1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
|
/*
* Regulators driver for Marvell 88PM8607
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/88pm860x.h>
struct pm8607_regulator_info {
struct regulator_desc desc;
struct pm860x_chip *chip;
struct regulator_dev *regulator;
struct i2c_client *i2c;
unsigned int *vol_table;
unsigned int *vol_suspend;
int vol_reg;
int vol_shift;
int vol_nbits;
int update_reg;
int update_bit;
int enable_reg;
int enable_bit;
int slope_double;
};
static const unsigned int BUCK1_table[] = {
725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
};
static const unsigned int BUCK1_suspend_table[] = {
0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};
static const unsigned int BUCK2_table[] = {
0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
};
static const unsigned int BUCK2_suspend_table[] = {
0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
};
static const unsigned int BUCK3_table[] = {
0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};
static const unsigned int BUCK3_suspend_table[] = {
0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};
static const unsigned int LDO1_table[] = {
1800000, 1200000, 2800000, 0,
};
static const unsigned int LDO1_suspend_table[] = {
1800000, 1200000, 0, 0,
};
static const unsigned int LDO2_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};
static const unsigned int LDO2_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO3_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};
static const unsigned int LDO3_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO4_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
};
static const unsigned int LDO4_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
};
static const unsigned int LDO5_table[] = {
2900000, 3000000, 3100000, 3300000,
};
static const unsigned int LDO5_suspend_table[] = {
2900000, 0, 0, 0,
};
static const unsigned int LDO6_table[] = {
1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
};
static const unsigned int LDO6_suspend_table[] = {
1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
};
static const unsigned int LDO7_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO7_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO8_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO8_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO9_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};
static const unsigned int LDO9_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};
static const unsigned int LDO10_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};
static const unsigned int LDO10_suspend_table[] = {
1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};
static const unsigned int LDO12_table[] = {
1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};
static const unsigned int LDO12_suspend_table[] = {
1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};
static const unsigned int LDO13_table[] = {
1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, 0,
};
static const unsigned int LDO13_suspend_table[] = {
0,
};
static const unsigned int LDO14_table[] = {
1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
};
static const unsigned int LDO14_suspend_table[] = {
1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
};
static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
int ret = -EINVAL;
if (info->vol_table && (index < (1 << info->vol_nbits))) {
ret = info->vol_table[index];
if (info->slope_double)
ret <<= 1;
}
return ret;
}
static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
int i, ret = -ENOENT;
if (info->slope_double) {
min_uV = min_uV >> 1;
max_uV = max_uV >> 1;
}
if (info->vol_table) {
for (i = 0; i < (1 << info->vol_nbits); i++) {
if (!info->vol_table[i])
break;
if ((min_uV <= info->vol_table[i])
&& (max_uV >= info->vol_table[i])) {
ret = i;
break;
}
}
}
if (ret < 0)
pr_err("invalid voltage range (%d %d) uV\n", min_uV, max_uV);
return ret;
}
static int pm8607_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
uint8_t val, mask;
int ret;
if (min_uV > max_uV) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
ret = choose_voltage(rdev, min_uV, max_uV);
if (ret < 0)
return -EINVAL;
val = (uint8_t)(ret << info->vol_shift);
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val);
if (ret)
return ret;
switch (info->desc.id) {
case PM8607_ID_BUCK1:
case PM8607_ID_BUCK3:
ret = pm860x_set_bits(info->i2c, info->update_reg,
1 << info->update_bit,
1 << info->update_bit);
break;
}
return ret;
}
static int pm8607_get_voltage(struct regulator_dev *rdev)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
uint8_t val, mask;
int ret;
ret = pm860x_reg_read(info->i2c, info->vol_reg);
if (ret < 0)
