ATOM_CRTC_INVALID
args.v5.ucCRTC = ATOM_CRTC_INVALID;
params.sPCLKInput.ucCRTC = (uint8_t) ATOM_CRTC_INVALID;
*atom_id = ATOM_CRTC_INVALID;
*atom_id = ATOM_CRTC_INVALID;
args.v5.ucCRTC = ATOM_CRTC_INVALID;