1/* 2 * s2mps11.c 3 * 4 * Copyright (c) 2012-2014 Samsung Electronics Co., Ltd 5 * http://www.samsung.com 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 */ 18 19#include <linux/bug.h> 20#include <linux/err.h> 21#include <linux/gpio.h> 22#include <linux/slab.h> 23#include <linux/module.h> 24#include <linux/of.h> 25#include <linux/regmap.h> 26#include <linux/platform_device.h> 27#include <linux/regulator/driver.h> 28#include <linux/regulator/machine.h> 29#include <linux/regulator/of_regulator.h> 30#include <linux/of_gpio.h> 31#include <linux/mfd/samsung/core.h> 32#include <linux/mfd/samsung/s2mps11.h> 33#include <linux/mfd/samsung/s2mps13.h> 34#include <linux/mfd/samsung/s2mps14.h> 35#include <linux/mfd/samsung/s2mpu02.h> 36 37/* The highest number of possible regulators for supported devices. */ 38#define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX 39struct s2mps11_info { 40 unsigned int rdev_num; 41 int ramp_delay2; 42 int ramp_delay34; 43 int ramp_delay5; 44 int ramp_delay16; 45 int ramp_delay7810; 46 int ramp_delay9; 47 48 enum sec_device_type dev_type; 49 50 /* 51 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether 52 * the suspend mode was enabled. 53 */ 54 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX); 55 56 /* Array of size rdev_num with GPIO-s for external sleep control */ 57 int *ext_control_gpio; 58}; 59 60static int get_ramp_delay(int ramp_delay) 61{ 62 unsigned char cnt = 0; 63 64 ramp_delay /= 6250; 65 66 while (true) { 67 ramp_delay = ramp_delay >> 1; 68 if (ramp_delay == 0) 69 break; 70 cnt++; 71 } 72 73 if (cnt > 3) 74 cnt = 3; 75 76 return cnt; 77} 78 79static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 80 unsigned int old_selector, 81 unsigned int new_selector) 82{ 83 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 84 unsigned int ramp_delay = 0; 85 int old_volt, new_volt; 86 87 switch (rdev_get_id(rdev)) { 88 case S2MPS11_BUCK2: 89 ramp_delay = s2mps11->ramp_delay2; 90 break; 91 case S2MPS11_BUCK3: 92 case S2MPS11_BUCK4: 93 ramp_delay = s2mps11->ramp_delay34; 94 break; 95 case S2MPS11_BUCK5: 96 ramp_delay = s2mps11->ramp_delay5; 97 break; 98 case S2MPS11_BUCK6: 99 case S2MPS11_BUCK1: 100 ramp_delay = s2mps11->ramp_delay16; 101 break; 102 case S2MPS11_BUCK7: 103 case S2MPS11_BUCK8: 104 case S2MPS11_BUCK10: 105 ramp_delay = s2mps11->ramp_delay7810; 106 break; 107 case S2MPS11_BUCK9: 108 ramp_delay = s2mps11->ramp_delay9; 109 } 110 111 if (ramp_delay == 0) 112 ramp_delay = rdev->desc->ramp_delay; 113 114 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 115 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 116 117 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 118} 119 120static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 121{ 122 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 123 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 124 unsigned int ramp_enable = 1, enable_shift = 0; 125 int ret; 126 127 switch (rdev_get_id(rdev)) { 128 case S2MPS11_BUCK1: 129 if (ramp_delay > s2mps11->ramp_delay16) 130 s2mps11->ramp_delay16 = ramp_delay; 131 else 132 ramp_delay = s2mps11->ramp_delay16; 133 134 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 135 break; 136 case S2MPS11_BUCK2: 137 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 138 if (!ramp_delay) { 139 ramp_enable = 0; 140 break; 141 } 142 143 s2mps11->ramp_delay2 = ramp_delay; 144 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 145 ramp_reg = S2MPS11_REG_RAMP; 146 break; 147 case S2MPS11_BUCK3: 148 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 149 if (!ramp_delay) { 150 ramp_enable = 0; 151 break; 152 } 153 154 if (ramp_delay > s2mps11->ramp_delay34) 155 s2mps11->ramp_delay34 = ramp_delay; 156 else 157 ramp_delay = s2mps11->ramp_delay34; 158 159 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 160 ramp_reg = S2MPS11_REG_RAMP; 161 break; 162 case S2MPS11_BUCK4: 163 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 164 if (!ramp_delay) { 165 ramp_enable = 0; 166 break; 167 } 168 169 if (ramp_delay > s2mps11->ramp_delay34) 170 s2mps11->ramp_delay34 = ramp_delay; 171 else 172 ramp_delay = s2mps11->ramp_delay34; 173 174 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 175 ramp_reg = S2MPS11_REG_RAMP; 176 break; 177 case S2MPS11_BUCK5: 178 s2mps11->ramp_delay5 = ramp_delay; 179 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 180 break; 181 case S2MPS11_BUCK6: 182 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 183 if (!ramp_delay) { 184 ramp_enable = 0; 185 break; 186 } 187 188 if (ramp_delay > s2mps11->ramp_delay16) 189 s2mps11->ramp_delay16 = ramp_delay; 190 else 191 ramp_delay = s2mps11->ramp_delay16; 192 193 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 194 break; 