1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Copyright (c) 2012-2014 Samsung Electronics Co., Ltd 4 // http://www.samsung.com 5 6 #include <linux/bug.h> 7 #include <linux/err.h> 8 #include <linux/gpio/consumer.h> 9 #include <linux/slab.h> 10 #include <linux/module.h> 11 #include <linux/of.h> 12 #include <linux/regmap.h> 13 #include <linux/platform_device.h> 14 #include <linux/regulator/driver.h> 15 #include <linux/regulator/machine.h> 16 #include <linux/regulator/of_regulator.h> 17 #include <linux/mfd/samsung/core.h> 18 #include <linux/mfd/samsung/s2mps11.h> 19 #include <linux/mfd/samsung/s2mps13.h> 20 #include <linux/mfd/samsung/s2mps14.h> 21 #include <linux/mfd/samsung/s2mps15.h> 22 #include <linux/mfd/samsung/s2mpu02.h> 23 24 /* The highest number of possible regulators for supported devices. */ 25 #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX 26 struct s2mps11_info { 27 int ramp_delay2; 28 int ramp_delay34; 29 int ramp_delay5; 30 int ramp_delay16; 31 int ramp_delay7810; 32 int ramp_delay9; 33 34 enum sec_device_type dev_type; 35 36 /* 37 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether 38 * the suspend mode was enabled. 39 */ 40 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX); 41 42 /* 43 * Array (size: number of regulators) with GPIO-s for external 44 * sleep control. 45 */ 46 struct gpio_desc **ext_control_gpiod; 47 }; 48 49 static int get_ramp_delay(int ramp_delay) 50 { 51 unsigned char cnt = 0; 52 53 ramp_delay /= 6250; 54 55 while (true) { 56 ramp_delay = ramp_delay >> 1; 57 if (ramp_delay == 0) 58 break; 59 cnt++; 60 } 61 62 if (cnt > 3) 63 cnt = 3; 64 65 return cnt; 66 } 67 68 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 69 unsigned int old_selector, 70 unsigned int new_selector) 71 { 72 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 73 int rdev_id = rdev_get_id(rdev); 74 unsigned int ramp_delay = 0; 75 int old_volt, new_volt; 76 77 switch (rdev_id) { 78 case S2MPS11_BUCK2: 79 ramp_delay = s2mps11->ramp_delay2; 80 break; 81 case S2MPS11_BUCK3: 82 case S2MPS11_BUCK4: 83 ramp_delay = s2mps11->ramp_delay34; 84 break; 85 case S2MPS11_BUCK5: 86 ramp_delay = s2mps11->ramp_delay5; 87 break; 88 case S2MPS11_BUCK6: 89 case S2MPS11_BUCK1: 90 ramp_delay = s2mps11->ramp_delay16; 91 break; 92 case S2MPS11_BUCK7: 93 case S2MPS11_BUCK8: 94 case S2MPS11_BUCK10: 95 ramp_delay = s2mps11->ramp_delay7810; 96 break; 97 case S2MPS11_BUCK9: 98 ramp_delay = s2mps11->ramp_delay9; 99 } 100 101 if (ramp_delay == 0) 102 ramp_delay = rdev->desc->ramp_delay; 103 104 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 105 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 106 107 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 108 } 109 110 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 111 { 112 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 113 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 114 unsigned int ramp_enable = 1, enable_shift = 0; 115 int rdev_id = rdev_get_id(rdev); 116 int ret; 117 118 switch (rdev_id) { 119 case S2MPS11_BUCK1: 120 if (ramp_delay > s2mps11->ramp_delay16) 121 s2mps11->ramp_delay16 = ramp_delay; 122 else 123 ramp_delay = s2mps11->ramp_delay16; 124 125 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 126 break; 127 case S2MPS11_BUCK2: 128 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 129 if (!ramp_delay) { 130 ramp_enable = 0; 131 break; 132 } 133 134 s2mps11->ramp_delay2 = ramp_delay; 135 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 136 ramp_reg = S2MPS11_REG_RAMP; 137 break; 138 case S2MPS11_BUCK3: 139 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 140 if (!ramp_delay) { 141 ramp_enable = 0; 142 break; 143 } 144 145 if (ramp_delay > s2mps11->ramp_delay34) 146 s2mps11->ramp_delay34 = ramp_delay; 147 else 148 ramp_delay = s2mps11->ramp_delay34; 149 150 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 151 ramp_reg = S2MPS11_REG_RAMP; 152 break; 153 case S2MPS11_BUCK4: 154 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 155 if (!ramp_delay) { 156 ramp_enable = 0; 157 break; 158 } 159 160 if (ramp_delay > s2mps11->ramp_delay34) 161 s2mps11->ramp_delay34 = ramp_delay; 162 else 163 ramp_delay = s2mps11->ramp_delay34; 164 165 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 166 ramp_reg = S2MPS11_REG_RAMP; 167 break; 168 case S2MPS11_BUCK5: 169 s2mps11->ramp_delay5 = ramp_delay; 170 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 171 break; 172 case S2MPS11_BUCK6: 173 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 174 if (!ramp_delay) { 175 ramp_enable = 0; 176 break; 177 } 178 179 if (ramp_delay > s2mps11->ramp_delay16) 180 s2mps11->ramp_delay16 = ramp_delay; 181 else 182 ramp_delay = s2mps11->ramp_delay16; 183 184 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 185 break; 186 case S2MPS11_BUCK7: 187 case S2MPS11_BUCK8: 188 case S2MPS11_BUCK10: 189 if (ramp_delay > s2mps11->ramp_delay7810) 190 s2mps11->ramp_delay7810 = ramp_delay; 191 else 192 ramp_delay = s2mps11->ramp_delay7810; 193 194 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 195 break; 196 case S2MPS11_BUCK9: 197 s2mps11->ramp_delay9 = ramp_delay; 198 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 199 break; 200 default: 201 return 0; 202 } 203 204 if (!ramp_enable) 205 goto ramp_disable; 206 207 /* Ramp delay can be enabled/disabled only for buck[2346] */ 208 if ((rdev_id >= S2MPS11_BUCK2 && rdev_id <= S2MPS11_BUCK4) || 209 rdev_id == S2MPS11_BUCK6) { 210 