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 struct s2mps11_info { 38 unsigned int rdev_num; 39 int ramp_delay2; 40 int ramp_delay34; 41 int ramp_delay5; 42 int ramp_delay16; 43 int ramp_delay7810; 44 int ramp_delay9; 45 46 enum sec_device_type dev_type; 47 48 /* 49 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether 50 * the suspend mode was enabled. 51 */ 52 unsigned long long s2mps14_suspend_state:50; 53 54 /* Array of size rdev_num with GPIO-s for external sleep control */ 55 int *ext_control_gpio; 56 }; 57 58 static int get_ramp_delay(int ramp_delay) 59 { 60 unsigned char cnt = 0; 61 62 ramp_delay /= 6250; 63 64 while (true) { 65 ramp_delay = ramp_delay >> 1; 66 if (ramp_delay == 0) 67 break; 68 cnt++; 69 } 70 71 if (cnt > 3) 72 cnt = 3; 73 74 return cnt; 75 } 76 77 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 78 unsigned int old_selector, 79 unsigned int new_selector) 80 { 81 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 82 unsigned int ramp_delay = 0; 83 int old_volt, new_volt; 84 85 switch (rdev_get_id(rdev)) { 86 case S2MPS11_BUCK2: 87 ramp_delay = s2mps11->ramp_delay2; 88 break; 89 case S2MPS11_BUCK3: 90 case S2MPS11_BUCK4: 91 ramp_delay = s2mps11->ramp_delay34; 92 break; 93 case S2MPS11_BUCK5: 94 ramp_delay = s2mps11->ramp_delay5; 95 break; 96 case S2MPS11_BUCK6: 97 case S2MPS11_BUCK1: 98 ramp_delay = s2mps11->ramp_delay16; 99 break; 100 case S2MPS11_BUCK7: 101 case S2MPS11_BUCK8: 102 case S2MPS11_BUCK10: 103 ramp_delay = s2mps11->ramp_delay7810; 104 break; 105 case S2MPS11_BUCK9: 106 ramp_delay = s2mps11->ramp_delay9; 107 } 108 109 if (ramp_delay == 0) 110 ramp_delay = rdev->desc->ramp_delay; 111 112 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 113 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 114 115 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 116 } 117 118 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 119 { 120 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 121 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 122 unsigned int ramp_enable = 1, enable_shift = 0; 123 int ret; 124 125 switch (rdev_get_id(rdev)) { 126 case S2MPS11_BUCK1: 127 if (ramp_delay > s2mps11->ramp_delay16) 128 s2mps11->ramp_delay16 = ramp_delay; 129 else 130 ramp_delay = s2mps11->ramp_delay16; 131 132 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 133 break; 134 case S2MPS11_BUCK2: 135 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 136 if (!ramp_delay) { 137 ramp_enable = 0; 138 break; 139 } 140 141 s2mps11->ramp_delay2 = ramp_delay; 142 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 143 ramp_reg = S2MPS11_REG_RAMP; 144 break; 145 case S2MPS11_BUCK3: 146 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 147 if (!ramp_delay) { 148 ramp_enable = 0; 149 break; 150 } 151 152 if (ramp_delay > s2mps11->ramp_delay34) 153 s2mps11->ramp_delay34 = ramp_delay; 154 else 155 ramp_delay = s2mps11->ramp_delay34; 156 157 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 158 ramp_reg = S2MPS11_REG_RAMP; 159 break; 160 case S2MPS11_BUCK4: 161 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 162 if (!ramp_delay) { 163 ramp_enable = 0; 164 break; 165 } 166 167 if (ramp_delay > s2mps11->ramp_delay34) 168 s2mps11->ramp_delay34 = ramp_delay; 169 else 170 ramp_delay = s2mps11->ramp_delay34; 171 172 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 173 ramp_reg = S2MPS11_REG_RAMP; 174 break; 175 case S2MPS11_BUCK5: 176 s2mps11->ramp_delay5 = ramp_delay; 177 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 178 break; 179 case S2MPS11_BUCK6: 180 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 181 if (!ramp_delay) { 182 ramp_enable = 0; 183 break; 184 } 185 186 if (ramp_delay > s2mps11->ramp_delay16) 187 s2mps11->ramp_delay16 = ramp_delay; 188 else 189 ramp_delay = s2mps11->ramp_delay16; 190 191 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 192 break; 193 case S2MPS11_BUCK7: 194 case S2MPS11_BUCK8: 195 case S2MPS11_BUCK10: 196 if (ramp_delay > s2mps11->ramp_delay7810) 197 s2mps11->ramp_delay7810 = ramp_delay; 198 else 199 ramp_delay = s2mps11->ramp_delay7810; 200 201 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 202 break; 203 case S2MPS11_BUCK9: 204 s2mps11->ramp_delay9 = ramp_delay; 205 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 206 break; 207 default: 208 return 0; 209 } 210 211 if (!ramp_enable) 212 goto ramp_disable; 213 214 /* Ramp delay can be enabled/disabled only for buck[2346] */ 215 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 216 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 