From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Stern <stern@rowland.harvard.edu>
Subject: Re: subtle pm_runtime_put_sync race and sdio functions
Date: Sat, 18 Dec 2010 16:30:18 -0500 (EST)
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To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: linux-mmc@vger.kernel.org, linux-wireless@vger.kernel.org, Johannes Berg <johannes@sipsolutions.net>, Linux-pm mailing list <linux-pm@lists.linux-foundation.org>, Ido Yariv <ido@wizery.com>
List-Id: linux-pm@vger.kernel.org

On Sat, 18 Dec 2010, Ohad Ben-Cohen wrote:

> > Sounds to me like the difference isn't really in the driver, but the
> > core PM subsystem. Why does it care when powering off a device whether
> > it's during suspend, or during runtime?
> 
> Agree.
> 
> If we can add a dev_pm_info bit, that would allow using runtime PM API
> during suspend/resume transitions, the driver will not have to care.
> 
> Rafael what do you think ? Is that totally unacceptable ?

Have you forgotten about the "echo on >.../power/control" scenario?

Alan Stern