From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.177]) by ozlabs.org (Postfix) with ESMTP id 4F48BDDE9B for ; Fri, 26 Oct 2007 00:21:29 +1000 (EST) Received: by wa-out-1112.google.com with SMTP id m28so694189wag for ; Thu, 25 Oct 2007 07:21:27 -0700 (PDT) Message-ID: Date: Thu, 25 Oct 2007 08:21:27 -0600 From: "Grant Likely" Sender: glikely@secretlab.ca To: "Valentine Barshak" Subject: Re: [linux-usb-devel] [PATCH 1/2] USB: Rework OHCI PPC OF for new bindings In-Reply-To: <47208273.8050601@ru.mvista.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <20071024163412.GA17785@ru.mvista.com> <471FC191.6020704@genesi-usa.com> <200710241850.05467.david-b@pacbell.net> <47208273.8050601@ru.mvista.com> Cc: David Brownell , linux-usb-devel@lists.sourceforge.net, linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 10/25/07, Valentine Barshak wrote: > Grant Likely wrote: > > On 10/24/07, David Brownell 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