Re: [PATCH v5 01/10] dt-bindings: soc: fsl: cpm_qe: Add TSA controller

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On 17/02/2023 14:50, Herve Codina wrote:
> Hi Krzysztof,
> 
> On Fri, 17 Feb 2023 10:14:48 +0100
> Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote:
> 
>> On 16/02/2023 14:42, Herve Codina wrote:
>>> Add support for the time slot assigner (TSA)
>>> available in some PowerQUICC SoC such as MPC885
>>> or MPC866.
>>>
>>> Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx>
>>> ---
>>>  .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 234 ++++++++++++++++++
>>>  include/dt-bindings/soc/fsl,tsa.h             |  13 +
>>>  2 files changed, 247 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
>>>  create mode 100644 include/dt-bindings/soc/fsl,tsa.h
> 
> [...]
>>> +
>>> +patternProperties:
>>> +  '^tdm@[0-1]$':
>>> +    description:
>>> +      The TDM managed by this controller
>>> +    type: object
>>> +
>>> +    additionalProperties: false
>>> +
>>> +    properties:
>>> +      reg:
>>> +        minimum: 0
>>> +        maximum: 1
>>> +        description:
>>> +          The TDM number for this TDM, 0 for TDMa and 1 for TDMb
> [...]
>>> +
>>> +      fsl,rx-frame-sync-delay-bits:
>>> +        enum: [0, 1, 2, 3]  
>>
>> maxItems: 1
> 
> The property is an enum
> Why this maxItems value ?

Hm, it's an array, but you are right that enum forces dtschema to
interpret it as scalar value, so your code is correct.
> 
> If I add the maxItems value, I've got some dt_binding_check errors:
>   /xxxx/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml:
>   patternProperties:^tdm@[0-1]$:properties:fsl,rx-frame-sync-delay-bits:
>   'enum' should not be valid under {'enum': ['const', 'enum', 'exclusiveMaximum', 'exclusiveMinimum', 'minimum', 'maximum', 'multipleOf', 'pattern']}
> 	hint: Scalar and array keywords cannot be mixed
> 	from schema $id: http://devicetree.org/meta-schemas/keywords.yaml#

Best regards,
Krzysztof




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