From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751523AbaHOVys (ORCPT ); Fri, 15 Aug 2014 17:54:48 -0400 Received: from mail-bn1blp0188.outbound.protection.outlook.com ([207.46.163.188]:44976 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750763AbaHOVyr (ORCPT ); Fri, 15 Aug 2014 17:54:47 -0400 Date: Fri, 15 Aug 2014 16:34:49 -0500 From: atull X-X-Sender: atull@atx-linux-37 To: Guenter Roeck CC: Jean Delvare , , , Liam Girdwood , Mark Brown Subject: power supply gating with ltc2978 Message-ID: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-Originating-IP: [64.129.157.38] X-ClientProxiedBy: BLUPR08CA0051.namprd08.prod.outlook.com (10.141.200.31) To BY2PR03MB315.namprd03.prod.outlook.com (10.141.139.25) X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;UriScan:; X-Forefront-PRVS: 0304E36CA3 X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009004)(6009001)(199003)(164054003)(189002)(20776003)(92566001)(107046002)(80022001)(46102001)(81342001)(33716001)(81542001)(101416001)(77982001)(76482001)(86362001)(50466002)(83506001)(229853001)(102836001)(95666004)(47776003)(99396002)(4396001)(42186005)(69596002)(106356001)(31966008)(74502001)(105586002)(83322001)(81156004)(85852003)(54356999)(74662001)(86152002)(21056001)(23726002)(87976001)(66066001)(79102001)(53416004)(110136001)(85306004)(50986999)(46406003)(83072002)(64706001)(92726001)(77096002);DIR:OUT;SFP:1101;SCL:1;SRVR:BY2PR03MB315;H:atx-linux-37.altera.com;FPR:;MLV:sfv;PTR:InfoNoRecords;A:0;MX:1;LANG:en; X-OriginatorOrg: opensource.altera.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I am interested in adding functionality to be able to gate power supplies going through a ltc2978. I see that there is a hwmon driver already existing (hwmon/pmbus/ltc2978.c). I see some of the other hwmon drivers have MFD's. It looks like this ltc driver would need a MFD and a regulator driver added. However I don't see other pmbus hwmon drivers using MFD. So I am asking for recommendations and reservations on how to proceed here before I get too far with this. Thanks, Alan Tull