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Haojian Zhuangbe0e2d32009-10-08 02:03:57 -04001/*
2 * Regulators driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/err.h>
Haojian Zhuang53dbab72010-01-08 06:01:24 -050014#include <linux/i2c.h>
Haojian Zhuang2e57d562012-09-21 18:06:52 +080015#include <linux/of.h>
16#include <linux/regulator/of_regulator.h>
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040017#include <linux/platform_device.h>
18#include <linux/regulator/driver.h>
19#include <linux/regulator/machine.h>
Haojian Zhuang53dbab72010-01-08 06:01:24 -050020#include <linux/mfd/88pm860x.h>
Paul Gortmaker65602c32011-07-17 16:28:23 -040021#include <linux/module.h>
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040022
23struct pm8607_regulator_info {
24 struct regulator_desc desc;
Haojian Zhuang53dbab72010-01-08 06:01:24 -050025 struct pm860x_chip *chip;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040026 struct regulator_dev *regulator;
Haojian Zhuang53dbab72010-01-08 06:01:24 -050027 struct i2c_client *i2c;
Jett.Zhoue7a78102012-09-17 12:19:06 +080028 struct i2c_client *i2c_8606;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040029
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -040030 unsigned int *vol_table;
31 unsigned int *vol_suspend;
32
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040033 int slope_double;
34};
35
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -040036static const unsigned int BUCK1_table[] = {
37 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
38 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
39 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
40 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
41 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
42 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
43 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
44 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
45};
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040046
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -040047static const unsigned int BUCK1_suspend_table[] = {
48 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
49 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
50 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
51 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
52 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
53 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
54 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
55 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
56};
57
58static const unsigned int BUCK2_table[] = {
59 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
60 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
61 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
62 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
63 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
64 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
65 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
66 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
67};
68
69static const unsigned int BUCK2_suspend_table[] = {
70 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
71 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
72 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
73 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
74 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
75 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
76 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
77 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
78};
79
80static const unsigned int BUCK3_table[] = {
81 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
82 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
83 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
84 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
85 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
86 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
87 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
88 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
89};
90
91static const unsigned int BUCK3_suspend_table[] = {
92 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
93 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
94 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
95 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
96 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
97 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
98 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
99 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
100};
101
102static const unsigned int LDO1_table[] = {
103 1800000, 1200000, 2800000, 0,
104};
105
106static const unsigned int LDO1_suspend_table[] = {
107 1800000, 1200000, 0, 0,
108};
109
110static const unsigned int LDO2_table[] = {
111 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
112};
113
114static const unsigned int LDO2_suspend_table[] = {
115 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
116};
117
118static const unsigned int LDO3_table[] = {
119 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
120};
121
122static const unsigned int LDO3_suspend_table[] = {
123 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
124};
125
126static const unsigned int LDO4_table[] = {
127 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
128};
129
130static const unsigned int LDO4_suspend_table[] = {
131 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
132};
133
134static const unsigned int LDO5_table[] = {
135 2900000, 3000000, 3100000, 3300000,
136};
137
138static const unsigned int LDO5_suspend_table[] = {
139 2900000, 0, 0, 0,
140};
141
142static const unsigned int LDO6_table[] = {
143 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
144};
145
146static const unsigned int LDO6_suspend_table[] = {
147 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
148};
149
150static const unsigned int LDO7_table[] = {
151 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
152};
153
154static const unsigned int LDO7_suspend_table[] = {
155 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
156};
157
158static const unsigned int LDO8_table[] = {
159 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
160};
161
162static const unsigned int LDO8_suspend_table[] = {
163 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
164};
165
166static const unsigned int LDO9_table[] = {
