Re: [PATCH] mmc:sdhci:add support to request/free pins for controllers sharing hardware bus

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2011/4/26 Chris Ball <cjb@xxxxxxxxxx>:
> Hi Barry,
>
> On Mon, Apr 25 2011, Barry Song wrote:
>> From: Bin Shi <bin.shi@xxxxxxx>
>>
>> some controllers share data bus or other pins between
>> multi-controllers and need to switch the functions of shared pins
>> runtime.
>> this patch requested those shared pins before actual hardware access
>> and release them after access
>>
>> Signed-off-by: Bin Shi <bin.shi@xxxxxxx>
>> Cc: Binghua Duan <binghua.duan@xxxxxxx>
>> Cc: Andrei Warkentin <andreiw@xxxxxxxxxxxx>
>> Cc: Philip Rakity <prakity@xxxxxxxxxxx>
>> Signed-off-by: Barry Song <21cnbao@xxxxxxxxx>
>
> * The patch is corrupt:
> Â Âfatal: corrupt patch at line 11
> ÂYou can check whether the patch is okay by first e-mailing it to
> Âyourself and checking that git can apply it.

Hi Chris,
I am deeply sorry for our firewall still stops me to send email by
git. I post it in web and this patch should be not able to be applied.
Then i attatched the origianl patch as an attachment.
Our IT will open related ports. Then we can send formated patches later.
>
> * Where is the patch that implements the get_shared_pins() hook in
> Âyour driver?
We send the common level patch ahead to get the upstream agreement so
that we can maintain our bottom level sdhci codes better. We will send
the special driver patch after some time.
Basically, the driver get a mutex and set hardware registers to make
the related pin switch roles.

>
> Thanks,
>
> - Chris.
> --
> Chris Ball  <cjb@xxxxxxxxxx>  <http://printf.net/>
> One Laptop Per Child
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Attachment: 0001-mmc-sdhci-add-support-to-request-free-pins-for-contr.patch
Description: Binary data


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