The INT1_MAP and INT2_MAP register are the same function. Why does ADXL372 need two interrupt pin? What is difference between INT1 and INT2?
Currently, the driver only uses INT1.
The reason why the chip has two interrupt pins is because there are several interrupts that can be mapped. For instance, you might be able to configure INT1 to trigger the FIFO_FULL interrupt and INT2 to trigger the AWAKE_INT.