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Date: Thu, 23 Sep 2010 11:54:39 +0100
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Grant Likely <grant.likely@secretlab.ca>, Alan Cox <alan@linux.intel.com>,
        linux-kernel@vger.kernel.org, x86@kernel.org,
        David Woodhouse <dwmw2@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] x86/mrst: add SFI platform device parsing code
Message-ID: <20100923105438.GE25663@rakim.wolfsonmicro.main>
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On Thu, Sep 23, 2010 at 11:48:45AM +0100, Alan Cox wrote:
> > any of this code could ever be made generic.  The spec seems to only
> > cover the data structure, and relationships between devices seem to be
> > left to whatever convention the firmware writer feels like using, or
> > am I missing something?

> Not really no. It's basically little more than a component and IRQ list.
> The GPIO table in 0.8 exposes the GPIO lines a bit more sanely.

> In fact all that SFI provides generically pretty much fits into
> platform_foo() already because there is so little - or into the I²C or
> SPI bus data.

I believe the issue here is the handling of things where the
functionality Linux needs is implemented over multiple chips so we need
a way for the chips to find each other.