From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: Colibri PXA320 Power management question
Date: Mon, 6 Sep 2010 12:30:37 +0100 [thread overview]
Message-ID: <20100906113036.GG10367@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <AANLkTin3=pVMpSjtof_mLtMQGL-84qJZMCnfb-0xKfab@mail.gmail.com>
On Mon, Sep 06, 2010 at 07:09:44PM +0800, Eric Miao wrote:
> On Mon, Sep 6, 2010 at 6:13 PM, Mark Brown
> > That'd be slightly entertaining, though, since IIRC the hardware
> > implementation isn't really set up for being constrained - it doesn't
> > expect to be cooperating with software governors.
> It doesn't need to. There is actually an internal command table, and
> not really sure about the mapping scheme though, but when software
> then has only to care about the frequencies, and voltages will be
> adjusted accordingly.
Ah, I'm misremembering the PXA implementation for the i.MX one - the
i.MX version of this feature had a governor rather than just doing a
lookup from the frequency to a voltage.
next prev parent reply other threads:[~2010-09-06 11:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-12 10:02 Colibri PXA320 Power management question Yuri Ludkevich
2010-08-14 6:53 ` [Openpxa-users] " Marek Vasut
2010-08-15 2:06 ` Eric Miao
2010-08-15 9:13 ` Igor Grinberg
2010-08-15 9:16 ` Eric Miao
2010-09-02 14:22 ` Mark Brown
2010-09-02 14:41 ` Mike Rapoport
2010-09-02 15:27 ` Mark Brown
2010-09-02 15:43 ` Mike Rapoport
2010-09-04 2:31 ` [Openpxa-users] " Marek Vasut
2010-09-06 10:13 ` Mark Brown
2010-09-06 11:06 ` Mike Rapoport
2010-09-06 11:09 ` Eric Miao
2010-09-06 11:30 ` Mark Brown [this message]
2010-09-06 11:42 ` Haojian Zhuang
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