From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162199Ab2CSQpQ (ORCPT ); Mon, 19 Mar 2012 12:45:16 -0400 Received: from imr4.ericy.com ([198.24.6.9]:56781 "EHLO imr4.ericy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1162173Ab2CSQpN (ORCPT ); Mon, 19 Mar 2012 12:45:13 -0400 Message-ID: <1332175414.32717.154.camel@groeck-laptop> Subject: Re: [PATCH] gpio: add support for ITE IT87xx Super I/O GPIO. From: Guenter Roeck Reply-To: guenter.roeck@ericsson.com To: Diego Elio =?ISO-8859-1?Q?Petten=F2?= CC: Linus Walleij , Grant Likely , "linux-kernel@vger.kernel.org" , Linus Walleij , Denis Turischev Date: Mon, 19 Mar 2012 09:43:34 -0700 In-Reply-To: <1332172876.22775.84.camel@saladin.home.flameeyes.eu> References: <1331927293-17911-1-git-send-email-flameeyes@flameeyes.eu> <20120317123151.AAF9A3E0952@localhost> <1332010422.22775.76.camel@saladin.home.flameeyes.eu> <20120319005406.GA28497@ericsson.com> <1332172876.22775.84.camel@saladin.home.flameeyes.eu> Organization: Ericsson Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2- Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2012-03-19 at 12:01 -0400, Diego Elio Pettenò wrote: > Il giorno dom, 18/03/2012 alle 17.54 -0700, Guenter Roeck ha scritto: > > On IT8721F (which is supposedly mostly compatible to IT8728F), only four of the 87 GPIO pins > > are GPIO-only (unless I miscounted ;). All others have at least two different functions. > > On the IT8728F the 64 GPIO (11 to 87, they use an X-Y notation) are > divided in eight banks, and only the latest three banks are GPIO-only, > the others all have alternate functions. Hmm - at least the GPIO part seems to be quite different to IT8721F after all. Too bad that ITE is so restrictive about their datasheets. I hope the differences don't affect hwmon functionality - so far we assume that it is compatible to IT8721F. Guenter