# Copyright (c) 2023 Vestas Wind Systems A/S
# SPDX-License-Identifier: Apache-2.0

description: |
  Texas Instruments TCAN4x5x SPI CAN FD controller.

  Example:
    &spi0 {
      tcan4x5x: can@0 {
        compatible = ti,tcan4x5x";
        reg = <0>;
        spi-max-frequency = <18000000>;
        clock-frequency = <40000000>;
        device-state-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
        device-wake-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
        reset-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
        int-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
        bosch,mram-cfg = <0x0 15 15 5 5 0 10 10>;
        sample-point = <875>;
        sample-point-data = <875>;
        bus-speed = <125000>;
        bus-speed-data = <1000000>;
        status = "okay";

        can-transceiver {
          max-bitrate = <8000000>;
        };
      };
    };

compatible: "ti,tcan4x5x"

include: ["bosch,m_can-base.yaml", "spi-device.yaml"]

properties:
  clock-frequency:
    type: int
    enum:
      - 20000000
      - 40000000
    required: true
    description: |
      TCAN4x5x oscillator clock frequency in Hz (20MHz or 40MHz).

  device-state-gpios:
    type: phandle-array
    description: |
      GPIO connected to the TCAN4x5x nWKRQ output. This signal is active low.

  device-wake-gpios:
    type: phandle-array
    description: |
      GPIO connected to the TCAN4x5x WAKE input. This signal is high-voltage, active high.

  reset-gpios:
    type: phandle-array
    description: |
      GPIO connected to the TCAN4x5x RST input. This signal is active high.

  int-gpios:
    type: phandle-array
    required: true
    description: |
      GPIO connected to the TCAN4x5x nINT interrupt output. This signal is open-drain, active low.