sound/soc/fsl/fsl-asoc-card.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Freescale Generic ASoC Sound Card driver with ASRC
   4 //
   5 // Copyright (C) 2014 Freescale Semiconductor, Inc.
   6 //
   7 // Author: Nicolin Chen <nicoleotsuka@gmail.com>
   8
   9 #include <linux/clk.h>
  10 #include <linux/i2c.h>
  11 #include <linux/module.h>
  12 #include <linux/of_platform.h>
  13 #if IS_ENABLED(CONFIG_SND_AC97_CODEC)
  14 #include <sound/ac97_codec.h>
  15 #endif
  16 #include <sound/pcm_params.h>
  17 #include <sound/soc.h>
  18
  19 #include "fsl_esai.h"
  20 #include "fsl_sai.h"
  21 #include "imx-audmux.h"
  22
  23 #include "../codecs/sgtl5000.h"
  24 #include "../codecs/wm8962.h"
  25 #include "../codecs/wm8960.h"
  26
  27 #define CS427x_SYSCLK_MCLK 0
  28
  29 #define RX 0
  30 #define TX 1
  31
  32 /* Default DAI format without Master and Slave flag */
  33 #define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
  34
  35 /**
  36  * CODEC private data
  37  *
  38  * @mclk_freq: Clock rate of MCLK
  39  * @mclk_id: MCLK (or main clock) id for set_sysclk()
  40  * @fll_id: FLL (or secordary clock) id for set_sysclk()
  41  * @pll_id: PLL id for set_pll()
  42  */
  43 struct codec_priv {
  44         unsigned long mclk_freq;
  45         u32 mclk_id;
  46         u32 fll_id;
  47         u32 pll_id;
  48 };
  49
  50 /**
  51  * CPU private data
  52  *
  53  * @sysclk_freq[2]: SYSCLK rates for set_sysclk()
  54  * @sysclk_dir[2]: SYSCLK directions for set_sysclk()
  55  * @sysclk_id[2]: SYSCLK ids for set_sysclk()
  56  * @slot_width: Slot width of each frame
  57  *
  58  * Note: [1] for tx and [0] for rx
  59  */
  60 struct cpu_priv {
  61         unsigned long sysclk_freq[2];
  62         u32 sysclk_dir[2];
  63         u32 sysclk_id[2];
  64         u32 slot_width;
  65 };
  66
  67 /**
  68  * Freescale Generic ASOC card private data
  69  *
  70  * @dai_link[3]: DAI link structure including normal one and DPCM link
  71  * @pdev: platform device pointer
  72  * @codec_priv: CODEC private data
  73  * @cpu_priv: CPU private data
  74  * @card: ASoC card structure
  75  * @sample_rate: Current sample rate
  76  * @sample_format: Current sample format
  77  * @asrc_rate: ASRC sample rate used by Back-Ends
  78  * @asrc_format: ASRC sample format used by Back-Ends
  79  * @dai_fmt: DAI format between CPU and CODEC
  80  * @name: Card name
  81  */
  82
  83 struct fsl_asoc_card_priv {
  84         struct snd_soc_dai_link dai_link[3];
  85         struct platform_device *pdev;
  86         struct codec_priv codec_priv;
  87         struct cpu_priv cpu_priv;
  88         struct snd_soc_card card;
  89         u32 sample_rate;
  90         snd_pcm_format_t sample_format;
  91         u32 asrc_rate;
  92         snd_pcm_format_t asrc_format;
  93         u32 dai_fmt;
  94         char name[32];
  95 };
  96
  97 /**
  98  * This dapm route map exsits for DPCM link only.
  99  * The other routes shall go through Device Tree.
 100  *
 101  * Note: keep all ASRC routes in the second half
 102  *       to drop them easily for non-ASRC cases.
