dt-bindings: interrupt-controller: Convert amazon,al-fic to DT schema

Convert the Amazon FIC interrupt controller binding to schema format.
It's a straight-forward conversion of the typical interrupt controller.

Link: https://lore.kernel.org/r/20250505144548.1286525-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt

@@ -1,27 +0,0 @@
-Amazon's Annapurna Labs Fabric Interrupt Controller
-
-Required properties:
-
-- compatible: should be "amazon,al-fic"
-- reg: physical base address and size of the registers
-- interrupt-controller: identifies the node as an interrupt controller
-- #interrupt-cells : must be 2. Specifies the number of cells needed to encode
-  an interrupt source. Supported trigger types are low-to-high edge
-  triggered and active high level-sensitive.
-- interrupts: describes which input line in the interrupt parent, this
-  fic's output is connected to. This field property depends on the parent's
-  binding
-
-Please refer to interrupts.txt in this directory for details of the common
-Interrupt Controllers bindings used by client devices.
-
-Example:
-
-amazon_fic: interrupt-controller@fd8a8500 {
-	compatible = "amazon,al-fic";
-	interrupt-controller;
-	#interrupt-cells = <2>;
-	reg = <0x0 0xfd8a8500 0x0 0x1000>;
-	interrupt-parent = <&gic>;
-	interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>;
-};

Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.yaml

@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/amazon,al-fic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amazon Annapurna Labs Fabric Interrupt Controller
+
+maintainers:
+  - Talel Shenhar <talel@amazon.com>
+
+properties:
+  compatible:
+    const: amazon,al-fic
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - '#interrupt-cells'
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    interrupt-controller@fd8a8500 {
+        compatible = "amazon,al-fic";
+        reg = <0xfd8a8500 0x1000>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>;
+    };

MAINTAINERS

@@ -940,7 +940,7 @@ F:	include/linux/altera_uart.h
 AMAZON ANNAPURNA LABS FIC DRIVER
 M:	Talel Shenhar <talel@amazon.com>
 S:	Maintained
-F:	Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt
+F:	Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.yaml
 F:	drivers/irqchip/irq-al-fic.c
 
 AMAZON ANNAPURNA LABS MEMORY CONTROLLER EDAC