Source: http://www.engadget.com/2013/07/31/ti-intros-single-chip-dockport-technology/
The DockPort standard is only just getting off the ground with support in AMD's Elite Performance processors. TI could soon make the technology fly, however: its new (if awkwardly named) HD3SS2521 controller handles all the tasks of DockPort on a single chip. The hardware is both simpler and cheaper than past multi-chip designs, and makes it easier for laptops and tablets to deliver DisplayPort video, USB 3.0 and power through a single cable. Whether or not we see more DockPort-equipped mobile gadgets is another matter. While the TI chip is available today, device builders still have to choose DockPort over a more established standard like Intel's Thunderbolt.
Source: Texas Instruments