Re: [linux-usb-devel] [PATCH 1/2] USB: Rework OHCI PPC OF for new bindings

["Grant Likely" <grant.likely@secretlab.ca>]

On 10/25/07, Valentine Barshak <vbarshak@ru.mvista.com> wrote:
> Grant Likely wrote:
> > On 10/24/07, David Brownell <david-b@pacbell.net> wrote:
> >> On Wednesday 24 October 2007, Matt Sealey wrote:
> >>> Can we just make sure real quickly that the changing of compatibles
> >>> doesn't break existing, not-easily-flashable firmwares?
> >> Yeah, I'm not keen on such breakage either...
> >
> > Add my voice to the chorus.  It's okay to change the binding, but make
> > sure the old binding is still supported.
> >
> > Cheers,
> > g.
> >
>
> Actually, I thought that changing the DTS stuff for mpc52xx boards would
> suffice. Sorry, I was unaware of Efika firmware here. I'll keep old
> bindings as well.

Even if that were the case; I'm nervous about breaking compatibility
with old device trees.

We probably need a formal guideline here.  ie. When is it okay to drop
compatibility with old dts files?

> Does the device tree have "ohci-bigendian" or "ohci-be" compatible
> property on Efika?

If it doesn't, it can be added during prom_init.c  We're already doing
a bunch of efika fixups there anyway.

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195