1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms 4 * Cherrytrail and Braswell, with RT5645 codec. 5 * 6 * Copyright (C) 2015 Intel Corp 7 * Author: Fang, Yang A <yang.a.fang@intel.com> 8 * N,Harshapriya <harshapriya.n@intel.com> 9 * This file is modified from cht_bsw_rt5672.c 10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 11 * 12 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 13 */ 14 15#include <linux/module.h> 16#include <linux/platform_device.h> 17#include <linux/acpi.h> 18#include <linux/clk.h> 19#include <linux/dmi.h> 20#include <linux/slab.h> 21#include <sound/pcm.h> 22#include <sound/pcm_params.h> 23#include <sound/soc.h> 24#include <sound/jack.h> 25#include <sound/soc-acpi.h> 26#include "../../codecs/rt5645.h" 27#include "../atom/sst-atom-controls.h" 28#include "../common/soc-intel-quirks.h" 29 30#define CHT_PLAT_CLK_3_HZ 19200000 31#define CHT_CODEC_DAI1 "rt5645-aif1" 32#define CHT_CODEC_DAI2 "rt5645-aif2" 33 34struct cht_acpi_card { 35 char *codec_id; 36 int codec_type; 37 struct snd_soc_card *soc_card; 38}; 39 40struct cht_mc_private { 41 struct snd_soc_jack jack; 42 struct cht_acpi_card *acpi_card; 43 char codec_name[SND_ACPI_I2C_ID_LEN]; 44 struct clk *mclk; 45}; 46 47#define CHT_RT5645_MAP(quirk) ((quirk) & GENMASK(7, 0)) 48#define CHT_RT5645_SSP2_AIF2 BIT(16) /* default is using AIF1 */ 49#define CHT_RT5645_SSP0_AIF1 BIT(17) 50#define CHT_RT5645_SSP0_AIF2 BIT(18) 51#define CHT_RT5645_PMC_PLT_CLK_0 BIT(19) 52 53static unsigned long cht_rt5645_quirk = 0; 54 55static void log_quirks(struct device *dev) 56{ 57 if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) 58 dev_info(dev, "quirk SSP2_AIF2 enabled"); 59 if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) 60 dev_info(dev, "quirk SSP0_AIF1 enabled"); 61 if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2) 62 dev_info(dev, "quirk SSP0_AIF2 enabled"); 63 if (cht_rt5645_quirk & CHT_RT5645_PMC_PLT_CLK_0) 64 dev_info(dev, "quirk PMC_PLT_CLK_0 enabled"); 65} 66 67static int platform_clock_control(struct snd_soc_dapm_widget *w, 68 struct snd_kcontrol *k, int event) 69{ 70 struct snd_soc_dapm_context *dapm = w->dapm; 71 struct snd_soc_card *card = dapm->card; 72 struct snd_soc_dai *codec_dai; 73 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 74 int ret; 75 76 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI1); 77 if (!codec_dai) 78 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI2); 79 80 if (!codec_dai) { 81 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); 82 return -EIO; 83 } 84 85 if (SND_SOC_DAPM_EVENT_ON(event)) { 86 ret = clk_prepare_enable(ctx->mclk); 87 if (ret < 0) { 88 dev_err(card->dev, 89 "could not configure MCLK state"); 90 return ret; 91 } 92 } else { 93 /* Set codec sysclk source to its internal clock because codec PLL will 94 * be off when idle and MCLK will also be off when codec is 95 * runtime suspended. Codec needs clock for jack detection and button 96 * press. MCLK is turned off with clock framework or ACPI. 97 */ 98 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, 99 48000 * 512, SND_SOC_CLOCK_IN); 100 if (ret < 0) { 101 dev_err(card->dev, "can't set codec sysclk: %d\n", ret); 102 return ret; 103 } 104 105 clk_disable_unprepare(ctx->mclk); 106 } 107 108 return 0; 109} 110 111static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 112 SND_SOC_DAPM_HP("Headphone", NULL), 113 SND_SOC_DAPM_MIC("Headset Mic", NULL), 114 SND_SOC_DAPM_MIC("Int Mic", NULL), 115 SND_SOC_DAPM_MIC("Int Analog Mic", NULL), 116 SND_SOC_DAPM_SPK("Ext Spk", NULL), 117 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 118 platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 119}; 120 