mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2010,2011
|
||
|
|
* NVIDIA Corporation <www.nvidia.com>
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __H_
|
||
|
|
#define _TPS6586X_H_
|
||
|
|
|
||
|
|
enum {
|
||
|
|
/* SM0-2 PWM/PFM Mode Selection */
|
||
|
|
TPS6586X_PWM_SM0 = 1 << 0,
|
||
|
|
TPS6586X_PWM_SM1 = 1 << 1,
|
||
|
|
TPS6586X_PWM_SM2 = 1 << 2,
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enable PWM mode for selected SM0-2
|
||
|
|
*
|
||
|
|
* @param mask Mask of synchronous converter to enable (TPS6586X_PWM_...)
|
||
|
|
* @return 0 if ok, -1 on error
|
||
|
|
*/
|
||
|
|
int tps6586x_set_pwm_mode(int mask);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adjust SM0 and SM1 voltages to the given targets in incremental steps.
|
||
|
|
*
|
||
|
|
* @param sm0_target Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V
|
||
|
|
* @param sm1_target Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V
|
||
|
|
* @param step Amount to change voltage in each step, in 25mW units
|
||
|
|
* @param rate Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22,
|
||
|
|
* 3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04
|
||
|
|
* @param min_sm0_over_sm1 Minimum amount by which sm0 must exceed sm1.
|
||
|
|
* If this condition is not met, no adjustment will be
|
||
|
|
* done and an error will be reported. Use -1 to skip
|
||
|
|
* this check.
|
||
|
|
* @return 0 if ok, -1 on error
|
||
|
|
*/
|
||
|
|
int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate,
|
||
|
|
int min_sm0_over_sm1);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set up the TPS6586X I2C bus number. This will be used for all operations
|
||
|
|
* on the device. This function must be called before using other functions.
|
||
|
|
*
|
||
|
|
* @param bus I2C bus number containing the TPS6586X chip
|
||
|
|
* @return 0 (always succeeds)
|
||
|
|
*/
|
||
|
|
int tps6586x_init(int bus);
|
||
|
|
|
||
|
|
#endif /* _TPS6586X_H_ */
|