The companion encoder needs to be told to use the same
mode as the primary encoder.
Fixes: e9e8798ab7b8 ("drm: rcar-du: lvds: Add support for dual-link mode")
Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/rcar-du/rcar_lvds.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index edd63f5..7944ae9 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -415,8 +415,12 @@ static void rcar_lvds_enable(struct drm_bridge *bridge)
return;
/* Enable the companion LVDS encoder in dual-link mode. */
- if (lvds->dual_link && lvds->companion)
+ if (lvds->dual_link && lvds->companion) {
+ struct rcar_lvds *companion_lvds = bridge_to_rcar_lvds(
+ lvds->companion);
+ companion_lvds->mode = lvds->mode;
lvds->companion->funcs->enable(lvds->companion);
+ }
/*
* Hardcode the channels and control signals routing for now.
--
2.7.4
