linux-kernel - Re: NAK new drivers without proper power management?

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Message-Id: <1171236787.4493.132.camel@nigel.suspend2.net>
Date:	Mon, 12 Feb 2007 10:33:06 +1100
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Manu Abraham <abraham.manu@...il.com>
Cc:	Willy Tarreau <w@....eu>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Pavel Machek <pavel@....cz>,
	Arjan van de Ven <arjan@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>, tilman@...p.cc
Subject: Re: NAK new drivers without proper power management?

Hi.

On Mon, 2007-02-12 at 03:25 +0400, Manu Abraham wrote:
> On 2/12/07, Nigel Cunningham <nigel@...el.suspend2.net> wrote:
> > Hi.
> >
> > On Mon, 2007-02-12 at 02:57 +0400, Manu Abraham wrote:
> > > On 2/12/07, Nigel Cunningham <nigel@...el.suspend2.net> wrote:
> > >
> > > > Neither am I. I'm just asking that new drivers have power management as
> > > > standard.
> >
> > > What if the hardware doesn't support power management ?
> >
> > You would still want to do the cleanup and configuration that you'd do
> > for module load/unload.
> >
> By adding dummy functions, wouldn't that just look awkward ?

If all you need to do is say 'I don't need to do anything' and we have a
shared function that does that, all we're talking about doing is adding
to your struct pci_device (or whatever)

.resume = generic_empty_resume;

To me at least, that doesn't look awkward, and says cleanly and clearly
that you've checked things over and decided you know what's required.

Regards,

Nigel

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