drm/exynos: dsi: do not try to find bridge

It doesn't need to try to find a bridge if bridge node doesn't exist.

Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index a11b79596e2f..189685365450 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1687,9 +1687,11 @@ static int exynos_dsi_bind(struct device *dev, struct device *master,
                 return ret;
         }
 
-        bridge = of_drm_find_bridge(dsi->bridge_node);
-        if (bridge)
-                drm_bridge_attach(encoder, bridge, NULL);
+        if (dsi->bridge_node) {
+                bridge = of_drm_find_bridge(dsi->bridge_node);
+                if (bridge)
+                        drm_bridge_attach(encoder, bridge, NULL);
+        }
 
         return mipi_dsi_host_register(&dsi->dsi_host);
 }