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/s2mps15.h> 36 #include <linux/mfd/samsung/s2mpu02.h> 37 38 /* The highest number of possible regulators for supported devices. */ 39 #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX 40 struct s2mps11_info { 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 /* 57 * Array (size: number of regulators) with GPIO-s for external 58 * sleep control. 59 */ 60 int *ext_control_gpio; 61 }; 62 63 static int get_ramp_delay(int ramp_delay) 64 { 65 unsigned char cnt = 0; 66 67 ramp_delay /= 6250; 68 69 while (true) { 70 ramp_delay = ramp_delay >> 1; 71 if (ramp_delay == 0) 72 break; 73 cnt++; 74 } 75 76 if (cnt > 3) 77 cnt = 3; 78 79 return cnt; 80 } 81 82 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 83 unsigned int old_selector, 84 unsigned int new_selector) 85 { 86 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 87 unsigned int ramp_delay = 0; 88 int old_volt, new_volt; 89 90 switch (rdev_get_id(rdev)) { 91 case S2MPS11_BUCK2: 92 ramp_delay = s2mps11->ramp_delay2; 93 break; 94 case S2MPS11_BUCK3: 95 case S2MPS11_BUCK4: 96 ramp_delay = s2mps11->ramp_delay34; 97 break; 98 case S2MPS11_BUCK5: 99 ramp_delay = s2mps11->ramp_delay5; 100 break; 101 case S2MPS11_BUCK6: 102 case S2MPS11_BUCK1: 103 ramp_delay = s2mps11->ramp_delay16; 104 break; 105 case S2MPS11_BUCK7: 106 case S2MPS11_BUCK8: 107 case S2MPS11_BUCK10: 108 ramp_delay = s2mps11->ramp_delay7810; 109 break; 110 case S2MPS11_BUCK9: 111 ramp_delay = s2mps11->ramp_delay9; 112 } 113 114 if (ramp_delay == 0) 115 ramp_delay = rdev->desc->ramp_delay; 116 117 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 118 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 119 120 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 121 } 122 123 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 124 { 125 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 126 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 127 unsigned int ramp_enable = 1, enable_shift = 0; 128 int ret; 129 130 switch (rdev_get_id(rdev)) { 131 case S2MPS11_BUCK1: 132 if (ramp_delay > s2mps11->ramp_delay16) 133 s2mps11->ramp_delay16 = ramp_delay; 134 else 135 ramp_delay = s2mps11->ramp_delay16; 136 137 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 138 break; 139 case S2MPS11_BUCK2: 140 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 141 if (!ramp_delay) { 142 ramp_enable = 0; 143 break; 144 } 145 146 s2mps11->ramp_delay2 = ramp_delay; 147 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 148 ramp_reg = S2MPS11_REG_RAMP; 149 break; 150 case S2MPS11_BUCK3: 151 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 152 if (!ramp_delay) { 153 ramp_enable = 0; 154 break; 155 } 156 157 if (ramp_delay > s2mps11->ramp_delay34) 158 s2mps11->ramp_delay34 = ramp_delay; 159 else 160 ramp_delay = s2mps11->ramp_delay34; 161 162 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 163 ramp_reg = S2MPS11_REG_RAMP; 164 break; 165 case S2MPS11_BUCK4: 166 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 167 if (!ramp_delay) { 168 ramp_enable = 0; 169 break; 170 } 171 172 if (ramp_delay > s2mps11->ramp_delay34) 173 s2mps11->ramp_delay34 = ramp_delay; 174 else 175 ramp_delay = s2mps11->ramp_delay34; 176 177 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 178 ramp_reg = S2MPS11_REG_RAMP; 179 break; 180 case S2MPS11_BUCK5: 181 s2mps11->ramp_delay5 = ramp_delay; 182 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 183 break; 184 case S2MPS11_BUCK6: 185 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 186 if (!ramp_delay) { 187 ramp_enable = 0; 188 break; 189 } 190 191 if (ramp_delay > s2mps11->ramp_delay16) 192 s2mps11->ramp_delay16 = ramp_delay; 193 else 194 ramp_delay = s2mps11->ramp_delay16; 195 196 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 197 break; 198 case S2MPS11_BUCK7: 199 case S2MPS11_BUCK8: 200 case S2MPS11_BUCK10: 201 if (ramp_delay > s2mps11->ramp_delay7810) 202 s2mps11->ramp_delay7810 = ramp_delay; 203 else 204 ramp_delay = s2mps11->ramp_delay7810; 205 206 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 207 break; 208 case S2MPS11_BUCK9: 209 s2mps11->ramp_delay9 = ramp_delay; 210 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 211 break; 212 default: 213 return 0; 214 } 215 216 if (!ramp_enable) 217 goto ramp_disable; 218 219 /* Ramp delay can be enabled/disabled only for buck[2346] */ 220 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 221 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 222 rdev_get_id(rdev) == S2MPS11_BUCK6) { 223 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 224 1 << enable_shift, 1 << enable_shift); 225 if (ret) { 226 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 227 return ret; 228 } 229 } 230 231 ramp_val = get_ramp_delay(ramp_delay); 232 233 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 234 ramp_val << ramp_shift); 235 236 ramp_disable: 237 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 238 1 << enable_shift, 0); 239 } 240 241 static struct regulator_ops s2mps11_ldo_ops = { 242 .list_voltage = regulator_list_voltage_linear, 243 .map_voltage = regulator_map_voltage_linear, 244 .is_enabled = regulator_is_enabled_regmap, 245 .enable = regulator_enable_regmap, 246 .disable = regulator_disable_regmap, 247 .get_voltage_sel = regulator_get_voltage_sel_regmap, 248 .set_voltage_sel = regulator_set_voltage_sel_regmap, 