diff options
| author | Pi-Hsun Shih <pihsun@chromium.org> | 2021-05-20 14:44:52 +0800 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2021-05-20 12:27:20 +0200 |
| commit | 3203e497eb769cdf3b2f835bdc92083fee2796a9 (patch) | |
| tree | b9673f7ea38c628fd4f8d6a2c2b0f659f1e6c3d6 | |
| parent | 07775fc13878cbc2e9cda5ffac7c7289adee91cb (diff) | |
| download | linux-stable-3203e497eb769cdf3b2f835bdc92083fee2796a9.tar.gz linux-stable-3203e497eb769cdf3b2f835bdc92083fee2796a9.tar.bz2 linux-stable-3203e497eb769cdf3b2f835bdc92083fee2796a9.zip | |
drm/bridge: anx7625: Synchronously run runtime suspend.
Originally when using pm_runtime_put, there's a chance that the runtime
suspend hook will be run after the following anx7625_bridge_mode_set
call, resulting in the display_timing_valid field to be cleared, and the
following power on fail.
Change all pm_runtime_put to pm_runtime_put_sync, so all power off
operations are guaranteed to be done after the call returns.
Fixes: 60487584a79a ("drm/bridge: anx7625: refactor power control to use runtime PM framework")
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Tested-by: Tzung-Bi Shih <tzungbi@google.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210520064508.3121211-1-pihsun@chromium.org
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/anx7625.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 29493cc2d300..7519b7a0f29d 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -1255,7 +1255,7 @@ static struct edid *anx7625_get_edid(struct anx7625_data *ctx) pm_runtime_get_sync(dev); edid_num = sp_tx_edid_read(ctx, p_edid->edid_raw_data); - pm_runtime_put(dev); + pm_runtime_put_sync(dev); if (edid_num < 1) { DRM_DEV_ERROR(dev, "Fail to read EDID: %d\n", edid_num); @@ -1573,7 +1573,7 @@ static void anx7625_bridge_disable(struct drm_bridge *bridge) anx7625_dp_stop(ctx); - pm_runtime_put(dev); + pm_runtime_put_sync(dev); } static enum drm_connector_status |