Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752505AbbFKIMc (ORCPT ); Thu, 11 Jun 2015 04:12:32 -0400 Received: from mail-oi0-f43.google.com ([209.85.218.43]:35496 "EHLO mail-oi0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752620AbbFKIME (ORCPT ); Thu, 11 Jun 2015 04:12:04 -0400 MIME-Version: 1.0 In-Reply-To: <5577F533.1060007@ahsoftware.de> References: <1432565608-26036-1-git-send-email-tomeu.vizoso@collabora.com> <5577F533.1060007@ahsoftware.de> Date: Thu, 11 Jun 2015 10:12:03 +0200 Message-ID: Subject: Re: [PATCH 00/21] On-demand device registration From: Linus Walleij To: Alexander Holler Cc: Tomeu Vizoso , Grant Likely , Mark Rutland , "devicetree@vger.kernel.org" , "linux-fbdev@vger.kernel.org" , linux-samsung-soc , "linux-tegra@vger.kernel.org" , "linux-gpio@vger.kernel.org" , "linux-pm@vger.kernel.org" , Dmitry Torokhov , "linux-kernel@vger.kernel.org" , Rob Herring , "linux-pwm@vger.kernel.org" , open@wandq.ahsoftware, "list@wandq.ahsoftware:DRM PANEL DRIVERS , dmaengine@vger.kernel.org, Dan Williams , linux-usb@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1056 Lines: 25 On Wed, Jun 10, 2015 at 10:28 AM, Alexander Holler wrote: > Am 10.06.2015 um 09:30 schrieb Linus Walleij: >> i2c host comes out, probes the regulator driver, regulator driver >> probes and then the regulator_get() call returns. >> >> This requires instrumentation on anything providing a resource >> to another driver like those I mentioned and a lot of overhead >> infrastructure, but I think it's the right approach. However I don't >> know if I would ever be able to pull that off myself, I know talk >> is cheap and I should show the code instead. > > You would end up with the same problem of deadlocks as currently, and you > would still need something ugly like the defered probe brutforce to avoid > them. Sorry I don't get that. Care to elaborate on why? Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/