nvif_outp_hda_eld
nvif_outp_hda_eld(&nv_encoder->outp, nv_crtc->index, NULL, 0);
nvif_outp_hda_eld(&nv_encoder->outp, nv_crtc->index, nv_connector->base.eld,
int nvif_outp_hda_eld(struct nvif_outp *, int head, void *data, u32 size);