linux-kernel - Re: [PATCH v5 1/2] dt-bindings: phy: add bcm63xx-usbh bindings

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Date:   Mon, 13 Jul 2020 15:55:11 +0200
From:   Álvaro Fernández Rojas <noltari@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     simon@...e.lp0.eu, Jonas Gorski <jonas.gorski@...il.com>,
        kishon@...com, vkoul@...nel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Philipp Zabel <p.zabel@...gutronix.de>, krzk@...nel.org,
        gregkh@...uxfoundation.org, alcooperx@...il.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 1/2] dt-bindings: phy: add bcm63xx-usbh bindings

Hi Rob,

If adding "additionalProperties: false” throws the following error, which I don’t understand:
/home/noltari/workspace/linux/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.example.dt.yaml: usb-phy@...01700: 'clock-names', 'clocks' do not match any of the regexes: 'pinctrl-[0-9]+’

BTW, is this what you mean? (I added another if section for the cases with just 1 clock):
https://gist.github.com/Noltari/9bd94a30e8bcc857d6af87985d7ca010

Best regards,
Álvaro.

> El 10 jul 2020, a las 0:11, Rob Herring <robh@...nel.org> escribió:
> 
> On Fri, Jun 19, 2020 at 12:00:34PM +0200, Álvaro Fernández Rojas wrote:
>> Document BCM63xx USBH PHY bindings.
>> 
>> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
>> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
>> ---
>> v5: no changes.
>> v4: conditionally require 1/2 clocks and fix clock/reset values.
>> v3: no changes.
>> v2: phy-cells changed to 1.
>> 
>> .../bindings/phy/brcm,bcm63xx-usbh-phy.yaml   | 84 +++++++++++++++++++
>> 1 file changed, 84 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml
>> 
>> diff --git a/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml
>> new file mode 100644
>> index 000000000000..f267da6193a9
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml
>> @@ -0,0 +1,84 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: "http://devicetree.org/schemas/phy/brcm,bcm63xx-usbh-phy.yaml#"
>> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
>> +
>> +title: BCM63xx USBH PHY
>> +
>> +maintainers:
>> +  - Álvaro Fernández Rojas <noltari@...il.com>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - brcm,bcm6318-usbh-phy
>> +      - brcm,bcm6328-usbh-phy
>> +      - brcm,bcm6358-usbh-phy
>> +      - brcm,bcm6362-usbh-phy
>> +      - brcm,bcm6368-usbh-phy
>> +      - brcm,bcm63268-usbh-phy
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 1
>> +
>> +  clock-names:
>> +    const: usbh
>> +
>> +  resets:
>> +    maxItems: 1
>> +
>> +  "#phy-cells":
>> +    const: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +  - resets
>> +  - "#phy-cells"
> 
> You need:
> 
> additionalProperties: false
> 
>> +
>> +allOf:
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          enum:
>> +            - brcm,bcm6318-usbh-phy
>> +            - brcm,bcm63268-usbh-phy
>> +    then:
>> +      properties:
>> +        clocks:
>> +          maxItems: 2
> 
> This doesn't work. The main schema will also be applied and it says 
> there's 1. The main schema has to cover all the cases and then if/then 
> schemas add constraints.
> 
>> +        clock-names:
>> +          items:
>> +            - const: usbh
>> +            - const: usb_ref
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          enum:
>> +            - brcm,bcm6318-usbh-phy
>> +            - brcm,bcm6328-usbh-phy
>> +            - brcm,bcm6362-usbh-phy
>> +            - brcm,bcm63268-usbh-phy
>> +    then:
>> +      properties:
>> +        power-domains:
>> +          maxItems: 1
>> +      required:
>> +        - power-domains
>> +
>> +examples:
>> +  - |
>> +    usbh: usb-phy@...01700 {
>> +      compatible = "brcm,bcm6368-usbh-phy";
>> +      reg = <0x10001700 0x38>;
>> +      clocks = <&periph_clk 15>;
>> +      clock-names = "usbh";
>> +      resets = <&periph_rst 12>;
>> +      #phy-cells = <1>;
>> +    };
>> -- 
>> 2.27.0