1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2018, The Linux Foundation. All rights reserved. 3 4 #define pr_fmt(fmt) "%s: " fmt, __func__ 5 6 #include <linux/err.h> 7 #include <linux/kernel.h> 8 #include <linux/module.h> 9 #include <linux/of.h> 10 #include <linux/of_device.h> 11 #include <linux/platform_device.h> 12 #include <linux/slab.h> 13 #include <linux/string.h> 14 #include <linux/regulator/driver.h> 15 #include <linux/regulator/machine.h> 16 #include <linux/regulator/of_regulator.h> 17 18 #include <soc/qcom/cmd-db.h> 19 #include <soc/qcom/rpmh.h> 20 21 #include <dt-bindings/regulator/qcom,rpmh-regulator.h> 22 23 /** 24 * enum rpmh_regulator_type - supported RPMh accelerator types 25 * %VRM: RPMh VRM accelerator which supports voting on enable, voltage, 26 * and mode of LDO, SMPS, and BOB type PMIC regulators. 27 * %XOB: RPMh XOB accelerator which supports voting on the enable state 28 * of PMIC regulators. 29 */ 30 enum rpmh_regulator_type { 31 VRM, 32 XOB, 33 }; 34 35 #define RPMH_REGULATOR_REG_VRM_VOLTAGE 0x0 36 #define RPMH_REGULATOR_REG_ENABLE 0x4 37 #define RPMH_REGULATOR_REG_VRM_MODE 0x8 38 39 #define PMIC4_LDO_MODE_RETENTION 4 40 #define PMIC4_LDO_MODE_LPM 5 41 #define PMIC4_LDO_MODE_HPM 7 42 43 #define PMIC4_SMPS_MODE_RETENTION 4 44 #define PMIC4_SMPS_MODE_PFM 5 45 #define PMIC4_SMPS_MODE_AUTO 6 46 #define PMIC4_SMPS_MODE_PWM 7 47 48 #define PMIC4_BOB_MODE_PASS 0 49 #define PMIC4_BOB_MODE_PFM 1 50 #define PMIC4_BOB_MODE_AUTO 2 51 #define PMIC4_BOB_MODE_PWM 3 52 53 #define PMIC5_LDO_MODE_RETENTION 3 54 #define PMIC5_LDO_MODE_LPM 4 55 #define PMIC5_LDO_MODE_HPM 7 56 57 #define PMIC5_SMPS_MODE_RETENTION 3 58 #define PMIC5_SMPS_MODE_PFM 4 59 #define PMIC5_SMPS_MODE_AUTO 6 60 #define PMIC5_SMPS_MODE_PWM 7 61 62 #define PMIC5_BOB_MODE_PASS 2 63 #define PMIC5_BOB_MODE_PFM 4 64 #define PMIC5_BOB_MODE_AUTO 6 65 #define PMIC5_BOB_MODE_PWM 7 66 67 /** 68 * struct rpmh_vreg_hw_data - RPMh regulator hardware configurations 69 * @regulator_type: RPMh accelerator type used to manage this 70 * regulator 71 * @ops: Pointer to regulator ops callback structure 72 * @voltage_range: The single range of voltages supported by this 73 * PMIC regulator type 74 * @n_voltages: The number of unique voltage set points defined 75 * by voltage_range 76 * @hpm_min_load_uA: Minimum load current in microamps that requires 77 * high power mode (HPM) operation. This is used 78 * for LDO hardware type regulators only. 79 * @pmic_mode_map: Array indexed by regulator framework mode 80 * containing PMIC hardware modes. Must be large 81 * enough to index all framework modes supported 82 * by this regulator hardware type. 83 * @of_map_mode: Maps an RPMH_REGULATOR_MODE_* mode value defined 84 * in device tree to a regulator framework mode 85 */ 86 struct rpmh_vreg_hw_data { 87 enum rpmh_regulator_type regulator_type; 88 const struct regulator_ops *ops; 89 const struct regulator_linear_range voltage_range; 90 int n_voltages; 91 int hpm_min_load_uA; 92 const int *pmic_mode_map; 93 unsigned int (*of_map_mode)(unsigned int mode); 94 }; 95 96 /** 97 * struct rpmh_vreg - individual RPMh regulator data structure encapsulating a 98 * single regulator device 99 * @dev: Device pointer for the top-level PMIC RPMh 100 * regulator parent device. This is used as a 101 * handle in RPMh write requests. 102 * @addr: Base address of the regulator resource within 103 * an RPMh accelerator 104 * @rdesc: Regulator descriptor 105 * @hw_data: PMIC regulator configuration data for this RPMh 106 * regulator 107 * @always_wait_for_ack: Boolean flag indicating if a request must always 108 * wait for an ACK from RPMh before continuing even 109 * if it corresponds to a strictly lower power 110 * state (e.g. enabled --> disabled). 111 * @enabled: Flag indicating if the regulator is enabled or 112 * not 113 * @bypassed: Boolean indicating if the regulator is in 114 * bypass (pass-through) mode or not. This is 115 * only used by BOB rpmh-regulator resources. 