1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2018, The Linux Foundation. All rights reserved. 4 */ 5 6 #include <dt-bindings/sound/qcom,q6afe.h> 7 #include <linux/module.h> 8 #include <linux/platform_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 "sdw.h" 19 #include "../codecs/rt5663.h" 20 21 #define DRIVER_NAME "sdm845" 22 #define DEFAULT_SAMPLE_RATE_48K 48000 23 #define DEFAULT_MCLK_RATE 24576000 24 #define TDM_BCLK_RATE 6144000 25 #define MI2S_BCLK_RATE 1536000 26 #define LEFT_SPK_TDM_TX_MASK 0x30 27 #define RIGHT_SPK_TDM_TX_MASK 0xC0 28 #define SPK_TDM_RX_MASK 0x03 29 #define NUM_TDM_SLOTS 8 30 #define SLIM_MAX_TX_PORTS 16 31 #define SLIM_MAX_RX_PORTS 13 32 #define WCD934X_DEFAULT_MCLK_RATE 9600000 33 34 struct sdm845_snd_data { 35 struct snd_soc_jack jack; 36 bool jack_setup; 37 bool slim_port_setup; 38 bool stream_prepared[AFE_PORT_MAX]; 39 struct snd_soc_card *card; 40 uint32_t pri_mi2s_clk_count; 41 uint32_t sec_mi2s_clk_count; 42 uint32_t quat_tdm_clk_count; 43 struct sdw_stream_runtime *sruntime[AFE_PORT_MAX]; 44 }; 45 46 static struct snd_soc_jack_pin sdm845_jack_pins[] = { 47 { 48 .pin = "Headphone Jack", 49 .mask = SND_JACK_HEADPHONE, 50 }, 51 { 52 .pin = "Headset Mic", 53 .mask = SND_JACK_MICROPHONE, 54 }, 55 }; 56 57 static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28}; 58 59 static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream, 60 struct snd_pcm_hw_params *params) 61 { 62 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 63 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 64 struct snd_soc_dai *codec_dai; 65 struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 66 u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS]; 67 struct sdw_stream_runtime *sruntime; 68 u32 rx_ch_cnt = 0, tx_ch_cnt = 0; 69 int ret = 0, i; 70 71 for_each_rtd_codec_dais(rtd, i, codec_dai) { 72 sruntime = snd_soc_dai_get_stream(codec_dai, 73 substream->stream); 74 if (sruntime != ERR_PTR(-ENOTSUPP)) 75 pdata->sruntime[cpu_dai->id] = sruntime; 76 77 ret = snd_soc_dai_get_channel_map(codec_dai, 78 &tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch); 79 80 if (ret != 0 && ret != -ENOTSUPP) { 81 pr_err("failed to get codec chan map, err:%d\n", ret); 82 return ret; 83 } else if (ret == -ENOTSUPP) { 84 /* Ignore unsupported */ 85 continue; 86 } 87 88 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 89 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, 90 rx_ch_cnt, rx_ch); 91 else 92 ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt, 93 tx_ch, 0, NULL); 94 } 95 96 return 0; 97 } 98 99 static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream, 100 struct snd_pcm_hw_params *params) 101 { 102 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 103 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 104 struct snd_soc_dai *codec_dai; 105 int ret = 0, j; 106 int channels, slot_width; 107 108 switch (params_format(params)) { 109 case SNDRV_PCM_FORMAT_S16_LE: 110 slot_width = 16; 111 break; 112 default: 113 dev_err(rtd->dev, "%s: invalid param format 0x%x\n", 114 __func__, params_format(params)); 115 return -EINVAL; 116 } 117 118 channels = params_channels(params); 119 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 120 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3, 121 8, slot_width); 122 if (ret < 0) { 123 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n", 124 __func__, ret); 125 goto end; 126 } 127 128 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, 129 channels, tdm_slot_offset); 130 if (ret < 0) { 131 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n", 132 __func__, ret); 133 goto end; 134 } 135 } else { 136 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0, 137 8, slot_width); 138 if (ret < 0) { 139 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n", 140 __func__, ret); 141 goto end; 142 } 143 144 ret = snd_soc_dai_set_channel_map(cpu_dai, channels, 145 tdm_slot_offset, 0, NULL); 146 if (ret < 0) { 147 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n", 148 __func__, ret); 149 goto end; 150 } 151 } 152 153 for_each_rtd_codec_dais(rtd, j, codec_dai) { 154 155 if (!strcmp(codec_dai->component->name_prefix, "Left")) { 156 ret = snd_soc_dai_set_tdm_slot( 157 codec_dai, LEFT_SPK_TDM_TX_MASK, 158 SPK_TDM_RX_MASK, NUM_TDM_SLOTS, 159 slot_width); 160 if (ret < 0) { 161 dev_err(rtd->dev, 162 "DEV0 TDM slot err:%d\n", ret); 163 return ret; 164 } 165 } 166 167 if (!strcmp(codec_dai->component->name_prefix, "Right")) { 168 ret = snd_soc_dai_set_tdm_slot( 169 codec_dai, RIGHT_SPK_TDM_TX_MASK, 170 SPK_TDM_RX_MASK, NUM_TDM_SLOTS, 171 slot_width); 172 if (ret < 0) { 173 dev_err(rtd->dev, 174 "DEV1 TDM slot err:%d\n", ret); 175 return ret; 176 } 177 } 178 } 179 180 end: 181 return ret; 182 } 183 184 static int sdm845_snd_hw_params(struct snd_pcm_substream *substream, 185 struct snd_pcm_hw_params *params) 186 { 187 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 188 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 189 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 190 int ret = 0; 191 192 switch (cpu_dai->id) { 193 case PRIMARY_MI2S_RX: 194 case PRIMARY_MI2S_TX: 195 /* 196 * Use ASRC for internal clocks, as PLL rate isn't multiple 197 * of BCLK. 198 */ 199 rt5663_sel_asrc_clk_src( 200 codec_dai->component, 201 RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER, 202 RT5663_CLK_SEL_I2S1_ASRC); 203 ret = snd_soc_dai_set_sysclk( 204 codec_dai, RT5663_SCLK_S_MCLK, DEFAULT_MCLK_RATE, 205 SND_SOC_CLOCK_IN); 206 if (ret < 0) 207 dev_err(rtd->dev, 208 "snd_soc_dai_set_sysclk err = %d\n", ret); 209 break; 210 case QUATERNARY_TDM_RX_0: 211 case QUATERNARY_TDM_TX_0: 212 ret = sdm845_tdm_snd_hw_params(substream, params); 213 break; 214 case SLIMBUS_0_RX...SLIMBUS_6_TX: 215 ret = sdm845_slim_snd_hw_params(substream, params); 216 break; 217 case QUATERNARY_MI2S_RX: 218 break; 219 default: 220 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 221 break; 222 } 223 return ret; 224 } 225 226 static void sdm845_jack_free(struct snd_jack *jack) 227 { 228 struct snd_soc_component *component = jack->private_data; 229 230 snd_soc_component_set_jack(component, NULL, NULL); 231 } 232 233 static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd) 234 { 235 struct snd_soc_component *component; 236 struct snd_soc_card *card = rtd->card; 237 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 238 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 239 struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card); 240 struct snd_soc_dai_link *link = rtd->dai_link; 241 struct snd_jack *jack; 242 /* 243 * Codec SLIMBUS configuration 244 * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13 245 * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13 246 * TX14, TX15, TX16 247 */ 248 unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149, 249 150, 151, 152, 153, 154, 155, 156}; 250 unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133, 251 134, 135, 136, 137, 138, 139, 252 140, 141, 142, 143}; 253 int rval, i; 254 255 256 if (!pdata->jack_setup) { 257 rval = snd_soc_card_jack_new_pins(card, "Headset Jack", 258 SND_JACK_HEADSET | 259 SND_JACK_HEADPHONE | 260 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 