tree c707469433b04eaf3e1ed245d51c301b4eb1274e
parent 541998a18b72d2cac48b3369fa4540116ff3f0a8
author Ma Ling <ling.ma@intel.com> 1243760312 +0800
committer Eric Anholt <eric@anholt.net> 1244206406 +0000

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>