forked from Minki/linux
Revert "drm/i915: Implement Link Rate fallback on Link training failure"
This reverts commit 233ce881dd
.
I assumed it's ok, but really should have double-checked - CI caught
tons of fail :(
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Acked-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301171749.13053-1-daniel.vetter@ffwll.ch
This commit is contained in:
parent
0f3bbe074d
commit
afc1ebf456
drivers/gpu/drm/i915
@ -5790,29 +5790,6 @@ out_vdd_off:
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return false;
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}
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static void intel_dp_modeset_retry_work_fn(struct work_struct *work)
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{
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struct intel_connector *intel_connector;
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struct drm_connector *connector;
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intel_connector = container_of(work, typeof(*intel_connector),
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modeset_retry_work);
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connector = &intel_connector->base;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,
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connector->name);
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/* Grab the locks before changing connector property*/
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mutex_lock(&connector->dev->mode_config.mutex);
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/* Set connector link status to BAD and send a Uevent to notify
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* userspace to do a modeset.
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*/
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drm_mode_connector_set_link_status_property(connector,
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DRM_MODE_LINK_STATUS_BAD);
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mutex_unlock(&connector->dev->mode_config.mutex);
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/* Send Hotplug uevent so userspace can reprobe */
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drm_kms_helper_hotplug_event(connector->dev);
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}
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bool
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intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
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struct intel_connector *intel_connector)
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@ -5825,10 +5802,6 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
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enum port port = intel_dig_port->port;
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int type;
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/* Initialize the work for modeset in case of link train failure */
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INIT_WORK(&intel_connector->modeset_retry_work,
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intel_dp_modeset_retry_work_fn);
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if (WARN(intel_dig_port->max_lanes < 1,
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"Not enough lanes (%d) for DP on port %c\n",
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intel_dig_port->max_lanes, port_name(port)))
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@ -313,24 +313,6 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp)
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void
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intel_dp_start_link_train(struct intel_dp *intel_dp)
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{
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struct intel_connector *intel_connector = intel_dp->attached_connector;
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if (!intel_dp_link_training_clock_recovery(intel_dp))
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goto failure_handling;
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if (!intel_dp_link_training_channel_equalization(intel_dp))
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goto failure_handling;
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DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane count = %d",
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intel_dp->link_rate, intel_dp->lane_count);
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return;
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failure_handling:
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DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane count = %d",
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intel_dp->link_rate, intel_dp->lane_count);
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if (!intel_dp_get_link_train_fallback_values(intel_dp,
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intel_dp->link_rate,
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intel_dp->lane_count))
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/* Schedule a Hotplug Uevent to userspace to start modeset */
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schedule_work(&intel_connector->modeset_retry_work);
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return;
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intel_dp_link_training_clock_recovery(intel_dp);
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intel_dp_link_training_channel_equalization(intel_dp);
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}
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@ -316,9 +316,6 @@ struct intel_connector {
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void *port; /* store this opaque as its illegal to dereference it */
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struct intel_dp *mst_port;
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/* Work struct to schedule a uevent on link train failure */
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struct work_struct modeset_retry_work;
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};
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struct dpll {
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