249 .set_voltage_time_sel = regulator_set_voltage_time_sel, 250 }; 251 252 static struct regulator_ops s2mps11_buck_ops = { 253 .list_voltage = regulator_list_voltage_linear, 254 .map_voltage = regulator_map_voltage_linear, 255 .is_enabled = regulator_is_enabled_regmap, 256 .enable = regulator_enable_regmap, 257 .disable = regulator_disable_regmap, 258 .get_voltage_sel = regulator_get_voltage_sel_regmap, 259 .set_voltage_sel = regulator_set_voltage_sel_regmap, 260 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel, 261 .set_ramp_delay = s2mps11_set_ramp_delay, 262 }; 263 264 #define regulator_desc_s2mps11_ldo(num, step) { \ 265 .name = "LDO"#num, \ 266 .id = S2MPS11_LDO##num, \ 267 .ops = &s2mps11_ldo_ops, \ 268 .type = REGULATOR_VOLTAGE, \ 269 .owner = THIS_MODULE, \ 270 .ramp_delay = RAMP_DELAY_12_MVUS, \ 271 .min_uV = MIN_800_MV, \ 272 .uV_step = step, \ 273 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 274 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 275 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 276 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 277 .enable_mask = S2MPS11_ENABLE_MASK \ 278 } 279 280 #define regulator_desc_s2mps11_buck1_4(num) { \ 281 .name = "BUCK"#num, \ 282 .id = S2MPS11_BUCK##num, \ 283 .ops = &s2mps11_buck_ops, \ 284 .type = REGULATOR_VOLTAGE, \ 285 .owner = THIS_MODULE, \ 286 .min_uV = MIN_600_MV, \ 287 .uV_step = STEP_6_25_MV, \ 288 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 289 .ramp_delay = S2MPS11_RAMP_DELAY, \ 290 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 291 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 292 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 293 .enable_mask = S2MPS11_ENABLE_MASK \ 294 } 295 296 #define regulator_desc_s2mps11_buck5 { \ 297 .name = "BUCK5", \ 298 .id = S2MPS11_BUCK5, \ 299 .ops = &s2mps11_buck_ops, \ 300 .type = REGULATOR_VOLTAGE, \ 301 .owner = THIS_MODULE, \ 302 .min_uV = MIN_600_MV, \ 303 .uV_step = STEP_6_25_MV, \ 304 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 305 .ramp_delay = S2MPS11_RAMP_DELAY, \ 306 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 307 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 308 .enable_reg = S2MPS11_REG_B5CTRL1, \ 309 .enable_mask = S2MPS11_ENABLE_MASK \ 310 } 311 312 #define regulator_desc_s2mps11_buck67810(num, min, step) { \ 313 .name = "BUCK"#num, \ 314 .id = S2MPS11_BUCK##num, \ 315 .ops = &s2mps11_buck_ops, \ 316 .type = REGULATOR_VOLTAGE, \ 317 .owner = THIS_MODULE, \ 318 .min_uV = min, \ 319 .uV_step = step, \ 320 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 321 .ramp_delay = S2MPS11_RAMP_DELAY, \ 322 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 323 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 324 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 325 .enable_mask = S2MPS11_ENABLE_MASK \ 326 } 327 328 #define regulator_desc_s2mps11_buck9 { \ 329 .name = "BUCK9", \ 330 .id = S2MPS11_BUCK9, \ 331 .ops = &s2mps11_buck_ops, \ 332 .type = REGULATOR_VOLTAGE, \ 333 .owner = THIS_MODULE, \ 334 .min_uV = MIN_3000_MV, \ 335 .uV_step = STEP_25_MV, \ 336 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \ 337 .ramp_delay = S2MPS11_RAMP_DELAY, \ 338 .vsel_reg = S2MPS11_REG_B9CTRL2, \ 339 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \ 340 .enable_reg = S2MPS11_REG_B9CTRL1, \ 341 .enable_mask = S2MPS11_ENABLE_MASK \ 342 } 343 344 static const struct regulator_desc s2mps11_regulators[] = { 345 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 346 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 347 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 348 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 351 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 352 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 353 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 354 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 356 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 363 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 364 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 365 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 366 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 367 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 368 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 369 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 370 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 371 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 372 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 373 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 374 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 375 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 376 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 377 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 378 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 379 regulator_desc_s2mps11_ldo(35, STEP_50_MV), 380 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 381 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 382 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 383 regulator_desc_s2mps11_buck1_4(1), 384 regulator_desc_s2mps11_buck1_4(2), 385 regulator_desc_s2mps11_buck1_4(3), 386 regulator_desc_s2mps11_buck1_4(4), 387 regulator_desc_s2mps11_buck5, 388 regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), 389 regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV), 390 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV), 391 regulator_desc_s2mps11_buck9, 392 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), 393 }; 394 395 static struct regulator_ops s2mps14_reg_ops; 396 397 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 398 .name = "LDO"#num, \ 399 .id = S2MPS13_LDO##num, \ 400 .ops = &s2mps14_reg_ops, \ 401 .type = REGULATOR_VOLTAGE, \ 402 .owner = THIS_MODULE, \ 403 .min_uV = min, \ 404 .uV_step = step, \ 405 .linear_min_sel = min_sel, \ 406 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 407 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 408 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 409 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 410 .enable_mask = S2MPS14_ENABLE_MASK \ 411 } 412 413 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 414 .name = "BUCK"#num, \ 415 .id = S2MPS13_BUCK##num, \ 416 .ops = &s2mps14_reg_ops, \ 417 .type = REGULATOR_VOLTAGE, \ 418 .owner = THIS_MODULE, \ 419 .min_uV = min, \ 420 .uV_step = step, \ 421 .linear_min_sel = min_sel, \ 422 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 423 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 424 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 425 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 426 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 427 .enable_mask = S2MPS14_ENABLE_MASK \ 428 } 429 430 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 431 .name = "BUCK"#num, \ 432 .id = S2MPS13_BUCK##num, \ 433 .ops = &s2mps14_reg_ops, \ 434 .type = REGULATOR_VOLTAGE, \ 435 .owner = THIS_MODULE, \ 436 .min_uV = min, \ 437 .uV_step = step, \ 438 .linear_min_sel = min_sel, \ 439 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 440 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 441 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 442 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 443 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 444 .enable_mask = S2MPS14_ENABLE_MASK \ 445 } 446 447 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 448 .name = "BUCK"#num, \ 449 .id = S2MPS13_BUCK##num, \ 450 .ops = &s2mps14_reg_ops, \ 451 .type = REGULATOR_VOLTAGE, \ 452 .owner = THIS_MODULE, \ 453 .min_uV = min, \ 454 .uV_step = step, \ 455 .linear_min_sel = min_sel, \ 456 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 457 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 458 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 459 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 460 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 461 .enable_mask = S2MPS14_ENABLE_MASK \ 462 } 463 464 static const struct regulator_desc s2mps13_regulators[] = { 465 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 466 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 467 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 468 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 469 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 470 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 471 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 472 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 473 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 474 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 475 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 476 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 477 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 478 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 479 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 480 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 482 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 483 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 484 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 485 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 486 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 487 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 488 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 489 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 490 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 491 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 492 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 493 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 494 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 495 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 496 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 497 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 498 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 499 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 500 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 501 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 502 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 503 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 504 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 505 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 506 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 507 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 508 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 509 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 510 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 511 