Re: [PATCH] dt-bindings: stm32: convert dfsdm to json-schema

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On Thu, Jan 23, 2020 at 09:34:31AM +0100, Olivier Moysan wrote:
> Convert the STM32 DFSDM bindings to DT schema format
> using json-schema.
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxx>
> ---
> The DT check still returns some warnings on this bindings:
> dfsdm@4400d000: filter@4: 'st,adc-channels' is a required property
> dfsdm@4400d000: filter@5: 'st,adc-channels' is a required property ...
> 
> These warnings occur because some disabled nodes do not provides the
> required properties. These nodes are included from SoC DT,
> and do not provides by default the properties which are board dependent.

We handle disabled nodes, but not when they are child nodes.

> As workaround in DFSDM yaml bindings, the properties
> (like st,adc-channels) could be defined as required,
> only for the nodes which are in enabled state.

We should handle this in the tooling, not the schemas. I entered an 
issue to track this[1].

> ---
>  .../bindings/iio/adc/st,stm32-dfsdm-adc.txt   | 135 -------
>  .../bindings/iio/adc/st,stm32-dfsdm-adc.yaml  | 332 ++++++++++++++++++
>  2 files changed, 332 insertions(+), 135 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml

Applied.

[1] https://github.com/devicetree-org/dt-schema/issues/32
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