Re: [PATCH v2 1/8] dt-bindings: mfd: khadas: Add new compatible for Khadas VIM4 MCU

[Rob Herring]

On Fri, Apr 03, 2026 at 06:08:34PM +0200, Ronald Claveau wrote:
> The Khadas VIM4 MCU register is slightly different
> from previous boards' MCU.
> This board also features a switchable power source for its fan.
> 
> Signed-off-by: Ronald Claveau <linux-kernel-dev@xxxxxxxx>
> ---
>  Documentation/devicetree/bindings/mfd/khadas,mcu.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
> index 084960fd5a1fd..67769ef5d58b1 100644
> --- a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
> +++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
> @@ -18,6 +18,7 @@ properties:
>    compatible:
>      enum:
>        - khadas,mcu # MCU revision is discoverable

The revision is no longer discoverable as was claimed?

> +      - khadas,vim4-mcu
>  
>    "#cooling-cells": # Only needed for boards having FAN control feature
>      const: 2
> @@ -25,6 +26,10 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  fan-supply:
> +    description: Phandle to the regulator that powers the fan.
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +
>  required:
>    - compatible
>    - reg
> 
> -- 
> 2.49.0
>