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diff --git a/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml
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+++ b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/spacemit/spacemit,k1-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SpacemiT K1 SoC System Controller
+
+maintainers:
+  - Haylen Chu <heylenay@4d2.org>
+
+description:
+  System controllers found on SpacemiT K1 SoC, which are capable of
+  clock, reset and power-management functions.
+
+properties:
+  compatible:
+    enum:
+      - spacemit,k1-syscon-apbc
+      - spacemit,k1-syscon-apmu
+      - spacemit,k1-syscon-mpmu
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: osc
+      - const: vctcxo_1m
+      - const: vctcxo_3m
+      - const: vctcxo_24m
+
+  "#clock-cells":
+    const: 1
+    description:
+      See <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+
+  "#power-domain-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#clock-cells"
+  - "#reset-cells"
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: spacemit,k1-syscon-apbc
+    then:
+      properties:
+        "#power-domain-cells": false
+    else:
+      required:
+        - "#power-domain-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    system-controller@d4050000 {
+        compatible = "spacemit,k1-syscon-mpmu";
+        reg = <0xd4050000 0x209c>;
+        clocks = <&osc>, <&vctcxo_1m>, <&vctcxo_3m>, <&vctcxo_24m>;
+        clock-names = "osc", "vctcxo_1m", "vctcxo_3m", "vctcxo_24m";
+        #clock-cells = <1>;
+        #power-domain-cells = <1>;
+        #reset-cells = <1>;
+    };