sound/soc/codecs/twl6040.c

   1 /*
   2  * ALSA SoC TWL6040 codec driver
   3  *
   4  * Author:       Misael Lopez Cruz <x0052729@ti.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/pm.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/slab.h>
  29 #include <linux/mfd/twl6040.h>
  30
  31 #include <sound/core.h>
  32 #include <sound/pcm.h>
  33 #include <sound/pcm_params.h>
  34 #include <sound/soc.h>
  35 #include <sound/soc-dapm.h>
  36 #include <sound/initval.h>
  37 #include <sound/tlv.h>
  38
  39 #include "twl6040.h"
  40
  41 enum twl6040_dai_id {
  42         TWL6040_DAI_LEGACY = 0,
  43         TWL6040_DAI_UL,
  44         TWL6040_DAI_DL1,
  45         TWL6040_DAI_DL2,
  46         TWL6040_DAI_VIB,
  47 };
  48
  49 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
  50 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
  51
  52 #define TWL6040_OUTHS_0dB 0x00
  53 #define TWL6040_OUTHS_M30dB 0x0F
  54 #define TWL6040_OUTHF_0dB 0x03
  55 #define TWL6040_OUTHF_M52dB 0x1D
  56
  57 #define TWL6040_CACHEREGNUM     (TWL6040_REG_STATUS + 1)
  58
  59 struct twl6040_jack_data {
  60         struct snd_soc_jack *jack;
  61         struct delayed_work work;
  62         int report;
  63 };
  64
  65 /* codec private data */
  66 struct twl6040_data {
  67         int plug_irq;
  68         int codec_powered;
  69         int pll;
  70         int pll_power_mode;
  71         int hs_power_mode;
  72         int hs_power_mode_locked;
  73         bool dl1_unmuted;
  74         bool dl2_unmuted;
  75         u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
  76         unsigned int clk_in;
  77         unsigned int sysclk;
  78         struct twl6040_jack_data hs_jack;
  79         struct snd_soc_codec *codec;
  80         struct mutex mutex;
  81 };
  82
  83 /* set of rates for each pll: low-power and high-performance */
  84 static const unsigned int lp_rates[] = {
  85         8000,
  86         11250,
  87         16000,
  88         22500,
  89         32000,
  90         44100,
  91         48000,
  92         88200,
  93         96000,
  94 };
  95
  96 static const unsigned int hp_rates[] = {
  97         8000,
  98         16000,
  99         32000,
 100         48000,
 101         96000,
 102 };
 103
 104 static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 105         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 106         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 107 };
 108
 109 static unsigned int twl6040_read(struct snd_soc_codec *codec, unsigned int reg)
 110 {
 111         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 112         struct twl6040 *twl6040 = codec->control_data;
 113         u8 value;
 114
 115         if (reg >= TWL6040_CACHEREGNUM)
 116                 return -EIO;
 117
 118         switch (reg) {
 119         case TWL6040_REG_HSLCTL:
 120         case TWL6040_REG_HSRCTL:
 121         case TWL6040_REG_EARCTL:
 122         case TWL6040_REG_HFLCTL:
 123         case TWL6040_REG_HFRCTL:
 124                 value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
 125                 break;
 126         default:
 127                 value = twl6040_reg_read(twl6040, reg);
 128                 break;
 129         }
 130
 131         return value;
 132 }
 133
 134 static bool twl6040_can_write_to_chip(struct snd_soc_codec *codec,
 135                                   unsigned int reg)
 136 {
 137         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 138
 139         switch (reg) {
 140         case TWL6040_REG_HSLCTL:
 141         case TWL6040_REG_HSRCTL:
 142         case TWL6040_REG_EARCTL:
 143                 /* DL1 path */
 144                 return priv->dl1_unmuted;
 145         case TWL6040_REG_HFLCTL:
 146         case TWL6040_REG_HFRCTL:
 147                 return priv->dl2_unmuted;
 148         default:
 149                 return 1;
 150         }
 151 }
 152
 153 static inline void twl6040_update_dl12_cache(struct snd_soc_codec *codec,
 154                                              u8 reg, u8 value)
 155 {
 156         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 157
 158         switch (reg) {
 159         case TWL6040_REG_HSLCTL:
 160         case TWL6040_REG_HSRCTL:
 161         case TWL6040_REG_EARCTL:
 162         case TWL6040_REG_HFLCTL:
 163         case TWL6040_REG_HFRCTL:
 164                 priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
 165                 break;
 166         default:
 167                 break;
 168         }
 169 }
 170
 171 static int twl6040_write(struct snd_soc_codec *codec,
 172                         unsigned int reg, unsigned int value)
 173 {
 174         struct twl6040 *twl6040 = codec->control_data;
 175
 176         if (reg >= TWL6040_CACHEREGNUM)
 177                 return -EIO;
 178
 179         twl6040_update_dl12_cache(codec, reg, value);
 180         if (twl6040_can_write_to_chip(codec, reg))
 181                 return twl6040_reg_write(twl6040, reg, value);
 182         else
 183                 return 0;
 184 }
 185
 186 static void twl6040_init_chip(struct snd_soc_codec *codec)
 187 {
 188         twl6040_read(codec, TWL6040_REG_TRIM1);
 189         twl6040_read(codec, TWL6040_REG_TRIM2);
 190         twl6040_read(codec, TWL6040_REG_TRIM3);
 191         twl6040_read(codec, TWL6040_REG_HSOTRIM);
 192         twl6040_read(codec, TWL6040_REG_HFOTRIM);
 193
 194         /* Change chip defaults */
 195         /* No imput selected for microphone amplifiers */
