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Message-ID: <20200324203833.GL7039@sirena.org.uk>
Date:   Tue, 24 Mar 2020 20:38:34 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Henry Chen <henryc.chen@...iatek.com>
Cc:     Georgi Djakov <georgi.djakov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Viresh Kumar <vireshk@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Ryan Case <ryandcase@...omium.org>,
        Mark Rutland <mark.rutland@....com>,
        Nicolas Boichat <drinkcat@...gle.com>,
        Fan Chen <fan.chen@...iatek.com>,
        James Liao <jamesjj.liao@...iatek.com>,
        Arvin Wang <arvin.wang@...iatek.com>,
        Mike Turquette <mturquette@...aro.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, srv_heupstream@...iatek.com
Subject: Re: [PATCH V4 11/13] dt-bindings: regulator: add DVFSRC regulator
 dt-bindings

On Fri, Mar 13, 2020 at 05:34:24PM +0800, Henry Chen wrote:

> +- regulator : The DVFSRC regulator is modelled as a subdevice of the DVFSRC.
> +	Because DVFSRC can request power directly via register read/write, likes
> +	vcore which is a core power of mt8183. As such, the DVFSRC regulator
> +	requires that DVFSRC nodes be present. shall contain only one of the
> +	following: "mediatek,mt8183-dvfsrc-regulator"

Why do we even need a compatible here - it's not adding any new
information to the parent mt8183 node, the compatible is mainly for the
way Linux divides things up rather than a description of the hardware.
We could just say that the regulator node always has a particular name
instead.

It's also not quite true that it contains "only" the compatible - it
also allows the regulator constraints to be defined.

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