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