summaryrefslogtreecommitdiff
path: root/src/drivers/maxim/max77686/max77686.h
blob: ee53e27a8105445eb4e8bb50ed7cac25e6fa65a2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*
 *  Copyright (C) 2012 Samsung Electronics
 *  Alim Akhtar <alim.akhtar@samsung.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 __MAX77686_H_
#define __MAX77686_H_

enum max77686_regnum {
	PMIC_BUCK1 = 0,
	PMIC_BUCK2,
	PMIC_BUCK3,
	PMIC_BUCK4,
	PMIC_BUCK5,
	PMIC_BUCK6,
	PMIC_BUCK7,
	PMIC_BUCK8,
	PMIC_BUCK9,
	PMIC_LDO1,
	PMIC_LDO2,
	PMIC_LDO3,
	PMIC_LDO4,
	PMIC_LDO5,
	PMIC_LDO6,
	PMIC_LDO7,
	PMIC_LDO8,
	PMIC_LDO9,
	PMIC_LDO10,
	PMIC_LDO11,
	PMIC_LDO12,
	PMIC_LDO13,
	PMIC_LDO14,
	PMIC_LDO15,
	PMIC_LDO16,
	PMIC_LDO17,
	PMIC_LDO18,
	PMIC_LDO19,
	PMIC_LDO20,
	PMIC_LDO21,
	PMIC_LDO22,
	PMIC_LDO23,
	PMIC_LDO24,
	PMIC_LDO25,
	PMIC_LDO26,
	PMIC_EN32KHZ_CP,
};

/**
 * struct max77686_para - max77686 register parameters
 * @param vol_addr	i2c address of the given buck/ldo register
 * @param vol_bitpos	bit position to be set or clear within register
 * @param vol_bitmask	bit mask value
 * @param reg_enaddr	control register address, which enable the given
 *			given buck/ldo.
 * @param reg_enbitpos	bit position to be enabled
 * @param reg_enbiton	value to be written to buck/ldo to make it ON
 * @param reg_enbitoff	value to be written to buck/ldo to make it OFF
 * @param vol_min	minimum voltage level supported by given buck/ldo
 * @param vol_div	voltage division value of given buck/ldo
 */
struct max77686_para {
	u8	vol_addr;
	u8	vol_bitpos;
	u8	vol_bitmask;
	u8	reg_enaddr;
	u8	reg_enbitpos;
	u8	reg_enbitmask;
	u8	reg_enbiton;
	u8	reg_enbitoff;
	u16	vol_min;
	u16	vol_div;
};

/* I2C device address for pmic max77686 */
#define MAX77686_I2C_ADDR (0x12 >> 1)

enum {
	REG_DISABLE = 0,
	REG_ENABLE
};

enum {
	MAX77686_MV = 0,	/* mili volt */
	MAX77686_UV		/* micro volt */
};

/**
 * This function enables the 32KHz coprocessor clock.
 *
 * Return 0 if ok, else -1
 */
int max77686_enable_32khz_cp(void);

/**
 * Set the required voltage level of pmic
 *
 * @param reg		register number of buck/ldo to be set
 * @param volt		voltage level to be set
 * @param enable	enable or disable bit
 * @param volt_units	MAX77686_MV or MAX77686_UV, unit of the
 *			voltage parameters
 *
 * @return		Return 0 if ok, else -1
 */
int max77686_volsetting(enum max77686_regnum reg, unsigned int volt,
			int enable, int volt_units);

/**
 * Disable charging of the RTC backup battery
 *
 * @return		Return 0 if ok, else -1
 */
int max77686_disable_backup_batt(void);

#endif /* __MAX77686_PMIC_H_ */