1 // SPDX-License-Identifier: GPL-2.0+ 2 // Copyright 2017-2021 NXP 3 4 #include <linux/module.h> 5 #include <linux/init.h> 6 #include <linux/slab.h> 7 #include <linux/gpio/consumer.h> 8 #include <linux/of.h> 9 #include <linux/i2c.h> 10 #include <linux/clk.h> 11 #include <sound/soc.h> 12 #include <sound/pcm_params.h> 13 #include <sound/pcm.h> 14 #include <sound/soc-dapm.h> 15 #include <sound/simple_card_utils.h> 16 17 #include "fsl_sai.h" 18 19 #define IMX_CARD_MCLK_22P5792MHZ 22579200 20 #define IMX_CARD_MCLK_24P576MHZ 24576000 21 22 enum codec_type { 23 CODEC_DUMMY = 0, 24 CODEC_AK5558 = 1, 25 CODEC_AK4458, 26 CODEC_AK4497, 27 CODEC_AK5552, 28 }; 29 30 /* 31 * Mapping LRCK fs and frame width, table 3 & 4 in datasheet 32 * @rmin: min rate 33 * @rmax: max rate 34 * @wmin: min frame ratio 35 * @wmax: max frame ratio 36 */ 37 struct imx_akcodec_fs_mul { 38 unsigned int rmin; 39 unsigned int rmax; 40 unsigned int wmin; 41 unsigned int wmax; 42 }; 43 44 /* 45 * Mapping TDM mode and frame width 46 */ 47 struct imx_akcodec_tdm_fs_mul { 48 unsigned int min; 49 unsigned int max; 50 unsigned int mul; 51 }; 52 53 /* 54 * struct imx_card_plat_data - specific info for codecs 55 * 56 * @fs_mul: ratio of mclk/fs for normal mode 57 * @tdm_fs_mul: ratio of mclk/fs for tdm mode 58 * @support_rates: supported sample rate 59 * @support_tdm_rates: supported sample rate for tdm mode 60 * @support_channels: supported channels 61 * @support_tdm_channels: supported channels for tdm mode 62 * @num_fs_mul: ARRAY_SIZE of fs_mul 63 * @num_tdm_fs_mul: ARRAY_SIZE of tdm_fs_mul 64 * @num_rates: ARRAY_SIZE of support_rates 65 * @num_tdm_rates: ARRAY_SIZE of support_tdm_rates 66 * @num_channels: ARRAY_SIZE of support_channels 67 * @num_tdm_channels: ARRAY_SIZE of support_tdm_channels 68 * @type: codec type 69 */ 70 struct imx_card_plat_data { 71 struct imx_akcodec_fs_mul *fs_mul; 72 struct imx_akcodec_tdm_fs_mul *tdm_fs_mul; 73 const u32 *support_rates; 74 const u32 *support_tdm_rates; 75 const u32 *support_channels; 76 const u32 *support_tdm_channels; 77 unsigned int num_fs_mul; 78 unsigned int num_tdm_fs_mul; 79 unsigned int num_rates; 80 unsigned int num_tdm_rates; 81 unsigned int num_channels; 82 unsigned int num_tdm_channels; 83 unsigned int num_codecs; 84 enum codec_type type; 85 }; 86 87 /* 88 * struct dai_link_data - specific info for dai link 89 * 90 * @slots: slot number 91 * @slot_width: slot width value 92 * @cpu_sysclk_id: sysclk id for cpu dai 93 * @one2one_ratio: true if mclk equal to bclk 94 */ 95 struct dai_link_data { 96 unsigned int slots; 97 unsigned int slot_width; 98 unsigned int cpu_sysclk_id; 99 bool one2one_ratio; 100 }; 101 102 /* 103 * struct imx_card_data - platform device data 104 * 105 * @plat_data: pointer of imx_card_plat_data 106 * @dapm_routes: pointer of dapm_routes 107 * @link_data: private data for dai link 108 * @card: card instance 109 * @num_dapm_routes: number of dapm_routes 110 * @asrc_rate: asrc rates 111 * @asrc_format: asrc format 112 */ 113 struct imx_card_data { 114 struct imx_card_plat_data *plat_data; 115 struct snd_soc_dapm_route *dapm_routes; 116 struct dai_link_data *link_data; 117 struct snd_soc_card card; 118 int num_dapm_routes; 119 u32 asrc_rate; 120 snd_pcm_format_t asrc_format; 121 }; 122 123 static struct imx_akcodec_fs_mul ak4458_fs_mul[] = { 124 /* Normal, < 32kHz */ 125 { .rmin = 8000, .rmax = 24000, .wmin = 256, .wmax = 1024, }, 126 /* Normal, 32kHz */ 127 { .rmin = 32000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, 128 /* Normal */ 129 { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 768, }, 130 /* Double */ 131 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 512, }, 132 /* Quad */ 133 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 256, }, 134 /* Oct */ 135 { .rmin = 352800, .rmax = 384000, .wmin = 32, .wmax = 128, }, 136 /* Hex */ 137 { .rmin = 705600, .rmax = 768000, .wmin = 16, .wmax = 64, }, 138 }; 139 140 static struct imx_akcodec_tdm_fs_mul ak4458_tdm_fs_mul[] = { 141 /* 142 * Table 13 - Audio Interface Format 143 * For TDM mode, MCLK should is set to 144 * obtained from 2 * slots * slot_width 145 */ 146 { .min = 128, .max = 128, .mul = 256 }, /* TDM128 */ 147 { .min = 256, .max = 256, .mul = 512 }, /* TDM256 */ 148 { .min = 512, .max = 512, .mul = 1024 }, /* TDM512 */ 149 }; 150 151 static struct imx_akcodec_fs_mul ak4497_fs_mul[] = { 152 /** 153 * Table 7 - mapping multiplier and speed mode 154 * Tables 8 & 9 - mapping speed mode and LRCK fs 155 */ 156 { .rmin = 8000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, /* Normal, <= 32kHz */ 157 { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 512, }, /* Normal */ 158 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, /* Double */ 159 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, /* Quad */ 160 { .rmin = 352800, .rmax = 384000, .wmin = 128, .wmax = 128, }, /* Oct */ 161 { .rmin = 705600, .rmax = 768000, .wmin = 64, .wmax = 64, }, /* Hex */ 162 }; 163 164 /* 165 * Auto MCLK selection based on LRCK for Normal Mode 166 * (Table 4 from datasheet) 167 */ 168 static struct imx_akcodec_fs_mul ak5558_fs_mul[] = { 169 { .rmin = 8000, .rmax = 32000, .wmin = 512, .wmax = 1024, }, 170 { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, }, 171 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, 172 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, 173 { .rmin = 352800, .rmax = 384000, .wmin = 64, .wmax = 64, }, 174 { .rmin = 705600, .rmax = 768000, .wmin = 32, .wmax = 32, }, 175 }; 176 177 /* 178 * MCLK and BCLK selection based on TDM mode 179 * because of SAI we also add the restriction: MCLK >= 2 * BCLK 180 * (Table 9 from datasheet) 181 */ 182 static struct imx_akcodec_tdm_fs_mul ak5558_tdm_fs_mul[] = { 183 { .min = 128, .max = 128, .mul = 256 }, 184 { .min = 256, .max = 256, .mul = 512 }, 185 { .min = 512, .max = 512, .mul = 1024 }, 186 }; 187 188 static const u32 akcodec_rates[] = { 189 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, 190 96000, 176400, 192000, 352800, 384000, 705600, 768000, 191 }; 192 193 static const u32 akcodec_tdm_rates[] = { 194 8000, 16000, 32000, 48000, 96000, 195 }; 196 197 static const u32 ak4458_channels[] = { 198 1, 2, 4, 6, 8, 10, 12, 14, 16, 199 }; 200 201 static const u32 ak4458_tdm_channels[] = { 202 1, 2, 3, 4, 5, 6, 7, 8, 16, 203 }; 204 205 static const u32 ak5558_channels[] = { 206 1, 2, 4, 6, 8, 207 }; 208 209 static const u32 ak5558_tdm_channels[] = { 210 1, 2, 3, 4, 5, 6, 7, 8, 211 }; 212 213 static bool format_is_dsd(struct snd_pcm_hw_params *params) 214 { 215 snd_pcm_format_t format = params_format(params); 216 217 switch (format) { 218 case SNDRV_PCM_FORMAT_DSD_U8: 219 case SNDRV_PCM_FORMAT_DSD_U16_LE: 220 case SNDRV_PCM_FORMAT_DSD_U16_BE: 221 case SNDRV_PCM_FORMAT_DSD_U32_LE: 222 case SNDRV_PCM_FORMAT_DSD_U32_BE: 223 return true; 224 default: 225 return false; 226 } 227 } 228 229 static bool format_is_tdm(struct dai_link_data *link_data) 230 { 231 if (link_data->slots > 2) 232 return true; 233 else 234 return false; 235 } 236 237 static bool codec_is_akcodec(unsigned int type) 238 { 239 switch (type) { 240 case CODEC_AK4458: 241 case CODEC_AK4497: 242 case CODEC_AK5558: 243 case CODEC_AK5552: 244 