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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 update_reg;
34 int update_bit;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040035 int slope_double;
36};
37
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -040038static const unsigned int BUCK1_table[] = {
39 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
40 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
41 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
42 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
43 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
44 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
45 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
46 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
47};
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -040048
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -040049static const unsigned int BUCK1_suspend_table[] = {
50 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
51 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
52 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
53 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
54 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
55 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
56 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
57 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
58};
59
60static const unsigned int BUCK2_table[] = {
61 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
62 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
63 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
64 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
65 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
66 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
67 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
68 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
69};
70
71static const unsigned int BUCK2_suspend_table[] = {
72 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
73 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
74 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
75 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
76 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
77 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
78 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
79 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
80};
81
82static const unsigned int BUCK3_table[] = {
83 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
84 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
85 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
86 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
87 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
88 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
89 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
90 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
91};
92
93static const unsigned int BUCK3_suspend_table[] = {
94 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
95 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
96 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
97 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
98 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
99 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
100 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
101 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
102};
103
104static const unsigned int LDO1_table[] = {
105 1800000, 1200000, 2800000, 0,
106};
107
108static const unsigned int LDO1_suspend_table[] = {
109 1800000, 1200000, 0, 0,
110};
111
112static const unsigned int LDO2_table[] = {
113 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
114};
115
116static const unsigned int LDO2_suspend_table[] = {
117 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
118};
119
120static const unsigned int LDO3_table[] = {
121 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
122};
123
124static const unsigned int LDO3_suspend_table[] = {
125 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
126};
127
128static const unsigned int LDO4_table[] = {
129 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
130};
131
132static const unsigned int LDO4_suspend_table[] = {
133 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
134};
135
136static const unsigned int LDO5_table[] = {
137 2900000, 3000000, 3100000, 3300000,
138};
139
140static const unsigned int LDO5_suspend_table[] = {
141 2900000, 0, 0, 0,
142};
143
144static const unsigned int LDO6_table[] = {
145 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
146};
147
148static const unsigned int LDO6_suspend_table[] = {
149 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
150};
151
152static const unsigned int LDO7_table[] = {
153 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
154};
155
156static const unsigned int LDO7_suspend_table[] = {
