From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: Re: [PATCH] sdio: add CD disable support Date: Thu, 30 Jul 2009 13:45:43 +0100 Message-ID: <20090730124543.GF3058@console-pimps.org> References: <1248954848.5396.6.camel@localhost> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <1248954848.5396.6.camel@localhost> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Ohad Ben-Cohen Cc: Andrew Morton , Philip Langdale , ian@mnementh.co.uk, pierre@ossman.eu, linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, nico@cam.org, nicolas.ferre@rfo.atmel.com, hskinnemoen@atmel.com, tony@atomide.com, david-b@pacbell.net, manuel.lauss@gmail.com, mirq-l@jasper.es, Adrian Hunter , Madhusudhan On Thu, Jul 30, 2009 at 02:54:08PM +0300, Ohad Ben-Cohen wrote: > From: Ohad Ben-Cohen > > To save power, the pull-up resistor on CD/DAT[3] (pin 1) > of the card can be disconnected. This is desired, e.g., > with embedded SDIO devices which do not rely on this pin > for card detection. > > Signed-off-by: Ohad Ben-Cohen > --- > drivers/mmc/core/sdio.c | 32 ++++++++++++++++++++++++++++++++ > include/linux/mmc/card.h | 3 ++- > 2 files changed, 34 insertions(+), 1 deletions(-) > Do you have a follow-up patch to make use of this new functionality? I can't see anywhere where disable_cd is set.