sound/soc/codecs/da7219-aad.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
   4  *
   5  * Copyright (c) 2015 Dialog Semiconductor Ltd.
   6  *
   7  * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/platform_device.h>
  12 #include <linux/clk.h>
  13 #include <linux/i2c.h>
  14 #include <linux/property.h>
  15 #include <linux/pm_wakeirq.h>
  16 #include <linux/slab.h>
  17 #include <linux/delay.h>
  18 #include <linux/workqueue.h>
  19 #include <sound/soc.h>
  20 #include <sound/jack.h>
  21 #include <sound/da7219.h>
  22
  23 #include "da7219.h"
  24 #include "da7219-aad.h"
  25
  26
  27 /*
  28  * Detection control
  29  */
  30
  31 void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack)
  32 {
  33         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
  34
  35         da7219->aad->jack = jack;
  36         da7219->aad->jack_inserted = false;
  37
  38         /* Send an initial empty report */
  39         snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
  40
  41         /* Enable/Disable jack detection */
  42         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
  43                             DA7219_ACCDET_EN_MASK,
  44                             (jack ? DA7219_ACCDET_EN_MASK : 0));
  45 }
  46 EXPORT_SYMBOL_GPL(da7219_aad_jack_det);
  47
  48 /*
  49  * Button/HPTest work
  50  */
  51
  52 static void da7219_aad_btn_det_work(struct work_struct *work)
  53 {
  54         struct da7219_aad_priv *da7219_aad =
  55                 container_of(work, struct da7219_aad_priv, btn_det_work);
  56         struct snd_soc_component *component = da7219_aad->component;
  57         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
  58         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
  59         u8 statusa, micbias_ctrl;
  60         bool micbias_up = false;
  61         int retries = 0;
  62
  63         /* Drive headphones/lineout */
  64         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
  65                             DA7219_HP_L_AMP_OE_MASK,
  66                             DA7219_HP_L_AMP_OE_MASK);
  67         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
  68                             DA7219_HP_R_AMP_OE_MASK,
  69                             DA7219_HP_R_AMP_OE_MASK);
  70
  71         /* Make sure mic bias is up */
  72         snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
  73         snd_soc_dapm_sync(dapm);
  74
  75         do {
  76                 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
  77                 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
  78                         micbias_up = true;
  79                 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
  80                         msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
  81         } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
  82
  83         if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
  84                 dev_warn(component->dev, "Mic bias status check timed out");
  85
  86         da7219->micbias_on_event = true;
  87
  88         /*
  89          * Mic bias pulse required to enable mic, must be done before enabling
  90          * button detection to prevent erroneous button readings.
  91          */
  92         if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
  93                 /* Pulse higher level voltage */
  94                 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
  95                 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL,
  96                                     DA7219_MICBIAS1_LEVEL_MASK,
  97                                     da7219_aad->micbias_pulse_lvl);
  98                 msleep(da7219_aad->micbias_pulse_time);
  99                 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl);
 100
 101         }
 102
 103         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 104                             DA7219_BUTTON_CONFIG_MASK,
 105                             da7219_aad->btn_cfg);
 106 }
 107
 108 static void da7219_aad_hptest_work(struct work_struct *work)
 109 {
 110         struct da7219_aad_priv *da7219_aad =
 111                 container_of(work, struct da7219_aad_priv, hptest_work);
 112         struct snd_soc_component *component = da7219_aad->component;
 113         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 114         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 115
 116         __le16 tonegen_freq_hptest;
 117         u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
 118         int report = 0, ret = 0;
 119
 120         /* Lock DAPM, Kcontrols affected by this test and the PLL */
 121         snd_soc_dapm_mutex_lock(dapm);
 122         mutex_lock(&da7219->ctrl_lock);
 123         mutex_lock(&da7219->pll_lock);
 124
 125         /* Ensure MCLK is available for HP test procedure */
 126         if (da7219->mclk) {
 127                 ret = clk_prepare_enable(da7219->mclk);
 128                 if (ret) {
 129                         dev_err(component->dev, "Failed to enable mclk - %d\n", ret);
 130                         mutex_unlock(&da7219->pll_lock);
 131                         mutex_unlock(&da7219->ctrl_lock);
 132                         snd_soc_dapm_mutex_unlock(dapm);
 133                         return;
 134                 }
 135         }
 136
 137         /*
 138          * If MCLK not present, then we're using the internal oscillator and
 139          * require different frequency settings to achieve the same result.
