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SubjectRe: [PATCH 4/8] minnowboard: Add base platform driver for the MinnowBoard
On Mon, 2013-07-22 at 00:41 +0100, Mark Brown wrote:
> On Sat, Jul 20, 2013 at 07:37:54PM +0200, Linus Walleij wrote:
> > On Thu, Jul 4, 2013 at 6:26 PM, Mark Brown <> wrote:
> > > We should really have a subsystem for this too - the general idea idea
> > > of identifying boards, fit options and so on by looking at things like
> > > GPIOs or numbers in flash is really common.
> > Would it then be a bus following the pattern we chiseled out for
> > the soc bus? (Greg, Lee & Arnd architectured this.)
> I'd expect it to be a bus, yes.

It seems to me the platform bus already provides everything we need. We
can just make a platform driver, say platform-id-gpio.c which can get
it's platform data from OF or ACPI (_PRP proposal from kernel summit
last week for example). Why would a separate bus type need to be

Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel

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