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
