nordic-pinctrl-option-1

nordic-board-pinctrl.dtsi

/* Option 1 */

&pinctrl {
    uart0_default: uart0_default {
        pins1 {
            pinmux = <0 6 UART_TX>, <0 5 UART_RTS>;
            output-enable;
        };
        pins2 {
            pinmux = <0 8 UART_RX>, <0 7 UART_CTS>;
            input-enable;
            bias-pull-up;
        };
    };

    uart0_sleep: uart0_sleep {
        pins1 {
            pinmux = <0 6 UART_TX>, <0 5 UART_RTS>, <0 8 UART_RX>,
                     <0 7 UART_CTS>;
            low-power-enable;
        };
    };
};

nordic-board.dts

/* Option 1 */

#include "nordic-board-pinctrl.dtsi"

&uart0 {
	pinctrl-0 = <&uart0_default>;
	pinctrl-1 = <&uart0_sleep>;
	pinctrl-names = "default", "sleep";
};