Kernel-4.18.0-80.el8_maxim,max3421

Maxim Integrated SPI-based USB 2.0 host controller MAX3421E

Required properties:

• compatible: Should be “maxim,max3421”
• spi-max-frequency: maximum frequency for this device must not exceed 26 MHz.
• reg: chip select number to which this device is connected.
• maxim,vbus-en-pin:
  GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus.
  ACTIVE_LEVEL is 0 or 1.
• interrupts: the interrupt line description for the interrupt controller.
  The driver configures MAX3421E for active low level triggered interrupts,
  configure your interrupt line accordingly.

Optional property:

• interrupt-parent: the phandle to the associated interrupt controller.

Example:

usb@0 {
    compatible = "maxim,max3421";
    reg = <0>;
    maxim,vbus-en-pin = <3 1>;
    spi-max-frequency = <26000000>;
    interrupt-parent = <&PIC>;
    interrupts = <42>;
};