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1// SPDX-License-Identifier: GPL-2.0
2//
3// Copyright (c) 2019 MediaTek Inc.
4
5#include <linux/mfd/mt6358/registers.h>
6#include <linux/mfd/mt6397/core.h>
7#include <linux/module.h>
8#include <linux/of.h>
9#include <linux/platform_device.h>
10#include <linux/regmap.h>
11#include <linux/regulator/driver.h>
12#include <linux/regulator/machine.h>
13#include <linux/regulator/mt6358-regulator.h>
14#include <linux/regulator/of_regulator.h>
15
16#define MT6358_BUCK_MODE_AUTO 0
17#define MT6358_BUCK_MODE_FORCE_PWM 1
18
19/*
20 * MT6358 regulators' information
21 *
22 * @desc: standard fields of regulator description.
23 * @qi: Mask for query enable signal status of regulators
24 */
25struct mt6358_regulator_info {
26 struct regulator_desc desc;
27 u32 status_reg;
28 u32 qi;
29 const u32 *index_table;
30 unsigned int n_table;
31 u32 da_vsel_reg;
32 u32 da_vsel_mask;
33 u32 modeset_reg;
34 u32 modeset_mask;
35};
36
37#define MT6358_BUCK(match, vreg, min, max, step, \
38 volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \
39 _modeset_reg, _modeset_shift) \
40[MT6358_ID_##vreg] = { \
41 .desc = { \
42 .name = #vreg, \
43 .of_match = of_match_ptr(match), \
44 .ops = &mt6358_volt_range_ops, \
45 .type = REGULATOR_VOLTAGE, \
46 .id = MT6358_ID_##vreg, \
47 .owner = THIS_MODULE, \
48 .n_voltages = ((max) - (min)) / (step) + 1, \
49 .linear_ranges = volt_ranges, \
50 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
51 .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
52 .vsel_mask = vosel_mask, \
53 .enable_reg = MT6358_BUCK_##vreg##_CON0, \
54 .enable_mask = BIT(0), \
55 .of_map_mode = mt6358_map_mode, \
56 }, \
57 .status_reg = MT6358_BUCK_##vreg##_DBG1, \
58 .qi = BIT(0), \
59 .da_vsel_reg = _da_vsel_reg, \
60 .da_vsel_mask = _da_vsel_mask, \
61 .modeset_reg = _modeset_reg, \
62 .modeset_mask = BIT(_modeset_shift), \
63}
64
65#define MT6358_LDO(match, vreg, ldo_volt_table, \
66 ldo_index_table, enreg, enbit, vosel, \
67 vosel_mask) \
68[MT6358_ID_##vreg] = { \
69 .desc = { \
70 .name = #vreg, \
71 .of_match = of_match_ptr(match), \
72 .ops = &mt6358_volt_table_ops, \
73 .type = REGULATOR_VOLTAGE, \
74 .id = MT6358_ID_##vreg, \
75 .owner = THIS_MODULE, \
76 .n_voltages = ARRAY_SIZE(ldo_volt_table), \
77 .volt_table = ldo_volt_table, \
78 .vsel_reg = vosel, \
79 .vsel_mask = vosel_mask, \
80 .enable_reg = enreg, \
81 .enable_mask = BIT(enbit), \
82 }, \
83 .status_reg = MT6358_LDO_##vreg##_CON1, \
84 .qi = BIT(15), \
85 .index_table = ldo_index_table, \
86 .n_table = ARRAY_SIZE(ldo_index_table), \
87}
88
89#define MT6358_LDO1(match, vreg, min, max, step, \
90 volt_ranges, _da_vsel_reg, _da_vsel_mask, \
91 vosel, vosel_mask) \
92[MT6358_ID_##vreg] = { \
93 .desc = { \
94 .name = #vreg, \
95 .of_match = of_match_ptr(match), \
96 .ops = &mt6358_volt_range_ops, \
97 .type = REGULATOR_VOLTAGE, \
98 .id = MT6358_ID_##vreg, \
99 .owner = THIS_MODULE, \
100 .n_voltages = ((max) - (min)) / (step) + 1, \
101 .linear_ranges = volt_ranges, \
102 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
103 .vsel_reg = vosel, \
104 .vsel_mask = vosel_mask, \
105 .enable_reg = MT6358_LDO_##vreg##_CON0, \
106 .enable_mask = BIT(0), \
107 }, \
108 .da_vsel_reg = _da_vsel_reg, \
109 .da_vsel_mask = _da_vsel_mask, \
110 .status_reg = MT6358_LDO_##vreg##_DBG1, \
111 .qi = BIT(0), \
112}
113
114#define MT6358_REG_FIXED(match, vreg, \
115 enreg, enbit, volt) \
116[MT6358_ID_##vreg] = { \
117 .desc = { \
118 .name = #vreg, \
119 .of_match = of_match_ptr(match), \
120 .ops = &mt6358_volt_fixed_ops, \
121 .type = REGULATOR_VOLTAGE, \
122 .id = MT6358_ID_##vreg, \
123 .owner = THIS_MODULE, \
124 .n_voltages = 1, \
125 .enable_reg = enreg, \
126 .enable_mask = BIT(enbit), \
127 .min_uV = volt, \
128 }, \
129 .status_reg = MT6358_LDO_##vreg##_CON1, \
130 .qi = BIT(15), \
131}
132
133#define MT6366_BUCK(match, vreg, min, max, step, \
134 volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \
135 _modeset_reg, _modeset_shift) \
136[MT6366_ID_##vreg] = { \
137 .desc = { \
138 .name = #vreg, \
139 .of_match = of_match_ptr(match), \
140 .ops = &mt6358_volt_range_ops, \
141 .type = REGULATOR_VOLTAGE, \
142 .id = MT6366_ID_##vreg, \
143 .owner = THIS_MODULE, \
144 .n_voltages = ((max) - (min)) / (step) + 1, \
145 .linear_ranges = volt_ranges, \
146 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
147 .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
148 .vsel_mask = vosel_mask, \
149 .enable_reg = MT6358_BUCK_##vreg##_CON0, \
150 .enable_mask = BIT(0), \
151 .of_map_mode = mt6358_map_mode, \
152 }, \
153 .status_reg = MT6358_BUCK_##vreg##_DBG1, \
