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         u16 hs_left_step;
  73         u16 hs_right_step;
  74         u16 hf_left_step;
  75         u16 hf_right_step;
  76         struct twl6040_jack_data hs_jack;
  77         struct snd_soc_codec *codec;
  78         struct workqueue_struct *workqueue;
  79         struct mutex mutex;
  80 };
  81
  82 /*
  83  * twl6040 register cache & default register settings
  84  */
  85 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
  86         0x00, /* not used       0x00    */
  87         0x4B, /* REG_ASICID     0x01 (ro) */
  88         0x00, /* REG_ASICREV    0x02 (ro) */
  89         0x00, /* REG_INTID      0x03    */
  90         0x00, /* REG_INTMR      0x04    */
  91         0x00, /* REG_NCPCTRL    0x05    */
  92         0x00, /* REG_LDOCTL     0x06    */
  93         0x60, /* REG_HPPLLCTL   0x07    */
  94         0x00, /* REG_LPPLLCTL   0x08    */
  95         0x4A, /* REG_LPPLLDIV   0x09    */
  96         0x00, /* REG_AMICBCTL   0x0A    */
  97         0x00, /* REG_DMICBCTL   0x0B    */
  98         0x00, /* REG_MICLCTL    0x0C    */
  99         0x00, /* REG_MICRCTL    0x0D    */
 100         0x00, /* REG_MICGAIN    0x0E    */
 101         0x1B, /* REG_LINEGAIN   0x0F    */
 102         0x00, /* REG_HSLCTL     0x10    */
 103         0x00, /* REG_HSRCTL     0x11    */
 104         0x00, /* REG_HSGAIN     0x12    */
 105         0x00, /* REG_EARCTL     0x13    */
 106         0x00, /* REG_HFLCTL     0x14    */
 107         0x00, /* REG_HFLGAIN    0x15    */
 108         0x00, /* REG_HFRCTL     0x16    */
 109         0x00, /* REG_HFRGAIN    0x17    */
 110         0x00, /* REG_VIBCTLL    0x18    */
 111         0x00, /* REG_VIBDATL    0x19    */
 112         0x00, /* REG_VIBCTLR    0x1A    */
 113         0x00, /* REG_VIBDATR    0x1B    */
 114         0x00, /* REG_HKCTL1     0x1C    */
 115         0x00, /* REG_HKCTL2     0x1D    */
 116         0x00, /* REG_GPOCTL     0x1E    */
 117         0x00, /* REG_ALB        0x1F    */
 118         0x00, /* REG_DLB        0x20    */
 119         0x00, /* not used       0x21    */
 120         0x00, /* not used       0x22    */
 121         0x00, /* not used       0x23    */
 122         0x00, /* not used       0x24    */
 123         0x00, /* not used       0x25    */
 124         0x00, /* not used       0x26    */
 125         0x00, /* not used       0x27    */
 126         0x00, /* REG_TRIM1      0x28    */
 127         0x00, /* REG_TRIM2      0x29    */
 128         0x00, /* REG_TRIM3      0x2A    */
 129         0x00, /* REG_HSOTRIM    0x2B    */
 130         0x00, /* REG_HFOTRIM    0x2C    */
 131         0x09, /* REG_ACCCTL     0x2D    */
 132         0x00, /* REG_STATUS     0x2E (ro) */
 133
 134         0x00, /* REG_SW_SHADOW  0x2F - Shadow, non HW register */
 135 };
 136
 137 /* List of registers to be restored after power up */
 138 static const int twl6040_restore_list[] = {
 139         TWL6040_REG_MICLCTL,
 140         TWL6040_REG_MICRCTL,
 141         TWL6040_REG_MICGAIN,
 142         TWL6040_REG_LINEGAIN,
 143         TWL6040_REG_HSLCTL,
 144         TWL6040_REG_HSRCTL,
 145         TWL6040_REG_HSGAIN,
 146         TWL6040_REG_EARCTL,
 147         TWL6040_REG_HFLCTL,
 148         TWL6040_REG_HFLGAIN,
 149         TWL6040_REG_HFRCTL,
 150         TWL6040_REG_HFRGAIN,
 151 };
 152
 153 /* set of rates for each pll: low-power and high-performance */
 154 static unsigned int lp_rates[] = {
 155         8000,
 156         11250,
 157         16000,
 158         22500,
 159         32000,
 160         44100,
 161         48000,
 162         88200,
 163         96000,
 164 };
 165
 166 static unsigned int hp_rates[] = {
 167         8000,
 168         16000,
 169         32000,
 170         48000,
 171         96000,
 172 };
 173
 174 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 175         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 176         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 177 };
 178
 179 /*
 180  * read twl6040 register cache
 181  */
 182 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
 183                                                 unsigned int reg)
 184 {
 185         u8 *cache = codec->reg_cache;
 186
 187         if (reg >= TWL6040_CACHEREGNUM)
 188                 return -EIO;
 189
 190         return cache[reg];
 191 }
 192
 193 /*
 194  * write twl6040 register cache
 195  */
 196 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
 197                                                 u8 reg, u8 value)
