linux-kernel - Re: [RFC PATCH net-next 2/9] dt-bindings: net: Expand pcs-handle to an array

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Message-ID: <ecaf9d0f-6ddb-5842-790e-3d5ee80e2a77@linaro.org>
Date:   Tue, 12 Jul 2022 10:51:37 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sean Anderson <sean.anderson@...o.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Madalin Bucur <madalin.bucur@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        linux-kernel@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Andrew Lunn <andrew@...n.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [RFC PATCH net-next 2/9] dt-bindings: net: Expand pcs-handle to
 an array

On 11/07/2022 18:05, Sean Anderson wrote:
> This allows multiple phandles to be specified for pcs-handle, such as
> when multiple PCSs are present for a single MAC. To differentiate
> between them, also add a pcs-names property.
> 
> Signed-off-by: Sean Anderson <sean.anderson@...o.com>
> ---
> 
>  .../devicetree/bindings/net/ethernet-controller.yaml       | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
> index 4f15463611f8..c033e536f869 100644
> --- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
> +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
> @@ -107,11 +107,16 @@ properties:
>      $ref: "#/properties/phy-connection-type"
>  
>    pcs-handle:
> -    $ref: /schemas/types.yaml#/definitions/phandle
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
>      description:
>        Specifies a reference to a node representing a PCS PHY device on a MDIO
>        bus to link with an external PHY (phy-handle) if exists.

You need to update all existing bindings and add maxItems:1.

>  
> +  pcs-names:

To be consistent with other properties this should be "pcs-handle-names"
and the other "pcs-handles"... and then actually drop the "handle".


> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    description:
> +      The name of each PCS in pcs-handle.

You also need:
dependencies:
  pcs-names: [ pcs-handle ]

> +
>    phy-handle:
>      $ref: /schemas/types.yaml#/definitions/phandle
>      description:


Best regards,
Krzysztof