Raw12 v4l2

How to configure device tree to get raw12 via v4l2 with 2 pictures (with FS/FE), please?
Please check the picture below.

Please make your question more clear.
If you want to enable DOL HDR sensor mode. Have reference to below doc.

https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3276/Tegra%20Linux%20Driver%20Package%20Development%20Guide/camera_sensor_prog.48.1.html#wwpID0E0Q50HA