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 }; 246 247 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 } 252 253 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 } 269 270 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 } 294 295 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 } 312 313 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 } 327 328 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 } 354 355 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 }; 505 506 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