dt-bindings: interrupt-controller: Convert Broadcom STB L2 to YAML

Convert the Broadcom STB L2 generic Level 2 interrupt controller Device
Tree binding to YAML to help with validation.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211208003727.3596577-10-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt

-Broadcom Generic Level 2 Interrupt Controller
-
-Required properties:
-
-- compatible: should be one of:
-	      "brcm,hif-spi-l2-intc" or
-	      "brcm,upg-aux-aon-l2-intc" or
-	      "brcm,l2-intc" for latched interrupt controllers
-              should be "brcm,bcm7271-l2-intc" for level interrupt controllers
-- reg: specifies the 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. Should be 1.
-- interrupts: specifies the interrupt line in the interrupt-parent irq space
-  to be used for cascading
-
-Optional properties:
-
-- brcm,irq-can-wake: If present, this means the L2 controller can be used as a
-  wakeup source for system suspend/resume.
-
-Example:
-
-hif_intr2_intc: interrupt-controller@f0441000 {
-	compatible = "brcm,l2-intc";
-	reg = <0xf0441000 0x30>;
-	interrupt-controller;
-	#interrupt-cells = <1>;
-	interrupt-parent = <&intc>;
-	interrupts = <0x0 0x20 0x0>;
-};

Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Generic Level 2 Interrupt Controller
+
+maintainers:
+  - Florian Fainelli <f.fainelli@gmail.com>
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - brcm,hif-spi-l2-intc
+              - brcm,upg-aux-aon-l2-intc
+          - const: brcm,l2-intc
+      - items:
+          - enum:
+              - brcm,bcm2711-l2-intc
+          - const: brcm,l2-intc
+      - items:
+          - const: brcm,bcm7271-l2-intc
+      - items:
+          - const: brcm,l2-intc
+
+  reg:
+    maxItems: 1
+    description: >
+      Specifies the base physical address and size of the registers
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    maxItems: 1
+
+  brcm,irq-can-wake:
+    type: boolean
+    description: >
+      If present, this means the L2 controller can be used as a wakeup source
+      for system suspend/resume.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - "#interrupt-cells"
+  - interrupts
+
+examples:
+  - |
+    hif_intr2_intc: interrupt-controller@f0441000 {
+      compatible = "brcm,l2-intc";
+      reg = <0xf0441000 0x30>;
+      interrupt-controller;
+      #interrupt-cells = <1>;
+      interrupt-parent = <&intc>;
+      interrupts = <0x0 0x20 0x0>;
+    };