return true; 245 default: 246 break; 247 } 248 return false; 249 } 250 251 static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream, 252 struct snd_pcm_hw_params *params, 253 int slots, int slot_width) 254 { 255 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 256 struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card); 257 const struct imx_card_plat_data *plat_data = data->plat_data; 258 struct dai_link_data *link_data = &data->link_data[rtd->num]; 259 unsigned int width = slots * slot_width; 260 unsigned int rate = params_rate(params); 261 int i; 262 263 if (format_is_tdm(link_data)) { 264 for (i = 0; i < plat_data->num_tdm_fs_mul; i++) { 265 /* min = max = slots * slots_width */ 266 if (width != plat_data->tdm_fs_mul[i].min) 267 continue; 268 return rate * plat_data->tdm_fs_mul[i].mul; 269 } 270 } else { 271 for (i = 0; i < plat_data->num_fs_mul; i++) { 272 if (rate >= plat_data->fs_mul[i].rmin && 273 rate <= plat_data->fs_mul[i].rmax) { 274 width = max(width, plat_data->fs_mul[i].wmin); 275 width = min(width, plat_data->fs_mul[i].wmax); 276 277 /* Adjust SAI bclk:mclk ratio */ 278 width *= link_data->one2one_ratio ? 1 : 2; 279 280 return rate * width; 281 } 282 } 283 } 284 285 /* Let DAI manage clk frequency by default */ 286 return 0; 287 } 288 289 static int imx_aif_hw_params(struct snd_pcm_substream *substream, 290 struct snd_pcm_hw_params *params) 291 { 292 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 293 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 294 struct snd_soc_card *card = rtd->card; 295 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 296 struct dai_link_data *link_data = &data->link_data[rtd->num]; 297 struct imx_card_plat_data *plat_data = data->plat_data; 298 struct device *dev = card->dev; 299 struct snd_soc_dai *codec_dai; 300 unsigned long mclk_freq; 301 unsigned int fmt = rtd->dai_link->dai_fmt; 302 unsigned int slots, slot_width; 303 int ret, i; 304 305 slots = link_data->slots; 306 slot_width = link_data->slot_width; 307 308 if (!format_is_tdm(link_data)) { 309 if (format_is_dsd(params)) { 310 slots = 1; 311 slot_width = params_width(params); 312 fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | 313 SND_SOC_DAIFMT_PDM; 314 } else { 315 slots = 2; 316 slot_width = params_physical_width(params); 317 fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | 318 SND_SOC_DAIFMT_I2S; 319 } 320 } 321 322 ret = snd_soc_dai_set_fmt(cpu_dai, snd_soc_daifmt_clock_provider_flipped(fmt)); 323 if (ret && ret != -ENOTSUPP) { 324 dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); 325 return ret; 326 } 327 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 328 BIT(slots) - 1, 329 BIT(slots) - 1, 330 slots, slot_width); 331 if (ret && ret != -ENOTSUPP) { 332 dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); 333 return ret; 334 } 335 336 for_each_rtd_codec_dais(rtd, i, codec_dai) { 337 ret = snd_soc_dai_set_fmt(codec_dai, fmt); 338 if (ret && ret != -ENOTSUPP) { 339 dev_err(dev, "failed to set codec dai[%d] fmt: %d\n", i, ret); 340 return ret; 341 } 342 343 ret = snd_soc_dai_set_tdm_slot(codec_dai, 344 BIT(slots) - 1, 345 BIT(slots) - 1, 346 slots, slot_width); 347 if (ret && ret != -ENOTSUPP) { 348 dev_err(dev, "failed to set codec dai[%d] tdm slot: %d\n", i, ret); 349 return ret; 350 } 351 } 352 353 /* Set MCLK freq */ 354 if (codec_is_akcodec(plat_data->type)) 355 mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width); 356 else 357 mclk_freq = params_rate(params) * slots * slot_width; 358 359 if (format_is_dsd(params)) { 360 /* Use the maximum freq from DSD512 (512*44100 = 22579200) */ 361 if (!