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 unsigned int rdev_num; 42 int ramp_delay2; 43 int ramp_delay34; 44 int ramp_delay5; 45 int ramp_delay16; 46 int ramp_delay7810; 47 int ramp_delay9; 48 49 enum sec_device_type dev_type; 50 51 /* 52 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether 53 * the suspend mode was enabled. 54 */ 55 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX); 56 57 /* Array of size rdev_num with GPIO-s for external sleep control */ 58 int *ext_control_gpio; 59 }; 60 61 static int get_ramp_delay(int ramp_delay) 62 { 63 unsigned char cnt = 0; 64 65 ramp_delay /= 6250; 66 67 while (true) { 68 ramp_delay = ramp_delay >> 1; 69 if (ramp_delay == 0) 70 break; 71 cnt++; 72 } 73 74 if (cnt > 3) 75 cnt = 3; 76 77 return cnt; 78 } 79 80 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 81 unsigned int old_selector, 82 unsigned int new_selector) 83 { 84 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 85 unsigned int ramp_delay = 0; 86 int old_volt, new_volt; 87 88 switch (rdev_get_id(rdev)) { 89 case S2MPS11_BUCK2: 90 ramp_delay = s2mps11->ramp_delay2; 91 break; 92 case S2MPS11_BUCK3: 93 case S2MPS11_BUCK4: 94 ramp_delay = s2mps11->ramp_delay34; 95 break; 96 case S2MPS11_BUCK5: 97 ramp_delay = s2mps11->ramp_delay5; 98 break; 99 case S2MPS11_BUCK6: 100 case S2MPS11_BUCK1: 101 ramp_delay = s2mps11->ramp_delay16; 102 break; 103 case S2MPS11_BUCK7: 104 case S2MPS11_BUCK8: 105 case S2MPS11_BUCK10: 106 ramp_delay = s2mps11->ramp_delay7810; 107 break; 108 case S2MPS11_BUCK9: 109 ramp_delay = s2mps11->ramp_delay9; 110 } 111 112 if (ramp_delay == 0) 113 ramp_delay = rdev->desc->ramp_delay; 114 115 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 116 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 117 118 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 119 } 120 121 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 122 { 123 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 124 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 125 unsigned int ramp_enable = 1, enable_shift = 0; 126 int ret; 127 128 switch (rdev_get_id(rdev)) { 129 case S2MPS11_BUCK1: 130 if (ramp_delay > s2mps11->ramp_delay16) 131 s2mps11->ramp_delay16 = ramp_delay; 132 else 133 ramp_delay = s2mps11->ramp_delay16; 134 135 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 136 break; 137 case S2MPS11_BUCK2: 138 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 139 if (!ramp_delay) { 140 ramp_enable = 0; 141 break; 142 } 143 144 s2mps11->ramp_delay2 = ramp_delay; 145 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 146 ramp_reg = S2MPS11_REG_RAMP; 147 break; 148 case S2MPS11_BUCK3: 149 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 150 if (!ramp_delay) { 151 ramp_enable = 0; 152 break; 153 } 154 155 if (ramp_delay > s2mps11->ramp_delay34) 156 s2mps11->ramp_delay34 = ramp_delay; 157 else 158 ramp_delay = s2mps11->ramp_delay34; 159 160 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 161 ramp_reg = S2MPS11_REG_RAMP; 162 break; 163 case S2MPS11_BUCK4: 164 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 165 if (!ramp_delay) { 166 ramp_enable = 0; 167 break; 168 } 169 170 if (ramp_delay > s2mps11->ramp_delay34) 171 s2mps11->ramp_delay34 = ramp_delay; 172 else 173 ramp_delay = s2mps11->ramp_delay34; 174 175 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 176 ramp_reg = S2MPS11_REG_RAMP; 177 break; 178 case S2MPS11_BUCK5: 179 s2mps11->ramp_delay5 = ramp_delay; 180 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 181 break; 182 case S2MPS11_BUCK6: 183 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 184 if (!ramp_delay) { 185 ramp_enable = 0; 186 break; 187 } 188 189 if (ramp_delay > s2mps11->ramp_delay16) 190 s2mps11->ramp_delay16 = ramp_delay; 191 else 192 ramp_delay = s2mps11->ramp_delay16; 193 194 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 195 break; 196 case S2MPS11_BUCK7: 197 case S2MPS11_BUCK8: 198 case S2MPS11_BUCK10: 199 if (ramp_delay > s2mps11->ramp_delay7810) 200 s2mps11->ramp_delay7810 = ramp_delay; 201 else 202 ramp_delay = s2mps11->ramp_delay7810; 203 204 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 205 break; 206 case S2MPS11_BUCK9: 207 s2mps11->ramp_delay9 = ramp_delay; 208 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 209 break; 210 default: 211 return 0; 212 } 213 214 if (!ramp_enable) 215 goto ramp_disable; 216 217 /* Ramp delay can be enabled/disabled only for buck[2346] */ 218 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 219 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 220 rdev_get_id(rdev) == S2MPS11_BUCK6) { 221 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 222 1 << enable_shift, 1 << enable_shift); 223 if (ret) { 224 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 225 return ret; 226 } 227 } 228 229 ramp_val = get_ramp_delay(ramp_delay); 230 231 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 232 ramp_val << ramp_shift); 233 234 ramp_disable: 235 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 236 1 << enable_shift, 0); 237 } 238 239 static struct regulator_ops s2mps11_ldo_ops = { 240 .list_voltage = regulator_list_voltage_linear, 241 .map_voltage = regulator_map_voltage_linear, 242 .is_enabled = regulator_is_enabled_regmap, 243 .enable = regulator_enable_regmap, 244 .disable = regulator_disable_regmap, 