 103  */
 104 static const struct snd_soc_dapm_route audio_map[] = {
 105         /* 1st half -- Normal DAPM routes */
 106         {"Playback",  NULL, "CPU-Playback"},
 107         {"CPU-Capture",  NULL, "Capture"},
 108         /* 2nd half -- ASRC DAPM routes */
 109         {"CPU-Playback",  NULL, "ASRC-Playback"},
 110         {"ASRC-Capture",  NULL, "CPU-Capture"},
 111 };
 112
 113 static const struct snd_soc_dapm_route audio_map_ac97[] = {
 114         /* 1st half -- Normal DAPM routes */
 115         {"Playback",  NULL, "AC97 Playback"},
 116         {"AC97 Capture",  NULL, "Capture"},
 117         /* 2nd half -- ASRC DAPM routes */
 118         {"AC97 Playback",  NULL, "ASRC-Playback"},
 119         {"ASRC-Capture",  NULL, "AC97 Capture"},
 120 };
 121
 122 /* Add all possible widgets into here without being redundant */
 123 static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
 124         SND_SOC_DAPM_LINE("Line Out Jack", NULL),
 125         SND_SOC_DAPM_LINE("Line In Jack", NULL),
 126         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 127         SND_SOC_DAPM_SPK("Ext Spk", NULL),
 128         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 129         SND_SOC_DAPM_MIC("AMIC", NULL),
 130         SND_SOC_DAPM_MIC("DMIC", NULL),
 131 };
 132
 133 static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
 134 {
 135         return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
 136 }
 137
 138 static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
 139                                    struct snd_pcm_hw_params *params)
 140 {
 141         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 142         struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 143         bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 144         struct cpu_priv *cpu_priv = &priv->cpu_priv;
 145         struct device *dev = rtd->card->dev;
 146         int ret;
 147
 148         priv->sample_rate = params_rate(params);
 149         priv->sample_format = params_format(params);
 150
 151         /*
 152          * If codec-dai is DAI Master and all configurations are already in the
 153          * set_bias_level(), bypass the remaining settings in hw_params().
 154          * Note: (dai_fmt & CBM_CFM) includes CBM_CFM and CBM_CFS.
 155          */
 156         if ((priv->card.set_bias_level &&
 157              priv->dai_fmt & SND_SOC_DAIFMT_CBM_CFM) ||
 158             fsl_asoc_card_is_ac97(priv))
 159                 return 0;
 160
 161         /* Specific configurations of DAIs starts from here */
 162         ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
 163                                      cpu_priv->sysclk_freq[tx],
 164                                      cpu_priv->sysclk_dir[tx]);
 165         if (ret && ret != -ENOTSUPP) {
 166                 dev_err(dev, "failed to set sysclk for cpu dai\n");
 167                 return ret;
 168         }
 169
 170         if (cpu_priv->slot_width) {
 171                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2,
 172                                                cpu_priv->slot_width);
 173                 if (ret && ret != -ENOTSUPP) {
 174                         dev_err(dev, "failed to set TDM slot for cpu dai\n");
 175                         return ret;
 176                 }
 177         }
 178
 179         return 0;
 180 }
 181
 182 static const struct snd_soc_ops fsl_asoc_card_ops = {
 183         .hw_params = fsl_asoc_card_hw_params,
 184 };
 185
 186 static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 187                               struct snd_pcm_hw_params *params)
 188 {
 189         struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 190         struct snd_interval *rate;
 191         struct snd_mask *mask;
 192
 193         rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 194         rate->max = rate->min = priv->asrc_rate;
 195
 196         mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 197         snd_mask_none(mask);
 198         snd_mask_set_format(mask, priv->asrc_format);
 199
 200         return 0;
 201 }
 202
 203 static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
 204         /* Default ASoC DAI Link*/
 205         {
 206                 .name = "HiFi",
 207                 .stream_name = "HiFi",
 208                 .ops = &fsl_asoc_card_ops,
 209         },
 210         /* DPCM Link between Front-End and Back-End (Optional) */
 211         {
 212                 .name = "HiFi-ASRC-FE",
 213                 .stream_name = "HiFi-ASRC-FE",
 214                 .codec_name = "snd-soc-dummy",
 215                 .codec_dai_name = "snd-soc-dummy-dai",
