Re: [PATCH v2] dt-bindings: trivial-devices: add onnn,adt7462

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On Mon, Sep 23, 2024 at 09:38:00AM +0000, Chanh Nguyen wrote:
> The adt7462 supports monitoring and controlling up to
> four PWM Fan drive outputs and eight TACH inputs measures.
> The adt7462 supports reading a single on chip temperature
> sensor and three remote temperature sensors. There are up
> to 13 voltage monitoring inputs.
> 
> Add device tree bindings for the adt7462 device.
> 
> Signed-off-by: Chanh Nguyen <chanh@xxxxxxxxxxxxxxxxxxxxxx>
> ---
> Change in v2:
>    - Add onnn,adt7462 to the list of trivial devices       [Guenter]

Is this really a trivial device? If it monitors and controls fans, how
come those do not need to be represented in the devicetree? How is it
possible to tell the difference between monitoring 1 and 4 fans without
the extra detail?

Curious,
Conor.

> ---
>  Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
> index 0108d7507215..15f89d7ecf73 100644
> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> @@ -311,6 +311,8 @@ properties:
>            - nuvoton,w83773g
>              # OKI ML86V7667 video decoder
>            - oki,ml86v7667
> +            # ON Semiconductor ADT7462 Temperature, Voltage Monitor and Fan Controller
> +          - onnn,adt7462
>              # 48-Lane, 12-Port PCI Express Gen 2 (5.0 GT/s) Switch
>            - plx,pex8648
>              # Pulsedlight LIDAR range-finding sensor
> -- 
> 2.43.0
> 

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