kernel_samsung_a53x/drivers/misc/tui
..
platforms
iwd_agent.c
iwd_agent.h
Kconfig
main.c
Makefile
README
stui_core.c
stui_core.h
stui_hal.h
stui_inf.c
stui_inf.h
stui_ioctl.h
tuill_defs.h

1. Location
move file in include/linux to linux/include/linux
move all the rest to linux/drivers/misc/tui

2. Add TUI driver to linux kernel build like below
linux/drivers/misc/Kconfig
+source "drivers/misc/tui/Kconfig"

linux/drivers/misc/Makefile
+obj-$(CONFIG_SAMSUNG_TUI)	+= tui/