From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux Subject: Re: [PATCH v5 1/3] gpio: Cygnus: define Broadcom Cygnus GPIO binding Date: Wed, 17 Dec 2014 10:44:28 +0000 Message-ID: <20141217104428.GV11285@n2100.arm.linux.org.uk> References: <1418342706-14755-2-git-send-email-rjui@broadcom.com> <1918116.UxUgDPTmcq@wuerfel> <1628217.66frkAqHMc@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-gpio-owner@vger.kernel.org To: Alexandre Courbot Cc: Arnd Bergmann , Ray Jui , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Linus Walleij , Grant Likely , Christian Daudt , Matt Porter , Florian Fainelli , Joe Perches , Scott Branden , Linux Kernel Mailing List , "linux-arm-kernel@lists.infradead.org" , "linux-gpio@vger.kernel.org" , bcm-kernel-feedback-list@broadcom.com, "devicetree@vger.kernel.org" List-Id: devicetree@vger.kernel.org On Wed, Dec 17, 2014 at 11:45:01AM +0900, Alexandre Courbot wrote: > Actually we are not that far from being able to do completely without > any GPIO number, and maybe that's what we should aim for. I think the > only remaining offender is the sysfs interface. And that is a user API, and there's lots of users of it (eg, on Raspberry Pi platforms.) So changing it isn't going to be easy - I'd say that it's impractical. What you're suggesting would be like re-numbering Linux syscalls. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net.