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 211 1 << enable_shift, 1 << enable_shift); 212 if (ret) { 213 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 214 return ret; 215 } 216 } 217 218 ramp_val = get_ramp_delay(ramp_delay); 219 220 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 221 ramp_val << ramp_shift); 222 223 ramp_disable: 224 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 225 1 << enable_shift, 0); 226 } 227 228 static const struct regulator_ops s2mps11_ldo_ops = { 229 .list_voltage = regulator_list_voltage_linear, 230 .map_voltage = regulator_map_voltage_linear, 231 .is_enabled = regulator_is_enabled_regmap, 232 .enable = regulator_enable_regmap, 233 .disable = regulator_disable_regmap, 234 .get_voltage_sel = regulator_get_voltage_sel_regmap, 235 .set_voltage_sel = regulator_set_voltage_sel_regmap, 236 .set_voltage_time_sel = regulator_set_voltage_time_sel, 237 }; 238 239 static const struct regulator_ops s2mps11_buck_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 = s2mps11_regulator_set_voltage_time_sel, 248 .set_ramp_delay = s2mps11_set_ramp_delay, 249 }; 250 251 #define regulator_desc_s2mps11_ldo(num, step) { \ 252 .name = "LDO"#num, \ 253 .id = S2MPS11_LDO##num, \ 254 .ops = &s2mps11_ldo_ops, \ 255 .type = REGULATOR_VOLTAGE, \ 256 .owner = THIS_MODULE, \ 257 .ramp_delay = RAMP_DELAY_12_MVUS, \ 258 .min_uV = MIN_800_MV, \ 259 .uV_step = step, \ 260 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 261 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 262 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 263 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 264 .enable_mask = S2MPS11_ENABLE_MASK \ 265 } 266 267 #define regulator_desc_s2mps11_buck1_4(num) { \ 268 .name = "BUCK"#num, \ 269 .id = S2MPS11_BUCK##num, \ 270 .ops = &s2mps11_buck_ops, \ 271 .type = REGULATOR_VOLTAGE, \ 272 .owner = THIS_MODULE, \ 273 .min_uV = MIN_600_MV, \ 274 .uV_step = STEP_6_25_MV, \ 275 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 276 .ramp_delay = S2MPS11_RAMP_DELAY, \ 277 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 278 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 279 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 280 .enable_mask = S2MPS11_ENABLE_MASK \ 281 } 282 283 #define regulator_desc_s2mps11_buck5 { \ 284 .name = "BUCK5", \ 285 .id = S2MPS11_BUCK5, \ 286 .ops = &s2mps11_buck_ops, \ 287 .type = REGULATOR_VOLTAGE, \ 288 .owner = THIS_MODULE, \ 289 .min_uV = MIN_600_MV, \ 290 .uV_step = STEP_6_25_MV, \ 291 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 292 .ramp_delay = S2MPS11_RAMP_DELAY, \ 293 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 294 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 295 .enable_reg = S2MPS11_REG_B5CTRL1, \ 296 .enable_mask = S2MPS11_ENABLE_MASK \ 297 } 298 299 #define regulator_desc_s2mps11_buck67810(num, min, step) { \ 300 .name = "BUCK"#num, \ 301 .id = S2MPS11_BUCK##num, \ 302 .ops = &s2mps11_buck_ops, \ 303 .type = REGULATOR_VOLTAGE, \ 304 .owner = THIS_MODULE, \ 305 .min_uV = min, \ 306 .uV_step = step, \ 307 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 308 .ramp_delay = S2MPS11_RAMP_DELAY, \ 309 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 310 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 311 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 312 .enable_mask = S2MPS11_ENABLE_MASK \ 313 } 314 315 #define regulator_desc_s2mps11_buck9 { \ 316 .name = "BUCK9", \ 317 .id = S2MPS11_BUCK9, \ 318 .ops = &s2mps11_buck_ops, \ 319 .type = REGULATOR_VOLTAGE, \ 320 .owner = THIS_MODULE, \ 321 .min_uV = MIN_3000_MV, \ 322 .uV_step = STEP_25_MV, \ 323 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \ 324 .ramp_delay = S2MPS11_RAMP_DELAY, \ 325 .vsel_reg = S2MPS11_REG_B9CTRL2, \ 326 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \ 327 .enable_reg = S2MPS11_REG_B9CTRL1, \ 328 .enable_mask = S2MPS11_ENABLE_MASK \ 329 } 330 331 static const struct regulator_desc s2mps11_regulators[] = { 332 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 333 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 334 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 335 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 336 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 337 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 338 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 339 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 340 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 341 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 342 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 343 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 345 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 346 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 347 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 348 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 352 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 353 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 354 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 355 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 358 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 359 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 363 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 364 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 365 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 366 