167 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
168};
169
170static const unsigned int LDO9_suspend_table[] = {
171 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
172};
173
174static const unsigned int LDO10_table[] = {
175 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
176 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
177};
178
179static const unsigned int LDO10_suspend_table[] = {
180 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
181 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
182};
183
184static const unsigned int LDO12_table[] = {
185 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
186 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
187};
188
189static const unsigned int LDO12_suspend_table[] = {
190 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
191 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
192};
193
194static const unsigned int LDO13_table[] = {
Jett.Zhou33806432012-02-23 19:52:08 +0800195 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400196};
197
198static const unsigned int LDO13_suspend_table[] = {
199 0,
200};
201
202static const unsigned int LDO14_table[] = {
203 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
204};
205
206static const unsigned int LDO14_suspend_table[] = {
207 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
208};
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400209
210static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
211{
212 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400213 int ret = -EINVAL;
214
Axel Lin53b69492012-03-28 14:59:23 +0800215 if (info->vol_table && (index < rdev->desc->n_voltages)) {
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400216 ret = info->vol_table[index];
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400217 if (info->slope_double)
218 ret <<= 1;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400219 }
220 return ret;
221}
222
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400223static struct regulator_ops pm8607_regulator_ops = {
Axel Lind3d7bcc2012-03-28 14:58:29 +0800224 .list_voltage = pm8607_list_voltage,
Axel Linc6f0a0e2012-12-24 09:14:38 +0800225 .set_voltage_sel = regulator_set_voltage_sel_regmap,
Axel Linc006b212012-04-24 09:52:32 +0800226 .get_voltage_sel = regulator_get_voltage_sel_regmap,
Axel Linef26e0d2012-04-17 11:32:57 +0800227 .enable = regulator_enable_regmap,
228 .disable = regulator_disable_regmap,
229 .is_enabled = regulator_is_enabled_regmap,
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400230};
231
Jett.Zhoue7a78102012-09-17 12:19:06 +0800232static struct regulator_ops pm8606_preg_ops = {
Axel Lin318c6582013-03-05 14:16:58 +0800233 .enable = regulator_enable_regmap,
234 .disable = regulator_disable_regmap,
235 .is_enabled = regulator_is_enabled_regmap,
Jett.Zhoue7a78102012-09-17 12:19:06 +0800236};
237
238#define PM8606_PREG(ereg, ebit) \
239{ \
240 .desc = { \
241 .name = "PREG", \
242 .ops = &pm8606_preg_ops, \
243 .type = REGULATOR_CURRENT, \
244 .id = PM8606_ID_PREG, \
245 .owner = THIS_MODULE, \
246 .enable_reg = PM8606_##ereg, \
247 .enable_mask = (ebit), \
Axel Lin318c6582013-03-05 14:16:58 +0800248 .enable_is_inverted = true, \
Jett.Zhoue7a78102012-09-17 12:19:06 +0800249 }, \
250}
251
Axel Lin53b69492012-03-28 14:59:23 +0800252#define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400253{ \
254 .desc = { \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400255 .name = #vreg, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400256 .ops = &pm8607_regulator_ops, \
257 .type = REGULATOR_VOLTAGE, \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400258 .id = PM8607_ID_##vreg, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400259 .owner = THIS_MODULE, \
Axel Lin53b69492012-03-28 14:59:23 +0800260 .n_voltages = ARRAY_SIZE(vreg##_table), \
Axel Linc006b212012-04-24 09:52:32 +0800261 .vsel_reg = PM8607_##vreg, \
262 .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \
Axel Linc6f0a0e2012-12-24 09:14:38 +0800263 .apply_reg = PM8607_##ureg, \
264 .apply_bit = (ubit), \
Axel Linef26e0d2012-04-17 11:32:57 +0800265 .enable_reg = PM8607_##ereg, \
266 .enable_mask = 1 << (ebit), \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400267 }, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400268 .slope_double = (0), \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400269 .vol_table = (unsigned int *)&vreg##_table, \
270 .vol_suspend = (unsigned int *)&vreg##_suspend_table, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400271}
272
Axel Lin53b69492012-03-28 14:59:23 +0800273#define PM8607_LDO(_id, vreg, shift, ereg, ebit) \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400274{ \
275 .desc = { \
276 .name = "LDO" #_id, \
277 .ops = &pm8607_regulator_ops, \
278 .type = REGULATOR_VOLTAGE, \
279 .id = PM8607_ID_LDO##_id, \
280 .owner = THIS_MODULE, \
Axel Lin53b69492012-03-28 14:59:23 +0800281 .n_voltages = ARRAY_SIZE(LDO##_id##_table), \
Axel Linc006b212012-04-24 09:52:32 +0800282 .vsel_reg = PM8607_##vreg, \
283 .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
Axel Linef26e0d2012-04-17 11:32:57 +0800284 .enable_reg = PM8607_##ereg, \
285 .enable_mask = 1 << (ebit), \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400286 }, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400287 .slope_double = (0), \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400288 .vol_table = (unsigned int *)&LDO##_id##_table, \
289 .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400290}
291
292static struct pm8607_regulator_info pm8607_regulator_info[] = {
Axel Linc6f0a0e2012-12-24 09:14:38 +0800293 PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0),
294 PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1),
295 PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2),
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400296
Axel Lin53b69492012-03-28 14:59:23 +0800297 PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),
298 PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),
299 PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),
300 PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),
301 PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),
302 PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),
303 PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),
304 PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),
305 PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),
