linux-kernel - Re: [PATCH 1/2] dt-bindings: usb: Add binding for PS5511 hub controller

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Message-ID: <20250331-loud-micro-booby-e0fd4a@krzk-bin>
Date: Mon, 31 Mar 2025 10:09:30 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Pin-yen Lin <treapking@...omium.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Matthias Kaehlcke <mka@...omium.org>, 
	linux-kernel@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>, linux-usb@...r.kernel.org, 
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: usb: Add binding for PS5511 hub
 controller

On Fri, Mar 28, 2025 at 04:28:45PM +0800, Pin-yen Lin wrote:
> +
> +title: PS5511 4+1 Port USB 3.2 Gen 1 Hub Controller

s/PS5511/Parade PS5511/

> +
> +maintainers:
> +  - Pin-yen Lin <treapking@...omium.org>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - usb1da0,5511
> +      - usb1da0,55a1
> +
> +  reg: true
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +  reset-gpios:
> +    items:
> +      - description: GPIO specifier for GRST# pin.
> +
> +  vddd11-supply:
> +    description:
> +      1V1 power supply to the hub
> +
> +  vdd33-supply:
> +    description:
> +      3V3 power supply to the hub
> +
> +  peer-hub:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      phandle to the peer hub on the controller.
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports

I don't understand why do you need OF graph here. Children are already
defined in patternProperties as usb-devices.

Where is any upstream DTS using this schema?

> +
> +    properties:
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          1st downstream facing USB port
> +
> +      port@2:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          2nd downstream facing USB port
> +
> +      port@3:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          3rd downstream facing USB port
> +
> +      port@4:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          4th downstream facing USB port
> +
> +      port@5:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          5th downstream facing USB port
> +
> +required:
> +  - compatible
> +  - reg
> +  - peer-hub
> +
> +patternProperties:

patternProperties follow immediately properties, so move it up.

> +  '^.*@[1-5]$':
> +    description: The hard wired USB devices
> +    type: object
> +    $ref: /schemas/usb/usb-device.yaml
> +    additionalProperties: true
> +
> +additionalProperties: false
> +
> +allOf:
> +  - $ref: usb-device.yaml#
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            enum:
> +              - usb1da0,usb55a1
> +    then:
> +      properties:
> +        port@5: false

No such property.

Best regards,
Krzysztof