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authorDominik Behr <dbehr@chromium.org>2015-11-10 17:59:10 +0800
committerMark Yao <mark.yao@rock-chips.com>2015-12-02 09:13:18 +0800
commit72906ce0301fc8a2cbfa52632191b0ba719699b5 (patch)
tree06a16372ff1a0b1a82e758d31855ec582b2387a5 /drivers/gpu/drm
parenta8594f20cafadb6ba58f915dea5f2c94a9333b1a (diff)
drm/rockchip: vop: fix window origin calculation
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>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_vop.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 48719df70419..4730ae46e5a7 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -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);