linux-kernel - Re: [PATCH] regulator: tps6586x: add support for SYS rail

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Message-ID: <501A69CA.2070507@nvidia.com>
Date:	Thu, 2 Aug 2012 17:21:38 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"grant.likely@...retlab.ca" <grant.likely@...retlab.ca>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	Stephen Warren <swarren@...dia.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>
Subject: Re: [PATCH] regulator: tps6586x: add support for SYS rail

On Thursday 02 August 2012 05:10 PM, Mark Brown wrote:
> On Thu, Aug 02, 2012 at 04:46:33PM +0530, Laxman Dewangan wrote:
>
>> +static const unsigned int tps6586x_sys_voltages[] = {
>> +	5000000,
>> +};
> Is the system rail actually regulated or is it just a nominal 5V?
> Normally it's just the raw, unregulated input switched in with FETs or
> whatever.

It is unregulated with FET.
The typical range (min-max) shows in data sheet

V(SYS) with respect to AGND1: 2.9V(min) 5.5V(max).
althoguh USB or AC have 4.30V(Min) 16.5V(max)



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