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