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#include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
17
18/*
19 * MT6358 regulators' information
20 *
21 * @desc: standard fields of regulator description.
22 * @qi: Mask for query enable signal status of regulators
23 */
24struct mt6358_regulator_info {
25 struct regulator_desc desc;
26 u32 status_reg;
27 u32 qi;
28 u32 da_vsel_reg;
29 u32 da_vsel_mask;
30 u32 modeset_reg;
31 u32 modeset_mask;
32};
33
34#define to_regulator_info(x) container_of_const((x), struct mt6358_regulator_info, desc)
35
36#define MT6358_BUCK(match, vreg, supply, min, max, step, \
37 vosel_mask, _da_vsel_reg, _da_vsel_mask, \
38 _modeset_reg, _modeset_shift) \
39[MT6358_ID_##vreg] = { \
40 .desc = { \
41 .name = #vreg, \
42 .supply_name = supply, \
43 .of_match = of_match_ptr(match), \
44 .ops = &mt6358_buck_ops, \
45 .type = REGULATOR_VOLTAGE, \
46 .id = MT6358_ID_##vreg, \
47 .owner = THIS_MODULE, \
48 .n_voltages = ((max) - (min)) / (step) + 1, \
49 .min_uV = (min), \
50 .uV_step = (step), \
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, supply, volt_ranges, enreg, enbit, vosel, vosel_mask) \
66[MT6358_ID_##vreg] = { \
67 .desc = { \
68 .name = #vreg, \
69 .supply_name = supply, \
70 .of_match = of_match_ptr(match), \
71 .ops = &mt6358_volt_table_ops, \
72 .type = REGULATOR_VOLTAGE, \
73 .id = MT6358_ID_##vreg, \
74 .owner = THIS_MODULE, \
75 .n_voltages = ARRAY_SIZE(volt_ranges##_ranges) * 11, \
76 .linear_ranges = volt_ranges##_ranges, \
77 .linear_range_selectors_bitfield = volt_ranges##_selectors, \
78 .n_linear_ranges = ARRAY_SIZE(volt_ranges##_ranges), \
79 .vsel_range_reg = vosel, \
80 .vsel_range_mask = vosel_mask, \
81 .vsel_reg = MT6358_##vreg##_ANA_CON0, \
82 .vsel_mask = GENMASK(3, 0), \
83 .enable_reg = enreg, \
84 .enable_mask = BIT(enbit), \
85 }, \
86 .status_reg = MT6358_LDO_##vreg##_CON1, \
87 .qi = BIT(15), \
88}
89
90#define MT6358_LDO1(match, vreg, supply, min, max, step, \
91 _da_vsel_reg, _da_vsel_mask, vosel, vosel_mask) \
92[MT6358_ID_##vreg] = { \
93 .desc = { \
94 .name = #vreg, \
95 .supply_name = supply, \
96 .of_match = of_match_ptr(match), \
97 .ops = &mt6358_volt_range_ops, \
98 .type = REGULATOR_VOLTAGE, \
99 .id = MT6358_ID_##vreg, \
100 .owner = THIS_MODULE, \
101 .n_voltages = ((max) - (min)) / (step) + 1, \
102 .min_uV = (min), \
103 .uV_step = (step), \
104 .vsel_reg = vosel, \
105 .vsel_mask = vosel_mask, \
106 .enable_reg = MT6358_LDO_##vreg##_CON0, \
107 .enable_mask = BIT(0), \
108 }, \
109 .da_vsel_reg = _da_vsel_reg, \
110 .da_vsel_mask = _da_vsel_mask, \
111 .status_reg = MT6358_LDO_##vreg##_DBG1, \
112 .qi = BIT(0), \
113}
114
115#define MT6358_REG_FIXED(match, vreg, supply, enreg, enbit, volt) \
116[MT6358_ID_##vreg] = { \
117 .desc = { \
118 .name = #vreg, \
119 .supply_name = supply, \
120 .of_match = of_match_ptr(match), \
121 .ops = &mt6358_volt_fixed_ops, \
122 .type = REGULATOR_VOLTAGE, \
123 .id = MT6358_ID_##vreg, \
124 .owner = THIS_MODULE, \
125 .n_voltages = 11, \
126 .vsel_reg = MT6358_##vreg##_ANA_CON0, \
127 .vsel_mask = GENMASK(3, 0), \
128 .enable_reg = enreg, \
129 .enable_mask = BIT(enbit), \
130 .min_uV = volt, \
131 .uV_step = 10000, \
132 }, \
133 .status_reg = MT6358_LDO_##vreg##_CON1, \
134 .qi = BIT(15), \
135}
136
137#define MT6366_BUCK(match, vreg, min, max, step, \
138 vosel_mask, _da_vsel_reg, _da_vsel_mask, \
139 _modeset_reg, _modeset_shift) \
140[MT6366_ID_##vreg] = { \
141 .desc = { \
142 .name = #vreg, \
143 .supply_name = "vsys-" match, \
144 .of_match = of_match_ptr(match), \
145 .ops = &mt6358_buck_ops, \
146 .type = REGULATOR_VOLTAGE, \
147 .id = MT6366_ID_##vreg, \
148 .owner = THIS_MODULE, \
149 .n_voltages = ((max) - (min)) / (step) + 1, \
