https://forums.developer.nvidia.com/t/r32-3-1-need-device-tree-changes-to-make-bit-0-an-interrupt-on-tca9539-device/146894
R32.3.1 Need device tree changes to make bit 0 an interrupt on tca9539 device - Jetson TX2 - NVIDIA...
Aug 14, 2020 - Help, looked thru all the device tree source and it is missing info for a tca9539