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
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
|
/*
* Regulator Driver for Freescale MC13783 PMIC
*
* Copyright 2010 Yong Shen <yong.shen@linaro.org>
* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
* Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.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/mfd/mc13783.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/module.h>
#include "mc13xxx.h"
#define MC13783_REG_SWITCHERS0 24
/* Enable does not exist for SW1A */
#define MC13783_REG_SWITCHERS0_SW1AEN 0
#define MC13783_REG_SWITCHERS0_SW1AVSEL 0
#define MC13783_REG_SWITCHERS0_SW1AVSEL_M (63 << 0)
#define MC13783_REG_SWITCHERS1 25
/* Enable does not exist for SW1B */
#define MC13783_REG_SWITCHERS1_SW1BEN 0
#define MC13783_REG_SWITCHERS1_SW1BVSEL 0
#define MC13783_REG_SWITCHERS1_SW1BVSEL_M (63 << 0)
#define MC13783_REG_SWITCHERS2 26
/* Enable does not exist for SW2A */
#define MC13783_REG_SWITCHERS2_SW2AEN 0
#define MC13783_REG_SWITCHERS2_SW2AVSEL 0
#define MC13783_REG_SWITCHERS2_SW2AVSEL_M (63 << 0)
#define MC13783_REG_SWITCHERS3 27
/* Enable does not exist for SW2B */
#define MC13783_REG_SWITCHERS3_SW2BEN 0
#define MC13783_REG_SWITCHERS3_SW2BVSEL 0
#define MC13783_REG_SWITCHERS3_SW2BVSEL_M (63 << 0)
#define MC13783_REG_SWITCHERS5 29
#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
#define MC13783_REG_SWITCHERS5_SW3VSEL 18
#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18)
#define MC13783_REG_REGULATORSETTING0 30
#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2
#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4
#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6
#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9
#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11
#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13
#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14
#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15
#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16
#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2)
#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4)
#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6)
#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9)
#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11)
#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13)
#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14)
#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15)
#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16)
#define MC13783_REG_REGULATORSETTING1 31
#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0
#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2
#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4
#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6
#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9
#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0)
#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2)
#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4)
#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6)
#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9)
#define MC13783_REG_REGULATORMODE0 32
#define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0)
#define MC13783_REG_REGULATORMODE0_VIOHIEN (1 << 3)
#define MC13783_REG_REGULATORMODE0_VIOLOEN (1 << 6)
#define MC13783_REG_REGULATORMODE0_VDIGEN (1 << 9)
#define MC13783_REG_REGULATORMODE0_VGENEN (1 << 12)
#define MC13783_REG_REGULATORMODE0_VRFDIGEN (1 << 15)
#define MC13783_REG_REGULATORMODE0_VRFREFEN (1 << 18)
#define MC13783_REG_REGULATORMODE0_VRFCPEN (1 << 21)
#define MC13783_REG_REGULATORMODE1 33
#define MC13783_REG_REGULATORMODE1_VSIMEN (1 << 0)
#define MC13783_REG_REGULATORMODE1_VESIMEN (1 << 3)
#define MC13783_REG_REGULATORMODE1_VCAMEN (1 << 6)
#define MC13783_REG_REGULATORMODE1_VRFBGEN (1 << 9)
#define MC13783_REG_REGULATORMODE1_VVIBEN (1 << 11)
#define MC13783_REG_REGULATORMODE1_VRF1EN (1 << 12)
#define MC13783_REG_REGULATORMODE1_VRF2EN (1 << 15)
#define MC13783_REG_REGULATORMODE1_VMMC1EN (1 << 18)
#define MC13783_REG_REGULATORMODE1_VMMC2EN (1 << 21)
#define MC13783_REG_POWERMISC 34
#define MC13783_REG_POWERMISC_GPO1EN (1 << 6)
#define MC13783_REG_POWERMISC_GPO2EN (1 << 8)
#define MC13783_REG_POWERMISC_GPO3EN (1 << 10)
#define MC13783_REG_POWERMISC_GPO4EN (1 << 12)
#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15)
#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16)
#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15)
/* Voltage Values */
