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 unsigned int ramp_delay = 0; 74 int old_volt, new_volt; 75 76 switch (rdev_get_id(rdev)) { 77 case S2MPS11_BUCK2: 78 ramp_delay = s2mps11->ramp_delay2; 79 break; 80 case S2MPS11_BUCK3: 81 case S2MPS11_BUCK4: 82 ramp_delay = s2mps11->ramp_delay34; 83 break; 84 case S2MPS11_BUCK5: 85 ramp_delay = s2mps11->ramp_delay5; 86 break; 87 case S2MPS11_BUCK6: 88 case S2MPS11_BUCK1: 89 ramp_delay = s2mps11->ramp_delay16; 90 break; 91 case S2MPS11_BUCK7: 92 case S2MPS11_BUCK8: 93 case S2MPS11_BUCK10: 94 ramp_delay = s2mps11->ramp_delay7810; 95 break; 96 case S2MPS11_BUCK9: 97 ramp_delay = s2mps11->ramp_delay9; 98 } 99 100 if (ramp_delay == 0) 101 ramp_delay = rdev->desc->ramp_delay; 102 103 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); 104 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); 105 106 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); 107 } 108 109 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 110 { 111 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 112 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; 113 unsigned int ramp_enable = 1, enable_shift = 0; 114 int ret; 115 116 switch (rdev_get_id(rdev)) { 117 case S2MPS11_BUCK1: 118 if (ramp_delay > s2mps11->ramp_delay16) 119 s2mps11->ramp_delay16 = ramp_delay; 120 else 121 ramp_delay = s2mps11->ramp_delay16; 122 123 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 124 break; 125 case S2MPS11_BUCK2: 126 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 127 if (!ramp_delay) { 128 ramp_enable = 0; 129 break; 130 } 131 132 s2mps11->ramp_delay2 = ramp_delay; 133 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 134 ramp_reg = S2MPS11_REG_RAMP; 135 break; 136 case S2MPS11_BUCK3: 137 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 138 if (!ramp_delay) { 139 ramp_enable = 0; 140 break; 141 } 142 143 if (ramp_delay > s2mps11->ramp_delay34) 144 s2mps11->ramp_delay34 = ramp_delay; 145 else 146 ramp_delay = s2mps11->ramp_delay34; 147 148 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 149 ramp_reg = S2MPS11_REG_RAMP; 150 break; 151 case S2MPS11_BUCK4: 152 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 153 if (!ramp_delay) { 154 ramp_enable = 0; 155 break; 156 } 157 158 if (ramp_delay > s2mps11->ramp_delay34) 159 s2mps11->ramp_delay34 = ramp_delay; 160 else 161 ramp_delay = s2mps11->ramp_delay34; 162 163 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 164 ramp_reg = S2MPS11_REG_RAMP; 165 break; 166 case S2MPS11_BUCK5: 167 s2mps11->ramp_delay5 = ramp_delay; 168 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 169 break; 170 case S2MPS11_BUCK6: 171 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 172 if (!ramp_delay) { 173 ramp_enable = 0; 174 break; 175 } 176 177 if (ramp_delay > s2mps11->ramp_delay16) 178 s2mps11->ramp_delay16 = ramp_delay; 179 else 180 ramp_delay = s2mps11->ramp_delay16; 181 182 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 183 break; 184 case S2MPS11_BUCK7: 185 case S2MPS11_BUCK8: 186 case S2MPS11_BUCK10: 187 if (ramp_delay > s2mps11->ramp_delay7810) 188 s2mps11->ramp_delay7810 = ramp_delay; 189 else 190 ramp_delay = s2mps11->ramp_delay7810; 191 192 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 193 break; 194 case S2MPS11_BUCK9: 195 s2mps11->ramp_delay9 = ramp_delay; 196 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 197 break; 198 default: 199 return 0; 200 } 201 202 if (!ramp_enable) 203 goto ramp_disable; 204 205 /* Ramp delay can be enabled/disabled only for buck[2346] */ 206 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 207 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 208 rdev_get_id(rdev) == S2MPS11_BUCK6) { 209 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 210 1 << enable_shift, 1 << enable_shift); 211 if (ret) { 212 dev_err(&rdev->dev, "failed to enable ramp rate\n"); 213 return ret; 214 } 215 } 216 217 ramp_val = get_ramp_delay(ramp_delay); 218 219 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, 220 ramp_val << ramp_shift); 221 222 ramp_disable: 223 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, 224 1 << enable_shift, 0); 225 } 226 227 static const struct regulator_ops s2mps11_ldo_ops = { 228 .list_voltage = regulator_list_voltage_linear, 229 .map_voltage = regulator_map_voltage_linear, 230 .is_enabled = regulator_is_enabled_regmap, 231 .enable = regulator_enable_regmap, 232 .disable = regulator_disable_regmap, 233 .get_voltage_sel = regulator_get_voltage_sel_regmap, 234 .set_voltage_sel = regulator_set_voltage_sel_regmap, 235 .set_voltage_time_sel = regulator_set_voltage_time_sel, 236 }; 237 238 static const struct regulator_ops s2mps11_buck_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 = s2mps11_regulator_set_voltage_time_sel, 247 .set_ramp_delay = s2mps11_set_ramp_delay, 248 }; 249 250 #define regulator_desc_s2mps11_ldo(num, step) { \ 251 .name = "LDO"#num, \ 252 .id = S2MPS11_LDO##num, \ 253 .ops = &s2mps11_ldo_ops, \ 254 .type = REGULATOR_VOLTAGE, \ 255 .owner = THIS_MODULE, \ 256 .ramp_delay = RAMP_DELAY_12_MVUS, \ 257 .min_uV = MIN_800_MV, \ 258 .uV_step = step, \ 259 