1 /* 2 * pv88080-regulator.c - Regulator device driver for PV88080 3 * Copyright (C) 2016 Powerventure Semiconductor Ltd. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #include <linux/err.h> 17 #include <linux/i2c.h> 18 #include <linux/module.h> 19 #include <linux/of.h> 20 #include <linux/init.h> 21 #include <linux/slab.h> 22 #include <linux/regulator/driver.h> 23 #include <linux/regulator/machine.h> 24 #include <linux/regmap.h> 25 #include <linux/irq.h> 26 #include <linux/interrupt.h> 27 #include <linux/regulator/of_regulator.h> 28 #include "pv88080-regulator.h" 29 30 #define PV88080_MAX_REGULATORS 4 31 32 /* PV88080 REGULATOR IDs */ 33 enum { 34 /* BUCKs */ 35 PV88080_ID_BUCK1, 36 PV88080_ID_BUCK2, 37 PV88080_ID_BUCK3, 38 PV88080_ID_HVBUCK, 39 }; 40 41 enum pv88080_types { 42 TYPE_PV88080_AA, 43 TYPE_PV88080_BA, 44 }; 45 46 struct pv88080_regulator { 47 struct regulator_desc desc; 48 unsigned int mode_reg; 49 unsigned int conf2; 50 unsigned int conf5; 51 }; 52 53 struct pv88080 { 54 struct device *dev; 55 struct regmap *regmap; 56 struct regulator_dev *rdev[PV88080_MAX_REGULATORS]; 57 unsigned long type; 58 const struct pv88080_compatible_regmap *regmap_config; 59 }; 60 61 struct pv88080_buck_voltage { 62 int min_uV; 63 int max_uV; 64 int uV_step; 65 }; 66 67 struct pv88080_buck_regmap { 68 /* REGS */ 69 int buck_enable_reg; 70 int buck_vsel_reg; 71 int buck_mode_reg; 72 int buck_limit_reg; 73 int buck_vdac_range_reg; 74 int buck_vrange_gain_reg; 75 /* MASKS */ 76 int buck_enable_mask; 77 int buck_vsel_mask; 78 int buck_limit_mask; 79 }; 80 81 struct pv88080_compatible_regmap { 82 /* BUCK1, 2, 3 */ 83 struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1]; 84 /* HVBUCK */ 85 int hvbuck_enable_reg; 86 int hvbuck_vsel_reg; 87 int hvbuck_enable_mask; 88 int hvbuck_vsel_mask; 89 }; 90 91 static const struct regmap_config pv88080_regmap_config = { 92 .reg_bits = 8, 93 .val_bits = 8, 94 }; 95 96 /* Current limits array (in uA) for BUCK1, BUCK2, BUCK3. 97 * Entry indexes corresponds to register values. 98 */ 99 100 static const unsigned int pv88080_buck1_limits[] = { 101 3230000, 5130000, 6960000, 8790000 102 }; 103 104 static const unsigned int pv88080_buck23_limits[] = { 105 1496000, 2393000, 3291000, 4189000 106 }; 107 108 static const struct pv88080_buck_voltage pv88080_buck_vol[2] = { 109 { 110 .min_uV = 600000, 111 .max_uV = 1393750, 112 .uV_step = 6250, 113 }, 114 { 115 .min_uV = 1400000, 116 .max_uV = 2193750, 117 .uV_step = 6250, 118 }, 119 }; 120 121 static const struct pv88080_compatible_regmap pv88080_aa_regs = { 122 /* BUCK1 */ 123 .buck_regmap[0] = { 124 .buck_enable_reg = PV88080AA_REG_BUCK1_CONF0, 125 .buck_vsel_reg = PV88080AA_REG_BUCK1_CONF0, 126 .buck_mode_reg = PV88080AA_REG_BUCK1_CONF1, 127 .buck_limit_reg = PV88080AA_REG_BUCK1_CONF1, 128 .buck_vdac_range_reg = PV88080AA_REG_BUCK1_CONF2, 129 .buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5, 130 .buck_enable_mask = PV88080_BUCK1_EN, 131 .buck_vsel_mask = PV88080_VBUCK1_MASK, 132 .buck_limit_mask = PV88080_BUCK1_ILIM_MASK, 133 }, 134 /* BUCK2 */ 135 .buck_regmap[1] = { 136 .buck_enable_reg = PV88080AA_REG_BUCK2_CONF0, 137 .buck_vsel_reg = PV88080AA_REG_BUCK2_CONF0, 138 .buck_mode_reg = PV88080AA_REG_BUCK2_CONF1, 139 .buck_limit_reg = PV88080AA_REG_BUCK2_CONF1, 140 .buck_vdac_range_reg = PV88080AA_REG_BUCK2_CONF2, 141 .buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5, 142 .buck_enable_mask = PV88080_BUCK2_EN, 143 .buck_vsel_mask = PV88080_VBUCK2_MASK, 144 .buck_limit_mask = PV88080_BUCK2_ILIM_MASK, 145 }, 146 /* BUCK3 */ 147 .buck_regmap[2] = { 148 .buck_enable_reg = PV88080AA_REG_BUCK3_CONF0, 149 .buck_vsel_reg = PV88080AA_REG_BUCK3_CONF0, 150 .buck_mode_reg = PV88080AA_REG_BUCK3_CONF1, 151 .buck_limit_reg = PV88080AA_REG_BUCK3_CONF1, 152 .buck_vdac_range_reg = PV88080AA_REG_BUCK3_CONF2, 153 .buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5, 154 .buck_enable_mask = PV88080_BUCK3_EN, 155 .buck_vsel_mask = PV88080_VBUCK3_MASK, 156 .buck_limit_mask = PV88080_BUCK3_ILIM_MASK, 157 }, 158 /* HVBUCK */ 159 .hvbuck_enable_reg = PV88080AA_REG_HVBUCK_CONF2, 160 .hvbuck_vsel_reg = PV88080AA_REG_HVBUCK_CONF1, 161 .hvbuck_enable_mask = PV88080_HVBUCK_EN, 162 .hvbuck_vsel_mask = PV88080_VHVBUCK_MASK, 163 }; 164 165 static const struct pv88080_compatible_regmap pv88080_ba_regs = { 166 /* BUCK1 */ 167 .buck_regmap[0] = { 168 .buck_enable_reg = PV88080BA_REG_BUCK1_CONF0, 169 .buck_vsel_reg = PV88080BA_REG_BUCK1_CONF0, 170 .buck_mode_reg = PV88080BA_REG_BUCK1_CONF1, 171 .buck_limit_reg = PV88080BA_REG_BUCK1_CONF1, 172 .buck_vdac_range_reg = PV88080BA_REG_BUCK1_CONF2, 173 .buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5, 174 .buck_enable_mask = PV88080_BUCK1_EN, 175 .buck_vsel_mask = PV88080_VBUCK1_MASK, 176 .buck_limit_mask = PV88080_BUCK1_ILIM_MASK, 177 }, 178 /* BUCK2 */ 179 .buck_regmap[1] = { 180 .buck_enable_reg = PV88080BA_REG_BUCK2_CONF0, 181 .buck_vsel_reg = PV88080BA_REG_BUCK2_CONF0, 182 .buck_mode_reg = PV88080BA_REG_BUCK2_CONF1, 183 .buck_limit_reg = PV88080BA_REG_BUCK2_CONF1, 184 .buck_vdac_range_reg = PV88080BA_REG_BUCK2_CONF2, 185 .buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5, 186 .buck_enable_mask = PV88080_BUCK2_EN, 187 .buck_vsel_mask = PV88080_VBUCK2_MASK, 188 .buck_limit_mask = PV88080_BUCK2_ILIM_MASK, 189 }, 190 /* BUCK3 */ 191 .buck_regmap[2] = { 192 .buck_enable_reg = PV88080BA_REG_BUCK3_CONF0, 193 .buck_vsel_reg = PV88080BA_REG_BUCK3_CONF0, 194 .buck_mode_reg = PV88080BA_REG_BUCK3_CONF1, 195 .buck_limit_reg = PV88080BA_REG_BUCK3_CONF1, 196 .buck_vdac_range_reg = PV88080BA_REG_BUCK3_CONF2, 197 .buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5, 198 .buck_enable_mask = PV88080_BUCK3_EN, 199 .buck_vsel_mask = PV88080_VBUCK3_MASK, 200 .buck_limit_mask = PV88080_BUCK3_ILIM_MASK, 201 }, 202 /* HVBUCK */ 203 .hvbuck_enable_reg = PV88080BA_REG_HVBUCK_CONF2, 204 .hvbuck_vsel_reg = PV88080BA_REG_HVBUCK_CONF1, 205 .hvbuck_enable_mask = PV88080_HVBUCK_EN, 206 .hvbuck_vsel_mask = PV88080_VHVBUCK_MASK, 207 }; 208 209 #ifdef CONFIG_OF 210 static const struct of_device_id pv88080_dt_ids[] = { 211 { .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA }, 212 { .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA }, 213 { .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA }, 214 {}, 215 }; 216 MODULE_DEVICE_TABLE(of, pv88080_dt_ids); 217 #endif 218 219 static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev) 220 { 221 struct pv88080_regulator *info = rdev_get_drvdata(rdev); 222 unsigned int data; 223 int ret, mode = 0; 224 225 ret = regmap_read(rdev->regmap, info->mode_reg, &data); 226 if (ret < 0) 227 return ret; 228 229 switch (data & PV88080_BUCK1_MODE_MASK) { 230 case PV88080_BUCK_MODE_SYNC: 231 mode = REGULATOR_MODE_FAST; 232 break; 233 case PV88080_BUCK_MODE_AUTO: 234 mode = REGULATOR_MODE_NORMAL; 235 break; 236 case PV88080_BUCK_MODE_SLEEP: 237 mode = REGULATOR_MODE_STANDBY; 238 break; 239 default: 240 return -EINVAL; 241 } 242 243 return mode; 244 } 245 246 static int pv88080_buck_set_mode(struct regulator_dev *rdev, 247 unsigned int mode) 248 { 249 struct pv88080_regulator *info = rdev_get_drvdata(rdev); 250 int val = 0; 251 252 switch (mode) { 253 case REGULATOR_MODE_FAST: 254 val = PV88080_BUCK_MODE_SYNC; 255 break; 256 case REGULATOR_MODE_NORMAL: 257 val = PV88080_BUCK_MODE_AUTO; 258 break; 259 case REGULATOR_MODE_STANDBY: 260 val = PV88080_BUCK_MODE_SLEEP; 261 break; 262 default: 263 return -EINVAL; 264 } 265 266 return regmap_update_bits(rdev->regmap, info->mode_reg, 267 PV88080_BUCK1_MODE_MASK, val); 268 } 269 270 static const struct regulator_ops pv88080_buck_ops = { 271 .get_mode = pv88080_buck_get_mode, 272 .set_mode = pv88080_buck_set_mode, 273 .enable = regulator_enable_regmap, 274 .disable = regulator_disable_regmap, 275 .is_enabled = regulator_is_enabled_regmap, 276 .set_voltage_sel = regulator_set_voltage_sel_regmap, 277 .get_voltage_sel = regulator_get_voltage_sel_regmap, 278 .list_voltage = regulator_list_voltage_linear, 279 .set_current_limit = regulator_set_current_limit_regmap, 280 .get_current_limit = regulator_get_current_limit_regmap, 281 }; 282 283 static const struct regulator_ops pv88080_hvbuck_ops = { 284 .enable = regulator_enable_regmap, 285 .disable = regulator_disable_regmap, 286 .is_enabled = regulator_is_enabled_regmap, 287 .set_voltage_sel = regulator_set_voltage_sel_regmap, 288 .get_voltage_sel = regulator_get_voltage_sel_regmap, 289 .list_voltage = regulator_list_voltage_linear, 290 }; 291 292 #define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \ 293 {\ 294 .desc = {\ 295 .id = chip##_ID_##regl_name,\ 296 .name = __stringify(chip##_##regl_name),\ 297 .of_match = of_match_ptr(#regl_name),\ 298 .regulators_node = of_match_ptr("regulators"),\ 299 .type = REGULATOR_VOLTAGE,\ 300 .owner = THIS_MODULE,\ 301 .ops = &pv88080_buck_ops,\ 302 .min_uV = min, \ 303 .uV_step = step, \ 304 .n_voltages = ((max) - (min))/(step) + 1, \ 305 .curr_table = limits_array, \ 306 .n_current_limits = ARRAY_SIZE(limits_array), \ 307 },\ 308 } 309 310 #define PV88080_HVBUCK(chip, regl_name, min, step, max) \ 311 {\ 312 .desc = {\ 313 .id = chip##_ID_##regl_name,\ 314 .name = __stringify(chip##_##regl_name),\ 315 .of_match = of_match_ptr(#regl_name),\ 316 .regulators_node = of_match_ptr("regulators"),\ 317 .type = REGULATOR_VOLTAGE,\ 318 .owner = THIS_MODULE,\ 319 .ops = &pv88080_hvbuck_ops,\ 320 .min_uV = min, \ 321 .uV_step = step, \ 322 .n_voltages = ((max) - (min))/(step) + 1, \ 323 },\ 324 } 325 326 static struct pv88080_regulator pv88080_regulator_info[] = { 327 PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750, 328 pv88080_buck1_limits), 329 PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750, 330 pv88080_buck23_limits), 331 PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750, 332 pv88080_buck23_limits), 333 PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000), 334 }; 335 336 static irqreturn_t pv88080_irq_handler(int irq, void *data) 337 { 338 struct pv88080 *chip = data; 339 int i, reg_val, err, ret = IRQ_NONE; 340 341 err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, ®_val); 342 if (err < 0) 343 goto error_i2c; 344 345 if (reg_val & PV88080_E_VDD_FLT) { 346 for (i = 0; i < PV88080_MAX_REGULATORS; i++) { 347 if (chip->rdev[i] != NULL) { 348 regulator_notifier_call_chain(chip->rdev[i], 349 REGULATOR_EVENT_UNDER_VOLTAGE, 350 NULL); 351 } 352 } 353 354 