Re: [PATCH v2 1/3] ASoC: dt-bindings: Add schema for common DAI params

[Sameer Pujar <spujar@nvidia.com>]

Hi Rob, Krzysztof

On 02-08-2022 01:00, Rob Herring wrote:
> On Mon, 01 Aug 2022 21:37:30 +0530, Sameer Pujar wrote:
>> The "convert-channels" and "convert-rate" bindings are provided for both
>> simple-card and audio-graph-card. However these are separately defined in
>> their respective schemas. For any new binding addition, which is common to
>> both, there will be duplication.
>>
>> Introduce a new schema to have common DAI params properties and these can
>> be re-used in other schemas wherever applicable.
>>
>> Signed-off-by: Sameer Pujar <spujar@nvidia.com>
>> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
>> ---
>>   .../bindings/sound/audio-graph-port.yaml           | 13 ++++------
>>   .../devicetree/bindings/sound/audio-graph.yaml     |  7 +++---
>>   .../devicetree/bindings/sound/dai-params.yaml      | 28 ++++++++++++++++++++++
>>   .../devicetree/bindings/sound/simple-card.yaml     | 16 ++++---------
>>   4 files changed, 40 insertions(+), 24 deletions(-)
>>   create mode 100644 Documentation/devicetree/bindings/sound/dai-params.yaml
>>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
>
> dtschema/dtc warnings/errors:
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/sound/simple-card.yaml: properties:simple-audio-card,convert-rate: 'oneOf' conditional failed, one must be fixed:
>          'type' is a required property
>                  hint: A vendor boolean property can use "type: boolean"
>          'description' is a required property
>                  hint: A vendor boolean property can use "type: boolean"
>          Additional properties are not allowed ('$ref' was unexpected)
>                  hint: A vendor boolean property can use "type: boolean"
>          /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/sound/simple-card.yaml: properties:simple-audio-card,convert-rate: 'oneOf' conditional failed, one must be fixed:
>                  'enum' is a required property
>                  'const' is a required property
>                  hint: A vendor string property with exact values has an implicit type
>                  from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml#
>          '/schemas/sound/dai-params.yaml#/properties/dai-sample-rate' does not match 'types.yaml#/definitions/'
>                  hint: A vendor property needs a $ref to types.yaml
>          '/schemas/sound/dai-params.yaml#/properties/dai-sample-rate' does not match '^#/(definitions|\\$defs)/'
>                  hint: A vendor property can have a $ref to a a $defs schema
>          hint: Vendor specific properties must have a type and description unless they have a defined, common suffix.
>          from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml#

I am hitting this error if I use properties/definitions from another 
schema. If I define it locally, it works. I see there are examples where 
properties from different schema are used. But not able to understand 
why errors are seen in my case. Am I missing anything here?