From mboxrd@z Thu Jan  1 00:00:00 1970
From: Adam Belay <ambx1@neo.rr.com>
Subject: Re: [PATCH] PCI: Add pci shutdown ability
Date: Mon, 25 Apr 2005 16:24:55 -0400
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To: Greg KH <greg@kroah.com>
Cc: akpm@osdl.org, Amit Gud <gud@eth.net>, USB development list <linux-usb-devel@lists.sourceforge.net>, Pavel Machek <pavel@ucw.cz>, Linux-pm mailing list <linux-pm@lists.osdl.org>, linux-pci@atrey.karlin.mff.cuni.cz, jgarzik@pobox.com, linux-kernel@vger.kernel.org, cramerj@intel.com
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On Mon, Apr 25, 2005 at 01:19:49PM -0700, Greg KH wrote:
> On Mon, Apr 25, 2005 at 04:08:25PM -0400, Adam Belay wrote:
> > I think this could be important for any type of device, so the power
> > management subsystem and driver core should handle it.  I'm not really
> > sure if it's useful in pci alone, as it lacks the necessary ordering and
> > coordination.
> 
> The driver core today _does_ handle this properly, and in the correct
> order.  I'm just allowing pci drivers access to that functionality, as
> today they can not take advantage of it.  That's all this patch does.

sorry, I didn't notice this after a quick glance :)

> +       drv->driver.shutdown = pci_device_shutdown,

Ok, great.  I understand.

> 
> > I'm currently developing an interface for quieting devices without turning
> > them off in my Power Management model.  Pavel seems to also have plans along
> > those lines:
> 
> <snip>

I think the intention here may have been to use PM_FREEZE via *suspend.  It
isn't currently supported though.

> 
> Great, then it will tie into the current driver model code, which will
> then call the proper pci driver code, and everyone will be happy :)
> 
> thanks,
> 
> greg k-h

Thanks,
Adam

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