121static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { 122 {"IN1P", NULL, "Headset Mic"}, 123 {"IN1N", NULL, "Headset Mic"}, 124 {"DMIC L1", NULL, "Int Mic"}, 125 {"DMIC R1", NULL, "Int Mic"}, 126 {"IN2P", NULL, "Int Analog Mic"}, 127 {"IN2N", NULL, "Int Analog Mic"}, 128 {"Headphone", NULL, "HPOL"}, 129 {"Headphone", NULL, "HPOR"}, 130 {"Ext Spk", NULL, "SPOL"}, 131 {"Ext Spk", NULL, "SPOR"}, 132 {"Headphone", NULL, "Platform Clock"}, 133 {"Headset Mic", NULL, "Platform Clock"}, 134 {"Int Mic", NULL, "Platform Clock"}, 135 {"Int Analog Mic", NULL, "Platform Clock"}, 136 {"Int Analog Mic", NULL, "micbias1"}, 137 {"Int Analog Mic", NULL, "micbias2"}, 138 {"Ext Spk", NULL, "Platform Clock"}, 139}; 140 141static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = { 142 {"IN1P", NULL, "Headset Mic"}, 143 {"IN1N", NULL, "Headset Mic"}, 144 {"DMIC L2", NULL, "Int Mic"}, 145 {"DMIC R2", NULL, "Int Mic"}, 146 {"Headphone", NULL, "HPOL"}, 147 {"Headphone", NULL, "HPOR"}, 148 {"Ext Spk", NULL, "SPOL"}, 149 {"Ext Spk", NULL, "SPOR"}, 150 {"Headphone", NULL, "Platform Clock"}, 151 {"Headset Mic", NULL, "Platform Clock"}, 152 {"Int Mic", NULL, "Platform Clock"}, 153 {"Ext Spk", NULL, "Platform Clock"}, 154}; 155 156static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif1_map[] = { 157 {"AIF1 Playback", NULL, "ssp2 Tx"}, 158 {"ssp2 Tx", NULL, "codec_out0"}, 159 {"ssp2 Tx", NULL, "codec_out1"}, 160 {"codec_in0", NULL, "ssp2 Rx" }, 161 {"codec_in1", NULL, "ssp2 Rx" }, 162 {"ssp2 Rx", NULL, "AIF1 Capture"}, 163}; 164 165static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif2_map[] = { 166 {"AIF2 Playback", NULL, "ssp2 Tx"}, 167 {"ssp2 Tx", NULL, "codec_out0"}, 168 {"ssp2 Tx", NULL, "codec_out1"}, 169 {"codec_in0", NULL, "ssp2 Rx" }, 170 {"codec_in1", NULL, "ssp2 Rx" }, 171 {"ssp2 Rx", NULL, "AIF2 Capture"}, 172}; 173 174static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif1_map[] = { 175 {"AIF1 Playback", NULL, "ssp0 Tx"}, 176 {"ssp0 Tx", NULL, "modem_out"}, 177 {"modem_in", NULL, "ssp0 Rx" }, 178 {"ssp0 Rx", NULL, "AIF1 Capture"}, 179}; 180 181static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif2_map[] = { 182 {"AIF2 Playback", NULL, "ssp0 Tx"}, 183 {"ssp0 Tx", NULL, "modem_out"}, 184 {"modem_in", NULL, "ssp0 Rx" }, 185 {"ssp0 Rx", NULL, "AIF2 Capture"}, 186}; 187 188static const struct snd_kcontrol_new cht_mc_controls[] = { 189 SOC_DAPM_PIN_SWITCH("Headphone"), 190 SOC_DAPM_PIN_SWITCH("Headset Mic"), 191 SOC_DAPM_PIN_SWITCH("Int Mic"), 192 SOC_DAPM_PIN_SWITCH("Int Analog Mic"), 193 SOC_DAPM_PIN_SWITCH("Ext Spk"), 194}; 195 196static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { 197 { 198 .pin = "Headphone", 199 .mask = SND_JACK_HEADPHONE, 200 }, 201 { 202 .pin = "Headset Mic", 203 .mask = SND_JACK_MICROPHONE, 204 }, 205}; 206 207static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 208 struct snd_pcm_hw_params *params) 209{ 210 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 211 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 212 int ret; 213 214 /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ 215 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, 216 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); 217 if (ret < 0) { 218 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 219 return ret; 220 } 221 222 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 223 params_rate(params) * 512, SND_SOC_CLOCK_IN); 224 if (ret < 0) { 225 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 226 return ret; 227 } 228 229 return 0; 230} 231 232static int cht_rt5645_quirk_cb(const struct dmi_system_id *id) 233{ 234 cht_rt5645_quirk = (unsigned long)id->driver_data; 235 return 1; 236} 