OrangePi_CM5/arch/arm64/boot/dts/rockchip/overlay/rk356x-uart9-m2.dts

/dts-v1/;
/plugin/;

/ {
	fragment@0 {
		target = <&uart9>;

		__overlay__ {
			status = "okay";
			pinctrl-0 = <&uart9m2_xfer>;
		};
	};
};