From: Matt Porter <porter@cox.net>
To: Dan Malek <dan@embeddededge.com>
Cc: Tom Rini <trini@kernel.crashing.org>,
linuxppc-dev <linuxppc-dev@lists.linuxppc.org>
Subject: Re: [RFC/PATCH] idle loop changes
Date: Wed, 31 Jul 2002 14:33:57 -0700 [thread overview]
Message-ID: <20020731143357.C5793@home.com> (raw)
In-Reply-To: <3D4847D5.9030404@embeddededge.com>; from dan@embeddededge.com on Wed, Jul 31, 2002 at 04:25:57PM -0400
On Wed, Jul 31, 2002 at 04:25:57PM -0400, Dan Malek wrote:
>
> Tom Rini wrote:
>
> > I'm not totally sure if it's better to do it this way, or to not provide
> > a default power_save(), so that if we don't set pm_idle to something, we
> > just never call power_save() (as opposed to a call, check for a bit &
> > return). Comments?
>
> I think whether we force everything to have a power_save() function,
> even if it is empty, or initialize a pointer and have an indirect call
> doesn't make much difference. What does make a difference, is there could
> be power save functions that are unique to a board. Some processors have
> power save options that can cause a lower frequency clock to be used which
> will affect external devices. In such cases, the devices on a board may
> need some adjustment when these power save modes are entered/exited.
So, some new machdep calls that you can populate on a per board basis?
Are you just talking about them being used upon entering/exiting idle?
Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-07-31 21:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-31 19:32 [RFC/PATCH] idle loop changes Tom Rini
2002-07-31 20:25 ` Dan Malek
2002-07-31 20:38 ` Tom Rini
2002-07-31 20:41 ` Tom Rini
2002-07-31 21:33 ` Matt Porter [this message]
2002-07-31 21:29 ` Dan Malek
2002-07-31 21:48 ` Mark A. Greer
2002-07-31 22:23 ` Dan Malek
2002-08-01 0:11 ` Tom Rini
2002-07-31 21:24 ` Matt Porter
2002-08-01 0:09 ` Tom Rini
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