/* SPDX-License-Identifier: Apache-2.0 */ &pinctrl { uart21_default: uart21_default { group1 { psels = , , , ; }; }; uart21_sleep: uart21_sleep { group1 { psels = , , , ; low-power-enable; }; }; }; dut: &uart21 { status = "okay"; current-speed = <115200>; pinctrl-0 = <&uart21_default>; pinctrl-1 = <&uart21_sleep>; pinctrl-names = "default", "sleep"; hw-flow-control; };