USB_OTG切换模式

cat /sys/devices/platform/soc/usbc0/usb_device

cat /sys/devices/platform/soc/usbc0/usb_host

cat /sys/devices/platform/soc@3000000/soc@3000000:usbc0@0/usb_device

cat /sys/devices/platform/soc@3000000/soc@3000000:usbc0@0/usb_host

&usbc0 {
	device_type = "usbc0";
	usb_port_type = <0x0>;
	usb_detect_type = <0x0>;
	usb_detect_mode = <0x0>;
	usb_id_gpio;
	usb_det_vbus_gpio;
	/* det_vbus_supply = <&usb_power_supply>; */
	usb_regulator_io = "nocare";
	usb_wakeup_suspend = <0>;
	usb_serial_unique = <0>;
	usb_serial_number = "20080411";
	status = "okay";
};