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
  47 /*
  48  * Button/HPTest work
  49  */
  50
  51 static void da7219_aad_btn_det_work(struct work_struct *work)
  52 {
  53         struct da7219_aad_priv *da7219_aad =
  54                 container_of(work, struct da7219_aad_priv, btn_det_work);
  55         struct snd_soc_component *component = da7219_aad->component;
  56         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
  57         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
  58         u8 statusa, micbias_ctrl;
  59         bool micbias_up = false;
  60         int retries = 0;
  61
  62         /* Drive headphones/lineout */
  63         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
  64                             DA7219_HP_L_AMP_OE_MASK,
  65                             DA7219_HP_L_AMP_OE_MASK);
  66         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
  67                             DA7219_HP_R_AMP_OE_MASK,
  68                             DA7219_HP_R_AMP_OE_MASK);
  69
  70         /* Make sure mic bias is up */
  71         snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
  72         snd_soc_dapm_sync(dapm);
  73
  74         do {
  75                 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
  76                 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
  77                         micbias_up = true;
  78                 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
  79                         msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
  80         } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
  81
  82         if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
  83                 dev_warn(component->dev, "Mic bias status check timed out");
  84
  85         da7219->micbias_on_event = true;
  86
  87         /*
  88          * Mic bias pulse required to enable mic, must be done before enabling
  89          * button detection to prevent erroneous button readings.
  90          */
  91         if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
  92                 /* Pulse higher level voltage */
  93                 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
  94                 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL,
  95                                     DA7219_MICBIAS1_LEVEL_MASK,
  96                                     da7219_aad->micbias_pulse_lvl);
  97                 msleep(da7219_aad->micbias_pulse_time);
  98                 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl);
  99
 100         }
 101
 102         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 103                             DA7219_BUTTON_CONFIG_MASK,
 104                             da7219_aad->btn_cfg);
 105 }
 106
 107 static void da7219_aad_hptest_work(struct work_struct *work)
 108 {
 109         struct da7219_aad_priv *da7219_aad =
 110                 container_of(work, struct da7219_aad_priv, hptest_work);
 111         struct snd_soc_component *component = da7219_aad->component;
 112         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 113         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 114
 115         __le16 tonegen_freq_hptest;
 116         u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
 117         int report = 0, ret;
 118
 119         /* Lock DAPM, Kcontrols affected by this test and the PLL */
 120         snd_soc_dapm_mutex_lock(dapm);
 121         mutex_lock(&da7219->ctrl_lock);
 122         mutex_lock(&da7219->pll_lock);
 123
 124         /* Ensure MCLK is available for HP test procedure */
 125         if (da7219->mclk) {
 126                 ret = clk_prepare_enable(da7219->mclk);
 127                 if (ret) {
 128                         dev_err(component->dev, "Failed to enable mclk - %d\n", ret);
 129                         mutex_unlock(&da7219->pll_lock);
 130                         mutex_unlock(&da7219->ctrl_lock);
 131                         snd_soc_dapm_mutex_unlock(dapm);
 132                         return;
 133                 }
 134         }
 135
 136         /*
 137          * If MCLK not present, then we're using the internal oscillator and
 138          * require different frequency settings to achieve the same result.
 139          *
 140          * If MCLK is present, but PLL is not enabled then we enable it here to
 141          * ensure a consistent detection procedure.
