From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Girdwood Subject: Re: [PATCH v2] MAX8952 PMIC Driver Initial Release Date: Fri, 20 Aug 2010 11:47:09 +0100 Message-ID: <1282301229.3084.152.camel@odin> References: <1282283036-12641-1-git-send-email-myungjoo.ham@samsung.com> <20100820095351.GD13668@rakim.wolfsonmicro.main> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:42709 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751207Ab0HTKrO (ORCPT ); Fri, 20 Aug 2010 06:47:14 -0400 Received: by wyb32 with SMTP id 32so3443481wyb.19 for ; Fri, 20 Aug 2010 03:47:12 -0700 (PDT) In-Reply-To: <20100820095351.GD13668@rakim.wolfsonmicro.main> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Mark Brown Cc: MyungJoo Ham , linux-arm-kernel@lists.infradead.org, kyungmin.park@samsung.com, myungjoo.ham@gmail.com, linux-samsung-soc@vger.kernel.org On Fri, 2010-08-20 at 10:53 +0100, Mark Brown wrote: > On Fri, Aug 20, 2010 at 02:43:56PM +0900, MyungJoo Ham wrote: > > MAX8952 PMIC is used to provide voltage output between 770mV - 1400mV > > with DVS support. In this initial release, users can set voltages for > > four DVS modes, RAMP delay values, and SYNC frequency. > > Controlling FPWM/SYNC_MODE/Pull-Down/Ramp Modes and reading CHIP_ID > > is not supported in this release. > > > > If GPIO of EN is not valid in platform data, the driver assumes that it > > is always-on. If GPIO of VID0 or VID1 is invalid, the driver pulls down > > VID0 and VID1 to fix DVS mode as 0 and disables DVS support. > > > > We assume that V_OUT is capable to provide every voltage from 770mV to > > 1.40V in 10mV steps although the data sheet has some ambiguity on it. > > > > Signed-off-by: MyungJoo Ham > > Signed-off-by: Kyungmin Park > > Acked-by: Mark Brown Applied. Thanks Liam -- Freelance Developer, SlimLogic Ltd ASoC and Voltage Regulator Maintainer. http://www.slimlogic.co.uk From mboxrd@z Thu Jan 1 00:00:00 1970 From: lrg@slimlogic.co.uk (Liam Girdwood) Date: Fri, 20 Aug 2010 11:47:09 +0100 Subject: [PATCH v2] MAX8952 PMIC Driver Initial Release In-Reply-To: <20100820095351.GD13668@rakim.wolfsonmicro.main> References: <1282283036-12641-1-git-send-email-myungjoo.ham@samsung.com> <20100820095351.GD13668@rakim.wolfsonmicro.main> Message-ID: <1282301229.3084.152.camel@odin> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, 2010-08-20 at 10:53 +0100, Mark Brown wrote: > On Fri, Aug 20, 2010 at 02:43:56PM +0900, MyungJoo Ham wrote: > > MAX8952 PMIC is used to provide voltage output between 770mV - 1400mV > > with DVS support. In this initial release, users can set voltages for > > four DVS modes, RAMP delay values, and SYNC frequency. > > Controlling FPWM/SYNC_MODE/Pull-Down/Ramp Modes and reading CHIP_ID > > is not supported in this release. > > > > If GPIO of EN is not valid in platform data, the driver assumes that it > > is always-on. If GPIO of VID0 or VID1 is invalid, the driver pulls down > > VID0 and VID1 to fix DVS mode as 0 and disables DVS support. > > > > We assume that V_OUT is capable to provide every voltage from 770mV to > > 1.40V in 10mV steps although the data sheet has some ambiguity on it. > > > > Signed-off-by: MyungJoo Ham > > Signed-off-by: Kyungmin Park > > Acked-by: Mark Brown Applied. Thanks Liam -- Freelance Developer, SlimLogic Ltd ASoC and Voltage Regulator Maintainer. http://www.slimlogic.co.uk