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@bp.renesas.com --- 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.