sound/soc/qcom/sdm845.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #include <linux/module.h>
   7 #include <linux/platform_device.h>
   8 #include <linux/of_device.h>
   9 #include <sound/core.h>
  10 #include <sound/pcm.h>
  11 #include <sound/pcm_params.h>
  12 #include <sound/jack.h>
  13 #include <sound/soc.h>
  14 #include <linux/soundwire/sdw.h>
  15 #include <uapi/linux/input-event-codes.h>
  16 #include "common.h"
  17 #include "qdsp6/q6afe.h"
  18 #include "../codecs/rt5663.h"
  19
  20 #define DRIVER_NAME     "sdm845"
  21 #define DEFAULT_SAMPLE_RATE_48K         48000
  22 #define DEFAULT_MCLK_RATE               24576000
  23 #define TDM_BCLK_RATE           6144000
  24 #define MI2S_BCLK_RATE          1536000
  25 #define LEFT_SPK_TDM_TX_MASK    0x30
  26 #define RIGHT_SPK_TDM_TX_MASK   0xC0
  27 #define SPK_TDM_RX_MASK         0x03
  28 #define NUM_TDM_SLOTS           8
  29 #define SLIM_MAX_TX_PORTS 16
  30 #define SLIM_MAX_RX_PORTS 13
  31 #define WCD934X_DEFAULT_MCLK_RATE       9600000
  32
  33 struct sdm845_snd_data {
  34         struct snd_soc_jack jack;
  35         bool jack_setup;
  36         bool stream_prepared[AFE_PORT_MAX];
  37         struct snd_soc_card *card;
  38         uint32_t pri_mi2s_clk_count;
  39         uint32_t sec_mi2s_clk_count;
  40         uint32_t quat_tdm_clk_count;
  41         struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
  42 };
  43
  44 static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
  45
  46 static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
  47                                      struct snd_pcm_hw_params *params)
  48 {
  49         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  50         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
  51         struct snd_soc_dai *codec_dai;
  52         struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
  53         u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
  54         struct sdw_stream_runtime *sruntime;
  55         u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
  56         int ret = 0, i;
  57
  58         for_each_rtd_codec_dais(rtd, i, codec_dai) {
  59                 sruntime = snd_soc_dai_get_sdw_stream(codec_dai,
  60                                                       substream->stream);
  61                 if (sruntime != ERR_PTR(-ENOTSUPP))
  62                         pdata->sruntime[cpu_dai->id] = sruntime;
  63
  64                 ret = snd_soc_dai_get_channel_map(codec_dai,
  65                                 &tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
  66
  67                 if (ret != 0 && ret != -ENOTSUPP) {
  68                         pr_err("failed to get codec chan map, err:%d\n", ret);
  69                         return ret;
  70                 } else if (ret == -ENOTSUPP) {
  71                         /* Ignore unsupported */
  72                         continue;
  73                 }
  74
  75                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
  76                         ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
  77                                                           rx_ch_cnt, rx_ch);
  78                 else
  79                         ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt,
  80                                                           tx_ch, 0, NULL);
  81         }
  82
  83         return 0;
  84 }
  85
  86 static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
  87                                         struct snd_pcm_hw_params *params)
  88 {
  89         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  90         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
  91         struct snd_soc_dai *codec_dai;
  92         int ret = 0, j;
  93         int channels, slot_width;
  94
  95         switch (params_format(params)) {
  96         case SNDRV_PCM_FORMAT_S16_LE:
  97                 slot_width = 16;
  98                 break;
  99         default:
 100                 dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
 101                                 __func__, params_format(params));
 102                 return -EINVAL;
 103         }
 104
 105         channels = params_channels(params);
 106         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 107                 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
 108                                 8, slot_width);
 109                 if (ret < 0) {
 110                         dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
 111                                         __func__, ret);
 112                         goto end;
 113                 }
 114
 115                 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
 116                                 channels, tdm_slot_offset);
 117                 if (ret < 0) {
 118                         dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
 119                                         __func__, ret);
 120                         goto end;
 121                 }
 122         } else {
 123                 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
 124                                 8, slot_width);
