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 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
  42 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
  43
  44 #define TWL6040_OUTHS_0dB 0x00
  45 #define TWL6040_OUTHS_M30dB 0x0F
  46 #define TWL6040_OUTHF_0dB 0x03
  47 #define TWL6040_OUTHF_M52dB 0x1D
  48
  49 /* Shadow register used by the driver */
  50 #define TWL6040_REG_SW_SHADOW   0x2F
  51 #define TWL6040_CACHEREGNUM     (TWL6040_REG_SW_SHADOW + 1)
  52
  53 /* TWL6040_REG_SW_SHADOW (0x2F) fields */
  54 #define TWL6040_EAR_PATH_ENABLE 0x01
  55
  56 struct twl6040_jack_data {
  57         struct snd_soc_jack *jack;
  58         struct delayed_work work;
  59         int report;
  60 };
  61
  62 /* codec private data */
  63 struct twl6040_data {
  64         int plug_irq;
  65         int codec_powered;
  66         int pll;
  67         int pll_power_mode;
  68         int hs_power_mode;
  69         int hs_power_mode_locked;
  70         unsigned int clk_in;
  71         unsigned int sysclk;
  72         struct twl6040_jack_data hs_jack;
  73         struct snd_soc_codec *codec;
  74         struct mutex mutex;
  75 };
  76
  77 /*
  78  * twl6040 register cache & default register settings
  79  */
  80 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
  81         0x00, /* not used       0x00    */
  82         0x4B, /* REG_ASICID     0x01 (ro) */
  83         0x00, /* REG_ASICREV    0x02 (ro) */
  84         0x00, /* REG_INTID      0x03    */
  85         0x00, /* REG_INTMR      0x04    */
  86         0x00, /* REG_NCPCTRL    0x05    */
  87         0x00, /* REG_LDOCTL     0x06    */
  88         0x60, /* REG_HPPLLCTL   0x07    */
  89         0x00, /* REG_LPPLLCTL   0x08    */
  90         0x4A, /* REG_LPPLLDIV   0x09    */
  91         0x00, /* REG_AMICBCTL   0x0A    */
  92         0x00, /* REG_DMICBCTL   0x0B    */
  93         0x00, /* REG_MICLCTL    0x0C    */
  94         0x00, /* REG_MICRCTL    0x0D    */
  95         0x00, /* REG_MICGAIN    0x0E    */
  96         0x1B, /* REG_LINEGAIN   0x0F    */
  97         0x00, /* REG_HSLCTL     0x10    */
  98         0x00, /* REG_HSRCTL     0x11    */
  99         0x00, /* REG_HSGAIN     0x12    */
 100         0x00, /* REG_EARCTL     0x13    */
 101         0x00, /* REG_HFLCTL     0x14    */
 102         0x00, /* REG_HFLGAIN    0x15    */
 103         0x00, /* REG_HFRCTL     0x16    */
 104         0x00, /* REG_HFRGAIN    0x17    */
 105         0x00, /* REG_VIBCTLL    0x18    */
 106         0x00, /* REG_VIBDATL    0x19    */
 107         0x00, /* REG_VIBCTLR    0x1A    */
 108         0x00, /* REG_VIBDATR    0x1B    */
 109         0x00, /* REG_HKCTL1     0x1C    */
 110         0x00, /* REG_HKCTL2     0x1D    */
 111         0x00, /* REG_GPOCTL     0x1E    */
 112         0x00, /* REG_ALB        0x1F    */
 113         0x00, /* REG_DLB        0x20    */
 114         0x00, /* not used       0x21    */
 115         0x00, /* not used       0x22    */
 116         0x00, /* not used       0x23    */
 117         0x00, /* not used       0x24    */
 118         0x00, /* not used       0x25    */
 119         0x00, /* not used       0x26    */
 120         0x00, /* not used       0x27    */
 121         0x00, /* REG_TRIM1      0x28    */
 122         0x00, /* REG_TRIM2      0x29    */
 123         0x00, /* REG_TRIM3      0x2A    */
 124         0x00, /* REG_HSOTRIM    0x2B    */
 125         0x00, /* REG_HFOTRIM    0x2C    */
 126         0x09, /* REG_ACCCTL     0x2D    */
 127         0x00, /* REG_STATUS     0x2E (ro) */
 128
 129         0x00, /* REG_SW_SHADOW  0x2F - Shadow, non HW register */
 130 };
 131
 132 /* List of registers to be restored after power up */
 133 static const int twl6040_restore_list[] = {
 134         TWL6040_REG_MICLCTL,
 135         TWL6040_REG_MICRCTL,
 136         TWL6040_REG_MICGAIN,
 137         TWL6040_REG_LINEGAIN,
 138         TWL6040_REG_HSLCTL,
 139         TWL6040_REG_HSRCTL,
 140         TWL6040_REG_HSGAIN,
 141         TWL6040_REG_EARCTL,
 142         TWL6040_REG_HFLCTL,
 143         TWL6040_REG_HFLGAIN,
 144         TWL6040_REG_HFRCTL,
 145         TWL6040_REG_HFRGAIN,
 146 };
 147
 148 /* set of rates for each pll: low-power and high-performance */
 149 static unsigned int lp_rates[] = {
 150         8000,
 151         11250,
 152         16000,
 153         22500,
 154         32000,
 155         44100,
 156         48000,
 157         88200,
 158         96000,
 159 };
 160
 161 static unsigned int hp_rates[] = {
 162         8000,
 163         16000,
 164         32000,
 165         48000,
 166         96000,
 167 };
 168
 169 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 170         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 171         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 172 };
 173
 174 /*
 175  * read twl6040 register cache
 176  */
 177 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
