From: Ma Ling <ling.ma@intel.com>
Date: Sun, 31 May 2009 08:58:32 +0000 (+0800)
Subject: drm/i915: Set correct TV detection voltage level override values
X-Git-Tag: v2.6.31-rc1~356^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cb66c692d1ae257f32dc7f6085cf9cb9f2f6bab8;p=pandora-kernel.git

drm/i915: Set correct TV detection voltage level override values

We detect TV connect status by setting DAC voltage level override
values as 0.7 voltage for DAC_A/B/C. The corresponding 2-bits shold be 0x2,
In order correctly to set last bit as 0, at first we must clean it.

It fixed freedesktop.org bug #21204

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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