linux-kernel - Re: [PATCH] powerpc: Enable DEEPNAP power savings mode on 970MP

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Message-ID: <20061005092115.6948663f@localhost.localdomain>
Date:	Thu, 5 Oct 2006 09:21:15 -0500
From:	Olof Johansson <olof@...om.net>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	paulus@...ba.org, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc: Enable DEEPNAP power savings mode on 970MP

On Thu, 05 Oct 2006 15:34:24 +1000 Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:

> Isn't deep nap supposed to only get entered from F/4 which we never
> use ?
> 
> Ben confused...

Nope.

The User Manual clearly talks about going in/out of deep nap from the
different powertune frequencies, see for example section 6.4.2 and 9.4.2.


-Olof
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