1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // ALSA SoC Texas Instruments TAS2563/TAS2781 Audio Smart Amplifier 4 // 5 // Copyright (C) 2022 - 2023 Texas Instruments Incorporated 6 // https://www.ti.com 7 // 8 // The TAS2563/TAS2781 driver implements a flexible and configurable 9 // algo coefficient setting for one, two, or even multiple 10 // TAS2563/TAS2781 chips. 11 // 12 // Author: Shenghao Ding <shenghao-ding@ti.com> 13 // Author: Kevin Lu <kevin-lu@ti.com> 14 // 15 16 #include <linux/crc8.h> 17 #include <linux/firmware.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/i2c.h> 20 #include <linux/init.h> 21 #include <linux/interrupt.h> 22 #include <linux/module.h> 23 #include <linux/of.h> 24 #include <linux/of_gpio.h> 25 #include <linux/of_irq.h> 26 #include <linux/regmap.h> 27 #include <linux/slab.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/tas2781.h> 31 #include <sound/tlv.h> 32 #include <sound/tas2781-tlv.h> 33 34 static const struct i2c_device_id tasdevice_id[] = { 35 { "tas2563", TAS2563 }, 36 { "tas2781", TAS2781 }, 37 {} 38 }; 39 MODULE_DEVICE_TABLE(i2c, tasdevice_id); 40 41 #ifdef CONFIG_OF 42 static const struct of_device_id tasdevice_of_match[] = { 43 { .compatible = "ti,tas2563" }, 44 { .compatible = "ti,tas2781" }, 45 {}, 46 }; 47 MODULE_DEVICE_TABLE(of, tasdevice_of_match); 48 #endif 49 50 /** 51 * tas2781_digital_getvol - get the volum control 52 * @kcontrol: control pointer 53 * @ucontrol: User data 54 * Customer Kcontrol for tas2781 is primarily for regmap booking, paging 55 * depends on internal regmap mechanism. 56 * tas2781 contains book and page two-level register map, especially 57 * book switching will set the register BXXP00R7F, after switching to the 58 * correct book, then leverage the mechanism for paging to access the 59 * register. 60 */ 61 static int tas2781_digital_getvol(struct snd_kcontrol *kcontrol, 62 struct snd_ctl_elem_value *ucontrol) 63 { 64 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 65 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 66 struct soc_mixer_control *mc = 67 (struct soc_mixer_control *)kcontrol->private_value; 68 69 return tasdevice_digital_getvol(tas_priv, ucontrol, mc); 70 } 71 72 static int tas2781_digital_putvol(struct snd_kcontrol *kcontrol, 73 struct snd_ctl_elem_value *ucontrol) 74 { 75 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 76 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 77 struct soc_mixer_control *mc = 78 (struct soc_mixer_control *)kcontrol->private_value; 79 80 return tasdevice_digital_putvol(tas_priv, ucontrol, mc); 81 } 82 83 static int tas2781_amp_getvol(struct snd_kcontrol *kcontrol, 84 struct snd_ctl_elem_value *ucontrol) 85 { 86 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 87 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 88 struct soc_mixer_control *mc = 89 (struct soc_mixer_control *)kcontrol->private_value; 90 91 return tasdevice_amp_getvol(tas_priv, ucontrol, mc); 92 } 93 94 static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol, 95 struct snd_ctl_elem_value *ucontrol) 96 { 97 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 98 struct tasdevice_priv *tas_priv = 99 snd_soc_component_get_drvdata(codec); 100 struct soc_mixer_control *mc = 101 (struct soc_mixer_control *)kcontrol->private_value; 102 103 return tasdevice_amp_putvol(tas_priv, ucontrol, mc); 104 } 105 106 static int tas2781_force_fwload_get(struct snd_kcontrol *kcontrol, 107 struct snd_ctl_elem_value *ucontrol) 108 { 109 struct snd_soc_component *component = 110 snd_soc_kcontrol_component(kcontrol); 111 struct tasdevice_priv *tas_priv = 112 snd_soc_component_get_drvdata(component); 113 114 ucontrol->value.integer.value[0] = (int)tas_priv->force_fwload_status; 115 dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, 116 tas_priv->force_fwload_status ? "ON" : "OFF"); 117 118 return 0; 119 } 120 121 static int tas2781_force_fwload_put(struct snd_kcontrol *kcontrol, 122 struct snd_ctl_elem_value *ucontrol) 123 { 124 struct snd_soc_component *component = 125 snd_soc_kcontrol_component(kcontrol); 126 struct tasdevice_priv *tas_priv = 127 snd_soc_component_get_drvdata(component); 128 bool change, val = (bool)ucontrol->value.integer.value[0]; 129 130 if (tas_priv->force_fwload_status == val) 131 change = false; 132 else { 133 change = true; 134 tas_priv->force_fwload_status = val; 135 } 136 dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, 137 tas_priv->force_fwload_status ? "ON" : "OFF"); 138 139 return change; 140 } 141 142 static const struct snd_kcontrol_new tas2781_snd_controls[] = { 143 SOC_SINGLE_RANGE_EXT_TLV("Speaker Analog Gain", TAS2781_AMP_LEVEL, 144 1, 0, 20, 0, tas2781_amp_getvol, 145 tas2781_amp_putvol, amp_vol_tlv), 146 SOC_SINGLE_RANGE_EXT_TLV("Speaker Digital Gain", TAS2781_DVC_LVL, 147 0, 0, 200, 1, tas2781_digital_getvol, 148 tas2781_digital_putvol, dvc_tlv), 149 SOC_SINGLE_BOOL_EXT("Speaker Force Firmware Load", 0, 150 tas2781_force_fwload_get, tas2781_force_fwload_put), 151 }; 152 153 static int tasdevice_set_profile_id(struct snd_kcontrol *kcontrol, 154 struct snd_ctl_elem_value *ucontrol) 155 { 156 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 157 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 158 int ret = 0; 159 160 if (tas_priv->rcabin.profile_cfg_id != 161 ucontrol->value.integer.value[0]) { 162 tas_priv->rcabin.profile_cfg_id = 163 ucontrol->value.integer.value[0]; 164 ret = 1; 165 } 166 167 return ret; 168 } 169 170 static int tasdevice_info_programs(struct snd_kcontrol *kcontrol, 171 struct snd_ctl_elem_info *uinfo) 172 { 173 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 174 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 175 struct tasdevice_fw *tas_fw = tas_priv->fmw; 176 177 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 178 uinfo->count = 1; 179 uinfo->value.integer.min = 0; 180 uinfo->value.integer.max = (int)tas_fw->nr_programs; 181 182 return 0; 183 } 184 185 static int tasdevice_info_configurations( 186 struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 187 { 188 struct snd_soc_component *codec = 189 snd_soc_kcontrol_component(kcontrol); 190 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 191 struct tasdevice_fw *tas_fw = tas_priv->fmw; 192 193 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 194 uinfo->count = 1; 195 uinfo->value.integer.min = 0; 196 uinfo->value.integer.max = (int)tas_fw->nr_configurations - 1; 197 198 return 0; 199 } 200 201 static int