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 39 struct 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 60 static 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 79 static 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 } 119 120 static 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); 232 233 ramp_disable: 234 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 235 1 << enable_shift, 0); 236 } 237 238 static 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 }; 248 249 static 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_buck6_10(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 static const struct regulator_desc s2mps11_regulators[] = { 325 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 326 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 327 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 328 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 329 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 330 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 331 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 332 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 333 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 334 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 335 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 336 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 337 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 338 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 339 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 340 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 341 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 342 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 343 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 345 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 346 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 347 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 348 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 352 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 353 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 354 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(35, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 363 regulator_desc_s2mps11_buck1_4(1), 364 regulator_desc_s2mps11_buck1_4(2), 365 regulator_desc_s2mps11_buck1_4(3), 366 regulator_desc_s2mps11_buck1_4(4), 367 regulator_desc_s2mps11_buck5, 368 regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV), 369 regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV), 370 regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV), 371 regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV), 372 regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), 373 }; 374 375 static struct regulator_ops s2mps14_reg_ops; 376 377 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 378 .name = "LDO"#num, \ 379 .id = S2MPS13_LDO##num, \ 380 .ops = &s2mps14_reg_ops, \ 381 .type = REGULATOR_VOLTAGE, \ 382 .owner = THIS_MODULE, \ 383 .min_uV = min, \ 384 .uV_step = step, \ 385 .linear_min_sel = min_sel, \ 386 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 387 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 388 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 389 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 390 .enable_mask = S2MPS14_ENABLE_MASK \ 391 } 392 393 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 394 .name = "BUCK"#num, \ 395 .id = S2MPS13_BUCK##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_BUCK_N_VOLTAGES, \ 403 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 404 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 405 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 406 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 407 .enable_mask = S2MPS14_ENABLE_MASK \ 408 } 409 410 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 411 .name = "BUCK"#num, \ 412 .id = S2MPS13_BUCK##num, \ 413 .ops = &s2mps14_reg_ops, \ 414 .type = REGULATOR_VOLTAGE, \ 415 .owner = THIS_MODULE, \ 416 .min_uV = min, \ 417 .uV_step = step, \ 418 .linear_min_sel = min_sel, \ 419 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 420 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 421 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 422 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 423 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 424 .enable_mask = S2MPS14_ENABLE_MASK \ 425 } 426 427 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 428 .name = "BUCK"#num, \ 429 .id = S2MPS13_BUCK##num, \ 430 .ops = &s2mps14_reg_ops, \ 431 .type = REGULATOR_VOLTAGE, \ 432 .owner = THIS_MODULE, \ 433 .min_uV = min, \ 434 .uV_step = step, \ 435 .linear_min_sel = min_sel, \ 436 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 437 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 438 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 439 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 440 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 441 .enable_mask = S2MPS14_ENABLE_MASK \ 442 } 443 444 static const struct regulator_desc s2mps13_regulators[] = { 445 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 446 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 447 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 448 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 449 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 450 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 451 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 452 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 453 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 454 