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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-03 07:42:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-03 07:42:58 +0200 |
| commit | 35f4a629641b812e04fadef087da5d6af59e32d7 (patch) | |
| tree | 9cd5010ed6c0bf18cb631e60149a16ecccd9e0f3 /drivers/gpu/drm/i915/display/intel_dp.c | |
| parent | fc88bb11617978fb3fcfcc697fd5c9d2dae9c4a3 (diff) | |
| parent | 431c1646e1f86b949fa3685efc50b660a364c2b6 (diff) | |
Merge 6.11-rc6 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 59f11af3b0a1..dc75a929d3ed 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5935,6 +5935,18 @@ intel_dp_detect(struct drm_connector *connector, else status = connector_status_disconnected; + if (status != connector_status_disconnected && + !intel_dp_mst_verify_dpcd_state(intel_dp)) + /* + * This requires retrying detection for instance to re-enable + * the MST mode that got reset via a long HPD pulse. The retry + * will happen either via the hotplug handler's retry logic, + * ensured by setting the connector here to SST/disconnected, + * or via a userspace connector probing in response to the + * hotplug uevent sent when removing the MST connectors. + */ + status = connector_status_disconnected; + if (status == connector_status_disconnected) { memset(&intel_dp->compliance, 0, sizeof(intel_dp->compliance)); memset(intel_connector->dp.dsc_dpcd, 0, sizeof(intel_connector->dp.dsc_dpcd)); |