150 .min_uV = (min), \
151 .uV_step = (step), \
152 .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
153 .vsel_mask = vosel_mask, \
154 .enable_reg = MT6358_BUCK_##vreg##_CON0, \
155 .enable_mask = BIT(0), \
156 .of_map_mode = mt6358_map_mode, \
157 }, \
158 .status_reg = MT6358_BUCK_##vreg##_DBG1, \
159 .qi = BIT(0), \
160 .da_vsel_reg = _da_vsel_reg, \
161 .da_vsel_mask = _da_vsel_mask, \
162 .modeset_reg = _modeset_reg, \
163 .modeset_mask = BIT(_modeset_shift), \
164}
165
166#define MT6366_LDO(match, vreg, volt_ranges, supply, enreg, enbit, vosel, vosel_mask) \
167[MT6366_ID_##vreg] = { \
168 .desc = { \
169 .name = #vreg, \
170 .supply_name = supply, \
171 .of_match = of_match_ptr(match), \
172 .ops = &mt6358_volt_table_ops, \
173 .type = REGULATOR_VOLTAGE, \
174 .id = MT6366_ID_##vreg, \
175 .owner = THIS_MODULE, \
176 .n_voltages = ARRAY_SIZE(volt_ranges##_ranges) * 11, \
177 .linear_ranges = volt_ranges##_ranges, \
178 .linear_range_selectors_bitfield = volt_ranges##_selectors, \
179 .n_linear_ranges = ARRAY_SIZE(volt_ranges##_ranges), \
180 .vsel_range_reg = vosel, \
181 .vsel_range_mask = vosel_mask, \
182 .vsel_reg = MT6358_##vreg##_ANA_CON0, \
183 .vsel_mask = GENMASK(3, 0), \
184 .enable_reg = enreg, \
185 .enable_mask = BIT(enbit), \
186 }, \
187 .status_reg = MT6358_LDO_##vreg##_CON1, \
188 .qi = BIT(15), \
189}
190
191#define MT6366_LDO1(match, vreg, supply, min, max, step, \
192 _da_vsel_reg, _da_vsel_mask, vosel, vosel_mask) \
193[MT6366_ID_##vreg] = { \
194 .desc = { \
195 .name = #vreg, \
196 .supply_name = supply, \
197 .of_match = of_match_ptr(match), \
198 .ops = &mt6358_volt_range_ops, \
199 .type = REGULATOR_VOLTAGE, \
200 .id = MT6366_ID_##vreg, \
201 .owner = THIS_MODULE, \
202 .n_voltages = ((max) - (min)) / (step) + 1, \
203 .min_uV = (min), \
204 .uV_step = (step), \
205 .vsel_reg = vosel, \
206 .vsel_mask = vosel_mask, \
207 .enable_reg = MT6358_LDO_##vreg##_CON0, \
208 .enable_mask = BIT(0), \
209 }, \
210 .da_vsel_reg = _da_vsel_reg, \
211 .da_vsel_mask = _da_vsel_mask, \
212 .status_reg = MT6358_LDO_##vreg##_DBG1, \
213 .qi = BIT(0), \
214}
215
216#define MT6366_REG_FIXED(match, vreg, supply, enreg, enbit, volt) \
217[MT6366_ID_##vreg] = { \
218 .desc = { \
219 .name = #vreg, \
220 .supply_name = supply, \
221 .of_match = of_match_ptr(match), \
222 .ops = &mt6358_volt_fixed_ops, \
223 .type = REGULATOR_VOLTAGE, \
224 .id = MT6366_ID_##vreg, \
225 .owner = THIS_MODULE, \
226 .n_voltages = 11, \
227 .vsel_reg = MT6358_##vreg##_ANA_CON0, \
228 .vsel_mask = GENMASK(3, 0), \
229 .enable_reg = enreg, \
230 .enable_mask = BIT(enbit), \
231 .min_uV = volt, \
232 .uV_step = 10000, \
233 }, \
234 .status_reg = MT6358_LDO_##vreg##_CON1, \
235 .qi = BIT(15), \
236}
237
238
239/* VDRAM2 voltage selector not shown in datasheet */
240static const unsigned int vdram2_selectors[] = { 0, 12 };
241static const struct linear_range vdram2_ranges[] = {
242 REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
243 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
244};
245
246static const unsigned int vsim_selectors[] = { 3, 4, 8, 11, 12 };
247static const struct linear_range vsim_ranges[] = {
248 REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
249 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
250 REGULATOR_LINEAR_RANGE(2700000, 0, 10, 10000),
251 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
252 REGULATOR_LINEAR_RANGE(3100000, 0, 10, 10000),
253};
254
255static const unsigned int vibr_selectors[] = { 0, 1, 2, 4, 5, 9, 11, 13 };
256static const struct linear_range vibr_ranges[] = {
257 REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
258 REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
