GNU Linux-libre 5.10.219-gnu1
[releases.git] / drivers / regulator / act8865-regulator.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
4  *
5  * http://www.active-semi.com/products/power-management-units/act88xx/
6  *
7  * Copyright (C) 2013 Atmel Corporation
8  */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/i2c.h>
13 #include <linux/err.h>
14 #include <linux/platform_device.h>
15 #include <linux/regulator/driver.h>
16 #include <linux/regulator/act8865.h>
17 #include <linux/of.h>
18 #include <linux/of_device.h>
19 #include <linux/power_supply.h>
20 #include <linux/regulator/of_regulator.h>
21 #include <linux/regmap.h>
22 #include <dt-bindings/regulator/active-semi,8865-regulator.h>
23
24 /*
25  * ACT8600 Global Register Map.
26  */
27 #define ACT8600_SYS_MODE        0x00
28 #define ACT8600_SYS_CTRL        0x01
29 #define ACT8600_DCDC1_VSET      0x10
30 #define ACT8600_DCDC1_CTRL      0x12
31 #define ACT8600_DCDC2_VSET      0x20
32 #define ACT8600_DCDC2_CTRL      0x22
33 #define ACT8600_DCDC3_VSET      0x30
34 #define ACT8600_DCDC3_CTRL      0x32
35 #define ACT8600_SUDCDC4_VSET    0x40
36 #define ACT8600_SUDCDC4_CTRL    0x41
37 #define ACT8600_LDO5_VSET       0x50
38 #define ACT8600_LDO5_CTRL       0x51
39 #define ACT8600_LDO6_VSET       0x60
40 #define ACT8600_LDO6_CTRL       0x61
41 #define ACT8600_LDO7_VSET       0x70
42 #define ACT8600_LDO7_CTRL       0x71
43 #define ACT8600_LDO8_VSET       0x80
44 #define ACT8600_LDO8_CTRL       0x81
45 #define ACT8600_LDO910_CTRL     0x91
46 #define ACT8600_APCH0           0xA1
47 #define ACT8600_APCH1           0xA8
48 #define ACT8600_APCH2           0xA9
49 #define ACT8600_APCH_STAT       0xAA
50 #define ACT8600_OTG0            0xB0
51 #define ACT8600_OTG1            0xB2
52
53 /*
54  * ACT8846 Global Register Map.
55  */
56 #define ACT8846_SYS0            0x00
57 #define ACT8846_SYS1            0x01
58 #define ACT8846_REG1_VSET       0x10
59 #define ACT8846_REG1_CTRL       0x12
60 #define ACT8846_REG2_VSET0      0x20
61 #define ACT8846_REG2_VSET1      0x21
62 #define ACT8846_REG2_CTRL       0x22
63 #define ACT8846_REG3_VSET0      0x30
64 #define ACT8846_REG3_VSET1      0x31
65 #define ACT8846_REG3_CTRL       0x32
66 #define ACT8846_REG4_VSET0      0x40
67 #define ACT8846_REG4_VSET1      0x41
68 #define ACT8846_REG4_CTRL       0x42
69 #define ACT8846_REG5_VSET       0x50
70 #define ACT8846_REG5_CTRL       0x51
71 #define ACT8846_REG6_VSET       0x58
72 #define ACT8846_REG6_CTRL       0x59
73 #define ACT8846_REG7_VSET       0x60
74 #define ACT8846_REG7_CTRL       0x61
75 #define ACT8846_REG8_VSET       0x68
76 #define ACT8846_REG8_CTRL       0x69
77 #define ACT8846_REG9_VSET       0x70
78 #define ACT8846_REG9_CTRL       0x71
79 #define ACT8846_REG10_VSET      0x80
80 #define ACT8846_REG10_CTRL      0x81
81 #define ACT8846_REG11_VSET      0x90
82 #define ACT8846_REG11_CTRL      0x91
83 #define ACT8846_REG12_VSET      0xa0
84 #define ACT8846_REG12_CTRL      0xa1
85 #define ACT8846_REG13_CTRL      0xb1
86 #define ACT8846_GLB_OFF_CTRL    0xc3
87 #define ACT8846_OFF_SYSMASK     0x18
88
89 /*
90  * ACT8865 Global Register Map.
