netdev - Re: [PATCH RFC net-next 1/2] Add en8811h bindings documentation yaml

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Date: Sat, 16 Dec 2023 20:57:30 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Eric Woudstra <ericwouds@...il.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Frank Wunderlich <frank-w@...lic-files.de>,
	Daniel Golle <daniel@...rotopia.org>,
	Lucien Jheng <lucien.jheng@...oha.com>,
	Zhi-Jun You <hujy652@...tonmail.com>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH RFC net-next 1/2] Add en8811h bindings documentation yaml

On Sat, Dec 16, 2023 at 08:43:17PM +0100, Eric Woudstra wrote:
> The en8811h phy can be set with serdes polarity reversed on rx and/or tx.
> 
> Signed-off-by: Eric Woudstra <ericwouds@...il.com>
> ---
>  .../bindings/net/airoha,en8811h.yaml          | 42 +++++++++++++++++++
>  1 file changed, 42 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/airoha,en8811h.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/airoha,en8811h.yaml b/Documentation/devicetree/bindings/net/airoha,en8811h.yaml
> new file mode 100644
> index 000000000000..96febd8ed6fa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/airoha,en8811h.yaml
> @@ -0,0 +1,42 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/airoha,en8811h.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Airoha EN8811H PHY
> +
> +maintainers:
> +  - Someone <someone@...email.com>
> +
> +description:
> +  Bindings for Airoha EN8811H PHY
> +
> +allOf:
> +  - $ref: ethernet-phy.yaml#
> +
> +properties:
> +  airoha,rx-pol-reverse:
> +    type: boolean
> +    description:
> +      Reverse rx polarity of SERDES.
> +
> +
> +  airoha,tx-pol-reverse:
> +    type: boolean
> +    description:
> +      Reverse tx polarity of SERDES.

Is this to deal with wiring up the SERDES backwards? Is there a more
detailed description in the data sheet?

   Andrew