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include/tps6586x.h
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/* * (C) Copyright 2010,2011 * NVIDIA Corporation <www.nvidia.com> * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#ifndef _TPS6586X_H_ |
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#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. * |
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* @param bus I2C bus containing the TPS6586X chip |
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* @return 0 (always succeeds) */ |
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int tps6586x_init(struct udevice *bus); |
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#endif /* _TPS6586X_H_ */ |