linux-kernel - Re: [PATCH 2/5] drivercore: Add driver probe deferral mechanism

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Message-ID: <20111012070429.GC2080@manju-desktop>
Date:	Wed, 12 Oct 2011 12:34:29 +0530
From:	"G, Manjunath Kondaiah" <manjugk@...com>
To:	Andrei Warkentin <awarkentin@...are.com>
Cc:	Greg KH <greg@...ah.com>, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-omap@...r.kernel.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, Dilan Lee <dilee@...dia.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Manjunath@...per.es, Josh Triplett <josh@...htriplett.org>
Subject: Re: [PATCH 2/5] drivercore: Add driver probe deferral mechanism

On Mon, Oct 10, 2011 at 10:37:22AM -0700, Andrei Warkentin wrote:
> Hi,
> 
> ----- Original Message -----
> > From: "Greg KH" <greg@...ah.com>
> > To: "Josh Triplett" <josh@...htriplett.org>
> > Cc: "G, Manjunath Kondaiah" <manjugk@...com>, linux-arm-kernel@...ts.infradead.org, "Grant Likely"
> > <grant.likely@...retlab.ca>, linux-omap@...r.kernel.org, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
> > "Dilan Lee" <dilee@...dia.com>, "Mark Brown" <broonie@...nsource.wolfsonmicro.com>, Manjunath@...per.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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