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ 260 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ 261 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ 262 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ 263 .enable_mask = S2MPS11_ENABLE_MASK \ 264 } 265 266 #define regulator_desc_s2mps11_buck1_4(num) { \ 267 .name = "BUCK"#num, \ 268 .id = S2MPS11_BUCK##num, \ 269 .ops = &s2mps11_buck_ops, \ 270 .type = REGULATOR_VOLTAGE, \ 271 .owner = THIS_MODULE, \ 272 .min_uV = MIN_600_MV, \ 273 .uV_step = STEP_6_25_MV, \ 274 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 275 .ramp_delay = S2MPS11_RAMP_DELAY, \ 276 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ 277 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 278 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \ 279 .enable_mask = S2MPS11_ENABLE_MASK \ 280 } 281 282 #define regulator_desc_s2mps11_buck5 { \ 283 .name = "BUCK5", \ 284 .id = S2MPS11_BUCK5, \ 285 .ops = &s2mps11_buck_ops, \ 286 .type = REGULATOR_VOLTAGE, \ 287 .owner = THIS_MODULE, \ 288 .min_uV = MIN_600_MV, \ 289 .uV_step = STEP_6_25_MV, \ 290 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 291 .ramp_delay = S2MPS11_RAMP_DELAY, \ 292 .vsel_reg = S2MPS11_REG_B5CTRL2, \ 293 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 294 .enable_reg = S2MPS11_REG_B5CTRL1, \ 295 .enable_mask = S2MPS11_ENABLE_MASK \ 296 } 297 298 #define regulator_desc_s2mps11_buck67810(num, min, step) { \ 299 .name = "BUCK"#num, \ 300 .id = S2MPS11_BUCK##num, \ 301 .ops = &s2mps11_buck_ops, \ 302 .type = REGULATOR_VOLTAGE, \ 303 .owner = THIS_MODULE, \ 304 .min_uV = min, \ 305 .uV_step = step, \ 306 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ 307 .ramp_delay = S2MPS11_RAMP_DELAY, \ 308 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ 309 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ 310 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \ 311 .enable_mask = S2MPS11_ENABLE_MASK \ 312 } 313 314 #define regulator_desc_s2mps11_buck9 { \ 315 .name = "BUCK9", \ 316 .id = S2MPS11_BUCK9, \ 317 .ops = &s2mps11_buck_ops, \ 318 .type = REGULATOR_VOLTAGE, \ 319 .owner = THIS_MODULE, \ 320 .min_uV = MIN_3000_MV, \ 321 .uV_step = STEP_25_MV, \ 322 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \ 323 .ramp_delay = S2MPS11_RAMP_DELAY, \ 324 .vsel_reg = S2MPS11_REG_B9CTRL2, \ 325 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \ 326 .enable_reg = S2MPS11_REG_B9CTRL1, \ 327 .enable_mask = S2MPS11_ENABLE_MASK \ 328 } 329 330 static const struct regulator_desc s2mps11_regulators[] = { 331 regulator_desc_s2mps11_ldo(1, STEP_25_MV), 332 regulator_desc_s2mps11_ldo(2, STEP_50_MV), 333 regulator_desc_s2mps11_ldo(3, STEP_50_MV), 334 regulator_desc_s2mps11_ldo(4, STEP_50_MV), 335 regulator_desc_s2mps11_ldo(5, STEP_50_MV), 336 regulator_desc_s2mps11_ldo(6, STEP_25_MV), 337 regulator_desc_s2mps11_ldo(7, STEP_50_MV), 338 regulator_desc_s2mps11_ldo(8, STEP_50_MV), 339 regulator_desc_s2mps11_ldo(9, STEP_50_MV), 340 regulator_desc_s2mps11_ldo(10, STEP_50_MV), 341 regulator_desc_s2mps11_ldo(11, STEP_25_MV), 342 regulator_desc_s2mps11_ldo(12, STEP_50_MV), 343 regulator_desc_s2mps11_ldo(13, STEP_50_MV), 344 regulator_desc_s2mps11_ldo(14, STEP_50_MV), 345 regulator_desc_s2mps11_ldo(15, STEP_50_MV), 346 regulator_desc_s2mps11_ldo(16, STEP_50_MV), 347 regulator_desc_s2mps11_ldo(17, STEP_50_MV), 348 regulator_desc_s2mps11_ldo(18, STEP_50_MV), 349 regulator_desc_s2mps11_ldo(19, STEP_50_MV), 350 regulator_desc_s2mps11_ldo(20, STEP_50_MV), 351 regulator_desc_s2mps11_ldo(21, STEP_50_MV), 352 regulator_desc_s2mps11_ldo(22, STEP_25_MV), 353 regulator_desc_s2mps11_ldo(23, STEP_25_MV), 354 regulator_desc_s2mps11_ldo(24, STEP_50_MV), 355 regulator_desc_s2mps11_ldo(25, STEP_50_MV), 356 regulator_desc_s2mps11_ldo(26, STEP_50_MV), 357 regulator_desc_s2mps11_ldo(27, STEP_25_MV), 358 regulator_desc_s2mps11_ldo(28, STEP_50_MV), 359 regulator_desc_s2mps11_ldo(29, STEP_50_MV), 360 regulator_desc_s2mps11_ldo(30, STEP_50_MV), 361 regulator_desc_s2mps11_ldo(31, STEP_50_MV), 362 regulator_desc_s2mps11_ldo(32, STEP_50_MV), 363 regulator_desc_s2mps11_ldo(33, STEP_50_MV), 364 regulator_desc_s2mps11_ldo(34, STEP_50_MV), 365 regulator_desc_s2mps11_ldo(35, STEP_25_MV), 366 regulator_desc_s2mps11_ldo(36, STEP_50_MV), 367 regulator_desc_s2mps11_ldo(37, STEP_50_MV), 368 regulator_desc_s2mps11_ldo(38, STEP_50_MV), 369 regulator_desc_s2mps11_buck1_4(1), 370 regulator_desc_s2mps11_buck1_4(2), 371 regulator_desc_s2mps11_buck1_4(3), 372 regulator_desc_s2mps11_buck1_4(4), 373 regulator_desc_s2mps11_buck5, 374 regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), 375 regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV), 376 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV), 377 regulator_desc_s2mps11_buck9, 378 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), 379 }; 380 381 static const struct regulator_ops s2mps14_reg_ops; 382 383 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ 384 .name = "LDO"#num, \ 385 .id = S2MPS13_LDO##num, \ 386 .ops = &s2mps14_reg_ops, \ 387 .type = REGULATOR_VOLTAGE, \ 388 .owner = THIS_MODULE, \ 389 .min_uV = min, \ 390 .uV_step = step, \ 