Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2018 Samsung Electronics |
| 4 | * Jaehoon Chung <jh80.chung@samsung.com> |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <fdtdec.h> |
| 9 | #include <errno.h> |
| 10 | #include <dm.h> |
| 11 | #include <i2c.h> |
Simon Glass | dbd7954 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 12 | #include <linux/delay.h> |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 13 | #include <power/pmic.h> |
| 14 | #include <power/regulator.h> |
| 15 | #include <power/s2mps11.h> |
| 16 | |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 17 | #define MODE(_id, _val, _name) { \ |
| 18 | .id = _id, \ |
| 19 | .register_value = _val, \ |
| 20 | .name = _name, \ |
| 21 | } |
| 22 | |
| 23 | /* BUCK : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 */ |
| 24 | static struct dm_regulator_mode s2mps11_buck_modes[] = { |
| 25 | MODE(OP_OFF, S2MPS11_BUCK_MODE_OFF, "OFF"), |
| 26 | MODE(OP_STANDBY, S2MPS11_BUCK_MODE_STANDBY, "ON/OFF"), |
| 27 | MODE(OP_ON, S2MPS11_BUCK_MODE_STANDBY, "ON"), |
| 28 | }; |
| 29 | |
| 30 | static struct dm_regulator_mode s2mps11_ldo_modes[] = { |
| 31 | MODE(OP_OFF, S2MPS11_LDO_MODE_OFF, "OFF"), |
| 32 | MODE(OP_STANDBY, S2MPS11_LDO_MODE_STANDBY, "ON/OFF"), |
| 33 | MODE(OP_STANDBY_LPM, S2MPS11_LDO_MODE_STANDBY_LPM, "ON/LPM"), |
| 34 | MODE(OP_ON, S2MPS11_LDO_MODE_ON, "ON"), |
| 35 | }; |
| 36 | |
| 37 | static const char s2mps11_buck_ctrl[] = { |
| 38 | 0xff, 0x25, 0x27, 0x29, 0x2b, 0x2d, 0x33, 0x35, 0x37, 0x39, 0x3b |
| 39 | }; |
| 40 | |
| 41 | static const char s2mps11_buck_out[] = { |
| 42 | 0xff, 0x26, 0x28, 0x2a, 0x2c, 0x2f, 0x34, 0x36, 0x38, 0x3a, 0x3c |
| 43 | }; |
| 44 | |
| 45 | static int s2mps11_buck_hex2volt(int buck, int hex) |
| 46 | { |
| 47 | unsigned int uV = 0; |
| 48 | |
| 49 | if (hex < 0) |
| 50 | goto bad; |
| 51 | |
| 52 | switch (buck) { |
| 53 | case 7: |
| 54 | case 8: |
| 55 | case 10: |
| 56 | if (hex > S2MPS11_BUCK7_8_10_VOLT_MAX_HEX) |
| 57 | goto bad; |
| 58 | |
| 59 | uV = hex * S2MPS11_BUCK_HSTEP + S2MPS11_BUCK_UV_HMIN; |
| 60 | break; |
| 61 | case 9: |
| 62 | if (hex > S2MPS11_BUCK9_VOLT_MAX_HEX) |
| 63 | goto bad; |
| 64 | uV = hex * S2MPS11_BUCK9_STEP * 2 + S2MPS11_BUCK9_UV_MIN; |
| 65 | break; |
| 66 | default: |
| 67 | if (buck == 5 && hex > S2MPS11_BUCK5_VOLT_MAX_HEX) |
| 68 | goto bad; |
| 69 | else if (buck != 5 && hex > S2MPS11_BUCK_VOLT_MAX_HEX) |
| 70 | goto bad; |
| 71 | |
| 72 | uV = hex * S2MPS11_BUCK_LSTEP + S2MPS11_BUCK_UV_MIN; |
| 73 | break; |
| 74 | } |
| 75 | |
| 76 | return uV; |
| 77 | bad: |
| 78 | pr_err("Value: %#x is wrong for BUCK%d", hex, buck); |
| 79 | return -EINVAL; |
| 80 | } |
| 81 | |
| 82 | static int s2mps11_buck_volt2hex(int buck, int uV) |
| 83 | { |
| 84 | int hex; |
| 85 | |
| 86 | switch (buck) { |
| 87 | case 7: |
| 88 | case 8: |
| 89 | case 10: |
| 90 | hex = (uV - S2MPS11_BUCK_UV_HMIN) / S2MPS11_BUCK_HSTEP; |