157 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
158};
159
160static const unsigned int LDO8_table[] = {
161 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
162};
163
164static const unsigned int LDO8_suspend_table[] = {
165 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
166};
167
168static const unsigned int LDO9_table[] = {
169 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
170};
171
172static const unsigned int LDO9_suspend_table[] = {
173 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
174};
175
176static const unsigned int LDO10_table[] = {
177 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
178 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
179};
180
181static const unsigned int LDO10_suspend_table[] = {
182 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
183 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
184};
185
186static const unsigned int LDO12_table[] = {
187 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
188 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
189};
190
191static const unsigned int LDO12_suspend_table[] = {
192 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
193 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
194};
195
196static const unsigned int LDO13_table[] = {
Jett.Zhou33806432012-02-23 19:52:08 +0800197 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400198};
199
200static const unsigned int LDO13_suspend_table[] = {
201 0,
202};
203
204static const unsigned int LDO14_table[] = {
205 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
206};
207
208static const unsigned int LDO14_suspend_table[] = {
209 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
210};
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400211
212static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
213{
214 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400215 int ret = -EINVAL;
216
Axel Lin53b69492012-03-28 14:59:23 +0800217 if (info->vol_table && (index < rdev->desc->n_voltages)) {
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400218 ret = info->vol_table[index];
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400219 if (info->slope_double)
220 ret <<= 1;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400221 }
222 return ret;
223}
224
Axel Lin4ca1e1d2012-03-28 15:00:36 +0800225static int pm8607_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400226{
227 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
Axel Linc006b212012-04-24 09:52:32 +0800228 uint8_t val;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400229 int ret;
230
Axel Linc006b212012-04-24 09:52:32 +0800231 val = (uint8_t)(selector << (ffs(rdev->desc->vsel_mask) - 1));
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400232
Axel Linc006b212012-04-24 09:52:32 +0800233 ret = pm860x_set_bits(info->i2c, rdev->desc->vsel_reg,
234 rdev->desc->vsel_mask, val);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400235 if (ret)
236 return ret;
237 switch (info->desc.id) {
238 case PM8607_ID_BUCK1:
239 case PM8607_ID_BUCK3:
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500240 ret = pm860x_set_bits(info->i2c, info->update_reg,
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400241 1 << info->update_bit,
242 1 << info->update_bit);
243 break;
244 }
245 return ret;
246}
247
Jett.Zhoue7a78102012-09-17 12:19:06 +0800248static int pm8606_preg_enable(struct regulator_dev *rdev)
249{
250 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
251
252 return pm860x_set_bits(info->i2c, rdev->desc->enable_reg,
253 1 << rdev->desc->enable_mask, 0);
254}
255
256static int pm8606_preg_disable(struct regulator_dev *rdev)
257{
258 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
259
260 return pm860x_set_bits(info->i2c, rdev->desc->enable_reg,
261 1 << rdev->desc->enable_mask,
262 1 << rdev->desc->enable_mask);
263}
264
265static int pm8606_preg_is_enabled(struct regulator_dev *rdev)
266{
267 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
268 int ret;
269
270 ret = pm860x_reg_read(info->i2c, rdev->desc->enable_reg);
271 if (ret < 0)
272 return ret;
273
274 return !((unsigned char)ret & (1 << rdev->desc->enable_mask));
275}
276
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400277static struct regulator_ops pm8607_regulator_ops = {
Axel Lind3d7bcc2012-03-28 14:58:29 +0800278 .list_voltage = pm8607_list_voltage,
Axel Lin4ca1e1d2012-03-28 15:00:36 +0800279 .set_voltage_sel = pm8607_set_voltage_sel,
Axel Linc006b212012-04-24 09:52:32 +0800280 .get_voltage_sel = regulator_get_voltage_sel_regmap,
Axel Linef26e0d2012-04-17 11:32:57 +0800281 .enable = regulator_enable_regmap,
282 .disable = regulator_disable_regmap,
283 .is_enabled = regulator_is_enabled_regmap,
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400284};
285
Jett.Zhoue7a78102012-09-17 12:19:06 +0800286static struct regulator_ops pm8606_preg_ops = {
287 .enable = pm8606_preg_enable,