237 238static const struct dmi_system_id cht_rt5645_quirk_table[] = { 239 { 240 /* Strago family Chromebooks */ 241 .callback = cht_rt5645_quirk_cb, 242 .matches = { 243 DMI_MATCH(DMI_PRODUCT_FAMILY, "Intel_Strago"), 244 }, 245 .driver_data = (void *)CHT_RT5645_PMC_PLT_CLK_0, 246 }, 247 { 248 }, 249}; 250 251static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 252{ 253 struct snd_soc_card *card = runtime->card; 254 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 255 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; 256 int jack_type; 257 int ret; 258 259 if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) || 260 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) { 261 /* Select clk_i2s2_asrc as ASRC clock source */ 262 rt5645_sel_asrc_clk_src(component, 263 RT5645_DA_STEREO_FILTER | 264 RT5645_DA_MONO_L_FILTER | 265 RT5645_DA_MONO_R_FILTER | 266 RT5645_AD_STEREO_FILTER, 267 RT5645_CLK_SEL_I2S2_ASRC); 268 } else { 269 /* Select clk_i2s1_asrc as ASRC clock source */ 270 rt5645_sel_asrc_clk_src(component, 271 RT5645_DA_STEREO_FILTER | 272 RT5645_DA_MONO_L_FILTER | 273 RT5645_DA_MONO_R_FILTER | 274 RT5645_AD_STEREO_FILTER, 275 RT5645_CLK_SEL_I2S1_ASRC); 276 } 277 278 if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) { 279 ret = snd_soc_dapm_add_routes(&card->dapm, 280 cht_rt5645_ssp2_aif2_map, 281 ARRAY_SIZE(cht_rt5645_ssp2_aif2_map)); 282 } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) { 283 ret = snd_soc_dapm_add_routes(&card->dapm, 284 cht_rt5645_ssp0_aif1_map, 285 ARRAY_SIZE(cht_rt5645_ssp0_aif1_map)); 286 } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2) { 287 ret = snd_soc_dapm_add_routes(&card->dapm, 288 cht_rt5645_ssp0_aif2_map, 289 ARRAY_SIZE(cht_rt5645_ssp0_aif2_map)); 290 } else { 291 ret = snd_soc_dapm_add_routes(&card->dapm, 292 cht_rt5645_ssp2_aif1_map, 293 ARRAY_SIZE(cht_rt5645_ssp2_aif1_map)); 294 } 295 if (ret) 296 return ret; 297 298 if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) 299 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 300 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 301 SND_JACK_BTN_2 | SND_JACK_BTN_3; 302 else 303 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 304 305 ret = snd_soc_card_jack_new(runtime->card, "Headset", 306 jack_type, &ctx->jack, 307 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); 308 if (ret) { 309 dev_err(runtime->dev, "Headset jack creation failed %d\n", ret); 310 return ret; 311 } 312 313 rt5645_set_jack_detect(component, &ctx->jack, &ctx->jack, &ctx->jack); 314 315 316 /* 317 * The firmware might enable the clock at 318 * boot (this information may or may not 319 * be reflected in the enable clock register). 320 * To change the rate we must disable the clock 321 * first to cover these cases. Due to common 322 * clock framework restrictions that do not allow 323 * to disable a clock that has not been enabled, 324 * we need to enable the clock first. 325 */ 326 ret = clk_prepare_enable(ctx->mclk); 327 if (!ret) 328 clk_disable_unprepare(ctx->mclk); 329 330 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ); 331 332 if (ret) 333 dev_err(runtime->dev, "unable to set MCLK rate\n"); 334 335 return ret; 336} 337 338static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 339 struct snd_pcm_hw_params *params) 340{ 341 int ret; 342 struct snd_interval *rate = hw_param_interval(params, 343 SNDRV_PCM_HW_PARAM_RATE); 344 struct snd_interval *channels = hw_param_interval(params, 345 SNDRV_PCM_HW_PARAM_CHANNELS); 346 347 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 348 rate->min = rate->max = 48000; 349 channels->min = channels->max = 2; 350 351 if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) || 