xref: /freebsd/sys/contrib/device-tree/Bindings/net/can/microchip,mcp251xfd.yaml (revision 6be3386466ab79a84b48429ae66244f21526d3df)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/can/microchip,mcp251xfd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title:
  Microchip MCP2517FD and MCP2518FD stand-alone CAN controller device tree
  bindings

maintainers:
  - Marc Kleine-Budde <mkl@pengutronix.de>

properties:
  compatible:
    oneOf:
      - const: microchip,mcp2517fd
        description: for MCP2517FD
      - const: microchip,mcp2518fd
        description: for MCP2518FD
      - const: microchip,mcp251xfd
        description: to autodetect chip variant

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  vdd-supply:
    description: Regulator that powers the CAN controller.

  xceiver-supply:
    description: Regulator that powers the CAN transceiver.

  microchip,rx-int-gpios:
    description:
      GPIO phandle of GPIO connected to to INT1 pin of the MCP251XFD, which
      signals a pending RX interrupt.
    maxItems: 1

  spi-max-frequency:
    description:
      Must be half or less of "clocks" frequency.
    maximum: 20000000

required:
  - compatible
  - reg
  - interrupts
  - clocks

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    spi0 {
        #address-cells = <1>;
        #size-cells = <0>;

        can@0 {
            compatible = "microchip,mcp251xfd";
            reg = <0>;
            clocks = <&can0_osc>;
            pinctrl-names = "default";
            pinctrl-0 = <&can0_pins>;
            spi-max-frequency = <20000000>;
            interrupts-extended = <&gpio 13 IRQ_TYPE_LEVEL_LOW>;
            microchip,rx-int-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
            vdd-supply = <&reg5v0>;
            xceiver-supply = <&reg5v0>;
        };
    };