154 .qi = BIT(0), \
155 .da_vsel_reg = _da_vsel_reg, \
156 .da_vsel_mask = _da_vsel_mask, \
157 .modeset_reg = _modeset_reg, \
158 .modeset_mask = BIT(_modeset_shift), \
159}
160
161#define MT6366_LDO(match, vreg, ldo_volt_table, \
162 ldo_index_table, enreg, enbit, vosel, \
163 vosel_mask) \
164[MT6366_ID_##vreg] = { \
165 .desc = { \
166 .name = #vreg, \
167 .of_match = of_match_ptr(match), \
168 .ops = &mt6358_volt_table_ops, \
169 .type = REGULATOR_VOLTAGE, \
170 .id = MT6366_ID_##vreg, \
171 .owner = THIS_MODULE, \
172 .n_voltages = ARRAY_SIZE(ldo_volt_table), \
173 .volt_table = ldo_volt_table, \
174 .vsel_reg = vosel, \
175 .vsel_mask = vosel_mask, \
176 .enable_reg = enreg, \
177 .enable_mask = BIT(enbit), \
178 }, \
179 .status_reg = MT6358_LDO_##vreg##_CON1, \
180 .qi = BIT(15), \
181 .index_table = ldo_index_table, \
182 .n_table = ARRAY_SIZE(ldo_index_table), \
183}
184
185#define MT6366_LDO1(match, vreg, min, max, step, \
186 volt_ranges, _da_vsel_reg, _da_vsel_mask, \
187 vosel, vosel_mask) \
188[MT6366_ID_##vreg] = { \
189 .desc = { \
190 .name = #vreg, \
191 .of_match = of_match_ptr(match), \
192 .ops = &mt6358_volt_range_ops, \
193 .type = REGULATOR_VOLTAGE, \
194 .id = MT6366_ID_##vreg, \
195 .owner = THIS_MODULE, \
196 .n_voltages = ((max) - (min)) / (step) + 1, \
197 .linear_ranges = volt_ranges, \
198 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
199 .vsel_reg = vosel, \
200 .vsel_mask = vosel_mask, \
201 .enable_reg = MT6358_LDO_##vreg##_CON0, \
202 .enable_mask = BIT(0), \
203 }, \
204 .da_vsel_reg = _da_vsel_reg, \
205 .da_vsel_mask = _da_vsel_mask, \
206 .status_reg = MT6358_LDO_##vreg##_DBG1, \
207 .qi = BIT(0), \
208}
209
210#define MT6366_REG_FIXED(match, vreg, \
211 enreg, enbit, volt) \
212[MT6366_ID_##vreg] = { \
213 .desc = { \
214 .name = #vreg, \
215 .of_match = of_match_ptr(match), \
216 .ops = &mt6358_volt_fixed_ops, \
217 .type = REGULATOR_VOLTAGE, \
218 .id = MT6366_ID_##vreg, \
219 .owner = THIS_MODULE, \
220 .n_voltages = 1, \
221 .enable_reg = enreg, \
222 .enable_mask = BIT(enbit), \
223 .min_uV = volt, \
224 }, \
225 .status_reg = MT6358_LDO_##vreg##_CON1, \
226 .qi = BIT(15), \
227}
228
229static const struct linear_range buck_volt_range1[] = {
230 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
231};
232
233static const struct linear_range buck_volt_range2[] = {
234 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500),
235};
236
237static const struct linear_range buck_volt_range3[] = {
238 REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
239};
240
241static const struct linear_range buck_volt_range4[] = {
242 REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500),
243};
244
245static const unsigned int vdram2_voltages[] = {
246 600000, 1800000,
247};
248
249static const unsigned int vsim_voltages[] = {
250 1700000, 1800000, 2700000, 3000000, 3100000,
251};
252
253static const unsigned int vibr_voltages[] = {
254 1200000, 1300000, 1500000, 1800000,
255 2000000, 2800000, 3000000, 3300000,
256};
257
258static const unsigned int vusb_voltages[] = {
259 3000000, 3100000,
260};
261
262static const unsigned int vcamd_voltages[] = {
263 900000, 1000000, 1100000, 1200000,
264 1300000, 1500000, 1800000,
265};
266
267static const unsigned int vefuse_voltages[] = {
268 1700000, 1800000, 1900000,
269};
270
271static const unsigned int vmch_vemc_voltages[] = {
272 2900000, 3000000, 3300000,
273};
274
275static const unsigned int vcama_voltages[] = {
276 1800000, 2500000, 2700000,
277 2800000, 2900000, 3000000,
278};
279
280static const unsigned int vcn33_bt_wifi_voltages[] = {
281 3300000, 3400000, 3500000,
282};
283
284static const unsigned int vmc_voltages[] = {
285 1800000, 2900000, 3000000, 3300000,
286};
287
288static const unsigned int vldo28_voltages[] = {
289 2800000, 3000000,
290};
291
292static const u32 vdram2_idx[] = {
293 0, 12,
294};
295
296static const u32 vsim_idx[] = {
297 3, 4, 8, 11, 12,
298};
299
300static const u32 vibr_idx[] = {
301 0, 1, 2, 4, 5, 9, 11, 13,
302};
303
304static const u32 vusb_idx[] = {
305 3, 4,
306};
307
308static const u32 vcamd_idx[] = {
309 3, 4, 5, 6, 7, 9, 12,
310};
311
312static const u32 vefuse_idx[] = {
313 11, 12, 13,
314};
315
316static const u32 vmch_vemc_idx[] = {
317 2, 3, 5,
318};
319
320static const u32 vcama_idx[] = {
321 0, 7, 9, 10, 11, 12,
322};
323
324static const u32 vcn33_bt_wifi_idx[] = {
325 1, 2, 3,
326};
327
328static const u32 vmc_idx[] = {
329 4, 10, 11, 13,
330};
331
332static const u32 vldo28_idx[] = {
333 1, 3,
334};
335
336static unsigned int mt6358_map_mode(unsigned int mode)
337{
338 return mode == MT6358_BUCK_MODE_AUTO ?