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 512 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 513 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 514 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 515 }; 516 517 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 518 { 519 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 520 unsigned int val; 521 522 switch (s2mps11->dev_type) { 523 case S2MPS13X: 524 case S2MPS14X: 525 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 526 val = S2MPS14_ENABLE_SUSPEND; 527 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 528 val = S2MPS14_ENABLE_EXT_CONTROL; 529 else 530 val = rdev->desc->enable_mask; 531 break; 532 case S2MPU02: 533 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 534 val = S2MPU02_ENABLE_SUSPEND; 535 else 536 val = rdev->desc->enable_mask; 537 break; 538 default: 539 return -EINVAL; 540 } 541 542 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 543 rdev->desc->enable_mask, val); 544 } 545 546 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 547 { 548 int ret; 549 unsigned int val, state; 550 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 551 int rdev_id = rdev_get_id(rdev); 552 553 /* Below LDO should be always on or does not support suspend mode. */ 554 switch (s2mps11->dev_type) { 555 case S2MPS13X: 556 case S2MPS14X: 557 switch (rdev_id) { 558 case S2MPS14_LDO3: 559 return 0; 560 default: 561 state = S2MPS14_ENABLE_SUSPEND; 562 break; 563 } 564 break; 565 case S2MPU02: 566 switch (rdev_id) { 567 case S2MPU02_LDO13: 568 case S2MPU02_LDO14: 569 case S2MPU02_LDO15: 570 case S2MPU02_LDO17: 571 case S2MPU02_BUCK7: 572 state = S2MPU02_DISABLE_SUSPEND; 573 break; 574 default: 575 state = S2MPU02_ENABLE_SUSPEND; 576 break; 577 } 578 break; 579 default: 580 return -EINVAL; 581 } 582 583 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 584 if (ret < 0) 585 return ret; 586 587 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 588 /* 589 * Don't enable suspend mode if regulator is already disabled because 590 * this would effectively for a short time turn on the regulator after 591 * resuming. 592 * However we still want to toggle the suspend_state bit for regulator 593 * in case if it got enabled before suspending the system. 594 */ 595 if (!(val & rdev->desc->enable_mask)) 596 return 0; 597 598 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 599 rdev->desc->enable_mask, state); 600 } 601 602 static struct regulator_ops s2mps14_reg_ops = { 603 .list_voltage = regulator_list_voltage_linear, 604 .map_voltage = regulator_map_voltage_linear, 605 .is_enabled = regulator_is_enabled_regmap, 606 .enable = s2mps14_regulator_enable, 607 .disable = regulator_disable_regmap, 608 .get_voltage_sel = regulator_get_voltage_sel_regmap, 609 .set_voltage_sel = regulator_set_voltage_sel_regmap, 610 .set_voltage_time_sel = regulator_set_voltage_time_sel, 611 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 612 }; 613 614 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 615 .name = "LDO"#num, \ 616 .id = S2MPS14_LDO##num, \ 617 .ops = &s2mps14_reg_ops, \ 618 .type = REGULATOR_VOLTAGE, \ 619 .owner = THIS_MODULE, \ 620 .min_uV = min, \ 621 .uV_step = step, \ 622 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 623 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 624 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 625 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 626 .enable_mask = S2MPS14_ENABLE_MASK \ 627 } 628 629 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 630 .name = "BUCK"#num, \ 631 .id = S2MPS14_BUCK##num, \ 632 .ops = &s2mps14_reg_ops, \ 633 .type = REGULATOR_VOLTAGE, \ 634 .owner = THIS_MODULE, \ 635 .min_uV = min, \ 636 .uV_step = step, \ 637 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 638 .linear_min_sel = min_sel, \ 639 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 640 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 641 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 642 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 643 .enable_mask = S2MPS14_ENABLE_MASK \ 644 } 645 646 static const struct regulator_desc s2mps14_regulators[] = { 647 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 648 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 649 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 652 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 653 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 654 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 655 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 656 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 657 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 658 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 659 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 660 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 661 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 662 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 663 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 664 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 665 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 666 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 667 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 668 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 669 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 