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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/atmel,aic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Advanced Interrupt Controller (AIC)
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Dharma balasubiramani <dharma.b@microchip.com>
+
+description:
+ The Advanced Interrupt Controller (AIC) is an 8-level priority, individually
+ maskable, vectored interrupt controller providing handling of up to one
+ hundred and twenty-eight interrupt sources.
+
+properties:
+ compatible:
+ enum:
+ - atmel,at91rm9200-aic
+ - atmel,sama5d2-aic
+ - atmel,sama5d3-aic
+ - atmel,sama5d4-aic
+ - microchip,sam9x60-aic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 3
+ description: |
+ The 1st cell is the IRQ number (Peripheral IDentifier on datasheet).
+ The 2nd cell specifies flags:
+ bits[3:0] trigger type and level flags:
+ 1 = low-to-high edge triggered.
+ 2 = high-to-low edge triggered.
+ 4 = active high level-sensitive.
+ 8 = active low level-sensitive.
+ Valid combinations: 1, 2, 3, 4, 8.
+ Default for internal sources: 4 (active high).
+ The 3rd cell specifies irq priority from 0 (lowest) to 7 (highest).
+
+ interrupts:
+ maxItems: 1
+
+ atmel,external-irqs:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: u32 array of external irqs.
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: atmel,at91rm9200-aic
+ then:
+ properties:
+ atmel,external-irqs:
+ minItems: 1
+ maxItems: 7
+ else:
+ properties:
+ atmel,external-irqs:
+ minItems: 1
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - "#interrupt-cells"
+ - atmel,external-irqs
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ interrupt-controller@fffff000 {
+ compatible = "atmel,at91rm9200-aic";
+ reg = <0xfffff000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ atmel,external-irqs = <31>;
+ };
+...