 196         twl6040_write(codec, TWL6040_REG_MICLCTL, 0x18);
 197         twl6040_write(codec, TWL6040_REG_MICRCTL, 0x18);
 198
 199         /*
 200          * We need to lower the default gain values, so the ramp code
 201          * can work correctly for the first playback.
 202          * This reduces the pop noise heard at the first playback.
 203          */
 204         twl6040_write(codec, TWL6040_REG_HSGAIN, 0xff);
 205         twl6040_write(codec, TWL6040_REG_EARCTL, 0x1e);
 206         twl6040_write(codec, TWL6040_REG_HFLGAIN, 0x1d);
 207         twl6040_write(codec, TWL6040_REG_HFRGAIN, 0x1d);
 208         twl6040_write(codec, TWL6040_REG_LINEGAIN, 0);
 209 }
 210
 211 /* set headset dac and driver power mode */
 212 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
 213 {
 214         int hslctl, hsrctl;
 215         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
 216
 217         hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
 218         hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
 219
 220         if (high_perf) {
 221                 hslctl &= ~mask;
 222                 hsrctl &= ~mask;
 223         } else {
 224                 hslctl |= mask;
 225                 hsrctl |= mask;
 226         }
 227
 228         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 229         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 230
 231         return 0;
 232 }
 233
 234 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
 235                         struct snd_kcontrol *kcontrol, int event)
 236 {
 237         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 238         u8 hslctl, hsrctl;
 239
 240         /*
 241          * Workaround for Headset DC offset caused pop noise:
 242          * Both HS DAC need to be turned on (before the HS driver) and off at
 243          * the same time.
 244          */
 245         hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
 246         hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
 247         if (SND_SOC_DAPM_EVENT_ON(event)) {
 248                 hslctl |= TWL6040_HSDACENA;
 249                 hsrctl |= TWL6040_HSDACENA;
 250         } else {
 251                 hslctl &= ~TWL6040_HSDACENA;
 252                 hsrctl &= ~TWL6040_HSDACENA;
 253         }
 254         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 255         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 256
 257         msleep(1);
 258         return 0;
 259 }
 260
 261 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
 262                         struct snd_kcontrol *kcontrol, int event)
 263 {
 264         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 265         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 266         int ret = 0;
 267
 268         if (SND_SOC_DAPM_EVENT_ON(event)) {
 269                 /* Earphone doesn't support low power mode */
 270                 priv->hs_power_mode_locked = 1;
 271                 ret = headset_power_mode(codec, 1);
 272         } else {
 273                 priv->hs_power_mode_locked = 0;
 274                 ret = headset_power_mode(codec, priv->hs_power_mode);
 275         }
 276
 277         msleep(1);
 278
 279         return ret;
 280 }
 281
 282 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
 283                                    struct snd_soc_jack *jack, int report)
 284 {
 285         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 286         int status;
 287
 288         mutex_lock(&priv->mutex);
 289
 290         /* Sync status */
 291         status = twl6040_read(codec, TWL6040_REG_STATUS);
 292         if (status & TWL6040_PLUGCOMP)
 293                 snd_soc_jack_report(jack, report, report);
 294         else
 295                 snd_soc_jack_report(jack, 0, report);
 296
 297         mutex_unlock(&priv->mutex);
 298 }
 299
 300 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
 301                                 struct snd_soc_jack *jack, int report)
 302 {
 303         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 304         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 305
 306         hs_jack->jack = jack;
 307         hs_jack->report = report;
 308
 309         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 310 }
 311 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
 312
 313 static void twl6040_accessory_work(struct work_struct *work)
 314 {
 315         struct twl6040_data *priv = container_of(work,
 316                                         struct twl6040_data, hs_jack.work.work);
 317         struct snd_soc_codec *codec = priv->codec;
 318         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 319
 320         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 321 }
 322
 323 /* audio interrupt handler */
 324 static irqreturn_t twl6040_audio_handler(int irq, void *data)
 325 {
 326         struct snd_soc_codec *codec = data;
 327         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 328
 329         queue_delayed_work(system_power_efficient_wq,
 330                            &priv->hs_jack.work, msecs_to_jiffies(200));
 331
 332         return IRQ_HANDLED;
 333 }
 334
 335 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
 336         struct snd_ctl_elem_value *ucontrol)
 337 {
 338         struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
 339         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 340         unsigned int val;
 341
 342         /* Do not allow changes while Input/FF efect is running */