tasdevice_info_profile(struct snd_kcontrol *kcontrol, 202 struct snd_ctl_elem_info *uinfo) 203 { 204 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 205 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 206 207 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 208 uinfo->count = 1; 209 uinfo->value.integer.min = 0; 210 uinfo->value.integer.max = tas_priv->rcabin.ncfgs - 1; 211 212 return 0; 213 } 214 215 static int tasdevice_get_profile_id(struct snd_kcontrol *kcontrol, 216 struct snd_ctl_elem_value *ucontrol) 217 { 218 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 219 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 220 221 ucontrol->value.integer.value[0] = tas_priv->rcabin.profile_cfg_id; 222 223 return 0; 224 } 225 226 static int tasdevice_create_control(struct tasdevice_priv *tas_priv) 227 { 228 struct snd_kcontrol_new *prof_ctrls; 229 int nr_controls = 1; 230 int mix_index = 0; 231 int ret; 232 char *name; 233 234 prof_ctrls = devm_kcalloc(tas_priv->dev, nr_controls, 235 sizeof(prof_ctrls[0]), GFP_KERNEL); 236 if (!prof_ctrls) { 237 ret = -ENOMEM; 238 goto out; 239 } 240 241 /* Create a mixer item for selecting the active profile */ 242 name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 243 GFP_KERNEL); 244 if (!name) { 245 ret = -ENOMEM; 246 goto out; 247 } 248 scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "Speaker Profile Id"); 249 prof_ctrls[mix_index].name = name; 250 prof_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 251 prof_ctrls[mix_index].info = tasdevice_info_profile; 252 prof_ctrls[mix_index].get = tasdevice_get_profile_id; 253 prof_ctrls[mix_index].put = tasdevice_set_profile_id; 254 mix_index++; 255 256 ret = snd_soc_add_component_controls(tas_priv->codec, 257 prof_ctrls, nr_controls < mix_index ? nr_controls : mix_index); 258 259 out: 260 return ret; 261 } 262 263 static int tasdevice_program_get(struct snd_kcontrol *kcontrol, 264 struct snd_ctl_elem_value *ucontrol) 265 { 266 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 267 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 268 269 ucontrol->value.integer.value[0] = tas_priv->cur_prog; 270 271 return 0; 272 } 273 274 static int tasdevice_program_put(struct snd_kcontrol *kcontrol, 275 struct snd_ctl_elem_value *ucontrol) 276 { 277 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 278 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 279 unsigned int nr_program = ucontrol->value.integer.value[0]; 280 int ret = 0; 281 282 if (tas_priv->cur_prog != nr_program) { 283 tas_priv->cur_prog = nr_program; 284 ret = 1; 285 } 286 287 return ret; 288 } 289 290 static int tasdevice_configuration_get(struct snd_kcontrol *kcontrol, 291 struct snd_ctl_elem_value *ucontrol) 292 { 293 294 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 295 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 296 297 ucontrol->value.integer.value[0] = tas_priv->cur_conf; 298 299 return 0; 300 } 301 302 static int tasdevice_configuration_put( 303 struct snd_kcontrol *kcontrol, 304 struct snd_ctl_elem_value *ucontrol) 305 { 306 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 307 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 308 unsigned int nr_configuration = ucontrol->value.integer.value[0]; 309 int ret = 0; 310 311 if (tas_priv->cur_conf != nr_configuration) { 312 tas_priv->cur_conf = nr_configuration; 313 ret = 1; 314 } 315 316 return ret; 317 } 318 319 static int tasdevice_dsp_create_ctrls( 320 struct tasdevice_priv *tas_priv) 321 { 322 struct snd_kcontrol_new *dsp_ctrls; 323 char *prog_name, *conf_name; 324 int nr_controls = 2; 325 int mix_index = 0; 326 int ret; 327 328 /* Alloc kcontrol via devm_kzalloc, which don't manually 329 * free the kcontrol 330 */ 331 dsp_ctrls = devm_kcalloc(tas_priv->dev, nr_controls, 332 sizeof(dsp_ctrls[0]), GFP_KERNEL); 333 if (!dsp_ctrls) { 334 ret = -ENOMEM; 335 goto out; 336 } 337 338 /* Create a mixer item for selecting the active profile */ 339 prog_name = devm_kzalloc(tas_priv->dev, 340 SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL); 341 conf_name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 342 GFP_KERNEL); 343 if (!prog_name || !conf_name) { 344 ret = -ENOMEM; 345 goto out; 346 } 347 348 scnprintf(prog_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 349 "Speaker Program Id"); 350 dsp_ctrls[mix_index].name = prog_name; 351 dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 352 dsp_ctrls[mix_index].info = tasdevice_info_programs; 353 dsp_ctrls[mix_index].get = tasdevice_program_get; 354 dsp_ctrls[mix_index].put = tasdevice_program_put; 355 mix_index++; 356 357 scnprintf(conf_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 358 "Speaker Config Id"); 359 dsp_ctrls[mix_index].name = conf_name; 360 dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 361 dsp_ctrls[mix_index].info = tasdevice_info_configurations; 362 dsp_ctrls[mix_index].get = tasdevice_configuration_get; 363 dsp_ctrls[mix_index].put = tasdevice_configuration_put; 364 mix_index++; 365 366 ret = snd_soc_add_component_controls(tas_priv->codec, dsp_ctrls, 367 nr_controls < mix_index ? nr_controls : mix_index); 368 369 out: 370 return ret; 371 } 372 373 static void tasdevice_fw_ready(const struct firmware *fmw, 374 void *context) 375 { 376 struct tasdevice_priv *tas_priv = context; 377 int ret = 0; 378 int i; 379 380 mutex_lock(&tas_priv->codec_lock); 381 382 ret = tasdevice_rca_parser(tas_priv, fmw); 383 if (ret) 384 goto out; 385 tasdevice_create_control(tas_priv); 386 387 tasdevice_dsp_remove(tas_priv); 388 tasdevice_calbin_remove(tas_priv); 389 tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING; 390 scnprintf(tas_priv->coef_binaryname, 64, "%s_coef.bin", 391 tas_priv->dev_name); 392 ret = tasdevice_dsp_parser(tas_priv); 393 if (ret) { 394 dev_err(tas_priv->dev, "dspfw load %s error\n", 395 tas_priv->coef_binaryname); 396 tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL; 397 goto out; 398 } 399 tasdevice_dsp_create_ctrls(tas_priv); 400 401 tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK; 402 403 /* If calibrated data occurs error, dsp will still works with default 404 * calibrated data inside algo. 405 */ 406 for (i = 0; i < tas_priv->ndev; i++) { 407 scnprintf(tas_priv->cal_binaryname[i], 64, "%s_cal_0x%02x.bin", 408 tas_priv->dev_name, tas_priv->tasdevice[i].dev_addr); 409 ret = tas2781_load_calibration(tas_priv, 410 tas_priv->cal_binaryname[i], i); 411 if (ret != 0) 412 dev_err(tas_priv->dev, 