217 rdev_get_id(rdev) == S2MPS11_BUCK6) { 218 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 219 1 << enable_shift, 1 << enable_shift); 220 if (ret) { 221 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 222 return ret; 223 } 224 } 225 226 ramp_val = get_ramp_delay(ramp_delay); 227 228 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 229 ramp_val << ramp_shift); 230 231 ramp_disable: 232 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 233 1 << enable_shift, 0); 234 } 235 236 static struct regulator_ops s2mps11_ldo_ops = { 237 .list_voltage = regulator_list_voltage_linear, 238 .map_voltage = regulator_map_voltage_linear, 239 .is_enabled = regulator_is_enabled_regmap, 240 .enable = regulator_enable_regmap, 241 .disable = regulator_disable_regmap, 242 .get_voltage_sel = regulator_get_voltage_sel_regmap, 243 .set_voltage_sel = regulator_set_voltage_sel_regmap, 244 .set_voltage_time_sel = regulator_set_voltage_time_sel, 245 }; 246 247 static struct regulator_ops s2mps11_buck_ops = { 248 .list_voltage = regulator_list_voltage_linear, 249 .map_voltage = regulator_map_voltage_linear, 250 .is_enabled = regulator_is_enabled_regmap, 251 .enable = regulator_enable_regmap, 252 .disable = regulator_disable_regmap, 253 .get_voltage_sel = regulator_get_voltage_sel_regmap, 254 .set_voltage_sel = regulator_set_voltage_sel_regmap, 255 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel, 256 .set_ramp_delay = s2mps11_set_ramp_delay, 257 }; 258 259 #define regulator_desc_s2mps11_ldo(num, step) { \ 260 .name = "LDO"#num, \ 261 .id = S2MPS11_LDO##num, \ 262 .ops = &s2mps11_ldo_ops, \ 263 .type = REGULATOR_VOLTAGE, \ 264 .owner = THIS_MODULE, \ 265 .min_uV = MIN_800_MV, \ 266 .uV_step = step, \ 267 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 268 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 269 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 270 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 271 .enable_mask = S2MPS11_ENABLE_MASK \ 272 } 273 274 #define regulator_desc_s2mps11_buck1_4(num) { \ 275 .name = "BUCK"#num, \ 276 .id = S2MPS11_BUCK##num, \ 277 .ops = &s2mps11_buck_ops, \ 278 .type = REGULATOR_VOLTAGE, \ 279 .owner = THIS_MODULE, \ 280 .min_uV = MIN_600_MV, \ 281 .uV_step = STEP_6_25_MV, \ 282 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 283 .ramp_delay = S2MPS11_RAMP_DELAY, \ 284 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 285 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 286 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 287 .enable_mask = S2MPS11_ENABLE_MASK \ 288 } 289 290 #define regulator_desc_s2mps11_buck5 { \ 291 .name = "BUCK5", \ 292 .id = S2MPS11_BUCK5, \ 293 .ops = &s2mps11_buck_ops, \ 294 .type = REGULATOR_VOLTAGE, \ 295 .owner = THIS_MODULE, \ 296 .min_uV = MIN_600_MV, \ 297 .uV_step = STEP_6_25_MV, \ 298 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 299 .ramp_delay = S2MPS11_RAMP_DELAY, \ 300 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 301 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 302 .enable_reg = S2MPS11_REG_B5CTRL1, \ 303 .enable_mask = S2MPS11_ENABLE_MASK \ 304 } 305 306 #define regulator_desc_s2mps11_buck6_10(num, min, step) { \ 307 .name = "BUCK"#num, \ 308 .id = S2MPS11_BUCK##num, \ 309 .ops = &s2mps11_buck_ops, \ 310 .type = REGULATOR_VOLTAGE, \ 311 .owner = THIS_MODULE, \ 312 .min_uV = min, \ 313 .uV_step = step, \ 314 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 315 .ramp_delay = S2MPS11_RAMP_DELAY, \ 316 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 317 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 318 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 319 .enable_mask = S2MPS11_ENABLE_MASK \ 320 } 321 322 static const struct regulator_desc s2mps11_regulators[] = { 323 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 324 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 325 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 326 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 327 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 328 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 329 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 330 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 331 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 332 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 333 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 334 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 335 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 336 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 