1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Sony CXD2820R demodulator driver 4 * 5 * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> 6 */ 7 8 9 #include "cxd2820r_priv.h" 10 11 /* Write register table */ 12 int cxd2820r_wr_reg_val_mask_tab(struct cxd2820r_priv *priv, 13 const struct reg_val_mask *tab, int tab_len) 14 { 15 struct i2c_client *client = priv->client[0]; 16 int ret; 17 unsigned int i, reg, mask, val; 18 struct regmap *regmap; 19 20 dev_dbg(&client->dev, "tab_len=%d\n", tab_len); 21 22 for (i = 0; i < tab_len; i++) { 23 if ((tab[i].reg >> 16) & 0x1) 24 regmap = priv->regmap[1]; 25 else 26 regmap = priv->regmap[0]; 27 28 reg = (tab[i].reg >> 0) & 0xffff; 29 val = tab[i].val; 30 mask = tab[i].mask; 31 32 if (mask == 0xff) 33 ret = regmap_write(regmap, reg, val); 34 else 35 ret = regmap_write_bits(regmap, reg, mask, val); 36 if (ret) 37 goto error; 38 } 39 40 return 0; 41 error: 42 dev_dbg(&client->dev, "failed=%d\n", ret); 43 return ret; 44 } 45 46 int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio) 47 { 48 struct cxd2820r_priv *priv = fe->demodulator_priv; 49 struct i2c_client *client = priv->client[0]; 50 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 51 int ret, i; 52 u8 tmp0, tmp1; 53 54 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 55 56 /* update GPIOs only when needed */ 57 if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio))) 58 return 0; 59 60 tmp0 = 0x00; 61 tmp1 = 0x00; 62 for (i = 0; i < sizeof(priv->gpio); i++) { 63 /* enable / disable */ 64 if (gpio[i] & CXD2820R_GPIO_E) 65 tmp0 |= (2 << 6) >> (2 * i); 66 else 67 tmp0 |= (1 << 6) >> (2 * i); 68 69 /* input / output */ 70 if (gpio[i] & CXD2820R_GPIO_I) 71 tmp1 |= (1 << (3 + i)); 72 else 73 tmp1 |= (0 << (3 + i)); 74 75 /* high / low */ 76 if (gpio[i] & CXD2820R_GPIO_H) 77 tmp1 |= (1 << (0 + i)); 78 else 79 tmp1 |= (0 << (0 + i)); 80 81 dev_dbg(&client->dev, "gpio i=%d %02x %02x\n", i, tmp0, tmp1); 82 } 83 84 dev_dbg(&client->dev, "wr gpio=%02x %02x\n", tmp0, tmp1); 85 86 /* write bits [7:2] */ 87 ret = regmap_update_bits(priv->regmap[0], 0x0089, 0xfc, tmp0); 88 if (ret) 89 goto error; 90 91 /* write bits [5:0] */ 92 ret = regmap_update_bits(priv->regmap[0], 0x008e, 0x3f, tmp1); 93 if (ret) 94 goto error; 95 96 memcpy(priv->gpio, gpio, sizeof(priv->gpio)); 97 98 return ret; 99 error: 100 dev_dbg(&client->dev, "failed=%d\n", ret); 101 return ret; 102 } 103 104 static int cxd2820r_set_frontend(struct dvb_frontend *fe) 105 { 106 struct cxd2820r_priv *priv = fe->demodulator_priv; 107 struct i2c_client *client = priv->client[0]; 108 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 109 int ret; 110 111 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 112 113 switch (c->delivery_system) { 114 case SYS_DVBT: 115 ret = cxd2820r_init_t(fe); 116 if (ret < 0) 117 goto err; 118 ret = cxd2820r_set_frontend_t(fe); 119 if (ret < 0) 120 goto err; 121 break; 122 case SYS_DVBT2: 123 ret = cxd2820r_init_t(fe); 124 if (ret < 0) 125 goto err; 126 ret = cxd2820r_set_frontend_t2(fe); 127 if (ret < 0) 128 goto err; 129 break; 130 case SYS_DVBC_ANNEX_A: 131 ret = cxd2820r_init_c(fe); 132 if (ret < 0) 133 goto err; 134 ret = cxd2820r_set_frontend_c(fe); 135 if (ret < 0) 136 goto err; 137 break; 138 default: 139 dev_dbg(&client->dev, "invalid