 140          *
 141          * If MCLK is present, but PLL is not enabled then we enable it here to
 142          * ensure a consistent detection procedure.
 143          */
 144         pll_srm_sts = snd_soc_component_read(component, DA7219_PLL_SRM_STS);
 145         if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
 146                 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
 147
 148                 pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL);
 149                 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
 150                         da7219_set_pll(component, DA7219_SYSCLK_PLL,
 151                                        DA7219_PLL_FREQ_OUT_98304);
 152         } else {
 153                 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
 154         }
 155
 156         /* Ensure gain ramping at fastest rate */
 157         gain_ramp_ctrl = snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL);
 158         snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
 159
 160         /* Bypass cache so it saves current settings */
 161         regcache_cache_bypass(da7219->regmap, true);
 162
 163         /* Make sure Tone Generator is disabled */
 164         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
 165
 166         /* Enable HPTest block, 1KOhms check */
 167         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
 168                             DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
 169                             DA7219_HPTEST_EN_MASK |
 170                             DA7219_HPTEST_RES_SEL_1KOHMS);
 171
 172         /* Set gains to 0db */
 173         snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 174         snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 175         snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
 176         snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
 177
 178         /* Disable DAC filters, EQs and soft mute */
 179         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
 180                             0);
 181         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
 182                             0);
 183         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5,
 184                             DA7219_DAC_SOFTMUTE_EN_MASK, 0);
 185
 186         /* Enable HP left & right paths */
 187         snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
 188                             DA7219_CP_EN_MASK);
 189         snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC,
 190                             DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
 191                             DA7219_DAC_L_SRC_TONEGEN |
 192                             DA7219_DAC_R_SRC_TONEGEN);
 193         snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL,
 194                             DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
 195                             DA7219_DAC_L_EN_MASK);
 196         snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL,
 197                             DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
 198                             DA7219_DAC_R_EN_MASK);
 199         snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT,
 200                             DA7219_MIXOUT_L_MIX_SELECT_MASK,
 201                             DA7219_MIXOUT_L_MIX_SELECT_MASK);
 202         snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT,
 203                             DA7219_MIXOUT_R_MIX_SELECT_MASK,
 204                             DA7219_MIXOUT_R_MIX_SELECT_MASK);
 205         snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L,
 206                             DA7219_OUTFILT_ST_1L_SRC_MASK,
 207                             DA7219_DMIX_ST_SRC_OUTFILT1L);
 208         snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R,
 209                             DA7219_OUTFILT_ST_1R_SRC_MASK,
 210                             DA7219_DMIX_ST_SRC_OUTFILT1R);
 211         snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL,
 212                             DA7219_MIXOUT_L_AMP_EN_MASK,
 213                             DA7219_MIXOUT_L_AMP_EN_MASK);
 214         snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL,
 215                             DA7219_MIXOUT_R_AMP_EN_MASK,
 216                             DA7219_MIXOUT_R_AMP_EN_MASK);
 217         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 218                             DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
 219                             DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
 220         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 221                             DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
 222                             DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
 223         msleep(DA7219_SETTLING_DELAY);
 224         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 225                             DA7219_HP_L_AMP_MUTE_EN_MASK |
 226                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
 227         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 228                             DA7219_HP_R_AMP_MUTE_EN_MASK |
 229                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
 230
 231         /*
 232          * If we're running from the internal oscillator then give audio paths
 233          * time to settle before running test.
