1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright 2012 Texas Instruments
4  *
5  * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
6  */
7 
8 #ifndef __LP872X_REGULATOR_H__
9 #define __LP872X_REGULATOR_H__
10 
11 #include <linux/regulator/machine.h>
12 #include <linux/platform_device.h>
13 #include <linux/gpio.h>
14 
15 #define LP872X_MAX_REGULATORS		9
16 
17 #define LP8720_ENABLE_DELAY		200
18 #define LP8725_ENABLE_DELAY		30000
19 
20 enum lp872x_regulator_id {
21 	LP8720_ID_BASE,
22 	LP8720_ID_LDO1 = LP8720_ID_BASE,
23 	LP8720_ID_LDO2,
24 	LP8720_ID_LDO3,
25 	LP8720_ID_LDO4,
26 	LP8720_ID_LDO5,
27 	LP8720_ID_BUCK,
28 
29 	LP8725_ID_BASE,
30 	LP8725_ID_LDO1 = LP8725_ID_BASE,
31 	LP8725_ID_LDO2,
32 	LP8725_ID_LDO3,
33 	LP8725_ID_LDO4,
34 	LP8725_ID_LDO5,
35 	LP8725_ID_LILO1,
36 	LP8725_ID_LILO2,
37 	LP8725_ID_BUCK1,
38 	LP8725_ID_BUCK2,
39 
40 	LP872X_ID_MAX,
41 };
42 
43 enum lp872x_dvs_state {
44 	DVS_LOW  = GPIOF_OUT_INIT_LOW,
45 	DVS_HIGH = GPIOF_OUT_INIT_HIGH,
46 };
47 
48 enum lp872x_dvs_sel {
49 	SEL_V1,
50 	SEL_V2,
51 };
52 
53 /**
54  * lp872x_dvs
55  * @gpio       : gpio pin number for dvs control
56  * @vsel       : dvs selector for buck v1 or buck v2 register
57  * @init_state : initial dvs pin state
58  */
59 struct lp872x_dvs {
60 	int gpio;
61 	enum lp872x_dvs_sel vsel;
62 	enum lp872x_dvs_state init_state;
63 };
64 
65 /**
66  * lp872x_regdata
67  * @id        : regulator id
68  * @init_data : init data for each regulator
69  */
70 struct lp872x_regulator_data {
71 	enum lp872x_regulator_id id;
72 	struct regulator_init_data *init_data;
73 };
74 
75 /**
76  * lp872x_platform_data
77  * @general_config    : the value of LP872X_GENERAL_CFG register
78  * @update_config     : if LP872X_GENERAL_CFG register is updated, set true
79  * @regulator_data    : platform regulator id and init data
80  * @dvs               : dvs data for buck voltage control
81  * @enable_gpio       : gpio pin number for enable 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 	int enable_gpio;
89 };
90 
91 #endif
92