 142          */
 143         pll_srm_sts = snd_soc_component_read(component, DA7219_PLL_SRM_STS);
 144         if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
 145                 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
 146
 147                 pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL);
 148                 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
 149                         da7219_set_pll(component, DA7219_SYSCLK_PLL,
 150                                        DA7219_PLL_FREQ_OUT_98304);
 151         } else {
 152                 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
 153         }
 154
 155         /* Ensure gain ramping at fastest rate */
 156         gain_ramp_ctrl = snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL);
 157         snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
 158
 159         /* Bypass cache so it saves current settings */
 160         regcache_cache_bypass(da7219->regmap, true);
 161
 162         /* Make sure Tone Generator is disabled */
 163         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
 164
 165         /* Enable HPTest block, 1KOhms check */
 166         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
 167                             DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
 168                             DA7219_HPTEST_EN_MASK |
 169                             DA7219_HPTEST_RES_SEL_1KOHMS);
 170
 171         /* Set gains to 0db */
 172         snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 173         snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 174         snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
 175         snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
 176
 177         /* Disable DAC filters, EQs and soft mute */
 178         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
 179                             0);
 180         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
 181                             0);
 182         snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5,
 183                             DA7219_DAC_SOFTMUTE_EN_MASK, 0);
 184
 185         /* Enable HP left & right paths */
 186         snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
 187                             DA7219_CP_EN_MASK);
 188         snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC,
 189                             DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
 190                             DA7219_DAC_L_SRC_TONEGEN |
 191                             DA7219_DAC_R_SRC_TONEGEN);
 192         snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL,
 193                             DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
 194                             DA7219_DAC_L_EN_MASK);
 195         snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL,
 196                             DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
 197                             DA7219_DAC_R_EN_MASK);
 198         snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT,
 199                             DA7219_MIXOUT_L_MIX_SELECT_MASK,
 200                             DA7219_MIXOUT_L_MIX_SELECT_MASK);
 201         snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT,
 202                             DA7219_MIXOUT_R_MIX_SELECT_MASK,
 203                             DA7219_MIXOUT_R_MIX_SELECT_MASK);
 204         snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L,
 205                             DA7219_OUTFILT_ST_1L_SRC_MASK,
 206                             DA7219_DMIX_ST_SRC_OUTFILT1L);
 207         snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R,
 208                             DA7219_OUTFILT_ST_1R_SRC_MASK,
 209                             DA7219_DMIX_ST_SRC_OUTFILT1R);
 210         snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL,
 211                             DA7219_MIXOUT_L_AMP_EN_MASK,
 212                             DA7219_MIXOUT_L_AMP_EN_MASK);
 213         snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL,
 214                             DA7219_MIXOUT_R_AMP_EN_MASK,
 215                             DA7219_MIXOUT_R_AMP_EN_MASK);
 216         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 217                             DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
 218                             DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
 219         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 220                             DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
 221                             DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
 222         msleep(DA7219_SETTLING_DELAY);
 223         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 224                             DA7219_HP_L_AMP_MUTE_EN_MASK |
 225                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
 226         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 227                             DA7219_HP_R_AMP_MUTE_EN_MASK |
 228                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
 229
 230         /*
 231          * If we're running from the internal oscillator then give audio paths
 232          * time to settle before running test.
 233          */
 234         if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
 235                 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
 236
 237         /* Configure & start Tone Generator */
 238         snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
 239         regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 240                          &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
 241         snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2,
 242                             DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
 243                             DA7219_SWG_SEL_SRAMP |
 244                             DA7219_TONE_GEN_GAIN_MINUS_15DB);
 245         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
 246
 247         msleep(DA7219_AAD_HPTEST_PERIOD);
 248
 249         /* Grab comparator reading */
 250         accdet_cfg8 = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_8);
 251         if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
 252                 report |= SND_JACK_HEADPHONE;
 253         else
 254                 report |= SND_JACK_LINEOUT;
 255
 256         /* Stop tone generator */
 257         snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
 258
 259         msleep(DA7219_AAD_HPTEST_PERIOD);
 260
 261         /* Restore original settings from cache */
 262         regcache_mark_dirty(da7219->regmap);
 263         regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
 264                              DA7219_HP_R_CTRL);
 265         msleep(DA7219_SETTLING_DELAY);
 266         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
 267                              DA7219_MIXOUT_R_CTRL);
 268         regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
 269                              DA7219_DROUTING_ST_OUTFILT_1R);
 270         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
 271                              DA7219_MIXOUT_R_SELECT);
 272         regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
 273                              DA7219_DAC_R_CTRL);
 274         regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
 275                              DA7219_DIG_ROUTING_DAC);
 276         regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
 277         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
 278                              DA7219_DAC_FILTERS5);
 279         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
 280                              DA7219_DAC_FILTERS1);
 281         regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
 282                              DA7219_HP_R_GAIN);
 283         regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
 284                              DA7219_DAC_R_GAIN);
 285         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
 286                              DA7219_TONE_GEN_ON_PER);
 287         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 288                              DA7219_TONE_GEN_FREQ1_U);
 289         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
 290                              DA7219_TONE_GEN_CFG2);
 291
 292         regcache_cache_bypass(da7219->regmap, false);
 293
 294         /* Disable HPTest block */
 295         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
 296                             DA7219_HPTEST_EN_MASK, 0);
 297
 298         /*
 299          * If we're running from the internal oscillator then give audio paths
 300          * time to settle before allowing headphones to be driven as required.
