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 <sound/soc-acpi.h> 20 #include "../skylake/skl.h" 21 #include "../../codecs/rt5682.h" 22 #include "../../codecs/hdac_hdmi.h" 23 24 /* The platform clock outputs 19.2Mhz clock to codec as I2S MCLK */ 25 #define GLK_PLAT_CLK_FREQ 19200000 26 #define RT5682_PLL_FREQ (48000 * 512) 27 #define GLK_REALTEK_CODEC_DAI "rt5682-aif1" 28 #define GLK_MAXIM_CODEC_DAI "HiFi" 29 #define MAXIM_DEV0_NAME "MX98357A:00" 30 #define DUAL_CHANNEL 2 31 #define QUAD_CHANNEL 4 32 #define NAME_SIZE 32 33 34 static struct snd_soc_jack geminilake_hdmi[3]; 35 36 struct glk_hdmi_pcm { 37 struct list_head head; 38 struct snd_soc_dai *codec_dai; 39 int device; 40 }; 41 42 struct glk_card_private { 43 struct snd_soc_jack geminilake_headset; 44 struct list_head hdmi_pcm_list; 45 }; 46 47 enum { 48 GLK_DPCM_AUDIO_PB = 0, 49 GLK_DPCM_AUDIO_CP, 50 GLK_DPCM_AUDIO_HS_PB, 51 GLK_DPCM_AUDIO_ECHO_REF_CP, 52 GLK_DPCM_AUDIO_REF_CP, 53 GLK_DPCM_AUDIO_DMIC_CP, 54 GLK_DPCM_AUDIO_HDMI1_PB, 55 GLK_DPCM_AUDIO_HDMI2_PB, 56 GLK_DPCM_AUDIO_HDMI3_PB, 57 }; 58 59 static const struct snd_kcontrol_new geminilake_controls[] = { 60 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 61 SOC_DAPM_PIN_SWITCH("Headset Mic"), 62 SOC_DAPM_PIN_SWITCH("Spk"), 63 }; 64 65 static const struct snd_soc_dapm_widget geminilake_widgets[] = { 66 SND_SOC_DAPM_HP("Headphone Jack", NULL), 67 SND_SOC_DAPM_MIC("Headset Mic", NULL), 68 SND_SOC_DAPM_SPK("Spk", NULL), 69 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 70 SND_SOC_DAPM_SPK("HDMI1", NULL), 71 SND_SOC_DAPM_SPK("HDMI2", NULL), 72 SND_SOC_DAPM_SPK("HDMI3", NULL), 73 }; 74 75 static const struct snd_soc_dapm_route geminilake_map[] = { 76 /* HP jack connectors - unknown if we have jack detection */ 77 { "Headphone Jack", NULL, "HPOL" }, 78 { "Headphone Jack", NULL, "HPOR" }, 79 80 /* speaker */ 81 { "Spk", NULL, "Speaker" }, 82 83 /* other jacks */ 84 { "IN1P", NULL, "Headset Mic" }, 85 86 /* digital mics */ 87 { "DMic", NULL, "SoC DMIC" }, 88 89 /* CODEC BE connections */ 90 { "HiFi Playback", NULL, "ssp1 Tx" }, 91 { "ssp1 Tx", NULL, "codec0_out" }, 92 93 { "AIF1 Playback", NULL, "ssp2 Tx" }, 94 { "ssp2 Tx", NULL, "codec1_out" }, 95 96 { "codec0_in", NULL, "ssp2 Rx" }, 97 { "ssp2 Rx", NULL, "AIF1 Capture" }, 98 99 { "HDMI1", NULL, "hif5-0 Output" }, 100 { "HDMI2", NULL, "hif6-0 Output" }, 101 { "HDMI2", NULL, "hif7-0 Output" }, 102 103 { "hifi3", NULL, "iDisp3 Tx" }, 104 { "iDisp3 Tx", NULL, "iDisp3_out" }, 105 { "hifi2", NULL, "iDisp2 Tx" }, 106 { "iDisp2 Tx", NULL, "iDisp2_out" }, 107 { "hifi1", NULL, "iDisp1 Tx" }, 108 { "iDisp1 Tx", NULL, "iDisp1_out" }, 109 110 /* DMIC */ 111 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 112 { "DMIC01 Rx", NULL, "DMIC AIF" }, 113 }; 114 115 static int geminilake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, 116 struct snd_pcm_hw_params *params) 117 { 118 struct snd_interval *rate = hw_param_interval(params, 119 SNDRV_PCM_HW_PARAM_RATE); 120 struct snd_interval *channels = hw_param_interval(params, 121 SNDRV_PCM_HW_PARAM_CHANNELS); 122 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 123 124 /* The ADSP will convert the FE rate to 48k, stereo */ 125 rate->min = rate->max = 48000; 126 channels->min = channels->max = DUAL_CHANNEL; 127 128 /* set SSP to 24 bit */ 129 snd_mask_none(fmt); 130 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 131 132 return 0; 133 } 134 135 static int geminilake_rt5682_codec_init(struct snd_soc_pcm_runtime *rtd) 