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

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Date:   Fri, 8 Oct 2021 08:25:05 +0800
From:   ChiYuan Huang <u0084500@...il.com>
To:     Mark Brown <broonie@...nel.org>
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

Mark Brown <broonie@...nel.org> 於 2021年10月7日 週四 下午9:45寫道：
>
> 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.

Not to oppose your comment, from the initial idea, I'm just thinking
'how' to make the user easy to use.
But if this way  is more flexible, I'll change it to check the
regulator voltage.

This will be put in patch v3.
Thanks.