sound/soc/ti/j721e-evm.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  *  Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
   4  *  Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
   5  */
   6
   7 #include <linux/clk.h>
   8 #include <linux/module.h>
   9 #include <linux/of.h>
  10 #include <linux/platform_device.h>
  11
  12 #include <sound/core.h>
  13 #include <sound/pcm.h>
  14 #include <sound/pcm_params.h>
  15 #include <sound/soc.h>
  16
  17 #include "davinci-mcasp.h"
  18
  19 /*
  20  * Maximum number of configuration entries for prefixes:
  21  * CPB: 2 (mcasp10 + codec)
  22  * IVI: 3 (mcasp0 + 2x codec)
  23  */
  24 #define J721E_CODEC_CONF_COUNT  5
  25
  26 enum j721e_audio_domain_id {
  27         J721E_AUDIO_DOMAIN_CPB = 0,
  28         J721E_AUDIO_DOMAIN_IVI,
  29         J721E_AUDIO_DOMAIN_LAST,
  30 };
  31
  32 #define J721E_CLK_PARENT_48000  0
  33 #define J721E_CLK_PARENT_44100  1
  34
  35 #define J721E_MAX_CLK_HSDIV     128
  36 #define PCM1368A_MAX_SYSCLK     36864000
  37
  38 #define J721E_DAI_FMT           (SND_SOC_DAIFMT_RIGHT_J | \
  39                                  SND_SOC_DAIFMT_NB_NF |   \
  40                                  SND_SOC_DAIFMT_CBS_CFS)
  41
  42 enum j721e_board_type {
  43         J721E_BOARD_CPB = 1,
  44         J721E_BOARD_CPB_IVI,
  45 };
  46
  47 struct j721e_audio_match_data {
  48         enum j721e_board_type board_type;
  49         int num_links;
  50         unsigned int pll_rates[2];
  51 };
  52
  53 static unsigned int ratios_for_pcm3168a[] = {
  54         256,
  55         512,
  56         768,
  57 };
  58
  59 struct j721e_audio_clocks {
  60         struct clk *target;
  61         struct clk *parent[2];
  62 };
  63
  64 struct j721e_audio_domain {
  65         struct j721e_audio_clocks codec;
  66         struct j721e_audio_clocks mcasp;
  67         int parent_clk_id;
  68
  69         int active;
  70         unsigned int active_link;
  71         unsigned int rate;
  72 };
  73
  74 struct j721e_priv {
  75         struct device *dev;
  76         struct snd_soc_card card;
  77         struct snd_soc_dai_link *dai_links;
  78         struct snd_soc_codec_conf codec_conf[J721E_CODEC_CONF_COUNT];
  79         struct snd_interval rate_range;
  80         const struct j721e_audio_match_data *match_data;
  81         u32 pll_rates[2];
  82         unsigned int hsdiv_rates[2];
  83
  84         struct j721e_audio_domain audio_domains[J721E_AUDIO_DOMAIN_LAST];
  85
  86         struct mutex mutex;
  87 };
  88
  89 static const struct snd_soc_dapm_widget j721e_cpb_dapm_widgets[] = {
  90         SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
  91         SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
  92         SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
  93         SND_SOC_DAPM_LINE("CPB Line Out", NULL),
  94         SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
  95         SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
  96         SND_SOC_DAPM_LINE("CPB Line In", NULL),
  97 };
  98
  99 static const struct snd_soc_dapm_route j721e_cpb_dapm_routes[] = {
 100         {"CPB Stereo HP 1", NULL, "codec-1 AOUT1L"},
 101         {"CPB Stereo HP 1", NULL, "codec-1 AOUT1R"},
 102         {"CPB Stereo HP 2", NULL, "codec-1 AOUT2L"},
 103         {"CPB Stereo HP 2", NULL, "codec-1 AOUT2R"},
 104         {"CPB Stereo HP 3", NULL, "codec-1 AOUT3L"},
 105         {"CPB Stereo HP 3", NULL, "codec-1 AOUT3R"},
 106         {"CPB Line Out", NULL, "codec-1 AOUT4L"},
 107         {"CPB Line Out", NULL, "codec-1 AOUT4R"},
 108
 109         {"codec-1 AIN1L", NULL, "CPB Stereo Mic 1"},
 110         {"codec-1 AIN1R", NULL, "CPB Stereo Mic 1"},
 111         {"codec-1 AIN2L", NULL, "CPB Stereo Mic 2"},
 112         {"codec-1 AIN2R", NULL, "CPB Stereo Mic 2"},
 113         {"codec-1 AIN3L", NULL, "CPB Line In"},
 114         {"codec-1 AIN3R", NULL, "CPB Line In"},
 115 };
 116
 117 static const struct snd_soc_dapm_widget j721e_ivi_codec_a_dapm_widgets[] = {
 118         SND_SOC_DAPM_LINE("IVI A Line Out 1", NULL),
 119         SND_SOC_DAPM_LINE("IVI A Line Out 2", NULL),
 120         SND_SOC_DAPM_LINE("IVI A Line Out 3", NULL),
 121         SND_SOC_DAPM_LINE("IVI A Line Out 4", NULL),
 122         SND_SOC_DAPM_MIC("IVI A Stereo Mic 1", NULL),
 123         SND_SOC_DAPM_MIC("IVI A Stereo Mic 2", NULL),
 124         SND_SOC_DAPM_LINE("IVI A Line In", NULL),
 125 };
 126
 127 static const struct snd_soc_dapm_route j721e_codec_a_dapm_routes[] = {
 128         {"IVI A Line Out 1", NULL, "codec-a AOUT1L"},
 129         {"IVI A Line Out 1", NULL, "codec-a AOUT1R"},
 130         {"IVI A Line Out 2", NULL, "codec-a AOUT2L"},
