1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * bytcht_es8316.c - ASoc Machine driver for Intel Baytrail/Cherrytrail 4 * platforms with Everest ES8316 SoC 5 * 6 * Copyright (C) 2017 Endless Mobile, Inc. 7 * Authors: David Yang <yangxiaohua@everest-semi.com>, 8 * Daniel Drake <drake@endlessm.com> 9 * 10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 11 * 12 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 13 */ 14 #include <linux/acpi.h> 15 #include <linux/clk.h> 16 #include <linux/device.h> 17 #include <linux/dmi.h> 18 #include <linux/gpio/consumer.h> 19 #include <linux/i2c.h> 20 #include <linux/init.h> 21 #include <linux/input.h> 22 #include <linux/module.h> 23 #include <linux/platform_device.h> 24 #include <linux/slab.h> 25 #include <sound/jack.h> 26 #include <sound/pcm.h> 27 #include <sound/pcm_params.h> 28 #include <sound/soc.h> 29 #include <sound/soc-acpi.h> 30 #include "../atom/sst-atom-controls.h" 31 #include "../common/sst-dsp.h" 32 #include "../common/soc-intel-quirks.h" 33 34 /* jd-inv + terminating entry */ 35 #define MAX_NO_PROPS 2 36 37 struct byt_cht_es8316_private { 38 struct clk *mclk; 39 struct snd_soc_jack jack; 40 struct gpio_desc *speaker_en_gpio; 41 bool speaker_en; 42 }; 43 44 enum { 45 BYT_CHT_ES8316_INTMIC_IN1_MAP, 46 BYT_CHT_ES8316_INTMIC_IN2_MAP, 47 }; 48 49 #define BYT_CHT_ES8316_MAP(quirk) ((quirk) & GENMASK(3, 0)) 50 #define BYT_CHT_ES8316_SSP0 BIT(16) 51 #define BYT_CHT_ES8316_MONO_SPEAKER BIT(17) 52 #define BYT_CHT_ES8316_JD_INVERTED BIT(18) 53 54 static unsigned long quirk; 55 56 static int quirk_override = -1; 57 module_param_named(quirk, quirk_override, int, 0444); 58 MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 59 60 static void log_quirks(struct device *dev) 61 { 62 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN1_MAP) 63 dev_info(dev, "quirk IN1_MAP enabled"); 64 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN2_MAP) 65 dev_info(dev, "quirk IN2_MAP enabled"); 66 if (quirk & BYT_CHT_ES8316_SSP0) 67 dev_info(dev, "quirk SSP0 enabled"); 68 if (quirk & BYT_CHT_ES8316_MONO_SPEAKER) 69 dev_info(dev, "quirk MONO_SPEAKER enabled\n"); 70 if (quirk & BYT_CHT_ES8316_JD_INVERTED) 71 dev_info(dev, "quirk JD_INVERTED enabled\n"); 72 } 73 74 static int byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget *w, 75 struct snd_kcontrol *kcontrol, int event) 76 { 77 struct snd_soc_card *card = w->dapm->card; 78 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); 79 80 if (SND_SOC_DAPM_EVENT_ON(event)) 81 priv->speaker_en = true; 82 else 83 priv->speaker_en = false; 84 85 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en); 86 87 return 0; 88 } 89 90 static const struct snd_soc_dapm_widget byt_cht_es8316_widgets[] = { 91 SND_SOC_DAPM_SPK("Speaker", NULL), 92 SND_SOC_DAPM_HP("Headphone", NULL), 93 SND_SOC_DAPM_MIC("Headset Mic", NULL), 94 SND_SOC_DAPM_MIC("Internal Mic", NULL), 95 96 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0, 97 byt_cht_es8316_speaker_power_event, 98 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 99 }; 100 101 static const struct snd_soc_dapm_route byt_cht_es8316_audio_map[] = { 102 {"Headphone", NULL, "HPOL"}, 103 {"Headphone", NULL, "HPOR"}, 104 105 /* 106 * There is no separate speaker output instead the speakers are muxed to 107 * the HP outputs. The mux is controlled by the "Speaker Power" supply. 