245 .get_voltage_sel = regulator_get_voltage_sel_regmap, 246 .set_voltage_sel = regulator_set_voltage_sel_regmap, 247 .set_voltage_time_sel = regulator_set_voltage_time_sel, 248 }; 249 250 static struct regulator_ops s2mps11_buck_ops = { 251 .list_voltage = regulator_list_voltage_linear, 252 .map_voltage = regulator_map_voltage_linear, 253 .is_enabled = regulator_is_enabled_regmap, 254 .enable = regulator_enable_regmap, 255 .disable = regulator_disable_regmap, 256 .get_voltage_sel = regulator_get_voltage_sel_regmap, 257 .set_voltage_sel = regulator_set_voltage_sel_regmap, 258 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel, 259 .set_ramp_delay = s2mps11_set_ramp_delay, 260 }; 261 262 #define regulator_desc_s2mps11_ldo(num, step) { \ 263 .name = "LDO"#num, \ 264 .id = S2MPS11_LDO##num, \ 265 .ops = &s2mps11_ldo_ops, \ 266 .type = REGULATOR_VOLTAGE, \ 267 .owner = THIS_MODULE, \ 268 .min_uV = MIN_800_MV, \ 269 .uV_step = step, \ 270 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 271 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 272 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 273 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 274 .enable_mask = S2MPS11_ENABLE_MASK \ 275 } 276 277 #define regulator_desc_s2mps11_buck1_4(num) { \ 278 .name = "BUCK"#num, \ 279 .id = S2MPS11_BUCK##num, \ 280 .ops = &s2mps11_buck_ops, \ 281 .type = REGULATOR_VOLTAGE, \ 282 .owner = THIS_MODULE, \ 283 .min_uV = MIN_600_MV, \ 284 .uV_step = STEP_6_25_MV, \ 285 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 286 .ramp_delay = S2MPS11_RAMP_DELAY, \ 287 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 288 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 289 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 290 .enable_mask = S2MPS11_ENABLE_MASK \ 291 } 292 293 #define regulator_desc_s2mps11_buck5 { \ 294 .name = "BUCK5", \ 295 .id = S2MPS11_BUCK5, \ 296 .ops = &s2mps11_buck_ops, \ 297 .type = REGULATOR_VOLTAGE, \ 298 .owner = THIS_MODULE, \ 299 .min_uV = MIN_600_MV, \ 300 .uV_step = STEP_6_25_MV, \ 301 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 302 .ramp_delay = S2MPS11_RAMP_DELAY, \ 303 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 304 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 305 .enable_reg = S2MPS11_REG_B5CTRL1, \ 306 .enable_mask = S2MPS11_ENABLE_MASK \ 307 } 308 309 #define regulator_desc_s2mps11_buck6_10(num, min, step) { \ 310 .name = "BUCK"#num, \ 311 .id = S2MPS11_BUCK##num, \ 312 .ops = &s2mps11_buck_ops, \ 313 .type = REGULATOR_VOLTAGE, \ 314 .owner = THIS_MODULE, \ 315 .min_uV = min, \ 316 .uV_step = step, \ 317 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 318 .ramp_delay = S2MPS11_RAMP_DELAY, \ 319 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 320 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 321 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 322 .enable_mask = S2MPS11_ENABLE_MASK \ 323 } 324 325 static const struct regulator_desc s2mps11_regulators[] = { 326 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 327 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 328 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 329 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 330 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 331 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 332 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 333 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 334 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 335 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 336 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 337 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 338 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 339 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 340 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 341 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 342 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 343 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 345 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 346 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 347 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 348 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 349 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 352 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 353 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 354 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(35, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 363 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 364 regulator_desc_s2mps11_buck1_4(1), 365 regulator_desc_s2mps11_buck1_4(2), 366 regulator_desc_s2mps11_buck1_4(3), 367 regulator_desc_s2mps11_buck1_4(4), 368 regulator_desc_s2mps11_buck5, 369 regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV), 370 regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV), 371 regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV), 372 regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV), 373 regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), 374 }; 375 376 static struct regulator_ops s2mps14_reg_ops; 377 378 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 379 .name = "LDO"#num, \ 380 .id = S2MPS13_LDO##num, \ 381 .ops = &s2mps14_reg_ops, \ 