195 case S2MPS11_BUCK7: 196 case S2MPS11_BUCK8: 197 case S2MPS11_BUCK10: 198 if (ramp_delay > s2mps11->ramp_delay7810) 199 s2mps11->ramp_delay7810 = ramp_delay; 200 else 201 ramp_delay = s2mps11->ramp_delay7810; 202 203 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 204 break; 205 case S2MPS11_BUCK9: 206 s2mps11->ramp_delay9 = ramp_delay; 207 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 208 break; 209 default: 210 return 0; 211 } 212 213 if (!ramp_enable) 214 goto ramp_disable; 215 216 /* Ramp delay can be enabled/disabled only for buck[2346] */ 217 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 218 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 219 rdev_get_id(rdev) == S2MPS11_BUCK6) { 220 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 221 1 << enable_shift, 1 << enable_shift); 222 if (ret) { 223 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 224 return ret; 225 } 226 } 227 228 ramp_val = get_ramp_delay(ramp_delay); 229 230 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 231 ramp_val << ramp_shift); 232 233ramp_disable: 234 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 235 1 << enable_shift, 0); 236} 237 238static struct regulator_ops s2mps11_ldo_ops = { 239 .list_voltage = regulator_list_voltage_linear, 240 .map_voltage = regulator_map_voltage_linear, 241 .is_enabled = regulator_is_enabled_regmap, 242 .enable = regulator_enable_regmap, 243 .disable = regulator_disable_regmap, 244 .get_voltage_sel = regulator_get_voltage_sel_regmap, 245 .set_voltage_sel = regulator_set_voltage_sel_regmap, 246 .set_voltage_time_sel = regulator_set_voltage_time_sel, 247}; 248 249static struct regulator_ops s2mps11_buck_ops = { 250 .list_voltage = regulator_list_voltage_linear, 251 .map_voltage = regulator_map_voltage_linear, 252 .is_enabled = regulator_is_enabled_regmap, 253 .enable = regulator_enable_regmap, 254 .disable = regulator_disable_regmap, 255 .get_voltage_sel = regulator_get_voltage_sel_regmap, 256 .set_voltage_sel = regulator_set_voltage_sel_regmap, 257 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel, 258 .set_ramp_delay = s2mps11_set_ramp_delay, 259}; 260 261#define regulator_desc_s2mps11_ldo(num, step) { \ 262 .name = "LDO"#num, \ 263 .id = S2MPS11_LDO##num, \ 264 .ops = &s2mps11_ldo_ops, \ 265 .type = REGULATOR_VOLTAGE, \ 266 .owner = THIS_MODULE, \ 267 .min_uV = MIN_800_MV, \ 268 .uV_step = step, \ 269 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 270 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 271 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 272 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 273 .enable_mask = S2MPS11_ENABLE_MASK \ 274} 275 276#define regulator_desc_s2mps11_buck1_4(num) { \ 277 .name = "BUCK"#num, \ 278 .id = S2MPS11_BUCK##num, \ 279 .ops = &s2mps11_buck_ops, \ 280 .type = REGULATOR_VOLTAGE, \ 281 .owner = THIS_MODULE, \ 282 .min_uV = MIN_600_MV, \ 283 .uV_step = STEP_6_25_MV, \ 284 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 285 .ramp_delay = S2MPS11_RAMP_DELAY, \ 286 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 287 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 288 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 289 .enable_mask = S2MPS11_ENABLE_MASK \ 290} 291 292#define regulator_desc_s2mps11_buck5 { \ 293 .name = "BUCK5", \ 294 .id = S2MPS11_BUCK5, \ 295 .ops = &s2mps11_buck_ops, \ 296 .type = REGULATOR_VOLTAGE, \ 297 .owner = THIS_MODULE, \ 298 .min_uV = MIN_600_MV, \ 299 .uV_step = STEP_6_25_MV, \ 300 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 301 .ramp_delay = S2MPS11_RAMP_DELAY, \ 302 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 303 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 304 .enable_reg = S2MPS11_REG_B5CTRL1, \ 305 .enable_mask = S2MPS11_ENABLE_MASK \ 306} 307 308#define regulator_desc_s2mps11_buck67810(num, min, step) { \ 309 .name = "BUCK"#num, \ 310 .id = S2MPS11_BUCK##num, \ 311 .ops = &s2mps11_buck_ops, \ 312 .type = REGULATOR_VOLTAGE, \ 313 .owner = THIS_MODULE, \ 314 .min_uV = min, \ 315 .uV_step = step, \ 316 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 317 .ramp_delay = S2MPS11_RAMP_DELAY, \ 318 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 319 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 320 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 321 .enable_mask = S2MPS11_ENABLE_MASK \ 322} 323 324#define regulator_desc_s2mps11_buck9 { \ 325 .name = "BUCK9", \ 326 .id = S2MPS11_BUCK9, \ 327 .ops = &s2mps11_buck_ops, \ 328 .type = REGULATOR_VOLTAGE, \ 329 .owner = THIS_MODULE, \ 330 .min_uV = MIN_3000_MV, \ 331 .uV_step = STEP_25_MV, \ 332 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \ 333 .ramp_delay = S2MPS11_RAMP_DELAY, \ 334 .vsel_reg = S2MPS11_REG_B9CTRL2, \ 335 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \ 336 .enable_reg = S2MPS11_REG_B9CTRL1, \ 337 .enable_mask = S2MPS11_ENABLE_MASK \ 338} 339 340static const struct regulator_desc s2mps11_regulators[] = { 341 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 342 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 343 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 345 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 346 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 347 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 348 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 352 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 353 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 354 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 363 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 364 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 365 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 366 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 367 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 368 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 369 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 370 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 371 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 372 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 373 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 374 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 375 regulator_desc_s2mps11_ldo(35, STEP_50_MV), 376 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 377 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 378 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 379 regulator_desc_s2mps11_buck1_4(1), 380 regulator_desc_s2mps11_buck1_4(2), 381 regulator_desc_s2mps11_buck1_4(3), 382 regulator_desc_s2mps11_buck1_4(4), 383 regulator_desc_s2mps11_buck5, 384 regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), 385 regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV), 386 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV), 387 regulator_desc_s2mps11_buck9, 388 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), 389}; 390 391static struct regulator_ops s2mps14_reg_ops; 392 393#define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 394 .name = "LDO"#num, \ 395 .id = S2MPS13_LDO##num, \ 396 .ops = &s2mps14_reg_ops, \ 397 .type = REGULATOR_VOLTAGE, \ 398 .owner = THIS_MODULE, \ 399 .min_uV = min, \ 400 .uV_step = step, \ 401 .linear_min_sel = min_sel, \ 402 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 403 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 404 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 405 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 406 .enable_mask = S2MPS14_ENABLE_MASK \ 407} 408 409#define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 410 .name = "BUCK"#num, \ 411 .id = S2MPS13_BUCK##num, \ 412 .ops = &s2mps14_reg_ops, \ 413 .type = REGULATOR_VOLTAGE, \ 414 .owner = THIS_MODULE, \ 415 .min_uV = min, \ 416 .uV_step = step, \ 417 .linear_min_sel = min_sel, \ 418 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 419 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 420 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 421 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 422 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 423 .enable_mask = S2MPS14_ENABLE_MASK \ 424} 425 426#define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 427 .name = "BUCK"#num, \ 428 .id = S2MPS13_BUCK##num, \ 429 .ops = &s2mps14_reg_ops, \ 430 .type = REGULATOR_VOLTAGE, \ 431 .owner = THIS_MODULE, \ 432 .min_uV = min, \ 433 .uV_step = step, \ 434 .linear_min_sel = min_sel, \ 435 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 436 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 437 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 438 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 439 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 440 .enable_mask = S2MPS14_ENABLE_MASK \ 441} 442 443#define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 444 .name = "BUCK"#num, \ 445 .id = S2MPS13_BUCK##num, \ 446 .ops = &s2mps14_reg_ops, \ 447 .type = REGULATOR_VOLTAGE, \ 448 .owner = THIS_MODULE, \ 449 .min_uV = min, \ 450 .uV_step = step, \ 451 .linear_min_sel = min_sel, \ 452 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 453 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 454 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 455 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 456 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 457 .enable_mask = S2MPS14_ENABLE_MASK \ 458} 459 460static const struct