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
   5 enum nvbios_volt_type {
   6         NVBIOS_VOLT_GPIO = 0,
   7         NVBIOS_VOLT_PWM,
   8 };
   9
  10 struct 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
  26 u32 nvbios_volt_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
  27 u32 nvbios_volt_parse(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
  28                       struct nvbios_volt *);
  29
  30 struct nvbios_volt_entry {
  31         u32 voltage;
  32         u8  vid;
  33 };
  34
  35 u32 nvbios_volt_entry(struct nvkm_bios *, int idx, u8 *ver, u8 *len);
  36 u32 nvbios_volt_entry_parse(struct nvkm_bios *, int idx, u8 *ver, u8 *len,
  37                             struct nvbios_volt_entry *);
  38 #endif