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 case SECONDARY_MI2S_RX: 219 break; 220 default: 221 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 222 break; 223 } 224 return ret; 225 } 226 227 static void sdm845_jack_free(struct snd_jack *jack) 228 { 229 struct snd_soc_component *component = jack->private_data; 230 231 snd_soc_component_set_jack(component, NULL, NULL); 232 } 233 234 static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd) 235 { 236 struct snd_soc_component *component; 237 struct snd_soc_card *card = rtd->card; 238 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 239 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 240 struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card); 241 struct snd_soc_dai_link *link = rtd->dai_link; 242 struct snd_jack *jack; 243 /* 244 * Codec SLIMBUS configuration 245 * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13 246 * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13 247 * TX14, TX15, TX16 248 */ 249 unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149, 250 150, 151, 152, 153, 154, 155, 156}; 251 unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133, 252 134, 135, 136, 137, 138, 139, 253 140, 141, 142, 143}; 254 int rval, i; 255 256 257 if (!pdata->jack_setup) { 258 rval = snd_soc_card_jack_new_pins(card, "Headset Jack", 259 SND_JACK_HEADSET | 260 SND_JACK_HEADPHONE | 261 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 262 SND_JACK_BTN_2 | SND_JACK_BTN_3, 263 &pdata->jack, 264 sdm845_jack_pins, 265 ARRAY_SIZE(sdm845_jack_pins)); 266 267 if (rval < 0) { 268 dev_err(card->dev, "Unable to add Headphone Jack\n"); 269 return rval; 270 } 271 272 jack = pdata->jack.jack; 273 274 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 275 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 276 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 277 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 278 pdata->jack_setup = true; 279 } 280 281 switch (cpu_dai->id) { 282 case PRIMARY_MI2S_RX: 283 jack = pdata->jack.jack; 284 component = codec_dai->component; 285 286 jack->private_data = component; 287 jack->private_free = sdm845_jack_free; 288 rval = snd_soc_component_set_jack(component, 289 &pdata->jack, NULL); 290 if (rval != 0 && rval != -ENOTSUPP) { 291 dev_warn(card->dev, "Failed to set jack: %d\n", rval); 292 return rval; 293 } 294 break; 295 case SLIMBUS_0_RX...SLIMBUS_6_TX: 296 /* setting up wcd multiple times for slim port is redundant */ 297 if (pdata->slim_port_setup || !link->no_pcm) 298 return 0; 299 300 for_each_rtd_codec_dais(rtd, i, codec_dai) { 301 rval = snd_soc_dai_set_channel_map(codec_dai, 302 ARRAY_SIZE(tx_ch), 303 tx_ch, 304 ARRAY_SIZE(rx_ch), 305 rx_ch); 306 if (rval != 0 && rval != -ENOTSUPP) 307 return rval; 308 309 snd_soc_dai_set_sysclk(codec_dai, 0, 310 WCD934X_DEFAULT_MCLK_RATE, 311 SNDRV_PCM_STREAM_PLAYBACK); 312 313 rval = snd_soc_component_set_jack(codec_dai->component, 314 &pdata->jack, NULL); 315 if (rval != 0 && rval != -ENOTSUPP) { 316 dev_warn(card->dev, "Failed to set jack: %d\n", rval); 317 return rval; 318 } 319 } 320 321 pdata->slim_port_setup = true; 322 323 break; 324 default: 325 break; 326 } 327 328 return 0; 329 } 330 331 332 static int sdm845_snd_startup(struct snd_pcm_substream *substream) 333 { 334 unsigned int fmt = SND_SOC_DAIFMT_BP_FP; 335 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_BC_FC; 336 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 337 struct snd_soc_card *card = rtd->card; 338 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); 339 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 340 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 341 int j; 342 int ret; 343 344 switch (cpu_dai->id) { 345 case PRIMARY_MI2S_RX: 346 case PRIMARY_MI2S_TX: 347 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF; 348 if (++(data->pri_mi2s_clk_count) == 1) { 349 snd_soc_dai_set_sysclk(cpu_dai, 350 Q6AFE_LPASS_CLK_ID_MCLK_1, 351 DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 352 snd_soc_dai_set_sysclk(cpu_dai, 353 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT, 354 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 355 } 356 snd_soc_dai_set_fmt(cpu_dai, fmt); 357 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 358 break; 359 360 case SECONDARY_MI2S_RX: 361 case SECONDARY_MI2S_TX: 362 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S; 363 if (++(data->sec_mi2s_clk_count) == 1) { 364 snd_soc_dai_set_sysclk(cpu_dai, 365 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 366 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_CAPTURE); 367 } 368 snd_soc_dai_set_fmt(cpu_dai, fmt); 369 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 370 break; 371 case QUATERNARY_MI2S_RX: 372 snd_soc_dai_set_sysclk(cpu_dai, 373 Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT, 374 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 375 snd_soc_dai_set_fmt(cpu_dai, fmt); 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_RX: 445 case SECONDARY_MI2S_TX: 446 if (--(data->sec_mi2s_clk_count) == 0) { 447 snd_soc_dai_set_sysclk(cpu_dai, 448 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 449 0, SNDRV_PCM_STREAM_CAPTURE); 450 } 451 break; 452 453 case QUATERNARY_TDM_RX_0: 