From mboxrd@z Thu Jan  1 00:00:00 1970
From: broonie@opensource.wolfsonmicro.com (Mark Brown)
Date: Wed, 14 Jul 2010 15:57:48 +0100
Subject: [PATCH v2 2/2] ux500: add ab8500-regulators machine specific data
In-Reply-To: <20100714145053.GA1689@bnru01.bnr.st.com>
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>
Message-ID: <20100714145748.GF31073@rakim.wolfsonmicro.main>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

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.