OHCI: What is the current status with Driver Model

OHCI: What is the current status with Driver Model

[Sergiu.Moga]

Hello,

I want to convert our AT91 OHCI driver to Driver Model, but I am not 
sure whether OHCI is fully supported or not in Driver Model. From what I 
can see in `drivers/usb/host/` there are some OHCI drivers registered 
into Driver Model, but the documentation[1] (perhaps outdated) seems to 
specify that OHCI is not supported.

Could you please tell me what is the current status of OHCI with Driver 
Model?


[1] 
https://u-boot.readthedocs.io/en/latest/develop/driver-model/usb-info.html


Regards,

     Sergiu

Re: OHCI: What is the current status with Driver Model

[Sergiu.Moga]

On 07.06.2022 18:27, Sergiu Moga wrote:
> Hello,
>
> I want to convert our AT91 OHCI driver to Driver Model, but I am not 
> sure whether OHCI is fully supported or not in Driver Model. From what 
> I can see in `drivers/usb/host/` there are some OHCI drivers 
> registered into Driver Model, but the documentation[1] (perhaps 
> outdated) seems to specify that OHCI is not supported.
>
> Could you please tell me what is the current status of OHCI with 
> Driver Model?
>
>
> [1] 
> https://u-boot.readthedocs.io/en/latest/develop/driver-model/usb-info.html
>
>
> Regards,
>
>     Sergiu
>
Hello,

My apologies, Simon, I forgot to add you to cc. Do you happen to know 
the answer to my question?

Regards,

     Sergiu

Re: OHCI: What is the current status with Driver Model

[Eugen.Hristev]

On 6/14/22 6:01 PM, Sergiu.Moga@microchip.com wrote:
> On 07.06.2022 18:27, Sergiu Moga wrote:
>> Hello,
>>
>> I want to convert our AT91 OHCI driver to Driver Model, but I am not
>> sure whether OHCI is fully supported or not in Driver Model. From what
>> I can see in `drivers/usb/host/` there are some OHCI drivers
>> registered into Driver Model, but the documentation[1] (perhaps
>> outdated) seems to specify that OHCI is not supported.
>>
>> Could you please tell me what is the current status of OHCI with
>> Driver Model?
>>
>>
>> [1]
>> https://u-boot.readthedocs.io/en/latest/develop/driver-model/usb-info.html
>>
>>
>> Regards,
>>
>>      Sergiu
>>
> Hello,
> 
> My apologies, Simon, I forgot to add you to cc. Do you happen to know
> the answer to my question?
> 
> Regards,
> 
>       Sergiu
> 

+ Tom

Hi Tom,

You have been asking about this

Eugen

Re: OHCI: What is the current status with Driver Model

[Tom Rini]

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On Wed, Jun 22, 2022 at 06:34:58AM +0000, Eugen.Hristev@microchip.com wrote:
> On 6/14/22 6:01 PM, Sergiu.Moga@microchip.com wrote:
> > On 07.06.2022 18:27, Sergiu Moga wrote:
> >> Hello,
> >>
> >> I want to convert our AT91 OHCI driver to Driver Model, but I am not
> >> sure whether OHCI is fully supported or not in Driver Model. From what
> >> I can see in `drivers/usb/host/` there are some OHCI drivers
> >> registered into Driver Model, but the documentation[1] (perhaps
> >> outdated) seems to specify that OHCI is not supported.
> >>
> >> Could you please tell me what is the current status of OHCI with
> >> Driver Model?
> >>
> >>
> >> [1]
> >> https://u-boot.readthedocs.io/en/latest/develop/driver-model/usb-info.html
> >>
> >>
> >> Regards,
> >>
> >>      Sergiu
> >>
> > Hello,
> > 
> > My apologies, Simon, I forgot to add you to cc. Do you happen to know
> > the answer to my question?
> > 
> > Regards,
> > 
> >       Sergiu
> > 
> 
> + Tom
> 
> Hi Tom,
> 
> You have been asking about this

Yes, I guess the documentation is out of date.  With the exception of
ohci-at91 and ohci-lpc32xx all of the other drivers support DM.  The
ohci-da8xx implementation is likely the easiest one to follow as it
didn't do any rewriting but rather added a probe function and data
structures to otherwise make use of the existing callers.

It would be better to do a bigger re-org of the code as at this point
DM_USB migration deadline has passed so all boards should be fixed up
when updating the ohci-at91 driver.  Thanks.

-- 
Tom

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