tegra_xusb_find_port
port = tegra_xusb_find_port(padctl, "usb3", index);
port = tegra_xusb_find_port(padctl, "usb2", index);
port = tegra_xusb_find_port(padctl, "usb3", index);
tegra_xusb_find_port(struct tegra_xusb_padctl *padctl, const char *type,