[PATCH 2/2] drm/mediatek: add fb swap in async_update

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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@xxxxxxxxxxxx>
---
 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 d32b494ff1de..e084c36fdd8a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -122,6 +122,7 @@ 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);
-- 
2.18.0
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