delivery_system\n"); 140 ret = -EINVAL; 141 break; 142 } 143 err: 144 return ret; 145 } 146 147 static int cxd2820r_read_status(struct dvb_frontend *fe, enum fe_status *status) 148 { 149 struct cxd2820r_priv *priv = fe->demodulator_priv; 150 struct i2c_client *client = priv->client[0]; 151 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 152 int ret; 153 154 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 155 156 switch (c->delivery_system) { 157 case SYS_DVBT: 158 ret = cxd2820r_read_status_t(fe, status); 159 break; 160 case SYS_DVBT2: 161 ret = cxd2820r_read_status_t2(fe, status); 162 break; 163 case SYS_DVBC_ANNEX_A: 164 ret = cxd2820r_read_status_c(fe, status); 165 break; 166 default: 167 ret = -EINVAL; 168 break; 169 } 170 return ret; 171 } 172 173 static int cxd2820r_get_frontend(struct dvb_frontend *fe, 174 struct dtv_frontend_properties *p) 175 { 176 struct cxd2820r_priv *priv = fe->demodulator_priv; 177 struct i2c_client *client = priv->client[0]; 178 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 179 int ret; 180 181 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 182 183 if (priv->delivery_system == SYS_UNDEFINED) 184 return 0; 185 186 switch (c->delivery_system) { 187 case SYS_DVBT: 188 ret = cxd2820r_get_frontend_t(fe, p); 189 break; 190 case SYS_DVBT2: 191 ret = cxd2820r_get_frontend_t2(fe, p); 192 break; 193 case SYS_DVBC_ANNEX_A: 194 ret = cxd2820r_get_frontend_c(fe, p); 195 break; 196 default: 197 ret = -EINVAL; 198 break; 199 } 200 return ret; 201 } 202 203 static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber) 204 { 205 struct cxd2820r_priv *priv = fe->demodulator_priv; 206 struct i2c_client *client = priv->client[0]; 207 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 208 209 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 210 211 *ber = (priv->post_bit_error - priv->post_bit_error_prev_dvbv3); 212 priv->post_bit_error_prev_dvbv3 = priv->post_bit_error; 213 214 return 0; 215 } 216 217 static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength) 218 { 219 struct cxd2820r_priv *priv = fe->demodulator_priv; 220 struct i2c_client *client = priv->client[0]; 221 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 222 223 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 224 225 if (c->strength.stat[0].scale == FE_SCALE_RELATIVE) 226 *strength = c->strength.stat[0].uvalue; 227 else 228 *strength = 0; 229 230 return 0; 231 } 232 233 static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr) 234 { 235 struct cxd2820r_priv *priv = fe->demodulator_priv; 236 struct i2c_client *client = priv->client[0]; 237 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 238 239 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 240 241 if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL) 242 *snr = div_s64(c->cnr.stat[0].svalue, 100); 243 else 244 *snr = 0; 245 246 return 0; 247 } 248 249 static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 250 { 251 struct cxd2820r_priv *priv = fe->demodulator_priv; 252 struct i2c_client *client = priv->client[0]; 253 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 254 255 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 256 257 *ucblocks = 0; 258 259 return 0; 260 } 261 262 static int cxd2820r_init(struct dvb_frontend *fe) 263 { 264 return 0; 265 } 266 267 static int cxd2820r_sleep(struct dvb_frontend *fe) 268 { 269 struct cxd2820r_priv *priv = fe->demodulator_priv; 270 struct i2c_client *client = priv->client[0]; 271 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 272 int ret; 273 274 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 275 276 switch (c->delivery_system) { 277 case SYS_DVBT: 278 ret = cxd2820r_sleep_t(fe); 279 break; 280 case SYS_DVBT2: 281 ret = cxd2820r_sleep_t2(fe); 282 break; 283 case SYS_DVBC_ANNEX_A: 284 ret = cxd2820r_sleep_c(fe); 285 break; 286 default: 287 ret = -EINVAL; 288 break; 289 } 290 return ret; 291 } 292 293 static int cxd2820r_get_tune_settings(struct dvb_frontend *fe, 294 struct dvb_frontend_tune_settings *s) 295 { 296 struct cxd2820r_priv *priv = fe->demodulator_priv; 297 struct i2c_client *client = priv->client[0]; 298 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 299 int ret; 300 301 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 302 303 switch (c->delivery_system) { 304 case SYS_DVBT: 305 ret = cxd2820r_get_tune_settings_t(fe, s); 306 break; 307 case SYS_DVBT2: 308 ret = cxd2820r_get_tune_settings_t2(fe, s); 309 break; 310 case SYS_DVBC_ANNEX_A: 311 ret = cxd2820r_get_tune_settings_c(fe, s); 312 break; 313 default: 314 ret = -EINVAL; 315 break; 316 } 317 return ret; 318 } 319 320 static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe) 321 { 322 struct cxd2820r_priv *priv = fe->demodulator_priv; 323 struct i2c_client *client = priv->client[0]; 324 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 325 int ret, i; 326 enum fe_status status = 0; 327 328 dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system); 329 330 /* switch between DVB-T and DVB-T2 when tune fails */ 331 if (priv->last_tune_failed) { 332 if (priv->delivery_system == SYS_DVBT) { 333 ret = cxd2820r_sleep_t(fe); 334 if (ret) 335 goto error; 336 337 c->delivery_system = SYS_DVBT2; 338 } else if (priv->delivery_system == SYS_DVBT2) { 339 ret = cxd2820r_sleep_t2(fe); 340 if (ret) 341 goto error; 342 343 c->delivery_system = SYS_DVBT; 344 } 345 } 346 347 /* set frontend */ 348 ret = cxd2820r_set_frontend(fe); 349 if (ret) 350 goto error; 351 352 /* frontend lock wait loop count */ 353 switch (priv->delivery_system) { 354 case SYS_DVBT: 355 case SYS_DVBC_ANNEX_A: 356 i = 20; 357 break; 358 case SYS_DVBT2: 359 i = 40; 360 break; 361 case SYS_UNDEFINED: 362 default: 363 i = 0; 364 break; 365 } 366 367 /* wait frontend lock */ 368 for (; i > 0; i--) { 369 dev_dbg(&client->dev, "loop=%d\n", i); 370 msleep(50); 371 ret = cxd2820r_read_status(fe, &status); 372 if (ret) 373 goto error; 374 375 if (status & FE_HAS_LOCK) 376 break; 377 } 378 379 /* check if we have a valid signal */ 380 if (status & FE_HAS_LOCK) { 381 priv->last_tune_failed = false; 382 return DVBFE_ALGO_SEARCH_SUCCESS; 383 } else { 384 priv->last_tune_failed = true; 385 return DVBFE_ALGO_SEARCH_AGAIN; 386 } 387 388 error: 389 dev_dbg(&client->dev, "failed=%d\n", ret); 390 return DVBFE_ALGO_SEARCH_ERROR; 391 } 392 393 static enum dvbfe_algo cxd2820r_get_frontend_algo(struct dvb_frontend *fe) 394 { 395 return DVBFE_ALGO_CUSTOM; 396 } 397 398 static void cxd2820r_release(struct dvb_frontend *fe) 399 { 400 struct cxd2820r_priv *priv = fe->demodulator_priv; 401 struct i2c_client *client = priv->client[0]; 402 403 dev_dbg(&client->dev, "\n"); 404 405 i2c_unregister_device(client); 406 407 return; 408 } 409 410 static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) 411 { 412 struct cxd2820r_priv *priv = fe->demodulator_priv; 413 struct i2c_client *client = priv->client[0]; 414 415 dev_dbg_ratelimited(&client->dev, "enable=%d\n", enable); 416 417 return regmap_update_bits(priv->regmap[0], 0x00db, 0x01, enable ? 