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diff --git a/dts/Bindings/arm/rockchip/pmu.yaml b/dts/Bindings/arm/rockchip/pmu.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/rockchip/pmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip Power Management Unit (PMU)
+
+maintainers:
+  - Elaine Zhang <zhangqing@rock-chips.com>
+  - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+  The PMU is used to turn on and off different power domains of the SoCs.
+  This includes the power to the CPU cores.
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - rockchip,px30-pmu
+          - rockchip,rk3066-pmu
+          - rockchip,rk3288-pmu
+          - rockchip,rk3399-pmu
+
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - rockchip,px30-pmu
+          - rockchip,rk3066-pmu
+          - rockchip,rk3288-pmu
+          - rockchip,rk3399-pmu
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: true
+
+examples:
+  - |
+    pmu@20004000 {
+      compatible = "rockchip,rk3066-pmu", "syscon", "simple-mfd";
+      reg = <0x20004000 0x100>;
+    };