337 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 338 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 339 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 340 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 341 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 342 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 343 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 345 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 346 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 347 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 348 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 350 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 352 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 353 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 354 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(35, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 361 regulator_desc_s2mps11_buck1_4(1), 362 regulator_desc_s2mps11_buck1_4(2), 363 regulator_desc_s2mps11_buck1_4(3), 364 regulator_desc_s2mps11_buck1_4(4), 365 regulator_desc_s2mps11_buck5, 366 regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV), 367 regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV), 368 regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV), 369 regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV), 370 regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), 371 }; 372 373 static struct regulator_ops s2mps14_reg_ops; 374 375 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 376 .name = "LDO"#num, \ 377 .id = S2MPS13_LDO##num, \ 378 .ops = &s2mps14_reg_ops, \ 379 .type = REGULATOR_VOLTAGE, \ 380 .owner = THIS_MODULE, \ 381 .min_uV = min, \ 382 .uV_step = step, \ 383 .linear_min_sel = min_sel, \ 384 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 385 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 386 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 387 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 388 .enable_mask = S2MPS14_ENABLE_MASK \ 389 } 390 391 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 392 .name = "BUCK"#num, \ 393 .id = S2MPS13_BUCK##num, \ 394 .ops = &s2mps14_reg_ops, \ 395 .type = REGULATOR_VOLTAGE, \ 396 .owner = THIS_MODULE, \ 397 .min_uV = min, \ 398 .uV_step = step, \ 399 .linear_min_sel = min_sel, \ 400 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 401 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 402 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 403 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 404 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 405 .enable_mask = S2MPS14_ENABLE_MASK \ 406 } 407 408 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 409 .name = "BUCK"#num, \ 410 .id = S2MPS13_BUCK##num, \ 411 .ops = &s2mps14_reg_ops, \ 412 .type = REGULATOR_VOLTAGE, \ 413 .owner = THIS_MODULE, \ 414 .min_uV = min, \ 415 .uV_step = step, \ 416 .linear_min_sel = min_sel, \ 417 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 418 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 419 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 420 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 421 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 422 .enable_mask = S2MPS14_ENABLE_MASK \ 423 } 424 425 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 426 .name = "BUCK"#num, \ 427 .id = S2MPS13_BUCK##num, \ 428 .ops = &s2mps14_reg_ops, \ 429 .type = REGULATOR_VOLTAGE, \ 430 .owner = THIS_MODULE, \ 431 .min_uV = min, \ 432 .uV_step = step, \ 433 .linear_min_sel = min_sel, \ 434 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 435 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 436 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 437 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 438 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 439 .enable_mask = S2MPS14_ENABLE_MASK \ 440 } 441 442 static const struct regulator_desc s2mps13_regulators[] = { 443 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 444 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 445 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 446 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 447 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 448 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 449 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 450 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 451 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 452 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 453 