382 .type = REGULATOR_VOLTAGE, \ 383 .owner = THIS_MODULE, \ 384 .min_uV = min, \ 385 .uV_step = step, \ 386 .linear_min_sel = min_sel, \ 387 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 388 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 389 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 390 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 391 .enable_mask = S2MPS14_ENABLE_MASK \ 392 } 393 394 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 395 .name = "BUCK"#num, \ 396 .id = S2MPS13_BUCK##num, \ 397 .ops = &s2mps14_reg_ops, \ 398 .type = REGULATOR_VOLTAGE, \ 399 .owner = THIS_MODULE, \ 400 .min_uV = min, \ 401 .uV_step = step, \ 402 .linear_min_sel = min_sel, \ 403 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 404 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 405 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 406 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 407 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 408 .enable_mask = S2MPS14_ENABLE_MASK \ 409 } 410 411 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 412 .name = "BUCK"#num, \ 413 .id = S2MPS13_BUCK##num, \ 414 .ops = &s2mps14_reg_ops, \ 415 .type = REGULATOR_VOLTAGE, \ 416 .owner = THIS_MODULE, \ 417 .min_uV = min, \ 418 .uV_step = step, \ 419 .linear_min_sel = min_sel, \ 420 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 421 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 422 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 423 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 424 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 425 .enable_mask = S2MPS14_ENABLE_MASK \ 426 } 427 428 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 429 .name = "BUCK"#num, \ 430 .id = S2MPS13_BUCK##num, \ 431 .ops = &s2mps14_reg_ops, \ 432 .type = REGULATOR_VOLTAGE, \ 433 .owner = THIS_MODULE, \ 434 .min_uV = min, \ 435 .uV_step = step, \ 436 .linear_min_sel = min_sel, \ 437 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 438 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 439 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 440 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 441 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 442 .enable_mask = S2MPS14_ENABLE_MASK \ 443 } 444 445 static const struct regulator_desc s2mps13_regulators[] = { 446 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 447 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 448 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 449 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 450 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 451 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 452 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 453 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 454 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 455 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 456 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 457 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 458 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 459 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 460 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 461 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 462 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 463 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 464 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 465 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 466 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 467 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 468 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 469 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 470 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 471 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 472 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 473 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 474 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 475 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 476 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 477 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 478 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 479 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 480 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 482 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 483 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 484 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 485 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 486 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 487 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 488 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 489 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 490 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 491 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 492 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 493 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 494 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 495 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 496 }; 497 498 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 499 { 500 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 501 unsigned int