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.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/of_gpio.h> 18 #include <linux/mfd/samsung/core.h> 19 #include <linux/mfd/samsung/s2mps11.h> 20 #include <linux/mfd/samsung/s2mps13.h> 21 #include <linux/mfd/samsung/s2mps14.h> 22 #include <linux/mfd/samsung/s2mps15.h> 23 #include <linux/mfd/samsung/s2mpu02.h> 24 25 /* The highest number of possible regulators for supported devices. */ 26 #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX 27 struct s2mps11_info { 28 int ramp_delay2; 29 int ramp_delay34; 30 int ramp_delay5; 31 int ramp_delay16; 32 int ramp_delay7810; 33 int ramp_delay9; 34 35 enum sec_device_type dev_type; 36 37 /* 38 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether 39 * the suspend mode was enabled. 40 */ 41 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX); 42 43 /* 44 * Array (size: number of regulators) with GPIO-s for external 45 * sleep control. 46 */ 47 int *ext_control_gpio; 48 }; 49 50 static int get_ramp_delay(int ramp_delay) 51 { 52 unsigned char cnt = 0; 53 54 ramp_delay /= 6250; 55 56 while (true) { 57 ramp_delay = ramp_delay >> 1; 58 if (ramp_delay == 0) 59 break; 60 cnt++; 61 } 62 63 if (cnt > 3) 64 cnt = 3; 65 66 return cnt; 67 } 68 69 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, 70 unsigned int old_selector, 71 unsigned int new_selector) 72 { 73 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 74 unsigned int ramp_delay = 0; 75 int old_volt, new_volt; 76 77 switch (rdev_get_id(rdev)) { 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 ret; 116 117 switch (rdev_get_id(rdev)) { 118 case S2MPS11_BUCK1: 119 if (ramp_delay > s2mps11->ramp_delay16) 120 s2mps11->ramp_delay16 = ramp_delay; 121 else 122 ramp_delay = s2mps11->ramp_delay16; 123 124 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 125 break; 126 case S2MPS11_BUCK2: 127 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; 128 if (!ramp_delay) { 129 ramp_enable = 0; 130 break; 131 } 132 133 s2mps11->ramp_delay2 = ramp_delay; 134 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; 135 ramp_reg = S2MPS11_REG_RAMP; 136 break; 137 case S2MPS11_BUCK3: 138 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; 139 if (!ramp_delay) { 140 ramp_enable = 0; 141 break; 142 } 143 144 if (ramp_delay > s2mps11->ramp_delay34) 145 s2mps11->ramp_delay34 = ramp_delay; 146 else 147 ramp_delay = s2mps11->ramp_delay34; 148 149 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 150 ramp_reg = S2MPS11_REG_RAMP; 151 break; 152 case S2MPS11_BUCK4: 153 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; 154 if (!ramp_delay) { 155 ramp_enable = 0; 156 break; 157 } 158 159 if (ramp_delay > s2mps11->ramp_delay34) 160 s2mps11->ramp_delay34 = ramp_delay; 161 else 162 ramp_delay = s2mps11->ramp_delay34; 163 164 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; 165 ramp_reg = S2MPS11_REG_RAMP; 166 break; 167 case S2MPS11_BUCK5: 168 s2mps11->ramp_delay5 = ramp_delay; 169 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; 170 break; 171 case S2MPS11_BUCK6: 172 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; 173 if (!ramp_delay) { 174 ramp_enable = 0; 175 break; 176 } 177 178 if (ramp_delay > s2mps11->ramp_delay16) 179 s2mps11->ramp_delay16 = ramp_delay; 180 else 181 ramp_delay = s2mps11->ramp_delay16; 182 183 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; 184 break; 185 case S2MPS11_BUCK7: 186 case S2MPS11_BUCK8: 187 case S2MPS11_BUCK10: 188 if (ramp_delay > s2mps11->ramp_delay7810) 189 s2mps11->ramp_delay7810 = ramp_delay; 190 else 191 ramp_delay = s2mps11->ramp_delay7810; 192 193 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; 194 break; 195 case S2MPS11_BUCK9: 196 s2mps11->ramp_delay9 = ramp_delay; 197 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; 198 break; 199 default: 200 return 0; 201 } 202 203 if (!ramp_enable) 204 goto ramp_disable; 205 206 /* Ramp delay can be enabled/disabled only for buck[2346] */ 207 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 && 208 rdev_get_id(rdev) <= S2MPS11_BUCK4) || 209 rdev_get_id(rdev) == 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_50_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_6_25_MV), 377 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_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 unsigned int val; 508 509 switch (s2mps11->dev_type) { 510 case S2MPS13X: 511 case S2MPS14X: 512 