linux-kernel - Re: linux-next: manual merge of the arm-soc tree with the i2c-embedded tree

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Date:	Mon, 16 Jul 2012 16:04:25 -0400
From:	Chris Ball <cjb@...top.org>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Wolfram Sang <w.sang@...gutronix.de>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Arnd Bergmann <arnd@...db.de>,
	Stephen Warren <swarren@...dotorg.org>,
	Alessandro Rubini <rubini@...dd.com>,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Deepak Saxena <dsaxena@...aro.org>, linux-next@...r.kernel.org,
	Olof Johansson <olof@...om.net>,
	Lee Jones <lee.jones@...aro.org>,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: linux-next: manual merge of the arm-soc tree with the i2c-embedded tree

Hi,

On Mon, Jul 16 2012, Linus Walleij wrote:
>> Uhm, I seem to have missed that bindings are deemed more "flexible" as
>> long as they are coupled to in-kernel dts files? Is that discussed
>> somewhere? I do wonder about it...
>
> Well patches like this are sent out but not commented on from
> the perspective of binding stability. So of course, they get merged.
>
> Have a look at this commit:
>
> commit 7f217794ffa72f208a250b79ab0b7ea3de19677f
> Author: Arnd Bergmann <arnd@...db.de>
> Date:   Sun May 13 00:14:24 2012 -0400
>
>     mmc: dt: Consolidate DT bindings
>
> This is deleting custom properties from DTS files without
> adding any code to fallback-support them on old device trees.

I agree with your point, but just as an FYI: this patch did involve
a conversation about binding stability, and left some attributes
(e.g. ti,non-removable) purposefully alone (and different to the
new generic MMC bindings) to preserve backwards compatibility:

http://article.gmane.org/gmane.linux.kernel.samsung-soc/10409

Thanks,

- Chris.
-- 
Chris Ball   <cjb@...top.org>   <http://printf.net/>
One Laptop Per Child
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