netdev - Re: [PATCH net-next 3/3] dt-bindings: net: dsa: Document dsa,tag-protocol property

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Message-ID: <20210327181343.GA339863@robh.at.kernel.org>
Date:   Sat, 27 Mar 2021 12:13:43 -0600
From:   Rob Herring <robh@...nel.org>
To:     Tobias Waldekranz <tobias@...dekranz.com>
Cc:     davem@...emloft.net, kuba@...nel.org, andrew@...n.ch,
        vivien.didelot@...il.com, f.fainelli@...il.com, olteanv@...il.com,
        netdev@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 3/3] dt-bindings: net: dsa: Document
 dsa,tag-protocol property

On Fri, Mar 26, 2021 at 11:56:48AM +0100, Tobias Waldekranz wrote:
> The 'dsa,tag-protocol' is used to force a switch tree to use a
> particular tag protocol, typically because the Ethernet controller
> that it is connected to is not compatible with the default one.
> 
> Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
> ---
>  Documentation/devicetree/bindings/net/dsa/dsa.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.yaml b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> index 8a3494db4d8d..5dcfab049aa2 100644
> --- a/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> @@ -70,6 +70,13 @@ patternProperties:
>                device is what the switch port is connected to
>              $ref: /schemas/types.yaml#/definitions/phandle
>  
> +          dsa,tag-protocol:

'dsa' is not a vendor.

> +            description:
> +              Instead of the default, the switch will use this tag protocol if
> +              possible. Useful when a device supports multiple protcols and
> +              the default is incompatible with the Ethernet device.
> +            $ref: /schemas/types.yaml#/definitions/string

You need to define the possible strings.

> +
>            phy-handle: true
>  
>            phy-mode: true
> -- 
> 2.25.1
>