--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/hisilicon/controller/cpuctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon CPU controller
+
+maintainers:
+ - Wei Xu <xuwei5@hisilicon.com>
+
+description: |
+ The clock registers and power registers of secondary cores are defined
+ in CPU controller, especially in HIX5HD2 SoC.
+
+properties:
+ compatible:
+ items:
+ - const: hisilicon,cpuctrl
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+...
+++ /dev/null
-Hisilicon CPU controller
-
-Required properties:
-- compatible : "hisilicon,cpuctrl"
-- reg : Register address and size
-
-The clock registers and power registers of secondary cores are defined
-in CPU controller, especially in HIX5HD2 SoC.