454 case QUATERNARY_TDM_TX_0: 455 if (--(data->quat_tdm_clk_count) == 0) { 456 snd_soc_dai_set_sysclk(cpu_dai, 457 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT, 458 0, SNDRV_PCM_STREAM_PLAYBACK); 459 } 460 break; 461 case SLIMBUS_0_RX...SLIMBUS_6_TX: 462 case QUATERNARY_MI2S_RX: 463 break; 464 465 default: 466 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 467 break; 468 } 469 470 data->sruntime[cpu_dai->id] = NULL; 471 sdw_release_stream(sruntime); 472 } 473 474 static int sdm845_snd_prepare(struct snd_pcm_substream *substream) 475 { 476 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 477 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 478 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 479 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 480 int ret; 481 482 if (!sruntime) 483 return 0; 484 485 if (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 ret = sdw_prepare_stream(sruntime); 492 if (ret) 493 return ret; 494 495 /** 496 * NOTE: there is a strict hw requirement about the ordering of port 497 * enables and actual WSA881x PA enable. PA enable should only happen 498 * after soundwire ports are enabled if not DC on the line is 499 * accumulated resulting in Click/Pop Noise 500 * PA enable/mute are handled as part of codec DAPM and digital mute. 501 */ 502 503 ret = sdw_enable_stream(sruntime); 504 if (ret) { 505 sdw_deprepare_stream(sruntime); 506 return ret; 507 } 508 data->stream_prepared[cpu_dai->id] = true; 509 510 return ret; 511 } 512 513 static int sdm845_snd_hw_free(struct snd_pcm_substream *substream) 514 { 515 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 516 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 517 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 518 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 519 520 if (sruntime && data->stream_prepared[cpu_dai->id]) { 521 sdw_disable_stream(sruntime); 522 sdw_deprepare_stream(sruntime); 523 data->stream_prepared[cpu_dai->id] = false; 524 } 525 526 return 0; 527 } 528 529 static const struct snd_soc_ops sdm845_be_ops = { 530 .hw_params = sdm845_snd_hw_params, 531 .hw_free = sdm845_snd_hw_free, 532 .prepare = sdm845_snd_prepare, 533 .startup = sdm845_snd_startup, 534 .shutdown = sdm845_snd_shutdown, 535 }; 536 537 static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 538 struct snd_pcm_hw_params *params) 539 { 540 struct snd_interval *rate = hw_param_interval(params, 541 SNDRV_PCM_HW_PARAM_RATE); 542 struct snd_interval *channels = hw_param_interval(params, 543 SNDRV_PCM_HW_PARAM_CHANNELS); 544 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 545 546 rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K; 547 channels->min = channels->max = 2; 548 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 549 550 return 0; 551 } 552 553 static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = { 554 SND_SOC_DAPM_HP("Headphone Jack", NULL), 555 SND_SOC_DAPM_MIC("Headset Mic", NULL), 556 SND_SOC_DAPM_SPK("Left Spk", NULL), 557 SND_SOC_DAPM_SPK("Right Spk", NULL), 558 SND_SOC_DAPM_MIC("Int Mic", NULL), 559 }; 560 561 static const struct snd_kcontrol_new sdm845_snd_controls[] = { 562 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 563 SOC_DAPM_PIN_SWITCH("Headset Mic"), 564 }; 565 566 static void sdm845_add_ops(struct snd_soc_card *card) 567 { 568 struct snd_soc_dai_link *link; 569 int i; 570 571 for_each_card_prelinks(card, i, link) { 572 if (link->no_pcm == 1) { 573 link->ops = &sdm845_be_ops; 574 link->be_hw_params_fixup = sdm845_be_hw_params_fixup; 575 } 576 link->init = sdm845_dai_init; 577 } 578 } 579 580 static int sdm845_snd_platform_probe(struct platform_device *pdev) 581 { 582 struct snd_soc_card *card; 583 struct sdm845_snd_data *data; 584 struct device *dev = &pdev->dev; 585 int ret; 586 587 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 588 if (!card) 589 return -ENOMEM; 590 591 /* Allocate the private data */ 592 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 593 if (!data) 594 return -ENOMEM; 595 596 card->driver_name = DRIVER_NAME; 597 card->dapm_widgets = sdm845_snd_widgets; 598 card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets); 599 card->controls = sdm845_snd_controls; 600 card->num_controls = ARRAY_SIZE(sdm845_snd_controls); 601 card->dev = dev; 602 card->owner = THIS_MODULE; 603 dev_set_drvdata(dev, card); 604 ret = qcom_snd_parse_of(card); 605 if (ret) 606 return ret; 607 608 data->card = card; 609 snd_soc_card_set_drvdata(card, data); 610 611 sdm845_add_ops(card); 612 return devm_snd_soc_register_card(dev, card); 613 } 614 615 static const struct of_device_id sdm845_snd_device_id[] = { 616 { .compatible = "qcom,sdm845-sndcard" }, 617 /* Do not grow the list for compatible devices */ 618 { .compatible = "qcom,db845c-sndcard" }, 619 { .compatible = "lenovo,yoga-c630-sndcard" }, 620 {}, 621 }; 622 MODULE_DEVICE_TABLE(of, sdm845_snd_device_id); 623 624 static struct platform_driver sdm845_snd_driver = { 625 .probe = sdm845_snd_platform_probe, 626 .driver = { 627 .name = "msm-snd-sdm845", 628 .of_match_table = sdm845_snd_device_id, 629 }, 630 }; 631 module_platform_driver(sdm845_snd_driver); 632 633 MODULE_DESCRIPTION("sdm845 ASoC Machine Driver"); 634 MODULE_LICENSE("GPL"); 635