Re: [PATCH v4 0/9] Add Mule MFD support

[Guenter Roeck <linux@roeck-us.net>]

On 6/28/24 02:03, Farouk Bouabid wrote:
> Hi Guenter,
> 
> On 28.06.24 02:05, Guenter Roeck wrote:
>> On 6/24/24 09:13, Farouk Bouabid wrote:
>>> Hi Guenter,
>>>
>>> On 19.06.24 15:31, Guenter Roeck wrote:
>>>> On 6/19/24 00:45, Farouk Bouabid wrote:
> 
> 
> [...]
> 
> 
>>
>>> If we cannot proceed with that then we could add a compatible to the amc6821 driver to add the mux device (Basically the "tsd,mule" compatible in amc6821 compatible list would be a combo driver with mux logic + amc6821). Do you think that is more appropriate ?
>>>
>>
>> Implement the mux as part of the amc6821 driver ? No. We could discuss
>> instantiating the i2c mux driver from the amc6821 driver.
> 
> 
> If I understand correctly we would have the amc6821 for "tsd,mule" compatible probe the mule-i2c-mux as platform_device. Possible DT representation would be something like:
> 

Yes, something like that. I have a patch series ready which converts the amc6821
to use regmap, so the i2c-mux driver might work as-is with that patch series in place.

Thanks,
Guenter