1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * bytcr_wm5102.c - ASoc Machine driver for Intel Baytrail platforms with a 4 * Wolfson Microelectronics WM5102 codec 5 * 6 * Copyright (C) 2020 Hans de Goede <hdegoede@redhat.com> 7 * Loosely based on bytcr_rt5640.c which is: 8 * Copyright (C) 2014-2020 Intel Corp 9 * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com> 10 */ 11 12#include <linux/acpi.h> 13#include <linux/bitfield.h> 14#include <linux/clk.h> 15#include <linux/device.h> 16#include <linux/init.h> 17#include <linux/module.h> 18#include <linux/moduleparam.h> 19#include <linux/platform_data/x86/soc.h> 20#include <linux/platform_device.h> 21#include <linux/slab.h> 22#include <linux/spi/spi.h> 23#include <sound/jack.h> 24#include <sound/pcm.h> 25#include <sound/pcm_params.h> 26#include <sound/soc.h> 27#include <sound/soc-acpi.h> 28#include "../../codecs/wm5102.h" 29#include "../atom/sst-atom-controls.h" 30 31#define WM5102_MAX_SYSCLK_4K 49152000 /* max sysclk for 4K family */ 32#define WM5102_MAX_SYSCLK_11025 45158400 /* max sysclk for 11.025K family */ 33 34struct byt_wm5102_private { 35 struct snd_soc_jack jack; 36 struct clk *mclk; 37 struct gpio_desc *spkvdd_en_gpio; 38 int mclk_freq; 39}; 40 41#define BYT_WM5102_IN_MAP GENMASK(3, 0) 42#define BYT_WM5102_OUT_MAP GENMASK(7, 4) 43#define BYT_WM5102_SSP2 BIT(16) 44#define BYT_WM5102_MCLK_19_2MHZ BIT(17) 45 46enum { 47 BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L, 48 BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L, 49}; 50 51/* Note these values are pre-shifted for easy use of setting quirks */ 52enum { 53 BYT_WM5102_SPK_SPK_MAP = FIELD_PREP_CONST(BYT_WM5102_OUT_MAP, 0), 54 BYT_WM5102_SPK_HPOUT2_MAP = FIELD_PREP_CONST(BYT_WM5102_OUT_MAP, 1), 55}; 56 57static unsigned long quirk; 58 59static int quirk_override = -1; 60module_param_named(quirk, quirk_override, int, 0444); 61MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 62 63static void log_quirks(struct device *dev) 64{ 65 switch (quirk & BYT_WM5102_IN_MAP) { 66 case BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L: 67 dev_info_once(dev, "quirk INTMIC_IN3L_HSMIC_IN1L enabled\n"); 68 break; 69 case BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L: 70 dev_info_once(dev, "quirk INTMIC_IN1L_HSMIC_IN2L enabled\n"); 71 break; 72 default: 73 dev_warn_once(dev, "quirk sets invalid input map: 0x%lx, defaulting to INTMIC_IN3L_HSMIC_IN1L\n", 74 quirk & BYT_WM5102_IN_MAP); 75 quirk &= ~BYT_WM5102_IN_MAP; 76 quirk |= BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L; 77 break; 78 } 79 switch (quirk & BYT_WM5102_OUT_MAP) { 80 case BYT_WM5102_SPK_SPK_MAP: 81 dev_info_once(dev, "quirk SPK_SPK_MAP enabled\n"); 82 break; 83 case BYT_WM5102_SPK_HPOUT2_MAP: 84 dev_info_once(dev, "quirk SPK_HPOUT2_MAP enabled\n"); 85 break; 86 default: 87 dev_warn_once(dev, "quirk sets invalid output map: 0x%lx, defaulting to SPK_SPK_MAP\n", 88 quirk & BYT_WM5102_OUT_MAP); 89 quirk &= ~BYT_WM5102_OUT_MAP; 90 quirk |= BYT_WM5102_SPK_SPK_MAP; 91 break; 92 } 93 if (quirk & BYT_WM5102_SSP2) 94 dev_info_once(dev, "quirk