(params_rate(params) % 11025)) 362 mclk_freq = IMX_CARD_MCLK_22P5792MHZ; 363 else 364 mclk_freq = IMX_CARD_MCLK_24P576MHZ; 365 } 366 367 ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq, 368 SND_SOC_CLOCK_OUT); 369 if (ret && ret != -ENOTSUPP) { 370 dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret); 371 return ret; 372 } 373 374 return 0; 375 } 376 377 static int ak5558_hw_rule_rate(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *r) 378 { 379 struct dai_link_data *link_data = r->private; 380 struct snd_interval t = { .min = 8000, .max = 8000, }; 381 unsigned long mclk_freq; 382 unsigned int fs; 383 int i; 384 385 fs = hw_param_interval(p, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min; 386 fs *= link_data->slots; 387 388 /* Identify maximum supported rate */ 389 for (i = 0; i < ARRAY_SIZE(akcodec_rates); i++) { 390 mclk_freq = fs * akcodec_rates[i]; 391 /* Adjust SAI bclk:mclk ratio */ 392 mclk_freq *= link_data->one2one_ratio ? 1 : 2; 393 394 /* Skip rates for which MCLK is beyond supported value */ 395 if (mclk_freq > 36864000) 396 continue; 397 398 if (t.max < akcodec_rates[i]) 399 t.max = akcodec_rates[i]; 400 } 401 402 return snd_interval_refine(hw_param_interval(p, r->var), &t); 403 } 404 405 static int imx_aif_startup(struct snd_pcm_substream *substream) 406 { 407 struct snd_pcm_runtime *runtime = substream->runtime; 408 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 409 struct snd_soc_card *card = rtd->card; 410 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 411 struct dai_link_data *link_data = &data->link_data[rtd->num]; 412 static struct snd_pcm_hw_constraint_list constraint_rates; 413 static struct snd_pcm_hw_constraint_list constraint_channels; 414 int ret = 0; 415 416 if (format_is_tdm(link_data)) { 417 constraint_channels.list = data->plat_data->support_tdm_channels; 418 constraint_channels.count = data->plat_data->num_tdm_channels; 419 constraint_rates.list = data->plat_data->support_tdm_rates; 420 constraint_rates.count = data->plat_data->num_tdm_rates; 421 } else { 422 constraint_channels.list = data->plat_data->support_channels; 423 constraint_channels.count = data->plat_data->num_channels; 424 constraint_rates.list = data->plat_data->support_rates; 425 constraint_rates.count = data->plat_data->num_rates; 426 } 427 428 if (constraint_channels.count) { 429 ret = snd_pcm_hw_constraint_list(runtime, 0, 430 SNDRV_PCM_HW_PARAM_CHANNELS, 431 &constraint_channels); 432 if (ret) 433 return ret; 434 } 435 436 if (constraint_rates.count) { 437 ret = snd_pcm_hw_constraint_list(runtime, 0, 438 SNDRV_PCM_HW_PARAM_RATE, 439 &constraint_rates); 440 if (ret) 441 return ret; 442 } 443 444 if (data->plat_data->type == CODEC_AK5558) 445 ret = snd_pcm_hw_rule_add(substream->runtime, 0, 446 SNDRV_PCM_HW_PARAM_RATE, 447 ak5558_hw_rule_rate, link_data, 448 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); 449 450 return ret; 451 } 452 453 static const struct snd_soc_ops imx_aif_ops = { 454 .hw_params = imx_aif_hw_params, 455 .startup = imx_aif_startup, 456 }; 457 458 static const struct snd_soc_ops imx_aif_ops_be = { 459 .hw_params = imx_aif_hw_params, 460 }; 461 462 static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 463 struct snd_pcm_hw_params *params) 464 { 465 struct snd_soc_card *card = rtd->card; 466 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 467 struct snd_interval *rate; 468 struct snd_mask *mask; 469 470 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 471 rate->max = data->asrc_rate; 472 rate->min = data->asrc_rate; 473 474 