
        struct device_node *endpoint;
        struct device_node *remote;
 
-       endpoint = of_graph_get_endpoint_by_regs(thc63->dev->of_node,
-                                                THC63_RGB_OUT0, -1);
-       if (!endpoint) {
-               dev_err(thc63->dev, "Missing endpoint in port@%u\n",
-                       THC63_RGB_OUT0);
-               return -ENODEV;
-       }
-
-       remote = of_graph_get_remote_port_parent(endpoint);
-       of_node_put(endpoint);
-       if (!remote) {
-               dev_err(thc63->dev, "Endpoint in port@%u unconnected\n",
-                       THC63_RGB_OUT0);
+       remote = of_graph_get_remote_node(thc63->dev->of_node,
+                                         THC63_RGB_OUT0, -1);
+       if (!remote)
                return -ENODEV;
-       }
-
-       if (!of_device_is_available(remote)) {
-               dev_err(thc63->dev, "port@%u remote endpoint is disabled\n",
-                       THC63_RGB_OUT0);
-               of_node_put(remote);
-               return -ENODEV;
-       }
 
        thc63->next = of_drm_find_bridge(remote);
        of_node_put(remote);