 343         val = twl6040_read(codec, e->reg);
 344         if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
 345                 return -EBUSY;
 346
 347         return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 348 }
 349
 350 /*
 351  * MICATT volume control:
 352  * from -6 to 0 dB in 6 dB steps
 353  */
 354 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 355
 356 /*
 357  * MICGAIN volume control:
 358  * from 6 to 30 dB in 6 dB steps
 359  */
 360 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
 361
 362 /*
 363  * AFMGAIN volume control:
 364  * from -18 to 24 dB in 6 dB steps
 365  */
 366 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
 367
 368 /*
 369  * HSGAIN volume control:
 370  * from -30 to 0 dB in 2 dB steps
 371  */
 372 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
 373
 374 /*
 375  * HFGAIN volume control:
 376  * from -52 to 6 dB in 2 dB steps
 377  */
 378 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
 379
 380 /*
 381  * EPGAIN volume control:
 382  * from -24 to 6 dB in 2 dB steps
 383  */
 384 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
 385
 386 /* Left analog microphone selection */
 387 static const char *twl6040_amicl_texts[] =
 388         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
 389
 390 /* Right analog microphone selection */
 391 static const char *twl6040_amicr_texts[] =
 392         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
 393
 394 static const struct soc_enum twl6040_enum[] = {
 395         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
 396                         ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
 397         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
 398                         ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
 399 };
 400
 401 static const char *twl6040_hs_texts[] = {
 402         "Off", "HS DAC", "Line-In amp"
 403 };
 404
 405 static const struct soc_enum twl6040_hs_enum[] = {
 406         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 407                         twl6040_hs_texts),
 408         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 409                         twl6040_hs_texts),
 410 };
 411
 412 static const char *twl6040_hf_texts[] = {
 413         "Off", "HF DAC", "Line-In amp"
 414 };
 415
 416 static const struct soc_enum twl6040_hf_enum[] = {
 417         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 418                         twl6040_hf_texts),
 419         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 420                         twl6040_hf_texts),
 421 };
 422
 423 static const char *twl6040_vibrapath_texts[] = {
 424         "Input FF", "Audio PDM"
 425 };
 426
 427 static const struct soc_enum twl6040_vibra_enum[] = {
 428         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
 429                         ARRAY_SIZE(twl6040_vibrapath_texts),
 430                         twl6040_vibrapath_texts),
 431         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
 432                         ARRAY_SIZE(twl6040_vibrapath_texts),
 433                         twl6040_vibrapath_texts),
 434 };
 435
 436 static const struct snd_kcontrol_new amicl_control =
 437         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
 438
 439 static const struct snd_kcontrol_new amicr_control =
 440         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
 441
 442 /* Headset DAC playback switches */
 443 static const struct snd_kcontrol_new hsl_mux_controls =
 444         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
 445
 446 static const struct snd_kcontrol_new hsr_mux_controls =
 447         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
 448
 449 /* Handsfree DAC playback switches */
 450 static const struct snd_kcontrol_new hfl_mux_controls =
 451         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
 452
 453 static const struct snd_kcontrol_new hfr_mux_controls =
 454         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 455
 456 static const struct snd_kcontrol_new ep_path_enable_control =
 457         SOC_DAPM_SINGLE_VIRT("Switch", 1);
 458
 459 static const struct snd_kcontrol_new auxl_switch_control =
 460         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
 461
 462 static const struct snd_kcontrol_new auxr_switch_control =
 463         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
 464
 465 /* Vibra playback switches */
 466 static const struct snd_kcontrol_new vibral_mux_controls =
 467         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
 468                 snd_soc_dapm_get_enum_double,
 469                 twl6040_soc_dapm_put_vibra_enum);
 470
 471 static const struct snd_kcontrol_new vibrar_mux_controls =
 472         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
 473                 snd_soc_dapm_get_enum_double,
 474                 twl6040_soc_dapm_put_vibra_enum);
 475
 476 /* Headset power mode */
 477 static const char *twl6040_power_mode_texts[] = {
 478         "Low-Power", "High-Performance",
 479 };
 480
 481 static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
 482                                 twl6040_power_mode_texts);
 483
 484 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
 485         struct snd_ctl_elem_value *ucontrol)
 486 {
 487         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 488         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 489
 490         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
