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 int ret, num_links; 522 u32 asrc_fmt = 0; 523 u32 width; 524 525 ret = snd_soc_of_parse_card_name(card, "model"); 526 if (ret) { 527 dev_err(dev, "Error parsing card name: %d\n", ret); 528 return ret; 529 } 530 531 /* DAPM routes */ 532 if (of_property_read_bool(dev->of_node, "audio-routing")) { 533 ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); 534 if (ret) 535 return ret; 536 } 537 538 /* Populate links */ 539 num_links = of_get_child_count(dev->of_node); 540 541 /* Allocate the DAI link array */ 542 card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 543 if (!card->dai_link) 544 return -ENOMEM; 545 546 data->link_data = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 547 if (!data->link_data) 548 return -ENOMEM; 549 550 card->num_links = num_links; 551 link = card->dai_link; 552 link_data = data->link_data; 553 554 for_each_child_of_node(dev->of_node, np) { 555 dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); 556 if (!dlc) { 557 ret = -ENOMEM; 558 goto err_put_np; 559 } 560 561 link->cpus = &dlc[0]; 562 link->platforms = &dlc[1]; 563 564 link->num_cpus = 1; 565 link->num_platforms = 1; 566 567 ret = of_property_read_string(np, "link-name", &link->name); 568 if (ret) { 569 dev_err(card->dev, "error getting codec dai_link name\n"); 570 goto err_put_np; 571 } 572 573 cpu = of_get_child_by_name(np, "cpu"); 574 if (!cpu) { 575 dev_err(dev, "%s: Can't find cpu DT node\n", link->name); 576 ret = -EINVAL; 577 goto err; 578 } 579 580 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0); 581 if (ret) { 582 dev_err_probe(card->dev, ret, 583 "%s: error getting cpu dai info\n", link->name); 584 goto err; 585 } 586 587 if (of_node_name_eq(args.np, "sai")) { 588 /* sai sysclk id */ 589 link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1; 590 591 /* sai may support mclk/bclk = 1 */ 592 if (of_property_read_bool(np, "fsl,mclk-equal-bclk")) { 593 link_data->one2one_ratio = true; 594 } else { 595 int i; 596 597 /* 598 * i.MX8MQ don't support one2one ratio, then 599 * with ak4497 only 16bit case is supported. 600 */ 601 for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) { 602 if (ak4497_fs_mul[i].rmin == 705600 && 603 ak4497_fs_mul[i].rmax == 768000) { 604 ak4497_fs_mul[i].wmin = 32; 605 ak4497_fs_mul[i].wmax = 32; 606 } 607 } 608 } 609 } 610 611 link->platforms->of_node = link->cpus->of_node; 612 link->id = args.args[0]; 613 614 codec = of_get_child_by_name(np, "codec"); 615 if (codec) { 616 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); 617 if (ret < 0) { 618 dev_err_probe(dev, ret, "%s: codec dai not found\n", 619 link->name); 620 goto err; 621 } 622 623 plat_data->num_codecs = link->num_codecs; 624 625 /* Check the akcodec type */ 626 if (!strcmp(link->codecs->dai_name, "ak4458-aif")) 627 plat_data->type = CODEC_AK4458; 628 else if (!strcmp(link->codecs->dai_name, "ak4497-aif")) 629 plat_data->type = CODEC_AK4497; 630 else if (!strcmp(link->codecs->dai_name, "ak5558-aif")) 631 plat_data->type = CODEC_AK5558; 632 else if (!strcmp(link->codecs->dai_name, "ak5552-aif")) 633 plat_data->type = CODEC_AK5552; 634 else if (!strcmp(link->codecs->dai_name, "cs42888")) 635 plat_data->type = CODEC_CS42888; 636 637 } else { 638 link->codecs = &snd_soc_dummy_dlc; 639 link->num_codecs = 1; 640 } 641 642 if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) { 643 /* DPCM frontend */ 644 link->dynamic = 1; 645 link->dpcm_merged_chan = 1; 646 647 ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate); 648 if (ret) { 649 dev_err(dev, "failed to get output rate\n"); 650 ret = -EINVAL; 651 goto err; 652 } 653 654 ret = of_property_read_u32(args.np, "fsl,asrc-format", &asrc_fmt); 655 data->asrc_format = (__force snd_pcm_format_t)asrc_fmt; 656 if (ret) { 657 /* Fallback to old binding; translate to asrc_format */ 658 ret = of_property_read_u32(args.np, "fsl,asrc-width", &width); 659 if (ret) { 660 dev_err(dev, 661 "failed to decide output format\n"); 662 goto err; 663 } 664 665 if (width == 24) 666 data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; 667 else 668 data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; 669 } 670 } else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) { 671 /* DPCM backend */ 672 link->no_pcm = 1; 673 link->platforms->of_node = NULL; 674 link->platforms->name = "snd-soc-dummy"; 675 676 link->be_hw_params_fixup = be_hw_params_fixup; 677 link->ops = &imx_aif_ops_be; 678 } else { 679 link->ops = &imx_aif_ops; 680 } 681 682 /* Get dai fmt */ 683 ret = simple_util_parse_daifmt(dev, np, codec, 684 NULL, &link->dai_fmt); 685 if (ret) 686 link->dai_fmt = SND_SOC_DAIFMT_NB_NF | 687 SND_SOC_DAIFMT_CBC_CFC | 688 SND_SOC_DAIFMT_I2S; 689 690 /* Get tdm slot */ 691 snd_soc_of_parse_tdm_slot(np, NULL, NULL, 692 &link_data->slots, 693 &link_data->slot_width); 694 /* default value */ 695 if (!link_data->slots) 696 link_data->slots = 2; 697 698 if (!link_data->slot_width) 699 link_data->slot_width = 32; 700 701 link->ignore_pmdown_time = 1; 702 link->stream_name = link->name; 703 link++; 704 link_data++; 705 706 of_node_put(cpu); 707 of_node_put(codec); 708 of_node_put(platform); 709 710 cpu = NULL; 711 codec = NULL; 712 platform = NULL; 713 } 714 715 return 0; 716 err: 717 of_node_put(cpu); 718 of_node_put(codec); 719 of_node_put(platform); 720 err_put_np: 721 of_node_put(np); 722 return ret; 723 } 724 725 static int imx_card_probe(struct platform_device *pdev) 726 { 727 struct snd_soc_dai_link *link_be = NULL, *link; 728 struct imx_card_plat_data *plat_data; 729 struct imx_card_data *data; 730 int ret, i; 731 732 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 733 if (!data) 734 return -ENOMEM; 735 736 plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL); 737 if (!plat_data) 738 return -ENOMEM; 739 740 data->plat_data = plat_data; 741 data->card.dev = &pdev->dev; 742 data->card.owner = THIS_MODULE; 743 744 dev_set_drvdata(&pdev->dev, &data->card); 745 snd_soc_card_set_drvdata(&data->card, data); 746 ret = imx_card_parse_of(data); 747 if (ret) 748 return ret; 749 750 data->num_dapm_routes = plat_data->num_codecs + 1; 751 data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes, 752 sizeof(struct snd_soc_dapm_route), 753 GFP_KERNEL); 754 if (!data->dapm_routes) 755 return -ENOMEM; 756 757 /* configure the dapm routes */ 758 switch (plat_data->type) { 759 case CODEC_AK4458: 760 case CODEC_AK4497: 761 if (plat_data->num_codecs == 1) { 762 data->dapm_routes[0].sink = "Playback"; 763 data->dapm_routes[0].source = "CPU-Playback"; 764 i = 1; 765 } else { 766 for (i = 0; i < plat_data->num_codecs; i++) { 767 data->dapm_routes[i].sink = 768 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 769 i + 1, "Playback"); 770 data->dapm_routes[i].source = "CPU-Playback"; 771 } 772 } 773 data->dapm_routes[i].sink = "CPU-Playback"; 774 data->dapm_routes[i].source = "ASRC-Playback"; 775 break; 776 case CODEC_AK5558: 777 case CODEC_AK5552: 778 if (plat_data->num_codecs == 1) { 779 data->dapm_routes[0].sink = "CPU-Capture"; 780 data->dapm_routes[0].source = "Capture"; 781 i = 1; 782 } else { 783 for (i = 0; i < plat_data->num_codecs; i++) { 784 data->dapm_routes[i].source = 785 devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", 786 i + 1, "Capture"); 787 data->dapm_routes[i].sink = "CPU-Capture"; 788 } 789 } 