linux-kernel - Re: [PATCH v2 4/5] dt-bindings: net: Add documentation for optional regulators

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Message-ID: <YoZm9eabWy/FNKu1@sirena.org.uk>
Date:   Thu, 19 May 2022 16:49:09 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Corentin Labbe <clabbe@...libre.com>,
        calvin.johnson@....nxp.com, davem@...emloft.net,
        edumazet@...gle.com, hkallweit1@...il.com,
        jernej.skrabec@...il.com, krzysztof.kozlowski+dt@...aro.org,
        kuba@...nel.org, lgirdwood@...il.com, linux@...linux.org.uk,
        pabeni@...hat.com, robh+dt@...nel.org, samuel@...lland.org,
        wens@...e.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev, netdev@...r.kernel.org
Subject: Re: [PATCH v2 4/5] dt-bindings: net: Add documentation for optional
 regulators

On Thu, May 19, 2022 at 01:58:18PM +0200, Andrew Lunn wrote:
> On Thu, May 19, 2022 at 01:33:21PM +0200, Krzysztof Kozlowski wrote:
> > On 19/05/2022 13:31, Mark Brown wrote:
> > > On Thu, May 19, 2022 at 11:55:28AM +0200, Krzysztof Kozlowski wrote:
> > >> On 18/05/2022 22:09, Corentin Labbe wrote:

> > >>> +  regulators:
> > >>> +    description:
> > >>> +       List of phandle to regulators needed for the PHY

> > >> I don't understand that... is your PHY defining the regulators or using
> > >> supplies? If it needs a regulator (as a supply), you need to document
> > >> supplies, using existing bindings.

> > > They're trying to have a generic driver which works with any random PHY
> > > so the binding has no idea what supplies it might need.

> > OK, that makes sense, but then question is why not using existing
> > naming, so "supplies" and "supply-names"?

> I'm not saying it is not possible, but in general, the names are not
> interesting. All that is needed is that they are all on, or
> potentially all off to save power on shutdown. We don't care how many
> there are, or what order they are enabled.

I think Krzysztof is referring to the name of the property rather than
the contents of the -names property there.

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