[PATCH v3 05/12] dt-bindings: phy: renesas,usb2-phy: Add renesas,sysc-signals
Krzysztof Kozlowski
krzk at kernel.org
Thu May 22 05:48:21 PDT 2025
On 22/05/2025 14:46, Krzysztof Kozlowski wrote:
>>>>
>>>> + - if:
>>>> + properties:
>>>> + compatible:
>>>> + contains:
>>>> + const: renesas,usb2-phy-r9a08g045
>>>> + then:
>>>> + required:
>>>> + - renesas,sysc-signals
>>>
>>> That's ABI break.
>>
>> There is no in kernel device tree users of "renesas,usb2-phy-r9a08g045"
>> compatible. It is introduced in patch 11/12 from this series. With this do
>> you still consider it ABI break?
>
> Then this patch cannot be split from binding introducing the user. Don't
> add unused/undocumented compatibles.
>
Or you meant DTS? I asked about ABI which is not about in-kernel users.
You can always change in-kernel users, so what would be any point of a
binding and its ABI?
Best regards,
Krzysztof
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