[PATCH] of: support an enumerated-bus compatible value

[Arnd Bergmann]

On Tuesday 24 July 2012, Stephen Warren wrote:
> > One would think that, but the of_address handling code actually treats
> > empty ranges the same as missing ranges, in violation of the spec,
> > and as a workaround to deal with some powermac machines that required
> > this.
> > 
> > I'd rather fix the code to deal with this correctly.
> 
> OK, so what is correctly then?
> 
> Adding an explicit enumerated-bus compatible value/node-type/binding
> seems like "correctly" to me, but it seemed like others didn't agree.

I'm talking about the issue that you cannot currently have a bus
without a "ranges" property and #size-cells=<0> and expect Linux
to turn the devices on it into platform devices, because the
of_translate_address function fails on this.

	Arnd