339 REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;
340}
341
342static int mt6358_set_voltage_sel(struct regulator_dev *rdev,
343 unsigned int selector)
344{
345 int idx, ret;
346 const u32 *pvol;
347 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
348
349 pvol = info->index_table;
350
351 idx = pvol[selector];
352 idx <<= ffs(info->desc.vsel_mask) - 1;
353 ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg,
354 info->desc.vsel_mask, idx);
355
356 return ret;
357}
358
359static int mt6358_get_voltage_sel(struct regulator_dev *rdev)
360{
361 int idx, ret;
362 u32 selector;
363 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
364 const u32 *pvol;
365
366 ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector);
367 if (ret != 0) {
368 dev_info(&rdev->dev,
369 "Failed to get mt6358 %s vsel reg: %d\n",
370 info->desc.name, ret);
371 return ret;
372 }
373
374 selector = (selector & info->desc.vsel_mask) >>
375 (ffs(info->desc.vsel_mask) - 1);
376 pvol = info->index_table;
377 for (idx = 0; idx < info->desc.n_voltages; idx++) {
378 if (pvol[idx] == selector)
379 return idx;
380 }
381
382 return -EINVAL;
383}
384
385static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)
386{
387 int ret, regval;
388 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
389
390 ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val);
391 if (ret != 0) {
392 dev_err(&rdev->dev,
393 "Failed to get mt6358 Buck %s vsel reg: %d\n",
394 info->desc.name, ret);
395 return ret;
396 }
397
398 ret = (regval & info->da_vsel_mask) >> (ffs(info->da_vsel_mask) - 1);
399
400 return ret;
401}
402
403static int mt6358_get_status(struct regulator_dev *rdev)
404{
405 int ret;
406 u32 regval;
407 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
408
409 ret = regmap_read(rdev->regmap, info->status_reg, ®val);
410 if (ret != 0) {
411 dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);
412 return ret;
413 }
414
415 return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
416}
417
418static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
419 unsigned int mode)
420{
421 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
422 int val;
423
424 switch (mode) {
425 case REGULATOR_MODE_FAST:
426 val = MT6358_BUCK_MODE_FORCE_PWM;
427 break;
428 case REGULATOR_MODE_NORMAL:
429 val = MT6358_BUCK_MODE_AUTO;
430 break;
431 default:
432 return -EINVAL;
433 }
434
435 dev_dbg(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x\n",
436 info->modeset_reg, info->modeset_mask, val);
437
438 val <<= ffs(info->modeset_mask) - 1;
439
440 return regmap_update_bits(rdev->regmap, info->modeset_reg,
441 info->modeset_mask, val);
442}
443
444static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
445{
446 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
447 int ret, regval;
448
449 ret = regmap_read(rdev->regmap, info->modeset_reg, ®val);
450 if (ret != 0) {
451 dev_err(&rdev->dev,
452 "Failed to get mt6358 buck mode: %d\n", ret);
453 return ret;
454 }
455
456 switch ((regval & info->modeset_mask) >> (ffs(info->modeset_mask) - 1)) {
457 case MT6358_BUCK_MODE_AUTO:
458 return REGULATOR_MODE_NORMAL;
459 case MT6358_BUCK_MODE_FORCE_PWM:
460 return REGULATOR_MODE_FAST;
461 default:
462 return -EINVAL;
463 }
464}
465
466static const struct regulator_ops mt6358_volt_range_ops = {
467 .list_voltage = regulator_list_voltage_linear_range,
468 .map_voltage = regulator_map_voltage_linear_range,
469 .set_voltage_sel = regulator_set_voltage_sel_regmap,
470 .get_voltage_sel = mt6358_get_buck_voltage_sel,
471 .set_voltage_time_sel = regulator_set_voltage_time_sel,
472 .enable = regulator_enable_regmap,
473 .disable = regulator_disable_regmap,
474 .is_enabled = regulator_is_enabled_regmap,
475 .get_status = mt6358_get_status,
476 .set_mode = mt6358_regulator_set_mode,
477 .get_mode = mt6358_regulator_get_mode,
478};
479
480static const struct regulator_ops mt6358_volt_table_ops = {
481 .list_voltage = regulator_list_voltage_table,
482 .map_voltage = regulator_map_voltage_iterate,
483 .set_voltage_sel = mt6358_set_voltage_sel,
484 .get_voltage_sel = mt6358_get_voltage_sel,
485 .set_voltage_time_sel = regulator_set_voltage_time_sel,
486 .enable = regulator_enable_regmap,
487 .disable = regulator_disable_regmap,
488 .is_enabled = regulator_is_enabled_regmap,
489 .get_status = mt6358_get_status,
490};
491
492static const struct regulator_ops mt6358_volt_fixed_ops = {
493 .list_voltage = regulator_list_voltage_linear,
494 .enable = regulator_enable_regmap,
495 .disable = regulator_disable_regmap,
496 .is_enabled = regulator_is_enabled_regmap,
497 .get_status = mt6358_get_status,
498};
499
500/* The array is indexed by id(MT6358_ID_XXX) */
501static struct mt6358_regulator_info mt6358_regulators[] = {
502 MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
503 buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f,
504 MT6358_VDRAM1_ANA_CON0, 8),
505 MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
506 buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f,
507 MT6358_VCORE_VGPU_ANA_CON0, 1),
508 MT6358_BUCK("buck_vcore_sshub", VCORE_SSHUB, 500000, 1293750, 6250,
509 buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_SSHUB_ELR0, 0x7f,
510 MT6358_VCORE_VGPU_ANA_CON0, 1),
511 MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
512 buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f,
513 MT6358_VPA_ANA_CON0, 3),
514 MT6358_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
515 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f,
516 MT6358_VPROC_ANA_CON0, 1),
517 MT6358_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
518 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f,
519 MT6358_VPROC_ANA_CON0, 2),
520 MT6358_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