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 454 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 455 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 456 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 457 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 458 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 459 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 460 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 461 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 462 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 463 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 464 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 465 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 466 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 467 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 468 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 469 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 470 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 471 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 472 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 473 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 474 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 475 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 476 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 477 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 478 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 479 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 480 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 482 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 483 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 484 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 485 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 486 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 487 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 488 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 489 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 490 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 491 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 492 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 493 }; 494 495 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 496 { 497 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 498 unsigned int val; 499 500 switch (s2mps11->dev_type) { 501 case S2MPS13X: 502 case S2MPS14X: 503 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev))) 504 val = S2MPS14_ENABLE_SUSPEND; 505 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 506 val = S2MPS14_ENABLE_EXT_CONTROL; 507 else 508 val = rdev->desc->enable_mask; 509 break; 510 case S2MPU02: 511 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev))) 512 val = S2MPU02_ENABLE_SUSPEND; 513 else 514 val = rdev->desc->enable_mask; 515 break; 516 default: 517 return -EINVAL; 518 } 519 520 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 521 rdev->desc->enable_mask, val); 522 } 523 524 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 525 { 526 int ret; 527 unsigned int val, state; 528 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 529 int rdev_id = rdev_get_id(rdev); 530 531 /* Below LDO should be always on or does not support suspend mode. */ 532 switch (s2mps11->dev_type) { 533 case S2MPS13X: 534 case S2MPS14X: 535 switch (rdev_id) { 536 case S2MPS14_LDO3: 537 return 0; 538 default: 539 state = S2MPS14_ENABLE_SUSPEND; 540 break; 541 } 542 break; 543 case S2MPU02: 544 switch (rdev_id) { 545 case S2MPU02_LDO13: 546 case S2MPU02_LDO14: 547 case S2MPU02_LDO15: 548 case S2MPU02_LDO17: 549 case S2MPU02_BUCK7: 550 state = S2MPU02_DISABLE_SUSPEND; 551 break; 552 default: 553 state = S2MPU02_ENABLE_SUSPEND; 554 break; 555 } 556 break; 557 default: 558 return -EINVAL; 559 } 560 561 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 562 if (ret < 0) 563 return ret; 564 565 s2mps11->s2mps14_suspend_state |= (1 << rdev_get_id(rdev)); 566 /* 567 * Don't enable suspend mode if regulator is already disabled because 568 * this would effectively for a short time turn on the regulator after 569 * resuming. 570 * However we still want to toggle the suspend_state bit for regulator 571 * in case if it got enabled before suspending the system. 572 */ 573 if (!