116 * @voltage_selector: Selector used for get_voltage_sel() and 117 * set_voltage_sel() callbacks 118 * @mode: RPMh VRM regulator current framework mode 119 */ 120 struct rpmh_vreg { 121 struct device *dev; 122 u32 addr; 123 struct regulator_desc rdesc; 124 const struct rpmh_vreg_hw_data *hw_data; 125 bool always_wait_for_ack; 126 127 int enabled; 128 bool bypassed; 129 int voltage_selector; 130 unsigned int mode; 131 }; 132 133 /** 134 * struct rpmh_vreg_init_data - initialization data for an RPMh regulator 135 * @name: Name for the regulator which also corresponds 136 * to the device tree subnode name of the regulator 137 * @resource_name: RPMh regulator resource name format string. 138 * This must include exactly one field: '%s' which 139 * is filled at run-time with the PMIC ID provided 140 * by device tree property qcom,pmic-id. Example: 141 * "ldo%s1" for RPMh resource "ldoa1". 142 * @supply_name: Parent supply regulator name 143 * @hw_data: Configuration data for this PMIC regulator type 144 */ 145 struct rpmh_vreg_init_data { 146 const char *name; 147 const char *resource_name; 148 const char *supply_name; 149 const struct rpmh_vreg_hw_data *hw_data; 150 }; 151 152 /** 153 * rpmh_regulator_send_request() - send the request to RPMh 154 * @vreg: Pointer to the RPMh regulator 155 * @cmd: Pointer to the RPMh command to send 156 * @wait_for_ack: Boolean indicating if execution must wait until the 157 * request has been acknowledged as complete 158 * 159 * Return: 0 on success, errno on failure 160 */ 161 static int rpmh_regulator_send_request(struct rpmh_vreg *vreg, 162 struct tcs_cmd *cmd, bool wait_for_ack) 163 { 164 int ret; 165 166 if (wait_for_ack || vreg->always_wait_for_ack) 167 ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1); 168 else 169 ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 170 1); 171 172 return ret; 173 } 174 175 static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev, 176 unsigned int selector, bool wait_for_ack) 177 { 178 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 179 struct tcs_cmd cmd = { 180 .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE, 181 }; 182 int ret; 183 184 /* VRM voltage control register is set with voltage in millivolts. */ 185 cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev, 186 selector), 1000); 187 188 ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack); 189 if (!ret) 190 vreg->voltage_selector = selector; 191 192 return ret; 193 } 194 195 static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev, 196 unsigned int selector) 197 { 198 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 199 200 if (vreg->enabled == -EINVAL) { 201 /* 202 * Cache the voltage and send it later when the regulator is 203 * enabled or disabled. 204 */ 205 vreg->voltage_selector = selector; 206 return 0; 207 } 208 209 return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector, 210 selector > vreg->voltage_selector); 211 } 212 213 static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev) 214 { 215 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 216 217 return vreg->voltage_selector; 218 } 219 220 static int rpmh_regulator_is_enabled(struct regulator_dev *rdev) 221 { 222 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 223 224 return vreg->enabled; 225 } 226 227 static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev, 228 bool enable) 229 { 230 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 231 struct tcs_cmd cmd = { 232 .addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE, 233 .data = enable, 234 }; 235 int ret; 236 237 if (vreg->enabled == -EINVAL && 238 vreg->voltage_selector != -ENOTRECOVERABLE) { 239 ret = _rpmh_regulator_vrm_set_voltage_sel(rdev, 240 vreg->voltage_selector, true); 241 if (ret < 0) 242 return ret; 243 } 244 245 ret = rpmh_regulator_send_request(vreg, &cmd, enable); 246 if (!ret) 247 vreg->enabled = enable; 248 249 return ret; 250 } 251 252 static int rpmh_regulator_enable(struct regulator_dev *rdev) 253 { 254 return rpmh_regulator_set_enable_state(rdev, true); 255 } 256 257 static int rpmh_regulator_disable(struct regulator_dev *rdev) 258 { 259 return rpmh_regulator_set_enable_state(rdev, false); 260 } 261 262 static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg, 263 unsigned int mode, bool bypassed) 264 { 265 struct tcs_cmd cmd = { 266 .