352 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) { 353 354 /* set SSP0 to 16-bit */ 355 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); 356 357 /* 358 * Default mode for SSP configuration is TDM 4 slot, override config 359 * with explicit setting to I2S 2ch 16-bit. The word length is set with 360 * dai_set_tdm_slot() since there is no other API exposed 361 */ 362 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), 363 SND_SOC_DAIFMT_I2S | 364 SND_SOC_DAIFMT_NB_NF | 365 SND_SOC_DAIFMT_CBS_CFS 366 ); 367 if (ret < 0) { 368 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 369 return ret; 370 } 371 372 ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), 373 SND_SOC_DAIFMT_I2S | 374 SND_SOC_DAIFMT_NB_NF | 375 SND_SOC_DAIFMT_CBS_CFS 376 ); 377 if (ret < 0) { 378 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 379 return ret; 380 } 381 382 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16); 383 if (ret < 0) { 384 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 385 return ret; 386 } 387 388 } else { 389 390 /* set SSP2 to 24-bit */ 391 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 392 393 /* 394 * Default mode for SSP configuration is TDM 4 slot 395 */ 396 ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), 397 SND_SOC_DAIFMT_DSP_B | 398 SND_SOC_DAIFMT_IB_NF | 399 SND_SOC_DAIFMT_CBS_CFS); 400 if (ret < 0) { 401 dev_err(rtd->dev, "can't set format to TDM %d\n", ret); 402 return ret; 403 } 404 405 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 406 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xF, 0xF, 4, 24); 407 if (ret < 0) { 408 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret); 409 return ret; 410 } 411 } 412 return 0; 413} 414 415static int cht_aif1_startup(struct snd_pcm_substream *substream) 416{ 417 return snd_pcm_hw_constraint_single(substream->runtime, 418 SNDRV_PCM_HW_PARAM_RATE, 48000); 419} 420 421static const struct snd_soc_ops cht_aif1_ops = { 422 .startup = cht_aif1_startup, 423}; 424 425static const struct snd_soc_ops cht_be_ssp2_ops = { 426 .hw_params = cht_aif1_hw_params, 427}; 428 429SND_SOC_DAILINK_DEF(dummy, 430 DAILINK_COMP_ARRAY(COMP_DUMMY())); 431 432SND_SOC_DAILINK_DEF(media, 433 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); 434 435SND_SOC_DAILINK_DEF(deepbuffer, 436 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); 437 438SND_SOC_DAILINK_DEF(ssp2_port, 439 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); 440SND_SOC_DAILINK_DEF(ssp2_codec, 441 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5645:00", "rt5645-aif1"))); 442 443SND_SOC_DAILINK_DEF(platform, 444 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); 445 446static struct snd_soc_dai_link cht_dailink[] = { 447 [MERR_DPCM_AUDIO] = { 448 .name = "Audio Port", 449 .stream_name = "Audio", 450 .nonatomic = true, 451 .dynamic = 1, 452 .dpcm_playback = 1, 453 .dpcm_capture = 1, 454 .ops = &cht_aif1_ops, 455 SND_SOC_DAILINK_REG(media, dummy, platform), 456 }, 457 [MERR_DPCM_DEEP_BUFFER] = { 458 .name = "Deep-Buffer Audio Port", 459 .stream_name = "Deep-Buffer Audio", 460 .nonatomic = true, 461 .dynamic = 1, 462 .dpcm_playback = 1, 463 .ops = &cht_aif1_ops, 464 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), 465 }, 466 /* CODEC<->CODEC link */ 467 /* back ends */ 468 { 469 .name = "SSP2-Codec", 470 .id = 0, 471 .no_pcm = 1, 472 .init = cht_codec_init, 473 .be_hw_params_fixup = cht_codec_fixup, 474 .nonatomic = true, 475 .dpcm_playback = 1, 476 .dpcm_capture = 1, 477 .ops = &cht_be_ssp2_ops, 478 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), 479 }, 480}; 481 482#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 483/* use