diff options
| author | Shixiong Ou <[email protected]> | 2024-05-09 16:57:58 +0800 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-05-13 15:44:38 -0400 |
| commit | 949658cb9b69ab9d22a42a662b2fdc7085689ed8 (patch) | |
| tree | 00b271bda9f5c8db6f70273339a530f65d8d5bca | |
| parent | d2d3a44008fea01ec7d5a9d9ca527286be2e0257 (diff) | |
drm/radeon: Delay Connector detecting when HPD singals is unstable
In some causes, HPD signals will jitter when plugging in
or unplugging HDMI.
Rescheduling the hotplug work for a second when EDID may still be
readable but HDP is disconnected, and fixes this issue.
Signed-off-by: Shixiong Ou <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index b84b58926106..cf0114ca59a4 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1267,6 +1267,16 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) goto exit; } } + + if (dret && radeon_connector->hpd.hpd != RADEON_HPD_NONE && + !radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) && + connector->connector_type == DRM_MODE_CONNECTOR_HDMIA) { + DRM_DEBUG_KMS("EDID is readable when HPD disconnected\n"); + schedule_delayed_work(&rdev->hotplug_work, msecs_to_jiffies(1000)); + ret = connector_status_disconnected; + goto exit; + } + if (dret) { radeon_connector->detected_by_load = false; radeon_connector_free_edid(connector); |