Re: [PATCH v4 2/4] dt-bindings: soc: sophgo: Add top misc controller of CV18XX/SG200X series SoC

[Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>]

On 18/03/2024 07:38, Inochi Amaoto wrote:
> CV18XX/SG200X series SoCs have a special top misc system controller,
> which provides register access for several devices. In addition to
> register access, this system controller also contains some subdevices
> (such as dmamux).
> 
> Add bindings for top misc controller of CV18XX/SG200X series SoC.
> 
> Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
> ---
>  .../soc/sophgo/sophgo,cv1800-top-syscon.yaml  | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> new file mode 100644
> index 000000000000..009e45e520d9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo CV1800/SG2000 SoC top system controller
> +
> +maintainers:
> +  - Inochi Amaoto <inochiama@outlook.com>
> +
> +description:
> +  The Sophgo CV1800/SG2000 SoC top misc system controller provides
> +  register access to configure related modules.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: sophgo,cv1800-top-syscon
> +      - const: syscon
> +      - const: simple-mfd
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties:
> +  type: object

You have schema for the child, don't you? So use it: add 'dma-router' to
the properties with $ref. additionalProperties: false.

Explain the dependencies and merging bindings via one tree in the cover
letter or commit changelog.

Best regards,
Krzysztof