| 91 | if (hex > S2MPS11_BUCK7_8_10_VOLT_MAX_HEX) |
| 92 | goto bad; |
| 93 | |
| 94 | break; |
| 95 | case 9: |
| 96 | hex = (uV - S2MPS11_BUCK9_UV_MIN) / S2MPS11_BUCK9_STEP; |
| 97 | if (hex > S2MPS11_BUCK9_VOLT_MAX_HEX) |
| 98 | goto bad; |
| 99 | break; |
| 100 | default: |
| 101 | hex = (uV - S2MPS11_BUCK_UV_MIN) / S2MPS11_BUCK_LSTEP; |
| 102 | if (buck == 5 && hex > S2MPS11_BUCK5_VOLT_MAX_HEX) |
| 103 | goto bad; |
| 104 | else if (buck != 5 && hex > S2MPS11_BUCK_VOLT_MAX_HEX) |
| 105 | goto bad; |
| 106 | break; |
| 107 | }; |
| 108 | |
| 109 | if (hex >= 0) |
| 110 | return hex; |
| 111 | |
| 112 | bad: |
| 113 | pr_err("Value: %d uV is wrong for BUCK%d", uV, buck); |
| 114 | return -EINVAL; |
| 115 | } |
| 116 | |
| 117 | static int s2mps11_buck_val(struct udevice *dev, int op, int *uV) |
| 118 | { |
| 119 | int hex, buck, ret; |
| 120 | u32 mask, addr; |
| 121 | u8 val; |
| 122 | |
| 123 | buck = dev->driver_data; |
| 124 | if (buck < 1 || buck > S2MPS11_BUCK_NUM) { |
| 125 | pr_err("Wrong buck number: %d\n", buck); |
| 126 | return -EINVAL; |
| 127 | } |
| 128 | |
| 129 | if (op == PMIC_OP_GET) |
| 130 | *uV = 0; |
| 131 | |
| 132 | addr = s2mps11_buck_out[buck]; |
| 133 | |
| 134 | switch (buck) { |
| 135 | case 9: |
| 136 | mask = S2MPS11_BUCK9_VOLT_MASK; |
| 137 | break; |
| 138 | default: |
| 139 | mask = S2MPS11_BUCK_VOLT_MASK; |
| 140 | break; |
| 141 | } |
| 142 | |
| 143 | ret = pmic_read(dev->parent, addr, &val, 1); |
| 144 | if (ret) |
| 145 | return ret; |
| 146 | |
| 147 | if (op == PMIC_OP_GET) { |
| 148 | val &= mask; |
| 149 | ret = s2mps11_buck_hex2volt(buck, val); |
| 150 | if (ret < 0) |
| 151 | return ret; |
| 152 | *uV = ret; |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | hex = s2mps11_buck_volt2hex(buck, *uV); |
| 157 | if (hex < 0) |
| 158 | return hex; |
| 159 | |
| 160 | val &= ~mask; |
| 161 | val |= hex; |
| 162 | ret = pmic_write(dev->parent, addr, &val, 1); |
| 163 | |
| 164 | return ret; |
| 165 | } |
| 166 | |
| 167 | static int s2mps11_buck_mode(struct udevice *dev, int op, int *opmode) |
| 168 | { |
| 169 | unsigned int addr, mode; |
| 170 | unsigned char val; |
| 171 | int buck, ret; |
| 172 | |
| 173 | buck = dev->driver_data; |
| 174 | if (buck < 1 || buck > S2MPS11_BUCK_NUM) { |
| 175 | pr_err("Wrong buck number: %d\n", buck); |
| 176 | return -EINVAL; |
| 177 | } |
| 178 | |
| 179 | addr = s2mps11_buck_ctrl[buck]; |
| 180 | |
| 181 | ret = pmic_read(dev->parent, addr, &val, 1); |
| 182 | if (ret) |
| 183 | return ret; |
| 184 | |
| 185 | if (op == PMIC_OP_GET) { |
| 186 | val &= (S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT); |
| 187 | switch (val) { |
| 188 | case S2MPS11_BUCK_MODE_OFF: |
| 189 | *opmode = OP_OFF; |
| 190 | break; |
| 191 | case S2MPS11_BUCK_MODE_STANDBY: |
| 192 | *opmode = OP_STANDBY; |
| 193 | break; |
| 194 | case S2MPS11_BUCK_MODE_ON: |