val; 502 503 switch (s2mps11->dev_type) { 504 case S2MPS13X: 505 case S2MPS14X: 506 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 507 val = S2MPS14_ENABLE_SUSPEND; 508 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 509 val = S2MPS14_ENABLE_EXT_CONTROL; 510 else 511 val = rdev->desc->enable_mask; 512 break; 513 case S2MPU02: 514 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 515 val = S2MPU02_ENABLE_SUSPEND; 516 else 517 val = rdev->desc->enable_mask; 518 break; 519 default: 520 return -EINVAL; 521 } 522 523 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 524 rdev->desc->enable_mask, val); 525 } 526 527 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 528 { 529 int ret; 530 unsigned int val, state; 531 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 532 int rdev_id = rdev_get_id(rdev); 533 534 /* Below LDO should be always on or does not support suspend mode. */ 535 switch (s2mps11->dev_type) { 536 case S2MPS13X: 537 case S2MPS14X: 538 switch (rdev_id) { 539 case S2MPS14_LDO3: 540 return 0; 541 default: 542 state = S2MPS14_ENABLE_SUSPEND; 543 break; 544 } 545 break; 546 case S2MPU02: 547 switch (rdev_id) { 548 case S2MPU02_LDO13: 549 case S2MPU02_LDO14: 550 case S2MPU02_LDO15: 551 case S2MPU02_LDO17: 552 case S2MPU02_BUCK7: 553 state = S2MPU02_DISABLE_SUSPEND; 554 break; 555 default: 556 state = S2MPU02_ENABLE_SUSPEND; 557 break; 558 } 559 break; 560 default: 561 return -EINVAL; 562 } 563 564 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 565 if (ret < 0) 566 return ret; 567 568 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 569 /* 570 * Don't enable suspend mode if regulator is already disabled because 571 * this would effectively for a short time turn on the regulator after 572 * resuming. 573 * However we still want to toggle the suspend_state bit for regulator 574 * in case if it got enabled before suspending the system. 575 */ 576 if (!(val & rdev->desc->enable_mask)) 577 return 0; 578 579 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 580 rdev->desc->enable_mask, state); 581 } 582 583 static struct regulator_ops s2mps14_reg_ops = { 584 .list_voltage = regulator_list_voltage_linear, 585 .map_voltage = regulator_map_voltage_linear, 586 .is_enabled = regulator_is_enabled_regmap, 587 .enable = s2mps14_regulator_enable, 588 .disable = regulator_disable_regmap, 589 .get_voltage_sel = regulator_get_voltage_sel_regmap, 590 .set_voltage_sel = regulator_set_voltage_sel_regmap, 591 .set_voltage_time_sel = regulator_set_voltage_time_sel, 592 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 593 }; 594 595 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 596 .name = "LDO"#num, \ 597 .id = S2MPS14_LDO##num, \ 598 .ops = &s2mps14_reg_ops, \ 599 .type = REGULATOR_VOLTAGE, \ 600 .owner = THIS_MODULE, \ 601 .min_uV = min, \ 602 .uV_step = step, \ 603 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 604 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 605 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 606 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 607 .enable_mask = S2MPS14_ENABLE_MASK \ 608 } 609 610 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 611 .name = "BUCK"#num, \ 612 .id = S2MPS14_BUCK##num, \ 613 .ops = &s2mps14_reg_ops, \ 614 .type = REGULATOR_VOLTAGE, \ 615 .owner = THIS_MODULE, \ 616 .min_uV = min, \ 617 .uV_step = step, \ 618 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 619 .linear_min_sel = min_sel, \ 620 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 621 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 622 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 623 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 624 .enable_mask = S2MPS14_ENABLE_MASK \ 625 } 626 627 static const struct regulator_desc s2mps14_regulators[] = { 628 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 629 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 630 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 631 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 632 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 633 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 634 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 635 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 636 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 637 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 638 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 639 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 640 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 641 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 642 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 643 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 644 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 645 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 649 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 650 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 652 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 653 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 654 S2MPS14_BUCK1235_START_SEL), 655 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 656 S2MPS14_BUCK1235_START_SEL), 657 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 658 S2MPS14_BUCK1235_START_SEL), 659 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 