 234          */
 235         if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
 236                 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
 237
 238         /* Configure & start Tone Generator */
 239         snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
 240         regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 241                          &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
 242         snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2,
 243                             DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
 244                             DA7219_SWG_SEL_SRAMP |
 245                             DA7219_TONE_GEN_GAIN_MINUS_15DB);
 246         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
 247
 248         msleep(DA7219_AAD_HPTEST_PERIOD);
 249
 250         /* Grab comparator reading */
 251         accdet_cfg8 = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_8);
 252         if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
 253                 report |= SND_JACK_HEADPHONE;
 254         else
 255                 report |= SND_JACK_LINEOUT;
 256
 257         /* Stop tone generator */
 258         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
 259
 260         msleep(DA7219_AAD_HPTEST_PERIOD);
 261
 262         /* Restore original settings from cache */
 263         regcache_mark_dirty(da7219->regmap);
 264         regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
 265                              DA7219_HP_R_CTRL);
 266         msleep(DA7219_SETTLING_DELAY);
 267         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
 268                              DA7219_MIXOUT_R_CTRL);
 269         regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
 270                              DA7219_DROUTING_ST_OUTFILT_1R);
 271         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
 272                              DA7219_MIXOUT_R_SELECT);
 273         regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
 274                              DA7219_DAC_R_CTRL);
 275         regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
 276                              DA7219_DIG_ROUTING_DAC);
 277         regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
 278         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
 279                              DA7219_DAC_FILTERS5);
 280         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
 281                              DA7219_DAC_FILTERS1);
 282         regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
 283                              DA7219_HP_R_GAIN);
 284         regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
 285                              DA7219_DAC_R_GAIN);
 286         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
 287                              DA7219_TONE_GEN_ON_PER);
 288         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 289                              DA7219_TONE_GEN_FREQ1_U);
 290         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
 291                              DA7219_TONE_GEN_CFG2);
 292
 293         regcache_cache_bypass(da7219->regmap, false);
 294
 295         /* Disable HPTest block */
 296         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
 297                             DA7219_HPTEST_EN_MASK, 0);
 298
 299         /*
 300          * If we're running from the internal oscillator then give audio paths
 301          * time to settle before allowing headphones to be driven as required.
 302          */
 303         if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
 304                 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
 305
 306         /* Restore gain ramping rate */
 307         snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
 308
 309         /* Drive Headphones/lineout */
 310         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
 311                             DA7219_HP_L_AMP_OE_MASK);
 312         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
 313                             DA7219_HP_R_AMP_OE_MASK);
 314
 315         /* Restore PLL to previous configuration, if re-configured */
 316         if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
 317             ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
 318                 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
 319
 320         /* Remove MCLK, if previously enabled */
 321         if (da7219->mclk)
 322                 clk_disable_unprepare(da7219->mclk);
 323
 324         mutex_unlock(&da7219->pll_lock);
 325         mutex_unlock(&da7219->ctrl_lock);
 326         snd_soc_dapm_mutex_unlock(dapm);
 327
 328         /*
 329          * Only send report if jack hasn't been removed during process,
 330          * otherwise it's invalid and we drop it.
 331          */
 332         if (da7219_aad->jack_inserted)
 333                 snd_soc_jack_report(da7219_aad->jack, report,
 334                                     SND_JACK_HEADSET | SND_JACK_LINEOUT);
 335 }
 336
 337
 338 /*
 339  * IRQ
 340  */
 341
 342 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
 343 {
 344         struct da7219_aad_priv *da7219_aad = data;
 345         struct snd_soc_component *component = da7219_aad->component;
 346         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 347         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 348         u8 events[DA7219_AAD_IRQ_REG_MAX];
 349         u8 statusa;
 350         int i, report = 0, mask = 0;
 351
 352         /* Read current IRQ events */
 353         regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 354                          events, DA7219_AAD_IRQ_REG_MAX);
 355
 356         if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
 357                 return IRQ_NONE;
 358
 359         /* Read status register for jack insertion & type status */
 360         statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
 361
 362         /* Clear events */
 363         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 364                           events, DA7219_AAD_IRQ_REG_MAX);
 365
 366         dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
 367                 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
 368                 statusa);
 369
 370         if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
 371                 /* Jack Insertion */
 372                 if (events[DA7219_AAD_IRQ_REG_A] &
 373                     DA7219_E_JACK_INSERTED_MASK) {
 374                         report |= SND_JACK_MECHANICAL;
 375                         mask |= SND_JACK_MECHANICAL;
 376                         da7219_aad->jack_inserted = true;
 377                 }
 378
 379                 /* Jack type detection */
 380                 if (events[DA7219_AAD_IRQ_REG_A] &
 381                     DA7219_E_JACK_DETECT_COMPLETE_MASK) {
 382                         /*
 383                          * If 4-pole, then enable button detection, else perform
 384                          * HP impedance test to determine output type to report.
 385                          *
 386                          * We schedule work here as the tasks themselves can
 387                          * take time to complete, and in particular for hptest
 388                          * we want to be able to check if the jack was removed
 389                          * during the procedure as this will invalidate the
 390                          * result. By doing this as work, the IRQ thread can
 391                          * handle a removal, and we can check at the end of
 392                          * hptest if we have a valid result or not.
