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

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On 21/11/2022 11:26, Edmund Berenson wrote:
> 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@xxxxxxxxxxxx>
>>> Signed-off-by: Edmund Berenson <edmund.berenson@xxxxxxxxx>
>>> ---
>>>  .../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 don't understand. 7924 and 7927 are not compatible with each other -
neither in old code nor in new - so what do you want to remove?

> I will have to remove explicit compatibility match on the driver side,
> correct?
> Just want to make sure I don't misunderstand you.

My comment to which you responded was about order of items. Usually
lower number means older device and usually older device is the fallback.

Best regards,
Krzysztof




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