259 REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
260 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
261 REGULATOR_LINEAR_RANGE(2000000, 0, 10, 10000),
262 REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
263 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
264 REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
265};
266
267/* VUSB voltage selector not shown in datasheet */
268static const unsigned int vusb_selectors[] = { 3, 4 };
269static const struct linear_range vusb_ranges[] = {
270 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
271 REGULATOR_LINEAR_RANGE(3100000, 0, 10, 10000),
272};
273
274static const unsigned int vcamd_selectors[] = { 3, 4, 5, 6, 7, 9, 12 };
275static const struct linear_range vcamd_ranges[] = {
276 REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
277 REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
278 REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
279 REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
280 REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
281 REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
282 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
283};
284
285static const unsigned int vefuse_selectors[] = { 11, 12, 13 };
286static const struct linear_range vefuse_ranges[] = {
287 REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
288 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
289 REGULATOR_LINEAR_RANGE(1900000, 0, 10, 10000),
290};
291
292static const unsigned int vmch_vemc_selectors[] = { 2, 3, 5 };
293static const struct linear_range vmch_vemc_ranges[] = {
294 REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
295 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
296 REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
297};
298
299static const unsigned int vcama_selectors[] = { 0, 7, 9, 10, 11, 12 };
300static const struct linear_range vcama_ranges[] = {
301 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
302 REGULATOR_LINEAR_RANGE(2500000, 0, 10, 10000),
303 REGULATOR_LINEAR_RANGE(2700000, 0, 10, 10000),
304 REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
305 REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
306 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
307};
308
309static const unsigned int vcn33_selectors[] = { 1, 2, 3 };
310static const struct linear_range vcn33_ranges[] = {
311 REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
312 REGULATOR_LINEAR_RANGE(3400000, 0, 10, 10000),
313 REGULATOR_LINEAR_RANGE(3500000, 0, 10, 10000),
314};
315
316static const unsigned int vmc_selectors[] = { 4, 10, 11, 13 };
317static const struct linear_range vmc_ranges[] = {
318 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
319 REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
320 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
321 REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
322};
323
324static const unsigned int vldo28_selectors[] = { 1, 3 };
325static const struct linear_range vldo28_ranges[] = {
326 REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
327 REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
328};
329
330static const unsigned int mt6366_vmddr_selectors[] = { 0, 1, 2, 3, 4, 5, 6, 7, 9, 12 };
331static const struct linear_range mt6366_vmddr_ranges[] = {
332 REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
333 REGULATOR_LINEAR_RANGE(700000, 0, 10, 10000),
334 REGULATOR_LINEAR_RANGE(800000, 0, 10, 10000),
335 REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
336 REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
337 REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
338 REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
