From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752080Ab0CATrv (ORCPT ); Mon, 1 Mar 2010 14:47:51 -0500 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:49322 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751359Ab0CATru (ORCPT ); Mon, 1 Mar 2010 14:47:50 -0500 Date: Mon, 1 Mar 2010 19:50:59 +0000 From: Alan Cox To: Len Brown Cc: David Brownell , Denis Turischev , Samuel Ortiz , LKML Subject: Re: [PATCH v3 3/3] gpio: add Intel SCH GPIO controller driver Message-ID: <20100301195059.150a9972@lxorguk.ukuu.org.uk> In-Reply-To: References: <4B73DAEE.5080400@compulab.co.il> <4B7C0DC3.3060907@compulab.co.il> <4B812C21.8000602@compulab.co.il> <201002211112.48527.david-b@pacbell.net> <4B84CC0E.5060203@compulab.co.il> X-Mailer: Claws Mail 3.7.4 (GTK+ 2.18.6; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 01 Mar 2010 13:09:22 -0500 (EST) Len Brown wrote: > > I've looked at two x86 drivers in drivers/gpiolib (cs5535 and langwell) and > > there's no treatment of ACPI in either of them. Since SCH is defined by Intel > > as "embedded" product, having a GPIO driver for it seems logical even despite > > problems you mention. > > FWIW > I believe that Langwell is used only in products without an ACPI BIOS. > > Poulsbo, OTOH, is used in zillions of netbooks running Windows XP. > I don't know what a cs5535 is. Cyrix (then NatSemi then AMD) Geode companion chip. May be present without having ACPI although ACPI was added as a BIOS upgrade to the older ones. Alan