670 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 671 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 672 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 673 S2MPS14_BUCK1235_START_SEL), 674 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 675 S2MPS14_BUCK1235_START_SEL), 676 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 677 S2MPS14_BUCK1235_START_SEL), 678 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 679 S2MPS14_BUCK4_START_SEL), 680 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 681 S2MPS14_BUCK1235_START_SEL), 682 }; 683 684 static struct regulator_ops s2mps15_reg_ldo_ops = { 685 .list_voltage = regulator_list_voltage_linear_range, 686 .map_voltage = regulator_map_voltage_linear_range, 687 .is_enabled = regulator_is_enabled_regmap, 688 .enable = regulator_enable_regmap, 689 .disable = regulator_disable_regmap, 690 .get_voltage_sel = regulator_get_voltage_sel_regmap, 691 .set_voltage_sel = regulator_set_voltage_sel_regmap, 692 }; 693 694 static struct regulator_ops s2mps15_reg_buck_ops = { 695 .list_voltage = regulator_list_voltage_linear_range, 696 .map_voltage = regulator_map_voltage_linear_range, 697 .is_enabled = regulator_is_enabled_regmap, 698 .enable = regulator_enable_regmap, 699 .disable = regulator_disable_regmap, 700 .get_voltage_sel = regulator_get_voltage_sel_regmap, 701 .set_voltage_sel = regulator_set_voltage_sel_regmap, 702 .set_voltage_time_sel = regulator_set_voltage_time_sel, 703 }; 704 705 #define regulator_desc_s2mps15_ldo(num, range) { \ 706 .name = "LDO"#num, \ 707 .id = S2MPS15_LDO##num, \ 708 .ops = &s2mps15_reg_ldo_ops, \ 709 .type = REGULATOR_VOLTAGE, \ 710 .owner = THIS_MODULE, \ 711 .linear_ranges = range, \ 712 .n_linear_ranges = ARRAY_SIZE(range), \ 713 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \ 714 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \ 715 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \ 716 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \ 717 .enable_mask = S2MPS15_ENABLE_MASK \ 718 } 719 720 #define regulator_desc_s2mps15_buck(num, range) { \ 721 .name = "BUCK"#num, \ 722 .id = S2MPS15_BUCK##num, \ 723 .ops = &s2mps15_reg_buck_ops, \ 724 .type = REGULATOR_VOLTAGE, \ 725 .owner = THIS_MODULE, \ 726 .linear_ranges = range, \ 727 .n_linear_ranges = ARRAY_SIZE(range), \ 728 .ramp_delay = 12500, \ 729 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \ 730 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \ 731 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \ 732 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \ 733 .enable_mask = S2MPS15_ENABLE_MASK \ 734 } 735 736 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ 737 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { 738 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), 739 }; 740 741 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ 742 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { 743 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), 744 }; 745 746 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ 747 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { 748 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), 749 }; 750 751 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ 752 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { 753 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), 754 }; 755 756 /* voltage range for s2mps15 LDO 1 */ 757 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { 758 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), 759 }; 760 761 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ 762 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { 763 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), 764 }; 765 766 /* voltage range for s2mps15 BUCK 8, 9 and 10 */ 767 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { 768 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), 769 }; 770 771 static const struct regulator_desc s2mps15_regulators[] = { 772 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5), 773 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2), 774 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1), 775 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3), 776 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1), 777 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2), 778 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4), 779 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4), 780 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4), 781 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4), 782 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3), 783 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3), 784 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3), 785 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2), 786 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1), 787 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1), 788 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2), 789 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1), 790 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2), 791 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1), 792 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2), 793 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3), 794 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1), 