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 513 val = S2MPS14_ENABLE_SUSPEND; 514 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) 515 val = S2MPS14_ENABLE_EXT_CONTROL; 516 else 517 val = rdev->desc->enable_mask; 518 break; 519 case S2MPU02: 520 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) 521 val = S2MPU02_ENABLE_SUSPEND; 522 else 523 val = rdev->desc->enable_mask; 524 break; 525 default: 526 return -EINVAL; 527 } 528 529 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 530 rdev->desc->enable_mask, val); 531 } 532 533 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) 534 { 535 int ret; 536 unsigned int val, state; 537 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); 538 int rdev_id = rdev_get_id(rdev); 539 540 /* Below LDO should be always on or does not support suspend mode. */ 541 switch (s2mps11->dev_type) { 542 case S2MPS13X: 543 case S2MPS14X: 544 switch (rdev_id) { 545 case S2MPS14_LDO3: 546 return 0; 547 default: 548 state = S2MPS14_ENABLE_SUSPEND; 549 break; 550 } 551 break; 552 case S2MPU02: 553 switch (rdev_id) { 554 case S2MPU02_LDO13: 555 case S2MPU02_LDO14: 556 case S2MPU02_LDO15: 557 case S2MPU02_LDO17: 558 case S2MPU02_BUCK7: 559 state = S2MPU02_DISABLE_SUSPEND; 560 break; 561 default: 562 state = S2MPU02_ENABLE_SUSPEND; 563 break; 564 } 565 break; 566 default: 567 return -EINVAL; 568 } 569 570 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); 571 if (ret < 0) 572 return ret; 573 574 set_bit(rdev_get_id(rdev), s2mps11->suspend_state); 575 /* 576 * Don't enable suspend mode if regulator is already disabled because 577 * this would effectively for a short time turn on the regulator after 578 * resuming. 579 * However we still want to toggle the suspend_state bit for regulator 580 * in case if it got enabled before suspending the system. 581 */ 582 if (!(val & rdev->desc->enable_mask)) 583 return 0; 584 585 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 586 rdev->desc->enable_mask, state); 587 } 588 589 static const struct regulator_ops s2mps14_reg_ops = { 590 .list_voltage = regulator_list_voltage_linear, 591 .map_voltage = regulator_map_voltage_linear, 592 .is_enabled = regulator_is_enabled_regmap, 593 .enable = s2mps14_regulator_enable, 594 .disable = regulator_disable_regmap, 595 .get_voltage_sel = regulator_get_voltage_sel_regmap, 596 .set_voltage_sel = regulator_set_voltage_sel_regmap, 597 .set_voltage_time_sel = regulator_set_voltage_time_sel, 598 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 599 }; 600 601 #define regulator_desc_s2mps14_ldo(num, min, step) { \ 602 .name = "LDO"#num, \ 603 .id = S2MPS14_LDO##num, \ 604 .ops = &s2mps14_reg_ops, \ 605 .type = REGULATOR_VOLTAGE, \ 606 .owner = THIS_MODULE, \ 607 .min_uV = min, \ 608 .uV_step = step, \ 609 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ 610 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ 611 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ 612 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ 613 .enable_mask = S2MPS14_ENABLE_MASK \ 614 } 615 616 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \ 617 .name = "BUCK"#num, \ 618 .id = S2MPS14_BUCK##num, \ 619 .ops = &s2mps14_reg_ops, \ 620 .type = REGULATOR_VOLTAGE, \ 621 .owner = THIS_MODULE, \ 622 .min_uV = min, \ 623 .uV_step = step, \ 624 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ 625 .linear_min_sel = min_sel, \ 626 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ 627 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ 628 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ 629 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ 630 .enable_mask = S2MPS14_ENABLE_MASK \ 631 } 632 633 static const struct regulator_desc s2mps14_regulators[] = { 634 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), 635 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), 636 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), 637 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), 638 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), 639 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), 640 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), 641 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), 642 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), 643 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), 644 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), 645 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), 