linux-kernel - Re: [PATCH v2] dt-bindings: phy: st: convert phy-stih407-usb to DT schema

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Date:   Wed, 23 Aug 2023 08:43:00 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Raphael Gallais-Pou <rgallaispou@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Patrice Chotard <patrice.chotard@...s.st.com>
Cc:     linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: phy: st: convert phy-stih407-usb to DT
 schema

On 22/08/2023 22:43, Raphael Gallais-Pou wrote:
> Convert the st,stih407-usb2-phy binding to DT schema format.
> 
> Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com>
> ---

Thank you for your patch. There is something to discuss/improve. Minor
change needed at the end. While at it, few more nits (which I would skip
if not that change).

> Changes in v2:
>   * Removed quotes surrounding $ref
>   * Removed quotes surrounding const properties
>   * Changed 'st,syscfg' $ref value to phandle-array
>   * Changed authorship to my oss email addressThank you for your patch. There is something to discuss/improve.

Nit: Drop "driver" and any other driver references. Instead, focus on
device.


> +  (when controlling usb2/1.1 devices) available on STiH407 SoC family from
> +  STMicroelectronics.
> +
> +properties:
> +  compatible:
> +    const: st,stih407-usb2-phy
> +
> +  st,syscfg:
> +    description: Phandle to the syscfg bank
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      - items:
> +          - description: phandle to syscfg
> +          - description: phyparam register offset
> +          - description: phyctrl register offset
> +
> +  resets:
> +    items:
> +      - description: Phandle and reset specifier pair for the whole phy.
> +      - description: Phandle and reset specifier pair for the port.
> +
> +  reset-names:
> +    description: List of reset signal names.

Nit: drop description, it is obvious.

> +    items:
> +      - const: global
> +      - const: port
> +
> +  "#phy-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - st,syscfg
> +  - resets
> +  - reset-names
> +  - "#phy-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/reset/stih407-resets.h>
> +    usb2_picophy0: usbpicophy {

Drop unused label, and make node name as: usb-phy or phy

https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


Best regards,
Krzysztof