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diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun55i-a523-ccu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A523 Clock Control Unit
+
+maintainers:
+  - Andre Przywara <andre.przywara@arm.com>
+
+properties:
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  compatible:
+    enum:
+      - allwinner,sun55i-a523-ccu
+      - allwinner,sun55i-a523-r-ccu
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 4
+    maxItems: 5
+
+  clock-names:
+    minItems: 4
+    maxItems: 5
+
+required:
+  - "#clock-cells"
+  - "#reset-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          enum:
+            - allwinner,sun55i-a523-ccu
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: High Frequency Oscillator (usually at 24MHz)
+            - description: Low Frequency Oscillator (usually at 32kHz)
+            - description: Internal Oscillator
+            - description: Low Frequency Oscillator fanout
+
+        clock-names:
+          items:
+            - const: hosc
+            - const: losc
+            - const: iosc
+            - const: losc-fanout
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - allwinner,sun55i-a523-r-ccu
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: High Frequency Oscillator (usually at 24MHz)
+            - description: Low Frequency Oscillator (usually at 32kHz)
+            - description: Internal Oscillator
+            - description: Peripherals PLL
+            - description: Audio PLL
+
+        clock-names:
+          items:
+            - const: hosc
+            - const: losc
+            - const: iosc
+            - const: pll-periph
+            - const: pll-audio
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@2001000 {
+        compatible = "allwinner,sun55i-a523-ccu";
+        reg = <0x02001000 0x1000>;
+        clocks = <&osc24M>, <&osc32k>, <&iosc>, <&r_ccu 1>;
+        clock-names = "hosc", "losc", "iosc", "losc-fanout";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
+
+...