261 SND_JACK_BTN_2 | SND_JACK_BTN_3, 262 &pdata->jack, 263 sdm845_jack_pins, 264 ARRAY_SIZE(sdm845_jack_pins)); 265 266 if (rval < 0) { 267 dev_err(card->dev, "Unable to add Headphone Jack\n"); 268 return rval; 269 } 270 271 jack = pdata->jack.jack; 272 273 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 274 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 275 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 276 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 277 pdata->jack_setup = true; 278 } 279 280 switch (cpu_dai->id) { 281 case PRIMARY_MI2S_RX: 282 jack = pdata->jack.jack; 283 component = codec_dai->component; 284 285 jack->private_data = component; 286 jack->private_free = sdm845_jack_free; 287 rval = snd_soc_component_set_jack(component, 288 &pdata->jack, NULL); 289 if (rval != 0 && rval != -ENOTSUPP) { 290 dev_warn(card->dev, "Failed to set jack: %d\n", rval); 291 return rval; 292 } 293 break; 294 case SLIMBUS_0_RX...SLIMBUS_6_TX: 295 /* setting up wcd multiple times for slim port is redundant */ 296 if (pdata->slim_port_setup || !link->no_pcm) 297 return 0; 298 299 for_each_rtd_codec_dais(rtd, i, codec_dai) { 300 rval = snd_soc_dai_set_channel_map(codec_dai, 301 ARRAY_SIZE(tx_ch), 302 tx_ch, 303 ARRAY_SIZE(rx_ch), 304 rx_ch); 305 if (rval != 0 && rval != -ENOTSUPP) 306 return rval; 307 308 snd_soc_dai_set_sysclk(codec_dai, 0, 309 WCD934X_DEFAULT_MCLK_RATE, 310 SNDRV_PCM_STREAM_PLAYBACK); 311 312 rval = snd_soc_component_set_jack(codec_dai->component, 313 &pdata->jack, NULL); 314 if (rval != 0 && rval != -ENOTSUPP) { 315 dev_warn(card->dev, "Failed to set jack: %d\n", rval); 316 return rval; 317 } 318 } 319 320 pdata->slim_port_setup = true; 321 322 break; 323 default: 324 break; 325 } 326 327 return 0; 328 } 329 330 331 static int sdm845_snd_startup(struct snd_pcm_substream *substream) 332 { 333 unsigned int fmt = SND_SOC_DAIFMT_BP_FP; 334 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_BC_FC; 335 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 336 struct snd_soc_card *card = rtd->card; 337 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); 338 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 339 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 340 int j; 341 int ret; 342 343 switch (cpu_dai->id) { 344 case PRIMARY_MI2S_RX: 345 case PRIMARY_MI2S_TX: 346 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF; 347 if (++(data->pri_mi2s_clk_count) == 1) { 348 snd_soc_dai_set_sysclk(cpu_dai, 349 Q6AFE_LPASS_CLK_ID_MCLK_1, 350 DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 351 snd_soc_dai_set_sysclk(cpu_dai, 352 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT, 353 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 354 } 355 snd_soc_dai_set_fmt(cpu_dai, fmt); 356 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 357 break; 358 359 case SECONDARY_MI2S_TX: 360 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S; 361 if (++(data->sec_mi2s_clk_count) == 1) { 362 snd_soc_dai_set_sysclk(cpu_dai, 363 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 364 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_CAPTURE); 365 } 366 snd_soc_dai_set_fmt(cpu_dai, fmt); 367 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 368 break; 369 case QUATERNARY_MI2S_RX: 370 snd_soc_dai_set_sysclk(cpu_dai, 371 Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT, 372 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 373 snd_soc_dai_set_fmt(cpu_dai, fmt); 374 375 376 break; 377 378 case QUATERNARY_TDM_RX_0: 379 case QUATERNARY_TDM_TX_0: 380 if (++(data->quat_tdm_clk_count) == 