1 /*
2  * Copyright 2012 Texas Instruments
3  *
4  * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  */
11 
12 #ifndef __LP872X_REGULATOR_H__
13 #define __LP872X_REGULATOR_H__
14 
15 #include <linux/regulator/machine.h>
16 #include <linux/platform_device.h>
17 #include <linux/gpio.h>
18 
19 #define LP872X_MAX_REGULATORS		9
20 
21 #define LP8720_ENABLE_DELAY		200
22 #define LP8725_ENABLE_DELAY		30000
23 
24 enum lp872x_regulator_id {
25 	LP8720_ID_BASE,
26 	LP8720_ID_LDO1 = LP8720_ID_BASE,
27 	LP8720_ID_LDO2,
28 	LP8720_ID_LDO3,
29 	LP8720_ID_LDO4,
30 	LP8720_ID_LDO5,
31 	LP8720_ID_BUCK,
32 
33 	LP8725_ID_BASE,
34 	LP8725_ID_LDO1 = LP8725_ID_BASE,
35 	LP8725_ID_LDO2,
36 	LP8725_ID_LDO3,
37 	LP8725_ID_LDO4,
38 	LP8725_ID_LDO5,
39 	LP8725_ID_LILO1,
40 	LP8725_ID_LILO2,
41 	LP8725_ID_BUCK1,
42 	LP8725_ID_BUCK2,
43 
44 	LP872X_ID_MAX,
45 };
46 
47 enum lp872x_dvs_state {
48 	DVS_LOW  = GPIOF_OUT_INIT_LOW,
49 	DVS_HIGH = GPIOF_OUT_INIT_HIGH,
50 };
51 
52 enum lp872x_dvs_sel {
53 	SEL_V1,
54 	SEL_V2,
55 };
56 
57 /**
58  * lp872x_dvs
59  * @gpio       : gpio pin number for dvs control
60  * @vsel       : dvs selector for buck v1 or buck v2 register
61  * @init_state : initial dvs pin state
62  */
63 struct lp872x_dvs {
64 	int gpio;
65 	enum lp872x_dvs_sel vsel;
66 	enum lp872x_dvs_state init_state;
67 };
68 
69 /**
70  * lp872x_regdata
71  * @id        : regulator id
72  * @init_data : init data for each regulator
73  */
74 struct lp872x_regulator_data {
75 	enum lp872x_regulator_id id;
76 	struct regulator_init_data *init_data;
77 };
78 
79 /**
80  * lp872x_platform_data
81  * @general_config    : the value of LP872X_GENERAL_CFG register
82  * @update_config     : if LP872X_GENERAL_CFG register is updated, set true
83  * @regulator_data    : platform regulator id and init data
84  * @dvs               : dvs data for buck voltage control
85  * @enable_gpio       : gpio pin number for enable control
86  */
87 struct lp872x_platform_data {
88 	u8 general_config;
89 	bool update_config;
90 	struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS];
91 	struct lp872x_dvs *dvs;
92 	int enable_gpio;
93 };
94 
95 #endif
96