 216                 .dpcm_playback = 1,
 217                 .dpcm_capture = 1,
 218                 .dynamic = 1,
 219         },
 220         {
 221                 .name = "HiFi-ASRC-BE",
 222                 .stream_name = "HiFi-ASRC-BE",
 223                 .platform_name = "snd-soc-dummy",
 224                 .be_hw_params_fixup = be_hw_params_fixup,
 225                 .ops = &fsl_asoc_card_ops,
 226                 .dpcm_playback = 1,
 227                 .dpcm_capture = 1,
 228                 .no_pcm = 1,
 229         },
 230 };
 231
 232 static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
 233                                         struct snd_soc_dapm_context *dapm,
 234                                         enum snd_soc_bias_level level)
 235 {
 236         struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
 237         struct snd_soc_pcm_runtime *rtd;
 238         struct snd_soc_dai *codec_dai;
 239         struct codec_priv *codec_priv = &priv->codec_priv;
 240         struct device *dev = card->dev;
 241         unsigned int pll_out;
 242         int ret;
 243
 244         rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
 245         codec_dai = rtd->codec_dai;
 246         if (dapm->dev != codec_dai->dev)
 247                 return 0;
 248
 249         switch (level) {
 250         case SND_SOC_BIAS_PREPARE:
 251                 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
 252                         break;
 253
 254                 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
 255                         pll_out = priv->sample_rate * 384;
 256                 else
 257                         pll_out = priv->sample_rate * 256;
 258
 259                 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
 260                                           codec_priv->mclk_id,
 261                                           codec_priv->mclk_freq, pll_out);
 262                 if (ret) {
 263                         dev_err(dev, "failed to start FLL: %d\n", ret);
 264                         return ret;
 265                 }
 266
 267                 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
 268                                              pll_out, SND_SOC_CLOCK_IN);
 269                 if (ret && ret != -ENOTSUPP) {
 270                         dev_err(dev, "failed to set SYSCLK: %d\n", ret);
 271                         return ret;
 272                 }
 273                 break;
 274
 275         case SND_SOC_BIAS_STANDBY:
 276                 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
 277                         break;
 278
 279                 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
 280                                              codec_priv->mclk_freq,
 281                                              SND_SOC_CLOCK_IN);
 282                 if (ret && ret != -ENOTSUPP) {
 283                         dev_err(dev, "failed to switch away from FLL: %d\n", ret);
 284                         return ret;
 285                 }
 286
 287                 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
 288                 if (ret) {
 289                         dev_err(dev, "failed to stop FLL: %d\n", ret);
 290                         return ret;
 291                 }
 292                 break;
 293
 294         default:
 295                 break;
 296         }
 297
 298         return 0;
 299 }
 300
 301 static int fsl_asoc_card_audmux_init(struct device_node *np,
 302                                      struct fsl_asoc_card_priv *priv)
 303 {
 304         struct device *dev = &priv->pdev->dev;
 305         u32 int_ptcr = 0, ext_ptcr = 0;
 306         int int_port, ext_port;
 307         int ret;
 308
 309         ret = of_property_read_u32(np, "mux-int-port", &int_port);
 310         if (ret) {
 311                 dev_err(dev, "mux-int-port missing or invalid\n");
 312                 return ret;
 313         }
 314         ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
 315         if (ret) {
 316                 dev_err(dev, "mux-ext-port missing or invalid\n");
 317                 return ret;
 318         }
 319
 320         /*
 321          * The port numbering in the hardware manual starts at 1, while
 322          * the AUDMUX API expects it starts at 0.
 323          */
 324         int_port--;
 325         ext_port--;
 326
 327         /*
 328          * Use asynchronous mode (6 wires) for all cases except AC97.
 329          * If only 4 wires are needed, just set SSI into
 330          * synchronous mode and enable 4 PADs in IOMUX.