1 : 0); 418 } 419 420 #ifdef CONFIG_GPIOLIB 421 static int cxd2820r_gpio_direction_output(struct gpio_chip *chip, unsigned nr, 422 int val) 423 { 424 struct cxd2820r_priv *priv = gpiochip_get_data(chip); 425 struct i2c_client *client = priv->client[0]; 426 u8 gpio[GPIO_COUNT]; 427 428 dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val); 429 430 memcpy(gpio, priv->gpio, sizeof(gpio)); 431 gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2); 432 433 return cxd2820r_gpio(&priv->fe, gpio); 434 } 435 436 static void cxd2820r_gpio_set(struct gpio_chip *chip, unsigned nr, int val) 437 { 438 struct cxd2820r_priv *priv = gpiochip_get_data(chip); 439 struct i2c_client *client = priv->client[0]; 440 u8 gpio[GPIO_COUNT]; 441 442 dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val); 443 444 memcpy(gpio, priv->gpio, sizeof(gpio)); 445 gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2); 446 447 (void) cxd2820r_gpio(&priv->fe, gpio); 448 449 return; 450 } 451 452 static int cxd2820r_gpio_get(struct gpio_chip *chip, unsigned nr) 453 { 454 struct cxd2820r_priv *priv = gpiochip_get_data(chip); 455 struct i2c_client *client = priv->client[0]; 456 457 dev_dbg(&client->dev, "nr=%u\n", nr); 458 459 return (priv->gpio[nr] >> 2) & 0x01; 460 } 461 #endif 462 463 static const struct dvb_frontend_ops cxd2820r_ops = { 464 .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A }, 465 /* default: DVB-T/T2 */ 466 .info = { 467 .name = "Sony CXD2820R", 468 469 .caps = FE_CAN_FEC_1_2 | 470 FE_CAN_FEC_2_3 | 471 FE_CAN_FEC_3_4 | 472 FE_CAN_FEC_5_6 | 473 FE_CAN_FEC_7_8 | 474 FE_CAN_FEC_AUTO | 475 FE_CAN_QPSK | 476 FE_CAN_QAM_16 | 477 FE_CAN_QAM_32 | 478 FE_CAN_QAM_64 | 479 FE_CAN_QAM_128 | 480 FE_CAN_QAM_256 | 481 FE_CAN_QAM_AUTO | 482 FE_CAN_TRANSMISSION_MODE_AUTO | 483 FE_CAN_GUARD_INTERVAL_AUTO | 484 FE_CAN_HIERARCHY_AUTO | 485 FE_CAN_MUTE_TS | 486 FE_CAN_2G_MODULATION | 487 FE_CAN_MULTISTREAM 488 }, 489 490 .release = cxd2820r_release, 491 .init = cxd2820r_init, 492 .sleep = cxd2820r_sleep, 493 494 .get_tune_settings = cxd2820r_get_tune_settings, 495 .i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl, 496 497 .get_frontend = cxd2820r_get_frontend, 498 499 .get_frontend_algo = cxd2820r_get_frontend_algo, 500 .search = cxd2820r_search, 501 502 .read_status = cxd2820r_read_status, 503 .read_snr = cxd2820r_read_snr, 504 .read_ber = cxd2820r_read_ber, 505 .read_ucblocks = cxd2820r_read_ucblocks, 506 .read_signal_strength = cxd2820r_read_signal_strength, 507 }; 508 509 /* 510 * XXX: That is wrapper to cxd2820r_probe() via driver core in order to provide 511 * proper I2C client for legacy media attach binding. 512 * New users must use I2C client binding directly! 