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, 355 PV88080_E_VDD_FLT); 356 if (err < 0) 357 goto error_i2c; 358 359 ret = IRQ_HANDLED; 360 } 361 362 if (reg_val & PV88080_E_OVER_TEMP) { 363 for (i = 0; i < PV88080_MAX_REGULATORS; i++) { 364 if (chip->rdev[i] != NULL) { 365 regulator_notifier_call_chain(chip->rdev[i], 366 REGULATOR_EVENT_OVER_TEMP, 367 NULL); 368 } 369 } 370 371 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, 372 PV88080_E_OVER_TEMP); 373 if (err < 0) 374 goto error_i2c; 375 376 ret = IRQ_HANDLED; 377 } 378 379 return ret; 380 381 error_i2c: 382 dev_err(chip->dev, "I2C error : %d\n", err); 383 return IRQ_NONE; 384 } 385 386 /* 387 * I2C driver interface functions 388 */ 389 static int pv88080_i2c_probe(struct i2c_client *i2c, 390 const struct i2c_device_id *id) 391 { 392 struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev); 393 struct pv88080 *chip; 394 const struct pv88080_compatible_regmap *regmap_config; 395 const struct of_device_id *match; 396 struct regulator_config config = { }; 397 int i, error, ret; 398 unsigned int conf2, conf5; 399 400 chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL); 401 if (!chip) 402 return -ENOMEM; 403 404 chip->dev = &i2c->dev; 405 chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config); 406 if (IS_ERR(chip->regmap)) { 407 error = PTR_ERR(chip->regmap); 408 dev_err(chip->dev, "Failed to allocate register map: %d\n", 409 error); 410 return error; 411 } 412 413 if (i2c->dev.of_node) { 414 match = of_match_node(pv88080_dt_ids, i2c->dev.of_node); 415 if (!match) { 416 dev_err(chip->dev, "Failed to get of_match_node\n"); 417 return -EINVAL; 418 } 419 chip->type = (unsigned long)match->data; 420 } else { 421 chip->type = id->driver_data; 422 } 423 424 i2c_set_clientdata(i2c, chip); 425 426 if (i2c->irq != 0) { 427 ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF); 428 if (ret < 0) { 429 dev_err(chip->dev, 430 "Failed to mask A reg: %d\n", ret); 431 return ret; 432 } 433 ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF); 434 if (ret < 0) { 435 dev_err(chip->dev, 436 "Failed to mask B reg: %d\n", ret); 437 return ret; 438 } 439 ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF); 440 if (ret < 0) { 441 dev_err(chip->dev, 442 "Failed to mask C reg: %d\n", ret); 443 return ret; 444 } 445 446 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, 447 pv88080_irq_handler, 448 IRQF_TRIGGER_LOW|IRQF_ONESHOT, 449 "pv88080", chip); 450 if (ret != 0) { 451 dev_err(chip->dev, "Failed to request IRQ: %d\n", 452 i2c->irq); 453 return ret; 454 } 455 456 ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A, 457 PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0); 458 if (ret < 0) { 459 dev_err(chip->dev, 460 "Failed to update mask reg: %d\n", ret); 461 return ret; 462 } 463 } else { 464 dev_warn(chip->dev, "No IRQ configured\n"); 465 } 466 467 switch (chip->type) { 468 case TYPE_PV88080_AA: 469 chip->regmap_config = &pv88080_aa_regs; 470 break; 471 case TYPE_PV88080_BA: 472 chip->regmap_config = &pv88080_ba_regs; 473 break; 474 } 475 476 regmap_config = chip->regmap_config; 477 config.dev = chip->dev; 478 config.regmap = chip->regmap; 479 480 /* Registeration for BUCK1, 2, 3 */ 481 for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) { 482 if (init_data) 483 config.init_data = &init_data[i]; 484 485 pv88080_regulator_info[i].desc.csel_reg 486 = regmap_config->buck_regmap[i].buck_limit_reg; 487 pv88080_regulator_info[i].desc.csel_mask 488 = regmap_config->buck_regmap[i].buck_limit_mask; 489 pv88080_regulator_info[i].mode_reg 490 = regmap_config->buck_regmap[i].buck_mode_reg; 491 pv88080_regulator_info[i].conf2 492 = regmap_config->buck_regmap[i].buck_vdac_range_reg; 493 pv88080_regulator_info[i].conf5 494 = regmap_config->buck_regmap[i].buck_vrange_gain_reg; 495 pv88080_regulator_info[i].desc.enable_reg 496 = regmap_config->buck_regmap[i].buck_enable_reg; 497 pv88080_regulator_info[i].desc.enable_mask 498 = regmap_config->buck_regmap[i].buck_enable_mask; 499 pv88080_regulator_info[i].desc.vsel_reg 500 = regmap_config->buck_regmap[i].buck_vsel_reg; 501 pv88080_regulator_info[i].desc.vsel_mask 502 = regmap_config->buck_regmap[i].buck_vsel_mask; 503 504 ret = regmap_read(chip->regmap, 505 pv88080_regulator_info[i].conf2, &conf2); 506 if (ret < 0) 507 return ret; 508 conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) & 509 PV88080_BUCK_VDAC_RANGE_MASK); 510 511 ret = regmap_read(chip->regmap, 512 pv88080_regulator_info[i].conf5, &conf5); 513 if (ret < 0) 514 return ret; 515 conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) & 516 PV88080_BUCK_VRANGE_GAIN_MASK); 517 518 pv88080_regulator_info[i].desc.min_uV = 519 pv88080_buck_vol[conf2].min_uV * (conf5+1); 520 pv88080_regulator_info[i].desc.uV_step = 521 pv88080_buck_vol[conf2].uV_step * (conf5+1); 522 pv88080_regulator_info[i].desc.n_voltages = 523 ((pv88080_buck_vol[conf2].max_uV * (conf5+1)) 524 - (pv88080_regulator_info[i].desc.min_uV)) 525 /(pv88080_regulator_info[i].desc.uV_step) + 1; 526 527 config.driver_data = (void *)&pv88080_regulator_info[i]; 528 chip->rdev[i] = devm_regulator_register(chip->dev, 529 &pv88080_regulator_info[i].desc, &config); 530 if (IS_ERR(chip->rdev[i])) { 531 dev_err(chip->dev, 532 "Failed to register PV88080 regulator\n"); 533 return PTR_ERR(chip->rdev[i]); 534 } 535 } 536 537 pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg 538 = regmap_config->hvbuck_enable_reg; 539 pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask 540 = regmap_config->hvbuck_enable_mask; 541 pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg 542 = regmap_config->hvbuck_vsel_reg; 543 pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask 544 = regmap_config->hvbuck_vsel_mask; 545 546 /* Registeration for HVBUCK */ 547 if (init_data) 548 config.init_data = &init_data[PV88080_ID_HVBUCK]; 549 550 config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK]; 551 chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev, 552 &pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config); 553 if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) { 554 dev_err(chip->dev, "Failed to register PV88080 regulator\n"); 555 return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]); 556 } 557 558 return 0; 559 } 560 561 static const struct i2c_device_id pv88080_i2c_id[] = { 562 { "pv88080", TYPE_PV88080_AA }, 563 { "pv88080-aa", TYPE_PV88080_AA }, 564 { "pv88080-ba", TYPE_PV88080_BA }, 565 {}, 566 }; 567 MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id); 568 569 static struct i2c_driver pv88080_regulator_driver = { 570 .driver = { 571 .name = "pv88080", 572 .of_match_table = of_match_ptr(pv88080_dt_ids), 573 }, 574 .probe = pv88080_i2c_probe, 575 .id_table = pv88080_i2c_id, 576 }; 577 578 module_i2c_driver(pv88080_regulator_driver); 579 580 MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>"); 581 MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080"); 582 MODULE_LICENSE("GPL"); 583