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Message-ID: <20200529190356.GA2758033@bogus>
Date:   Fri, 29 May 2020 13:03:56 -0600
From:   Rob Herring <robh@...nel.org>
To:     Dan Murphy <dmurphy@...com>
Cc:     andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v4 3/4] dt-bindings: net: Add RGMII internal
 delay for DP83869

On Wed, May 27, 2020 at 11:49:33AM -0500, Dan Murphy wrote:
> Add the internal delay values into the header and update the binding
> with the internal delay properties.
> 
> Signed-off-by: Dan Murphy <dmurphy@...com>
> ---
>  .../devicetree/bindings/net/ti,dp83869.yaml      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/ti,dp83869.yaml b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
> index 5b69ef03bbf7..2971dd3fc039 100644
> --- a/Documentation/devicetree/bindings/net/ti,dp83869.yaml
> +++ b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
> @@ -64,6 +64,20 @@ properties:
>         Operational mode for the PHY.  If this is not set then the operational
>         mode is set by the straps. see dt-bindings/net/ti-dp83869.h for values
>  
> +  rx-internal-delay-ps:
> +    $ref: "#/properties/rx-internal-delay-ps"

This just creates a circular reference which probably blows up.

> +    description: Delay is in pico seconds
> +    enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
> +            3250, 3500, 3750, 4000 ]
> +    default: 2000
> +
> +  tx-internal-delay-ps:
> +    $ref: "#/properties/tx-internal-delay-ps"
> +    description: Delay is in pico seconds
> +    enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
> +            3250, 3500, 3750, 4000 ]
> +    default: 2000
> +
>  required:
>    - reg
>  
> @@ -80,5 +94,7 @@ examples:
>          ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
>          ti,max-output-impedance = "true";
>          ti,clk-output-sel = <DP83869_CLK_O_SEL_CHN_A_RCLK>;
> +        rx-internal-delay-ps = <2000>;
> +        tx-internal-delay-ps = <2000>;
>        };
>      };
> -- 
> 2.26.2
> 

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