Re: [PATCH v3 5/6] dt-bindings: iio: adc: Add AD4000

[Conor Dooley <conor@kernel.org>]

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On Fri, Jun 07, 2024 at 11:35:44AM -0300, Marcelo Schmitt wrote:
> On 06/05, Conor Dooley wrote:
> > On Tue, Jun 04, 2024 at 07:43:53PM -0300, Marcelo Schmitt wrote:
> > > Add device tree documentation for AD4000 series of ADC devices.
> > > +properties:
> > > +  compatible:
> > > +    enum:
> > > +      - adi,ad4000
> > > +      - adi,ad4001
> > > +      - adi,ad4002
> > > +      - adi,ad4003
> > > +      - adi,ad4004
> > > +      - adi,ad4005
> > > +      - adi,ad4006
> > > +      - adi,ad4007
> > > +      - adi,ad4008
> > > +      - adi,ad4010
> > > +      - adi,ad4011
> > > +      - adi,ad4020
> > > +      - adi,ad4021
> > > +      - adi,ad4022
> > > +      - adi,adaq4001
> > > +      - adi,adaq4003
> > 
> > Are all these actually incompatible? I'd like a note in the commit
> > message as to why that's the case. A quick look at the driver showed
> > that the differences in the driver between the ad402{0,1,2} are limited
> > to the "dev_name". Same went for some other devices, like the
> > ad40{02,06,10}.
> 
> Yes, that's correct. Some chips only vary by name and max sample rate which
> boils down to only having a different dev_name in the driver.
> Can those have grouped compatible strings?
> dt_binding_check fails if curly brackets are used.
> properties:
>   compatible:
>     enum:
>       - adi,ad402{0,1,2}

compatible:
  oneOf:
    - const: adi,ad4020
    - items:
        - enum:
            - adi,ad4021
            - adi,ad4022
        - const: adi,ad4020

> 
> The groups of similar chips are:
> AD4020/AD4021/AD4022
> AD4003/AD4007/AD4011
> AD4002/AD4006/AD4010
> AD4001/AD4005
> AD4000/AD4004/AD4008


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