339 REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
340 REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
341 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
342};
343
344static const unsigned int mt6366_vcn18_vm18_selectors[] = {
345 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
346static const struct linear_range mt6366_vcn18_vm18_ranges[] = {
347 REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
348 REGULATOR_LINEAR_RANGE(700000, 0, 10, 10000),
349 REGULATOR_LINEAR_RANGE(800000, 0, 10, 10000),
350 REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
351 REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
352 REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
353 REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
354 REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
355 REGULATOR_LINEAR_RANGE(1400000, 0, 10, 10000),
356 REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
357 REGULATOR_LINEAR_RANGE(1600000, 0, 10, 10000),
358 REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
359 REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
360 REGULATOR_LINEAR_RANGE(1900000, 0, 10, 10000),
361 REGULATOR_LINEAR_RANGE(2000000, 0, 10, 10000),
362 REGULATOR_LINEAR_RANGE(2100000, 0, 10, 10000),
363};
364
365static unsigned int mt6358_map_mode(unsigned int mode)
366{
367 return mode == MT6397_BUCK_MODE_AUTO ?
368 REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;
369}
370
371static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)
372{
373 const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
374 int ret, regval;
375
376 ret = regmap_read(map: rdev->regmap, reg: info->da_vsel_reg, val: &regval);
377 if (ret != 0) {
378 dev_err(&rdev->dev,
379 "Failed to get mt6358 Buck %s vsel reg: %d\n",
380 info->desc.name, ret);
381 return ret;
382 }
383
384 ret = (regval & info->da_vsel_mask) >> (ffs(info->da_vsel_mask) - 1);
385
386 return ret;
387}
388
389static int mt6358_get_status(struct regulator_dev *rdev)
390{
391 const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
392 int ret;
393 u32 regval;
394
395 ret = regmap_read(map: rdev->regmap, reg: info->status_reg, val: &regval);
396 if (ret != 0) {
397 dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);
398 return ret;
399 }
400
401 return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
402}
403
404static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
405 unsigned int mode)
406{
407 const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
408 int val;
409
410 switch (mode) {
411 case REGULATOR_MODE_FAST:
412 val = MT6397_BUCK_MODE_FORCE_PWM;
413 break;
414 case REGULATOR_MODE_NORMAL:
415 val = MT6397_BUCK_MODE_AUTO;
416 break;
417 default:
418 return -EINVAL;
419 }
420
421 dev_dbg(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x\n",
422 info->modeset_reg, info->modeset_mask, val);
423
424 val <<= ffs(info->modeset_mask) - 1;
425
426 return regmap_update_bits(map: rdev->regmap, reg: info->modeset_reg,
427 mask: info->modeset_mask, val);
428}
429
430static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
431{
432 const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
433 int ret, regval;
434
435 ret = regmap_read(map: rdev->regmap, reg: info->modeset_reg, val: &regval);
436 if (ret != 0) {
437 dev_err(&rdev->dev,
438 "Failed to get mt6358 buck mode: %d\n", ret);
439 return ret;
440 }
441
442 switch ((regval & info->modeset_mask) >> (ffs(info->modeset_mask) - 1)) {
443 case MT6397_BUCK_MODE_AUTO:
444 return REGULATOR_MODE_NORMAL;
445 case MT6397_BUCK_MODE_FORCE_PWM:
446 return REGULATOR_MODE_FAST;
447 default:
448 return -EINVAL;
449 }
450}
451
452static const struct regulator_ops mt6358_buck_ops = {