regulator_desc s2mps13_regulators[] = { 461 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 462 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 463 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 464 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 465 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 466 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 467 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 468 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 469 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 470 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 471 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 472 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 473 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 474 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 475 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 476 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 477 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 478 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 479 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 480 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 482 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 483 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 484 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 485 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 486 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 487 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 488 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 489 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 490 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 491 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 492 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 493 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 494 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 495 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 496 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 497 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 498 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 499 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 500 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 501 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 502 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 503 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 504 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 505 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 506 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 507 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 508 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 509 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 510 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 511}; 512 513static int s2mps14_regulator_enable(struct regulator_dev *rdev) 514{ 515 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 516 unsigned int val; 517 518 switch (s2mps11->dev_type) { 519 case S2MPS13X: 520 case S2MPS14X: 521 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 522 val = S2MPS14_ENABLE_SUSPEND; 523 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 524 val = S2MPS14_ENABLE_EXT_CONTROL; 525 else 526 val = rdev->desc->enable_mask; 527 break; 528 case S2MPU02: 529 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 530 val = S2MPU02_ENABLE_SUSPEND; 531 else 532 val = rdev->desc->enable_mask; 533 break; 534 default: 535 return -EINVAL; 536 } 537 538 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 539 rdev->desc->enable_mask, val); 540} 541 542static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 543{ 544 int ret; 545 unsigned int val, state; 546 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 547 int rdev_id = rdev_get_id(rdev); 548 549 /* Below LDO should be always on or does not support suspend mode. */ 550 switch (s2mps11->dev_type) { 551 case S2MPS13X: 552 case S2MPS14X: 553 switch (rdev_id) { 554 case S2MPS14_LDO3: 555 return 0; 556 default: 557 state = S2MPS14_ENABLE_SUSPEND; 558 break; 559 } 560 break; 561 case S2MPU02: 562 switch (rdev_id) { 563 case S2MPU02_LDO13: 564 case S2MPU02_LDO14: 565 case S2MPU02_LDO15: 566 case S2MPU02_LDO17: 567 case S2MPU02_BUCK7: 568 state = S2MPU02_DISABLE_SUSPEND; 569 break; 570 default: 571 state = S2MPU02_ENABLE_SUSPEND; 572 break; 573 } 574 break; 575 default: 576 return -EINVAL; 577 } 578 579 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 580 if (ret < 0) 581 return ret; 582 583 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 584 /* 585 * Don't enable suspend mode if regulator is already disabled because 586 * this would effectively for a short time turn on the regulator after 587 * resuming. 