91  */
92 #define ACT8865_SYS_MODE        0x00
93 #define ACT8865_SYS_CTRL        0x01
94 #define ACT8865_SYS_UNLK_REGS   0x0b
95 #define ACT8865_DCDC1_VSET1     0x20
96 #define ACT8865_DCDC1_VSET2     0x21
97 #define ACT8865_DCDC1_CTRL      0x22
98 #define ACT8865_DCDC1_SUS       0x24
99 #define ACT8865_DCDC2_VSET1     0x30
100 #define ACT8865_DCDC2_VSET2     0x31
101 #define ACT8865_DCDC2_CTRL      0x32
102 #define ACT8865_DCDC2_SUS       0x34
103 #define ACT8865_DCDC3_VSET1     0x40
104 #define ACT8865_DCDC3_VSET2     0x41
105 #define ACT8865_DCDC3_CTRL      0x42
106 #define ACT8865_DCDC3_SUS       0x44
107 #define ACT8865_LDO1_VSET       0x50
108 #define ACT8865_LDO1_CTRL       0x51
109 #define ACT8865_LDO1_SUS        0x52
110 #define ACT8865_LDO2_VSET       0x54
111 #define ACT8865_LDO2_CTRL       0x55
112 #define ACT8865_LDO2_SUS        0x56
113 #define ACT8865_LDO3_VSET       0x60
114 #define ACT8865_LDO3_CTRL       0x61
115 #define ACT8865_LDO3_SUS        0x62
116 #define ACT8865_LDO4_VSET       0x64
117 #define ACT8865_LDO4_CTRL       0x65
118 #define ACT8865_LDO4_SUS        0x66
119 #define ACT8865_MSTROFF         0x20
120
121 /*
122  * Field Definitions.
123  */
124 #define ACT8865_ENA             0x80    /* ON - [7] */
125 #define ACT8865_DIS             0x40    /* DIS - [6] */
126
127 #define ACT8865_VSEL_MASK       0x3F    /* VSET - [5:0] */
128
129
130 #define ACT8600_LDO10_ENA               0x40    /* ON - [6] */
131 #define ACT8600_SUDCDC_VSEL_MASK        0xFF    /* SUDCDC VSET - [7:0] */
132
133 #define ACT8600_APCH_CHG_ACIN           BIT(7)
134 #define ACT8600_APCH_CHG_USB            BIT(6)
135 #define ACT8600_APCH_CSTATE0            BIT(5)
136 #define ACT8600_APCH_CSTATE1            BIT(4)
137
138 /*
139  * ACT8865 voltage number
140  */
141 #define ACT8865_VOLTAGE_NUM     64
142 #define ACT8600_SUDCDC_VOLTAGE_NUM      256
143
144 struct act8865 {
145         struct regmap *regmap;
146         int off_reg;
147         int off_mask;
148 };
149
150 static const struct regmap_range act8600_reg_ranges[] = {
151         regmap_reg_range(0x00, 0x01),
152         regmap_reg_range(0x10, 0x10),
153         regmap_reg_range(0x12, 0x12),
154         regmap_reg_range(0x20, 0x20),
155         regmap_reg_range(0x22, 0x22),
156         regmap_reg_range(0x30, 0x30),
157         regmap_reg_range(0x32, 0x32),
158         regmap_reg_range(0x40, 0x41),
159         regmap_reg_range(0x50, 0x51),
160         regmap_reg_range(0x60, 0x61),
161         regmap_reg_range(0x70, 0x71),
162         regmap_reg_range(0x80, 0x81),
163         regmap_reg_range(0x91, 0x91),
164         regmap_reg_range(0xA1, 0xA1),
165         regmap_reg_range(0xA8, 0xAA),
166         regmap_reg_range(0xB0, 0xB0),
167         regmap_reg_range(0xB2, 0xB2),
168         regmap_reg_range(0xC1, 0xC1),
169 };
170
171 static const struct regmap_range act8600_reg_ro_ranges[] = {
172         regmap_reg_range(0xAA, 0xAA),
173         regmap_reg_range(0xC1, 0xC1),
174 };
175
176 static const struct regmap_range act8600_reg_volatile_ranges[] = {
177         regmap_reg_range(0x00, 0x01),
178         regmap_reg_range(0x12, 0x12),
179         regmap_reg_range(0x22, 0x22),
180         regmap_reg_range(0x32, 0x32),
181         regmap_reg_range(0x41, 0x41),
182         regmap_reg_range(0x51, 0x51),
183         regmap_reg_range(0x61, 0x61),
184         regmap_reg_range(0x71, 0x71),
185         regmap_reg_range(0x81, 0x81),
186         regmap_reg_range(0xA8, 0xA8),