 198 {
 199         u8 *cache = codec->reg_cache;
 200
 201         if (reg >= TWL6040_CACHEREGNUM)
 202                 return;
 203         cache[reg] = value;
 204 }
 205
 206 /*
 207  * read from twl6040 hardware register
 208  */
 209 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
 210                         unsigned int reg)
 211 {
 212         struct twl6040 *twl6040 = codec->control_data;
 213         u8 value;
 214
 215         if (reg >= TWL6040_CACHEREGNUM)
 216                 return -EIO;
 217
 218         if (likely(reg < TWL6040_REG_SW_SHADOW)) {
 219                 value = twl6040_reg_read(twl6040, reg);
 220                 twl6040_write_reg_cache(codec, reg, value);
 221         } else {
 222                 value = twl6040_read_reg_cache(codec, reg);
 223         }
 224
 225         return value;
 226 }
 227
 228 /*
 229  * write to the twl6040 register space
 230  */
 231 static int twl6040_write(struct snd_soc_codec *codec,
 232                         unsigned int reg, unsigned int value)
 233 {
 234         struct twl6040 *twl6040 = codec->control_data;
 235
 236         if (reg >= TWL6040_CACHEREGNUM)
 237                 return -EIO;
 238
 239         twl6040_write_reg_cache(codec, reg, value);
 240         if (likely(reg < TWL6040_REG_SW_SHADOW))
 241                 return twl6040_reg_write(twl6040, reg, value);
 242         else
 243                 return 0;
 244 }
 245
 246 static void twl6040_init_chip(struct snd_soc_codec *codec)
 247 {
 248         struct twl6040 *twl6040 = codec->control_data;
 249         u8 val;
 250
 251         /* Update reg_cache: ASICREV, and TRIM values */
 252         val = twl6040_get_revid(twl6040);
 253         twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 254
 255         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
 256         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
 257         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
 258         twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
 259         twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
 260
 261         /* Change chip defaults */
 262         /* No imput selected for microphone amplifiers */
 263         twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
 264         twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18);
 265
 266         /*
 267          * We need to lower the default gain values, so the ramp code
 268          * can work correctly for the first playback.
 269          * This reduces the pop noise heard at the first playback.
 270          */
 271         twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff);
 272         twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e);
 273         twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d);
 274         twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d);
 275         twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0);
 276 }
 277
 278 static void twl6040_restore_regs(struct snd_soc_codec *codec)
 279 {
 280         u8 *cache = codec->reg_cache;
 281         int reg, i;
 282
 283         for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
 284                 reg = twl6040_restore_list[i];
 285                 twl6040_write(codec, reg, cache[reg]);
 286         }
 287 }
 288
 289 /* set headset dac and driver power mode */
 290 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
 291 {
 292         int hslctl, hsrctl;
 293         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
 294
 295         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 296         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 297
 298         if (high_perf) {
 299                 hslctl &= ~mask;
 300                 hsrctl &= ~mask;
 301         } else {
 302                 hslctl |= mask;
 303                 hsrctl |= mask;
 304         }
 305
 306         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 307         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 308
 309         return 0;
 310 }
 311
 312 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
 313                         struct snd_kcontrol *kcontrol, int event)
 314 {
 315         struct snd_soc_codec *codec = w->codec;
 316         u8 hslctl, hsrctl;
 317
 318         /*
 319          * Workaround for Headset DC offset caused pop noise:
 320          * Both HS DAC need to be turned on (before the HS driver) and off at
 321          * the same time.