 393                          */
 394                         if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 395                                 report |= SND_JACK_HEADSET;
 396                                 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
 397                                 schedule_work(&da7219_aad->btn_det_work);
 398                         } else {
 399                                 schedule_work(&da7219_aad->hptest_work);
 400                         }
 401                 }
 402
 403                 /* Button support for 4-pole jack */
 404                 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 405                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 406                                 /* Button Press */
 407                                 if (events[DA7219_AAD_IRQ_REG_B] &
 408                                     (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
 409                                         report |= SND_JACK_BTN_0 >> i;
 410                                         mask |= SND_JACK_BTN_0 >> i;
 411                                 }
 412                         }
 413                         snd_soc_jack_report(da7219_aad->jack, report, mask);
 414
 415                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 416                                 /* Button Release */
 417                                 if (events[DA7219_AAD_IRQ_REG_B] &
 418                                     (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
 419                                         report &= ~(SND_JACK_BTN_0 >> i);
 420                                         mask |= SND_JACK_BTN_0 >> i;
 421                                 }
 422                         }
 423                 }
 424         } else {
 425                 /* Jack removal */
 426                 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
 427                         report = 0;
 428                         mask |= DA7219_AAD_REPORT_ALL_MASK;
 429                         da7219_aad->jack_inserted = false;
 430
 431                         /* Un-drive headphones/lineout */
 432                         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 433                                             DA7219_HP_R_AMP_OE_MASK, 0);
 434                         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 435                                             DA7219_HP_L_AMP_OE_MASK, 0);
 436
 437                         /* Ensure button detection disabled */
 438                         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 439                                             DA7219_BUTTON_CONFIG_MASK, 0);
 440
 441                         da7219->micbias_on_event = false;
 442
 443                         /* Disable mic bias */
 444                         snd_soc_dapm_disable_pin(dapm, "Mic Bias");
 445                         snd_soc_dapm_sync(dapm);
 446
 447                         /* Cancel any pending work */
 448                         cancel_work_sync(&da7219_aad->btn_det_work);
 449                         cancel_work_sync(&da7219_aad->hptest_work);
 450                 }
 451         }
 452
 453         snd_soc_jack_report(da7219_aad->jack, report, mask);
 454
 455         return IRQ_HANDLED;
 456 }
 457
 458 /*
 459  * DT/ACPI to pdata conversion
 460  */
 461
 462 static enum da7219_aad_micbias_pulse_lvl
 463         da7219_aad_fw_micbias_pulse_lvl(struct device *dev, u32 val)
 464 {
 465         switch (val) {
 466         case 2800:
 467                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
 468         case 2900:
 469                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
 470         default:
 471                 dev_warn(dev, "Invalid micbias pulse level");
 472                 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 473         }
 474 }
 475
 476 static enum da7219_aad_btn_cfg
 477         da7219_aad_fw_btn_cfg(struct device *dev, u32 val)
 478 {
 479         switch (val) {
 480         case 2:
 481                 return DA7219_AAD_BTN_CFG_2MS;
 482         case 5:
 483                 return DA7219_AAD_BTN_CFG_5MS;
 484         case 10:
 485                 return DA7219_AAD_BTN_CFG_10MS;
 486         case 50:
 487                 return DA7219_AAD_BTN_CFG_50MS;
 488         case 100:
 489                 return DA7219_AAD_BTN_CFG_100MS;
 490         case 200:
 491                 return DA7219_AAD_BTN_CFG_200MS;
 492         case 500:
 493                 return DA7219_AAD_BTN_CFG_500MS;
 494         default:
 495                 dev_warn(dev, "Invalid button config");
 496                 return DA7219_AAD_BTN_CFG_10MS;
 497         }
 498 }
 499
 500 static enum da7219_aad_mic_det_thr
 501         da7219_aad_fw_mic_det_thr(struct device *dev, u32 val)
 502 {
 503         switch (val) {
 504         case 200:
 505                 return DA7219_AAD_MIC_DET_THR_200_OHMS;
