linux-kernel - Re: [Ksummit-2013-discuss] DT bindings as ABI [was: Do we have people interested in device tree janitoring / cleanup?]

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Message-ID: <20130726135734.GE9858@sirena.org.uk>
Date:	Fri, 26 Jul 2013 14:57:34 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Jason Cooper <jason@...edaemon.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"ksummit-2013-discuss@...ts.linuxfoundation.org" 
	<ksummit-2013-discuss@...ts.linuxfoundation.org>,
	Domenico Andreoli <cavokz@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dave P Martin <Dave.Martin@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [Ksummit-2013-discuss] DT bindings as ABI [was: Do we have
 people interested in	device tree janitoring / cleanup?]

On Fri, Jul 26, 2013 at 12:18:48AM +0100, Russell King - ARM Linux wrote:

> It's actually extremely simple.  If the bindings are in development,
> they must not appear in a -final released kernel.  Anything that appears
> in a -final kernel becomes part of the ABI at that point.

Of course from that point of view there's also an argument that once
people have shipped something on a device or generally out of the review
process then we have to support it no matter how depressing their
choices may have been.

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