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authorMark yao <mark.yao@rock-chips.com>2017-07-31 17:49:46 +0800
committerMark Yao <mark.yao@rock-chips.com>2017-08-04 15:39:10 +0800
commit6f04f5925ce763e07cb405d1fbe97a53b6c026a3 (patch)
tree58efd6bc6002c0c4bc99772db69a16d8f1426a00 /drivers/gpu
parentda6c9bbf418dcb0f8be261f4353400fa959b1e92 (diff)
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drm/rockchip: vop: fix NV12 video display error
fixup the scale calculation formula on the case src_height == (dst_height/2). Signed-off-by: Mark Yao <mark.yao@rock-chips.com> Reviewed-by: Sandy huang <sandy.huang@rock-chips.com> Link: https://patchwork.freedesktop.org/patch/msgid/1501494586-6984-1-git-send-email-mark.yao@rock-chips.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_vop.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index 9979fd0c2282..27eefbfcf3d0 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -282,6 +282,9 @@ static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
act_height = (src_h + vskiplines - 1) / vskiplines;
+ if (act_height == dst_h)
+ return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
+
return GET_SCL_FT_BILI_DN(act_height, dst_h);
}