[PATCH v4 4/4] drm/lcdif: switch to devm_drm_of_get_bridge

[Marek Vasut]

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.

Acked-by: Sam Ravnborg <sam at ravnborg.org>
Reviewed-by: Liu Ying <victor.liu at nxp.com>
Reported-by: Liu Ying <victor.liu at oss.nxp.com>
Tested-by: Martyn Welch <martyn.welch at collabora.com>
Fixes: 9db35bb349a0e ("drm: lcdif: Add support for i.MX8MP LCDIF variant")
Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Alexander Stein <alexander.stein at ew.tq-group.com>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Liu Ying <victor.liu at nxp.com>
Cc: Lucas Stach <l.stach at pengutronix.de>
Cc: Marek Vasut <marex at denx.de>
Cc: Martyn Welch <martyn.welch at collabora.com>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Robby Cai <robby.cai at nxp.com>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Stefan Agner <stefan at agner.ch>
---
V2: Add RB from Liu
V3: Add TB from Martyn from V1
V4: Add AB from Sam from V2
---
 drivers/gpu/drm/mxsfb/lcdif_drv.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/mxsfb/lcdif_drv.c b/drivers/gpu/drm/mxsfb/lcdif_drv.c
index 1370889c6d687..746a4261f3da2 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_drv.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_drv.c
@@ -42,23 +42,11 @@ static int lcdif_attach_bridge(struct lcdif_drm_private *lcdif)
 {
 	struct drm_device *drm = lcdif->drm;
 	struct drm_bridge *bridge;
-	struct drm_panel *panel;
 	int ret;
 
-	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,
-					  &bridge);
-	if (ret)
-		return ret;
-
-	if (panel) {
-		bridge = devm_drm_panel_bridge_add_typed(drm->dev, panel,
-							 DRM_MODE_CONNECTOR_DPI);
-		if (IS_ERR(bridge))
-			return PTR_ERR(bridge);
-	}
-
-	if (!bridge)
-		return -ENODEV;
+	bridge = devm_drm_of_get_bridge(drm->dev, drm->dev->of_node, 0, 0);
+	if (IS_ERR(bridge))
+		return PTR_ERR(bridge);
 
 	ret = drm_bridge_attach(&lcdif->encoder, bridge, NULL, 0);
 	if (ret)
-- 
2.35.1