devise tree source file for lcd program with beaglebone black

/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Purpose License Version 2 as
* published by the Free Software Foundation
*
* Original from: github.com/jadonk/validation-scripts/blob/master/test-capemgr/
*
* Modified by abhishek for the example on researchdesignlab.com
* that maps GPIO pins for the example
*/

/dts-v1/;
/plugin/;

/{
       compatible = "ti,beaglebone", "ti,beaglebone-black";
       part-number = "DM-GPIO-Test";
       version = "00A0";

       fragment@0 {
             target = <&am33xx_pinmux>;
           
             __overlay__ {
                  pinctrl_test: DM_GPIO_Test_Pins {
pinctrl-single,pins = <

0x078 0x07 /* P9_12 60 OUTPUT MODE7 - The LED Output */
0x074 0x07 /* P9_13 31 INPUT MODE7 none - The Button Input */
0x040 0x07 /* P9_15 48 */
0x034 0x07 /* P8_11 45 INPUT MODE7 (37)pullup - Yellow Wire */
0x030 0x07 /* P8_12 44 INPUT MODE7 (27)pulldown - Green Wire */
0x028 0x07 /* P8_14 26 INPUT MODE7 (2f)none - White Wire */
                     
                               /* OUTPUT GPIO(mode7) 0x07 pulldown, 0x17 pullup, 0x?f no pullup/down */
/* INPUT GPIO(mode7) 0x27 pulldown, 0x37 pullup, 0x?f no pullup/down */

>;
};
             };
       };

       fragment@1 {
target = <&ocp>;
__overlay__ {
test_helper: helper {
compatible = "bone-pinmux-helper";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_test>;
status = "okay";
};
};
};
};