device tree -- that does not work for dallas 2 wire

gistfile1.txt

/dts-v1/;
/plugin/;

/ {
    compatible = "ti,beaglebone", "ti,beaglebone-black";
    part-number = "BB-W1";
    version = "00A0";

    exclusive-use = "P9.15";
     
    fragment@0 {
        target = <&am33xx_pinmux>;
        __overlay__ {
             bb_w1_pins: pinmux_bb_w1_pins {
                 pinctrl-single,pins = <
                     0x040 0x37  /*pin P9_15 input with pullup mode 7  - w1-gpio */
                 >;
             };
        };
    };

    fragment@1 {
        target = <&ocp>;
        __overlay__ {
            onewire@0 {
                status          = "okay";
                compatible      = "w1-gpio";
                pinctrl-names   = "default";
                pinctrl-0       = <&bb_w1_pins>;

                gpios = <&gpio2 16 0>; /*grrr I think this means gpio1_16 (using 1 to 4 instread of 0-3)*/
            };
        };
    };
};