[RFC 11/21] drm: rcar-du: Fix VSP feed plane number

[Ulrich Hecht]

From: Koji Matsuoka <koji.matsuoka.xm at renesas.com>

VSP feeds plane1 and plane3 with R-Car Gen3.

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm at renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
 drivers/gpu/drm/rcar-du/rcar_du_plane.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index 8d5e59b..027c4cfb 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -489,7 +489,9 @@ static void rcar_du_plane_setup_format_gen2(struct rcar_du_group *rgrp,
 		rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
 
 	ddcr4 = state->format->edf | PnDDCR4_CODE;
-	if (state->source != RCAR_DU_PLANE_MEMORY)
+
+	if ((state->source != RCAR_DU_PLANE_MEMORY)
+		&& (!rcar_du_has(rcdu, RCAR_DU_FEATURE_GEN3_REGS)))
 		ddcr4 |= PnDDCR4_VSPS;
 
 	rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
-- 
2.7.4