 491
 492         return 0;
 493 }
 494
 495 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
 496         struct snd_ctl_elem_value *ucontrol)
 497 {
 498         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 499         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 500         int high_perf = ucontrol->value.enumerated.item[0];
 501         int ret = 0;
 502
 503         if (!priv->hs_power_mode_locked)
 504                 ret = headset_power_mode(codec, high_perf);
 505
 506         if (!ret)
 507                 priv->hs_power_mode = high_perf;
 508
 509         return ret;
 510 }
 511
 512 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
 513         struct snd_ctl_elem_value *ucontrol)
 514 {
 515         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 516         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 517
 518         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
 519
 520         return 0;
 521 }
 522
 523 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
 524         struct snd_ctl_elem_value *ucontrol)
 525 {
 526         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 527         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 528
 529         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
 530
 531         return 0;
 532 }
 533
 534 int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
 535 {
 536         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 537
 538         if (snd_soc_dapm_get_pin_status(dapm, "EP"))
 539                 return -1; /* -1dB */
 540
 541         if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
 542                 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
 543
 544                 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL);
 545                 if (val & TWL6040_HSDACMODE)
 546                         /* HSDACL in LP mode */
 547                         return -8; /* -8dB */
 548                 else
 549                         /* HSDACL in HP mode */
 550                         return -1; /* -1dB */
 551         }
 552         return 0; /* 0dB */
 553 }
 554 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
 555
 556 int twl6040_get_clk_id(struct snd_soc_codec *codec)
 557 {
 558         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 559
 560         return priv->pll_power_mode;
 561 }
 562 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
 563
 564 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
 565 {
 566         if (unlikely(trim >= TWL6040_TRIM_INVAL))
 567                 return -EINVAL;
 568
 569         return twl6040_read(codec, TWL6040_REG_TRIM1 + trim);
 570 }
 571 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
 572
 573 int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
 574 {
 575         struct twl6040 *twl6040 = codec->control_data;
 576
 577         if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
 578                 /* For ES under ES_1.3 HS step is 2 mV */
 579                 return 2;
 580         else
 581                 /* For ES_1.3 HS step is 1 mV */
 582                 return 1;
 583 }
 584 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
 585
 586 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
 587         /* Capture gains */
 588         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
 589                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
 590         SOC_DOUBLE_TLV("Capture Volume",
 591                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
 592
 593         /* AFM gains */
 594         SOC_DOUBLE_TLV("Aux FM Volume",
 595                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
 596
 597         /* Playback gains */
 598         SOC_DOUBLE_TLV("Headset Playback Volume",
 599                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
 600         SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
 601                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
 602         SOC_SINGLE_TLV("Earphone Playback Volume",
 603                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
 604
 605         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
 606                 twl6040_headset_power_get_enum,
 607                 twl6040_headset_power_put_enum),
 608
 609         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
 610                 twl6040_pll_get_enum, twl6040_pll_put_enum),
 611 };
 612
 613 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
 614         /* Inputs */
 615         SND_SOC_DAPM_INPUT("MAINMIC"),
 616         SND_SOC_DAPM_INPUT("HSMIC"),
 617         SND_SOC_DAPM_INPUT("SUBMIC"),
 618         SND_SOC_DAPM_INPUT("AFML"),
 619         SND_SOC_DAPM_INPUT("AFMR"),
 620
 621         /* Outputs */
 622         SND_SOC_DAPM_OUTPUT("HSOL"),
 623         SND_SOC_DAPM_OUTPUT("HSOR"),
 624         SND_SOC_DAPM_OUTPUT("HFL"),
 625         SND_SOC_DAPM_OUTPUT("HFR"),
 626         SND_SOC_DAPM_OUTPUT("EP"),
 627         SND_SOC_DAPM_OUTPUT("AUXL"),
 628         SND_SOC_DAPM_OUTPUT("AUXR"),
 629         SND_SOC_DAPM_OUTPUT("VIBRAL"),
 630         SND_SOC_DAPM_OUTPUT("VIBRAR"),
 631
 632         /* Analog input muxes for the capture amplifiers */
 633         SND_SOC_DAPM_MUX("Analog Left Capture Route",
 634                         SND_SOC_NOPM, 0, 0, &amicl_control),
 635         SND_SOC_DAPM_MUX("Analog Right Capture Route",
 636                         SND_SOC_NOPM, 0, 0, &amicr_control),
 637