SSP2 enabled"); 95 if (quirk & BYT_WM5102_MCLK_19_2MHZ) 96 dev_info_once(dev, "quirk MCLK 19.2MHz enabled"); 97} 98 99static int byt_wm5102_spkvdd_power_event(struct snd_soc_dapm_widget *w, 100 struct snd_kcontrol *kcontrol, int event) 101{ 102 struct snd_soc_card *card = w->dapm->card; 103 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card); 104 105 gpiod_set_value_cansleep(priv->spkvdd_en_gpio, 106 !!SND_SOC_DAPM_EVENT_ON(event)); 107 108 return 0; 109} 110 111static int byt_wm5102_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai, int rate) 112{ 113 struct snd_soc_component *codec_component = codec_dai->component; 114 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(codec_component->card); 115 int sr_mult = ((rate % 4000) == 0) ? 116 (WM5102_MAX_SYSCLK_4K / rate) : 117 (WM5102_MAX_SYSCLK_11025 / rate); 118 int ret; 119 120 /* Reset FLL1 */ 121 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0); 122 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0); 123 124 /* Configure the FLL1 PLL before selecting it */ 125 ret = snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_CLK_SRC_MCLK1, 126 priv->mclk_freq, rate * sr_mult); 127 if (ret) { 128 dev_err(codec_component->dev, "Error setting PLL: %d\n", ret); 129 return ret; 130 } 131 132 ret = snd_soc_component_set_sysclk(codec_component, ARIZONA_CLK_SYSCLK, 133 ARIZONA_CLK_SRC_FLL1, rate * sr_mult, 134 SND_SOC_CLOCK_IN); 135 if (ret) { 136 dev_err(codec_component->dev, "Error setting SYSCLK: %d\n", ret); 137 return ret; 138 } 139 140 ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK, 141 rate * 512, SND_SOC_CLOCK_IN); 142 if (ret) { 143 dev_err(codec_component->dev, "Error setting clock: %d\n", ret); 144 return ret; 145 } 146 147 return 0; 148} 149 150static int platform_clock_control(struct snd_soc_dapm_widget *w, 151 struct snd_kcontrol *k, int event) 152{ 153 struct snd_soc_dapm_context *dapm = w->dapm; 154 struct snd_soc_card *card = dapm->card; 155 struct snd_soc_dai *codec_dai; 156 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card); 157 int ret; 158 159 codec_dai = snd_soc_card_get_codec_dai(card, "wm5102-aif1"); 160 if (!codec_dai) { 161 dev_err(card->dev, "Error codec DAI not found\n"); 162 return -EIO; 163 } 164 165 if (SND_SOC_DAPM_EVENT_ON(event)) { 166 ret = clk_prepare_enable(priv->mclk); 167 if (ret) { 168 dev_err(card->dev, "Error enabling MCLK: %d\n", ret); 169 return ret; 170 } 171 ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, 48000); 172 if (ret) { 173 dev_err(card->dev, "Error setting codec sysclk: %d\n", ret); 174 return ret; 175 } 176 } else { 177 /* 178 * The WM5102 has a separate 32KHz clock for jack-detect 179 * so we can disable the PLL, followed by disabling the 180 * platform clock which is the source-clock for the PLL. 181 */ 182 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0); 183 clk_disable_unprepare(priv->mclk); 184 } 185 186 return 0; 187} 188 189static const struct snd_soc_dapm_widget byt_wm5102_widgets[] = { 190 SND_SOC_DAPM_HP("Headphone", NULL), 191 SND_SOC_DAPM_MIC("Headset