646 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), 647 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), 648 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), 649 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), 650 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), 651 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), 652 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), 653 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), 654 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), 655 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), 656 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), 657 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), 658 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), 659 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV, 660 S2MPS14_BUCK1235_START_SEL), 661 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV, 662 S2MPS14_BUCK1235_START_SEL), 663 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV, 664 S2MPS14_BUCK1235_START_SEL), 665 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV, 666 S2MPS14_BUCK4_START_SEL), 667 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV, 668 S2MPS14_BUCK1235_START_SEL), 669 }; 670 671 static const struct regulator_ops s2mps15_reg_ldo_ops = { 672 .list_voltage = regulator_list_voltage_linear_range, 673 .map_voltage = regulator_map_voltage_linear_range, 674 .is_enabled = regulator_is_enabled_regmap, 675 .enable = regulator_enable_regmap, 676 .disable = regulator_disable_regmap, 677 .get_voltage_sel = regulator_get_voltage_sel_regmap, 678 .set_voltage_sel = regulator_set_voltage_sel_regmap, 679 }; 680 681 static const struct regulator_ops s2mps15_reg_buck_ops = { 682 .list_voltage = regulator_list_voltage_linear_range, 683 .map_voltage = regulator_map_voltage_linear_range, 684 .is_enabled = regulator_is_enabled_regmap, 685 .enable = regulator_enable_regmap, 686 .disable = regulator_disable_regmap, 687 .get_voltage_sel = regulator_get_voltage_sel_regmap, 688 .set_voltage_sel = regulator_set_voltage_sel_regmap, 689 .set_voltage_time_sel = regulator_set_voltage_time_sel, 690 }; 691 692 #define regulator_desc_s2mps15_ldo(num, range) { \ 693 .name = "LDO"#num, \ 694 .id = S2MPS15_LDO##num, \ 695 .ops = &s2mps15_reg_ldo_ops, \ 696 .type = REGULATOR_VOLTAGE, \ 697 .owner = THIS_MODULE, \ 698 .linear_ranges = range, \ 699 .n_linear_ranges = ARRAY_SIZE(range), \ 700 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \ 701 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \ 702 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \ 703 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \ 704 .enable_mask = S2MPS15_ENABLE_MASK \ 705 } 706 707 #define regulator_desc_s2mps15_buck(num, range) { \ 708 .name = "BUCK"#num, \ 709 .id = S2MPS15_BUCK##num, \ 710 .ops = &s2mps15_reg_buck_ops, \ 711 .type = REGULATOR_VOLTAGE, \ 712 .owner = THIS_MODULE, \ 713 .linear_ranges = range, \ 714 .n_linear_ranges = ARRAY_SIZE(range), \ 715 .ramp_delay = 12500, \ 716 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \ 717 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \ 718 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \ 719 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \ 720 .enable_mask = S2MPS15_ENABLE_MASK \ 721 } 722 723 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ 724 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { 725 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), 726 }; 727 728 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ 729 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { 730 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), 731 }; 732 733 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ 734 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { 735 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), 736 }; 737 738 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ 739 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { 740 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), 741 }; 742 743 /* voltage range for s2mps15 LDO 1 */ 744 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { 745 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), 746 }; 747 748 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ 749 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { 750 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), 751 }; 752 