dt-bindings: irqchip: convert Samsung Exynos IRQ combiner to dtschema

Convert Samsung Exynos SoC Interrupt Combiner Controller bindings to DT
schema format using json-schema.
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210811084306.28740-1-krzysztof.kozlowski@canonical.comSigned-off-by: NRob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/samsung,exynos4210-combiner.txt

-* Samsung Exynos Interrupt Combiner Controller
-
-Samsung's Exynos4 architecture includes a interrupt combiner controller which
-can combine interrupt sources as a group and provide a single interrupt request
-for the group. The interrupt request from each group are connected to a parent
-interrupt controller, such as GIC in case of Exynos4210.
-
-The interrupt combiner controller consists of multiple combiners. Up to eight
-interrupt sources can be connected to a combiner. The combiner outputs one
-combined interrupt for its eight interrupt sources. The combined interrupt
-is usually connected to a parent interrupt controller.
-
-A single node in the device tree is used to describe the interrupt combiner
-controller module (which includes multiple combiners). A combiner in the
-interrupt controller module shares config/control registers with other
-combiners. For example, a 32-bit interrupt enable/disable config register
-can accommodate up to 4 interrupt combiners (with each combiner supporting
-up to 8 interrupt sources).
-
-Required properties:
-- compatible: should be "samsung,exynos4210-combiner".
-- interrupt-controller: Identifies the node as an interrupt controller.
-- #interrupt-cells: should be <2>. The meaning of the cells are
-	* First Cell: Combiner Group Number.
-	* Second Cell: Interrupt number within the group.
-- reg: Base address and size of interrupt combiner registers.
-- interrupts: The list of interrupts generated by the combiners which are then
-    connected to a parent interrupt controller. The format of the interrupt
-    specifier depends in the interrupt parent controller.
-
-Optional properties:
-- samsung,combiner-nr: The number of interrupt combiners supported. If this
-  property is not specified, the default number of combiners is assumed
-  to be 16.
-
-
-Example:
-
-	The following is a an example from the Exynos4210 SoC dtsi file.
-
-	combiner:interrupt-controller@10440000 {
-		compatible = "samsung,exynos4210-combiner";
-		interrupt-controller;
-		#interrupt-cells = <2>;
-		reg = <0x10440000 0x1000>;
-		interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>,
-			     <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>,
-			     <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>,
-			     <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>;
-	};

Documentation/devicetree/bindings/interrupt-controller/samsung,exynos4210-combiner.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/samsung,exynos4210-combiner.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Interrupt Combiner Controller
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+  Samsung's Exynos4 architecture includes a interrupt combiner controller which
+  can combine interrupt sources as a group and provide a single interrupt
+  request for the group. The interrupt request from each group are connected to
+  a parent interrupt controller, such as GIC in case of Exynos4210.
+
+  The interrupt combiner controller consists of multiple combiners. Up to eight
+  interrupt sources can be connected to a combiner. The combiner outputs one
+  combined interrupt for its eight interrupt sources. The combined interrupt is
+  usually connected to a parent interrupt controller.
+
+  A single node in the device tree is used to describe the interrupt combiner
+  controller module (which includes multiple combiners). A combiner in the
+  interrupt controller module shares config/control registers with other
+  combiners. For example, a 32-bit interrupt enable/disable config register can
+  accommodate up to 4 interrupt combiners (with each combiner supporting up to
+  8 interrupt sources).
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    const: samsung,exynos4210-combiner
+
+  interrupt-controller: true
+
+  interrupts:
+    minItems: 8
+    maxItems: 32
+
+  "#interrupt-cells":
+    description: |
+      The meaning of the cells are:
+        * First Cell: Combiner Group Number.
+        * Second Cell: Interrupt number within the group.
+    const: 2
+
+  reg:
+    maxItems: 1
+
+  samsung,combiner-nr:
+    description: |
+      The number of interrupt combiners supported.  Should match number
+      of interrupts set in "interrupts" property.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 8
+    maximum: 32
+    default: 16
+
+required:
+  - compatible
+  - interrupt-controller
+  - interrupts
+  - "#interrupt-cells"
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    interrupt-controller@10440000 {
+        compatible = "samsung,exynos4210-combiner";
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        reg = <0x10440000 0x1000>;
+        interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+    };