 322          */
 323         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 324         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 325         if (SND_SOC_DAPM_EVENT_ON(event)) {
 326                 hslctl |= TWL6040_HSDACENA;
 327                 hsrctl |= TWL6040_HSDACENA;
 328         } else {
 329                 hslctl &= ~TWL6040_HSDACENA;
 330                 hsrctl &= ~TWL6040_HSDACENA;
 331         }
 332         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 333         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 334
 335         msleep(1);
 336         return 0;
 337 }
 338
 339 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
 340                         struct snd_kcontrol *kcontrol, int event)
 341 {
 342         struct snd_soc_codec *codec = w->codec;
 343         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 344         int ret = 0;
 345
 346         if (SND_SOC_DAPM_EVENT_ON(event)) {
 347                 /* Earphone doesn't support low power mode */
 348                 priv->hs_power_mode_locked = 1;
 349                 ret = headset_power_mode(codec, 1);
 350         } else {
 351                 priv->hs_power_mode_locked = 0;
 352                 ret = headset_power_mode(codec, priv->hs_power_mode);
 353         }
 354
 355         msleep(1);
 356
 357         return ret;
 358 }
 359
 360 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
 361                                    struct snd_soc_jack *jack, int report)
 362 {
 363         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 364         int status;
 365
 366         mutex_lock(&priv->mutex);
 367
 368         /* Sync status */
 369         status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
 370         if (status & TWL6040_PLUGCOMP)
 371                 snd_soc_jack_report(jack, report, report);
 372         else
 373                 snd_soc_jack_report(jack, 0, report);
 374
 375         mutex_unlock(&priv->mutex);
 376 }
 377
 378 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
 379                                 struct snd_soc_jack *jack, int report)
 380 {
 381         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 382         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 383
 384         hs_jack->jack = jack;
 385         hs_jack->report = report;
 386
 387         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 388 }
 389 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
 390
 391 static void twl6040_accessory_work(struct work_struct *work)
 392 {
 393         struct twl6040_data *priv = container_of(work,
 394                                         struct twl6040_data, hs_jack.work.work);
 395         struct snd_soc_codec *codec = priv->codec;
 396         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 397
 398         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 399 }
 400
 401 /* audio interrupt handler */
 402 static irqreturn_t twl6040_audio_handler(int irq, void *data)
 403 {
 404         struct snd_soc_codec *codec = data;
 405         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 406
 407         queue_delayed_work(priv->workqueue, &priv->hs_jack.work,
 408                            msecs_to_jiffies(200));
 409
 410         return IRQ_HANDLED;
 411 }
 412
 413 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
 414         struct snd_ctl_elem_value *ucontrol)
 415 {
 416         struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
 417         struct snd_soc_dapm_widget *widget = wlist->widgets[0];
 418         struct snd_soc_codec *codec = widget->codec;
 419         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 420         unsigned int val;
 421
 422         /* Do not allow changes while Input/FF efect is running */
 423         val = twl6040_read_reg_volatile(codec, e->reg);
 424         if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
 425                 return -EBUSY;
 426
 427         return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 428 }
 429
 430 /*
 431  * MICATT volume control:
 432  * from -6 to 0 dB in 6 dB steps
 433  */
 434 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 435
 436 /*
 437  * MICGAIN volume control:
 438  * from 6 to 30 dB in 6 dB steps
 439  */
 440 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
 441
 442 /*
 443  * AFMGAIN volume control:
 444  * from -18 to 24 dB in 6 dB steps
 445  */
 446 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
 447
 448 /*
 449  * HSGAIN volume control:
 450  * from -30 to 0 dB in 2 dB steps
 451  */
 452 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
 453
 454 /*
 455  * HFGAIN volume control:
 456  * from -52 to 6 dB in 2 dB steps
 457  */
 458 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
 459
 460 /*
 461  * EPGAIN volume control:
 462  * from -24 to 6 dB in 2 dB steps
 463  */
 464 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
 465
 466 /* Left analog microphone selection */
 467 static const char *twl6040_amicl_texts[] =
 468         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
 469
 470 /* Right analog microphone selection */
 471 static const char *twl6040_amicr_texts[] =
 472         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
 473
 474 static const struct soc_enum twl6040_enum[] = {
 475         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
 476         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
 477 };
 478
 479 static const char *twl6040_hs_texts[] = {
 480         "Off", "HS DAC", "Line-In amp"
 481 };
 482
 483 static const struct soc_enum twl6040_hs_enum[] = {
 484         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 485                         twl6040_hs_texts),
 486         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 487                         twl6040_hs_texts),
