1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright(c) 2017-18 Intel Corporation. 3 4 /* 5 * Intel Kabylake I2S Machine Driver with MAX98357A & DA7219 Codecs 6 * 7 * Modified from: 8 * Intel Kabylake I2S Machine driver supporting MAXIM98927 and 9 * RT5663 codecs 10 */ 11 12 #include <linux/input.h> 13 #include <linux/module.h> 14 #include <linux/platform_device.h> 15 #include <sound/core.h> 16 #include <sound/jack.h> 17 #include <sound/pcm.h> 18 #include <sound/pcm_params.h> 19 #include <sound/soc.h> 20 #include "../../codecs/da7219.h" 21 #include "../../codecs/hdac_hdmi.h" 22 #include "../../codecs/da7219-aad.h" 23 24 #define KBL_DIALOG_CODEC_DAI "da7219-hifi" 25 #define KBL_MAXIM_CODEC_DAI "HiFi" 26 #define MAXIM_DEV0_NAME "MX98357A:00" 27 #define DUAL_CHANNEL 2 28 #define QUAD_CHANNEL 4 29 30 static struct snd_soc_card *kabylake_audio_card; 31 static struct snd_soc_jack skylake_hdmi[3]; 32 33 struct kbl_hdmi_pcm { 34 struct list_head head; 35 struct snd_soc_dai *codec_dai; 36 int device; 37 }; 38 39 struct kbl_codec_private { 40 struct snd_soc_jack kabylake_headset; 41 struct list_head hdmi_pcm_list; 42 }; 43 44 enum { 45 KBL_DPCM_AUDIO_PB = 0, 46 KBL_DPCM_AUDIO_CP, 47 KBL_DPCM_AUDIO_DMIC_CP, 48 KBL_DPCM_AUDIO_HDMI1_PB, 49 KBL_DPCM_AUDIO_HDMI2_PB, 50 KBL_DPCM_AUDIO_HDMI3_PB, 51 }; 52 53 static int platform_clock_control(struct snd_soc_dapm_widget *w, 54 struct snd_kcontrol *k, int event) 55 { 56 struct snd_soc_dapm_context *dapm = w->dapm; 57 struct snd_soc_card *card = dapm->card; 58 struct snd_soc_dai *codec_dai; 59 int ret = 0; 60 61 codec_dai = snd_soc_card_get_codec_dai(card, KBL_DIALOG_CODEC_DAI); 62 if (!codec_dai) { 63 dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n"); 64 return -EIO; 65 } 66 67 if (SND_SOC_DAPM_EVENT_OFF(event)) { 68 ret = snd_soc_dai_set_pll(codec_dai, 0, 69 DA7219_SYSCLK_MCLK, 0, 0); 70 if (ret) 71 dev_err(card->dev, "failed to stop PLL: %d\n", ret); 72 } else if (SND_SOC_DAPM_EVENT_ON(event)) { 73 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM, 74 0, DA7219_PLL_FREQ_OUT_98304); 75 if (ret) 76 dev_err(card->dev, "failed to start PLL: %d\n", ret); 77 } 78 79 return ret; 80 } 81 82 static const struct snd_kcontrol_new kabylake_controls[] = { 83 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 84 SOC_DAPM_PIN_SWITCH("Headset Mic"), 85 SOC_DAPM_PIN_SWITCH("Spk"), 86 }; 87 88 static const struct snd_soc_dapm_widget kabylake_widgets[] = { 89 SND_SOC_DAPM_HP("Headphone Jack", NULL), 90 SND_SOC_DAPM_MIC("Headset Mic", NULL), 91 SND_SOC_DAPM_SPK("Spk", NULL), 92 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 93 SND_SOC_DAPM_SPK("DP", NULL), 94 SND_SOC_DAPM_SPK("HDMI", NULL), 95 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 96 platform_clock_control, SND_SOC_DAPM_PRE_PMU | 97 SND_SOC_DAPM_POST_PMD), 98 }; 99 100 static const struct snd_soc_dapm_route kabylake_map[] = { 101 { "Headphone Jack", NULL, "HPL" }, 102 { "Headphone Jack", NULL, "HPR" }, 103 104 /* speaker */ 105 { "Spk", NULL, "Speaker" }, 106 107 /* other jacks */ 108 { "MIC", NULL, "Headset Mic" }, 109 { "DMic", NULL, "SoC DMIC" }, 110 111 { "HDMI", NULL, "hif5 Output" }, 112 { "DP", NULL, "hif6 Output" }, 113 114 /* CODEC BE connections */ 115 { "HiFi Playback", NULL, "ssp0 Tx" }, 116 { "ssp0 Tx", NULL, "codec0_out" }, 117 118 { "Playback", NULL, "ssp1 Tx" }, 119 { "ssp1 Tx", NULL, "codec1_out" }, 120 121 { "codec0_in", NULL, "ssp1 Rx" }, 122 { "ssp1 Rx", NULL, "Capture" }, 123 124 /* DMIC */ 125 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 126 { "DMIC01 Rx", NULL, "DMIC AIF" }, 127 128 { "hifi1", NULL, "iDisp1 Tx" }, 129 { "iDisp1 Tx", NULL, "iDisp1_out" }, 130 { "hifi2", NULL, "iDisp2 Tx" }, 131 { "iDisp2 Tx", NULL, "iDisp2_out" }, 132 { "hifi3", NULL, "iDisp3 Tx"}, 133 { "iDisp3 Tx", NULL, "iDisp3_out"}, 134 135 { "Headphone Jack", NULL, "Platform Clock" }, 136 { "Headset Mic", NULL, "Platform Clock" }, 137 }; 138 139 static int kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, 140 struct snd_pcm_hw_params *params) 141 { 142 struct snd_interval *rate = hw_param_interval(params, 143 SNDRV_PCM_HW_PARAM_RATE); 144 struct snd_interval *chan = hw_param_interval(params, 145 SNDRV_PCM_HW_PARAM_CHANNELS); 146 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 147 148 /* The ADSP will convert the FE rate to 48k, stereo */ 149 rate->min = rate->max = 48000; 150 chan->min = chan->max = DUAL_CHANNEL; 151 152 /* set SSP to 24 bit */ 153 snd_mask_none(fmt); 154 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 155 156 return 0; 157 } 158 159 static int kabylake_da7219_codec_init(struct snd_soc_pcm_runtime *rtd) 160 { 161 struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card); 162 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 163 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 164 struct snd_soc_jack *jack; 165 int ret; 166 167 /* Configure sysclk for codec */ 168 ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24576000, 169 SND_SOC_CLOCK_IN); 170 if (ret) { 171 dev_err(rtd->dev, "can't set codec sysclk configuration\n"); 172 return ret; 173 } 174 175 /* 176 * Headset buttons map to the google Reference headset. 177 * These can be configured by userspace. 178 */ 179 ret = snd_soc_card_jack_new(kabylake_audio_card, "Headset Jack", 180 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 181 SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT, 182 &ctx->kabylake_headset, NULL, 0); 183 if (ret) { 184 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); 185 return ret; 186 } 187 188 jack = &ctx->kabylake_headset; 189 190 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 191 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 192 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 193 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 194 da7219_aad_jack_det(component, &ctx->kabylake_headset); 195 196 ret = snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); 197 if (ret) 198 dev_err(rtd->dev, "SoC DMIC - Ignore suspend failed %d\n", ret); 199 200 return ret; 201 } 202 203 static int kabylake_hdmi_init(struct snd_soc_pcm_runtime *rtd, int device) 204 { 205 struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card); 206 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); 207 struct kbl_hdmi_pcm *pcm; 208 209 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 210 if (!pcm) 211 return -ENOMEM; 212 213 pcm->device = device; 214 pcm->codec_dai = dai; 215 216 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 217 218 return 0; 219 } 220 221 static int kabylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) 222 { 223 return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI1_PB); 224 } 225 226 static int kabylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd) 227 { 228 return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI2_PB); 229 } 230 231 static int kabylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd) 232 { 233 return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI3_PB); 234 } 235 236 static int kabylake_da7219_fe_init(struct snd_soc_pcm_runtime *rtd) 237 { 238 struct snd_soc_dapm_context *dapm; 239 struct snd_soc_component *component = asoc_rtd_to_cpu(rtd, 0)->component; 240 241 dapm = snd_soc_component_get_dapm(component); 242 snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 243 244 return 0; 245 } 246 247 static const unsigned int rates[] = { 248 48000, 249 }; 250 251 static const struct snd_pcm_hw_constraint_list constraints_rates = { 252 .count = ARRAY_SIZE(rates), 253 .list = rates, 254 .mask = 0, 255 }; 256 257 static const unsigned int channels[] = { 258 DUAL_CHANNEL, 259 }; 260 261 static const struct snd_pcm_hw_constraint_list constraints_channels = { 262 .count = ARRAY_SIZE(channels), 263 .list = channels, 264 .mask = 0, 265 }; 266 267 static unsigned int channels_quad[] = { 268 QUAD_CHANNEL, 269 }; 270 271 static struct snd_pcm_hw_constraint_list constraints_channels_quad = { 272 .count = ARRAY_SIZE(channels_quad), 273 .list = channels_quad, 274 .mask = 0, 275 }; 276 277 static int kbl_fe_startup(struct snd_pcm_substream *substream) 278 { 279 struct snd_pcm_runtime *runtime = substream->runtime; 280 281 /* 282 * On this platform for PCM device we support, 283 * 48Khz 284 * stereo 285 * 16 bit audio 286 */ 287 288 runtime->hw.channels_max = DUAL_CHANNEL; 289 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 290 &constraints_channels); 291 292 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; 293 snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); 294 295 snd_pcm_hw_constraint_list(runtime, 0, 296 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 297 298 return 0; 299 } 300 301 static const struct snd_soc_ops kabylake_da7219_fe_ops = { 302 .startup = kbl_fe_startup, 303 }; 304 305 static int kabylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 306 struct snd_pcm_hw_params *params) 307 { 308 struct snd_interval *chan = hw_param_interval(params, 309 SNDRV_PCM_HW_PARAM_CHANNELS); 310 311 /* 312 * set BE channel constraint as user FE channels 313 */ 314 315 if (params_channels(params) == 2) 316 chan->min = chan->max = 2; 317 else 318 chan->min = chan->max = 4; 319 320 return 0; 321 } 322 323 static int kabylake_dmic_startup(struct snd_pcm_substream *substream) 324 { 325 struct snd_pcm_runtime *runtime = substream->runtime; 326 327 runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL; 328 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 329 &constraints_channels_quad); 330 331 return snd_pcm_hw_constraint_list(substream->runtime, 0, 332 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 333 } 334 335 static struct snd_soc_ops kabylake_dmic_ops = { 336 .startup = kabylake_dmic_startup, 337 }; 338 339 SND_SOC_DAILINK_DEF(dummy, 340 DAILINK_COMP_ARRAY(COMP_DUMMY())); 341 342 SND_SOC_DAILINK_DEF(system, 343 DAILINK_COMP_ARRAY(COMP_CPU("System Pin"))); 344 345 SND_SOC_DAILINK_DEF(dmic, 346 DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin"))); 347 348 SND_SOC_DAILINK_DEF(hdmi1, 349 DAILINK_COMP_ARRAY(COMP_CPU("HDMI1 Pin"))); 350 351 SND_SOC_DAILINK_DEF(hdmi2, 352 DAILINK_COMP_ARRAY(COMP_CPU("HDMI2 Pin"))); 353 354 SND_SOC_DAILINK_DEF(hdmi3, 355 DAILINK_COMP_ARRAY(COMP_CPU("HDMI3 Pin"))); 356 357 SND_SOC_DAILINK_DEF(ssp0_pin, 358 DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin"))); 359 SND_SOC_DAILINK_DEF(ssp0_codec, 360 DAILINK_COMP_ARRAY(COMP_CODEC(MAXIM_DEV0_NAME, 361 KBL_MAXIM_CODEC_DAI))); 362 363 SND_SOC_DAILINK_DEF(ssp1_pin, 364 DAILINK_COMP_ARRAY(COMP_CPU("SSP1 Pin"))); 365 SND_SOC_DAILINK_DEF(ssp1_codec, 366 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", 367 KBL_DIALOG_CODEC_DAI))); 368 369 SND_SOC_DAILINK_DEF(dmic_pin, 370 DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin"))); 