 178                                                 unsigned int reg)
 179 {
 180         u8 *cache = codec->reg_cache;
 181
 182         if (reg >= TWL6040_CACHEREGNUM)
 183                 return -EIO;
 184
 185         return cache[reg];
 186 }
 187
 188 /*
 189  * write twl6040 register cache
 190  */
 191 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
 192                                                 u8 reg, u8 value)
 193 {
 194         u8 *cache = codec->reg_cache;
 195
 196         if (reg >= TWL6040_CACHEREGNUM)
 197                 return;
 198         cache[reg] = value;
 199 }
 200
 201 /*
 202  * read from twl6040 hardware register
 203  */
 204 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
 205                         unsigned int reg)
 206 {
 207         struct twl6040 *twl6040 = codec->control_data;
 208         u8 value;
 209
 210         if (reg >= TWL6040_CACHEREGNUM)
 211                 return -EIO;
 212
 213         if (likely(reg < TWL6040_REG_SW_SHADOW)) {
 214                 value = twl6040_reg_read(twl6040, reg);
 215                 twl6040_write_reg_cache(codec, reg, value);
 216         } else {
 217                 value = twl6040_read_reg_cache(codec, reg);
 218         }
 219
 220         return value;
 221 }
 222
 223 /*
 224  * write to the twl6040 register space
 225  */
 226 static int twl6040_write(struct snd_soc_codec *codec,
 227                         unsigned int reg, unsigned int value)
 228 {
 229         struct twl6040 *twl6040 = codec->control_data;
 230
 231         if (reg >= TWL6040_CACHEREGNUM)
 232                 return -EIO;
 233
 234         twl6040_write_reg_cache(codec, reg, value);
 235         if (likely(reg < TWL6040_REG_SW_SHADOW))
 236                 return twl6040_reg_write(twl6040, reg, value);
 237         else
 238                 return 0;
 239 }
 240
 241 static void twl6040_init_chip(struct snd_soc_codec *codec)
 242 {
 243         struct twl6040 *twl6040 = codec->control_data;
 244         u8 val;
 245
 246         /* Update reg_cache: ASICREV, and TRIM values */
 247         val = twl6040_get_revid(twl6040);
 248         twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 249
 250         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
 251         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
 252         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
 253         twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
 254         twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
 255
 256         /* Change chip defaults */
 257         /* No imput selected for microphone amplifiers */
 258         twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
 259         twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18);
 260
 261         /*
 262          * We need to lower the default gain values, so the ramp code
 263          * can work correctly for the first playback.
 264          * This reduces the pop noise heard at the first playback.
 265          */
 266         twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff);
 267         twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e);
 268         twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d);
 269         twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d);
 270         twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0);
 271 }
 272
 273 static void twl6040_restore_regs(struct snd_soc_codec *codec)
 274 {
 275         u8 *cache = codec->reg_cache;
 276         int reg, i;
 277
 278         for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
 279                 reg = twl6040_restore_list[i];
 280                 twl6040_write(codec, reg, cache[reg]);
 281         }
 282 }
 283
 284 /* set headset dac and driver power mode */
 285 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
 286 {
 287         int hslctl, hsrctl;
 288         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
 289
 290         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 291         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 292
 293         if (high_perf) {
 294                 hslctl &= ~mask;
 295                 hsrctl &= ~mask;
 296         } else {
 297                 hslctl |= mask;
 298                 hsrctl |= mask;
 299         }
 300
 301         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 302         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 303
 304         return 0;
 305 }
 306
 307 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
 308                         struct snd_kcontrol *kcontrol, int event)
 309 {
 310         struct snd_soc_codec *codec = w->codec;
 311         u8 hslctl, hsrctl;
 312
 313         /*
 314          * Workaround for Headset DC offset caused pop noise:
 315          * Both HS DAC need to be turned on (before the HS driver) and off at
 316          * the same time.