790 data->dapm_routes[i].sink = "ASRC-Capture"; 791 data->dapm_routes[i].source = "CPU-Capture"; 792 break; 793 case CODEC_CS42888: 794 data->dapm_routes[0].sink = "Playback"; 795 data->dapm_routes[0].source = "CPU-Playback"; 796 data->dapm_routes[1].sink = "CPU-Capture"; 797 data->dapm_routes[1].source = "Capture"; 798 break; 799 default: 800 break; 801 } 802 803 /* default platform data for akcodecs */ 804 if (codec_is_akcodec(plat_data->type)) { 805 plat_data->support_rates = akcodec_rates; 806 plat_data->num_rates = ARRAY_SIZE(akcodec_rates); 807 plat_data->support_tdm_rates = akcodec_tdm_rates; 808 plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates); 809 810 switch (plat_data->type) { 811 case CODEC_AK4458: 812 plat_data->fs_mul = ak4458_fs_mul; 813 plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul); 814 plat_data->tdm_fs_mul = ak4458_tdm_fs_mul; 815 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul); 816 plat_data->support_channels = ak4458_channels; 817 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 818 plat_data->support_tdm_channels = ak4458_tdm_channels; 819 plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels); 820 break; 821 case CODEC_AK4497: 822 plat_data->fs_mul = ak4497_fs_mul; 823 plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul); 824 plat_data->support_channels = ak4458_channels; 825 plat_data->num_channels = ARRAY_SIZE(ak4458_channels); 826 break; 827 case CODEC_AK5558: 828 case CODEC_AK5552: 829 plat_data->fs_mul = ak5558_fs_mul; 830 plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul); 831 plat_data->tdm_fs_mul = ak5558_tdm_fs_mul; 832 plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul); 833 plat_data->support_channels = ak5558_channels; 834 plat_data->num_channels = ARRAY_SIZE(ak5558_channels); 835 plat_data->support_tdm_channels = ak5558_tdm_channels; 836 plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels); 837 break; 838 case CODEC_CS42888: 839 plat_data->fs_mul = cs42888_fs_mul; 840 plat_data->num_fs_mul = ARRAY_SIZE(cs42888_fs_mul); 841 plat_data->tdm_fs_mul = cs42888_tdm_fs_mul; 842 plat_data->num_tdm_fs_mul = ARRAY_SIZE(cs42888_tdm_fs_mul); 843 plat_data->support_channels = cs42888_channels; 844 plat_data->num_channels = ARRAY_SIZE(cs42888_channels); 845 plat_data->support_tdm_channels = cs42888_tdm_channels; 846 plat_data->num_tdm_channels = ARRAY_SIZE(cs42888_tdm_channels); 847 break; 848 default: 849 break; 850 } 851 } 852 853 /* with asrc as front end */ 854 if (data->card.num_links == 3) { 855 data->card.dapm_routes = data->dapm_routes; 856 data->card.num_dapm_routes = data->num_dapm_routes; 857 for_each_card_prelinks(&data->card, i, link) { 858 if (link->no_pcm == 1) 859 link_be = link; 860 } 861 for_each_card_prelinks(&data->card, i, link) { 862 if (link->dynamic == 1 && link_be) { 863 link->playback_only = link_be->playback_only; 864 link->capture_only = link_be->capture_only; 865 } 866 } 867 } 868 869 ret = devm_snd_soc_register_card(&pdev->dev, &data->card); 870 if (ret) 871 return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); 872 873 return 0; 874 } 875 876 static const struct of_device_id imx_card_dt_ids[] = { 877 { .compatible = "fsl,imx-audio-card", }, 878 { }, 879 }; 880 MODULE_DEVICE_TABLE(of, imx_card_dt_ids); 881 882 static struct platform_driver imx_card_driver = { 883 .driver = { 884 .name = "imx-card", 885 .pm = &snd_soc_pm_ops, 886 .of_match_table = imx_card_dt_ids, 887 }, 888 .probe = imx_card_probe, 889 }; 890 module_platform_driver(imx_card_driver); 891 892 MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver"); 893 MODULE_LICENSE("GPL v2"); 894 MODULE_ALIAS("platform:imx-card"); 895