regulator_desc_s2mps11_ldo(35, STEP_25_MV), 367 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 368 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 369 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 370 regulator_desc_s2mps11_buck1_4(1), 371 regulator_desc_s2mps11_buck1_4(2), 372 regulator_desc_s2mps11_buck1_4(3), 373 regulator_desc_s2mps11_buck1_4(4), 374 regulator_desc_s2mps11_buck5, 375 regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), 376 regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV), 377 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV), 378 regulator_desc_s2mps11_buck9, 379 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), 380 }; 381 382 static const struct regulator_ops s2mps14_reg_ops; 383 384 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 385 .name = "LDO"#num, \ 386 .id = S2MPS13_LDO##num, \ 387 .ops = &s2mps14_reg_ops, \ 388 .type = REGULATOR_VOLTAGE, \ 389 .owner = THIS_MODULE, \ 390 .min_uV = min, \ 391 .uV_step = step, \ 392 .linear_min_sel = min_sel, \ 393 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 394 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 395 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 396 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 397 .enable_mask = S2MPS14_ENABLE_MASK \ 398 } 399 400 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 401 .name = "BUCK"#num, \ 402 .id = S2MPS13_BUCK##num, \ 403 .ops = &s2mps14_reg_ops, \ 404 .type = REGULATOR_VOLTAGE, \ 405 .owner = THIS_MODULE, \ 406 .min_uV = min, \ 407 .uV_step = step, \ 408 .linear_min_sel = min_sel, \ 409 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 410 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 411 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 412 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 413 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 414 .enable_mask = S2MPS14_ENABLE_MASK \ 415 } 416 417 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 418 .name = "BUCK"#num, \ 419 .id = S2MPS13_BUCK##num, \ 420 .ops = &s2mps14_reg_ops, \ 421 .type = REGULATOR_VOLTAGE, \ 422 .owner = THIS_MODULE, \ 423 .min_uV = min, \ 424 .uV_step = step, \ 425 .linear_min_sel = min_sel, \ 426 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 427 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 428 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 429 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 430 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 431 .enable_mask = S2MPS14_ENABLE_MASK \ 432 } 433 434 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 435 .name = "BUCK"#num, \ 436 .id = S2MPS13_BUCK##num, \ 437 .ops = &s2mps14_reg_ops, \ 438 .type = REGULATOR_VOLTAGE, \ 439 .owner = THIS_MODULE, \ 440 .min_uV = min, \ 441 .uV_step = step, \ 442 .linear_min_sel = min_sel, \ 443 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 444 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 445 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 446 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 447 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 448 .enable_mask = S2MPS14_ENABLE_MASK \ 449 } 450 451 static const struct regulator_desc s2mps13_regulators[] = { 452 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 453 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 454 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 455 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 456 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 457 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 458 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 459 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 460 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 461 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 462 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 463 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 464 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 465 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 466 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 467 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 468 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 469 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 470 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 471 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 472 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 473 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 474 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 475 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 476 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 477 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 478 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 479 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 480 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 482 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 483 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 484 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 485 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 486 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 487 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 488 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 489 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 490 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 491 