1 /* 2 * ALSA SoC TLV320AIC23 codec driver 3 * 4 * Author: Arun KS, <arunks@mistralsolutions.com> 5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., 6 * 7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 * Notes: 14 * The AIC23 is a driver for a low power stereo audio 15 * codec tlv320aic23 16 * 17 * The machine layer should disable unsupported inputs/outputs by 18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. 19 */ 20 21 #include <linux/module.h> 22 #include <linux/moduleparam.h> 23 #include <linux/init.h> 24 #include <linux/delay.h> 25 #include <linux/pm.h> 26 #include <linux/regmap.h> 27 #include <linux/slab.h> 28 #include <sound/core.h> 29 #include <sound/pcm.h> 30 #include <sound/pcm_params.h> 31 #include <sound/soc.h> 32 #include <sound/tlv.h> 33 #include <sound/initval.h> 34 35 #include "tlv320aic23.h" 36 37 /* 38 * AIC23 register cache 39 */ 40 static const struct reg_default tlv320aic23_reg[] = { 41 { 0, 0x0097 }, 42 { 1, 0x0097 }, 43 { 2, 0x00F9 }, 44 { 3, 0x00F9 }, 45 { 4, 0x001A }, 46 { 5, 0x0004 }, 47 { 6, 0x0007 }, 48 { 7, 0x0001 }, 49 { 8, 0x0020 }, 50 { 9, 0x0000 }, 51 }; 52 53 const struct regmap_config tlv320aic23_regmap = { 54 .reg_bits = 7, 55 .val_bits = 9, 56 57 .max_register = TLV320AIC23_RESET, 58 .reg_defaults = tlv320aic23_reg, 59 .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg), 60 .cache_type = REGCACHE_RBTREE, 61 }; 62 EXPORT_SYMBOL(tlv320aic23_regmap); 63 64 static const char *rec_src_text[] = { "Line", "Mic" }; 65 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 66 67 static SOC_ENUM_SINGLE_DECL(rec_src_enum, 68 TLV320AIC23_ANLG, 2, rec_src_text); 69 70 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = 71 SOC_DAPM_ENUM("Input Select", rec_src_enum); 72 73 static SOC_ENUM_SINGLE_DECL(tlv320aic23_rec_src, 74 TLV320AIC23_ANLG, 2, rec_src_text); 75 static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph, 76 TLV320AIC23_DIGT, 1, deemph_text); 77 78 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); 79 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); 80 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); 81 82 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, 83 struct snd_ctl_elem_value *ucontrol) 84 { 85 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 86 u16 val, reg; 87 88 val = (ucontrol->value.integer.value[0] & 0x07); 89 90 /* linear conversion to userspace 91 * 000 = -6db 92 * 001 = -9db 93 * 010 = -12db 94 * 011 = -18db (Min) 95 * 100 = 0db (Max) 96 */ 97 val = (val >= 4) ? 4 : (3 - val); 98 99 reg = snd_soc_read(codec, TLV320AIC23_ANLG) & (~0x1C0); 100 snd_soc_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); 101 102 return 0; 103 } 104 105 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, 106 struct snd_ctl_elem_value *ucontrol) 107 { 108 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 109 u16 val; 110 111 val = snd_soc_read(codec, TLV320AIC23_ANLG) & (0x1C0); 112 val = val >> 6; 113 val = (val >= 4) ? 4 : (3 - val); 114 ucontrol->value.integer.value[0] = val; 115 return 0; 116 117 } 118 119 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { 120 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, 121 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv), 122 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1), 123 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL, 124 TLV320AIC23_RINVOL, 7, 1, 0), 125 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL, 126 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), 127 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), 128 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), 129 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0, 130 snd_soc_tlv320aic23_get_volsw, 131 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv), 132 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), 133 }; 134 135 /* PGA Mixer controls for Line and Mic switch */ 136 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = { 137 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0), 138 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0), 139 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0), 140 }; 141 142 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { 143 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1), 144 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1), 145 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, 146 &tlv320aic23_rec_src_mux_controls), 147 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1, 148 &tlv320aic23_output_mixer_controls[0], 149 ARRAY_SIZE(tlv320aic23_output_mixer_controls)), 150 