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diff --git a/Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml
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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>;
+    };