413 "%s: load %s error, default will effect\n", 414 __func__, tas_priv->cal_binaryname[i]); 415 } 416 417 tasdevice_prmg_calibdata_load(tas_priv, 0); 418 tas_priv->cur_prog = 0; 419 out: 420 if (tas_priv->fw_state == TASDEVICE_DSP_FW_FAIL) { 421 /*If DSP FW fail, kcontrol won't be created */ 422 tasdevice_config_info_remove(tas_priv); 423 tasdevice_dsp_remove(tas_priv); 424 } 425 mutex_unlock(&tas_priv->codec_lock); 426 if (fmw) 427 release_firmware(fmw); 428 } 429 430 static int tasdevice_dapm_event(struct snd_soc_dapm_widget *w, 431 struct snd_kcontrol *kcontrol, int event) 432 { 433 struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm); 434 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 435 int state = 0; 436 437 /* Codec Lock Hold */ 438 mutex_lock(&tas_priv->codec_lock); 439 if (event == SND_SOC_DAPM_PRE_PMD) 440 state = 1; 441 tasdevice_tuning_switch(tas_priv, state); 442 /* Codec Lock Release*/ 443 mutex_unlock(&tas_priv->codec_lock); 444 445 return 0; 446 } 447 448 static const struct snd_soc_dapm_widget tasdevice_dapm_widgets[] = { 449 SND_SOC_DAPM_AIF_IN("ASI", "ASI Playback", 0, SND_SOC_NOPM, 0, 0), 450 SND_SOC_DAPM_AIF_OUT_E("ASI OUT", "ASI Capture", 0, SND_SOC_NOPM, 451 0, 0, tasdevice_dapm_event, 452 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 453 SND_SOC_DAPM_SPK("SPK", tasdevice_dapm_event), 454 SND_SOC_DAPM_OUTPUT("OUT"), 455 SND_SOC_DAPM_INPUT("DMIC") 456 }; 457 458 static const struct snd_soc_dapm_route tasdevice_audio_map[] = { 459 {"SPK", NULL, "ASI"}, 460 {"OUT", NULL, "SPK"}, 461 {"ASI OUT", NULL, "DMIC"} 462 }; 463 464 static int tasdevice_startup(struct snd_pcm_substream *substream, 465 struct snd_soc_dai *dai) 466 { 467 struct snd_soc_component *codec = dai->component; 468 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 469 int ret = 0; 470 471 if (tas_priv->fw_state != TASDEVICE_DSP_FW_ALL_OK) { 472 dev_err(tas_priv->dev, "DSP bin file not loaded\n"); 473 ret = -EINVAL; 474 } 475 476 return ret; 477 } 478 479 static int tasdevice_hw_params(struct snd_pcm_substream *substream, 480 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 481 { 482 struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(dai); 483 unsigned int slot_width; 484 unsigned int fsrate; 485 int bclk_rate; 486 int rc = 0; 487 488 fsrate = params_rate(params); 489 switch (fsrate) { 490 case 48000: 491 case 44100: 492 break; 493 default: 494 dev_err(tas_priv->dev, "%s: incorrect sample rate = %u\n", 495 __func__, fsrate); 496 rc = -EINVAL; 497 goto out; 498 } 499 500 slot_width = params_width(params); 501 switch (slot_width) { 502 case 16: 503 case 20: 504 case 24: 505 case 32: 506 break; 507 default: 508 dev_err(tas_priv->dev, "%s: incorrect slot width = %u\n", 509 __func__, slot_width); 510 rc = -EINVAL; 511 goto out; 512 } 513 514 bclk_rate = snd_soc_params_to_bclk(params); 515 if (bclk_rate < 0) { 516 dev_err(tas_priv->dev, "%s: incorrect bclk rate = %d\n", 517 __func__, bclk_rate); 518 rc = bclk_rate; 519 goto out; 520 } 521 522 out: 523 return rc; 524 } 525 526 static int tasdevice_set_dai_sysclk(struct snd_soc_dai *codec_dai, 527 int clk_id, unsigned int freq, int dir) 528 { 529 struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(codec_dai); 530 531 