linux-kernel - [PATCH v4 3/6] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 combo HS phy

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Message-Id: <20250701120706.2219355-4-pritam.sutar@samsung.com>
Date: Tue,  1 Jul 2025 17:37:03 +0530
From: Pritam Manohar Sutar <pritam.sutar@...sung.com>
To: 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,
	neil.armstrong@...aro.org, kauschluss@...root.org,
	ivo.ivanov.ivanov1@...il.com, m.szyprowski@...sung.com,
	s.nawrocki@...sung.com, pritam.sutar@...sung.com
Cc: 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: [PATCH v4 3/6] dt-bindings: phy: samsung,usb3-drd-phy: add
 ExynosAutov920 combo HS phy

This phy supports USB3.1 SSP+(10Gbps) protocol and is backwards
compatible to the USB3.0 SS(5Gbps). 'Add-on USB2.0' phy is added
to support USB2.0 HS(480Mbps), FS(12Mbps) and LS(1.5Mbps) data rates.
These two phys are combined to form a combo phy.

Add a dedicated compatible string for USB combo HS phy found in this
SoC. The SoC requires two clocks, named "phy" and "ref" and various
power supplies (regulators) for the internal circuitry to work.
The required voltages are:
* avdd075_usb - 0.75v
* avdd18_usb20 - 1.8v
* avdd33_usb20 - 3.3v

Add schema only for 'Add-on USB2.0' HS phy in this combo phy.

Signed-off-by: Pritam Manohar Sutar <pritam.sutar@...sung.com>
---
 Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
index 2e29ff749bba..b024339b5acc 100644
--- a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
@@ -34,6 +34,7 @@ properties:
       - samsung,exynos7870-usbdrd-phy
       - samsung,exynos850-usbdrd-phy
       - samsung,exynos990-usbdrd-phy
+      - samsung,exynosautov920-usbdrd-combo-hsphy
       - samsung,exynosautov920-usbdrd-phy
 
   clocks:
@@ -250,6 +251,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - samsung,exynosautov920-usbdrd-combo-hsphy
               - samsung,exynosautov920-usbdrd-phy
     then:
       properties:
-- 
2.34.1