660 S2MPS14_BUCK4_START_SEL), 661 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 662 S2MPS14_BUCK1235_START_SEL), 663 }; 664 665 static struct regulator_ops s2mps15_reg_ldo_ops = { 666 .list_voltage = regulator_list_voltage_linear_range, 667 .map_voltage = regulator_map_voltage_linear_range, 668 .is_enabled = regulator_is_enabled_regmap, 669 .enable = regulator_enable_regmap, 670 .disable = regulator_disable_regmap, 671 .get_voltage_sel = regulator_get_voltage_sel_regmap, 672 .set_voltage_sel = regulator_set_voltage_sel_regmap, 673 }; 674 675 static struct regulator_ops s2mps15_reg_buck_ops = { 676 .list_voltage = regulator_list_voltage_linear_range, 677 .map_voltage = regulator_map_voltage_linear_range, 678 .is_enabled = regulator_is_enabled_regmap, 679 .enable = regulator_enable_regmap, 680 .disable = regulator_disable_regmap, 681 .get_voltage_sel = regulator_get_voltage_sel_regmap, 682 .set_voltage_sel = regulator_set_voltage_sel_regmap, 683 .set_voltage_time_sel = regulator_set_voltage_time_sel, 684 }; 685 686 #define regulator_desc_s2mps15_ldo(num, range) { \ 687 .name = "LDO"#num, \ 688 .id = S2MPS15_LDO##num, \ 689 .ops = &s2mps15_reg_ldo_ops, \ 690 .type = REGULATOR_VOLTAGE, \ 691 .owner = THIS_MODULE, \ 692 .linear_ranges = range, \ 693 .n_linear_ranges = ARRAY_SIZE(range), \ 694 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \ 695 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \ 696 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \ 697 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \ 698 .enable_mask = S2MPS15_ENABLE_MASK \ 699 } 700 701 #define regulator_desc_s2mps15_buck(num, range) { \ 702 .name = "BUCK"#num, \ 703 .id = S2MPS15_BUCK##num, \ 704 .ops = &s2mps15_reg_buck_ops, \ 705 .type = REGULATOR_VOLTAGE, \ 706 .owner = THIS_MODULE, \ 707 .linear_ranges = range, \ 708 .n_linear_ranges = ARRAY_SIZE(range), \ 709 .ramp_delay = 12500, \ 710 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \ 711 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \ 712 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \ 713 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \ 714 .enable_mask = S2MPS15_ENABLE_MASK \ 715 } 716 717 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ 718 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { 719 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), 720 }; 721 722 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ 723 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { 724 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), 725 }; 726 727 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ 728 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { 729 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), 730 }; 731 732 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ 733 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { 734 REGULATOR_LINEAR_RANGE(700000, 0xc, 0x18, 25000), 735 }; 736 737 /* voltage range for s2mps15 LDO 1 */ 738 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { 739 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), 740 }; 741 742 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ 743 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { 744 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xb0, 6250), 745 }; 746 747 /* voltage range for s2mps15 BUCK 8, 9 and 10 */ 748 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { 749 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0xc0, 12500), 750 }; 751 752 static const struct regulator_desc s2mps15_regulators[] = { 753 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5), 754 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2), 755 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1), 756 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3), 757 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1), 758 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2), 759 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4), 760 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4), 761 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4), 762 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4), 763 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3), 764 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3), 765 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3), 766 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2), 767 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1), 768 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1), 769 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2), 770 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1), 771 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2), 772 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1), 773 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2), 774 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3), 775 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1), 776 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2), 777 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2), 778 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3), 779 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1), 780 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1), 781 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1), 