 131         {"IVI A Line Out 2", NULL, "codec-a AOUT2R"},
 132         {"IVI A Line Out 3", NULL, "codec-a AOUT3L"},
 133         {"IVI A Line Out 3", NULL, "codec-a AOUT3R"},
 134         {"IVI A Line Out 4", NULL, "codec-a AOUT4L"},
 135         {"IVI A Line Out 4", NULL, "codec-a AOUT4R"},
 136
 137         {"codec-a AIN1L", NULL, "IVI A Stereo Mic 1"},
 138         {"codec-a AIN1R", NULL, "IVI A Stereo Mic 1"},
 139         {"codec-a AIN2L", NULL, "IVI A Stereo Mic 2"},
 140         {"codec-a AIN2R", NULL, "IVI A Stereo Mic 2"},
 141         {"codec-a AIN3L", NULL, "IVI A Line In"},
 142         {"codec-a AIN3R", NULL, "IVI A Line In"},
 143 };
 144
 145 static const struct snd_soc_dapm_widget j721e_ivi_codec_b_dapm_widgets[] = {
 146         SND_SOC_DAPM_LINE("IVI B Line Out 1", NULL),
 147         SND_SOC_DAPM_LINE("IVI B Line Out 2", NULL),
 148         SND_SOC_DAPM_LINE("IVI B Line Out 3", NULL),
 149         SND_SOC_DAPM_LINE("IVI B Line Out 4", NULL),
 150         SND_SOC_DAPM_MIC("IVI B Stereo Mic 1", NULL),
 151         SND_SOC_DAPM_MIC("IVI B Stereo Mic 2", NULL),
 152         SND_SOC_DAPM_LINE("IVI B Line In", NULL),
 153 };
 154
 155 static const struct snd_soc_dapm_route j721e_codec_b_dapm_routes[] = {
 156         {"IVI B Line Out 1", NULL, "codec-b AOUT1L"},
 157         {"IVI B Line Out 1", NULL, "codec-b AOUT1R"},
 158         {"IVI B Line Out 2", NULL, "codec-b AOUT2L"},
 159         {"IVI B Line Out 2", NULL, "codec-b AOUT2R"},
 160         {"IVI B Line Out 3", NULL, "codec-b AOUT3L"},
 161         {"IVI B Line Out 3", NULL, "codec-b AOUT3R"},
 162         {"IVI B Line Out 4", NULL, "codec-b AOUT4L"},
 163         {"IVI B Line Out 4", NULL, "codec-b AOUT4R"},
 164
 165         {"codec-b AIN1L", NULL, "IVI B Stereo Mic 1"},
 166         {"codec-b AIN1R", NULL, "IVI B Stereo Mic 1"},
 167         {"codec-b AIN2L", NULL, "IVI B Stereo Mic 2"},
 168         {"codec-b AIN2R", NULL, "IVI B Stereo Mic 2"},
 169         {"codec-b AIN3L", NULL, "IVI B Line In"},
 170         {"codec-b AIN3R", NULL, "IVI B Line In"},
 171 };
 172
 173 static int j721e_configure_refclk(struct j721e_priv *priv,
 174                                   unsigned int audio_domain, unsigned int rate)
 175 {
 176         struct j721e_audio_domain *domain = &priv->audio_domains[audio_domain];
 177         unsigned int scki;
 178         int ret = -EINVAL;
 179         int i, clk_id;
 180
 181         if (!(rate % 8000) && priv->pll_rates[J721E_CLK_PARENT_48000])
 182                 clk_id = J721E_CLK_PARENT_48000;
 183         else if (!(rate % 11025) && priv->pll_rates[J721E_CLK_PARENT_44100])
 184                 clk_id = J721E_CLK_PARENT_44100;
 185         else
 186                 return ret;
 187
 188         for (i = 0; i < ARRAY_SIZE(ratios_for_pcm3168a); i++) {
 189                 scki = ratios_for_pcm3168a[i] * rate;
 190
 191                 if (priv->pll_rates[clk_id] / scki <= J721E_MAX_CLK_HSDIV) {
 192                         ret = 0;
 193                         break;
 194                 }
 195         }
 196
 197         if (ret) {
 198                 dev_err(priv->dev, "No valid clock configuration for %u Hz\n",
 199                         rate);
 200                 return ret;
 201         }
 202
 203         if (domain->parent_clk_id == -1 || priv->hsdiv_rates[domain->parent_clk_id] != scki) {
 204                 dev_dbg(priv->dev,
 205                         "domain%u configuration for %u Hz: %s, %dxFS (SCKI: %u Hz)\n",
 206                         audio_domain, rate,
 207                         clk_id == J721E_CLK_PARENT_48000 ? "PLL4" : "PLL15",
 208                         ratios_for_pcm3168a[i], scki);
 209
 210                 if (domain->parent_clk_id != clk_id) {
 211                         ret = clk_set_parent(domain->codec.target,
 212                                              domain->codec.parent[clk_id]);
 213                         if (ret)
 214                                 return ret;
 215
 216                         ret = clk_set_parent(domain->mcasp.target,
 217                                              domain->mcasp.parent[clk_id]);
 218                         if (ret)
 219                                 return ret;
 220
 221                         domain->parent_clk_id = clk_id;
 222                 }
 223
 224                 ret = clk_set_rate(domain->codec.target, scki);
 225                 if (ret) {
 226                         dev_err(priv->dev, "codec set rate failed for %u Hz\n",
 227                                 scki);
 228                         return ret;
 229                 }
 230
 231                 ret = clk_set_rate(domain->mcasp.target, scki);
 232                 if (!ret) {
