On Mon, Nov 21, 2022 at 03:23:53PM +0100, Krzysztof Kozlowski wrote: > On 21/11/2022 15:11, Andy Shevchenko wrote: > > On Mon, Nov 21, 2022 at 02:52:37PM +0100, Krzysztof Kozlowski wrote: > >> On 21/11/2022 13:59, Andy Shevchenko wrote: > >>> > >>> Hi, Rob and Krzysztof! > >>> > >>> Today on SO one question [1] was popped up, and I, remembering a bit of > >>> the code of device properties in the Linux kernel, was a bit surprised of it > >>> in a way that reading DT specification (0.4-rc1 as of today) doesn't clarify > >>> that either. > >>> > >>> Can the specification be a bit more clear about that? Or is it me and the OP of > >>> that question who missed something in the DT spec? > >>> > >>> [1]: https://stackoverflow.com/questions/74517569/reading-tuples-in-a-devicetree > >> > >> I saw question on Stackoverflow and I saw there answers, but what is the > >> question to us? > > > > Does the specification allows mixed types of the values in the same property? > > Because reading it doesn't give a hint. > > I think DT spec allows it ("Format is specific to the property. See the > property definition.") And the quoted sentence confuses me. Is it related to _defined_ only properties (that are in the same document) or is it to any property, then what does the second part actually mean in the latter case: "see the property definition". Where? It might be though it's lack of my understanding the English language (not a native speaker). > but DT schema mostly not (finite list of property > types). To some level DT schema accepts mixes, e.g. phandle-array > containing phandle and offsets, but that's because phandle is actually > also a number (dtschema/schemas/types.yaml). -- With Best Regards, Andy Shevchenko
