1// SPDX-License-Identifier: GPL-2.0 2// 3// rt700.c -- rt700 ALSA SoC audio driver 4// 5// Copyright(c) 2019 Realtek Semiconductor Corp. 6// 7// 8 9#include <linux/module.h> 10#include <linux/moduleparam.h> 11#include <linux/kernel.h> 12#include <linux/init.h> 13#include <linux/delay.h> 14#include <linux/pm_runtime.h> 15#include <linux/pm.h> 16#include <linux/soundwire/sdw.h> 17#include <linux/regmap.h> 18#include <linux/slab.h> 19#include <sound/core.h> 20#include <sound/pcm.h> 21#include <sound/pcm_params.h> 22#include <sound/sdw.h> 23#include <sound/soc.h> 24#include <sound/soc-dapm.h> 25#include <sound/initval.h> 26#include <sound/tlv.h> 27#include <sound/hda_verbs.h> 28#include <sound/jack.h> 29 30#include "rt700.h" 31 32static int rt700_index_write(struct regmap *regmap, 33 unsigned int reg, unsigned int value) 34{ 35 int ret; 36 unsigned int addr = (RT700_PRIV_INDEX_W_H << 8) | reg; 37 38 ret = regmap_write(regmap, addr, value); 39 if (ret < 0) 40 pr_err("%s: Failed to set private value: %06x <= %04x ret=%d\n", 41 __func__, addr, value, ret); 42 43 return ret; 44} 45 46static int rt700_index_read(struct regmap *regmap, 47 unsigned int reg, unsigned int *value) 48{ 49 int ret; 50 unsigned int addr = (RT700_PRIV_INDEX_W_H << 8) | reg; 51 52 *value = 0; 53 ret = regmap_read(regmap, addr, value); 54 if (ret < 0) 55 pr_err("%s: Failed to get private value: %06x => %04x ret=%d\n", 56 __func__, addr, *value, ret); 57 58 return ret; 59} 60 61static unsigned int rt700_button_detect(struct rt700_priv *rt700) 62{ 63 unsigned int btn_type = 0, val80, val81; 64 int ret; 65 66 ret = rt700_index_read(rt700->regmap, RT700_IRQ_FLAG_TABLE1, &val80); 67 if (ret < 0) 68 goto read_error; 69 ret = rt700_index_read(rt700->regmap, RT700_IRQ_FLAG_TABLE2, &val81); 70 if (ret < 0) 71 goto read_error; 72 73 val80 &= 0x0381; 74 val81 &= 0xff00; 75 76 switch (val80) { 77 case 0x0200: 78 case 0x0100: 79 case 0x0080: 80 btn_type |= SND_JACK_BTN_0; 81 break; 82 case 0x0001: 83 btn_type |= SND_JACK_BTN_3; 84 break; 85 } 86 switch (val81) { 87 case 0x8000: 88 case 0x4000: 89 case 0x2000: 90 btn_type |= SND_JACK_BTN_1; 91 break; 92 case 0x1000: 93 case 0x0800: 94 case 0x0400: 95 btn_type |= SND_JACK_BTN_2; 96 break; 97 case 0x0200: 98 case 0x0100: 99 btn_type |= SND_JACK_BTN_3; 100 break; 101 } 102read_error: 103 return btn_type; 104} 105 106static int rt700_headset_detect(struct rt700_priv *rt700) 107{ 108 unsigned int buf, loop = 0; 109 int ret; 110 unsigned int jack_status = 0, reg; 111 112 ret = rt700_index_read(rt700->regmap, 113 RT700_COMBO_JACK_AUTO_CTL2, &buf); 114 if (ret < 0) 115 goto io_error; 116 117 while (loop < 500 && 118 (buf & RT700_COMBOJACK_AUTO_DET_STATUS) == 0) { 119 loop++; 120 121 usleep_range(9000, 10000); 122 ret = rt700_index_read(rt700->regmap, 123 RT700_COMBO_JACK_AUTO_CTL2, &buf); 124 if (ret < 0) 125 goto io_error; 126 127 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT; 128 ret = regmap_read(rt700->regmap, reg, &jack_status); 129 if ((jack_status & (1 << 31)) == 0) 130 goto remove_error; 131 } 132 133 if (loop >= 500) 134 goto to_error; 135 136 if (buf & RT700_COMBOJACK_AUTO_DET_TRS) 137 rt700->jack_type = SND_JACK_HEADPHONE; 138 else if ((buf & RT700_COMBOJACK_AUTO_DET_CTIA) || 139 (buf & RT700_COMBOJACK_AUTO_DET_OMTP)) 140 rt700->jack_type = SND_JACK_HEADSET; 141 142 return 0; 143 144to_error: 145 ret = -ETIMEDOUT; 146 pr_err_ratelimited("Time-out error in %s\n", __func__); 147 return ret; 148io_error: 149 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret); 150 return ret; 151remove_error: 152 pr_err_ratelimited("Jack removal in %s\n", __func__); 153 return -ENODEV; 154} 155 156static void rt700_jack_detect_handler(struct work_struct *work) 157{ 158 struct rt700_priv *rt700 = 159 container_of(work, struct rt700_priv, jack_detect_work.work); 160 int btn_type = 0, ret; 161 unsigned int jack_status = 0, reg; 162 163 if (!rt700->hs_jack) 164 return; 165 166 if (!snd_soc_card_is_instantiated(rt700->component->card)) 167 return; 168 169 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT; 170 ret = regmap_read(rt700->regmap, reg, &jack_status); 171 if (ret < 0) 172 goto io_error; 173 174 /* pin attached */ 175 if (jack_status & (1 << 31)) { 176 /* jack in */ 177 if (rt700->jack_type == 0) { 178 ret = rt700_headset_detect(rt700); 179 if (ret < 0) 180 return; 181 if (rt700->jack_type == SND_JACK_HEADSET) 182 btn_type = rt700_button_detect(rt700); 183 } else if (rt700->jack_type == SND_JACK_HEADSET) { 