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Message-ID: <97f77164-264b-68e3-3d77-1a5ed1d44d34@linaro.org>
Date:   Sun, 9 Oct 2022 17:58:34 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Colin Foster <colin.foster@...advantage.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Russell King <linux@...linux.org.uk>, UNGLinuxDriver@...rochip.com,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Lee Jones <lee@...nel.org>
Subject: Re: [RFC v4 net-next 15/17] dt-bindings: net: dsa: ocelot: add
 ocelot-ext documentation

On 08/10/2022 20:51, Colin Foster wrote:
> The ocelot-ext driver is another sub-device of the Ocelot / Felix driver
> system. It requires a register array similar to the VSC7514 and has
> different ports layout than existing devices.
> 

Thank you for your patch. There is something to discuss/improve.

> @@ -54,9 +54,24 @@ description: |
>        - phy-mode = "1000base-x": on ports 0, 1, 2, 3
>        - phy-mode = "2500base-x": on ports 0, 1, 2, 3
>  
> +  VSC7512 (Ocelot-Ext):
> +
> +    The Ocelot family consists of four devices, the VSC7511, VSC7512, VSC7513,
> +    and the VSC7514. The VSC7513 and VSC7514 both have an internal MIPS
> +    processor that natively support Linux. Additionally, all four devices
> +    support control over external interfaces, SPI and PCIe. The Ocelot-Ext
> +    driver is for the external control portion.
> +
> +    The following PHY interface types are supported:
> +
> +      - phy-mode = "internal": on ports 0, 1, 2, 3
> +      - phy-mode = "sgmii": on ports 4, 5, 7, 8, 9, 10
> +      - phy-mode = "qsgmii": on ports 4, 5, 6, 7, 8, 10
> +
>  properties:
>    compatible:
>      enum:
> +      - mscc,vsc7512-switch
>        - mscc,vsc9953-switch
>        - pci1957,eef0
>  
> @@ -258,3 +273,100 @@ examples:
>              };
>          };
>      };

Blank line

> +  # Ocelot-ext VSC7512
> +  - |
> +    #include <dt-bindings/phy/phy-ocelot-serdes.h>
> +
> +    soc@0 {
> +        compatible = "mscc,vsc7512";
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        reg = <0 0>;
> +
> +        ethernet-switch@0 {

Does not look like you tested the bindings. Please run `make
dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).

Best regards,
Krzysztof

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