From: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Date: Mon, 21 Feb 2011 04:42:02 +0000 (+0100)
Subject: drm/vblank: Enable precise vblank timestamps for interlaced and doublescan modes.
X-Git-Tag: v2.6.38-rc7~48^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9be6f8a978bdcbab46474a125aa4212516b71fe7;p=pandora-kernel.git

drm/vblank: Enable precise vblank timestamps for interlaced and doublescan modes.

Testing showed the current code can already handle doublescan
video modes just fine. A trivial tweak makes it work for interlaced
scanout as well.

Tested and shown to be precise on Radeon rv530, r600 and
Intel 945-GME.

Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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