On Fri, Sep 01, 2017 at 01:29:31AM -0400, Robert P. J. Day wrote:
> again, more nitpicky pedantry, but from my initial post, i'm still
> unclear on a couple things.
>
> first, a number of powerpc .dts files contain the line:
>
> dcr-parent = <&{/cpus/cpu@0}>;
>
> and it's not clear to me why there are curly braces there. that is the
> only example of that, but i see no mention of that in the spec. is it
> meaningful? or are they superfluous?
This syntax allows us to refer to a node by path, even if it doesn't
have an existing label. The &foo syntax only allows us to refer to an
existing label called foo.
> also, the spec states that status could be set to "okay", but a pile
> of .dts files in the current kernel have the shorter form:
>
> status = "ok";
>
> and the current kernel code in drivers/of explicitly accepts both
> forms. is that a formal spec property, or is the kernel code simply
> allowing people to be sloppy?
The kernel is catering for sloppiness. We should probably fix those up
in the kernel tree.
Thanks,
Mark.
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