 317          */
 318         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 319         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 320         if (SND_SOC_DAPM_EVENT_ON(event)) {
 321                 hslctl |= TWL6040_HSDACENA;
 322                 hsrctl |= TWL6040_HSDACENA;
 323         } else {
 324                 hslctl &= ~TWL6040_HSDACENA;
 325                 hsrctl &= ~TWL6040_HSDACENA;
 326         }
 327         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 328         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 329
 330         msleep(1);
 331         return 0;
 332 }
 333
 334 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
 335                         struct snd_kcontrol *kcontrol, int event)
 336 {
 337         struct snd_soc_codec *codec = w->codec;
 338         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 339         int ret = 0;
 340
 341         if (SND_SOC_DAPM_EVENT_ON(event)) {
 342                 /* Earphone doesn't support low power mode */
 343                 priv->hs_power_mode_locked = 1;
 344                 ret = headset_power_mode(codec, 1);
 345         } else {
 346                 priv->hs_power_mode_locked = 0;
 347                 ret = headset_power_mode(codec, priv->hs_power_mode);
 348         }
 349
 350         msleep(1);
 351
 352         return ret;
 353 }
 354
 355 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
 356                                    struct snd_soc_jack *jack, int report)
 357 {
 358         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 359         int status;
 360
 361         mutex_lock(&priv->mutex);
 362
 363         /* Sync status */
 364         status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
 365         if (status & TWL6040_PLUGCOMP)
 366                 snd_soc_jack_report(jack, report, report);
 367         else
 368                 snd_soc_jack_report(jack, 0, report);
 369
 370         mutex_unlock(&priv->mutex);
 371 }
 372
 373 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
 374                                 struct snd_soc_jack *jack, int report)
 375 {
 376         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 377         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 378
 379         hs_jack->jack = jack;
 380         hs_jack->report = report;
 381
 382         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 383 }
 384 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
 385
 386 static void twl6040_accessory_work(struct work_struct *work)
 387 {
 388         struct twl6040_data *priv = container_of(work,
 389                                         struct twl6040_data, hs_jack.work.work);
 390         struct snd_soc_codec *codec = priv->codec;
 391         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 392
 393         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 394 }
 395
 396 /* audio interrupt handler */
 397 static irqreturn_t twl6040_audio_handler(int irq, void *data)
 398 {
 399         struct snd_soc_codec *codec = data;
 400         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 401
 402         schedule_delayed_work(&priv->hs_jack.work, msecs_to_jiffies(200));
 403
 404         return IRQ_HANDLED;
 405 }
 406
 407 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
 408         struct snd_ctl_elem_value *ucontrol)
 409 {
 410         struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
 411         struct snd_soc_dapm_widget *widget = wlist->widgets[0];
 412         struct snd_soc_codec *codec = widget->codec;
 413         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 414         unsigned int val;
 415
 416         /* Do not allow changes while Input/FF efect is running */
 417         val = twl6040_read_reg_volatile(codec, e->reg);
 418         if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
 419                 return -EBUSY;
 420
 421         return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 422 }
 423
 424 /*
 425  * MICATT volume control:
 426  * from -6 to 0 dB in 6 dB steps
 427  */
 428 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 429
 430 /*
 431  * MICGAIN volume control:
 432  * from 6 to 30 dB in 6 dB steps
 433  */
 434 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
 435
 436 /*
 437  * AFMGAIN volume control:
 438  * from -18 to 24 dB in 6 dB steps
 439  */
 440 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
 441
 442 /*
 443  * HSGAIN volume control:
 444  * from -30 to 0 dB in 2 dB steps
 445  */
 446 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
 447
 448 /*
 449  * HFGAIN volume control:
 450  * from -52 to 6 dB in 2 dB steps
 451  */
 452 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
 453
 454 /*
 455  * EPGAIN volume control:
 456  * from -24 to 6 dB in 2 dB steps
 457  */
 458 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
 459
 460 /* Left analog microphone selection */
 461 static const char *twl6040_amicl_texts[] =
 462         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
 463
 464 /* Right analog microphone selection */
 465 static const char *twl6040_amicr_texts[] =
 466         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
 467
 468 static const struct soc_enum twl6040_enum[] = {
 469         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
 470         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
 471 };
 472
 473 static const char *twl6040_hs_texts[] = {
 474         "Off", "HS DAC", "Line-In amp"
 475 };
 476
 477 static const struct soc_enum twl6040_hs_enum[] = {
 478         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 479                         twl6040_hs_texts),