space before codec name to simplify card ID, and simplify driver name */ 484#define CARD_RT5645_NAME "bytcht rt5645" /* card name 'sof-bytcht rt5645' */ 485#define CARD_RT5650_NAME "bytcht rt5650" /* card name 'sof-bytcht rt5650' */ 486#define DRIVER_NAME "SOF" 487#else 488#define CARD_RT5645_NAME "chtrt5645" 489#define CARD_RT5650_NAME "chtrt5650" 490#define DRIVER_NAME NULL /* card name will be used for driver name */ 491#endif 492 493/* SoC card */ 494static struct snd_soc_card snd_soc_card_chtrt5645 = { 495 .name = CARD_RT5645_NAME, 496 .driver_name = DRIVER_NAME, 497 .owner = THIS_MODULE, 498 .dai_link = cht_dailink, 499 .num_links = ARRAY_SIZE(cht_dailink), 500 .dapm_widgets = cht_dapm_widgets, 501 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 502 .dapm_routes = cht_rt5645_audio_map, 503 .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map), 504 .controls = cht_mc_controls, 505 .num_controls = ARRAY_SIZE(cht_mc_controls), 506}; 507 508static struct snd_soc_card snd_soc_card_chtrt5650 = { 509 .name = CARD_RT5650_NAME, 510 .driver_name = DRIVER_NAME, 511 .owner = THIS_MODULE, 512 .dai_link = cht_dailink, 513 .num_links = ARRAY_SIZE(cht_dailink), 514 .dapm_widgets = cht_dapm_widgets, 515 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 516 .dapm_routes = cht_rt5650_audio_map, 517 .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map), 518 .controls = cht_mc_controls, 519 .num_controls = ARRAY_SIZE(cht_mc_controls), 520}; 521 522static struct cht_acpi_card snd_soc_cards[] = { 523 {"10EC5640", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 524 {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 525 {"10EC5648", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 526 {"10EC3270", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, 527 {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650}, 528}; 529 530static char cht_rt5645_codec_name[SND_ACPI_I2C_ID_LEN]; 531 532struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */ 533 u64 aif_value; /* 1: AIF1, 2: AIF2 */ 534 u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */ 535}; 536 537static int snd_cht_mc_probe(struct platform_device *pdev) 538{ 539 struct snd_soc_card *card = snd_soc_cards[0].soc_card; 540 struct snd_soc_acpi_mach *mach; 541 const char *platform_name; 542 struct cht_mc_private *drv; 543 struct acpi_device *adev; 544 bool found = false; 545 bool is_bytcr = false; 546 int dai_index = 0; 547 int ret_val = 0; 548 int i; 549 const char *mclk_name; 550 551 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); 552 if (!drv) 553 return -ENOMEM; 554 555 mach = pdev->dev.platform_data; 556 557 for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { 558 if (acpi_dev_found(snd_soc_cards[i].codec_id) && 559 (!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) { 560 dev_dbg(&pdev->dev, 561 "found codec %s\n", snd_soc_cards[i].codec_id); 562 card = snd_soc_cards[i].soc_card; 563 drv->acpi_card = &snd_soc_cards[i]; 564 found = true; 565 break; 566 } 567 } 568 569 if (!found) { 570 dev_err(&pdev->dev, "No matching HID found in supported list\n"); 571 return -ENODEV; 572 } 573 574 card->dev = &pdev->dev; 575 sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id); 576 577 /* set correct codec name */ 578 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) 579 if (!strcmp(card->dai_link[i].codecs->name, 580 "i2c-10EC5645:00")) { 581 card->dai_link[i].codecs->name = drv->codec_name; 582 dai_index = i; 583 } 584 585 /* fixup codec name based on HID */ 586 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); 587 if (adev) { 588 snprintf(cht_rt5645_codec_name, sizeof(cht_rt5645_codec_name), 589 "i2c-%s", acpi_dev_name(adev)); 