linux-kernel - Re: [PATCH v2] ASoC: omap: convert per-board modules to platform drivers

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Date:	Sat, 10 Sep 2011 22:43:44 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Grant Likely <grant.likely@...retlab.ca>,
	alsa-devel@...a-project.org, Liam Girdwood <lrg@...com>,
	Tony Lindgren <tony@...mide.com>,
	Jassi Brar <jassisinghbrar@...il.com>,
	linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.de>,
	Jarkko Nikula <jhnikula@...il.com>,
	linaro-dev@...ts.linaro.org, linux-omap@...r.kernel.org,
	Mans Rullgard <mans.rullgard@...aro.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] ASoC: omap: convert per-board modules to platform
	drivers

On Sat, Sep 10, 2011 at 10:37:15PM +0200, Arnd Bergmann wrote:
> On Friday 09 September 2011, Russell King - ARM Linux wrote:

> > That's just twisted and utterly insane - adding more code for precisely
> > zero benefit what so ever.  Think about it - the device tree is already
> > creating platform devices for entries in the device tree file.  What's

> Exactly. No driver or (worse) user program should ever need to look at
> the top-level compatible property. When you want information about a
> localized part of the system (e.g. the ASoC components), you should
> look up the information for that component.

Right, and this is the state of the art right now.  I can see why people
find this inelegant and want to come up with a way of automatically
generating all these different devices to describe boards especially
with the non-device tree systems, though, so if people want to work on
that stuff I don't see a problem with it.
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