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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
This commit is contained in:
Mark yao 2017-07-31 17:49:46 +08:00 committed by Mark Yao
parent da6c9bbf41
commit 6f04f5925c
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/rockchip/rockchip_drm_vop.h
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@ -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);
}