Re: [PATCH v3 4/5] dt-bindings: iio: adc: ad4080: add AD4880 support

[Rob Herring (Arm)]

On Fri, 13 Feb 2026 16:47:36 +0200, Antoniu Miclaus wrote:
> Add support for the AD4880, a dual-channel 20-bit 40MSPS SAR ADC
> with integrated fully differential amplifiers (FDA).
> 
> The AD4880 has two independent ADC channels, each with its own SPI
> configuration interface. This requires:
> - Two entries in reg property for primary and secondary channel
>   chip selects
> - Two io-backends entries for the two data channels
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
> ---
> Changes in v3:
>   - Add items descriptions for io-backends entries
>   - Fix reg example format: reg = <0 1> -> reg = <0>, <1>
> 
>  .../bindings/iio/adc/adi,ad4080.yaml          | 54 ++++++++++++++++++-
>  1 file changed, 52 insertions(+), 2 deletions(-)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml: properties:io-backends: {'minItems': 1, 'maxItems': 2, 'items': [{'description': 'Backend for channel A (primary)'}, {'description': 'Backend for channel B (secondary)'}]} should not be valid under {'required': ['maxItems']}
	hint: "maxItems" is not needed with an "items" list
	from schema $id: http://devicetree.org/meta-schemas/items.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260213144742.16394-5-antoniu.miclaus@xxxxxxxxxx

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.