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 CODEC_CS42888, 29 }; 30 31 /* 32 * Mapping LRCK fs and frame width, table 3 & 4 in datasheet 33 * @rmin: min rate 34 * @rmax: max rate 35 * @wmin: min frame ratio 36 * @wmax: max frame ratio 37 */ 38 struct imx_akcodec_fs_mul { 39 unsigned int rmin; 40 unsigned int rmax; 41 unsigned int wmin; 42 unsigned int wmax; 43 }; 44 45 /* 46 * Mapping TDM mode and frame width 47 */ 48 struct imx_akcodec_tdm_fs_mul { 49 unsigned int min; 50 unsigned int max; 51 unsigned int mul; 52 }; 53 54 /* 55 * struct imx_card_plat_data - specific info for codecs 56 * 57 * @fs_mul: ratio of mclk/fs for normal mode 58 * @tdm_fs_mul: ratio of mclk/fs for tdm mode 59 * @support_rates: supported sample rate 60 * @support_tdm_rates: supported sample rate for tdm mode 61 * @support_channels: supported channels 62 * @support_tdm_channels: supported channels for tdm mode 63 * @num_fs_mul: ARRAY_SIZE of fs_mul 64 * @num_tdm_fs_mul: ARRAY_SIZE of tdm_fs_mul 65 * @num_rates: ARRAY_SIZE of support_rates 66 * @num_tdm_rates: ARRAY_SIZE of support_tdm_rates 67 * @num_channels: ARRAY_SIZE of support_channels 68 * @num_tdm_channels: ARRAY_SIZE of support_tdm_channels 69 * @type: codec type 70 */ 71 struct imx_card_plat_data { 72 struct imx_akcodec_fs_mul *fs_mul; 73 struct imx_akcodec_tdm_fs_mul *tdm_fs_mul; 74 const u32 *support_rates; 75 const u32 *support_tdm_rates; 76 const u32 *support_channels; 77 const u32 *support_tdm_channels; 78 unsigned int num_fs_mul; 79 unsigned int num_tdm_fs_mul; 80 unsigned int num_rates; 81 unsigned int num_tdm_rates; 82 unsigned int num_channels; 83 unsigned int num_tdm_channels; 84 unsigned int num_codecs; 85 enum codec_type type; 86 }; 87 88 /* 89 * struct dai_link_data - specific info for dai link 90 * 91 * @slots: slot number 92 * @slot_width: slot width value 93 * @cpu_sysclk_id: sysclk id for cpu dai 94 * @one2one_ratio: true if mclk equal to bclk 95 */ 96 struct dai_link_data { 97 unsigned int slots; 98 unsigned int slot_width; 99 unsigned int cpu_sysclk_id; 100 bool one2one_ratio; 101 }; 102 103 /* 104 * struct imx_card_data - platform device data 105 * 106 * @plat_data: pointer of imx_card_plat_data 107 * @dapm_routes: pointer of dapm_routes 108 * @link_data: private data for dai link 109 * @card: card instance 110 * @num_dapm_routes: number of dapm_routes 111 * @asrc_rate: asrc rates 112 * @asrc_format: asrc format 113 */ 114 struct imx_card_data { 115 struct imx_card_plat_data *plat_data; 116 struct snd_soc_dapm_route *dapm_routes; 117 struct dai_link_data *link_data; 118 struct snd_soc_card card; 119 int num_dapm_routes; 120 u32 asrc_rate; 121 snd_pcm_format_t asrc_format; 122 }; 123 124 static struct imx_akcodec_fs_mul ak4458_fs_mul[] = { 125 /* Normal, < 32kHz */ 126 { .rmin = 8000, .rmax = 24000, .wmin = 256, .wmax = 1024, }, 127 /* Normal, 32kHz */ 128 { .rmin = 32000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, 129 /* Normal */ 130 { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 768, }, 131 /* Double */ 132 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 512, }, 133 /* Quad */ 134 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 256, }, 135 /* Oct */ 136 { .rmin = 352800, .rmax = 384000, .wmin = 32, .wmax = 128, }, 137 /* Hex */ 138 { .rmin = 705600, .rmax = 768000, .wmin = 16, .wmax = 64, }, 139 }; 140 141 static struct imx_akcodec_tdm_fs_mul ak4458_tdm_fs_mul[] = { 142 /* 143 * Table 13 - Audio Interface Format 144 * For TDM mode, MCLK should is set to 145 * obtained from 2 * slots * slot_width 146 */ 147 { .min = 128, .max = 128, .mul = 256 }, /* TDM128 */ 148 { .min = 256, .max = 256, .mul = 512 }, /* TDM256 */ 149 { .min = 512, .max = 512, .mul = 1024 }, /* TDM512 */ 150 }; 151 152 static struct imx_akcodec_fs_mul ak4497_fs_mul[] = { 153 /** 154 * Table 7 - mapping multiplier and speed mode 155 * Tables 8 & 9 - mapping speed mode and LRCK fs 156 */ 157 { .rmin = 8000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, /* Normal, <= 32kHz */ 158 { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 512, }, /* Normal */ 159 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, /* Double */ 160 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, /* Quad */ 161 { .rmin = 352800, .rmax = 384000, .wmin = 128, .wmax = 128, }, /* Oct */ 162 { .rmin = 705600, .rmax = 768000, .wmin = 64, .wmax = 64, }, /* Hex */ 163 }; 164 165 /* 166 * Auto MCLK selection based on LRCK for Normal Mode 167 * (Table 4 from datasheet) 168 */ 169 static struct imx_akcodec_fs_mul ak5558_fs_mul[] = { 170 { .rmin = 8000, .rmax = 32000, .wmin = 512, .wmax = 1024, }, 171 { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, }, 172 { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, 173 { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, 174 { .rmin = 352800, .rmax = 384000, .wmin = 64, .wmax = 64, }, 175 { .rmin = 705600, .rmax = 768000, .wmin = 32, .wmax = 32, }, 176 }; 177 178 /* 179 * MCLK and BCLK selection based on TDM mode 180 * because of SAI we also add the restriction: MCLK >= 2 * BCLK 181 * (Table 9 from datasheet) 182 */ 183 static struct imx_akcodec_tdm_fs_mul ak5558_tdm_fs_mul[] = { 184 { .min = 128, .max = 128, .mul = 256 }, 185 { .min = 256, .max = 256, .mul = 512 }, 186 { .min = 512, .max = 512, .mul = 1024 }, 187 }; 188 189 static struct imx_akcodec_fs_mul cs42888_fs_mul[] = { 190 { .rmin = 8000, .rmax = 48000, .wmin = 256, .wmax = 1024, }, 191 { .rmin = 64000, .rmax = 96000, .wmin = 128, .wmax = 512, }, 192 { .rmin = 176400, .rmax = 192000, .wmin = 64, .wmax = 256, }, 193 }; 194 195 static struct imx_akcodec_tdm_fs_mul cs42888_tdm_fs_mul[] = { 196 { .min = 256, .max = 256, .mul = 256 }, 197 }; 198 199 static const u32 akcodec_rates[] = { 200 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, 201 96000, 176400, 192000, 352800, 384000, 705600, 768000, 202 }; 203 204 static const u32 akcodec_tdm_rates[] = { 205 8000, 16000, 32000, 48000, 96000, 206 }; 207 208 static const u32 ak4458_channels[] = { 209 1, 2, 4, 6, 8, 10, 12, 14, 16, 210 }; 211 212 static const u32 ak4458_tdm_channels[] = { 213 1, 2, 3, 4, 5, 6, 7, 8, 16, 214 }; 215 216 static const u32 ak5558_channels[] = { 217 1, 2, 4, 6, 8, 218 }; 219 220 static const u32 ak5558_tdm_channels[] = { 221 1, 2, 3, 4, 5, 6, 7, 8, 222 }; 223 224 static const u32 cs42888_channels[] = { 225 1, 2, 4, 6, 8, 226 }; 227 228 static const u32 cs42888_tdm_channels[] = { 229 1, 2, 3, 4, 5, 6, 7, 8, 230 }; 231 232 static bool format_is_dsd(struct snd_pcm_hw_params *params) 233 { 234 snd_pcm_format_t format = params_format(params); 235 236 switch (format) { 237 case SNDRV_PCM_FORMAT_DSD_U8: 238 case