Files
linux-stable-mirror/drivers/gpu/drm/panel
Hsin-Yi WangandSasha Levin 680c94312e drm/panel-edp: use put_sync in unprepare
[ Upstream commit 49ddab0896 ]

Some edp panel requires T10 (Delay from end of valid video data transmitted
by the Source device to power-off) less than 500ms. Using autosuspend with
delay set as 1000 violates this requirement.

Use put_sync_suspend in unprepare to meet the spec. For other cases (such
as getting EDID), it still uses autosuspend.

Suggested-by: Douglas Anderson <dianders@chromium.org>
Fixes: 3235b0f20a ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231220221418.2610185-1-hsinyi@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:20:44 -04:00
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