Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753069Ab0DQFhO (ORCPT ); Sat, 17 Apr 2010 01:37:14 -0400 Received: from mail-bw0-f225.google.com ([209.85.218.225]:41913 "EHLO mail-bw0-f225.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752642Ab0DQFhM (ORCPT ); Sat, 17 Apr 2010 01:37:12 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=apUPwxm8XriYqDQMMY7SBSMclDJ1+RkSzL1gA3XMHPF2RSEBkppA7SbXrW/zJcEUgw yqkHzPIWGFckuL90QJilUHxFNbupQohYpiOKArqjjETrVri9zkmczxgeDcnuVyQyWSlv 1Sw3oNjb2yAOCK84fHR1gO6sltc4A2Od+w+QE= MIME-Version: 1.0 In-Reply-To: <20100416152041.GA28863@sortiz.org> References: <1271113496-6744-1-git-send-email-linus.walleij@stericsson.com> <20100416152041.GA28863@sortiz.org> Date: Sat, 17 Apr 2010 07:37:09 +0200 Message-ID: Subject: Re: [PATCH 1/3] MFD: renamed ab3100.h to abx500.h From: Linus Walleij To: Samuel Ortiz Cc: Linus Walleij , linux-kernel@vger.kernel.org, STEricsson_nomadik_linux@list.st.com, Mattias Wallin Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1296 Lines: 29 2010/4/16 Samuel Ortiz : > On Tue, Apr 13, 2010 at 01:04:56AM +0200, Linus Walleij wrote: >> The goal here is to make way for a more general interface for the >> analog baseband chips ab3100 ab3550 ab550 and future chips. > I have an initial question for you: > Do you plan to have one single driver supporting the 3100, 3550 and the 550 > chips ? Not really, just one common interface. The 3100, 3550 and 5500 share sub-blocks so for example the RTC driver in drivers/rtc/rtc-ab3100.c should be possible to use with either of them, but the core driver implementation will likely differ. (We might need to rename the file for clarity though.) A main point of difference will be how these are accessed: right now the AB3100 and AB3550 are on the I2C bus, the AB5500 will have access through a special on-chip controller instead. So the driver/mfd/ab3100.c|ab3550.c|ab5500.c will be different, but all implement the API from include/linux/mfd/abx500.h and subdrivers will hopefully be possible to share. 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/