add_subdirectory(atmel)
add_subdirectory(cmsis)
add_subdirectory_if_kconfig(libmetal)
add_subdirectory(nordic)
add_subdirectory(nxp)
add_subdirectory_if_kconfig(qmsi)
add_subdirectory(st)
add_subdirectory(ti)
add_subdirectory(silabs)
add_subdirectory(esp)
add_subdirectory_ifdef(CONFIG_HAS_ALTERA_HAL altera)