108 */ 109 {"Speaker", NULL, "HPOL"}, 110 {"Speaker", NULL, "HPOR"}, 111 {"Speaker", NULL, "Speaker Power"}, 112 }; 113 114 static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in1_map[] = { 115 {"MIC1", NULL, "Internal Mic"}, 116 {"MIC2", NULL, "Headset Mic"}, 117 }; 118 119 static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in2_map[] = { 120 {"MIC2", NULL, "Internal Mic"}, 121 {"MIC1", NULL, "Headset Mic"}, 122 }; 123 124 static const struct snd_soc_dapm_route byt_cht_es8316_ssp0_map[] = { 125 {"Playback", NULL, "ssp0 Tx"}, 126 {"ssp0 Tx", NULL, "modem_out"}, 127 {"modem_in", NULL, "ssp0 Rx"}, 128 {"ssp0 Rx", NULL, "Capture"}, 129 }; 130 131 static const struct snd_soc_dapm_route byt_cht_es8316_ssp2_map[] = { 132 {"Playback", NULL, "ssp2 Tx"}, 133 {"ssp2 Tx", NULL, "codec_out0"}, 134 {"ssp2 Tx", NULL, "codec_out1"}, 135 {"codec_in0", NULL, "ssp2 Rx" }, 136 {"codec_in1", NULL, "ssp2 Rx" }, 137 {"ssp2 Rx", NULL, "Capture"}, 138 }; 139 140 static const struct snd_kcontrol_new byt_cht_es8316_controls[] = { 141 SOC_DAPM_PIN_SWITCH("Speaker"), 142 SOC_DAPM_PIN_SWITCH("Headphone"), 143 SOC_DAPM_PIN_SWITCH("Headset Mic"), 144 SOC_DAPM_PIN_SWITCH("Internal Mic"), 145 }; 146 147 static struct snd_soc_jack_pin byt_cht_es8316_jack_pins[] = { 148 { 149 .pin = "Headphone", 150 .mask = SND_JACK_HEADPHONE, 151 }, 152 { 153 .pin = "Headset Mic", 154 .mask = SND_JACK_MICROPHONE, 155 }, 156 }; 157 158 static int byt_cht_es8316_init(struct snd_soc_pcm_runtime *runtime) 159 { 160 struct snd_soc_component *codec = runtime->codec_dai->component; 161 struct snd_soc_card *card = runtime->card; 162 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); 163 const struct snd_soc_dapm_route *custom_map; 164 int num_routes; 165 int ret; 166 167 card->dapm.idle_bias_off = true; 168 169 switch (BYT_CHT_ES8316_MAP(quirk)) { 170 case BYT_CHT_ES8316_INTMIC_IN1_MAP: 171 default: 172 custom_map = byt_cht_es8316_intmic_in1_map; 173 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in1_map); 174 break; 175 case BYT_CHT_ES8316_INTMIC_IN2_MAP: 176 custom_map = byt_cht_es8316_intmic_in2_map; 177 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in2_map); 178 break; 179 } 180 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 181 if (ret) 182 return ret; 183 184 if (quirk & BYT_CHT_ES8316_SSP0) { 185 custom_map = byt_cht_es8316_ssp0_map; 186 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp0_map); 187 } else { 188 custom_map = byt_cht_es8316_ssp2_map; 189 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp2_map); 190 } 191 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 192 if (ret) 193 return ret; 194 195 /* 196 * The firmware might enable the clock at boot (this information 197 * may or may not be reflected in the enable clock register). 198 * To change the rate we must disable the clock first to cover these 199 * cases. Due to common clock framework restrictions that do not allow 200 * to disable a clock that has not been enabled, we need to enable 201 * the clock first. 202 */ 203 ret = clk_prepare_enable(priv->mclk); 204 if (!ret) 205 clk_disable_unprepare(priv->mclk); 206 207 ret = clk_set_rate(priv->mclk, 19200000); 208 if (ret) 209 dev_err(card->dev, "unable to set MCLK rate\n"); 210 211 ret = clk_prepare_enable(priv->mclk); 212 if (ret) 213 dev_err(card->dev, "unable to enable MCLK\n"); 214 215 ret = snd_soc_dai_set_sysclk(runtime->codec_dai, 0, 19200000, 216 SND_SOC_CLOCK_IN); 217 if (ret < 0) { 218 dev_err(card->dev, "can't set codec clock %d\n", ret); 219 return ret; 220 } 221 222 ret = snd_soc_card_jack_new(card, "Headset", 223 SND_JACK_HEADSET | SND_JACK_BTN_0, 224 &priv->jack, byt_cht_es8316_jack_pins, 225 ARRAY_SIZE(byt_cht_es8316_jack_pins)); 226 if (ret) { 227 dev_err(card->dev, "jack creation failed %d\n", ret); 228 return ret; 229 } 230 231 snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 232 snd_soc_component_set_jack(codec, &priv->jack, NULL); 233 234 return 0; 235 } 236 237 static const struct snd_soc_pcm_stream byt_cht_es8316_dai_params = { 238 .formats = SNDRV_PCM_FMTBIT_S24_LE, 239 .rate_min = 48000, 240 .rate_max = 48000, 241 .channels_min = 2, 242 .channels_max = 2, 243 }; 244 245 static int byt_cht_es8316_codec_fixup(struct snd_soc_pcm_runtime *rtd, 246 struct snd_pcm_hw_params *params) 247 { 248 struct snd_interval *rate = hw_param_interval(params, 