| 195 | *opmode = OP_ON; |
| 196 | break; |
| 197 | default: |
| 198 | return -EINVAL; |
| 199 | } |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | switch (*opmode) { |
| 204 | case OP_OFF: |
| 205 | mode = S2MPS11_BUCK_MODE_OFF; |
| 206 | break; |
| 207 | case OP_STANDBY: |
| 208 | mode = S2MPS11_BUCK_MODE_STANDBY; |
| 209 | break; |
| 210 | case OP_ON: |
| 211 | mode = S2MPS11_BUCK_MODE_ON; |
| 212 | break; |
| 213 | default: |
| 214 | pr_err("Wrong mode: %d for buck: %d\n", *opmode, buck); |
| 215 | return -EINVAL; |
| 216 | } |
| 217 | |
| 218 | val &= ~(S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT); |
| 219 | val |= mode; |
| 220 | ret = pmic_write(dev->parent, addr, &val, 1); |
| 221 | |
| 222 | return ret; |
| 223 | } |
| 224 | |
| 225 | static int s2mps11_buck_enable(struct udevice *dev, int op, bool *enable) |
| 226 | { |
| 227 | int ret, on_off; |
| 228 | |
| 229 | if (op == PMIC_OP_GET) { |
| 230 | ret = s2mps11_buck_mode(dev, op, &on_off); |
| 231 | if (ret) |
| 232 | return ret; |
| 233 | switch (on_off) { |
| 234 | case OP_OFF: |
| 235 | *enable = false; |
| 236 | break; |
| 237 | case OP_ON: |
| 238 | *enable = true; |
| 239 | break; |
| 240 | default: |
| 241 | return -EINVAL; |
| 242 | } |
| 243 | } else if (op == PMIC_OP_SET) { |
| 244 | if (*enable) |
| 245 | on_off = OP_ON; |
| 246 | else |
| 247 | on_off = OP_OFF; |
| 248 | |
| 249 | ret = s2mps11_buck_mode(dev, op, &on_off); |
| 250 | if (ret) |
| 251 | return ret; |
| 252 | } |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static int buck_get_value(struct udevice *dev) |
| 258 | { |
| 259 | int uV; |
| 260 | int ret; |
| 261 | |
| 262 | ret = s2mps11_buck_val(dev, PMIC_OP_GET, &uV); |
| 263 | if (ret) |
| 264 | return ret; |
| 265 | return uV; |
| 266 | } |
| 267 | |
| 268 | static int buck_set_value(struct udevice *dev, int uV) |
| 269 | { |
| 270 | return s2mps11_buck_val(dev, PMIC_OP_SET, &uV); |
| 271 | } |
| 272 | |
| 273 | static int buck_get_enable(struct udevice *dev) |
| 274 | { |
| 275 | bool enable = false; |
| 276 | int ret; |
| 277 | |
| 278 | ret = s2mps11_buck_enable(dev, PMIC_OP_GET, &enable); |
| 279 | if (ret) |
| 280 | return ret; |
| 281 | return enable; |
| 282 | } |
| 283 | |
| 284 | static int buck_set_enable(struct udevice *dev, bool enable) |
| 285 | { |
| 286 | return s2mps11_buck_enable(dev, PMIC_OP_SET, &enable); |
| 287 | } |
| 288 | |
| 289 | static int buck_get_mode(struct udevice *dev) |
| 290 | { |
| 291 | int mode; |
| 292 | int ret; |
| 293 | |
| 294 | ret = s2mps11_buck_mode(dev, PMIC_OP_GET, &mode); |
| 295 | if (ret) |
| 296 | return ret; |
| 297 | |
| 298 | return mode; |
| 299 | } |
| 300 | |
| 301 | static int buck_set_mode(struct udevice *dev, int mode) |
| 302 | { |
| 303 | return s2mps11_buck_mode(dev, PMIC_OP_SET, &mode); |
| 304 | } |
| 305 | |
| 306 | static int s2mps11_buck_probe(struct udevice *dev) |
| 307 | { |
