1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright(c) 2018 Intel Corporation. 3 4 /* 5 * Intel Geminilake I2S Machine Driver with MAX98357A & RT5682 Codecs 6 * 7 * Modified from: 8 * Intel Apollolake I2S Machine driver 9 */ 10 11 #include <linux/input.h> 12 #include <linux/module.h> 13 #include <linux/platform_device.h> 14 #include <sound/core.h> 15 #include <sound/jack.h> 16 #include <sound/pcm.h> 17 #include <sound/pcm_params.h> 18 #include <sound/soc.h> 19 #include "../skylake/skl.h" 20 #include "../../codecs/rt5682.h" 21 #include "../../codecs/hdac_hdmi.h" 22 23 /* The platform clock outputs 19.2Mhz clock to codec as I2S MCLK */ 24 #define GLK_PLAT_CLK_FREQ 19200000 25 #define RT5682_PLL_FREQ (48000 * 512) 26 #define GLK_REALTEK_CODEC_DAI "rt5682-aif1" 27 #define GLK_MAXIM_CODEC_DAI "HiFi" 28 #define MAXIM_DEV0_NAME "MX98357A:00" 29 #define DUAL_CHANNEL 2 30 #define QUAD_CHANNEL 4 31 #define NAME_SIZE 32 32 33 static struct snd_soc_jack geminilake_hdmi[3]; 34 35 struct glk_hdmi_pcm { 36 struct list_head head; 37 struct snd_soc_dai *codec_dai; 38 int device; 39 }; 40 41 struct glk_card_private { 42 struct snd_soc_jack geminilake_headset; 43 struct list_head hdmi_pcm_list; 44 }; 45 46 enum { 47 GLK_DPCM_AUDIO_PB = 0, 48 GLK_DPCM_AUDIO_CP, 49 GLK_DPCM_AUDIO_HS_PB, 50 GLK_DPCM_AUDIO_ECHO_REF_CP, 51 GLK_DPCM_AUDIO_REF_CP, 52 GLK_DPCM_AUDIO_DMIC_CP, 53 GLK_DPCM_AUDIO_HDMI1_PB, 54 GLK_DPCM_AUDIO_HDMI2_PB, 55 GLK_DPCM_AUDIO_HDMI3_PB, 56 }; 57 58 static const struct snd_kcontrol_new geminilake_controls[] = { 59 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 60 SOC_DAPM_PIN_SWITCH("Headset Mic"), 61 SOC_DAPM_PIN_SWITCH("Spk"), 62 }; 63 64 static const struct snd_soc_dapm_widget geminilake_widgets[] = { 65 SND_SOC_DAPM_HP("Headphone Jack", NULL), 66 SND_SOC_DAPM_MIC("Headset Mic", NULL), 67 SND_SOC_DAPM_SPK("Spk", NULL), 68 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 69 SND_SOC_DAPM_SPK("HDMI1", NULL), 70 SND_SOC_DAPM_SPK("HDMI2", NULL), 71 SND_SOC_DAPM_SPK("HDMI3", NULL), 72 }; 73 74 static const struct snd_soc_dapm_route geminilake_map[] = { 75 /* HP jack connectors - unknown if we have jack detection */ 76 { "Headphone Jack", NULL, "HPOL" }, 77 { "Headphone Jack", NULL, "HPOR" }, 78 79 /* speaker */ 80 { "Spk", NULL, "Speaker" }, 81 82 /* other jacks */ 83 { "IN1P", NULL, "Headset Mic" }, 84 85 /* digital mics */ 86 { "DMic", NULL, "SoC DMIC" }, 87 88 /* CODEC BE connections */ 89 { "HiFi Playback", NULL, "ssp1 Tx" }, 90 { "ssp1 Tx", NULL, "codec0_out" }, 91 92 { "AIF1 Playback", NULL, "ssp2 Tx" }, 93 { "ssp2 Tx", NULL, "codec1_out" }, 94 95 { "codec0_in", NULL, "ssp2 Rx" }, 96 { "ssp2 Rx", NULL, "AIF1 Capture" }, 97 98 { "HDMI1", NULL, "hif5-0 Output" }, 99 { "HDMI2", NULL, "hif6-0 Output" }, 100 { "HDMI2", NULL, "hif7-0 Output" }, 101 102 { "hifi3", NULL, "iDisp3 Tx" }, 103 { "iDisp3 Tx", NULL, "iDisp3_out" }, 104 { "hifi2", NULL, "iDisp2 Tx" }, 105 { "iDisp2 Tx", NULL, "iDisp2_out" }, 106 { "hifi1", NULL, "iDisp1 Tx" }, 107 { "iDisp1 Tx", NULL, "iDisp1_out" }, 108 109 /* DMIC */ 110 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 111 { "DMIC01 Rx", NULL, "DMIC AIF" }, 112 }; 113 114 static int geminilake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, 115 struct snd_pcm_hw_params *params) 116 { 117 struct snd_interval *rate = hw_param_interval(params, 118 SNDRV_PCM_HW_PARAM_RATE); 119 struct snd_interval *channels = hw_param_interval(params, 120 SNDRV_PCM_HW_PARAM_CHANNELS); 121 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 