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From 1aab956c7b8872fb6976328316bfad62c6e67cf8 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
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Date: Fri, 21 Oct 2016 16:44:38 +0300
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Subject: [PATCH] drm/i915: Refresh that status of MST capable connectors in
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->detect()
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Once we've determined that the sink is MST capable we never end up
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running through the full detect cycle again, despite getting HPDs.
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Fix tht by ripping out the incorrect piece of code responsible.
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This got broken when I moved the long HPD handling to the ->detect()
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hook, but failed to remove the leftover code.
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Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
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Cc: drm-intel-fixes@lists.freedesktop.org
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Cc: Rui Tiago Matos <tiagomatos@gmail.com>
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Tested-by: Rui Tiago Matos <tiagomatos@gmail.com>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98323
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Cc: Kirill A. Shutemov <kirill@shutemov.name>
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Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
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References: https://bugs.freedesktop.org/show_bug.cgi?id=98306
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Fixes: 27d4efc5591a ("drm/i915: Move long hpd handling into the hotplug work")
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Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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Link: http://patchwork.freedesktop.org/patch/msgid/1477057478-29328-1-git-send-email-ville.syrjala@linux.intel.com
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Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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---
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drivers/gpu/drm/i915/intel_dp.c | 10 ----------
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1 file changed, 10 deletions(-)
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diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
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index f30db8f..80db8a3 100644
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--- a/drivers/gpu/drm/i915/intel_dp.c
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+++ b/drivers/gpu/drm/i915/intel_dp.c
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@@ -4492,21 +4492,11 @@ static enum drm_connector_status
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intel_dp_detect(struct drm_connector *connector, bool force)
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{
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struct intel_dp *intel_dp = intel_attached_dp(connector);
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- struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
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- struct intel_encoder *intel_encoder = &intel_dig_port->base;
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enum drm_connector_status status = connector->status;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, connector->name);
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- if (intel_dp->is_mst) {
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- /* MST devices are disconnected from a monitor POV */
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- intel_dp_unset_edid(intel_dp);
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- if (intel_encoder->type != INTEL_OUTPUT_EDP)
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- intel_encoder->type = INTEL_OUTPUT_DP;
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- return connector_status_disconnected;
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- }
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-
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/* If full detect is not performed yet, do a full detect */
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if (!intel_dp->detect_done)
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status = intel_dp_long_pulse(intel_dp->attached_connector);
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--
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2.7.4
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