184 /* jack is already in, report button event */ 185 btn_type = rt700_button_detect(rt700); 186 } 187 } else { 188 /* jack out */ 189 rt700->jack_type = 0; 190 } 191 192 dev_dbg(&rt700->slave->dev, 193 "in %s, jack_type=0x%x\n", __func__, rt700->jack_type); 194 dev_dbg(&rt700->slave->dev, 195 "in %s, btn_type=0x%x\n", __func__, btn_type); 196 197 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type | btn_type, 198 SND_JACK_HEADSET | 199 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 200 SND_JACK_BTN_2 | SND_JACK_BTN_3); 201 202 if (btn_type) { 203 /* button released */ 204 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type, 205 SND_JACK_HEADSET | 206 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 207 SND_JACK_BTN_2 | SND_JACK_BTN_3); 208 209 mod_delayed_work(system_power_efficient_wq, 210 &rt700->jack_btn_check_work, msecs_to_jiffies(200)); 211 } 212 213 return; 214 215io_error: 216 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret); 217} 218 219static void rt700_btn_check_handler(struct work_struct *work) 220{ 221 struct rt700_priv *rt700 = container_of(work, struct rt700_priv, 222 jack_btn_check_work.work); 223 int btn_type = 0, ret; 224 unsigned int jack_status = 0, reg; 225 226 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT; 227 ret = regmap_read(rt700->regmap, reg, &jack_status); 228 if (ret < 0) 229 goto io_error; 230 231 /* pin attached */ 232 if (jack_status & (1 << 31)) { 233 if (rt700->jack_type == SND_JACK_HEADSET) { 234 /* jack is already in, report button event */ 235 btn_type = rt700_button_detect(rt700); 236 } 237 } else { 238 rt700->jack_type = 0; 239 } 240 241 /* cbj comparator */ 242 ret = rt700_index_read(rt700->regmap, RT700_COMBO_JACK_AUTO_CTL2, ®); 243 if (ret < 0) 244 goto io_error; 245 246 if ((reg & 0xf0) == 0xf0) 247 btn_type = 0; 248 249 dev_dbg(&rt700->slave->dev, 250 "%s, btn_type=0x%x\n", __func__, btn_type); 251 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type | btn_type, 252 SND_JACK_HEADSET | 253 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 254 SND_JACK_BTN_2 | SND_JACK_BTN_3); 255 256 if (btn_type) { 257 /* button released */ 258 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type, 259 SND_JACK_HEADSET | 260 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 261 SND_JACK_BTN_2 | SND_JACK_BTN_3); 262 263 mod_delayed_work(system_power_efficient_wq, 264 &rt700->jack_btn_check_work, msecs_to_jiffies(200)); 265 } 266 267 return; 268 269io_error: 270 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret); 271} 272 273static void rt700_jack_init(struct rt700_priv *rt700) 274{ 275 struct snd_soc_dapm_context *dapm = 276 snd_soc_component_get_dapm(rt700->component); 277 278 /* power on */ 279 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY) 280 regmap_write(rt700->regmap, 281 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0); 282 283 if (rt700->hs_jack) { 284 /* Enable Jack Detection */ 285 regmap_write(rt700->regmap, 286 RT700_SET_MIC2_UNSOLICITED_ENABLE, 0x82); 287 regmap_write(rt700->regmap, 288 RT700_SET_HP_UNSOLICITED_ENABLE, 0x81); 289 regmap_write(rt700->regmap, 290 RT700_SET_INLINE_UNSOLICITED_ENABLE, 0x83); 291 rt700_index_write(rt700->regmap, 0x10, 0x2420); 292 rt700_index_write(rt700->regmap, 0x19, 0x2e11); 293 294 dev_dbg(&rt700->slave->dev, "in %s enable\n", __func__); 295 296 mod_delayed_work(system_power_efficient_wq, 297 &rt700->jack_detect_work, msecs_to_jiffies(250)); 298 } else { 299 regmap_write(rt700->regmap, 300 RT700_SET_MIC2_UNSOLICITED_ENABLE, 0x00); 301 regmap_write(rt700->regmap, 302 RT700_SET_HP_UNSOLICITED_ENABLE, 0x00); 303 regmap_write(rt700->regmap, 304 RT700_SET_INLINE_UNSOLICITED_ENABLE, 0x00); 305 306 dev_dbg(&rt700->slave->dev, "in %s disable\n", __func__); 307 } 308 309 /* power off */ 310 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY) 311 regmap_write(rt700->regmap, 312 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3); 313} 314 315static int rt700_set_jack_detect(struct snd_soc_component *component, 316 struct snd_soc_jack *hs_jack, void *data) 317{ 318 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 319 int ret; 320 321 rt700->hs_jack = hs_jack; 322 323 /* we can only resume if the device was initialized at least once */ 324 if (!rt700->first_hw_init) 325 return 0; 326 327 ret = pm_runtime_resume_and_get(component->dev); 328 if (ret < 0) { 329 if (ret != -EACCES) { 330 dev_err(component->dev, "%s: failed to resume %d\n", __func__, ret); 331 return