 301          */
 302         if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
 303                 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
 304
 305         /* Restore gain ramping rate */
 306         snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
 307
 308         /* Drive Headphones/lineout */
 309         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
 310                             DA7219_HP_L_AMP_OE_MASK);
 311         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
 312                             DA7219_HP_R_AMP_OE_MASK);
 313
 314         /* Restore PLL to previous configuration, if re-configured */
 315         if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
 316             ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
 317                 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
 318
 319         /* Remove MCLK, if previously enabled */
 320         if (da7219->mclk)
 321                 clk_disable_unprepare(da7219->mclk);
 322
 323         mutex_unlock(&da7219->pll_lock);
 324         mutex_unlock(&da7219->ctrl_lock);
 325         snd_soc_dapm_mutex_unlock(dapm);
 326
 327         /*
 328          * Only send report if jack hasn't been removed during process,
 329          * otherwise it's invalid and we drop it.
 330          */
 331         if (da7219_aad->jack_inserted)
 332                 snd_soc_jack_report(da7219_aad->jack, report,
 333                                     SND_JACK_HEADSET | SND_JACK_LINEOUT);
 334 }
 335
 336 static void da7219_aad_jack_det_work(struct work_struct *work)
 337 {
 338         struct da7219_aad_priv *da7219_aad =
 339                 container_of(work, struct da7219_aad_priv, jack_det_work.work);
 340         struct snd_soc_component *component = da7219_aad->component;
 341
 342         /* Enable ground switch */
 343         snd_soc_component_update_bits(component, 0xFB, 0x01, 0x01);
 344 }
 345
 346 /*
 347  * IRQ
 348  */
 349
 350 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
 351 {
 352         struct da7219_aad_priv *da7219_aad = data;
 353         struct snd_soc_component *component = da7219_aad->component;
 354         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 355         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 356         u8 events[DA7219_AAD_IRQ_REG_MAX];
 357         u8 statusa;
 358         int i, ret, report = 0, mask = 0;
 359
 360         /* Read current IRQ events */
 361         ret = regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 362                                events, DA7219_AAD_IRQ_REG_MAX);
 363         if (ret) {
 364                 dev_warn_ratelimited(component->dev, "Failed to read IRQ events: %d\n", ret);
 365                 return IRQ_NONE;
 366         }
 367
 368         if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
 369                 return IRQ_NONE;
 370
 371         /* Read status register for jack insertion & type status */
 372         statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
 373
 374         if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_INSERTED_MASK) {
 375                 u8 srm_st;
 376                 int delay = 0;
 377
 378                 srm_st = snd_soc_component_read(component,
 379                                         DA7219_PLL_SRM_STS) & DA7219_PLL_SRM_STS_MCLK;
 380                 delay = (da7219_aad->gnd_switch_delay * ((srm_st == 0x0) ? 2 : 1) - 2);
 381                 queue_delayed_work(da7219_aad->aad_wq,
 382                                                         &da7219_aad->jack_det_work,
 383                                                         msecs_to_jiffies(delay));
 384         }
 385
 386         /* Clear events */
 387         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 388                           events, DA7219_AAD_IRQ_REG_MAX);
 389
 390         dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
 391                 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
 392                 statusa);
 393
 394         if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
 395                 /* Jack Insertion */
 396                 if (events[DA7219_AAD_IRQ_REG_A] &
 397                     DA7219_E_JACK_INSERTED_MASK) {
 398                         report |= SND_JACK_MECHANICAL;
 399                         mask |= SND_JACK_MECHANICAL;
 400                         da7219_aad->jack_inserted = true;
 401                 }
 402
 403                 /* Jack type detection */
 404                 if (events[DA7219_AAD_IRQ_REG_A] &
 405                     DA7219_E_JACK_DETECT_COMPLETE_MASK) {
 406                         /*
 407                          * If 4-pole, then enable button detection, else perform
 408                          * HP impedance test to determine output type to report.
 409                          *
 410                          * We schedule work here as the tasks themselves can
 411                          * take time to complete, and in particular for hptest
 412                          * we want to be able to check if the jack was removed
 413                          * during the procedure as this will invalidate the
 414                          * result. By doing this as work, the IRQ thread can
 415                          * handle a removal, and we can check at the end of
 416                          * hptest if we have a valid result or not.
