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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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2 | /* |
3 | * (C) Copyright 2010,2011 | |
4 | * NVIDIA Corporation <www.nvidia.com> | |
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5 | */ |
6 | ||
7ffdc831 | 7 | #ifndef _TPS6586X_H_ |
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8 | #define _TPS6586X_H_ |
9 | ||
10 | enum { | |
11 | /* SM0-2 PWM/PFM Mode Selection */ | |
12 | TPS6586X_PWM_SM0 = 1 << 0, | |
13 | TPS6586X_PWM_SM1 = 1 << 1, | |
14 | TPS6586X_PWM_SM2 = 1 << 2, | |
15 | }; | |
16 | ||
17 | /** | |
18 | * Enable PWM mode for selected SM0-2 | |
19 | * | |
20 | * @param mask Mask of synchronous converter to enable (TPS6586X_PWM_...) | |
21 | * @return 0 if ok, -1 on error | |
22 | */ | |
23 | int tps6586x_set_pwm_mode(int mask); | |
24 | ||
25 | /** | |
26 | * Adjust SM0 and SM1 voltages to the given targets in incremental steps. | |
27 | * | |
28 | * @param sm0_target Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V | |
29 | * @param sm1_target Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V | |
30 | * @param step Amount to change voltage in each step, in 25mW units | |
31 | * @param rate Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22, | |
32 | * 3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04 | |
33 | * @param min_sm0_over_sm1 Minimum amount by which sm0 must exceed sm1. | |
34 | * If this condition is not met, no adjustment will be | |
35 | * done and an error will be reported. Use -1 to skip | |
36 | * this check. | |
37 | * @return 0 if ok, -1 on error | |
38 | */ | |
39 | int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, | |
40 | int min_sm0_over_sm1); | |
41 | ||
42 | /** | |
43 | * Set up the TPS6586X I2C bus number. This will be used for all operations | |
44 | * on the device. This function must be called before using other functions. | |
45 | * | |
b0e6ef46 | 46 | * @param bus I2C bus containing the TPS6586X chip |
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47 | * @return 0 (always succeeds) |
48 | */ | |
b0e6ef46 | 49 | int tps6586x_init(struct udevice *bus); |
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50 | |
51 | #endif /* _TPS6586X_H_ */ |