ret; 332 } 333 334 /* pm_runtime not enabled yet */ 335 dev_dbg(component->dev, "%s: skipping jack init for now\n", __func__); 336 return 0; 337 } 338 339 rt700_jack_init(rt700); 340 341 pm_runtime_mark_last_busy(component->dev); 342 pm_runtime_put_autosuspend(component->dev); 343 344 return 0; 345} 346 347static void rt700_get_gain(struct rt700_priv *rt700, unsigned int addr_h, 348 unsigned int addr_l, unsigned int val_h, 349 unsigned int *r_val, unsigned int *l_val) 350{ 351 /* R Channel */ 352 *r_val = (val_h << 8); 353 regmap_read(rt700->regmap, addr_l, r_val); 354 355 /* L Channel */ 356 val_h |= 0x20; 357 *l_val = (val_h << 8); 358 regmap_read(rt700->regmap, addr_h, l_val); 359} 360 361/* For Verb-Set Amplifier Gain (Verb ID = 3h) */ 362static int rt700_set_amp_gain_put(struct snd_kcontrol *kcontrol, 363 struct snd_ctl_elem_value *ucontrol) 364{ 365 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 366 struct snd_soc_dapm_context *dapm = 367 snd_soc_component_get_dapm(component); 368 struct soc_mixer_control *mc = 369 (struct soc_mixer_control *)kcontrol->private_value; 370 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 371 unsigned int addr_h, addr_l, val_h, val_ll, val_lr; 372 unsigned int read_ll, read_rl; 373 int i; 374 375 /* Can't use update bit function, so read the original value first */ 376 addr_h = mc->reg; 377 addr_l = mc->rreg; 378 if (mc->shift == RT700_DIR_OUT_SFT) /* output */ 379 val_h = 0x80; 380 else /* input */ 381 val_h = 0x0; 382 383 rt700_get_gain(rt700, addr_h, addr_l, val_h, &read_rl, &read_ll); 384 385 /* L Channel */ 386 if (mc->invert) { 387 /* for mute */ 388 val_ll = (mc->max - ucontrol->value.integer.value[0]) << 7; 389 /* keep gain */ 390 read_ll = read_ll & 0x7f; 391 val_ll |= read_ll; 392 } else { 393 /* for gain */ 394 val_ll = ((ucontrol->value.integer.value[0]) & 0x7f); 395 if (val_ll > mc->max) 396 val_ll = mc->max; 397 /* keep mute status */ 398 read_ll = read_ll & 0x80; 399 val_ll |= read_ll; 400 } 401 402 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY) 403 regmap_write(rt700->regmap, 404 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0); 405 406 /* R Channel */ 407 if (mc->invert) { 408 /* for mute */ 409 val_lr = (mc->max - ucontrol->value.integer.value[1]) << 7; 410 /* keep gain */ 411 read_rl = read_rl & 0x7f; 412 val_lr |= read_rl; 413 } else { 414 /* for gain */ 415 val_lr = ((ucontrol->value.integer.value[1]) & 0x7f); 416 if (val_lr > mc->max) 417 val_lr = mc->max; 418 /* keep mute status */ 419 read_rl = read_rl & 0x80; 420 val_lr |= read_rl; 421 } 422 423 for (i = 0; i < 3; i++) { /* retry 3 times at most */ 424 if (val_ll == val_lr) { 425 /* Set both L/R channels at the same time */ 426 val_h = (1 << mc->shift) | (3 << 4); 427 regmap_write(rt700->regmap, 428 addr_h, (val_h << 8 | val_ll)); 429 regmap_write(rt700->regmap, 430 addr_l, (val_h << 8 | val_ll)); 431 } else { 432 /* Lch*/ 433 val_h = (1 << mc->shift) | (1 << 5); 434 regmap_write(rt700->regmap, 435 addr_h, (val_h << 8 | val_ll)); 436 437 /* Rch */ 438 val_h = (1 << mc->shift) | (1 << 4); 439 regmap_write(rt700->regmap, 440 addr_l, (val_h << 8 | val_lr)); 441 } 442 /* check result */ 443 if (mc->shift == RT700_DIR_OUT_SFT) /* output */ 444 val_h = 0x80; 445 else /* input */ 446 val_h = 0x0; 447 448 rt700_get_gain(rt700, addr_h, addr_l, val_h, 449 &read_rl, &read_ll); 450 if (read_rl == val_lr && read_ll == val_ll) 451 break; 452 } 453 454 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY) 455 regmap_write(rt700->regmap, 456 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3); 457 return 0; 458} 459 460static int rt700_set_amp_gain_get(struct snd_kcontrol *kcontrol, 461 struct snd_ctl_elem_value *ucontrol) 462{ 463 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 464 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 465 struct soc_mixer_control *mc = 466 (struct soc_mixer_control *)kcontrol->private_value; 467 unsigned int addr_h, addr_l, val_h; 468 unsigned int read_ll, read_rl; 469 470 addr_h = mc->reg; 471 addr_l = mc->rreg; 472 if (mc->shift == RT700_DIR_OUT_SFT) /* output */ 473 val_h = 0x80; 474 else /* input */ 475 val_h = 0x0; 476 477 rt700_get_gain(rt700, addr_h, addr_l, val_h, &read_rl, &read_ll); 478 479 if (mc->invert) { 480 /* for mute status */ 481 read_ll = !((read_ll & 0x80) >> RT700_MUTE_SFT); 482 read_rl = !