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0), 151 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0), 152 153 SND_SOC_DAPM_OUTPUT("LHPOUT"), 154 SND_SOC_DAPM_OUTPUT("RHPOUT"), 155 SND_SOC_DAPM_OUTPUT("LOUT"), 156 SND_SOC_DAPM_OUTPUT("ROUT"), 157 158 SND_SOC_DAPM_INPUT("LLINEIN"), 159 SND_SOC_DAPM_INPUT("RLINEIN"), 160 161 SND_SOC_DAPM_INPUT("MICIN"), 162 }; 163 164 static const struct snd_soc_dapm_route tlv320aic23_intercon[] = { 165 /* Output Mixer */ 166 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 167 {"Output Mixer", "Playback Switch", "DAC"}, 168 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"}, 169 170 /* Outputs */ 171 {"RHPOUT", NULL, "Output Mixer"}, 172 {"LHPOUT", NULL, "Output Mixer"}, 173 {"LOUT", NULL, "Output Mixer"}, 174 {"ROUT", NULL, "Output Mixer"}, 175 176 /* Inputs */ 177 {"Line Input", "NULL", "LLINEIN"}, 178 {"Line Input", "NULL", "RLINEIN"}, 179 180 {"Mic Input", "NULL", "MICIN"}, 181 182 /* input mux */ 183 {"Capture Source", "Line", "Line Input"}, 184 {"Capture Source", "Mic", "Mic Input"}, 185 {"ADC", NULL, "Capture Source"}, 186 187 }; 188 189 /* AIC23 driver data */ 190 struct aic23 { 191 struct regmap *regmap; 192 int mclk; 193 int requested_adc; 194 int requested_dac; 195 }; 196 197 /* 198 * Common Crystals used 199 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k 200 * 12.0000 Mhz /125 = *96k /136 = 88.235K 201 * 12.2880 Mhz /128 = *96k /192 = 64k 202 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k 203 * 18.4320 Mhz /128 = 144k /192 = *96k 204 */ 205 206 /* 207 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 208 * USB BOSR 0-250/2 = 125, 1-272/2 = 136 209 */ 210 static const int bosr_usb_divisor_table[] = { 211 128, 125, 192, 136 212 }; 213 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7)) 214 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15)) 215 static const unsigned short sr_valid_mask[] = { 216 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/ 217 LOWER_GROUP, /* Usb, bosr - 0*/ 218 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/ 219 UPPER_GROUP, /* Usb, bosr - 1*/ 220 }; 221 /* 222 * Every divisor is a factor of 11*12 223 */ 224 #define SR_MULT (11*12) 225 #define A(x) (SR_MULT/x) 226 static const unsigned char sr_adc_mult_table[] = { 227 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1), 228 A(2), A(2), A(11), A(11), 0, 0, 0, A(1) 229 }; 230 static const unsigned char sr_dac_mult_table[] = { 231 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1), 232 A(2), A(11), A(2), A(11), 0, 0, 0, A(1) 233 }; 234 235 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, 236 int dac, int dac_l, int dac_h, int need_dac) 237 { 238 if ((adc >= adc_l) && (adc <= adc_h) && 239 (dac >= dac_l) && (dac <= dac_h)) { 240 int diff_adc = need_adc - adc; 241 int diff_dac = need_dac - dac; 242 return abs(diff_adc) + abs(diff_dac); 243 } 244 return UINT_MAX; 245 } 246 247 static int find_rate(int mclk, u32 need_adc, u32 need_dac) 248 { 249 int i, j; 250 int best_i = -1; 251 int best_j = -1; 252 int best_div = 0; 253 unsigned best_score = UINT_MAX; 254 int adc_l, adc_h, dac_l, dac_h; 255 256 need_adc *= SR_MULT; 257 need_dac *= SR_MULT; 258 /* 259 * rates given are +/- 1/32 260 */ 261 adc_l = need_adc - (need_adc >> 5); 262 adc_h = need_adc + (need_adc >> 5); 263 dac_l = need_dac - (need_dac >> 5); 264 dac_h = need_dac + (need_dac >> 5); 265 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) { 266 int base = mclk / bosr_usb_divisor_table[i]; 267 int mask = sr_valid_mask[i]; 268 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table); 269 j++, mask >>= 1) { 270 int adc; 271 int dac; 272 int score; 273 if ((mask & 1) == 0) 274 continue; 275 adc = base * sr_adc_mult_table[j]; 276 dac = base * sr_dac_mult_table[j]; 277 score = get_score(adc, adc_l, adc_h, need_adc, 278 dac, dac_l, dac_h, need_dac); 279 if (best_score > score) { 280 best_score = score; 281 best_i = i; 282 best_j = j; 283 best_div = 0; 284 } 285 score = get_score((adc >> 1), adc_l, adc_h, need_adc, 286 (dac >> 1), dac_l, dac_h, need_dac); 287 /* prefer to have a /2 */ 288 if ((score != UINT_MAX) && (best_score >= score)) { 289 best_score = score; 290 best_i = i; 291 best_j = j; 292 best_div = 1; 293 } 294 } 295 } 296 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT); 297 } 298 299 #ifdef DEBUG 300 static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk, 301 u32 *sample_rate_adc, u32 *sample_rate_dac) 302 { 303 int src = snd_soc_read(codec, TLV320AIC23_SRATE); 304 int sr = (src >> 2) & 0x0f; 305 int val = (mclk / bosr_usb_divisor_table[src & 3]); 306 