(val & rdev->desc->enable_mask)) 574 return 0; 575 576 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 577 rdev->desc->enable_mask, state); 578 } 579 580 static struct regulator_ops s2mps14_reg_ops = { 581 .list_voltage = regulator_list_voltage_linear, 582 .map_voltage = regulator_map_voltage_linear, 583 .is_enabled = regulator_is_enabled_regmap, 584 .enable = s2mps14_regulator_enable, 585 .disable = regulator_disable_regmap, 586 .get_voltage_sel = regulator_get_voltage_sel_regmap, 587 .set_voltage_sel = regulator_set_voltage_sel_regmap, 588 .set_voltage_time_sel = regulator_set_voltage_time_sel, 589 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 590 }; 591 592 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 593 .name = "LDO"#num, \ 594 .id = S2MPS14_LDO##num, \ 595 .ops = &s2mps14_reg_ops, \ 596 .type = REGULATOR_VOLTAGE, \ 597 .owner = THIS_MODULE, \ 598 .min_uV = min, \ 599 .uV_step = step, \ 600 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 601 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 602 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 603 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 604 .enable_mask = S2MPS14_ENABLE_MASK \ 605 } 606 607 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 608 .name = "BUCK"#num, \ 609 .id = S2MPS14_BUCK##num, \ 610 .ops = &s2mps14_reg_ops, \ 611 .type = REGULATOR_VOLTAGE, \ 612 .owner = THIS_MODULE, \ 613 .min_uV = min, \ 614 .uV_step = step, \ 615 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 616 .linear_min_sel = min_sel, \ 617 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 618 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 619 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 620 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 621 .enable_mask = S2MPS14_ENABLE_MASK \ 622 } 623 624 static const struct regulator_desc s2mps14_regulators[] = { 625 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 626 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 627 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 628 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 629 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 630 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 631 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 632 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 633 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 634 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 635 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 636 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 637 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 638 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 639 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 640 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 641 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 642 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 643 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 644 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 645 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 647 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 649 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 651 S2MPS14_BUCK1235_START_SEL), 652 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 653 S2MPS14_BUCK1235_START_SEL), 654 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 655 S2MPS14_BUCK1235_START_SEL), 656 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 657 S2MPS14_BUCK4_START_SEL), 658 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 659 S2MPS14_BUCK1235_START_SEL), 660 }; 661 662 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 663 struct regulator_dev *rdev) 664 { 665 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 666 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 667 } 668 669 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 670 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 671 { 672 int *gpio = s2mps11->ext_control_gpio; 673 unsigned int i; 674 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 675 S2MPS14_LDO12 }; 676 677 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 678 unsigned int reg = valid_regulators[i]; 679 680 if (!rdata[reg].init_data || !rdata[reg].of_node) 681 continue; 682 683 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 684 "samsung,ext-control-gpios", 0); 685 if (gpio_is_valid(gpio[reg])) 686 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 687 gpio[reg], reg, rdata[reg].name); 688 } 689 } 690 691 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 692 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 693 { 694 struct device_node *reg_np; 695 696 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 697 if (!reg_np) { 698 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 699 return -EINVAL; 