453 .list_voltage = regulator_list_voltage_linear,
454 .map_voltage = regulator_map_voltage_linear,
455 .set_voltage_sel = regulator_set_voltage_sel_regmap,
456 .get_voltage_sel = mt6358_get_buck_voltage_sel,
457 .set_voltage_time_sel = regulator_set_voltage_time_sel,
458 .enable = regulator_enable_regmap,
459 .disable = regulator_disable_regmap,
460 .is_enabled = regulator_is_enabled_regmap,
461 .get_status = mt6358_get_status,
462 .set_mode = mt6358_regulator_set_mode,
463 .get_mode = mt6358_regulator_get_mode,
464};
465
466static const struct regulator_ops mt6358_volt_range_ops = {
467 .list_voltage = regulator_list_voltage_linear,
468 .map_voltage = regulator_map_voltage_linear,
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};
477
478static const struct regulator_ops mt6358_volt_table_ops = {
479 .list_voltage = regulator_list_voltage_pickable_linear_range,
480 .map_voltage = regulator_map_voltage_pickable_linear_range,
481 .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
482 .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
483 .set_voltage_time_sel = regulator_set_voltage_time_sel,
484 .enable = regulator_enable_regmap,
485 .disable = regulator_disable_regmap,
486 .is_enabled = regulator_is_enabled_regmap,
487 .get_status = mt6358_get_status,
488};
489
490/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */
491static const struct regulator_ops mt6358_volt_fixed_ops = {
492 .list_voltage = regulator_list_voltage_linear,
493 .map_voltage = regulator_map_voltage_linear,
494 .set_voltage_sel = regulator_set_voltage_sel_regmap,
495 .get_voltage_sel = mt6358_get_buck_voltage_sel,
496 .set_voltage_time_sel = regulator_set_voltage_time_sel,
497 .enable = regulator_enable_regmap,
498 .disable = regulator_disable_regmap,
499 .is_enabled = regulator_is_enabled_regmap,
500 .get_status = mt6358_get_status,
501};
502
503/* The array is indexed by id(MT6358_ID_XXX) */
504static const struct mt6358_regulator_info mt6358_regulators[] = {
505 MT6358_BUCK("buck_vdram1", VDRAM1, "vsys-vdram1", 500000, 2087500, 12500,
506 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
507 MT6358_BUCK("buck_vcore", VCORE, "vsys-vcore", 500000, 1293750, 6250,
508 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
509 MT6358_BUCK("buck_vpa", VPA, "vsys-vpa", 500000, 3650000, 50000,
510 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
511 MT6358_BUCK("buck_vproc11", VPROC11, "vsys-vproc11", 500000, 1293750, 6250,
512 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
513 MT6358_BUCK("buck_vproc12", VPROC12, "vsys-vproc12", 500000, 1293750, 6250,
514 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
515 MT6358_BUCK("buck_vgpu", VGPU, "vsys-vgpu", 500000, 1293750, 6250,
516 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
517 MT6358_BUCK("buck_vs2", VS2, "vsys-vs2", 500000, 2087500, 12500,
518 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
519 MT6358_BUCK("buck_vmodem", VMODEM, "vsys-vmodem", 500000, 1293750, 6250,
520 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
521 MT6358_BUCK("buck_vs1", VS1, "vsys-vs1", 1000000, 2587500, 12500,
522 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
523 MT6358_REG_FIXED("ldo_vrf12", VRF12, "vs2-ldo2", MT6358_LDO_VRF12_CON0, 0, 1200000),
524 MT6358_REG_FIXED("ldo_vio18", VIO18, "vs1-ldo1", MT6358_LDO_VIO18_CON0, 0, 1800000),
525 MT6358_REG_FIXED("ldo_vcamio", VCAMIO, "vs1-ldo1", MT6358_LDO_VCAMIO_CON0, 0, 1800000),
526 MT6358_REG_FIXED("ldo_vcn18", VCN18, "vs1-ldo1", MT6358_LDO_VCN18_CON0, 0, 1800000),
527 MT6358_REG_FIXED("ldo_vfe28", VFE28, "vsys-ldo1", MT6358_LDO_VFE28_CON0, 0, 2800000),
528 MT6358_REG_FIXED("ldo_vcn28", VCN28, "vsys-ldo1", MT6358_LDO_VCN28_CON0, 0, 2800000),
