12 bit for IMX477 MIPI on Nano/NX?

The Jetson Nano dev kit is good for two 1.5 gbps CSI lanes (so 3 gbps total?).

A UHD (3840x2160 pixels) frame at 12 bits per pixel and 30 fps is 2.98 gbps. This is just under the Nano limit with two lanes and easily within the limit of the NX.

What would it take to get this going as the ridgerun driver is 10 bit only?

I see that the Rasberry PI kernel repo has a lot of stuff (register settings/etc) about 12 bit on the IMX477 and people snap 12 bit stills on the PI platform fairly readily.

You may consult with ridgerun to get those information.