linux-kernel - Re: [PATCH 09/10] MCDE: Add build files and bus

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Date:	Wed, 1 Dec 2010 13:53:39 +0100
From:	Peter Stuge <peter@...ge.se>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Greg KH <greg@...ah.com>, Jimmy RUBIN <jimmy.rubin@...ricsson.com>,
	Dan JOHANSSON <dan.johansson@...ricsson.com>,
	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	Marcus LORENTZON <marcus.xm.lorentzon@...ricsson.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>
Subject: Re: [PATCH 09/10] MCDE: Add build files and bus

Russell King - ARM Linux wrote:
> I feel it would be better to allow the current situation to continue.

I think this misses the point, and is somewhat redundant; I think
everyone knows that it is easiest to never change anything. But
then nothing improves.

> If we start telling people that they can't use statically declared
> devices without first having an alternative,

I would consider it early warning that the way things have been done
before will go away. And I would thus write drivers in a way that
demonstrates and includes that understanding.

The same problem exists in hardware products needing any kind of
longish lifetime. Deal with evolving components by having clean
and simple interfaces, and by not relying on a particular interface
very deep on either side of the edge. Simple I think.

//Peter
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