linux-kernel - Re: [PATCH v3 4/4] regulator: core: Add voltage support for sync

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Message-ID: <20200721121928.GC4845@sirena.org.uk>
Date:   Tue, 21 Jul 2020 13:19:28 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        John Stultz <john.stultz@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Android Kernel Team <kernel-team@...roid.com>
Subject: Re: [PATCH v3 4/4] regulator: core: Add voltage support for
 sync_state() callbacks

On Mon, Jul 20, 2020 at 08:24:59PM -0700, Saravana Kannan wrote:

> Btw, going a tangent, why is regulator_set_voltage() not dependent on
> a consumer's regulator enable request? If they don't care if the
> regulator goes off, do they really care if the voltage goes lower?
> What's the reason behind not tying voltage request with the enable
> request?

The most important thing is being able to control the conditions at
power on and power off, the period while the power is off is not so
important.

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