Re: [PATCH 1/2] dt-bindings: rng: add binding for BCM74110 RNG

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On Thu, 31 Oct 2024 at 00:29, Krzysztof Kozlowski
<krzysztof.kozlowski@xxxxxxxxxx> wrote:
>
> On 30/10/2024 22:33, Markus Mayer wrote:
> > Add a binding for the random number generator used on the BCM74110.
> >
> > Signed-off-by: Markus Mayer <mmayer@xxxxxxxxxxxx>
> > ---
> >  .../bindings/rng/brcm,bcm74110.yaml           | 35 +++++++++++++++++++
> >  1 file changed, 35 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/rng/brcm,bcm74110.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/rng/brcm,bcm74110.yaml b/Documentation/devicetree/bindings/rng/brcm,bcm74110.yaml
> > new file mode 100644
> > index 000000000000..acd0856cee72
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/rng/brcm,bcm74110.yaml
>
> Filename as compatible.

I am not sure what you mean by this. That the filename should match
the compatible string? I did change the filename to
brcm,bcm74110-rng.yaml the ID to
http://devicetree.org/schemas/rng/brcm,bcm74110-rng.yaml# in response
to Florian's comment from yesterday.

> > @@ -0,0 +1,35 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/rng/brcm,bcm74110.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: BCM74110 Random number generator
> > +
> > +description: |
>
> Do not need '|' unless you need to preserve formatting.

Removed.

> > +  Random number generator used on the BCM74110.
> > +
> > +maintainers:
> > +  - Markus Mayer <mmayer@xxxxxxxxxxxx>
> > +  - Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - brcm,bcm74110-rng
>
> That's not what you have in DTS.

Fixed in the DTS to be "brcm,bcm74110-rng" everywhere.

> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    rng: rng@83ba000 {
>
> Drop unused label.

Done.

I am giving it a bit more time for additional feedback (on the driver
and the binding) and will send v2 in a few days. Meanwhile, the
generated DTS (with the changes incorporated) is now looking like
this:

$ cat ./Documentation/devicetree/bindings/rng/brcm,bcm74110-rng.example.dts
/dts-v1/;
/plugin/; // silence any missing phandle references

/{
    compatible = "foo";
    model = "foo";
    #address-cells = <1>;
    #size-cells = <1>;

    example-0 {
        #address-cells = <1>;
        #size-cells = <1>;

        rng@83ba000 {
            compatible = "brcm,bcm74110-rng";
            reg = <0x83ba000 0x14>;
        };
    };
};

Thanks,
-Markus




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