 233                         priv->hsdiv_rates[domain->parent_clk_id] = scki;
 234                 } else {
 235                         dev_err(priv->dev, "mcasp set rate failed for %u Hz\n",
 236                                 scki);
 237                         return ret;
 238                 }
 239         }
 240
 241         return ret;
 242 }
 243
 244 static int j721e_rule_rate(struct snd_pcm_hw_params *params,
 245                            struct snd_pcm_hw_rule *rule)
 246 {
 247         struct snd_interval *t = rule->private;
 248
 249         return snd_interval_refine(hw_param_interval(params, rule->var), t);
 250 }
 251
 252 static int j721e_audio_startup(struct snd_pcm_substream *substream)
 253 {
 254         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 255         struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 256         unsigned int domain_id = rtd->dai_link->id;
 257         struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
 258         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 259         struct snd_soc_dai *codec_dai;
 260         unsigned int active_rate;
 261         int ret = 0;
 262         int i;
 263
 264         mutex_lock(&priv->mutex);
 265
 266         domain->active++;
 267
 268         for (i = 0; i < J721E_AUDIO_DOMAIN_LAST; i++) {
 269                 active_rate = priv->audio_domains[i].rate;
 270                 if (active_rate)
 271                         break;
 272         }
 273
 274         if (active_rate)
 275                 ret = snd_pcm_hw_constraint_single(substream->runtime,
 276                                                    SNDRV_PCM_HW_PARAM_RATE,
 277                                                    active_rate);
 278         else
 279                 ret = snd_pcm_hw_rule_add(substream->runtime, 0,
 280                                           SNDRV_PCM_HW_PARAM_RATE,
 281                                           j721e_rule_rate, &priv->rate_range,
 282                                           SNDRV_PCM_HW_PARAM_RATE, -1);
 283
 284
 285         if (ret)
 286                 goto out;
 287
 288         /* Reset TDM slots to 32 */
 289         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
 290         if (ret && ret != -ENOTSUPP)
 291                 goto out;
 292
 293         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 294                 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
 295                 if (ret && ret != -ENOTSUPP)
 296                         goto out;
 297         }
 298
 299         if (ret == -ENOTSUPP)
 300                 ret = 0;
 301 out:
 302         if (ret)
 303                 domain->active--;
 304         mutex_unlock(&priv->mutex);
 305
 306         return ret;
 307 }
 308
 309 static int j721e_audio_hw_params(struct snd_pcm_substream *substream,
 310                                  struct snd_pcm_hw_params *params)
 311 {
 312         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 313         struct snd_soc_card *card = rtd->card;
 314         struct j721e_priv *priv = snd_soc_card_get_drvdata(card);
 315         unsigned int domain_id = rtd->dai_link->id;
 316         struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
 317         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 318         struct snd_soc_dai *codec_dai;
 319         unsigned int sysclk_rate;
 320         int slot_width = 32;
 321         int ret;
 322         int i;
 323
 324         mutex_lock(&priv->mutex);
 325
 326         if (domain->rate && domain->rate != params_rate(params)) {
 327                 ret = -EINVAL;
 328                 goto out;
 329         }
 330
 331         if (params_width(params) == 16)
 332                 slot_width = 16;
 333
 334         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, slot_width);
 335         if (ret && ret != -ENOTSUPP)
 336                 goto out;
 337
 338         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 339                 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2,
 340                                                slot_width);
 341                 if (ret && ret != -ENOTSUPP)
 342                         goto out;
 343         }
 344
 345         ret = j721e_configure_refclk(priv, domain_id, params_rate(params));
 346         if (ret)
 347                 goto out;
 348
 349         sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
 350         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 351                 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
 352                                              SND_SOC_CLOCK_IN);
 353                 if (ret && ret != -ENOTSUPP) {