((read_rl & 0x80) >> RT700_MUTE_SFT); 483 } else { 484 /* for gain */ 485 read_ll = read_ll & 0x7f; 486 read_rl = read_rl & 0x7f; 487 } 488 ucontrol->value.integer.value[0] = read_ll; 489 ucontrol->value.integer.value[1] = read_rl; 490 491 return 0; 492} 493 494static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6525, 75, 0); 495static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0); 496static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0); 497 498static const struct snd_kcontrol_new rt700_snd_controls[] = { 499 SOC_DOUBLE_R_EXT_TLV("DAC Front Playback Volume", 500 RT700_SET_GAIN_DAC1_H, RT700_SET_GAIN_DAC1_L, 501 RT700_DIR_OUT_SFT, 0x57, 0, 502 rt700_set_amp_gain_get, rt700_set_amp_gain_put, out_vol_tlv), 503 SOC_DOUBLE_R_EXT("ADC 08 Capture Switch", 504 RT700_SET_GAIN_ADC2_H, RT700_SET_GAIN_ADC2_L, 505 RT700_DIR_IN_SFT, 1, 1, 506 rt700_set_amp_gain_get, rt700_set_amp_gain_put), 507 SOC_DOUBLE_R_EXT("ADC 09 Capture Switch", 508 RT700_SET_GAIN_ADC1_H, RT700_SET_GAIN_ADC1_L, 509 RT700_DIR_IN_SFT, 1, 1, 510 rt700_set_amp_gain_get, rt700_set_amp_gain_put), 511 SOC_DOUBLE_R_EXT_TLV("ADC 08 Capture Volume", 512 RT700_SET_GAIN_ADC2_H, RT700_SET_GAIN_ADC2_L, 513 RT700_DIR_IN_SFT, 0x3f, 0, 514 rt700_set_amp_gain_get, rt700_set_amp_gain_put, in_vol_tlv), 515 SOC_DOUBLE_R_EXT_TLV("ADC 09 Capture Volume", 516 RT700_SET_GAIN_ADC1_H, RT700_SET_GAIN_ADC1_L, 517 RT700_DIR_IN_SFT, 0x3f, 0, 518 rt700_set_amp_gain_get, rt700_set_amp_gain_put, in_vol_tlv), 519 SOC_DOUBLE_R_EXT_TLV("AMIC Volume", 520 RT700_SET_GAIN_AMIC_H, RT700_SET_GAIN_AMIC_L, 521 RT700_DIR_IN_SFT, 3, 0, 522 rt700_set_amp_gain_get, rt700_set_amp_gain_put, mic_vol_tlv), 523}; 524 525static int rt700_mux_get(struct snd_kcontrol *kcontrol, 526 struct snd_ctl_elem_value *ucontrol) 527{ 528 struct snd_soc_component *component = 529 snd_soc_dapm_kcontrol_component(kcontrol); 530 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 531 unsigned int reg, val = 0, nid; 532 int ret; 533 534 if (strstr(ucontrol->id.name, "HPO Mux")) 535 nid = RT700_HP_OUT; 536 else if (strstr(ucontrol->id.name, "ADC 22 Mux")) 537 nid = RT700_MIXER_IN1; 538 else if (strstr(ucontrol->id.name, "ADC 23 Mux")) 539 nid = RT700_MIXER_IN2; 540 else 541 return -EINVAL; 542 543 /* vid = 0xf01 */ 544 reg = RT700_VERB_SET_CONNECT_SEL | nid; 545 ret = regmap_read(rt700->regmap, reg, &val); 546 if (ret < 0) 547 return ret; 548 549 ucontrol->value.enumerated.item[0] = val; 550 551 return 0; 552} 553 554static int rt700_mux_put(struct snd_kcontrol *kcontrol, 555 struct snd_ctl_elem_value *ucontrol) 556{ 557 struct snd_soc_component *component = 558 snd_soc_dapm_kcontrol_component(kcontrol); 559 struct snd_soc_dapm_context *dapm = 560 snd_soc_dapm_kcontrol_dapm(kcontrol); 561 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 562 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 563 unsigned int *item = ucontrol->value.enumerated.item; 564 unsigned int val, val2 = 0, change, reg, nid; 565 int ret; 566 567 if (item[0] >= e->items) 568 return -EINVAL; 569 570 if (strstr(ucontrol->id.name, "HPO Mux")) 571 nid = RT700_HP_OUT; 572 else if (strstr(ucontrol->id.name, "ADC 22 Mux")) 573 nid = RT700_MIXER_IN1; 574 else if (strstr(ucontrol->id.name, "ADC 23 Mux")) 575 nid = RT700_MIXER_IN2; 576 else 577 return -EINVAL; 578 579 /* Verb ID = 0x701h */ 580 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; 581 582 reg = RT700_VERB_SET_CONNECT_SEL | nid; 583 ret = regmap_read(rt700->regmap, reg, &val2); 584 if (ret < 0) 585 return ret; 586 587 if (val == val2) 588 change = 0; 589 else 590 change = 1; 591 592 if (change) { 593 reg = RT700_VERB_SET_CONNECT_SEL | nid; 594 regmap_write(rt700->regmap, reg, val); 595 } 596 597 snd_soc_dapm_mux_update_power(dapm, kcontrol, 598 item[0], e, NULL); 599 600 return change; 601} 602 603static const char * const adc_mux_text[] = { 604 "MIC2", 605 "LINE1", 606 "LINE2", 607 "DMIC", 608}; 609 610static SOC_ENUM_SINGLE_DECL( 611 rt700_adc22_enum, SND_SOC_NOPM, 0, adc_mux_text); 612 613static SOC_ENUM_SINGLE_DECL( 614 rt700_adc23_enum, SND_SOC_NOPM, 0, adc_mux_text); 615 616static const struct snd_kcontrol_new rt700_adc22_mux = 617 SOC_DAPM_ENUM_EXT("ADC 22 Mux", rt700_adc22_enum, 618 rt700_mux_get, rt700_mux_put); 619 620static const struct snd_kcontrol_new rt700_adc23_mux = 621 SOC_DAPM_ENUM_EXT("ADC 23 Mux", rt700_adc23_enum, 622 rt700_mux_get, rt700_mux_put); 623 624static const char * const out_mux_text[] = { 625 "Front", 626 "Surround", 627}; 628 629static SOC_ENUM_SINGLE_DECL( 630 rt700_hp_enum, SND_SOC_NOPM, 0, out_mux_text); 631 632static const struct snd_kcontrol_new rt700_hp_mux = 633 SOC_DAPM_ENUM_EXT("HP Mux", rt700_hp_enum, 634 rt700_mux_get, rt700_mux_put); 635 636static int rt700_dac_front_event(struct snd_soc_dapm_widget *w, 637 struct snd_kcontrol *kcontrol, int event) 638{ 639 struct snd_soc_component *component = 640 snd_soc_dapm_to_component(w->dapm); 641 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 642 643 switch (event) { 644 case SND_SOC_DAPM_POST_PMU: 645 regmap_write(rt700->regmap, 646 RT700_SET_STREAMID_DAC1, 0x10); 647 break; 648 case SND_SOC_DAPM_PRE_PMD: 649 regmap_write(rt700->regmap, 650 RT700_SET_STREAMID_DAC1, 0x00); 651 break; 652 } 653 return 0; 654} 655 656static int rt700_dac_surround_event(struct snd_soc_dapm_widget *w, 657 struct snd_kcontrol *kcontrol, int event) 658{ 659 struct snd_soc_component *component = 660 snd_soc_dapm_to_component(w->dapm); 661 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 662 663 switch (event) { 664 case SND_SOC_DAPM_POST_PMU: 665 regmap_write(rt700->regmap, 666 RT700_SET_STREAMID_DAC2, 0x10); 667 break; 668 case SND_SOC_DAPM_PRE_PMD: 669 regmap_write(rt700->regmap, 670 RT700_SET_STREAMID_DAC2, 0x00); 671 break; 672 } 673 return 0; 674} 675 676static int rt700_adc_09_event(struct snd_soc_dapm_widget *w, 677 struct snd_kcontrol *kcontrol, int event) 678{ 679 struct snd_soc_component *component = 680 snd_soc_dapm_to_component(w->dapm); 681 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 682 683 switch (event) { 684 case SND_SOC_DAPM_POST_PMU: 685 regmap_write(rt700->regmap, 686 RT700_SET_STREAMID_ADC1, 0x10); 687 break; 688 case SND_SOC_DAPM_PRE_PMD: 689 regmap_write(rt700->regmap, 690 RT700_SET_STREAMID_ADC1, 0x00); 691 break; 692 } 693 return 0; 694} 695 696static int rt700_adc_08_event(struct snd_soc_dapm_widget *w, 697 struct snd_kcontrol *kcontrol, int event) 698{ 699 struct snd_soc_component *component = 700 snd_soc_dapm_to_component(w->dapm); 701 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 702 703 switch (event) { 704 case SND_SOC_DAPM_POST_PMU: 705 regmap_write(rt700->regmap, 706 RT700_SET_STREAMID_ADC2, 0x10); 707 break; 708 case SND_SOC_DAPM_PRE_PMD: 709 regmap_write(rt700->regmap, 710 RT700_SET_STREAMID_ADC2, 0x00); 711 break; 712 } 713 return 0; 714} 715 716static int rt700_hpo_mux_event(struct snd_soc_dapm_widget *w, 717 struct snd_kcontrol *kcontrol, int event) 718{ 719 struct snd_soc_component *component = 720 snd_soc_dapm_to_component(w->dapm); 721 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 722 unsigned int val_h = (1 << RT700_DIR_OUT_SFT) | (0x3 << 4); 723 unsigned int val_l; 724 725 switch (event) { 726 case SND_SOC_DAPM_POST_PMU: 727 val_l = 0x00; 728 regmap_write(rt700->regmap, 729 RT700_SET_GAIN_HP_H, (val_h << 8 | val_l)); 730 break; 731 case SND_SOC_DAPM_PRE_PMD: 732 val_l = (1 << RT700_MUTE_SFT); 733 regmap_write(rt700->regmap, 734 RT700_SET_GAIN_HP_H, (val_h << 8 | val_l)); 735 usleep_range(50000, 55000); 736 break; 737 } 738 return 0; 739} 740 741static int rt700_spk_pga_event(struct snd_soc_dapm_widget *w, 742 struct snd_kcontrol *kcontrol, int event) 743{ 744 struct snd_soc_component *component = 745 snd_soc_dapm_to_component(w->dapm); 746 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 747 unsigned int val_h = (1 << RT700_DIR_OUT_SFT) | (0x3 << 4); 748 unsigned int val_l; 749 750 switch (event) { 751 case SND_SOC_DAPM_POST_PMU: 752 val_l = 0x00; 753 regmap_write(rt700->regmap, 754 RT700_SET_GAIN_SPK_H, (val_h << 8 | val_l)); 755 break; 756 case SND_SOC_DAPM_PRE_PMD: 757 val_l = (1 << RT700_MUTE_SFT); 758 regmap_write(rt700->regmap, 759 RT700_SET_GAIN_SPK_H, (val_h << 8 | val_l)); 760 break; 761 } 762 return 0; 763} 764 765static const struct snd_soc_dapm_widget rt700_dapm_widgets[] = { 766 SND_SOC_DAPM_OUTPUT("HP"), 767 SND_SOC_DAPM_OUTPUT("SPK"), 768 SND_SOC_DAPM_INPUT("DMIC1"), 769 SND_SOC_DAPM_INPUT("DMIC2"), 770 SND_SOC_DAPM_INPUT("MIC2"), 771 SND_SOC_DAPM_INPUT("LINE1"), 772 SND_SOC_DAPM_INPUT("LINE2"), 773 SND_SOC_DAPM_DAC_E("DAC Front", NULL, SND_SOC_NOPM, 0, 0, 774 rt700_dac_front_event, 775 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 776 SND_SOC_DAPM_DAC_E("DAC Surround", NULL, SND_SOC_NOPM, 0, 0, 777 rt700_dac_surround_event, 778 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 779 SND_SOC_DAPM_MUX_E("HPO Mux", SND_SOC_NOPM, 0, 0, &rt700_hp_mux, 780 rt700_hpo_mux_event, 781 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 782 SND_SOC_DAPM_PGA_E("SPK PGA", SND_SOC_NOPM, 0, 0, NULL, 0, 783 rt700_spk_pga_event, 784 