 125                 if (ret < 0) {
 126                         dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
 127                                         __func__, ret);
 128                         goto end;
 129                 }
 130
 131                 ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
 132                                 tdm_slot_offset, 0, NULL);
 133                 if (ret < 0) {
 134                         dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
 135                                         __func__, ret);
 136                         goto end;
 137                 }
 138         }
 139
 140         for_each_rtd_codec_dais(rtd, j, codec_dai) {
 141
 142                 if (!strcmp(codec_dai->component->name_prefix, "Left")) {
 143                         ret = snd_soc_dai_set_tdm_slot(
 144                                         codec_dai, LEFT_SPK_TDM_TX_MASK,
 145                                         SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
 146                                         slot_width);
 147                         if (ret < 0) {
 148                                 dev_err(rtd->dev,
 149                                         "DEV0 TDM slot err:%d\n", ret);
 150                                 return ret;
 151                         }
 152                 }
 153
 154                 if (!strcmp(codec_dai->component->name_prefix, "Right")) {
 155                         ret = snd_soc_dai_set_tdm_slot(
 156                                         codec_dai, RIGHT_SPK_TDM_TX_MASK,
 157                                         SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
 158                                         slot_width);
 159                         if (ret < 0) {
 160                                 dev_err(rtd->dev,
 161                                         "DEV1 TDM slot err:%d\n", ret);
 162                                 return ret;
 163                         }
 164                 }
 165         }
 166
 167 end:
 168         return ret;
 169 }
 170
 171 static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
 172                                         struct snd_pcm_hw_params *params)
 173 {
 174         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 175         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 176         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 177         int ret = 0;
 178
 179         switch (cpu_dai->id) {
 180         case PRIMARY_MI2S_RX:
 181         case PRIMARY_MI2S_TX:
 182                 /*
 183                  * Use ASRC for internal clocks, as PLL rate isn't multiple
 184                  * of BCLK.
 185                  */
 186                 rt5663_sel_asrc_clk_src(
 187                         codec_dai->component,
 188                         RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
 189                         RT5663_CLK_SEL_I2S1_ASRC);
 190                 ret = snd_soc_dai_set_sysclk(
 191                         codec_dai, RT5663_SCLK_S_MCLK, DEFAULT_MCLK_RATE,
 192                         SND_SOC_CLOCK_IN);
 193                 if (ret < 0)
 194                         dev_err(rtd->dev,
 195                                 "snd_soc_dai_set_sysclk err = %d\n", ret);
 196                 break;
 197         case QUATERNARY_TDM_RX_0:
 198         case QUATERNARY_TDM_TX_0:
 199                 ret = sdm845_tdm_snd_hw_params(substream, params);
 200                 break;
 201         case SLIMBUS_0_RX...SLIMBUS_6_TX:
 202                 ret = sdm845_slim_snd_hw_params(substream, params);
 203                 break;
 204         case QUATERNARY_MI2S_RX:
 205                 break;
 206         default:
 207                 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
 208                 break;
 209         }
 210         return ret;
 211 }
 212
 213 static void sdm845_jack_free(struct snd_jack *jack)
 214 {
 215         struct snd_soc_component *component = jack->private_data;
 216
 217         snd_soc_component_set_jack(component, NULL, NULL);
 218 }
 219
 220 static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
 221 {
 222         struct snd_soc_component *component;
 223         struct snd_soc_card *card = rtd->card;
 224         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 225         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 226         struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
 227         struct snd_jack *jack;
 228         /*
 229          * Codec SLIMBUS configuration
 230          * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
 231          * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
 232          * TX14, TX15, TX16
 233          */
 234         unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
 235                                         150, 151, 152, 153, 154, 155, 156};
 236         unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
 237                                             134, 135, 136, 137, 138, 139,
 238                                             140, 141, 142, 143};
 239         int rval, i;
 240
 241
