Kernel-4.18.0-80.el8_broadcom-bluetooth

Broadcom Bluetooth Chips

This documents the binding structure and common properties for serial
attached Broadcom devices.

Serial attached Broadcom devices shall be a child node of the host UART
device the slave device is attached to.

Required properties:

• compatible: should contain one of the following:
  • “brcm,bcm43438-bt”

Optional properties:

• max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
• shutdown-gpios: GPIO specifier, used to enable the BT module
• device-wakeup-gpios: GPIO specifier, used to wakeup the controller
• host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
• clocks: clock specifier if external clock provided to the controller
• clock-names: should be “extclk”

Example:

&uart2 {
pinctrl-names = “default”;
pinctrl-0 = <&uart2_pins>;

   bluetooth {
           compatible = "brcm,bcm43438-bt";
           max-speed = <921600>;
   };

};