dt-bindings: interrupt-controller: Convert snps,dw-apb-ictl to DT schema

Convert the Synopsys DW-APB interrupt controller binding to schema
format. It's a straight-forward conversion of the typical interrupt
controller.

Link: https://lore.kernel.org/r/20250505144842.1292840-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

2 files changed, 64 insertions, 43 deletions

diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt
deleted file mode 100644
index 2db59df9408f..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-Synopsys DesignWare APB interrupt controller (dw_apb_ictl)
-
-Synopsys DesignWare provides interrupt controller IP for APB known as
-dw_apb_ictl. The IP is used as secondary interrupt controller in some SoCs with
-APB bus, e.g. Marvell Armada 1500. It can also be used as primary interrupt
-controller in some SoCs, e.g. Hisilicon SD5203.
-
-Required properties:
-- compatible: shall be "snps,dw-apb-ictl"
-- reg: physical base address of the controller and length of memory mapped
-  region starting with ENABLE_LOW register
-- interrupt-controller: identifies the node as an interrupt controller
-- #interrupt-cells: number of cells to encode an interrupt-specifier, shall be 1
-
-Additional required property when it's used as secondary interrupt controller:
-- interrupts: interrupt reference to primary interrupt controller
-
-The interrupt sources map to the corresponding bits in the interrupt
-registers, i.e.
-- 0 maps to bit 0 of low interrupts,
-- 1 maps to bit 1 of low interrupts,
-- 32 maps to bit 0 of high interrupts,
-- 33 maps to bit 1 of high interrupts,
-- (optional) fast interrupts start at 64.
-
-Example:
-	/* dw_apb_ictl is used as secondary interrupt controller */
-	aic: interrupt-controller@3000 {
-		compatible = "snps,dw-apb-ictl";
-		reg = <0x3000 0xc00>;
-		interrupt-controller;
-		#interrupt-cells = <1>;
-		interrupt-parent = <&gic>;
-		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-	};
-
-	/* dw_apb_ictl is used as primary interrupt controller */
-	vic: interrupt-controller@10130000 {
-		compatible = "snps,dw-apb-ictl";
-		reg = <0x10130000 0x1000>;
-		interrupt-controller;
-		#interrupt-cells = <1>;
-	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.yaml b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.yaml
new file mode 100644
index 000000000000..6b59b600a037
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/snps,dw-apb-ictl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare APB interrupt controller
+
+maintainers:
+  - Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+  - Zhen Lei <thunder.leizhen@huawei.com>
+
+description:
+  Synopsys DesignWare provides interrupt controller IP for APB known as
+  dw_apb_ictl. The IP is used as secondary interrupt controller in some SoCs
+  with APB bus, e.g. Marvell Armada 1500. It can also be used as primary
+  interrupt controller in some SoCs, e.g. Hisilicon SD5203.
+
+properties:
+  compatible:
+    const: snps,dw-apb-ictl
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+
+  interrupts:
+    maxItems: 1
+    description: >
+      Interrupt input connected to the primary interrupt controller when used
+      as a secondary controller. The interrupt specifier maps to bits in the
+      low and high interrupt registers (0⇒bit 0 low, 1⇒bit 1 low, 32⇒bit 0 high,
+      33⇒bit 1 high, fast interrupts start at 64).
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    interrupt-controller@3000 {
+        compatible = "snps,dw-apb-ictl";
+        reg = <0x3000 0xc00>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+        interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+    };
+  - |
+    interrupt-controller@10130000 {
+        compatible = "snps,dw-apb-ictl";
+        reg = <0x10130000 0x1000>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+    };