From: Matthew Garrett <mjg@redhat.com>
Date: Tue, 12 Jul 2011 22:30:52 +0000 (-0400)
Subject: i915: Fix opregion notifications
X-Git-Tag: v3.1-rc1~230^2~18^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5a3d0c4086d1854cbda545092c462b84cba20ce;p=pandora-kernel.git

i915: Fix opregion notifications

opregion-based platforms will send ACPI video event 0x80 for a range of
notification types for legacy compatibility. This is interpreted as a
display switch event, which may not be appropriate in the circumstances.
When we receive such an event we should make sure that the platform is
genuinely requesting a display switch before passing that event through
to userspace.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tested-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
---

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