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diff --git a/Bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml b/Bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 NMI/Wakeup Interrupt Controller
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ "#interrupt-cells":
+ const: 3
+ description:
+ The first cell is GIC_SPI (0), the second cell is the IRQ number, and
+ the third cell is the trigger type as defined in interrupt.txt in this
+ directory.
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun6i-a31-r-intc
+ - items:
+ - enum:
+ - allwinner,sun8i-a83t-r-intc
+ - allwinner,sun8i-h3-r-intc
+ - allwinner,sun50i-a64-r-intc
+ - const: allwinner,sun6i-a31-r-intc
+ - const: allwinner,sun50i-h6-r-intc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description:
+ The GIC interrupt labeled as "External NMI".
+
+ interrupt-controller: true
+
+required:
+ - "#interrupt-cells"
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ r_intc: interrupt-controller@1f00c00 {
+ compatible = "allwinner,sun50i-a64-r-intc",
+ "allwinner,sun6i-a31-r-intc";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x01f00c00 0x400>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+...