1*1aa7e23eSSimon Glass /* 2*1aa7e23eSSimon Glass * (C) Copyright 2010,2011 3*1aa7e23eSSimon Glass * NVIDIA Corporation <www.nvidia.com> 4*1aa7e23eSSimon Glass * 5*1aa7e23eSSimon Glass * See file CREDITS for list of people who contributed to this 6*1aa7e23eSSimon Glass * project. 7*1aa7e23eSSimon Glass * 8*1aa7e23eSSimon Glass * This program is free software; you can redistribute it and/or 9*1aa7e23eSSimon Glass * modify it under the terms of the GNU General Public License as 10*1aa7e23eSSimon Glass * published by the Free Software Foundation; either version 2 of 11*1aa7e23eSSimon Glass * the License, or (at your option) any later version. 12*1aa7e23eSSimon Glass * 13*1aa7e23eSSimon Glass * This program is distributed in the hope that it will be useful, 14*1aa7e23eSSimon Glass * but WITHOUT ANY WARRANTY; without even the implied warranty of 15*1aa7e23eSSimon Glass * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16*1aa7e23eSSimon Glass * GNU General Public License for more details. 17*1aa7e23eSSimon Glass * 18*1aa7e23eSSimon Glass * You should have received a copy of the GNU General Public License 19*1aa7e23eSSimon Glass * along with this program; if not, write to the Free Software 20*1aa7e23eSSimon Glass * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21*1aa7e23eSSimon Glass * MA 02111-1307 USA 22*1aa7e23eSSimon Glass */ 23*1aa7e23eSSimon Glass 24*1aa7e23eSSimon Glass #ifndef __H_ 25*1aa7e23eSSimon Glass #define _TPS6586X_H_ 26*1aa7e23eSSimon Glass 27*1aa7e23eSSimon Glass enum { 28*1aa7e23eSSimon Glass /* SM0-2 PWM/PFM Mode Selection */ 29*1aa7e23eSSimon Glass TPS6586X_PWM_SM0 = 1 << 0, 30*1aa7e23eSSimon Glass TPS6586X_PWM_SM1 = 1 << 1, 31*1aa7e23eSSimon Glass TPS6586X_PWM_SM2 = 1 << 2, 32*1aa7e23eSSimon Glass }; 33*1aa7e23eSSimon Glass 34*1aa7e23eSSimon Glass /** 35*1aa7e23eSSimon Glass * Enable PWM mode for selected SM0-2 36*1aa7e23eSSimon Glass * 37*1aa7e23eSSimon Glass * @param mask Mask of synchronous converter to enable (TPS6586X_PWM_...) 38*1aa7e23eSSimon Glass * @return 0 if ok, -1 on error 39*1aa7e23eSSimon Glass */ 40*1aa7e23eSSimon Glass int tps6586x_set_pwm_mode(int mask); 41*1aa7e23eSSimon Glass 42*1aa7e23eSSimon Glass /** 43*1aa7e23eSSimon Glass * Adjust SM0 and SM1 voltages to the given targets in incremental steps. 44*1aa7e23eSSimon Glass * 45*1aa7e23eSSimon Glass * @param sm0_target Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V 46*1aa7e23eSSimon Glass * @param sm1_target Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V 47*1aa7e23eSSimon Glass * @param step Amount to change voltage in each step, in 25mW units 48*1aa7e23eSSimon Glass * @param rate Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22, 49*1aa7e23eSSimon Glass * 3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04 50*1aa7e23eSSimon Glass * @param min_sm0_over_sm1 Minimum amount by which sm0 must exceed sm1. 51*1aa7e23eSSimon Glass * If this condition is not met, no adjustment will be 52*1aa7e23eSSimon Glass * done and an error will be reported. Use -1 to skip 53*1aa7e23eSSimon Glass * this check. 54*1aa7e23eSSimon Glass * @return 0 if ok, -1 on error 55*1aa7e23eSSimon Glass */ 56*1aa7e23eSSimon Glass int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, 57*1aa7e23eSSimon Glass int min_sm0_over_sm1); 58*1aa7e23eSSimon Glass 59*1aa7e23eSSimon Glass /** 60*1aa7e23eSSimon Glass * Set up the TPS6586X I2C bus number. This will be used for all operations 61*1aa7e23eSSimon Glass * on the device. This function must be called before using other functions. 62*1aa7e23eSSimon Glass * 63*1aa7e23eSSimon Glass * @param bus I2C bus number containing the TPS6586X chip 64*1aa7e23eSSimon Glass * @return 0 (always succeeds) 65*1aa7e23eSSimon Glass */ 66*1aa7e23eSSimon Glass int tps6586x_init(int bus); 67*1aa7e23eSSimon Glass 68*1aa7e23eSSimon Glass #endif /* _TPS6586X_H_ */ 69