753 /* voltage range for s2mps15 BUCK 8, 9 and 10 */ 754 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { 755 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), 756 }; 757 758 static const struct regulator_desc s2mps15_regulators[] = { 759 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5), 760 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2), 761 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1), 762 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3), 763 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1), 764 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2), 765 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4), 766 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4), 767 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4), 768 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4), 769 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3), 770 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3), 771 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3), 772 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2), 773 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1), 774 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1), 775 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2), 776 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1), 777 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2), 778 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1), 779 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2), 780 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3), 781 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1), 782 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2), 783 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2), 784 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3), 785 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1), 786 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1), 787 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1), 788 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1), 789 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1), 790 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1), 791 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1), 792 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1), 793 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2), 794 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2), 795 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2), 796 }; 797 798 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, 799 struct regulator_dev *rdev) 800 { 801 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, 802 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL); 803 } 804 805 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 806 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) 807 { 808 int *gpio = s2mps11->ext_control_gpio; 809 unsigned int i; 810 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, 811 S2MPS14_LDO12 }; 812 813 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) { 814 unsigned int reg = valid_regulators[i]; 815 816 if (!rdata[reg].init_data || !rdata[reg].of_node) 817 continue; 818 819 gpio[reg] = of_get_named_gpio(rdata[reg].of_node, 820 "samsung,ext-control-gpios", 0); 821 if (gpio_is_valid(gpio[reg])) 822 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", 823 gpio[reg], reg, rdata[reg].name); 824 } 825 } 826 827 static int s2mps11_pmic_dt_parse(struct platform_device *pdev, 828 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11, 829 unsigned int rdev_num) 830 { 831 struct device_node *reg_np; 832 833 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); 834 if (!reg_np) { 835 dev_err(&pdev->dev, "could not find regulators sub-node\n"); 836 return -EINVAL; 837 } 838 839 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); 840 if (s2mps11->dev_type == S2MPS14X) 841 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); 842 843 of_node_put(reg_np); 844 845 return 0; 846 } 847 848 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) 849 { 850 unsigned int ramp_val, ramp_shift, ramp_reg; 851 852 switch (rdev_get_id(rdev)) { 853 case S2MPU02_BUCK1: 854 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT; 855 break; 856 case S2MPU02_BUCK2: 857 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT; 858 break; 859 case S2MPU02_BUCK3: 860 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT; 861 break; 