513 */ 514 struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *config, 515 struct i2c_adapter *adapter, 516 int *gpio_chip_base) 517 { 518 struct i2c_client *client; 519 struct i2c_board_info board_info; 520 struct cxd2820r_platform_data pdata; 521 522 pdata.ts_mode = config->ts_mode; 523 pdata.ts_clk_inv = config->ts_clock_inv; 524 pdata.if_agc_polarity = config->if_agc_polarity; 525 pdata.spec_inv = config->spec_inv; 526 pdata.gpio_chip_base = &gpio_chip_base; 527 pdata.attach_in_use = true; 528 529 memset(&board_info, 0, sizeof(board_info)); 530 strscpy(board_info.type, "cxd2820r", I2C_NAME_SIZE); 531 board_info.addr = config->i2c_address; 532 board_info.platform_data = &pdata; 533 client = i2c_new_client_device(adapter, &board_info); 534 if (!i2c_client_has_driver(client)) 535 return NULL; 536 537 return pdata.get_dvb_frontend(client); 538 } 539 EXPORT_SYMBOL(cxd2820r_attach); 540 541 static struct dvb_frontend *cxd2820r_get_dvb_frontend(struct i2c_client *client) 542 { 543 struct cxd2820r_priv *priv = i2c_get_clientdata(client); 544 545 dev_dbg(&client->dev, "\n"); 546 547 return &priv->fe; 548 } 549 550 static int cxd2820r_probe(struct i2c_client *client) 551 { 552 struct cxd2820r_platform_data *pdata = client->dev.platform_data; 553 struct cxd2820r_priv *priv; 554 int ret, *gpio_chip_base; 555 unsigned int utmp; 556 static const struct regmap_range_cfg regmap_range_cfg0[] = { 557 { 558 .range_min = 0x0000, 559 .range_max = 0x3fff, 560 .selector_reg = 0x00, 561 .selector_mask = 0xff, 562 .selector_shift = 0, 563 .window_start = 0x00, 564 .window_len = 0x100, 565 }, 566 }; 567 static const struct regmap_range_cfg regmap_range_cfg1[] = { 568 { 569 .range_min = 0x0000, 570 .range_max = 0x01ff, 571 .selector_reg = 0x00, 572 .selector_mask = 0xff, 573 .selector_shift = 0, 574 .window_start = 0x00, 575 .window_len = 0x100, 576 }, 577 }; 578 static const struct regmap_config regmap_config0 = { 579 .reg_bits = 8, 580 .val_bits = 8, 581 .max_register = 0x3fff, 582 .ranges = regmap_range_cfg0, 583 .num_ranges = ARRAY_SIZE(regmap_range_cfg0), 584 .cache_type = REGCACHE_NONE, 585 }; 586 static const struct regmap_config regmap_config1 = { 587 .reg_bits = 8, 588 .val_bits = 8, 589 .max_register = 0x01ff, 590 .ranges = regmap_range_cfg1, 591 .num_ranges = ARRAY_SIZE(regmap_range_cfg1), 592 .cache_type = REGCACHE_NONE, 593 }; 594 595 dev_dbg(&client->dev, "\n"); 596 597 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 598 if (!priv) { 599 ret = -ENOMEM; 600 goto err; 601 } 602 603 priv->client[0] = client; 604 priv->fe.demodulator_priv = priv; 605 priv->i2c = client->adapter; 606 priv->ts_mode = pdata->ts_mode; 607 priv->ts_clk_inv = pdata->ts_clk_inv; 608 priv->if_agc_polarity = pdata->if_agc_polarity; 609 priv->spec_inv = pdata->spec_inv; 610 gpio_chip_base = *pdata->gpio_chip_base; 611 priv->regmap[0] = regmap_init_i2c(priv->client[0], ®map_config0); 612 if (IS_ERR(priv->regmap[0])) { 613 ret = PTR_ERR(priv->regmap[0]); 614 goto err_kfree; 615 } 616 617 /* Check demod answers with correct chip id */ 618 ret = regmap_read(priv->regmap[0], 0x00fd, &utmp); 619 if (ret) 620 goto err_regmap_0_regmap_exit; 621 622 dev_dbg(&client->dev, "chip_id=%02x\n", utmp); 623 624 if (utmp != 0xe1) { 625 ret = -ENODEV; 626 goto err_regmap_0_regmap_exit; 627 } 628 629 /* 630 * Chip has two I2C addresses for different register banks. We register 631 * one dummy I2C client in order