sorry for the long delay. But I’m still facing the same problem, /dev/ttyTHS0-2 won’t appear.
I’m using a custom built kernel, based on the latest linux kernel git sources (4.4-rc8). I’m not able to use the stock nvidia kernel image, as i’m doing some crazy custom stuff :-)
According to my .config, I do have enabled the SERIAL_TEGRA. So actually drivers should be there. So I think this is probably a problem with the device tree, as you already said.
I’m using the .dts file which is compiled during the compilation of the kernel. But as far as I can see, there’s no hsuart inside those files. Maybe the upstream kernel is missing some parts?
Where could i get a ‘full featured’ device tree?
Cheers and thanks