529 MT6358_REG_FIXED("ldo_vxo22", VXO22, "vsys-ldo1", MT6358_LDO_VXO22_CON0, 0, 2200000),
530 MT6358_REG_FIXED("ldo_vaux18", VAUX18, "vsys-ldo1", MT6358_LDO_VAUX18_CON0, 0, 1800000),
531 MT6358_REG_FIXED("ldo_vbif28", VBIF28, "vsys-ldo1", MT6358_LDO_VBIF28_CON0, 0, 2800000),
532 MT6358_REG_FIXED("ldo_vio28", VIO28, "vsys-ldo2", MT6358_LDO_VIO28_CON0, 0, 2800000),
533 MT6358_REG_FIXED("ldo_va12", VA12, "vs2-ldo2", MT6358_LDO_VA12_CON0, 0, 1200000),
534 MT6358_REG_FIXED("ldo_vrf18", VRF18, "vs1-ldo1", MT6358_LDO_VRF18_CON0, 0, 1800000),
535 MT6358_REG_FIXED("ldo_vaud28", VAUD28, "vsys-ldo1", MT6358_LDO_VAUD28_CON0, 0, 2800000),
536 MT6358_LDO("ldo_vdram2", VDRAM2, "vs2-ldo1", vdram2,
537 MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf),
538 MT6358_LDO("ldo_vsim1", VSIM1, "vsys-ldo1", vsim,
539 MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
540 MT6358_LDO("ldo_vibr", VIBR, "vsys-ldo3", vibr,
541 MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
542 MT6358_LDO("ldo_vusb", VUSB, "vsys-ldo1", vusb,
543 MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
544 MT6358_LDO("ldo_vcamd", VCAMD, "vs2-ldo4", vcamd,
545 MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00),
546 MT6358_LDO("ldo_vefuse", VEFUSE, "vs1-ldo1", vefuse,
547 MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
548 MT6358_LDO("ldo_vmch", VMCH, "vsys-ldo2", vmch_vemc,
549 MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
550 MT6358_LDO("ldo_vcama1", VCAMA1, "vsys-ldo3", vcama,
551 MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00),
552 MT6358_LDO("ldo_vemc", VEMC, "vsys-ldo2", vmch_vemc,
553 MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
554 MT6358_LDO("ldo_vcn33", VCN33, "vsys-ldo3", vcn33,
555 MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
556 MT6358_LDO("ldo_vcama2", VCAMA2, "vsys-ldo3", vcama,
557 MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00),
558 MT6358_LDO("ldo_vmc", VMC, "vsys-ldo2", vmc,
559 MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
560 MT6358_LDO("ldo_vldo28", VLDO28, "vsys-ldo2", vldo28,
561 MT6358_LDO_VLDO28_CON0_0, 0,
562 MT6358_VLDO28_ANA_CON0, 0x300),
563 MT6358_LDO("ldo_vsim2", VSIM2, "vsys-ldo2", vsim,
564 MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
565 MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, "vs2-ldo3", 500000, 1293750, 6250,
566 MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
567 MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, "vs2-ldo3", 500000, 1293750, 6250,
568 MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
569 MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, "vs2-ldo3", 500000, 1293750, 6250,
570 MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
571 MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, "vs2-ldo3", 500000, 1293750, 6250,
572 MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
573};
574
575/* The array is indexed by id(MT6366_ID_XXX) */
576static const struct mt6358_regulator_info mt6366_regulators[] = {
577 MT6366_BUCK("vdram1", VDRAM1, 500000, 2087500, 12500,
578 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
579 MT6366_BUCK("vcore", VCORE, 500000, 1293750, 6250,
580 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
581 MT6366_BUCK("vpa", VPA, 500000, 3650000, 50000,
582 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
583 MT6366_BUCK("vproc11", VPROC11, 500000, 1293750, 6250,
584 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
585 MT6366_BUCK("vproc12", VPROC12, 500000, 1293750, 6250,
586 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
587 MT6366_BUCK("vgpu", VGPU, 500000, 1293750, 6250,
588 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
589 MT6366_BUCK("vs2", VS2, 500000, 2087500, 12500,
