Re: [PATCH] dt-bindings: watchdog: lantiq,wdt: convert bindings to dtschema

[Rob Herring]

On Mon, Aug 11, 2025 at 03:10:54PM +0200, Aleksander Jan Bajkowski wrote:
> Convert the Lantiq WDT Watchdog bindings to yaml format.
> 
> Signed-off-by: Aleksander Jan Bajkowski <olek2@xxxxx>
> ---
>  .../bindings/watchdog/lantiq,wdt.yaml         | 50 +++++++++++++++++++
>  .../bindings/watchdog/lantiq-wdt.txt          | 24 ---------
>  2 files changed, 50 insertions(+), 24 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/lantiq,wdt.yaml
>  delete mode 100644 Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/lantiq,wdt.yaml b/Documentation/devicetree/bindings/watchdog/lantiq,wdt.yaml
> new file mode 100644
> index 000000000000..f1102fff2d92
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/lantiq,wdt.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/lantiq,wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Lantiq WTD watchdog
> +
> +maintainers:
> +  - Hauke Mehrtens <hauke@xxxxxxxxxx>
> +
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - lantiq,falcon-wdt
> +          - lantiq,wdt
> +          - lantiq,xrx100-wdt
> +      - items:
> +          - enum:
> +              - lantiq,xrx200-wdt
> +              - lantiq,xrx300-wdt
> +          - const: lantiq,xrx100-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +  lantiq,rcu:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      Phandle to the RCU syscon node (required for
> +      "lantiq,falcon-wdt" and "lantiq,xrx100-wdt")

Express the 'required' as a schema, not freeform text.

> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    watchdog@803f0 {
> +        compatible = "lantiq,xrx200-wdt", "lantiq,xrx100-wdt";
> +        reg = <0x803f0 0x10>;
> +
> +        lantiq,rcu = <&rcu0>;
> +    };