 488 };
 489
 490 static const char *twl6040_hf_texts[] = {
 491         "Off", "HF DAC", "Line-In amp"
 492 };
 493
 494 static const struct soc_enum twl6040_hf_enum[] = {
 495         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 496                         twl6040_hf_texts),
 497         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 498                         twl6040_hf_texts),
 499 };
 500
 501 static const char *twl6040_vibrapath_texts[] = {
 502         "Input FF", "Audio PDM"
 503 };
 504
 505 static const struct soc_enum twl6040_vibra_enum[] = {
 506         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
 507                         ARRAY_SIZE(twl6040_vibrapath_texts),
 508                         twl6040_vibrapath_texts),
 509         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
 510                         ARRAY_SIZE(twl6040_vibrapath_texts),
 511                         twl6040_vibrapath_texts),
 512 };
 513
 514 static const struct snd_kcontrol_new amicl_control =
 515         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
 516
 517 static const struct snd_kcontrol_new amicr_control =
 518         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
 519
 520 /* Headset DAC playback switches */
 521 static const struct snd_kcontrol_new hsl_mux_controls =
 522         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
 523
 524 static const struct snd_kcontrol_new hsr_mux_controls =
 525         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
 526
 527 /* Handsfree DAC playback switches */
 528 static const struct snd_kcontrol_new hfl_mux_controls =
 529         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
 530
 531 static const struct snd_kcontrol_new hfr_mux_controls =
 532         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 533
 534 static const struct snd_kcontrol_new ep_path_enable_control =
 535         SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
 536
 537 static const struct snd_kcontrol_new auxl_switch_control =
 538         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
 539
 540 static const struct snd_kcontrol_new auxr_switch_control =
 541         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
 542
 543 /* Vibra playback switches */
 544 static const struct snd_kcontrol_new vibral_mux_controls =
 545         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
 546                 snd_soc_dapm_get_enum_double,
 547                 twl6040_soc_dapm_put_vibra_enum);
 548
 549 static const struct snd_kcontrol_new vibrar_mux_controls =
 550         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
 551                 snd_soc_dapm_get_enum_double,
 552                 twl6040_soc_dapm_put_vibra_enum);
 553
 554 /* Headset power mode */
 555 static const char *twl6040_power_mode_texts[] = {
 556         "Low-Power", "High-Performance",
 557 };
 558
 559 static const struct soc_enum twl6040_power_mode_enum =
 560         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
 561                         twl6040_power_mode_texts);
 562
 563 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
 564         struct snd_ctl_elem_value *ucontrol)
 565 {
 566         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 567         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 568
 569         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
 570
 571         return 0;
 572 }
 573
 574 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
 575         struct snd_ctl_elem_value *ucontrol)
 576 {
 577         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 578         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 579         int high_perf = ucontrol->value.enumerated.item[0];
 580         int ret = 0;
 581
 582         if (!priv->hs_power_mode_locked)
 583                 ret = headset_power_mode(codec, high_perf);
 584
 585         if (!ret)
 586                 priv->hs_power_mode = high_perf;
 587
 588         return ret;
 589 }
 590
 591 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
 592         struct snd_ctl_elem_value *ucontrol)
 593 {
 594         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 595         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 596
 597         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
 598
 599         return 0;
 600 }
 601
 602 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
 603         struct snd_ctl_elem_value *ucontrol)
 604 {
 605         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 606         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 607
 608         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
 609
 610         return 0;
 611 }
 612
 613 int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
 614 {
 615         struct snd_soc_dapm_context *dapm = &codec->dapm;
 616
 617         if (snd_soc_dapm_get_pin_status(dapm, "EP"))
 618                 return -1; /* -1dB */
 619
 620         if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
 621                 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
 622
 623                 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL);
 624                 if (val & TWL6040_HSDACMODE)
 625                         /* HSDACL in LP mode */
 626                         return -8; /* -8dB */
 627                 else
 628                         /* HSDACL in HP mode */
 629                         return -1; /* -1dB */
 630         }
 631         return 0; /* 0dB */
 632 }
 633 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
 634
 635 int twl6040_get_clk_id(struct snd_soc_codec *codec)
 636 {
 637         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 638
 639         return priv->pll_power_mode;
 640 }
 641 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
