Re: regression: b43-sdio: probe of mmc0:0001:1 failed with error -16

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Am 31.10.2010 18:16, schrieb Arnd Hannemann:

> 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@xxxxxxxxxx>
> 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?

FYI:

disabling CONFIG_PM_RUNTIME in my config seems to fix the issue for me.

Best regards,
Arnd
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