Re: [PATCH v2 1/3] dt-bindings: display: add Chipwealth CH1115 OLED Controller

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] The binding incorrectly uses `additionalProperties: false` alongside an `allOf` `$ref` to `panel-common.yaml`, preventing the use of standard panel properties.
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--- Patch [1]: [PATCH v2 1/3] dt-bindings: display: add Chipwealth CH1115 OLED Controller ---
commit dea96c423e55cd876a4ae165ef9b13a3b42cc6fc
Author: Nicolás Antinori <[email protected]>

dt-bindings: display: add Chipwealth CH1115 OLED Controller

Chipwealth CH1115 is a controller for monochrome dot matrix OLED panels.

> diff --git a/Documentation/devicetree/bindings/display/chipwealth,ch1115.yaml b/Documentation/devicetree/bindings/display/chipwealth,ch1115.yaml
> new file mode 100644
> index 0000000000000..9d9c437221312
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/chipwealth,ch1115.yaml

[ ... ]

> +allOf:
> +  - $ref: panel/panel-common.yaml#
> +
> +properties:

[ ... ]

> +  chipwealth,contrast:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    minimum: 0
> +    maximum: 255
> +    description:
> +      Panel contrast.
> +
> +  width-mm: true
> +  height-mm: true
> +  flip-horizontal: true
> +  flip-vertical: true
> +  panel-timing: true

[Severity: Low]
Are these manual redefinitions of standard panel properties necessary?

Since they are already included via panel-common.yaml above, redefining
them locally appears to be a workaround for the additionalProperties: false
schema evaluation issue noted below.

> +
> +required:
> +  - compatible
> +  - reg
> +  - width-mm
> +  - height-mm
> +  - panel-timing
> +
> +additionalProperties: false

[Severity: Low]
Should this use unevaluatedProperties: false instead?

Using additionalProperties: false alongside an allOf $ref restricts the
schema to evaluate only locally defined properties. This causes it to
incorrectly reject standard properties included from panel-common.yaml,
such as backlight, power-supply, or port.

Changing this to unevaluatedProperties: false allows standard panel
properties to be evaluated correctly, which also removes the need to
manually redefine them in this file.

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Sashiko AI review · https://sashiko.dev/#/patchset/[email protected]?part=1