Re: [PATCH 1/7] drm/i915: Disable RC6 before configuring in on VLV/CHV

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On Mon, Jan 19, 2015 at 01:50:47PM +0200, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Follow the sequence in the BIOS spec and clear the RC_CONTROL register
> before changing any of the other RC6/RP registers.

Hmm, we do disable RC_CONTROL except for a very notable absence of
santiizing register state following a reset.

> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

I do like this patch for its documentary though.
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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