187         regmap_reg_range(0xAA, 0xAA),
188         regmap_reg_range(0xB0, 0xB0),
189         regmap_reg_range(0xC1, 0xC1),
190 };
191
192 static const struct regmap_access_table act8600_write_ranges_table = {
193         .yes_ranges     = act8600_reg_ranges,
194         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
195         .no_ranges      = act8600_reg_ro_ranges,
196         .n_no_ranges    = ARRAY_SIZE(act8600_reg_ro_ranges),
197 };
198
199 static const struct regmap_access_table act8600_read_ranges_table = {
200         .yes_ranges     = act8600_reg_ranges,
201         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
202 };
203
204 static const struct regmap_access_table act8600_volatile_ranges_table = {
205         .yes_ranges     = act8600_reg_volatile_ranges,
206         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_volatile_ranges),
207 };
208
209 static const struct regmap_config act8600_regmap_config = {
210         .reg_bits = 8,
211         .val_bits = 8,
212         .max_register = 0xFF,
213         .wr_table = &act8600_write_ranges_table,
214         .rd_table = &act8600_read_ranges_table,
215         .volatile_table = &act8600_volatile_ranges_table,
216 };
217
218 static const struct regmap_config act8865_regmap_config = {
219         .reg_bits = 8,
220         .val_bits = 8,
221 };
222
223 static const struct linear_range act8865_voltage_ranges[] = {
224         REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
225         REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
226         REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
227 };
228
229 static const struct linear_range act8600_sudcdc_voltage_ranges[] = {
230         REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
231         REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
232         REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
233         REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
234         REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
235 };
236
237 static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable)
238 {
239         struct regmap *regmap = rdev->regmap;
240         int id = rdev->desc->id, reg, val;
241
242         switch (id) {
243         case ACT8865_ID_DCDC1:
244                 reg = ACT8865_DCDC1_SUS;
245                 val = 0xa8;
246                 break;
247         case ACT8865_ID_DCDC2:
248                 reg = ACT8865_DCDC2_SUS;
249                 val = 0xa8;
250                 break;
251         case ACT8865_ID_DCDC3:
252                 reg = ACT8865_DCDC3_SUS;
253                 val = 0xa8;
254                 break;
255         case ACT8865_ID_LDO1:
256                 reg = ACT8865_LDO1_SUS;
257                 val = 0xe8;
258                 break;
259         case ACT8865_ID_LDO2:
260                 reg = ACT8865_LDO2_SUS;
261                 val = 0xe8;
262                 break;
263         case ACT8865_ID_LDO3:
264                 reg = ACT8865_LDO3_SUS;
265                 val = 0xe8;
266                 break;
267         case ACT8865_ID_LDO4:
268                 reg = ACT8865_LDO4_SUS;
269                 val = 0xe8;
270                 break;
271         default:
272                 return -EINVAL;
273         }
274
275         if (enable)
276                 val |= BIT(4);
277
278         /*
279          * Ask the PMIC to enable/disable this output when entering hibernate
280          * mode.