 417                          */
 418
 419                         cancel_delayed_work_sync(&da7219_aad->jack_det_work);
 420                         /* Disable ground switch */
 421                         snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00);
 422
 423                         if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 424                                 report |= SND_JACK_HEADSET;
 425                                 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
 426                                 queue_work(da7219_aad->aad_wq, &da7219_aad->btn_det_work);
 427                         } else {
 428                                 queue_work(da7219_aad->aad_wq, &da7219_aad->hptest_work);
 429                         }
 430                 }
 431
 432                 /* Button support for 4-pole jack */
 433                 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 434                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 435                                 /* Button Press */
 436                                 if (events[DA7219_AAD_IRQ_REG_B] &
 437                                     (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
 438                                         report |= SND_JACK_BTN_0 >> i;
 439                                         mask |= SND_JACK_BTN_0 >> i;
 440                                 }
 441                         }
 442                         snd_soc_jack_report(da7219_aad->jack, report, mask);
 443
 444                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 445                                 /* Button Release */
 446                                 if (events[DA7219_AAD_IRQ_REG_B] &
 447                                     (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
 448                                         report &= ~(SND_JACK_BTN_0 >> i);
 449                                         mask |= SND_JACK_BTN_0 >> i;
 450                                 }
 451                         }
 452                 }
 453         } else {
 454                 /* Jack removal */
 455                 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
 456                         report = 0;
 457                         mask |= DA7219_AAD_REPORT_ALL_MASK;
 458                         da7219_aad->jack_inserted = false;
 459
 460                         /* Cancel any pending work */
 461                         cancel_delayed_work_sync(&da7219_aad->jack_det_work);
 462                         cancel_work_sync(&da7219_aad->btn_det_work);
 463                         cancel_work_sync(&da7219_aad->hptest_work);
 464
 465                         /* Un-drive headphones/lineout */
 466                         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
 467                                             DA7219_HP_R_AMP_OE_MASK, 0);
 468                         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
 469                                             DA7219_HP_L_AMP_OE_MASK, 0);
 470
 471                         /* Ensure button detection disabled */
 472                         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 473                                             DA7219_BUTTON_CONFIG_MASK, 0);
 474
 475                         da7219->micbias_on_event = false;
 476
 477                         /* Disable mic bias */
 478                         snd_soc_dapm_disable_pin(dapm, "Mic Bias");
 479                         snd_soc_dapm_sync(dapm);
 480
 481                         /* Disable ground switch */
 482                         snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00);
 483                 }
 484         }
 485
 486         snd_soc_jack_report(da7219_aad->jack, report, mask);
 487
 488         return IRQ_HANDLED;
 489 }
 490
 491 /*
 492  * DT/ACPI to pdata conversion
 493  */
 494
 495 static enum da7219_aad_micbias_pulse_lvl
 496         da7219_aad_fw_micbias_pulse_lvl(struct device *dev, u32 val)
 497 {
 498         switch (val) {
 499         case 2800:
 500                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
 501         case 2900:
 502                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
 503         default:
 504                 dev_warn(dev, "Invalid micbias pulse level");
 505                 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 506         }
 507 }
 508
 509 static enum da7219_aad_btn_cfg
 510         da7219_aad_fw_btn_cfg(struct device *dev, u32 val)
 511 {
 512         switch (val) {
 513         case 2:
 514                 return DA7219_AAD_BTN_CFG_2MS;
 515         case 5:
 516                 return DA7219_AAD_BTN_CFG_5MS;
 517         case 10:
 518                 return DA7219_AAD_BTN_CFG_10MS;
 519         case 50:
