Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759485Ab3ICR3y (ORCPT ); Tue, 3 Sep 2013 13:29:54 -0400 Received: from avon.wwwdotorg.org ([70.85.31.133]:41712 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756429Ab3ICR3w (ORCPT ); Tue, 3 Sep 2013 13:29:52 -0400 Message-ID: <52261C8B.2030906@wwwdotorg.org> Date: Tue, 03 Sep 2013 11:29:47 -0600 From: Stephen Warren User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130803 Thunderbird/17.0.8 MIME-Version: 1.0 To: Linus Walleij CC: Lars Poeschel , Lars Poeschel , Grant Likely , "linux-gpio@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , Mark Rutland , Ian Campbell , Kumar Gala , Pawel Moll , Tomasz Figa , Javier Martinez Canillas , Enric Balletbo i Serra , Jean-Christophe PLAGNIOL-VILLARD , Santosh Shilimkar , Kevin Hilman , Balaji T K , Tony Lindgren , Jon Hunter Subject: Re: [PATCH v3] gpio: interrupt consistency check for OF GPIO IRQs References: <1377526030-32024-1-git-send-email-larsi@wh2.tu-dresden.de> <521D0964.2080209@wwwdotorg.org> <5220F849.8030909@wwwdotorg.org> In-Reply-To: X-Enigmail-Version: 1.4.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1114 Lines: 22 On 09/03/2013 06:35 AM, Linus Walleij wrote: > On Fri, Aug 30, 2013 at 9:53 PM, Stephen Warren wrote: > >> I still haven't seen an answer to why we really care about this; how >> many times has code actually allocated the same GPIO/IRQ when it >> shouldn't, in a way that it wasn't detectable by some other mechanism, >> i.e. the feature just not working? Why are we even trying to solve this >> issue? I'm not totally convinced it even makes sense to try and solve it. > > We care about this because a number of OMAP boards are not > working properly when booted from device tree, and they have a hard > time figuring out a solution to the problem. Last try exploded. Now > they are looking to create a patch that will fix the actual problem. Is something missing from /proc/interrupts or /sys/kernel/debug/gpios? If so, let's just add it. -- 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/