static const int mc13783_sw1x_val[] = {
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, 1525000, 1550000, 1575000,
1600000, 1625000, 1650000, 1675000,
1700000, 1700000, 1700000, 1700000,
1800000, 1800000, 1800000, 1800000,
1850000, 1850000, 1850000, 1850000,
2000000, 2000000, 2000000, 2000000,
2100000, 2100000, 2100000, 2100000,
2200000, 2200000, 2200000, 2200000,
2200000, 2200000, 2200000, 2200000,
2200000, 2200000, 2200000, 2200000,
};
static const int mc13783_sw2x_val[] = {
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, 1525000, 1550000, 1575000,
1600000, 1625000, 1650000, 1675000,
1700000, 1700000, 1700000, 1700000,
1800000, 1800000, 1800000, 1800000,
1900000, 1900000, 1900000, 1900000,
2000000, 2000000, 2000000, 2000000,
2100000, 2100000, 2100000, 2100000,
2200000, 2200000, 2200000, 2200000,
2200000, 2200000, 2200000, 2200000,
2200000, 2200000, 2200000, 2200000,
};
static const unsigned int mc13783_sw3_val[] = {
5000000, 5000000, 5000000, 5500000,
};
static const unsigned int mc13783_vaudio_val[] = {
2775000,
};
static const unsigned int mc13783_viohi_val[] = {
2775000,
};
static const unsigned int mc13783_violo_val[] = {
1200000, 1300000, 1500000, 1800000,
};
static const unsigned int mc13783_vdig_val[] = {
1200000, 1300000, 1500000, 1800000,
};
static const unsigned int mc13783_vgen_val[] = {
1200000, 1300000, 1500000, 1800000,
1100000, 2000000, 2775000, 2400000,
};
static const unsigned int mc13783_vrfdig_val[] = {
1200000, 1500000, 1800000, 1875000,
};
static const unsigned int mc13783_vrfref_val[] = {
2475000, 2600000, 2700000, 2775000,
};
static const unsigned int mc13783_vrfcp_val[] = {
2700000, 2775000,
};
static const unsigned int mc13783_vsim_val[] = {
1800000, 2900000, 3000000,
};
static const unsigned int mc13783_vesim_val[] = {
1800000, 2900000,
};
static const unsigned int mc13783_vcam_val[] = {
1500000, 1800000, 2500000, 2550000,
2600000, 2750000, 2800000, 3000000,
};
static const unsigned int mc13783_vrfbg_val[] = {
1250000,
};
static const unsigned int mc13783_vvib_val[] = {
1300000, 1800000, 2000000, 3000000,
};
static const unsigned int mc13783_vmmc_val[] = {
1600000, 1800000, 2000000, 2600000,
2700000, 2800000, 2900000, 3000000,
};
static const unsigned int mc13783_vrf_val[] = {
1500000, 1875000, 2700000, 2775000,
};
static const unsigned int mc13783_gpo_val[] = {
3100000,
};
static const unsigned int mc13783_pwgtdrv_val[] = {
5500000,
};
static struct regulator_ops mc13783_gpo_regulator_ops;
#define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages) \
MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
mc13xxx_regulator_ops)
#define MC13783_FIXED_DEFINE(prefix, name, reg, voltages) \
MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
mc13xxx_fixed_regulator_ops)
#define MC13783_GPO_DEFINE(prefix, name, reg, voltages) \
MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
mc13783_gpo_regulator_ops)
#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
static struct mc13xxx_regulator mc13783_regulators[] = {
MC13783_DEFINE_SW(SW1A, SWITCHERS0, SWITCHERS0, mc13783_sw1x_val),
MC13783_DEFINE_SW(SW1B, SWITCHERS1, SWITCHERS1, mc13783_sw1x_val),
MC13783_DEFINE_SW(SW2A, SWITCHERS2, SWITCHERS2, mc13783_sw2x_val),
MC13783_DEFINE_SW(SW2B, SWITCHERS3, SWITCHERS3, mc13783_sw2x_val),
MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \
mc13783_violo_val),
MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vdig_val),
MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vgen_val),
MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfdig_val),
MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfref_val),
MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfcp_val),
MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vsim_val),
MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vesim_val),
MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vcam_val),
MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vvib_val),
MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vrf_val),
MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vrf_val),
MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vmmc_val),
MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vmmc_val),
MC13783_GPO_DEFINE(REG, GPO1, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REG, GPO3, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REG, GPO4, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REG, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
MC13783_GPO_DEFINE(REG, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
