linux-kernel - Re: [PATCH 3/3] regulator: palmas: add support for LDO8 tracking mode

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Message-ID: <516ECA59.3050200@nvidia.com>
Date:	Wed, 17 Apr 2013 21:44:17 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	Graeme Gregory <gg@...mlogic.co.uk>
CC:	"broonie@...nel.org" <broonie@...nel.org>,
	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"ian@...mlogic.co.uk" <ian@...mlogic.co.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH 3/3] regulator: palmas: add support for LDO8 tracking
 mode

On Wednesday 17 April 2013 07:24 PM, Graeme Gregory wrote:
> Looks good to me, I don't actually know the use case for this feature!
>
> Acked-by: Graeme Gregory <gg@...mlogic.co.uk>
>

This is require for Tegra.
The always ON section of Tegra (say vdd_ao) need to be same as the core 
voltage(vdd_core) when system is active/idle. Hence the vdd_ao should be 
track to vdd_core and for this we need to configure the rail in tracking 
mode.
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