 242         if (!pdata->jack_setup) {
 243                 rval = snd_soc_card_jack_new(card, "Headset Jack",
 244                                 SND_JACK_HEADSET |
 245                                 SND_JACK_HEADPHONE |
 246                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 247                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
 248                                 &pdata->jack, NULL, 0);
 249
 250                 if (rval < 0) {
 251                         dev_err(card->dev, "Unable to add Headphone Jack\n");
 252                         return rval;
 253                 }
 254
 255                 jack = pdata->jack.jack;
 256
 257                 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 258                 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 259                 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 260                 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 261                 pdata->jack_setup = true;
 262         }
 263
 264         switch (cpu_dai->id) {
 265         case PRIMARY_MI2S_RX:
 266                 jack  = pdata->jack.jack;
 267                 component = codec_dai->component;
 268
 269                 jack->private_data = component;
 270                 jack->private_free = sdm845_jack_free;
 271                 rval = snd_soc_component_set_jack(component,
 272                                                   &pdata->jack, NULL);
 273                 if (rval != 0 && rval != -ENOTSUPP) {
 274                         dev_warn(card->dev, "Failed to set jack: %d\n", rval);
 275                         return rval;
 276                 }
 277                 break;
 278         case SLIMBUS_0_RX...SLIMBUS_6_TX:
 279                 for_each_rtd_codec_dais(rtd, i, codec_dai) {
 280                         rval = snd_soc_dai_set_channel_map(codec_dai,
 281                                                           ARRAY_SIZE(tx_ch),
 282                                                           tx_ch,
 283                                                           ARRAY_SIZE(rx_ch),
 284                                                           rx_ch);
 285                         if (rval != 0 && rval != -ENOTSUPP)
 286                                 return rval;
 287
 288                         snd_soc_dai_set_sysclk(codec_dai, 0,
 289                                                WCD934X_DEFAULT_MCLK_RATE,
 290                                                SNDRV_PCM_STREAM_PLAYBACK);
 291                 }
 292                 break;
 293         default:
 294                 break;
 295         }
 296
 297         return 0;
 298 }
 299
 300
 301 static int sdm845_snd_startup(struct snd_pcm_substream *substream)
 302 {
 303         unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
 304         unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
 305         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 306         struct snd_soc_card *card = rtd->card;
 307         struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
 308         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 309         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 310         int j;
 311         int ret;
 312
 313         switch (cpu_dai->id) {
 314         case PRIMARY_MI2S_RX:
 315         case PRIMARY_MI2S_TX:
 316                 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF;
 317                 if (++(data->pri_mi2s_clk_count) == 1) {
 318                         snd_soc_dai_set_sysclk(cpu_dai,
 319                                 Q6AFE_LPASS_CLK_ID_MCLK_1,
 320                                 DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
 321                         snd_soc_dai_set_sysclk(cpu_dai,
 322                                 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
 323                                 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
 324                 }
 325                 snd_soc_dai_set_fmt(cpu_dai, fmt);
 326                 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
 327                 break;
 328
 329         case SECONDARY_MI2S_TX:
 330                 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
 331                 if (++(data->sec_mi2s_clk_count) == 1) {
 332                         snd_soc_dai_set_sysclk(cpu_dai,
 333                                 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
 334                                 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_CAPTURE);
 335                 }
 336                 snd_soc_dai_set_fmt(cpu_dai, fmt);
 337                 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
 338                 break;
 339         case QUATERNARY_MI2S_RX:
 340                 snd_soc_dai_set_sysclk(cpu_dai,
 341                         Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT,
 342                         MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
 343                 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
 344
 345
 346                 break;
 347
 348         case QUATERNARY_TDM_RX_0:
 349         case QUATERNARY_TDM_TX_0:
