dt-bindings: interrupt-controller: Convert microchip,pic32mzda-evic to DT schema

Convert the Microchip PIC32 interrupt controller binding to schema
format. It's a straight-forward conversion of the typical interrupt
controller.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250505144754.1291072-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
deleted file mode 100644 (file)
index c3a1b37..0000000
--- a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-Microchip PIC32 Interrupt Controller
-====================================
-
-The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC).
-It handles all internal and external interrupts. This controller exists outside
-of the CPU and is the arbitrator of all interrupts (including interrupts from
-the CPU itself) before they are presented to the CPU.
-
-External interrupts have a software configurable edge polarity. Non external
-interrupts have a type and polarity that is determined by the source of the
-interrupt.
-
-Required properties
--------------------
-
-- compatible: Should be "microchip,pic32mzda-evic"
-- reg: Specifies physical base address and size of register range.
-- interrupt-controller: Identifies the node as an interrupt controller.
-- #interrupt cells: Specifies the number of cells used to encode an interrupt
-  source connected to this controller. The value shall be 2 and interrupt
-  descriptor shall have the following format:
-
-       <hw_irq irq_type>
-
-  hw_irq - represents the hardware interrupt number as in the data sheet.
-  irq_type - is used to describe the type and polarity of an interrupt. For
-  internal interrupts use IRQ_TYPE_EDGE_RISING for non persistent interrupts and
-  IRQ_TYPE_LEVEL_HIGH for persistent interrupts. For external interrupts use
-  IRQ_TYPE_EDGE_RISING or IRQ_TYPE_EDGE_FALLING to select the desired polarity.
-
-Optional properties
--------------------
-- microchip,external-irqs: u32 array of external interrupts with software
-  polarity configuration. This array corresponds to the bits in the INTCON
-  SFR.
-
-Example
--------
-
-evic: interrupt-controller@1f810000 {
-       compatible = "microchip,pic32mzda-evic";
-       interrupt-controller;
-       #interrupt-cells = <2>;
-       reg = <0x1f810000 0x1000>;
-       microchip,external-irqs = <3 8 13 18 23>;
-};
-
-Each device/peripheral must request its interrupt line with the associated type
-and polarity.
-
-Internal interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
-       ...
-       interrupts = <113 IRQ_TYPE_LEVEL_HIGH>;
-       ...
-};
-
-External interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
-       ...
-       interrupts = <3 IRQ_TYPE_EDGE_RISING>;
-       ...
-};

diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml
new file mode 100644 (file)
index 0000000..74bfc42
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/microchip,pic32mzda-evic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIC32 EVIC Interrupt Controller
+
+maintainers:
+  - Cristian Birsan <cristian.birsan@microchip.com>
+
+description: >
+  The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC).
+  It handles all internal and external interrupts. This controller exists
+  outside of the CPU and is the arbitrator of all interrupts (including
+  interrupts from the CPU itself) before they are presented to the CPU.
+
+  External interrupts have a software configurable edge polarity. Non external
+  interrupts have a type and polarity that is determined by the source of the
+  interrupt.
+
+properties:
+  compatible:
+    items:
+      - const: microchip,pic32mzda-evic
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+  microchip,external-irqs:
+    description:
+      External interrupts with software polarity configuration corresponding to
+      the INTCON SFR bits.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+      interrupt-controller@1f810000 {
+          compatible = "microchip,pic32mzda-evic";
+          reg = <0x1f810000 0x1000>;
+          interrupt-controller;
+          #interrupt-cells = <2>;
+          microchip,external-irqs = <3 8 13 18 23>;
+      };