 354                         dev_err(priv->dev,
 355                                 "codec set_sysclk failed for %u Hz\n",
 356                                 sysclk_rate);
 357                         goto out;
 358                 }
 359         }
 360
 361         ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
 362                                      sysclk_rate, SND_SOC_CLOCK_IN);
 363
 364         if (ret && ret != -ENOTSUPP) {
 365                 dev_err(priv->dev, "mcasp set_sysclk failed for %u Hz\n",
 366                         sysclk_rate);
 367         } else {
 368                 domain->rate = params_rate(params);
 369                 ret = 0;
 370         }
 371
 372 out:
 373         mutex_unlock(&priv->mutex);
 374         return ret;
 375 }
 376
 377 static void j721e_audio_shutdown(struct snd_pcm_substream *substream)
 378 {
 379         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 380         struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 381         unsigned int domain_id = rtd->dai_link->id;
 382         struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
 383
 384         mutex_lock(&priv->mutex);
 385
 386         domain->active--;
 387         if (!domain->active) {
 388                 domain->rate = 0;
 389                 domain->active_link = 0;
 390         }
 391
 392         mutex_unlock(&priv->mutex);
 393 }
 394
 395 static const struct snd_soc_ops j721e_audio_ops = {
 396         .startup = j721e_audio_startup,
 397         .hw_params = j721e_audio_hw_params,
 398         .shutdown = j721e_audio_shutdown,
 399 };
 400
 401 static int j721e_audio_init(struct snd_soc_pcm_runtime *rtd)
 402 {
 403         struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 404         unsigned int domain_id = rtd->dai_link->id;
 405         struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
 406         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 407         struct snd_soc_dai *codec_dai;
 408         unsigned int sysclk_rate;
 409         int i, ret;
 410
 411         /* Set up initial clock configuration */
 412         ret = j721e_configure_refclk(priv, domain_id, 48000);
 413         if (ret)
 414                 return ret;
 415
 416         sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
 417         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 418                 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
 419                                              SND_SOC_CLOCK_IN);
 420                 if (ret && ret != -ENOTSUPP)
 421                         return ret;
 422         }
 423
 424         ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
 425                                      sysclk_rate, SND_SOC_CLOCK_IN);
 426         if (ret && ret != -ENOTSUPP)
 427                 return ret;
 428
 429         /* Set initial tdm slots */
 430         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
 431         if (ret && ret != -ENOTSUPP)
 432                 return ret;
 433
 434         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 435                 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
 436                 if (ret && ret != -ENOTSUPP)
 437                         return ret;
 438         }
 439
 440         return 0;
 441 }
 442
 443 static int j721e_audio_init_ivi(struct snd_soc_pcm_runtime *rtd)
 444 {
 445         struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
 446
 447         snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_a_dapm_widgets,
 448                                   ARRAY_SIZE(j721e_ivi_codec_a_dapm_widgets));
 449         snd_soc_dapm_add_routes(dapm, j721e_codec_a_dapm_routes,
 450                                 ARRAY_SIZE(j721e_codec_a_dapm_routes));
 451         snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_b_dapm_widgets,
 452                                   ARRAY_SIZE(j721e_ivi_codec_b_dapm_widgets));
 453         snd_soc_dapm_add_routes(dapm, j721e_codec_b_dapm_routes,
 454                                 ARRAY_SIZE(j721e_codec_b_dapm_routes));
 455
 456         return j721e_audio_init(rtd);
 457 }
 458
 459 static int j721e_get_clocks(struct device *dev,
 460                             struct j721e_audio_clocks *clocks, char *prefix)
 461 {
 462         struct clk *parent;
 463         char *clk_name;
 464         int ret;
 465
 466         clocks->target = devm_clk_get(dev, prefix);
 467         if (IS_ERR(clocks->target)) {
 468                 ret = PTR_ERR(clocks->target);
 469                 if (ret != -EPROBE_DEFER)
 470                         dev_err(dev, "failed to acquire %s: %d\n",
 471                                 prefix, ret);