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 475 snd_mask_none(mask); 476 snd_mask_set(mask, (__force unsigned int)data->asrc_format); 477 478 return 0; 479 } 480 481 static int imx_card_parse_of(struct imx_card_data *data) 482 { 483 struct imx_card_plat_data *plat_data = data->plat_data; 484 struct snd_soc_card *card = &data->card; 485 struct snd_soc_dai_link_component *dlc; 486 struct device_node *platform = NULL; 487 struct device_node *codec = NULL; 488 struct device_node *cpu = NULL; 489 struct device_node *np; 490 struct device *dev = card->dev; 491 struct snd_soc_dai_link *link; 492 struct dai_link_data *link_data; 493 struct of_phandle_args args; 494 int ret, num_links; 495 u32 asrc_fmt = 0; 496 u32 width; 497 498 ret = snd_soc_of_parse_card_name(card, "model"); 499 if (ret) { 500 dev_err(dev, "Error parsing card name: %d\n", ret); 501 return ret; 502 } 503 504 /* DAPM routes */ 505 if (of_property_read_bool(dev->of_node, "audio-routing")) { 506 ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); 507 if (ret) 508 return ret; 509 } 510 511 /* Populate links */ 512 num_links = of_get_child_count(dev->of_node); 513 514 /* Allocate the DAI link array */ 515 card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 516 if (!card->dai_link) 517 return -ENOMEM; 518 519 data->link_data = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 520 if (!data->link_data) 521 return -ENOMEM; 522 523 card->num_links = num_links; 524 link = card->dai_link; 525 link_data = data->link_data; 526 527 for_each_child_of_node(dev->of_node, np) { 528 dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); 529 if (!dlc) { 530 ret = -ENOMEM; 531 goto err_put_np; 532 } 533 534 link->cpus = &dlc[0]; 535 link->platforms = &dlc[1]; 536 537 link->num_cpus = 1; 538 link->num_platforms = 1; 539 540 ret = of_property_read_string(np, "link-name", &link->name); 541 if (ret) { 542 dev_err(card->dev, "error getting codec dai_link name\n"); 543 goto err_put_np; 544 } 545 546 cpu = of_get_child_by_name(np, "cpu"); 547 if (!cpu) { 548 dev_err(dev, "%s: Can't find cpu DT node\n", link->name); 549 ret = -EINVAL; 550 goto err; 551 } 552 553 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0); 554 if (ret) { 555 dev_err_probe(card->dev, ret, 556 "%s: error getting cpu dai info\n", link->name); 557 goto err; 558 } 559 560 if (of_node_name_eq(args.np, "sai")) { 561 /* sai sysclk id */ 562 link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1; 563 564 /* sai may support mclk/bclk = 1 */ 565 if (of_property_read_bool(np, "fsl,mclk-equal-bclk")) { 566 link_data->one2one_ratio = true; 567 } else { 568 int i; 569 570 /* 571 * i.MX8MQ don't support one2one ratio, then 572 * with ak4497 only 16bit case is supported. 573 */ 574 for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) { 575 if (ak4497_fs_mul[i].rmin == 705600 && 576 ak4497_fs_mul[i].rmax == 768000) { 577 ak4497_fs_mul[i].wmin = 32; 578 ak4497_fs_mul[i].wmax = 32; 579 } 580 } 581 } 582 } 583 584 link->platforms->of_node = link->cpus->of_node; 585 link->id = args.args[0]; 586 587 codec = of_get_child_by_name(np, "codec"); 588 if (codec) { 589 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); 590 if (ret < 0) { 591 dev_err_probe(dev, ret, "%s: codec dai not found\n", 592 link->name); 593 goto err; 594 } 595 596 plat_data->num_codecs = link->num_codecs; 597 598 /* Check the akcodec type */ 599 if (!strcmp(link->codecs->dai_name, "ak4458-aif")) 600 plat_data->type = CODEC_AK4458; 601 else if (!strcmp(link->codecs->dai_name, "ak4497-aif")) 602 plat_data->type = CODEC_AK4497; 603 else if (!strcmp(link->codecs->dai_name, "ak5558-aif")) 