From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760117AbaCUIPw (ORCPT ); Fri, 21 Mar 2014 04:15:52 -0400 Received: from mail-ee0-f49.google.com ([74.125.83.49]:35112 "EHLO mail-ee0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755061AbaCUIPm (ORCPT ); Fri, 21 Mar 2014 04:15:42 -0400 From: Grant Likely Subject: Re: [RFC PATCH] [media]: of: move graph helpers from drivers/media/v4l2-core to drivers/of To: Laurent Pinchart Cc: Mauro Carvalho Chehab , Russell King - ARM Linux , Tomi Valkeinen , Philipp Zabel , Sascha Hauer , Rob Herring , Rob Herring , Sylwester Nawrocki , Kyungmin Park , "linux-kernel@vger.kernel.org" , "linux-media@vger.kernel.org" , "devicetree@vger.kernel.org" , Philipp Zabel In-Reply-To: <2220569.iDU3Tk3vCh@avalon> References: <1392119105-25298-1-git-send-email-p.zabel@pengutronix.de> < 20140320153804.35d5b835@samsung.com> <20140320231250.8F0E0C412EA@trevor. secretlab.ca> <2220569.iDU3Tk3vCh@avalon> Date: Fri, 21 Mar 2014 08:15:34 +0000 Message-Id: <20140321081537.472B2C4085E@trevor.secretlab.ca> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 21 Mar 2014 00:26:12 +0100, Laurent Pinchart wrote: > On Thursday 20 March 2014 23:12:50 Grant Likely wrote: > > On Thu, 20 Mar 2014 19:52:53 +0100, Laurent Pinchart wrote: > > > Then we might not be talking about the same thing. I'm talking about DT > > > bindings to represent the topology of the device, not how drivers are > > > wired together. > > > > Possibly. I'm certainly confused now. You brought up the component helpers > > in drivers/base/component.c, so I thought working out dependencies is part > > of the purpose of this binding. Everything I've heard so far has given me > > the impression that the graph binding is tied up with knowing when all of > > the devices exist. > > The two are related, you're of course right about that. > > We're not really moving forward here. Part of our disagreement comes in my > opinion from having different requirements and different views of the problem, > caused by experiences with different kind of devices. This is much easier to > solve by sitting around the same table than discussing on mailing lists. I > would propose a meeting at the ELC but that's still a bit far away and would > delay progress by more than one month, which is probably not acceptable. > > I can reply to the e-mail where I've drawn one use case I have to deal with to > detail my needs if that can help. > > Alternatively the UK isn't that far away and I could jump in a train if you > can provide tea for the discussion :-) I'm game for that, but it is a long train ride. I'm up in Aberdeen which is 8 hours from London by train. Also, I'm travelling next week to California (Collaboration summit), so it will have to be in 2 weeks time. Why don't we instead try a Google Hangout or a phone call today. Anywhere between 11:30 and 14:00 GMT would work for me. I'd offer to provide the tea, but I haven't quite perfected transporter technology yet. g.