Mic", NULL), 192 SND_SOC_DAPM_MIC("Internal Mic", NULL), 193 SND_SOC_DAPM_SPK("Speaker", NULL), 194 SND_SOC_DAPM_LINE("Line Out", NULL), 195 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 196 platform_clock_control, SND_SOC_DAPM_PRE_PMU | 197 SND_SOC_DAPM_POST_PMD), 198 SND_SOC_DAPM_SUPPLY("Speaker VDD", SND_SOC_NOPM, 0, 0, 199 byt_wm5102_spkvdd_power_event, 200 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 201}; 202 203static const struct snd_soc_dapm_route byt_wm5102_audio_map[] = { 204 {"Headphone", NULL, "Platform Clock"}, 205 {"Headset Mic", NULL, "Platform Clock"}, 206 {"Internal Mic", NULL, "Platform Clock"}, 207 {"Speaker", NULL, "Platform Clock"}, 208 {"Speaker", NULL, "Speaker VDD"}, 209 210 {"Headphone", NULL, "HPOUT1L"}, 211 {"Headphone", NULL, "HPOUT1R"}, 212 213 /* 214 * The Headset Mix uses MICBIAS1 or 2 depending on if a CTIA/OMTP Headset 215 * is connected, as the MICBIAS is applied after the CTIA/OMTP cross-switch. 216 */ 217 {"Headset Mic", NULL, "MICBIAS1"}, 218 {"Headset Mic", NULL, "MICBIAS2"}, 219 {"Internal Mic", NULL, "MICBIAS3"}, 220}; 221 222static const struct snd_soc_dapm_route bytcr_wm5102_ssp0_map[] = { 223 {"AIF1 Playback", NULL, "ssp0 Tx"}, 224 {"ssp0 Tx", NULL, "modem_out"}, 225 {"modem_in", NULL, "ssp0 Rx"}, 226 {"ssp0 Rx", NULL, "AIF1 Capture"}, 227}; 228 229static const struct snd_soc_dapm_route bytcr_wm5102_ssp2_map[] = { 230 {"AIF1 Playback", NULL, "ssp2 Tx"}, 231 {"ssp2 Tx", NULL, "codec_out0"}, 232 {"ssp2 Tx", NULL, "codec_out1"}, 233 {"codec_in0", NULL, "ssp2 Rx"}, 234 {"codec_in1", NULL, "ssp2 Rx"}, 235 {"ssp2 Rx", NULL, "AIF1 Capture"}, 236}; 237 238static const struct snd_soc_dapm_route byt_wm5102_spk_spk_map[] = { 239 {"Speaker", NULL, "SPKOUTLP"}, 240 {"Speaker", NULL, "SPKOUTLN"}, 241 {"Speaker", NULL, "SPKOUTRP"}, 242 {"Speaker", NULL, "SPKOUTRN"}, 243}; 244 245static const struct snd_soc_dapm_route byt_wm5102_spk_hpout2_map[] = { 246 {"Speaker", NULL, "HPOUT2L"}, 247 {"Speaker", NULL, "HPOUT2R"}, 248}; 249 250static const struct snd_soc_dapm_route byt_wm5102_intmic_in3l_hsmic_in1l_map[] = { 251 {"IN3L", NULL, "Internal Mic"}, 252 {"IN1L", NULL, "Headset Mic"}, 253}; 254 255static const struct snd_soc_dapm_route byt_wm5102_intmic_in1l_hsmic_in2l_map[] = { 256 {"IN1L", NULL, "Internal Mic"}, 257 {"IN2L", NULL, "Headset Mic"}, 258}; 259 260static const struct snd_kcontrol_new byt_wm5102_controls[] = { 261 SOC_DAPM_PIN_SWITCH("Headphone"), 262 SOC_DAPM_PIN_SWITCH("Headset Mic"), 263 SOC_DAPM_PIN_SWITCH("Internal Mic"), 264 SOC_DAPM_PIN_SWITCH("Speaker"), 265 SOC_DAPM_PIN_SWITCH("Line Out"), 266}; 267 268static struct snd_soc_jack_pin byt_wm5102_pins[] = { 269 { 270 .pin = "Headphone", 271 .mask = SND_JACK_HEADPHONE, 272 }, 273 { 274 .pin = "Headset Mic", 275 .mask = SND_JACK_MICROPHONE, 276 }, 277 { 278 .pin = "Line Out", 279 .mask = SND_JACK_LINEOUT, 280 }, 281}; 282 283static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime) 284{ 285 struct snd_soc_card *card = runtime->card; 286 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card); 287 struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component; 288 const struct snd_soc_dapm_route *custom_map = NULL; 289 int ret, jack_type, num_routes = 0; 290 291 card->dapm.idle_bias_off = true; 292 293 ret = snd_soc_add_card_controls(card, byt_wm5102_controls, 294 ARRAY_SIZE(byt_wm5102_controls)); 295 if (ret) { 296 dev_err(card->dev, "Error adding card controls: %d\n", ret); 297 return ret; 298 } 299 300 switch (quirk & BYT_WM5102_IN_MAP) { 301 case BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L: 302 custom_map = byt_wm5102_intmic_in3l_hsmic_in1l_map; 303 num_routes = ARRAY_SIZE(byt_wm5102_intmic_in3l_hsmic_in1l_map); 304 break; 305 case BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L: 306 custom_map = byt_wm5102_intmic_in1l_hsmic_in2l_map; 307 num_routes = ARRAY_SIZE(byt_wm5102_intmic_in1l_hsmic_in2l_map); 308 break; 309 } 310 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 311 if (ret) 312 return ret; 313 314 switch (quirk & BYT_WM5102_OUT_MAP) { 315 case BYT_WM5102_SPK_SPK_MAP: 316 custom_map = byt_wm5102_spk_spk_map; 317 num_routes = ARRAY_SIZE(byt_wm5102_spk_spk_map); 318 break; 319 case BYT_WM5102_SPK_HPOUT2_MAP: 320 custom_map = byt_wm5102_spk_hpout2_map; 321 num_routes = ARRAY_SIZE(byt_wm5102_spk_hpout2_map); 322 break; 323 } 324 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 325 if (ret) 326 return ret; 327 328 if (quirk & BYT_WM5102_SSP2) { 329 custom_map = bytcr_wm5102_ssp2_map; 330 num_routes = ARRAY_SIZE(bytcr_wm5102_ssp2_map); 331 } else { 332 custom_map = bytcr_wm5102_ssp0_map; 333 num_routes = ARRAY_SIZE(bytcr_wm5102_ssp0_map); 334 } 335 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 336 if (ret) 337 return ret; 338 339 if (quirk & BYT_WM5102_MCLK_19_2MHZ) 340 priv->mclk_freq = 19200000; 341 else 342 priv->mclk_freq = 25000000; 343 344 /* 345 * The firmware might enable the clock at boot (this information 346 * may or may not be reflected in the enable clock register). 347 * To change the rate we must disable the clock first to cover these 348 * cases. Due to common clock framework restrictions that do not allow 349 * to disable a clock that has not been enabled, we need to enable 350 * the clock first. 351 */ 352 ret = clk_prepare_enable(priv->mclk); 353 if (!ret) 354 clk_disable_unprepare(priv->mclk); 355 356 ret = clk_set_rate(priv->mclk, priv->mclk_freq); 357 if (ret) { 358 dev_err(card->dev, "Error setting MCLK rate: %d\n", ret); 359 return ret; 360 } 361 362 jack_type = ARIZONA_JACK_MASK | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 363 SND_JACK_BTN_2 | SND_JACK_BTN_3; 364 ret = snd_soc_card_jack_new_pins(card, "Headset", jack_type, 365 &priv->jack, byt_wm5102_pins, 366 ARRAY_SIZE(byt_wm5102_pins)); 367 if (ret) { 368 dev_err(card->dev, "Error creating jack: %d\n", ret); 369 return ret; 370 } 371 372 snd_soc_component_set_jack(component, &priv->jack, NULL); 373 374 return 0; 375} 376 377static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd, 378 struct snd_pcm_hw_params *params) 379{ 380 struct snd_interval *rate = hw_param_interval(params, 381 SNDRV_PCM_HW_PARAM_RATE); 