tas_priv->sysclk = freq; 532 533 return 0; 534 } 535 536 static const struct snd_soc_dai_ops tasdevice_dai_ops = { 537 .startup = tasdevice_startup, 538 .hw_params = tasdevice_hw_params, 539 .set_sysclk = tasdevice_set_dai_sysclk, 540 }; 541 542 static struct snd_soc_dai_driver tasdevice_dai_driver[] = { 543 { 544 .name = "tas2781_codec", 545 .id = 0, 546 .playback = { 547 .stream_name = "Playback", 548 .channels_min = 1, 549 .channels_max = 4, 550 .rates = TASDEVICE_RATES, 551 .formats = TASDEVICE_FORMATS, 552 }, 553 .capture = { 554 .stream_name = "Capture", 555 .channels_min = 1, 556 .channels_max = 4, 557 .rates = TASDEVICE_RATES, 558 .formats = TASDEVICE_FORMATS, 559 }, 560 .ops = &tasdevice_dai_ops, 561 .symmetric_rate = 1, 562 }, 563 }; 564 565 static int tasdevice_codec_probe(struct snd_soc_component *codec) 566 { 567 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 568 569 return tascodec_init(tas_priv, codec, THIS_MODULE, tasdevice_fw_ready); 570 } 571 572 static void tasdevice_deinit(void *context) 573 { 574 struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context; 575 576 tasdevice_config_info_remove(tas_priv); 577 tasdevice_dsp_remove(tas_priv); 578 tasdevice_calbin_remove(tas_priv); 579 tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING; 580 } 581 582 static void tasdevice_codec_remove( 583 struct snd_soc_component *codec) 584 { 585 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec); 586 587 tasdevice_deinit(tas_priv); 588 } 589 590 static const struct snd_soc_component_driver 591 soc_codec_driver_tasdevice = { 592 .probe = tasdevice_codec_probe, 593 .remove = tasdevice_codec_remove, 594 .controls = tas2781_snd_controls, 595 .num_controls = ARRAY_SIZE(tas2781_snd_controls), 596 .dapm_widgets = tasdevice_dapm_widgets, 597 .num_dapm_widgets = ARRAY_SIZE(tasdevice_dapm_widgets), 598 .dapm_routes = tasdevice_audio_map, 599 .num_dapm_routes = ARRAY_SIZE(tasdevice_audio_map), 600 .idle_bias_on = 1, 601 .endianness = 1, 602 }; 603 604 static void tasdevice_parse_dt(struct tasdevice_priv *tas_priv) 605 { 606 struct i2c_client *client = (struct i2c_client *)tas_priv->client; 607 unsigned int dev_addrs[TASDEVICE_MAX_CHANNELS]; 608 int rc, i, ndev = 0; 609 610 if (tas_priv->isacpi) { 611 ndev = device_property_read_u32_array(&client->dev, 612 "ti,audio-slots", NULL, 0); 613 if (ndev <= 0) { 614 ndev = 1; 615 dev_addrs[0] = client->addr; 616 } else { 617 ndev = (ndev < ARRAY_SIZE(dev_addrs)) 618 ? ndev : ARRAY_SIZE(dev_addrs); 619 ndev = device_property_read_u32_array(&client->dev, 620 "ti,audio-slots", dev_addrs, ndev); 621 } 622 623 tas_priv->irq_info.irq_gpio = 624 acpi_dev_gpio_irq_get(ACPI_COMPANION(&client->dev), 0); 625 } else { 626 struct device_node *np = tas_priv->dev->of_node; 627 #ifdef CONFIG_OF 628 const __be32 *reg, *reg_end; 629 int len, sw, aw; 630 631 aw = of_n_addr_cells(np); 632 sw = of_n_size_cells(np); 633 if (sw == 0) { 634 reg = (const __be32 *)of_get_property(np, 635 "reg", &len); 636 reg_end = reg + len/sizeof(*reg); 637 ndev = 0; 638 do { 639 dev_addrs[ndev] = of_read_number(reg, aw); 640 reg += aw; 641 ndev++; 642 } while (reg < reg_end); 643 } else { 644 ndev = 1; 645 dev_addrs[0] = client->addr; 646 } 647 #else 648 ndev = 1; 649 