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| /openbmc/linux/drivers/gpu/drm/i915/ |
| H A D | i915_irq.c | diff bc5ead8c09b51e85d110132495a9bfa58dc39dab Tue May 07 07:10:29 CDT 2013 Jani Nikula <jani.nikula@intel.com> drm/i915: fix hotplug event bit tracking
commit 142e239849c800f9dc23f828762873073f612d3f
Author: Egbert Eich <eich@suse.de>
Date: Thu Apr 11 15:57:57 2013 +0200
drm/i915: Add bit field to record which pins have received HPD events (v3)
added a bit field for hotplug event tracking. There ended up being three
different v3 of the patch: [1], [2], and [3]. Apparently [1] was the
correct one, but some frankenstein combination of the three got
committed, which reversed the logic for setting the hotplug bits and
misplaced a continue statement, skipping the hotplug irq storm handling
altogether.
This lead to broken hotplug detection, bisected to
commit 321a1b3026ea194dd084cf3bda1e235b2986b0af
Author: Egbert Eich <eich@suse.de>
Date: Thu Apr 11 16:00:26 2013 +0200
drm/i915: Only reprobe display on encoder which has received an HPD event (v2)
which uses the incorrectly set hotplug event bits.
Fix the mess.
[1] http://mid.gmane.org/1366112220-7638-6-git-send-email-eich@suse.de
[2] http://mid.gmane.org/1365688677-13682-1-git-send-email-eich@suse.de
[3] http://mid.gmane.org/1365688996-13874-1-git-send-email-eich@suse.de
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff 321a1b3026ea194dd084cf3bda1e235b2986b0af Thu Apr 11 09:00:26 CDT 2013 Egbert Eich <eich@suse.de> drm/i915: Only reprobe display on encoder which has received an HPD event (v2)
Instead of calling into the DRM helper layer to poll all connectors for
changes in connected displays probe only those connectors which have
received a hotplug event.
v2: Resolved conflicts with changes in previous commits.
Renamed function and and added a WARN_ON() to warn of
intel_hpd_irq_event() from being called without
mode_config.mutex held - suggested by Jani Nikula.
Signed-off-by: Egbert Eich <eich@suse.de>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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