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 785 SND_SOC_DAPM_ADC_E("ADC 09", NULL, SND_SOC_NOPM, 0, 0, 786 rt700_adc_09_event, 787 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 788 SND_SOC_DAPM_ADC_E("ADC 08", NULL, SND_SOC_NOPM, 0, 0, 789 rt700_adc_08_event, 790 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 791 SND_SOC_DAPM_MUX("ADC 22 Mux", SND_SOC_NOPM, 0, 0, 792 &rt700_adc22_mux), 793 SND_SOC_DAPM_MUX("ADC 23 Mux", SND_SOC_NOPM, 0, 0, 794 &rt700_adc23_mux), 795 SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0), 796 SND_SOC_DAPM_AIF_IN("DP3RX", "DP3 Playback", 0, SND_SOC_NOPM, 0, 0), 797 SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0), 798 SND_SOC_DAPM_AIF_OUT("DP4TX", "DP4 Capture", 0, SND_SOC_NOPM, 0, 0), 799}; 800 801static const struct snd_soc_dapm_route rt700_audio_map[] = { 802 {"DAC Front", NULL, "DP1RX"}, 803 {"DAC Surround", NULL, "DP3RX"}, 804 {"DP2TX", NULL, "ADC 09"}, 805 {"DP4TX", NULL, "ADC 08"}, 806 {"ADC 09", NULL, "ADC 22 Mux"}, 807 {"ADC 08", NULL, "ADC 23 Mux"}, 808 {"ADC 22 Mux", "DMIC", "DMIC1"}, 809 {"ADC 22 Mux", "LINE1", "LINE1"}, 810 {"ADC 22 Mux", "LINE2", "LINE2"}, 811 {"ADC 22 Mux", "MIC2", "MIC2"}, 812 {"ADC 23 Mux", "DMIC", "DMIC2"}, 813 {"ADC 23 Mux", "LINE1", "LINE1"}, 814 {"ADC 23 Mux", "LINE2", "LINE2"}, 815 {"ADC 23 Mux", "MIC2", "MIC2"}, 816 {"HPO Mux", "Front", "DAC Front"}, 817 {"HPO Mux", "Surround", "DAC Surround"}, 818 {"HP", NULL, "HPO Mux"}, 819 {"SPK PGA", NULL, "DAC Front"}, 820 {"SPK", NULL, "SPK PGA"}, 821}; 822 823static int rt700_probe(struct snd_soc_component *component) 824{ 825 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 826 int ret; 827 828 rt700->component = component; 829 830 if (!rt700->first_hw_init) 831 return 0; 832 833 ret = pm_runtime_resume(component->dev); 834 if (ret < 0 && ret != -EACCES) 835 return ret; 836 837 return 0; 838} 839 840static int rt700_set_bias_level(struct snd_soc_component *component, 841 enum snd_soc_bias_level level) 842{ 843 struct snd_soc_dapm_context *dapm = 844 snd_soc_component_get_dapm(component); 845 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 846 847 switch (level) { 848 case SND_SOC_BIAS_PREPARE: 849 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) { 850 regmap_write(rt700->regmap, 851 RT700_SET_AUDIO_POWER_STATE, 852 AC_PWRST_D0); 853 } 854 break; 855 856 case SND_SOC_BIAS_STANDBY: 857 regmap_write(rt700->regmap, 858 RT700_SET_AUDIO_POWER_STATE, 859 AC_PWRST_D3); 860 break; 861 862 default: 863 break; 864 } 865 dapm->bias_level = level; 866 return 0; 867} 868 869static const struct snd_soc_component_driver soc_codec_dev_rt700 = { 870 .probe = rt700_probe, 871 .set_bias_level = rt700_set_bias_level, 872 .controls = rt700_snd_controls, 873 .num_controls = ARRAY_SIZE(rt700_snd_controls), 874 .dapm_widgets = rt700_dapm_widgets, 875 .num_dapm_widgets = ARRAY_SIZE(rt700_dapm_widgets), 876 .dapm_routes = rt700_audio_map, 877 .num_dapm_routes = ARRAY_SIZE(rt700_audio_map), 878 .set_jack = rt700_set_jack_detect, 879 .endianness = 1, 880}; 881 882static int rt700_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, 883 int direction) 884{ 885 snd_soc_dai_dma_data_set(dai, direction, sdw_stream); 886 887 return 0; 888} 889 890static void rt700_shutdown(struct snd_pcm_substream *substream, 891 struct snd_soc_dai *dai) 892{ 893 snd_soc_dai_set_dma_data(dai, substream, NULL); 894} 895 896static int rt700_pcm_hw_params(struct snd_pcm_substream *substream, 897 struct snd_pcm_hw_params *params, 898 struct snd_soc_dai *dai) 899{ 900 struct snd_soc_component *component = dai->component; 901 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 902 struct sdw_stream_config stream_config = {0}; 903 struct sdw_port_config port_config = {0}; 904 struct sdw_stream_runtime *sdw_stream; 905 int retval; 906 unsigned int val = 0; 907 908 dev_dbg(dai->dev, "%s %s", __func__, dai->name); 909 sdw_stream = snd_soc_dai_get_dma_data(dai, substream); 910 911 if (!sdw_stream) 912 return -EINVAL; 913 914 if (!rt700->slave) 915 return -EINVAL; 916 917 /* SoundWire specific configuration */ 918 snd_sdw_params_to_config(substream, params, &stream_config, &port_config); 919 920 /* This code assumes port 1 for playback and port 2 for capture */ 921 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 922 port_config.num = 1; 923 else 924 port_config.num = 2; 925 926 switch (dai->id) { 927 case RT700_AIF1: 928 break; 929 case RT700_AIF2: 930 port_config.num += 2; 931 break; 932 default: 933 