590 put_device(&adev->dev); 591 cht_dailink[dai_index].codecs->name = cht_rt5645_codec_name; 592 } 593 594 /* 595 * swap SSP0 if bytcr is detected 596 * (will be overridden if DMI quirk is detected) 597 */ 598 if (soc_intel_is_byt()) { 599 if (mach->mach_params.acpi_ipc_irq_index == 0) 600 is_bytcr = true; 601 } 602 603 if (is_bytcr) { 604 /* 605 * Baytrail CR platforms may have CHAN package in BIOS, try 606 * to find relevant routing quirk based as done on Windows 607 * platforms. We have to read the information directly from the 608 * BIOS, at this stage the card is not created and the links 609 * with the codec driver/pdata are non-existent 610 */ 611 612 struct acpi_chan_package chan_package; 613 614 /* format specified: 2 64-bit integers */ 615 struct acpi_buffer format = {sizeof("NN"), "NN"}; 616 struct acpi_buffer state = {0, NULL}; 617 struct snd_soc_acpi_package_context pkg_ctx; 618 bool pkg_found = false; 619 620 state.length = sizeof(chan_package); 621 state.pointer = &chan_package; 622 623 pkg_ctx.name = "CHAN"; 624 pkg_ctx.length = 2; 625 pkg_ctx.format = &format; 626 pkg_ctx.state = &state; 627 pkg_ctx.data_valid = false; 628 629 pkg_found = snd_soc_acpi_find_package_from_hid(mach->id, 630 &pkg_ctx); 631 if (pkg_found) { 632 if (chan_package.aif_value == 1) { 633 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n"); 634 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF1; 635 } else if (chan_package.aif_value == 2) { 636 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n"); 637 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2; 638 } else { 639 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n"); 640 pkg_found = false; 641 } 642 } 643 644 if (!pkg_found) { 645 /* no BIOS indications, assume SSP0-AIF2 connection */ 646 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2; 647 } 648 } 649 650 /* check quirks before creating card */ 651 dmi_check_system(cht_rt5645_quirk_table); 652 log_quirks(&pdev->dev); 653 654 if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) || 655 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) 656 cht_dailink[dai_index].codecs->dai_name = "rt5645-aif2"; 657 658 if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) || 659 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) 660 cht_dailink[dai_index].cpus->dai_name = "ssp0-port"; 661 662 /* override plaform name, if required */ 663 platform_name = mach->mach_params.platform; 664 665 ret_val = snd_soc_fixup_dai_links_platform_name(card, 666 platform_name); 667 if (ret_val) 668 return ret_val; 669 670 if (cht_rt5645_quirk & CHT_RT5645_PMC_PLT_CLK_0) 671 mclk_name = "pmc_plt_clk_0"; 672 else 673 mclk_name = "pmc_plt_clk_3"; 674 675 drv->mclk = devm_clk_get(&pdev->dev, mclk_name); 676 if (IS_ERR(drv->mclk)) { 677 dev_err(&pdev->dev, "Failed to get MCLK from %s: %ld\n", 678 mclk_name, PTR_ERR(drv->mclk)); 679 return PTR_ERR(drv->mclk); 680 } 681 682 snd_soc_card_set_drvdata(card, drv); 683 ret_val = devm_snd_soc_register_card(&pdev->dev, card); 684 if (ret_val) { 685 dev_err(&pdev->dev, 686 "snd_soc_register_card failed %d\n", ret_val); 687 return ret_val; 688 } 689 platform_set_drvdata(pdev, card); 690 return ret_val; 691} 692 693static struct platform_driver snd_cht_mc_driver = { 694 .driver = { 695 .name = "cht-bsw-rt5645", 696#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 697 .pm = &snd_soc_pm_ops, 698#endif 699 }, 700 .probe = snd_cht_mc_probe, 701}; 702 703module_platform_driver(snd_cht_mc_driver) 704 705MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 706MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); 707MODULE_LICENSE("GPL v2"); 708MODULE_ALIAS("platform:cht-bsw-rt5645"); 709