[Intel-gfx] More eDP mode setting fixes

[Adam Jackson]

On Wed, 2010-08-18 at 12:00 -0700, Jesse Barnes wrote:
> This set replaces the last one, and includes an additional patch to fix
> our vblank wait code, which is apparently important especially when
> dealing with link training.

I always did hate that msleep.

Reviewed-by: Adam Jackson <ajax at redhat.com>

for the series.

- ajax
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