 480         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 481                         twl6040_hs_texts),
 482 };
 483
 484 static const char *twl6040_hf_texts[] = {
 485         "Off", "HF DAC", "Line-In amp"
 486 };
 487
 488 static const struct soc_enum twl6040_hf_enum[] = {
 489         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 490                         twl6040_hf_texts),
 491         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 492                         twl6040_hf_texts),
 493 };
 494
 495 static const char *twl6040_vibrapath_texts[] = {
 496         "Input FF", "Audio PDM"
 497 };
 498
 499 static const struct soc_enum twl6040_vibra_enum[] = {
 500         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
 501                         ARRAY_SIZE(twl6040_vibrapath_texts),
 502                         twl6040_vibrapath_texts),
 503         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
 504                         ARRAY_SIZE(twl6040_vibrapath_texts),
 505                         twl6040_vibrapath_texts),
 506 };
 507
 508 static const struct snd_kcontrol_new amicl_control =
 509         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
 510
 511 static const struct snd_kcontrol_new amicr_control =
 512         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
 513
 514 /* Headset DAC playback switches */
 515 static const struct snd_kcontrol_new hsl_mux_controls =
 516         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
 517
 518 static const struct snd_kcontrol_new hsr_mux_controls =
 519         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
 520
 521 /* Handsfree DAC playback switches */
 522 static const struct snd_kcontrol_new hfl_mux_controls =
 523         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
 524
 525 static const struct snd_kcontrol_new hfr_mux_controls =
 526         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 527
 528 static const struct snd_kcontrol_new ep_path_enable_control =
 529         SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
 530
 531 static const struct snd_kcontrol_new auxl_switch_control =
 532         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
 533
 534 static const struct snd_kcontrol_new auxr_switch_control =
 535         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
 536
 537 /* Vibra playback switches */
 538 static const struct snd_kcontrol_new vibral_mux_controls =
 539         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
 540                 snd_soc_dapm_get_enum_double,
 541                 twl6040_soc_dapm_put_vibra_enum);
 542
 543 static const struct snd_kcontrol_new vibrar_mux_controls =
 544         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
 545                 snd_soc_dapm_get_enum_double,
 546                 twl6040_soc_dapm_put_vibra_enum);
 547
 548 /* Headset power mode */
 549 static const char *twl6040_power_mode_texts[] = {
 550         "Low-Power", "High-Performance",
 551 };
 552
 553 static const struct soc_enum twl6040_power_mode_enum =
 554         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
 555                         twl6040_power_mode_texts);
 556
 557 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
 558         struct snd_ctl_elem_value *ucontrol)
 559 {
 560         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 561         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 562
 563         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
 564
 565         return 0;
 566 }
 567
 568 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
 569         struct snd_ctl_elem_value *ucontrol)
 570 {
 571         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 572         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 573         int high_perf = ucontrol->value.enumerated.item[0];
 574         int ret = 0;
 575
 576         if (!priv->hs_power_mode_locked)
 577                 ret = headset_power_mode(codec, high_perf);
 578
 579         if (!ret)
 580                 priv->hs_power_mode = high_perf;
 581
 582         return ret;
 583 }
 584
 585 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
 586         struct snd_ctl_elem_value *ucontrol)
 587 {
 588         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 589         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 590
 591         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
 592
 593         return 0;
 594 }
 595
 596 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
 597         struct snd_ctl_elem_value *ucontrol)
 598 {
 599         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 600         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 601
 602         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
 603
 604         return 0;
 605 }
 606
 607 int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
 608 {
 609         struct snd_soc_dapm_context *dapm = &codec->dapm;
 610
 611         if (snd_soc_dapm_get_pin_status(dapm, "EP"))
 612                 return -1; /* -1dB */
 613
 614         if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
 615                 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
 616
 617                 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL);
 618                 if (val & TWL6040_HSDACMODE)
 619                         /* HSDACL in LP mode */
 620                         return -8; /* -8dB */
 621                 else
 622                         /* HSDACL in HP mode */
 623                         return -1; /* -1dB */
 624         }
 625         return 0; /* 0dB */
 626 }
 627 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