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 492 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 493 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 494 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 495 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 496 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 497 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 498 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 499 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 500 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 501 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 502 }; 503 504 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 505 { 506 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 507 int rdev_id = rdev_get_id(rdev); 508 unsigned int val; 509 510 switch (s2mps11->dev_type) { 511 case S2MPS13X: 512 case S2MPS14X: 513 if (test_bit(rdev_id, s2mps11->suspend_state)) 514 val = S2MPS14_ENABLE_SUSPEND; 515 else if (s2mps11->ext_control_gpiod[rdev_id]) 516 val = S2MPS14_ENABLE_EXT_CONTROL; 517 else 518 val = rdev->desc->enable_mask; 519 break; 520 case S2MPU02: 521 if (test_bit(rdev_id, s2mps11->suspend_state)) 522 val = S2MPU02_ENABLE_SUSPEND; 523 else 524 val = rdev->desc->enable_mask; 525 break; 526 default: 527 return -EINVAL; 528 } 529 530 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 531 rdev->desc->enable_mask, val); 532 } 533 534 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 535 { 536 int ret; 537 unsigned int val, state; 538 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 539 int rdev_id = rdev_get_id(rdev); 540 541 /* Below LDO should be always on or does not support suspend mode. */ 542 switch (s2mps11->dev_type) { 543 case S2MPS13X: 544 case S2MPS14X: 545 switch (rdev_id) { 546 case S2MPS14_LDO3: 547 return 0; 548 default: 549 state = S2MPS14_ENABLE_SUSPEND; 550 break; 551 } 552 break; 553 case S2MPU02: 554 switch (rdev_id) { 555 case S2MPU02_LDO13: 556 case S2MPU02_LDO14: 557 case S2MPU02_LDO15: 558 case S2MPU02_LDO17: 559 case S2MPU02_BUCK7: 560 state = S2MPU02_DISABLE_SUSPEND; 561 break; 562 default: 563 state = S2MPU02_ENABLE_SUSPEND; 564 break; 565 } 566 break; 567 default: 568 return -EINVAL; 569 } 570 571 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 572 if (ret < 0) 573 return ret; 574 575 set_bit(rdev_id, s2mps11->suspend_state); 576 /* 577 * Don't enable suspend mode if regulator is already disabled because 578 * this would effectively for a short time turn on the regulator after 579 * resuming. 580 * However we still want to toggle the suspend_state bit for regulator 581 * in case if it got enabled before suspending the system. 582 */ 583 if (!(val & rdev->desc->enable_mask)) 584 return 0; 585 586 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 587 rdev->desc->enable_mask, state); 588 } 589 590 static const struct regulator_ops s2mps14_reg_ops = { 591 .list_voltage = regulator_list_voltage_linear, 592 .map_voltage = regulator_map_voltage_linear, 593 .is_enabled = regulator_is_enabled_regmap, 594 .enable = s2mps14_regulator_enable, 595 .disable = regulator_disable_regmap, 596 .get_voltage_sel = regulator_get_voltage_sel_regmap, 597 .set_voltage_sel = regulator_set_voltage_sel_regmap, 598 .set_voltage_time_sel = regulator_set_voltage_time_sel, 599 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 600 }; 601 602 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 603 .name = "LDO"#num, \ 604 .id = S2MPS14_LDO##num, \ 605 .ops = &s2mps14_reg_ops, \ 606 .type = REGULATOR_VOLTAGE, \ 607 .owner = THIS_MODULE, \ 608 .min_uV = min, \ 609 .uV_step = step, \ 610 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 611 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 612 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 613 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 614 .enable_mask = S2MPS14_ENABLE_MASK \ 615 } 616 617 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 618 .name = "BUCK"#num, \ 619 .id = S2MPS14_BUCK##num, \ 620 .ops = &s2mps14_reg_ops, \ 621 .type = REGULATOR_VOLTAGE, \ 622 .owner = THIS_MODULE, \ 623 .min_uV = min, \ 624 .uV_step = step, \ 625 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 626 .linear_min_sel = min_sel, \ 627 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 628 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 629 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 630 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 631 .enable_mask = S2MPS14_ENABLE_MASK \ 632 } 633 634 static const struct regulator_desc s2mps14_regulators[] = { 635 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 636 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 637 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 638 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 639 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 640 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 641 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 642 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 643 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 644 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 645 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 649 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 652 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 653 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 654 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 655 