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 455 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 456 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 457 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 458 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 459 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 460 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 461 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 462 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 463 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 464 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 465 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 466 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 467 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 468 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 469 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 470 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 471 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 472 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 473 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 474 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 475 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 476 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 477 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 478 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 479 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 480 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 481 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 482 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 483 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 484 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 485 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 486 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 487 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 488 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 489 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 490 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 491 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 492 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 493 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 494 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 495 }; 496 497 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 498 { 499 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 500 unsigned int val; 501 502 switch (s2mps11->dev_type) { 503 case S2MPS13X: 504 case S2MPS14X: 505 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 506 val = S2MPS14_ENABLE_SUSPEND; 507 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 508 val = S2MPS14_ENABLE_EXT_CONTROL; 509 else 510 val = rdev->desc->enable_mask; 511 break; 512 case S2MPU02: 513 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 514 val = S2MPU02_ENABLE_SUSPEND; 515 else 516 val = rdev->desc->enable_mask; 517 break; 518 default: 519 return -EINVAL; 520 } 521 522 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 523 rdev->desc->enable_mask, val); 524 } 525 526 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 527 { 528 int ret; 529 unsigned int val, state; 530 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 531 int rdev_id = rdev_get_id(rdev); 532 533 /* Below LDO should be always on or does not support suspend mode. */ 534 switch (s2mps11->dev_type) { 535 case S2MPS13X: 536 case S2MPS14X: 537 switch (rdev_id) { 538 case S2MPS14_LDO3: 539 return 0; 540 default: 541 state = S2MPS14_ENABLE_SUSPEND; 542 break; 543 } 544 break; 545 case S2MPU02: 546 switch (rdev_id) { 547 case S2MPU02_LDO13: 548 case S2MPU02_LDO14: 549 case S2MPU02_LDO15: 550 case S2MPU02_LDO17: 551 case S2MPU02_BUCK7: 552 state = S2MPU02_DISABLE_SUSPEND; 553 break; 554 default: 555 state = S2MPU02_ENABLE_SUSPEND; 556 break; 557 } 558 break; 559 default: 560 return -EINVAL; 561 } 562 563 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 564 if (ret < 0) 565 return ret; 566 567 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 568 /* 569 * Don't enable suspend mode if regulator is already disabled because 570 * this would effectively for a short time turn on the regulator after 571 * resuming. 572 * However we still want to toggle the suspend_state bit for regulator 573 * in case if it got enabled before suspending the system. 574 */ 575 if (!(val & rdev->desc->enable_mask)) 576 return 0; 577 578 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 579 rdev->desc->enable_mask, state); 580 } 581 582 static struct regulator_ops s2mps14_reg_ops = { 583 .list_voltage = regulator_list_voltage_linear, 584 .map_voltage = regulator_map_voltage_linear, 585 .is_enabled = regulator_is_enabled_regmap, 586 .enable = s2mps14_regulator_enable, 587 .disable = regulator_disable_regmap, 588 .get_voltage_sel = regulator_get_voltage_sel_regmap, 589 .set_voltage_sel = regulator_set_voltage_sel_regmap, 590 .set_voltage_time_sel = regulator_set_voltage_time_sel, 591 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 592 }; 593 594 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 595 .name = "LDO"#num, \ 596 .id = S2MPS14_LDO##num, \ 597 .ops = &s2mps14_reg_ops, \ 598 .type = REGULATOR_VOLTAGE, \ 599 .owner = THIS_MODULE, \ 600 .min_uV = min, \ 601 .uV_step = step, \ 602 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 603 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 604 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 605 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 606 .enable_mask = S2MPS14_ENABLE_MASK \ 607 } 608 609 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 610 .name = "BUCK"#num, \ 611 .id = S2MPS14_BUCK##num, \ 612 .ops = &s2mps14_reg_ops, \ 613 .type = REGULATOR_VOLTAGE, \ 614 .owner = THIS_MODULE, \ 615 .min_uV = min, \ 616 .uV_step = step, \ 617 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 618 .linear_min_sel = min_sel, \ 619 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 620 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 621 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 622 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 623 .enable_mask = S2MPS14_ENABLE_MASK \ 624 } 625 626 static const struct regulator_desc s2mps14_regulators[] = { 627 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 628 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 629 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 630 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 631 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 632 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 633 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 634 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 635 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 636 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 637 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 638 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 639 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 640 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 641 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 642 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 643 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 644 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 645 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 649 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 652 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 653 S2MPS14_BUCK1235_START_SEL), 654 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 655 S2MPS14_BUCK1235_START_SEL), 656 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 657 S2MPS14_BUCK1235_START_SEL), 658 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 659 S2MPS14_BUCK4_START_SEL), 660 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 661 S2MPS14_BUCK1235_START_SEL), 662 }; 663 664 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 665 struct regulator_dev *rdev) 666 { 667 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 668 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 669 } 670 671 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 672 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 673 { 674 int *gpio = s2mps11->ext_control_gpio; 675 unsigned int i; 676 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 677 S2MPS14_LDO12 }; 678 679 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 680 unsigned int reg = valid_regulators[i]; 681 682 if (!rdata[reg].init_data || !rdata[reg].of_node) 683 continue; 684 685 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 686 "samsung,ext-control-gpios", 0); 687 if (gpio_is_valid(gpio[reg])) 688 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 689 gpio[reg], reg, rdata[reg].name); 690 } 691 } 692 693 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 694 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 695 { 696 struct device_node *reg_np; 697 698 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 699 if (!reg_np) { 700 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 701 return -EINVAL; 702 } 703 704 of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num); 705 if (s2mps11->dev_type == S2MPS14X) 706 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 707 708 of_node_put(reg_np); 709 710 return 0; 711 } 712 713 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 714 { 715 unsigned int ramp_val, ramp_shift, ramp_reg; 716 717 switch (rdev_get_id(rdev)) { 718 case S2MPU02_BUCK1: 719 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 720 break; 721 case S2MPU02_BUCK2: 722 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 723 break; 724 case S2MPU02_BUCK3: 725 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 726 break; 727 case S2MPU02_BUCK4: 728 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 729 break; 730 default: 731 return 0; 732 } 733 ramp_reg = S2MPU02_REG_RAMP1; 734 ramp_val = get_ramp_delay(ramp_delay); 735 736 return regmap_update_bits(rdev->regmap, ramp_reg, 737 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 738 ramp_val << ramp_shift); 739 } 740 741 static struct regulator_ops s2mpu02_ldo_ops = { 742 .list_voltage = regulator_list_voltage_linear, 743 .map_voltage = regulator_map_voltage_linear, 744 .is_enabled = regulator_is_enabled_regmap, 745 .enable = s2mps14_regulator_enable, 746 .disable = regulator_disable_regmap, 747 .get_voltage_sel = regulator_get_voltage_sel_regmap, 748 .set_voltage_sel = regulator_set_voltage_sel_regmap, 749 .set_voltage_time_sel = regulator_set_voltage_time_sel, 750 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 751 }; 752 753 static struct regulator_ops s2mpu02_buck_ops = { 754 .list_voltage = regulator_list_voltage_linear, 755 .map_voltage = regulator_map_voltage_linear, 756 .is_enabled = regulator_is_enabled_regmap, 757 .enable = s2mps14_regulator_enable, 758 .disable = regulator_disable_regmap, 759 .get_voltage_sel = regulator_get_voltage_sel_regmap, 760 .set_voltage_sel = regulator_set_voltage_sel_regmap, 761 .set_voltage_time_sel = regulator_set_voltage_time_sel, 762 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 763 .set_ramp_delay = s2mpu02_set_ramp_delay, 764 }; 765 766 #define regulator_desc_s2mpu02_ldo1(num) { \ 767 .name = "LDO"#num, \ 768 .id = S2MPU02_LDO##num, \ 769 .ops = &s2mpu02_ldo_ops, \ 770 .type = REGULATOR_VOLTAGE, \ 771 .owner = THIS_MODULE, \ 772 .min_uV = S2MPU02_LDO_MIN_900MV, \ 773 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 774 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 775 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 776 .vsel_reg = S2MPU02_REG_L1CTRL, \ 777 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 778 .enable_reg = S2MPU02_REG_L1CTRL, \ 779 .enable_mask = S2MPU02_ENABLE_MASK \ 780 } 781 #define regulator_desc_s2mpu02_ldo2(num) { \ 782 .name = "LDO"#num, \ 783 .id = S2MPU02_LDO##num, \ 784 .ops = &s2mpu02_ldo_ops, \ 785 .type = REGULATOR_VOLTAGE, \ 786 .owner = THIS_MODULE, \ 787 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 788 .uV_step = S2MPU02_LDO_STEP_25MV, \ 789 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 790 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 791 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 792 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 793 .enable_reg = S2MPU02_REG_L2CTRL1, \ 794 .enable_mask = S2MPU02_ENABLE_MASK \ 795 } 796 #define regulator_desc_s2mpu02_ldo3(num) { \ 797 .name = "LDO"#num, \ 798 .id = S2MPU02_LDO##num, \ 799 .ops = &s2mpu02_ldo_ops, \ 800 .type = REGULATOR_VOLTAGE, \ 801 .owner = THIS_MODULE, \ 802 .min_uV = S2MPU02_LDO_MIN_900MV, \ 803 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 804 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 805 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 806 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 807 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 808 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 809 .enable_mask = S2MPU02_ENABLE_MASK \ 810 } 811 #define regulator_desc_s2mpu02_ldo4(num) { \ 812 .name = "LDO"#num, \ 813 .id = S2MPU02_LDO##num, \ 814 .ops = &s2mpu02_ldo_ops, \ 815 .type = REGULATOR_VOLTAGE, \ 816 .owner = THIS_MODULE, \ 817 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 818 .uV_step = S2MPU02_LDO_STEP_25MV, \ 819 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 820 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 821 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 822 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 823 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 824 .enable_mask = S2MPU02_ENABLE_MASK \ 825 } 826 #define regulator_desc_s2mpu02_ldo5(num) { \ 827 .name = "LDO"#num, \ 828 .id = S2MPU02_LDO##num, \ 829 .ops = &s2mpu02_ldo_ops, \ 830 .type = REGULATOR_VOLTAGE, \ 831 .owner = THIS_MODULE, \ 832 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 833 .uV_step = S2MPU02_LDO_STEP_50MV, \ 834 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 835 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 836 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 837 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 838 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 839 .enable_mask = S2MPU02_ENABLE_MASK \ 840 } 841 842 #define regulator_desc_s2mpu02_buck1234(num) { \ 843 .name = "BUCK"#num, \ 844 .id = S2MPU02_BUCK##num, \ 845 .ops = &s2mpu02_buck_ops, \ 846 .type = REGULATOR_VOLTAGE, \ 847 .owner = THIS_MODULE, \ 848 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 849 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 850 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 851 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 852 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 853 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 854 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 855 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 856 .enable_mask = S2MPU02_ENABLE_MASK \ 857 } 858 #define regulator_desc_s2mpu02_buck5(num) { \ 859 .name = "BUCK"#num, \ 860 .id = S2MPU02_BUCK##num, \ 861 .ops = &s2mpu02_ldo_ops, \ 862 .type = REGULATOR_VOLTAGE, \ 863 .owner = THIS_MODULE, \ 864 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 865 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 866 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 867 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 868 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 869 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 870 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 871 .enable_reg = S2MPU02_REG_B5CTRL1, \ 872 .enable_mask = S2MPU02_ENABLE_MASK \ 873 } 874 #define regulator_desc_s2mpu02_buck6(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_BUCK6_MIN_1700MV, \ 881 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 882 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 883 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 884 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 885 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 886 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 887 .enable_reg = S2MPU02_REG_B6CTRL1, \ 888 .enable_mask = S2MPU02_ENABLE_MASK \ 889 } 890 #define regulator_desc_s2mpu02_buck7(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_BUCK7_MIN_900MV, \ 897 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 898 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 899 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 900 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 901 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 902 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 903 .enable_reg = S2MPU02_REG_B7CTRL1, \ 904 .enable_mask = S2MPU02_ENABLE_MASK \ 905 } 906 907 static const struct regulator_desc s2mpu02_regulators[] = { 908 regulator_desc_s2mpu02_ldo1(1), 909 regulator_desc_s2mpu02_ldo2(2), 910 regulator_desc_s2mpu02_ldo4(3), 911 regulator_desc_s2mpu02_ldo5(4), 912 regulator_desc_s2mpu02_ldo4(5), 913 regulator_desc_s2mpu02_ldo3(6), 914 