There seems some documents issue with current version (R32.2.1) Sensor software driver programming guide.
To add camera modules to a device tree
1.Locate or create a tegra-camera-platform device tree node in the kernel source tree at:
Where is the directory where you installed the board support package.
there is no t19x folder at all in kernel source. only t210 folder. And there is no such dtsi file existed.
How I can locate this dtsi file as example if I want to add a new camera?