Re: [PATCH v5] ASoC: dt-bindings: omap-mcpdm: Convert to DT schema

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On 22/05/2024 16:43, Péter Ujfalusi wrote:
>>>
>>>> +      compatible = "ti,omap4-mcpdm";
>>>> +      reg = <0x40132000 0x7f>, /* MPU private access */
>>>> +            <0x49032000 0x7f>; /* L3 Interconnect */
>>>> +      interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
>>>> +      interrupt-parent = <&gic>;
>>>> +      ti,hwmods = "mcpdm";
>>>> +      clocks = <&twl6040>;
>>>> +      clock-names = "pdmclk";
>>>
>>> The clocks cannot be added at the time when the node is defined, it is
>>> board specific. This way you imply that it is OK to have it in main dtsi
>>> file. It is not.
>>
>> Wait, what? That's example and pretty standard. Example should be
>> complete. This is not an exceptional binding.
> 
> The fclk for the McPDM is coming from external source, and the McPDM is
> designed in pair with twl6040/6041, there were plan for other codecs to
> support the McPDM protocol and in those cases the clock would come from
> the connected codec.
> 
> The example (as the original binding was bit rot) is missing reg-names,
> dmas and dma-names to be complete.

None of these properties are allowed by the binding and during these
five/six revisions of the patchset no one raised missing properties.

I assume the DTS was validated with the binding. Isn't the case here?

Best regards,
Krzysztof





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