1) { 381 snd_soc_dai_set_sysclk(cpu_dai, 382 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT, 383 TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 384 } 385 386 codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B; 387 388 for_each_rtd_codec_dais(rtd, j, codec_dai) { 389 390 if (!strcmp(codec_dai->component->name_prefix, 391 "Left")) { 392 ret = snd_soc_dai_set_fmt( 393 codec_dai, codec_dai_fmt); 394 if (ret < 0) { 395 dev_err(rtd->dev, 396 "Left TDM fmt err:%d\n", ret); 397 return ret; 398 } 399 } 400 401 if (!strcmp(codec_dai->component->name_prefix, 402 "Right")) { 403 ret = snd_soc_dai_set_fmt( 404 codec_dai, codec_dai_fmt); 405 if (ret < 0) { 406 dev_err(rtd->dev, 407 "Right TDM slot err:%d\n", ret); 408 return ret; 409 } 410 } 411 } 412 break; 413 case SLIMBUS_0_RX...SLIMBUS_6_TX: 414 break; 415 416 default: 417 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 418 break; 419 } 420 return qcom_snd_sdw_startup(substream); 421 } 422 423 static void sdm845_snd_shutdown(struct snd_pcm_substream *substream) 424 { 425 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 426 struct snd_soc_card *card = rtd->card; 427 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); 428 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 429 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 430 431 switch (cpu_dai->id) { 432 case PRIMARY_MI2S_RX: 433 case PRIMARY_MI2S_TX: 434 if (--(data->pri_mi2s_clk_count) == 0) { 435 snd_soc_dai_set_sysclk(cpu_dai, 436 Q6AFE_LPASS_CLK_ID_MCLK_1, 437 0, SNDRV_PCM_STREAM_PLAYBACK); 438 snd_soc_dai_set_sysclk(cpu_dai, 439 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT, 440 0, SNDRV_PCM_STREAM_PLAYBACK); 441 } 442 break; 443 444 case SECONDARY_MI2S_TX: 445 if (--(data->sec_mi2s_clk_count) == 0) { 446 snd_soc_dai_set_sysclk(cpu_dai, 447 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 448 0, SNDRV_PCM_STREAM_CAPTURE); 449 } 450 break; 451 452 case QUATERNARY_TDM_RX_0: 453 case QUATERNARY_TDM_TX_0: 454 if (--(data->quat_tdm_clk_count) == 0) { 455 snd_soc_dai_set_sysclk(cpu_dai, 456 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT, 457 0, SNDRV_PCM_STREAM_PLAYBACK); 458 } 459 break; 460 case SLIMBUS_0_RX...SLIMBUS_6_TX: 461 case QUATERNARY_MI2S_RX: 462 break; 463 464 default: 465 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 466 break; 467 } 468 469 data->sruntime[cpu_dai->id] = NULL; 470 sdw_release_stream(sruntime); 471 } 472 473 static int sdm845_snd_prepare(struct snd_pcm_substream *substream) 474 { 475 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 476 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 477 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 478 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 479 int ret; 480 481 if (!sruntime) 482 return 0; 483 484 if (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 ret = sdw_prepare_stream(sruntime); 491 if (ret) 492 return ret; 493 494 /** 495 * NOTE: there is a strict hw requirement about the ordering of port 496 * enables and actual WSA881x PA enable. PA enable should only happen 497 * after soundwire ports are enabled if not DC on the line is 498 * accumulated resulting in Click/Pop Noise 499 * PA enable/mute are handled as part of codec DAPM and digital mute. 500 */ 501 502 ret = sdw_enable_stream(sruntime); 503 if (ret) { 504 sdw_deprepare_stream(sruntime); 505 return ret; 506 } 507 data->stream_prepared[cpu_dai->id] = true; 508 509 return ret; 510 } 511 512 static int sdm845_snd_hw_free(struct snd_pcm_substream *substream) 513 { 514 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 