Javi's SDIO ks7010 wifi support patch

Lars-Peter Clausen lars at metafoo.de
Tue Dec 15 06:17:03 EST 2009


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Javi Roman wrote:
> On Mon, Dec 14, 2009 at 11:14 AM, Javi Roman
> <javiroman at kernel-labs.org> wrote:
>> On Mon, Dec 14, 2009 at 10:56 AM, Mirko Lindner
>> <mirko at sharism.cc> wrote:
>>> Hey Javi,
>>>
>>> how is the WiFi stuff coming along? Anything we can test and
>>> see in action? Am really curious to see how it feels to have
>>> WiFi on the Ben and toy with online apps.
>>>
>>> /mirko
>>>
>> The ks7010_sdio driver worked fine with the jz_mmc old driver,
>> however I'm getting problems with the new jz_mmc.c host driver, I
>> hope this week everything will be solved.
>>
>> I can send a patch with the ks7010 integrated in the kernel tree
>> (with a few changes), anyway it's not the final version.
>>
>> -- Javi Roman
>>
>
> The ks7010 wifi driver is working again. However I have had to
> disable the MMC_CAP_SDIO_IRQ capability from the jz_mmc host
> driver:
>
> in jz4740_mmc_probe():
>
> - mmc->caps |= MMC_CAP_SDIO_IRQ; + mmc->caps = 0;
>
> This has no sense for me, I have to study why this weird behaviour.
>
Hi

If the driver doesn't not have sdio irq capabilities the mmc core will
fallback to polling to emulate sdio irqs.
So either there is still a flaw somewhere in my code regarding hw sdio
irqs or the hardwares sdio irq support is broken.
Please make sure you are using the latest version of jz_mmc.c.

- - Lars
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