SNDRV_PCM_FORMAT_DSD_U16_LE: 239 case SNDRV_PCM_FORMAT_DSD_U16_BE: 240 case SNDRV_PCM_FORMAT_DSD_U32_LE: 241 case SNDRV_PCM_FORMAT_DSD_U32_BE: 242 return true; 243 default: 244 return false; 245 } 246 } 247 248 static bool format_is_tdm(struct dai_link_data *link_data) 249 { 250 if (link_data->slots > 2) 251 return true; 252 else 253 return false; 254 } 255 256 static bool codec_is_akcodec(unsigned int type) 257 { 258 switch (type) { 259 case CODEC_AK4458: 260 case CODEC_AK4497: 261 case CODEC_AK5558: 262 case CODEC_AK5552: 263 case CODEC_CS42888: 264 return true; 265 default: 266 break; 267 } 268 return false; 269 } 270 271 static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream, 272 struct snd_pcm_hw_params *params, 273 int slots, int slot_width) 274 { 275 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 276 struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card); 277 const struct imx_card_plat_data *plat_data = data->plat_data; 278 struct dai_link_data *link_data = &data->link_data[rtd->id]; 279 unsigned int width = slots * slot_width; 280 unsigned int rate = params_rate(params); 281 int i; 282 283 if (format_is_tdm(link_data)) { 284 for (i = 0; i < plat_data->num_tdm_fs_mul; i++) { 285 /* min = max = slots * slots_width */ 286 if (width != plat_data->tdm_fs_mul[i].min) 287 continue; 288 return rate * plat_data->tdm_fs_mul[i].mul; 289 } 290 } else { 291 for (i = 0; i < plat_data->num_fs_mul; i++) { 292 if (rate >= plat_data->fs_mul[i].rmin && 293 rate <= plat_data->fs_mul[i].rmax) { 294 width = max(width, plat_data->fs_mul[i].wmin); 295 width = min(width, plat_data->fs_mul[i].wmax); 296 297 /* Adjust SAI bclk:mclk ratio */ 298 width *= link_data->one2one_ratio ? 1 : 2; 299 300 return rate * width; 301 } 302 } 303 } 304 305 /* Let DAI manage clk frequency by default */ 306 return 0; 307 } 308 309 static int imx_aif_hw_params(struct snd_pcm_substream *substream, 310 struct snd_pcm_hw_params *params) 311 { 312 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 313 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 314 struct snd_soc_card *card = rtd->card; 315 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 316 struct dai_link_data *link_data = &data->link_data[rtd->id]; 317 struct imx_card_plat_data *plat_data = data->plat_data; 318 struct device *dev = card->dev; 319 struct snd_soc_dai *codec_dai; 320 unsigned long mclk_freq; 321 unsigned int fmt = rtd->dai_link->dai_fmt; 322 unsigned int slots, slot_width; 323 int ret, i; 324 325 slots = link_data->slots; 326 slot_width = link_data->slot_width; 327 328 if (!format_is_tdm(link_data)) { 329 if (format_is_dsd(params)) { 330 slots = 1; 331 slot_width = params_width(params); 332 fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | 333 SND_SOC_DAIFMT_PDM; 334 } else { 335 slots = 2; 336 slot_width = params_physical_width(params); 337 fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | 338 SND_SOC_DAIFMT_I2S; 339 } 340 } 341 342 ret = snd_soc_dai_set_fmt(cpu_dai, snd_soc_daifmt_clock_provider_flipped(fmt)); 343 if (ret && ret != -ENOTSUPP) { 344 dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); 345 return ret; 346 } 347 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 348 BIT(slots) - 1, 349 BIT(slots) - 1, 350 slots, slot_width); 351 if (ret && ret != -ENOTSUPP) { 352 dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); 353 return ret; 354 } 355 356 for_each_rtd_codec_dais(rtd, i, codec_dai) { 357 ret = snd_soc_dai_set_fmt(codec_dai, fmt); 358 if (ret && ret != -ENOTSUPP) { 359 dev_err(dev, "failed to set codec dai[%d] fmt: %d\n", i, ret); 360 return ret; 361 } 362 363 if (format_is_tdm(link_data)) { 364 ret = snd_soc_dai_set_tdm_slot(codec_dai, 365 BIT(slots) - 1, 366 BIT(slots) - 1, 367 slots, slot_width); 368 if (ret && ret != -ENOTSUPP) { 369 dev_err(dev, "failed to set codec dai[%d] tdm slot: %d\n", i, ret); 370 return ret; 371 } 372 } 373 } 374 375 /* Set MCLK freq */ 376 if (codec_is_akcodec(plat_data->type)) 377 mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width); 378 else 379 mclk_freq = params_rate(params) * slots * slot_width; 380 381 if (format_is_dsd(params)) { 382 /* Use the maximum freq from DSD512 (512*44100 = 22579200) */ 383 if (!(params_rate(params) % 11025)) 384 mclk_freq = IMX_CARD_MCLK_22P5792MHZ; 385 else 386 mclk_freq = IMX_CARD_MCLK_24P576MHZ; 387 } 388 389 ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq, 390 SND_SOC_CLOCK_OUT); 391 if (ret && ret != -ENOTSUPP) { 392 dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret); 393 return ret; 394 } 395 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk_freq, SND_SOC_CLOCK_IN); 396 if (ret && ret != -ENOTSUPP) { 397 dev_err(dev, "failed to set codec dai mclk rate (%lu): %d\n", mclk_freq, ret); 398 return ret; 399 } 400 401 return 0; 402 } 403 404 static int ak5558_hw_rule_rate(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *r) 405 { 406 struct dai_link_data *link_data = r->private; 407 struct snd_interval t = { .min = 8000, .max = 8000, }; 408 unsigned long mclk_freq; 409 unsigned int fs; 410 int i; 411 412 fs = hw_param_interval(p, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min; 413 fs *= link_data->slots; 414 415 /* Identify maximum supported rate */ 416 for (i = 0; i < ARRAY_SIZE(akcodec_rates); i++) { 417 mclk_freq = fs * akcodec_rates[i]; 418 /* Adjust SAI bclk:mclk ratio */ 419 mclk_freq *= link_data->one2one_ratio ? 1 : 2; 420 421 /* Skip rates for which MCLK is beyond supported value */ 422 if (mclk_freq > 36864000) 423 continue; 424 425 if (t.max < akcodec_rates[i]) 426 t.max = akcodec_rates[i]; 427 } 428 429 return snd_interval_refine(hw_param_interval(p, r->var), &t); 430 } 431 432 static int imx_aif_startup(struct snd_pcm_substream *substream) 433 { 434 struct snd_pcm_runtime *runtime = substream->runtime; 435 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 436 struct snd_soc_card *card = rtd->card; 437 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 438 struct dai_link_data *link_data = &data->link_data[rtd->id]; 439 static struct snd_pcm_hw_constraint_list constraint_rates; 440 static struct snd_pcm_hw_constraint_list constraint_channels; 441 int ret = 0; 442 443 if (format_is_tdm(link_data)) { 444 constraint_channels.list = data->plat_data->support_tdm_channels; 445 constraint_channels.count = data->plat_data->num_tdm_channels; 446 constraint_rates.list = data->plat_data->support_tdm_rates; 447 constraint_rates.count = data->plat_data->num_tdm_rates; 448 } else { 449 constraint_channels.list = data->plat_data->support_channels; 450 constraint_channels.count = data->plat_data->num_channels; 451 constraint_rates.list = data->plat_data->support_rates; 452 constraint_rates.count = data->plat_data->num_rates; 453 } 454 455 if (constraint_channels.count) { 456 ret = snd_pcm_hw_constraint_list(runtime, 0, 457 SNDRV_PCM_HW_PARAM_CHANNELS, 458 &constraint_channels); 459 if (ret) 460 return ret; 461 } 462 463 if (constraint_rates.count) { 464 ret = snd_pcm_hw_constraint_list(runtime, 0, 465 SNDRV_PCM_HW_PARAM_RATE, 466 &constraint_rates); 467 if (ret) 468 return ret; 469 } 470 471 if (data->plat_data->type == CODEC_AK5558) 472 ret = snd_pcm_hw_rule_add(substream->runtime, 0, 473 SNDRV_PCM_HW_PARAM_RATE, 474 ak5558_hw_rule_rate, link_data, 475 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); 476 477 return ret; 478 } 479 480 static const struct snd_soc_ops imx_aif_ops = { 481 .hw_params = imx_aif_hw_params, 482 .startup = imx_aif_startup, 483 }; 484 485 static const struct snd_soc_ops imx_aif_ops_be = { 486 .hw_params = imx_aif_hw_params, 487 }; 488 489 static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 490 struct snd_pcm_hw_params *params) 491 { 492 struct snd_soc_card *card = rtd->card; 493 struct imx_card_data *data = snd_soc_card_get_drvdata(card); 494 struct snd_interval *rate; 495 struct snd_mask *mask; 496 497 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 498 rate->max = data->asrc_rate; 499 rate->min = data->asrc_rate; 500 501 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 502 snd_mask_none(mask); 503 snd_mask_set(mask, (__force unsigned int)data->asrc_format); 504 505 return 0; 506 } 507 508 static int imx_card_parse_of(struct imx_card_data *data) 509 { 510 struct imx_card_plat_data *plat_data = data->plat_data; 511 struct snd_soc_card *card = &data->card; 512 struct snd_soc_dai_link_component *dlc; 513 struct device_node *platform = NULL; 514 struct device_node *codec = NULL; 515 struct device_node *cpu = NULL; 516 struct device_node *np; 517 struct device *dev = card->dev; 518 struct snd_soc_dai_link *link; 519 struct dai_link_data *link_data; 520 struct of_phandle_args args; 521 bool playback_only, capture_only; 522 int ret, num_links; 523 u32 asrc_fmt = 0; 524 u32 width; 525 526 ret = snd_soc_of_parse_card_name(card, "model"); 527 if (ret) { 528 dev_err(dev, "Error parsing card name: %d\n", ret); 529 return ret; 530 } 531 532 /* DAPM routes */ 533 if (of_property_present(dev->of_node, "audio-routing")) { 534 ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); 535 if (ret) 536 return ret; 537 } 538 539 /* Populate links */ 540 num_links = of_get_child_count(dev->of_node); 541 542 /* Allocate the DAI link array */ 543 card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 544 if (!card->dai_link) 545 return -ENOMEM; 546 547 data->link_data = devm_kcalloc(dev, num_links, sizeof(*link_data), GFP_KERNEL); 548 if (!data->link_data) 549 return -ENOMEM; 550 551 card->num_links = num_links; 552 link = card->dai_link; 553 link_data = data->link_data; 554 555 for_each_child_of_node(dev->of_node, np) { 556 dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); 557 if (!dlc) { 558 ret = -ENOMEM; 559 goto err_put_np; 560 } 561 562 link->cpus = &dlc[0]; 563 link->platforms = &dlc[1]; 564 565 link->num_cpus = 1; 566 link->num_platforms = 1; 567 568 ret = of_property_read_string(np, "link-name", &link->name); 569 if (ret) { 570 dev_err(card->dev, "error