drm/bridge: ti-sn65dsi83: switch to devm_drm_of_get_bridge

The function "drm_of_find_panel_or_bridge" has been deprecated in
favor of "devm_drm_of_get_bridge".

Switch to the new function and reduce boilerplate.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220228183724.25030-1-jose.exposito89@gmail.com

drivers/gpu/drm/bridge/ti-sn65dsi83.c

@@ -565,7 +565,6 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model)
 	struct drm_bridge *panel_bridge;
 	struct device *dev = ctx->dev;
 	struct device_node *endpoint;
-	struct drm_panel *panel;
 	int ret;
 
 	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, 0);
@@ -605,15 +604,10 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model)
 		}
 	}
 
-	ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &panel, &panel_bridge);
-	if (ret < 0)
+	panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 2, 0);
+	if (IS_ERR(panel_bridge)) {
+		ret = PTR_ERR(panel_bridge);
 		goto err_put_node;
-	if (panel) {
-		panel_bridge = devm_drm_panel_bridge_add(dev, panel);
-		if (IS_ERR(panel_bridge)) {
-			ret = PTR_ERR(panel_bridge);
-			goto err_put_node;
-		}
 	}
 
 	ctx->panel_bridge = panel_bridge;