When LVDS dual link is used, we have to enable the LDB_CTRL_SPLIT_MODE bit.
Fixes: 463db5c2ed4a ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge")
Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Cc: Robert Foss <robert.foss@xxxxxxxxxx>
Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Jonas Karlman <jonas@xxxxxxxxx>
Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Marek Vasut <marex@xxxxxxx>
Cc: NXP Linux Team <linux-imx@xxxxxxx>
Signed-off-by: Liu Ying <victor.liu@xxxxxxx>
---
drivers/gpu/drm/bridge/fsl-ldb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c
index 3cb3b310e283..d4f005eef6f6 100644
--- a/drivers/gpu/drm/bridge/fsl-ldb.c
+++ b/drivers/gpu/drm/bridge/fsl-ldb.c
@@ -153,7 +153,7 @@ static void fsl_ldb_atomic_enable(struct drm_bridge *bridge,
reg = LDB_CTRL_CH0_ENABLE;
if (fsl_ldb->lvds_dual_link)
- reg |= LDB_CTRL_CH1_ENABLE;
+ reg |= LDB_CTRL_CH1_ENABLE | LDB_CTRL_SPLIT_MODE;
if (lvds_format_24bpp) {
reg |= LDB_CTRL_CH0_DATA_WIDTH;
--
2.25.1