588 * However we still want to toggle the suspend_state bit for regulator 589 * in case if it got enabled before suspending the system. 590 */ 591 if (!(val & rdev->desc->enable_mask)) 592 return 0; 593 594 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 595 rdev->desc->enable_mask, state); 596} 597 598static struct regulator_ops s2mps14_reg_ops = { 599 .list_voltage = regulator_list_voltage_linear, 600 .map_voltage = regulator_map_voltage_linear, 601 .is_enabled = regulator_is_enabled_regmap, 602 .enable = s2mps14_regulator_enable, 603 .disable = regulator_disable_regmap, 604 .get_voltage_sel = regulator_get_voltage_sel_regmap, 605 .set_voltage_sel = regulator_set_voltage_sel_regmap, 606 .set_voltage_time_sel = regulator_set_voltage_time_sel, 607 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 608}; 609 610#define regulator_desc_s2mps14_ldo(num, min, step) { \ 611 .name = "LDO"#num, \ 612 .id = S2MPS14_LDO##num, \ 613 .ops = &s2mps14_reg_ops, \ 614 .type = REGULATOR_VOLTAGE, \ 615 .owner = THIS_MODULE, \ 616 .min_uV = min, \ 617 .uV_step = step, \ 618 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 619 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 620 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 621 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 622 .enable_mask = S2MPS14_ENABLE_MASK \ 623} 624 625#define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 626 .name = "BUCK"#num, \ 627 .id = S2MPS14_BUCK##num, \ 628 .ops = &s2mps14_reg_ops, \ 629 .type = REGULATOR_VOLTAGE, \ 630 .owner = THIS_MODULE, \ 631 .min_uV = min, \ 632 .uV_step = step, \ 633 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 634 .linear_min_sel = min_sel, \ 635 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 636 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 637 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 638 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 639 .enable_mask = S2MPS14_ENABLE_MASK \ 640} 641 642static const struct regulator_desc s2mps14_regulators[] = { 643 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 644 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 645 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 648 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 649 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 652 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 653 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 654 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 655 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 656 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 657 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 658 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 659 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 660 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 661 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 662 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 663 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 664 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 665 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 666 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 667 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 668 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 669 S2MPS14_BUCK1235_START_SEL), 670 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 671 S2MPS14_BUCK1235_START_SEL), 672 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 673 S2MPS14_BUCK1235_START_SEL), 674 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 675 S2MPS14_BUCK4_START_SEL), 676 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 677 S2MPS14_BUCK1235_START_SEL), 678}; 679 680static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 681 struct regulator_dev *rdev) 682{ 683 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 684 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 685} 686 687static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 688 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 689{ 690 int *gpio = s2mps11->ext_control_gpio; 691 unsigned int i; 692 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 693 S2MPS14_LDO12 }; 694 695 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 696 unsigned int reg = valid_regulators[i]; 697 698 if (!rdata[reg].init_data || !rdata[reg].of_node) 699 continue; 700 701 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 702 "samsung,ext-control-gpios", 0); 703 if (gpio_is_valid(gpio[reg])) 704 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 705 gpio[reg], reg, rdata[reg].name); 706 } 707} 708 709static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 