1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics magnetometers driver 4 * 5 * Copyright 2012-2013 STMicroelectronics Inc. 6 * 7 * Denis Ciocca <denis.ciocca@st.com> 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/mutex.h> 13 #include <linux/sysfs.h> 14 #include <linux/iio/iio.h> 15 #include <linux/iio/sysfs.h> 16 #include <linux/iio/trigger.h> 17 18 #include <linux/iio/common/st_sensors.h> 19 #include "st_magn.h" 20 21 #define ST_MAGN_NUMBER_DATA_CHANNELS 3 22 23 /* DEFAULT VALUE FOR SENSORS */ 24 #define ST_MAGN_DEFAULT_OUT_X_H_ADDR 0x03 25 #define ST_MAGN_DEFAULT_OUT_Y_H_ADDR 0x07 26 #define ST_MAGN_DEFAULT_OUT_Z_H_ADDR 0x05 27 28 /* FULLSCALE */ 29 #define ST_MAGN_FS_AVL_1300MG 1300 30 #define ST_MAGN_FS_AVL_1900MG 1900 31 #define ST_MAGN_FS_AVL_2000MG 2000 32 #define ST_MAGN_FS_AVL_2500MG 2500 33 #define ST_MAGN_FS_AVL_4000MG 4000 34 #define ST_MAGN_FS_AVL_4700MG 4700 35 #define ST_MAGN_FS_AVL_5600MG 5600 36 #define ST_MAGN_FS_AVL_8000MG 8000 37 #define ST_MAGN_FS_AVL_8100MG 8100 38 #define ST_MAGN_FS_AVL_12000MG 12000 39 #define ST_MAGN_FS_AVL_15000MG 15000 40 #define ST_MAGN_FS_AVL_16000MG 16000 41 42 /* Special L addresses for Sensor 2 */ 43 #define ST_MAGN_2_OUT_X_L_ADDR 0x28 44 #define ST_MAGN_2_OUT_Y_L_ADDR 0x2a 45 #define ST_MAGN_2_OUT_Z_L_ADDR 0x2c 46 47 /* Special L addresses for sensor 3 */ 48 #define ST_MAGN_3_OUT_X_L_ADDR 0x68 49 #define ST_MAGN_3_OUT_Y_L_ADDR 0x6a 50 #define ST_MAGN_3_OUT_Z_L_ADDR 0x6c 51 52 /* Special L addresses for sensor 4 */ 53 #define ST_MAGN_4_OUT_X_L_ADDR 0x08 54 #define ST_MAGN_4_OUT_Y_L_ADDR 0x0a 55 #define ST_MAGN_4_OUT_Z_L_ADDR 0x0c 56 57 static const struct iio_mount_matrix * 58 st_magn_get_mount_matrix(const struct iio_dev *indio_dev, 59 const struct iio_chan_spec *chan) 60 { 61 struct st_sensor_data *mdata = iio_priv(indio_dev); 62 63 return &mdata->mount_matrix; 64 } 65 66 static const struct iio_chan_spec_ext_info st_magn_mount_matrix_ext_info[] = { 67 IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_magn_get_mount_matrix), 68 { } 69 }; 70 71 static const struct iio_chan_spec st_magn_16bit_channels[] = { 72 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 73 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 74 ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16, 75 ST_MAGN_DEFAULT_OUT_X_H_ADDR, 76 st_magn_mount_matrix_ext_info), 77 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 78 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 79 ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16, 80 ST_MAGN_DEFAULT_OUT_Y_H_ADDR, 81 st_magn_mount_matrix_ext_info), 82 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 83 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 84 ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16, 85 ST_MAGN_DEFAULT_OUT_Z_H_ADDR, 86 st_magn_mount_matrix_ext_info), 87 IIO_CHAN_SOFT_TIMESTAMP(3) 88 }; 89 90 static const struct iio_chan_spec st_magn_2_16bit_channels[] = { 91 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 92 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 93 ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, 94 ST_MAGN_2_OUT_X_L_ADDR, 95 st_magn_mount_matrix_ext_info), 96 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 97 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 98 ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, 99 ST_MAGN_2_OUT_Y_L_ADDR, 100 st_magn_mount_matrix_ext_info), 101 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 102 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 103 ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, 104 ST_MAGN_2_OUT_Z_L_ADDR, 105 st_magn_mount_matrix_ext_info), 106 IIO_CHAN_SOFT_TIMESTAMP(3) 107 }; 108 109 static const struct iio_chan_spec st_magn_3_16bit_channels[] = { 110 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 111 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 112 ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, 113 ST_MAGN_3_OUT_X_L_ADDR, 114 st_magn_mount_matrix_ext_info), 115 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 116 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 117 ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, 118 ST_MAGN_3_OUT_Y_L_ADDR, 119 st_magn_mount_matrix_ext_info), 120 ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN, 121 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 122 ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, 123 ST_MAGN_3_OUT_Z_L_ADDR, 124 st_magn_mount_matrix_ext_info), 125 IIO_CHAN_SOFT_TIMESTAMP(3) 126 }; 127 128 static const struct iio_chan_spec st_magn_4_16bit_channels[] = { 129 ST_SENSORS_LSM_CHANNELS(IIO_MAGN, 130 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 131 ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, 132 ST_MAGN_4_OUT_X_L_ADDR), 133 ST_SENSORS_LSM_CHANNELS(IIO_MAGN, 134 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 135 ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, 136 ST_MAGN_4_OUT_Y_L_ADDR), 137 ST_SENSORS_LSM_CHANNELS(IIO_MAGN, 138 BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), 139 ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, 140 ST_MAGN_4_OUT_Z_L_ADDR), 141 IIO_CHAN_SOFT_TIMESTAMP(3) 142 }; 143 144 static const struct st_sensor_settings st_magn_sensors_settings[] = { 145 { 146 .wai = 0, /* This sensor has no valid WhoAmI report 0 */ 147 .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, 148 .sensors_supported = { 149 [0] = LSM303DLH_MAGN_DEV_NAME, 150 }, 151 .ch = (struct iio_chan_spec *)st_magn_16bit_channels, 152 .odr = { 153 .addr = 0x00, 154 .mask = 0x1c, 155 .odr_avl = { 156 { .hz = 1, .value = 0x00 }, 157 { .hz = 2, .value = 0x01 }, 158 { .hz = 3, .value = 0x02 }, 159 { .hz = 8, .value = 0x03 }, 160 { .hz = 15, .value = 0x04 }, 161 { .hz = 30, .value = 0x05 }, 162 { .hz = 75, .value = 0x06 }, 163 /* 220 Hz, 0x07 reportedly exist */ 164 }, 165 }, 166 .pw = { 167 .addr = 0x02, 168 .mask = 0x03, 169 .value_on = 0x00, 170 .value_off = 0x03, 171 }, 172 .fs = { 173 .addr = 0x01, 174 .mask = 0xe0, 175 .fs_avl = { 176 [0] = { 177 .num = ST_MAGN_FS_AVL_1300MG, 178 .value = 0x01, 179 .gain = 1100, 180 .gain2 = 980, 181 }, 182 [1] = { 183 .num = ST_MAGN_FS_AVL_1900MG, 184 .value = 0x02, 185 .gain = 855, 186 .gain2 = 760, 187 }, 188 [2] = { 189 .num = ST_MAGN_FS_AVL_2500MG, 190 .value = 0x03, 191 .gain = 670, 192 .gain2 = 600, 193 }, 194 [3] = { 195 .num = ST_MAGN_FS_AVL_4000MG, 196 .value = 0x04, 197 .gain = 450, 198 .gain2 = 400, 199 }, 200 [4] = { 201 .num = ST_MAGN_FS_AVL_4700MG, 202 .value = 0x05, 203 .gain = 400, 204 .gain2 = 355, 205 }, 206 [5] = { 207 .num = ST_MAGN_FS_AVL_5600MG, 208 .value = 0x06, 209 .gain = 330, 210 .gain2 = 295, 211 }, 212 [6] = { 213 .num = ST_MAGN_FS_AVL_8100MG, 214 .value = 0x07, 215 .gain = 230, 216 .gain2 = 205, 217 }, 218 }, 219 }, 220 .multi_read_bit = false, 221 .bootime = 2, 222 }, 223 { 224 .wai = 0x3c, 225 .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, 226 .sensors_supported = { 227 [0] = LSM303DLHC_MAGN_DEV_NAME, 228 [1] = LSM303DLM_MAGN_DEV_NAME, 229 }, 230 .ch = (struct iio_chan_spec *)st_magn_16bit_channels, 231 .odr = { 232 .addr = 0x00, 233 .mask = 0x1c, 234 .odr_avl = { 235 { .hz = 1, .value = 0x00 }, 236 { .hz = 2, .value = 0x01 }, 237 { .hz = 3, .value = 0x02 }, 238 { .hz = 8, .value = 0x03 }, 239 { .hz = 15, .value = 0x04 }, 240 { .hz = 30, .value = 0x05 }, 241 { .hz = 75, .value = 0x06 }, 242 { .hz = 220, .value = 0x07 }, 243 }, 244 }, 245 .pw = { 246 .addr = 0x02, 247 .mask = 0x03, 248 .value_on = 0x00, 249 .value_off = 0x03, 250 }, 251 .fs = { 252 .addr = 0x01, 253 .mask = 0xe0, 254 .fs_avl = { 255 [0] = { 256 .num = ST_MAGN_FS_AVL_1300MG, 257 .value = 0x01, 258 .gain = 909, 259 .gain2 = 1020, 260 }, 261 [1] = { 262 .num = ST_MAGN_FS_AVL_1900MG, 263 .value = 0x02, 264 .gain = 1169, 265 .gain2 = 1315, 266 }, 267 [2] = { 268 .num = ST_MAGN_FS_AVL_2500MG, 269 .value = 0x03, 270 .gain = 1492, 271 .gain2 = 1666, 272 }, 273 [3] = { 274 .num = ST_MAGN_FS_AVL_4000MG, 275 .value = 0x04, 276 .gain = 2222, 277 .gain2 = 2500, 278 }, 279 [4] = { 280 .num = ST_MAGN_FS_AVL_4700MG, 281 .value = 0x05, 282 .gain = 2500, 283 .gain2 = 2816, 284 }, 285 [5] = { 286 .num = ST_MAGN_FS_AVL_5600MG, 287 .value = 0x06, 288 .gain = 3030, 289 .gain2 = 3389, 290 }, 291 [6] = { 292 .num = ST_MAGN_FS_AVL_8100MG, 293 .value = 0x07, 294 .gain = 4347, 295 .gain2 = 4878, 296 }, 297 }, 298 }, 299 .multi_read_bit = false, 300 .bootime = 2, 301 }, 302 { 303 .wai = 0x3d, 304 .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, 305 .sensors_supported = { 306 [0] = LIS3MDL_MAGN_DEV_NAME, 307 [1] = LSM9DS1_MAGN_DEV_NAME, 308 }, 309 .ch = (struct iio_chan_spec *)st_magn_2_16bit_channels, 310 .odr = { 311 .addr = 0x20, 312 .mask = 0x1c, 313 .odr_avl = { 314 { .hz = 1, .value = 0x00 }, 315 { .hz = 2, .value = 0x01 }, 316 { .hz = 3, .value = 0x02 }, 317 { .hz = 5, .value = 0x03 }, 318 { .hz = 10, .value = 0x04 }, 319 { .hz = 20, .value = 0x05 }, 320 { .hz = 40, .value = 0x06 }, 321 { .hz = 80, .value = 0x07 }, 322 }, 323 }, 324 .pw = { 325 .addr = 0x22, 326 .mask = 0x03, 327 .value_on = 0x00, 328 .value_off = 0x03, 329 }, 330 .fs = { 331 .addr = 0x21, 332 .mask = 0x60, 333 .fs_avl = { 334 [0] = { 335 .num = ST_MAGN_FS_AVL_4000MG, 336 .value = 0x00, 337 .gain = 146, 338 }, 339 [1] = { 340 .num = ST_MAGN_FS_AVL_8000MG, 341 .value = 0x01, 342 .gain = 292, 343 }, 344 [2] = { 345 .num = ST_MAGN_FS_AVL_12000MG, 346 .value = 0x02, 347 .gain = 438, 348 }, 349 [3] = { 350 .num = ST_MAGN_FS_AVL_16000MG, 351 .value = 0x03, 352 .gain = 584, 353 }, 354 }, 355 }, 356 .bdu = { 357 .addr = 0x24, 358 .mask = 0x40, 359 }, 360 .drdy_irq = { 361 /* drdy line is routed drdy pin */ 362 .stat_drdy = { 363 .addr = ST_SENSORS_DEFAULT_STAT_ADDR, 364 .mask = 0x07, 365 }, 366 }, 367 .sim = { 368 .addr = 0x22, 369 .value = BIT(2), 370 }, 371 .multi_read_bit = true, 372 .bootime = 2, 373 }, 374 { 375 .wai = 0x40, 376 .wai_addr = 0x4f, 377 .sensors_supported = { 378 [0] = LSM303AGR_MAGN_DEV_NAME, 379 [1] = LIS2MDL_MAGN_DEV_NAME, 380 [2] = IIS2MDC_MAGN_DEV_NAME, 381 }, 382 .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels, 383 .odr = { 384 .addr = 0x60, 385 .mask = 0x0c, 386 .odr_avl = { 387 { .hz = 10, .value = 0x00 }, 388 { .hz = 20, .value = 0x01 }, 389 { .hz = 50, .value = 0x02 }, 390 { .hz = 100, .value = 0x03 }, 391 }, 392 }, 393 .pw = { 394 .addr = 0x60, 395 .mask = 0x03, 396 .value_on = 0x00, 397 .value_off = 0x03, 398 }, 399 .fs = { 400 .fs_avl = { 401 [0] = { 402 .num = ST_MAGN_FS_AVL_15000MG, 403 .gain = 1500, 404 }, 405 }, 406 }, 407 .bdu = { 408 .addr = 0x62, 409 .mask = 0x10, 410 }, 411 .drdy_irq = { 412 .int1 = { 413 .addr = 0x62, 414 .mask = 0x01, 415 }, 416 .stat_drdy = { 417 .addr = 0x67, 418 .mask = 0x07, 419 }, 420 }, 421 .multi_read_bit = false, 422 .bootime = 2, 423 }, 424 { 425 .wai = 0x49, 426 .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, 427 .sensors_supported = { 428 [0] = LSM9DS0_IMU_DEV_NAME, 429 }, 430 .ch = (struct iio_chan_spec *)st_magn_4_16bit_channels, 431 .odr = { 432 .addr = 0x24, 433 .mask = GENMASK(4, 2), 434 .odr_avl = { 435 { 3, 0x00, }, 436 { 6, 0x01, }, 437 { 12, 0x02, }, 438 { 25, 0x03, }, 439 { 50, 0x04, }, 440 { 100, 0x05, }, 441 }, 442 }, 443 .pw = { 444 .addr = 0x26, 445 .mask = GENMASK(1, 0), 446 .value_on = 0x00, 447 .value_off = 0x03, 448 }, 449 .fs = { 450 .addr = 0x25, 451 .mask = GENMASK(6, 5), 452 .fs_avl = { 453 [0] = { 454 .num = ST_MAGN_FS_AVL_2000MG, 455 .value = 0x00, 456 .gain = 73, 457 }, 458 [1] = { 459 .num = ST_MAGN_FS_AVL_4000MG, 460 .value = 0x01, 461 .gain = 146, 462 }, 463 [2] = { 464 .num = ST_MAGN_FS_AVL_8000MG, 465 .value = 0x02, 466 .gain = 292, 467 }, 468 [3] = { 469 .num = ST_MAGN_FS_AVL_12000MG, 470 .value = 0x03, 471 .gain = 438, 472 }, 473 }, 474 }, 475 .bdu = { 476 .addr = 0x20, 477 .mask = BIT(3), 478 }, 479 .drdy_irq = { 480 .int1 = { 481 .addr = 0x22, 482 .mask = BIT(1), 483 }, 484 .int2 = { 485 .addr = 0x23, 486 .mask = BIT(2), 487 }, 488 .stat_drdy = { 489 .addr = 0x07, 490 .mask = GENMASK(2, 0), 491 }, 492 }, 493 .sim = { 494 .addr = 0x21, 495 .value = BIT(0), 496 }, 497 .multi_read_bit = true, 498 .bootime = 2, 499 }, 500 }; 501 502 /* Default magn DRDY is available on INT2 pin */ 503 static const struct st_sensors_platform_data default_magn_pdata = { 504 .drdy_int_pin = 2, 505 }; 506 507 static int st_magn_read_raw(struct iio_dev *indio_dev, 508 struct iio_chan_spec const *ch, int *val, 509 int *val2, long mask) 510 { 511 int err; 512 struct st_sensor_data *mdata = iio_priv(indio_dev); 513 514 switch (mask) { 515 case IIO_CHAN_INFO_RAW: 516 err = st_sensors_read_info_raw(indio_dev, ch, val); 517 if (err < 0) 518 goto read_error; 519 520 return IIO_VAL_INT; 521 case IIO_CHAN_INFO_SCALE: 522 *val = 0; 523 if ((ch->scan_index == ST_SENSORS_SCAN_Z) && 524 (mdata->current_fullscale->gain2 != 0)) 525 *val2 = mdata->current_fullscale->gain2; 526 else 527 *val2 = mdata->current_fullscale->gain; 528 return IIO_VAL_INT_PLUS_MICRO; 529 case IIO_CHAN_INFO_SAMP_FREQ: 530 *val = mdata->odr; 531 return IIO_VAL_INT; 532 default: 533 return -EINVAL; 534 } 535 536 read_error: 537 return err; 538 } 539 540 static int st_magn_write_raw(struct iio_dev *indio_dev, 541 struct iio_chan_spec const *chan, int val, int val2, long mask) 542 { 543 int err; 544 545 switch (mask) { 546 case IIO_CHAN_INFO_SCALE: 547 err = st_sensors_set_fullscale_by_gain(indio_dev, val2); 548 break; 549 case IIO_CHAN_INFO_SAMP_FREQ: 550 if (val2) 551 return -EINVAL; 552 mutex_lock(&indio_dev->mlock); 553 err = st_sensors_set_odr(indio_dev, val); 554 mutex_unlock(&indio_dev->mlock); 555 return err; 556 default: 557 err = -EINVAL; 558 } 559 560 return err; 561 } 562 563 static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL(); 564 static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_magn_scale_available); 565 566 static struct attribute *st_magn_attributes[] = { 567 &iio_dev_attr_sampling_frequency_available.dev_attr.attr, 568 &iio_dev_attr_in_magn_scale_available.dev_attr.attr, 569 NULL, 570 }; 571 572 static const struct attribute_group st_magn_attribute_group = { 573 .attrs = st_magn_attributes, 574 }; 575 576 static const struct iio_info magn_info = { 577 .attrs = &st_magn_attribute_group, 578 .read_raw = &st_magn_read_raw, 579 .write_raw = &st_magn_write_raw, 580 .debugfs_reg_access = &st_sensors_debugfs_reg_access, 581 }; 582 583 #ifdef CONFIG_IIO_TRIGGER 584 static const struct iio_trigger_ops st_magn_trigger_ops = { 585 .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE, 586 .validate_device = st_sensors_validate_device, 587 }; 588 #define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops) 589 #else 590 #define ST_MAGN_TRIGGER_OPS NULL 591 #endif 592 593 /* 594 * st_magn_get_settings() - get sensor settings from device name 595 * @name: device name buffer reference. 596 * 597 * Return: valid reference on success, NULL otherwise. 598 */ 599 const struct st_sensor_settings *st_magn_get_settings(const char *name) 600 { 601 int index = st_sensors_get_settings_index(name, 602 st_magn_sensors_settings, 603 ARRAY_SIZE(st_magn_sensors_settings)); 604 if (index < 0) 605 return NULL; 606 607 return &st_magn_sensors_settings[index]; 608 } 609 EXPORT_SYMBOL(st_magn_get_settings); 610 611 int st_magn_common_probe(struct iio_dev *indio_dev) 612 { 613 struct st_sensor_data *mdata = iio_priv(indio_dev); 614 struct device *parent = indio_dev->dev.parent; 615 struct st_sensors_platform_data *pdata = dev_get_platdata(parent); 616 int err; 617 618 indio_dev->modes = INDIO_DIRECT_MODE; 619 indio_dev->info = &magn_info; 620 621 err = st_sensors_verify_id(indio_dev); 622 if (err < 0) 623 return err; 624 625 mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS; 626 indio_dev->channels = mdata->sensor_settings->ch; 627 indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS; 628 629 err = iio_read_mount_matrix(parent, &mdata->mount_matrix); 630 if (err) 631 return err; 632 633 mdata->current_fullscale = &mdata->sensor_settings->fs.fs_avl[0]; 634 mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz; 635 636 if (!pdata) 637 pdata = (struct st_sensors_platform_data *)&default_magn_pdata; 638 639 err = st_sensors_init_sensor(indio_dev, pdata); 640 if (err < 0) 641 return err; 642 643 err = st_magn_allocate_ring(indio_dev); 644 if (err < 0) 645 return err; 646 647 if (mdata->irq > 0) { 648 err = st_sensors_allocate_trigger(indio_dev, 649 ST_MAGN_TRIGGER_OPS); 650 if (err < 0) 651 return err; 652 } 653 654 return devm_iio_device_register(parent, indio_dev); 655 } 656 EXPORT_SYMBOL(st_magn_common_probe); 657 658 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 659 MODULE_DESCRIPTION("STMicroelectronics magnetometers driver"); 660 MODULE_LICENSE("GPL v2"); 661