Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757248Ab0GNO5v (ORCPT ); Wed, 14 Jul 2010 10:57:51 -0400 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:51883 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753018Ab0GNO5u (ORCPT ); Wed, 14 Jul 2010 10:57:50 -0400 Date: Wed, 14 Jul 2010 15:57:48 +0100 From: Mark Brown To: Sundar R IYER Cc: "lrg@slimlogic.co.uk" , "sameo@linux.intel.com" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , STEricsson_nomadik_linux , Linus WALLEIJ , Bengt JONSSON Subject: Re: [PATCH v2 2/2] ux500: add ab8500-regulators machine specific data Message-ID: <20100714145748.GF31073@rakim.wolfsonmicro.main> References: <1279030173-3086-1-git-send-email-sundar.iyer@stericsson.com> <1279030173-3086-2-git-send-email-sundar.iyer@stericsson.com> <20100713141828.GB24260@rakim.wolfsonmicro.main> <33A307AF30D7BF4F811B1568FE7A9B1810E7E88D@EXDCVYMBSTM006.EQ1STM.local> <20100713145645.GA24626@rakim.wolfsonmicro.main> <20100713150814.GA13767@bnru01.bnr.st.com> <20100713150905.GD24626@rakim.wolfsonmicro.main> <20100713161343.GA25342@bnru01.bnr.st.com> <20100713203852.GA1756@rakim.wolfsonmicro.main> <20100714145053.GA1689@bnru01.bnr.st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100714145053.GA1689@bnru01.bnr.st.com> X-Cookie: We have DIFFERENT amounts of HAIR -- User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1399 Lines: 32 On Wed, Jul 14, 2010 at 08:20:54PM +0530, Sundar R IYER wrote: > > > + .name = "ab8500-vaudio", > > > + .min_uV = 1925000, > > > + .max_uV = 2075000, > > Are you *sure* that all these constraints are accurate for the board? > As far as the min/max values of the voltage go, yes they are as per the > data sheet. Which datasheet, and will the system design actually be varying them at runtime - if it will how will it do so? This is the settings for the particular system and generally a lot of these rails will get fixed at design time for various reasons (for example, the analogue supplies will usually depend on the analogue system design). > > It seems every single voltage is variable even though there are no > > consumers set up, and they can all be disabled too. > Yes. all these regulators can be disabled/enabled. does this answer your > qeury? ( or i didnt understand it properly??) Again, is it really the case that this will happen in this system? Nothing is currently able to actually do that, and unless every consumer using a given supply is hooked into the regulator API things will go wrong when some of them start doing so. -- 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/