From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754722AbbJTXHA (ORCPT ); Tue, 20 Oct 2015 19:07:00 -0400 Received: from v094114.home.net.pl ([79.96.170.134]:45213 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752291AbbJTXGt (ORCPT ); Tue, 20 Oct 2015 19:06:49 -0400 From: "Rafael J. Wysocki" To: Mark Brown Cc: Alan Stern , Tomeu Vizoso , Rob Herring , David Woodhouse , Greg Kroah-Hartman , Russell King , Michael Turquette , Stephen Boyd , Vinod Koul , Dan Williams , Linus Walleij , Alexandre Courbot , Thierry Reding , David Airlie , Terje =?ISO-8859-1?Q?Bergstr=F6m?= , Stephen Warren , Wolfram Sang , Frank Rowand , Grant Likely , Kishon Vijay Abraham I , Sebastian Reichel , Dmitry Eremin-Solenikov , Liam Girdwood , Felipe Balbi , Jingoo Han , Lee Jones , Jean-Christophe Plagniol-Villard , Tomi Valkeinen , "linux-kernel@vger.kernel.org" , linux-clk@vger.kernel.org, dmaengine@vger.kernel.org, "linux-gpio@vger.kernel.org" , dri-devel , "linux-tegra@vger.kernel.org" , "linux-i2c@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-pm@vger.kernel.org" , Linux PWM List , Linux USB List , "linux-fbdev@vger.kernel.org" Subject: Re: [GIT PULL] On-demand device probing Date: Wed, 21 Oct 2015 01:35:38 +0200 Message-ID: <23698237.227MziouDO@vostro.rjw.lan> User-Agent: KMail/4.11.5 (Linux/4.1.0-rc5+; KDE/4.11.5; x86_64; ; ) In-Reply-To: <20151020193528.GE32054@sirena.org.uk> References: <20151020193528.GE32054@sirena.org.uk> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, October 20, 2015 08:35:28 PM Mark Brown wrote: > > --7fVr/IRGAG9sAW4J > Content-Type: text/plain; charset=us-ascii > Content-Disposition: inline > Content-Transfer-Encoding: quoted-printable > > On Tue, Oct 20, 2015 at 01:14:46PM -0400, Alan Stern wrote: > > On Tue, 20 Oct 2015, Tomeu Vizoso wrote: > > > > This iteration of the series would make this quite easy, as > > > dependencies are calculated before probes are attempted: > > > > https://lkml.org/lkml/2015/6/17/311 > > > But what Rafael is proposing is quite general; it would apply to _all_ > > dependencies as opposed to just those present in DT drivers or those=20 > > affecting platform_devices. > > We'll still need most of the DT bits that are there at the minute (the > ones strewn around the subsystems) AFAICT since it's at the point where > we parse the DT and work out what the dependencies are which we probably > want to do prior to getting the drivers up and will be different for > ACPI. I think the level of DT dependency here looks a lot larger than > it actually is due to the fact that a lot of what's being modified is DT > parsing code. Right, something will have to register the dependency, or a "link" between devices, with the core once we find out that the dependency is there. Thanks, Rafael