391 .linear_min_sel = min_sel, \ 392 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 393 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ 394 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 395 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ 396 .enable_mask = S2MPS14_ENABLE_MASK \ 397 } 398 399 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ 400 .name = "BUCK"#num, \ 401 .id = S2MPS13_BUCK##num, \ 402 .ops = &s2mps14_reg_ops, \ 403 .type = REGULATOR_VOLTAGE, \ 404 .owner = THIS_MODULE, \ 405 .min_uV = min, \ 406 .uV_step = step, \ 407 .linear_min_sel = min_sel, \ 408 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 409 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 410 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ 411 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 412 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 413 .enable_mask = S2MPS14_ENABLE_MASK \ 414 } 415 416 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \ 417 .name = "BUCK"#num, \ 418 .id = S2MPS13_BUCK##num, \ 419 .ops = &s2mps14_reg_ops, \ 420 .type = REGULATOR_VOLTAGE, \ 421 .owner = THIS_MODULE, \ 422 .min_uV = min, \ 423 .uV_step = step, \ 424 .linear_min_sel = min_sel, \ 425 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 426 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 427 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 428 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 429 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ 430 .enable_mask = S2MPS14_ENABLE_MASK \ 431 } 432 433 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \ 434 .name = "BUCK"#num, \ 435 .id = S2MPS13_BUCK##num, \ 436 .ops = &s2mps14_reg_ops, \ 437 .type = REGULATOR_VOLTAGE, \ 438 .owner = THIS_MODULE, \ 439 .min_uV = min, \ 440 .uV_step = step, \ 441 .linear_min_sel = min_sel, \ 442 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 443 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ 444 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \ 445 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 446 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \ 447 .enable_mask = S2MPS14_ENABLE_MASK \ 448 } 449 450 static const struct regulator_desc s2mps13_regulators[] = { 451 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), 452 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), 453 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), 454 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), 455 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), 456 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), 457 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), 458 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), 459 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), 460 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), 461 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), 462 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), 463 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), 464 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), 465 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), 466 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), 467 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), 468 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), 469 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), 470 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), 471 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), 472 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), 473 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), 474 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), 475 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), 476 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), 477 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), 478 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), 479 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), 480 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), 481 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), 482 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), 483 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), 484 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), 485 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), 486 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), 487 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), 488 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), 489 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), 490 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), 491 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), 492 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), 493 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), 494 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), 495 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), 496 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), 497 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10), 498 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20), 499 