281          */
282         return regmap_write(regmap, reg, val);
283 }
284
285 static int act8865_set_suspend_enable(struct regulator_dev *rdev)
286 {
287         return act8865_set_suspend_state(rdev, true);
288 }
289
290 static int act8865_set_suspend_disable(struct regulator_dev *rdev)
291 {
292         return act8865_set_suspend_state(rdev, false);
293 }
294
295 static unsigned int act8865_of_map_mode(unsigned int mode)
296 {
297         switch (mode) {
298         case ACT8865_REGULATOR_MODE_FIXED:
299                 return REGULATOR_MODE_FAST;
300         case ACT8865_REGULATOR_MODE_NORMAL:
301                 return REGULATOR_MODE_NORMAL;
302         case ACT8865_REGULATOR_MODE_LOWPOWER:
303                 return REGULATOR_MODE_STANDBY;
304         default:
305                 return REGULATOR_MODE_INVALID;
306         }
307 }
308
309 static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode)
310 {
311         struct regmap *regmap = rdev->regmap;
312         int id = rdev_get_id(rdev);
313         int reg, val = 0;
314
315         switch (id) {
316         case ACT8865_ID_DCDC1:
317                 reg = ACT8865_DCDC1_CTRL;
318                 break;
319         case ACT8865_ID_DCDC2:
320                 reg = ACT8865_DCDC2_CTRL;
321                 break;
322         case ACT8865_ID_DCDC3:
323                 reg = ACT8865_DCDC3_CTRL;
324                 break;
325         case ACT8865_ID_LDO1:
326                 reg = ACT8865_LDO1_CTRL;
327                 break;
328         case ACT8865_ID_LDO2:
329                 reg = ACT8865_LDO2_CTRL;
330                 break;
331         case ACT8865_ID_LDO3:
332                 reg = ACT8865_LDO3_CTRL;
333                 break;
334         case ACT8865_ID_LDO4:
335                 reg = ACT8865_LDO4_CTRL;
336                 break;
337         default:
338                 return -EINVAL;
339         }
340
341         switch (mode) {
342         case REGULATOR_MODE_FAST:
343         case REGULATOR_MODE_NORMAL:
344                 if (id <= ACT8865_ID_DCDC3)
345                         val = BIT(5);
346                 break;
347         case REGULATOR_MODE_STANDBY:
348                 if (id > ACT8865_ID_DCDC3)
349                         val = BIT(5);
350                 break;
351         default:
352                 return -EINVAL;
353         }
354
355         return regmap_update_bits(regmap, reg, BIT(5), val);
356 }
357
358 static unsigned int act8865_get_mode(struct regulator_dev *rdev)
359 {
360         struct regmap *regmap = rdev->regmap;
361         int id = rdev_get_id(rdev);
362         int reg, ret, val = 0;
363
364         switch (id) {
365         case ACT8865_ID_DCDC1:
366                 reg = ACT8865_DCDC1_CTRL;
367                 break;
368         case ACT8865_ID_DCDC2:
369                 reg = ACT8865_DCDC2_CTRL;
370                 break;
371         case ACT8865_ID_DCDC3:
372                 reg = ACT8865_DCDC3_CTRL;
373                 break;
374         case ACT8865_ID_LDO1:
375                 reg = ACT8865_LDO1_CTRL;
376                 break;
377         case ACT8865_ID_LDO2:
378                 reg = ACT8865_LDO2_CTRL;
379                 break;
380         case ACT8865_ID_LDO3:
381                 reg = ACT8865_LDO3_CTRL;
382                 break;
383         case ACT8865_ID_LDO4:
384                 reg = ACT8865_LDO4_CTRL;
385                 break;
386         default:
387                 return -EINVAL;
388         }
389
390         ret = regmap_read(regmap, reg, &val);
391         if (ret)
392                 return ret;
393
394         if (id <= ACT8865_ID_DCDC3 && (val & BIT(5)))
395                 return REGULATOR_MODE_FAST;
396         else if (id > ACT8865_ID_DCDC3 && !(val & BIT(5)))
397                 return REGULATOR_MODE_NORMAL;
398         else
399                 return REGULATOR_MODE_STANDBY;
400 }
401
402 static const struct regulator_ops act8865_ops = {
403         .list_voltage           = regulator_list_voltage_linear_range,
404         .map_voltage            = regulator_map_voltage_linear_range,
405         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
406         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
407         .enable                 = regulator_enable_regmap,
408         .disable                = regulator_disable_regmap,
409         .set_mode               = act8865_set_mode,
410         .get_mode               = act8865_get_mode,
411         .is_enabled             = regulator_is_enabled_regmap,
412         .set_suspend_enable     = act8865_set_suspend_enable,
413         .set_suspend_disable    = act8865_set_suspend_disable,
414 };
415
416 static const struct regulator_ops act8865_ldo_ops = {
417         .list_voltage           = regulator_list_voltage_linear_range,
418         .map_voltage            = regulator_map_voltage_linear_range,
419         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
420         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
421         .enable                 = regulator_enable_regmap,
422         .disable                = regulator_disable_regmap,
423         .set_mode               = act8865_set_mode,
424         .get_mode               = act8865_get_mode,
425         .is_enabled             = regulator_is_enabled_regmap,
426         .set_suspend_enable     = act8865_set_suspend_enable,
