Modify DTS file for RS485 in Pocketbeagle

Hello,
I am using pocket beagle with debian 10.3th version in which want to interface RS485 and i dont want to take care of enable pin manually and there is no dtbo file there like BBB have. So, i modified the “BB-UART4-RS485-00A0.dts” file for uart4 pocket beagle and taken P2-17 as enable pin but i am not getting the results as expected help me with this.

here i attached the
BB-UART4-RS485-00A0.dts (1.4 KB)
& the file i created which is
PB-UART4-RS485-00A0.dts (1.6 KB)