drm/i915: Only WARN about a stuck hotplug irq ONCE
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 10 Jan 2014 18:49:20 +0000 (18:49 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 10 Jan 2014 21:26:15 +0000 (22:26 +0100)
commit3432087ef846d760427eceff0ff4e7d0a2565b8a
treee5cd87628660ca84f11d50e35b3d59b076442c0f
parent704cfb87886cddffd79e78ea5f717963dac68175
drm/i915: Only WARN about a stuck hotplug irq ONCE

It seems that hardware that is broken enough to emit a hotplug IRQ even
though the pin is surposedly disable, will do so indefinitely.

Note: There's a good chance the underlying issue has been fixed with

commit 0ce99f749b3834edeb500e17d6ad17e86b60ff83
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Jul 26 11:27:49 2013 +0200

    drm/i915: fix gen4 digital port hotplug definitions

References: https://bugzilla.redhat.com/show_bug.cgi?id=1051170
Link: https://bugzilla.redhat.com/attachment.cgi?id=847786
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add note about the potential fix.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_irq.c