Re: [PATCH 2/2] dt-bindings: iio: imu: st_lsm6dsx: add asm330lhhxg1

[Jonathan Cameron <jic23@kernel.org>]

On Wed, 24 Jan 2024 11:52:34 +0100
Lorenzo Bianconi <lorenzo@kernel.org> wrote:

> Add device bindings for asm330lhhxg1 IMU sensor.
> Use asm330lhhx as fallback device for asm330lhhxg1 since it implements
> all the features currently supported by asm330lhhxg1.

Can we clarify if the hardware of the asm330lhhxg1 supports
1) Exactly the same features as the asm330lhhx
   (Valid use for a fallback compatible, because we might find
    bugs etc in future).
2) More features, but the asm330lhhx features set is a subset.
   (Most valid use for a fallback compatible)
3) Different features from the asm330llhhx but driver only supports
   a set both support? (this is a problem)

I 'think' it is 2 from your text, but I'm not 100% sure I've understood
correctly.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
>  Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml b/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
> index 28b667a9cb76..7ba3de66a2e1 100644
> --- a/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
> +++ b/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
> @@ -49,6 +49,9 @@ properties:
>        - items:
>            - const: st,asm330lhb
>            - const: st,asm330lhh
> +      - items:
> +          - const: st,asm330lhhxg1
> +          - const: st,asm330lhhx
>  
>    reg:
>      maxItems: 1