Re: [RFC PATCH 1/4] dt-bindings: usb: usb-xhci: Add xhci-snps-quirks

[Rob Herring <robh@kernel.org>]

On Fri, Jun 03, 2022 at 07:48:08PM -0700, Thinh Nguyen wrote:
> Set this property to use xhci-snps extension to handle common Synopsys
> DWC_usb3x host quirks.

I don't see why this needs to be in DT.

The DWC3 stuff is a mess of quirks which doesn't work well. Quirk 
properties in DT require either knowing the quirk up front (You don't 
always) or updating the DT on a platform when you find one. Quirks 
should be implied by the compatible string(s) instead.

> 
> Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
> ---
>  Documentation/devicetree/bindings/usb/usb-xhci.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> index 965f87fef702..540044a087a7 100644
> --- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> +++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> @@ -29,6 +29,10 @@ properties:
>      description: Interrupt moderation interval
>      default: 5000
>  
> +  xhci-snps-quirks:
> +    description: Handles common Synopsys DWC_usb3x host quirks
> +    type: boolean
> +
>  additionalProperties: true
>  
>  examples:
> -- 
> 2.28.0
> 
>