[Intel-gfx] [PATCH] restore render clock gating on resume

[Andrew Lutomirski]

On Thu, Nov 5, 2009 at 5:21 PM, Eric Anholt <eric at anholt.net> wrote:
> On Fri, 2009-10-30 at 02:41 -0400, Andrew Lutomirski wrote:
>> The render clock gating mode currently isn't restored when resuming,
>> which causes high power consumption after a suspend/resume cycle on my
>> laptop.
>>
>> Signed-off-by: Andy Lutomirski <luto at mit.edu>
>
> This looks pretty good, except that you're unconditionally
> saving/restoring these regs, even though they only exist on gen4
> hardware.  Could you fix it up to save/restore them for the same set of
> hardware that the regs get set for?

Sure.  Or I can just call intel_init_clock_gating on resume.  Any preference?

--Andy

>
> --
> Eric Anholt
> eric at anholt.net                         eric.anholt at intel.com
>
>
>