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 {"Mic Input", NULL, "MICIN"}, 180 181 /* input mux */ 182 {"Capture Source", "Line", "Line Input"}, 183 {"Capture Source", "Mic", "Mic Input"}, 184 {"ADC", NULL, "Capture Source"}, 185 186 }; 187 188 /* AIC23 driver data */ 189 struct aic23 { 190 struct regmap *regmap; 191 int mclk; 192 int requested_adc; 193 int requested_dac; 194 }; 195 196 /* 197 * Common Crystals used 198 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k 199 * 12.0000 Mhz /125 = *96k /136 = 88.235K 200 * 12.2880 Mhz /128 = *96k /192 = 64k 201 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k 202 * 18.4320 Mhz /128 = 144k /192 = *96k 203 */ 204 205 /* 206 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 207 * USB BOSR 0-250/2 = 125, 1-272/2 = 136 208 */ 209 static const int bosr_usb_divisor_table[] = { 210 128, 125, 192, 136 211 }; 212 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7)) 213 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15)) 214 static const unsigned short sr_valid_mask[] = { 215 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/ 216 LOWER_GROUP, /* Usb, bosr - 0*/ 217 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/ 218 UPPER_GROUP, /* Usb, bosr - 1*/ 219 }; 220 /* 221 * Every divisor is a factor of 11*12 222 */ 223 #define SR_MULT (11*12) 224 #define A(x) (SR_MULT/x) 225 static const unsigned char sr_adc_mult_table[] = { 226 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1), 227 A(2), A(2), A(11), A(11), 0, 0, 0, A(1) 228 }; 229 static const unsigned char sr_dac_mult_table[] = { 230 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1), 231 A(2), A(11), A(2), A(11), 0, 0, 0, A(1) 232 }; 233 234 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, 235 int dac, int dac_l, int dac_h, int need_dac) 236 { 237 if ((adc >= adc_l) && (adc <= adc_h) && 238 (dac >= dac_l) && (dac <= dac_h)) { 239 int diff_adc = need_adc - adc; 240 int diff_dac = need_dac - dac; 241 return abs(diff_adc) + abs(diff_dac); 242 } 243 return UINT_MAX; 244 } 245 246 static int find_rate(int mclk, u32 need_adc, u32 need_dac) 247 { 248 int i, j; 249 int best_i = -1; 250 int best_j = -1; 251 int best_div = 0; 252 unsigned best_score = UINT_MAX; 253 int adc_l, adc_h, dac_l, dac_h; 254 255 need_adc *= SR_MULT; 256 need_dac *= SR_MULT; 257 /* 258 * rates given are +/- 1/32 259 */ 260 adc_l = need_adc - (need_adc >> 5); 261 adc_h = need_adc + (need_adc >> 5); 262 dac_l = need_dac - (need_dac >> 5); 263 dac_h = need_dac + (need_dac >> 5); 264 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) { 265 int base = mclk / bosr_usb_divisor_table[i]; 266 int mask = sr_valid_mask[i]; 267 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table); 268 j++, mask >>= 1) { 269 int adc; 270 int dac; 271 int score; 272 if ((mask & 1) == 0) 273 continue; 274 adc = base * sr_adc_mult_table[j]; 275 dac = base * sr_dac_mult_table[j]; 276 score = get_score(adc, adc_l, adc_h, need_adc, 277 dac, dac_l, dac_h, need_dac); 278 if (best_score > score) { 279 best_score = score; 280 best_i = i; 281 best_j = j; 282 best_div = 0; 283 } 284 score = get_score((adc >> 1), adc_l, adc_h, need_adc, 285 (dac >> 1), dac_l, dac_h, need_dac); 286 /* prefer to have a /2 */ 287 if ((score != UINT_MAX) && (best_score >= score)) { 288 best_score = score; 289 best_i = i; 290 best_j = j; 291 best_div = 1; 292 } 293 } 294 } 295 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT); 296 } 297 298 #ifdef DEBUG 299 static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk, 300 u32 *sample_rate_adc, u32 *sample_rate_dac) 301 { 302 int src = snd_soc_read(codec, TLV320AIC23_SRATE); 303 int sr = (src >> 2) & 0x0f; 304 int val = (mclk / bosr_usb_divisor_table[src & 3]); 305 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; 306 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; 307 if (src & TLV320AIC23_CLKIN_HALF) { 308 adc >>= 1; 309 dac >>= 1; 310 } 311 *sample_rate_adc = adc; 312 *sample_rate_dac = dac; 313 } 314 #endif 315 316 static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk, 317 u32 sample_rate_adc, u32 sample_rate_dac) 318 { 319 /* Search