521 buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f,
522 MT6358_VCORE_VGPU_ANA_CON0, 2),
523 MT6358_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
524 buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f,
525 MT6358_VS2_ANA_CON0, 8),
526 MT6358_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
527 buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f,
528 MT6358_VMODEM_ANA_CON0, 8),
529 MT6358_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
530 buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f,
531 MT6358_VS1_ANA_CON0, 8),
532 MT6358_REG_FIXED("ldo_vrf12", VRF12,
533 MT6358_LDO_VRF12_CON0, 0, 1200000),
534 MT6358_REG_FIXED("ldo_vio18", VIO18,
535 MT6358_LDO_VIO18_CON0, 0, 1800000),
536 MT6358_REG_FIXED("ldo_vcamio", VCAMIO,
537 MT6358_LDO_VCAMIO_CON0, 0, 1800000),
538 MT6358_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),
539 MT6358_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),
540 MT6358_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),
541 MT6358_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),
542 MT6358_REG_FIXED("ldo_vaux18", VAUX18,
543 MT6358_LDO_VAUX18_CON0, 0, 1800000),
544 MT6358_REG_FIXED("ldo_vbif28", VBIF28,
545 MT6358_LDO_VBIF28_CON0, 0, 2800000),
546 MT6358_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),
547 MT6358_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),
548 MT6358_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),
549 MT6358_REG_FIXED("ldo_vaud28", VAUD28,
550 MT6358_LDO_VAUD28_CON0, 0, 2800000),
551 MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
552 MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf),
553 MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
554 MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
555 MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
556 MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
557 MT6358_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,
558 MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
559 MT6358_LDO("ldo_vcamd", VCAMD, vcamd_voltages, vcamd_idx,
560 MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00),
561 MT6358_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,
562 MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
563 MT6358_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,
564 MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
565 MT6358_LDO("ldo_vcama1", VCAMA1, vcama_voltages, vcama_idx,
566 MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00),
567 MT6358_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,
568 MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
569 MT6358_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages,
570 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0,
571 0, MT6358_VCN33_ANA_CON0, 0x300),
572 MT6358_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages,
573 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1,
574 0, MT6358_VCN33_ANA_CON0, 0x300),
575 MT6358_LDO("ldo_vcama2", VCAMA2, vcama_voltages, vcama_idx,
576 MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00),
577 MT6358_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,
578 MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
579 MT6358_LDO("ldo_vldo28", VLDO28, vldo28_voltages, vldo28_idx,
580 MT6358_LDO_VLDO28_CON0_0, 0,
581 MT6358_VLDO28_ANA_CON0, 0x300),
582 MT6358_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,
583 MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
584 MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
585 buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00,
586 MT6358_LDO_VSRAM_CON0, 0x7f),
587 MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
588 buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00,
589 MT6358_LDO_VSRAM_CON2, 0x7f),
590 MT6358_LDO1("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB, 500000,
591 1293750, 6250, buck_volt_range1,
592 MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f,
593 MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f),
594 MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
595 buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00,
596 MT6358_LDO_VSRAM_CON3, 0x7f),
597 MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
598 buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00,
599 MT6358_LDO_VSRAM_CON1, 0x7f),
600};
601
602/* The array is indexed by id(MT6366_ID_XXX) */
603static struct mt6358_regulator_info mt6366_regulators[] = {
604 MT6366_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
605 buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f,
606 MT6358_VDRAM1_ANA_CON0, 8),
607 MT6366_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
608 buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f,
609 MT6358_VCORE_VGPU_ANA_CON0, 1),
610 MT6366_BUCK("buck_vcore_sshub", VCORE_SSHUB, 500000, 1293750, 6250,
611 buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_SSHUB_ELR0, 0x7f,
612 MT6358_VCORE_VGPU_ANA_CON0, 1),
613 MT6366_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
614 buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f,
615 MT6358_VPA_ANA_CON0, 3),
616 MT6366_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
617 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f,
618 MT6358_VPROC_ANA_CON0, 1),
619 MT6366_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
620 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f,
621 MT6358_VPROC_ANA_CON0, 2),
622 MT6366_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
623 buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f,
624 MT6358_VCORE_VGPU_ANA_CON0, 2),
625 MT6366_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
626 buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f,