288 .disable = pm8606_preg_disable,
289 .is_enabled = pm8606_preg_is_enabled,
290};
291
292#define PM8606_PREG(ereg, ebit) \
293{ \
294 .desc = { \
295 .name = "PREG", \
296 .ops = &pm8606_preg_ops, \
297 .type = REGULATOR_CURRENT, \
298 .id = PM8606_ID_PREG, \
299 .owner = THIS_MODULE, \
300 .enable_reg = PM8606_##ereg, \
301 .enable_mask = (ebit), \
302 }, \
303}
304
Axel Lin53b69492012-03-28 14:59:23 +0800305#define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400306{ \
307 .desc = { \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400308 .name = #vreg, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400309 .ops = &pm8607_regulator_ops, \
310 .type = REGULATOR_VOLTAGE, \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400311 .id = PM8607_ID_##vreg, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400312 .owner = THIS_MODULE, \
Axel Lin53b69492012-03-28 14:59:23 +0800313 .n_voltages = ARRAY_SIZE(vreg##_table), \
Axel Linc006b212012-04-24 09:52:32 +0800314 .vsel_reg = PM8607_##vreg, \
315 .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \
Axel Linef26e0d2012-04-17 11:32:57 +0800316 .enable_reg = PM8607_##ereg, \
317 .enable_mask = 1 << (ebit), \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400318 }, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400319 .update_reg = PM8607_##ureg, \
320 .update_bit = (ubit), \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400321 .slope_double = (0), \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400322 .vol_table = (unsigned int *)&vreg##_table, \
323 .vol_suspend = (unsigned int *)&vreg##_suspend_table, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400324}
325
Axel Lin53b69492012-03-28 14:59:23 +0800326#define PM8607_LDO(_id, vreg, shift, ereg, ebit) \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400327{ \
328 .desc = { \
329 .name = "LDO" #_id, \
330 .ops = &pm8607_regulator_ops, \
331 .type = REGULATOR_VOLTAGE, \
332 .id = PM8607_ID_LDO##_id, \
333 .owner = THIS_MODULE, \
Axel Lin53b69492012-03-28 14:59:23 +0800334 .n_voltages = ARRAY_SIZE(LDO##_id##_table), \
Axel Linc006b212012-04-24 09:52:32 +0800335 .vsel_reg = PM8607_##vreg, \
336 .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
Axel Linef26e0d2012-04-17 11:32:57 +0800337 .enable_reg = PM8607_##ereg, \
338 .enable_mask = 1 << (ebit), \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400339 }, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400340 .slope_double = (0), \
Haojian Zhuang9f79e9d2010-05-04 09:54:51 -0400341 .vol_table = (unsigned int *)&LDO##_id##_table, \
342 .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400343}
344
345static struct pm8607_regulator_info pm8607_regulator_info[] = {
Axel Lin53b69492012-03-28 14:59:23 +0800346 PM8607_DVC(BUCK1, GO, 0, SUPPLIES_EN11, 0),
347 PM8607_DVC(BUCK2, GO, 1, SUPPLIES_EN11, 1),
348 PM8607_DVC(BUCK3, GO, 2, SUPPLIES_EN11, 2),
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400349
Axel Lin53b69492012-03-28 14:59:23 +0800350 PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),
351 PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),
352 PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),
353 PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),
354 PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),
355 PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),
356 PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),
357 PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),
358 PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),
359 PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),
360 PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
361 PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
362 PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800363};
Jett.Zhoue7a78102012-09-17 12:19:06 +0800364
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800365static struct pm8607_regulator_info pm8606_regulator_info[] = {
Jett.Zhoue7a78102012-09-17 12:19:06 +0800366 PM8606_PREG(PREREGULATORB, 5),
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400367};
368
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800369#ifdef CONFIG_OF
370static int pm8607_regulator_dt_init(struct platform_device *pdev,
371 struct pm8607_regulator_info *info,
372 struct regulator_config *config)
373{
374 struct device_node *nproot, *np;
375 nproot = pdev->dev.parent->of_node;
376 if (!nproot)
377 return -ENODEV;
378 nproot = of_find_node_by_name(nproot, "regulators");
379 if (!nproot) {
380 dev_err(&pdev->dev, "failed to find regulators node\n");
381 return -ENODEV;
382 }
383 for_each_child_of_node(nproot, np) {
384 if (!of_node_cmp(np->name, info->desc.name)) {
385 config->init_data =
386 of_get_regulator_init_data(&pdev->dev, np);
387 config->of_node = np;
388 break;
389 }
390 }
391 return 0;
392}
393#else
394#define pm8607_regulator_dt_init(x, y, z) (-1)
395#endif
396
