1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /* NXP PCF50633 PMIC Driver
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * (C) 2006-2008 by Openmoko, Inc.
5*4882a593Smuzhiyun * Author: Balaji Rao <balajirrao@openmoko.org>
6*4882a593Smuzhiyun * All rights reserved.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Broken down from monstrous PCF50633 driver mainly by
9*4882a593Smuzhiyun * Harald Welte and Andy Green and Werner Almesberger
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kernel.h>
13*4882a593Smuzhiyun #include <linux/module.h>
14*4882a593Smuzhiyun #include <linux/init.h>
15*4882a593Smuzhiyun #include <linux/device.h>
16*4882a593Smuzhiyun #include <linux/err.h>
17*4882a593Smuzhiyun #include <linux/platform_device.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include <linux/mfd/pcf50633/core.h>
20*4882a593Smuzhiyun #include <linux/mfd/pcf50633/pmic.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
23*4882a593Smuzhiyun { \
24*4882a593Smuzhiyun .name = _name, \
25*4882a593Smuzhiyun .id = PCF50633_REGULATOR_##_id, \
26*4882a593Smuzhiyun .ops = &pcf50633_regulator_ops, \
27*4882a593Smuzhiyun .n_voltages = _n, \
28*4882a593Smuzhiyun .min_uV = _min_uV, \
29*4882a593Smuzhiyun .uV_step = _uV_step, \
30*4882a593Smuzhiyun .linear_min_sel = _min_sel, \
31*4882a593Smuzhiyun .type = REGULATOR_VOLTAGE, \
32*4882a593Smuzhiyun .owner = THIS_MODULE, \
33*4882a593Smuzhiyun .vsel_reg = PCF50633_REG_##_id##OUT, \
34*4882a593Smuzhiyun .vsel_mask = 0xff, \
35*4882a593Smuzhiyun .enable_reg = PCF50633_REG_##_id##OUT + 1, \
36*4882a593Smuzhiyun .enable_mask = PCF50633_REGULATOR_ON, \
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun static const struct regulator_ops pcf50633_regulator_ops = {
40*4882a593Smuzhiyun .set_voltage_sel = regulator_set_voltage_sel_regmap,
41*4882a593Smuzhiyun .get_voltage_sel = regulator_get_voltage_sel_regmap,
42*4882a593Smuzhiyun .list_voltage = regulator_list_voltage_linear,
43*4882a593Smuzhiyun .map_voltage = regulator_map_voltage_linear,
44*4882a593Smuzhiyun .enable = regulator_enable_regmap,
45*4882a593Smuzhiyun .disable = regulator_disable_regmap,
46*4882a593Smuzhiyun .is_enabled = regulator_is_enabled_regmap,
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun static const struct regulator_desc regulators[] = {
50*4882a593Smuzhiyun [PCF50633_REGULATOR_AUTO] =
51*4882a593Smuzhiyun PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
52*4882a593Smuzhiyun [PCF50633_REGULATOR_DOWN1] =
53*4882a593Smuzhiyun PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
54*4882a593Smuzhiyun [PCF50633_REGULATOR_DOWN2] =
55*4882a593Smuzhiyun PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
56*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO1] =
57*4882a593Smuzhiyun PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
58*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO2] =
59*4882a593Smuzhiyun PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
60*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO3] =
61*4882a593Smuzhiyun PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
62*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO4] =
63*4882a593Smuzhiyun PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
64*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO5] =
65*4882a593Smuzhiyun PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
66*4882a593Smuzhiyun [PCF50633_REGULATOR_LDO6] =
67*4882a593Smuzhiyun PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
68*4882a593Smuzhiyun [PCF50633_REGULATOR_HCLDO] =
69*4882a593Smuzhiyun PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
70*4882a593Smuzhiyun [PCF50633_REGULATOR_MEMLDO] =
71*4882a593Smuzhiyun PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
72*4882a593Smuzhiyun };
73*4882a593Smuzhiyun
pcf50633_regulator_probe(struct platform_device * pdev)74*4882a593Smuzhiyun static int pcf50633_regulator_probe(struct platform_device *pdev)
75*4882a593Smuzhiyun {
76*4882a593Smuzhiyun struct regulator_dev *rdev;
77*4882a593Smuzhiyun struct pcf50633 *pcf;
78*4882a593Smuzhiyun struct regulator_config config = { };
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun /* Already set by core driver */
81*4882a593Smuzhiyun pcf = dev_to_pcf50633(pdev->dev.parent);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun config.dev = &pdev->dev;
84*4882a593Smuzhiyun config.init_data = dev_get_platdata(&pdev->dev);
85*4882a593Smuzhiyun config.driver_data = pcf;
86*4882a593Smuzhiyun config.regmap = pcf->regmap;
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun rdev = devm_regulator_register(&pdev->dev, ®ulators[pdev->id],
89*4882a593Smuzhiyun &config);
90*4882a593Smuzhiyun if (IS_ERR(rdev))
91*4882a593Smuzhiyun return PTR_ERR(rdev);
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun platform_set_drvdata(pdev, rdev);
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun if (pcf->pdata->regulator_registered)
96*4882a593Smuzhiyun pcf->pdata->regulator_registered(pcf, pdev->id);
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun return 0;
99*4882a593Smuzhiyun }
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun static struct platform_driver pcf50633_regulator_driver = {
102*4882a593Smuzhiyun .driver = {
103*4882a593Smuzhiyun .name = "pcf50633-regulator",
104*4882a593Smuzhiyun },
105*4882a593Smuzhiyun .probe = pcf50633_regulator_probe,
106*4882a593Smuzhiyun };
107*4882a593Smuzhiyun
pcf50633_regulator_init(void)108*4882a593Smuzhiyun static int __init pcf50633_regulator_init(void)
109*4882a593Smuzhiyun {
110*4882a593Smuzhiyun return platform_driver_register(&pcf50633_regulator_driver);
111*4882a593Smuzhiyun }
112*4882a593Smuzhiyun subsys_initcall(pcf50633_regulator_init);
113*4882a593Smuzhiyun
pcf50633_regulator_exit(void)114*4882a593Smuzhiyun static void __exit pcf50633_regulator_exit(void)
115*4882a593Smuzhiyun {
116*4882a593Smuzhiyun platform_driver_unregister(&pcf50633_regulator_driver);
117*4882a593Smuzhiyun }
118*4882a593Smuzhiyun module_exit(pcf50633_regulator_exit);
119*4882a593Smuzhiyun
120*4882a593Smuzhiyun MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
121*4882a593Smuzhiyun MODULE_DESCRIPTION("PCF50633 regulator driver");
122*4882a593Smuzhiyun MODULE_LICENSE("GPL");
123*4882a593Smuzhiyun MODULE_ALIAS("platform:pcf50633-regulator");
124