427         .set_suspend_disable    = act8865_set_suspend_disable,
428         .set_pull_down          = regulator_set_pull_down_regmap,
429 };
430
431 static const struct regulator_ops act8865_fixed_ldo_ops = {
432         .enable                 = regulator_enable_regmap,
433         .disable                = regulator_disable_regmap,
434         .is_enabled             = regulator_is_enabled_regmap,
435 };
436
437 #define ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, _ops)     \
438         [_family##_ID_##_id] = {                                        \
439                 .name                   = _name,                        \
440                 .of_match               = of_match_ptr(_name),          \
441                 .of_map_mode            = act8865_of_map_mode,          \
442                 .regulators_node        = of_match_ptr("regulators"),   \
443                 .supply_name            = _supply,                      \
444                 .id                     = _family##_ID_##_id,           \
445                 .type                   = REGULATOR_VOLTAGE,            \
446                 .ops                    = _ops,                         \
447                 .n_voltages             = ACT8865_VOLTAGE_NUM,          \
448                 .linear_ranges          = act8865_voltage_ranges,       \
449                 .n_linear_ranges        = ARRAY_SIZE(act8865_voltage_ranges), \
450                 .vsel_reg               = _family##_##_id##_##_vsel_reg, \
451                 .vsel_mask              = ACT8865_VSEL_MASK,            \
452                 .enable_reg             = _family##_##_id##_CTRL,       \
453                 .enable_mask            = ACT8865_ENA,                  \
454                 .pull_down_reg          = _family##_##_id##_CTRL,       \
455                 .pull_down_mask         = ACT8865_DIS,                  \
456                 .owner                  = THIS_MODULE,                  \
457         }
458
459 #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \
460         ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ops)
461
462 #define ACT88xx_LDO(_name, _family, _id, _vsel_reg, _supply) \
463         ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ldo_ops)
464
465 static const struct regulator_desc act8600_regulators[] = {
466         ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
467         ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
468         ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
469         {
470                 .name = "SUDCDC_REG4",
471                 .of_match = of_match_ptr("SUDCDC_REG4"),
472                 .regulators_node = of_match_ptr("regulators"),
473                 .id = ACT8600_ID_SUDCDC4,
474                 .ops = &act8865_ops,
475                 .type = REGULATOR_VOLTAGE,
476                 .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
477                 .linear_ranges = act8600_sudcdc_voltage_ranges,
478                 .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
479                 .vsel_reg = ACT8600_SUDCDC4_VSET,
480                 .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
481                 .enable_reg = ACT8600_SUDCDC4_CTRL,
482                 .enable_mask = ACT8865_ENA,
483                 .owner = THIS_MODULE,
484         },
485         ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
486         ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
487         ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
488         ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
489         {
490                 .name = "LDO_REG9",
491                 .of_match = of_match_ptr("LDO_REG9"),
492                 .regulators_node = of_match_ptr("regulators"),
493                 .id = ACT8600_ID_LDO9,
494                 .ops = &act8865_fixed_ldo_ops,
495                 .type = REGULATOR_VOLTAGE,
496                 .n_voltages = 1,
497                 .fixed_uV = 3300000,
498                 .enable_reg = ACT8600_LDO910_CTRL,
499                 .enable_mask = ACT8865_ENA,
500                 .owner = THIS_MODULE,
501         },
502         {
503                 .name = "LDO_REG10",
504                 .of_match = of_match_ptr("LDO_REG10"),
505                 .regulators_node = of_match_ptr("regulators"),
506                 .id = ACT8600_ID_LDO10,
507                 .ops = &act8865_fixed_ldo_ops,
508                 .type = REGULATOR_VOLTAGE,
509                 .n_voltages = 1,
510                 .fixed_uV = 1200000,
511                 .enable_reg = ACT8600_LDO910_CTRL,
512                 .enable_mask = ACT8600_LDO10_ENA,
513                 .owner = THIS_MODULE,
514         },
515 };
516
517 static const struct regulator_desc act8846_regulators[] = {
518         ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
519         ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
520         ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
521         ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
522         ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
523         ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
524         ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
