Merge branches 'pm-opp', 'pm-misc', 'pm-avs' and 'pm-tools'
[linux-2.6-microblaze.git] / drivers / regulator / tps65912-regulator.c
1 /*
2  * Regulator driver for TI TPS65912x PMICs
3  *
4  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
5  *      Andrew F. Davis <afd@ti.com>
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  *
11  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
12  * kind, whether expressed or implied; without even the implied warranty
13  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License version 2 for more details.
15  *
16  * Based on the TPS65218 driver and the previous TPS65912 driver by
17  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
18  */
19
20 #include <linux/module.h>
21 #include <linux/mod_devicetable.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/driver.h>
24
25 #include <linux/mfd/tps65912.h>
26
27 enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
28         LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
29
30 #define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr)  \
31         [_id] = {                                                       \
32                 .name                   = _name,                        \
33                 .of_match               = _of_match,                    \
34                 .regulators_node        = "regulators",                 \
35                 .id                     = _id,                          \
36                 .ops                    = &_ops,                        \
37                 .n_voltages             = 64,                           \
38                 .type                   = REGULATOR_VOLTAGE,            \
39                 .owner                  = THIS_MODULE,                  \
40                 .vsel_reg               = _vr,                          \
41                 .vsel_mask              = 0x3f,                         \
42                 .enable_reg             = _er,                          \
43                 .enable_mask            = BIT(7),                       \
44                 .volt_table             = NULL,                         \
45                 .linear_ranges          = _lr,                          \
46                 .n_linear_ranges        = ARRAY_SIZE(_lr),              \
47         }
48
49 static const struct regulator_linear_range tps65912_dcdc_ranges[] = {
50         REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
51 };
52
53 static const struct regulator_linear_range tps65912_ldo_ranges[] = {
54         REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
55         REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
56         REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
57 };
58
59 /* Operations permitted on DCDCx */
60 static struct regulator_ops tps65912_ops_dcdc = {
61         .is_enabled             = regulator_is_enabled_regmap,
62         .enable                 = regulator_enable_regmap,
63         .disable                = regulator_disable_regmap,
64         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
65         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
66         .list_voltage           = regulator_list_voltage_linear_range,
67 };
68
69 /* Operations permitted on LDOx */
70 static struct regulator_ops tps65912_ops_ldo = {
71         .is_enabled             = regulator_is_enabled_regmap,
72         .enable                 = regulator_enable_regmap,
73         .disable                = regulator_disable_regmap,
74         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
75         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
76         .list_voltage           = regulator_list_voltage_linear_range,
77         .map_voltage            = regulator_map_voltage_linear_range,
78 };
79
80 static const struct regulator_desc regulators[] = {
81         TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
82                            TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
83                            tps65912_dcdc_ranges),
84         TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
85                            TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
86                            tps65912_dcdc_ranges),
87         TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
88                            TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
89                            tps65912_dcdc_ranges),
90         TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
91                            TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
92                            tps65912_dcdc_ranges),
93         TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
94                            TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
95                            tps65912_ldo_ranges),
96         TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
97                            TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
98                            tps65912_ldo_ranges),
99         TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
100                            TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
101                            tps65912_ldo_ranges),
102         TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
103                            TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
104                            tps65912_ldo_ranges),
105         TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
106                            TPS65912_LDO5, TPS65912_LDO5,
107                            tps65912_ldo_ranges),
108         TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
109                            TPS65912_LDO6, TPS65912_LDO6,
110                            tps65912_ldo_ranges),
111         TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
112                            TPS65912_LDO7, TPS65912_LDO7,
113                            tps65912_ldo_ranges),
114         TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
115                            TPS65912_LDO8, TPS65912_LDO8,
116                            tps65912_ldo_ranges),
117         TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
118                            TPS65912_LDO9, TPS65912_LDO9,
119                            tps65912_ldo_ranges),
120         TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
121                            TPS65912_LDO10, TPS65912_LDO10,
122                            tps65912_ldo_ranges),
123 };
124
125 static int tps65912_regulator_probe(struct platform_device *pdev)
126 {
127         struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
128         struct regulator_config config = { };
129         struct regulator_dev *rdev;
130         int i;
131
132         platform_set_drvdata(pdev, tps);
133
134         config.dev = &pdev->dev;
135         config.driver_data = tps;
136         config.dev->of_node = tps->dev->of_node;
137         config.regmap = tps->regmap;
138
139         for (i = 0; i < ARRAY_SIZE(regulators); i++) {
140                 rdev = devm_regulator_register(&pdev->dev, &regulators[i],
141                                                &config);
142                 if (IS_ERR(rdev)) {
143                         dev_err(tps->dev, "failed to register %s regulator\n",
144                                 pdev->name);
145                         return PTR_ERR(rdev);
146                 }
147         }
148
149         return 0;
150 }
151
152 static const struct platform_device_id tps65912_regulator_id_table[] = {
153         { "tps65912-regulator", },
154         { /* sentinel */ }
155 };
156 MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
157
158 static struct platform_driver tps65912_regulator_driver = {
159         .driver = {
160                 .name = "tps65912-regulator",
161         },
162         .probe = tps65912_regulator_probe,
163         .id_table = tps65912_regulator_id_table,
164 };
165 module_platform_driver(tps65912_regulator_driver);
166
167 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
168 MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
169 MODULE_LICENSE("GPL v2");