On 16/11/2022 09:52, AngeloGioacchino Del Regno wrote: > Il 15/11/22 17:44, Krzysztof Kozlowski ha scritto: >> On 11/11/2022 13:01, AngeloGioacchino Del Regno wrote: >>> MSM8976 supports SMSM, which needs this node to also be a syscon: >>> move the compatible to allow that. >>> >>> Fixes: bcc8d70f912d ("dt-bindings: mailbox: Add compatible for the MSM8976") >> >> I am not sure if this is still a bug. Maybe just a missing feature? >> > > This changes how you use this mailbox across the entire devicetree (as other > nodes will not use mboxes = xxxx, but qcom,ipc = xxxx as syscon), so I think > that this is not a missing feature? Whether it is a bug depends on existing usage. If none of msm8976 DTSes use it the other way, then it is just incomplete or missing support. Not a bug. If existing DTSes use it as syscon, thus you need to add syscon to compatible, then it would be a bugfix. Best regards, Krzysztof