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 656 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 657 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 658 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 659 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 660 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 661 S2MPS14_BUCK1235_START_SEL), 662 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 663 S2MPS14_BUCK1235_START_SEL), 664 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 665 S2MPS14_BUCK1235_START_SEL), 666 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 667 S2MPS14_BUCK4_START_SEL), 668 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 669 S2MPS14_BUCK1235_START_SEL), 670 }; 671 672 static const struct regulator_ops s2mps15_reg_ldo_ops = { 673 .list_voltage = regulator_list_voltage_linear_range, 674 .map_voltage = regulator_map_voltage_linear_range, 675 .is_enabled = regulator_is_enabled_regmap, 676 .enable = regulator_enable_regmap, 677 .disable = regulator_disable_regmap, 678 .get_voltage_sel = regulator_get_voltage_sel_regmap, 679 .set_voltage_sel = regulator_set_voltage_sel_regmap, 680 }; 681 682 static const struct regulator_ops s2mps15_reg_buck_ops = { 683 .list_voltage = regulator_list_voltage_linear_range, 684 .map_voltage = regulator_map_voltage_linear_range, 685 .is_enabled = regulator_is_enabled_regmap, 686 .enable = regulator_enable_regmap, 687 .disable = regulator_disable_regmap, 688 .get_voltage_sel = regulator_get_voltage_sel_regmap, 689 .set_voltage_sel = regulator_set_voltage_sel_regmap, 690 .set_voltage_time_sel = regulator_set_voltage_time_sel, 691 }; 692 693 #define regulator_desc_s2mps15_ldo(num, range) { \ 694 .name = "LDO"#num, \ 695 .id = S2MPS15_LDO##num, \ 696 .ops = &s2mps15_reg_ldo_ops, \ 697 .type = REGULATOR_VOLTAGE, \ 698 .owner = THIS_MODULE, \ 699 .linear_ranges = range, \ 700 .n_linear_ranges = ARRAY_SIZE(range), \ 701 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \ 702 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \ 703 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \ 704 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \ 705 .enable_mask = S2MPS15_ENABLE_MASK \ 706 } 707 708 #define regulator_desc_s2mps15_buck(num, range) { \ 709 .name = "BUCK"#num, \ 710 .id = S2MPS15_BUCK##num, \ 711 .ops = &s2mps15_reg_buck_ops, \ 712 .type = REGULATOR_VOLTAGE, \ 713 .owner = THIS_MODULE, \ 714 .linear_ranges = range, \ 715 .n_linear_ranges = ARRAY_SIZE(range), \ 716 .ramp_delay = 12500, \ 717 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \ 718 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \ 719 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \ 720 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \ 721 .enable_mask = S2MPS15_ENABLE_MASK \ 722 } 723 724 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ 725 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { 726 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), 727 }; 728 729 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ 730 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { 731 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), 732 }; 733 734 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ 735 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { 736 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), 737 }; 738 739 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ 740 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { 741 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), 742 }; 743 744 /* voltage range for s2mps15 LDO 1 */ 745 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { 746 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), 747 }; 748 749 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ 750 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { 751 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), 752 }; 753 754 /* voltage range for s2mps15 BUCK 8, 9 and 10 */ 755 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { 756 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), 757 }; 758 759 static const struct regulator_desc s2mps15_regulators[] = { 760 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5), 761 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2), 762 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1), 763 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3), 764 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1), 765 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2), 766 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4), 767 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4), 768 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4), 769 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4), 770 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3), 771 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3), 772 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3), 773 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2), 774 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1), 775 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1), 776 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2), 777 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1), 778 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2), 779 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1), 780 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2), 781 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3), 