[PATCH 2/5] drivercore: Add driver probe deferral mechanism

G, Manjunath Kondaiah manjugk at ti.com
Wed Oct 12 03:04:29 EDT 2011


On Mon, Oct 10, 2011 at 10:37:22AM -0700, Andrei Warkentin wrote:
> Hi,
> 
> ----- Original Message -----
> > From: "Greg KH" <greg at kroah.com>
> > To: "Josh Triplett" <josh at joshtriplett.org>
> > Cc: "G, Manjunath Kondaiah" <manjugk at ti.com>, linux-arm-kernel at lists.infradead.org, "Grant Likely"
> > <grant.likely at secretlab.ca>, linux-omap at vger.kernel.org, linux-mmc at vger.kernel.org, linux-kernel at vger.kernel.org,
> > "Dilan Lee" <dilee at nvidia.com>, "Mark Brown" <broonie at opensource.wolfsonmicro.com>, Manjunath at jasper.es
> > Sent: Saturday, October 8, 2011 11:55:02 AM
> > Subject: Re: [PATCH 2/5] drivercore: Add driver probe deferral mechanism
> > 
> 
> I'm a bit of a fly on the wall here, but I'm curious how this impacts suspend/resume.
> device_initialize->device_pm_init are called from device_register, so certainly this
> patch doesn't also ensure that the PM ordering matches probe ordering, which is bound
> to break suspend, right? Was this ever tested with the OMAP target? Shouldn't the
> PM change be also part of this patch set? I don't see why you would want to have this in
> without the PM changes.

suspend/resume handling is already in TODO list:
http://permalink.gmane.org/gmane.linux.ports.arm.kernel/135461

-M

> 
> Maybe I have it all wrong though :-).
> 
> A



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