drm/bridge: nxp-ptn3460: 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/20220228182600.22463-1-jose.exposito89@gmail.com

drivers/gpu/drm/bridge/nxp-ptn3460.c

@@ -263,7 +263,6 @@ static int ptn3460_probe(struct i2c_client *client,
 	struct device *dev = &client->dev;
 	struct ptn3460_bridge *ptn_bridge;
 	struct drm_bridge *panel_bridge;
-	struct drm_panel *panel;
 	int ret;
 
 	ptn_bridge = devm_kzalloc(dev, sizeof(*ptn_bridge), GFP_KERNEL);
@@ -271,11 +270,7 @@ static int ptn3460_probe(struct i2c_client *client,
 		return -ENOMEM;
 	}
 
-	ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, &panel, NULL);
-	if (ret)
-		return ret;
-
-	panel_bridge = devm_drm_panel_bridge_add(dev, panel);
+	panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 0, 0);
 	if (IS_ERR(panel_bridge))
 		return PTR_ERR(panel_bridge);