[PATCH RFC 01/22] dt-bindings: usb: snps,dwc3: Allow multiple iommus

[Krzysztof Kozlowski]

On Thu, Aug 21, 2025 at 03:38:53PM +0000, Sven Peter wrote:
> Apple's dwc3 variant requires two iommus.
> 
> Signed-off-by: Sven Peter <sven at kernel.org>
> ---
>  Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> index 4380bb6fa2f08a475b557e80467abc2861f622e2..6d35dcc605c01977f4fc6fdb6f12976f1cef2b9e 100644
> --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> @@ -60,7 +60,7 @@ properties:
>    dma-coherent: true
>  
>    iommus:
> -    maxItems: 1
> +    maxItems: 2

Never tested. You anyway need specific constraints.

>  
>    power-domains:
>      description:
> 
> -- 
> 2.34.1
> 
>