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 enum lp872x_regulator_id {
22 	LP8720_ID_BASE,
23 	LP8720_ID_LDO1 = LP8720_ID_BASE,
24 	LP8720_ID_LDO2,
25 	LP8720_ID_LDO3,
26 	LP8720_ID_LDO4,
27 	LP8720_ID_LDO5,
28 	LP8720_ID_BUCK,
29 
30 	LP8725_ID_BASE,
31 	LP8725_ID_LDO1 = LP8725_ID_BASE,
32 	LP8725_ID_LDO2,
33 	LP8725_ID_LDO3,
34 	LP8725_ID_LDO4,
35 	LP8725_ID_LDO5,
36 	LP8725_ID_LILO1,
37 	LP8725_ID_LILO2,
38 	LP8725_ID_BUCK1,
39 	LP8725_ID_BUCK2,
40 
41 	LP872X_ID_MAX,
42 };
43 
44 enum lp872x_dvs_state {
45 	DVS_LOW  = GPIOF_OUT_INIT_LOW,
46 	DVS_HIGH = GPIOF_OUT_INIT_HIGH,
47 };
48 
49 enum lp872x_dvs_sel {
50 	SEL_V1,
51 	SEL_V2,
52 };
53 
54 /**
55  * lp872x_dvs
56  * @gpio       : gpio pin number for dvs control
57  * @vsel       : dvs selector for buck v1 or buck v2 register
58  * @init_state : initial dvs pin state
59  */
60 struct lp872x_dvs {
61 	int gpio;
62 	enum lp872x_dvs_sel vsel;
63 	enum lp872x_dvs_state init_state;
64 };
65 
66 /**
67  * lp872x_regdata
68  * @id        : regulator id
69  * @init_data : init data for each regulator
70  */
71 struct lp872x_regulator_data {
72 	enum lp872x_regulator_id id;
73 	struct regulator_init_data *init_data;
74 };
75 
76 /**
77  * lp872x_platform_data
78  * @general_config    : the value of LP872X_GENERAL_CFG register
79  * @update_config     : if LP872X_GENERAL_CFG register is updated, set true
80  * @regulator_data    : platform regulator id and init data
81  * @dvs               : dvs data for buck voltage control
82  */
83 struct lp872x_platform_data {
84 	u8 general_config;
85 	bool update_config;
86 	struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS];
87 	struct lp872x_dvs *dvs;
88 };
89 
90 #endif
91