overlay.dts

/dts-v1/;
/plugin/;

&{/} {
	interrupt-parent = <&intc>;
	#address-cells = <0x02>;
	#size-cells = <0x02>;

	mydev:mydev@8000000 {
		compatible = "mydev";
		reg = <0x00 0x8000000 0x00 0x1000>;
		interrupts = <0x00 0x0f 0x04>;
		phandle = <0x01>;

		devnode1 {
			prop1 = "value1";
			prop2 = <0x01 0x02 0x03>;
		};
	};

	mydev2:mydev@8001000 {
		compatible = "mydev";
		reg = <0x00 0x8001000 0x00 0x1000>;
		interrupts = <0x00 0xff 0x04>;
		phandle = <0x02>;

		devnode1 {
			prop1 = "value1";
			prop2 = <0x01 0x02 0x03>;
		};
	};
};