 506         case 500:
 507                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 508         case 750:
 509                 return DA7219_AAD_MIC_DET_THR_750_OHMS;
 510         case 1000:
 511                 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
 512         default:
 513                 dev_warn(dev, "Invalid mic detect threshold");
 514                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 515         }
 516 }
 517
 518 static enum da7219_aad_jack_ins_deb
 519         da7219_aad_fw_jack_ins_deb(struct device *dev, u32 val)
 520 {
 521         switch (val) {
 522         case 5:
 523                 return DA7219_AAD_JACK_INS_DEB_5MS;
 524         case 10:
 525                 return DA7219_AAD_JACK_INS_DEB_10MS;
 526         case 20:
 527                 return DA7219_AAD_JACK_INS_DEB_20MS;
 528         case 50:
 529                 return DA7219_AAD_JACK_INS_DEB_50MS;
 530         case 100:
 531                 return DA7219_AAD_JACK_INS_DEB_100MS;
 532         case 200:
 533                 return DA7219_AAD_JACK_INS_DEB_200MS;
 534         case 500:
 535                 return DA7219_AAD_JACK_INS_DEB_500MS;
 536         case 1000:
 537                 return DA7219_AAD_JACK_INS_DEB_1S;
 538         default:
 539                 dev_warn(dev, "Invalid jack insert debounce");
 540                 return DA7219_AAD_JACK_INS_DEB_20MS;
 541         }
 542 }
 543
 544 static enum da7219_aad_jack_det_rate
 545         da7219_aad_fw_jack_det_rate(struct device *dev, const char *str)
 546 {
 547         if (!strcmp(str, "32ms_64ms")) {
 548                 return DA7219_AAD_JACK_DET_RATE_32_64MS;
 549         } else if (!strcmp(str, "64ms_128ms")) {
 550                 return DA7219_AAD_JACK_DET_RATE_64_128MS;
 551         } else if (!strcmp(str, "128ms_256ms")) {
 552                 return DA7219_AAD_JACK_DET_RATE_128_256MS;
 553         } else if (!strcmp(str, "256ms_512ms")) {
 554                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 555         } else {
 556                 dev_warn(dev, "Invalid jack detect rate");
 557                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 558         }
 559 }
 560
 561 static enum da7219_aad_jack_rem_deb
 562         da7219_aad_fw_jack_rem_deb(struct device *dev, u32 val)
 563 {
 564         switch (val) {
 565         case 1:
 566                 return DA7219_AAD_JACK_REM_DEB_1MS;
 567         case 5:
 568                 return DA7219_AAD_JACK_REM_DEB_5MS;
 569         case 10:
 570                 return DA7219_AAD_JACK_REM_DEB_10MS;
 571         case 20:
 572                 return DA7219_AAD_JACK_REM_DEB_20MS;
 573         default:
 574                 dev_warn(dev, "Invalid jack removal debounce");
 575                 return DA7219_AAD_JACK_REM_DEB_1MS;
 576         }
 577 }
 578
 579 static enum da7219_aad_btn_avg
 580         da7219_aad_fw_btn_avg(struct device *dev, u32 val)
 581 {
 582         switch (val) {
 583         case 1:
 584                 return DA7219_AAD_BTN_AVG_1;
 585         case 2:
 586                 return DA7219_AAD_BTN_AVG_2;
 587         case 4:
 588                 return DA7219_AAD_BTN_AVG_4;
 589         case 8:
 590                 return DA7219_AAD_BTN_AVG_8;
 591         default:
 592                 dev_warn(dev, "Invalid button average value");
 593                 return DA7219_AAD_BTN_AVG_2;
 594         }
 595 }
 596
 597 static enum da7219_aad_adc_1bit_rpt
 598         da7219_aad_fw_adc_1bit_rpt(struct device *dev, u32 val)
 599 {
 600         switch (val) {
 601         case 1:
 602                 return DA7219_AAD_ADC_1BIT_RPT_1;
 603         case 2:
 604                 return DA7219_AAD_ADC_1BIT_RPT_2;
 605         case 4:
 606                 return DA7219_AAD_ADC_1BIT_RPT_4;
 607         case 8:
 608                 return DA7219_AAD_ADC_1BIT_RPT_8;
 609         default:
 610                 dev_warn(dev, "Invalid ADC 1-bit repeat value");
 611                 return DA7219_AAD_ADC_1BIT_RPT_1;
 612         }
 613 }
 614
 615 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
 616 {
 617         struct i2c_client *i2c = to_i2c_client(dev);
 618         struct fwnode_handle *aad_np;
 619         struct da7219_aad_pdata *aad_pdata;
 620         const char *fw_str;
 621         u32 fw_val32;
 622
 623         aad_np = device_get_named_child_node(dev, "da7219_aad");
 624         if (!aad_np)
 625                 return NULL;
 626
 627         aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
 628         if (!aad_pdata)
 629                 return NULL;
 630
 631         aad_pdata->irq = i2c->irq;
 632
 633         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
 634                                      &fw_val32) >= 0)
 635                 aad_pdata->micbias_pulse_lvl =
 636                         da7219_aad_fw_micbias_pulse_lvl(dev, fw_val32);
 637         else