382 struct snd_interval *channels = hw_param_interval(params, 383 SNDRV_PCM_HW_PARAM_CHANNELS); 384 int ret, bits; 385 386 /* The DSP will convert the FE rate to 48k, stereo */ 387 rate->min = 48000; 388 rate->max = 48000; 389 channels->min = 2; 390 channels->max = 2; 391 392 if (quirk & BYT_WM5102_SSP2) { 393 /* set SSP2 to 24-bit */ 394 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 395 bits = 24; 396 } else { 397 /* set SSP0 to 16-bit */ 398 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); 399 bits = 16; 400 } 401 402 /* 403 * Default mode for SSP configuration is TDM 4 slot, override config 404 * with explicit setting to I2S 2ch 16-bit. The word length is set with 405 * dai_set_tdm_slot() since there is no other API exposed 406 */ 407 ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0), 408 SND_SOC_DAIFMT_I2S | 409 SND_SOC_DAIFMT_NB_NF | 410 SND_SOC_DAIFMT_BP_FP); 411 if (ret) { 412 dev_err(rtd->dev, "Error setting format to I2S: %d\n", ret); 413 return ret; 414 } 415 416 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits); 417 if (ret) { 418 dev_err(rtd->dev, "Error setting I2S config: %d\n", ret); 419 return ret; 420 } 421 422 return 0; 423} 424 425static int byt_wm5102_aif1_startup(struct snd_pcm_substream *substream) 426{ 427 return snd_pcm_hw_constraint_single(substream->runtime, 428 SNDRV_PCM_HW_PARAM_RATE, 48000); 429} 430 431static const struct snd_soc_ops byt_wm5102_aif1_ops = { 432 .startup = byt_wm5102_aif1_startup, 433}; 434 435SND_SOC_DAILINK_DEF(dummy, 436 DAILINK_COMP_ARRAY(COMP_DUMMY())); 437 438SND_SOC_DAILINK_DEF(media, 439 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); 440 441SND_SOC_DAILINK_DEF(deepbuffer, 442 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); 443 444SND_SOC_DAILINK_DEF(ssp0_port, 445 DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port"))); 446 447SND_SOC_DAILINK_DEF(ssp0_codec, 448 DAILINK_COMP_ARRAY(COMP_CODEC( 449 /* 450 * Note there is no need to overwrite the codec-name as is done in 451 * other bytcr machine drivers, because the codec is a MFD child-dev. 452 */ 453 "wm5102-codec", 454 "wm5102-aif1"))); 455 456SND_SOC_DAILINK_DEF(platform, 457 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); 458 459static struct snd_soc_dai_link byt_wm5102_dais[] = { 460 [MERR_DPCM_AUDIO] = { 461 .name = "Baytrail Audio Port", 462 .stream_name = "Baytrail Audio", 463 .nonatomic = true, 464 .dynamic = 1, 465 .dpcm_playback = 1, 466 .dpcm_capture = 1, 467 .ops = &byt_wm5102_aif1_ops, 468 SND_SOC_DAILINK_REG(media, dummy, platform), 469 470 }, 471 [MERR_DPCM_DEEP_BUFFER] = { 472 .name = "Deep-Buffer Audio Port", 473 .stream_name = "Deep-Buffer Audio", 474 .nonatomic = true, 475 .dynamic = 1, 476 .dpcm_playback = 1, 477 .ops = &byt_wm5102_aif1_ops, 478 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), 479 }, 480 /* back ends */ 481 { 482 /* 483 * This dailink is updated dynamically to point to SSP0 or SSP2. 