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drm/rockchip: vop: fix window origin calculation

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VOP_WINx_DSP_ST does not require subtracting 1 from the values written to
it. It actually causes the screen to be shifted by one pixel.

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
This commit is contained in:
Dominik Behr 2015-11-10 17:59:10 +08:00 committed by Mark Yao
parent a8594f20ca
commit 72906ce030
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@ -959,8 +959,8 @@ static int vop_update_plane_event(struct drm_plane *plane,
val = (dest.y2 - dest.y1 - 1) << 16;
val |= (dest.x2 - dest.x1 - 1) & 0xffff;
VOP_WIN_SET(vop, win, dsp_info, val);
val = (dsp_sty - 1) << 16;
val |= (dsp_stx - 1) & 0xffff;
val = dsp_sty << 16;
val |= dsp_stx & 0xffff;
VOP_WIN_SET(vop, win, dsp_st, val);
VOP_WIN_SET(vop, win, rb_swap, rb_swap);