for the right sample rate */ 320 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac); 321 if (data < 0) { 322 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n", 323 __func__, sample_rate_adc, sample_rate_dac); 324 return -EINVAL; 325 } 326 snd_soc_write(codec, TLV320AIC23_SRATE, data); 327 #ifdef DEBUG 328 { 329 u32 adc, dac; 330 get_current_sample_rates(codec, mclk, &adc, &dac); 331 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n", 332 adc, dac, data); 333 } 334 #endif 335 return 0; 336 } 337 338 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, 339 struct snd_pcm_hw_params *params, 340 struct snd_soc_dai *dai) 341 { 342 struct snd_soc_codec *codec = dai->codec; 343 u16 iface_reg; 344 int ret; 345 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 346 u32 sample_rate_adc = aic23->requested_adc; 347 u32 sample_rate_dac = aic23->requested_dac; 348 u32 sample_rate = params_rate(params); 349 350 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 351 aic23->requested_dac = sample_rate_dac = sample_rate; 352 if (!sample_rate_adc) 353 sample_rate_adc = sample_rate; 354 } else { 355 aic23->requested_adc = sample_rate_adc = sample_rate; 356 if (!sample_rate_dac) 357 sample_rate_dac = sample_rate; 358 } 359 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc, 360 sample_rate_dac); 361 if (ret < 0) 362 return ret; 363 364 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); 365 366 switch (params_width(params)) { 367 case 16: 368 break; 369 case 20: 370 iface_reg |= (0x01 << 2); 371 break; 372 case 24: 373 iface_reg |= (0x02 << 2); 374 break; 375 case 32: 376 iface_reg |= (0x03 << 2); 377 break; 378 } 379 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 380 381 return 0; 382 } 383 384 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, 385 struct snd_soc_dai *dai) 386 { 387 struct snd_soc_codec *codec = dai->codec; 388 389 /* set active */ 390 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0001); 391 392 return 0; 393 } 394 395 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, 396 struct snd_soc_dai *dai) 397 { 398 struct snd_soc_codec *codec = dai->codec; 399 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 400 401 /* deactivate */ 402 if (!snd_soc_codec_is_active(codec)) { 403 udelay(50); 404 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 405 } 406 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 407 aic23->requested_dac = 0; 408 else 409 aic23->requested_adc = 0; 410 } 411 412 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) 413 { 414 struct snd_soc_codec *codec = dai->codec; 415 u16 reg; 416 417 reg = snd_soc_read(codec, TLV320AIC23_DIGT); 418 if (mute) 419 reg |= TLV320AIC23_DACM_MUTE; 420 421 else 422 reg &= ~TLV320AIC23_DACM_MUTE; 423 424 snd_soc_write(codec, TLV320AIC23_DIGT, reg); 425 426 return 0; 427 } 428 429 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, 430 unsigned int fmt) 431 { 432 struct snd_soc_codec *codec = codec_dai->codec; 433 u16 iface_reg; 434 435 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & (~0x03); 436 437 /* set master/slave audio interface */ 438 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 439 case SND_SOC_DAIFMT_CBM_CFM: 440 iface_reg |= TLV320AIC23_MS_MASTER; 441 break; 442 case SND_SOC_DAIFMT_CBS_CFS: 443 iface_reg &= ~TLV320AIC23_MS_MASTER; 444 break; 445 default: 446 return -EINVAL; 447 448 } 449 450 /* interface format */ 451 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 452 case SND_SOC_DAIFMT_I2S: 453 iface_reg |= TLV320AIC23_FOR_I2S; 454 break; 455 case SND_SOC_DAIFMT_DSP_A: 456 iface_reg |= TLV320AIC23_LRP_ON; 457 case SND_SOC_DAIFMT_DSP_B: 458 iface_reg |= TLV320AIC23_FOR_DSP; 459 break; 460 case SND_SOC_DAIFMT_RIGHT_J: 461 break; 462 case SND_SOC_DAIFMT_LEFT_J: 463 iface_reg |= TLV320AIC23_FOR_LJUST; 464 break; 465 default: 466 return -EINVAL; 467 468 } 469 470 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 471 472 return 0; 473 } 474 475 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, 476 int clk_id, unsigned int freq, int dir) 477 { 478 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai); 479 aic23->mclk = freq; 480 return 0; 481 } 482 483 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, 484 enum snd_soc_bias_level level) 485 { 486 u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f; 487 488 switch (level) { 489 case SND_SOC_BIAS_ON: 490 /* vref/mid, osc on, dac unmute */ 491 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \ 492 TLV320AIC23_DAC_OFF); 493 snd_soc_write(codec, TLV320AIC23_PWR, reg); 494 break; 495 case SND_SOC_BIAS_PREPARE: 496 break; 497 case SND_SOC_BIAS_STANDBY: 498 /* everything off except vref/vmid, */ 499 snd_soc_write(codec, TLV320AIC23_PWR, 500 reg | TLV320AIC23_CLK_OFF); 501 break; 502 case SND_SOC_BIAS_OFF: 503 /* everything off, dac mute, inactive */ 504 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 505 snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff); 506 break; 507 } 508 return 0; 509 } 510 511 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 512 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 513 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 514 515 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = { 516 .prepare = tlv320aic23_pcm_prepare, 517 .hw_params = tlv320aic23_hw_params, 518 .shutdown = tlv320aic23_shutdown, 519 .digital_mute = tlv320aic23_mute, 520 .set_fmt = tlv320aic23_set_dai_fmt, 521 .set_sysclk = tlv320aic23_set_dai_sysclk, 522 }; 523 524 static struct snd_soc_dai_driver tlv320aic23_dai = { 525 .name = "tlv320aic23-hifi", 526 .playback = { 527 .stream_name = "Playback", 528 .channels_min = 2, 529 .channels_max = 2, 530 .rates = AIC23_RATES, 531 .formats = AIC23_FORMATS,}, 532 .capture = { 533 .stream_name = "Capture", 534 .channels_min = 2, 535 .channels_max = 2, 536 .rates = AIC23_RATES, 537 .formats = AIC23_FORMATS,}, 538 .ops = &tlv320aic23_dai_ops, 539 }; 540 541 static int tlv320aic23_resume(struct snd_soc_codec *codec) 542 { 543 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 544 regcache_mark_dirty(aic23->regmap); 545 regcache_sync(aic23->regmap); 546 547 return 0; 548 } 549 550 static int tlv320aic23_codec_probe(struct snd_soc_codec *codec) 551 { 552 /* Reset codec */ 553 snd_soc_write(codec, TLV320AIC23_RESET, 0); 554 555 snd_soc_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); 556 557 /* Unmute input */ 558 snd_soc_update_bits(codec, TLV320AIC23_LINVOL, 559 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 560 561 snd_soc_update_bits(codec, TLV320AIC23_RINVOL, 562 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 563 564 snd_soc_update_bits(codec, TLV320AIC23_ANLG, 565 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED, 566 0); 567 568 /* Default output volume */ 569 snd_soc_write(codec, TLV320AIC23_LCHNVOL, 570 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 571 snd_soc_write(codec, TLV320AIC23_RCHNVOL, 572 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 573 574 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1); 575 576 return 0; 577 } 578 579 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = { 580 .probe = tlv320aic23_codec_probe, 581 .resume = tlv320aic23_resume, 582 .set_bias_level = tlv320aic23_set_bias_level, 583 .suspend_bias_off = true, 584 585 .component_driver = { 586 .controls = tlv320aic23_snd_controls, 587 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls), 588 .dapm_widgets = tlv320aic23_dapm_widgets, 589 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), 590 .dapm_routes = tlv320aic23_intercon, 591 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon), 592 }, 593 }; 594 595 int tlv320aic23_probe(struct device *dev, struct regmap *regmap) 596 { 597 struct aic23 *aic23; 598 599 if (IS_ERR(regmap)) 600 return PTR_ERR(regmap); 601 602 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL); 603 if (aic23 == NULL) 604 return -ENOMEM; 605 606 aic23->regmap = regmap; 607 608 dev_set_drvdata(dev, aic23); 609 610 return snd_soc_register_codec(dev, &soc_codec_dev_tlv320aic23, 611 &tlv320aic23_dai, 1); 612 } 613 EXPORT_SYMBOL(tlv320aic23_probe); 614 615 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); 616 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 617 MODULE_LICENSE("GPL"); 618