Commit 76619c4f authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Greg Kroah-Hartman
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dt-bindings: serial: Convert microchip,pic32mzda-uart to DT schema 



Convert the Microchip PIC32 UART binding to DT schema. The binding was
unclear there are 3 interrupts. The functions were determined from the
driver. The 'cts-gpios' property is covered by serial.yaml schema.

Signed-off-by: default avatar"Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250507154937.1603190-1-robh@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7282b8ad

Documentation/devicetree/bindings/serial/microchip,pic32-uart.txt

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* Microchip Universal Asynchronous Receiver Transmitter (UART)



Required properties:

- compatible: Should be "microchip,pic32mzda-uart"

- reg: Should contain registers location and length

- interrupts: Should contain interrupt

- clocks: Phandle to the clock.

          See: Documentation/devicetree/bindings/clock/clock-bindings.txt

- pinctrl-names: A pinctrl state names "default" must be defined.

- pinctrl-0: Phandle referencing pin configuration of the UART peripheral.

             See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt



Optional properties:

- cts-gpios: CTS pin for UART



Example:

	uart1: serial@1f822000 {

		compatible = "microchip,pic32mzda-uart";

		reg = <0x1f822000 0x50>;

		interrupts = <112 IRQ_TYPE_LEVEL_HIGH>,

			<113 IRQ_TYPE_LEVEL_HIGH>,

			<114 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&rootclk PB2CLK>;

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_uart1

				&pinctrl_uart1_cts

				&pinctrl_uart1_rts>;

		cts-gpios = <&gpio1 15 0>;

	};

Documentation/devicetree/bindings/serial/microchip,pic32mzda-uart.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/serial/microchip,pic32mzda-uart.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Microchip PIC32 UART



maintainers:

  - Andrei Pistirica <andrei.pistirica@microchip.com>

  - Purna Chandra Mandal <purna.mandal@microchip.com>



allOf:

  - $ref: /schemas/serial/serial.yaml#



properties:

  compatible:

    const: microchip,pic32mzda-uart



  reg:

    maxItems: 1



  interrupts:

    items:

      - description: Fault

      - description: RX

      - description: TX



  clocks:

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - clocks



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    #include <dt-bindings/clock/microchip,pic32-clock.h>



    serial@1f822000 {

        compatible = "microchip,pic32mzda-uart";

        reg = <0x1f822000 0x50>;

        interrupts = <112 IRQ_TYPE_LEVEL_HIGH>,

                    <113 IRQ_TYPE_LEVEL_HIGH>,

                    <114 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&rootclk PB2CLK>;

        cts-gpios = <&gpio1 15 0>;

    };