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

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Message-ID: <4CCDE4EB.7060001@arndnet.de>
Date:	Sun, 31 Oct 2010 22:51:39 +0100
From:	Arnd Hannemann <arnd@...dnet.de>
To:	Ohad Ben-Cohen <ohad@...ery.com>
CC:	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: regression: b43-sdio: probe of mmc0:0001:1 failed with error
 -16

Hi Ohad,

Am 31.10.2010 20:14, schrieb Ohad Ben-Cohen:

> On Sun, Oct 31, 2010 at 7:16 PM, Arnd Hannemann <arnd@...dnet.de> wrote:
>> b43-sdio: probe of mmc0:0001:1 failed with error -16
> 
> It's exactly what Daniel is experiencing with the XO-1.5.
> 
> In Daniel's scenario, mmc_sdio_init_card() fails because
> mmc_send_relative_addr() returns -110.
> 
> Can you please check out if that's the same thing you have too ?

No, it seems to be the pm_runtime_get_sync in sdio_bus.c::sdio_bus_probe().

If I test with CONFIG_PM_RUNTIME=y and the attached modifications,
then I get this as output:

root@...evb:~# modprobe b43
[   29.859375] cfg80211: Calling CRDA to update world regulatory domain
[   30.226562] pm_runtime_get_sync: -16
[   30.234375] b43-sdio: probe of mmc0:0001:1 failed with error -16
[   30.242187] Broadcom 43xx driver loaded [ Features: LS, Firmware-ID: FW13 ]

If CONFIG_PM_RUNTIME is not set in .config, the problem goes away.

Regards,
Arnd


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