 331          */
 332         switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 333         case SND_SOC_DAIFMT_CBM_CFM:
 334                 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
 335                            IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
 336                            IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
 337                            IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
 338                            IMX_AUDMUX_V2_PTCR_RFSDIR |
 339                            IMX_AUDMUX_V2_PTCR_RCLKDIR |
 340                            IMX_AUDMUX_V2_PTCR_TFSDIR |
 341                            IMX_AUDMUX_V2_PTCR_TCLKDIR;
 342                 break;
 343         case SND_SOC_DAIFMT_CBM_CFS:
 344                 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
 345                            IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
 346                            IMX_AUDMUX_V2_PTCR_RCLKDIR |
 347                            IMX_AUDMUX_V2_PTCR_TCLKDIR;
 348                 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
 349                            IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
 350                            IMX_AUDMUX_V2_PTCR_RFSDIR |
 351                            IMX_AUDMUX_V2_PTCR_TFSDIR;
 352                 break;
 353         case SND_SOC_DAIFMT_CBS_CFM:
 354                 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
 355                            IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
 356                            IMX_AUDMUX_V2_PTCR_RFSDIR |
 357                            IMX_AUDMUX_V2_PTCR_TFSDIR;
 358                 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
 359                            IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
 360                            IMX_AUDMUX_V2_PTCR_RCLKDIR |
 361                            IMX_AUDMUX_V2_PTCR_TCLKDIR;
 362                 break;
 363         case SND_SOC_DAIFMT_CBS_CFS:
 364                 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
 365                            IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
 366                            IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
 367                            IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
 368                            IMX_AUDMUX_V2_PTCR_RFSDIR |
 369                            IMX_AUDMUX_V2_PTCR_RCLKDIR |
 370                            IMX_AUDMUX_V2_PTCR_TFSDIR |
 371                            IMX_AUDMUX_V2_PTCR_TCLKDIR;
 372                 break;
 373         default:
 374                 if (!fsl_asoc_card_is_ac97(priv))
 375                         return -EINVAL;
 376         }
 377
 378         if (fsl_asoc_card_is_ac97(priv)) {
 379                 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
 380                            IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
 381                            IMX_AUDMUX_V2_PTCR_TCLKDIR;
 382                 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
 383                            IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
 384                            IMX_AUDMUX_V2_PTCR_TFSDIR;
 385         }
 386
 387         /* Asynchronous mode can not be set along with RCLKDIR */
 388         if (!fsl_asoc_card_is_ac97(priv)) {
 389                 unsigned int pdcr =
 390                                 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
 391
 392                 ret = imx_audmux_v2_configure_port(int_port, 0,
 393                                                    pdcr);
 394                 if (ret) {
 395                         dev_err(dev, "audmux internal port setup failed\n");
 396                         return ret;
 397                 }
 398         }
 399
 400         ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
 401                                            IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
 402         if (ret) {
 403                 dev_err(dev, "audmux internal port setup failed\n");
 404                 return ret;
 405         }
 406
 407         if (!fsl_asoc_card_is_ac97(priv)) {
 408                 unsigned int pdcr =
 409                                 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
 410
 411                 ret = imx_audmux_v2_configure_port(ext_port, 0,
 412                                                    pdcr);
 413                 if (ret) {
 414                         dev_err(dev, "audmux external port setup failed\n");
 415                         return ret;
 416                 }
 417         }
 418
 419         ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
 420                                            IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
 421         if (ret) {
 422                 dev_err(dev, "audmux external port setup failed\n");
 423                 return ret;
 424         }
 425
 426         return 0;
 427 }
 428
 429 static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
 430 {
 431         struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
 432         struct snd_soc_pcm_runtime *rtd = list_first_entry(
 433                         &card->rtd_list, struct snd_soc_pcm_runtime, list);
 434         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 435         struct codec_priv *codec_priv = &priv->codec_priv;
 436         struct device *dev = card->dev;
 437         int ret;
 438
 439         if (fsl_asoc_card_is_ac97(priv)) {
 440 #if IS_ENABLED(CONFIG_SND_AC97_CODEC)
 441                 struct snd_soc_component *component = rtd->codec_dai->component;
 442                 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 443
 444                 /*
 445                  * Use slots 3/4 for S/PDIF so SSI won't try to enable
 446                  * other slots and send some samples there
 447                  * due to SLOTREQ bits for S/PDIF received from codec
 448                  */
 449                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
