nvbios_volt_entry
u32 nvbios_volt_entry(struct nvkm_bios *, int idx, u8 *ver, u8 *len);
struct nvbios_volt_entry *);
struct nvbios_volt_entry *info)
u32 volt = nvbios_volt_entry(bios, idx, ver, len);
struct nvbios_volt_entry ivid;