getting codec dai_link name\n"); 571 goto err_put_np; 572 } 573 574 cpu = of_get_child_by_name(np, "cpu"); 575 if (!cpu) { 576 dev_err(dev, "%s: Can't find cpu DT node\n", link->name); 577 ret = -EINVAL; 578 goto err; 579 } 580 581 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0); 582 if (ret) { 583 dev_err_probe(card->dev, ret, 584 "%s: error getting cpu dai info\n", link->name); 585 goto err; 586 } 587 588 if (of_node_name_eq(args.np, "sai")) { 589 /* sai sysclk id */ 590 link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1; 591 592 /* sai may support mclk/bclk = 1 */ 593 if (of_property_read_bool(np, "fsl,mclk-equal-bclk")) { 594 link_data->one2one_ratio = true; 595 } else { 596 int i; 597 598 /* 599 * i.MX8MQ don't support one2one ratio, then 600 * with ak4497 only 16bit case is supported. 601 */ 602 for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) { 603 if (ak4497_fs_mul[i].rmin == 705600 && 604 ak4497_fs_mul[i].rmax == 768000) { 605 ak4497_fs_mul[i].wmin = 32; 606 ak4497_fs_mul[i].wmax = 32; 607 } 608 } 609 } 610 } 611 612 link->platforms->of_node = link->cpus->of_node; 613 link->id = args.args[0]; 614 615 codec = of_get_child_by_name(np, "codec"); 616 if (codec) { 617 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); 618 if (ret < 0) { 619 dev_err_probe(dev, ret, "%s: codec dai not found\n", 620 link->name); 621 goto err; 622 } 623 624 plat_data->num_codecs = link->num_codecs; 625 626 /* Check the akcodec type */ 627 if (!strcmp(link->codecs->dai_name, "ak4458-aif")) 628 plat_data->type = CODEC_AK4458; 629 else if (!strcmp(link->codecs->dai_name, "ak4497-aif")) 630 plat_data->type = CODEC_AK4497; 631 else if (!strcmp(link->codecs->dai_name, "ak5558-aif")) 632 plat_data->type = CODEC_AK5558; 633 else if (!strcmp(link->codecs->dai_name, "ak5552-aif")) 634 plat_data->type = CODEC_AK5552; 635 else if (!strcmp(link->codecs->dai_name, "cs42888")) 636 plat_data->type = CODEC_CS42888; 637 638 } else { 639 link->codecs = &snd_soc_dummy_dlc; 640 link->num_codecs = 1; 641 } 642 643 if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) { 644 /* DPCM frontend */ 645 link->dynamic = 1; 646 link->dpcm_merged_chan = 1; 647 648 ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate); 649 if (ret) { 650 dev_err(dev, "failed to get output rate\n"); 651 ret = -EINVAL; 652 goto err; 653 } 654 655 ret = of_property_read_u32(args.np, "fsl,asrc-format", &asrc_fmt); 656 data->asrc_format = (__force snd_pcm_format_t)asrc_fmt; 657 if (ret) { 658 /* Fallback to old binding; translate to asrc_format */ 659 ret = of_property_read_u32(args.np, "fsl,asrc-width", &width); 660 if (ret) { 661 dev_err(dev, 662 "failed to decide output format\n"); 663 goto err; 664 } 665 666 if (width == 24) 667 data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; 668 else 669 data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; 670 } 671 } else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) { 672 /* DPCM backend */ 673 link->no_pcm = 1; 674 link->platforms->of_node = NULL; 675 link->platforms->name = "snd-soc-dummy"; 676 677 link->be_hw_params_fixup = be_hw_params_fixup; 678 link->ops = &imx_aif_ops_be; 679 } else { 680 link->ops = &imx_aif_ops; 681 } 682 683 graph_util_parse_link_direction(np, &playback_only, &capture_only); 684 link->playback_only = playback_only; 