drm/mediatek: apply CMDQ control flow

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In some Mediatek SoC, there is no "shadow"
registers for performaing an atomic video mode
set or page flip at vblank/vsync.

The CMDQ (Commend Queue) is used to help
update all relevant display controller registers
with critical time limation.

Signed-off-by: YT Shen <yt.shen@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>

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Bibby Hsieh 2019-12-10 13:05:26 +08:00 • committed by CK Hu

parent d0afe37f52

commit 2f965be7f9

1 changed files with 55 additions and 6 deletions

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drivers/gpu/drm/mediatek/mtk_drm_crtc.c

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