From e4c9a7b475e5d0d9b2440ee48f91d1364eabd6cb Mon Sep 17 00:00:00 2001 From: Ivaylo Ivanov Date: Sun, 4 May 2025 17:45:19 +0300 Subject: [PATCH] dt-bindings: phy: samsung,usb3-drd-phy: add exynos2200 support Document support for Exynos2200. As the USBDRD 3.2 4nm controller consists of Synopsys eUSB2.0 phy and USBDP/SS combophy, which will be handled by external drivers, define only the bus clocked used by the link controller. Signed-off-by: Ivaylo Ivanov Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250504144527.1723980-3-ivo.ivanov.ivanov1@gmail.com Signed-off-by: Vinod Koul --- .../bindings/phy/samsung,usb3-drd-phy.yaml | 38 +++++++++++++++++-- 1 file changed, 34 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml index fdddddc7d611..cc60d2f6f70e 100644 --- a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml +++ b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml @@ -26,6 +26,7 @@ properties: compatible: enum: - google,gs101-usb31drd-phy + - samsung,exynos2200-usb32drd-phy - samsung,exynos5250-usbdrd-phy - samsung,exynos5420-usbdrd-phy - samsung,exynos5433-usbdrd-phy @@ -34,24 +35,32 @@ properties: - samsung,exynos850-usbdrd-phy clocks: - minItems: 2 + minItems: 1 maxItems: 5 clock-names: - minItems: 2 + minItems: 1 maxItems: 5 description: | - At least two clocks:: + Typically two clocks: - Main PHY clock (same as USB DRD controller i.e. DWC3 IP clock), used for register access. - PHY reference clock (usually crystal clock), used for PHY operations, associated by phy name. It is used to determine bit values for clock settings register. For Exynos5420 this is given as 'sclk_usbphy30' - in the CMU. + in the CMU. It's not needed for Exynos2200. "#phy-cells": const: 1 + phys: + maxItems: 1 + description: + USBDRD-underlying high-speed PHY + + phy-names: + const: hs + port: $ref: /schemas/graph.yaml#/properties/port description: @@ -151,6 +160,27 @@ allOf: - vdda-usbdp-supply - vddh-usbdp-supply + - if: + properties: + compatible: + contains: + enum: + - samsung,exynos2200-usb32drd-phy + then: + properties: + clocks: + maxItems: 1 + clock-names: + items: + - const: phy + reg: + maxItems: 1 + reg-names: + maxItems: 1 + required: + - phys + - phy-names + - if: properties: compatible: -- 2.25.1