685 link->capture_only = capture_only; 686 687 /* Get dai fmt */ 688 ret = simple_util_parse_daifmt(dev, np, codec, 689 NULL, &link->dai_fmt); 690 if (ret) 691 link->dai_fmt = SND_SOC_DAIFMT_NB_NF | 692 SND_SOC_DAIFMT_CBC_CFC | 693 SND_SOC_DAIFMT_I2S; 694 695 /* Get tdm slot */ 696 snd_soc_of_parse_tdm_slot(np, NULL, NULL, 697 &link_data->slots, 698 &link_data->slot_width); 699 /* default value */ 700 if (!link_data->slots) 701 link_data->slots = 2; 702 703 if (!link_data->slot_width) 704 link_data->slot_width = 32; 705 706 link->ignore_pmdown_time = 1; 707 link->stream_name = link->name; 708 link++; 709 link_data++; 710 711 of_node_put(cpu); 712 of_node_put(codec); 713 of_node_put(platform); 714 715 cpu = NULL; 716 codec = NULL; 717 platform = NULL; 718 } 719 720 return 0; 721 err: 722 of_node_put(cpu); 723 of_node_put(codec); 724 of_node_put(platform); 725 err_put_np: 726 of_node_put(np); 727 return ret; 728 } 729 730 static int imx_card_probe(struct platform_device *pdev) 731 { 732 struct snd_soc_dai_link *link_be = NULL, *link; 733 struct imx_card_plat_data *plat_data; 734 struct imx_card_data *data; 735 int ret, i; 736 737 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 738 if (!data) 739 return -ENOMEM; 740 741 plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL); 742 if (!plat_data) 743 return -ENOMEM; 744 745 data->plat_data = plat_data; 746 data->card.dev = &pdev->dev; 747 data->card.owner = THIS_MODULE; 748 749 dev_set_drvdata(&pdev->dev, &data->card); 750 snd_soc_card_set_drvdata(&data->card, data); 751 ret = imx_card_parse_of(data); 752 if (ret) 753 return ret; 754 755 data->num_dapm_routes = plat_data->num_codecs + 1; 756 data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes, 757 sizeof(struct snd_soc_dapm_route), 758 GFP_KERNEL); 759 if (!data->dapm_routes) 760 return -ENOMEM; 761 762 /* configure the dapm routes */ 763 switch (plat_data->type) { 764 case CODEC_AK4458: 765 case CODEC_AK4497: 766 if (plat_data->num_codecs == 1) { 767 data->dapm_routes[0].sink = "Playback"; 768 data->dapm_routes[0].source = "CPU-Playback"; 769 i = 1; 770 } else { 771 for (i = 0; i < plat_data->num_codecs; i++) { 772 data->dapm_routes[i].sink = 773 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 774 i + 1, "Playback"); 775 if (!data->dapm_routes[i].sink) 776 return -ENOMEM; 777 data->dapm_routes[i].source = "CPU-Playback"; 778 } 779 } 780 data->dapm_routes[i].sink = "CPU-Playback"; 781 data->dapm_routes[i].source = "ASRC-Playback"; 782 break; 783 case CODEC_AK5558: 784 case CODEC_AK5552: 785 if (plat_data->num_codecs == 1) { 786 data->dapm_routes[0].sink = "CPU-Capture"; 787 data->dapm_routes[0].source = "Capture"; 788 i = 1; 789 } else { 790 for (i = 0; i < plat_data->num_codecs; i++) { 791 data->dapm_routes[i].source = 792 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 793 i + 1, "Capture"); 794 if (!data->dapm_routes[i].source) 795 return -ENOMEM; 796 data->dapm_routes[i].sink = "CPU-Capture"; 797 } 798 } 799 data->dapm_routes[i].sink = "ASRC-Capture"; 800 data->dapm_routes[i].source = "CPU-Capture"; 801 break; 802 case CODEC_CS42888: 803 data->dapm_routes[0].sink = "Playback"; 804 data->dapm_routes[0].source = "CPU-Playback"; 805 data->dapm_routes[1].sink = "CPU-Capture"; 806 data->dapm_routes[1].source = "Capture"; 807 break; 808 default: 809 