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From: Keith Packard <keithp@keithp.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>, Paulo Zanoni <przanoni@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>, intel-gfx@lists.freedesktop.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [Intel-gfx] PCH reference clock cleanups
In-Reply-To: <20111003141423.0ff5447c@jbarnes-desktop>
References: <yunbou6lxb4.fsf@aiko.keithp.com> <1317103906-4649-1-git-send-email-keithp@keithp.com> <CA+gsUGTZfxt2L9mT-kYGGKiYhtRKn2xO5tXperwAWLVi2mKeOQ@mail.gmail.com> <20111003141423.0ff5447c@jbarnes-desktop>
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Date: Mon, 03 Oct 2011 16:18:48 -0700
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On Mon, 3 Oct 2011 14:14:23 -0700, Jesse Barnes <jbarnes@virtuousgeek.org> =
wrote:

> Now... is keeping the various refclks enabled costing us any power?
> IOW, should we be trying to disable them when everything has been
> DPMS'd off too?

That's the same as tracking usage and enabling/disabling on the fly as
modes are set. I think it's possible, but I'd like to have the 'simpler'
fix present before we try a power saving move.

=2D-=20
keith.packard@intel.com

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