 628
 629 int twl6040_get_clk_id(struct snd_soc_codec *codec)
 630 {
 631         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 632
 633         return priv->pll_power_mode;
 634 }
 635 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
 636
 637 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
 638 {
 639         if (unlikely(trim >= TWL6040_TRIM_INVAL))
 640                 return -EINVAL;
 641
 642         return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim);
 643 }
 644 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
 645
 646 int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
 647 {
 648         struct twl6040 *twl6040 = codec->control_data;
 649
 650         if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
 651                 /* For ES under ES_1.3 HS step is 2 mV */
 652                 return 2;
 653         else
 654                 /* For ES_1.3 HS step is 1 mV */
 655                 return 1;
 656 }
 657 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
 658
 659 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
 660         /* Capture gains */
 661         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
 662                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
 663         SOC_DOUBLE_TLV("Capture Volume",
 664                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
 665
 666         /* AFM gains */
 667         SOC_DOUBLE_TLV("Aux FM Volume",
 668                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
 669
 670         /* Playback gains */
 671         SOC_DOUBLE_TLV("Headset Playback Volume",
 672                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
 673         SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
 674                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
 675         SOC_SINGLE_TLV("Earphone Playback Volume",
 676                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
 677
 678         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
 679                 twl6040_headset_power_get_enum,
 680                 twl6040_headset_power_put_enum),
 681
 682         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
 683                 twl6040_pll_get_enum, twl6040_pll_put_enum),
 684 };
 685
 686 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
 687         /* Inputs */
 688         SND_SOC_DAPM_INPUT("MAINMIC"),
 689         SND_SOC_DAPM_INPUT("HSMIC"),
 690         SND_SOC_DAPM_INPUT("SUBMIC"),
 691         SND_SOC_DAPM_INPUT("AFML"),
 692         SND_SOC_DAPM_INPUT("AFMR"),
 693
 694         /* Outputs */
 695         SND_SOC_DAPM_OUTPUT("HSOL"),
 696         SND_SOC_DAPM_OUTPUT("HSOR"),
 697         SND_SOC_DAPM_OUTPUT("HFL"),
 698         SND_SOC_DAPM_OUTPUT("HFR"),
 699         SND_SOC_DAPM_OUTPUT("EP"),
 700         SND_SOC_DAPM_OUTPUT("AUXL"),
 701         SND_SOC_DAPM_OUTPUT("AUXR"),
 702         SND_SOC_DAPM_OUTPUT("VIBRAL"),
 703         SND_SOC_DAPM_OUTPUT("VIBRAR"),
 704
 705         /* Analog input muxes for the capture amplifiers */
 706         SND_SOC_DAPM_MUX("Analog Left Capture Route",
 707                         SND_SOC_NOPM, 0, 0, &amicl_control),
 708         SND_SOC_DAPM_MUX("Analog Right Capture Route",
 709                         SND_SOC_NOPM, 0, 0, &amicr_control),
 710
 711         /* Analog capture PGAs */
 712         SND_SOC_DAPM_PGA("MicAmpL",
 713                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
 714         SND_SOC_DAPM_PGA("MicAmpR",
 715                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
 716
 717         /* Auxiliary FM PGAs */
 718         SND_SOC_DAPM_PGA("AFMAmpL",
 719                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
 720         SND_SOC_DAPM_PGA("AFMAmpR",
 721                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
 722
 723         /* ADCs */
 724         SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
 725         SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
 726
 727         /* Microphone bias */
 728         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
 729                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
 730         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
 731                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
 732         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
 733                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
 734         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
 735                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
 736
 737         /* DACs */
 738         SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
 739         SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
 740         SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
 741         SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
 742         /* Virtual DAC for vibra path (DL4 channel) */
 743         SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
 744
 745         SND_SOC_DAPM_MUX("Handsfree Left Playback",
 746                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
 747         SND_SOC_DAPM_MUX("Handsfree Right Playback",
 748                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
 749         /* Analog playback Muxes */
 750         SND_SOC_DAPM_MUX("Headset Left Playback",
 751                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
 752         SND_SOC_DAPM_MUX("Headset Right Playback",
 753                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
 754
 755         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