484 * Yet its name is always kept as "SSP2-Codec" because the SOF 485 * tplg files hardcode "SSP2-Codec" even in byt-foo-ssp0.tplg. 486 */ 487 .name = "SSP2-Codec", 488 .id = 0, 489 .no_pcm = 1, 490 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 491 | SND_SOC_DAIFMT_CBC_CFC, 492 .be_hw_params_fixup = byt_wm5102_codec_fixup, 493 .dpcm_playback = 1, 494 .dpcm_capture = 1, 495 .init = byt_wm5102_init, 496 SND_SOC_DAILINK_REG(ssp0_port, ssp0_codec, platform), 497 }, 498}; 499 500/* use space before codec name to simplify card ID, and simplify driver name */ 501#define SOF_CARD_NAME "bytcht wm5102" /* card name will be 'sof-bytcht wm5102' */ 502#define SOF_DRIVER_NAME "SOF" 503 504#define CARD_NAME "bytcr-wm5102" 505#define DRIVER_NAME NULL /* card name will be used for driver name */ 506 507/* SoC card */ 508static struct snd_soc_card byt_wm5102_card = { 509 .owner = THIS_MODULE, 510 .dai_link = byt_wm5102_dais, 511 .num_links = ARRAY_SIZE(byt_wm5102_dais), 512 .dapm_widgets = byt_wm5102_widgets, 513 .num_dapm_widgets = ARRAY_SIZE(byt_wm5102_widgets), 514 .dapm_routes = byt_wm5102_audio_map, 515 .num_dapm_routes = ARRAY_SIZE(byt_wm5102_audio_map), 516 .fully_routed = true, 517}; 518 519static char byt_wm5102_components[64]; /* = "cfg-spk:* cfg-int-mic:* cfg-hs-mic:* ..." */ 520 521static int snd_byt_wm5102_mc_probe(struct platform_device *pdev) 522{ 523 static const char * const out_map_name[] = { "spk", "hpout2" }; 524 static const char * const intmic_map_name[] = { "in3l", "in1l" }; 525 static const char * const hsmic_map_name[] = { "in1l", "in2l" }; 526 char codec_name[SND_ACPI_I2C_ID_LEN]; 527 struct device *dev = &pdev->dev; 528 struct byt_wm5102_private *priv; 529 struct snd_soc_acpi_mach *mach; 530 const char *platform_name; 531 struct acpi_device *adev; 532 struct device *codec_dev; 533 int dai_index = 0; 534 bool sof_parent; 535 int i, ret; 536 537 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 538 if (!priv) 539 return -ENOMEM; 540 541 /* Get MCLK */ 542 priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3"); 543 if (IS_ERR(priv->mclk)) 544 return dev_err_probe(dev, PTR_ERR(priv->mclk), "getting pmc_plt_clk_3\n"); 545 546 /* 547 * Get speaker VDD enable GPIO: 548 * 1. Get codec-device-name 549 * 2. Get codec-device 550 * 3. Get GPIO from codec-device 551 */ 552 mach = dev->platform_data; 553 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); 554 if (adev) { 555 snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev)); 556 acpi_dev_put(adev); 557 } else { 558 /* Special case for when the codec is missing from the DSTD */ 559 strscpy(codec_name, "spi1.0", sizeof(codec_name)); 560 } 561 562 codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name); 563 if (!codec_dev) 564 return -EPROBE_DEFER; 565 566 /* Note no devm_ here since we call gpiod_get on codec_dev rather then dev */ 567 priv->spkvdd_en_gpio = gpiod_get(codec_dev, "wlf,spkvdd-ena", GPIOD_OUT_LOW); 568 put_device(codec_dev); 569 570 if (IS_ERR(priv->spkvdd_en_gpio)) { 571 ret = PTR_ERR(priv->spkvdd_en_gpio); 572 /* 573 * The spkvdd gpio-lookup is registered by: drivers/mfd/arizona-spi.c, 574 * so -ENOENT means that arizona-spi hasn't probed yet. 575 */ 576 if (ret == -ENOENT) 577 ret = -EPROBE_DEFER; 578 579 return dev_err_probe(dev, ret, "getting spkvdd-GPIO\n"); 580 } 581 582 if (soc_intel_is_cht()) { 583 /* 584 * CHT always uses SSP2 and 19.2 MHz; and 585 * the one currently supported CHT design uses HPOUT2 as 586 * speaker output and has the intmic on IN1L + hsmic on IN2L. 587 */ 588 quirk = BYT_WM5102_SSP2 | BYT_WM5102_MCLK_19_2MHZ | 589 BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L | 590 BYT_WM5102_SPK_HPOUT2_MAP; 591 } 592 if (quirk_override != -1) { 593 dev_info_once(dev, "Overriding quirk 0x%lx => 0x%x\n", 594 quirk, quirk_override); 595 quirk = quirk_override; 596 } 597 log_quirks(dev); 598 599 snprintf(byt_wm5102_components, sizeof(byt_wm5102_components), 600 "cfg-spk:%s cfg-intmic:%s cfg-hsmic:%s", 601 out_map_name[FIELD_GET(BYT_WM5102_OUT_MAP, quirk)], 602 intmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)], 603 hsmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)]); 604 byt_wm5102_card.components = byt_wm5102_components; 605 606 /* find index of codec dai */ 607 for (i = 0; i < ARRAY_SIZE(byt_wm5102_dais); i++) { 608 if (byt_wm5102_dais[i].codecs->name && 609 !strcmp(byt_wm5102_dais[i].codecs->name, 610 "wm5102-codec")) { 611 dai_index = i; 612 break; 613 } 614 } 615 616 /* override platform name, if required */ 617 byt_wm5102_card.dev = dev; 618 platform_name = mach->mach_params.platform; 619 ret = snd_soc_fixup_dai_links_platform_name(&byt_wm5102_card, platform_name); 620 if (ret) 621 goto out_put_gpio; 622 623 /* override SSP port, if required */ 624 if (quirk & BYT_WM5102_SSP2) 625 byt_wm5102_dais[dai_index].cpus->dai_name = "ssp2-port"; 626 627 /* set card and driver name and pm-ops */ 628 sof_parent = snd_soc_acpi_sof_parent(dev); 629 if (sof_parent) { 630 byt_wm5102_card.name = SOF_CARD_NAME; 631 byt_wm5102_card.driver_name = SOF_DRIVER_NAME; 632 dev->driver->pm = &snd_soc_pm_ops; 633 } else { 634 byt_wm5102_card.name = CARD_NAME; 635 byt_wm5102_card.driver_name = DRIVER_NAME; 636 } 637 638 snd_soc_card_set_drvdata(&byt_wm5102_card, priv); 639 ret = devm_snd_soc_register_card(dev, &byt_wm5102_card); 640 if (ret) { 641 dev_err_probe(dev, ret, "registering card\n"); 642 goto out_put_gpio; 643 } 644 645 platform_set_drvdata(pdev, &byt_wm5102_card); 646 return 0; 647 648out_put_gpio: 649 gpiod_put(priv->spkvdd_en_gpio); 650 return ret; 651} 652 653static void snd_byt_wm5102_mc_remove(struct platform_device *pdev) 654{ 655 struct snd_soc_card *card = platform_get_drvdata(pdev); 656 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card); 657 658 gpiod_put(priv->spkvdd_en_gpio); 659} 660 661static struct platform_driver snd_byt_wm5102_mc_driver = { 662 .driver = { 663 .name = "bytcr_wm5102", 664 }, 665 .probe = snd_byt_wm5102_mc_probe, 666 .remove_new = snd_byt_wm5102_mc_remove, 667}; 668 669module_platform_driver(snd_byt_wm5102_mc_driver); 670 671MODULE_DESCRIPTION("ASoC Baytrail with WM5102 codec machine driver"); 672MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); 673MODULE_LICENSE("GPL v2"); 674MODULE_ALIAS("platform:bytcr_wm5102"); 675