 642
 643 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
 644 {
 645         if (unlikely(trim >= TWL6040_TRIM_INVAL))
 646                 return -EINVAL;
 647
 648         return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim);
 649 }
 650 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
 651
 652 int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
 653 {
 654         struct twl6040 *twl6040 = codec->control_data;
 655
 656         if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
 657                 /* For ES under ES_1.3 HS step is 2 mV */
 658                 return 2;
 659         else
 660                 /* For ES_1.3 HS step is 1 mV */
 661                 return 1;
 662 }
 663 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
 664
 665 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
 666         /* Capture gains */
 667         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
 668                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
 669         SOC_DOUBLE_TLV("Capture Volume",
 670                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
 671
 672         /* AFM gains */
 673         SOC_DOUBLE_TLV("Aux FM Volume",
 674                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
 675
 676         /* Playback gains */
 677         SOC_DOUBLE_TLV("Headset Playback Volume",
 678                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
 679         SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
 680                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
 681         SOC_SINGLE_TLV("Earphone Playback Volume",
 682                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
 683
 684         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
 685                 twl6040_headset_power_get_enum,
 686                 twl6040_headset_power_put_enum),
 687
 688         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
 689                 twl6040_pll_get_enum, twl6040_pll_put_enum),
 690 };
 691
 692 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
 693         /* Inputs */
 694         SND_SOC_DAPM_INPUT("MAINMIC"),
 695         SND_SOC_DAPM_INPUT("HSMIC"),
 696         SND_SOC_DAPM_INPUT("SUBMIC"),
 697         SND_SOC_DAPM_INPUT("AFML"),
 698         SND_SOC_DAPM_INPUT("AFMR"),
 699
 700         /* Outputs */
 701         SND_SOC_DAPM_OUTPUT("HSOL"),
 702         SND_SOC_DAPM_OUTPUT("HSOR"),
 703         SND_SOC_DAPM_OUTPUT("HFL"),
 704         SND_SOC_DAPM_OUTPUT("HFR"),
 705         SND_SOC_DAPM_OUTPUT("EP"),
 706         SND_SOC_DAPM_OUTPUT("AUXL"),
 707         SND_SOC_DAPM_OUTPUT("AUXR"),
 708         SND_SOC_DAPM_OUTPUT("VIBRAL"),
 709         SND_SOC_DAPM_OUTPUT("VIBRAR"),
 710
 711         /* Analog input muxes for the capture amplifiers */
 712         SND_SOC_DAPM_MUX("Analog Left Capture Route",
 713                         SND_SOC_NOPM, 0, 0, &amicl_control),
 714         SND_SOC_DAPM_MUX("Analog Right Capture Route",
 715                         SND_SOC_NOPM, 0, 0, &amicr_control),
 716
 717         /* Analog capture PGAs */
 718         SND_SOC_DAPM_PGA("MicAmpL",
 719                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
 720         SND_SOC_DAPM_PGA("MicAmpR",
 721                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
 722
 723         /* Auxiliary FM PGAs */
 724         SND_SOC_DAPM_PGA("AFMAmpL",
 725                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
 726         SND_SOC_DAPM_PGA("AFMAmpR",
 727                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
 728
 729         /* ADCs */
 730         SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
 731                         TWL6040_REG_MICLCTL, 2, 0),
 732         SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
 733                         TWL6040_REG_MICRCTL, 2, 0),
 734
 735         /* Microphone bias */
 736         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
 737                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
 738         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
 739                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
 740         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
 741                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
 742         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
 743                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
 744
 745         /* DACs */
 746         SND_SOC_DAPM_DAC("HSDAC Left", "Headset Playback", SND_SOC_NOPM, 0, 0),
 747         SND_SOC_DAPM_DAC("HSDAC Right", "Headset Playback", SND_SOC_NOPM, 0, 0),
 748         SND_SOC_DAPM_DAC("HFDAC Left", "Handsfree Playback",
 749                          TWL6040_REG_HFLCTL, 0, 0),
 750         SND_SOC_DAPM_DAC("HFDAC Right", "Handsfree Playback",
 751                          TWL6040_REG_HFRCTL, 0, 0),
 752         /* Virtual DAC for vibra path (DL4 channel) */
 753         SND_SOC_DAPM_DAC("VIBRA DAC", "Vibra Playback",
 754                         SND_SOC_NOPM, 0, 0),
 755
 756         SND_SOC_DAPM_MUX("Handsfree Left Playback",
 757                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
 758         SND_SOC_DAPM_MUX("Handsfree Right Playback",
 759                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
 760         /* Analog playback Muxes */
 761         SND_SOC_DAPM_MUX("Headset Left Playback",
 762                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
 763         SND_SOC_DAPM_MUX("Headset Right Playback",
 764                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
 765
 766         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
 767                         &vibral_mux_controls),
 768         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
