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Date: Sat, 27 Jul 2013 17:16:34 +0800
Message-ID: <CACVXFVNiHg4H5rc1cxxBc=Prv4etstMFeRtk4op-tgqFp7m54A@mail.gmail.com>
Subject: Re: [Ksummit-2013-discuss] DT bindings as ABI [was: Do we have people
 interested in device tree janitoring / cleanup?]
From: Ming Lei <tom.leiming@gmail.com>
To: "jonsmirl@gmail.com" <jonsmirl@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>, Jason Cooper <jason@lakedaemon.net>,
        Mark Rutland <mark.rutland@arm.com>,
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        Russell King - ARM Linux <linux@arm.linux.org.uk>,
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On Fri, Jul 26, 2013 at 10:14 PM, jonsmirl@gmail.com <jonsmirl@gmail.com> wrote:
>
> Yes, yes - that's why the schema should be written down and used as a
> validation input to dtc. Then dtc can spit out errors for non-standard
> items. There would be two versions - the standard one and a legacy one
> that includes the standard one plus the hacks that can't be undone.
>
> But more importantly it provides a framework for people creating new
> node definitions. Now they can't work in a vacuum and come up with
> random names and structure for everything.
>
> Most of the problems express in the thread would go away if the schema
> was written down and discussed. The rule going forward would be no new
> nodes that aren't part of the standard schema.

+1.

If we want to keep the schema stable, it has to be defined and described
explicitly with one language, just like syscall ABI: C type/API exported to
userspace header file.


Thanks,
-- 
Ming Lei
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