 450                                      AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
 451 #endif
 452
 453                 return 0;
 454         }
 455
 456         ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
 457                                      codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
 458         if (ret && ret != -ENOTSUPP) {
 459                 dev_err(dev, "failed to set sysclk in %s\n", __func__);
 460                 return ret;
 461         }
 462
 463         return 0;
 464 }
 465
 466 static int fsl_asoc_card_probe(struct platform_device *pdev)
 467 {
 468         struct device_node *cpu_np, *codec_np, *asrc_np;
 469         struct device_node *np = pdev->dev.of_node;
 470         struct platform_device *asrc_pdev = NULL;
 471         struct platform_device *cpu_pdev;
 472         struct fsl_asoc_card_priv *priv;
 473         struct i2c_client *codec_dev;
 474         const char *codec_dai_name;
 475         u32 width;
 476         int ret;
 477
 478         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 479         if (!priv)
 480                 return -ENOMEM;
 481
 482         cpu_np = of_parse_phandle(np, "audio-cpu", 0);
 483         /* Give a chance to old DT binding */
 484         if (!cpu_np)
 485                 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
 486         if (!cpu_np) {
 487                 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
 488                 ret = -EINVAL;
 489                 goto fail;
 490         }
 491
 492         cpu_pdev = of_find_device_by_node(cpu_np);
 493         if (!cpu_pdev) {
 494                 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
 495                 ret = -EINVAL;
 496                 goto fail;
 497         }
 498
 499         codec_np = of_parse_phandle(np, "audio-codec", 0);
 500         if (codec_np)
 501                 codec_dev = of_find_i2c_device_by_node(codec_np);
 502         else
 503                 codec_dev = NULL;
 504
 505         asrc_np = of_parse_phandle(np, "audio-asrc", 0);
 506         if (asrc_np)
 507                 asrc_pdev = of_find_device_by_node(asrc_np);
 508
 509         /* Get the MCLK rate only, and leave it controlled by CODEC drivers */
 510         if (codec_dev) {
 511                 struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
 512
 513                 if (!IS_ERR(codec_clk)) {
 514                         priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
 515                         clk_put(codec_clk);
 516                 }
 517         }
 518
 519         /* Default sample rate and format, will be updated in hw_params() */
 520         priv->sample_rate = 44100;
 521         priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
 522
 523         /* Assign a default DAI format, and allow each card to overwrite it */
 524         priv->dai_fmt = DAI_FMT_BASE;
 525
 526         /* Diversify the card configurations */
 527         if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
 528                 codec_dai_name = "cs42888";
 529                 priv->card.set_bias_level = NULL;
 530                 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
 531                 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
 532                 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
 533                 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
 534                 priv->cpu_priv.slot_width = 32;
 535                 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
 536         } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
 537                 codec_dai_name = "cs4271-hifi";
 538                 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
 539                 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
 540         } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
 541                 codec_dai_name = "sgtl5000";
 542                 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
 543                 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
 544         } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
 545                 codec_dai_name = "wm8962";
 546                 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
 547                 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
 548                 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
 549                 priv->codec_priv.pll_id = WM8962_FLL;
 550                 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
 551         } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
 552                 codec_dai_name = "wm8960-hifi";
 553                 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
 554                 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
 555                 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
 556                 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
 557         } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
 558                 codec_dai_name = "ac97-hifi";
 559                 priv->card.set_bias_level = NULL;
 560                 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
 561         } else {
 562                 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
 563                 ret = -EINVAL;
 564                 goto asrc_fail;
 565         }
 566
 567         if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
 568                 dev_err(&pdev->dev, "failed to find codec device\n");
 569                 ret = -EINVAL;
 570                 goto asrc_fail;
 571         }
 572
 573         /* Common settings for corresponding Freescale CPU DAI driver */
 574         if (strstr(cpu_np->name, "ssi")) {
 575                 /* Only SSI needs to configure AUDMUX */
 576                 ret = fsl_asoc_card_audmux_init(np, priv);
 577                 if (ret) {
 578                         dev_err(&pdev->dev, "failed to init audmux\n");
 579                         goto asrc_fail;