 756                         &vibral_mux_controls),
 757         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
 758                         &vibrar_mux_controls),
 759
 760         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
 761                         &ep_path_enable_control),
 762         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
 763                         &auxl_switch_control),
 764         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
 765                         &auxr_switch_control),
 766
 767         /* Analog playback drivers */
 768         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
 769                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
 770         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
 771                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
 772         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
 773                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
 774         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
 775                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
 776         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
 777                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
 778                         twl6040_ep_drv_event,
 779                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 780         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
 781                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
 782         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
 783                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
 784
 785         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
 786                             NULL, 0),
 787         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
 788                             NULL, 0),
 789         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
 790                               twl6040_hs_dac_event,
 791                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 792
 793         /* Analog playback PGAs */
 794         SND_SOC_DAPM_PGA("HF Left PGA",
 795                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
 796         SND_SOC_DAPM_PGA("HF Right PGA",
 797                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
 798
 799 };
 800
 801 static const struct snd_soc_dapm_route intercon[] = {
 802         /* Stream -> DAC mapping */
 803         {"HSDAC Left", NULL, "Legacy Playback"},
 804         {"HSDAC Left", NULL, "Headset Playback"},
 805         {"HSDAC Right", NULL, "Legacy Playback"},
 806         {"HSDAC Right", NULL, "Headset Playback"},
 807
 808         {"HFDAC Left", NULL, "Legacy Playback"},
 809         {"HFDAC Left", NULL, "Handsfree Playback"},
 810         {"HFDAC Right", NULL, "Legacy Playback"},
 811         {"HFDAC Right", NULL, "Handsfree Playback"},
 812
 813         {"VIBRA DAC", NULL, "Legacy Playback"},
 814         {"VIBRA DAC", NULL, "Vibra Playback"},
 815
 816         /* ADC -> Stream mapping */
 817         {"Legacy Capture" , NULL, "ADC Left"},
 818         {"Capture", NULL, "ADC Left"},
 819         {"Legacy Capture", NULL, "ADC Right"},
 820         {"Capture" , NULL, "ADC Right"},
 821
 822         /* Capture path */
 823         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
 824         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
 825         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
 826
 827         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
 828         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
 829         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
 830
 831         {"MicAmpL", NULL, "Analog Left Capture Route"},
 832         {"MicAmpR", NULL, "Analog Right Capture Route"},
 833
 834         {"ADC Left", NULL, "MicAmpL"},
 835         {"ADC Right", NULL, "MicAmpR"},
 836
 837         /* AFM path */
 838         {"AFMAmpL", NULL, "AFML"},
 839         {"AFMAmpR", NULL, "AFMR"},
 840
 841         {"HSDAC Left", NULL, "HSDAC Power"},
 842         {"HSDAC Right", NULL, "HSDAC Power"},
 843
 844         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
 845         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
 846
 847         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
 848         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
 849
 850         {"HS Left Driver", NULL, "Headset Left Playback"},
 851         {"HS Right Driver", NULL, "Headset Right Playback"},
 852
 853         {"HSOL", NULL, "HS Left Driver"},
 854         {"HSOR", NULL, "HS Right Driver"},
 855
 856         /* Earphone playback path */
 857         {"Earphone Playback", "Switch", "HSDAC Left"},
 858         {"Earphone Driver", NULL, "Earphone Playback"},
 859         {"EP", NULL, "Earphone Driver"},
 860
 861         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
 862         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
 863
 864         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
 865         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
 866
 867         {"HF Left PGA", NULL, "Handsfree Left Playback"},
 868         {"HF Right PGA", NULL, "Handsfree Right Playback"},
 869
 870         {"HF Left Driver", NULL, "HF Left PGA"},
 871         {"HF Right Driver", NULL, "HF Right PGA"},
 872
 873         {"HFL", NULL, "HF Left Driver"},
 874         {"HFR", NULL, "HF Right Driver"},
 875
 876         {"AUXL Playback", "Switch", "HF Left PGA"},
 877         {"AUXR Playback", "Switch", "HF Right PGA"},
 878
 879         {"AUXL", NULL, "AUXL Playback"},
 880         {"AUXR", NULL, "AUXR Playback"},