249 SNDRV_PCM_HW_PARAM_RATE); 250 struct snd_interval *channels = hw_param_interval(params, 251 SNDRV_PCM_HW_PARAM_CHANNELS); 252 int ret, bits; 253 254 /* The DSP will covert the FE rate to 48k, stereo */ 255 rate->min = rate->max = 48000; 256 channels->min = channels->max = 2; 257 258 if (quirk & BYT_CHT_ES8316_SSP0) { 259 /* set SSP0 to 16-bit */ 260 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); 261 bits = 16; 262 } else { 263 /* set SSP2 to 24-bit */ 264 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 265 bits = 24; 266 } 267 268 /* 269 * Default mode for SSP configuration is TDM 4 slot, override config 270 * with explicit setting to I2S 2ch 24-bit. The word length is set with 271 * dai_set_tdm_slot() since there is no other API exposed 272 */ 273 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 274 SND_SOC_DAIFMT_I2S | 275 SND_SOC_DAIFMT_NB_NF | 276 SND_SOC_DAIFMT_CBS_CFS 277 ); 278 if (ret < 0) { 279 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 280 return ret; 281 } 282 283 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, bits); 284 if (ret < 0) { 285 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 286 return ret; 287 } 288 289 return 0; 290 } 291 292 static int byt_cht_es8316_aif1_startup(struct snd_pcm_substream *substream) 293 { 294 return snd_pcm_hw_constraint_single(substream->runtime, 295 SNDRV_PCM_HW_PARAM_RATE, 48000); 296 } 297 298 static const struct snd_soc_ops byt_cht_es8316_aif1_ops = { 299 .startup = byt_cht_es8316_aif1_startup, 300 }; 301 302 SND_SOC_DAILINK_DEF(dummy, 303 DAILINK_COMP_ARRAY(COMP_DUMMY())); 304 305 SND_SOC_DAILINK_DEF(media, 306 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); 307 308 SND_SOC_DAILINK_DEF(deepbuffer, 309 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); 310 311 SND_SOC_DAILINK_DEF(ssp2_port, 312 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); 313 SND_SOC_DAILINK_DEF(ssp2_codec, 314 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8316:00", "ES8316 HiFi"))); 315 316 SND_SOC_DAILINK_DEF(platform, 317 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); 318 319 static struct snd_soc_dai_link byt_cht_es8316_dais[] = { 320 [MERR_DPCM_AUDIO] = { 321 .name = "Audio Port", 322 .stream_name = "Audio", 323 .nonatomic = true, 324 .dynamic = 1, 325 .dpcm_playback = 1, 326 .dpcm_capture = 1, 327 .ops = &byt_cht_es8316_aif1_ops, 328 SND_SOC_DAILINK_REG(media, dummy, platform), 329 }, 330 331 [MERR_DPCM_DEEP_BUFFER] = { 332 .name = "Deep-Buffer Audio Port", 333 .stream_name = "Deep-Buffer Audio", 334 .nonatomic = true, 335 .dynamic = 1, 336 .dpcm_playback = 1, 337 .ops = &byt_cht_es8316_aif1_ops, 338 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), 339 }, 340 341 /* back ends */ 342 { 343 /* Only SSP2 has been tested here, so BYT-CR platforms that 344 * require SSP0 will not work. 345 */ 346 .name = "SSP2-Codec", 347 .id = 0, 348 .no_pcm = 1, 349 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 350 | SND_SOC_DAIFMT_CBS_CFS, 351 .be_hw_params_fixup = byt_cht_es8316_codec_fixup, 352 .nonatomic = true, 353 .dpcm_playback = 1, 354 .dpcm_capture = 1, 355 .init = byt_cht_es8316_init, 356 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), 357 }, 358 }; 359 360 361 /* SoC card */ 362 static char codec_name[SND_ACPI_I2C_ID_LEN]; 363 static char long_name[50]; /* = "bytcht-es8316-*-spk-*-mic" */ 364 365 static int byt_cht_es8316_suspend(struct snd_soc_card *card) 366 { 367 struct snd_soc_component *component; 368 369 for_each_card_components(card, component) { 370 if (!strcmp(component->name, codec_name)) { 371 dev_dbg(component->dev, "disabling jack detect before suspend\n"); 372 snd_soc_component_set_jack(component, NULL, NULL); 373 break; 374 } 375 } 376 377 return 0; 378 } 379 380 static int byt_cht_es8316_resume(struct snd_soc_card *card) 381 { 382 