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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/samsung,usb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S5P/Exynos SoC USB 2.0 PHY
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Marek Szyprowski <m.szyprowski@samsung.com>
+ - Sylwester Nawrocki <s.nawrocki@samsung.com>
+
+description: |
+ The first phandle argument in the PHY specifier identifies the PHY, its
+ meaning is compatible dependent. For the currently supported SoCs (Exynos4210
+ and Exynos4212) it is as follows::
+ 0 - USB device ("device"),
+ 1 - USB host ("host"),
+ 2 - HSIC0 ("hsic0"),
+ 3 - HSIC1 ("hsic1"),
+ Exynos3250 has only USB device phy available as phy 0.
+
+ Exynos4210 and Exynos4212 use mode switching and require that mode switch
+ register is supplied.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos3250-usb2-phy
+ - samsung,exynos4210-usb2-phy
+ - samsung,exynos4x12-usb2-phy
+ - samsung,exynos5250-usb2-phy
+ - samsung,exynos5420-usb2-phy
+ - samsung,s5pv210-usb2-phy
+
+ clocks:
+ items:
+ - description: PHY module gate clock.
+ - description: Reference rate clock of PHY module.
+
+ clock-names:
+ items:
+ - const: phy
+ - const: ref
+
+ "#phy-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ samsung,pmureg-phandle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to PMU system controller interface.
+
+ samsung,sysreg-phandle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to system registers interface.
+
+ vbus-supply:
+ description:
+ VBUS power source.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - "#phy-cells"
+ - reg
+ - samsung,pmureg-phandle
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos4x12-usb2-phy
+ - samsung,exynos5250-usb2-phy
+ - samsung,exynos5420-usb2-phy
+ then:
+ required:
+ - samsung,sysreg-phandle
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5420.h>
+
+ phy@12130000 {
+ compatible = "samsung,exynos5420-usb2-phy";
+ reg = <0x12130000 0x100>;
+ #phy-cells = <1>;
+ clocks = <&clock CLK_USBH20>, <&clock CLK_SCLK_USBPHY300>;
+ clock-names = "phy", "ref";
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
+ samsung,pmureg-phandle = <&pmu_system_controller>;
+ };