 769                         &vibrar_mux_controls),
 770
 771         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
 772                         &ep_path_enable_control),
 773         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
 774                         &auxl_switch_control),
 775         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
 776                         &auxr_switch_control),
 777
 778         /* Analog playback drivers */
 779         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
 780                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
 781         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
 782                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
 783         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
 784                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
 785         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
 786                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
 787         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
 788                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
 789                         twl6040_ep_drv_event,
 790                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 791         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
 792                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
 793         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
 794                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
 795
 796         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
 797                             NULL, 0),
 798         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
 799                             NULL, 0),
 800         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
 801                               twl6040_hs_dac_event,
 802                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 803
 804         /* Analog playback PGAs */
 805         SND_SOC_DAPM_PGA("HF Left PGA",
 806                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
 807         SND_SOC_DAPM_PGA("HF Right PGA",
 808                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
 809
 810 };
 811
 812 static const struct snd_soc_dapm_route intercon[] = {
 813         /* Capture path */
 814         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
 815         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
 816         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
 817
 818         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
 819         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
 820         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
 821
 822         {"MicAmpL", NULL, "Analog Left Capture Route"},
 823         {"MicAmpR", NULL, "Analog Right Capture Route"},
 824
 825         {"ADC Left", NULL, "MicAmpL"},
 826         {"ADC Right", NULL, "MicAmpR"},
 827
 828         /* AFM path */
 829         {"AFMAmpL", NULL, "AFML"},
 830         {"AFMAmpR", NULL, "AFMR"},
 831
 832         {"HSDAC Left", NULL, "HSDAC Power"},
 833         {"HSDAC Right", NULL, "HSDAC Power"},
 834
 835         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
 836         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
 837
 838         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
 839         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
 840
 841         {"HS Left Driver", NULL, "Headset Left Playback"},
 842         {"HS Right Driver", NULL, "Headset Right Playback"},
 843
 844         {"HSOL", NULL, "HS Left Driver"},
 845         {"HSOR", NULL, "HS Right Driver"},
 846
 847         /* Earphone playback path */
 848         {"Earphone Playback", "Switch", "HSDAC Left"},
 849         {"Earphone Driver", NULL, "Earphone Playback"},
 850         {"EP", NULL, "Earphone Driver"},
 851
 852         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
 853         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
 854
 855         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
 856         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
 857
 858         {"HF Left PGA", NULL, "Handsfree Left Playback"},
 859         {"HF Right PGA", NULL, "Handsfree Right Playback"},
 860
 861         {"HF Left Driver", NULL, "HF Left PGA"},
 862         {"HF Right Driver", NULL, "HF Right PGA"},
 863
 864         {"HFL", NULL, "HF Left Driver"},
 865         {"HFR", NULL, "HF Right Driver"},
 866
 867         {"AUXL Playback", "Switch", "HF Left PGA"},
 868         {"AUXR Playback", "Switch", "HF Right PGA"},
 869
 870         {"AUXL", NULL, "AUXL Playback"},
 871         {"AUXR", NULL, "AUXR Playback"},
 872
 873         /* Vibrator paths */
 874         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
 875         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
 876
 877         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
 878         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
 879         {"Vibra Left Driver", NULL, "Vibra Left Control"},
 880         {"Vibra Right Driver", NULL, "Vibra Right Control"},
 881
 882         {"VIBRAL", NULL, "Vibra Left Driver"},
 883         {"VIBRAR", NULL, "Vibra Right Driver"},
 884 };
 885
 886 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
 887                                 enum snd_soc_bias_level level)
 888 {
 889         struct twl6040 *twl6040 = codec->control_data;
 890         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 891         int ret;
 892
 893         switch (level) {
 894         case SND_SOC_BIAS_ON:
 895                 break;
 896         case SND_SOC_BIAS_PREPARE:
 897                 break;
 898         case SND_SOC_BIAS_STANDBY:
 899                 if (priv->codec_powered)
