[PATCH 23/42] dt-bindings: display: mediatek: Introduce Digital Video Output HW

[AngeloGioacchino Del Regno]

On 7/1/26 16:23, Rob Herring (Arm) wrote:
> 
> On Wed, 01 Jul 2026 14:20:38 +0200, AngeloGioacchino Del Regno wrote:
>> Add documentation for the Digital Video Output (DVO) IP found in
>> the newer generation SoCs MT8196, MT8189 and their variants.
>>
>> This is effectively a more capable block replacing the DisplayPort
>> Interface (DPI/DP_INTF) one found in older SoCs.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
>> ---
>>   .../display/mediatek/mediatek,mt8196-dvo.yaml | 142 ++++++++++++++++++
>>   1 file changed, 142 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml
>>
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 

Those errors on literally all bindings are quite embarassing. Oops.

Already fixed locally, but since this is a huge series, I will allow some time
for reviews before compulsively pushing a v2.

Cheers,
Angelo

> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: ignoring, error in schema: properties: compatible
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> 	from schema $id: http://devicetree.org/meta-schemas/keywords.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.yaml: properties:compatible: [{'const': 'mediatek,mt8189-dp-dvo'}, {'const': 'mediatek,mt8189-edp-dvo'}, {'const': 'mediatek,mt8196-edp-dvo'}] is not of type 'object', 'boolean'
> Traceback (most recent call last):
>    File "/usr/local/bin/dt-doc-validate", line 8, in <module>
>      sys.exit(main())
>               ~~~~^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/doc_validate.py", line 66, in main
>      ret |= check_doc(f)
>             ~~~~~~~~~^^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/doc_validate.py", line 37, in check_doc
>      dtsch.check_schema_refs()
>      ~~~~~~~~~~~~~~~~~~~~~~~^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/schema.py", line 242, in check_schema_refs
>      self._check_schema_refs(resolver, self)
>      ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/schema.py", line 212, in _check_schema_refs
>      self._check_schema_refs(resolver, v, parent=k, is_common=is_common,
>      ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>                              has_constraint=has_constraint)
>                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/schema.py", line 212, in _check_schema_refs
>      self._check_schema_refs(resolver, v, parent=k, is_common=is_common,
>      ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>                              has_constraint=has_constraint)
>                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>    File "/usr/local/lib/python3.13/dist-packages/dtschema/schema.py", line 203, in _check_schema_refs
>      ref_sch = resolver.lookup(schema['$ref']).contents
>                ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
>    File "/usr/local/lib/python3.13/dist-packages/referencing/_core.py", line 682, in lookup
>      retrieved = self._registry.get_or_retrieve(uri)
>    File "/usr/local/lib/python3.13/dist-packages/referencing/_core.py", line 422, in get_or_retrieve
>      registry = self.crawl()
>    File "/usr/local/lib/python3.13/dist-packages/referencing/_core.py", line 500, in crawl
>      id = resource.id()
>    File "/usr/local/lib/python3.13/dist-packages/referencing/_core.py", line 231, in id
>      id = self._specification.id_of(self.contents)
>    File "/usr/local/lib/python3.13/dist-packages/referencing/jsonschema.py", line 50, in _dollar_id
>      return contents.get("$id")
>             ^^^^^^^^^^^^
> AttributeError: 'list' object has no attribute 'get'
> Documentation/devicetree/bindings/display/mediatek/mediatek,mt8196-dvo.example.dtb: /example-0/dvo at 324c0000: failed to match any schema with compatible: ['mediatek,mt8196-edp-dvo']
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.kernel.org/project/devicetree/patch/20260701122057.19648-24-angelogioacchino.delregno@collabora.com
> 
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.
>