795 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2), 796 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2), 797 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3), 798 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1), 799 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1), 800 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1), 801 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1), 802 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1), 803 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1), 804 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1), 805 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1), 806 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2), 807 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2), 808 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2), 809 }; 810 811 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 812 struct regulator_dev *rdev) 813 { 814 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 815 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 816 } 817 818 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 819 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 820 { 821 int *gpio = s2mps11->ext_control_gpio; 822 unsigned int i; 823 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 824 S2MPS14_LDO12 }; 825 826 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 827 unsigned int reg = valid_regulators[i]; 828 829 if (!rdata[reg].init_data || !rdata[reg].of_node) 830 continue; 831 832 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 833 "samsung,ext-control-gpios", 0); 834 if (gpio_is_valid(gpio[reg])) 835 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 836 gpio[reg], reg, rdata[reg].name); 837 } 838 } 839 840 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 841 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11, 842 unsigned int rdev_num) 843 { 844 struct device_node *reg_np; 845 846 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 847 if (!reg_np) { 848 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 849 return -EINVAL; 850 } 851 852 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); 853 if (s2mps11->dev_type == S2MPS14X) 854 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 855 856 of_node_put(reg_np); 857 858 return 0; 859 } 860 861 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 862 { 863 unsigned int ramp_val, ramp_shift, ramp_reg; 864 865 switch (rdev_get_id(rdev)) { 866 case S2MPU02_BUCK1: 867 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 868 break; 869 case S2MPU02_BUCK2: 870 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 871 break; 872 case S2MPU02_BUCK3: 873 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 874 break; 875 case S2MPU02_BUCK4: 876 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 877 break; 878 default: 879 return 0; 880 } 881 ramp_reg = S2MPU02_REG_RAMP1; 882 ramp_val = get_ramp_delay(ramp_delay); 883 884 return regmap_update_bits(rdev->regmap, ramp_reg, 885 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 886 ramp_val << ramp_shift); 887 } 888 889 static struct regulator_ops s2mpu02_ldo_ops = { 890 .list_voltage = regulator_list_voltage_linear, 891 .map_voltage = regulator_map_voltage_linear, 892 .is_enabled = regulator_is_enabled_regmap, 893 .enable = s2mps14_regulator_enable, 894 .disable = regulator_disable_regmap, 895 .get_voltage_sel = regulator_get_voltage_sel_regmap, 896 .set_voltage_sel = regulator_set_voltage_sel_regmap, 897 .set_voltage_time_sel = regulator_set_voltage_time_sel, 898 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 899 }; 900 901 static struct regulator_ops s2mpu02_buck_ops = { 902 .list_voltage = regulator_list_voltage_linear, 903 .map_voltage = regulator_map_voltage_linear, 904 .is_enabled = regulator_is_enabled_regmap, 905 .enable = s2mps14_regulator_enable, 906 .disable = regulator_disable_regmap, 907 .get_voltage_sel = regulator_get_voltage_sel_regmap, 908 .set_voltage_sel = regulator_set_voltage_sel_regmap, 909 .set_voltage_time_sel = regulator_set_voltage_time_sel, 910 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 911 .set_ramp_delay = s2mpu02_set_ramp_delay, 912 }; 913 914 #define regulator_desc_s2mpu02_ldo1(num) { \ 915 .name = "LDO"#num, \ 916 .id = S2MPU02_LDO##num, \ 917 .ops = &s2mpu02_ldo_ops, \ 918 .type = REGULATOR_VOLTAGE, \ 919 .owner = THIS_MODULE, \ 920 .min_uV = S2MPU02_LDO_MIN_900MV, \ 921 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 922 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 923 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 924 .vsel_reg = S2MPU02_REG_L1CTRL, \ 925 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 926 .enable_reg = S2MPU02_REG_L1CTRL, \ 927 .enable_mask = S2MPU02_ENABLE_MASK \ 928 } 929 #define regulator_desc_s2mpu02_ldo2(num) { \ 930 .name = "LDO"#num, \ 931 .id = S2MPU02_LDO##num, \ 932 .ops = &s2mpu02_ldo_ops, \ 933 .type = REGULATOR_VOLTAGE, \ 934 .owner = THIS_MODULE, \ 935 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 936 .uV_step = S2MPU02_LDO_STEP_25MV, \ 937 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 938 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 939 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 940 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 941 .enable_reg = S2MPU02_REG_L2CTRL1, \ 942 .enable_mask = S2MPU02_ENABLE_MASK \ 943 } 944 #define regulator_desc_s2mpu02_ldo3(num) { \ 945 .name = "LDO"#num, \ 946 .id = S2MPU02_LDO##num, \ 947 .ops = &s2mpu02_ldo_ops, \ 948 .type = REGULATOR_VOLTAGE, \ 949 .owner = THIS_MODULE, \ 950 .min_uV = S2MPU02_LDO_MIN_900MV, \ 951 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 952 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 953 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 954 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 955 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 956 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 957 .enable_mask = S2MPU02_ENABLE_MASK \ 958 } 959 #define regulator_desc_s2mpu02_ldo4(num) { \ 960 .name = "LDO"#num, \ 961 .id = S2MPU02_LDO##num, \ 962 .ops = &s2mpu02_ldo_ops, \ 963 .type = REGULATOR_VOLTAGE, \ 964 .owner = THIS_MODULE, \ 965 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 966 .uV_step = S2MPU02_LDO_STEP_25MV, \ 967 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 968 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 969 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 970 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 971 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 972 .enable_mask = S2MPU02_ENABLE_MASK \ 973 } 974 #define regulator_desc_s2mpu02_ldo5(num) { \ 975 .name = "LDO"#num, \ 976 .id = S2MPU02_LDO##num, \ 977 .ops = &s2mpu02_ldo_ops, \ 978 .type = REGULATOR_VOLTAGE, \ 979 .owner = THIS_MODULE, \ 980 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 981 .uV_step = S2MPU02_LDO_STEP_50MV, \ 982 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 983 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 984 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 985 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 986 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 987 .enable_mask = S2MPU02_ENABLE_MASK \ 988 } 989 990 #define regulator_desc_s2mpu02_buck1234(num) { \ 991 .name = "BUCK"#num, \ 992 .id = S2MPU02_BUCK##num, \ 993 .ops = &s2mpu02_buck_ops, \ 994 .type = REGULATOR_VOLTAGE, \ 995 .owner = THIS_MODULE, \ 996 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 997 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 998 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 999 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 1000 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1001 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 1002 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1003 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 1004 .enable_mask = S2MPU02_ENABLE_MASK \ 1005 } 1006 #define regulator_desc_s2mpu02_buck5(num) { \ 1007 .name = "BUCK"#num, \ 1008 .id = S2MPU02_BUCK##num, \ 1009 .ops = &s2mpu02_ldo_ops, \ 1010 .type = REGULATOR_VOLTAGE, \ 1011 .owner = THIS_MODULE, \ 1012 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 1013 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 1014 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1015 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 1016 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1017 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 1018 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1019 .enable_reg = S2MPU02_REG_B5CTRL1, \ 1020 .enable_mask = S2MPU02_ENABLE_MASK \ 1021 } 1022 #define regulator_desc_s2mpu02_buck6(num) { \ 1023 .name = "BUCK"#num, \ 1024 .id = S2MPU02_BUCK##num, \ 1025 .ops = &s2mpu02_ldo_ops, \ 1026 .type = REGULATOR_VOLTAGE, \ 1027 .owner = THIS_MODULE, \ 1028 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 1029 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 1030 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1031 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 1032 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1033 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 1034 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1035 .enable_reg = S2MPU02_REG_B6CTRL1, \ 1036 .enable_mask = S2MPU02_ENABLE_MASK \ 1037 } 1038 #define regulator_desc_s2mpu02_buck7(num) { \ 1039 .name = "BUCK"#num, \ 1040 .id = S2MPU02_BUCK##num, \ 1041 .ops = &s2mpu02_ldo_ops, \ 1042 .type = REGULATOR_VOLTAGE, \ 1043 .owner = THIS_MODULE, \ 1044 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 1045 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 1046 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1047 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 1048 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1049 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 1050 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1051 .enable_reg = S2MPU02_REG_B7CTRL1, \ 1052 .enable_mask = S2MPU02_ENABLE_MASK \ 1053 } 1054 1055 static const struct regulator_desc s2mpu02_regulators[] = { 1056 regulator_desc_s2mpu02_ldo1(1), 1057 regulator_desc_s2mpu02_ldo2(2), 1058 regulator_desc_s2mpu02_ldo4(3), 1059 regulator_desc_s2mpu02_ldo5(4), 1060 regulator_desc_s2mpu02_ldo4(5), 1061 regulator_desc_s2mpu02_ldo3(6), 1062 regulator_desc_s2mpu02_ldo3(7), 1063 regulator_desc_s2mpu02_ldo4(8), 1064 regulator_desc_s2mpu02_ldo5(9), 1065 regulator_desc_s2mpu02_ldo3(10), 1066 regulator_desc_s2mpu02_ldo4(11), 1067 regulator_desc_s2mpu02_ldo5(12), 1068 regulator_desc_s2mpu02_ldo5(13), 1069 regulator_desc_s2mpu02_ldo5(14), 1070 regulator_desc_s2mpu02_ldo5(15), 1071 regulator_desc_s2mpu02_ldo5(16), 