604 plat_data->type = CODEC_AK5558; 605 else if (!strcmp(link->codecs->dai_name, "ak5552-aif")) 606 plat_data->type = CODEC_AK5552; 607 608 } else { 609 link->codecs = &snd_soc_dummy_dlc; 610 link->num_codecs = 1; 611 } 612 613 if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) { 614 /* DPCM frontend */ 615 link->dynamic = 1; 616 link->dpcm_merged_chan = 1; 617 618 ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate); 619 if (ret) { 620 dev_err(dev, "failed to get output rate\n"); 621 ret = -EINVAL; 622 goto err; 623 } 624 625 ret = of_property_read_u32(args.np, "fsl,asrc-format", &asrc_fmt); 626 data->asrc_format = (__force snd_pcm_format_t)asrc_fmt; 627 if (ret) { 628 /* Fallback to old binding; translate to asrc_format */ 629 ret = of_property_read_u32(args.np, "fsl,asrc-width", &width); 630 if (ret) { 631 dev_err(dev, 632 "failed to decide output format\n"); 633 goto err; 634 } 635 636 if (width == 24) 637 data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; 638 else 639 data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; 640 } 641 } else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) { 642 /* DPCM backend */ 643 link->no_pcm = 1; 644 link->platforms->of_node = NULL; 645 link->platforms->name = "snd-soc-dummy"; 646 647 link->be_hw_params_fixup = be_hw_params_fixup; 648 link->ops = &imx_aif_ops_be; 649 } else { 650 link->ops = &imx_aif_ops; 651 } 652 653 /* Get dai fmt */ 654 ret = simple_util_parse_daifmt(dev, np, codec, 655 NULL, &link->dai_fmt); 656 if (ret) 657 link->dai_fmt = SND_SOC_DAIFMT_NB_NF | 658 SND_SOC_DAIFMT_CBC_CFC | 659 SND_SOC_DAIFMT_I2S; 660 661 /* Get tdm slot */ 662 snd_soc_of_parse_tdm_slot(np, NULL, NULL, 663 &link_data->slots, 664 &link_data->slot_width); 665 /* default value */ 666 if (!link_data->slots) 667 link_data->slots = 2; 668 669 if (!link_data->slot_width) 670 link_data->slot_width = 32; 671 672 link->ignore_pmdown_time = 1; 673 link->stream_name = link->name; 674 link++; 675 link_data++; 676 677 of_node_put(cpu); 678 of_node_put(codec); 679 of_node_put(platform); 680 681 cpu = NULL; 682 codec = NULL; 683 platform = NULL; 684 } 685 686 return 0; 687 err: 688 of_node_put(cpu); 689 of_node_put(codec); 690 of_node_put(platform); 691 err_put_np: 692 of_node_put(np); 693 return ret; 694 } 695 696 static int imx_card_probe(struct platform_device *pdev) 697 { 698 struct snd_soc_dai_link *link_be = NULL, *link; 699 struct imx_card_plat_data *plat_data; 700 struct imx_card_data *data; 701 int ret, i; 702 703 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 704 if (!data) 705 return -ENOMEM; 706 707 plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL); 708 if (!plat_data) 709 return -ENOMEM; 710 711 data->plat_data = plat_data; 712 data->card.dev = &pdev->dev; 713 data->card.owner = THIS_MODULE; 714 715 dev_set_drvdata(&pdev->dev, &data->card); 716 snd_soc_card_set_drvdata(&data->card, data); 717 ret = imx_card_parse_of(data); 718 if (ret) 719 return ret; 720 721 data->num_dapm_routes = plat_data->num_codecs + 1; 722 data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes, 723 sizeof(struct snd_soc_dapm_route), 724 GFP_KERNEL); 725 if (!data->dapm_routes) 726 return -ENOMEM; 727 728 /* configure the dapm routes */ 729 switch (plat_data->type) { 730 case CODEC_AK4458: 731 case CODEC_AK4497: 732 if (plat_data->num_codecs == 1) { 733 data->dapm_routes[0].sink = "Playback"; 734 data->dapm_routes[0].source = "CPU-Playback"; 735 i = 1; 736 } else { 737 for (i = 0; i < plat_data->num_codecs; i++) { 738 data->dapm_routes[i].sink = 739 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 