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diff --git a/Bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml b/Bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A20 Non-Maskable Interrupt Controller
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ "#interrupt-cells":
+ const: 2
+ description:
+ The first cell is the IRQ number, the second cell the trigger
+ type as defined in interrupt.txt in this directory.
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun6i-a31-sc-nmi
+ deprecated: true
+ - const: allwinner,sun7i-a20-sc-nmi
+ - items:
+ - const: allwinner,sun8i-v3s-nmi
+ - const: allwinner,sun9i-a80-nmi
+ - const: allwinner,sun9i-a80-nmi
+ - items:
+ - const: allwinner,sun50i-a100-nmi
+ - const: allwinner,sun9i-a80-nmi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+required:
+ - "#interrupt-cells"
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ interrupt-controller@1c00030 {
+ compatible = "allwinner,sun7i-a20-sc-nmi";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x01c00030 0x0c>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 0 4>;
+ };
+
+...