dev_err(component->dev, "%s: Invalid DAI id %d\n", __func__, dai->id); 934 return -EINVAL; 935 } 936 937 retval = sdw_stream_add_slave(rt700->slave, &stream_config, 938 &port_config, 1, sdw_stream); 939 if (retval) { 940 dev_err(dai->dev, "%s: Unable to configure port\n", __func__); 941 return retval; 942 } 943 944 if (params_channels(params) <= 16) { 945 /* bit 3:0 Number of Channel */ 946 val |= (params_channels(params) - 1); 947 } else { 948 dev_err(component->dev, "%s: Unsupported channels %d\n", 949 __func__, params_channels(params)); 950 return -EINVAL; 951 } 952 953 switch (params_width(params)) { 954 /* bit 6:4 Bits per Sample */ 955 case 8: 956 break; 957 case 16: 958 val |= (0x1 << 4); 959 break; 960 case 20: 961 val |= (0x2 << 4); 962 break; 963 case 24: 964 val |= (0x3 << 4); 965 break; 966 case 32: 967 val |= (0x4 << 4); 968 break; 969 default: 970 return -EINVAL; 971 } 972 973 /* 48Khz */ 974 regmap_write(rt700->regmap, RT700_DAC_FORMAT_H, val); 975 regmap_write(rt700->regmap, RT700_ADC_FORMAT_H, val); 976 977 return retval; 978} 979 980static int rt700_pcm_hw_free(struct snd_pcm_substream *substream, 981 struct snd_soc_dai *dai) 982{ 983 struct snd_soc_component *component = dai->component; 984 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); 985 struct sdw_stream_runtime *sdw_stream = 986 snd_soc_dai_get_dma_data(dai, substream); 987 988 if (!rt700->slave) 989 return -EINVAL; 990 991 sdw_stream_remove_slave(rt700->slave, sdw_stream); 992 return 0; 993} 994 995#define RT700_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) 996#define RT700_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 997 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) 998 999static const struct snd_soc_dai_ops rt700_ops = { 1000 .hw_params = rt700_pcm_hw_params, 1001 .hw_free = rt700_pcm_hw_free, 1002 .set_stream = rt700_set_sdw_stream, 1003 .shutdown = rt700_shutdown, 1004}; 1005 1006static struct snd_soc_dai_driver rt700_dai[] = { 1007 { 1008 .name = "rt700-aif1", 1009 .id = RT700_AIF1, 1010 .playback = { 1011 .stream_name = "DP1 Playback", 1012 .channels_min = 1, 1013 .channels_max = 2, 1014 .rates = RT700_STEREO_RATES, 1015 .formats = RT700_FORMATS, 1016 }, 1017 .capture = { 1018 .stream_name = "DP2 Capture", 1019 .channels_min = 1, 1020 .channels_max = 2, 1021 .rates = RT700_STEREO_RATES, 1022 .formats = RT700_FORMATS, 1023 }, 1024 .ops = &rt700_ops, 1025 }, 1026 { 1027 .name = "rt700-aif2", 1028 .id = RT700_AIF2, 1029 .playback = { 1030 .stream_name = "DP3 Playback", 1031 .channels_min = 1, 1032 .channels_max = 2, 1033 .rates = RT700_STEREO_RATES, 1034 .formats = RT700_FORMATS, 1035 }, 1036 .capture = { 1037 .stream_name = "DP4 Capture", 1038 .channels_min = 1, 1039 .channels_max = 2, 1040 .rates = RT700_STEREO_RATES, 1041 .formats = RT700_FORMATS, 1042 }, 1043 .ops = &rt700_ops, 1044 }, 1045}; 1046 1047/* Bus clock frequency */ 1048#define RT700_CLK_FREQ_9600000HZ 9600000 1049#define RT700_CLK_FREQ_12000000HZ 12000000 1050#define RT700_CLK_FREQ_6000000HZ 6000000 1051#define RT700_CLK_FREQ_4800000HZ 4800000 1052#define RT700_CLK_FREQ_2400000HZ 2400000 1053#define RT700_CLK_FREQ_12288000HZ 12288000 1054 1055int rt700_clock_config(struct device *dev) 1056{ 1057 struct rt700_priv *rt700 = dev_get_drvdata(dev); 1058 unsigned int clk_freq, value; 1059 1060 clk_freq = (rt700->params.curr_dr_freq >> 1); 1061 1062 switch (clk_freq) { 1063 case RT700_CLK_FREQ_12000000HZ: 1064 value = 0x0; 1065 break; 1066 case RT700_CLK_FREQ_6000000HZ: 1067 value = 0x1; 1068 break; 1069 case RT700_CLK_FREQ_9600000HZ: 1070 value = 0x2; 1071 break; 1072 case RT700_CLK_FREQ_4800000HZ: 1073 value = 0x3; 1074 break; 1075 case RT700_CLK_FREQ_2400000HZ: 1076 value = 0x4; 1077 break; 1078 case RT700_CLK_FREQ_12288000HZ: 1079 value = 0x5; 1080 break; 1081 default: 1082 return -EINVAL; 1083 } 1084 1085 regmap_write(rt700->regmap, 0xe0, value); 1086 regmap_write(rt700->regmap, 0xf0, value); 1087 1088 dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq); 1089 1090 return 0; 1091} 1092 1093int rt700_init(struct device *dev, struct regmap *sdw_regmap, 1094 struct regmap *regmap, struct sdw_slave *slave) 1095 1096{ 1097 struct rt700_priv *rt700; 1098 int ret; 1099 1100 rt700 = devm_kzalloc(dev, sizeof(*rt700), GFP_KERNEL); 1101 if (!rt700) 1102 return -ENOMEM; 1103 1104 dev_set_drvdata(dev, rt700); 1105 rt700->slave = slave; 1106 rt700->sdw_regmap = sdw_regmap; 1107 rt700->regmap = regmap; 1108 1109 regcache_cache_only(rt700->regmap, true); 1110 1111 