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Date:   Thu, 1 Sep 2022 19:44:43 +0100
From:   Mark Brown <broonie@kernel.org>
To:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc:     Max Krummenacher <max.oss.09@gmail.com>,
        Max Krummenacher <max.krummenacher@toradex.com>,
        Fabio Estevam <festevam@gmail.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Marcel Ziswiler <marcel.ziswiler@toradex.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Philippe Schenker <philippe.schenker@toradex.com>,
        Rob Herring <robh+dt@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Shawn Guo <shawnguo@kernel.org>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Liam Girdwood <lgirdwood@gmail.com>
Subject: Re: [PATCH] arm64: dts: imx8mp-verdin: board regulators: add
 always-on
Message-ID: <YxD9m7sELdTUFFZ3@sirena.org.uk>
References: <20220901110422.1859621-1-max.oss.09@gmail.com>
 <YxD5+RCYtzcxEdjj@pendragon.ideasonboard.com>
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On Thu, Sep 01, 2022 at 09:29:13PM +0300, Laurent Pinchart wrote:
> On Thu, Sep 01, 2022 at 01:04:22PM +0200, Max Krummenacher wrote:
> > From: Max Krummenacher <max.krummenacher@toradex.com>

> > These regulators are switched on by HW during power up and can not
> > be influenced by SW.
> > Set the always-on property.
>=20
> Is this needed ? When a fixed regulator has no control GPIO or clock, as
> is the case here, I would expect the driver and/or regulator core to
> understand that it's always on, as the alternative is always-off, which
> is pointless :-) Mark, Liam, what do you think ?

If there's no physical control setting always-on does nothing.

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