1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Regulator driver for TI TPS65912x PMICs |
4 | * |
5 | * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ |
6 | * Andrew F. Davis <afd@ti.com> |
7 | * |
8 | * Based on the TPS65218 driver and the previous TPS65912 driver by |
9 | * Margarita Olaya Cabrera <magi@slimlogic.co.uk> |
10 | */ |
11 | |
12 | #include <linux/module.h> |
13 | #include <linux/mod_devicetable.h> |
14 | #include <linux/platform_device.h> |
15 | #include <linux/regulator/driver.h> |
16 | |
17 | #include <linux/mfd/tps65912.h> |
18 | |
19 | enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3, |
20 | LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 }; |
21 | |
22 | #define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \ |
23 | [_id] = { \ |
24 | .name = _name, \ |
25 | .of_match = _of_match, \ |
26 | .regulators_node = "regulators", \ |
27 | .id = _id, \ |
28 | .ops = &_ops, \ |
29 | .n_voltages = 64, \ |
30 | .type = REGULATOR_VOLTAGE, \ |
31 | .owner = THIS_MODULE, \ |
32 | .vsel_reg = _vr, \ |
33 | .vsel_mask = 0x3f, \ |
34 | .enable_reg = _er, \ |
35 | .enable_mask = BIT(7), \ |
36 | .volt_table = NULL, \ |
37 | .linear_ranges = _lr, \ |
38 | .n_linear_ranges = ARRAY_SIZE(_lr), \ |
39 | } |
40 | |
41 | static const struct linear_range tps65912_dcdc_ranges[] = { |
42 | REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000), |
43 | }; |
44 | |
45 | static const struct linear_range tps65912_ldo_ranges[] = { |
46 | REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000), |
47 | REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000), |
48 | REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000), |
49 | }; |
50 | |
51 | /* Operations permitted on DCDCx */ |
52 | static const struct regulator_ops tps65912_ops_dcdc = { |
53 | .is_enabled = regulator_is_enabled_regmap, |
54 | .enable = regulator_enable_regmap, |
55 | .disable = regulator_disable_regmap, |
56 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
57 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
58 | .list_voltage = regulator_list_voltage_linear_range, |
59 | }; |
60 | |
61 | /* Operations permitted on LDOx */ |
62 | static const struct regulator_ops tps65912_ops_ldo = { |
63 | .is_enabled = regulator_is_enabled_regmap, |
64 | .enable = regulator_enable_regmap, |
65 | .disable = regulator_disable_regmap, |
66 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
67 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
68 | .list_voltage = regulator_list_voltage_linear_range, |
69 | .map_voltage = regulator_map_voltage_linear_range, |
70 | }; |
71 | |
72 | static const struct regulator_desc regulators[] = { |
73 | TPS65912_REGULATOR("DCDC1" , DCDC1, "dcdc1" , tps65912_ops_dcdc, |
74 | TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL, |
75 | tps65912_dcdc_ranges), |
76 | TPS65912_REGULATOR("DCDC2" , DCDC2, "dcdc2" , tps65912_ops_dcdc, |
77 | TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL, |
78 | tps65912_dcdc_ranges), |
79 | TPS65912_REGULATOR("DCDC3" , DCDC3, "dcdc3" , tps65912_ops_dcdc, |
80 | TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL, |
81 | tps65912_dcdc_ranges), |