700 } 701 702 of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num); 703 if (s2mps11->dev_type == S2MPS14X) 704 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 705 706 of_node_put(reg_np); 707 708 return 0; 709 } 710 711 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 712 { 713 unsigned int ramp_val, ramp_shift, ramp_reg; 714 715 switch (rdev_get_id(rdev)) { 716 case S2MPU02_BUCK1: 717 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 718 break; 719 case S2MPU02_BUCK2: 720 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 721 break; 722 case S2MPU02_BUCK3: 723 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 724 break; 725 case S2MPU02_BUCK4: 726 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 727 break; 728 default: 729 return 0; 730 } 731 ramp_reg = S2MPU02_REG_RAMP1; 732 ramp_val = get_ramp_delay(ramp_delay); 733 734 return regmap_update_bits(rdev->regmap, ramp_reg, 735 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 736 ramp_val << ramp_shift); 737 } 738 739 static struct regulator_ops s2mpu02_ldo_ops = { 740 .list_voltage = regulator_list_voltage_linear, 741 .map_voltage = regulator_map_voltage_linear, 742 .is_enabled = regulator_is_enabled_regmap, 743 .enable = s2mps14_regulator_enable, 744 .disable = regulator_disable_regmap, 745 .get_voltage_sel = regulator_get_voltage_sel_regmap, 746 .set_voltage_sel = regulator_set_voltage_sel_regmap, 747 .set_voltage_time_sel = regulator_set_voltage_time_sel, 748 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 749 }; 750 751 static struct regulator_ops s2mpu02_buck_ops = { 752 .list_voltage = regulator_list_voltage_linear, 753 .map_voltage = regulator_map_voltage_linear, 754 .is_enabled = regulator_is_enabled_regmap, 755 .enable = s2mps14_regulator_enable, 756 .disable = regulator_disable_regmap, 757 .get_voltage_sel = regulator_get_voltage_sel_regmap, 758 .set_voltage_sel = regulator_set_voltage_sel_regmap, 759 .set_voltage_time_sel = regulator_set_voltage_time_sel, 760 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 761 .set_ramp_delay = s2mpu02_set_ramp_delay, 762 }; 763 764 #define regulator_desc_s2mpu02_ldo1(num) { \ 765 .name = "LDO"#num, \ 766 .id = S2MPU02_LDO##num, \ 767 .ops = &s2mpu02_ldo_ops, \ 768 .type = REGULATOR_VOLTAGE, \ 769 .owner = THIS_MODULE, \ 770 .min_uV = S2MPU02_LDO_MIN_900MV, \ 771 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 772 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 773 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 774 .vsel_reg = S2MPU02_REG_L1CTRL, \ 775 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 776 .enable_reg = S2MPU02_REG_L1CTRL, \ 777 .enable_mask = S2MPU02_ENABLE_MASK \ 778 } 779 #define regulator_desc_s2mpu02_ldo2(num) { \ 780 .name = "LDO"#num, \ 781 .id = S2MPU02_LDO##num, \ 782 .ops = &s2mpu02_ldo_ops, \ 783 .type = REGULATOR_VOLTAGE, \ 784 .owner = THIS_MODULE, \ 785 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 786 .uV_step = S2MPU02_LDO_STEP_25MV, \ 787 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 788 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 789 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 790 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 791 .enable_reg = S2MPU02_REG_L2CTRL1, \ 792 .enable_mask = S2MPU02_ENABLE_MASK \ 793 } 794 #define regulator_desc_s2mpu02_ldo3(num) { \ 795 .name = "LDO"#num, \ 796 .id = S2MPU02_LDO##num, \ 797 .ops = &s2mpu02_ldo_ops, \ 798 .type = REGULATOR_VOLTAGE, \ 799 .owner = THIS_MODULE, \ 800 .min_uV = S2MPU02_LDO_MIN_900MV, \ 801 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 802 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 803 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 804 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 805 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 806 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 807 .enable_mask = S2MPU02_ENABLE_MASK \ 808 } 809 #define regulator_desc_s2mpu02_ldo4(num) { \ 810 .name = "LDO"#num, \ 811 .id = S2MPU02_LDO##num, \ 812 .ops = &s2mpu02_ldo_ops, \ 813 .type = REGULATOR_VOLTAGE, \ 814 .owner = THIS_MODULE, \ 815 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 816 .uV_step = S2MPU02_LDO_STEP_25MV, \ 817 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 818 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 819 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 820 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 821 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 822 .enable_mask = S2MPU02_ENABLE_MASK \ 823 } 824 #define