782 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1), 783 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2), 784 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2), 785 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3), 786 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1), 787 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1), 788 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1), 789 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1), 790 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1), 791 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1), 792 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1), 793 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1), 794 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2), 795 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2), 796 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2), 797 }; 798 799 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 800 struct regulator_dev *rdev) 801 { 802 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 803 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 804 } 805 806 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 807 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 808 { 809 struct gpio_desc **gpio = s2mps11->ext_control_gpiod; 810 unsigned int i; 811 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 812 S2MPS14_LDO12 }; 813 814 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 815 unsigned int reg = valid_regulators[i]; 816 817 if (!rdata[reg].init_data || !rdata[reg].of_node) 818 continue; 819 820 gpio[reg] = devm_gpiod_get_from_of_node(&pdev->dev, 821 rdata[reg].of_node, 822 "samsung,ext-control-gpios", 823 0, 824 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE, 825 "s2mps11-regulator"); 826 if (IS_ERR(gpio[reg])) { 827 dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n", 828 reg, rdata[reg].name); 829 continue; 830 } 831 if (gpio[reg]) 832 dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n", 833 reg, rdata[reg].name); 834 } 835 } 836 837 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 838 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11, 839 unsigned int rdev_num) 840 { 841 struct device_node *reg_np; 842 843 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 844 if (!reg_np) { 845 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 846 return -EINVAL; 847 } 848 849 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); 850 if (s2mps11->dev_type == S2MPS14X) 851 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 852 853 of_node_put(reg_np); 854 855 return 0; 856 } 857 858 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 859 { 860 unsigned int ramp_val, ramp_shift, ramp_reg; 861 int rdev_id = rdev_get_id(rdev); 862 863 switch (rdev_id) { 864 case S2MPU02_BUCK1: 865 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 866 break; 867 case S2MPU02_BUCK2: 868 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 869 break; 870 case S2MPU02_BUCK3: 871 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 872 break; 873 case S2MPU02_BUCK4: 874 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 875 break; 876 default: 877 return 0; 878 } 879 ramp_reg = S2MPU02_REG_RAMP1; 880 ramp_val = get_ramp_delay(ramp_delay); 881 882 return regmap_update_bits(rdev->regmap, ramp_reg, 883 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 884 ramp_val << ramp_shift); 885 } 886 887 static const struct regulator_ops s2mpu02_ldo_ops = { 888 .list_voltage = regulator_list_voltage_linear, 889 .map_voltage = regulator_map_voltage_linear, 890 .is_enabled = regulator_is_enabled_regmap, 891 .enable = s2mps14_regulator_enable, 892 .disable = regulator_disable_regmap, 893 .get_voltage_sel = regulator_get_voltage_sel_regmap, 894 .set_voltage_sel = regulator_set_voltage_sel_regmap, 895 .set_voltage_time_sel = regulator_set_voltage_time_sel, 896 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 897 }; 898 899 static const struct regulator_ops s2mpu02_buck_ops = { 900 .list_voltage = regulator_list_voltage_linear, 901 .map_voltage = regulator_map_voltage_linear, 902 .is_enabled = regulator_is_enabled_regmap, 903 .enable = s2mps14_regulator_enable, 904 .disable = regulator_disable_regmap, 905 .get_voltage_sel = regulator_get_voltage_sel_regmap, 906 .set_voltage_sel = regulator_set_voltage_sel_regmap, 907 .set_voltage_time_sel = regulator_set_voltage_time_sel, 908 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 909 .set_ramp_delay = s2mpu02_set_ramp_delay, 910 }; 911 912 #define regulator_desc_s2mpu02_ldo1(num) { \ 913 .name = "LDO"#num, \ 914 .id = S2MPU02_LDO##num, \ 915 .ops = &s2mpu02_ldo_ops, \ 916 .type = REGULATOR_VOLTAGE, \ 917 .owner = THIS_MODULE, \ 918 .min_uV = S2MPU02_LDO_MIN_900MV, \ 919 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 920 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 921 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 922 .vsel_reg = S2MPU02_REG_L1CTRL, \ 923 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 924 .enable_reg = S2MPU02_REG_L1CTRL, \ 925 .enable_mask = S2MPU02_ENABLE_MASK \ 926 } 927 #define regulator_desc_s2mpu02_ldo2(num) { \ 928 .name = "LDO"#num, \ 929 .id = S2MPU02_LDO##num, \ 930 .ops = &s2mpu02_ldo_ops, \ 931 .type = REGULATOR_VOLTAGE, \ 932 .owner = THIS_MODULE, \ 933 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 934 .uV_step = S2MPU02_LDO_STEP_25MV, \ 935 