Re: [PATCH v3 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property

[Sergei Shtylyov]

Hello!

On 9/15/20 2:45 PM, Roger Quadros wrote:

> Controller version 0x0002450D has USB2 PHY RX sensitivity issues
> that needs to be worked around by enabling phyrst-a-enable bit
> in PHYRST_CFG register.
> 
> There is no way to know controller version before device controller
> is started and the workaround needs to be applied for both host and
> device modes, so we add this DT property.
> 
> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> index 9b14c8443d39..ac20b98e9910 100644
> --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> @@ -61,6 +61,10 @@ properties:
>        buffers expressed in KB
>      $ref: /schemas/types.yaml#/definitions/uint32
>  
> +  cdns,phyrst-a-enable:
> +    description: Enable resetting of PHY if Rx fail is detected

   Failure?

[...]

MBR, Sergei