 520                 return DA7219_AAD_BTN_CFG_50MS;
 521         case 100:
 522                 return DA7219_AAD_BTN_CFG_100MS;
 523         case 200:
 524                 return DA7219_AAD_BTN_CFG_200MS;
 525         case 500:
 526                 return DA7219_AAD_BTN_CFG_500MS;
 527         default:
 528                 dev_warn(dev, "Invalid button config");
 529                 return DA7219_AAD_BTN_CFG_10MS;
 530         }
 531 }
 532
 533 static enum da7219_aad_mic_det_thr
 534         da7219_aad_fw_mic_det_thr(struct device *dev, u32 val)
 535 {
 536         switch (val) {
 537         case 200:
 538                 return DA7219_AAD_MIC_DET_THR_200_OHMS;
 539         case 500:
 540                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 541         case 750:
 542                 return DA7219_AAD_MIC_DET_THR_750_OHMS;
 543         case 1000:
 544                 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
 545         default:
 546                 dev_warn(dev, "Invalid mic detect threshold");
 547                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 548         }
 549 }
 550
 551 static enum da7219_aad_jack_ins_deb
 552         da7219_aad_fw_jack_ins_deb(struct device *dev, u32 val)
 553 {
 554         switch (val) {
 555         case 5:
 556                 return DA7219_AAD_JACK_INS_DEB_5MS;
 557         case 10:
 558                 return DA7219_AAD_JACK_INS_DEB_10MS;
 559         case 20:
 560                 return DA7219_AAD_JACK_INS_DEB_20MS;
 561         case 50:
 562                 return DA7219_AAD_JACK_INS_DEB_50MS;
 563         case 100:
 564                 return DA7219_AAD_JACK_INS_DEB_100MS;
 565         case 200:
 566                 return DA7219_AAD_JACK_INS_DEB_200MS;
 567         case 500:
 568                 return DA7219_AAD_JACK_INS_DEB_500MS;
 569         case 1000:
 570                 return DA7219_AAD_JACK_INS_DEB_1S;
 571         default:
 572                 dev_warn(dev, "Invalid jack insert debounce");
 573                 return DA7219_AAD_JACK_INS_DEB_20MS;
 574         }
 575 }
 576
 577 static enum da7219_aad_jack_ins_det_pty
 578         da7219_aad_fw_jack_ins_det_pty(struct device *dev, const char *str)
 579 {
 580         if (!strcmp(str, "low")) {
 581                 return DA7219_AAD_JACK_INS_DET_PTY_LOW;
 582         } else if (!strcmp(str, "high")) {
 583                 return DA7219_AAD_JACK_INS_DET_PTY_HIGH;
 584         } else {
 585                 dev_warn(dev, "Invalid jack insertion detection polarity");
 586                 return DA7219_AAD_JACK_INS_DET_PTY_LOW;
 587         }
 588 }
 589
 590 static enum da7219_aad_jack_det_rate
 591         da7219_aad_fw_jack_det_rate(struct device *dev, const char *str)
 592 {
 593         if (!strcmp(str, "32_64")) {
 594                 return DA7219_AAD_JACK_DET_RATE_32_64MS;
 595         } else if (!strcmp(str, "64_128")) {
 596                 return DA7219_AAD_JACK_DET_RATE_64_128MS;
 597         } else if (!strcmp(str, "128_256")) {
 598                 return DA7219_AAD_JACK_DET_RATE_128_256MS;
 599         } else if (!strcmp(str, "256_512")) {
 600                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 601         } else {
 602                 dev_warn(dev, "Invalid jack detect rate");
 603                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 604         }
 605 }
 606
 607 static enum da7219_aad_jack_rem_deb
 608         da7219_aad_fw_jack_rem_deb(struct device *dev, u32 val)
 609 {
 610         switch (val) {
 611         case 1:
 612                 return DA7219_AAD_JACK_REM_DEB_1MS;
 613         case 5:
 614                 return DA7219_AAD_JACK_REM_DEB_5MS;
 615         case 10:
 616                 return DA7219_AAD_JACK_REM_DEB_10MS;
 617         case 20:
 618                 return DA7219_AAD_JACK_REM_DEB_20MS;
 619         default:
 620                 dev_warn(dev, "Invalid jack removal debounce");
 621                 return DA7219_AAD_JACK_REM_DEB_1MS;
 622         }
 623 }
 624
 625 static enum da7219_aad_btn_avg
 626         da7219_aad_fw_btn_avg(struct device *dev, u32 val)
 627 {
 628         switch (val) {
 629         case 1:
 630                 return DA7219_AAD_BTN_AVG_1;
 631         case 2:
 632                 return DA7219_AAD_BTN_AVG_2;
 633         case 4:
 634                 return DA7219_AAD_BTN_AVG_4;
 635         case 8:
 636                 return DA7219_AAD_BTN_AVG_8;
 637         default:
 638                 dev_warn(dev, "Invalid button average value");
 639                 return DA7219_AAD_BTN_AVG_2;
 640         }
 641 }
 642
 643 static enum da7219_aad_adc_1bit_rpt
 644         da7219_aad_fw_adc_1bit_rpt(struct device *dev, u32 val)
 645 {
 646         switch (val) {
 647         case 1:
 648                 return DA7219_AAD_ADC_1BIT_RPT_1;
 649         case 2:
