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185f812c41
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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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*/
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#ifndef _TPS6586X_H_
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#define _TPS6586X_H_
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struct udevice;
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enum {
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/* SM0-2 PWM/PFM Mode Selection */
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TPS6586X_PWM_SM0 = 1 << 0,
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TPS6586X_PWM_SM1 = 1 << 1,
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TPS6586X_PWM_SM2 = 1 << 2,
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};
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/**
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* Enable PWM mode for selected SM0-2
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*
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* @param mask Mask of synchronous converter to enable (TPS6586X_PWM_...)
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* Return: 0 if ok, -1 on error
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*/
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int tps6586x_set_pwm_mode(int mask);
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/**
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* Adjust SM0 and SM1 voltages to the given targets in incremental steps.
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*
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* @param sm0_target Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V
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* @param sm1_target Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V
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* @param step Amount to change voltage in each step, in 25mW units
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* @param rate Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22,
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* 3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04
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* @param min_sm0_over_sm1 Minimum amount by which sm0 must exceed sm1.
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* If this condition is not met, no adjustment will be
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* done and an error will be reported. Use -1 to skip
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* this check.
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* Return: 0 if ok, -1 on error
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*/
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int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate,
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int min_sm0_over_sm1);
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/**
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* Set up the TPS6586X I2C bus number. This will be used for all operations
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* on the device. This function must be called before using other functions.
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*
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* @param bus I2C bus containing the TPS6586X chip
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* Return: 0 (always succeeds)
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*/
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int tps6586x_init(struct udevice *bus);
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#endif /* _TPS6586X_H_ */
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