862 case S2MPU02_BUCK4: 863 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT; 864 break; 865 default: 866 return 0; 867 } 868 ramp_reg = S2MPU02_REG_RAMP1; 869 ramp_val = get_ramp_delay(ramp_delay); 870 871 return regmap_update_bits(rdev->regmap, ramp_reg, 872 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift, 873 ramp_val << ramp_shift); 874 } 875 876 static const struct regulator_ops s2mpu02_ldo_ops = { 877 .list_voltage = regulator_list_voltage_linear, 878 .map_voltage = regulator_map_voltage_linear, 879 .is_enabled = regulator_is_enabled_regmap, 880 .enable = s2mps14_regulator_enable, 881 .disable = regulator_disable_regmap, 882 .get_voltage_sel = regulator_get_voltage_sel_regmap, 883 .set_voltage_sel = regulator_set_voltage_sel_regmap, 884 .set_voltage_time_sel = regulator_set_voltage_time_sel, 885 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 886 }; 887 888 static const struct regulator_ops s2mpu02_buck_ops = { 889 .list_voltage = regulator_list_voltage_linear, 890 .map_voltage = regulator_map_voltage_linear, 891 .is_enabled = regulator_is_enabled_regmap, 892 .enable = s2mps14_regulator_enable, 893 .disable = regulator_disable_regmap, 894 .get_voltage_sel = regulator_get_voltage_sel_regmap, 895 .set_voltage_sel = regulator_set_voltage_sel_regmap, 896 .set_voltage_time_sel = regulator_set_voltage_time_sel, 897 .set_suspend_disable = s2mps14_regulator_set_suspend_disable, 898 .set_ramp_delay = s2mpu02_set_ramp_delay, 899 }; 900 901 #define regulator_desc_s2mpu02_ldo1(num) { \ 902 .name = "LDO"#num, \ 903 .id = S2MPU02_LDO##num, \ 904 .ops = &s2mpu02_ldo_ops, \ 905 .type = REGULATOR_VOLTAGE, \ 906 .owner = THIS_MODULE, \ 907 .min_uV = S2MPU02_LDO_MIN_900MV, \ 908 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 909 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 910 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 911 .vsel_reg = S2MPU02_REG_L1CTRL, \ 912 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 913 .enable_reg = S2MPU02_REG_L1CTRL, \ 914 .enable_mask = S2MPU02_ENABLE_MASK \ 915 } 916 #define regulator_desc_s2mpu02_ldo2(num) { \ 917 .name = "LDO"#num, \ 918 .id = S2MPU02_LDO##num, \ 919 .ops = &s2mpu02_ldo_ops, \ 920 .type = REGULATOR_VOLTAGE, \ 921 .owner = THIS_MODULE, \ 922 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 923 .uV_step = S2MPU02_LDO_STEP_25MV, \ 924 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 925 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 926 .vsel_reg = S2MPU02_REG_L2CTRL1, \ 927 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 928 .enable_reg = S2MPU02_REG_L2CTRL1, \ 929 .enable_mask = S2MPU02_ENABLE_MASK \ 930 } 931 #define regulator_desc_s2mpu02_ldo3(num) { \ 932 .name = "LDO"#num, \ 933 .id = S2MPU02_LDO##num, \ 934 .ops = &s2mpu02_ldo_ops, \ 935 .type = REGULATOR_VOLTAGE, \ 936 .owner = THIS_MODULE, \ 937 .min_uV = S2MPU02_LDO_MIN_900MV, \ 938 .uV_step = S2MPU02_LDO_STEP_12_5MV, \ 939 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \ 940 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 941 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 942 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 943 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 944 .enable_mask = S2MPU02_ENABLE_MASK \ 945 } 946 #define regulator_desc_s2mpu02_ldo4(num) { \ 947 .name = "LDO"#num, \ 948 .id = S2MPU02_LDO##num, \ 949 .ops = &s2mpu02_ldo_ops, \ 950 .type = REGULATOR_VOLTAGE, \ 951 .owner = THIS_MODULE, \ 952 .min_uV = S2MPU02_LDO_MIN_1050MV, \ 953 .uV_step = S2MPU02_LDO_STEP_25MV, \ 954 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \ 955 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 956 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 957 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 958 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 959 .enable_mask = S2MPU02_ENABLE_MASK \ 960 } 961 #define regulator_desc_s2mpu02_ldo5(num) { \ 962 .name = "LDO"#num, \ 963 .id = S2MPU02_LDO##num, \ 964 .ops = &s2mpu02_ldo_ops, \ 965 .type = REGULATOR_VOLTAGE, \ 966 .owner = THIS_MODULE, \ 967 .min_uV = S2MPU02_LDO_MIN_1600MV, \ 968 .uV_step = S2MPU02_LDO_STEP_50MV, \ 969 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \ 970 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \ 971 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \ 972 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \ 973 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \ 974 .enable_mask = S2MPU02_ENABLE_MASK \ 975 } 976 977 #define regulator_desc_s2mpu02_buck1234(num) { \ 978 .name = "BUCK"#num, \ 979 .id = S2MPU02_BUCK##num, \ 980 .ops = &s2mpu02_buck_ops, \ 981 .type = REGULATOR_VOLTAGE, \ 982 .owner = THIS_MODULE, \ 983 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \ 984 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \ 985 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 986 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \ 987 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 988 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \ 989 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 990 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \ 991 .enable_mask = S2MPU02_ENABLE_MASK \ 992 } 993 #define regulator_desc_s2mpu02_buck5(num) { \ 994 .name = "BUCK"#num, \ 995 .id = S2MPU02_BUCK##num, \ 996 .ops = &s2mpu02_ldo_ops, \ 997 .type = REGULATOR_VOLTAGE, \ 998 .owner = THIS_MODULE, \ 999 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \ 1000 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \ 1001 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1002 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \ 1003 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1004 .vsel_reg = S2MPU02_REG_B5CTRL2, \ 1005 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1006 .enable_reg = S2MPU02_REG_B5CTRL1, \ 1007 .enable_mask = S2MPU02_ENABLE_MASK \ 1008 } 1009 #define regulator_desc_s2mpu02_buck6(num) { \ 1010 .name = "BUCK"#num, \ 1011 .id = S2MPU02_BUCK##num, \ 1012 .ops = &s2mpu02_ldo_ops, \ 1013 .type = REGULATOR_VOLTAGE, \ 1014 .owner = THIS_MODULE, \ 1015 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \ 1016 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \ 1017 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1018 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \ 1019 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1020 .vsel_reg = S2MPU02_REG_B6CTRL2, \ 1021 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1022 .enable_reg = S2MPU02_REG_B6CTRL1, \ 1023 .enable_mask = S2MPU02_ENABLE_MASK \ 1024 } 1025 #define regulator_desc_s2mpu02_buck7(num) { \ 1026 .name = "BUCK"#num, \ 1027 .id = S2MPU02_BUCK##num, \ 1028 .ops = &s2mpu02_ldo_ops, \ 1029 .type = REGULATOR_VOLTAGE, \ 1030 .owner = THIS_MODULE, \ 1031 .min_uV = S2MPU02_BUCK7_MIN_900MV, \ 1032 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \ 1033 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \ 1034 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \ 1035 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \ 1036 .vsel_reg = S2MPU02_REG_B7CTRL2, \ 1037 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \ 1038 .enable_reg = S2MPU02_REG_B7CTRL1, \ 1039 .enable_mask = S2MPU02_ENABLE_MASK \ 1040 } 1041 1042 static const struct regulator_desc s2mpu02_regulators[] = { 1043 regulator_desc_s2mpu02_ldo1(1), 1044 regulator_desc_s2mpu02_ldo2(2), 1045 regulator_desc_s2mpu02_ldo4(3), 1046 regulator_desc_s2mpu02_ldo5(4), 1047 regulator_desc_s2mpu02_ldo4(5), 1048 regulator_desc_s2mpu02_ldo3(6), 1049 regulator_desc_s2mpu02_ldo3(7), 1050 regulator_desc_s2mpu02_ldo4(8), 1051 regulator_desc_s2mpu02_ldo5(9), 1052 regulator_desc_s2mpu02_ldo3(10), 1053 regulator_desc_s2mpu02_ldo4(11), 1054 regulator_desc_s2mpu02_ldo5(12), 1055 regulator_desc_s2mpu02_ldo5(13), 1056 regulator_desc_s2mpu02_ldo5(14), 1057 regulator_desc_s2mpu02_ldo5(15), 1058 regulator_desc_s2mpu02_ldo5(16), 1059 regulator_desc_s2mpu02_ldo4(17), 1060 regulator_desc_s2mpu02_ldo5(18), 1061 regulator_desc_s2mpu02_ldo3(19), 1062 regulator_desc_s2mpu02_ldo4(20), 1063 regulator_desc_s2mpu02_ldo5(21), 1064 regulator_desc_s2mpu02_ldo5(22), 1065 regulator_desc_s2mpu02_ldo5(23), 1066 regulator_desc_s2mpu02_ldo4(24), 1067 regulator_desc_s2mpu02_ldo5(25), 1068 regulator_desc_s2mpu02_ldo4(26), 1069 regulator_desc_s2mpu02_ldo5(27), 1070 regulator_desc_s2mpu02_ldo5(28), 1071 regulator_desc_s2mpu02_buck1234(1), 1072 regulator_desc_s2mpu02_buck1234(2), 1073 regulator_desc_s2mpu02_buck1234(3), 1074 regulator_desc_s2mpu02_buck1234(4), 1075 regulator_desc_s2mpu02_buck5(5), 1076 regulator_desc_s2mpu02_buck6(6), 1077 regulator_desc_s2mpu02_buck7(7), 1078 }; 1079 1080 static int s2mps11_pmic_probe(struct platform_device *pdev) 1081 { 1082 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 1083 struct sec_platform_data *pdata = NULL; 1084 struct of_regulator_match *rdata = NULL; 1085 struct regulator_config config = { }; 1086 struct s2mps11_info *s2mps11; 1087 unsigned int rdev_num = 0; 1088 int i, ret = 0; 1089 const struct regulator_desc *regulators; 1090 1091 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), 1092 GFP_KERNEL); 1093 if (!s2mps11) 1094 return -ENOMEM; 1095 1096 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; 1097 switch (s2mps11->dev_type) { 1098 case S2MPS11X: 1099 rdev_num = ARRAY_SIZE(s2mps11_regulators); 1100 regulators = s2mps11_regulators; 1101 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators)); 1102 break; 1103 case S2MPS13X: 1104 rdev_num = ARRAY_SIZE(s2mps13_regulators); 1105 regulators = s2mps13_regulators; 1106 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators)); 1107 break; 1108 case S2MPS14X: 1109 rdev_num = ARRAY_SIZE(s2mps14_regulators); 1110 regulators = s2mps14_regulators; 1111 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators)); 1112 break; 1113 case S2MPS15X: 1114 rdev_num = ARRAY_SIZE(s2mps15_regulators); 1115 regulators = s2mps15_regulators; 1116 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators)); 1117 break; 1118 case S2MPU02: 1119 rdev_num = ARRAY_SIZE(s2mpu02_regulators); 1120 regulators = s2mpu02_regulators; 1121 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators)); 1122 break; 1123 default: 1124 dev_err(&pdev->dev, "Invalid device type: %u\n", 1125 s2mps11->dev_type); 1126 return -EINVAL; 1127 } 1128 1129 s2mps11->ext_control_gpio = devm_kmalloc_array(&pdev->dev, 1130 rdev_num, sizeof(*s2mps11->ext_control_gpio), 1131 GFP_KERNEL); 1132 if (!s2mps11->ext_control_gpio) 1133 return -ENOMEM; 1134 /* 1135 * 0 is a valid GPIO so initialize all GPIO-s to negative value 1136 * to indicate that external control won't be used for this regulator. 1137 */ 1138 for (i = 0; i < rdev_num; i++) 1139 s2mps11->ext_control_gpio[i] = -EINVAL; 1140 1141 if (!iodev->dev->of_node) { 1142 if (iodev->pdata) { 1143 pdata = iodev->pdata; 1144 goto common_reg; 1145 } else { 1146 dev_err(pdev->dev.parent, 1147 "Platform data or DT node not supplied\n"); 1148 return -ENODEV; 1149 } 1150 } 1151 1152 rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL); 1153 if (!rdata) 1154 return -ENOMEM; 1155 1156 for (i = 0; i < rdev_num; i++) 1157 rdata[i].name = regulators[i].name; 1158 1159 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num); 1160 if (ret) 1161 goto out; 1162 1163 common_reg: 1164 platform_set_drvdata(pdev, s2mps11); 1165 1166 config.dev = &pdev->dev; 1167 config.regmap = iodev->regmap_pmic; 1168 config.driver_data = s2mps11; 1169 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; 1170 config.ena_gpio_initialized = true; 1171 for (i = 0; i < rdev_num; i++) { 1172 struct regulator_dev *regulator; 1173 1174 if (pdata) { 1175 config.init_data = pdata->regulators[i].initdata; 1176 config.of_node = pdata->regulators[i].reg_node; 1177 } else { 1178 config.init_data = rdata[i].init_data; 1179 config.of_node = rdata[i].of_node; 1180 } 1181 config.ena_gpio = s2mps11->ext_control_gpio[i]; 1182 1183 regulator = devm_regulator_register(&pdev->dev, 1184 ®ulators[i], &config); 1185 if (IS_ERR(regulator)) { 1186 ret = PTR_ERR(regulator); 1187 dev_err(&pdev->dev, "regulator init failed for %d\n", 1188 i); 1189 goto out; 1190 } 1191 1192 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { 1193 ret = s2mps14_pmic_enable_ext_control(s2mps11, 1194 regulator); 1195 if (ret < 0) { 1196 dev_err(&pdev->dev, 1197 "failed to enable GPIO control over %s: %d\n", 1198 regulator->desc->name, ret); 1199 goto out; 1200 } 1201 } 1202 } 1203 1204 out: 1205 kfree(rdata); 1206 1207 return ret; 1208 } 1209 1210 static const struct platform_device_id s2mps11_pmic_id[] = { 1211 { "s2mps11-regulator", S2MPS11X}, 1212 { "s2mps13-regulator", S2MPS13X}, 1213 { "s2mps14-regulator", S2MPS14X}, 1214 { "s2mps15-regulator", S2MPS15X}, 1215 { "s2mpu02-regulator", S2MPU02}, 1216 { }, 1217 }; 1218 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id); 1219 1220 static struct platform_driver s2mps11_pmic_driver = { 1221 .driver = { 1222 .name = "s2mps11-pmic", 1223 }, 1224 .probe = s2mps11_pmic_probe, 1225 .id_table = s2mps11_pmic_id, 1226 }; 1227 1228 module_platform_driver(s2mps11_pmic_driver); 1229 1230 /* Module information */ 1231 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); 1232 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver"); 1233 MODULE_LICENSE("GPL"); 1234