371 SND_SOC_DAILINK_DEF(dmic_codec, 372 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi"))); 373 374 SND_SOC_DAILINK_DEF(idisp1_pin, 375 DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin"))); 376 SND_SOC_DAILINK_DEF(idisp1_codec, 377 DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", 378 "intel-hdmi-hifi1"))); 379 380 SND_SOC_DAILINK_DEF(idisp2_pin, 381 DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin"))); 382 SND_SOC_DAILINK_DEF(idisp2_codec, 383 DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi2"))); 384 385 SND_SOC_DAILINK_DEF(idisp3_pin, 386 DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin"))); 387 SND_SOC_DAILINK_DEF(idisp3_codec, 388 DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi3"))); 389 390 SND_SOC_DAILINK_DEF(platform, 391 DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:1f.3"))); 392 393 /* kabylake digital audio interface glue - connects codec <--> CPU */ 394 static struct snd_soc_dai_link kabylake_dais[] = { 395 /* Front End DAI links */ 396 [KBL_DPCM_AUDIO_PB] = { 397 .name = "Kbl Audio Port", 398 .stream_name = "Audio", 399 .dynamic = 1, 400 .nonatomic = 1, 401 .init = kabylake_da7219_fe_init, 402 .trigger = { 403 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 404 .dpcm_playback = 1, 405 .ops = &kabylake_da7219_fe_ops, 406 SND_SOC_DAILINK_REG(system, dummy, platform), 407 }, 408 [KBL_DPCM_AUDIO_CP] = { 409 .name = "Kbl Audio Capture Port", 410 .stream_name = "Audio Record", 411 .dynamic = 1, 412 .nonatomic = 1, 413 .trigger = { 414 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 415 .dpcm_capture = 1, 416 .ops = &kabylake_da7219_fe_ops, 417 SND_SOC_DAILINK_REG(system, dummy, platform), 418 }, 419 [KBL_DPCM_AUDIO_DMIC_CP] = { 420 .name = "Kbl Audio DMIC cap", 421 .stream_name = "dmiccap", 422 .init = NULL, 423 .dpcm_capture = 1, 424 .nonatomic = 1, 425 .dynamic = 1, 426 .ops = &kabylake_dmic_ops, 427 SND_SOC_DAILINK_REG(dmic, dummy, platform), 428 }, 429 [KBL_DPCM_AUDIO_HDMI1_PB] = { 430 .name = "Kbl HDMI Port1", 431 .stream_name = "Hdmi1", 432 .dpcm_playback = 1, 433 .init = NULL, 434 .trigger = { 435 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 436 .nonatomic = 1, 437 .dynamic = 1, 438 SND_SOC_DAILINK_REG(hdmi1, dummy, platform), 439 }, 440 [KBL_DPCM_AUDIO_HDMI2_PB] = { 441 .name = "Kbl HDMI Port2", 442 .stream_name = "Hdmi2", 443 .dpcm_playback = 1, 444 .init = NULL, 445 .trigger = { 446 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 447 .nonatomic = 1, 448 .dynamic = 1, 449 SND_SOC_DAILINK_REG(hdmi2, dummy, platform), 450 }, 451 [KBL_DPCM_AUDIO_HDMI3_PB] = { 452 .name = "Kbl HDMI Port3", 453 .stream_name = "Hdmi3", 454 .trigger = { 455 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 456 .dpcm_playback = 1, 457 .init = NULL, 458 .nonatomic = 1, 459 .dynamic = 1, 460 SND_SOC_DAILINK_REG(hdmi3, dummy, platform), 461 }, 462 463 /* Back End DAI links */ 464 { 465 /* SSP0 - Codec */ 466 .name = "SSP0-Codec", 467 .id = 0, 468 .no_pcm = 1, 469 .dai_fmt = SND_SOC_DAIFMT_I2S | 470 SND_SOC_DAIFMT_NB_NF | 471 SND_SOC_DAIFMT_CBS_CFS, 472 .ignore_pmdown_time = 1, 473 .be_hw_params_fixup = kabylake_ssp_fixup, 474 .dpcm_playback = 1, 475 SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform), 476 }, 477 { 478 /* SSP1 - Codec */ 479 .name = "SSP1-Codec", 480 .id = 1, 481 .no_pcm = 1, 482 .init = kabylake_da7219_codec_init, 483 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 484 SND_SOC_DAIFMT_CBS_CFS, 485 .ignore_pmdown_time = 1, 486 .be_hw_params_fixup = kabylake_ssp_fixup, 487 .dpcm_playback = 1, 488 .dpcm_capture = 1, 489 