122 123 /* The ADSP will convert the FE rate to 48k, stereo */ 124 rate->min = rate->max = 48000; 125 channels->min = channels->max = DUAL_CHANNEL; 126 127 /* set SSP to 24 bit */ 128 snd_mask_none(fmt); 129 snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE); 130 131 return 0; 132 } 133 134 static int geminilake_rt5682_codec_init(struct snd_soc_pcm_runtime *rtd) 135 { 136 struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 137 struct snd_soc_component *component = rtd->codec_dai->component; 138 struct snd_soc_dai *codec_dai = rtd->codec_dai; 139 struct snd_soc_jack *jack; 140 int ret; 141 142 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK, 143 GLK_PLAT_CLK_FREQ, RT5682_PLL_FREQ); 144 if (ret < 0) { 145 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 146 return ret; 147 } 148 149 /* Configure sysclk for codec */ 150 ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, 151 RT5682_PLL_FREQ, SND_SOC_CLOCK_IN); 152 if (ret < 0) 153 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); 154 155 /* 156 * Headset buttons map to the google Reference headset. 157 * These can be configured by userspace. 158 */ 159 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", 160 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 161 SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT, 162 &ctx->geminilake_headset, NULL, 0); 163 if (ret) { 164 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); 165 return ret; 166 } 167 168 jack = &ctx->geminilake_headset; 169 170 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 171 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 172 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 173 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 174 ret = snd_soc_component_set_jack(component, jack, NULL); 175 176 if (ret) { 177 dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret); 178 return ret; 179 } 180 181 return ret; 182 }; 183 184 static int geminilake_rt5682_hw_params(struct snd_pcm_substream *substream, 185 struct snd_pcm_hw_params *params) 186 { 187 struct snd_soc_pcm_runtime *rtd = substream->private_data; 188 struct snd_soc_dai *codec_dai = rtd->codec_dai; 189 int ret; 190 191 /* Set valid bitmask & configuration for I2S in 24 bit */ 192 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, 24); 193 if (ret < 0) { 194 dev_err(rtd->dev, "set TDM slot err:%d\n", ret); 195 return ret; 196 } 197 198 return ret; 199 } 200 201 static struct snd_soc_ops geminilake_rt5682_ops = { 202 .hw_params = geminilake_rt5682_hw_params, 203 }; 204 205 static int geminilake_hdmi_init(struct snd_soc_pcm_runtime *rtd) 206 { 207 struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 208 struct snd_soc_dai *dai = rtd->codec_dai; 209 struct glk_hdmi_pcm *pcm; 210 211 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 212 if (!pcm) 213 return -ENOMEM; 214 215 pcm->device = GLK_DPCM_AUDIO_HDMI1_PB + dai->id; 216 pcm->codec_dai = dai; 217 218 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 219 220 return 0; 221 } 222 223 static int geminilake_rt5682_fe_init(struct snd_soc_pcm_runtime *rtd) 224 { 225 struct snd_soc_component *component = rtd->cpu_dai->component; 226 struct snd_soc_dapm_context *dapm; 227 int ret; 228 229 dapm = snd_soc_component_get_dapm(component); 230 ret = snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 231 if (ret) { 232 dev_err(rtd->dev, "Ref Cap ignore suspend failed %d\n", ret); 233 return ret; 234 } 235 236 return ret; 237 } 238 239 static const