| 308 | struct dm_regulator_uclass_platdata *uc_pdata; |
| 309 | |
| 310 | uc_pdata = dev_get_uclass_platdata(dev); |
| 311 | |
| 312 | uc_pdata->type = REGULATOR_TYPE_BUCK; |
| 313 | uc_pdata->mode = s2mps11_buck_modes; |
| 314 | uc_pdata->mode_count = ARRAY_SIZE(s2mps11_buck_modes); |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static const struct dm_regulator_ops s2mps11_buck_ops = { |
| 320 | .get_value = buck_get_value, |
| 321 | .set_value = buck_set_value, |
| 322 | .get_enable = buck_get_enable, |
| 323 | .set_enable = buck_set_enable, |
| 324 | .get_mode = buck_get_mode, |
| 325 | .set_mode = buck_set_mode, |
| 326 | }; |
| 327 | |
| 328 | U_BOOT_DRIVER(s2mps11_buck) = { |
| 329 | .name = S2MPS11_BUCK_DRIVER, |
| 330 | .id = UCLASS_REGULATOR, |
| 331 | .ops = &s2mps11_buck_ops, |
| 332 | .probe = s2mps11_buck_probe, |
| 333 | }; |
| 334 | |
| 335 | static int s2mps11_ldo_hex2volt(int ldo, int hex) |
| 336 | { |
| 337 | unsigned int uV = 0; |
| 338 | |
| 339 | if (hex > S2MPS11_LDO_VOLT_MAX_HEX) { |
| 340 | pr_err("Value: %#x is wrong for LDO%d", hex, ldo); |
| 341 | return -EINVAL; |
| 342 | } |
| 343 | |
| 344 | switch (ldo) { |
| 345 | case 1: |
| 346 | case 6: |
| 347 | case 11: |
| 348 | case 22: |
| 349 | case 23: |
Krzysztof Kozlowski | 8036835 | 2019-03-06 19:37:50 +0100 | [diff] [blame] | 350 | case 27: |
| 351 | case 35: |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 352 | uV = hex * S2MPS11_LDO_STEP + S2MPS11_LDO_UV_MIN; |
| 353 | break; |
| 354 | default: |
| 355 | uV = hex * S2MPS11_LDO_STEP * 2 + S2MPS11_LDO_UV_MIN; |
| 356 | break; |
| 357 | } |
| 358 | |
| 359 | return uV; |
| 360 | } |
| 361 | |
| 362 | static int s2mps11_ldo_volt2hex(int ldo, int uV) |
| 363 | { |
| 364 | int hex = 0; |
| 365 | |
| 366 | switch (ldo) { |
| 367 | case 1: |
| 368 | case 6: |
| 369 | case 11: |
| 370 | case 22: |
| 371 | case 23: |
Krzysztof Kozlowski | 8036835 | 2019-03-06 19:37:50 +0100 | [diff] [blame] | 372 | case 27: |
| 373 | case 35: |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 374 | hex = (uV - S2MPS11_LDO_UV_MIN) / S2MPS11_LDO_STEP; |
| 375 | break; |
| 376 | default: |
| 377 | hex = (uV - S2MPS11_LDO_UV_MIN) / (S2MPS11_LDO_STEP * 2); |
| 378 | break; |
| 379 | } |
| 380 | |
| 381 | if (hex >= 0 && hex <= S2MPS11_LDO_VOLT_MAX_HEX) |
| 382 | return hex; |
| 383 | |
| 384 | pr_err("Value: %d uV is wrong for LDO%d", uV, ldo); |
| 385 | return -EINVAL; |
| 386 | |
| 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | static int s2mps11_ldo_val(struct udevice *dev, int op, int *uV) |
| 391 | { |
| 392 | unsigned int addr; |
| 393 | unsigned char val; |
| 394 | int hex, ldo, ret; |
| 395 | |
| 396 | ldo = dev->driver_data; |
| 397 | if (ldo < 1 || ldo > S2MPS11_LDO_NUM) { |
| 398 | pr_err("Wrong ldo number: %d\n", ldo); |
| 399 | return -EINVAL; |
| 400 | } |
| 401 | |
| 402 | addr = S2MPS11_REG_L1CTRL + ldo - 1; |
