diff options
| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2023-12-21 01:13:11 +0300 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2024-01-09 00:30:24 +0300 |
| commit | 49ddab089611ae5ddd0201ddbbf633da75bfcc25 (patch) | |
| tree | 37db6d9df52a54d0bf721104818bd1665938b11a /drivers/gpu/drm/panel | |
| parent | 251ba4583f750db2a89c464ed15682028c215688 (diff) | |
| download | linux-49ddab089611ae5ddd0201ddbbf633da75bfcc25.tar.xz | |
drm/panel-edp: use put_sync in unprepare
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
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 cd05c76868e3..7d556b1bfa82 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -429,8 +429,7 @@ 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; |