dt-bindings: interrupt-controller: Convert Amlogic Meson GPIO interrupt controller binding

Convert Amlogic Meson GPIO interrupt controller binding to yaml.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/e06e9f26-cf55-5596-c799-d698e9d7b409@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Author: hkallweit

Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt

@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/amlogic,meson-gpio-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson GPIO interrupt controller
+
+maintainers:
+  - Heiner Kallweit <hkallweit1@gmail.com>
+
+description: |
+  Meson SoCs contains an interrupt controller which is able to watch the SoC
+  pads and generate an interrupt on edge or level. The controller is essentially
+  a 256 pads to 8 or 12 GIC interrupt multiplexer, with a filter block to select
+  edge or level and polarity. It does not expose all 256 mux inputs because the
+  documentation shows that the upper part is not mapped to any pad. The actual
+  number of interrupts exposed depends on the SoC.
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: amlogic,meson-gpio-intc
+      - items:
+          - enum:
+              - amlogic,meson8-gpio-intc
+              - amlogic,meson8b-gpio-intc
+              - amlogic,meson-gxbb-gpio-intc
+              - amlogic,meson-gxl-gpio-intc
+              - amlogic,meson-axg-gpio-intc
+              - amlogic,meson-g12a-gpio-intc
+              - amlogic,meson-sm1-gpio-intc
+              - amlogic,meson-a1-gpio-intc
+              - amlogic,meson-s4-gpio-intc
+          - const: amlogic,meson-gpio-intc
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  amlogic,channel-interrupts:
+    description: Array with the upstream hwirq numbers
+    minItems: 8
+    maxItems: 12
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - "#interrupt-cells"
+  - amlogic,channel-interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    interrupt-controller@9880 {
+      compatible = "amlogic,meson-gxbb-gpio-intc",
+                   "amlogic,meson-gpio-intc";
+      reg = <0x9880 0x10>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
+    };