regulator_desc_s2mpu02_ldo5(num) { \ 825 .name = "LDO"#num, \ 826 .id = S2MPU02_LDO##num, \ 827 .ops = &s2mpu02_ldo_ops, \ 828 .type = REGULATOR_VOLTAGE, \ 829 .owner = THIS_MODULE, \ 830 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 831 .uV_step = S2MPU02_LDO_STEP_50MV, \ 832 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 833 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 834 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 835 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 836 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 837 .enable_mask = S2MPU02_ENABLE_MASK \ 838 } 839 840 #define regulator_desc_s2mpu02_buck1234(num) { \ 841 .name = "BUCK"#num, \ 842 .id = S2MPU02_BUCK##num, \ 843 .ops = &s2mpu02_buck_ops, \ 844 .type = REGULATOR_VOLTAGE, \ 845 .owner = THIS_MODULE, \ 846 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 847 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 848 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 849 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 850 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 851 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 852 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 853 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 854 .enable_mask = S2MPU02_ENABLE_MASK \ 855 } 856 #define regulator_desc_s2mpu02_buck5(num) { \ 857 .name = "BUCK"#num, \ 858 .id = S2MPU02_BUCK##num, \ 859 .ops = &s2mpu02_ldo_ops, \ 860 .type = REGULATOR_VOLTAGE, \ 861 .owner = THIS_MODULE, \ 862 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 863 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 864 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 865 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 866 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 867 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 868 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 869 .enable_reg = S2MPU02_REG_B5CTRL1, \ 870 .enable_mask = S2MPU02_ENABLE_MASK \ 871 } 872 #define regulator_desc_s2mpu02_buck6(num) { \ 873 .name = "BUCK"#num, \ 874 .id = S2MPU02_BUCK##num, \ 875 .ops = &s2mpu02_ldo_ops, \ 876 .type = REGULATOR_VOLTAGE, \ 877 .owner = THIS_MODULE, \ 878 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 879 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 880 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 881 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 882 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 883 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 884 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 885 .enable_reg = S2MPU02_REG_B6CTRL1, \ 886 .enable_mask = S2MPU02_ENABLE_MASK \ 887 } 888 #define regulator_desc_s2mpu02_buck7(num) { \ 889 .name = "BUCK"#num, \ 890 .id = S2MPU02_BUCK##num, \ 891 .ops = &s2mpu02_ldo_ops, \ 892 .type = REGULATOR_VOLTAGE, \ 893 .owner = THIS_MODULE, \ 894 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 895 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 896 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 897 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 898 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 899 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 900 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 901 .enable_reg = S2MPU02_REG_B7CTRL1, \ 902 .enable_mask = S2MPU02_ENABLE_MASK \ 903 } 904 905 static const struct regulator_desc s2mpu02_regulators[] = { 906 regulator_desc_s2mpu02_ldo1(1), 907 regulator_desc_s2mpu02_ldo2(2), 908 regulator_desc_s2mpu02_ldo4(3), 909 regulator_desc_s2mpu02_ldo5(4), 910 regulator_desc_s2mpu02_ldo4(5), 911 regulator_desc_s2mpu02_ldo3(6), 912 regulator_desc_s2mpu02_ldo3(7), 913 regulator_desc_s2mpu02_ldo4(8), 914 regulator_desc_s2mpu02_ldo5(9), 915 regulator_desc_s2mpu02_ldo3(10), 916 regulator_desc_s2mpu02_ldo4(11), 917 regulator_desc_s2mpu02_ldo5(12), 918 regulator_desc_s2mpu02_ldo5(13), 919 regulator_desc_s2mpu02_ldo5(14), 920 regulator_desc_s2mpu02_ldo5(15), 921 regulator_desc_s2mpu02_ldo5(16), 922 regulator_desc_s2mpu02_ldo4(17), 923 regulator_desc_s2mpu02_ldo5(18), 924 regulator_desc_s2mpu02_ldo3(19), 925 regulator_desc_s2mpu02_ldo4(20), 926 regulator_desc_s2mpu02_ldo5(21), 927 regulator_desc_s2mpu02_ldo5(22), 928 regulator_desc_s2mpu02_ldo5(23), 929 regulator_desc_s2mpu02_ldo4(24), 930 regulator_desc_s2mpu02_ldo5(25), 931 regulator_desc_s2mpu02_ldo4(26), 932 regulator_desc_s2mpu02_ldo5(27), 933 regulator_desc_s2mpu02_ldo5(28), 934 regulator_desc_s2mpu02_buck1234(1), 935 regulator_desc_s2mpu02_buck1234(2), 936 