VPFE_BLK_COMP_MASK
val = ((bcomp->b & VPFE_BLK_COMP_MASK) |
((bcomp->gb & VPFE_BLK_COMP_MASK) <<
((bcomp->gr & VPFE_BLK_COMP_MASK) <<
((bcomp->r & VPFE_BLK_COMP_MASK) <<