[Intel-gfx] [RFC/RFT] Reduced refresh for ILK+

[Jesse Barnes]

On Mon, 10 Jan 2011 15:38:54 -0800
Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

> Here's my attempt at adding reduced refresh rate support to ILK+.  I had
> to make some changes to the DP code to properly fetch the EDID when
> possible, and refactor a lot of the mode setting code to accomodate
> reduced refresh calculations for ILK+, obviously I didn't split things
> into as many commits as I should have.
> 
> Please review & test, I need suggestions on how to split up the commits.

Oh, as for power savings with these patches, they were hard to
measure.  Somewhere on the order of 0.1-0.3W, but more measurement is
needed.  Also, ignore 2/2, I left in some debug code, update will
follow in reply.

-- 
Jesse Barnes, Intel Open Source Technology Center