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gerrit-public.fairphone.software / kernel / msm-4.9 / b7e79677ed9299a1932d843b8bd6b0c4db162f59 / . / drivers / regulator / tps65912-regulator.c
blob: a4921a70da556d988024b0d2b187f102e844801b [file] [log] [blame]
Andrew F. Davis33f9d8c2016-01-25 09:43:46 -0600[diff] [blame]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/platform_device.h>
22#include <linux/regulator/driver.h>
23
24#include <linux/mfd/tps65912.h>
25
26enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
27 LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
28
29#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \
30 [_id] = { \
31 .name = _name, \
32 .of_match = _of_match, \
33 .regulators_node = "regulators", \
34 .id = _id, \
35 .ops = &_ops, \
36 .n_voltages = 64, \
37 .type = REGULATOR_VOLTAGE, \
38 .owner = THIS_MODULE, \
39 .vsel_reg = _vr, \
40 .vsel_mask = 0x3f, \
41 .enable_reg = _er, \
42 .enable_mask = BIT(7), \
43 .volt_table = NULL, \
44 .linear_ranges = _lr, \
45 .n_linear_ranges = ARRAY_SIZE(_lr), \
46 }
47
48static const struct regulator_linear_range tps65912_dcdc_ranges[] = {
49 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
50};
51
52static const struct regulator_linear_range tps65912_ldo_ranges[] = {
53 REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
54 REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
55 REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
56};
57
58/* Operations permitted on DCDCx */
59static struct regulator_ops tps65912_ops_dcdc = {
60 .is_enabled = regulator_is_enabled_regmap,
61 .enable = regulator_enable_regmap,
62 .disable = regulator_disable_regmap,
63 .get_voltage_sel = regulator_get_voltage_sel_regmap,
64 .set_voltage_sel = regulator_set_voltage_sel_regmap,
65 .list_voltage = regulator_list_voltage_linear_range,
66};
67
68/* Operations permitted on LDOx */
69static struct regulator_ops tps65912_ops_ldo = {
70 .is_enabled = regulator_is_enabled_regmap,
71 .enable = regulator_enable_regmap,
72 .disable = regulator_disable_regmap,
73 .get_voltage_sel = regulator_get_voltage_sel_regmap,
74 .set_voltage_sel = regulator_set_voltage_sel_regmap,
75 .list_voltage = regulator_list_voltage_linear_range,
76 .map_voltage = regulator_map_voltage_linear_range,
77};
78
79static const struct regulator_desc regulators[] = {
80 TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
81 TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
82 tps65912_dcdc_ranges),
83 TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
84 TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
85 tps65912_dcdc_ranges),
86 TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
87 TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
88 tps65912_dcdc_ranges),
89 TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
90 TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
91 tps65912_dcdc_ranges),
92 TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
93 TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
94 tps65912_ldo_ranges),
95 TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
96 TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
97 tps65912_ldo_ranges),
98 TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
99 TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
100 tps65912_ldo_ranges),
101 TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
102 TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
103 tps65912_ldo_ranges),
104 TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
105 TPS65912_LDO5, TPS65912_LDO5,
106 tps65912_ldo_ranges),
107 TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
108 TPS65912_LDO6, TPS65912_LDO6,
109 tps65912_ldo_ranges),
110 TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
111 TPS65912_LDO7, TPS65912_LDO7,
112 tps65912_ldo_ranges),
113 TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
114 TPS65912_LDO8, TPS65912_LDO8,
115 tps65912_ldo_ranges),
116 TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
117 TPS65912_LDO9, TPS65912_LDO9,
118 tps65912_ldo_ranges),
119 TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
120 TPS65912_LDO10, TPS65912_LDO10,
121 tps65912_ldo_ranges),
122};
123
124static int tps65912_regulator_probe(struct platform_device *pdev)
125{
126 struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
127 struct regulator_config config = { };
128 struct regulator_dev *rdev;
129 int i;
130
131 platform_set_drvdata(pdev, tps);
132
133 config.dev = &pdev->dev;
134 config.driver_data = tps;
135 config.dev->of_node = tps->dev->of_node;
136 config.regmap = tps->regmap;
137
138 for (i = 0; i < ARRAY_SIZE(regulators); i++) {
139 rdev = devm_regulator_register(&pdev->dev, &regulators[i],
140 &config);
141 if (IS_ERR(rdev)) {
142 dev_err(tps->dev, "failed to register %s regulator\n",
143 pdev->name);
144 return PTR_ERR(rdev);
145 }
146 }
147
148 return 0;
149}
150
151static const struct platform_device_id tps65912_regulator_id_table[] = {
152 { "tps65912-regulator", },
153 { /* sentinel */ }
154};
155MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
156
157static struct platform_driver tps65912_regulator_driver = {
158 .driver = {
159 .name = "tps65912-regulator",
160 },
161 .probe = tps65912_regulator_probe,
162 .id_table = tps65912_regulator_id_table,
163};
164module_platform_driver(tps65912_regulator_driver);
165
166MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
167MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
168MODULE_LICENSE("GPL v2");