83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
52 lines
1.5 KiB
C
52 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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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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