linux-kernel - Re: [PATCH 4/7] soc/tegra: pmc: Add interface to set voltage of IO rails

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Message-ID: <CACRpkdZ7te0V-_F98T2JCj_hXdLpgnQiz_G_od=H0ok_ws+Geg@mail.gmail.com>
Date:	Fri, 15 Apr 2016 11:19:54 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Jon Hunter <jonathanh@...dia.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH 4/7] soc/tegra: pmc: Add interface to set voltage of IO rails

On Fri, Apr 15, 2016 at 10:25 AM, Laxman Dewangan <ldewangan@...dia.com> wrote:
> On Friday 15 April 2016 01:30 PM, Mark Brown wrote:

>> The above changelog sounds like a regulator consumer not a regulator -
>> based on what I'm reading there it's a driver that looks at the voltage
>> being supplied to the device and sets some configuration in the device
>> based on that voltage.  This isn't that unusual for analogue circuits
>> but it's definitely not something that's actually doing voltage
>> regulation.
>
> Yes, this is not the voltage regulation or supply the voltage and hence can
> not be in regulator.

OK I buy that. (And stand corrected.)
Sorry for the fuzz.

Yours,
Linus Walleij