[PATCH 6/9] dt-bindings: timer: Add MIPS P8700 ACLINT MTIMER

Rob Herring robh at kernel.org
Mon Sep 21 11:21:25 PDT 2026


On Mon, Sep 14, 2026 at 03:55:54PM +0200, Aleksa Paunovic wrote:
> Document the MIPS P8700 ACLINT MTIMER.
> Extend support for both mtimecmp and mtime registers
> within the ACLINT MTIMER, identified via reg-names.
> 
> Signed-off-by: Aleksa Paunovic <aleksa.paunovic at htecgroup.com>
> ---
>  .../bindings/timer/thead,c900-aclint-mtimer.yaml   | 43 ++++++++++++++++++++--
>  1 file changed, 39 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/timer/thead,c900-aclint-mtimer.yaml b/Documentation/devicetree/bindings/timer/thead,c900-aclint-mtimer.yaml
> index cf7c82e980f674afcf59fc726742dc4f49c1a820..35e02da675becb3c8bb187b8e1e623994d52df8c 100644
> --- a/Documentation/devicetree/bindings/timer/thead,c900-aclint-mtimer.yaml
> +++ b/Documentation/devicetree/bindings/timer/thead,c900-aclint-mtimer.yaml
> @@ -17,18 +17,20 @@ properties:
>                - sophgo,sg2042-aclint-mtimer
>                - sophgo,sg2044-aclint-mtimer
>            - const: thead,c900-aclint-mtimer
> +      - items:
> +          - const: gf,mips-p8700-aclint-mtimer
>        - items:
>            - enum:
>                - anlogic,dr1v90-aclint-mtimer
>            - const: nuclei,ux900-aclint-mtimer
>  
>    reg:
> -    items:
> -      - description: MTIMECMP Registers
> +    minItems: 1
> +    maxItems: 2
>  
>    reg-names:
> -    items:
> -      - const: mtimecmp
> +    minItems: 1
> +    maxItems: 2
>  
>    interrupts-extended:
>      minItems: 1
> @@ -42,6 +44,28 @@ required:
>    - reg-names
>    - interrupts-extended
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: gf,mips-p8700-aclint-mtimer
> +    then:
> +      properties:
> +        reg:
> +          minItems: 2
> +        reg-names:
> +          items:
> +            - const: mtime
> +            - const: mtimecmp

New entries go at the end. And then you can define 'mtime' at the top 
level with this just being 'minItems: 2'.

Rob



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