PIOR
crc_args |= NVDEF(NV907D, HEAD_SET_CRC_CONTROL, PRIMARY_OUTPUT, PIOR(or));
crc_args |= NVDEF(NVC37D, HEAD_SET_CRC_CONTROL, PRIMARY_CRC, PIOR(or));
[PIOR] = "PIOR",
return nvkm_ior_new_(&nv50_pior, disp, PIOR, id, false);
case DCB_OUTPUT_TMDS: *type = PIOR; return TMDS;
case DCB_OUTPUT_DP : *type = PIOR; return TMDS; /* not a bug */