linux-kernel - Re: [PATCH 1/2] dt-bindings: phy: mediatek,xfi-tphy: add new bindings

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Date: Fri, 2 Feb 2024 15:24:20 -0600
From: Rob Herring <robh@...nel.org>
To: Daniel Golle <daniel@...rotopia.org>
Cc: Bc-bocun Chen <bc-bocun.chen@...iatek.com>,
	Steven Liu <steven.liu@...iatek.com>,
	John Crispin <john@...ozen.org>,
	Chunfeng Yun <chunfeng.yun@...iatek.com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Qingfang Deng <dqfext@...il.com>,
	SkyLake Huang <SkyLake.Huang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: phy: mediatek,xfi-tphy: add new bindings

On Thu, Feb 01, 2024 at 09:52:20PM +0000, Daniel Golle wrote:
> Add bindings for the MediaTek XFI T-PHY Ethernet SerDes PHY found in the
> MediaTek MT7988 SoC which can operate at various interfaces modes:

This is v4 unless I'm confused[1]. Where's the revision history?

Rob

[1] https://lore.kernel.org/all/b875f693f6d4367a610a12ef324584f3bf3a1c1c.1702352117.git.daniel@makrotopia.org/

> 
> via USXGMII PCS:
>  * USXGMII
>  * 10GBase-R
>  * 5GBase-R
> 
> via LynxI SGMII PCS:
>  * 2500Base-X
>  * 1000Base-X
>  * Cisco SGMII (MAC side)
> 
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>  .../bindings/phy/mediatek,xfi-tphy.yaml       | 80 +++++++++++++++++++
>  1 file changed, 80 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/mediatek,xfi-tphy.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/mediatek,xfi-tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,xfi-tphy.yaml
> new file mode 100644
> index 0000000000000..e897118dcf7e6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/mediatek,xfi-tphy.yaml
> @@ -0,0 +1,80 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/mediatek,xfi-tphy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek XFI T-PHY
> +
> +maintainers:
> +  - Daniel Golle <daniel@...rotopia.org>
> +
> +description:
> +  The MediaTek XFI SerDes T-PHY provides the physical SerDes lanes
> +  used by the (10G/5G) USXGMII PCS and (1G/2.5G) LynxI PCS found in
> +  MediaTek's 10G-capabale SoCs.
> +
> +properties:
> +  $nodename:
> +    pattern: "^phy@[0-9a-f]+$"
> +
> +  compatible:
> +    const: mediatek,mt7988-xfi-tphy
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: XFI PHY clock
> +      - description: XFI register clock
> +
> +  clock-names:
> +    items:
> +      - const: xfipll
> +      - const: topxtal
> +
> +  resets:
> +    items:
> +      - description: PEXTP reset

What is PEXTP?