 881
 882         /* Vibrator paths */
 883         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
 884         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
 885
 886         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
 887         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
 888         {"Vibra Left Driver", NULL, "Vibra Left Control"},
 889         {"Vibra Right Driver", NULL, "Vibra Right Control"},
 890
 891         {"VIBRAL", NULL, "Vibra Left Driver"},
 892         {"VIBRAR", NULL, "Vibra Right Driver"},
 893 };
 894
 895 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
 896                                 enum snd_soc_bias_level level)
 897 {
 898         struct twl6040 *twl6040 = codec->control_data;
 899         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 900         int ret;
 901
 902         switch (level) {
 903         case SND_SOC_BIAS_ON:
 904                 break;
 905         case SND_SOC_BIAS_PREPARE:
 906                 break;
 907         case SND_SOC_BIAS_STANDBY:
 908                 if (priv->codec_powered)
 909                         break;
 910
 911                 ret = twl6040_power(twl6040, 1);
 912                 if (ret)
 913                         return ret;
 914
 915                 priv->codec_powered = 1;
 916
 917                 twl6040_restore_regs(codec);
 918
 919                 /* Set external boost GPO */
 920                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
 921                 break;
 922         case SND_SOC_BIAS_OFF:
 923                 if (!priv->codec_powered)
 924                         break;
 925
 926                 twl6040_power(twl6040, 0);
 927                 priv->codec_powered = 0;
 928                 break;
 929         }
 930
 931         codec->dapm.bias_level = level;
 932
 933         return 0;
 934 }
 935
 936 static int twl6040_startup(struct snd_pcm_substream *substream,
 937                         struct snd_soc_dai *dai)
 938 {
 939         struct snd_soc_codec *codec = dai->codec;
 940         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 941
 942         snd_pcm_hw_constraint_list(substream->runtime, 0,
 943                                 SNDRV_PCM_HW_PARAM_RATE,
 944                                 &sysclk_constraints[priv->pll_power_mode]);
 945
 946         return 0;
 947 }
 948
 949 static int twl6040_hw_params(struct snd_pcm_substream *substream,
 950                         struct snd_pcm_hw_params *params,
 951                         struct snd_soc_dai *dai)
 952 {
 953         struct snd_soc_codec *codec = dai->codec;
 954         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 955         int rate;
 956
 957         rate = params_rate(params);
 958         switch (rate) {
 959         case 11250:
 960         case 22500:
 961         case 44100:
 962         case 88200:
 963                 /* These rates are not supported when HPPLL is in use */
 964                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
 965                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
 966                                 rate);
 967                         return -EINVAL;
 968                 }
 969                 priv->sysclk = 17640000;
 970                 break;
 971         case 8000:
 972         case 16000:
 973         case 32000:
 974         case 48000:
 975         case 96000:
 976                 priv->sysclk = 19200000;
 977                 break;
 978         default:
 979                 dev_err(codec->dev, "unsupported rate %d\n", rate);
 980                 return -EINVAL;
 981         }
 982
 983         return 0;
 984 }
 985
 986 static int twl6040_prepare(struct snd_pcm_substream *substream,
 987                         struct snd_soc_dai *dai)
 988 {
 989         struct snd_soc_codec *codec = dai->codec;
 990         struct twl6040 *twl6040 = codec->control_data;
 991         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 992         int ret;
 993
 994         if (!priv->sysclk) {
 995                 dev_err(codec->dev,
 996                         "no mclk configured, call set_sysclk() on init\n");
 997                 return -EINVAL;
 998         }
 999
1000         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
1001         if (ret) {
1002                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
1003                 return -EPERM;
1004         }
1005
1006         return 0;
1007 }
1008
1009 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1010                 int clk_id, unsigned int freq, int dir)
1011 {
1012         struct snd_soc_codec *codec = codec_dai->codec;
1013         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1014
1015         switch (clk_id) {
1016         case TWL6040_SYSCLK_SEL_LPPLL:
1017         case TWL6040_SYSCLK_SEL_HPPLL:
1018                 priv->pll = clk_id;
1019                 priv->clk_in = freq;
1020                 break;
1021         default:
1022                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1023                 return -EINVAL;
1024         }
1025
1026         return 0;
1027 }
1028
1029 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1030         .startup        = twl6040_startup,
1031         .hw_params      = twl6040_hw_params,
1032         .prepare        = twl6040_prepare,
1033         .set_sysclk     = twl6040_set_dai_sysclk,
1034 };
1035
1036 static struct snd_soc_dai_driver twl6040_dai[] = {
1037 {
1038         .name = "twl6040-legacy",
1039         .playback = {
1040                 .stream_name = "Legacy Playback",
1041                 .channels_min = 1,
1042                 .channels_max = 5,