 638                 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 639
 640         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
 641                                      &fw_val32) >= 0)
 642                 aad_pdata->micbias_pulse_time = fw_val32;
 643
 644         if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
 645                 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(dev, fw_val32);
 646         else
 647                 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
 648
 649         if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
 650                 aad_pdata->mic_det_thr =
 651                         da7219_aad_fw_mic_det_thr(dev, fw_val32);
 652         else
 653                 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
 654
 655         if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
 656                 aad_pdata->jack_ins_deb =
 657                         da7219_aad_fw_jack_ins_deb(dev, fw_val32);
 658         else
 659                 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
 660
 661         if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
 662                 aad_pdata->jack_det_rate =
 663                         da7219_aad_fw_jack_det_rate(dev, fw_str);
 664         else
 665                 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
 666
 667         if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
 668                 aad_pdata->jack_rem_deb =
 669                         da7219_aad_fw_jack_rem_deb(dev, fw_val32);
 670         else
 671                 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
 672
 673         if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
 674                 aad_pdata->a_d_btn_thr = (u8) fw_val32;
 675         else
 676                 aad_pdata->a_d_btn_thr = 0xA;
 677
 678         if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
 679                 aad_pdata->d_b_btn_thr = (u8) fw_val32;
 680         else
 681                 aad_pdata->d_b_btn_thr = 0x16;
 682
 683         if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
 684                 aad_pdata->b_c_btn_thr = (u8) fw_val32;
 685         else
 686                 aad_pdata->b_c_btn_thr = 0x21;
 687
 688         if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
 689                 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
 690         else
 691                 aad_pdata->c_mic_btn_thr = 0x3E;
 692
 693         if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
 694                 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(dev, fw_val32);
 695         else
 696                 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
 697
 698         if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
 699                 aad_pdata->adc_1bit_rpt =
 700                         da7219_aad_fw_adc_1bit_rpt(dev, fw_val32);
 701         else
 702                 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
 703
 704         return aad_pdata;
 705 }
 706
 707 static void da7219_aad_handle_pdata(struct snd_soc_component *component)
 708 {
 709         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 710         struct da7219_aad_priv *da7219_aad = da7219->aad;
 711         struct da7219_pdata *pdata = da7219->pdata;
 712
 713         if ((pdata) && (pdata->aad_pdata)) {
 714                 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
 715                 u8 cfg, mask;
 716
 717                 da7219_aad->irq = aad_pdata->irq;
 718
 719                 switch (aad_pdata->micbias_pulse_lvl) {
 720                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
 721                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
 722                         da7219_aad->micbias_pulse_lvl =
 723                                 (aad_pdata->micbias_pulse_lvl <<
 724                                  DA7219_MICBIAS1_LEVEL_SHIFT);
 725                         break;
 726                 default:
 727                         break;
 728                 }
 729
 730                 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
 731
 732                 switch (aad_pdata->btn_cfg) {
 733                 case DA7219_AAD_BTN_CFG_2MS:
 734                 case DA7219_AAD_BTN_CFG_5MS:
 735                 case DA7219_AAD_BTN_CFG_10MS:
 736                 case DA7219_AAD_BTN_CFG_50MS:
 737                 case DA7219_AAD_BTN_CFG_100MS:
 738                 case DA7219_AAD_BTN_CFG_200MS:
 739                 case DA7219_AAD_BTN_CFG_500MS:
 740                         da7219_aad->btn_cfg  = (aad_pdata->btn_cfg <<
 741                                                 DA7219_BUTTON_CONFIG_SHIFT);
 742                 }
 743
 744                 cfg = 0;
 745                 mask = 0;
 746                 switch (aad_pdata->mic_det_thr) {
 747                 case DA7219_AAD_MIC_DET_THR_200_OHMS:
 748                 case DA7219_AAD_MIC_DET_THR_500_OHMS:
