[PATCH V4 2/6] dt-bindings: w1: Add DS2482/DS2484 I2C to 1-W bridges
Rob Herring
robh at kernel.org
Mon Apr 3 11:14:07 PDT 2023
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 at 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 at 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 at 18 {
> + compatible = "maxim,ds2484";
> + reg = <0x18>;
> + };
> + };
> --
> 2.17.1
>
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