From 3e6ae2773f78d3d08f136c2f58dad615775d4838 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 15 May 2018 20:47:52 +0300
Subject: [PATCH 1338/1795] drm: rcar-du: Fix build failure

Commit 75a07f399cd4 ("drm: rcar-du: Zero-out sg_tables when duplicating
plane state") introduced a reference to the alpha field of struct
rcar_du_vsp_plane_state that got removed in commit 301a9b8d5456
("drm/rcar-du: Convert to the new generic alpha property"). The issue
stems from the merge of the two commits through separate branches and
breaks compilation of the driver. Fix it.

Fixes: 75a07f399cd4 ("drm: rcar-du: Zero-out sg_tables when duplicating plane state")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180515174752.28954-1-laurent.pinchart+renesas@ideasonboard.com
(cherry picked from commit 315852b422972e6ebb1dfddaadada09e46a2681a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index ae95e2010a5e..21cbe741d0b4 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -316,7 +316,6 @@ rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
 		return NULL;
 
 	__drm_atomic_helper_plane_duplicate_state(plane, &copy->state);
-	copy->alpha = to_rcar_vsp_plane_state(plane->state)->alpha;
 
 	return &copy->state;
 }
-- 
2.19.0