unsigned int rates[] = { 240 48000, 241 }; 242 243 static const struct snd_pcm_hw_constraint_list constraints_rates = { 244 .count = ARRAY_SIZE(rates), 245 .list = rates, 246 .mask = 0, 247 }; 248 249 static const unsigned int channels[] = { 250 DUAL_CHANNEL, 251 }; 252 253 static const struct snd_pcm_hw_constraint_list constraints_channels = { 254 .count = ARRAY_SIZE(channels), 255 .list = channels, 256 .mask = 0, 257 }; 258 259 static unsigned int channels_quad[] = { 260 QUAD_CHANNEL, 261 }; 262 263 static struct snd_pcm_hw_constraint_list constraints_channels_quad = { 264 .count = ARRAY_SIZE(channels_quad), 265 .list = channels_quad, 266 .mask = 0, 267 }; 268 269 static int geminilake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 270 struct snd_pcm_hw_params *params) 271 { 272 struct snd_interval *channels = hw_param_interval(params, 273 SNDRV_PCM_HW_PARAM_CHANNELS); 274 275 /* 276 * set BE channel constraint as user FE channels 277 */ 278 channels->min = channels->max = 4; 279 280 return 0; 281 } 282 283 static int geminilake_dmic_startup(struct snd_pcm_substream *substream) 284 { 285 struct snd_pcm_runtime *runtime = substream->runtime; 286 287 runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL; 288 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 289 &constraints_channels_quad); 290 291 return snd_pcm_hw_constraint_list(substream->runtime, 0, 292 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 293 } 294 295 static const struct snd_soc_ops geminilake_dmic_ops = { 296 .startup = geminilake_dmic_startup, 297 }; 298 299 static const unsigned int rates_16000[] = { 300 16000, 301 }; 302 303 static const struct snd_pcm_hw_constraint_list constraints_16000 = { 304 .count = ARRAY_SIZE(rates_16000), 305 .list = rates_16000, 306 }; 307 308 static int geminilake_refcap_startup(struct snd_pcm_substream *substream) 309 { 310 return snd_pcm_hw_constraint_list(substream->runtime, 0, 311 SNDRV_PCM_HW_PARAM_RATE, 312 &constraints_16000); 313 }; 314 315 static const struct snd_soc_ops geminilake_refcap_ops = { 316 .startup = geminilake_refcap_startup, 317 }; 318 319 /* geminilake digital audio interface glue - connects codec <--> CPU */ 320 static struct snd_soc_dai_link geminilake_dais[] = { 321 /* Front End DAI links */ 322 [GLK_DPCM_AUDIO_PB] = { 323 .name = "Glk Audio Port", 324 .stream_name = "Audio", 325 .cpu_dai_name = "System Pin", 326 .platform_name = "0000:00:0e.0", 327 .dynamic = 1, 328 .codec_name = "snd-soc-dummy", 329 .codec_dai_name = "snd-soc-dummy-dai", 330 .nonatomic = 1, 331 .init = geminilake_rt5682_fe_init, 332 .trigger = { 333 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 334 .dpcm_playback = 1, 335 }, 336 [GLK_DPCM_AUDIO_CP] = { 337 .name = "Glk Audio Capture Port", 338 .stream_name = "Audio Record", 339 .cpu_dai_name = "System Pin", 340 .platform_name = "0000:00:0e.0", 341 .dynamic = 1, 342 .codec_name = "snd-soc-dummy", 343 .codec_dai_name = "snd-soc-dummy-dai", 344 .nonatomic = 1, 345 .trigger = { 346 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 347 .dpcm_capture = 1, 348 }, 349 [GLK_DPCM_AUDIO_HS_PB] = { 350 .name = "Glk Audio Headset Playback", 351 .stream_name = "Headset Audio", 352 .cpu_dai_name = "System Pin2", 353 .platform_name = "0000:00:0e.0", 354 .codec_name = "snd-soc-dummy", 355 .codec_dai_name = "snd-soc-dummy-dai", 356 .dpcm_playback = 1, 357 .nonatomic = 1, 358 .dynamic = 1, 359 }, 360 [GLK_DPCM_AUDIO_ECHO_REF_CP] = { 361 .name = "Glk Audio Echo Reference cap", 362 .stream_name = "Echoreference