306 PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),
307 PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
308 PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
309 PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800310};
Jett.Zhoue7a78102012-09-17 12:19:06 +0800311
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800312static struct pm8607_regulator_info pm8606_regulator_info[] = {
Jett.Zhoue7a78102012-09-17 12:19:06 +0800313 PM8606_PREG(PREREGULATORB, 5),
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400314};
315
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800316#ifdef CONFIG_OF
317static int pm8607_regulator_dt_init(struct platform_device *pdev,
318 struct pm8607_regulator_info *info,
319 struct regulator_config *config)
320{
321 struct device_node *nproot, *np;
Axel Linc92f5dd2013-01-27 21:16:56 +0800322 nproot = of_node_get(pdev->dev.parent->of_node);
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800323 if (!nproot)
324 return -ENODEV;
325 nproot = of_find_node_by_name(nproot, "regulators");
326 if (!nproot) {
327 dev_err(&pdev->dev, "failed to find regulators node\n");
328 return -ENODEV;
329 }
330 for_each_child_of_node(nproot, np) {
331 if (!of_node_cmp(np->name, info->desc.name)) {
332 config->init_data =
333 of_get_regulator_init_data(&pdev->dev, np);
334 config->of_node = np;
335 break;
336 }
337 }
Axel Linc92f5dd2013-01-27 21:16:56 +0800338 of_node_put(nproot);
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800339 return 0;
340}
341#else
342#define pm8607_regulator_dt_init(x, y, z) (-1)
343#endif
344
Bill Pembertona5023572012-11-19 13:22:22 -0500345static int pm8607_regulator_probe(struct platform_device *pdev)
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400346{
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500347 struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400348 struct pm8607_regulator_info *info = NULL;
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800349 struct regulator_init_data *pdata = pdev->dev.platform_data;
Mark Brownc1727082012-04-04 00:50:22 +0100350 struct regulator_config config = { };
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800351 struct resource *res;
Haojian Zhuang22aad002011-03-07 23:43:11 +0800352 int i;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400353
Mark Brown02367022012-08-07 19:42:48 +0100354 res = platform_get_resource(pdev, IORESOURCE_REG, 0);
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800355 if (res) {
356 /* There're resources in 88PM8607 regulator driver */
357 for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
358 info = &pm8607_regulator_info[i];
359 if (info->desc.vsel_reg == res->start)
360 break;
361 }
362 if (i == ARRAY_SIZE(pm8607_regulator_info)) {
363 dev_err(&pdev->dev, "Failed to find regulator %llu\n",
364 (unsigned long long)res->start);
365 return -EINVAL;
366 }
367 } else {
368 /* There's no resource in 88PM8606 PREG regulator driver */
369 info = &pm8606_regulator_info[0];
370 /* i is used to check regulator ID */
371 i = -1;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400372 }
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500373 info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
Jett.Zhoue7a78102012-09-17 12:19:06 +0800374 info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion :
375 chip->client;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400376 info->chip = chip;
377
Haojian Zhuang22aad002011-03-07 23:43:11 +0800378 /* check DVC ramp slope double */
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800379 if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
380 info->slope_double = 1;
Haojian Zhuang22aad002011-03-07 23:43:11 +0800381
Mark Brownc1727082012-04-04 00:50:22 +0100382 config.dev = &pdev->dev;
Mark Brownc1727082012-04-04 00:50:22 +0100383 config.driver_data = info;
384
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800385 if (pm8607_regulator_dt_init(pdev, info, &config))
386 if (pdata)
387 config.init_data = pdata;
388
Axel Linef26e0d2012-04-17 11:32:57 +0800389 if (chip->id == CHIP_PM8607)
390 config.regmap = chip->regmap;
391 else
392 config.regmap = chip->regmap_companion;
393
Mark Brownc1727082012-04-04 00:50:22 +0100394 info->regulator = regulator_register(&info->desc, &config);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400395 if (IS_ERR(info->regulator)) {
396 dev_err(&pdev->dev, "failed to register regulator %s\n",
397 info->desc.name);
398 return PTR_ERR(info->regulator);
399 }
400
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400401 platform_set_drvdata(pdev, info);
402 return 0;
403}
404
Bill Pemberton8dc995f2012-11-19 13:26:10 -0500405static int pm8607_regulator_remove(struct platform_device *pdev)
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400406{
407 struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
408
409 regulator_unregister(info->regulator);
410 return 0;
411}
412
Jett.Zhoue7a78102012-09-17 12:19:06 +0800413static struct platform_device_id pm8607_regulator_driver_ids[] = {
414 {
415 .name = "88pm860x-regulator",
416 .driver_data = 0,
417 }, {
418 .name = "88pm860x-preg",
419 .driver_data = 0,
420 },
421 { },
422};
423MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);
424
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400425static struct platform_driver pm8607_regulator_driver = {
426 .driver = {
427 .name = "88pm860x-regulator",
428 .owner = THIS_MODULE,
429 },
430 .probe = pm8607_regulator_probe,
Bill Pemberton5eb9f2b2012-11-19 13:20:42 -0500431 .remove = pm8607_regulator_remove,
Jett.Zhoue7a78102012-09-17 12:19:06 +0800432 .id_table = pm8607_regulator_driver_ids,
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400433};
434
435static int __init pm8607_regulator_init(void)
436{
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400437 return platform_driver_register(&pm8607_regulator_driver);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400438}
439subsys_initcall(pm8607_regulator_init);
440
441static void __exit pm8607_regulator_exit(void)
442{
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400443 platform_driver_unregister(&pm8607_regulator_driver);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400444}
445module_exit(pm8607_regulator_exit);
446
447MODULE_LICENSE("GPL");
448MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
449MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
450MODULE_ALIAS("platform:88pm8607-regulator");