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE, 267 }; 268 int pmic_mode; 269 270 if (mode > REGULATOR_MODE_STANDBY) 271 return -EINVAL; 272 273 pmic_mode = vreg->hw_data->pmic_mode_map[mode]; 274 if (pmic_mode < 0) 275 return pmic_mode; 276 277 if (bypassed) 278 cmd.data = PMIC4_BOB_MODE_PASS; 279 else 280 cmd.data = pmic_mode; 281 282 return rpmh_regulator_send_request(vreg, &cmd, true); 283 } 284 285 static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev, 286 unsigned int mode) 287 { 288 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 289 int ret; 290 291 if (mode == vreg->mode) 292 return 0; 293 294 ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed); 295 if (!ret) 296 vreg->mode = mode; 297 298 return ret; 299 } 300 301 static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev) 302 { 303 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 304 305 return vreg->mode; 306 } 307 308 /** 309 * rpmh_regulator_vrm_set_load() - set the regulator mode based upon the load 310 * current requested 311 * @rdev: Regulator device pointer for the rpmh-regulator 312 * @load_uA: Aggregated load current in microamps 313 * 314 * This function is used in the regulator_ops for VRM type RPMh regulator 315 * devices. 316 * 317 * Return: 0 on success, errno on failure 318 */ 319 static int rpmh_regulator_vrm_set_load(struct regulator_dev *rdev, int load_uA) 320 { 321 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 322 unsigned int mode; 323 324 if (load_uA >= vreg->hw_data->hpm_min_load_uA) 325 mode = REGULATOR_MODE_NORMAL; 326 else 327 mode = REGULATOR_MODE_IDLE; 328 329 return rpmh_regulator_vrm_set_mode(rdev, mode); 330 } 331 332 static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev, 333 bool enable) 334 { 335 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 336 int ret; 337 338 if (vreg->bypassed == enable) 339 return 0; 340 341 ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable); 342 if (!ret) 343 vreg->bypassed = enable; 344 345 return ret; 346 } 347 348 static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev, 349 bool *enable) 350 { 351 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); 352 353 *enable = vreg->bypassed; 354 355 return 0; 356 } 357 358 static const struct regulator_ops rpmh_regulator_vrm_ops = { 359 .enable = rpmh_regulator_enable, 360 .disable = rpmh_regulator_disable, 361 .is_enabled = rpmh_regulator_is_enabled, 362 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, 363 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, 364 .list_voltage = regulator_list_voltage_linear_range, 365 .set_mode = rpmh_regulator_vrm_set_mode, 366 .get_mode = rpmh_regulator_vrm_get_mode, 367 }; 368 369 static const struct regulator_ops rpmh_regulator_vrm_drms_ops = { 370 .enable = rpmh_regulator_enable, 371 .disable = rpmh_regulator_disable, 372 .is_enabled = rpmh_regulator_is_enabled, 373 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, 374 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, 375 .list_voltage = regulator_list_voltage_linear_range, 376 .set_mode = rpmh_regulator_vrm_set_mode, 377 .get_mode = rpmh_regulator_vrm_get_mode, 378 .set_load = rpmh_regulator_vrm_set_load, 379 }; 380 381 static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = { 382 .enable = rpmh_regulator_enable, 383 .disable = rpmh_regulator_disable, 384 .is_enabled = rpmh_regulator_is_enabled, 385 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, 386 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, 387 .list_voltage = regulator_list_voltage_linear_range, 388 .set_mode = rpmh_regulator_vrm_set_mode, 389 .get_mode = rpmh_regulator_vrm_get_mode, 390 .set_bypass = rpmh_regulator_vrm_set_bypass, 391 .get_bypass = rpmh_regulator_vrm_get_bypass, 392 }; 393 394 static const struct regulator_ops rpmh_regulator_xob_ops = { 395 .enable = rpmh_regulator_enable, 396 .disable = rpmh_regulator_disable, 397 .is_enabled = rpmh_regulator_is_enabled, 398 }; 399 400 /** 401 * rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator 402 * vreg: Pointer to the individual rpmh-regulator resource 403 * dev: Pointer to the top level rpmh-regulator PMIC device 404 * node: Pointer to the individual rpmh-regulator resource 405 * device node 406 * pmic_id: String used to identify the top level rpmh-regulator 407 * PMIC device on the board 408 * pmic_rpmh_data: Pointer to a null-terminated array of rpmh-regulator 409 * resources defined for the top level PMIC device 410 * 411 * Return: 0 on success, errno on failure 412 */ 413 static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev, 414 struct device_node *node, const char *pmic_id, 415 const struct rpmh_vreg_init_data *pmic_rpmh_data) 416 { 417 struct regulator_config reg_config = {}; 418 char rpmh_resource_name[20] = ""; 419 const struct rpmh_vreg_init_data *rpmh_data; 420 struct regulator_init_data *init_data; 421 struct regulator_dev *rdev; 422 int ret; 423 424 vreg->dev = dev; 425 426 for (rpmh_data = pmic_rpmh_data; rpmh_data->name; rpmh_data++) 427 if (of_node_name_eq(node, rpmh_data->name)) 428 break; 429 430 if (!rpmh_data->name) { 431 dev_err(dev, "Unknown regulator %pOFn\n", node); 432 return -EINVAL; 433 } 434 435 scnprintf(rpmh_resource_name, sizeof(rpmh_resource_name), 436 rpmh_data->resource_name, pmic_id); 437 438 vreg->addr = cmd_db_read_addr(rpmh_resource_name); 439 if (!vreg->addr) { 440 dev_err(dev, "%pOFn: could not find RPMh address for resource %s\n", 441 node, rpmh_resource_name); 442 return -ENODEV; 443 } 444 445 vreg->rdesc.name = rpmh_data->name; 446 vreg->rdesc.supply_name = rpmh_data->supply_name; 447 vreg->hw_data = rpmh_data->hw_data; 448 449 vreg->enabled = -EINVAL; 450 vreg->voltage_selector = -ENOTRECOVERABLE; 451 vreg->mode = REGULATOR_MODE_INVALID; 452 453 if (rpmh_data->hw_data->n_voltages) { 454 vreg->rdesc.linear_ranges = &rpmh_data->hw_data->voltage_range; 455 vreg->rdesc.n_linear_ranges = 1; 456 vreg->rdesc.n_voltages = rpmh_data->hw_data->n_voltages; 457 } 458 459 vreg->always_wait_for_ack = of_property_read_bool(node, 460 "qcom,always-wait-for-ack"); 461 462 vreg->rdesc.owner = THIS_MODULE; 463 vreg->rdesc.type = REGULATOR_VOLTAGE; 464 vreg->rdesc.ops = vreg->hw_data->ops; 465 vreg->rdesc.of_map_mode = vreg->hw_data->of_map_mode; 466 467 init_data = of_get_regulator_init_data(dev, node, &vreg->rdesc); 468 if (!init_data) 469 return -ENOMEM; 470 471 if (rpmh_data->hw_data->regulator_type == XOB && 472 init_data->constraints.min_uV && 473 init_data->constraints.min_uV == init_data->constraints.max_uV) { 474 vreg->rdesc.fixed_uV = init_data->constraints.min_uV; 475 vreg->rdesc.n_voltages = 1; 476 } 477 478 reg_config.dev = dev; 479 reg_config.init_data = init_data; 480 reg_config.of_node = node; 481 reg_config.driver_data = vreg; 482 483 rdev = devm_regulator_register(dev, &vreg->rdesc, ®_config); 484 if (IS_ERR(rdev)) { 485 ret = PTR_ERR(rdev); 486 dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n", 487 node, ret); 488 return ret; 489 } 490 491 dev_dbg(dev, "%pOFn regulator registered for RPMh resource %s @ 0x%05X\n", 492 node, rpmh_resource_name, vreg->addr); 493 494 return 0; 495 } 496 497 static const int pmic_mode_map_pmic4_ldo[REGULATOR_MODE_STANDBY + 1] = { 498 [REGULATOR_MODE_INVALID] = -EINVAL, 499 [REGULATOR_MODE_STANDBY] = PMIC4_LDO_MODE_RETENTION, 500 [REGULATOR_MODE_IDLE] = PMIC4_LDO_MODE_LPM, 501 [REGULATOR_MODE_NORMAL] = PMIC4_LDO_MODE_HPM, 502 [REGULATOR_MODE_FAST] = -EINVAL, 503 }; 504 505 static const int pmic_mode_map_pmic5_ldo[REGULATOR_MODE_STANDBY + 1] = { 506 [REGULATOR_MODE_INVALID] = -EINVAL, 507 [REGULATOR_MODE_STANDBY] = PMIC5_LDO_MODE_RETENTION, 508 [REGULATOR_MODE_IDLE] = PMIC5_LDO_MODE_LPM, 509 [REGULATOR_MODE_NORMAL] = PMIC5_LDO_MODE_HPM, 510 [REGULATOR_MODE_FAST] = -EINVAL, 511 }; 512 513 static unsigned int rpmh_regulator_pmic4_ldo_of_map_mode(unsigned int rpmh_mode) 514 { 515 unsigned int mode; 516 517 switch (rpmh_mode) { 518 case RPMH_REGULATOR_MODE_HPM: 519 mode = REGULATOR_MODE_NORMAL; 520 break; 521 case RPMH_REGULATOR_MODE_LPM: 522 mode = REGULATOR_MODE_IDLE; 523 break; 524 case RPMH_REGULATOR_MODE_RET: 525 mode = REGULATOR_MODE_STANDBY; 526 break; 527 default: 528 mode = REGULATOR_MODE_INVALID; 529 break; 530 } 531 532 return mode; 533 } 534 535 static