Hello Paul, On 01/29/2015 12:49 AM, Paul Walmsley wrote: > > DT maintainers require all compatible strings used in chip or board > DTS file to be previously documented somewhere in > Documentation/devicetree/bindings, per: > > http://marc.info/?l=linux-tegra&m=142201349727836&w=2 > I would had preferred if checkpatch.pl didn't warn about the most specific variants of the IP blocks tbh. Since afaiu those were only added to the compatible string as a way to make it future proof in case there is going to be needed later. So in that sense I thought they were not part of the DT ABI. Now, dumping the unused specific strings in binding docs only to make checkpatch happy, will have the effect of making those unused strings become part of the DT ABI. Which mean that couldn't be dropped later if those are found to not be needed since there won't be a way to know if an OS following the DT binding will be matching those or not. But since the decision is to warn for all strings in a compatible property even if those are not used, I agree with you that it should be documented. Reviewed-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx> Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html