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

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Date: Fri, 2 Feb 2024 21:36:39 +0000
From: Daniel Golle <daniel@...rotopia.org>
To: Rob Herring <robh@...nel.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 Fri, Feb 02, 2024 at 03:24:20PM -0600, Rob Herring wrote:
> 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?

It's a new series only covering the XFI T-PHY driver.
However, I should have written a cover letter referencing the previous
series to netdev. Sorry for that and thank you for pointing it out.

> 
> 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?
>