 350                 if (++(data->quat_tdm_clk_count) == 1) {
 351                         snd_soc_dai_set_sysclk(cpu_dai,
 352                                 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
 353                                 TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
 354                 }
 355
 356                 codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
 357
 358                 for_each_rtd_codec_dais(rtd, j, codec_dai) {
 359
 360                         if (!strcmp(codec_dai->component->name_prefix,
 361                                     "Left")) {
 362                                 ret = snd_soc_dai_set_fmt(
 363                                                 codec_dai, codec_dai_fmt);
 364                                 if (ret < 0) {
 365                                         dev_err(rtd->dev,
 366                                                 "Left TDM fmt err:%d\n", ret);
 367                                         return ret;
 368                                 }
 369                         }
 370
 371                         if (!strcmp(codec_dai->component->name_prefix,
 372                                     "Right")) {
 373                                 ret = snd_soc_dai_set_fmt(
 374                                                 codec_dai, codec_dai_fmt);
 375                                 if (ret < 0) {
 376                                         dev_err(rtd->dev,
 377                                                 "Right TDM slot err:%d\n", ret);
 378                                         return ret;
 379                                 }
 380                         }
 381                 }
 382                 break;
 383         case SLIMBUS_0_RX...SLIMBUS_6_TX:
 384                 break;
 385
 386         default:
 387                 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
 388                 break;
 389         }
 390         return 0;
 391 }
 392
 393 static void  sdm845_snd_shutdown(struct snd_pcm_substream *substream)
 394 {
 395         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 396         struct snd_soc_card *card = rtd->card;
 397         struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
 398         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 399
 400         switch (cpu_dai->id) {
 401         case PRIMARY_MI2S_RX:
 402         case PRIMARY_MI2S_TX:
 403                 if (--(data->pri_mi2s_clk_count) == 0) {
 404                         snd_soc_dai_set_sysclk(cpu_dai,
 405                                 Q6AFE_LPASS_CLK_ID_MCLK_1,
 406                                 0, SNDRV_PCM_STREAM_PLAYBACK);
 407                         snd_soc_dai_set_sysclk(cpu_dai,
 408                                 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
 409                                 0, SNDRV_PCM_STREAM_PLAYBACK);
 410                 }
 411                 break;
 412
 413         case SECONDARY_MI2S_TX:
 414                 if (--(data->sec_mi2s_clk_count) == 0) {
 415                         snd_soc_dai_set_sysclk(cpu_dai,
 416                                 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
 417                                 0, SNDRV_PCM_STREAM_CAPTURE);
 418                 }
 419                 break;
 420
 421         case QUATERNARY_TDM_RX_0:
 422         case QUATERNARY_TDM_TX_0:
 423                 if (--(data->quat_tdm_clk_count) == 0) {
 424                         snd_soc_dai_set_sysclk(cpu_dai,
 425                                 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
 426                                 0, SNDRV_PCM_STREAM_PLAYBACK);
 427                 }
 428                 break;
 429         case SLIMBUS_0_RX...SLIMBUS_6_TX:
 430         case QUATERNARY_MI2S_RX:
 431                 break;
 432
 433         default:
 434                 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
 435                 break;
 436         }
 437 }
 438
 439 static int sdm845_snd_prepare(struct snd_pcm_substream *substream)
 440 {
 441         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 442         struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
 443         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 444         struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
 445         int ret;
 446
 447         if (!sruntime)
 448                 return 0;
 449
 450         if (data->stream_prepared[cpu_dai->id]) {
 451                 sdw_disable_stream(sruntime);
 452                 sdw_deprepare_stream(sruntime);
 453                 data->stream_prepared[cpu_dai->id] = false;
 454         }
 455
 456         ret = sdw_prepare_stream(sruntime);
 457         if (ret)
 458                 return ret;
 459
 460         /**
 461          * NOTE: there is a strict hw requirement about the ordering of port
 462          * enables and actual WSA881x PA enable. PA enable should only happen
 463          * after soundwire ports are enabled if not DC on the line is
 464          * accumulated resulting in Click/Pop Noise
 465          * PA enable/mute are handled as part of codec DAPM and digital mute.
