Messages in this thread | | | Date | Sun, 31 Oct 2010 17:25:12 +0000 | From | Chris Ball <> | Subject | Re: regression: b43-sdio: probe of mmc0:0001:1 failed with error -16 |
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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 <ohad@wizery.com> > 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 <cjb@laptop.org> <http://printf.net/> One Laptop Per Child
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