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20), 500 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10), 501 }; 502 503 static int s2mps14_regulator_enable(struct regulator_dev *rdev) 504 { 505 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 506 unsigned int val; 507 508 switch (s2mps11->dev_type) { 509 case S2MPS13X: 510 case S2MPS14X: 511 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 512 val = S2MPS14_ENABLE_SUSPEND; 513 else if (s2mps11->ext_control_gpiod[rdev_get_id(rdev)]) 514 val = S2MPS14_ENABLE_EXT_CONTROL; 515 else 516 val = rdev->desc->enable_mask; 517 break; 518 case S2MPU02: 519 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 520 val = S2MPU02_ENABLE_SUSPEND; 521 else 522 val = rdev->desc->enable_mask; 523 break; 524 default: 525 return -EINVAL; 526 } 527 528 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 529 rdev->desc->enable_mask, val); 530 } 531 532 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 533 { 534 int ret; 535 unsigned int val, state; 536 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 537 int rdev_id = rdev_get_id(rdev); 538 539 /* Below LDO should be always on or does not support suspend mode. */ 540 switch (s2mps11->dev_type) { 541 case S2MPS13X: 542 case S2MPS14X: 543 switch (rdev_id) { 544 case S2MPS14_LDO3: 545 return 0; 546 default: 547 state = S2MPS14_ENABLE_SUSPEND; 548 break; 549 } 550 break; 551 case S2MPU02: 552 switch (rdev_id) { 553 case S2MPU02_LDO13: 554 case S2MPU02_LDO14: 555 case S2MPU02_LDO15: 556 case S2MPU02_LDO17: 557 case S2MPU02_BUCK7: 558 state = S2MPU02_DISABLE_SUSPEND; 559 break; 560 default: 561 state = S2MPU02_ENABLE_SUSPEND; 562 break; 563 } 564 break; 565 default: 566 return -EINVAL; 567 } 568 569 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 570 if (ret < 0) 571 return ret; 572 573 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 574 /* 575 * Don't enable suspend mode if regulator is already disabled because 576 * this would effectively for a short time turn on the regulator after 577 * resuming. 578 * However we still want to toggle the suspend_state bit for regulator 579 * in case if it got enabled before suspending the system. 580 */ 581 if (!(val & rdev->desc->enable_mask)) 582 return 0; 583 584 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 585 rdev->desc->enable_mask, state); 586 } 587 588 static const struct regulator_ops s2mps14_reg_ops = { 589 .list_voltage = regulator_list_voltage_linear, 590 .map_voltage = regulator_map_voltage_linear, 591 .is_enabled = regulator_is_enabled_regmap, 592 .enable = s2mps14_regulator_enable, 593 .disable = regulator_disable_regmap, 594 .get_voltage_sel = regulator_get_voltage_sel_regmap, 595 .set_voltage_sel = regulator_set_voltage_sel_regmap, 596 .set_voltage_time_sel = regulator_set_voltage_time_sel, 597 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 598 }; 599 600 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 601 .name = "LDO"#num, \ 602 .id = S2MPS14_LDO##num, \ 603 .ops = &s2mps14_reg_ops, \ 604 .type = REGULATOR_VOLTAGE, \ 605 .owner = THIS_MODULE, \ 606 .min_uV = min, \ 607 .uV_step = step, \ 608 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 609 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 610 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 611 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 612 .enable_mask = S2MPS14_ENABLE_MASK \ 613 } 614 615 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 616 .name = "BUCK"#num, \ 617 .id = S2MPS14_BUCK##num, \ 618 .ops = &s2mps14_reg_ops, \ 619 .type = REGULATOR_VOLTAGE, \ 620 .owner = THIS_MODULE, \ 621 .min_uV = min, \ 622 .uV_step = step, \ 623 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 624 .linear_min_sel = min_sel, \ 625 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 626 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 627 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 628 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 629 .enable_mask = S2MPS14_ENABLE_MASK \ 630 } 631 632 static const struct regulator_desc s2mps14_regulators[] = { 633 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 634 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 635 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 636 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 637 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 638 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 639 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 640 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 641 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 642 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 643 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 644 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 645 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 649 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 652 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 653 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 654 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 655 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 656 