NVKM_OUTP_USER
nvkm_outp_release_or(outp, NVKM_OUTP_USER);
int ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, hda);
OUTP_TRACE(outp, "inherit %02x |= %02x %p", outp->acquired, NVKM_OUTP_USER, ior);
nvkm_outp_acquire_ior(outp, NVKM_OUTP_USER, ior);
nvkm_outp_acquire_ior(outp, NVKM_OUTP_USER, ior);