Devicetree examples
As you can see there are 3 .dts files and one dtsi file.
The sun8i-v3s.dtsi defines all of the SoC Interfaces.
The sun8i-blueberrypi.dts shows an example for enabling the framebuffer.
The sun8i-blueberrypi-csi-ov2640.dts shows an example for the OV2640 parallel camera.
The sun8i-blueberrypi-csi-ov7670.dts shows an example for the OV7670 parallel camera.