drm/rcar-du: use for_each_endpoint_of_node macro

Using the for_each_... macro should make the code a bit shorter and
easier to read.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index 68dab26..c235074 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -224,12 +224,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
 
        entity_ep_node = of_parse_phandle(ep->local_node, "remote-endpoint", 0);
 
-       while (1) {
-               ep_node = of_graph_get_next_endpoint(entity, ep_node);
-
-               if (!ep_node)
-                       break;
-
+       for_each_endpoint_of_node(entity, ep_node) {
                if (ep_node == entity_ep_node)
                        continue;
 
@@ -296,24 +291,19 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
 static int rcar_du_encoders_init(struct rcar_du_device *rcdu)
 {
        struct device_node *np = rcdu->dev->of_node;
-       struct device_node *ep_node = NULL;
+       struct device_node *ep_node;
        unsigned int num_encoders = 0;
 
        /*
         * Iterate over the endpoints and create one encoder for each output
         * pipeline.
         */
-       while (1) {
+       for_each_endpoint_of_node(np, ep_node) {
                enum rcar_du_output output;
                struct of_endpoint ep;
                unsigned int i;
                int ret;
 
-               ep_node = of_graph_get_next_endpoint(np, ep_node);
-
-               if (ep_node == NULL)
-                       break;
-
                ret = of_graph_parse_endpoint(ep_node, &ep);
                if (ret < 0) {
                        of_node_put(ep_node);