525         ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
526         ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
527         ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
528         ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
529         ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
530 };
531
532 static const struct regulator_desc act8865_regulators[] = {
533         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
534         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
535         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
536         ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
537         ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
538         ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
539         ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
540 };
541
542 static const struct regulator_desc act8865_alt_regulators[] = {
543         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
544         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
545         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
546         ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
547         ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
548         ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
549         ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
550 };
551
552 #ifdef CONFIG_OF
553 static const struct of_device_id act8865_dt_ids[] = {
554         { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
555         { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
556         { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
557         { }
558 };
559 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
560 #endif
561
562 static struct act8865_regulator_data *act8865_get_regulator_data(
563                 int id, struct act8865_platform_data *pdata)
564 {
565         int i;
566
567         for (i = 0; i < pdata->num_regulators; i++) {
568                 if (pdata->regulators[i].id == id)
569                         return &pdata->regulators[i];
570         }
571
572         return NULL;
573 }
574
575 static struct i2c_client *act8865_i2c_client;
576 static void act8865_power_off(void)
577 {
578         struct act8865 *act8865;
579
580         act8865 = i2c_get_clientdata(act8865_i2c_client);
581         regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
582         while (1);
583 }
584
585 static int act8600_charger_get_status(struct regmap *map)
586 {
587         unsigned int val;
588         int ret;
589         u8 state0, state1;
590
591         ret = regmap_read(map, ACT8600_APCH_STAT, &val);
592         if (ret < 0)
593                 return ret;
594
595         state0 = val & ACT8600_APCH_CSTATE0;
596         state1 = val & ACT8600_APCH_CSTATE1;
597
598         if (state0 && !state1)
599                 return POWER_SUPPLY_STATUS_CHARGING;
600         if (!state0 && state1)
601                 return POWER_SUPPLY_STATUS_NOT_CHARGING;
602         if (!state0 && !state1)
603                 return POWER_SUPPLY_STATUS_DISCHARGING;
604
605         return POWER_SUPPLY_STATUS_UNKNOWN;
606 }
607
608 static int act8600_charger_get_property(struct power_supply *psy,
609                 enum power_supply_property psp, union power_supply_propval *val)
610 {
611         struct regmap *map = power_supply_get_drvdata(psy);
612         int ret;
613
614         switch (psp) {
615         case POWER_SUPPLY_PROP_STATUS:
616                 ret = act8600_charger_get_status(map);
617                 if (ret < 0)
618                         return ret;
619
620                 val->intval = ret;
621                 break;
622         default:
623                 return -EINVAL;
624         }
625
626         return 0;
627 }
628
629 static enum power_supply_property act8600_charger_properties[] = {
630         POWER_SUPPLY_PROP_STATUS,
631 };
632
633 static const struct power_supply_desc act8600_charger_desc = {
634         .name = "act8600-charger",
635         .type = POWER_SUPPLY_TYPE_BATTERY,
636         .properties = act8600_charger_properties,
637         .num_properties = ARRAY_SIZE(act8600_charger_properties),
638         .get_property = act8600_charger_get_property,
639 };
640
641 static int act8600_charger_probe(struct device *dev, struct regmap *regmap)
642 {
643         struct power_supply *charger;
644         struct power_supply_config cfg = {
645                 .drv_data = regmap,
646                 .of_node = dev->of_node,
647         };
648
649         charger = devm_power_supply_register(dev, &act8600_charger_desc, &cfg);
650
651         return PTR_ERR_OR_ZERO(charger);
652 }
653
654 static int act8865_pmic_probe(struct i2c_client *client,
655                               const struct i2c_device_id *i2c_id)
656 {
657         const struct regulator_desc *regulators;
658         struct act8865_platform_data *pdata = NULL;
659         struct device *dev = &client->dev;
660         int i, ret, num_regulators;
661         struct act8865 *act8865;
662         const struct regmap_config *regmap_config;
663         unsigned long type;
664         int off_reg, off_mask;
665         int voltage_select = 0;
666
667         if (dev->of_node) {
668                 const struct of_device_id *id;
669
670                 id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
