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(dev: pdev->dev.parent); |
82 | |
83 | config.dev = &pdev->dev; |
84 | config.init_data = dev_get_platdata(dev: &pdev->dev); |
85 | config.driver_data = pcf; |
86 | config.regmap = pcf->regmap; |
87 | |
88 | rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: ®ulators[pdev->id], |
89 | config: &config); |
90 | if (IS_ERR(ptr: rdev)) |
91 | return PTR_ERR(ptr: rdev); |
92 | |
93 | platform_set_drvdata(pdev, data: 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 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
105 | }, |
106 | .probe = pcf50633_regulator_probe, |
107 | }; |
108 | |
109 | static int __init pcf50633_regulator_init(void) |
110 | { |
111 | return platform_driver_register(&pcf50633_regulator_driver); |
112 | } |
113 | subsys_initcall(pcf50633_regulator_init); |
114 | |
115 | static void __exit pcf50633_regulator_exit(void) |
116 | { |
117 | platform_driver_unregister(&pcf50633_regulator_driver); |
118 | } |
119 | module_exit(pcf50633_regulator_exit); |
120 | |
121 | MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>" ); |
122 | MODULE_DESCRIPTION("PCF50633 regulator driver" ); |
123 | MODULE_LICENSE("GPL" ); |
124 | MODULE_ALIAS("platform:pcf50633-regulator" ); |
125 | |