linux-kernel - Re: [PATCH 1/2] ASoC: dt-bindings: rt9120: Add initial bindings

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Date:   Thu, 7 Oct 2021 14:45:43 +0100
From:   Mark Brown <broonie@...nel.org>
To:     ChiYuan Huang <u0084500@...il.com>
Cc:     oder_chiou@...ltek.com, perex@...ex.cz, tiwai@...e.com,
        Rob Herring <robh+dt@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        alsa-devel@...a-project.org, lkml <linux-kernel@...r.kernel.org>,
        cy_huang <cy_huang@...htek.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, allen lin <allen_lin@...htek.com>
Subject: Re: [PATCH 1/2] ASoC: dt-bindings: rt9120: Add initial bindings

On Thu, Oct 07, 2021 at 10:44:49AM +0800, ChiYuan Huang wrote:
> ChiYuan Huang <u0084500@...il.com> 於 2021年10月6日 週三 下午4:47寫道：
> > ChiYuan Huang <u0084500@...il.com> 於 2021年10月5日 週二 下午8:39寫道：
> > > Mark Brown <broonie@...nel.org> 於 2021年10月5日 週二 下午8:29寫道：

> > > > > > I would expect this to be done through the regulator bindings, they
> > > > > > would allow the driver to query the supply voltage.

> > > > Please don't take things off-list unless there is a really strong reason
> > > > to do so.  Sending things to the list ensures that everyone gets a
> > > > chance to read and comment on things.

> > After contacting our HW RD, to support DVDD 1.8V not just SW config,
> > also HW connections.
> > To get only DVDD supply voltage is not enough to meet the HW design.
> > The property seems indeed and need to be used by user's HW connection.

> > Can this property to be kept?

> After thinking, This property name may be improper.
> I think this change depends on HW external circuit for lowv application.
> Currently, I'm modifying the V3 change, this property name also affect
> the property parsing code change.
> May I directly change the name to 'richtek,dvdd-lowv-application' and
> submit the patch v3?

I still don't understand why you wouldn't describe this through the
regulator bindings, those exist to describe the physical supplies ont he
board and their constraints.

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