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>
---
v1->v2:
* reworked according to Laurent's feedback
drivers/gpu/drm/rcar-du/rcar_lvds.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index 3fe0b86..41d28f4 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -603,6 +603,11 @@ static void rcar_lvds_mode_set(struct drm_bridge *bridge,
lvds->display_mode = *adjusted_mode;
rcar_lvds_get_lvds_mode(lvds);
+ if (lvds->companion) {
+ struct rcar_lvds *companion_lvds = bridge_to_rcar_lvds(
+ lvds->companion);
+ companion_lvds->mode = lvds->mode;
+ }
}
static int rcar_lvds_attach(struct drm_bridge *bridge)
--
2.7.4
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