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; 307 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; 308 if (src & TLV320AIC23_CLKIN_HALF) { 309 adc >>= 1; 310 dac >>= 1; 311 } 312 *sample_rate_adc = adc; 313 *sample_rate_dac = dac; 314 } 315 #endif 316 317 static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk, 318 u32 sample_rate_adc, u32 sample_rate_dac) 319 { 320 /* Search for the right sample rate */ 321 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac); 322 if (data < 0) { 323 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n", 324 __func__, sample_rate_adc, sample_rate_dac); 325 return -EINVAL; 326 } 327 snd_soc_write(codec, TLV320AIC23_SRATE, data); 328 #ifdef DEBUG 329 { 330 u32 adc, dac; 331 get_current_sample_rates(codec, mclk, &adc, &dac); 332 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n", 333 adc, dac, data); 334 } 335 #endif 336 return 0; 337 } 338 339 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, 340 struct snd_pcm_hw_params *params, 341 struct snd_soc_dai *dai) 342 { 343 struct snd_soc_codec *codec = dai->codec; 344 u16 iface_reg; 345 int ret; 346 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 347 u32 sample_rate_adc = aic23->requested_adc; 348 u32 sample_rate_dac = aic23->requested_dac; 349 u32 sample_rate = params_rate(params); 350 351 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 352 aic23->requested_dac = sample_rate_dac = sample_rate; 353 if (!sample_rate_adc) 354 sample_rate_adc = sample_rate; 355 } else { 356 aic23->requested_adc = sample_rate_adc = sample_rate; 357 if (!sample_rate_dac) 358 sample_rate_dac = sample_rate; 359 } 360 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc, 361 sample_rate_dac); 362 if (ret < 0) 363 return ret; 364 365 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); 366 367 switch (params_format(params)) { 368 case SNDRV_PCM_FORMAT_S16_LE: 369 break; 370 case SNDRV_PCM_FORMAT_S20_3LE: 371 iface_reg |= (0x01 << 2); 372 break; 373 case SNDRV_PCM_FORMAT_S24_LE: 374 iface_reg |= (0x02 << 2); 375 break; 376 case SNDRV_PCM_FORMAT_S32_LE: 377 iface_reg |= (0x03 << 2); 378 break; 379 } 380 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 381 382 return 0; 383 } 384 385 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, 386 struct snd_soc_dai *dai) 387 { 388 struct snd_soc_codec *codec = dai->codec; 389 390 /* set active */ 391 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0001); 392 393 return 0; 394 } 395 396 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, 397 struct snd_soc_dai *dai) 398 { 399 struct snd_soc_codec *codec = dai->codec; 400 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 401 402 /* deactivate */ 403 if (!snd_soc_codec_is_active(codec)) { 404 udelay(50); 405 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 406 } 407 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 408 aic23->requested_dac = 0; 409 else 410 aic23->requested_adc = 0; 411 } 412 413 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) 414 { 415 struct snd_soc_codec *codec = dai->codec; 416 u16 reg; 417 418 reg = snd_soc_read(codec, TLV320AIC23_DIGT); 419 if (mute) 420 reg |= TLV320AIC23_DACM_MUTE; 421 422 else 423 reg &= ~TLV320AIC23_DACM_MUTE; 424 425 snd_soc_write(codec, TLV320AIC23_DIGT, reg); 426 427 return 0; 428 } 429 430 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, 431 unsigned int fmt) 432 { 433 struct snd_soc_codec *codec = codec_dai->codec; 434 u16 iface_reg; 435 436 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & (~0x03); 437 438 /* set master/slave audio interface */ 439 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 440 case SND_SOC_DAIFMT_CBM_CFM: 441 iface_reg |= TLV320AIC23_MS_MASTER; 442 break; 443 case SND_SOC_DAIFMT_CBS_CFS: 444 iface_reg &= ~TLV320AIC23_MS_MASTER; 445 break; 446 default: 447 return -EINVAL; 448 449 } 450 451 /* interface format */ 452 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 453 case SND_SOC_DAIFMT_I2S: 454 iface_reg |= TLV320AIC23_FOR_I2S; 455 break; 456 case SND_SOC_DAIFMT_DSP_A: 457 iface_reg |= TLV320AIC23_LRP_ON; 458 case SND_SOC_DAIFMT_DSP_B: 459 iface_reg |= TLV320AIC23_FOR_DSP; 460 break; 461 case SND_SOC_DAIFMT_RIGHT_J: 462 break; 463 case SND_SOC_DAIFMT_LEFT_J: 464 iface_reg |= TLV320AIC23_FOR_LJUST; 465 break; 466 default: 467 return -EINVAL; 468 469 } 470 471 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 472 473 return 0; 474 } 475 476 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, 477 int clk_id, unsigned int freq, int dir) 478 { 479 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai); 480 aic23->mclk = freq; 481 return 