[PATCH/RFC 07/12] drm: rcar-du: lvds: Add support for dual link panels

[Fabrizio Castro]

If the display comes with two ports, assume it supports dual
link.

Signed-off-by: Fabrizio Castro <fabrizio.castro at bp.renesas.com>
---
 drivers/gpu/drm/rcar-du/rcar_lvds.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index 2d54ae5..97c51c2 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -751,6 +751,9 @@ static int rcar_lvds_parse_dt(struct rcar_lvds *lvds)
 			ret = -EPROBE_DEFER;
 			goto done;
 		}
+		if (lvds->info->quirks & RCAR_LVDS_QUIRK_DUAL_LINK)
+			lvds->dual_link = of_graph_get_endpoint_count(remote)
+					== 2;
 	}
 
 	if (lvds->dual_link) {
-- 
2.7.4