linux-kernel - RE: [PATCH 2/4] dt-bindings: phy: Add PCIe PHY support for ExynosAutov920 SoC

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Message-ID: <000601dc552c$a63e6060$f2bb2120$@samsung.com>
Date: Fri, 14 Nov 2025 15:05:16 +0900
From: "Sanghoon Bae" <sh86.bae@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>, <robh@...nel.org>,
	<conor+dt@...nel.org>, <vkoul@...nel.org>, <alim.akhtar@...sung.com>,
	<kishon@...nel.org>, <m.szyprowski@...sung.com>, <jh80.chung@...sung.com>,
	<shradha.t@...sung.com>
Cc: <krzk+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-samsung-soc@...r.kernel.org>,
	<linux-phy@...ts.infradead.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH 2/4] dt-bindings: phy: Add PCIe PHY support for
 ExynosAutov920 SoC

> > Since the Exynosautov920 SoC uses the Samsung PCIe PHY, add support
> > for it in the Exynosautov920 PCIe PHY bindings.
> >
> > The Exynosautov920 SoC includes two PHY instances: one for a 4-lane
> > PHY and another for a 2-lane PHY. Each PHY can be used by separate
> > controllers through the bifurcation option. Therefore, from 2 up to 4
> > PCIe controllers can be supported and connected with this PHY driver.
> 
> 
> Describe hardware, not driver.
I will describe about the Exynosautov920 SoC PCIe hardware.

> > PCIe lane number is used to distinguish each PHY instance.
> > This is required since two PHY instances on ExynosAutov920 is not
> > identical.
> > On PHY driver code, need to check each instance and different settings.
> 
> 
> Describe hardware, not driver.
I will describe about the Exynosautov920 SoC PCIe hardware.

> > @@ -19,6 +19,7 @@ properties:
> >        - samsung,exynos5433-pcie-phy
> >        - tesla,fsd-pcie-phy0
> >        - tesla,fsd-pcie-phy1
> > +      - samsung,exynosautov920-pcie-phy
> 
> Messed order.
Will fix the order

> > @@ -42,6 +47,7 @@ allOf:
> >              enum:
> >                - tesla,fsd-pcie-phy0
> >                - tesla,fsd-pcie-phy1
> > +              - samsung,exynosautov920-pcie-phy
> 
> Messed order.
Will fix the order