[Intel-gfx] [PATCH 1/4] drm/i915: Configure the TV sense state correctly on GM45 to make TV detection reliable

[Zhenyu Wang]

On 2010.04.07 10:17:18 -0400, Adam Jackson wrote:
> On Wed, 2010-04-07 at 17:11 +0800, Zhenyu Wang wrote:
> > From: ykzhao <yakui.zhao at intel.com>
> > 
> > The TV detection logic is not reliable on the Cantiga platform.
> > Sometimes the TV will be misdetected as the following two cases:
> > - TV is misdetected on some laptops. e.g. There is no TV connector
> > port or no TV is attached. But the TV is shown as connected.
> > - TV connector type is misdetected. e.g. the component TV is
> > attached, but the TV is shown as S-video type.
> > 
> > According to the hardware requirement, the TV sense state bits of TV DAC
> > register should be cleared to zero on Cantiga platfrom.
> 
> Is it worth doing this for all platforms?  Seems like it can't hurt.
> 

As far as we know, only GM45 requires low level for sense control, it's
a special case.

-- 
Open Source Technology Center, Intel ltd.

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