 580                 }
 581         } else if (strstr(cpu_np->name, "esai")) {
 582                 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
 583                 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
 584         } else if (strstr(cpu_np->name, "sai")) {
 585                 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
 586                 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
 587         }
 588
 589         snprintf(priv->name, sizeof(priv->name), "%s-audio",
 590                  fsl_asoc_card_is_ac97(priv) ? "ac97" :
 591                  codec_dev->name);
 592
 593         /* Initialize sound card */
 594         priv->pdev = pdev;
 595         priv->card.dev = &pdev->dev;
 596         priv->card.name = priv->name;
 597         priv->card.dai_link = priv->dai_link;
 598         priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
 599                                  audio_map_ac97 : audio_map;
 600         priv->card.late_probe = fsl_asoc_card_late_probe;
 601         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
 602         priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
 603         priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
 604
 605         /* Drop the second half of DAPM routes -- ASRC */
 606         if (!asrc_pdev)
 607                 priv->card.num_dapm_routes /= 2;
 608
 609         memcpy(priv->dai_link, fsl_asoc_card_dai,
 610                sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
 611
 612         ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
 613         if (ret) {
 614                 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
 615                 goto asrc_fail;
 616         }
 617
 618         /* Normal DAI Link */
 619         priv->dai_link[0].cpu_of_node = cpu_np;
 620         priv->dai_link[0].codec_dai_name = codec_dai_name;
 621
 622         if (!fsl_asoc_card_is_ac97(priv))
 623                 priv->dai_link[0].codec_of_node = codec_np;
 624         else {
 625                 u32 idx;
 626
 627                 ret = of_property_read_u32(cpu_np, "cell-index", &idx);
 628                 if (ret) {
 629                         dev_err(&pdev->dev,
 630                                 "cannot get CPU index property\n");
 631                         goto asrc_fail;
 632                 }
 633
 634                 priv->dai_link[0].codec_name =
 635                                 devm_kasprintf(&pdev->dev, GFP_KERNEL,
 636                                                "ac97-codec.%u",
 637                                                (unsigned int)idx);
 638                 if (!priv->dai_link[0].codec_name) {
 639                         ret = -ENOMEM;
 640                         goto asrc_fail;
 641                 }
 642         }
 643
 644         priv->dai_link[0].platform_of_node = cpu_np;
 645         priv->dai_link[0].dai_fmt = priv->dai_fmt;
 646         priv->card.num_links = 1;
 647
 648         if (asrc_pdev) {
 649                 /* DPCM DAI Links only if ASRC exsits */
 650                 priv->dai_link[1].cpu_of_node = asrc_np;
 651                 priv->dai_link[1].platform_of_node = asrc_np;
 652                 priv->dai_link[2].codec_dai_name = codec_dai_name;
 653                 priv->dai_link[2].codec_of_node = codec_np;
 654                 priv->dai_link[2].codec_name =
 655                                 priv->dai_link[0].codec_name;
 656                 priv->dai_link[2].cpu_of_node = cpu_np;
 657                 priv->dai_link[2].dai_fmt = priv->dai_fmt;
 658                 priv->card.num_links = 3;
 659
 660                 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
 661                                            &priv->asrc_rate);
 662                 if (ret) {
 663                         dev_err(&pdev->dev, "failed to get output rate\n");
 664                         ret = -EINVAL;
 665                         goto asrc_fail;
 666                 }
 667
 668                 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
 669                 if (ret) {
 670                         dev_err(&pdev->dev, "failed to get output rate\n");
 671                         ret = -EINVAL;
 672                         goto asrc_fail;
 673                 }
 674
 675                 if (width == 24)
 676                         priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
 677                 else
 678                         priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
 679         }
 680
 681         /* Finish card registering */
 682         platform_set_drvdata(pdev, priv);
 683         snd_soc_card_set_drvdata(&priv->card, priv);
 684
 685         ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
 686         if (ret && ret != -EPROBE_DEFER)
 687                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
 688
 689 asrc_fail:
 690         of_node_put(asrc_np);
 691         of_node_put(codec_np);
 692 fail:
 693         of_node_put(cpu_np);
 694
 695         return ret;
 696 }
 697
 698 static const struct of_device_id fsl_asoc_card_dt_ids[] = {
 699         { .compatible = "fsl,imx-audio-ac97", },
 700         { .compatible = "fsl,imx-audio-cs42888", },
 701         { .compatible = "fsl,imx-audio-cs427x", },
 702         { .compatible = "fsl,imx-audio-sgtl5000", },
 703         { .compatible = "fsl,imx-audio-wm8962", },
 704         { .compatible = "fsl,imx-audio-wm8960", },
 705         {}
 706 };
 707 MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
 708
 709 static struct platform_driver fsl_asoc_card_driver = {
 710         .probe = fsl_asoc_card_probe,
 711         .driver = {
 712                 .name = "fsl-asoc-card",
 713                 .pm = &snd_soc_pm_ops,
 714                 .of_match_table = fsl_asoc_card_dt_ids,
 715         },
 716 };
 717 module_platform_driver(fsl_asoc_card_driver);
 718
 719 MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
 720 MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
 721 MODULE_ALIAS("platform:fsl-asoc-card");
 722 MODULE_LICENSE("GPL");