590 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
591 MT6366_BUCK("vmodem", VMODEM, 500000, 1293750, 6250,
592 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
593 MT6366_BUCK("vs1", VS1, 1000000, 2587500, 12500,
594 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
595 MT6366_REG_FIXED("vrf12", VRF12, "vs2-ldo2", MT6358_LDO_VRF12_CON0, 0, 1200000),
596 MT6366_REG_FIXED("vio18", VIO18, "vs1-ldo1", MT6358_LDO_VIO18_CON0, 0, 1800000),
597 MT6366_REG_FIXED("vfe28", VFE28, "vsys-ldo1", MT6358_LDO_VFE28_CON0, 0, 2800000),
598 MT6366_REG_FIXED("vcn28", VCN28, "vsys-ldo1", MT6358_LDO_VCN28_CON0, 0, 2800000),
599 MT6366_REG_FIXED("vxo22", VXO22, "vsys-ldo1", MT6358_LDO_VXO22_CON0, 0, 2200000),
600 MT6366_REG_FIXED("vaux18", VAUX18, "vsys-ldo1", MT6358_LDO_VAUX18_CON0, 0, 1800000),
601 MT6366_REG_FIXED("vbif28", VBIF28, "vsys-ldo1", MT6358_LDO_VBIF28_CON0, 0, 2800000),
602 MT6366_REG_FIXED("vio28", VIO28, "vsys-ldo2", MT6358_LDO_VIO28_CON0, 0, 2800000),
603 MT6366_REG_FIXED("va12", VA12, "vs2-ldo2", MT6358_LDO_VA12_CON0, 0, 1200000),
604 MT6366_REG_FIXED("vrf18", VRF18, "vs1-ldo1", MT6358_LDO_VRF18_CON0, 0, 1800000),
605 MT6366_REG_FIXED("vaud28", VAUD28, "vsys-ldo1", MT6358_LDO_VAUD28_CON0, 0, 2800000),
606 MT6366_LDO("vdram2", VDRAM2, vdram2, "vs2-ldo1",
607 MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10),
608 MT6366_LDO("vsim1", VSIM1, vsim, "vsys-ldo1",
609 MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
610 MT6366_LDO("vibr", VIBR, vibr, "vsys-ldo3",
611 MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
612 MT6366_LDO("vusb", VUSB, vusb, "vsys-ldo1",
613 MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
614 MT6366_LDO("vefuse", VEFUSE, vefuse, "vs1-ldo1",
615 MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
616 MT6366_LDO("vmch", VMCH, vmch_vemc, "vsys-ldo2",
617 MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
618 MT6366_LDO("vemc", VEMC, vmch_vemc, "vsys-ldo3",
619 MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
620 MT6366_LDO("vcn33", VCN33, vcn33, "vsys-ldo3",
621 MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
622 MT6366_LDO("vmc", VMC, vmc, "vsys-ldo2",
623 MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
624 MT6366_LDO("vsim2", VSIM2, vsim, "vsys-ldo2",
625 MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
626 MT6366_LDO("vcn18", VCN18, mt6366_vcn18_vm18, "vs1-ldo1",
627 MT6358_LDO_VCN18_CON0, 0, MT6358_VCN18_ANA_CON0, 0xf00),
628 MT6366_LDO("vm18", VM18, mt6366_vcn18_vm18, "vs1-ldo1",
629 MT6358_LDO_VM18_CON0, 0, MT6358_VM18_ANA_CON0, 0xf00),
630 MT6366_LDO("vmddr", VMDDR, mt6366_vmddr, "vs2-ldo1",
631 MT6358_LDO_VMDDR_CON0, 0, MT6358_VMDDR_ANA_CON0, 0xf00),
632 MT6366_LDO1("vsram-proc11", VSRAM_PROC11, "vs2-ldo3", 500000, 1293750, 6250,
633 MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
634 MT6366_LDO1("vsram-others", VSRAM_OTHERS, "vs2-ldo3", 500000, 1293750, 6250,
635 MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
636 MT6366_LDO1("vsram-gpu", VSRAM_GPU, "vs2-ldo3", 500000, 1293750, 6250,
637 MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
638 MT6366_LDO1("vsram-proc12", VSRAM_PROC12, "vs2-ldo3", 500000, 1293750, 6250,
639 MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
640 MT6366_LDO1("vsram-core", VSRAM_CORE, "vs2-ldo3", 500000, 1293750, 6250,
641 MT6358_LDO_VSRAM_CORE_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON5, 0x7f),
642};
643
644static int mt6358_sync_vcn33_setting(struct device *dev)
645{
646 struct mt6397_chip *mt6397 = dev_get_drvdata(dev: dev->parent);
647 unsigned int val;
648 int ret;
649
650 /*
651 * VCN33_WIFI and VCN33_BT are two separate enable bits for the same
652 * regulator. They share the same voltage setting and output pin.
