linux-kernel - Re: [Intel-gfx] PCH reference clock cleanups

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Date:	Mon, 03 Oct 2011 16:18:48 -0700
From:	Keith Packard <keithp@...thp.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Paulo Zanoni <przanoni@...il.com>
Cc:	Dave Airlie <airlied@...hat.com>, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Intel-gfx] PCH reference clock cleanups

On Mon, 3 Oct 2011 14:14:23 -0700, Jesse Barnes <jbarnes@...tuousgeek.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.

-- 
keith.packard@...el.com

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