From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri, 26 Mar 2010 18:07:15 +0000 (+0000)
Subject: drm: make sure vblank interrupts are disabled at DPMS time
X-Git-Tag: v2.6.34-rc6~29^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e32ee7fa54e3172e6413cefaaee9222a3f521617;p=pandora-kernel.git

drm: make sure vblank interrupts are disabled at DPMS time

When we call drm_vblank_off() at DPMS off time (to wake any clients so
they don't hang) we need to make sure interrupts are actually disabled.
If drm_vblank_off() gets called before the vblank usage timer expires,
it'll prevent the timer from disabling interrupts since it also clears
the vblank_enabled flag for the pipe.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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