| 403 | |
| 404 | ret = pmic_read(dev->parent, addr, &val, 1); |
| 405 | if (ret) |
| 406 | return ret; |
| 407 | |
| 408 | if (op == PMIC_OP_GET) { |
| 409 | *uV = 0; |
| 410 | val &= S2MPS11_LDO_VOLT_MASK; |
| 411 | ret = s2mps11_ldo_hex2volt(ldo, val); |
| 412 | if (ret < 0) |
| 413 | return ret; |
| 414 | |
| 415 | *uV = ret; |
| 416 | return 0; |
| 417 | } |
| 418 | |
| 419 | hex = s2mps11_ldo_volt2hex(ldo, *uV); |
| 420 | if (hex < 0) |
| 421 | return hex; |
| 422 | |
| 423 | val &= ~S2MPS11_LDO_VOLT_MASK; |
| 424 | val |= hex; |
| 425 | ret = pmic_write(dev->parent, addr, &val, 1); |
| 426 | |
| 427 | return ret; |
| 428 | } |
| 429 | |
| 430 | static int s2mps11_ldo_mode(struct udevice *dev, int op, int *opmode) |
| 431 | { |
| 432 | unsigned int addr, mode; |
| 433 | unsigned char val; |
| 434 | int ldo, ret; |
| 435 | |
| 436 | ldo = dev->driver_data; |
| 437 | if (ldo < 1 || ldo > S2MPS11_LDO_NUM) { |
| 438 | pr_err("Wrong ldo number: %d\n", ldo); |
| 439 | return -EINVAL; |
| 440 | } |
| 441 | addr = S2MPS11_REG_L1CTRL + ldo - 1; |
| 442 | |
| 443 | ret = pmic_read(dev->parent, addr, &val, 1); |
| 444 | if (ret) |
| 445 | return ret; |
| 446 | |
| 447 | if (op == PMIC_OP_GET) { |
| 448 | val &= (S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT); |
| 449 | switch (val) { |
| 450 | case S2MPS11_LDO_MODE_OFF: |
| 451 | *opmode = OP_OFF; |
| 452 | break; |
| 453 | case S2MPS11_LDO_MODE_STANDBY: |
| 454 | *opmode = OP_STANDBY; |
| 455 | break; |
| 456 | case S2MPS11_LDO_MODE_STANDBY_LPM: |
| 457 | *opmode = OP_STANDBY_LPM; |
| 458 | break; |
| 459 | case S2MPS11_LDO_MODE_ON: |
| 460 | *opmode = OP_ON; |
| 461 | break; |
| 462 | default: |
| 463 | return -EINVAL; |
| 464 | } |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | switch (*opmode) { |
| 469 | case OP_OFF: |
| 470 | mode = S2MPS11_LDO_MODE_OFF; |
| 471 | break; |
| 472 | case OP_STANDBY: |
| 473 | mode = S2MPS11_LDO_MODE_STANDBY; |
| 474 | break; |
| 475 | case OP_STANDBY_LPM: |
| 476 | mode = S2MPS11_LDO_MODE_STANDBY_LPM; |
| 477 | break; |
| 478 | case OP_ON: |
| 479 | mode = S2MPS11_LDO_MODE_ON; |
| 480 | break; |
| 481 | default: |
| 482 | pr_err("Wrong mode: %d for ldo: %d\n", *opmode, ldo); |
| 483 | return -EINVAL; |
| 484 | } |
| 485 | |
| 486 | val &= ~(S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT); |
| 487 | val |= mode; |
| 488 | ret = pmic_write(dev->parent, addr, &val, 1); |
| 489 | |
| 490 | return ret; |
| 491 | } |
| 492 | |
| 493 | static int s2mps11_ldo_enable(struct udevice *dev, int op, bool *enable) |
| 494 | { |
| 495 | int ret, on_off; |
| 496 | |
| 497 | if (op == PMIC_OP_GET) { |
| 498 | ret = s2mps11_ldo_mode(dev, op, &on_off); |
| 499 | if (ret) |
| 500 | return ret; |
| 501 | switch (on_off) { |
| 502 | case OP_OFF: |
| 503 | *enable = false; |
| 504 | break; |
| 505 | case OP_ON: |
| 506 | *enable = true; |
| 507 | break; |
| 508 | default: |
| 509 | return -EINVAL; |
| 510 | } |
| 511 | } else if (op == PMIC_OP_SET) { |
| 512 | if (*enable) |
| 513 | on_off = OP_ON; |
| 514 | else |
| 515 | on_off = OP_OFF; |
| 516 | |
| 517 | ret = s2mps11_ldo_mode(dev, op, &on_off); |
| 518 | if (ret) |
| 519 | return ret; |
| 520 | } |
| 521 | |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int ldo_get_value(struct udevice *dev) |
| 526 | { |
| 527 | int uV; |
| 528 | int ret; |
| 529 | |
| 530 | ret = s2mps11_ldo_val(dev, PMIC_OP_GET, &uV); |
| 531 | if (ret) |
| 532 | return ret; |
| 533 | |
| 534 | return uV; |
| 535 | } |
| 536 | |
| 537 | static int ldo_set_value(struct udevice *dev, int uV) |
| 538 | { |
| 539 | return s2mps11_ldo_val(dev, PMIC_OP_SET, &uV); |
| 540 | } |
| 541 | |
| 542 | static int ldo_get_enable(struct udevice *dev) |
| 543 | { |
| 544 | bool enable = false; |
| 545 | int ret; |
| 546 | |
| 547 | ret = s2mps11_ldo_enable(dev, PMIC_OP_GET, &enable); |
| 548 | if (ret) |
| 549 | return ret; |
| 550 | return enable; |
| 551 | } |
| 552 | |
| 553 | static int ldo_set_enable(struct udevice *dev, bool enable) |
| 554 | { |
Krzysztof Kozlowski | 42757c3 | 2019-03-06 19:37:55 +0100 | [diff] [blame] | 555 | int ret; |
| 556 | |
| 557 | ret = s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable); |
| 558 | if (ret) |
| 559 | return ret; |
| 560 | |
| 561 | /* Wait the "enable delay" for voltage to start to rise */ |
| 562 | udelay(15); |
| 563 | |
| 564 | return 0; |
Jaehoon Chung | 76f2008 | 2018-01-16 15:33:50 +0900 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | static int ldo_get_mode(struct udevice *dev) |
| 568 | { |
| 569 | int mode, ret; |
| 570 | |
| 571 | ret = s2mps11_ldo_mode(dev, PMIC_OP_GET, &mode); |
| 572 | if (ret) |
| 573 | return ret; |
| 574 | return mode; |
| 575 | } |
| 576 | |
| 577 | static int ldo_set_mode(struct udevice *dev, int mode) |
| 578 | { |
| 579 | return s2mps11_ldo_mode(dev, PMIC_OP_SET, &mode); |
| 580 | } |
| 581 | |
| 582 | static int s2mps11_ldo_probe(struct udevice *dev) |
| 583 | { |
| 584 | struct dm_regulator_uclass_platdata *uc_pdata; |
| 585 | |
| 586 | uc_pdata = dev_get_uclass_platdata(dev); |
| 587 | uc_pdata->type = REGULATOR_TYPE_LDO; |
| 588 | uc_pdata->mode = s2mps11_ldo_modes; |
| 589 | uc_pdata->mode_count = ARRAY_SIZE(s2mps11_ldo_modes); |
| 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | static const struct dm_regulator_ops s2mps11_ldo_ops = { |
| 595 | .get_value = ldo_get_value, |
| 596 | .set_value = ldo_set_value, |
| 597 | .get_enable = ldo_get_enable, |
| 598 | .set_enable = ldo_set_enable, |
| 599 | .get_mode = ldo_get_mode, |
| 600 | .set_mode = ldo_set_mode, |
| 601 | }; |
| 602 | |
| 603 | U_BOOT_DRIVER(s2mps11_ldo) = { |
| 604 | .name = S2MPS11_LDO_DRIVER, |
| 605 | .id = UCLASS_REGULATOR, |
| 606 | .ops = &s2mps11_ldo_ops, |
| 607 | .probe = s2mps11_ldo_probe, |
| 608 | }; |