nvkm_intr_add
int nvkm_intr_add(const struct nvkm_intr_func *, const struct nvkm_intr_data *,
ret = nvkm_intr_add(mc->func->intr, mc->func->intrs, &mc->subdev,
ret = nvkm_intr_add(vfn->func->intr, vfn->func->intrs,