 638         /* Analog capture PGAs */
 639         SND_SOC_DAPM_PGA("MicAmpL",
 640                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
 641         SND_SOC_DAPM_PGA("MicAmpR",
 642                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
 643
 644         /* Auxiliary FM PGAs */
 645         SND_SOC_DAPM_PGA("AFMAmpL",
 646                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
 647         SND_SOC_DAPM_PGA("AFMAmpR",
 648                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
 649
 650         /* ADCs */
 651         SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
 652         SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
 653
 654         /* Microphone bias */
 655         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
 656                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
 657         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
 658                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
 659         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
 660                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
 661         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
 662                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
 663
 664         /* DACs */
 665         SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
 666         SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
 667         SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
 668         SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
 669         /* Virtual DAC for vibra path (DL4 channel) */
 670         SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
 671
 672         SND_SOC_DAPM_MUX("Handsfree Left Playback",
 673                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
 674         SND_SOC_DAPM_MUX("Handsfree Right Playback",
 675                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
 676         /* Analog playback Muxes */
 677         SND_SOC_DAPM_MUX("Headset Left Playback",
 678                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
 679         SND_SOC_DAPM_MUX("Headset Right Playback",
 680                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
 681
 682         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
 683                         &vibral_mux_controls),
 684         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
 685                         &vibrar_mux_controls),
 686
 687         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
 688                         &ep_path_enable_control),
 689         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
 690                         &auxl_switch_control),
 691         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
 692                         &auxr_switch_control),
 693
 694         /* Analog playback drivers */
 695         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
 696                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
 697         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
 698                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
 699         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
 700                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
 701         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
 702                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
 703         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
 704                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
 705                         twl6040_ep_drv_event,
 706                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 707         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
 708                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
 709         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
 710                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
 711
 712         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
 713                             NULL, 0),
 714         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
 715                             NULL, 0),
 716         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
 717                               twl6040_hs_dac_event,
 718                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 719
 720         /* Analog playback PGAs */
 721         SND_SOC_DAPM_PGA("HF Left PGA",
 722                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
 723         SND_SOC_DAPM_PGA("HF Right PGA",
 724                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
 725
 726 };
 727
 728 static const struct snd_soc_dapm_route intercon[] = {
 729         /* Stream -> DAC mapping */
 730         {"HSDAC Left", NULL, "Legacy Playback"},
 731         {"HSDAC Left", NULL, "Headset Playback"},
 732         {"HSDAC Right", NULL, "Legacy Playback"},
 733         {"HSDAC Right", NULL, "Headset Playback"},
 734
 735         {"HFDAC Left", NULL, "Legacy Playback"},
 736         {"HFDAC Left", NULL, "Handsfree Playback"},
 737         {"HFDAC Right", NULL, "Legacy Playback"},
 738         {"HFDAC Right", NULL, "Handsfree Playback"},
 739
 740         {"VIBRA DAC", NULL, "Legacy Playback"},
 741         {"VIBRA DAC", NULL, "Vibra Playback"},
 742
 743         /* ADC -> Stream mapping */
 744         {"Legacy Capture" , NULL, "ADC Left"},
 745         {"Capture", NULL, "ADC Left"},
