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