Kernel-4.18.0-80.el8_btusb

Generic Bluetooth controller over USB (btusb driver)

Required properties:

• compatible : should comply with the format “usbVID,PID” specified in

   Documentation/devicetree/bindings/usb/usb-device.txt
   At the time of writing, the only OF supported devices
   (more may be added later) are:
  
    "usb1286,204e" (Marvell 8997)
  

Also, vendors that use btusb may have device additional properties, e.g:
Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt

Optional properties:

• interrupt-parent: phandle of the parent interrupt controller
• interrupt-names: (see below)
• interrupts : The interrupt specified by the name “wakeup” is the interrupt

   that shall be used for out-of-band wake-on-bt. Driver will
   request this interrupt for wakeup. During system suspend, the
   irq will be enabled so that the bluetooth chip can wakeup host
   platform out of band. During system resume, the irq will be
   disabled to make sure unnecessary interrupt is not received.
  

Example:

Following example uses irq pin number 3 of gpio0 for out of band wake-on-bt:

&usb_host1_ehci {
#address-cells = <1>;
#size-cells = <0>;

mvl_bt1: bt@1 {
compatible = "usb1286,204e";
reg = <1>;
interrupt-parent = <&gpio0>;
interrupt-name = "wakeup";
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
};

};