1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 *  (C) Copyright 2010,2011
4 *  NVIDIA Corporation <www.nvidia.com>
5 */
6
7#ifndef _TPS6586X_H_
8#define _TPS6586X_H_
9
10struct udevice;
11
12enum {
13	/* SM0-2 PWM/PFM Mode Selection */
14	TPS6586X_PWM_SM0	= 1 << 0,
15	TPS6586X_PWM_SM1	= 1 << 1,
16	TPS6586X_PWM_SM2	= 1 << 2,
17};
18
19/**
20 * Enable PWM mode for selected SM0-2
21 *
22 * @param mask	Mask of synchronous converter to enable (TPS6586X_PWM_...)
23 * Return: 0 if ok, -1 on error
24 */
25int tps6586x_set_pwm_mode(int mask);
26
27/**
28 * Adjust SM0 and SM1 voltages to the given targets in incremental steps.
29 *
30 * @param sm0_target	Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V
31 * @param sm1_target	Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V
32 * @param step		Amount to change voltage in each step, in 25mW units
33 * @param rate		Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22,
34 *			3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04
35 * @param min_sm0_over_sm1	Minimum amount by which sm0 must exceed sm1.
36 *			If this condition is not met, no adjustment will be
37 *			done and an error will be reported. Use -1 to skip
38 *			this check.
39 * Return: 0 if ok, -1 on error
40 */
41int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate,
42			    int min_sm0_over_sm1);
43
44/**
45 * Set up the TPS6586X I2C bus number. This will be used for all operations
46 * on the device. This function must be called before using other functions.
47 *
48 * @param bus	I2C bus containing the TPS6586X chip
49 * Return: 0 (always succeeds)
50 */
51int tps6586x_init(struct udevice *bus);
52
53#endif	/* _TPS6586X_H_ */
54