710 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 711{ 712 struct device_node *reg_np; 713 714 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 715 if (!reg_np) { 716 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 717 return -EINVAL; 718 } 719 720 of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num); 721 if (s2mps11->dev_type == S2MPS14X) 722 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 723 724 of_node_put(reg_np); 725 726 return 0; 727} 728 729static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 730{ 731 unsigned int ramp_val, ramp_shift, ramp_reg; 732 733 switch (rdev_get_id(rdev)) { 734 case S2MPU02_BUCK1: 735 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 736 break; 737 case S2MPU02_BUCK2: 738 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 739 break; 740 case S2MPU02_BUCK3: 741 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 742 break; 743 case S2MPU02_BUCK4: 744 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 745 break; 746 default: 747 return 0; 748 } 749 ramp_reg = S2MPU02_REG_RAMP1; 750 ramp_val = get_ramp_delay(ramp_delay); 751 752 return regmap_update_bits(rdev->regmap, ramp_reg, 753 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 754 ramp_val << ramp_shift); 755} 756 757static struct regulator_ops s2mpu02_ldo_ops = { 758 .list_voltage = regulator_list_voltage_linear, 759 .map_voltage = regulator_map_voltage_linear, 760 .is_enabled = regulator_is_enabled_regmap, 761 .enable = s2mps14_regulator_enable, 762 .disable = regulator_disable_regmap, 763 .get_voltage_sel = regulator_get_voltage_sel_regmap, 764 .set_voltage_sel = regulator_set_voltage_sel_regmap, 765 .set_voltage_time_sel = regulator_set_voltage_time_sel, 766 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 767}; 768 769static struct regulator_ops s2mpu02_buck_ops = { 770 .list_voltage = regulator_list_voltage_linear, 771 .map_voltage = regulator_map_voltage_linear, 772 .is_enabled = regulator_is_enabled_regmap, 773 .enable = s2mps14_regulator_enable, 774 .disable = regulator_disable_regmap, 775 .get_voltage_sel = regulator_get_voltage_sel_regmap, 776 .set_voltage_sel = regulator_set_voltage_sel_regmap, 777 .set_voltage_time_sel = regulator_set_voltage_time_sel, 778 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 779 .set_ramp_delay = s2mpu02_set_ramp_delay, 780}; 781 782#define regulator_desc_s2mpu02_ldo1(num) { \ 783 .name = "LDO"#num, \ 784 .id = S2MPU02_LDO##num, \ 785 .ops = &s2mpu02_ldo_ops, \ 786 .type = REGULATOR_VOLTAGE, \ 787 .owner = THIS_MODULE, \ 788 .min_uV = S2MPU02_LDO_MIN_900MV, \ 789 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 790 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 791 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 792 .vsel_reg = S2MPU02_REG_L1CTRL, \ 793 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 794 .enable_reg = S2MPU02_REG_L1CTRL, \ 795 .enable_mask = S2MPU02_ENABLE_MASK \ 796} 797#define regulator_desc_s2mpu02_ldo2(num) { \ 798 .name = "LDO"#num, \ 799 .id = S2MPU02_LDO##num, \ 800 .ops = &s2mpu02_ldo_ops, \ 801 .type = REGULATOR_VOLTAGE, \ 802 .owner = THIS_MODULE, \ 803 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 804 .uV_step = S2MPU02_LDO_STEP_25MV, \ 805 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 806 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 807 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 808 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 809 .enable_reg = S2MPU02_REG_L2CTRL1, \ 810 .enable_mask = S2MPU02_ENABLE_MASK \ 811} 812#define regulator_desc_s2mpu02_ldo3(num) { \ 813 .name = "LDO"#num, \ 814 .id = S2MPU02_LDO##num, \ 815 .ops = &s2mpu02_ldo_ops, \ 816 .type = REGULATOR_VOLTAGE, \ 817 .owner = THIS_MODULE, \ 818 .min_uV = S2MPU02_LDO_MIN_900MV, \ 819 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 820 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 821 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 822 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 823 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 824 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 825 .enable_mask = S2MPU02_ENABLE_MASK \ 826} 827#define regulator_desc_s2mpu02_ldo4(num) { \ 828 .name = "LDO"#num, \ 829 .id = S2MPU02_LDO##num, \ 830 .ops = &s2mpu02_ldo_ops, \ 831 .type = REGULATOR_VOLTAGE, \ 832 .owner = THIS_MODULE, \ 833 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 834 .uV_step = S2MPU02_LDO_STEP_25MV, \ 835 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 836 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 837 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 838 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 839 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 