TODO:
- Dual head support
- 2D acceleration support
- use kernel coding style
- refine the code and remove unused code
- move it to drivers/video/sm7xx/ or make it be drivers/video/sm7xxfb.c

Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
Teddy Wang <teddy.wang@siliconmotion.com.cn>.