regulator_desc_s2mpu02_ldo3(7), 915 regulator_desc_s2mpu02_ldo4(8), 916 regulator_desc_s2mpu02_ldo5(9), 917 regulator_desc_s2mpu02_ldo3(10), 918 regulator_desc_s2mpu02_ldo4(11), 919 regulator_desc_s2mpu02_ldo5(12), 920 regulator_desc_s2mpu02_ldo5(13), 921 regulator_desc_s2mpu02_ldo5(14), 922 regulator_desc_s2mpu02_ldo5(15), 923 regulator_desc_s2mpu02_ldo5(16), 924 regulator_desc_s2mpu02_ldo4(17), 925 regulator_desc_s2mpu02_ldo5(18), 926 regulator_desc_s2mpu02_ldo3(19), 927 regulator_desc_s2mpu02_ldo4(20), 928 regulator_desc_s2mpu02_ldo5(21), 929 regulator_desc_s2mpu02_ldo5(22), 930 regulator_desc_s2mpu02_ldo5(23), 931 regulator_desc_s2mpu02_ldo4(24), 932 regulator_desc_s2mpu02_ldo5(25), 933 regulator_desc_s2mpu02_ldo4(26), 934 regulator_desc_s2mpu02_ldo5(27), 935 regulator_desc_s2mpu02_ldo5(28), 936 regulator_desc_s2mpu02_buck1234(1), 937 regulator_desc_s2mpu02_buck1234(2), 938 regulator_desc_s2mpu02_buck1234(3), 939 regulator_desc_s2mpu02_buck1234(4), 940 regulator_desc_s2mpu02_buck5(5), 941 regulator_desc_s2mpu02_buck6(6), 942 regulator_desc_s2mpu02_buck7(7), 943 }; 944 945 static int s2mps11_pmic_probe(struct platform_device *pdev) 946 { 947 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 948 struct sec_platform_data *pdata = NULL; 949 struct of_regulator_match *rdata = NULL; 950 struct regulator_config config = { }; 951 struct s2mps11_info *s2mps11; 952 int i, ret = 0; 953 const struct regulator_desc *regulators; 954 955 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 956 GFP_KERNEL); 957 if (!s2mps11) 958 return -ENOMEM; 959 960 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 961 switch (s2mps11->dev_type) { 962 case S2MPS11X: 963 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); 964 regulators = s2mps11_regulators; 965 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 966 break; 967 case S2MPS13X: 968 s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); 969 regulators = s2mps13_regulators; 970 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 971 break; 972 case S2MPS14X: 973 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); 974 regulators = s2mps14_regulators; 975 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 976 break; 977 case S2MPU02: 978 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators); 979 regulators = s2mpu02_regulators; 980 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 981 break; 982 default: 983 dev_err(&pdev->dev, "Invalid device type: %u\n", 984 s2mps11->dev_type); 985 return -EINVAL; 986 } 987 988 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, 989 sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num, 990 GFP_KERNEL); 991 if (!s2mps11->ext_control_gpio) 992 return -ENOMEM; 993 /* 994 * 0 is a valid GPIO so initialize all GPIO-s to negative value 995 * to indicate that external control won't be used for this regulator. 996 */ 997 for (i = 0; i < s2mps11->rdev_num; i++) 998 s2mps11->ext_control_gpio[i] = -EINVAL; 999 1000 if (!iodev->dev->of_node) { 1001 if (iodev->pdata) { 1002 pdata = iodev->pdata; 1003 goto common_reg; 1004 } else { 1005 dev_err(pdev->dev.parent, 1006 "Platform data or DT node not supplied\n"); 1007 return -ENODEV; 1008 } 1009 } 1010 1011 rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL); 1012 if (!rdata) 1013 return -ENOMEM; 1014 1015 for (i = 0; i < s2mps11->rdev_num; i++) 1016 rdata[i].name = regulators[i].name; 1017 1018 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11); 1019 if (ret) 1020 goto out; 1021 1022 common_reg: 1023 platform_set_drvdata(pdev, s2mps11); 1024 1025 config.dev = &pdev->dev; 1026 config.regmap = iodev->regmap_pmic; 1027 config.driver_data = s2mps11; 1028 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1029 config.ena_gpio_initialized = true; 1030 for (i = 0; i < s2mps11->rdev_num; i++) { 1031 struct regulator_dev *regulator; 1032 1033 if (pdata) { 1034 config.init_data = pdata->regulators[i].initdata; 1035 config.of_node = pdata->regulators[i].reg_node; 1036 } else { 1037 config.init_data = rdata[i].init_data; 1038 config.of_node = rdata[i].of_node; 1039 } 1040 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1041 1042 regulator = devm_regulator_register(&pdev->dev, 1043 ®ulators[i], &config); 1044 if (IS_ERR(regulator)) { 1045 ret = PTR_ERR(regulator); 1046 dev_err(&pdev->dev, "regulator init failed for %d\n", 1047 i); 1048 goto out; 1049 } 1050 1051 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1052 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1053 regulator); 1054 if (ret < 0) { 1055 dev_err(&pdev->dev, 1056 "failed to enable GPIO control over %s: %d\n", 1057 regulator->desc->name, ret); 1058 goto out; 1059 } 1060 } 1061 } 1062 1063 out: 1064 kfree(rdata); 1065 1066 return ret; 1067 } 1068 1069 static const struct platform_device_id s2mps11_pmic_id[] = { 1070 { "s2mps11-pmic", S2MPS11X}, 1071 { "s2mps13-pmic", S2MPS13X}, 1072 { "s2mps14-pmic", S2MPS14X}, 1073 { "s2mpu02-pmic", S2MPU02}, 1074 { }, 1075 }; 1076 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1077 1078 static struct platform_driver s2mps11_pmic_driver = { 1079 .driver = { 1080 .name = "s2mps11-pmic", 1081 }, 1082 .probe = s2mps11_pmic_probe, 1083 .id_table = s2mps11_pmic_id, 1084 }; 1085 1086 static int __init s2mps11_pmic_init(void) 1087 { 1088 return platform_driver_register(&s2mps11_pmic_driver); 1089 } 1090 subsys_initcall(s2mps11_pmic_init); 1091 1092 static void __exit s2mps11_pmic_exit(void) 1093 { 1094 platform_driver_unregister(&s2mps11_pmic_driver); 1095 } 1096 module_exit(s2mps11_pmic_exit); 1097 1098 /* Module information */ 1099 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1100 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver"); 1101 MODULE_LICENSE("GPL"); 1102