 650                 return DA7219_AAD_ADC_1BIT_RPT_2;
 651         case 4:
 652                 return DA7219_AAD_ADC_1BIT_RPT_4;
 653         case 8:
 654                 return DA7219_AAD_ADC_1BIT_RPT_8;
 655         default:
 656                 dev_warn(dev, "Invalid ADC 1-bit repeat value");
 657                 return DA7219_AAD_ADC_1BIT_RPT_1;
 658         }
 659 }
 660
 661 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
 662 {
 663         struct i2c_client *i2c = to_i2c_client(dev);
 664         struct fwnode_handle *aad_np;
 665         struct da7219_aad_pdata *aad_pdata;
 666         const char *fw_str;
 667         u32 fw_val32;
 668
 669         aad_np = device_get_named_child_node(dev, "da7219_aad");
 670         if (!aad_np)
 671                 return NULL;
 672
 673         aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
 674         if (!aad_pdata)
 675                 return NULL;
 676
 677         aad_pdata->irq = i2c->irq;
 678
 679         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
 680                                      &fw_val32) >= 0)
 681                 aad_pdata->micbias_pulse_lvl =
 682                         da7219_aad_fw_micbias_pulse_lvl(dev, fw_val32);
 683         else
 684                 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 685
 686         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
 687                                      &fw_val32) >= 0)
 688                 aad_pdata->micbias_pulse_time = fw_val32;
 689
 690         if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
 691                 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(dev, fw_val32);
 692         else
 693                 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
 694
 695         if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
 696                 aad_pdata->mic_det_thr =
 697                         da7219_aad_fw_mic_det_thr(dev, fw_val32);
 698         else
 699                 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
 700
 701         if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
 702                 aad_pdata->jack_ins_deb =
 703                         da7219_aad_fw_jack_ins_deb(dev, fw_val32);
 704         else
 705                 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
 706
 707         if (!fwnode_property_read_string(aad_np, "dlg,jack-ins-det-pty", &fw_str))
 708                 aad_pdata->jack_ins_det_pty =
 709                         da7219_aad_fw_jack_ins_det_pty(dev, fw_str);
 710         else
 711                 aad_pdata->jack_ins_det_pty = DA7219_AAD_JACK_INS_DET_PTY_LOW;
 712
 713         if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
 714                 aad_pdata->jack_det_rate =
 715                         da7219_aad_fw_jack_det_rate(dev, fw_str);
 716         else
 717                 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
 718
 719         if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
 720                 aad_pdata->jack_rem_deb =
 721                         da7219_aad_fw_jack_rem_deb(dev, fw_val32);
 722         else
 723                 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
 724
 725         if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
 726                 aad_pdata->a_d_btn_thr = (u8) fw_val32;
 727         else
 728                 aad_pdata->a_d_btn_thr = 0xA;
 729
 730         if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
 731                 aad_pdata->d_b_btn_thr = (u8) fw_val32;
 732         else
 733                 aad_pdata->d_b_btn_thr = 0x16;
 734
 735         if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
 736                 aad_pdata->b_c_btn_thr = (u8) fw_val32;
 737         else
 738                 aad_pdata->b_c_btn_thr = 0x21;
 739
 740         if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
 741                 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
 742         else
 743                 aad_pdata->c_mic_btn_thr = 0x3E;
 744
 745         if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
 746                 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(dev, fw_val32);
 747         else
 748                 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
 749
 750         if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
 751                 aad_pdata->adc_1bit_rpt =
 752                         da7219_aad_fw_adc_1bit_rpt(dev, fw_val32);
 753         else
 754                 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
 755
 756         return aad_pdata;
 757 }
 758
 759 static void da7219_aad_handle_pdata(struct snd_soc_component *component)
 760 {
 761         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 762         struct da7219_aad_priv *da7219_aad = da7219->aad;