 900                         break;
 901
 902                 ret = twl6040_power(twl6040, 1);
 903                 if (ret)
 904                         return ret;
 905
 906                 priv->codec_powered = 1;
 907
 908                 twl6040_restore_regs(codec);
 909
 910                 /* Set external boost GPO */
 911                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
 912                 break;
 913         case SND_SOC_BIAS_OFF:
 914                 if (!priv->codec_powered)
 915                         break;
 916
 917                 twl6040_power(twl6040, 0);
 918                 priv->codec_powered = 0;
 919                 break;
 920         }
 921
 922         codec->dapm.bias_level = level;
 923
 924         return 0;
 925 }
 926
 927 static int twl6040_startup(struct snd_pcm_substream *substream,
 928                         struct snd_soc_dai *dai)
 929 {
 930         struct snd_soc_codec *codec = dai->codec;
 931         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 932
 933         snd_pcm_hw_constraint_list(substream->runtime, 0,
 934                                 SNDRV_PCM_HW_PARAM_RATE,
 935                                 &sysclk_constraints[priv->pll_power_mode]);
 936
 937         return 0;
 938 }
 939
 940 static int twl6040_hw_params(struct snd_pcm_substream *substream,
 941                         struct snd_pcm_hw_params *params,
 942                         struct snd_soc_dai *dai)
 943 {
 944         struct snd_soc_codec *codec = dai->codec;
 945         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 946         int rate;
 947
 948         rate = params_rate(params);
 949         switch (rate) {
 950         case 11250:
 951         case 22500:
 952         case 44100:
 953         case 88200:
 954                 /* These rates are not supported when HPPLL is in use */
 955                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
 956                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
 957                                 rate);
 958                         return -EINVAL;
 959                 }
 960                 priv->sysclk = 17640000;
 961                 break;
 962         case 8000:
 963         case 16000:
 964         case 32000:
 965         case 48000:
 966         case 96000:
 967                 priv->sysclk = 19200000;
 968                 break;
 969         default:
 970                 dev_err(codec->dev, "unsupported rate %d\n", rate);
 971                 return -EINVAL;
 972         }
 973
 974         return 0;
 975 }
 976
 977 static int twl6040_prepare(struct snd_pcm_substream *substream,
 978                         struct snd_soc_dai *dai)
 979 {
 980         struct snd_soc_codec *codec = dai->codec;
 981         struct twl6040 *twl6040 = codec->control_data;
 982         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 983         int ret;
 984
 985         if (!priv->sysclk) {
 986                 dev_err(codec->dev,
 987                         "no mclk configured, call set_sysclk() on init\n");
 988                 return -EINVAL;
 989         }
 990
 991         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
 992         if (ret) {
 993                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
 994                 return -EPERM;
 995         }
 996
 997         return 0;
 998 }
 999
1000 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1001                 int clk_id, unsigned int freq, int dir)
1002 {
1003         struct snd_soc_codec *codec = codec_dai->codec;
1004         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1005
1006         switch (clk_id) {
1007         case TWL6040_SYSCLK_SEL_LPPLL:
1008         case TWL6040_SYSCLK_SEL_HPPLL:
1009                 priv->pll = clk_id;
1010                 priv->clk_in = freq;
1011                 break;
1012         default:
1013                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1014                 return -EINVAL;
1015         }
1016
1017         return 0;
1018 }
1019
1020 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1021         .startup        = twl6040_startup,
1022         .hw_params      = twl6040_hw_params,
1023         .prepare        = twl6040_prepare,
1024         .set_sysclk     = twl6040_set_dai_sysclk,
1025 };
1026
1027 static struct snd_soc_dai_driver twl6040_dai[] = {
1028 {
1029         .name = "twl6040-legacy",
1030         .playback = {
1031                 .stream_name = "Playback",
1032                 .channels_min = 1,
1033                 .channels_max = 5,
1034                 .rates = TWL6040_RATES,
1035                 .formats = TWL6040_FORMATS,
1036         },
1037         .capture = {
1038                 .stream_name = "Capture",
1039                 .channels_min = 1,
1040                 .channels_max = 2,
1041                 .rates = TWL6040_RATES,
1042                 .formats = TWL6040_FORMATS,
1043         },
1044         .ops = &twl6040_dai_ops,
1045 },
1046 {
1047         .name = "twl6040-ul",
1048         .capture = {
1049                 .stream_name = "Capture",
1050                 .channels_min = 1,
1051                 .channels_max = 2,
1052                 .rates = TWL6040_RATES,
1053                 .formats = TWL6040_FORMATS,
1054         },
1055         .ops = &twl6040_dai_ops,
1056 },
1057 {
1058         .name = "twl6040-dl1",
1059         .playback = {
1060                 .stream_name = "Headset Playback",
1061                 .channels_min = 1,
1062                 .channels_max = 2,
1063                 .rates = TWL6040_RATES,
1064                 .formats = TWL6040_FORMATS,
1065         },
1066         .ops = &twl6040_dai_ops,
1067 },
1068 {
1069         .name = "twl6040-dl2",
1070         .playback = {
1071                 .stream_name = "Handsfree Playback",
