Re: [PATCH 1/2] dt-bindings: iio: adc: ad4080: add AD4884 support

[Jonathan Cameron]

On Fri, 22 May 2026 14:53:36 +0300
Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> wrote:

> Add AD4884 compatible string to the AD4080 devicetree binding.
> 
> The AD4884 is a dual-channel, 16-bit, 40 MSPS SAR ADC, sharing the same
> register map and interface as the AD4080 family. Like the AD4880, it
> requires two SPI chip selects and two io-backends for its independent
> ADC channels.

I don't see anything in here to say how it is different in a fashion
that doesn't allow a fall back compatible to the ad4880. Probably just
needs a statement about the resolution being different. 

> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
> index 9c6a56c7c8ef..4a3f7d3e05c3 100644
> --- a/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
> @@ -39,6 +39,7 @@ properties:
>        - adi,ad4087
>        - adi,ad4088
>        - adi,ad4880
> +      - adi,ad4884
>  
>    reg:
>      minItems: 1
> @@ -99,7 +100,9 @@ allOf:
>        properties:
>          compatible:
>            contains:
> -            const: adi,ad4880
> +            enum:
> +              - adi,ad4880
> +              - adi,ad4884
>      then:
>        properties:
>          reg: