1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * ADMV1013 driver 4 * 5 * Copyright 2021 Analog Devices Inc. 6 */ 7 8 #include <linux/bitfield.h> 9 #include <linux/bits.h> 10 #include <linux/clk.h> 11 #include <linux/device.h> 12 #include <linux/iio/iio.h> 13 #include <linux/module.h> 14 #include <linux/mod_devicetable.h> 15 #include <linux/notifier.h> 16 #include <linux/property.h> 17 #include <linux/regulator/consumer.h> 18 #include <linux/spi/spi.h> 19 #include <linux/units.h> 20 21 #include <asm/unaligned.h> 22 23 /* ADMV1013 Register Map */ 24 #define ADMV1013_REG_SPI_CONTROL 0x00 25 #define ADMV1013_REG_ALARM 0x01 26 #define ADMV1013_REG_ALARM_MASKS 0x02 27 #define ADMV1013_REG_ENABLE 0x03 28 #define ADMV1013_REG_LO_AMP_I 0x05 29 #define ADMV1013_REG_LO_AMP_Q 0x06 30 #define ADMV1013_REG_OFFSET_ADJUST_I 0x07 31 #define ADMV1013_REG_OFFSET_ADJUST_Q 0x08 32 #define ADMV1013_REG_QUAD 0x09 33 #define ADMV1013_REG_VVA_TEMP_COMP 0x0A 34 35 /* ADMV1013_REG_SPI_CONTROL Map */ 36 #define ADMV1013_PARITY_EN_MSK BIT(15) 37 #define ADMV1013_SPI_SOFT_RESET_MSK BIT(14) 38 #define ADMV1013_CHIP_ID_MSK GENMASK(11, 4) 39 #define ADMV1013_CHIP_ID 0xA 40 #define ADMV1013_REVISION_ID_MSK GENMASK(3, 0) 41 42 /* ADMV1013_REG_ALARM Map */ 43 #define ADMV1013_PARITY_ERROR_MSK BIT(15) 44 #define ADMV1013_TOO_FEW_ERRORS_MSK BIT(14) 45 #define ADMV1013_TOO_MANY_ERRORS_MSK BIT(13) 46 #define ADMV1013_ADDRESS_RANGE_ERROR_MSK BIT(12) 47 48 /* ADMV1013_REG_ENABLE Map */ 49 #define ADMV1013_VGA_PD_MSK BIT(15) 50 #define ADMV1013_MIXER_PD_MSK BIT(14) 51 #define ADMV1013_QUAD_PD_MSK GENMASK(13, 11) 52 #define ADMV1013_BG_PD_MSK BIT(10) 53 #define ADMV1013_MIXER_IF_EN_MSK BIT(7) 54 #define ADMV1013_DET_EN_MSK BIT(5) 55 56 /* ADMV1013_REG_LO_AMP Map */ 57 #define ADMV1013_LOAMP_PH_ADJ_FINE_MSK GENMASK(13, 7) 58 #define ADMV1013_MIXER_VGATE_MSK GENMASK(6, 0) 59 60 /* ADMV1013_REG_OFFSET_ADJUST Map */ 61 #define ADMV1013_MIXER_OFF_ADJ_P_MSK GENMASK(15, 9) 62 #define ADMV1013_MIXER_OFF_ADJ_N_MSK GENMASK(8, 2) 63 64 /* ADMV1013_REG_QUAD Map */ 65 #define ADMV1013_QUAD_SE_MODE_MSK GENMASK(9, 6) 66 #define ADMV1013_QUAD_FILTERS_MSK GENMASK(3, 0) 67 68 /* ADMV1013_REG_VVA_TEMP_COMP Map */ 69 #define ADMV1013_VVA_TEMP_COMP_MSK GENMASK(15, 0) 70 71 /* ADMV1013 Miscellaneous Defines */ 72 #define ADMV1013_READ BIT(7) 73 #define ADMV1013_REG_ADDR_READ_MSK GENMASK(6, 1) 74 #define ADMV1013_REG_ADDR_WRITE_MSK GENMASK(22, 17) 75 #define ADMV1013_REG_DATA_MSK GENMASK(16, 1) 76 77 enum { 78 ADMV1013_IQ_MODE, 79 ADMV1013_IF_MODE 80 }; 81 82 enum { 83 ADMV1013_RFMOD_I_CALIBPHASE, 84 ADMV1013_RFMOD_Q_CALIBPHASE, 85 }; 86 87 enum { 88 ADMV1013_SE_MODE_POS = 6, 89 ADMV1013_SE_MODE_NEG = 9, 90 ADMV1013_SE_MODE_DIFF = 12 91 }; 92 93 struct admv1013_state { 94 struct spi_device *spi; 95 struct clk *clkin; 96 /* Protect against concurrent accesses to the device and to data */ 97 struct mutex lock; 98 struct regulator *reg; 99 struct notifier_block nb; 100 unsigned int input_mode; 101 unsigned int quad_se_mode; 102 bool det_en; 103 u8 data[3] __aligned(IIO_DMA_MINALIGN); 104 }; 105 106 static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg, 107 unsigned int *val) 108 { 109 int ret; 110 struct spi_transfer t = {0}; 111 112 st->data[0] = ADMV1013_READ | FIELD_PREP(ADMV1013_REG_ADDR_READ_MSK, reg); 113 st->data[1] = 0x0; 114 st->data[2] = 0x0; 115 116 t.rx_buf = &st->data[0]; 117 t.tx_buf = &st->data[0]; 118 t.len = 3; 119 120 ret = spi_sync_transfer(st->spi, &t, 1); 121 if (ret) 122 return ret; 123 124 *val = FIELD_GET(ADMV1013_REG_DATA_MSK, get_unaligned_be24(&st->data[0])); 125 126 return ret; 127 } 128 129 static int admv1013_spi_read(struct admv1013_state *st, unsigned int reg, 130 unsigned int *val) 131 { 132 int ret; 133 134 mutex_lock(&st->lock); 135 ret = __admv1013_spi_read(st, reg, val); 136 mutex_unlock(&st->lock); 137 138 return ret; 139 } 140 141 static int __admv1013_spi_write(struct admv1013_state *st, 142 unsigned int reg, 143 unsigned int val) 144 { 145 put_unaligned_be24(FIELD_PREP(ADMV1013_REG_DATA_MSK, val) | 146 FIELD_PREP(ADMV1013_REG_ADDR_WRITE_MSK, reg), &st->data[0]); 147 148 return spi_write(st->spi, &st->data[0], 3); 149 } 150 151 static int admv1013_spi_write(struct admv1013_state *st, unsigned int reg, 152 unsigned int val) 153 { 154 int ret; 155 156 mutex_lock(&st->lock); 157 ret = __admv1013_spi_write(st, reg, val); 158 mutex_unlock(&st->lock); 159 160 return ret; 161 } 162 163 static int __admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, 164 unsigned int mask, unsigned int val) 165 { 166 int ret; 167 unsigned int data, temp; 168 169 ret = __admv1013_spi_read(st, reg, &data); 170 if (ret) 171 return ret; 172 173 temp = (data & ~mask) | (val & mask); 174 175 return __admv1013_spi_write(st, reg, temp); 176 } 177 178 static int admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, 179 unsigned int mask, unsigned int val) 180 { 181 int ret; 182 183 mutex_lock(&st->lock); 184 ret = __admv1013_spi_update_bits(st, reg, mask, val); 185 mutex_unlock(&st->lock); 186 187 return ret; 188 } 189 190 static int admv1013_read_raw(struct iio_dev *indio_dev, 191 struct iio_chan_spec const *chan, 192 int *val, int *val2, long info) 193 { 194 struct admv1013_state *st = iio_priv(indio_dev); 195 unsigned int data, addr; 196 int ret; 197 198 switch (info) { 199 case IIO_CHAN_INFO_CALIBBIAS: 200 switch (chan->channel) { 201 case IIO_MOD_I: 202 addr = ADMV1013_REG_OFFSET_ADJUST_I; 203 break; 204 case IIO_MOD_Q: 205 addr = ADMV1013_REG_OFFSET_ADJUST_Q; 206 break; 207 default: 208 return -EINVAL; 209 } 210 211 ret = admv1013_spi_read(st, addr, &data); 212 if (ret) 213 return ret; 214 215 if (!chan->channel) 216 *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_P_MSK, data); 217 else 218 *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_N_MSK, data); 219 220 return IIO_VAL_INT; 221 default: 222 return -EINVAL; 223 } 224 } 225 226 static int admv1013_write_raw(struct iio_dev *indio_dev, 227 struct iio_chan_spec const *chan, 228 int val, int val2, long info) 229 { 230 struct admv1013_state *st = iio_priv(indio_dev); 231 unsigned int addr, data, msk; 232 233 switch (info) { 234 case IIO_CHAN_INFO_CALIBBIAS: 235 switch (chan->channel2) { 236 case IIO_MOD_I: 237 addr = ADMV1013_REG_OFFSET_ADJUST_I; 238 break; 239 case IIO_MOD_Q: 240 addr = ADMV1013_REG_OFFSET_ADJUST_Q; 241 break; 242 default: 243 return -EINVAL; 244 } 245 246 if (!chan->channel) { 247 msk = ADMV1013_MIXER_OFF_ADJ_P_MSK; 248 data = FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_P_MSK, val); 249 } else { 250 msk = ADMV1013_MIXER_OFF_ADJ_N_MSK; 251 data = FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_N_MSK, val); 252 } 253 254 return admv1013_spi_update_bits(st, addr, msk, data); 255 default: 256 return -EINVAL; 257 } 258 } 259 260 static ssize_t admv1013_read(struct iio_dev *indio_dev, 261 uintptr_t private, 262 const struct iio_chan_spec *chan, 263 char *buf) 264 { 265 struct admv1013_state *st = iio_priv(indio_dev); 266 unsigned int data, addr; 267 int ret; 268 269 switch ((u32)private) { 270 case ADMV1013_RFMOD_I_CALIBPHASE: 271 addr = ADMV1013_REG_LO_AMP_I; 272 break; 273 case ADMV1013_RFMOD_Q_CALIBPHASE: 274 addr = ADMV1013_REG_LO_AMP_Q; 275 break; 276 default: 277 return -EINVAL; 278 } 279 280 ret = admv1013_spi_read(st, addr, &data); 281 if (ret) 282 return ret; 283 284 data = FIELD_GET(ADMV1013_LOAMP_PH_ADJ_FINE_MSK, data); 285 286 return sysfs_emit(buf, "%u\n", data); 287 } 288 289 static ssize_t admv1013_write(struct iio_dev *indio_dev, 290 uintptr_t private, 291 const struct iio_chan_spec *chan, 292 const char *buf, size_t len) 293 { 294 struct admv1013_state *st = iio_priv(indio_dev); 295 unsigned int data; 296 int ret; 297 298 ret = kstrtou32(buf, 10, &data); 299 if (ret) 300 return ret; 301 302 data = FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_FINE_MSK, data); 303 304 switch ((u32)private) { 305 case ADMV1013_RFMOD_I_CALIBPHASE: 306 ret = admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, 307 ADMV1013_LOAMP_PH_ADJ_FINE_MSK, 308 data); 309 if (ret) 310 return ret; 311 break; 312 case ADMV1013_RFMOD_Q_CALIBPHASE: 313 ret = admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_Q, 314 ADMV1013_LOAMP_PH_ADJ_FINE_MSK, 315 data); 316 if (ret) 317 return ret; 318 break; 319 default: 320 return -EINVAL; 321 } 322 323 return ret ? ret : len; 324 } 325 326 static int admv1013_update_quad_filters(struct admv1013_state *st) 327 { 328 unsigned int filt_raw; 329 u64 rate = clk_get_rate(st->clkin); 330 331 if (rate >= (5400 * HZ_PER_MHZ) && rate <= (7000 * HZ_PER_MHZ)) 332 filt_raw = 15; 333 else if (rate >= (5400 * HZ_PER_MHZ) && rate <= (8000 * HZ_PER_MHZ)) 334 filt_raw = 10; 335 else if (rate >= (6600 * HZ_PER_MHZ) && rate <= (9200 * HZ_PER_MHZ)) 336 filt_raw = 5; 337 else 338 filt_raw = 0; 339 340 return __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, 341 ADMV1013_QUAD_FILTERS_MSK, 342 FIELD_PREP(ADMV1013_QUAD_FILTERS_MSK, filt_raw)); 343 } 344 345 static int admv1013_update_mixer_vgate(struct admv1013_state *st) 346 { 347 unsigned int mixer_vgate; 348 int vcm; 349 350 vcm = regulator_get_voltage(st->reg); 351 if (vcm < 0) 352 return vcm; 353 354 if (vcm < 1800000) 355 mixer_vgate = (2389 * vcm / 1000000 + 8100) / 100; 356 else if (vcm > 1800000 && vcm < 2600000) 357 mixer_vgate = (2375 * vcm / 1000000 + 125) / 100; 358 else 359 return -EINVAL; 360 361 return __admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, 362 ADMV1013_MIXER_VGATE_MSK, 363 FIELD_PREP(ADMV1013_MIXER_VGATE_MSK, mixer_vgate)); 364 } 365 366 static int admv1013_reg_access(struct iio_dev *indio_dev, 367 unsigned int reg, 368 unsigned int write_val, 369 unsigned int *read_val) 370 { 371 struct admv1013_state *st = iio_priv(indio_dev); 372 373 if (read_val) 374 return admv1013_spi_read(st, reg, read_val); 375 else 376 return admv1013_spi_write(st, reg, write_val); 377 } 378 379 static const struct iio_info admv1013_info = { 380 .read_raw = admv1013_read_raw, 381 .write_raw = admv1013_write_raw, 382 .debugfs_reg_access = &admv1013_reg_access, 383 }; 384 385 static const char * const admv1013_vcc_regs[] = { 386 "vcc-drv", "vcc2-drv", "vcc-vva", "vcc-amp1", "vcc-amp2", 387 "vcc-env", "vcc-bg", "vcc-bg2", "vcc-mixer", "vcc-quad" 388 }; 389 390 static int admv1013_freq_change(struct notifier_block *nb, unsigned long action, void *data) 391 { 392 struct admv1013_state *st = container_of(nb, struct admv1013_state, nb); 393 int ret; 394 395 if (action == POST_RATE_CHANGE) { 396 mutex_lock(&st->lock); 397 ret = notifier_from_errno(admv1013_update_quad_filters(st)); 398 mutex_unlock(&st->lock); 399 return ret; 400 } 401 402 return NOTIFY_OK; 403 } 404 405 #define _ADMV1013_EXT_INFO(_name, _shared, _ident) { \ 406 .name = _name, \ 407 .read = admv1013_read, \ 408 .write = admv1013_write, \ 409 .private = _ident, \ 410 .shared = _shared, \ 411 } 412 413 static const struct iio_chan_spec_ext_info admv1013_ext_info[] = { 414 _ADMV1013_EXT_INFO("i_calibphase", IIO_SEPARATE, ADMV1013_RFMOD_I_CALIBPHASE), 415 _ADMV1013_EXT_INFO("q_calibphase", IIO_SEPARATE, ADMV1013_RFMOD_Q_CALIBPHASE), 416 { }, 417 }; 418 419 #define ADMV1013_CHAN_PHASE(_channel, _channel2, _admv1013_ext_info) { \ 420 .type = IIO_ALTVOLTAGE, \ 421 .output = 0, \ 422 .indexed = 1, \ 423 .channel2 = _channel2, \ 424 .channel = _channel, \ 425 .differential = 1, \ 426 .ext_info = _admv1013_ext_info, \ 427 } 428 429 #define ADMV1013_CHAN_CALIB(_channel, rf_comp) { \ 430 .type = IIO_ALTVOLTAGE, \ 431 .output = 0, \ 432 .indexed = 1, \ 433 .channel = _channel, \ 434 .channel2 = IIO_MOD_##rf_comp, \ 435 .info_mask_separate = BIT(IIO_CHAN_INFO_CALIBBIAS), \ 436 } 437 438 static const struct iio_chan_spec admv1013_channels[] = { 439 ADMV1013_CHAN_PHASE(0, 1, admv1013_ext_info), 440 ADMV1013_CHAN_CALIB(0, I), 441 ADMV1013_CHAN_CALIB(0, Q), 442 ADMV1013_CHAN_CALIB(1, I), 443 ADMV1013_CHAN_CALIB(1, Q), 444 }; 445 446 static int admv1013_init(struct admv1013_state *st) 447 { 448 int ret; 449 unsigned int data; 450 struct spi_device *spi = st->spi; 451 452 /* Perform a software reset */ 453 ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, 454 ADMV1013_SPI_SOFT_RESET_MSK, 455 FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 1)); 456 if (ret) 457 return ret; 458 459 ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, 460 ADMV1013_SPI_SOFT_RESET_MSK, 461 FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 0)); 462 if (ret) 463 return ret; 464 465 ret = __admv1013_spi_read(st, ADMV1013_REG_SPI_CONTROL, &data); 466 if (ret) 467 return ret; 468 469 data = FIELD_GET(ADMV1013_CHIP_ID_MSK, data); 470 if (data != ADMV1013_CHIP_ID) { 471 dev_err(&spi->dev, "Invalid Chip ID.\n"); 472 return -EINVAL; 473 } 474 475 ret = __admv1013_spi_write(st, ADMV1013_REG_VVA_TEMP_COMP, 0xE700); 476 if (ret) 477 return ret; 478 479 data = FIELD_PREP(ADMV1013_QUAD_SE_MODE_MSK, st->quad_se_mode); 480 481 ret = __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, 482 ADMV1013_QUAD_SE_MODE_MSK, data); 483 if (ret) 484 return ret; 485 486 ret = admv1013_update_mixer_vgate(st); 487 if (ret) 488 return ret; 489 490 ret = admv1013_update_quad_filters(st); 491 if (ret) 492 return ret; 493 494 return __admv1013_spi_update_bits(st, ADMV1013_REG_ENABLE, 495 ADMV1013_DET_EN_MSK | 496 ADMV1013_MIXER_IF_EN_MSK, 497 st->det_en | 498 st->input_mode); 499 } 500 501 static void admv1013_reg_disable(void *data) 502 { 503 regulator_disable(data); 504 } 505 506 static void admv1013_powerdown(void *data) 507 { 508 unsigned int enable_reg, enable_reg_msk; 509 510 /* Disable all components in the Enable Register */ 511 enable_reg_msk = ADMV1013_VGA_PD_MSK | 512 ADMV1013_MIXER_PD_MSK | 513 ADMV1013_QUAD_PD_MSK | 514 ADMV1013_BG_PD_MSK | 515 ADMV1013_MIXER_IF_EN_MSK | 516 ADMV1013_DET_EN_MSK; 517 518 enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, 1) | 519 FIELD_PREP(ADMV1013_MIXER_PD_MSK, 1) | 520 FIELD_PREP(ADMV1013_QUAD_PD_MSK, 7) | 521 FIELD_PREP(ADMV1013_BG_PD_MSK, 1) | 522 FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, 0) | 523 FIELD_PREP(ADMV1013_DET_EN_MSK, 0); 524 525 admv1013_spi_update_bits(data, ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); 526 } 527 528 static int admv1013_properties_parse(struct admv1013_state *st) 529 { 530 int ret; 531 const char *str; 532 struct spi_device *spi = st->spi; 533 534 st->det_en = device_property_read_bool(&spi->dev, "adi,detector-enable"); 535 536 ret = device_property_read_string(&spi->dev, "adi,input-mode", &str); 537 if (ret) 538 st->input_mode = ADMV1013_IQ_MODE; 539 540 if (!strcmp(str, "iq")) 541 st->input_mode = ADMV1013_IQ_MODE; 542 else if (!strcmp(str, "if")) 543 st->input_mode = ADMV1013_IF_MODE; 544 else 545 return -EINVAL; 546 547 ret = device_property_read_string(&spi->dev, "adi,quad-se-mode", &str); 548 if (ret) 549 st->quad_se_mode = ADMV1013_SE_MODE_DIFF; 550 551 if (!strcmp(str, "diff")) 552 st->quad_se_mode = ADMV1013_SE_MODE_DIFF; 553 else if (!strcmp(str, "se-pos")) 554 st->quad_se_mode = ADMV1013_SE_MODE_POS; 555 else if (!strcmp(str, "se-neg")) 556 st->quad_se_mode = ADMV1013_SE_MODE_NEG; 557 else 558 return -EINVAL; 559 560 st->reg = devm_regulator_get(&spi->dev, "vcm"); 561 if (IS_ERR(st->reg)) 562 return dev_err_probe(&spi->dev, PTR_ERR(st->reg), 563 "failed to get the common-mode voltage\n"); 564 565 ret = devm_regulator_bulk_get_enable(&st->spi->dev, 566 ARRAY_SIZE(admv1013_vcc_regs), 567 admv1013_vcc_regs); 568 if (ret) { 569 dev_err_probe(&spi->dev, ret, 570 "Failed to request VCC regulators\n"); 571 return ret; 572 } 573 574 return 0; 575 } 576 577 static int admv1013_probe(struct spi_device *spi) 578 { 579 struct iio_dev *indio_dev; 580 struct admv1013_state *st; 581 int ret; 582 583 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); 584 if (!indio_dev) 585 return -ENOMEM; 586 587 st = iio_priv(indio_dev); 588 589 indio_dev->info = &admv1013_info; 590 indio_dev->name = "admv1013"; 591 indio_dev->channels = admv1013_channels; 592 indio_dev->num_channels = ARRAY_SIZE(admv1013_channels); 593 594 st->spi = spi; 595 596 ret = admv1013_properties_parse(st); 597 if (ret) 598 return ret; 599 600 ret = regulator_enable(st->reg); 601 if (ret) { 602 dev_err(&spi->dev, "Failed to enable specified Common-Mode Voltage!\n"); 603 return ret; 604 } 605 606 ret = devm_add_action_or_reset(&spi->dev, admv1013_reg_disable, 607 st->reg); 608 if (ret) 609 return ret; 610 611 st->clkin = devm_clk_get_enabled(&spi->dev, "lo_in"); 612 if (IS_ERR(st->clkin)) 613 return dev_err_probe(&spi->dev, PTR_ERR(st->clkin), 614 "failed to get the LO input clock\n"); 615 616 st->nb.notifier_call = admv1013_freq_change; 617 ret = devm_clk_notifier_register(&spi->dev, st->clkin, &st->nb); 618 if (ret) 619 return ret; 620 621 mutex_init(&st->lock); 622 623 ret = admv1013_init(st); 624 if (ret) { 625 dev_err(&spi->dev, "admv1013 init failed\n"); 626 return ret; 627 } 628 629 ret = devm_add_action_or_reset(&spi->dev, admv1013_powerdown, st); 630 if (ret) 631 return ret; 632 633 return devm_iio_device_register(&spi->dev, indio_dev); 634 } 635 636 static const struct spi_device_id admv1013_id[] = { 637 { "admv1013", 0 }, 638 {} 639 }; 640 MODULE_DEVICE_TABLE(spi, admv1013_id); 641 642 static const struct of_device_id admv1013_of_match[] = { 643 { .compatible = "adi,admv1013" }, 644 {}, 645 }; 646 MODULE_DEVICE_TABLE(of, admv1013_of_match); 647 648 static struct spi_driver admv1013_driver = { 649 .driver = { 650 .name = "admv1013", 651 .of_match_table = admv1013_of_match, 652 }, 653 .probe = admv1013_probe, 654 .id_table = admv1013_id, 655 }; 656 module_spi_driver(admv1013_driver); 657 658 MODULE_AUTHOR("Antoniu Miclaus <antoniu.miclaus@analog.com"); 659 MODULE_DESCRIPTION("Analog Devices ADMV1013"); 660 MODULE_LICENSE("GPL v2"); 661