GNU Linux-libre 5.10.219-gnu1
[releases.git] / drivers / regulator / pcf50633-regulator.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* NXP PCF50633 PMIC Driver
3  *
4  * (C) 2006-2008 by Openmoko, Inc.
5  * Author: Balaji Rao <balajirrao@openmoko.org>
6  * All rights reserved.
7  *
8  * Broken down from monstrous PCF50633 driver mainly by
9  * Harald Welte and Andy Green and Werner Almesberger
10  */
11
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/device.h>
16 #include <linux/err.h>
17 #include <linux/platform_device.h>
18
19 #include <linux/mfd/pcf50633/core.h>
20 #include <linux/mfd/pcf50633/pmic.h>
21
22 #define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
23         {                                                       \
24                 .name = _name,                                  \
25                 .id = PCF50633_REGULATOR_##_id,                 \
26                 .ops = &pcf50633_regulator_ops,                 \
27                 .n_voltages = _n,                               \
28                 .min_uV = _min_uV,                              \
29                 .uV_step = _uV_step,                            \
30                 .linear_min_sel = _min_sel,                     \
31                 .type = REGULATOR_VOLTAGE,                      \
32                 .owner = THIS_MODULE,                           \
33                 .vsel_reg = PCF50633_REG_##_id##OUT,            \
34                 .vsel_mask = 0xff,                              \
35                 .enable_reg = PCF50633_REG_##_id##OUT + 1,      \
36                 .enable_mask = PCF50633_REGULATOR_ON,           \
37         }
38
39 static const struct regulator_ops pcf50633_regulator_ops = {
40         .set_voltage_sel = regulator_set_voltage_sel_regmap,
41         .get_voltage_sel = regulator_get_voltage_sel_regmap,
42         .list_voltage = regulator_list_voltage_linear,
43         .map_voltage = regulator_map_voltage_linear,
44         .enable = regulator_enable_regmap,
45         .disable = regulator_disable_regmap,
46         .is_enabled = regulator_is_enabled_regmap,
47 };
48
49 static const struct regulator_desc regulators[] = {
50         [PCF50633_REGULATOR_AUTO] =
51                 PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
52         [PCF50633_REGULATOR_DOWN1] =
53                 PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
54         [PCF50633_REGULATOR_DOWN2] =
55                 PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
56         [PCF50633_REGULATOR_LDO1] =
57                 PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
58         [PCF50633_REGULATOR_LDO2] =
59                 PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
60         [PCF50633_REGULATOR_LDO3] =
61                 PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
62         [PCF50633_REGULATOR_LDO4] =
63                 PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
64         [PCF50633_REGULATOR_LDO5] =
65                 PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
66         [PCF50633_REGULATOR_LDO6] =
67                 PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
68         [PCF50633_REGULATOR_HCLDO] =
69                 PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
70         [PCF50633_REGULATOR_MEMLDO] =
71                 PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
72 };
73
74 static int pcf50633_regulator_probe(struct platform_device *pdev)
75 {
76         struct regulator_dev *rdev;
77         struct pcf50633 *pcf;
78         struct regulator_config config = { };
79
80         /* Already set by core driver */
81         pcf = dev_to_pcf50633(pdev->dev.parent);
82
83         config.dev = &pdev->dev;
84         config.init_data = dev_get_platdata(&pdev->dev);
85         config.driver_data = pcf;
86         config.regmap = pcf->regmap;
87
88         rdev = devm_regulator_register(&pdev->dev, &regulators[pdev->id],
89                                        &config);
90         if (IS_ERR(rdev))
91                 return PTR_ERR(rdev);
92
93         platform_set_drvdata(pdev, rdev);
94
95         if (pcf->pdata->regulator_registered)
96                 pcf->pdata->regulator_registered(pcf, pdev->id);
97
98         return 0;
99 }
100
101 static struct platform_driver pcf50633_regulator_driver = {
102         .driver = {
103                 .name = "pcf50633-regulator",
104         },
105         .probe = pcf50633_regulator_probe,
106 };
107
108 static int __init pcf50633_regulator_init(void)
109 {
110         return platform_driver_register(&pcf50633_regulator_driver);
111 }
112 subsys_initcall(pcf50633_regulator_init);
113
114 static void __exit pcf50633_regulator_exit(void)
115 {
116         platform_driver_unregister(&pcf50633_regulator_driver);
117 }
118 module_exit(pcf50633_regulator_exit);
119
120 MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
121 MODULE_DESCRIPTION("PCF50633 regulator driver");
122 MODULE_LICENSE("GPL");
123 MODULE_ALIAS("platform:pcf50633-regulator");