LXR linux/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h

   1/* SPDX-License-Identifier: MIT */
   2#ifndef __NVBIOS_VOLT_H__
   3#define __NVBIOS_VOLT_H__
   4
   5enum nvbios_volt_type {
   6        NVBIOS_VOLT_GPIO = 0,
   7        NVBIOS_VOLT_PWM,
   8};
   9
  10struct nvbios_volt {
  11        enum nvbios_volt_type type;
  12        u32 min;
  13        u32 max;
  14        u32 base;
  15
  16        /* GPIO mode */
  17        bool ranged;
  18        u8   vidmask;
  19        s16  step;
  20
  21        /* PWM mode */
  22        u32 pwm_freq;
  23        u32 pwm_range;
  24};
  25
  26u32 nvbios_volt_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
  27u32 nvbios_volt_parse(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
  28                      struct nvbios_volt *);
  29
  30struct nvbios_volt_entry {
  31        u32 voltage;
  32        u8  vid;
  33};
  34
  35u32 nvbios_volt_entry(struct nvkm_bios *, int idx, u8 *ver, u8 *len);
  36u32 nvbios_volt_entry_parse(struct nvkm_bios *, int idx, u8 *ver, u8 *len,
  37                            struct nvbios_volt_entry *);
  38#endif
  39