From: Chris Ball Subject: Re: regression: b43-sdio: probe of mmc0:0001:1 failed with error -16 Date: Sun, 31 Oct 2010 17:25:12 +0000 Message-ID: <20101031172512.GA20710@void.printf.net> References: <4CCDA454.708@arndnet.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4CCDA454.708-BCMAnToX5e2ELgA04lAiVw@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arnd Hannemann Cc: Ohad Ben-Cohen , "linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-mmc@vger.kernel.org Hi Arnd, On Sun, Oct 31, 2010 at 06:16:04PM +0100, Arnd Hannemann wrote: > on todays Linus' git (v2.6.36-9871-g3985c7c) b43 sdio stopped working. > It was working on (v2.6.36-6794-g12ba8d1). > > b43-sdio: probe of mmc0:0001:1 failed with error -16 > > The error seems to originate from the following code in drivers/mmc/core/sdio_bus.c:sdio_bus_probe() > > 135 ret = pm_runtime_get_sync(dev); > 136 if (ret < 0) > 137 goto out; > > so I suspect this has something to do with the following commit: > > commit 40bba0c1ca83a370f749c8bc9afda71cf79ebd91 > Author: Ohad Ben-Cohen > Date: Sat Oct 2 13:54:11 2010 +0200 > > mmc: sdio: enable runtime PM for SDIO functions > > However, simply reverting 40bba0c1ca83a370f749c8bc9afda71cf79ebd91 does not work because then > modprobe hangs. > > Tested on AP4EVB (arm) with tmio_mmc. Any ideas? We've been discussing this on the linux-mmc@ list: http://thread.gmane.org/gmane.linux.kernel.mmc/4342 Until we have a fix, you should be able to get SDIO working again by reverting all nine commits between 1978fda85d..ed2a978594. Thanks, -- Chris Ball One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html