 746         {"Legacy Capture", NULL, "ADC Right"},
 747         {"Capture" , NULL, "ADC Right"},
 748
 749         /* Capture path */
 750         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
 751         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
 752         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
 753
 754         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
 755         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
 756         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
 757
 758         {"MicAmpL", NULL, "Analog Left Capture Route"},
 759         {"MicAmpR", NULL, "Analog Right Capture Route"},
 760
 761         {"ADC Left", NULL, "MicAmpL"},
 762         {"ADC Right", NULL, "MicAmpR"},
 763
 764         /* AFM path */
 765         {"AFMAmpL", NULL, "AFML"},
 766         {"AFMAmpR", NULL, "AFMR"},
 767
 768         {"HSDAC Left", NULL, "HSDAC Power"},
 769         {"HSDAC Right", NULL, "HSDAC Power"},
 770
 771         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
 772         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
 773
 774         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
 775         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
 776
 777         {"HS Left Driver", NULL, "Headset Left Playback"},
 778         {"HS Right Driver", NULL, "Headset Right Playback"},
 779
 780         {"HSOL", NULL, "HS Left Driver"},
 781         {"HSOR", NULL, "HS Right Driver"},
 782
 783         /* Earphone playback path */
 784         {"Earphone Playback", "Switch", "HSDAC Left"},
 785         {"Earphone Driver", NULL, "Earphone Playback"},
 786         {"EP", NULL, "Earphone Driver"},
 787
 788         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
 789         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
 790
 791         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
 792         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
 793
 794         {"HF Left PGA", NULL, "Handsfree Left Playback"},
 795         {"HF Right PGA", NULL, "Handsfree Right Playback"},
 796
 797         {"HF Left Driver", NULL, "HF Left PGA"},
 798         {"HF Right Driver", NULL, "HF Right PGA"},
 799
 800         {"HFL", NULL, "HF Left Driver"},
 801         {"HFR", NULL, "HF Right Driver"},
 802
 803         {"AUXL Playback", "Switch", "HF Left PGA"},
 804         {"AUXR Playback", "Switch", "HF Right PGA"},
 805
 806         {"AUXL", NULL, "AUXL Playback"},
 807         {"AUXR", NULL, "AUXR Playback"},
 808
 809         /* Vibrator paths */
 810         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
 811         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
 812
 813         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
 814         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
 815         {"Vibra Left Driver", NULL, "Vibra Left Control"},
 816         {"Vibra Right Driver", NULL, "Vibra Right Control"},
 817
 818         {"VIBRAL", NULL, "Vibra Left Driver"},
 819         {"VIBRAR", NULL, "Vibra Right Driver"},
 820 };
 821
 822 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
 823                                 enum snd_soc_bias_level level)
 824 {
 825         struct twl6040 *twl6040 = codec->control_data;
 826         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 827         int ret = 0;
 828
 829         switch (level) {
 830         case SND_SOC_BIAS_ON:
 831                 break;
 832         case SND_SOC_BIAS_PREPARE:
 833                 break;
 834         case SND_SOC_BIAS_STANDBY:
 835                 if (priv->codec_powered) {
 836                         /* Select low power PLL in standby */
 837                         ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
 838                                               32768, 19200000);
 839                         break;
 840                 }
 841
 842                 ret = twl6040_power(twl6040, 1);
 843                 if (ret)
 844                         break;
 845
 846                 priv->codec_powered = 1;
 847
 848                 /* Set external boost GPO */
 849                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
 850                 break;
 851         case SND_SOC_BIAS_OFF:
 852                 if (!priv->codec_powered)
 853                         break;
 854
 855                 twl6040_power(twl6040, 0);
 856                 priv->codec_powered = 0;
 857                 break;
 858         }
 859
 860         return ret;
 861 }
 862
 863 static int twl6040_startup(struct snd_pcm_substream *substream,
 864                         struct snd_soc_dai *dai)
 865 {
 866         struct snd_soc_codec *codec = dai->codec;
 867         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 868
 869         snd_pcm_hw_constraint_list(substream->runtime, 0,
 870                                 SNDRV_PCM_HW_PARAM_RATE,
 871                                 &sysclk_constraints[priv->pll_power_mode]);
 872
 873         return 0;
 874 }
 875
 876 static int twl6040_hw_params(struct snd_pcm_substream *substream,
 877                         struct snd_pcm_hw_params *params,
 878                         struct snd_soc_dai *dai)
 879 {
 880         struct snd_soc_codec *codec = dai->codec;
 881         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 882         int rate;
 883
 884         rate = params_rate(params);
 885         switch (rate) {
 886         case 11250:
 887         case 22500:
 888         case 44100:
