[Intel-gfx] [PATCH] drm/i915: the PCH reference clocks are global, so dont clobber unconditionally

[Chris Wilson]

On Fri,  4 Feb 2011 13:57:30 -0800, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> The PCH can drive several reference clocks simultaneously, and needs to
> with multiple display configurations.  So we can't just clobber the
> existing state everytime we set a mode, we need to take into account
> what the other CRTCs are doing at the time.
> 
> Doing so fixes an issue where you'd lose the LVDS display at boot if you
> had an LVDS+DP config.

This fixes the warning, but sadly the U160 still does not work correctly.
A step in the right direction, we now have VGA!

Applied to -next, thanks.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre