[PATCH V3 1/3] dt-bindings: usb: xhci: add support for BCM2711

[Conor Dooley]

On Sun, Dec 03, 2023 at 12:22:15AM +0100, Stefan Wahren wrote:
> The xHCI IP on the BCM2711 SoC is compatible to "brcm,xhci-brcm-v2",
> but also requires a power domain. So introduce a new compatible
> and the specific constraints. Since the key allOf can only occur
> once, merge the reference below.
> 
> Signed-off-by: Stefan Wahren <wahrenst at gmx.net>

Reviewed-by: Conor Dooley <conor.dooley at microchip.com>

Cheers,
Conor.

> ---
>  .../devicetree/bindings/usb/generic-xhci.yaml | 21 ++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/generic-xhci.yaml b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> index 594ebb3ee432..b6e10b0a3c24 100644
> --- a/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> @@ -9,9 +9,6 @@ title: USB xHCI Controller
>  maintainers:
>    - Mathias Nyman <mathias.nyman at intel.com>
> 
> -allOf:
> -  - $ref: usb-xhci.yaml#
> -
>  properties:
>    compatible:
>      oneOf:
> @@ -28,6 +25,7 @@ properties:
>        - description: Broadcom STB SoCs with xHCI
>          enum:
>            - brcm,xhci-brcm-v2
> +          - brcm,bcm2711-xhci
>            - brcm,bcm7445-xhci
>        - description: Generic xHCI device
>          const: xhci-platform
> @@ -49,6 +47,9 @@ properties:
>        - const: core
>        - const: reg
> 
> +  power-domains:
> +    maxItems: 1
> +
>  unevaluatedProperties: false
> 
>  required:
> @@ -56,6 +57,20 @@ required:
>    - reg
>    - interrupts
> 
> +allOf:
> +  - $ref: usb-xhci.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: brcm,bcm2711-xhci
> +    then:
> +      required:
> +        - power-domains
> +    else:
> +      properties:
> +        power-domains: false
> +
>  examples:
>    - |
>      usb at f0931000 {
> --
> 2.34.1
> 
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