SND_SOC_DAILINK_REG(ssp1_pin, ssp1_codec, platform), 490 }, 491 { 492 .name = "dmic01", 493 .id = 2, 494 .be_hw_params_fixup = kabylake_dmic_fixup, 495 .ignore_suspend = 1, 496 .dpcm_capture = 1, 497 .no_pcm = 1, 498 SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform), 499 }, 500 { 501 .name = "iDisp1", 502 .id = 3, 503 .dpcm_playback = 1, 504 .init = kabylake_hdmi1_init, 505 .no_pcm = 1, 506 SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform), 507 }, 508 { 509 .name = "iDisp2", 510 .id = 4, 511 .init = kabylake_hdmi2_init, 512 .dpcm_playback = 1, 513 .no_pcm = 1, 514 SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform), 515 }, 516 { 517 .name = "iDisp3", 518 .id = 5, 519 .init = kabylake_hdmi3_init, 520 .dpcm_playback = 1, 521 .no_pcm = 1, 522 SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform), 523 }, 524 }; 525 526 #define NAME_SIZE 32 527 static int kabylake_card_late_probe(struct snd_soc_card *card) 528 { 529 struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(card); 530 struct kbl_hdmi_pcm *pcm; 531 struct snd_soc_component *component = NULL; 532 int err, i = 0; 533 char jack_name[NAME_SIZE]; 534 535 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 536 component = pcm->codec_dai->component; 537 snprintf(jack_name, sizeof(jack_name), 538 "HDMI/DP, pcm=%d Jack", pcm->device); 539 err = snd_soc_card_jack_new(card, jack_name, 540 SND_JACK_AVOUT, &skylake_hdmi[i], 541 NULL, 0); 542 543 if (err) 544 return err; 545 546 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, 547 &skylake_hdmi[i]); 548 if (err < 0) 549 return err; 550 551 i++; 552 553 } 554 555 if (!component) 556 return -EINVAL; 557 558 return hdac_hdmi_jack_port_init(component, &card->dapm); 559 } 560 561 /* kabylake audio machine driver for SPT + DA7219 */ 562 static struct snd_soc_card kabylake_audio_card_da7219_m98357a = { 563 .name = "kblda7219max", 564 .owner = THIS_MODULE, 565 .dai_link = kabylake_dais, 566 .num_links = ARRAY_SIZE(kabylake_dais), 567 .controls = kabylake_controls, 568 .num_controls = ARRAY_SIZE(kabylake_controls), 569 .dapm_widgets = kabylake_widgets, 570 .num_dapm_widgets = ARRAY_SIZE(kabylake_widgets), 571 .dapm_routes = kabylake_map, 572 .num_dapm_routes = ARRAY_SIZE(kabylake_map), 573 .fully_routed = true, 574 .late_probe = kabylake_card_late_probe, 575 }; 576 577 static int kabylake_audio_probe(struct platform_device *pdev) 578 { 579 struct kbl_codec_private *ctx; 580 581 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 582 if (!ctx) 583 return -ENOMEM; 584 585 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 586 587 kabylake_audio_card = 588 (struct snd_soc_card *)pdev->id_entry->driver_data; 589 590 kabylake_audio_card->dev = &pdev->dev; 591 snd_soc_card_set_drvdata(kabylake_audio_card, ctx); 592 return devm_snd_soc_register_card(&pdev->dev, kabylake_audio_card); 593 } 594 595 static const struct platform_device_id kbl_board_ids[] = { 596 { 597 .name = "kbl_da7219_max98357a", 598 .driver_data = 599 (kernel_ulong_t)&kabylake_audio_card_da7219_m98357a, 600 }, 601 { } 602 }; 603 604 static struct platform_driver kabylake_audio = { 605 .probe = kabylake_audio_probe, 606 .driver = { 607 .name = "kbl_da7219_max98357a", 608 .pm = &snd_soc_pm_ops, 609 }, 610 .id_table = kbl_board_ids, 611 }; 612 613 module_platform_driver(kabylake_audio) 614 615 /* Module information */ 616 MODULE_DESCRIPTION("Audio Machine driver-DA7219 & MAX98357A in I2S mode"); 617 MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>"); 618 MODULE_LICENSE("GPL v2"); 619 MODULE_ALIAS("platform:kbl_da7219_max98357a"); 620