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Subject[PATCH/RFC 09/12] drm: rcar-du: lvds: Fix companion's mode
Date
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.
--
2.7.4
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