Capture", 363 .cpu_dai_name = "Echoref Pin", 364 .platform_name = "0000:00:0e.0", 365 .codec_name = "snd-soc-dummy", 366 .codec_dai_name = "snd-soc-dummy-dai", 367 .init = NULL, 368 .capture_only = 1, 369 .nonatomic = 1, 370 }, 371 [GLK_DPCM_AUDIO_REF_CP] = { 372 .name = "Glk Audio Reference cap", 373 .stream_name = "Refcap", 374 .cpu_dai_name = "Reference Pin", 375 .codec_name = "snd-soc-dummy", 376 .codec_dai_name = "snd-soc-dummy-dai", 377 .platform_name = "0000:00:0e.0", 378 .init = NULL, 379 .dpcm_capture = 1, 380 .nonatomic = 1, 381 .dynamic = 1, 382 .ops = &geminilake_refcap_ops, 383 }, 384 [GLK_DPCM_AUDIO_DMIC_CP] = { 385 .name = "Glk Audio DMIC cap", 386 .stream_name = "dmiccap", 387 .cpu_dai_name = "DMIC Pin", 388 .codec_name = "snd-soc-dummy", 389 .codec_dai_name = "snd-soc-dummy-dai", 390 .platform_name = "0000:00:0e.0", 391 .init = NULL, 392 .dpcm_capture = 1, 393 .nonatomic = 1, 394 .dynamic = 1, 395 .ops = &geminilake_dmic_ops, 396 }, 397 [GLK_DPCM_AUDIO_HDMI1_PB] = { 398 .name = "Glk HDMI Port1", 399 .stream_name = "Hdmi1", 400 .cpu_dai_name = "HDMI1 Pin", 401 .codec_name = "snd-soc-dummy", 402 .codec_dai_name = "snd-soc-dummy-dai", 403 .platform_name = "0000:00:0e.0", 404 .dpcm_playback = 1, 405 .init = NULL, 406 .trigger = { 407 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 408 .nonatomic = 1, 409 .dynamic = 1, 410 }, 411 [GLK_DPCM_AUDIO_HDMI2_PB] = { 412 .name = "Glk HDMI Port2", 413 .stream_name = "Hdmi2", 414 .cpu_dai_name = "HDMI2 Pin", 415 .codec_name = "snd-soc-dummy", 416 .codec_dai_name = "snd-soc-dummy-dai", 417 .platform_name = "0000:00:0e.0", 418 .dpcm_playback = 1, 419 .init = NULL, 420 .trigger = { 421 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 422 .nonatomic = 1, 423 .dynamic = 1, 424 }, 425 [GLK_DPCM_AUDIO_HDMI3_PB] = { 426 .name = "Glk HDMI Port3", 427 .stream_name = "Hdmi3", 428 .cpu_dai_name = "HDMI3 Pin", 429 .codec_name = "snd-soc-dummy", 430 .codec_dai_name = "snd-soc-dummy-dai", 431 .platform_name = "0000:00:0e.0", 432 .trigger = { 433 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 434 .dpcm_playback = 1, 435 .init = NULL, 436 .nonatomic = 1, 437 .dynamic = 1, 438 }, 439 /* Back End DAI links */ 440 { 441 /* SSP1 - Codec */ 442 .name = "SSP1-Codec", 443 .id = 0, 444 .cpu_dai_name = "SSP1 Pin", 445 .platform_name = "0000:00:0e.0", 446 .no_pcm = 1, 447 .codec_name = MAXIM_DEV0_NAME, 448 .codec_dai_name = GLK_MAXIM_CODEC_DAI, 449 .dai_fmt = SND_SOC_DAIFMT_I2S | 450 SND_SOC_DAIFMT_NB_NF | 451 SND_SOC_DAIFMT_CBS_CFS, 452 .ignore_pmdown_time = 1, 453 .be_hw_params_fixup = geminilake_ssp_fixup, 454 .dpcm_playback = 1, 455 }, 456 { 457 /* SSP2 - Codec */ 458 .name = "SSP2-Codec", 459 .id = 1, 460 .cpu_dai_name = "SSP2 Pin", 461 .platform_name = "0000:00:0e.0", 462 .no_pcm = 1, 463 .codec_name = "i2c-10EC5682:00", 464 .codec_dai_name = GLK_REALTEK_CODEC_DAI, 465 .init = geminilake_rt5682_codec_init, 466 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 467 SND_SOC_DAIFMT_CBS_CFS, 468 .ignore_pmdown_time = 1, 469 .be_hw_params_fixup = geminilake_ssp_fixup, 470 .ops = &geminilake_rt5682_ops, 471 .dpcm_playback = 1, 472 .dpcm_capture = 1, 473 }, 474 { 475 .name = "dmic01", 476 .id = 2, 477 .cpu_dai_name = "DMIC01 Pin", 478 .codec_name = "dmic-codec", 479 .codec_dai_name = "dmic-hifi", 480 .platform_name = "0000:00:0e.0", 481 .ignore_suspend = 1, 482 .be_hw_params_fixup = geminilake_dmic_fixup, 483 .dpcm_capture = 1, 484 .no_pcm = 1, 485 }, 486 { 487 .name = "iDisp1", 488 .id = 3, 489 .cpu_dai_name = "iDisp1 Pin", 490 .codec_name = "ehdaudio0D2", 491 .codec_dai_name = "intel-hdmi-hifi1", 492 .platform_name = "0000:00:0e.0", 493 .init = geminilake_hdmi_init, 494 .dpcm_playback = 1, 495 .no_pcm = 1, 496 }, 497 { 498 .name = "iDisp2", 499 .id = 4, 500 .cpu_dai_name = "iDisp2 Pin", 501 .codec_name = "ehdaudio0D2", 502 .codec_dai_name = "intel-hdmi-hifi2", 503 .platform_name = "0000:00:0e.0", 504 .init = geminilake_hdmi_init, 505 .dpcm_playback = 1, 506 .no_pcm = 1, 507 }, 508 { 509 .name = "iDisp3", 510 .id = 5, 511 .cpu_dai_name = "iDisp3 Pin", 512 .codec_name = "ehdaudio0D2", 513 .codec_dai_name = "intel-hdmi-hifi3", 514 .platform_name = "0000:00:0e.0", 515 .init = geminilake_hdmi_init, 516 .dpcm_playback = 1, 517 .no_pcm = 1, 518 }, 519 }; 520 521 static int glk_card_late_probe(struct snd_soc_card *card) 522 { 523 struct glk_card_private *ctx = snd_soc_card_get_drvdata(card); 524 struct snd_soc_component *component = NULL; 525 char jack_name[NAME_SIZE]; 526 struct glk_hdmi_pcm *pcm; 527 int err = 0; 528 int i = 0; 529 530 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 531 component = pcm->codec_dai->component; 532 snprintf(jack_name, sizeof(jack_name), 533 "HDMI/DP, pcm=%d Jack", pcm->device); 534 err = snd_soc_card_jack_new(card, jack_name, 535 SND_JACK_AVOUT, &geminilake_hdmi[i], 536 NULL, 0); 537 538 if (err) 539 return err; 540 541 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, 542 &geminilake_hdmi[i]); 543 if (err < 0) 544 return err; 545 546 i++; 547 } 548 549 if (!component) 550 return -EINVAL; 551 552 return hdac_hdmi_jack_port_init(component, &card->dapm); 553 } 554 555 /* geminilake audio machine driver for SPT + RT5682 */ 556 static struct snd_soc_card glk_audio_card_rt5682_m98357a = { 557 .name = "glkrt5682max", 558 .owner = THIS_MODULE, 559 .dai_link = geminilake_dais, 560 .num_links = ARRAY_SIZE(geminilake_dais), 561 .controls = geminilake_controls, 562 .num_controls = ARRAY_SIZE(geminilake_controls), 563 .dapm_widgets = geminilake_widgets, 564 .num_dapm_widgets = ARRAY_SIZE(geminilake_widgets), 565 .dapm_routes = geminilake_map, 566 .num_dapm_routes = ARRAY_SIZE(geminilake_map), 567 .fully_routed = true, 568 .late_probe = glk_card_late_probe, 569 }; 570 571 static int geminilake_audio_probe(struct platform_device *pdev) 572 { 573 struct glk_card_private *ctx; 574 575 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 576 if (!ctx) 577 return -ENOMEM; 578 579 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 580 581 glk_audio_card_rt5682_m98357a.dev = &pdev->dev; 582 snd_soc_card_set_drvdata(&glk_audio_card_rt5682_m98357a, ctx); 583 584 return devm_snd_soc_register_card(&pdev->dev, 585 &glk_audio_card_rt5682_m98357a); 586 } 587 588 static const struct platform_device_id glk_board_ids[] = { 589 { 590 .name = "glk_rt5682_max98357a", 591 .driver_data = 592 (kernel_ulong_t)&glk_audio_card_rt5682_m98357a, 593 }, 594 { } 595 }; 596 597 static struct platform_driver geminilake_audio = { 598 .probe = geminilake_audio_probe, 599 .driver = { 600 .name = "glk_rt5682_max98357a", 601 .pm = &snd_soc_pm_ops, 602 }, 603 .id_table = glk_board_ids, 604 }; 605 module_platform_driver(geminilake_audio) 606 607 /* Module information */ 608 MODULE_DESCRIPTION("Geminilake Audio Machine driver-RT5682 & MAX98357A in I2S mode"); 609 MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>"); 610 MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>"); 611 MODULE_LICENSE("GPL v2"); 612 MODULE_ALIAS("platform:glk_rt5682_max98357a"); 613