break; 810 } 811 812 /* default platform data for akcodecs */ 813 if (codec_is_akcodec(plat_data->type)) { 814 plat_data->support_rates = akcodec_rates; 815 plat_data->num_rates = ARRAY_SIZE(akcodec_rates); 816 plat_data->support_tdm_rates = akcodec_tdm_rates; 817 plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates); 818 819 switch (plat_data->type) { 820 case CODEC_AK4458: 821 plat_data->fs_mul = ak4458_fs_mul; 822 plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul); 823 plat_data->tdm_fs_mul = ak4458_tdm_fs_mul; 824 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul); 825 plat_data->support_channels = ak4458_channels; 826 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 827 plat_data->support_tdm_channels = ak4458_tdm_channels; 828 plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels); 829 break; 830 case CODEC_AK4497: 831 plat_data->fs_mul = ak4497_fs_mul; 832 plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul); 833 plat_data->support_channels = ak4458_channels; 834 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 835 break; 836 case CODEC_AK5558: 837 case CODEC_AK5552: 838 plat_data->fs_mul = ak5558_fs_mul; 839 plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul); 840 plat_data->tdm_fs_mul = ak5558_tdm_fs_mul; 841 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul); 842 plat_data->support_channels = ak5558_channels; 843 plat_data->num_channels = ARRAY_SIZE(ak5558_channels); 844 plat_data->support_tdm_channels = ak5558_tdm_channels; 845 plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels); 846 break; 847 case CODEC_CS42888: 848 plat_data->fs_mul = cs42888_fs_mul; 849 plat_data->num_fs_mul = ARRAY_SIZE(cs42888_fs_mul); 850 plat_data->tdm_fs_mul = cs42888_tdm_fs_mul; 851 plat_data->num_tdm_fs_mul = ARRAY_SIZE(cs42888_tdm_fs_mul); 852 plat_data->support_channels = cs42888_channels; 853 plat_data->num_channels = ARRAY_SIZE(cs42888_channels); 854 plat_data->support_tdm_channels = cs42888_tdm_channels; 855 plat_data->num_tdm_channels = ARRAY_SIZE(cs42888_tdm_channels); 856 break; 857 default: 858 break; 859 } 860 } 861 862 /* with asrc as front end */ 863 if (data->card.num_links == 3) { 864 data->card.dapm_routes = data->dapm_routes; 865 data->card.num_dapm_routes = data->num_dapm_routes; 866 for_each_card_prelinks(&data->card, i, link) { 867 if (link->no_pcm == 1) 868 link_be = link; 869 } 870 for_each_card_prelinks(&data->card, i, link) { 871 if (link->dynamic == 1 && link_be) { 872 link->playback_only = link_be->playback_only; 873 link->capture_only = link_be->capture_only; 874 } 875 } 876 } 877 878 ret = devm_snd_soc_register_card(&pdev->dev, &data->card); 879 if (ret) 880 return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); 881 882 return 0; 883 } 884 885 static const struct of_device_id imx_card_dt_ids[] = { 886 { .compatible = "fsl,imx-audio-card", }, 887 { }, 888 }; 889 MODULE_DEVICE_TABLE(of, imx_card_dt_ids); 890 891 static struct platform_driver imx_card_driver = { 892 .driver = { 893 .name = "imx-card", 894 .pm = &snd_soc_pm_ops, 895 .of_match_table = imx_card_dt_ids, 896 }, 897 .probe = imx_card_probe, 898 }; 899 module_platform_driver(imx_card_driver); 900 901 MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver"); 902 MODULE_LICENSE("GPL v2"); 903 MODULE_ALIAS("platform:imx-card"); 904