};
static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
u32 val)
{
struct mc13xxx *mc13783 = priv->mc13xxx;
int ret;
u32 valread;
BUG_ON(val & ~mask);
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
if (ret)
goto out;
/* Update the stored state for Power Gates. */
priv->powermisc_pwgt_state =
(priv->powermisc_pwgt_state & ~mask) | val;
priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
/* Construct the new register value */
valread = (valread & ~mask) | val;
/* Overwrite the PWGTxEN with the stored version */
valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
priv->powermisc_pwgt_state;
ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
out:
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int id = rdev_get_id(rdev);
u32 en_val = mc13xxx_regulators[id].enable_bit;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
/* Power Gate enable value is 0 */
if (id == MC13783_REG_PWGT1SPI ||
id == MC13783_REG_PWGT2SPI)
en_val = 0;
return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
en_val);
}
static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int id = rdev_get_id(rdev);
u32 dis_val = 0;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
/* Power Gate disable value is 1 */
if (id == MC13783_REG_PWGT1SPI ||
id == MC13783_REG_PWGT2SPI)
dis_val = mc13xxx_regulators[id].enable_bit;
return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
dis_val);
}
static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int ret, id = rdev_get_id(rdev);
unsigned int val;
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
/* Power Gates state is stored in powermisc_pwgt_state
* where the meaning of bits is negated */
val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
(priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);
return (val & mc13xxx_regulators[id].enable_bit) != 0;
}
static struct regulator_ops mc13783_gpo_regulator_ops = {
.enable = mc13783_gpo_regulator_enable,
.disable = mc13783_gpo_regulator_disable,
.is_enabled = mc13783_gpo_regulator_is_enabled,
.list_voltage = regulator_list_voltage_table,
.set_voltage = mc13xxx_fixed_regulator_set_voltage,
};
static int mc13783_regulator_probe(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
struct mc13xxx_regulator_init_data *mc13xxx_data;
struct regulator_config config = { };
int i, ret, num_regulators;
num_regulators = mc13xxx_get_num_regulators_dt(pdev);
if (num_regulators <= 0 && pdata)
num_regulators = pdata->num_regulators;
if (num_regulators <= 0)
return -EINVAL;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
num_regulators * sizeof(priv->regulators[0]),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->num_regulators = num_regulators;
priv->mc13xxx_regulators = mc13783_regulators;
priv->mc13xxx = mc13783;
platform_set_drvdata(pdev, priv);
mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13783_regulators,
ARRAY_SIZE(mc13783_regulators));
for (i = 0; i < priv->num_regulators; i++) {
struct regulator_init_data *init_data;
struct regulator_desc *desc;
struct device_node *node = NULL;
int id;
if (mc13xxx_data) {
id = mc13xxx_data[i].id;
init_data = mc13xxx_data[i].init_data;
node = mc13xxx_data[i].node;
} else {
id = pdata->regulators[i].id;
init_data = pdata->regulators[i].init_data;
}
desc = &mc13783_regulators[id].desc;
config.dev = &pdev->dev;
config.init_data = init_data;
config.driver_data = priv;
config.of_node = node;
priv->regulators[i] = regulator_register(desc, &config);
if (IS_ERR(priv->regulators[i])) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
mc13783_regulators[i].desc.name);
ret = PTR_ERR(priv->regulators[i]);
goto err;
}
}
return 0;
err:
while (--i >= 0)
regulator_unregister(priv->regulators[i]);
return ret;
}
static int mc13783_regulator_remove(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
int i;
platform_set_drvdata(pdev, NULL);
for (i = 0; i < priv->num_regulators; i++)
regulator_unregister(priv->regulators[i]);
return 0;
}
static struct platform_driver mc13783_regulator_driver = {
.driver = {
.name = "mc13783-regulator",
.owner = THIS_MODULE,
},
.remove = mc13783_regulator_remove,
.probe = mc13783_regulator_probe,
};
static int __init mc13783_regulator_init(void)
{
return platform_driver_register(&mc13783_regulator_driver);
}
subsys_initcall(mc13783_regulator_init);
static void __exit mc13783_regulator_exit(void)
{
platform_driver_unregister(&mc13783_regulator_driver);
}
module_exit(mc13783_regulator_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
MODULE_ALIAS("platform:mc13783-regulator");
|