653 * Instead of having two potentially conflicting regulators, just have
654 * one VCN33 regulator. Sync the two enable bits and only use one in
655 * the regulator device.
656 */
657 ret = regmap_read(map: mt6397->regmap, MT6358_LDO_VCN33_CON0_1, val: &val);
658 if (ret) {
659 dev_err(dev, "Failed to read VCN33_WIFI setting\n");
660 return ret;
661 }
662
663 if (!(val & BIT(0)))
664 return 0;
665
666 /* Sync VCN33_WIFI enable status to VCN33_BT */
667 ret = regmap_update_bits(map: mt6397->regmap, MT6358_LDO_VCN33_CON0_0, BIT(0), BIT(0));
668 if (ret) {
669 dev_err(dev, "Failed to sync VCN33_WIFI setting to VCN33_BT\n");
670 return ret;
671 }
672
673 /* Disable VCN33_WIFI */
674 ret = regmap_update_bits(map: mt6397->regmap, MT6358_LDO_VCN33_CON0_1, BIT(0), val: 0);
675 if (ret) {
676 dev_err(dev, "Failed to disable VCN33_WIFI\n");
677 return ret;
678 }
679
680 return 0;
681}
682
683static int mt6358_regulator_probe(struct platform_device *pdev)
684{
685 struct mt6397_chip *mt6397 = dev_get_drvdata(dev: pdev->dev.parent);
686 struct regulator_config config = {};
687 struct regulator_dev *rdev;
688 const struct mt6358_regulator_info *mt6358_info;
689 int i, max_regulator, ret;
690
691 switch (mt6397->chip_id) {
692 case MT6358_CHIP_ID:
693 max_regulator = MT6358_MAX_REGULATOR;
694 mt6358_info = mt6358_regulators;
695 break;
696 case MT6366_CHIP_ID:
697 max_regulator = MT6366_MAX_REGULATOR;
698 mt6358_info = mt6366_regulators;
699 break;
700 default:
701 dev_err(&pdev->dev, "unsupported chip ID: %d\n", mt6397->chip_id);
702 return -EINVAL;
703 }
704
705 ret = mt6358_sync_vcn33_setting(dev: &pdev->dev);
706 if (ret)
707 return ret;
708
709 for (i = 0; i < max_regulator; i++) {
710 config.dev = &pdev->dev;
711 config.regmap = mt6397->regmap;
712
713 rdev = devm_regulator_register(dev: &pdev->dev,
714 regulator_desc: &mt6358_info[i].desc,
715 config: &config);
716 if (IS_ERR(ptr: rdev)) {
717 dev_err(&pdev->dev, "failed to register %s\n",
718 mt6358_info[i].desc.name);
719 return PTR_ERR(ptr: rdev);
720 }
721 }
722
723 return 0;
724}
725
726static const struct platform_device_id mt6358_platform_ids[] = {
727 {"mt6358-regulator", 0},
728 { /* sentinel */ },
729};
730MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
731
732static struct platform_driver mt6358_regulator_driver = {
733 .driver = {
734 .name = "mt6358-regulator",
735 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
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");
746

source code of linux/drivers/regulator/mt6358-regulator.c