627 MT6358_VS2_ANA_CON0, 8),
628 MT6366_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
629 buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f,
630 MT6358_VMODEM_ANA_CON0, 8),
631 MT6366_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
632 buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f,
633 MT6358_VS1_ANA_CON0, 8),
634 MT6366_REG_FIXED("ldo_vrf12", VRF12,
635 MT6358_LDO_VRF12_CON0, 0, 1200000),
636 MT6366_REG_FIXED("ldo_vio18", VIO18,
637 MT6358_LDO_VIO18_CON0, 0, 1800000),
638 MT6366_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),
639 MT6366_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),
640 MT6366_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),
641 MT6366_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),
642 MT6366_REG_FIXED("ldo_vaux18", VAUX18,
643 MT6358_LDO_VAUX18_CON0, 0, 1800000),
644 MT6366_REG_FIXED("ldo_vbif28", VBIF28,
645 MT6358_LDO_VBIF28_CON0, 0, 2800000),
646 MT6366_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),
647 MT6366_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),
648 MT6366_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),
649 MT6366_REG_FIXED("ldo_vaud28", VAUD28,
650 MT6358_LDO_VAUD28_CON0, 0, 2800000),
651 MT6366_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
652 MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10),
653 MT6366_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
654 MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
655 MT6366_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
656 MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
657 MT6366_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,
658 MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
659 MT6366_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,
660 MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
661 MT6366_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,
662 MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
663 MT6366_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,
664 MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
665 MT6366_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages,
666 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0,
667 0, MT6358_VCN33_ANA_CON0, 0x300),
668 MT6366_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages,
669 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1,
670 0, MT6358_VCN33_ANA_CON0, 0x300),
671 MT6366_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,
672 MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
673 MT6366_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,
674 MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
675 MT6366_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
676 buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00,
677 MT6358_LDO_VSRAM_CON0, 0x7f),
678 MT6366_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
679 buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00,
680 MT6358_LDO_VSRAM_CON2, 0x7f),
681 MT6366_LDO1("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB, 500000,
682 1293750, 6250, buck_volt_range1,
683 MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f,
684 MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f),
685 MT6366_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
686 buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00,
687 MT6358_LDO_VSRAM_CON3, 0x7f),
688 MT6366_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
689 buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00,
690 MT6358_LDO_VSRAM_CON1, 0x7f),
691};
692
693static int mt6358_regulator_probe(struct platform_device *pdev)
694{
695 struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
696 struct regulator_config config = {};
697 struct regulator_dev *rdev;
698 struct mt6358_regulator_info *mt6358_info;
699 int i, max_regulator;
700
701 if (mt6397->chip_id == MT6366_CHIP_ID) {
702 max_regulator = MT6366_MAX_REGULATOR;
703 mt6358_info = mt6366_regulators;
704 } else {
705 max_regulator = MT6358_MAX_REGULATOR;
706 mt6358_info = mt6358_regulators;
707 }
708
709 for (i = 0; i < max_regulator; i++) {
710 config.dev = &pdev->dev;
711 config.driver_data = &mt6358_info[i];
712 config.regmap = mt6397->regmap;
713
714 rdev = devm_regulator_register(&pdev->dev,
715 &mt6358_info[i].desc,
716 &config);
717 if (IS_ERR(rdev)) {
718 dev_err(&pdev->dev, "failed to register %s\n",
719 mt6358_info[i].desc.name);
720 return PTR_ERR(rdev);
721 }
722 }
723
724 return 0;
725}
726
727static const struct platform_device_id mt6358_platform_ids[] = {
728 {"mt6358-regulator", 0},
729 { /* sentinel */ },
730};
731MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
732
733static struct platform_driver mt6358_regulator_driver = {
734 .driver = {
735 .name = "mt6358-regulator",
736 },
737 .probe = mt6358_regulator_probe,
738 .id_table = mt6358_platform_ids,
739};
740
741module_platform_driver(mt6358_regulator_driver);
742
743MODULE_AUTHOR("Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>");
744MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
745MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0
2//
3// Copyright (c) 2019 MediaTek Inc.
4
5#include <linux/mfd/mt6358/registers.h>
6#include <linux/mfd/mt6397/core.h>
7#include <linux/module.h>
8#include <linux/of.h>
9#include <linux/platform_device.h>
10#include <linux/regmap.h>
11#include <linux/regulator/driver.h>
12#include <linux/regulator/machine.h>
13#include <linux/regulator/mt6358-regulator.h>
14#include <linux/regulator/of_regulator.h>
15
16#define MT6358_BUCK_MODE_AUTO 0
17#define MT6358_BUCK_MODE_FORCE_PWM 1
18
19/*
20 * MT6358 regulators' information
21 *
22 * @desc: standard fields of regulator description.
