From a034a8efe7ebf127d0a09c20b7e927c0f9c99e04 Mon Sep 17 00:00:00 2001
From: Bibby Hsieh <bibby.hsieh@mediatek.com>
Date: Thu, 13 Feb 2020 09:23:53 +0800
Subject: drm/mediatek: Add fb swap in async_update
Git-commit: c12b59adf21329b97609a9e23519055d6877c7b1
Patch-mainline: v5.6-rc5
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

Besides x, y position, width and height,
fb also need updating in async update.

Fixes: 920fffcc8912 ("drm/mediatek: update cursors by using async atomic update")

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/mediatek/mtk_drm_plane.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index 61cb7ddc117d..c2bd683a87c8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -121,6 +121,7 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
 	plane->state->src_y = new_state->src_y;
 	plane->state->src_h = new_state->src_h;
 	plane->state->src_w = new_state->src_w;
+	swap(plane->state->fb, new_state->fb);
 	state->pending.async_dirty = true;
 
 	mtk_drm_crtc_async_update(new_state->crtc, plane, new_state);
-- 
2.28.0