1043                 .rates = TWL6040_RATES,
1044                 .formats = TWL6040_FORMATS,
1045         },
1046         .capture = {
1047                 .stream_name = "Legacy Capture",
1048                 .channels_min = 1,
1049                 .channels_max = 2,
1050                 .rates = TWL6040_RATES,
1051                 .formats = TWL6040_FORMATS,
1052         },
1053         .ops = &twl6040_dai_ops,
1054 },
1055 {
1056         .name = "twl6040-ul",
1057         .capture = {
1058                 .stream_name = "Capture",
1059                 .channels_min = 1,
1060                 .channels_max = 2,
1061                 .rates = TWL6040_RATES,
1062                 .formats = TWL6040_FORMATS,
1063         },
1064         .ops = &twl6040_dai_ops,
1065 },
1066 {
1067         .name = "twl6040-dl1",
1068         .playback = {
1069                 .stream_name = "Headset Playback",
1070                 .channels_min = 1,
1071                 .channels_max = 2,
1072                 .rates = TWL6040_RATES,
1073                 .formats = TWL6040_FORMATS,
1074         },
1075         .ops = &twl6040_dai_ops,
1076 },
1077 {
1078         .name = "twl6040-dl2",
1079         .playback = {
1080                 .stream_name = "Handsfree Playback",
1081                 .channels_min = 1,
1082                 .channels_max = 2,
1083                 .rates = TWL6040_RATES,
1084                 .formats = TWL6040_FORMATS,
1085         },
1086         .ops = &twl6040_dai_ops,
1087 },
1088 {
1089         .name = "twl6040-vib",
1090         .playback = {
1091                 .stream_name = "Vibra Playback",
1092                 .channels_min = 1,
1093                 .channels_max = 1,
1094                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1095                 .formats = TWL6040_FORMATS,
1096         },
1097         .ops = &twl6040_dai_ops,
1098 },
1099 };
1100
1101 #ifdef CONFIG_PM
1102 static int twl6040_suspend(struct snd_soc_codec *codec)
1103 {
1104         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1105
1106         return 0;
1107 }
1108
1109 static int twl6040_resume(struct snd_soc_codec *codec)
1110 {
1111         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1112
1113         return 0;
1114 }
1115 #else
1116 #define twl6040_suspend NULL
1117 #define twl6040_resume NULL
1118 #endif
1119
1120 static int twl6040_probe(struct snd_soc_codec *codec)
1121 {
1122         struct twl6040_data *priv;
1123         struct platform_device *pdev = container_of(codec->dev,
1124                                                    struct platform_device, dev);
1125         int ret = 0;
1126
1127         priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
1128         if (priv == NULL)
1129                 return -ENOMEM;
1130
1131         snd_soc_codec_set_drvdata(codec, priv);
1132
1133         priv->codec = codec;
1134         codec->control_data = dev_get_drvdata(codec->dev->parent);
1135
1136         priv->plug_irq = platform_get_irq(pdev, 0);
1137         if (priv->plug_irq < 0) {
1138                 dev_err(codec->dev, "invalid irq\n");
1139                 return -EINVAL;
1140         }
1141
1142         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1143
1144         mutex_init(&priv->mutex);
1145
1146         ret = devm_request_threaded_irq(codec->dev, priv->plug_irq, NULL,
1147                                         twl6040_audio_handler, IRQF_NO_SUSPEND,
1148                                         "twl6040_irq_plug", codec);
1149         if (ret) {
1150                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1151                 return ret;
1152         }
1153
1154         twl6040_init_chip(codec);
1155
1156         /* power on device */
1157         return twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1158 }
1159
1160 static int twl6040_remove(struct snd_soc_codec *codec)
1161 {
1162         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1163
1164         return 0;
1165 }
1166
1167 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1168         .probe = twl6040_probe,
1169         .remove = twl6040_remove,
1170         .suspend = twl6040_suspend,
1171         .resume = twl6040_resume,
1172         .read = twl6040_read_reg_cache,
1173         .write = twl6040_write,
1174         .set_bias_level = twl6040_set_bias_level,
1175         .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1176         .reg_word_size = sizeof(u8),
1177         .reg_cache_default = twl6040_reg,
1178         .ignore_pmdown_time = true,
1179
1180         .controls = twl6040_snd_controls,
1181         .num_controls = ARRAY_SIZE(twl6040_snd_controls),
1182         .dapm_widgets = twl6040_dapm_widgets,
1183         .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
1184         .dapm_routes = intercon,
1185         .num_dapm_routes = ARRAY_SIZE(intercon),
1186 };
1187
1188 static int twl6040_codec_probe(struct platform_device *pdev)
1189 {
1190         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1191                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1192 }
1193
1194 static int twl6040_codec_remove(struct platform_device *pdev)
1195 {
1196         snd_soc_unregister_codec(&pdev->dev);
1197         return 0;
1198 }
1199
1200 static struct platform_driver twl6040_codec_driver = {
1201         .driver = {
1202                 .name = "twl6040-codec",
1203                 .owner = THIS_MODULE,
1204         },
1205         .probe = twl6040_codec_probe,
1206         .remove = twl6040_codec_remove,
1207 };
1208
1209 module_platform_driver(twl6040_codec_driver);
1210
1211 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1212 MODULE_AUTHOR("Misael Lopez Cruz");
1213 MODULE_LICENSE("GPL");