23 * @qi: Mask for query enable signal status of regulators
24 */
25struct mt6358_regulator_info {
26 struct regulator_desc desc;
27 u32 status_reg;
28 u32 qi;
29 const u32 *index_table;
30 unsigned int n_table;
31 u32 vsel_shift;
32 u32 da_vsel_reg;
33 u32 da_vsel_mask;
34 u32 da_vsel_shift;
35 u32 modeset_reg;
36 u32 modeset_mask;
37 u32 modeset_shift;
38};
39
40#define MT6358_BUCK(match, vreg, min, max, step, \
41 volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \
42 _da_vsel_shift, _modeset_reg, _modeset_shift) \
43[MT6358_ID_##vreg] = { \
44 .desc = { \
45 .name = #vreg, \
46 .of_match = of_match_ptr(match), \
47 .ops = &mt6358_volt_range_ops, \
48 .type = REGULATOR_VOLTAGE, \
49 .id = MT6358_ID_##vreg, \
50 .owner = THIS_MODULE, \
51 .n_voltages = ((max) - (min)) / (step) + 1, \
52 .linear_ranges = volt_ranges, \
53 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
54 .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
55 .vsel_mask = vosel_mask, \
56 .enable_reg = MT6358_BUCK_##vreg##_CON0, \
57 .enable_mask = BIT(0), \
58 .of_map_mode = mt6358_map_mode, \
59 }, \
60 .status_reg = MT6358_BUCK_##vreg##_DBG1, \
61 .qi = BIT(0), \
62 .da_vsel_reg = _da_vsel_reg, \
63 .da_vsel_mask = _da_vsel_mask, \
64 .da_vsel_shift = _da_vsel_shift, \
65 .modeset_reg = _modeset_reg, \
66 .modeset_mask = BIT(_modeset_shift), \
67 .modeset_shift = _modeset_shift \
68}
69
70#define MT6358_LDO(match, vreg, ldo_volt_table, \
71 ldo_index_table, enreg, enbit, vosel, \
72 vosel_mask, vosel_shift) \
73[MT6358_ID_##vreg] = { \
74 .desc = { \
75 .name = #vreg, \
76 .of_match = of_match_ptr(match), \
77 .ops = &mt6358_volt_table_ops, \
78 .type = REGULATOR_VOLTAGE, \
79 .id = MT6358_ID_##vreg, \
80 .owner = THIS_MODULE, \
81 .n_voltages = ARRAY_SIZE(ldo_volt_table), \
82 .volt_table = ldo_volt_table, \
83 .vsel_reg = vosel, \
84 .vsel_mask = vosel_mask, \
85 .enable_reg = enreg, \
86 .enable_mask = BIT(enbit), \
87 }, \
88 .status_reg = MT6358_LDO_##vreg##_CON1, \
89 .qi = BIT(15), \
90 .index_table = ldo_index_table, \
91 .n_table = ARRAY_SIZE(ldo_index_table), \
92 .vsel_shift = vosel_shift, \
93}
94
95#define MT6358_LDO1(match, vreg, min, max, step, \
96 volt_ranges, _da_vsel_reg, _da_vsel_mask, \
97 _da_vsel_shift, vosel, vosel_mask) \
98[MT6358_ID_##vreg] = { \
99 .desc = { \
100 .name = #vreg, \
101 .of_match = of_match_ptr(match), \
102 .ops = &mt6358_volt_range_ops, \
103 .type = REGULATOR_VOLTAGE, \
104 .id = MT6358_ID_##vreg, \
105 .owner = THIS_MODULE, \
106 .n_voltages = ((max) - (min)) / (step) + 1, \
107 .linear_ranges = volt_ranges, \
108 .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
109 .vsel_reg = vosel, \
110 .vsel_mask = vosel_mask, \
111 .enable_reg = MT6358_LDO_##vreg##_CON0, \
112 .enable_mask = BIT(0), \
113 }, \
114 .da_vsel_reg = _da_vsel_reg, \
115 .da_vsel_mask = _da_vsel_mask, \
116 .da_vsel_shift = _da_vsel_shift, \
117 .status_reg = MT6358_LDO_##vreg##_DBG1, \
118 .qi = BIT(0), \
119}
120
121#define MT6358_REG_FIXED(match, vreg, \
122 enreg, enbit, volt) \
123[MT6358_ID_##vreg] = { \
124 .desc = { \
125 .name = #vreg, \
126 .of_match = of_match_ptr(match), \
127 .ops = &mt6358_volt_fixed_ops, \
128 .type = REGULATOR_VOLTAGE, \
129 .id = MT6358_ID_##vreg, \
130 .owner = THIS_MODULE, \
131 .n_voltages = 1, \
132 .enable_reg = enreg, \
133 .enable_mask = BIT(enbit), \
134 .min_uV = volt, \
135 }, \
136 .status_reg = MT6358_LDO_##vreg##_CON1, \
137 .qi = BIT(15), \
138}
139
140static const struct linear_range buck_volt_range1[] = {
141 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
142};
143
144static const struct linear_range buck_volt_range2[] = {
145 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500),
146};
147
148static const struct linear_range buck_volt_range3[] = {
149 REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
150};
151
152static const struct linear_range buck_volt_range4[] = {
153 REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500),
154};
155
156static const u32 vdram2_voltages[] = {
157 600000, 1800000,
158};
159
160static const u32 vsim_voltages[] = {
161 1700000, 1800000, 2700000, 3000000, 3100000,
162};
163
164static const u32 vibr_voltages[] = {
165 1200000, 1300000, 1500000, 1800000,
166 2000000, 2800000, 3000000, 3300000,
167};
168
169static const u32 vusb_voltages[] = {
170 3000000, 3100000,
171};
172
173static const u32 vcamd_voltages[] = {
174 900000, 1000000, 1100000, 1200000,
175 1300000, 1500000, 1800000,
176};
177
178static const u32 vefuse_voltages[] = {
179 1700000, 1800000, 1900000,
180};
181
182static const u32 vmch_vemc_voltages[] = {
183 2900000, 3000000, 3300000,
184};
185
186static const u32 vcama_voltages[] = {
187 1800000, 2500000, 2700000,
188 2800000, 2900000, 3000000,
189};
190
191static const u32 vcn33_bt_wifi_voltages[] = {
192 3300000, 3400000, 3500000,
193};
194
195static const u32 vmc_voltages[] = {
196 1800000, 2900000, 3000000, 3300000,
197};
198
199static const u32 vldo28_voltages[] = {
200 2800000, 3000000,
201};
202
203static const u32 vdram2_idx[] = {
204 0, 12,
205};
206
207static const u32 vsim_idx[] = {
208 3, 4, 8, 11, 12,
209};
210
211static const u32 vibr_idx[] = {
212 0, 1, 2, 4, 5, 9, 11, 13,
213};
214
215static const u32 vusb_idx[] = {
216 3, 4,
217};
218
219static const u32 vcamd_idx[] = {
220 3, 4, 5, 6, 7, 9, 12,
221};
222
223static const u32 vefuse_idx[] = {
224 11, 12, 13,
225};
226
227static const u32 vmch_vemc_idx[] = {
228 2, 3, 5,
229};
230
231static const u32 vcama_idx[] = {
232 0, 7, 9, 10, 11, 12,
233};
234
235static const u32 vcn33_bt_wifi_idx[] = {
236 1, 2, 3,
237};
238
239static const u32 vmc_idx[] = {
240 4, 10, 11, 13,
241};
242
243static const u32 vldo28_idx[] = {
244 1, 3,
245};
246
247static unsigned int mt6358_map_mode(unsigned int mode)
248{
249 return mode == MT6358_BUCK_MODE_AUTO ?
