linux-kernel - RE: [PATCH v3 4/9] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 combo HS phy

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Message-ID: <000501dbdfb2$4f6f0450$ee4d0cf0$@samsung.com>
Date: Tue, 17 Jun 2025 23:34:42 +0530
From: "Pritam Manohar Sutar" <pritam.sutar@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>
Cc: <vkoul@...nel.org>, <kishon@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <alim.akhtar@...sung.com>,
	<andre.draszik@...aro.org>, <peter.griffin@...aro.org>,
	<kauschluss@...root.org>, <ivo.ivanov.ivanov1@...il.com>,
	<m.szyprowski@...sung.com>, <s.nawrocki@...sung.com>,
	<linux-phy@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-samsung-soc@...r.kernel.org>, <rosa.pila@...sung.com>,
	<dev.tailor@...sung.com>, <faraz.ata@...sung.com>,
	<muhammed.ali@...sung.com>, <selvarasu.g@...sung.com>
Subject: RE: [PATCH v3 4/9] dt-bindings: phy: samsung,usb3-drd-phy: add
 ExynosAutov920 combo HS phy

Hi Krzysztof,

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: 16 June 2025 01:46 PM
> To: Pritam Manohar Sutar <pritam.sutar@...sung.com>
> Cc: vkoul@...nel.org; kishon@...nel.org; robh@...nel.org;
> krzk+dt@...nel.org; conor+dt@...nel.org; alim.akhtar@...sung.com;
> andre.draszik@...aro.org; peter.griffin@...aro.org; kauschluss@...root.org;
> ivo.ivanov.ivanov1@...il.com; m.szyprowski@...sung.com;
> s.nawrocki@...sung.com; linux-phy@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-arm-
> kernel@...ts.infradead.org; linux-samsung-soc@...r.kernel.org;
> rosa.pila@...sung.com; dev.tailor@...sung.com;
> faraz.ata@...sung.com; muhammed.ali@...sung.com;
> selvarasu.g@...sung.com
> Subject: Re: [PATCH v3 4/9] dt-bindings: phy: samsung,usb3-drd-phy: add
> ExynosAutov920 combo HS phy
> 
> On Fri, Jun 13, 2025 at 11:26:08AM GMT, Pritam Manohar Sutar wrote:
> > Add a dedicated compatible string for USB combo HS phy found in this
> 
> I reviewed patch #1, then went here and see that this is HS PHY. So patch #1
> is not HS PHY?
> 

https://lore.kernel.org/linux-phy/20250613055613.866909-1-pritam.sutar@samsung.com/
This Soc has 2 types HS phys. one in combo phy and another stand-alone. please refer the block diagrams in cover-letter. 
	
	1. samsung,exynosautov920-usbdrd-phy => represents hs phy (synopsys phy version-303) and it is same as "samsung,exynos850-usbdrd-phy". used same naming conventions
	2. samsung,exynosautov920-usbdrd-hsphy => represents 'Add-on' HS phy(synopsys phy version-400) with SS phy in combo phy. this is different from "samsung,exynosautov920-usbdrd-phy" (reg offsets and bits are different). 
	samsung,exynosautov920-usb31drd-ssphy =>  represents SS phy in combo phy

> Best regards,
> Krzysztof

Thank you.

Regards,
Pritam