linux-kernel - Re: [PATCH v2 06/17] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators

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Message-ID: <0534345fdba452baefed4ad740a51d394b2ac423.camel@fi.rohmeurope.com>
Date:   Tue, 9 Feb 2021 13:10:04 +0000
From:   "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
To:     "robh@...nel.org" <robh@...nel.org>
CC:     "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
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        "a.zummo@...ertech.it" <a.zummo@...ertech.it>,
        "broonie@...nel.org" <broonie@...nel.org>,
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        "bgolaszewski@...libre.com" <bgolaszewski@...libre.com>,
        "lee.jones@...aro.org" <lee.jones@...aro.org>,
        linux-power <linux-power@...rohmeurope.com>,
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        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 06/17] dt_bindings: regulator: Add ROHM BD71815 PMIC
 regulators

Hello Again Rob,

And thanks for reviewing the bindings!

On Mon, 2021-02-08 at 20:24 -0600, Rob Herring wrote:
> On Tue, Jan 19, 2021 at 09:17:09AM +0200, Matti Vaittinen wrote:
> > Add binding documentation for regulators on ROHM BD71815 PMIC.
> > 5 bucks, 7 LDOs and a boost for LED.
> > 
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
> > ---

snip

> > +
> > +      rohm,dvs-run-voltage:
> 
> Use standard unit suffix.
> 
> > +        description:
> > +          PMIC "RUN" state voltage in uV when PMIC HW states are
> > used. See
> > +          comments below for bucks/LDOs which support this. 0
> > means
> > +          regulator should be disabled at RUN state.
> > +        $ref: "/schemas/types.yaml#/definitions/uint32"
> 
> And then drop this.

Quote from v1 review:

> > > > > > +      rohm,dvs-run-voltage:
> > > > >
> > > > > These should have a unit suffix.
> > > >
> > > > I know but these are existing properties. I'd like to re-use
them
> > > > as
> > > > they have exported parser helpers - and I am unsure what kind
of
> > > > breakages changing them would cause. (The BD71837/BD71847 which
> > > > introduced these properties are one of the PMICs which are
pretty
> > > > widely used.)
> > >
> > > Okay. Hopefully I remember next time I see this...
> >
> > Actually, I think I can add support for rohm,dvs-run-microvolt and
> > fellows to these same helpers so new devices can use appropriately
> > named properties. That would mean there is duplicate properties for
> > same purpose - but maybe it allows us to eventually deprecate the
old
> > ones... Which of these options would you prefer?
>
> Just keep the existing ones.

Seem you predicted this XD If you still think it's Ok to keep the
existing ones, then I'll take this an ack, Ok?

Best Regards
	Matti Vaittinen