250 REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;
251}
252
253static int mt6358_set_voltage_sel(struct regulator_dev *rdev,
254 unsigned int selector)
255{
256 int idx, ret;
257 const u32 *pvol;
258 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
259
260 pvol = info->index_table;
261
262 idx = pvol[selector];
263 ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg,
264 info->desc.vsel_mask,
265 idx << info->vsel_shift);
266
267 return ret;
268}
269
270static int mt6358_get_voltage_sel(struct regulator_dev *rdev)
271{
272 int idx, ret;
273 u32 selector;
274 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
275 const u32 *pvol;
276
277 ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector);
278 if (ret != 0) {
279 dev_info(&rdev->dev,
280 "Failed to get mt6358 %s vsel reg: %d\n",
281 info->desc.name, ret);
282 return ret;
283 }
284
285 selector = (selector & info->desc.vsel_mask) >> info->vsel_shift;
286 pvol = info->index_table;
287 for (idx = 0; idx < info->desc.n_voltages; idx++) {
288 if (pvol[idx] == selector)
289 return idx;
290 }
291
292 return -EINVAL;
293}
294
295static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)
296{
297 int ret, regval;
298 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
299
300 ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val);
301 if (ret != 0) {
302 dev_err(&rdev->dev,
303 "Failed to get mt6358 Buck %s vsel reg: %d\n",
304 info->desc.name, ret);
305 return ret;
306 }
307
308 ret = (regval >> info->da_vsel_shift) & info->da_vsel_mask;
309
310 return ret;
311}
312
313static int mt6358_get_status(struct regulator_dev *rdev)
314{
315 int ret;
316 u32 regval;
317 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
318
319 ret = regmap_read(rdev->regmap, info->status_reg, ®val);
320 if (ret != 0) {
321 dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);
322 return ret;
323 }
324
325 return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
326}
327
328static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
329 unsigned int mode)
330{
331 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
332 int val;
333
334 switch (mode) {
335 case REGULATOR_MODE_FAST:
336 val = MT6358_BUCK_MODE_FORCE_PWM;
337 break;
338 case REGULATOR_MODE_NORMAL:
339 val = MT6358_BUCK_MODE_AUTO;
340 break;
341 default:
342 return -EINVAL;
343 }
344
345 dev_dbg(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x, %#x\n",
346 info->modeset_reg, info->modeset_mask,
347 info->modeset_shift, val);
348
349 val <<= info->modeset_shift;
350
351 return regmap_update_bits(rdev->regmap, info->modeset_reg,
352 info->modeset_mask, val);
353}
354
355static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
356{
357 struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
358 int ret, regval;
359
360 ret = regmap_read(rdev->regmap, info->modeset_reg, ®val);
361 if (ret != 0) {
362 dev_err(&rdev->dev,
363 "Failed to get mt6358 buck mode: %d\n", ret);
364 return ret;
365 }
366
367 switch ((regval & info->modeset_mask) >> info->modeset_shift) {
368 case MT6358_BUCK_MODE_AUTO:
369 return REGULATOR_MODE_NORMAL;
370 case MT6358_BUCK_MODE_FORCE_PWM:
371 return REGULATOR_MODE_FAST;
372 default:
373 return -EINVAL;
374 }
375}
376
377static const struct regulator_ops mt6358_volt_range_ops = {
378 .list_voltage = regulator_list_voltage_linear_range,
379 .map_voltage = regulator_map_voltage_linear_range,
380 .set_voltage_sel = regulator_set_voltage_sel_regmap,
381 .get_voltage_sel = mt6358_get_buck_voltage_sel,
382 .set_voltage_time_sel = regulator_set_voltage_time_sel,
383 .enable = regulator_enable_regmap,
384 .disable = regulator_disable_regmap,
385 .is_enabled = regulator_is_enabled_regmap,
386 .get_status = mt6358_get_status,
387 .set_mode = mt6358_regulator_set_mode,
388 .get_mode = mt6358_regulator_get_mode,
389};
390
391static const struct regulator_ops mt6358_volt_table_ops = {
392 .list_voltage = regulator_list_voltage_table,
393 .map_voltage = regulator_map_voltage_iterate,
394 .set_voltage_sel = mt6358_set_voltage_sel,
395 .get_voltage_sel = mt6358_get_voltage_sel,
396 .set_voltage_time_sel = regulator_set_voltage_time_sel,
397 .enable = regulator_enable_regmap,
398 .disable = regulator_disable_regmap,
399 .is_enabled = regulator_is_enabled_regmap,
400 .get_status = mt6358_get_status,
401};
402
403static const struct regulator_ops mt6358_volt_fixed_ops = {
404 .list_voltage = regulator_list_voltage_linear,
405 .enable = regulator_enable_regmap,
406 .disable = regulator_disable_regmap,
407 .is_enabled = regulator_is_enabled_regmap,
408 .get_status = mt6358_get_status,
409};
410
411/* The array is indexed by id(MT6358_ID_XXX) */
412static struct mt6358_regulator_info mt6358_regulators[] = {
413 MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
414 buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f,
415 0, MT6358_VDRAM1_ANA_CON0, 8),
416 MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
417 buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f,
418 0, MT6358_VCORE_VGPU_ANA_CON0, 1),
419 MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
420 buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, 0,
421 MT6358_VPA_ANA_CON0, 3),
422 MT6358_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
423 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f,
424 0, MT6358_VPROC_ANA_CON0, 1),
425 MT6358_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
426 buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f,
427 0, MT6358_VPROC_ANA_CON0, 2),