1072 regulator_desc_s2mpu02_ldo4(17), 1073 regulator_desc_s2mpu02_ldo5(18), 1074 regulator_desc_s2mpu02_ldo3(19), 1075 regulator_desc_s2mpu02_ldo4(20), 1076 regulator_desc_s2mpu02_ldo5(21), 1077 regulator_desc_s2mpu02_ldo5(22), 1078 regulator_desc_s2mpu02_ldo5(23), 1079 regulator_desc_s2mpu02_ldo4(24), 1080 regulator_desc_s2mpu02_ldo5(25), 1081 regulator_desc_s2mpu02_ldo4(26), 1082 regulator_desc_s2mpu02_ldo5(27), 1083 regulator_desc_s2mpu02_ldo5(28), 1084 regulator_desc_s2mpu02_buck1234(1), 1085 regulator_desc_s2mpu02_buck1234(2), 1086 regulator_desc_s2mpu02_buck1234(3), 1087 regulator_desc_s2mpu02_buck1234(4), 1088 regulator_desc_s2mpu02_buck5(5), 1089 regulator_desc_s2mpu02_buck6(6), 1090 regulator_desc_s2mpu02_buck7(7), 1091 }; 1092 1093 static int s2mps11_pmic_probe(struct platform_device *pdev) 1094 { 1095 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 1096 struct sec_platform_data *pdata = NULL; 1097 struct of_regulator_match *rdata = NULL; 1098 struct regulator_config config = { }; 1099 struct s2mps11_info *s2mps11; 1100 unsigned int rdev_num = 0; 1101 int i, ret = 0; 1102 const struct regulator_desc *regulators; 1103 1104 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 1105 GFP_KERNEL); 1106 if (!s2mps11) 1107 return -ENOMEM; 1108 1109 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 1110 switch (s2mps11->dev_type) { 1111 case S2MPS11X: 1112 rdev_num = ARRAY_SIZE(s2mps11_regulators); 1113 regulators = s2mps11_regulators; 1114 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators)); 1115 break; 1116 case S2MPS13X: 1117 rdev_num = ARRAY_SIZE(s2mps13_regulators); 1118 regulators = s2mps13_regulators; 1119 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators)); 1120 break; 1121 case S2MPS14X: 1122 rdev_num = ARRAY_SIZE(s2mps14_regulators); 1123 regulators = s2mps14_regulators; 1124 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators)); 1125 break; 1126 case S2MPS15X: 1127 rdev_num = ARRAY_SIZE(s2mps15_regulators); 1128 regulators = s2mps15_regulators; 1129 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators)); 1130 break; 1131 case S2MPU02: 1132 rdev_num = ARRAY_SIZE(s2mpu02_regulators); 1133 regulators = s2mpu02_regulators; 1134 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators)); 1135 break; 1136 default: 1137 dev_err(&pdev->dev, "Invalid device type: %u\n", 1138 s2mps11->dev_type); 1139 return -EINVAL; 1140 } 1141 1142 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, 1143 sizeof(*s2mps11->ext_control_gpio) * rdev_num, 1144 GFP_KERNEL); 1145 if (!s2mps11->ext_control_gpio) 1146 return -ENOMEM; 1147 /* 1148 * 0 is a valid GPIO so initialize all GPIO-s to negative value 1149 * to indicate that external control won't be used for this regulator. 1150 */ 1151 for (i = 0; i < rdev_num; i++) 1152 s2mps11->ext_control_gpio[i] = -EINVAL; 1153 1154 if (!iodev->dev->of_node) { 1155 if (iodev->pdata) { 1156 pdata = iodev->pdata; 1157 goto common_reg; 1158 } else { 1159 dev_err(pdev->dev.parent, 1160 "Platform data or DT node not supplied\n"); 1161 return -ENODEV; 1162 } 1163 } 1164 1165 rdata = kzalloc(sizeof(*rdata) * rdev_num, GFP_KERNEL); 1166 if (!rdata) 1167 return -ENOMEM; 1168 1169 for (i = 0; i < rdev_num; i++) 1170 rdata[i].name = regulators[i].name; 1171 1172 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num); 1173 if (ret) 1174 goto out; 1175 1176 common_reg: 1177 platform_set_drvdata(pdev, s2mps11); 1178 1179 config.dev = &pdev->dev; 1180 config.regmap = iodev->regmap_pmic; 1181 config.driver_data = s2mps11; 1182 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1183 config.ena_gpio_initialized = true; 1184 for (i = 0; i < rdev_num; i++) { 1185 struct regulator_dev *regulator; 1186 1187 if (pdata) { 1188 config.init_data = pdata->regulators[i].initdata; 1189 config.of_node = pdata->regulators[i].reg_node; 1190 } else { 1191 config.init_data = rdata[i].init_data; 1192 config.of_node = rdata[i].of_node; 1193 } 1194 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1195 1196 regulator = devm_regulator_register(&pdev->dev, 1197 ®ulators[i], &config); 1198 if (IS_ERR(regulator)) { 1199 ret = PTR_ERR(regulator); 1200 dev_err(&pdev->dev, "regulator init failed for %d\n", 1201 i); 1202 goto out; 1203 } 1204 1205 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1206 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1207 regulator); 1208 if (ret < 0) { 1209 dev_err(&pdev->dev, 1210 "failed to enable GPIO control over %s: %d\n", 1211 regulator->desc->name, ret); 1212 goto out; 1213 } 1214 } 1215 } 1216 1217 out: 1218 kfree(rdata); 1219 1220 return ret; 1221 } 1222 1223 static const struct platform_device_id s2mps11_pmic_id[] = { 1224 { "s2mps11-regulator", S2MPS11X}, 1225 { "s2mps13-regulator", S2MPS13X}, 1226 { "s2mps14-regulator", S2MPS14X}, 1227 { "s2mps15-regulator", S2MPS15X}, 1228 { "s2mpu02-regulator", S2MPU02}, 1229 { }, 1230 }; 1231 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1232 1233 static struct platform_driver s2mps11_pmic_driver = { 1234 .driver = { 1235 .name = "s2mps11-pmic", 1236 }, 1237 .probe = s2mps11_pmic_probe, 1238 .id_table = s2mps11_pmic_id, 1239 }; 1240 1241 module_platform_driver(s2mps11_pmic_driver); 1242 1243 /* Module information */ 1244 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1245 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver"); 1246 MODULE_LICENSE("GPL"); 1247