CSC_BB
regval[4] = CVAL(csc->m[CSC_BB], 0);
cpr->m[CSC_BB] = dispc_S31_32_to_s2_8(ctm->matrix[8]);
regval[0] = CVAL(csc->m[CSC_BB], csc->m[CSC_BG], csc->m[CSC_BR]);
cpr->m[CSC_BB] = dispc_S31_32_to_s3_8(ctm->matrix[8]);