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