[PATCH 05/13] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC

[Jiaxun Yang]

Document Loongson-3 I/O Interrupt controller.

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
 .../loongson,ls3-iointc.yaml                  | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-iointc.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-iointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-iointc.yaml
new file mode 100644
index 000000000000..cc6ac8b2cd7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,ls3-iointc.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/interrupt-controller/loongson,ls3-iointc.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Loongson-3 I/O Interrupt Controller
+
+maintainers:
+  - Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
+
+description: |
+  This interrupt controller is found in the Loongson-3 family of chips as the primary
+  package interrupt source which can route interrupt to interrupt line of cores.
+
+properties:
+  compatible:
+    items:
+      - enum:
+        - loongson,ls3-iointc
+
+  reg:
+    maxItems: 1
+
+  'loongson,map-ip':
+    description:
+      The interrupt line it's going to map to.
+    allOf:
+      - maximum: 5
+        minimum: 0
+        
+  'loongson,map-core':
+    description:
+      The core it's going to map to.
+    allOf:
+      - maximum: 5
+        minimum: 0
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-controller
+  - '#interrupt-cells'
+
+examples:
+  - |
+    iointc: interrupt-controller@3ff01400 {
+        compatible = "loongson,ls3-io-intc";
+        reg = <0x3ff01400 0x60>;
+        interrupts = <2>;
+        loongson,map-ip = <0>;
+        loongson,map-core = <0>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+    };
-- 
2.22.0