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 936 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 937 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 938 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 939 .enable_reg = S2MPU02_REG_L2CTRL1, \ 940 .enable_mask = S2MPU02_ENABLE_MASK \ 941 } 942 #define regulator_desc_s2mpu02_ldo3(num) { \ 943 .name = "LDO"#num, \ 944 .id = S2MPU02_LDO##num, \ 945 .ops = &s2mpu02_ldo_ops, \ 946 .type = REGULATOR_VOLTAGE, \ 947 .owner = THIS_MODULE, \ 948 .min_uV = S2MPU02_LDO_MIN_900MV, \ 949 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 950 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 951 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 952 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 953 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 954 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 955 .enable_mask = S2MPU02_ENABLE_MASK \ 956 } 957 #define regulator_desc_s2mpu02_ldo4(num) { \ 958 .name = "LDO"#num, \ 959 .id = S2MPU02_LDO##num, \ 960 .ops = &s2mpu02_ldo_ops, \ 961 .type = REGULATOR_VOLTAGE, \ 962 .owner = THIS_MODULE, \ 963 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 964 .uV_step = S2MPU02_LDO_STEP_25MV, \ 965 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 966 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 967 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 968 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 969 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 970 .enable_mask = S2MPU02_ENABLE_MASK \ 971 } 972 #define regulator_desc_s2mpu02_ldo5(num) { \ 973 .name = "LDO"#num, \ 974 .id = S2MPU02_LDO##num, \ 975 .ops = &s2mpu02_ldo_ops, \ 976 .type = REGULATOR_VOLTAGE, \ 977 .owner = THIS_MODULE, \ 978 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 979 .uV_step = S2MPU02_LDO_STEP_50MV, \ 980 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 981 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 982 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 983 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 984 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 985 .enable_mask = S2MPU02_ENABLE_MASK \ 986 } 987 988 #define regulator_desc_s2mpu02_buck1234(num) { \ 989 .name = "BUCK"#num, \ 990 .id = S2MPU02_BUCK##num, \ 991 .ops = &s2mpu02_buck_ops, \ 992 .type = REGULATOR_VOLTAGE, \ 993 .owner = THIS_MODULE, \ 994 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 995 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 996 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 997 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 998 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 999 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 1000 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1001 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 1002 .enable_mask = S2MPU02_ENABLE_MASK \ 1003 } 1004 #define regulator_desc_s2mpu02_buck5(num) { \ 1005 .name = "BUCK"#num, \ 1006 .id = S2MPU02_BUCK##num, \ 1007 .ops = &s2mpu02_ldo_ops, \ 1008 .type = REGULATOR_VOLTAGE, \ 1009 .owner = THIS_MODULE, \ 1010 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 1011 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 1012 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1013 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 1014 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1015 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 1016 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1017 .enable_reg = S2MPU02_REG_B5CTRL1, \ 1018 .enable_mask = S2MPU02_ENABLE_MASK \ 1019 } 1020 #define regulator_desc_s2mpu02_buck6(num) { \ 1021 .name = "BUCK"#num, \ 1022 .id = S2MPU02_BUCK##num, \ 1023 .ops = &s2mpu02_ldo_ops, \ 1024 .type = REGULATOR_VOLTAGE, \ 1025 .owner = THIS_MODULE, \ 1026 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 1027 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 1028 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1029 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 1030 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1031 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 1032 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1033 .enable_reg = S2MPU02_REG_B6CTRL1, \ 1034 .enable_mask = S2MPU02_ENABLE_MASK \ 1035 } 1036 #define regulator_desc_s2mpu02_buck7(num) { \ 1037 .name = "BUCK"#num, \ 1038 .id = S2MPU02_BUCK##num, \ 1039 .ops = &s2mpu02_ldo_ops, \ 1040 .type = REGULATOR_VOLTAGE, \ 1041 .owner = THIS_MODULE, \ 1042 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 1043 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 1044 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1045 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 1046 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1047 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 1048 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1049 .enable_reg = S2MPU02_REG_B7CTRL1, \ 1050 .enable_mask = S2MPU02_ENABLE_MASK \ 1051 } 1052 1053 static const struct regulator_desc s2mpu02_regulators[] = { 1054 regulator_desc_s2mpu02_ldo1(1), 1055 regulator_desc_s2mpu02_ldo2(2), 1056 regulator_desc_s2mpu02_ldo4(3), 1057 regulator_desc_s2mpu02_ldo5(4), 1058 regulator_desc_s2mpu02_ldo4(5), 1059 regulator_desc_s2mpu02_ldo3(6), 1060 regulator_desc_s2mpu02_ldo3(7), 1061 regulator_desc_s2mpu02_ldo4(8), 1062 regulator_desc_s2mpu02_ldo5(9), 1063 regulator_desc_s2mpu02_ldo3(10), 