 889         case 88200:
 890                 /* These rates are not supported when HPPLL is in use */
 891                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
 892                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
 893                                 rate);
 894                         return -EINVAL;
 895                 }
 896                 priv->sysclk = 17640000;
 897                 break;
 898         case 8000:
 899         case 16000:
 900         case 32000:
 901         case 48000:
 902         case 96000:
 903                 priv->sysclk = 19200000;
 904                 break;
 905         default:
 906                 dev_err(codec->dev, "unsupported rate %d\n", rate);
 907                 return -EINVAL;
 908         }
 909
 910         return 0;
 911 }
 912
 913 static int twl6040_prepare(struct snd_pcm_substream *substream,
 914                         struct snd_soc_dai *dai)
 915 {
 916         struct snd_soc_codec *codec = dai->codec;
 917         struct twl6040 *twl6040 = codec->control_data;
 918         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 919         int ret;
 920
 921         if (!priv->sysclk) {
 922                 dev_err(codec->dev,
 923                         "no mclk configured, call set_sysclk() on init\n");
 924                 return -EINVAL;
 925         }
 926
 927         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
 928         if (ret) {
 929                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
 930                 return -EPERM;
 931         }
 932
 933         return 0;
 934 }
 935
 936 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 937                 int clk_id, unsigned int freq, int dir)
 938 {
 939         struct snd_soc_codec *codec = codec_dai->codec;
 940         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 941
 942         switch (clk_id) {
 943         case TWL6040_SYSCLK_SEL_LPPLL:
 944         case TWL6040_SYSCLK_SEL_HPPLL:
 945                 priv->pll = clk_id;
 946                 priv->clk_in = freq;
 947                 break;
 948         default:
 949                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
 950                 return -EINVAL;
 951         }
 952
 953         return 0;
 954 }
 955
 956 static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id id,
 957                              int mute)
 958 {
 959         struct twl6040 *twl6040 = codec->control_data;
 960         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 961         int hslctl, hsrctl, earctl;
 962         int hflctl, hfrctl;
 963
 964         switch (id) {
 965         case TWL6040_DAI_DL1:
 966                 hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
 967                 hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
 968                 earctl = twl6040_read(codec, TWL6040_REG_EARCTL);
 969
 970                 if (mute) {
 971                         /* Power down drivers and DACs */
 972                         earctl &= ~0x01;
 973                         hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
 974                         hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
 975
 976                 }
 977
 978                 twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
 979                 twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
 980                 twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
 981                 priv->dl1_unmuted = !mute;
 982                 break;
 983         case TWL6040_DAI_DL2:
 984                 hflctl = twl6040_read(codec, TWL6040_REG_HFLCTL);
 985                 hfrctl = twl6040_read(codec, TWL6040_REG_HFRCTL);
 986
 987                 if (mute) {
 988                         /* Power down drivers and DACs */
 989                         hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
 990                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
 991                         hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
 992                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
 993                 }
 994
 995                 twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
 996                 twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
 997                 priv->dl2_unmuted = !mute;
 998                 break;
 999         default:
1000                 break;
1001         }
1002 }
1003
1004 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
1005 {
1006         switch (dai->id) {
1007         case TWL6040_DAI_LEGACY:
1008                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL1, mute);
1009                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL2, mute);
1010                 break;
1011         case TWL6040_DAI_DL1:
1012         case TWL6040_DAI_DL2:
1013                 twl6040_mute_path(dai->codec, dai->id, mute);
1014                 break;
1015         default:
1016                 break;
1017         }
1018
1019         return 0;
1020 }
1021
1022 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1023         .startup        = twl6040_startup,
1024         .hw_params      = twl6040_hw_params,
1025         .prepare        = twl6040_prepare,
1026         .set_sysclk     = twl6040_set_dai_sysclk,
1027         .digital_mute   = twl6040_digital_mute,
1028 };
1029
1030 static struct snd_soc_dai_driver twl6040_dai[] = {
1031 {
1032         .name = "twl6040-legacy",
1033         .id = TWL6040_DAI_LEGACY,
