linux-kernel - Re: [PATCH 3/3] regulator: fixed: add support for gpio power switches

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Message-ID: <20161216181245.274imcqn5irfqseq@sirena.org.uk>
Date:   Fri, 16 Dec 2016 18:12:45 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Kevin Hilman <khilman@...libre.com>,
        Patrick Titiano <ptitiano@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: Re: [PATCH 3/3] regulator: fixed: add support for gpio power switches

On Fri, Dec 16, 2016 at 04:52:30PM +0100, Bartosz Golaszewski wrote:

> The difference between a regular fixed regulator and a GPIO power load
> switch is the fact that the latter may be controlled from user space.

This is not something I would understand or expect from the naming here.
I would expect the difference between a regulator and a switch to be
that the switch does no regulation, such things are fairly common in
system design for example as part of the logic that switches between the
different input power supplies available to the system to provide the
root system power rail.

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