[Intel-gfx] [PATCH] drm/i915: flush plane control changes on ILK+ as well

[Keith Packard]

On Thu, 28 Jul 2011 11:52:45 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

> After writing to the plane control reg we need to write to the surface
> reg to trigger the double buffered register latch.  On previous
> chipsets, writing to DSPADDR was enough, but on ILK+ DSPSURF is the reg
> that triggers the double buffer latch.

Yup, that's what the docs say too. And, it fixes the stripey-monitor bug
nicely.

Thanks jbarnes!

Reviewed-by: Keith Packard <keithp at keithp.com>
Tested-by: Keith Packard <keithp at keithp.com>

-- 
keith.packard at intel.com
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