782 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1), 783 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1), 784 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1), 785 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1), 786 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1), 787 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2), 788 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2), 789 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2), 790 }; 791 792 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 793 struct regulator_dev *rdev) 794 { 795 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 796 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 797 } 798 799 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 800 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 801 { 802 int *gpio = s2mps11->ext_control_gpio; 803 unsigned int i; 804 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 805 S2MPS14_LDO12 }; 806 807 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 808 unsigned int reg = valid_regulators[i]; 809 810 if (!rdata[reg].init_data || !rdata[reg].of_node) 811 continue; 812 813 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 814 "samsung,ext-control-gpios", 0); 815 if (gpio_is_valid(gpio[reg])) 816 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 817 gpio[reg], reg, rdata[reg].name); 818 } 819 } 820 821 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 822 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 823 { 824 struct device_node *reg_np; 825 826 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 827 if (!reg_np) { 828 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 829 return -EINVAL; 830 } 831 832 of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num); 833 if (s2mps11->dev_type == S2MPS14X) 834 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 835 836 of_node_put(reg_np); 837 838 return 0; 839 } 840 841 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 842 { 843 unsigned int ramp_val, ramp_shift, ramp_reg; 844 845 switch (rdev_get_id(rdev)) { 846 case S2MPU02_BUCK1: 847 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 848 break; 849 case S2MPU02_BUCK2: 850 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 851 break; 852 case S2MPU02_BUCK3: 853 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 854 break; 855 case S2MPU02_BUCK4: 856 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 857 break; 858 default: 859 return 0; 860 } 861 ramp_reg = S2MPU02_REG_RAMP1; 862 ramp_val = get_ramp_delay(ramp_delay); 863 864 return regmap_update_bits(rdev->regmap, ramp_reg, 865 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 866 ramp_val << ramp_shift); 867 } 868 869 static struct regulator_ops s2mpu02_ldo_ops = { 870 .list_voltage = regulator_list_voltage_linear, 871 .map_voltage = regulator_map_voltage_linear, 872 .is_enabled = regulator_is_enabled_regmap, 873 .enable = s2mps14_regulator_enable, 874 .disable = regulator_disable_regmap, 875 .get_voltage_sel = regulator_get_voltage_sel_regmap, 876 .set_voltage_sel = regulator_set_voltage_sel_regmap, 877 .set_voltage_time_sel = regulator_set_voltage_time_sel, 878 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 879 }; 880 881 static struct regulator_ops s2mpu02_buck_ops = { 882 .list_voltage = regulator_list_voltage_linear, 883 .map_voltage = regulator_map_voltage_linear, 884 .is_enabled = regulator_is_enabled_regmap, 885 .enable = s2mps14_regulator_enable, 886 .disable = regulator_disable_regmap, 887 .get_voltage_sel = regulator_get_voltage_sel_regmap, 888 .set_voltage_sel = regulator_set_voltage_sel_regmap, 889 .set_voltage_time_sel = regulator_set_voltage_time_sel, 890 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 891 .set_ramp_delay = s2mpu02_set_ramp_delay, 892 }; 893 894 #define regulator_desc_s2mpu02_ldo1(num) { \ 895 .name = "LDO"#num, \ 896 .id = S2MPU02_LDO##num, \ 897 .ops = &s2mpu02_ldo_ops, \ 898 .type = REGULATOR_VOLTAGE, \ 899 .owner = THIS_MODULE, \ 900 .min_uV = S2MPU02_LDO_MIN_900MV, \ 901 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 902 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 903 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 904 .vsel_reg = S2MPU02_REG_L1CTRL, \ 905 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 906 .enable_reg = S2MPU02_REG_L1CTRL, \ 907 .enable_mask = S2MPU02_ENABLE_MASK \ 908 } 909 #define regulator_desc_s2mpu02_ldo2(num) { \ 910 .name = "LDO"#num, \ 911 .id = S2MPU02_LDO##num, \ 912 .ops = &s2mpu02_ldo_ops, \ 913 .type = REGULATOR_VOLTAGE, \ 914 .owner = THIS_MODULE, \ 915 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 916 .uV_step = S2MPU02_LDO_STEP_25MV, \ 917 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 918 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 919 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 920 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 921 .enable_reg = S2MPU02_REG_L2CTRL1, \ 922 .enable_mask = S2MPU02_ENABLE_MASK \ 923 } 924 #define regulator_desc_s2mpu02_ldo3(num) { \ 925 .name = "LDO"#num, \ 926 .id = S2MPU02_LDO##num, \ 927 .ops = &s2mpu02_ldo_ops, \ 928 .type = REGULATOR_VOLTAGE, \ 929 .owner = THIS_MODULE, \ 930 .min_uV = S2MPU02_LDO_MIN_900MV, \ 931 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 932 