const int pmic_mode_map_pmic4_smps[REGULATOR_MODE_STANDBY + 1] = { 536 [REGULATOR_MODE_INVALID] = -EINVAL, 537 [REGULATOR_MODE_STANDBY] = PMIC4_SMPS_MODE_RETENTION, 538 [REGULATOR_MODE_IDLE] = PMIC4_SMPS_MODE_PFM, 539 [REGULATOR_MODE_NORMAL] = PMIC4_SMPS_MODE_AUTO, 540 [REGULATOR_MODE_FAST] = PMIC4_SMPS_MODE_PWM, 541 }; 542 543 static const int pmic_mode_map_pmic5_smps[REGULATOR_MODE_STANDBY + 1] = { 544 [REGULATOR_MODE_INVALID] = -EINVAL, 545 [REGULATOR_MODE_STANDBY] = PMIC5_SMPS_MODE_RETENTION, 546 [REGULATOR_MODE_IDLE] = PMIC5_SMPS_MODE_PFM, 547 [REGULATOR_MODE_NORMAL] = PMIC5_SMPS_MODE_AUTO, 548 [REGULATOR_MODE_FAST] = PMIC5_SMPS_MODE_PWM, 549 }; 550 551 static unsigned int 552 rpmh_regulator_pmic4_smps_of_map_mode(unsigned int rpmh_mode) 553 { 554 unsigned int mode; 555 556 switch (rpmh_mode) { 557 case RPMH_REGULATOR_MODE_HPM: 558 mode = REGULATOR_MODE_FAST; 559 break; 560 case RPMH_REGULATOR_MODE_AUTO: 561 mode = REGULATOR_MODE_NORMAL; 562 break; 563 case RPMH_REGULATOR_MODE_LPM: 564 mode = REGULATOR_MODE_IDLE; 565 break; 566 case RPMH_REGULATOR_MODE_RET: 567 mode = REGULATOR_MODE_STANDBY; 568 break; 569 default: 570 mode = REGULATOR_MODE_INVALID; 571 break; 572 } 573 574 return mode; 575 } 576 577 static const int pmic_mode_map_pmic4_bob[REGULATOR_MODE_STANDBY + 1] = { 578 [REGULATOR_MODE_INVALID] = -EINVAL, 579 [REGULATOR_MODE_STANDBY] = -EINVAL, 580 [REGULATOR_MODE_IDLE] = PMIC4_BOB_MODE_PFM, 581 [REGULATOR_MODE_NORMAL] = PMIC4_BOB_MODE_AUTO, 582 [REGULATOR_MODE_FAST] = PMIC4_BOB_MODE_PWM, 583 }; 584 585 static const int pmic_mode_map_pmic5_bob[REGULATOR_MODE_STANDBY + 1] = { 586 [REGULATOR_MODE_INVALID] = -EINVAL, 587 [REGULATOR_MODE_STANDBY] = -EINVAL, 588 [REGULATOR_MODE_IDLE] = PMIC5_BOB_MODE_PFM, 589 [REGULATOR_MODE_NORMAL] = PMIC5_BOB_MODE_AUTO, 590 [REGULATOR_MODE_FAST] = PMIC5_BOB_MODE_PWM, 591 }; 592 593 static unsigned int rpmh_regulator_pmic4_bob_of_map_mode(unsigned int rpmh_mode) 594 { 595 unsigned int mode; 596 597 switch (rpmh_mode) { 598 case RPMH_REGULATOR_MODE_HPM: 599 mode = REGULATOR_MODE_FAST; 600 break; 601 case RPMH_REGULATOR_MODE_AUTO: 602 mode = REGULATOR_MODE_NORMAL; 603 break; 604 case RPMH_REGULATOR_MODE_LPM: 605 mode = REGULATOR_MODE_IDLE; 606 break; 607 default: 608 mode = REGULATOR_MODE_INVALID; 609 break; 610 } 611 612 return mode; 613 } 614 615 static const struct rpmh_vreg_hw_data pmic4_pldo = { 616 .regulator_type = VRM, 617 .ops = &rpmh_regulator_vrm_drms_ops, 618 .voltage_range = REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000), 619 .n_voltages = 256, 620 .hpm_min_load_uA = 10000, 621 .pmic_mode_map = pmic_mode_map_pmic4_ldo, 622 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 623 }; 624 625 static const struct rpmh_vreg_hw_data pmic4_pldo_lv = { 626 .regulator_type = VRM, 627 .ops = &rpmh_regulator_vrm_drms_ops, 628 .voltage_range = REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000), 629 .n_voltages = 128, 630 .hpm_min_load_uA = 10000, 631 .pmic_mode_map = pmic_mode_map_pmic4_ldo, 632 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 633 }; 634 635 static const struct rpmh_vreg_hw_data pmic4_nldo = { 636 .regulator_type = VRM, 637 .ops = &rpmh_regulator_vrm_drms_ops, 638 .voltage_range = REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000), 639 .n_voltages = 128, 640 .hpm_min_load_uA = 30000, 641 .pmic_mode_map = pmic_mode_map_pmic4_ldo, 642 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 643 }; 644 645 static const struct rpmh_vreg_hw_data pmic4_hfsmps3 = { 646 .regulator_type = VRM, 647 .ops = &rpmh_regulator_vrm_ops, 648 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000), 649 .n_voltages = 216, 650 .pmic_mode_map = pmic_mode_map_pmic4_smps, 651 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, 652 }; 653 654 static const struct rpmh_vreg_hw_data pmic4_ftsmps426 = { 655 .regulator_type = VRM, 656 .ops = &rpmh_regulator_vrm_ops, 657 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000), 658 .n_voltages = 259, 659 .pmic_mode_map = pmic_mode_map_pmic4_smps, 660 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, 661 }; 662 663 static const struct rpmh_vreg_hw_data pmic4_bob = { 664 .regulator_type = VRM, 665 .ops = &rpmh_regulator_vrm_bypass_ops, 666 .voltage_range = REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000), 667 .n_voltages = 84, 668 .pmic_mode_map = pmic_mode_map_pmic4_bob, 669 .of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode, 670 }; 671 672 static const struct rpmh_vreg_hw_data pmic4_lvs = { 673 .regulator_type = XOB, 674 .ops = &rpmh_regulator_xob_ops, 675 /* LVS hardware does not support voltage or mode configuration. */ 676 }; 677 678 static const struct rpmh_vreg_hw_data pmic5_pldo = { 679 .regulator_type = VRM, 680 .ops = &rpmh_regulator_vrm_drms_ops, 681 .voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 255, 8000), 682 .n_voltages = 256, 683 .hpm_min_load_uA = 10000, 684 .pmic_mode_map = pmic_mode_map_pmic5_ldo, 685 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 686 }; 687 688 static const struct rpmh_vreg_hw_data pmic5_pldo_lv = { 689 .regulator_type = VRM, 690 .ops = &rpmh_regulator_vrm_drms_ops, 691 .voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 62, 8000), 692 .n_voltages = 63, 693 .hpm_min_load_uA = 10000, 694 .pmic_mode_map = pmic_mode_map_pmic5_ldo, 695 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 696 }; 697 698 static const struct rpmh_vreg_hw_data pmic5_nldo = { 699 .regulator_type = VRM, 700 .ops = &rpmh_regulator_vrm_drms_ops, 701 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 123, 8000), 702 .n_voltages = 124, 703 .hpm_min_load_uA = 30000, 704 .pmic_mode_map = pmic_mode_map_pmic5_ldo, 705 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, 706 }; 707 708 static const struct rpmh_vreg_hw_data pmic5_hfsmps510 = { 709 .regulator_type = VRM, 710 .ops = &rpmh_regulator_vrm_ops, 711 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000), 712 .n_voltages = 216, 713 .pmic_mode_map = pmic_mode_map_pmic5_smps, 714 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, 715 }; 716 717 static const struct rpmh_vreg_hw_data pmic5_ftsmps510 = { 718 .regulator_type = VRM, 719 .ops = &rpmh_regulator_vrm_ops, 720 .voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 263, 4000), 721 .n_voltages = 264, 722 .pmic_mode_map = pmic_mode_map_pmic5_smps, 723 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, 724 }; 725 726 static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = { 727 .regulator_type = VRM, 728 .ops = &rpmh_regulator_vrm_ops, 729 .voltage_range = REGULATOR_LINEAR_RANGE(2800000, 0, 4, 1600), 730 .n_voltages = 5, 731 .pmic_mode_map = pmic_mode_map_pmic5_smps, 732 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, 733 }; 734 735 static const struct rpmh_vreg_hw_data pmic5_bob = { 736 .regulator_type = VRM, 737 .ops = &rpmh_regulator_vrm_bypass_ops, 738 .voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 135, 32000), 739 .n_voltages = 136, 740 .pmic_mode_map = pmic_mode_map_pmic5_bob, 741 .of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode, 742 }; 743 744 #define RPMH_VREG(_name, _resource_name, _hw_data, _supply_name) \ 745 { \ 746 .name = _name, \ 747 .resource_name = _resource_name, \ 748 .hw_data = _hw_data, \ 749 .supply_name = _supply_name, \ 750 } 751 752 static const struct rpmh_vreg_init_data pm8998_vreg_data[] = { 753 RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"), 754 RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"), 755 RPMH_VREG("smps3", "smp%s3", &pmic4_hfsmps3, "vdd-s3"), 756 RPMH_VREG("smps4", "smp%s4", &pmic4_hfsmps3, "vdd-s4"), 757 RPMH_VREG("smps5", "smp%s5", &pmic4_hfsmps3, "vdd-s5"), 758 RPMH_VREG("smps6", "smp%s6", &pmic4_ftsmps426, "vdd-s6"), 759 RPMH_VREG("smps7", "smp%s7", &pmic4_ftsmps426, "vdd-s7"), 760 RPMH_VREG("smps8", "smp%s8", &pmic4_ftsmps426, "vdd-s8"), 761 RPMH_VREG("smps9", "smp%s9", &pmic4_ftsmps426, "vdd-s9"), 762 RPMH_VREG("smps10", "smp%s10", &pmic4_ftsmps426, "vdd-s10"), 763 RPMH_VREG("smps11", "smp%s11", &pmic4_ftsmps426, "vdd-s11"), 764 RPMH_VREG("smps12", "smp%s12", &pmic4_ftsmps426, "vdd-s12"), 765 RPMH_VREG("smps13", "smp%s13", &pmic4_ftsmps426, "vdd-s13"), 766 RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l27"), 767 RPMH_VREG("ldo2", "ldo%s2", &pmic4_nldo, "vdd-l2-l8-l17"), 