linux-kernel - Re: [PATCH net-next v6 1/2] dt-bindings: net: microchip,ksz: document microchip,rmii-clk-internal

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Message-ID: <20231128150203.GA3264915-robh@kernel.org>
Date:   Tue, 28 Nov 2023 09:02:03 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ante Knezic <ante.knezic@...mholz.de>
Cc:     netdev@...r.kernel.org, woojung.huh@...rochip.com, andrew@...n.ch,
        f.fainelli@...il.com, olteanv@...il.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        marex@...x.de, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH net-next v6 1/2] dt-bindings: net: microchip,ksz:
 document microchip,rmii-clk-internal

On Mon, Nov 27, 2023 at 02:20:42PM +0100, Ante Knezic wrote:
> Add documentation for selecting reference rmii clock on KSZ88X3 devices
> 
> Signed-off-by: Ante Knezic <ante.knezic@...mholz.de>
> ---
>  .../devicetree/bindings/net/dsa/microchip,ksz.yaml | 38 +++++++++++++++++++++-
>  1 file changed, 37 insertions(+), 1 deletion(-)

You forgot Conor's ack.

> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
> index b3029c64d0d5..6fd482f2656b 100644
> --- a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
> @@ -11,7 +11,6 @@ maintainers:
>    - Woojung Huh <Woojung.Huh@...rochip.com>
>  
>  allOf:
> -  - $ref: dsa.yaml#/$defs/ethernet-ports
>    - $ref: /schemas/spi/spi-peripheral-props.yaml#
>  
>  properties:
> @@ -78,6 +77,43 @@ required:
>    - compatible
>    - reg
>  
> +if:
> +  not:
> +    properties:
> +      compatible:
> +        enum:
> +          - microchip,ksz8863
> +          - microchip,ksz8873
> +then:
> +  $ref: dsa.yaml#/$defs/ethernet-ports
> +else:
> +  patternProperties:
> +    "^(ethernet-)?ports$":
> +      patternProperties:
> +        "^(ethernet-)?port@[0-2]$":
> +          $ref: dsa-port.yaml#
> +          properties:
> +            microchip,rmii-clk-internal:
> +              $ref: /schemas/types.yaml#/definitions/flag
> +              description:
> +                When ksz88x3 is acting as clock provier (via REFCLKO) it
> +                can select between internal and external RMII reference
> +                clock. Internal reference clock means that the clock for
> +                the RMII of ksz88x3 is provided by the ksz88x3 internally
> +                and the REFCLKI pin is unconnected. For the external
> +                reference clock, the clock needs to be fed back to ksz88x3
> +                via REFCLKI.
> +                If microchip,rmii-clk-internal is set, ksz88x3 will provide
> +                rmii reference clock internally, otherwise reference clock
> +                should be provided externally.

> +          if:
> +            not:
> +              required: [ ethernet ]
> +          then:
> +            properties:
> +              microchip,rmii-clk-internal: false

This can be expressed as:

dependencies:
  microchip,rmii-clk-internal: [ethernet]


> +          unevaluatedProperties: false

Move this under the $ref.

> +
>  unevaluatedProperties: false
>  
>  examples:
> -- 
> 2.11.0
>