drm/mediatek: dsi: Fix scrolling of panel with small hfp or hbp

horizontal_backporch_byte should be hbp * bpp - hbp extra bytes.
So remove the wrong subtraction 10.

Fixes: 7a5bc4e22e ("drm/mediatek: change the dsi phytiming calculate method")
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Jitao Shi 2020-08-17 21:06:40 +08:00 • committed by Chun-Kuang Hu
commit 35bf948f1e