768 RPMH_VREG("ldo3", "ldo%s3", &pmic4_nldo, "vdd-l3-l11"), 769 RPMH_VREG("ldo4", "ldo%s4", &pmic4_nldo, "vdd-l4-l5"), 770 RPMH_VREG("ldo5", "ldo%s5", &pmic4_nldo, "vdd-l4-l5"), 771 RPMH_VREG("ldo6", "ldo%s6", &pmic4_pldo, "vdd-l6"), 772 RPMH_VREG("ldo7", "ldo%s7", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), 773 RPMH_VREG("ldo8", "ldo%s8", &pmic4_nldo, "vdd-l2-l8-l17"), 774 RPMH_VREG("ldo9", "ldo%s9", &pmic4_pldo, "vdd-l9"), 775 RPMH_VREG("ldo10", "ldo%s10", &pmic4_pldo, "vdd-l10-l23-l25"), 776 RPMH_VREG("ldo11", "ldo%s11", &pmic4_nldo, "vdd-l3-l11"), 777 RPMH_VREG("ldo12", "ldo%s12", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), 778 RPMH_VREG("ldo13", "ldo%s13", &pmic4_pldo, "vdd-l13-l19-l21"), 779 RPMH_VREG("ldo14", "ldo%s14", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), 780 RPMH_VREG("ldo15", "ldo%s15", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), 781 RPMH_VREG("ldo16", "ldo%s16", &pmic4_pldo, "vdd-l16-l28"), 782 RPMH_VREG("ldo17", "ldo%s17", &pmic4_nldo, "vdd-l2-l8-l17"), 783 RPMH_VREG("ldo18", "ldo%s18", &pmic4_pldo, "vdd-l18-l22"), 784 RPMH_VREG("ldo19", "ldo%s19", &pmic4_pldo, "vdd-l13-l19-l21"), 785 RPMH_VREG("ldo20", "ldo%s20", &pmic4_pldo, "vdd-l20-l24"), 786 RPMH_VREG("ldo21", "ldo%s21", &pmic4_pldo, "vdd-l13-l19-l21"), 787 RPMH_VREG("ldo22", "ldo%s22", &pmic4_pldo, "vdd-l18-l22"), 788 RPMH_VREG("ldo23", "ldo%s23", &pmic4_pldo, "vdd-l10-l23-l25"), 789 RPMH_VREG("ldo24", "ldo%s24", &pmic4_pldo, "vdd-l20-l24"), 790 RPMH_VREG("ldo25", "ldo%s25", &pmic4_pldo, "vdd-l10-l23-l25"), 791 RPMH_VREG("ldo26", "ldo%s26", &pmic4_nldo, "vdd-l26"), 792 RPMH_VREG("ldo27", "ldo%s27", &pmic4_nldo, "vdd-l1-l27"), 793 RPMH_VREG("ldo28", "ldo%s28", &pmic4_pldo, "vdd-l16-l28"), 794 RPMH_VREG("lvs1", "vs%s1", &pmic4_lvs, "vin-lvs-1-2"), 795 RPMH_VREG("lvs2", "vs%s2", &pmic4_lvs, "vin-lvs-1-2"), 796 {}, 797 }; 798 799 static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = { 800 RPMH_VREG("bob", "bob%s1", &pmic4_bob, "vdd-bob"), 801 {}, 802 }; 803 804 static const struct rpmh_vreg_init_data pm8005_vreg_data[] = { 805 RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"), 806 RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"), 807 RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3"), 808 RPMH_VREG("smps4", "smp%s4", &pmic4_ftsmps426, "vdd-s4"), 809 {}, 810 }; 811 812 static const struct rpmh_vreg_init_data pm8150_vreg_data[] = { 813 RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"), 814 RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"), 815 RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"), 816 RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"), 817 RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"), 818 RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"), 819 RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"), 820 RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"), 821 RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"), 822 RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"), 823 RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l8-l11"), 824 RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l10"), 825 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l4-l5-l18"), 826 RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l3-l4-l5-l18"), 827 RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l3-l4-l5-l18"), 828 RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9"), 829 RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l12-l14-l15"), 830 RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l1-l8-l11"), 831 RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9"), 832 RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l2-l10"), 833 RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo, "vdd-l1-l8-l11"), 834 RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), 835 RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l6-l17"), 836 RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), 837 RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), 838 RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l6-l17"), 839 RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l6-l17"), 840 RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, "vdd-l3-l4-l5-l18"), 841 {}, 842 }; 843 844 static const struct rpmh_vreg_init_data pm8150l_vreg_data[] = { 845 RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"), 846 RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"), 847 RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"), 848 RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"), 849 RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"), 850 RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"), 851 RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"), 852 RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"), 853 RPMH_VREG("ldo1", "ldo%s1", &pmic5_pldo_lv, "vdd-l1-l8"), 854 RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l3"), 855 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l2-l3"), 856 RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo, "vdd-l4-l5-l6"), 857 RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l4-l5-l6"), 858 RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l4-l5-l6"), 859 RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l11"), 860 RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l1-l8-l11"), 861 RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l9-l10"), 862 RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l9-l10"), 863 RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l7-l11"), 864 RPMH_VREG("bob", "bob%s1", &pmic5_bob, "vdd-bob"), 865 {}, 866 }; 867 868 static const struct rpmh_vreg_init_data pm8009_vreg_data[] = { 869 RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps510, "vdd-s1"), 870 RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps515, "vdd-s2"), 871 RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"), 872 RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2"), 873 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"), 874 RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"), 875 RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"), 876 RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"), 877 RPMH_VREG("ldo7", "ldo%s6", &pmic5_pldo_lv, "vdd-l7"), 878 {}, 879 }; 880 881 static int rpmh_regulator_probe(struct platform_device *pdev) 882 { 883 struct device *dev = &pdev->dev; 884 const struct rpmh_vreg_init_data *vreg_data; 885 struct device_node *node; 886 struct rpmh_vreg *vreg; 887 const char *pmic_id; 888 int ret; 889 890 vreg_data = of_device_get_match_data(dev); 891 if (!vreg_data) 892 return -ENODEV; 893 894 ret = of_property_read_string(dev->of_node, "qcom,pmic-id", &pmic_id); 895 if (ret < 0) { 896 dev_err(dev, "qcom,pmic-id missing in DT node\n"); 897 return ret; 898 } 899 900 for_each_available_child_of_node(dev->of_node, node) { 901 vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL); 902 if (!vreg) { 903 of_node_put(node); 904 return -ENOMEM; 905 } 906 907 ret = rpmh_regulator_init_vreg(vreg, dev, node, pmic_id, 908 vreg_data); 909 if (ret < 0) { 910 of_node_put(node); 911 return ret; 912 } 913 } 914 915 return 0; 916 } 917 918 static const struct of_device_id rpmh_regulator_match_table[] = { 919 { 920 .compatible = "qcom,pm8005-rpmh-regulators", 921 .data = pm8005_vreg_data, 922 }, 923 { 924 .compatible = "qcom,pm8009-rpmh-regulators", 925 .data = pm8009_vreg_data, 926 }, 927 { 928 .compatible = "qcom,pm8150-rpmh-regulators", 929 .data = pm8150_vreg_data, 930 }, 931 { 932 .compatible = "qcom,pm8150l-rpmh-regulators", 933 .data = pm8150l_vreg_data, 934 }, 935 { 936 .compatible = "qcom,pm8998-rpmh-regulators", 937 .data = pm8998_vreg_data, 938 }, 939 { 940 .compatible = "qcom,pmi8998-rpmh-regulators", 941 .data = pmi8998_vreg_data, 942 }, 943 {} 944 }; 945 MODULE_DEVICE_TABLE(of, rpmh_regulator_match_table); 946 947 static struct platform_driver rpmh_regulator_driver = { 948 .driver = { 949 .name = "qcom-rpmh-regulator", 950 .of_match_table = of_match_ptr(rpmh_regulator_match_table), 951 }, 952 .probe = rpmh_regulator_probe, 953 }; 954 module_platform_driver(rpmh_regulator_driver); 955 956 MODULE_DESCRIPTION("Qualcomm RPMh regulator driver"); 957 MODULE_LICENSE("GPL v2"); 958