428 MT6358_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
429 buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, 0,
430 MT6358_VCORE_VGPU_ANA_CON0, 2),
431 MT6358_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
432 buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, 0,
433 MT6358_VS2_ANA_CON0, 8),
434 MT6358_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
435 buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f,
436 0, MT6358_VMODEM_ANA_CON0, 8),
437 MT6358_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
438 buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, 0,
439 MT6358_VS1_ANA_CON0, 8),
440 MT6358_REG_FIXED("ldo_vrf12", VRF12,
441 MT6358_LDO_VRF12_CON0, 0, 1200000),
442 MT6358_REG_FIXED("ldo_vio18", VIO18,
443 MT6358_LDO_VIO18_CON0, 0, 1800000),
444 MT6358_REG_FIXED("ldo_vcamio", VCAMIO,
445 MT6358_LDO_VCAMIO_CON0, 0, 1800000),
446 MT6358_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),
447 MT6358_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),
448 MT6358_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),
449 MT6358_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),
450 MT6358_REG_FIXED("ldo_vaux18", VAUX18,
451 MT6358_LDO_VAUX18_CON0, 0, 1800000),
452 MT6358_REG_FIXED("ldo_vbif28", VBIF28,
453 MT6358_LDO_VBIF28_CON0, 0, 2800000),
454 MT6358_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),
455 MT6358_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),
456 MT6358_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),
457 MT6358_REG_FIXED("ldo_vaud28", VAUD28,
458 MT6358_LDO_VAUD28_CON0, 0, 2800000),
459 MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
460 MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10, 0),
461 MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
462 MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00, 8),
463 MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
464 MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00, 8),
465 MT6358_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,
466 MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700, 8),
467 MT6358_LDO("ldo_vcamd", VCAMD, vcamd_voltages, vcamd_idx,
468 MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00, 8),
469 MT6358_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,
470 MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00, 8),
471 MT6358_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,
472 MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700, 8),
473 MT6358_LDO("ldo_vcama1", VCAMA1, vcama_voltages, vcama_idx,
474 MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00, 8),
475 MT6358_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,
476 MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700, 8),
477 MT6358_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages,
478 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0,
479 0, MT6358_VCN33_ANA_CON0, 0x300, 8),
480 MT6358_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages,
481 vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1,
482 0, MT6358_VCN33_ANA_CON0, 0x300, 8),
483 MT6358_LDO("ldo_vcama2", VCAMA2, vcama_voltages, vcama_idx,
484 MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00, 8),
485 MT6358_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,
486 MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00, 8),
487 MT6358_LDO("ldo_vldo28", VLDO28, vldo28_voltages, vldo28_idx,
488 MT6358_LDO_VLDO28_CON0_0, 0,
489 MT6358_VLDO28_ANA_CON0, 0x300, 8),
490 MT6358_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,
491 MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00, 8),
492 MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
493 buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f, 8,
494 MT6358_LDO_VSRAM_CON0, 0x7f),
495 MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
496 buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f, 8,
497 MT6358_LDO_VSRAM_CON2, 0x7f),
498 MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
499 buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f, 8,
500 MT6358_LDO_VSRAM_CON3, 0x7f),
501 MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
502 buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f, 8,
503 MT6358_LDO_VSRAM_CON1, 0x7f),
504};
505
506static int mt6358_regulator_probe(struct platform_device *pdev)
507{
508 struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
509 struct regulator_config config = {};
510 struct regulator_dev *rdev;
511 int i;
512
513 for (i = 0; i < MT6358_MAX_REGULATOR; i++) {
514 config.dev = &pdev->dev;
515 config.driver_data = &mt6358_regulators[i];
516 config.regmap = mt6397->regmap;
517
518 rdev = devm_regulator_register(&pdev->dev,
519 &mt6358_regulators[i].desc,
520 &config);
521 if (IS_ERR(rdev)) {
522 dev_err(&pdev->dev, "failed to register %s\n",
523 mt6358_regulators[i].desc.name);
524 return PTR_ERR(rdev);
525 }
526 }
527
528 return 0;
529}
530
531static const struct platform_device_id mt6358_platform_ids[] = {
532 {"mt6358-regulator", 0},
533 { /* sentinel */ },
534};
535MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
536
537static struct platform_driver mt6358_regulator_driver = {
538 .driver = {
539 .name = "mt6358-regulator",
540 },
541 .probe = mt6358_regulator_probe,
542 .id_table = mt6358_platform_ids,
543};
544
545module_platform_driver(mt6358_regulator_driver);
546
547MODULE_AUTHOR("Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>");
548MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
549MODULE_LICENSE("GPL");