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[v5,2/6] dt-bindings: interrupt-controller: Add Loongson HTVEC

Message ID 20200528152757.1028711-3-jiaxun.yang@flygoat.com
State Superseded
Headers show
Series Three Loongson irqchip support | expand

Commit Message

Jiaxun Yang May 28, 2020, 3:27 p.m. UTC 
Add binding for Loongson-3 HyperTransport Interrupt Vector Controller.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
--
v4: Drop ref, '|', add additionalProperties, fix example
---
 .../interrupt-controller/loongson,htvec.yaml  | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,htvec.yaml
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Patch

diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,htvec.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,htvec.yaml
new file mode 100644
index 000000000000..e865cd8f96a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,htvec.yaml
@@ -0,0 +1,57 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/interrupt-controller/loongson,htvec.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Loongson-3 HyperTransport Interrupt Vector Controller
+
+maintainers:
+  - Jiaxun Yang <jiaxun.yang@flygoat.com>
+
+description:
+  This interrupt controller is found in the Loongson-3 family of chips for
+  receiving vectorized interrupts from PCH's interrupt controller.
+
+properties:
+  compatible:
+    const: loongson,htvec-1.0
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 4
+    description: Four parent interrupts that receive chained interrupts.
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-controller
+  - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    htvec: interrupt-controller@fb000080 {
+      compatible = "loongson,htvec-1.0";
+      reg = <0xfb000080 0x40>;
+      interrupt-controller;
+      #interrupt-cells = <1>;
+
+      interrupt-parent = <&liointc>;
+      interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+                    <25 IRQ_TYPE_LEVEL_HIGH>,
+                    <26 IRQ_TYPE_LEVEL_HIGH>,
+                    <27 IRQ_TYPE_LEVEL_HIGH>;
+    };
+...