diff options
| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2023-12-21 01:13:11 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:19:42 +0300 |
| commit | c5e834cf86fd8fc484466e255d177a50476403d9 (patch) | |
| tree | 21e2ded6b9e0e00bc942d27c60306e2d062b7928 /drivers/gpu/drm/panel | |
| parent | b241ee1e491dacdca61ca990608e4c5e5580ab3e (diff) | |
| download | linux-c5e834cf86fd8fc484466e255d177a50476403d9.tar.xz | |
drm/panel-edp: use put_sync in unprepare
[ Upstream commit 49ddab089611ae5ddd0201ddbbf633da75bfcc25 ]
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: 3235b0f20a0a ("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>
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-edp.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index cba5a93e6082..70feee787611 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -413,8 +413,7 @@ static int panel_edp_unprepare(struct drm_panel *panel) if (!p->prepared) return 0; - pm_runtime_mark_last_busy(panel->dev); - ret = pm_runtime_put_autosuspend(panel->dev); + ret = pm_runtime_put_sync_suspend(panel->dev); if (ret < 0) return ret; p->prepared = false; |