1072                 .channels_min = 1,
1073                 .channels_max = 2,
1074                 .rates = TWL6040_RATES,
1075                 .formats = TWL6040_FORMATS,
1076         },
1077         .ops = &twl6040_dai_ops,
1078 },
1079 {
1080         .name = "twl6040-vib",
1081         .playback = {
1082                 .stream_name = "Vibra Playback",
1083                 .channels_min = 1,
1084                 .channels_max = 1,
1085                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1086                 .formats = TWL6040_FORMATS,
1087         },
1088         .ops = &twl6040_dai_ops,
1089 },
1090 };
1091
1092 #ifdef CONFIG_PM
1093 static int twl6040_suspend(struct snd_soc_codec *codec)
1094 {
1095         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1096
1097         return 0;
1098 }
1099
1100 static int twl6040_resume(struct snd_soc_codec *codec)
1101 {
1102         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1103         twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1104
1105         return 0;
1106 }
1107 #else
1108 #define twl6040_suspend NULL
1109 #define twl6040_resume NULL
1110 #endif
1111
1112 static int twl6040_probe(struct snd_soc_codec *codec)
1113 {
1114         struct twl6040_data *priv;
1115         struct twl6040_codec_data *pdata = dev_get_platdata(codec->dev);
1116         struct platform_device *pdev = container_of(codec->dev,
1117                                                    struct platform_device, dev);
1118         int ret = 0;
1119
1120         priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1121         if (priv == NULL)
1122                 return -ENOMEM;
1123         snd_soc_codec_set_drvdata(codec, priv);
1124
1125         priv->codec = codec;
1126         codec->control_data = dev_get_drvdata(codec->dev->parent);
1127
1128         if (pdata && pdata->hs_left_step && pdata->hs_right_step) {
1129                 priv->hs_left_step = pdata->hs_left_step;
1130                 priv->hs_right_step = pdata->hs_right_step;
1131         } else {
1132                 priv->hs_left_step = 1;
1133                 priv->hs_right_step = 1;
1134         }
1135
1136         if (pdata && pdata->hf_left_step && pdata->hf_right_step) {
1137                 priv->hf_left_step = pdata->hf_left_step;
1138                 priv->hf_right_step = pdata->hf_right_step;
1139         } else {
1140                 priv->hf_left_step = 1;
1141                 priv->hf_right_step = 1;
1142         }
1143
1144         priv->plug_irq = platform_get_irq(pdev, 0);
1145         if (priv->plug_irq < 0) {
1146                 dev_err(codec->dev, "invalid irq\n");
1147                 ret = -EINVAL;
1148                 goto work_err;
1149         }
1150
1151         priv->workqueue = alloc_workqueue("twl6040-codec", 0, 0);
1152         if (!priv->workqueue) {
1153                 ret = -ENOMEM;
1154                 goto work_err;
1155         }
1156
1157         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1158
1159         mutex_init(&priv->mutex);
1160
1161         ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler,
1162                                    0, "twl6040_irq_plug", codec);
1163         if (ret) {
1164                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1165                 goto plugirq_err;
1166         }
1167
1168         twl6040_init_chip(codec);
1169
1170         /* power on device */
1171         ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1172         if (!ret)
1173                 return 0;
1174
1175         /* Error path */
1176         free_irq(priv->plug_irq, codec);
1177 plugirq_err:
1178         destroy_workqueue(priv->workqueue);
1179 work_err:
1180         kfree(priv);
1181         return ret;
1182 }
1183
1184 static int twl6040_remove(struct snd_soc_codec *codec)
1185 {
1186         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1187
1188         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1189         free_irq(priv->plug_irq, codec);
1190         destroy_workqueue(priv->workqueue);
1191         kfree(priv);
1192
1193         return 0;
1194 }
1195
1196 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1197         .probe = twl6040_probe,
1198         .remove = twl6040_remove,
1199         .suspend = twl6040_suspend,
1200         .resume = twl6040_resume,
1201         .read = twl6040_read_reg_cache,
1202         .write = twl6040_write,
1203         .set_bias_level = twl6040_set_bias_level,
1204         .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1205         .reg_word_size = sizeof(u8),
1206         .reg_cache_default = twl6040_reg,
1207         .ignore_pmdown_time = true,
1208
1209         .controls = twl6040_snd_controls,
1210         .num_controls = ARRAY_SIZE(twl6040_snd_controls),
1211         .dapm_widgets = twl6040_dapm_widgets,
1212         .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
1213         .dapm_routes = intercon,
1214         .num_dapm_routes = ARRAY_SIZE(intercon),
1215 };
1216
1217 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1218 {
1219         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1220                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1221 }
1222
1223 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1224 {
1225         snd_soc_unregister_codec(&pdev->dev);
1226         return 0;
1227 }
1228
1229 static struct platform_driver twl6040_codec_driver = {
1230         .driver = {
1231                 .name = "twl6040-codec",
1232                 .owner = THIS_MODULE,
1233         },
1234         .probe = twl6040_codec_probe,
1235         .remove = __devexit_p(twl6040_codec_remove),
1236 };
1237
1238 module_platform_driver(twl6040_codec_driver);
1239
1240 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1241 MODULE_AUTHOR("Misael Lopez Cruz");
1242 MODULE_LICENSE("GPL");