Subject: Re: [PATCH v3 7/8] dt-bindings: net: phy: Add 10-baseT1L 2.4 Vpp

From: Rob Herring <[email-masked]>
Date: Mon, 18 Oct 2021 14:06:19 -0500

On Mon, Oct 11, 2021 at 05:22:14PM +0300, [email-masked] wrote:
> From: Alexandru Tachici <[email-masked]>
> 
> Add a tristate property to advertise desired transmit level.
> 
> If the device supports the 2.4 Vpp operating mode for 10BASE-T1L,
> as defined in 802.3gc, and the 2.4 Vpp transmit voltage operation
> is desired, property should be set to 1. This property is used
> to select whether Auto-Negotiation advertises a request to
> operate the 10BASE-T1L PHY in increased transmit level mode.
> 
> If property is set to 1, the PHY shall advertise a request
> to operate the 10BASE-T1L PHY in increased transmit level mode.
> If property is set to zero, the PHY shall not advertise
> a request to operate the 10BASE-T1L PHY in increased transmit level mode.
> 
> Signed-off-by: Alexandru Tachici <[email-masked]>
> ---
>  Documentation/devicetree/bindings/net/ethernet-phy.yaml | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> index 2766fe45bb98..2bb3a96612a2 100644
> --- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> +++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
> @@ -77,6 +77,15 @@ properties:
>      description:
>        Maximum PHY supported speed in Mbits / seconds.
>  
> +  an-10base-t1l-2.4vpp:

What does 'an' mean?

> +    description: |
> +      tristate, request/disable 2.4 Vpp operating mode. The values are:
> +      0: Disable 2.4 Vpp operating mode.
> +      1: Request 2.4 Vpp operating mode from link partner.
> +      Absence of this property will leave configuration to default values.
> +    $ref: "/schemas/types.yaml#/definitions/uint32"
> +    enum: [0, 1]

What happened to this one doing the same thing?:

https://lore.kernel.org/lkml/[email-masked]/