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authorDavid Weinehall <david.weinehall@linux.intel.com>2016-08-17 15:47:48 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-31 04:13:58 -0600
commitcbadb9d9de33960d1d735944adac6de4123378ef (patch)
treec62bf84bd138e8e0fef15a5d63d4e4d4b85005a3 /arch
parenta768ae1daea31b549e2401caca543adb9f225ef5 (diff)
Revert "drm/i915: Check live status before reading edid"
commit 23f889bdf6ee5cfff012d8b09f6bec920c691696 upstream. This reverts commit 237ed86c693d8a8e4db476976aeb30df4deac74b. Our current implementation of live status check (repeat 9 times with 10ms delays between each attempt as a workaround for buggy displays) imposes a rather serious penalty, time wise, on intel_hdmi_detect(). Since we we already skip live status checks on platforms before gen 7, and since we seem to have coped quite well before the live status check was introduced for newer platforms too, the previous behaviour is probably preferable, at least unless someone can point to a use-case that the live status check improves (apart from "Bspec says so".) Signed-off-by: David Weinehall <david.weinehall@linux.intel.com> Fixes: 237ed86c693d ("drm/i915: Check live status before reading edid") Fixes: f8d03ea0053b ("drm/i915: increase the tries for HDMI hotplug live status checking") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97139 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94014 Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160817124748.31208-1-david.weinehall@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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