DRM: i.MX: parallel display: Support probe deferral for finding DRM panel

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 5e83e00..900dda6 100644 (file)
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -236,8 +236,11 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
        }
 
        panel_node = of_parse_phandle(np, "fsl,panel", 0);
-       if (panel_node)
+       if (panel_node) {
                imxpd->panel = of_drm_find_panel(panel_node);
+               if (!imxpd->panel)
+                       return -EPROBE_DEFER;
+       }
 
        imxpd->dev = dev;