 472                 return ret;
 473         }
 474
 475         clk_name = kasprintf(GFP_KERNEL, "%s-48000", prefix);
 476         if (clk_name) {
 477                 parent = devm_clk_get(dev, clk_name);
 478                 kfree(clk_name);
 479                 if (IS_ERR(parent)) {
 480                         ret = PTR_ERR(parent);
 481                         if (ret == -EPROBE_DEFER)
 482                                 return ret;
 483
 484                         dev_dbg(dev, "no 48KHz parent for %s: %d\n", prefix, ret);
 485                         parent = NULL;
 486                 }
 487                 clocks->parent[J721E_CLK_PARENT_48000] = parent;
 488         } else {
 489                 return -ENOMEM;
 490         }
 491
 492         clk_name = kasprintf(GFP_KERNEL, "%s-44100", prefix);
 493         if (clk_name) {
 494                 parent = devm_clk_get(dev, clk_name);
 495                 kfree(clk_name);
 496                 if (IS_ERR(parent)) {
 497                         ret = PTR_ERR(parent);
 498                         if (ret == -EPROBE_DEFER)
 499                                 return ret;
 500
 501                         dev_dbg(dev, "no 44.1KHz parent for %s: %d\n", prefix, ret);
 502                         parent = NULL;
 503                 }
 504                 clocks->parent[J721E_CLK_PARENT_44100] = parent;
 505         } else {
 506                 return -ENOMEM;
 507         }
 508
 509         if (!clocks->parent[J721E_CLK_PARENT_44100] &&
 510             !clocks->parent[J721E_CLK_PARENT_48000]) {
 511                 dev_err(dev, "At least one parent clock is needed for %s\n",
 512                         prefix);
 513                 return -EINVAL;
 514         }
 515
 516         return 0;
 517 }
 518
 519 static const struct j721e_audio_match_data j721e_cpb_data = {
 520         .board_type = J721E_BOARD_CPB,
 521         .num_links = 2, /* CPB pcm3168a */
 522         .pll_rates = {
 523                 [J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
 524                 [J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
 525         },
 526 };
 527
 528 static const struct j721e_audio_match_data j721e_cpb_ivi_data = {
 529         .board_type = J721E_BOARD_CPB_IVI,
 530         .num_links = 4, /* CPB pcm3168a + 2x pcm3168a on IVI */
 531         .pll_rates = {
 532                 [J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
 533                 [J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
 534         },
 535 };
 536
 537 static const struct j721e_audio_match_data j7200_cpb_data = {
 538         .board_type = J721E_BOARD_CPB,
 539         .num_links = 2, /* CPB pcm3168a */
 540         .pll_rates = {
 541                 [J721E_CLK_PARENT_48000] = 2359296000u, /* PLL4 */
 542         },
 543 };
 544
 545 static const struct of_device_id j721e_audio_of_match[] = {
 546         {
 547                 .compatible = "ti,j721e-cpb-audio",
 548                 .data = &j721e_cpb_data,
 549         }, {
 550                 .compatible = "ti,j721e-cpb-ivi-audio",
 551                 .data = &j721e_cpb_ivi_data,
 552         }, {
 553                 .compatible = "ti,j7200-cpb-audio",
 554                 .data = &j7200_cpb_data,
 555         },
 556         { },
 557 };
 558 MODULE_DEVICE_TABLE(of, j721e_audio_of_match);
 559
 560 static int j721e_calculate_rate_range(struct j721e_priv *priv)
 561 {
 562         const struct j721e_audio_match_data *match_data = priv->match_data;
 563         struct j721e_audio_clocks *domain_clocks;
 564         unsigned int min_rate, max_rate, pll_rate;
 565         struct clk *pll;
 566
 567         domain_clocks = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].mcasp;
 568
 569         pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_44100]);
 570         if (IS_ERR_OR_NULL(pll)) {
 571                 priv->pll_rates[J721E_CLK_PARENT_44100] =
 572                                 match_data->pll_rates[J721E_CLK_PARENT_44100];
 573         } else {
 574                 priv->pll_rates[J721E_CLK_PARENT_44100] = clk_get_rate(pll);
 575                 clk_put(pll);
 576         }
 577
 578         pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_48000]);
 579         if (IS_ERR_OR_NULL(pll)) {
 580                 priv->pll_rates[J721E_CLK_PARENT_48000] =
 581                                 match_data->pll_rates[J721E_CLK_PARENT_48000];
 582         } else {
 583                 priv->pll_rates[J721E_CLK_PARENT_48000] = clk_get_rate(pll);
 584                 clk_put(pll);
 585         }
 586
 587         if (!priv->pll_rates[J721E_CLK_PARENT_44100] &&
 588             !priv->pll_rates[J721E_CLK_PARENT_48000]) {