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); 383 struct snd_soc_component *component; 384 385 for_each_card_components(card, component) { 386 if (!strcmp(component->name, codec_name)) { 387 dev_dbg(component->dev, "re-enabling jack detect after resume\n"); 388 snd_soc_component_set_jack(component, &priv->jack, NULL); 389 break; 390 } 391 } 392 393 /* 394 * Some Cherry Trail boards with an ES8316 codec have a bug in their 395 * ACPI tables where the MSSL1680 touchscreen's _PS0 and _PS3 methods 396 * wrongly also set the speaker-enable GPIO to 1/0. Testing has shown 397 * that this really is a bug and the GPIO has no influence on the 398 * touchscreen at all. 399 * 400 * The silead.c touchscreen driver does not support runtime suspend, so 401 * the GPIO can only be changed underneath us during a system suspend. 402 * This resume() function runs from a pm complete() callback, and thus 403 * is guaranteed to run after the touchscreen driver/ACPI-subsys has 404 * brought the touchscreen back up again (and thus changed the GPIO). 405 * 406 * So to work around this we pass GPIOD_FLAGS_BIT_NONEXCLUSIVE when 407 * requesting the GPIO and we set its value here to undo any changes 408 * done by the touchscreen's broken _PS0 ACPI method. 409 */ 410 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en); 411 412 return 0; 413 } 414 415 static struct snd_soc_card byt_cht_es8316_card = { 416 .name = "bytcht-es8316", 417 .owner = THIS_MODULE, 418 .dai_link = byt_cht_es8316_dais, 419 .num_links = ARRAY_SIZE(byt_cht_es8316_dais), 420 .dapm_widgets = byt_cht_es8316_widgets, 421 .num_dapm_widgets = ARRAY_SIZE(byt_cht_es8316_widgets), 422 .dapm_routes = byt_cht_es8316_audio_map, 423 .num_dapm_routes = ARRAY_SIZE(byt_cht_es8316_audio_map), 424 .controls = byt_cht_es8316_controls, 425 .num_controls = ARRAY_SIZE(byt_cht_es8316_controls), 426 .fully_routed = true, 427 .suspend_pre = byt_cht_es8316_suspend, 428 .resume_post = byt_cht_es8316_resume, 429 }; 430 431 static const struct acpi_gpio_params first_gpio = { 0, 0, false }; 432 433 static const struct acpi_gpio_mapping byt_cht_es8316_gpios[] = { 434 { "speaker-enable-gpios", &first_gpio, 1 }, 435 { }, 436 }; 437 438 /* Please keep this list alphabetically sorted */ 439 static const struct dmi_system_id byt_cht_es8316_quirk_table[] = { 440 { /* Irbis NB41 */ 441 .matches = { 442 DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"), 443 DMI_MATCH(DMI_PRODUCT_NAME, "NB41"), 444 }, 445 .driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN2_MAP 446 | BYT_CHT_ES8316_JD_INVERTED), 447 }, 448 { /* Teclast X98 Plus II */ 449 .matches = { 450 DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"), 451 DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"), 452 }, 453 .driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN1_MAP 454 | BYT_CHT_ES8316_JD_INVERTED), 455 }, 456 {} 457 }; 458 459 static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev) 460 { 461 static const char * const mic_name[] = { "in1", "in2" }; 462 struct property_entry props[MAX_NO_PROPS] = {}; 463 struct byt_cht_es8316_private *priv; 464 const struct dmi_system_id *dmi_id; 465 struct device *dev = &pdev->dev; 466 struct snd_soc_acpi_mach *mach; 467 const char *platform_name; 468 struct acpi_device *adev; 469 struct device *codec_dev; 470 unsigned int cnt = 0; 471 int dai_index = 0; 472 int i; 473 int ret = 0; 474 475 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 476 if (!priv) 477 return -ENOMEM; 478 479 mach = dev->platform_data; 480 /* fix index of codec dai */ 481 for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) { 482 if (!strcmp(byt_cht_es8316_dais[i].codecs->name, 483 "i2c-ESSX8316:00")) { 484 dai_index = i; 485 break; 486 } 487 } 488 489 /* fixup codec name based on HID */ 490 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); 491 if (adev) { 492 