 749                 case DA7219_AAD_MIC_DET_THR_750_OHMS:
 750                 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
 751                         cfg |= (aad_pdata->mic_det_thr <<
 752                                 DA7219_MIC_DET_THRESH_SHIFT);
 753                         mask |= DA7219_MIC_DET_THRESH_MASK;
 754                 }
 755                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg);
 756
 757                 cfg = 0;
 758                 mask = 0;
 759                 switch (aad_pdata->jack_ins_deb) {
 760                 case DA7219_AAD_JACK_INS_DEB_5MS:
 761                 case DA7219_AAD_JACK_INS_DEB_10MS:
 762                 case DA7219_AAD_JACK_INS_DEB_20MS:
 763                 case DA7219_AAD_JACK_INS_DEB_50MS:
 764                 case DA7219_AAD_JACK_INS_DEB_100MS:
 765                 case DA7219_AAD_JACK_INS_DEB_200MS:
 766                 case DA7219_AAD_JACK_INS_DEB_500MS:
 767                 case DA7219_AAD_JACK_INS_DEB_1S:
 768                         cfg |= (aad_pdata->jack_ins_deb <<
 769                                 DA7219_JACKDET_DEBOUNCE_SHIFT);
 770                         mask |= DA7219_JACKDET_DEBOUNCE_MASK;
 771                 }
 772                 switch (aad_pdata->jack_det_rate) {
 773                 case DA7219_AAD_JACK_DET_RATE_32_64MS:
 774                 case DA7219_AAD_JACK_DET_RATE_64_128MS:
 775                 case DA7219_AAD_JACK_DET_RATE_128_256MS:
 776                 case DA7219_AAD_JACK_DET_RATE_256_512MS:
 777                         cfg |= (aad_pdata->jack_det_rate <<
 778                                 DA7219_JACK_DETECT_RATE_SHIFT);
 779                         mask |= DA7219_JACK_DETECT_RATE_MASK;
 780                 }
 781                 switch (aad_pdata->jack_rem_deb) {
 782                 case DA7219_AAD_JACK_REM_DEB_1MS:
 783                 case DA7219_AAD_JACK_REM_DEB_5MS:
 784                 case DA7219_AAD_JACK_REM_DEB_10MS:
 785                 case DA7219_AAD_JACK_REM_DEB_20MS:
 786                         cfg |= (aad_pdata->jack_rem_deb <<
 787                                 DA7219_JACKDET_REM_DEB_SHIFT);
 788                         mask |= DA7219_JACKDET_REM_DEB_MASK;
 789                 }
 790                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg);
 791
 792                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3,
 793                               aad_pdata->a_d_btn_thr);
 794                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4,
 795                               aad_pdata->d_b_btn_thr);
 796                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5,
 797                               aad_pdata->b_c_btn_thr);
 798                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6,
 799                               aad_pdata->c_mic_btn_thr);
 800
 801                 cfg = 0;
 802                 mask = 0;
 803                 switch (aad_pdata->btn_avg) {
 804                 case DA7219_AAD_BTN_AVG_1:
 805                 case DA7219_AAD_BTN_AVG_2:
 806                 case DA7219_AAD_BTN_AVG_4:
 807                 case DA7219_AAD_BTN_AVG_8:
 808                         cfg |= (aad_pdata->btn_avg <<
 809                                 DA7219_BUTTON_AVERAGE_SHIFT);
 810                         mask |= DA7219_BUTTON_AVERAGE_MASK;
 811                 }
 812                 switch (aad_pdata->adc_1bit_rpt) {
 813                 case DA7219_AAD_ADC_1BIT_RPT_1:
 814                 case DA7219_AAD_ADC_1BIT_RPT_2:
 815                 case DA7219_AAD_ADC_1BIT_RPT_4:
 816                 case DA7219_AAD_ADC_1BIT_RPT_8:
 817                         cfg |= (aad_pdata->adc_1bit_rpt <<
 818                                DA7219_ADC_1_BIT_REPEAT_SHIFT);
 819                         mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
 820                 }
 821                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg);
 822         }
 823 }
 824
 825
 826 /*
 827  * Suspend/Resume
 828  */
 829
 830 void da7219_aad_suspend(struct snd_soc_component *component)
 831 {
 832         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 833         struct da7219_aad_priv *da7219_aad = da7219->aad;
 834         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 835         u8 micbias_ctrl;
 836
 837         if (da7219_aad->jack) {
 838                 /* Disable jack detection during suspend */
 839                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 840                                     DA7219_ACCDET_EN_MASK, 0);
 841
 842                 /*
 843                  * If we have a 4-pole jack inserted, then micbias will be
 844                  * enabled. We can disable micbias here, and keep a note to
 845                  * re-enable it on resume. If jack removal occurred during
 846                  * suspend then this will be dealt with through the IRQ handler.