0; 482 } 483 484 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, 485 enum snd_soc_bias_level level) 486 { 487 u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f; 488 489 switch (level) { 490 case SND_SOC_BIAS_ON: 491 /* vref/mid, osc on, dac unmute */ 492 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \ 493 TLV320AIC23_DAC_OFF); 494 snd_soc_write(codec, TLV320AIC23_PWR, reg); 495 break; 496 case SND_SOC_BIAS_PREPARE: 497 break; 498 case SND_SOC_BIAS_STANDBY: 499 /* everything off except vref/vmid, */ 500 snd_soc_write(codec, TLV320AIC23_PWR, 501 reg | TLV320AIC23_CLK_OFF); 502 break; 503 case SND_SOC_BIAS_OFF: 504 /* everything off, dac mute, inactive */ 505 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 506 snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff); 507 break; 508 } 509 codec->dapm.bias_level = level; 510 return 0; 511 } 512 513 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 514 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 515 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 516 517 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = { 518 .prepare = tlv320aic23_pcm_prepare, 519 .hw_params = tlv320aic23_hw_params, 520 .shutdown = tlv320aic23_shutdown, 521 .digital_mute = tlv320aic23_mute, 522 .set_fmt = tlv320aic23_set_dai_fmt, 523 .set_sysclk = tlv320aic23_set_dai_sysclk, 524 }; 525 526 static struct snd_soc_dai_driver tlv320aic23_dai = { 527 .name = "tlv320aic23-hifi", 528 .playback = { 529 .stream_name = "Playback", 530 .channels_min = 2, 531 .channels_max = 2, 532 .rates = AIC23_RATES, 533 .formats = AIC23_FORMATS,}, 534 .capture = { 535 .stream_name = "Capture", 536 .channels_min = 2, 537 .channels_max = 2, 538 .rates = AIC23_RATES, 539 .formats = AIC23_FORMATS,}, 540 .ops = &tlv320aic23_dai_ops, 541 }; 542 543 static int tlv320aic23_suspend(struct snd_soc_codec *codec) 544 { 545 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 546 547 return 0; 548 } 549 550 static int tlv320aic23_resume(struct snd_soc_codec *codec) 551 { 552 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 553 regcache_mark_dirty(aic23->regmap); 554 regcache_sync(aic23->regmap); 555 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 556 557 return 0; 558 } 559 560 static int tlv320aic23_codec_probe(struct snd_soc_codec *codec) 561 { 562 /* Reset codec */ 563 snd_soc_write(codec, TLV320AIC23_RESET, 0); 564 565 /* power on device */ 566 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 567 568 snd_soc_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); 569 570 /* Unmute input */ 571 snd_soc_update_bits(codec, TLV320AIC23_LINVOL, 572 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 573 574 snd_soc_update_bits(codec, TLV320AIC23_RINVOL, 575 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 576 577 snd_soc_update_bits(codec, TLV320AIC23_ANLG, 578 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED, 579 0); 580 581 /* Default output volume */ 582 snd_soc_write(codec, TLV320AIC23_LCHNVOL, 583 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 584 snd_soc_write(codec, TLV320AIC23_RCHNVOL, 585 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 586 587 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1); 588 589 return 0; 590 } 591 592 static int tlv320aic23_remove(struct snd_soc_codec *codec) 593 { 594 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 595 return 0; 596 } 597 598 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = { 599 .probe = tlv320aic23_codec_probe, 600 .remove = tlv320aic23_remove, 601 .suspend = tlv320aic23_suspend, 602 .resume = tlv320aic23_resume, 603 .set_bias_level = tlv320aic23_set_bias_level, 604 .controls = tlv320aic23_snd_controls, 605 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls), 606 .dapm_widgets = tlv320aic23_dapm_widgets, 607 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), 608 .dapm_routes = tlv320aic23_intercon, 609 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon), 610 }; 611 612 int tlv320aic23_probe(struct device *dev, struct regmap *regmap) 613 { 614 struct aic23 *aic23; 615 616 if (IS_ERR(regmap)) 617 return PTR_ERR(regmap); 618 619 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL); 620 if (aic23 == NULL) 621 return -ENOMEM; 622 623 aic23->regmap = regmap; 624 625 dev_set_drvdata(dev, aic23); 626 627 return snd_soc_register_codec(dev, &soc_codec_dev_tlv320aic23, 628 &tlv320aic23_dai, 1); 629 } 630 EXPORT_SYMBOL(tlv320aic23_probe); 631 632 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); 633 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 634 MODULE_LICENSE("GPL"); 635