136 { 137 struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 138 struct snd_soc_component *component = rtd->codec_dai->component; 139 struct snd_soc_dai *codec_dai = rtd->codec_dai; 140 struct snd_soc_jack *jack; 141 int ret; 142 143 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK, 144 GLK_PLAT_CLK_FREQ, RT5682_PLL_FREQ); 145 if (ret < 0) { 146 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 147 return ret; 148 } 149 150 /* Configure sysclk for codec */ 151 ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, 152 RT5682_PLL_FREQ, SND_SOC_CLOCK_IN); 153 if (ret < 0) 154 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); 155 156 /* 157 * Headset buttons map to the google Reference headset. 158 * These can be configured by userspace. 159 */ 160 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", 161 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 162 SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT, 163 &ctx->geminilake_headset, NULL, 0); 164 if (ret) { 165 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); 166 return ret; 167 } 168 169 jack = &ctx->geminilake_headset; 170 171 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 172 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 173 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 174 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 175 ret = snd_soc_component_set_jack(component, jack, NULL); 176 177 if (ret) { 178 dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret); 179 return ret; 180 } 181 182 return ret; 183 }; 184 185 static int geminilake_rt5682_hw_params(struct snd_pcm_substream *substream, 186 struct snd_pcm_hw_params *params) 187 { 188 struct snd_soc_pcm_runtime *rtd = substream->private_data; 189 struct snd_soc_dai *codec_dai = rtd->codec_dai; 190 int ret; 191 192 /* Set valid bitmask & configuration for I2S in 24 bit */ 193 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, 24); 194 if (ret < 0) { 195 dev_err(rtd->dev, "set TDM slot err:%d\n", ret); 196 return ret; 197 } 198 199 return ret; 200 } 201 202 static struct snd_soc_ops geminilake_rt5682_ops = { 203 .hw_params = geminilake_rt5682_hw_params, 204 }; 205 206 static int geminilake_hdmi_init(struct snd_soc_pcm_runtime *rtd) 207 { 208 struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 209 struct snd_soc_dai *dai = rtd->codec_dai; 210 struct glk_hdmi_pcm *pcm; 211 212 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 213 if (!pcm) 214 return -ENOMEM; 215 216 pcm->device = GLK_DPCM_AUDIO_HDMI1_PB + dai->id; 217 pcm->codec_dai = dai; 218 219 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 220 221 return 0; 222 } 223 224 static int geminilake_rt5682_fe_init(struct snd_soc_pcm_runtime *rtd) 225 { 226 struct snd_soc_component *component = rtd->cpu_dai->component; 227 struct snd_soc_dapm_context *dapm; 228 int ret; 229 230 dapm = snd_soc_component_get_dapm(component); 231 ret = snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 232 if (ret) { 233 dev_err(rtd->dev, "Ref Cap ignore suspend failed %d\n", ret); 234 return ret; 235 } 236 237 return ret; 238 } 239 240 static const unsigned int rates[] = { 241 48000, 242 }; 243 244 static const struct snd_pcm_hw_constraint_list constraints_rates = { 245 .count = ARRAY_SIZE(rates), 246 .list = rates, 247 .mask = 0, 248 }; 249 250 static const unsigned int channels[] = { 251 DUAL_CHANNEL, 252 }; 253 254 static const struct snd_pcm_hw_constraint_list constraints_channels = { 255 .count = ARRAY_SIZE(channels), 256 .list = channels, 257 .mask = 0, 258 }; 259 260 static unsigned int channels_quad[] = { 261 QUAD_CHANNEL, 262 }; 263 264 static struct snd_pcm_hw_constraint_list constraints_channels_quad = { 265 .count = ARRAY_SIZE(channels_quad), 266 .list = channels_quad, 267 .mask = 0, 268 }; 269 270 static int geminilake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 271 struct snd_pcm_hw_params *params) 272 { 273 struct snd_interval *channels = hw_param_interval(params, 274 SNDRV_PCM_HW_PARAM_CHANNELS); 275 276 /* 277 * set BE channel constraint as user FE channels 278 */ 279 channels->min = channels->max = 4; 280 281 return 0; 282 } 283 284 static int geminilake_dmic_startup(struct snd_pcm_substream *substream) 285 { 286 struct snd_pcm_runtime *runtime = substream->runtime; 287 288 runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL; 289 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 290 &constraints_channels_quad); 291 292 return snd_pcm_hw_constraint_list(substream->runtime, 0, 293 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 294 } 295 296 static const struct snd_soc_ops geminilake_dmic_ops = { 297 .startup = geminilake_dmic_startup, 298 }; 299 300 static const unsigned int rates_16000[] = { 301 16000, 302 }; 303 304 static const struct snd_pcm_hw_constraint_list constraints_16000 = { 305 .count = ARRAY_SIZE(rates_16000), 306 .list = rates_16000, 307 }; 308 309 static int geminilake_refcap_startup(struct snd_pcm_substream *substream) 310 { 311 return snd_pcm_hw_constraint_list(substream->runtime, 0, 312 SNDRV_PCM_HW_PARAM_RATE, 313 &constraints_16000); 314 }; 315 316 static const struct snd_soc_ops geminilake_refcap_ops = { 317 .startup = geminilake_refcap_startup, 318 }; 319 320 /* geminilake digital audio interface glue - connects codec <--> CPU */ 321 static struct snd_soc_dai_link geminilake_dais[] = { 322 /* Front End DAI links */ 323 [GLK_DPCM_AUDIO_PB] = { 324 .name = "Glk Audio Port", 325 .stream_name = "Audio", 326 .cpu_dai_name = "System Pin", 327 .platform_name = "0000:00:0e.0", 328 .dynamic = 1, 329 .codec_name = "snd-soc-dummy", 330 .codec_dai_name = "snd-soc-dummy-dai", 331 .nonatomic = 1, 332 .init = geminilake_rt5682_fe_init, 333 .trigger = { 334 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 335 .dpcm_playback = 1, 336 }, 337 [GLK_DPCM_AUDIO_CP] = { 338 .name = "Glk Audio Capture Port", 339 .stream_name = "Audio Record", 340 .cpu_dai_name = "System Pin", 341 .platform_name = "0000:00:0e.0", 342 .dynamic = 1, 343 .codec_name = "snd-soc-dummy", 344 .codec_dai_name = "snd-soc-dummy-dai", 345 .nonatomic = 1, 346 .trigger = { 347 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 348 .dpcm_capture = 1, 349 }, 350 [GLK_DPCM_AUDIO_HS_PB] = { 351 .name = "Glk Audio Headset Playback", 352 .stream_name = "Headset Audio", 353 .cpu_dai_name = "System Pin2", 354 .platform_name = "0000:00:0e.0", 355 .codec_name = "snd-soc-dummy", 356 .codec_dai_name = "snd-soc-dummy-dai", 357 .dpcm_playback = 1, 358 .nonatomic = 1, 359 .dynamic = 1, 360 }, 361 [GLK_DPCM_AUDIO_ECHO_REF_CP] = { 362 .name = "Glk Audio Echo Reference cap", 363 .stream_name = "Echoreference Capture", 364 .cpu_dai_name = "Echoref Pin", 365 .platform_name = "0000:00:0e.0", 366 .codec_name = "snd-soc-dummy", 367 .codec_dai_name = "snd-soc-dummy-dai", 368 .init = NULL, 369 .capture_only = 1, 370 .nonatomic = 1, 371 }, 372 [GLK_DPCM_AUDIO_REF_CP] = { 373 .name = "Glk Audio Reference cap", 374 .stream_name = "Refcap", 375 .cpu_dai_name = "Reference Pin", 376 .codec_name = "snd-soc-dummy", 377 .codec_dai_name = "snd-soc-dummy-dai", 378 .platform_name = "0000:00:0e.0", 379 .init = NULL, 380 .dpcm_capture = 1, 381 .nonatomic = 1, 382 .dynamic = 1, 383 .ops = &geminilake_refcap_ops, 384 }, 385 [GLK_DPCM_AUDIO_DMIC_CP] = { 386 .name = "Glk Audio DMIC cap", 387 .stream_name = "dmiccap", 388 .cpu_dai_name = "DMIC Pin", 389 .codec_name = "snd-soc-dummy", 390 .codec_dai_name = "snd-soc-dummy-dai", 391 .platform_name = "0000:00:0e.0", 392 .init = NULL, 393 .dpcm_capture = 1, 394 .nonatomic = 1, 395 .dynamic = 1, 396 .ops = &geminilake_dmic_ops, 397 }, 398 [GLK_DPCM_AUDIO_HDMI1_PB] = { 399 .name = "Glk HDMI Port1", 400 .stream_name = "Hdmi1", 401 .cpu_dai_name = "HDMI1 Pin", 402 .codec_name = "snd-soc-dummy", 403 .codec_dai_name = "snd-soc-dummy-dai", 404 .platform_name = "0000:00:0e.0", 405 .dpcm_playback = 1, 406 .init = NULL, 407 .trigger = { 408 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 409 .nonatomic = 1, 410 .dynamic = 1, 411 }, 412 [GLK_DPCM_AUDIO_HDMI2_PB] = { 413 .name = "Glk HDMI Port2", 414 .stream_name = "Hdmi2", 415 .cpu_dai_name = "HDMI2 Pin", 416 .codec_name = "snd-soc-dummy", 417 .codec_dai_name = "snd-soc-dummy-dai", 418 .platform_name = "0000:00:0e.0", 419 .dpcm_playback = 1, 420 .init = NULL, 421 .trigger = { 422 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 423 .nonatomic = 1, 424 .dynamic = 1, 425 }, 426 [GLK_DPCM_AUDIO_HDMI3_PB] = { 427 .name = "Glk HDMI Port3", 428 .stream_name = "Hdmi3", 429 .cpu_dai_name = "HDMI3 Pin", 430 .codec_name = "snd-soc-dummy", 431 .codec_dai_name = "snd-soc-dummy-dai", 432 .platform_name = "0000:00:0e.0", 433 .trigger = { 434 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 435 .dpcm_playback = 1, 436 .init = NULL, 437 .nonatomic = 1, 438 .dynamic = 1, 439 }, 440 /* Back End DAI links */ 441 { 442 /* SSP1 - Codec */ 443 .name = "SSP1-Codec", 444 .id = 0, 445 .cpu_dai_name = "SSP1 Pin", 446 .platform_name = "0000:00:0e.0", 447 .no_pcm = 1, 448 .codec_name = MAXIM_DEV0_NAME, 449 .codec_dai_name = GLK_MAXIM_CODEC_DAI, 450 .dai_fmt = SND_SOC_DAIFMT_I2S | 451 SND_SOC_DAIFMT_NB_NF | 452 SND_SOC_DAIFMT_CBS_CFS, 453 .ignore_pmdown_time = 1, 454 .be_hw_params_fixup = geminilake_ssp_fixup, 455 .dpcm_playback = 1, 456 }, 457 { 458 /* SSP2 - Codec */ 459 .name = "SSP2-Codec", 460 .id = 1, 461 .cpu_dai_name = "SSP2 Pin", 462 .platform_name = "0000:00:0e.0", 463 .no_pcm = 1, 464 .codec_name = "i2c-10EC5682:00", 465 .codec_dai_name = GLK_REALTEK_CODEC_DAI, 466 .init = geminilake_rt5682_codec_init, 467 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 468 SND_SOC_DAIFMT_CBS_CFS, 469 .ignore_pmdown_time = 1, 470 .be_hw_params_fixup = geminilake_ssp_fixup, 471 .ops = &geminilake_rt5682_ops, 472 .dpcm_playback = 1, 473 .dpcm_capture = 1, 474 }, 475 { 476 .name = "dmic01", 477 .id = 2, 478 .cpu_dai_name = "DMIC01 Pin", 479 .codec_name = "dmic-codec", 480 .codec_dai_name = "dmic-hifi", 481 .platform_name = "0000:00:0e.0", 482 .ignore_suspend = 1, 483 .be_hw_params_fixup = geminilake_dmic_fixup, 484 .dpcm_capture = 1, 485 .no_pcm = 1, 486 }, 487 { 488 .name = "iDisp1", 489 .id = 3, 490 .cpu_dai_name = "iDisp1 Pin", 491 .codec_name = "ehdaudio0D2", 492 .codec_dai_name = "intel-hdmi-hifi1", 493 .platform_name = "0000:00:0e.0", 494 .init = geminilake_hdmi_init, 495 .dpcm_playback = 1, 496 .no_pcm = 1, 497 }, 498 { 499 .name = "iDisp2", 500 .id = 4, 501 .cpu_dai_name = "iDisp2 Pin", 502 .codec_name = "ehdaudio0D2", 503 .codec_dai_name = "intel-hdmi-hifi2", 504 .platform_name = "0000:00:0e.0", 505 .init = geminilake_hdmi_init, 506 .dpcm_playback = 1, 507 .no_pcm = 1, 508 }, 509 { 510 .name = "iDisp3", 511 .id = 5, 512 .cpu_dai_name = "iDisp3 Pin", 513 .codec_name = "ehdaudio0D2", 514 .codec_dai_name = "intel-hdmi-hifi3", 515 .platform_name = "0000:00:0e.0", 516 .init = geminilake_hdmi_init, 517 .dpcm_playback = 1, 518 .no_pcm = 1, 519 }, 520 }; 521 522 static int glk_card_late_probe(struct snd_soc_card *card) 523 { 524 struct glk_card_private *ctx = snd_soc_card_get_drvdata(card); 525 struct snd_soc_component *component = NULL; 526 char jack_name[NAME_SIZE]; 527 struct glk_hdmi_pcm *pcm; 528 int err = 0; 529 int i = 0; 530 531 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 532 component = pcm->codec_dai->component; 533 snprintf(jack_name, sizeof(jack_name), 534 "HDMI/DP, pcm=%d Jack", pcm->device); 535 err = snd_soc_card_jack_new(card, jack_name, 536 SND_JACK_AVOUT, &geminilake_hdmi[i], 537 NULL, 0); 538 539 if (err) 540 return err; 541 542 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, 543 &geminilake_hdmi[i]); 544 if (err < 0) 545 return err; 546 547 i++; 548 } 549 550 if (!component) 551 return -EINVAL; 552 553 return hdac_hdmi_jack_port_init(component, &card->dapm); 554 } 555 556 /* geminilake audio machine driver for SPT + RT5682 */ 557 static struct snd_soc_card glk_audio_card_rt5682_m98357a = { 558 .name = "glkrt5682max", 559 .owner = THIS_MODULE, 560 .dai_link = geminilake_dais, 561 .num_links = ARRAY_SIZE(geminilake_dais), 562 .controls = geminilake_controls, 563 .num_controls = ARRAY_SIZE(geminilake_controls), 564 .dapm_widgets = geminilake_widgets, 565 .num_dapm_widgets = ARRAY_SIZE(geminilake_widgets), 566 .dapm_routes = geminilake_map, 567 .num_dapm_routes = ARRAY_SIZE(geminilake_map), 568 .fully_routed = true, 569 .late_probe = glk_card_late_probe, 570 }; 571 572 static int geminilake_audio_probe(struct platform_device *pdev) 573 { 574 struct glk_card_private *ctx; 575 struct snd_soc_acpi_mach *mach; 576 const char *platform_name; 577 struct snd_soc_card *card; 578 int ret; 579 580 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 581 if (!ctx) 582 return -ENOMEM; 583 584 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 585 586 card = &glk_audio_card_rt5682_m98357a; 587 card->dev = &pdev->dev; 588 snd_soc_card_set_drvdata(card, ctx); 589 590 /* override plaform name, if required */ 591 mach = (&pdev->dev)->platform_data; 592 platform_name = mach->mach_params.platform; 593 594 ret = snd_soc_fixup_dai_links_platform_name(card, platform_name); 595 if (ret) 596 return ret; 597 598 return devm_snd_soc_register_card(&pdev->dev, card); 599 } 600 601 static const struct platform_device_id glk_board_ids[] = { 602 { 603 .name = "glk_rt5682_max98357a", 604 .driver_data = 605 (kernel_ulong_t)&glk_audio_card_rt5682_m98357a, 606 }, 607 { } 608 }; 609 610 static struct platform_driver geminilake_audio = { 611 .probe = geminilake_audio_probe, 612 .driver = { 613 .name = "glk_rt5682_max98357a", 614 .pm = &snd_soc_pm_ops, 615 }, 616 .id_table = glk_board_ids, 617 }; 618 module_platform_driver(geminilake_audio) 619 620 /* Module information */ 621 MODULE_DESCRIPTION("Geminilake Audio Machine driver-RT5682 & MAX98357A in I2S mode"); 622 MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>"); 623 MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>"); 624 MODULE_LICENSE("GPL v2"); 625 MODULE_ALIAS("platform:glk_rt5682_max98357a"); 626