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 */
25 struct 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
140 static const struct linear_range buck_volt_range1[] = {
141 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
142 };
143
144 static const struct linear_range buck_volt_range2[] = {
145 REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500),
146 };
147
148 static const struct linear_range buck_volt_range3[] = {
149 REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
150 };
151
152 static const struct linear_range buck_volt_range4[] = {
153 REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500),
154 };
155
156 static const u32 vdram2_voltages[] = {
157 600000, 1800000,
158 };
159
160 static const u32 vsim_voltages[] = {
161 1700000, 1800000, 2700000, 3000000, 3100000,
162 };
163
164 static const u32 vibr_voltages[] = {
165 1200000, 1300000, 1500000, 1800000,
166 2000000, 2800000, 3000000, 3300000,
167 };
168
169 static const u32 vusb_voltages[] = {
170 3000000, 3100000,
171 };
172
173 static const u32 vcamd_voltages[] = {
174 900000, 1000000, 1100000, 1200000,
175 1300000, 1500000, 1800000,
176 };
177
178 static const u32 vefuse_voltages[] = {
179 1700000, 1800000, 1900000,
180 };
181
182 static const u32 vmch_vemc_voltages[] = {
183 2900000, 3000000, 3300000,
184 };
185
186 static const u32 vcama_voltages[] = {
187 1800000, 2500000, 2700000,
188 2800000, 2900000, 3000000,
189 };
190
191 static const u32 vcn33_bt_wifi_voltages[] = {
192 3300000, 3400000, 3500000,
193 };
194
195 static const u32 vmc_voltages[] = {
196 1800000, 2900000, 3000000, 3300000,
197 };
198
199 static const u32 vldo28_voltages[] = {
200 2800000, 3000000,
201 };
202
203 static const u32 vdram2_idx[] = {
204 0, 12,
205 };
206
207 static const u32 vsim_idx[] = {
208 3, 4, 8, 11, 12,
209 };
210
211 static const u32 vibr_idx[] = {
212 0, 1, 2, 4, 5, 9, 11, 13,
213 };
214
215 static const u32 vusb_idx[] = {
216 3, 4,
217 };
218
219 static const u32 vcamd_idx[] = {
220 3, 4, 5, 6, 7, 9, 12,
221 };
222
223 static const u32 vefuse_idx[] = {
224 11, 12, 13,
225 };
226
227 static const u32 vmch_vemc_idx[] = {
228 2, 3, 5,
229 };
230
231 static const u32 vcama_idx[] = {
232 0, 7, 9, 10, 11, 12,
233 };
234
235 static const u32 vcn33_bt_wifi_idx[] = {
236 1, 2, 3,
237 };
238
239 static const u32 vmc_idx[] = {
240 4, 10, 11, 13,
241 };
242
243 static const u32 vldo28_idx[] = {
244 1, 3,
245 };
246
mt6358_map_mode(unsigned int mode)247 static 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
mt6358_set_voltage_sel(struct regulator_dev * rdev,unsigned int selector)253 static 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
mt6358_get_voltage_sel(struct regulator_dev * rdev)270 static 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
mt6358_get_buck_voltage_sel(struct regulator_dev * rdev)295 static 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
mt6358_get_status(struct regulator_dev * rdev)313 static 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
mt6358_regulator_set_mode(struct regulator_dev * rdev,unsigned int mode)328 static 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
mt6358_regulator_get_mode(struct regulator_dev * rdev)355 static 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
377 static 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
391 static 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
403 static 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) */
412 static 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
mt6358_regulator_probe(struct platform_device * pdev)506 static 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
531 static const struct platform_device_id mt6358_platform_ids[] = {
532 {"mt6358-regulator", 0},
533 { /* sentinel */ },
534 };
535 MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
536
537 static 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
545 module_platform_driver(mt6358_regulator_driver);
546
547 MODULE_AUTHOR("Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>");
548 MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
549 MODULE_LICENSE("GPL");
550
