Re: [PATCH net-next v4 1/3] dt-bindings: net: ethernet-phy: add property tx-amplitude-100base-tx-percent

[Conor Dooley <conor@kernel.org>]

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On Tue, Feb 11, 2025 at 09:33:47AM +0100, Dimitri Fedrau via B4 Relay wrote:
> From: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
> 
> Add property tx-amplitude-100base-tx-percent in the device tree bindings
> for configuring the tx amplitude of 100BASE-TX PHYs. Modifying it can be
> necessary to compensate losses on the PCB and connector, so the voltages
> measured on the RJ45 pins are conforming.
> 
> Signed-off-by: Dimitri Fedrau <dimitri.fedrau@liebherr.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>

> ---
>  Documentation/devicetree/bindings/net/ethernet-phy.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> index 2c71454ae8e362e7032e44712949e12da6826070..e0c001f1690c1eb9b0386438f2d5558fd8c94eca 100644
> --- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> +++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> @@ -232,6 +232,12 @@ properties:
>        PHY's that have configurable TX internal delays. If this property is
>        present then the PHY applies the TX delay.
>  
> +  tx-amplitude-100base-tx-percent:
> +    description:
> +      Transmit amplitude gain applied for 100BASE-TX. When omitted, the PHYs
> +      default will be left as is.
> +    default: 100
> +
>    leds:
>      type: object
>  
> 
> -- 
> 2.39.5
> 
> 

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