[PATCH 2/2] dt-bindings: interrupt-controller: loongson ls1x intc

[Jiaxun Yang]

Dt-bindings doc about Loongson-1 interrupt controller

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
 .../loongson,ls1x-intc.txt                    | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,ls1x-intc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,ls1x-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/loongson,ls1x-intc.txt
new file mode 100644
index 000000000000..afa8fec45f88
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,ls1x-intc.txt
@@ -0,0 +1,28 @@
+Loongson ls1x Interrupt Controller
+
+Required properties:
+
+- compatible : should be "ingenic,<socname>-intc". Valid strings are:
+    loongson,ls1b-intc
+    loongson,ls1c-intc
+
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value shall be 1.
+- interrupts : Specifies the CPU interrupts the controller is connected to,
+    - For ls1b, it must have 4 interrupts.
+    - For ls1c, it must have 5 interrupts.
+
+Example:
+
+intc: interrupt-controller@1fd01040 {
+	compatible = "loongson,ls1c-intc";
+	reg = <0x1fd01040 0x78>;
+
+	interrupt-controller;
+	#interrupt-cells = <1>;
+
+	interrupt-parent = <&cpu_intc>;
+	interrupts = <2>, <3>, <4>, <5>, <6>;
+};
\ No newline at end of file
-- 
2.20.1