dt-bindings: gpio: Convert microchip,pic32mzda-gpio to DT schema

Convert the Microchip PIC32 GPIO binding to DT schema format. It's a
straight forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250714202807.3010652-1-robh@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Documentation/devicetree/bindings/gpio/microchip,pic32-gpio.txt

@@ -1,49 +0,0 @@
-* Microchip PIC32 GPIO devices (PIO).
-
-Required properties:
- - compatible: "microchip,pic32mzda-gpio"
- - reg: Base address and length for the device.
- - interrupts: The port interrupt shared by all pins.
- - gpio-controller: Marks the port as GPIO controller.
- - #gpio-cells: Two. The first cell is the pin number and
-   the second cell is used to specify the gpio polarity as defined in
-   defined in <dt-bindings/gpio/gpio.h>:
-      0 = GPIO_ACTIVE_HIGH
-      1 = GPIO_ACTIVE_LOW
-      2 = GPIO_OPEN_DRAIN
- - interrupt-controller: Marks the device node as an interrupt controller.
- - #interrupt-cells: Two. The first cell is the GPIO number and second cell
-   is used to specify the trigger type as defined in
-   <dt-bindings/interrupt-controller/irq.h>:
-      IRQ_TYPE_EDGE_RISING
-      IRQ_TYPE_EDGE_FALLING
-      IRQ_TYPE_EDGE_BOTH
- - clocks: Clock specifier (see clock bindings for details).
- - microchip,gpio-bank: Specifies which bank a controller owns.
- - gpio-ranges: Interaction with the PINCTRL subsystem.
-
-Example:
-
-/* PORTA */
-gpio0: gpio0@1f860000 {
-	compatible = "microchip,pic32mzda-gpio";
-	reg = <0x1f860000 0x100>;
-	interrupts = <118 IRQ_TYPE_LEVEL_HIGH>;
-	#gpio-cells = <2>;
-	gpio-controller;
-	interrupt-controller;
-	#interrupt-cells = <2>;
-	clocks = <&rootclk PB4CLK>;
-	microchip,gpio-bank = <0>;
-	gpio-ranges = <&pic32_pinctrl 0 0 16>;
-};
-
-keys {
-	...
-
-	button@sw1 {
-		label = "ESC";
-		linux,code = <1>;
-		gpios = <&gpio0 12 0>;
-	};
-};

Documentation/devicetree/bindings/gpio/microchip,pic32mzda-gpio.yaml

@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/microchip,pic32mzda-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIC32 GPIO controller
+
+maintainers:
+  - Joshua Henderson <joshua.henderson@microchip.com>
+  - Purna Chandra Mandal <purna.mandal@microchip.com>
+
+properties:
+  compatible:
+    const: microchip,pic32mzda-gpio
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  gpio-ranges: true
+
+  "#gpio-cells":
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  clocks:
+    maxItems: 1
+
+  microchip,gpio-bank:
+    description: Bank index owned by the controller
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - gpio-ranges
+  - "#gpio-cells"
+  - interrupts
+  - interrupt-controller
+  - "#interrupt-cells"
+  - clocks
+  - microchip,gpio-bank
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    gpio@1f860000 {
+        compatible = "microchip,pic32mzda-gpio";
+        reg = <0x1f860000 0x100>;
+        interrupts = <118 IRQ_TYPE_LEVEL_HIGH>;
+        #gpio-cells = <2>;
+        gpio-controller;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        clocks = <&rootclk 11>;
+        microchip,gpio-bank = <0>;
+        gpio-ranges = <&pic32_pinctrl 0 0 16>;
+    };