[PATCH v3 1/7] dt-bindings: devapc: Add 'vio-idx-num' field to support mt8192

[Rob Herring]

On Fri, Apr 09, 2021 at 04:19:31PM +0800, Nina Wu wrote:
> From: Nina Wu <Nina-CM.Wu at mediatek.com>
> 
> For new ICs, there are multiple devapc HWs for different subsys.
> We add a field 'vio-idx-num' in DT to indicate the number of
> devices controlled by each devapc.
> To be backward compatible with old ICs which have only one devapc
> HW, this field is not required. The 'vio-idx-num' info will be set
> in compatible data instead.
> 
> Signed-off-by: Nina Wu <Nina-CM.Wu at mediatek.com>
> ---
>  Documentation/devicetree/bindings/soc/mediatek/devapc.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
> index 31e4d3c..909e524 100644
> --- a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
> +++ b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
> @@ -20,11 +20,17 @@ properties:
>    compatible:
>      enum:
>        - mediatek,mt6779-devapc
> +      - mediatek,mt8192-devapc
>  
>    reg:
>      description: The base address of devapc register bank
>      maxItems: 1
>  
> +  mediatek,vio-idx-num:
> +    description: The number of the devices controlled by devapc
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    maxItems: 1

A uint32 is always 1 item, so drop. With that,

Reviewed-by: Rob Herring <robh at kernel.org>

> +
>    interrupts:
>      description: A single interrupt specifier
>      maxItems: 1
> -- 
> 2.6.4
>