linux-kernel - Re: [PATCH v2 2/8] dt-bindings: phy: phy-rockchip-inno-usb2: add rk3568 documentation

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Date:   Tue, 17 Aug 2021 18:52:15 +0200
From:   Johan Jonker <jbx6244@...il.com>
To:     Peter Geis <pgwipeout@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/8] dt-bindings: phy: phy-rockchip-inno-usb2: add
 rk3568 documentation

Hi Peter,

Some comments. Have a look if it's useful.

On 8/12/21 10:41 PM, Peter Geis wrote:
> The rk3568 usb2phy node is a standalone node with a single muxed
> interrupt.
> Add documentation for it to phy-rockchip-inno-usb2.
> 
> Signed-off-by: Peter Geis <pgwipeout@...il.com>
> ---
>  .../bindings/phy/phy-rockchip-inno-usb2.yaml  | 31 ++++++++++++++++---
>  1 file changed, 27 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
> index 5bebd86bf8b6..d2a749c3f9a3 100644
> --- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
> @@ -18,6 +18,7 @@ properties:
>        - rockchip,rk3328-usb2phy
>        - rockchip,rk3366-usb2phy
>        - rockchip,rk3399-usb2phy
> +      - rockchip,rk3568-usb2phy
>        - rockchip,rv1108-usb2phy
>  
>    reg:
> @@ -50,6 +51,9 @@ properties:
>      description:
>        Phandle to the extcon device providing the cable state for the otg phy.
>  

> +  interrupts:
> +    description: Muxed interrupt for both ports
> +

This allows every Rockchip SoC dtsi to add an interrupt here.
You have only restricted the requirements.
The goal is to restrict things and filter bogus properties.
If it was done because it doesn't compile, maybe could you try/test/use
something like the rockchip-io-domain.yaml $defs format.

===

unevaluatedProperties: false

allOf:
  - $ref: "#/$defs/rk3568"

$defs:
  rk3568:
    if:
      properties:
        compatible:
          contains:
            const: rockchip,rk3568-usb2phy

    then:
      properties:
        interrupts:
          maxItems: 1

      required:
        - interrupts

    else:
      properties:
        host-port:
          properties:
            interrupts:
              description: host linestate interrupt

            interrupt-names:
              const: linestate

          required:
            - interrupts
            - interrupt-names

        otg-port:
          properties:

           interrupts:
             minItems: 1
             maxItems: 3

           interrupt-names:
             oneOf:
               - const: linestate
               - const: otg-mux
               - items:
                   - const: otg-bvalid
                   - const: otg-id
                   - const: linestate

          required:
            - interrupts
            - interrupt-names

>    rockchip,usbgrf:
>      $ref: /schemas/types.yaml#/definitions/phandle
>      description:
> @@ -78,8 +82,6 @@ properties:
>  
>      required:
>        - "#phy-cells"

> -      - interrupts
> -      - interrupt-names

Also remove them as properties in this part when a separate $defs is used.

>  
>    otg-port:
>      type: object
> @@ -109,8 +111,6 @@ properties:
>  
>      required:
>        - "#phy-cells"

> -      - interrupts
> -      - interrupt-names

dito

>  
>  required:
>    - compatible
> @@ -120,6 +120,29 @@ required:
>    - host-port
>    - otg-port
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: rockchip,rk3568-usb2phy

> +      then:

Test "if then else" alignment with yamllint

> +        properties:
> +          interrupts:
> +            maxItems: 1
> +        required:
> +          - interrupts

> +      else:

alignment

> +        properties:
> +          host-port:
> +            required:
> +              - interrupts
> +              - interrupt-names
> +          otg-port:
> +            required:
> +              - interrupts
> +              - interrupt-names
> +

>  additionalProperties: false

additionalProperties does workn't with allOf: - $ref. Use
unevaluatedProperties.

>  
>  examples:
>