 847                  */
 848                 if (da7219_aad->jack_inserted) {
 849                         micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
 850                         if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
 851                                 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
 852                                 snd_soc_dapm_sync(dapm);
 853                                 da7219_aad->micbias_resume_enable = true;
 854                         }
 855                 }
 856         }
 857 }
 858
 859 void da7219_aad_resume(struct snd_soc_component *component)
 860 {
 861         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 862         struct da7219_aad_priv *da7219_aad = da7219->aad;
 863         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 864
 865         if (da7219_aad->jack) {
 866                 /* Re-enable micbias if previously enabled for 4-pole jack */
 867                 if (da7219_aad->jack_inserted &&
 868                     da7219_aad->micbias_resume_enable) {
 869                         snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
 870                         snd_soc_dapm_sync(dapm);
 871                         da7219_aad->micbias_resume_enable = false;
 872                 }
 873
 874                 /* Re-enable jack detection */
 875                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 876                                     DA7219_ACCDET_EN_MASK,
 877                                     DA7219_ACCDET_EN_MASK);
 878         }
 879 }
 880
 881
 882 /*
 883  * Init/Exit
 884  */
 885
 886 int da7219_aad_init(struct snd_soc_component *component)
 887 {
 888         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 889         struct da7219_aad_priv *da7219_aad = da7219->aad;
 890         u8 mask[DA7219_AAD_IRQ_REG_MAX];
 891         int ret;
 892
 893         da7219_aad->component = component;
 894
 895         /* Handle any DT/ACPI/platform data */
 896         da7219_aad_handle_pdata(component);
 897
 898         /* Disable button detection */
 899         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 900                             DA7219_BUTTON_CONFIG_MASK, 0);
 901
 902         INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
 903         INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
 904
 905         ret = request_threaded_irq(da7219_aad->irq, NULL,
 906                                    da7219_aad_irq_thread,
 907                                    IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 908                                    "da7219-aad", da7219_aad);
 909         if (ret) {
 910                 dev_err(component->dev, "Failed to request IRQ: %d\n", ret);
 911                 return ret;
 912         }
 913
 914         /* Unmask AAD IRQs */
 915         memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
 916         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
 917                           &mask, DA7219_AAD_IRQ_REG_MAX);
 918
 919         return 0;
 920 }
 921 EXPORT_SYMBOL_GPL(da7219_aad_init);
 922
 923 void da7219_aad_exit(struct snd_soc_component *component)
 924 {
 925         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 926         struct da7219_aad_priv *da7219_aad = da7219->aad;
 927         u8 mask[DA7219_AAD_IRQ_REG_MAX];
 928
 929         /* Mask off AAD IRQs */
 930         memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
 931         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
 932                           mask, DA7219_AAD_IRQ_REG_MAX);
 933
 934         free_irq(da7219_aad->irq, da7219_aad);
 935
 936         cancel_work_sync(&da7219_aad->btn_det_work);
 937         cancel_work_sync(&da7219_aad->hptest_work);
 938 }
 939 EXPORT_SYMBOL_GPL(da7219_aad_exit);
 940
 941 /*
 942  * AAD related I2C probe handling
 943  */
 944
 945 int da7219_aad_probe(struct i2c_client *i2c)
 946 {
 947         struct da7219_priv *da7219 = i2c_get_clientdata(i2c);
 948         struct device *dev = &i2c->dev;
 949         struct da7219_aad_priv *da7219_aad;
 950
 951         da7219_aad = devm_kzalloc(dev, sizeof(*da7219_aad), GFP_KERNEL);
 952         if (!da7219_aad)
 953                 return -ENOMEM;
 954
 955         da7219->aad = da7219_aad;
 956
 957         /* Retrieve any DT/ACPI/platform data */
 958         if (da7219->pdata && !da7219->pdata->aad_pdata)
 959                 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(dev);
 960
 961         return 0;
 962 }
 963 EXPORT_SYMBOL_GPL(da7219_aad_probe);
 964
 965 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
 966 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
 967 MODULE_LICENSE("GPL");