Re: [PATCH V4 2/6] dt-bindings: w1: Add DS2482/DS2484 I2C to 1-W bridges

[Rob Herring <robh@kernel.org>]

On Fri, Mar 31, 2023 at 11:08:36PM +0200, Stefan Wahren wrote:
> Even this binding look trivial, the actual hardware supports more
> features (e.g. sleep mode control GPIO). So add this as a dedicated
> devicetree binding for the Maxim DS2482/DS2484 I2C to 1-W bridges,
> which can be extended later.
> 
> Signed-off-by: Stefan Wahren <stefan.wahren@chargebyte.com>
> ---
>  .../devicetree/bindings/w1/maxim,ds2482.yaml  | 43 +++++++++++++++++++
>  1 file changed, 43 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/w1/maxim,ds2482.yaml
> 
> diff --git a/Documentation/devicetree/bindings/w1/maxim,ds2482.yaml b/Documentation/devicetree/bindings/w1/maxim,ds2482.yaml
> new file mode 100644
> index 000000000000..fd692a3a7400
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/w1/maxim,ds2482.yaml
> @@ -0,0 +1,43 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/w1/maxim,ds2482.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim One wire bus master controller
> +
> +maintainers:
> +  - Stefan Wahren <stefan.wahren@chargebyte.com>
> +
> +description: |
> +  I2C to 1-wire bridges
> +
> +  https://www.analog.com/media/en/technical-documentation/data-sheets/ds2482-100.pdf
> +  https://www.analog.com/media/en/technical-documentation/data-sheets/DS2482-800.pdf
> +  https://www.analog.com/media/en/technical-documentation/data-sheets/DS2484.pdf
> +
> +properties:
> +  compatible:
> +    enum:
> +      - maxim,ds2482
> +      - maxim,ds2484
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false

To allow children, all that's needed for 1-wire is:

additionalProperties:
  type: object

> +
> +examples:
> +  - |
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +      onewire@18 {
> +        compatible = "maxim,ds2484";
> +        reg = <0x18>;
> +      };
> +    };
> -- 
> 2.17.1
>