840 .enable_mask = S2MPU02_ENABLE_MASK \ 841} 842#define regulator_desc_s2mpu02_ldo5(num) { \ 843 .name = "LDO"#num, \ 844 .id = S2MPU02_LDO##num, \ 845 .ops = &s2mpu02_ldo_ops, \ 846 .type = REGULATOR_VOLTAGE, \ 847 .owner = THIS_MODULE, \ 848 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 849 .uV_step = S2MPU02_LDO_STEP_50MV, \ 850 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 851 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 852 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 853 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 854 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 855 .enable_mask = S2MPU02_ENABLE_MASK \ 856} 857 858#define regulator_desc_s2mpu02_buck1234(num) { \ 859 .name = "BUCK"#num, \ 860 .id = S2MPU02_BUCK##num, \ 861 .ops = &s2mpu02_buck_ops, \ 862 .type = REGULATOR_VOLTAGE, \ 863 .owner = THIS_MODULE, \ 864 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 865 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 866 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 867 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 868 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 869 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 870 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 871 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 872 .enable_mask = S2MPU02_ENABLE_MASK \ 873} 874#define regulator_desc_s2mpu02_buck5(num) { \ 875 .name = "BUCK"#num, \ 876 .id = S2MPU02_BUCK##num, \ 877 .ops = &s2mpu02_ldo_ops, \ 878 .type = REGULATOR_VOLTAGE, \ 879 .owner = THIS_MODULE, \ 880 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 881 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 882 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 883 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 884 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 885 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 886 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 887 .enable_reg = S2MPU02_REG_B5CTRL1, \ 888 .enable_mask = S2MPU02_ENABLE_MASK \ 889} 890#define regulator_desc_s2mpu02_buck6(num) { \ 891 .name = "BUCK"#num, \ 892 .id = S2MPU02_BUCK##num, \ 893 .ops = &s2mpu02_ldo_ops, \ 894 .type = REGULATOR_VOLTAGE, \ 895 .owner = THIS_MODULE, \ 896 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 897 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 898 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 899 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 900 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 901 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 902 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 903 .enable_reg = S2MPU02_REG_B6CTRL1, \ 904 .enable_mask = S2MPU02_ENABLE_MASK \ 905} 906#define regulator_desc_s2mpu02_buck7(num) { \ 907 .name = "BUCK"#num, \ 908 .id = S2MPU02_BUCK##num, \ 909 .ops = &s2mpu02_ldo_ops, \ 910 .type = REGULATOR_VOLTAGE, \ 911 .owner = THIS_MODULE, \ 912 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 913 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 914 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 915 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 916 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 917 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 918 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 919 .enable_reg = S2MPU02_REG_B7CTRL1, \ 920 .enable_mask = S2MPU02_ENABLE_MASK \ 921} 922 923static const struct regulator_desc s2mpu02_regulators[] = { 924 regulator_desc_s2mpu02_ldo1(1), 925 regulator_desc_s2mpu02_ldo2(2), 926 regulator_desc_s2mpu02_ldo4(3), 927 regulator_desc_s2mpu02_ldo5(4), 928 regulator_desc_s2mpu02_ldo4(5), 929 regulator_desc_s2mpu02_ldo3(6), 930 regulator_desc_s2mpu02_ldo3(7), 931 regulator_desc_s2mpu02_ldo4(8), 932 regulator_desc_s2mpu02_ldo5(9), 933 regulator_desc_s2mpu02_ldo3(10), 934 regulator_desc_s2mpu02_ldo4(11), 935 regulator_desc_s2mpu02_ldo5(12), 936 regulator_desc_s2mpu02_ldo5(13), 937 regulator_desc_s2mpu02_ldo5(14), 938 regulator_desc_s2mpu02_ldo5(15), 939 regulator_desc_s2mpu02_ldo5(16), 940 regulator_desc_s2mpu02_ldo4(17), 941 regulator_desc_s2mpu02_ldo5(18), 942 regulator_desc_s2mpu02_ldo3(19), 943 regulator_desc_s2mpu02_ldo4(20), 944 regulator_desc_s2mpu02_ldo5(21), 945 regulator_desc_s2mpu02_ldo5(22), 946 regulator_desc_s2mpu02_ldo5(23), 947 regulator_desc_s2mpu02_ldo4(24), 948 regulator_desc_s2mpu02_ldo5(25), 949 regulator_desc_s2mpu02_ldo4(26), 950 regulator_desc_s2mpu02_ldo5(27), 951 regulator_desc_s2mpu02_ldo5(28), 952 regulator_desc_s2mpu02_buck1234(1), 953 regulator_desc_s2mpu02_buck1234(2), 954 regulator_desc_s2mpu02_buck1234(3), 955 regulator_desc_s2mpu02_buck1234(4), 956 