1034         .playback = {
1035                 .stream_name = "Legacy Playback",
1036                 .channels_min = 1,
1037                 .channels_max = 5,
1038                 .rates = TWL6040_RATES,
1039                 .formats = TWL6040_FORMATS,
1040         },
1041         .capture = {
1042                 .stream_name = "Legacy Capture",
1043                 .channels_min = 1,
1044                 .channels_max = 2,
1045                 .rates = TWL6040_RATES,
1046                 .formats = TWL6040_FORMATS,
1047         },
1048         .ops = &twl6040_dai_ops,
1049 },
1050 {
1051         .name = "twl6040-ul",
1052         .id = TWL6040_DAI_UL,
1053         .capture = {
1054                 .stream_name = "Capture",
1055                 .channels_min = 1,
1056                 .channels_max = 2,
1057                 .rates = TWL6040_RATES,
1058                 .formats = TWL6040_FORMATS,
1059         },
1060         .ops = &twl6040_dai_ops,
1061 },
1062 {
1063         .name = "twl6040-dl1",
1064         .id = TWL6040_DAI_DL1,
1065         .playback = {
1066                 .stream_name = "Headset Playback",
1067                 .channels_min = 1,
1068                 .channels_max = 2,
1069                 .rates = TWL6040_RATES,
1070                 .formats = TWL6040_FORMATS,
1071         },
1072         .ops = &twl6040_dai_ops,
1073 },
1074 {
1075         .name = "twl6040-dl2",
1076         .id = TWL6040_DAI_DL2,
1077         .playback = {
1078                 .stream_name = "Handsfree Playback",
1079                 .channels_min = 1,
1080                 .channels_max = 2,
1081                 .rates = TWL6040_RATES,
1082                 .formats = TWL6040_FORMATS,
1083         },
1084         .ops = &twl6040_dai_ops,
1085 },
1086 {
1087         .name = "twl6040-vib",
1088         .id = TWL6040_DAI_VIB,
1089         .playback = {
1090                 .stream_name = "Vibra Playback",
1091                 .channels_min = 1,
1092                 .channels_max = 1,
1093                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1094                 .formats = TWL6040_FORMATS,
1095         },
1096         .ops = &twl6040_dai_ops,
1097 },
1098 };
1099
1100 static int twl6040_probe(struct snd_soc_codec *codec)
1101 {
1102         struct twl6040_data *priv;
1103         struct twl6040 *twl6040 = dev_get_drvdata(codec->dev->parent);
1104         struct platform_device *pdev = to_platform_device(codec->dev);
1105         int ret = 0;
1106
1107         priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
1108         if (priv == NULL)
1109                 return -ENOMEM;
1110
1111         snd_soc_codec_set_drvdata(codec, priv);
1112
1113         priv->codec = codec;
1114         codec->control_data = twl6040;
1115
1116         priv->plug_irq = platform_get_irq(pdev, 0);
1117         if (priv->plug_irq < 0) {
1118                 dev_err(codec->dev, "invalid irq\n");
1119                 return -EINVAL;
1120         }
1121
1122         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1123
1124         mutex_init(&priv->mutex);
1125
1126         ret = request_threaded_irq(priv->plug_irq, NULL,
1127                                         twl6040_audio_handler,
1128                                         IRQF_NO_SUSPEND | IRQF_ONESHOT,
1129                                         "twl6040_irq_plug", codec);
1130         if (ret) {
1131                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1132                 return ret;
1133         }
1134
1135         snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
1136         twl6040_init_chip(codec);
1137
1138         return 0;
1139 }
1140
1141 static int twl6040_remove(struct snd_soc_codec *codec)
1142 {
1143         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1144
1145         free_irq(priv->plug_irq, codec);
1146
1147         return 0;
1148 }
1149
1150 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1151         .probe = twl6040_probe,
1152         .remove = twl6040_remove,
1153         .read = twl6040_read,
1154         .write = twl6040_write,
1155         .set_bias_level = twl6040_set_bias_level,
1156         .suspend_bias_off = true,
1157         .ignore_pmdown_time = true,
1158
1159         .component_driver = {
1160                 .controls               = twl6040_snd_controls,
1161                 .num_controls           = ARRAY_SIZE(twl6040_snd_controls),
1162                 .dapm_widgets           = twl6040_dapm_widgets,
1163                 .num_dapm_widgets       = ARRAY_SIZE(twl6040_dapm_widgets),
1164                 .dapm_routes            = intercon,
1165                 .num_dapm_routes        = ARRAY_SIZE(intercon),
1166         },
1167 };
1168
1169 static int twl6040_codec_probe(struct platform_device *pdev)
1170 {
1171         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1172                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1173 }
1174
1175 static int twl6040_codec_remove(struct platform_device *pdev)
1176 {
1177         snd_soc_unregister_codec(&pdev->dev);
1178         return 0;
1179 }
1180
1181 static struct platform_driver twl6040_codec_driver = {
1182         .driver = {
1183                 .name = "twl6040-codec",
1184         },
1185         .probe = twl6040_codec_probe,
1186         .remove = twl6040_codec_remove,
1187 };
1188
1189 module_platform_driver(twl6040_codec_driver);
1190
1191 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1192 MODULE_AUTHOR("Misael Lopez Cruz");
1193 MODULE_LICENSE("GPL");