515 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 516 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 517 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 518 519 if (sruntime && data->stream_prepared[cpu_dai->id]) { 520 sdw_disable_stream(sruntime); 521 sdw_deprepare_stream(sruntime); 522 data->stream_prepared[cpu_dai->id] = false; 523 } 524 525 return 0; 526 } 527 528 static const struct snd_soc_ops sdm845_be_ops = { 529 .hw_params = sdm845_snd_hw_params, 530 .hw_free = sdm845_snd_hw_free, 531 .prepare = sdm845_snd_prepare, 532 .startup = sdm845_snd_startup, 533 .shutdown = sdm845_snd_shutdown, 534 }; 535 536 static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 537 struct snd_pcm_hw_params *params) 538 { 539 struct snd_interval *rate = hw_param_interval(params, 540 SNDRV_PCM_HW_PARAM_RATE); 541 struct snd_interval *channels = hw_param_interval(params, 542 SNDRV_PCM_HW_PARAM_CHANNELS); 543 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 544 545 rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K; 546 channels->min = channels->max = 2; 547 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 548 549 return 0; 550 } 551 552 static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = { 553 SND_SOC_DAPM_HP("Headphone Jack", NULL), 554 SND_SOC_DAPM_MIC("Headset Mic", NULL), 555 SND_SOC_DAPM_SPK("Left Spk", NULL), 556 SND_SOC_DAPM_SPK("Right Spk", NULL), 557 SND_SOC_DAPM_MIC("Int Mic", NULL), 558 }; 559 560 static const struct snd_kcontrol_new sdm845_snd_controls[] = { 561 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 562 SOC_DAPM_PIN_SWITCH("Headset Mic"), 563 }; 564 565 static void sdm845_add_ops(struct snd_soc_card *card) 566 { 567 struct snd_soc_dai_link *link; 568 int i; 569 570 for_each_card_prelinks(card, i, link) { 571 if (link->no_pcm == 1) { 572 link->ops = &sdm845_be_ops; 573 link->be_hw_params_fixup = sdm845_be_hw_params_fixup; 574 } 575 link->init = sdm845_dai_init; 576 } 577 } 578 579 static int sdm845_snd_platform_probe(struct platform_device *pdev) 580 { 581 struct snd_soc_card *card; 582 struct sdm845_snd_data *data; 583 struct device *dev = &pdev->dev; 584 int ret; 585 586 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 587 if (!card) 588 return -ENOMEM; 589 590 /* Allocate the private data */ 591 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 592 if (!data) 593 return -ENOMEM; 594 595 card->driver_name = DRIVER_NAME; 596 card->dapm_widgets = sdm845_snd_widgets; 597 card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets); 598 card->controls = sdm845_snd_controls; 599 card->num_controls = ARRAY_SIZE(sdm845_snd_controls); 600 card->dev = dev; 601 card->owner = THIS_MODULE; 602 dev_set_drvdata(dev, card); 603 ret = qcom_snd_parse_of(card); 604 if (ret) 605 return ret; 606 607 data->card = card; 608 snd_soc_card_set_drvdata(card, data); 609 610 sdm845_add_ops(card); 611 return devm_snd_soc_register_card(dev, card); 612 } 613 614 static const struct of_device_id sdm845_snd_device_id[] = { 615 { .compatible = "qcom,sdm845-sndcard" }, 616 /* Do not grow the list for compatible devices */ 617 { .compatible = "qcom,db845c-sndcard" }, 618 { .compatible = "lenovo,yoga-c630-sndcard" }, 619 {}, 620 }; 621 MODULE_DEVICE_TABLE(of, sdm845_snd_device_id); 622 623 static struct platform_driver sdm845_snd_driver = { 624 .probe = sdm845_snd_platform_probe, 625 .driver = { 626 .name = "msm-snd-sdm845", 627 .of_match_table = sdm845_snd_device_id, 628 }, 629 }; 630 module_platform_driver(sdm845_snd_driver); 631 632 MODULE_DESCRIPTION("sdm845 ASoC Machine Driver"); 633 MODULE_LICENSE("GPL"); 634