Bill Pembertona5023572012-11-19 13:22:22 -0500397static int pm8607_regulator_probe(struct platform_device *pdev)
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400398{
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500399 struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400400 struct pm8607_regulator_info *info = NULL;
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800401 struct regulator_init_data *pdata = pdev->dev.platform_data;
Mark Brownc1727082012-04-04 00:50:22 +0100402 struct regulator_config config = { };
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800403 struct resource *res;
Haojian Zhuang22aad002011-03-07 23:43:11 +0800404 int i;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400405
Mark Brown02367022012-08-07 19:42:48 +0100406 res = platform_get_resource(pdev, IORESOURCE_REG, 0);
Haojian Zhuangff13e9e2012-09-17 12:19:07 +0800407 if (res) {
408 /* There're resources in 88PM8607 regulator driver */
409 for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
410 info = &pm8607_regulator_info[i];
411 if (info->desc.vsel_reg == res->start)
412 break;
413 }
414 if (i == ARRAY_SIZE(pm8607_regulator_info)) {
415 dev_err(&pdev->dev, "Failed to find regulator %llu\n",
416 (unsigned long long)res->start);
417 return -EINVAL;
418 }
419 } else {
420 /* There's no resource in 88PM8606 PREG regulator driver */
421 info = &pm8606_regulator_info[0];
422 /* i is used to check regulator ID */
423 i = -1;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400424 }
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500425 info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
Jett.Zhoue7a78102012-09-17 12:19:06 +0800426 info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion :
427 chip->client;
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400428 info->chip = chip;
429
Haojian Zhuang22aad002011-03-07 23:43:11 +0800430 /* check DVC ramp slope double */
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800431 if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
432 info->slope_double = 1;
Haojian Zhuang22aad002011-03-07 23:43:11 +0800433
Mark Brownc1727082012-04-04 00:50:22 +0100434 config.dev = &pdev->dev;
Mark Brownc1727082012-04-04 00:50:22 +0100435 config.driver_data = info;
436
Haojian Zhuang2e57d562012-09-21 18:06:52 +0800437 if (pm8607_regulator_dt_init(pdev, info, &config))
438 if (pdata)
439 config.init_data = pdata;
440
Axel Linef26e0d2012-04-17 11:32:57 +0800441 if (chip->id == CHIP_PM8607)
442 config.regmap = chip->regmap;
443 else
444 config.regmap = chip->regmap_companion;
445
Mark Brownc1727082012-04-04 00:50:22 +0100446 info->regulator = regulator_register(&info->desc, &config);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400447 if (IS_ERR(info->regulator)) {
448 dev_err(&pdev->dev, "failed to register regulator %s\n",
449 info->desc.name);
450 return PTR_ERR(info->regulator);
451 }
452
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400453 platform_set_drvdata(pdev, info);
454 return 0;
455}
456
Bill Pemberton8dc995f2012-11-19 13:26:10 -0500457static int pm8607_regulator_remove(struct platform_device *pdev)
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400458{
459 struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
460
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400461 platform_set_drvdata(pdev, NULL);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400462 regulator_unregister(info->regulator);
463 return 0;
464}
465
Jett.Zhoue7a78102012-09-17 12:19:06 +0800466static struct platform_device_id pm8607_regulator_driver_ids[] = {
467 {
468 .name = "88pm860x-regulator",
469 .driver_data = 0,
470 }, {
471 .name = "88pm860x-preg",
472 .driver_data = 0,
473 },
474 { },
475};
476MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);
477
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400478static struct platform_driver pm8607_regulator_driver = {
479 .driver = {
480 .name = "88pm860x-regulator",
481 .owner = THIS_MODULE,
482 },
483 .probe = pm8607_regulator_probe,
Bill Pemberton5eb9f2b2012-11-19 13:20:42 -0500484 .remove = pm8607_regulator_remove,
Jett.Zhoue7a78102012-09-17 12:19:06 +0800485 .id_table = pm8607_regulator_driver_ids,
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400486};
487
488static int __init pm8607_regulator_init(void)
489{
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400490 return platform_driver_register(&pm8607_regulator_driver);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400491}
492subsys_initcall(pm8607_regulator_init);
493
494static void __exit pm8607_regulator_exit(void)
495{
Haojian Zhuang192bbb92010-04-29 13:33:50 -0400496 platform_driver_unregister(&pm8607_regulator_driver);
Haojian Zhuangbe0e2d32009-10-08 02:03:57 -0400497}
498module_exit(pm8607_regulator_exit);
499
500MODULE_LICENSE("GPL");
501MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
502MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
503MODULE_ALIAS("platform:88pm8607-regulator");