On 2/5/21 6:57 AM, Kumar Gala wrote: > There’s an old thread about this from 2016: > > https://www.spinics.net/lists/devicetree-spec/msg00296.html > > In which its clearly stated that node names and property names technically can be the same. However, as we’ve starting utilizing tooling like JSON for validation, does it make sense to maintain this and should we update the specification to require that a node name and property name at the same hierarchy in the tree is not allowed? > IMO, yes. We are effectively doing that already given some of the tooling doesn't really support it. We've removed the few, rare cases in the kernel tree dts files. > Otherwise we get into fun situations like, being valid DTS, but invalid YAML, and various tools not working correct as the YAML loaders have to pick one or there the other version of ‘foo’: > > [Example is from Marti] > > /dts-v1/; > / { > foo; > foo { > bar = <0>; > }; > }; > > (Using pyYAML) > > $ dtc -I dts -O yaml ./foo.dts | python -c 'import sys, yaml; print(yaml.safe_load(sys.stdin.read()))’ > [{'foo': {'bar': [[0]]}}] > > (Using ruamel, w/allow_duplicate_keys as dt-schema does) That reminds me, I need to go turn that off. > > $ dtc -I dts -O yaml ./foo.dts | python -c 'import sys, ruamel.yaml; yaml = ruamel.yaml.YAML(typ="safe"); yaml.allow_duplicate_keys = True; print(yaml.load(sys.stdin.read()))’ > [{'foo': True}> > - k > IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
