linux-kernel - Re: [PATCH 3/3] dt-bindings: i2c: at91: Add SAMA7G5 compatible strings list

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Date:   Thu, 10 Mar 2022 10:42:17 +0000
From:   <Sergiu.Moga@...rochip.com>
To:     <krzysztof.kozlowski@...onical.com>, <robh+dt@...nel.org>,
        <Nicolas.Ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <Claudiu.Beznea@...rochip.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH 3/3] dt-bindings: i2c: at91: Add SAMA7G5 compatible
 strings list

On 10.03.2022 09:22, Krzysztof Kozlowski wrote:
> On 09/03/2022 13:07, Sergiu Moga wrote:
>> Add compatible strings list for SAMA7G5.
>>
>> Signed-off-by: Sergiu Moga <sergiu.moga@...rochip.com>
>> ---
>>   .../bindings/i2c/atmel,at91sam-i2c.yaml       | 38 ++++++++++++-------
>>   1 file changed, 24 insertions(+), 14 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml b/Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml
>> index d4aadbbd1a11..661a679b98cf 100644
>> --- a/Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml
>> +++ b/Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml
>> @@ -16,10 +16,15 @@ allOf:
>>         properties:
>>           compatible:
>>             contains:
>> -            enum:
>> -              - atmel,sama5d4-i2c
>> -              - atmel,sama5d2-i2c
>> -              - microchip,sam9x60-i2c
>> +            oneOf:
>> +              - items:
>> +                  - enum:
>> +                      - atmel,sama5d4-i2c
>> +                      - atmel,sama5d2-i2c
>> +                      - microchip,sam9x60-i2c
>> +              - items:
>> +                  - const: microchip,sama7g5-i2c
>> +                  - const: microchip,sam9x60-i2c
> This looks not needed, because it contains microchip,sam9x60-i2c which
> is mentioned earlier.
>
Hmm, I might have misunderstood the functionality. I thought it would be 
stricter, having to match all the strings of that compatible. I guess 
something like this should be enough then?
            oneOf:
               - enum:
                   - atmel,sama5d4-i2c
                   - atmel,sama5d2-i2c
                   - microchip,sam9x60-i2c
                   - microchip,sama7g5-i2

Just adding the sama7g5 compatible seems to pass the check on my end.
>>       then:
>>         properties:
>>           i2c-sda-hold-time-ns:
>> @@ -29,16 +34,21 @@ allOf:
>>
> Best regards,
> Krzysztof

Thank you for the feedback.

Sergiu.