regulator_desc_s2mpu02_buck5(5), 957 regulator_desc_s2mpu02_buck6(6), 958 regulator_desc_s2mpu02_buck7(7), 959}; 960 961static int s2mps11_pmic_probe(struct platform_device *pdev) 962{ 963 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 964 struct sec_platform_data *pdata = NULL; 965 struct of_regulator_match *rdata = NULL; 966 struct regulator_config config = { }; 967 struct s2mps11_info *s2mps11; 968 int i, ret = 0; 969 const struct regulator_desc *regulators; 970 971 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 972 GFP_KERNEL); 973 if (!s2mps11) 974 return -ENOMEM; 975 976 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 977 switch (s2mps11->dev_type) { 978 case S2MPS11X: 979 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); 980 regulators = s2mps11_regulators; 981 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 982 break; 983 case S2MPS13X: 984 s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); 985 regulators = s2mps13_regulators; 986 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 987 break; 988 case S2MPS14X: 989 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); 990 regulators = s2mps14_regulators; 991 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 992 break; 993 case S2MPU02: 994 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators); 995 regulators = s2mpu02_regulators; 996 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 997 break; 998 default: 999 dev_err(&pdev->dev, "Invalid device type: %u\n", 1000 s2mps11->dev_type); 1001 return -EINVAL; 1002 } 1003 1004 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, 1005 sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num, 1006 GFP_KERNEL); 1007 if (!s2mps11->ext_control_gpio) 1008 return -ENOMEM; 1009 /* 1010 * 0 is a valid GPIO so initialize all GPIO-s to negative value 1011 * to indicate that external control won't be used for this regulator. 1012 */ 1013 for (i = 0; i < s2mps11->rdev_num; i++) 1014 s2mps11->ext_control_gpio[i] = -EINVAL; 1015 1016 if (!iodev->dev->of_node) { 1017 if (iodev->pdata) { 1018 pdata = iodev->pdata; 1019 goto common_reg; 1020 } else { 1021 dev_err(pdev->dev.parent, 1022 "Platform data or DT node not supplied\n"); 1023 return -ENODEV; 1024 } 1025 } 1026 1027 rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL); 1028 if (!rdata) 1029 return -ENOMEM; 1030 1031 for (i = 0; i < s2mps11->rdev_num; i++) 1032 rdata[i].name = regulators[i].name; 1033 1034 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11); 1035 if (ret) 1036 goto out; 1037 1038common_reg: 1039 platform_set_drvdata(pdev, s2mps11); 1040 1041 config.dev = &pdev->dev; 1042 config.regmap = iodev->regmap_pmic; 1043 config.driver_data = s2mps11; 1044 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1045 config.ena_gpio_initialized = true; 1046 for (i = 0; i < s2mps11->rdev_num; i++) { 1047 struct regulator_dev *regulator; 1048 1049 if (pdata) { 1050 config.init_data = pdata->regulators[i].initdata; 1051 config.of_node = pdata->regulators[i].reg_node; 1052 } else { 1053 config.init_data = rdata[i].init_data; 1054 config.of_node = rdata[i].of_node; 1055 } 1056 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1057 1058 regulator = devm_regulator_register(&pdev->dev, 1059 ®ulators[i], &config); 1060 if (IS_ERR(regulator)) { 1061 ret = PTR_ERR(regulator); 1062 dev_err(&pdev->dev, "regulator init failed for %d\n", 1063 i); 1064 goto out; 1065 } 1066 1067 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1068 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1069 regulator); 1070 if (ret < 0) { 1071 dev_err(&pdev->dev, 1072 "failed to enable GPIO control over %s: %d\n", 1073 regulator->desc->name, ret); 1074 goto out; 1075 } 1076 } 1077 } 1078 1079out: 1080 kfree(rdata); 1081 1082 return ret; 1083} 1084 1085static const struct platform_device_id s2mps11_pmic_id[] = { 1086 { "s2mps11-pmic", S2MPS11X}, 1087 { "s2mps13-pmic", S2MPS13X}, 1088 { "s2mps14-pmic", S2MPS14X}, 1089 { "s2mpu02-pmic", S2MPU02}, 1090 { }, 1091}; 1092MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1093 1094static struct platform_driver s2mps11_pmic_driver = { 1095 .driver = { 1096 .name = "s2mps11-pmic", 1097 }, 1098 .probe = s2mps11_pmic_probe, 1099 .id_table = s2mps11_pmic_id, 1100}; 1101 1102static int __init s2mps11_pmic_init(void) 1103{ 1104 return platform_driver_register(&s2mps11_pmic_driver); 1105} 1106subsys_initcall(s2mps11_pmic_init); 1107 1108static void __exit s2mps11_pmic_exit(void) 1109{ 1110 platform_driver_unregister(&s2mps11_pmic_driver); 1111} 1112module_exit(s2mps11_pmic_exit); 1113 1114/* Module information */ 1115MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1116MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver"); 1117MODULE_LICENSE("GPL"); 1118