mutex_init(&rt700->disable_irq_lock); 1112 1113 INIT_DELAYED_WORK(&rt700->jack_detect_work, 1114 rt700_jack_detect_handler); 1115 INIT_DELAYED_WORK(&rt700->jack_btn_check_work, 1116 rt700_btn_check_handler); 1117 1118 /* 1119 * Mark hw_init to false 1120 * HW init will be performed when device reports present 1121 */ 1122 rt700->hw_init = false; 1123 rt700->first_hw_init = false; 1124 1125 ret = devm_snd_soc_register_component(dev, 1126 &soc_codec_dev_rt700, 1127 rt700_dai, 1128 ARRAY_SIZE(rt700_dai)); 1129 if (ret < 0) 1130 return ret; 1131 1132 /* set autosuspend parameters */ 1133 pm_runtime_set_autosuspend_delay(dev, 3000); 1134 pm_runtime_use_autosuspend(dev); 1135 1136 /* make sure the device does not suspend immediately */ 1137 pm_runtime_mark_last_busy(dev); 1138 1139 pm_runtime_enable(dev); 1140 1141 /* important note: the device is NOT tagged as 'active' and will remain 1142 * 'suspended' until the hardware is enumerated/initialized. This is required 1143 * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently 1144 * fail with -EACCESS because of race conditions between card creation and enumeration 1145 */ 1146 dev_dbg(&slave->dev, "%s\n", __func__); 1147 1148 return 0; 1149} 1150 1151int rt700_io_init(struct device *dev, struct sdw_slave *slave) 1152{ 1153 struct rt700_priv *rt700 = dev_get_drvdata(dev); 1154 1155 rt700->disable_irq = false; 1156 1157 if (rt700->hw_init) 1158 return 0; 1159 1160 regcache_cache_only(rt700->regmap, false); 1161 if (rt700->first_hw_init) 1162 regcache_cache_bypass(rt700->regmap, true); 1163 1164 /* 1165 * PM runtime is only enabled when a Slave reports as Attached 1166 */ 1167 if (!rt700->first_hw_init) 1168 /* PM runtime status is marked as 'active' only when a Slave reports as Attached */ 1169 pm_runtime_set_active(&slave->dev); 1170 1171 pm_runtime_get_noresume(&slave->dev); 1172 1173 /* reset */ 1174 regmap_write(rt700->regmap, 0xff01, 0x0000); 1175 regmap_write(rt700->regmap, 0x7520, 0x001a); 1176 regmap_write(rt700->regmap, 0x7420, 0xc003); 1177 1178 /* power on */ 1179 regmap_write(rt700->regmap, RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0); 1180 /* Set Pin Widget */ 1181 regmap_write(rt700->regmap, RT700_SET_PIN_HP, 0x40); 1182 regmap_write(rt700->regmap, RT700_SET_PIN_SPK, 0x40); 1183 regmap_write(rt700->regmap, RT700_SET_EAPD_SPK, RT700_EAPD_HIGH); 1184 regmap_write(rt700->regmap, RT700_SET_PIN_DMIC1, 0x20); 1185 regmap_write(rt700->regmap, RT700_SET_PIN_DMIC2, 0x20); 1186 regmap_write(rt700->regmap, RT700_SET_PIN_MIC2, 0x20); 1187 1188 /* Set Configuration Default */ 1189 regmap_write(rt700->regmap, 0x4f12, 0x91); 1190 regmap_write(rt700->regmap, 0x4e12, 0xd6); 1191 regmap_write(rt700->regmap, 0x4d12, 0x11); 1192 regmap_write(rt700->regmap, 0x4c12, 0x20); 1193 regmap_write(rt700->regmap, 0x4f13, 0x91); 1194 regmap_write(rt700->regmap, 0x4e13, 0xd6); 1195 regmap_write(rt700->regmap, 0x4d13, 0x11); 1196 regmap_write(rt700->regmap, 0x4c13, 0x21); 1197 1198 regmap_write(rt700->regmap, 0x4f19, 0x02); 1199 regmap_write(rt700->regmap, 0x4e19, 0xa1); 1200 regmap_write(rt700->regmap, 0x4d19, 0x90); 1201 regmap_write(rt700->regmap, 0x4c19, 0x80); 1202 1203 /* Enable Line2 */ 1204 regmap_write(rt700->regmap, 0x371b, 0x40); 1205 regmap_write(rt700->regmap, 0x731b, 0xb0); 1206 regmap_write(rt700->regmap, 0x839b, 0x00); 1207 1208 /* Set index */ 1209 rt700_index_write(rt700->regmap, 0x4a, 0x201b); 1210 rt700_index_write(rt700->regmap, 0x45, 0x5089); 1211 rt700_index_write(rt700->regmap, 0x6b, 0x5064); 1212 rt700_index_write(rt700->regmap, 0x48, 0xd249); 1213 1214 /* Finish Initial Settings, set power to D3 */ 1215 regmap_write(rt700->regmap, RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3); 1216 1217 /* 1218 * if set_jack callback occurred early than io_init, 1219 * we set up the jack detection function now 1220 */ 1221 if (rt700->hs_jack) 1222 rt700_jack_init(rt700); 1223 1224 if (rt700->first_hw_init) { 1225 regcache_cache_bypass(rt700->regmap, false); 1226 regcache_mark_dirty(rt700->regmap); 1227 } else 1228 rt700->first_hw_init = true; 1229 1230 /* Mark Slave initialization complete */ 1231 rt700->hw_init = true; 1232 1233 pm_runtime_mark_last_busy(&slave->dev); 1234 pm_runtime_put_autosuspend(&slave->dev); 1235 1236 dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); 1237 1238 return 0; 1239} 1240 1241MODULE_DESCRIPTION("ASoC RT700 driver SDW"); 1242MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); 1243MODULE_LICENSE("GPL v2"); 1244