1064 regulator_desc_s2mpu02_ldo4(11), 1065 regulator_desc_s2mpu02_ldo5(12), 1066 regulator_desc_s2mpu02_ldo5(13), 1067 regulator_desc_s2mpu02_ldo5(14), 1068 regulator_desc_s2mpu02_ldo5(15), 1069 regulator_desc_s2mpu02_ldo5(16), 1070 regulator_desc_s2mpu02_ldo4(17), 1071 regulator_desc_s2mpu02_ldo5(18), 1072 regulator_desc_s2mpu02_ldo3(19), 1073 regulator_desc_s2mpu02_ldo4(20), 1074 regulator_desc_s2mpu02_ldo5(21), 1075 regulator_desc_s2mpu02_ldo5(22), 1076 regulator_desc_s2mpu02_ldo5(23), 1077 regulator_desc_s2mpu02_ldo4(24), 1078 regulator_desc_s2mpu02_ldo5(25), 1079 regulator_desc_s2mpu02_ldo4(26), 1080 regulator_desc_s2mpu02_ldo5(27), 1081 regulator_desc_s2mpu02_ldo5(28), 1082 regulator_desc_s2mpu02_buck1234(1), 1083 regulator_desc_s2mpu02_buck1234(2), 1084 regulator_desc_s2mpu02_buck1234(3), 1085 regulator_desc_s2mpu02_buck1234(4), 1086 regulator_desc_s2mpu02_buck5(5), 1087 regulator_desc_s2mpu02_buck6(6), 1088 regulator_desc_s2mpu02_buck7(7), 1089 }; 1090 1091 static int s2mps11_pmic_probe(struct platform_device *pdev) 1092 { 1093 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 1094 struct sec_platform_data *pdata = NULL; 1095 struct of_regulator_match *rdata = NULL; 1096 struct regulator_config config = { }; 1097 struct s2mps11_info *s2mps11; 1098 unsigned int rdev_num = 0; 1099 int i, ret = 0; 1100 const struct regulator_desc *regulators; 1101 1102 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 1103 GFP_KERNEL); 1104 if (!s2mps11) 1105 return -ENOMEM; 1106 1107 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 1108 switch (s2mps11->dev_type) { 1109 case S2MPS11X: 1110 rdev_num = ARRAY_SIZE(s2mps11_regulators); 1111 regulators = s2mps11_regulators; 1112 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators)); 1113 break; 1114 case S2MPS13X: 1115 rdev_num = ARRAY_SIZE(s2mps13_regulators); 1116 regulators = s2mps13_regulators; 1117 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators)); 1118 break; 1119 case S2MPS14X: 1120 rdev_num = ARRAY_SIZE(s2mps14_regulators); 1121 regulators = s2mps14_regulators; 1122 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators)); 1123 break; 1124 case S2MPS15X: 1125 rdev_num = ARRAY_SIZE(s2mps15_regulators); 1126 regulators = s2mps15_regulators; 1127 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators)); 1128 break; 1129 case S2MPU02: 1130 rdev_num = ARRAY_SIZE(s2mpu02_regulators); 1131 regulators = s2mpu02_regulators; 1132 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators)); 1133 break; 1134 default: 1135 dev_err(&pdev->dev, "Invalid device type: %u\n", 1136 s2mps11->dev_type); 1137 return -EINVAL; 1138 } 1139 1140 s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num, 1141 sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL); 1142 if (!s2mps11->ext_control_gpiod) 1143 return -ENOMEM; 1144 1145 if (!iodev->dev->of_node) { 1146 if (iodev->pdata) { 1147 pdata = iodev->pdata; 1148 goto common_reg; 1149 } else { 1150 dev_err(pdev->dev.parent, 1151 "Platform data or DT node not supplied\n"); 1152 return -ENODEV; 1153 } 1154 } 1155 1156 rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL); 1157 if (!rdata) 1158 return -ENOMEM; 1159 1160 for (i = 0; i < rdev_num; i++) 1161 rdata[i].name = regulators[i].name; 1162 1163 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num); 1164 if (ret) 1165 goto out; 1166 1167 common_reg: 1168 platform_set_drvdata(pdev, s2mps11); 1169 1170 config.dev = &pdev->dev; 1171 config.regmap = iodev->regmap_pmic; 1172 config.driver_data = s2mps11; 1173 for (i = 0; i < rdev_num; i++) { 1174 struct regulator_dev *regulator; 1175 1176 if (pdata) { 1177 config.init_data = pdata->regulators[i].initdata; 1178 config.of_node = pdata->regulators[i].reg_node; 1179 } else { 1180 config.init_data = rdata[i].init_data; 1181 config.of_node = rdata[i].of_node; 1182 } 1183 config.ena_gpiod = s2mps11->ext_control_gpiod[i]; 1184 /* 1185 * Hand the GPIO descriptor management over to the regulator 1186 * core, remove it from devres management. 1187 */ 1188 if (config.ena_gpiod) 1189 devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod); 1190 regulator = devm_regulator_register(&pdev->dev, 1191 ®ulators[i], &config); 1192 if (IS_ERR(regulator)) { 1193 ret = PTR_ERR(regulator); 1194 dev_err(&pdev->dev, "regulator init failed for %d\n", 1195 i); 1196 goto out; 1197 } 1198 1199 if (s2mps11->ext_control_gpiod[i]) { 1200 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1201 regulator); 1202 if (ret < 0) { 1203 dev_err(&pdev->dev, 1204 "failed to enable GPIO control over %s: %d\n", 1205 regulator->desc->name, ret); 1206 goto out; 1207 } 1208 } 1209 } 1210 1211 out: 1212 kfree(rdata); 1213 1214 return ret; 1215 } 1216 1217 static const struct platform_device_id s2mps11_pmic_id[] = { 1218 { "s2mps11-regulator", S2MPS11X}, 1219 { "s2mps13-regulator", S2MPS13X}, 1220 { "s2mps14-regulator", S2MPS14X}, 1221 { "s2mps15-regulator", S2MPS15X}, 1222 { "s2mpu02-regulator", S2MPU02}, 1223 { }, 1224 }; 1225 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1226 1227 static struct platform_driver s2mps11_pmic_driver = { 1228 .driver = { 1229 .name = "s2mps11-pmic", 1230 }, 1231 .probe = s2mps11_pmic_probe, 1232 .id_table = s2mps11_pmic_id, 1233 }; 1234 1235 module_platform_driver(s2mps11_pmic_driver); 1236 1237 /* Module information */ 1238 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1239 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver"); 1240 MODULE_LICENSE("GPL"); 1241