dev_addrs[0] = client->addr; 650 #endif 651 tas_priv->irq_info.irq_gpio = of_irq_get(np, 0); 652 } 653 tas_priv->ndev = ndev; 654 for (i = 0; i < ndev; i++) 655 tas_priv->tasdevice[i].dev_addr = dev_addrs[i]; 656 657 tas_priv->reset = devm_gpiod_get_optional(&client->dev, 658 "reset-gpios", GPIOD_OUT_HIGH); 659 if (IS_ERR(tas_priv->reset)) 660 dev_err(tas_priv->dev, "%s Can't get reset GPIO\n", 661 __func__); 662 663 strcpy(tas_priv->dev_name, tasdevice_id[tas_priv->chip_id].name); 664 665 if (gpio_is_valid(tas_priv->irq_info.irq_gpio)) { 666 rc = gpio_request(tas_priv->irq_info.irq_gpio, 667 "AUDEV-IRQ"); 668 if (!rc) { 669 gpio_direction_input( 670 tas_priv->irq_info.irq_gpio); 671 672 tas_priv->irq_info.irq = 673 gpio_to_irq(tas_priv->irq_info.irq_gpio); 674 } else 675 dev_err(tas_priv->dev, "%s: GPIO %d request error\n", 676 __func__, tas_priv->irq_info.irq_gpio); 677 } else 678 dev_err(tas_priv->dev, 679 "Looking up irq-gpio property failed %d\n", 680 tas_priv->irq_info.irq_gpio); 681 } 682 683 static int tasdevice_i2c_probe(struct i2c_client *i2c) 684 { 685 const struct i2c_device_id *id = i2c_match_id(tasdevice_id, i2c); 686 const struct acpi_device_id *acpi_id; 687 struct tasdevice_priv *tas_priv; 688 int ret; 689 690 tas_priv = tasdevice_kzalloc(i2c); 691 if (!tas_priv) 692 return -ENOMEM; 693 694 dev_set_drvdata(&i2c->dev, tas_priv); 695 696 if (ACPI_HANDLE(&i2c->dev)) { 697 acpi_id = acpi_match_device(i2c->dev.driver->acpi_match_table, 698 &i2c->dev); 699 if (!acpi_id) { 700 dev_err(&i2c->dev, "No driver data\n"); 701 ret = -EINVAL; 702 goto err; 703 } 704 tas_priv->chip_id = acpi_id->driver_data; 705 tas_priv->isacpi = true; 706 } else { 707 tas_priv->chip_id = id ? id->driver_data : 0; 708 tas_priv->isacpi = false; 709 } 710 711 tasdevice_parse_dt(tas_priv); 712 713 ret = tasdevice_init(tas_priv); 714 if (ret) 715 goto err; 716 717 ret = devm_snd_soc_register_component(tas_priv->dev, 718 &soc_codec_driver_tasdevice, 719 tasdevice_dai_driver, ARRAY_SIZE(tasdevice_dai_driver)); 720 if (ret) { 721 dev_err(tas_priv->dev, "%s: codec register error:0x%08x\n", 722 __func__, ret); 723 goto err; 724 } 725 err: 726 if (ret < 0) 727 tasdevice_remove(tas_priv); 728 return ret; 729 } 730 731 static void tasdevice_i2c_remove(struct i2c_client *client) 732 { 733 struct tasdevice_priv *tas_priv = i2c_get_clientdata(client); 734 735 tasdevice_remove(tas_priv); 736 } 737 738 #ifdef CONFIG_ACPI 739 static const struct acpi_device_id tasdevice_acpi_match[] = { 740 { "TAS2781", TAS2781 }, 741 {}, 742 }; 743 744 MODULE_DEVICE_TABLE(acpi, tasdevice_acpi_match); 745 #endif 746 747 static struct i2c_driver tasdevice_i2c_driver = { 748 .driver = { 749 .name = "tas2781-codec", 750 .of_match_table = of_match_ptr(tasdevice_of_match), 751 #ifdef CONFIG_ACPI 752 .acpi_match_table = ACPI_PTR(tasdevice_acpi_match), 753 #endif 754 }, 755 .probe = tasdevice_i2c_probe, 756 .remove = tasdevice_i2c_remove, 757 .id_table = tasdevice_id, 758 }; 759 760 module_i2c_driver(tasdevice_i2c_driver); 761 762 MODULE_AUTHOR("Shenghao Ding <shenghao-ding@ti.com>"); 763 MODULE_AUTHOR("Kevin Lu <kevin-lu@ti.com>"); 764 MODULE_DESCRIPTION("ASoC TAS2781 Driver"); 765 MODULE_LICENSE("GPL"); 766 MODULE_IMPORT_NS(SND_SOC_TAS2781_FMWLIB); 767