return ret;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val = ((unsigned char)ret & mask) >> info->vol_shift;
return pm8607_list_voltage(rdev, val);
}
static int pm8607_enable(struct regulator_dev *rdev)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
return pm860x_set_bits(info->i2c, info->enable_reg,
1 << info->enable_bit,
1 << info->enable_bit);
}
static int pm8607_disable(struct regulator_dev *rdev)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
return pm860x_set_bits(info->i2c, info->enable_reg,
1 << info->enable_bit, 0);
}
static int pm8607_is_enabled(struct regulator_dev *rdev)
{
struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
int ret;
ret = pm860x_reg_read(info->i2c, info->enable_reg);
if (ret < 0)
return ret;
return !!((unsigned char)ret & (1 << info->enable_bit));
}
static struct regulator_ops pm8607_regulator_ops = {
.set_voltage = pm8607_set_voltage,
.get_voltage = pm8607_get_voltage,
.enable = pm8607_enable,
.disable = pm8607_disable,
.is_enabled = pm8607_is_enabled,
};
#define PM8607_DVC(vreg, nbits, ureg, ubit, ereg, ebit) \
{ \
.desc = { \
.name = #vreg, \
.ops = &pm8607_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PM8607_ID_##vreg, \
.owner = THIS_MODULE, \
}, \
.vol_reg = PM8607_##vreg, \
.vol_shift = (0), \
.vol_nbits = (nbits), \
.update_reg = PM8607_##ureg, \
.update_bit = (ubit), \
.enable_reg = PM8607_##ereg, \
.enable_bit = (ebit), \
.slope_double = (0), \
.vol_table = (unsigned int *)&vreg##_table, \
.vol_suspend = (unsigned int *)&vreg##_suspend_table, \
}
#define PM8607_LDO(_id, vreg, shift, nbits, ereg, ebit) \
{ \
.desc = { \
.name = "LDO" #_id, \
.ops = &pm8607_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PM8607_ID_LDO##_id, \
.owner = THIS_MODULE, \
}, \
.vol_reg = PM8607_##vreg, \
.vol_shift = (shift), \
.vol_nbits = (nbits), \
.enable_reg = PM8607_##ereg, \
.enable_bit = (ebit), \
.slope_double = (0), \
.vol_table = (unsigned int *)&LDO##_id##_table, \
.vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
}
static struct pm8607_regulator_info pm8607_regulator_info[] = {
PM8607_DVC(BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),
PM8607_DVC(BUCK2, 6, GO, 1, SUPPLIES_EN11, 1),
PM8607_DVC(BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),
PM8607_LDO( 1, LDO1, 0, 2, SUPPLIES_EN11, 3),
PM8607_LDO( 2, LDO2, 0, 3, SUPPLIES_EN11, 4),
PM8607_LDO( 3, LDO3, 0, 3, SUPPLIES_EN11, 5),
PM8607_LDO( 4, LDO4, 0, 3, SUPPLIES_EN11, 6),
PM8607_LDO( 5, LDO5, 0, 2, SUPPLIES_EN11, 7),
PM8607_LDO( 6, LDO6, 0, 3, SUPPLIES_EN12, 0),
PM8607_LDO( 7, LDO7, 0, 3, SUPPLIES_EN12, 1),
PM8607_LDO( 8, LDO8, 0, 3, SUPPLIES_EN12, 2),
PM8607_LDO( 9, LDO9, 0, 3, SUPPLIES_EN12, 3),
PM8607_LDO(10, LDO10, 0, 3, SUPPLIES_EN12, 4),
PM8607_LDO(12, LDO12, 0, 4, SUPPLIES_EN12, 5),
PM8607_LDO(13, VIBRATOR_SET, 1, 3, VIBRATOR_SET, 0),
PM8607_LDO(14, LDO14, 0, 4, SUPPLIES_EN12, 6),
};
static inline struct pm8607_regulator_info *find_regulator_info(int id)
{
struct pm8607_regulator_info *info;
int i;
for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
info = &pm8607_regulator_info[i];
if (info->desc.id == id)
return info;
}
return NULL;
}
static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
{
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct pm860x_platform_data *pdata = chip->dev->platform_data;
struct pm8607_regulator_info *info = NULL;
info = find_regulator_info(pdev->id);
if (info == NULL) {
dev_err(&pdev->dev, "invalid regulator ID specified\n");
return -EINVAL;
}
info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
info->chip = chip;
info->regulator = regulator_register(&info->desc, &pdev->dev,
pdata->regulator[pdev->id], info);
if (IS_ERR(info->regulator)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
info->desc.name);
return PTR_ERR(info->regulator);
}
/* check DVC ramp slope double */
if (info->desc.id == PM8607_ID_BUCK3)
if (info->chip->buck3_double)
info->slope_double = 1;
platform_set_drvdata(pdev, info);
return 0;
}
static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
{
struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
regulator_unregister(info->regulator);
return 0;
}
static struct platform_driver pm8607_regulator_driver = {
.driver = {
.name = "88pm860x-regulator",
.owner = THIS_MODULE,
},
.probe = pm8607_regulator_probe,
.remove = __devexit_p(pm8607_regulator_remove),
};
static int __init pm8607_regulator_init(void)
{
return platform_driver_register(&pm8607_regulator_driver);
}
subsys_initcall(pm8607_regulator_init);
static void __exit pm8607_regulator_exit(void)
{
platform_driver_unregister(&pm8607_regulator_driver);
}
module_exit(pm8607_regulator_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
MODULE_ALIAS("platform:88pm8607-regulator");
|