 466          */
 467
 468         ret = sdw_enable_stream(sruntime);
 469         if (ret) {
 470                 sdw_deprepare_stream(sruntime);
 471                 return ret;
 472         }
 473         data->stream_prepared[cpu_dai->id] = true;
 474
 475         return ret;
 476 }
 477
 478 static int sdm845_snd_hw_free(struct snd_pcm_substream *substream)
 479 {
 480         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 481         struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
 482         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 483         struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
 484
 485         if (sruntime && data->stream_prepared[cpu_dai->id]) {
 486                 sdw_disable_stream(sruntime);
 487                 sdw_deprepare_stream(sruntime);
 488                 data->stream_prepared[cpu_dai->id] = false;
 489         }
 490
 491         return 0;
 492 }
 493
 494 static const struct snd_soc_ops sdm845_be_ops = {
 495         .hw_params = sdm845_snd_hw_params,
 496         .hw_free = sdm845_snd_hw_free,
 497         .prepare = sdm845_snd_prepare,
 498         .startup = sdm845_snd_startup,
 499         .shutdown = sdm845_snd_shutdown,
 500 };
 501
 502 static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 503                                 struct snd_pcm_hw_params *params)
 504 {
 505         struct snd_interval *rate = hw_param_interval(params,
 506                                         SNDRV_PCM_HW_PARAM_RATE);
 507         struct snd_interval *channels = hw_param_interval(params,
 508                                         SNDRV_PCM_HW_PARAM_CHANNELS);
 509         struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 510
 511         rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
 512         channels->min = channels->max = 2;
 513         snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
 514
 515         return 0;
 516 }
 517
 518 static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
 519         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 520         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 521         SND_SOC_DAPM_SPK("Left Spk", NULL),
 522         SND_SOC_DAPM_SPK("Right Spk", NULL),
 523         SND_SOC_DAPM_MIC("Int Mic", NULL),
 524 };
 525
 526 static void sdm845_add_ops(struct snd_soc_card *card)
 527 {
 528         struct snd_soc_dai_link *link;
 529         int i;
 530
 531         for_each_card_prelinks(card, i, link) {
 532                 if (link->no_pcm == 1) {
 533                         link->ops = &sdm845_be_ops;
 534                         link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
 535                 }
 536                 link->init = sdm845_dai_init;
 537         }
 538 }
 539
 540 static int sdm845_snd_platform_probe(struct platform_device *pdev)
 541 {
 542         struct snd_soc_card *card;
 543         struct sdm845_snd_data *data;
 544         struct device *dev = &pdev->dev;
 545         int ret;
 546
 547         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
 548         if (!card)
 549                 return -ENOMEM;
 550
 551         /* Allocate the private data */
 552         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 553         if (!data)
 554                 return -ENOMEM;
 555
 556         card->driver_name = DRIVER_NAME;
 557         card->dapm_widgets = sdm845_snd_widgets;
 558         card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets);
 559         card->dev = dev;
 560         card->owner = THIS_MODULE;
 561         dev_set_drvdata(dev, card);
 562         ret = qcom_snd_parse_of(card);
 563         if (ret)
 564                 return ret;
 565
 566         data->card = card;
 567         snd_soc_card_set_drvdata(card, data);
 568
 569         sdm845_add_ops(card);
 570         return devm_snd_soc_register_card(dev, card);
 571 }
 572
 573 static const struct of_device_id sdm845_snd_device_id[]  = {
 574         { .compatible = "qcom,sdm845-sndcard" },
 575         { .compatible = "qcom,db845c-sndcard" },
 576         { .compatible = "lenovo,yoga-c630-sndcard" },
 577         {},
 578 };
 579 MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
 580
 581 static struct platform_driver sdm845_snd_driver = {
 582         .probe = sdm845_snd_platform_probe,
 583         .driver = {
 584                 .name = "msm-snd-sdm845",
 585                 .of_match_table = sdm845_snd_device_id,
 586         },
 587 };
 588 module_platform_driver(sdm845_snd_driver);
 589
 590 MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
 591 MODULE_LICENSE("GPL v2");