根据芯片手册，DISPC_CONTROL寄存器中9:8 TFTDATALINES制定DSS的数据线数目，
0x0: 12-bit output aligned on the LSB of the pixel data
interface
0x1: 16-bit output aligned on the LSB of the pixel data
interface
0x2: 18-bit output aligned on the LSB of the pixel data
interface
0x3: 24-bit output aligned on the LSB of the pixel data
interface
DISPC_GFX_ATTRIBUTES寄存器4:1 GFXFORMAT指定输出格式
0x0: BITMAP 1 (CLUT)
0x1: BITMAP 2 (CLUT)
0x2: BITMAP 4 (CLUT)
0x3: BITMAP 8 (CLUT)
0x4: RGB 12 (un-packed in 16-bit container)
0x5: ARGB16
0x6: RGB 16
0x8: RGB 24 (un-packed in 32-bit container)
0x9: RGB 24 (packed in 24-bit container)
0xC: ARGB32
0xD: RGBA32
0xE: RGBx 32 (24-bit RGB aligned on MSB of the 32-bit
container)
如果omap3evm开发版一样，并口方式，输出RGB666，配置TFTDATALINES=0x02，GFXFORMAT=0x08吗？
如果是输出RGB888，是不是就配置TFTDATALINES=0x03，GFXFORMAT=0x08就可以了呢？
是这样吗？