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 933 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 934 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 935 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 936 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 937 .enable_mask = S2MPU02_ENABLE_MASK \ 938 } 939 #define regulator_desc_s2mpu02_ldo4(num) { \ 940 .name = "LDO"#num, \ 941 .id = S2MPU02_LDO##num, \ 942 .ops = &s2mpu02_ldo_ops, \ 943 .type = REGULATOR_VOLTAGE, \ 944 .owner = THIS_MODULE, \ 945 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 946 .uV_step = S2MPU02_LDO_STEP_25MV, \ 947 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 948 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 949 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 950 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 951 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 952 .enable_mask = S2MPU02_ENABLE_MASK \ 953 } 954 #define regulator_desc_s2mpu02_ldo5(num) { \ 955 .name = "LDO"#num, \ 956 .id = S2MPU02_LDO##num, \ 957 .ops = &s2mpu02_ldo_ops, \ 958 .type = REGULATOR_VOLTAGE, \ 959 .owner = THIS_MODULE, \ 960 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 961 .uV_step = S2MPU02_LDO_STEP_50MV, \ 962 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 963 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 964 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 965 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 966 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 967 .enable_mask = S2MPU02_ENABLE_MASK \ 968 } 969 970 #define regulator_desc_s2mpu02_buck1234(num) { \ 971 .name = "BUCK"#num, \ 972 .id = S2MPU02_BUCK##num, \ 973 .ops = &s2mpu02_buck_ops, \ 974 .type = REGULATOR_VOLTAGE, \ 975 .owner = THIS_MODULE, \ 976 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 977 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 978 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 979 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 980 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 981 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 982 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 983 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 984 .enable_mask = S2MPU02_ENABLE_MASK \ 985 } 986 #define regulator_desc_s2mpu02_buck5(num) { \ 987 .name = "BUCK"#num, \ 988 .id = S2MPU02_BUCK##num, \ 989 .ops = &s2mpu02_ldo_ops, \ 990 .type = REGULATOR_VOLTAGE, \ 991 .owner = THIS_MODULE, \ 992 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 993 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 994 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 995 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 996 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 997 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 998 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 999 .enable_reg = S2MPU02_REG_B5CTRL1, \ 1000 .enable_mask = S2MPU02_ENABLE_MASK \ 1001 } 1002 #define regulator_desc_s2mpu02_buck6(num) { \ 1003 .name = "BUCK"#num, \ 1004 .id = S2MPU02_BUCK##num, \ 1005 .ops = &s2mpu02_ldo_ops, \ 1006 .type = REGULATOR_VOLTAGE, \ 1007 .owner = THIS_MODULE, \ 1008 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 1009 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 1010 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1011 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 1012 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1013 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 1014 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1015 .enable_reg = S2MPU02_REG_B6CTRL1, \ 1016 .enable_mask = S2MPU02_ENABLE_MASK \ 1017 } 1018 #define regulator_desc_s2mpu02_buck7(num) { \ 1019 .name = "BUCK"#num, \ 1020 .id = S2MPU02_BUCK##num, \ 1021 .ops = &s2mpu02_ldo_ops, \ 1022 .type = REGULATOR_VOLTAGE, \ 1023 .owner = THIS_MODULE, \ 1024 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 1025 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 1026 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1027 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 1028 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1029 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 1030 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1031 .enable_reg = S2MPU02_REG_B7CTRL1, \ 1032 .enable_mask = S2MPU02_ENABLE_MASK \ 1033 } 1034 1035 static const struct regulator_desc s2mpu02_regulators[] = { 1036 regulator_desc_s2mpu02_ldo1(1), 1037 regulator_desc_s2mpu02_ldo2(2), 1038 regulator_desc_s2mpu02_ldo4(3), 1039 regulator_desc_s2mpu02_ldo5(4), 1040 regulator_desc_s2mpu02_ldo4(5), 1041 regulator_desc_s2mpu02_ldo3(6), 1042 regulator_desc_s2mpu02_ldo3(7), 1043 regulator_desc_s2mpu02_ldo4(8), 1044 regulator_desc_s2mpu02_ldo5(9), 1045 regulator_desc_s2mpu02_ldo3(10), 1046 regulator_desc_s2mpu02_ldo4(11), 1047 regulator_desc_s2mpu02_ldo5(12), 1048 regulator_desc_s2mpu02_ldo5(13), 1049 regulator_desc_s2mpu02_ldo5(14), 1050 regulator_desc_s2mpu02_ldo5(15), 1051 regulator_desc_s2mpu02_ldo5(16), 1052 regulator_desc_s2mpu02_ldo4(17), 1053 regulator_desc_s2mpu02_ldo5(18), 1054 regulator_desc_s2mpu02_ldo3(19), 1055 regulator_desc_s2mpu02_ldo4(20), 1056 regulator_desc_s2mpu02_ldo5(21), 1057 regulator_desc_s2mpu02_ldo5(22), 1058 regulator_desc_s2mpu02_ldo5(23), 1059 regulator_desc_s2mpu02_ldo4(24), 