 589                 dev_err(priv->dev, "At least one PLL is needed\n");
 590                 return -EINVAL;
 591         }
 592
 593         if (priv->pll_rates[J721E_CLK_PARENT_44100])
 594                 pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
 595         else
 596                 pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
 597
 598         min_rate = pll_rate / J721E_MAX_CLK_HSDIV;
 599         min_rate /= ratios_for_pcm3168a[ARRAY_SIZE(ratios_for_pcm3168a) - 1];
 600
 601         if (priv->pll_rates[J721E_CLK_PARENT_48000])
 602                 pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
 603         else
 604                 pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
 605
 606         if (pll_rate > PCM1368A_MAX_SYSCLK)
 607                 pll_rate = PCM1368A_MAX_SYSCLK;
 608
 609         max_rate = pll_rate / ratios_for_pcm3168a[0];
 610
 611         snd_interval_any(&priv->rate_range);
 612         priv->rate_range.min = min_rate;
 613         priv->rate_range.max = max_rate;
 614
 615         return 0;
 616 }
 617
 618 static int j721e_soc_probe_cpb(struct j721e_priv *priv, int *link_idx,
 619                                int *conf_idx)
 620 {
 621         struct device_node *node = priv->dev->of_node;
 622         struct snd_soc_dai_link_component *compnent;
 623         struct device_node *dai_node, *codec_node;
 624         struct j721e_audio_domain *domain;
 625         int comp_count, comp_idx;
 626         int ret;
 627
 628         dai_node = of_parse_phandle(node, "ti,cpb-mcasp", 0);
 629         if (!dai_node) {
 630                 dev_err(priv->dev, "CPB McASP node is not provided\n");
 631                 return -EINVAL;
 632         }
 633
 634         codec_node = of_parse_phandle(node, "ti,cpb-codec", 0);
 635         if (!codec_node) {
 636                 dev_err(priv->dev, "CPB codec node is not provided\n");
 637                 return -EINVAL;
 638         }
 639
 640         domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB];
 641         ret = j721e_get_clocks(priv->dev, &domain->codec, "cpb-codec-scki");
 642         if (ret)
 643                 return ret;
 644
 645         ret = j721e_get_clocks(priv->dev, &domain->mcasp, "cpb-mcasp-auxclk");
 646         if (ret)
 647                 return ret;
 648
 649         /*
 650          * Common Processor Board, two links
 651          * Link 1: McASP10 -> pcm3168a_1 DAC
 652          * Link 2: McASP10 <- pcm3168a_1 ADC
 653          */
 654         comp_count = 6;
 655         compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
 656                                 GFP_KERNEL);
 657         if (!compnent)
 658                 return -ENOMEM;
 659
 660         comp_idx = 0;
 661         priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
 662         priv->dai_links[*link_idx].num_cpus = 1;
 663         priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
 664         priv->dai_links[*link_idx].num_codecs = 1;
 665         priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
 666         priv->dai_links[*link_idx].num_platforms = 1;
 667
 668         priv->dai_links[*link_idx].name = "CPB PCM3168A Playback";
 669         priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
 670         priv->dai_links[*link_idx].cpus->of_node = dai_node;
 671         priv->dai_links[*link_idx].platforms->of_node = dai_node;
 672         priv->dai_links[*link_idx].codecs->of_node = codec_node;
 673         priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-dac";
 674         priv->dai_links[*link_idx].playback_only = 1;
 675         priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
 676         priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
 677         priv->dai_links[*link_idx].init = j721e_audio_init;
 678         priv->dai_links[*link_idx].ops = &j721e_audio_ops;
 679         (*link_idx)++;
 680
 681         priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
 682         priv->dai_links[*link_idx].num_cpus = 1;
 683         priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
 684         priv->dai_links[*link_idx].num_codecs = 1;
 685         priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
 686         priv->dai_links[*link_idx].num_platforms = 1;
 687
 688         priv->dai_links[*link_idx].name = "CPB PCM3168A Capture";
 689         priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
 690         priv->dai_links[*link_idx].cpus->of_node = dai_node;
 691         priv->dai_links[*link_idx].platforms->of_node = dai_node;
 692         priv->dai_links[*link_idx].codecs->of_node = codec_node;
