Re: [PATCH v5 3/4] dt-bindings: usb: usb-device: add usb hub port vbus-supply suppport

[Marco Felsch]

Hi Rob,

I didn't add your r-b since I moved the DTS example here.

Regards,
  Marco

On 26-02-23, Marco Felsch wrote:
> Some PCB designs don't use the dedicated USB hub port power control GPIO
> to control the port VBUS supply. Instead host managed GPIOs are used to
> control the VBUS supply.
> 
> Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/usb/usb-device.yaml | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/usb-device.yaml b/Documentation/devicetree/bindings/usb/usb-device.yaml
> index 09fceb469f10525e9dcdb91435b142b0d21964b8..c9abdbea0e5348dc25f8f9484142089cf60bd514 100644
> --- a/Documentation/devicetree/bindings/usb/usb-device.yaml
> +++ b/Documentation/devicetree/bindings/usb/usb-device.yaml
> @@ -53,6 +53,12 @@ properties:
>    "#size-cells":
>      const: 0
>  
> +  vbus-supply:
> +    description: USB hub port VBUS supply.
> +      The host managed regulator which controls the USB hub port VBUS. This
> +      regulator is only required if the hub internal control signals aren't
> +      used to control the VBUS regulators.
> +
>  patternProperties:
>    "^interface@[0-9a-f]{1,2}(,[0-9a-f]{1,2})$":
>      type: object
> @@ -85,6 +91,7 @@ additionalProperties: true
>  
>  examples:
>    # hub connected to port 1
> +  # device connected to hub port 2, vbus controlled by ext. regulator
>    # device connected to port 2
>    # device connected to port 3
>    #    interface 0 of configuration 1
> @@ -99,6 +106,14 @@ examples:
>          hub@1 {
>              compatible = "usb5e3,608";
>              reg = <1>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            device@2 {
> +                compatible = "usb123,4321";
> +                reg = <2>;
> +                vbus-supply = <&reg_5v0_vbus>;
> +            };
>          };
>  
>          device@2 {
> 
> -- 
> 2.47.3
> 
> 

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