82 | TPS65912_REGULATOR("DCDC4" , DCDC4, "dcdc4" , tps65912_ops_dcdc, |
83 | TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL, |
84 | tps65912_dcdc_ranges), |
85 | TPS65912_REGULATOR("LDO1" , LDO1, "ldo1" , tps65912_ops_ldo, |
86 | TPS65912_LDO1_OP, TPS65912_LDO1_AVS, |
87 | tps65912_ldo_ranges), |
88 | TPS65912_REGULATOR("LDO2" , LDO2, "ldo2" , tps65912_ops_ldo, |
89 | TPS65912_LDO2_OP, TPS65912_LDO2_AVS, |
90 | tps65912_ldo_ranges), |
91 | TPS65912_REGULATOR("LDO3" , LDO3, "ldo3" , tps65912_ops_ldo, |
92 | TPS65912_LDO3_OP, TPS65912_LDO3_AVS, |
93 | tps65912_ldo_ranges), |
94 | TPS65912_REGULATOR("LDO4" , LDO4, "ldo4" , tps65912_ops_ldo, |
95 | TPS65912_LDO4_OP, TPS65912_LDO4_AVS, |
96 | tps65912_ldo_ranges), |
97 | TPS65912_REGULATOR("LDO5" , LDO5, "ldo5" , tps65912_ops_ldo, |
98 | TPS65912_LDO5, TPS65912_LDO5, |
99 | tps65912_ldo_ranges), |
100 | TPS65912_REGULATOR("LDO6" , LDO6, "ldo6" , tps65912_ops_ldo, |
101 | TPS65912_LDO6, TPS65912_LDO6, |
102 | tps65912_ldo_ranges), |
103 | TPS65912_REGULATOR("LDO7" , LDO7, "ldo7" , tps65912_ops_ldo, |
104 | TPS65912_LDO7, TPS65912_LDO7, |
105 | tps65912_ldo_ranges), |
106 | TPS65912_REGULATOR("LDO8" , LDO8, "ldo8" , tps65912_ops_ldo, |
107 | TPS65912_LDO8, TPS65912_LDO8, |
108 | tps65912_ldo_ranges), |
109 | TPS65912_REGULATOR("LDO9" , LDO9, "ldo9" , tps65912_ops_ldo, |
110 | TPS65912_LDO9, TPS65912_LDO9, |
111 | tps65912_ldo_ranges), |
112 | TPS65912_REGULATOR("LDO10" , LDO10, "ldo10" , tps65912_ops_ldo, |
113 | TPS65912_LDO10, TPS65912_LDO10, |
114 | tps65912_ldo_ranges), |
115 | }; |
116 | |
117 | static int tps65912_regulator_probe(struct platform_device *pdev) |
118 | { |
119 | struct tps65912 *tps = dev_get_drvdata(dev: pdev->dev.parent); |
120 | struct regulator_config config = { }; |
121 | struct regulator_dev *rdev; |
122 | int i; |
123 | |
124 | platform_set_drvdata(pdev, data: tps); |
125 | |
126 | config.dev = &pdev->dev; |
127 | config.driver_data = tps; |
128 | config.dev->of_node = tps->dev->of_node; |
129 | config.regmap = tps->regmap; |
130 | |
131 | for (i = 0; i < ARRAY_SIZE(regulators); i++) { |
132 | rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: ®ulators[i], |
133 | config: &config); |
134 | if (IS_ERR(ptr: rdev)) { |
135 | dev_err(tps->dev, "failed to register %s regulator\n" , |
136 | pdev->name); |
137 | return PTR_ERR(ptr: rdev); |
138 | } |
139 | } |
140 | |
141 | return 0; |
142 | } |
143 | |
144 | static const struct platform_device_id tps65912_regulator_id_table[] = { |
145 | { "tps65912-regulator" , }, |
146 | { /* sentinel */ } |
147 | }; |
148 | MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table); |
149 | |
150 | static struct platform_driver tps65912_regulator_driver = { |
151 | .driver = { |
152 | .name = "tps65912-regulator" , |
153 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
154 | }, |
155 | .probe = tps65912_regulator_probe, |
156 | .id_table = tps65912_regulator_id_table, |
157 | }; |
158 | module_platform_driver(tps65912_regulator_driver); |
159 | |
160 | MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>" ); |
161 | MODULE_DESCRIPTION("TPS65912 voltage regulator driver" ); |
162 | MODULE_LICENSE("GPL v2" ); |
163 | |