From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Pitre <nico@fluxnic.net>
Subject: Re: MMC runtime PM patches break libertas probe
Date: Wed, 17 Nov 2010 09:54:24 -0500 (EST)
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To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Mike Rapoport <mike@compulab.co.il>, Daniel Drake <dsd@laptop.org>, Arnd Hannemann <arnd@arndnet.de>, Chris Ball <cjb@laptop.org>, linux-mmc@vger.kernel.org, libertas-dev@lists.infradead.org

On Wed, 17 Nov 2010, Ohad Ben-Cohen wrote:

> On Wed, Nov 17, 2010 at 8:46 AM, Mike Rapoport <mike@compulab.co.il> wrote:
> > On our platforms we just keep it powered on after boot with the reset line held
> > high. (e.g. arch/arm/mach-pxa/cm-x300.c, arch/arm/mach-omap/board-cm-t35.c).
> > We don't bother much for power savings, though.
> 
> Thanks, Mike !
> 
> This paves the road for MMC_CAP_POWER_OFF_CARD.
> 
> SDIO core will enable runtime PM for the card only if that cap is set.
> As a result, the card will be powered down after boot, and will only
> be powered up again when a driver is loaded (and then it's up to the
> driver whether power will be kept or not).

Makes sense.


Nicolas