to get own I2C client for each 632 * register bank. 633 */ 634 priv->client[1] = i2c_new_dummy_device(client->adapter, client->addr | (1 << 1)); 635 if (IS_ERR(priv->client[1])) { 636 ret = PTR_ERR(priv->client[1]); 637 dev_err(&client->dev, "I2C registration failed\n"); 638 goto err_regmap_0_regmap_exit; 639 } 640 641 priv->regmap[1] = regmap_init_i2c(priv->client[1], ®map_config1); 642 if (IS_ERR(priv->regmap[1])) { 643 ret = PTR_ERR(priv->regmap[1]); 644 goto err_client_1_i2c_unregister_device; 645 } 646 647 if (gpio_chip_base) { 648 #ifdef CONFIG_GPIOLIB 649 /* Add GPIOs */ 650 priv->gpio_chip.label = KBUILD_MODNAME; 651 priv->gpio_chip.parent = &client->dev; 652 priv->gpio_chip.owner = THIS_MODULE; 653 priv->gpio_chip.direction_output = cxd2820r_gpio_direction_output; 654 priv->gpio_chip.set = cxd2820r_gpio_set; 655 priv->gpio_chip.get = cxd2820r_gpio_get; 656 priv->gpio_chip.base = -1; /* Dynamic allocation */ 657 priv->gpio_chip.ngpio = GPIO_COUNT; 658 priv->gpio_chip.can_sleep = 1; 659 ret = gpiochip_add_data(&priv->gpio_chip, priv); 660 if (ret) 661 goto err_regmap_1_regmap_exit; 662 663 dev_dbg(&client->dev, "gpio_chip.base=%d\n", 664 priv->gpio_chip.base); 665 666 *gpio_chip_base = priv->gpio_chip.base; 667 #else 668 /* 669 * Use static GPIO configuration if GPIOLIB is undefined. 670 * This is fallback condition. 671 */ 672 u8 gpio[GPIO_COUNT]; 673 gpio[0] = (*gpio_chip_base >> 0) & 0x07; 674 gpio[1] = (*gpio_chip_base >> 3) & 0x07; 675 gpio[2] = 0; 676 ret = cxd2820r_gpio(&priv->fe, gpio); 677 if (ret) 678 goto err_regmap_1_regmap_exit; 679 #endif 680 } 681 682 /* Create dvb frontend */ 683 memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops)); 684 if (!pdata->attach_in_use) 685 priv->fe.ops.release = NULL; 686 i2c_set_clientdata(client, priv); 687 688 /* Setup callbacks */ 689 pdata->get_dvb_frontend = cxd2820r_get_dvb_frontend; 690 691 dev_info(&client->dev, "Sony CXD2820R successfully identified\n"); 692 693 return 0; 694 err_regmap_1_regmap_exit: 695 regmap_exit(priv->regmap[1]); 696 err_client_1_i2c_unregister_device: 697 i2c_unregister_device(priv->client[1]); 698 err_regmap_0_regmap_exit: 699 regmap_exit(priv->regmap[0]); 700 err_kfree: 701 kfree(priv); 702 err: 703 dev_dbg(&client->dev, "failed=%d\n", ret); 704 return ret; 705 } 706 707 static void cxd2820r_remove(struct i2c_client *client) 708 { 709 struct cxd2820r_priv *priv = i2c_get_clientdata(client); 710 711 dev_dbg(&client->dev, "\n"); 712 713 #ifdef CONFIG_GPIOLIB 714 if (priv->gpio_chip.label) 715 gpiochip_remove(&priv->gpio_chip); 716 #endif 717 regmap_exit(priv->regmap[1]); 718 i2c_unregister_device(priv->client[1]); 719 720 regmap_exit(priv->regmap[0]); 721 722 kfree(priv); 723 } 724 725 static const struct i2c_device_id cxd2820r_id_table[] = { 726 {"cxd2820r", 0}, 727 {} 728 }; 729 MODULE_DEVICE_TABLE(i2c, cxd2820r_id_table); 730 731 static struct i2c_driver cxd2820r_driver = { 732 .driver = { 733 .name = "cxd2820r", 734 .suppress_bind_attrs = true, 735 }, 736 .probe = cxd2820r_probe, 737 .remove = cxd2820r_remove, 738 .id_table = cxd2820r_id_table, 739 }; 740 741 module_i2c_driver(cxd2820r_driver); 742 743 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 744 MODULE_DESCRIPTION("Sony CXD2820R demodulator driver"); 745 MODULE_LICENSE("GPL"); 746