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 657 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 658 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 659 S2MPS14_BUCK1235_START_SEL), 660 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 661 S2MPS14_BUCK1235_START_SEL), 662 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 663 S2MPS14_BUCK1235_START_SEL), 664 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 665 S2MPS14_BUCK4_START_SEL), 666 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 667 S2MPS14_BUCK1235_START_SEL), 668 }; 669 670 static const struct regulator_ops s2mps15_reg_ldo_ops = { 671 .list_voltage = regulator_list_voltage_linear_range, 672 .map_voltage = regulator_map_voltage_linear_range, 673 .is_enabled = regulator_is_enabled_regmap, 674 .enable = regulator_enable_regmap, 675 .disable = regulator_disable_regmap, 676 .get_voltage_sel = regulator_get_voltage_sel_regmap, 677 .set_voltage_sel = regulator_set_voltage_sel_regmap, 678 }; 679 680 static const struct regulator_ops s2mps15_reg_buck_ops = { 681 .list_voltage = regulator_list_voltage_linear_range, 682 .map_voltage = regulator_map_voltage_linear_range, 683 .is_enabled = regulator_is_enabled_regmap, 684 .enable = regulator_enable_regmap, 685 .disable = regulator_disable_regmap, 686 .get_voltage_sel = regulator_get_voltage_sel_regmap, 687 .set_voltage_sel = regulator_set_voltage_sel_regmap, 688 .set_voltage_time_sel = regulator_set_voltage_time_sel, 689 }; 690 691 #define regulator_desc_s2mps15_ldo(num, range) { \ 692 .name = "LDO"#num, \ 693 .id = S2MPS15_LDO##num, \ 694 .ops = &s2mps15_reg_ldo_ops, \ 695 .type = REGULATOR_VOLTAGE, \ 696 .owner = THIS_MODULE, \ 697 .linear_ranges = range, \ 698 .n_linear_ranges = ARRAY_SIZE(range), \ 699 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \ 700 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \ 701 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \ 702 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \ 703 .enable_mask = S2MPS15_ENABLE_MASK \ 704 } 705 706 #define regulator_desc_s2mps15_buck(num, range) { \ 707 .name = "BUCK"#num, \ 708 .id = S2MPS15_BUCK##num, \ 709 .ops = &s2mps15_reg_buck_ops, \ 710 .type = REGULATOR_VOLTAGE, \ 711 .owner = THIS_MODULE, \ 712 .linear_ranges = range, \ 713 .n_linear_ranges = ARRAY_SIZE(range), \ 714 .ramp_delay = 12500, \ 715 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \ 716 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \ 717 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \ 718 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \ 719 .enable_mask = S2MPS15_ENABLE_MASK \ 720 } 721 722 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ 723 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { 724 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), 725 }; 726 727 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ 728 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { 729 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), 730 }; 731 732 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ 733 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { 734 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), 735 }; 736 737 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ 738 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { 739 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), 740 }; 741 742 /* voltage range for s2mps15 LDO 1 */ 743 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { 744 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), 745 }; 746 747 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ 748 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { 749 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), 750 }; 751 752 /* voltage range for s2mps15 BUCK 8, 9 and 10 */ 753 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { 754 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), 755 }; 756 757 static const struct regulator_desc s2mps15_regulators[] = { 758 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5), 759 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2), 760 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1), 761 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3), 762 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1), 763 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2), 764 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4), 765 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4), 766 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4), 767 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4), 768 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3), 769 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3), 770 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3), 771 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2), 772 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1), 773 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1), 774 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2), 775 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1), 776 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2), 777 