linux-kernel - Re: [PATCH v2 2/3] regulator: dt-bindings: Add mps,mpq2286 power-management IC

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Date:   Fri, 6 Oct 2023 09:18:51 -0500
From:   Rob Herring <robh@...nel.org>
To:     Saravanan Sekar <saravanan@...umiz.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        krzysztof.kozlowski+dt@...aro.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, lgirdwood@...il.com,
        conor+dt@...nel.org, linux@...ck-us.net,
        linux-hwmon@...r.kernel.org, broonie@...nel.org,
        sravanhome@...il.com, jdelvare@...e.com
Subject: Re: [PATCH v2 2/3] regulator: dt-bindings: Add mps,mpq2286
 power-management IC

On Wed, Sep 27, 2023 at 02:21:18PM +0530, Saravanan Sekar wrote:
> On 27/09/23 13:36, Krzysztof Kozlowski wrote:
> > On 27/09/2023 05:39, Saravanan Sekar wrote:
> > > Document mpq2286 power-management IC
> > > 
> > > Signed-off-by: Saravanan Sekar <saravanan@...umiz.com>
> > > ---
> > >   .../bindings/regulator/mps,mpq2286.yaml       | 59 +++++++++++++++++++
> > >   1 file changed, 59 insertions(+)
> > >   create mode 100644 Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml b/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
> > > new file mode 100644
> > > index 000000000000..594b929fe4b8
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
> > > @@ -0,0 +1,59 @@
> > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/regulator/mps,mpq2286.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Monolithic Power System MPQ2286 PMIC
> > > +
> > > +maintainers:
> > > +  - Saravanan Sekar <saravanan@...umiz.com>
> > > +
> > > +properties:
> > > +  compatible:
> > > +    enum:
> > > +      - mps,mpq2286
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  regulators:
> > > +    type: object
> > > +
> > > +    properties:
> > > +      buck0:
> > 
> > If you have just one buck, it should be "buck".
> > 
> 
> As replied in v1 review comments, other chipset has multiple regulator so
> buck0 used to keep the driver common

This patch needs to stand on its own with explanations/justifications. 
No one reviewing this remembers what was said in some reply. The 
explanation may be in the commit msg, under the '---', or in 
'description' here. Depends on the situation.

I don't see why the driver can't handle 'buck' and 'buckN'.

Rob