linux-kernel - Re: [PATCH] dt-bindings: mfd: Add regulator-compatible property

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Date: Fri, 2 Feb 2024 17:27:10 +0530
From: Naresh Solanki <naresh.solanki@...ements.com>
To: Conor Dooley <conor@...nel.org>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Patrick Rudolph <patrick.rudolph@...ements.com>, mazziesaccount@...il.com, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: mfd: Add regulator-compatible property

Hi Conor,


On Fri, 26 Jan 2024 at 21:50, Conor Dooley <conor@...nel.org> wrote:
>
> On Fri, Jan 26, 2024 at 05:16:14PM +0530, Naresh Solanki wrote:
> > Add regulator-compatible property.
>
> Why? I can see that this is what you did, but there's no justification
> for it.
>
> grepping for this property, the first thing I see is:
> rg "regulator-compatible"
> drivers/regulator/of_regulator.c
> 389: * based on either the deprecated property regulator-compatible if present,
> 428:                                    "regulator-compatible", NULL);
> 486:            name = of_get_property(child, "regulator-compatible", NULL);
>
>
> The property is deprecated, so you'll need twice as good a justification
> for adding it!
Yes this is deprecated property. I missed noticing that earlier.
Will remove this dependency. Thanks for pointing that out.

Regards,
Naresh
>
> > Also update example.
> >
> > TEST=Run below command & make sure there is no error
> > make DT_CHECKER_FLAGS=-m dt_binding_check
>
> Same comment here as my other mail.
>
> Thanks,
> Conor.
>
> >
> > Signed-off-by: Naresh Solanki <naresh.solanki@...ements.com>
> > ---
> >  Documentation/devicetree/bindings/mfd/maxim,max5970.yaml | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
> > index 0da5cae3852e..75175098cbc2 100644
> > --- a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
> > +++ b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
> > @@ -74,6 +74,9 @@ properties:
> >              description: |
> >                The value of current sense resistor in microohms.
> >
> > +          regulator-compatible:
> > +            pattern: "^SW[0-1]$"
> > +
> >          required:
> >            - shunt-resistor-micro-ohms
> >
> > @@ -111,6 +114,8 @@ examples:
> >
> >              regulators {
> >                  sw0_ref_0: sw0 {
> > +                    regulator-compatible = "SW0";
> > +                    regulator-name = "p5v";
> >                      shunt-resistor-micro-ohms = <12000>;
> >                  };
> >              };
> > @@ -145,9 +150,13 @@ examples:
> >
> >              regulators {
> >                  sw0_ref_1: sw0 {
> > +                    regulator-compatible = "SW0";
> > +                    regulator-name = "p5v_aux";
> >                      shunt-resistor-micro-ohms = <12000>;
> >                  };
> >                  sw1_ref_1: sw1 {
> > +                    regulator-compatible = "SW1";
> > +                    regulator-name = "p3v3_aux";
> >                      shunt-resistor-micro-ohms = <10000>;
> >                  };
> >              };
> >
> > base-commit: ecb1b8288dc7ccbdcb3b9df005fa1c0e0c0388a7
> > --
> > 2.42.0
> >