 693         priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-adc";
 694         priv->dai_links[*link_idx].capture_only = 1;
 695         priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
 696         priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
 697         priv->dai_links[*link_idx].init = j721e_audio_init;
 698         priv->dai_links[*link_idx].ops = &j721e_audio_ops;
 699         (*link_idx)++;
 700
 701         priv->codec_conf[*conf_idx].dlc.of_node = codec_node;
 702         priv->codec_conf[*conf_idx].name_prefix = "codec-1";
 703         (*conf_idx)++;
 704         priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
 705         priv->codec_conf[*conf_idx].name_prefix = "McASP10";
 706         (*conf_idx)++;
 707
 708         return 0;
 709 }
 710
 711 static int j721e_soc_probe_ivi(struct j721e_priv *priv, int *link_idx,
 712                                int *conf_idx)
 713 {
 714         struct device_node *node = priv->dev->of_node;
 715         struct snd_soc_dai_link_component *compnent;
 716         struct device_node *dai_node, *codeca_node, *codecb_node;
 717         struct j721e_audio_domain *domain;
 718         int comp_count, comp_idx;
 719         int ret;
 720
 721         if (priv->match_data->board_type != J721E_BOARD_CPB_IVI)
 722                 return 0;
 723
 724         dai_node = of_parse_phandle(node, "ti,ivi-mcasp", 0);
 725         if (!dai_node) {
 726                 dev_err(priv->dev, "IVI McASP node is not provided\n");
 727                 return -EINVAL;
 728         }
 729
 730         codeca_node = of_parse_phandle(node, "ti,ivi-codec-a", 0);
 731         if (!codeca_node) {
 732                 dev_err(priv->dev, "IVI codec-a node is not provided\n");
 733                 return -EINVAL;
 734         }
 735
 736         codecb_node = of_parse_phandle(node, "ti,ivi-codec-b", 0);
 737         if (!codecb_node) {
 738                 dev_warn(priv->dev, "IVI codec-b node is not provided\n");
 739                 return 0;
 740         }
 741
 742         domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_IVI];
 743         ret = j721e_get_clocks(priv->dev, &domain->codec, "ivi-codec-scki");
 744         if (ret)
 745                 return ret;
 746
 747         ret = j721e_get_clocks(priv->dev, &domain->mcasp, "ivi-mcasp-auxclk");
 748         if (ret)
 749                 return ret;
 750
 751         /*
 752          * IVI extension, two links
 753          * Link 1: McASP0 -> pcm3168a_a DAC
 754          *                \> pcm3168a_b DAC
 755          * Link 2: McASP0 <- pcm3168a_a ADC
 756          *                 \ pcm3168a_b ADC
 757          */
 758         comp_count = 8;
 759         compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
 760                                 GFP_KERNEL);
 761         if (!compnent)
 762                 return -ENOMEM;
 763
 764         comp_idx = 0;
 765         priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
 766         priv->dai_links[*link_idx].num_cpus = 1;
 767         priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
 768         priv->dai_links[*link_idx].num_platforms = 1;
 769         priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
 770         priv->dai_links[*link_idx].num_codecs = 2;
 771         comp_idx += 2;
 772
 773         priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Playback";
 774         priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
 775         priv->dai_links[*link_idx].cpus->of_node = dai_node;
 776         priv->dai_links[*link_idx].platforms->of_node = dai_node;
 777         priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
 778         priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-dac";
 779         priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
 780         priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-dac";
 781         priv->dai_links[*link_idx].playback_only = 1;
 782         priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
 783         priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
 784         priv->dai_links[*link_idx].init = j721e_audio_init_ivi;
 785         priv->dai_links[*link_idx].ops = &j721e_audio_ops;
 786         (*link_idx)++;
 787
 788         priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
 789         priv->dai_links[*link_idx].num_cpus = 1;
 790         priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
 791         priv->dai_links[*link_idx].num_platforms = 1;
 792         priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
 793         priv->dai_links[*link_idx].num_codecs = 2;
 794
 795         priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Capture";
