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

[Chris Wilson]

On Mon, Jan 19, 2015 at 01:50:47PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> 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 at linux.intel.com>

I do like this patch for its documentary though.
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre