[PATCH] pinctrl: imx1-core populate subdevices

[Chris Ruehl]

On Wednesday, November 27, 2013 03:31 PM, Markus Pargmann wrote:
> Hi,
>
> On Wed, Nov 27, 2013 at 11:33:15AM +0800, Chris Ruehl wrote:
>> On Wednesday, November 20, 2013 04:01 AM, Linus Walleij wrote:
>>> On Mon, Nov 11, 2013 at 7:19 PM, Markus Pargmann<mpa at pengutronix.de>   wrote:
>>>
>>>> Support gpio devicetree subnodes to allow a more detailed DT hardware
>>>> description.
>>>>
>>>> Signed-off-by: Markus Pargmann<mpa at pengutronix.de>
>>>
>>> Looks good to me.
>>>
>>> Tentatively applied this, the DT people may want to say something
>>> about this.
>>>
>>> Yours,
>>> Linus Walleij
>>> --
>>
>> Hi,
>>
>> I tried the new configuration but the kernel oops when probing the
>> dm9000 caused by insufficient resources more likely the real reason
>> that somehow the gpio6: triggers a problem
>>
>>
>> [    0.115718] irq: no irq domain found for
>> /soc/aipi at 10000000/iomuxc at 10015000/gpio at 10015500 !
>> [    0.115768] ------------[ cut here ]------------
>> [    0.115853] WARNING: CPU: 0 PID: 1 at drivers/of/platform.c:171
>> of_device_alloc+0x110/0x15c()
>> [    0.117824] ---[ end trace 0e10ae727e6e0ab1 ]---
>> [    0.121236] Failed to request board ext/int gpios
>> [    0.152712] imx27-pinctrl 10015000.iomuxc: initialized IMX pinctrl driver
>
> The imx27-pinctrl driver seems to be initialized after the irq is
> requested. So this issue should be the same as in [1].
>
> Regards,
>
> Markus

Markus,

Thank you for point this out!  I patched the Linux-next and
my problems went away. I will test now a bit more..

Cheers
Chris

>
> [1] [PATCH] of/platform: Fix no irq domain found errors when populating interrupts
> http://archive.arm.linux.org.uk/lurker/message/20131123.004335.61d5c21b.en.html
>
>>
>>
>> iomuxc: iomuxc at 10015000 {
>>          compatible = "fsl,imx27-iomuxc";
>>          reg =<0x10015000 0x600>;
>>          #address-cells =<1>;
>>          #size-cells =<1>;
>>          ranges;
>>
>>          gpio1: gpio at 10015000 {
>>               compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
>>               reg =<0x10015000 0x100>;
>>               interrupts =<8>;
>>               gpio-controller;
>>               #gpio-cells =<2>;
>>               interrupt-controller;
>>               #interrupt-cells =<2>;
>>          };
>> ...
>>          gpio6: gpio at 10015500 {
>>               compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
>>               reg =<0x10015500 0x100>;
>>               interrupts =<8>;
>>               gpio-controller;
>>               #gpio-cells =<2>;
>>               interrupt-controller;
>>               #interrupt-cells =<2>;
>>          };
>> };
>>
>> Kernel Linux version 3.13.0-rc1-next-20131125-dirty
>>
>> With kind regards
>> Chris
>>
>>
>

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