671                 if (!id)
672                         return -ENODEV;
673
674                 type = (unsigned long) id->data;
675
676                 voltage_select = !!of_get_property(dev->of_node,
677                                                    "active-semi,vsel-high",
678                                                    NULL);
679         } else {
680                 type = i2c_id->driver_data;
681                 pdata = dev_get_platdata(dev);
682         }
683
684         switch (type) {
685         case ACT8600:
686                 regulators = act8600_regulators;
687                 num_regulators = ARRAY_SIZE(act8600_regulators);
688                 regmap_config = &act8600_regmap_config;
689                 off_reg = -1;
690                 off_mask = -1;
691                 break;
692         case ACT8846:
693                 regulators = act8846_regulators;
694                 num_regulators = ARRAY_SIZE(act8846_regulators);
695                 regmap_config = &act8865_regmap_config;
696                 off_reg = ACT8846_GLB_OFF_CTRL;
697                 off_mask = ACT8846_OFF_SYSMASK;
698                 break;
699         case ACT8865:
700                 if (voltage_select) {
701                         regulators = act8865_alt_regulators;
702                         num_regulators = ARRAY_SIZE(act8865_alt_regulators);
703                 } else {
704                         regulators = act8865_regulators;
705                         num_regulators = ARRAY_SIZE(act8865_regulators);
706                 }
707                 regmap_config = &act8865_regmap_config;
708                 off_reg = ACT8865_SYS_CTRL;
709                 off_mask = ACT8865_MSTROFF;
710                 break;
711         default:
712                 dev_err(dev, "invalid device id %lu\n", type);
713                 return -EINVAL;
714         }
715
716         act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
717         if (!act8865)
718                 return -ENOMEM;
719
720         act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
721         if (IS_ERR(act8865->regmap)) {
722                 ret = PTR_ERR(act8865->regmap);
723                 dev_err(dev, "Failed to allocate register map: %d\n", ret);
724                 return ret;
725         }
726
727         if (of_device_is_system_power_controller(dev->of_node)) {
728                 if (!pm_power_off && (off_reg > 0)) {
729                         act8865_i2c_client = client;
730                         act8865->off_reg = off_reg;
731                         act8865->off_mask = off_mask;
732                         pm_power_off = act8865_power_off;
733                 } else {
734                         dev_err(dev, "Failed to set poweroff capability, already defined\n");
735                 }
736         }
737
738         /* Finally register devices */
739         for (i = 0; i < num_regulators; i++) {
740                 const struct regulator_desc *desc = &regulators[i];
741                 struct regulator_config config = { };
742                 struct regulator_dev *rdev;
743
744                 config.dev = dev;
745                 config.driver_data = act8865;
746                 config.regmap = act8865->regmap;
747
748                 if (pdata) {
749                         struct act8865_regulator_data *rdata;
750
751                         rdata = act8865_get_regulator_data(desc->id, pdata);
752                         if (rdata) {
753                                 config.init_data = rdata->init_data;
754                                 config.of_node = rdata->of_node;
755                         }
756                 }
757
758                 rdev = devm_regulator_register(dev, desc, &config);
759                 if (IS_ERR(rdev)) {
760                         dev_err(dev, "failed to register %s\n", desc->name);
761                         return PTR_ERR(rdev);
762                 }
763         }
764
765         if (type == ACT8600) {
766                 ret = act8600_charger_probe(dev, act8865->regmap);
767                 if (ret < 0) {
768                         if (ret != -EPROBE_DEFER)
769                                 dev_err(dev, "Failed to probe charger");
770                         return ret;
771                 }
772         }
773
774         i2c_set_clientdata(client, act8865);
775
776         /* Unlock expert registers for ACT8865. */
777         return type != ACT8865 ? 0 : regmap_write(act8865->regmap,
778                                                   ACT8865_SYS_UNLK_REGS, 0xef);
779 }
780
781 static const struct i2c_device_id act8865_ids[] = {
782         { .name = "act8600", .driver_data = ACT8600 },
783         { .name = "act8846", .driver_data = ACT8846 },
784         { .name = "act8865", .driver_data = ACT8865 },
785         { },
786 };
787 MODULE_DEVICE_TABLE(i2c, act8865_ids);
788
789 static struct i2c_driver act8865_pmic_driver = {
790         .driver = {
791                 .name   = "act8865",
792         },
793         .probe          = act8865_pmic_probe,
794         .id_table       = act8865_ids,
795 };
796
797 module_i2c_driver(act8865_pmic_driver);
798
799 MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
800 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
801 MODULE_LICENSE("GPL v2");