regulator_desc_s2mpu02_buck1234(3), 937 regulator_desc_s2mpu02_buck1234(4), 938 regulator_desc_s2mpu02_buck5(5), 939 regulator_desc_s2mpu02_buck6(6), 940 regulator_desc_s2mpu02_buck7(7), 941 }; 942 943 static int s2mps11_pmic_probe(struct platform_device *pdev) 944 { 945 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 946 struct sec_platform_data *pdata = NULL; 947 struct of_regulator_match *rdata = NULL; 948 struct regulator_config config = { }; 949 struct s2mps11_info *s2mps11; 950 int i, ret = 0; 951 const struct regulator_desc *regulators; 952 953 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 954 GFP_KERNEL); 955 if (!s2mps11) 956 return -ENOMEM; 957 958 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 959 switch (s2mps11->dev_type) { 960 case S2MPS11X: 961 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); 962 regulators = s2mps11_regulators; 963 break; 964 case S2MPS13X: 965 s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); 966 regulators = s2mps13_regulators; 967 break; 968 case S2MPS14X: 969 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); 970 regulators = s2mps14_regulators; 971 break; 972 case S2MPU02: 973 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators); 974 regulators = s2mpu02_regulators; 975 break; 976 default: 977 dev_err(&pdev->dev, "Invalid device type: %u\n", 978 s2mps11->dev_type); 979 return -EINVAL; 980 } 981 982 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, 983 sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num, 984 GFP_KERNEL); 985 if (!s2mps11->ext_control_gpio) 986 return -ENOMEM; 987 /* 988 * 0 is a valid GPIO so initialize all GPIO-s to negative value 989 * to indicate that external control won't be used for this regulator. 990 */ 991 for (i = 0; i < s2mps11->rdev_num; i++) 992 s2mps11->ext_control_gpio[i] = -EINVAL; 993 994 if (!iodev->dev->of_node) { 995 if (iodev->pdata) { 996 pdata = iodev->pdata; 997 goto common_reg; 998 } else { 999 dev_err(pdev->dev.parent, 1000 "Platform data or DT node not supplied\n"); 1001 return -ENODEV; 1002 } 1003 } 1004 1005 rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL); 1006 if (!rdata) 1007 return -ENOMEM; 1008 1009 for (i = 0; i < s2mps11->rdev_num; i++) 1010 rdata[i].name = regulators[i].name; 1011 1012 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11); 1013 if (ret) 1014 goto out; 1015 1016 common_reg: 1017 platform_set_drvdata(pdev, s2mps11); 1018 1019 config.dev = &pdev->dev; 1020 config.regmap = iodev->regmap_pmic; 1021 config.driver_data = s2mps11; 1022 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1023 config.ena_gpio_initialized = true; 1024 for (i = 0; i < s2mps11->rdev_num; i++) { 1025 struct regulator_dev *regulator; 1026 1027 if (pdata) { 1028 config.init_data = pdata->regulators[i].initdata; 1029 config.of_node = pdata->regulators[i].reg_node; 1030 } else { 1031 config.init_data = rdata[i].init_data; 1032 config.of_node = rdata[i].of_node; 1033 } 1034 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1035 1036 regulator = devm_regulator_register(&pdev->dev, 1037 ®ulators[i], &config); 1038 if (IS_ERR(regulator)) { 1039 ret = PTR_ERR(regulator); 1040 dev_err(&pdev->dev, "regulator init failed for %d\n", 1041 i); 1042 goto out; 1043 } 1044 1045 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1046 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1047 regulator); 1048 if (ret < 0) { 1049 dev_err(&pdev->dev, 1050 "failed to enable GPIO control over %s: %d\n", 1051 regulator->desc->name, ret); 1052 goto out; 1053 } 1054 } 1055 } 1056 1057 out: 1058 kfree(rdata); 1059 1060 return ret; 1061 } 1062 1063 static const struct platform_device_id s2mps11_pmic_id[] = { 1064 { "s2mps11-pmic", S2MPS11X}, 1065 { "s2mps13-pmic", S2MPS13X}, 1066 { "s2mps14-pmic", S2MPS14X}, 1067 { "s2mpu02-pmic", S2MPU02}, 1068 { }, 1069 }; 1070 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1071 1072 static struct platform_driver s2mps11_pmic_driver = { 1073 .driver = { 1074 .name = "s2mps11-pmic", 1075 }, 1076 .probe = s2mps11_pmic_probe, 1077 .id_table = s2mps11_pmic_id, 1078 }; 1079 1080 static int __init s2mps11_pmic_init(void) 1081 { 1082 return platform_driver_register(&s2mps11_pmic_driver); 1083 } 1084 subsys_initcall(s2mps11_pmic_init); 1085 1086 static void __exit s2mps11_pmic_exit(void) 1087 { 1088 platform_driver_unregister(&s2mps11_pmic_driver); 1089 } 1090 module_exit(s2mps11_pmic_exit); 1091 1092 /* Module information */ 1093 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1094 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver"); 1095 MODULE_LICENSE("GPL"); 1096