linux-kernel - Re: [PATCH v3] dt-bindings: iio: adc: ad7923: adjust documentation

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Date:   Mon, 21 Nov 2022 11:26:00 +0100
From:   Edmund Berenson <edmund.berenson@...ix.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Lukasz Zemla <Lukasz.Zemla@...dward.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dt-bindings: iio: adc: ad7923: adjust documentation

On Mon, Nov 21, 2022 at 10:13:57AM +0100, Krzysztof Kozlowski wrote:
> On 20/11/2022 18:06, Edmund Berenson wrote:
> > - Add the ad7927 compatibility string, with fallback compatibility
> > to ad7928.
> > - ad7923 and ad7924 are treated the same in the driver, show
> > the relationship in the documentation.
> > 
> > Suggested-by: Lukasz Zemla <Lukasz.Zemla@...dward.com>
> > Signed-off-by: Edmund Berenson <edmund.berenson@...ix.com>
> > ---
> >  .../bindings/iio/adc/adi,ad7923.yaml          | 26 ++++++++++++-------
> 
> Do not respond with new patch to some old thread. Each patchset starts a
> new thread.
> 
Sorry I didn't know this is the preferred way. I will send new patch
version as new thread in the future.
> >  1 file changed, 17 insertions(+), 9 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
> > index 07f9d1c09c7d..e553853e25d5 100644
> > --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
> > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
> > @@ -11,7 +11,7 @@ maintainers:
> >  
> >  description: |
> >    Analog Devices AD7904, AD7914, AD7923, AD7924 4 Channel ADCs, and AD7908,
> > -   AD7918, AD7928 8 Channels ADCs.
> > +   AD7918, AD7927, AD7928 8 Channels ADCs.
> >  
> >    Specifications about the part can be found at:
> >      https://www.analog.com/media/en/technical-documentation/data-sheets/AD7923.pdf
> > @@ -20,14 +20,22 @@ description: |
> >  
> >  properties:
> >    compatible:
> > -    enum:
> > -      - adi,ad7904
> > -      - adi,ad7914
> > -      - adi,ad7923
> > -      - adi,ad7924
> > -      - adi,ad7908
> > -      - adi,ad7918
> > -      - adi,ad7928
> > +    oneOf:
> > +      - enum:
> > +          - adi,ad7904
> > +          - adi,ad7914
> > +          - adi,ad7908
> 
> You already started shuffling the entries, so make them ordered. What's
> the point of changing the order from one non-sorted to another non-sorted?
> 
> > +          - adi,ad7918
> > +          - adi,ad7923
> > +          - adi,ad7924
> 
> Then deprecate this as alone compatible.
> 
> > +          - adi,ad7927> +          - adi,ad7928
> 
> Ditto
> 
> > +      - items:
> > +          - const: adi,ad7923
> > +          - const: adi,ad7924
> 
> I would expect lower number as fallback.
If I remove alone compatibility of 7924 and 7927 in the documentation,
I will have to remove explicit compatibility match on the driver side,
correct?
Just want to make sure I don't misunderstand you.
> 
> > +      - items:
> > +          - const: adi,ad7927
> > +          - const: adi,ad7928
> 
> Ditto.
> 
> >  
> >    reg:
> >      maxItems: 1
> 
> Best regards,
> Krzysztof
> 

Thank you and best regards,
Edmund