snprintf(codec_name, sizeof(codec_name), 493 "i2c-%s", acpi_dev_name(adev)); 494 put_device(&adev->dev); 495 byt_cht_es8316_dais[dai_index].codecs->name = codec_name; 496 } 497 498 /* override plaform name, if required */ 499 byt_cht_es8316_card.dev = dev; 500 platform_name = mach->mach_params.platform; 501 502 ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card, 503 platform_name); 504 if (ret) 505 return ret; 506 507 /* Check for BYTCR or other platform and setup quirks */ 508 dmi_id = dmi_first_match(byt_cht_es8316_quirk_table); 509 if (dmi_id) { 510 quirk = (unsigned long)dmi_id->driver_data; 511 } else if (soc_intel_is_byt() && 512 mach->mach_params.acpi_ipc_irq_index == 0) { 513 /* On BYTCR default to SSP0, internal-mic-in2-map, mono-spk */ 514 quirk = BYT_CHT_ES8316_SSP0 | BYT_CHT_ES8316_INTMIC_IN2_MAP | 515 BYT_CHT_ES8316_MONO_SPEAKER; 516 } else { 517 /* Others default to internal-mic-in1-map, mono-speaker */ 518 quirk = BYT_CHT_ES8316_INTMIC_IN1_MAP | 519 BYT_CHT_ES8316_MONO_SPEAKER; 520 } 521 if (quirk_override != -1) { 522 dev_info(dev, "Overriding quirk 0x%x => 0x%x\n", 523 (unsigned int)quirk, 524 quirk_override); 525 quirk = quirk_override; 526 } 527 log_quirks(dev); 528 529 if (quirk & BYT_CHT_ES8316_SSP0) 530 byt_cht_es8316_dais[dai_index].cpus->dai_name = "ssp0-port"; 531 532 /* get the clock */ 533 priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3"); 534 if (IS_ERR(priv->mclk)) { 535 ret = PTR_ERR(priv->mclk); 536 dev_err(dev, "clk_get pmc_plt_clk_3 failed: %d\n", ret); 537 return ret; 538 } 539 540 /* get speaker enable GPIO */ 541 codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name); 542 if (!codec_dev) 543 return -EPROBE_DEFER; 544 545 if (quirk & BYT_CHT_ES8316_JD_INVERTED) 546 props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted"); 547 548 if (cnt) { 549 ret = device_add_properties(codec_dev, props); 550 if (ret) 551 return ret; 552 } 553 554 devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios); 555 priv->speaker_en_gpio = 556 gpiod_get_index(codec_dev, "speaker-enable", 0, 557 /* see comment in byt_cht_es8316_resume */ 558 GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE); 559 put_device(codec_dev); 560 561 if (IS_ERR(priv->speaker_en_gpio)) { 562 ret = PTR_ERR(priv->speaker_en_gpio); 563 switch (ret) { 564 case -ENOENT: 565 priv->speaker_en_gpio = NULL; 566 break; 567 default: 568 dev_err(dev, "get speaker GPIO failed: %d\n", ret); 569 /* fall through */ 570 case -EPROBE_DEFER: 571 return ret; 572 } 573 } 574 575 /* register the soc card */ 576 snprintf(long_name, sizeof(long_name), "bytcht-es8316-%s-spk-%s-mic", 577 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo", 578 mic_name[BYT_CHT_ES8316_MAP(quirk)]); 579 byt_cht_es8316_card.long_name = long_name; 580 snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv); 581 582 ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card); 583 if (ret) { 584 gpiod_put(priv->speaker_en_gpio); 585 dev_err(dev, "snd_soc_register_card failed: %d\n", ret); 586 return ret; 587 } 588 platform_set_drvdata(pdev, &byt_cht_es8316_card); 589 return 0; 590 } 591 592 static int snd_byt_cht_es8316_mc_remove(struct platform_device *pdev) 593 { 594 struct snd_soc_card *card = platform_get_drvdata(pdev); 595 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); 596 597 gpiod_put(priv->speaker_en_gpio); 598 return 0; 599 } 600 601 static struct platform_driver snd_byt_cht_es8316_mc_driver = { 602 .driver = { 603 .name = "bytcht_es8316", 604 }, 605 .probe = snd_byt_cht_es8316_mc_probe, 606 .remove = snd_byt_cht_es8316_mc_remove, 607 }; 608 609 module_platform_driver(snd_byt_cht_es8316_mc_driver); 610 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver"); 611 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>"); 612 MODULE_LICENSE("GPL v2"); 613 MODULE_ALIAS("platform:bytcht_es8316"); 614