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1), 778 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2), 779 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3), 780 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1), 781 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2), 782 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2), 783 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3), 784 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1), 785 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1), 786 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1), 787 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1), 788 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1), 789 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1), 790 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1), 791 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1), 792 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2), 793 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2), 794 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2), 795 }; 796 797 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 798 struct regulator_dev *rdev) 799 { 800 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 801 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 802 } 803 804 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 805 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 806 { 807 struct gpio_desc **gpio = s2mps11->ext_control_gpiod; 808 unsigned int i; 809 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 810 S2MPS14_LDO12 }; 811 812 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 813 unsigned int reg = valid_regulators[i]; 814 815 if (!rdata[reg].init_data || !rdata[reg].of_node) 816 continue; 817 818 gpio[reg] = devm_gpiod_get_from_of_node(&pdev->dev, 819 rdata[reg].of_node, 820 "samsung,ext-control-gpios", 821 0, 822 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE, 823 "s2mps11-regulator"); 824 if (IS_ERR(gpio[reg])) { 825 dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n", 826 reg, rdata[reg].name); 827 continue; 828 } 829 if (gpio[reg]) 830 dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n", 831 reg, rdata[reg].name); 832 } 833 } 834 835 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 836 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11, 837 unsigned int rdev_num) 838 { 839 struct device_node *reg_np; 840 841 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 842 if (!reg_np) { 843 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 844 return -EINVAL; 845 } 846 847 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); 848 if (s2mps11->dev_type == S2MPS14X) 849 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 850 851 of_node_put(reg_np); 852 853 return 0; 854 } 855 856 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 857 { 858 unsigned int ramp_val, ramp_shift, ramp_reg; 859 860 switch (rdev_get_id(rdev)) { 861 case S2MPU02_BUCK1: 862 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 863 break; 864 case S2MPU02_BUCK2: 865 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 866 break; 867 case S2MPU02_BUCK3: 868 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 869 break; 870 case S2MPU02_BUCK4: 871 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 872 break; 873 default: 874 return 0; 875 } 876 ramp_reg = S2MPU02_REG_RAMP1; 877 ramp_val = get_ramp_delay(ramp_delay); 878 879 return regmap_update_bits(rdev->regmap, ramp_reg, 880 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 881 ramp_val << ramp_shift); 882 } 883 884 static const struct regulator_ops s2mpu02_ldo_ops = { 885 .list_voltage = regulator_list_voltage_linear, 886 .map_voltage = regulator_map_voltage_linear, 887 .is_enabled = regulator_is_enabled_regmap, 888 .enable = s2mps14_regulator_enable, 889 .disable = regulator_disable_regmap, 890 .get_voltage_sel = regulator_get_voltage_sel_regmap, 891 .set_voltage_sel = regulator_set_voltage_sel_regmap, 892 .set_voltage_time_sel = regulator_set_voltage_time_sel, 893 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 894 }; 895 896 static const struct regulator_ops s2mpu02_buck_ops = { 897 .list_voltage = regulator_list_voltage_linear, 898 .map_voltage = regulator_map_voltage_linear, 899 .is_enabled = regulator_is_enabled_regmap, 900 .enable = s2mps14_regulator_enable, 901 .disable = regulator_disable_regmap, 902 .get_voltage_sel = regulator_get_voltage_sel_regmap, 903 .set_voltage_sel = regulator_set_voltage_sel_regmap, 904 .set_voltage_time_sel = regulator_set_voltage_time_sel, 905 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 906 .set_ramp_delay = s2mpu02_set_ramp_delay, 907 }; 908 909 #define regulator_desc_s2mpu02_ldo1(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_900MV, \ 916 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 917 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 918 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 919 .vsel_reg = S2MPU02_REG_L1CTRL, \ 920 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 921 .enable_reg = S2MPU02_REG_L1CTRL, \ 922 .enable_mask = S2MPU02_ENABLE_MASK \ 923 } 924 #define regulator_desc_s2mpu02_ldo2(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_1050MV, \ 931 .uV_step = S2MPU02_LDO_STEP_25MV, \ 932 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 933 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 934 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 935 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 936 .enable_reg = S2MPU02_REG_L2CTRL1, \ 937 .enable_mask = S2MPU02_ENABLE_MASK \ 938 } 939 #define regulator_desc_s2mpu02_ldo3(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_900MV, \ 946 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 947 .linear_min_sel = S2MPU02_LDO_GROUP1_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_ldo4(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_1050MV, \ 961 .uV_step = S2MPU02_LDO_STEP_25MV, \ 962 .linear_min_sel = S2MPU02_LDO_GROUP2_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 #define regulator_desc_s2mpu02_ldo5(num) { \ 970 .name = "LDO"#num, \ 971 .id = S2MPU02_LDO##num, \ 972 .ops = &s2mpu02_ldo_ops, \ 973 .type = REGULATOR_VOLTAGE, \ 974 .owner = THIS_MODULE, \ 975 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 976 .uV_step = S2MPU02_LDO_STEP_50MV, \ 977 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 978 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 979 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 980 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 981 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 982 .enable_mask = S2MPU02_ENABLE_MASK \ 983 } 984 985 #define regulator_desc_s2mpu02_buck1234(num) { \ 986 .name = "BUCK"#num, \ 987 .id = S2MPU02_BUCK##num, \ 988 .ops = &s2mpu02_buck_ops, \ 989 .type = REGULATOR_VOLTAGE, \ 990 .owner = THIS_MODULE, \ 991 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 992 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 993 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 994 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 995 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 996 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 997 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 998 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 999 .enable_mask = S2MPU02_ENABLE_MASK \ 1000 } 1001 #define regulator_desc_s2mpu02_buck5(num) { \ 1002 .name = "BUCK"#num, \ 1003 .id = S2MPU02_BUCK##num, \ 1004 .ops = &s2mpu02_ldo_ops, \ 1005 .type = REGULATOR_VOLTAGE, \ 1006 .owner = THIS_MODULE, \ 1007 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 1008 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 1009 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1010 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 1011 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1012 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 1013 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1014 .enable_reg = S2MPU02_REG_B5CTRL1, \ 1015 .enable_mask = S2MPU02_ENABLE_MASK \ 1016 } 1017 #define regulator_desc_s2mpu02_buck6(num) { \ 1018 .name = "BUCK"#num, \ 1019 .id = S2MPU02_BUCK##num, \ 1020 .ops = &s2mpu02_ldo_ops, \ 1021 .type = REGULATOR_VOLTAGE, \ 1022 .owner = THIS_MODULE, \ 1023 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 1024 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 1025 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1026 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 1027 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1028 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 1029 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1030 .enable_reg = S2MPU02_REG_B6CTRL1, \ 1031 .enable_mask = S2MPU02_ENABLE_MASK \ 1032 } 1033 #define regulator_desc_s2mpu02_buck7(num) { \ 1034 .name = "BUCK"#num, \ 1035 .id = S2MPU02_BUCK##num, \ 1036 .ops = &s2mpu02_ldo_ops, \ 1037 .type = REGULATOR_VOLTAGE, \ 1038 .owner = THIS_MODULE, \ 1039 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 1040 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 1041 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1042 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 1043 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1044 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 1045 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1046 .enable_reg = S2MPU02_REG_B7CTRL1, \ 1047 .enable_mask = S2MPU02_ENABLE_MASK \ 1048 } 1049 1050 static const struct regulator_desc s2mpu02_regulators[] = { 1051 regulator_desc_s2mpu02_ldo1(1), 1052 regulator_desc_s2mpu02_ldo2(2), 1053 regulator_desc_s2mpu02_ldo4(3), 1054 regulator_desc_s2mpu02_ldo5(4), 1055 regulator_desc_s2mpu02_ldo4(5), 1056 regulator_desc_s2mpu02_ldo3(6), 1057 regulator_desc_s2mpu02_ldo3(7), 1058 regulator_desc_s2mpu02_ldo4(8), 1059 regulator_desc_s2mpu02_ldo5(9), 1060 regulator_desc_s2mpu02_ldo3(10), 1061 regulator_desc_s2mpu02_ldo4(11), 1062 regulator_desc_s2mpu02_ldo5(12), 1063 regulator_desc_s2mpu02_ldo5(13), 1064 regulator_desc_s2mpu02_ldo5(14), 1065 regulator_desc_s2mpu02_ldo5(15), 1066 regulator_desc_s2mpu02_ldo5(16), 1067 regulator_desc_s2mpu02_ldo4(17), 1068 regulator_desc_s2mpu02_ldo5(18), 1069 regulator_desc_s2mpu02_ldo3(19), 1070 regulator_desc_s2mpu02_ldo4(20), 1071 regulator_desc_s2mpu02_ldo5(21), 1072 regulator_desc_s2mpu02_ldo5(22), 1073 regulator_desc_s2mpu02_ldo5(23), 1074 regulator_desc_s2mpu02_ldo4(24), 1075 regulator_desc_s2mpu02_ldo5(25), 1076 regulator_desc_s2mpu02_ldo4(26), 1077 regulator_desc_s2mpu02_ldo5(27), 1078 regulator_desc_s2mpu02_ldo5(28), 1079 regulator_desc_s2mpu02_buck1234(1), 1080 regulator_desc_s2mpu02_buck1234(2), 1081 regulator_desc_s2mpu02_buck1234(3), 1082 regulator_desc_s2mpu02_buck1234(4), 1083 regulator_desc_s2mpu02_buck5(5), 1084 regulator_desc_s2mpu02_buck6(6), 1085 regulator_desc_s2mpu02_buck7(7), 1086 }; 1087 1088 static int s2mps11_pmic_probe(struct platform_device *pdev) 1089 { 1090 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 1091 struct sec_platform_data *pdata = NULL; 1092 struct of_regulator_match *rdata = NULL; 1093 struct regulator_config config = { }; 1094 struct s2mps11_info *s2mps11; 1095 unsigned int rdev_num = 0; 1096 int i, ret = 0; 1097 const struct regulator_desc *regulators; 1098 1099 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 1100 GFP_KERNEL); 1101 if (!s2mps11) 1102 return -ENOMEM; 1103 1104 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 1105 switch (s2mps11->dev_type) { 1106 case S2MPS11X: 1107 rdev_num = ARRAY_SIZE(s2mps11_regulators); 1108 regulators = s2mps11_regulators; 1109 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators)); 1110 break; 1111 case S2MPS13X: 1112 rdev_num = ARRAY_SIZE(s2mps13_regulators); 1113 regulators = s2mps13_regulators; 1114 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators)); 1115 break; 1116 case S2MPS14X: 1117 rdev_num = ARRAY_SIZE(s2mps14_regulators); 1118 regulators = s2mps14_regulators; 1119 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators)); 1120 break; 1121 case S2MPS15X: 1122 rdev_num = ARRAY_SIZE(s2mps15_regulators); 1123 regulators = s2mps15_regulators; 1124 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators)); 1125 break; 1126 case S2MPU02: 1127 rdev_num = ARRAY_SIZE(s2mpu02_regulators); 1128 regulators = s2mpu02_regulators; 1129 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators)); 1130 break; 1131 default: 1132 dev_err(&pdev->dev, "Invalid device type: %u\n", 1133 s2mps11->dev_type); 1134 return -EINVAL; 1135 } 1136 1137 s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num, 1138 sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL); 1139 if (!s2mps11->ext_control_gpiod) 1140 return -ENOMEM; 1141 1142 if (!iodev->dev->of_node) { 1143 if (iodev->pdata) { 1144 pdata = iodev->pdata; 1145 goto common_reg; 1146 } else { 1147 dev_err(pdev->dev.parent, 1148 "Platform data or DT node not supplied\n"); 1149 return -ENODEV; 1150 } 1151 } 1152 1153 rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL); 1154 if (!rdata) 1155 return -ENOMEM; 1156 1157 for (i = 0; i < rdev_num; i++) 1158 rdata[i].name = regulators[i].name; 1159 1160 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num); 1161 if (ret) 1162 goto out; 1163 1164 common_reg: 1165 platform_set_drvdata(pdev, s2mps11); 1166 1167 config.dev = &pdev->dev; 1168 config.regmap = iodev->regmap_pmic; 1169 config.driver_data = s2mps11; 1170 for (i = 0; i < rdev_num; i++) { 1171 struct regulator_dev *regulator; 1172 1173 if (pdata) { 1174 config.init_data = pdata->regulators[i].initdata; 1175 config.of_node = pdata->regulators[i].reg_node; 1176 } else { 1177 config.init_data = rdata[i].init_data; 1178 config.of_node = rdata[i].of_node; 1179 } 1180 config.ena_gpiod = s2mps11->ext_control_gpiod[i]; 1181 /* 1182 * Hand the GPIO descriptor management over to the regulator 1183 * core, remove it from devres management. 1184 */ 1185 if (config.ena_gpiod) 1186 devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod); 1187 regulator = devm_regulator_register(&pdev->dev, 1188 ®ulators[i], &config); 1189 if (IS_ERR(regulator)) { 1190 ret = PTR_ERR(regulator); 1191 dev_err(&pdev->dev, "regulator init failed for %d\n", 1192 i); 1193 goto out; 1194 } 1195 1196 if (s2mps11->ext_control_gpiod[i]) { 1197 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1198 regulator); 1199 if (ret < 0) { 1200 dev_err(&pdev->dev, 1201 "failed to enable GPIO control over %s: %d\n", 1202 regulator->desc->name, ret); 1203 goto out; 1204 } 1205 } 1206 } 1207 1208 out: 1209 kfree(rdata); 1210 1211 return ret; 1212 } 1213 1214 static const struct platform_device_id s2mps11_pmic_id[] = { 1215 { "s2mps11-regulator", S2MPS11X}, 1216 { "s2mps13-regulator", S2MPS13X}, 1217 { "s2mps14-regulator", S2MPS14X}, 1218 { "s2mps15-regulator", S2MPS15X}, 1219 { "s2mpu02-regulator", S2MPU02}, 1220 { }, 1221 }; 1222 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1223 1224 static struct platform_driver s2mps11_pmic_driver = { 1225 .driver = { 1226 .name = "s2mps11-pmic", 1227 }, 1228 .probe = s2mps11_pmic_probe, 1229 .id_table = s2mps11_pmic_id, 1230 }; 1231 1232 module_platform_driver(s2mps11_pmic_driver); 1233 1234 /* Module information */ 1235 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1236 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver"); 1237 MODULE_LICENSE("GPL"); 1238