From: "Piotr Haber" <phaber@broadcom.com>
To: "Hauke Mehrtens" <hauke@hauke-m.de>
Cc: "Rafal Milecki" <zajec5@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: bcma: trouble with gpio
Date: Fri, 25 Jan 2013 10:26:46 +0100 [thread overview]
Message-ID: <51024FD6.7060407@broadcom.com> (raw)
In-Reply-To: <50FAD54F.8080601@hauke-m.de>
On 01/19/13 18:18, Hauke Mehrtens wrote:
> On 01/18/2013 03:33 PM, Piotr Haber wrote:
>> Hi,
>>
>> I turned GPIO support in bcma (CONFIG_BCMA_DRIVER_GPIO)
>> and get this in log:
>>
>> bcma: bus0: Found chip with id 0xA8D8, rev 0x01 and package 0x0A
>> bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x22, class 0x0)
>> bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x17, class 0x0)
>> bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x0F, class 0x0)
>> bcma: bus0: Found rev 6 PMU (capabilities 0x108C2606)
>> bcma: bus0: SPROM offset 0x830
>> bcma: bus0: PMU resource config unknown or not needed for device 0xA8D8
>> gpiochip_add: gpios -1..14 (bcma_gpio) failed to register
>> bcma: bus0: Error registering GPIO driver: -28
>> bcma: bus0: Bus registered
>> bcma: bus1: Found chip with id 0x4313, rev 0x01 and package 0x08
>> bcma: bus1: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
>> bcma: bus1: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
>> bcma: bus1: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
>> bcma: bus1: Found rev 8 PMU (capabilities 0x084C3008)
>> bcma: bus1: SPROM offset 0x830
>> gpiochip_add: gpios -1..14 (bcma_gpio) failed to register
>> bcma: bus1: Error registering GPIO driver: -28
>> bcma: bus1: Bus registered
>> bcma: bus2: Found chip with id 0x4313, rev 0x01 and package 0x08
>> bcma: bus2: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
>> bcma: bus2: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
>> bcma: bus2: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
>> bcma: bus2: Found rev 8 PMU (capabilities 0x084C3008)
>> bcma: bus2: SPROM offset 0x830
>> gpiochip_add: gpios -1..14 (bcma_gpio) failed to register
>> bcma: bus2: Error registering GPIO driver: -28
>> bcma: bus2: Bus registered
>>
>> does that mean that gpio is not usable?
>
> At least it is not usable through the standard linux gpio interface.
>
>> what might be the problem?
>
> Is this -28 (ENOSPC) originally returned in gpiochip_find_base() in
> drivers/gpio/gpiolib.c?
> I have no idea what's going wrong here, could you provide me with your
> kernel config and what kernel version are you using?
>
i'm on v3.8-rc2,
will update to latest wireless-testing and give it a try again
next prev parent reply other threads:[~2013-01-25 9:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-18 14:33 bcma: trouble with gpio Piotr Haber
2013-01-19 17:18 ` Hauke Mehrtens
2013-01-25 9:26 ` Piotr Haber [this message]
2013-01-30 12:39 ` Piotr Haber
2013-02-03 22:46 ` Hauke Mehrtens
2013-02-04 9:37 ` Piotr Haber
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