linux-kernel - Re: [PATCH v3 2/2] regulator: mt6360: Add DT binding documentation

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Message-ID: <CAE+NS35eh9PhRA1M2f2med52WhRsEfWp=zWUfgETq4odHouxDg@mail.gmail.com>
Date:   Tue, 25 Aug 2020 18:01:46 +0800
From:   Gene Chen <gene.chen.richtek@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Matthias Brugger <matthias.bgg@...il.com>, robh+dt@...nel.org,
        lgirdwood@...il.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Gene Chen <gene_chen@...htek.com>
Subject: Re: [PATCH v3 2/2] regulator: mt6360: Add DT binding documentation

Mark Brown <broonie@...nel.org> 於 2020年8月25日 週二 下午5:34寫道：
>
> On Tue, Aug 25, 2020 at 05:21:06PM +0800, Gene Chen wrote:
> > Mark Brown <broonie@...nel.org> 於 2020年8月25日 週二 上午3:49寫道：
>
> > > So shouldn't there be a documented LDO_VIN1/2 then?
>
> > LDO_VINx is HW design layout, so actually it can't be changed by device tree.
> > LDO_VIN1/LDO_VIN2 supply from VSYS, not regulator, so I think usually
> > not to show the supply from in device tree.
> > or I should declare a dummy reference to system power like "*-supply =
> > <&system_power>;"?
>
> When you say it's from the hardware design do you mean it's fixed by the
> silicon or is this something that's fixed in the board?

fixed in the board, not silicon.