740 i + 1, "Playback"); 741 data->dapm_routes[i].source = "CPU-Playback"; 742 } 743 } 744 data->dapm_routes[i].sink = "CPU-Playback"; 745 data->dapm_routes[i].source = "ASRC-Playback"; 746 break; 747 case CODEC_AK5558: 748 case CODEC_AK5552: 749 if (plat_data->num_codecs == 1) { 750 data->dapm_routes[0].sink = "CPU-Capture"; 751 data->dapm_routes[0].source = "Capture"; 752 i = 1; 753 } else { 754 for (i = 0; i < plat_data->num_codecs; i++) { 755 data->dapm_routes[i].source = 756 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 757 i + 1, "Capture"); 758 data->dapm_routes[i].sink = "CPU-Capture"; 759 } 760 } 761 data->dapm_routes[i].sink = "ASRC-Capture"; 762 data->dapm_routes[i].source = "CPU-Capture"; 763 break; 764 default: 765 break; 766 } 767 768 /* default platform data for akcodecs */ 769 if (codec_is_akcodec(plat_data->type)) { 770 plat_data->support_rates = akcodec_rates; 771 plat_data->num_rates = ARRAY_SIZE(akcodec_rates); 772 plat_data->support_tdm_rates = akcodec_tdm_rates; 773 plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates); 774 775 switch (plat_data->type) { 776 case CODEC_AK4458: 777 plat_data->fs_mul = ak4458_fs_mul; 778 plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul); 779 plat_data->tdm_fs_mul = ak4458_tdm_fs_mul; 780 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul); 781 plat_data->support_channels = ak4458_channels; 782 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 783 plat_data->support_tdm_channels = ak4458_tdm_channels; 784 plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels); 785 break; 786 case CODEC_AK4497: 787 plat_data->fs_mul = ak4497_fs_mul; 788 plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul); 789 plat_data->support_channels = ak4458_channels; 790 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 791 break; 792 case CODEC_AK5558: 793 case CODEC_AK5552: 794 plat_data->fs_mul = ak5558_fs_mul; 795 plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul); 796 plat_data->tdm_fs_mul = ak5558_tdm_fs_mul; 797 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul); 798 plat_data->support_channels = ak5558_channels; 799 plat_data->num_channels = ARRAY_SIZE(ak5558_channels); 800 plat_data->support_tdm_channels = ak5558_tdm_channels; 801 plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels); 802 break; 803 default: 804 break; 805 } 806 } 807 808 /* with asrc as front end */ 809 if (data->card.num_links == 3) { 810 data->card.dapm_routes = data->dapm_routes; 811 data->card.num_dapm_routes = data->num_dapm_routes; 812 for_each_card_prelinks(&data->card, i, link) { 813 if (link->no_pcm == 1) 814 link_be = link; 815 } 816 for_each_card_prelinks(&data->card, i, link) { 817 if (link->dynamic == 1 && link_be) { 818 link->dpcm_playback = link_be->dpcm_playback; 819 link->dpcm_capture = link_be->dpcm_capture; 820 } 821 } 822 } 823 824 ret = devm_snd_soc_register_card(&pdev->dev, &data->card); 825 if (ret) 826 return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); 827 828 return 0; 829 } 830 831 static const struct of_device_id imx_card_dt_ids[] = { 832 { .compatible = "fsl,imx-audio-card", }, 833 { }, 834 }; 835 MODULE_DEVICE_TABLE(of, imx_card_dt_ids); 836 837 static struct platform_driver imx_card_driver = { 838 .driver = { 839 .name = "imx-card", 840 .pm = &snd_soc_pm_ops, 841 .of_match_table = imx_card_dt_ids, 842 }, 843 .probe = imx_card_probe, 844 }; 845 module_platform_driver(imx_card_driver); 846 847 MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver"); 848 MODULE_LICENSE("GPL v2"); 849 MODULE_ALIAS("platform:imx-card"); 850