 796         priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
 797         priv->dai_links[*link_idx].cpus->of_node = dai_node;
 798         priv->dai_links[*link_idx].platforms->of_node = dai_node;
 799         priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
 800         priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-adc";
 801         priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
 802         priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-adc";
 803         priv->dai_links[*link_idx].capture_only = 1;
 804         priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
 805         priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
 806         priv->dai_links[*link_idx].init = j721e_audio_init;
 807         priv->dai_links[*link_idx].ops = &j721e_audio_ops;
 808         (*link_idx)++;
 809
 810         priv->codec_conf[*conf_idx].dlc.of_node = codeca_node;
 811         priv->codec_conf[*conf_idx].name_prefix = "codec-a";
 812         (*conf_idx)++;
 813
 814         priv->codec_conf[*conf_idx].dlc.of_node = codecb_node;
 815         priv->codec_conf[*conf_idx].name_prefix = "codec-b";
 816         (*conf_idx)++;
 817
 818         priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
 819         priv->codec_conf[*conf_idx].name_prefix = "McASP0";
 820         (*conf_idx)++;
 821
 822         return 0;
 823 }
 824
 825 static int j721e_soc_probe(struct platform_device *pdev)
 826 {
 827         struct device_node *node = pdev->dev.of_node;
 828         struct snd_soc_card *card;
 829         const struct of_device_id *match;
 830         struct j721e_priv *priv;
 831         int link_cnt, conf_cnt, ret, i;
 832
 833         if (!node) {
 834                 dev_err(&pdev->dev, "of node is missing.\n");
 835                 return -ENODEV;
 836         }
 837
 838         match = of_match_node(j721e_audio_of_match, node);
 839         if (!match) {
 840                 dev_err(&pdev->dev, "No compatible match found\n");
 841                 return -ENODEV;
 842         }
 843
 844         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 845         if (!priv)
 846                 return -ENOMEM;
 847
 848         priv->match_data = match->data;
 849
 850         priv->dai_links = devm_kcalloc(&pdev->dev, priv->match_data->num_links,
 851                                        sizeof(*priv->dai_links), GFP_KERNEL);
 852         if (!priv->dai_links)
 853                 return -ENOMEM;
 854
 855         for (i = 0; i < J721E_AUDIO_DOMAIN_LAST; i++)
 856                 priv->audio_domains[i].parent_clk_id = -1;
 857
 858         priv->dev = &pdev->dev;
 859         card = &priv->card;
 860         card->dev = &pdev->dev;
 861         card->owner = THIS_MODULE;
 862         card->dapm_widgets = j721e_cpb_dapm_widgets;
 863         card->num_dapm_widgets = ARRAY_SIZE(j721e_cpb_dapm_widgets);
 864         card->dapm_routes = j721e_cpb_dapm_routes;
 865         card->num_dapm_routes = ARRAY_SIZE(j721e_cpb_dapm_routes);
 866         card->fully_routed = 1;
 867
 868         if (snd_soc_of_parse_card_name(card, "model")) {
 869                 dev_err(&pdev->dev, "Card name is not provided\n");
 870                 return -ENODEV;
 871         }
 872
 873         link_cnt = 0;
 874         conf_cnt = 0;
 875         ret = j721e_soc_probe_cpb(priv, &link_cnt, &conf_cnt);
 876         if (ret)
 877                 return ret;
 878
 879         ret = j721e_soc_probe_ivi(priv, &link_cnt, &conf_cnt);
 880         if (ret)
 881                 return ret;
 882
 883         card->dai_link = priv->dai_links;
 884         card->num_links = link_cnt;
 885
 886         card->codec_conf = priv->codec_conf;
 887         card->num_configs = conf_cnt;
 888
 889         ret = j721e_calculate_rate_range(priv);
 890         if (ret)
 891                 return ret;
 892
 893         snd_soc_card_set_drvdata(card, priv);
 894
 895         mutex_init(&priv->mutex);
 896         ret = devm_snd_soc_register_card(&pdev->dev, card);
 897         if (ret)
 898                 dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
 899                         ret);
 900
 901         return ret;
 902 }
 903
 904 static struct platform_driver j721e_soc_driver = {
 905         .driver = {
 906                 .name = "j721e-audio",
 907                 .pm = &snd_soc_pm_ops,
 908                 .of_match_table = j721e_audio_of_match,
 909         },
 910         .probe = j721e_soc_probe,
 911 };
 912
 913 module_platform_driver(j721e_soc_driver);
 914
 915 MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
 916 MODULE_DESCRIPTION("ASoC machine driver for j721e Common Processor Board");
 917 MODULE_LICENSE("GPL v2");