1060 regulator_desc_s2mpu02_ldo5(25), 1061 regulator_desc_s2mpu02_ldo4(26), 1062 regulator_desc_s2mpu02_ldo5(27), 1063 regulator_desc_s2mpu02_ldo5(28), 1064 regulator_desc_s2mpu02_buck1234(1), 1065 regulator_desc_s2mpu02_buck1234(2), 1066 regulator_desc_s2mpu02_buck1234(3), 1067 regulator_desc_s2mpu02_buck1234(4), 1068 regulator_desc_s2mpu02_buck5(5), 1069 regulator_desc_s2mpu02_buck6(6), 1070 regulator_desc_s2mpu02_buck7(7), 1071 }; 1072 1073 static int s2mps11_pmic_probe(struct platform_device *pdev) 1074 { 1075 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 1076 struct sec_platform_data *pdata = NULL; 1077 struct of_regulator_match *rdata = NULL; 1078 struct regulator_config config = { }; 1079 struct s2mps11_info *s2mps11; 1080 int i, ret = 0; 1081 const struct regulator_desc *regulators; 1082 1083 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 1084 GFP_KERNEL); 1085 if (!s2mps11) 1086 return -ENOMEM; 1087 1088 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 1089 switch (s2mps11->dev_type) { 1090 case S2MPS11X: 1091 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); 1092 regulators = s2mps11_regulators; 1093 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 1094 break; 1095 case S2MPS13X: 1096 s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); 1097 regulators = s2mps13_regulators; 1098 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 1099 break; 1100 case S2MPS14X: 1101 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); 1102 regulators = s2mps14_regulators; 1103 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 1104 break; 1105 case S2MPS15X: 1106 s2mps11->rdev_num = ARRAY_SIZE(s2mps15_regulators); 1107 regulators = s2mps15_regulators; 1108 break; 1109 case S2MPU02: 1110 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators); 1111 regulators = s2mpu02_regulators; 1112 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); 1113 break; 1114 default: 1115 dev_err(&pdev->dev, "Invalid device type: %u\n", 1116 s2mps11->dev_type); 1117 return -EINVAL; 1118 } 1119 1120 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, 1121 sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num, 1122 GFP_KERNEL); 1123 if (!s2mps11->ext_control_gpio) 1124 return -ENOMEM; 1125 /* 1126 * 0 is a valid GPIO so initialize all GPIO-s to negative value 1127 * to indicate that external control won't be used for this regulator. 1128 */ 1129 for (i = 0; i < s2mps11->rdev_num; i++) 1130 s2mps11->ext_control_gpio[i] = -EINVAL; 1131 1132 if (!iodev->dev->of_node) { 1133 if (iodev->pdata) { 1134 pdata = iodev->pdata; 1135 goto common_reg; 1136 } else { 1137 dev_err(pdev->dev.parent, 1138 "Platform data or DT node not supplied\n"); 1139 return -ENODEV; 1140 } 1141 } 1142 1143 rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL); 1144 if (!rdata) 1145 return -ENOMEM; 1146 1147 for (i = 0; i < s2mps11->rdev_num; i++) 1148 rdata[i].name = regulators[i].name; 1149 1150 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11); 1151 if (ret) 1152 goto out; 1153 1154 common_reg: 1155 platform_set_drvdata(pdev, s2mps11); 1156 1157 config.dev = &pdev->dev; 1158 config.regmap = iodev->regmap_pmic; 1159 config.driver_data = s2mps11; 1160 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1161 config.ena_gpio_initialized = true; 1162 for (i = 0; i < s2mps11->rdev_num; i++) { 1163 struct regulator_dev *regulator; 1164 1165 if (pdata) { 1166 config.init_data = pdata->regulators[i].initdata; 1167 config.of_node = pdata->regulators[i].reg_node; 1168 } else { 1169 config.init_data = rdata[i].init_data; 1170 config.of_node = rdata[i].of_node; 1171 } 1172 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1173 1174 regulator = devm_regulator_register(&pdev->dev, 1175 ®ulators[i], &config); 1176 if (IS_ERR(regulator)) { 1177 ret = PTR_ERR(regulator); 1178 dev_err(&pdev->dev, "regulator init failed for %d\n", 1179 i); 1180 goto out; 1181 } 1182 1183 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1184 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1185 regulator); 1186 if (ret < 0) { 1187 dev_err(&pdev->dev, 1188 "failed to enable GPIO control over %s: %d\n", 1189 regulator->desc->name, ret); 1190 goto out; 1191 } 1192 } 1193 } 1194 1195 out: 1196 kfree(rdata); 1197 1198 return ret; 1199 } 1200 1201 static const struct platform_device_id s2mps11_pmic_id[] = { 1202 { "s2mps11-regulator", S2MPS11X}, 1203 { "s2mps13-regulator", S2MPS13X}, 1204 { "s2mps14-regulator", S2MPS14X}, 1205 { "s2mps15-regulator", S2MPS15X}, 1206 { "s2mpu02-regulator", S2MPU02}, 1207 { }, 1208 }; 1209 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1210 1211 static struct platform_driver s2mps11_pmic_driver = { 1212 .driver = { 1213 .name = "s2mps11-pmic", 1214 }, 1215 .probe = s2mps11_pmic_probe, 1216 .id_table = s2mps11_pmic_id, 1217 }; 1218 1219 static int __init s2mps11_pmic_init(void) 1220 { 1221 return platform_driver_register(&s2mps11_pmic_driver); 1222 } 1223 subsys_initcall(s2mps11_pmic_init); 1224 1225 static void __exit s2mps11_pmic_exit(void) 1226 { 1227 platform_driver_unregister(&s2mps11_pmic_driver); 1228 } 1229 module_exit(s2mps11_pmic_exit); 1230 1231 /* Module information */ 1232 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1233 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver"); 1234 MODULE_LICENSE("GPL"); 1235