Patch "drm/i915: Refresh that status of MST capable connectors in ->detect()" has been added to the 4.8-stable tree

This is a note to let you know that I've just added the patch titled

    drm/i915: Refresh that status of MST capable connectors in ->detect()

to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-i915-refresh-that-status-of-mst-capable-connectors-in-detect.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <[email protected]>
Date: Fri, 21 Oct 2016 16:44:38 +0300
Subject: drm/i915: Refresh that status of MST capable connectors in ->detect()
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From: Ville Syrjälä <[email protected]>

commit fc22b787890f9f9067fd130feec42297a4ee62ba upstream.

Once we've determined that the sink is MST capable we never end up running through the full detect cycle again, despite getting HPDs. Fix tht by ripping out the incorrect piece of code responsible.

This got broken when I moved the long HPD handling to the ->detect() hook, but failed to remove the leftover code.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98323

References: https://bugs.freedesktop.org/show_bug.cgi?id=98306

---
 drivers/gpu/drm/i915/intel_dp.c |   10 ----------
 1 file changed, 10 deletions(-)

@@ -4323,21 +4323,11 @@ static enum drm_connector_status
 intel_dp_detect(struct drm_connector *connector, bool force)
 {
 	struct intel_dp *intel_dp = intel_attached_dp(connector);
-	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
-	struct intel_encoder *intel_encoder = &intel_dig_port->base;
 	enum drm_connector_status status = connector->status;
 
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
 		      connector->base.id, connector->name);
 
-	if (intel_dp->is_mst) {
-		/* MST devices are disconnected from a monitor POV */
-		intel_dp_unset_edid(intel_dp);
-		if (intel_encoder->type != INTEL_OUTPUT_EDP)
-			intel_encoder->type = INTEL_OUTPUT_DP;
-		return connector_status_disconnected;
-	}
-
 	/* If full detect is not performed yet, do a full detect */
 	if (!intel_dp->detect_done)
 		status = intel_dp_long_pulse(intel_dp->attached_connector);

Patches currently in stable-queue which might be from [email protected] are

queue-4.8/drm-i915-refresh-that-status-of-mst-capable-connectors-in-detect.patch queue-4.8/drm-i915-assume-non-dp-port-if-dvo_port-is-hdmi-and-there-s-no-aux-ch-specified-in-the-vbt.patch