 763         struct da7219_pdata *pdata = da7219->pdata;
 764
 765         if ((pdata) && (pdata->aad_pdata)) {
 766                 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
 767                 u8 cfg, mask;
 768
 769                 da7219_aad->irq = aad_pdata->irq;
 770
 771                 switch (aad_pdata->micbias_pulse_lvl) {
 772                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
 773                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
 774                         da7219_aad->micbias_pulse_lvl =
 775                                 (aad_pdata->micbias_pulse_lvl <<
 776                                  DA7219_MICBIAS1_LEVEL_SHIFT);
 777                         break;
 778                 default:
 779                         break;
 780                 }
 781
 782                 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
 783
 784                 switch (aad_pdata->btn_cfg) {
 785                 case DA7219_AAD_BTN_CFG_2MS:
 786                 case DA7219_AAD_BTN_CFG_5MS:
 787                 case DA7219_AAD_BTN_CFG_10MS:
 788                 case DA7219_AAD_BTN_CFG_50MS:
 789                 case DA7219_AAD_BTN_CFG_100MS:
 790                 case DA7219_AAD_BTN_CFG_200MS:
 791                 case DA7219_AAD_BTN_CFG_500MS:
 792                         da7219_aad->btn_cfg  = (aad_pdata->btn_cfg <<
 793                                                 DA7219_BUTTON_CONFIG_SHIFT);
 794                 }
 795
 796                 cfg = 0;
 797                 mask = 0;
 798                 switch (aad_pdata->mic_det_thr) {
 799                 case DA7219_AAD_MIC_DET_THR_200_OHMS:
 800                 case DA7219_AAD_MIC_DET_THR_500_OHMS:
 801                 case DA7219_AAD_MIC_DET_THR_750_OHMS:
 802                 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
 803                         cfg |= (aad_pdata->mic_det_thr <<
 804                                 DA7219_MIC_DET_THRESH_SHIFT);
 805                         mask |= DA7219_MIC_DET_THRESH_MASK;
 806                 }
 807                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg);
 808
 809                 cfg = 0;
 810                 mask = 0;
 811                 switch (aad_pdata->jack_ins_deb) {
 812                 case DA7219_AAD_JACK_INS_DEB_5MS:
 813                 case DA7219_AAD_JACK_INS_DEB_10MS:
 814                 case DA7219_AAD_JACK_INS_DEB_20MS:
 815                 case DA7219_AAD_JACK_INS_DEB_50MS:
 816                 case DA7219_AAD_JACK_INS_DEB_100MS:
 817                 case DA7219_AAD_JACK_INS_DEB_200MS:
 818                 case DA7219_AAD_JACK_INS_DEB_500MS:
 819                 case DA7219_AAD_JACK_INS_DEB_1S:
 820                         cfg |= (aad_pdata->jack_ins_deb <<
 821                                 DA7219_JACKDET_DEBOUNCE_SHIFT);
 822                         mask |= DA7219_JACKDET_DEBOUNCE_MASK;
 823                 }
 824                 switch (aad_pdata->jack_det_rate) {
 825                 case DA7219_AAD_JACK_DET_RATE_32_64MS:
 826                 case DA7219_AAD_JACK_DET_RATE_64_128MS:
 827                 case DA7219_AAD_JACK_DET_RATE_128_256MS:
 828                 case DA7219_AAD_JACK_DET_RATE_256_512MS:
 829                         cfg |= (aad_pdata->jack_det_rate <<
 830                                 DA7219_JACK_DETECT_RATE_SHIFT);
 831                         mask |= DA7219_JACK_DETECT_RATE_MASK;
 832                 }
 833                 switch (aad_pdata->jack_rem_deb) {
 834                 case DA7219_AAD_JACK_REM_DEB_1MS:
 835                 case DA7219_AAD_JACK_REM_DEB_5MS:
 836                 case DA7219_AAD_JACK_REM_DEB_10MS:
 837                 case DA7219_AAD_JACK_REM_DEB_20MS:
 838                         cfg |= (aad_pdata->jack_rem_deb <<
 839                                 DA7219_JACKDET_REM_DEB_SHIFT);
 840                         mask |= DA7219_JACKDET_REM_DEB_MASK;
 841                 }
 842                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg);
 843
 844                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3,
 845                               aad_pdata->a_d_btn_thr);
 846                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4,
 847                               aad_pdata->d_b_btn_thr);
 848                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5,
 849                               aad_pdata->b_c_btn_thr);
 850                 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6,
 851                               aad_pdata->c_mic_btn_thr);
 852
 853                 cfg = 0;
 854                 mask = 0;
 855                 switch (aad_pdata->btn_avg) {
 856                 case DA7219_AAD_BTN_AVG_1:
 857                 case DA7219_AAD_BTN_AVG_2:
 858                 case DA7219_AAD_BTN_AVG_4:
 859                 case DA7219_AAD_BTN_AVG_8:
 860                         cfg |= (aad_pdata->btn_avg <<
 861                                 DA7219_BUTTON_AVERAGE_SHIFT);
 862                         mask |= DA7219_BUTTON_AVERAGE_MASK;
 863                 }
 864                 switch (aad_pdata->adc_1bit_rpt) {
 865                 case DA7219_AAD_ADC_1BIT_RPT_1:
 866                 case DA7219_AAD_ADC_1BIT_RPT_2:
 867                 case DA7219_AAD_ADC_1BIT_RPT_4:
 868                 case DA7219_AAD_ADC_1BIT_RPT_8:
 869                         cfg |= (aad_pdata->adc_1bit_rpt <<
 870                                DA7219_ADC_1_BIT_REPEAT_SHIFT);
 871                         mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
 872                 }
 873                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg);
 874
 875                 switch (aad_pdata->jack_ins_det_pty) {
 876                 case DA7219_AAD_JACK_INS_DET_PTY_LOW:
 877                         snd_soc_component_write(component, 0xF0, 0x8B);
 878                         snd_soc_component_write(component, 0x75, 0x80);
 879                         snd_soc_component_write(component, 0xF0, 0x00);
 880                         break;
 881                 case DA7219_AAD_JACK_INS_DET_PTY_HIGH:
 882                         snd_soc_component_write(component, 0xF0, 0x8B);
 883                         snd_soc_component_write(component, 0x75, 0x00);
 884                         snd_soc_component_write(component, 0xF0, 0x00);
 885                         break;
 886                 default:
 887                         break;
 888                 }
 889         }
 890 }
 891
 892 static void da7219_aad_handle_gnd_switch_time(struct snd_soc_component *component)
 893 {
 894         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 895         struct da7219_aad_priv *da7219_aad = da7219->aad;
 896         u8 jack_det;
 897
 898         jack_det = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_2)
 899                 & DA7219_JACK_DETECT_RATE_MASK;
 900         switch (jack_det) {
 901         case 0x00:
 902                 da7219_aad->gnd_switch_delay = 32;
 903                 break;
 904         case 0x10:
 905                 da7219_aad->gnd_switch_delay = 64;
 906                 break;
 907         case 0x20:
 908                 da7219_aad->gnd_switch_delay = 128;
 909                 break;
 910         case 0x30:
 911                 da7219_aad->gnd_switch_delay = 256;
 912                 break;
 913         default:
 914                 da7219_aad->gnd_switch_delay = 32;
 915                 break;
 916         }
 917 }
 918
 919 /*
 920  * Suspend/Resume
 921  */
 922
 923 void da7219_aad_suspend(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         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 928         u8 micbias_ctrl;
 929
 930         if (da7219_aad->jack) {
 931                 /* Disable jack detection during suspend */
 932                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 933                                     DA7219_ACCDET_EN_MASK, 0);
 934
 935                 /*
 936                  * If we have a 4-pole jack inserted, then micbias will be
 937                  * enabled. We can disable micbias here, and keep a note to
 938                  * re-enable it on resume. If jack removal occurred during
 939                  * suspend then this will be dealt with through the IRQ handler.
 940                  */
 941                 if (da7219_aad->jack_inserted) {
 942                         micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
 943                         if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
 944                                 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
 945                                 snd_soc_dapm_sync(dapm);
 946                                 da7219_aad->micbias_resume_enable = true;
 947                         }
 948                 }
 949         }
 950
 951         synchronize_irq(da7219_aad->irq);
 952 }
 953
 954 void da7219_aad_resume(struct snd_soc_component *component)
 955 {
 956         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 957         struct da7219_aad_priv *da7219_aad = da7219->aad;
 958         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 959
 960         if (da7219_aad->jack) {
 961                 /* Re-enable micbias if previously enabled for 4-pole jack */
 962                 if (da7219_aad->jack_inserted &&
 963                     da7219_aad->micbias_resume_enable) {
 964                         snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
 965                         snd_soc_dapm_sync(dapm);
 966                         da7219_aad->micbias_resume_enable = false;
 967                 }
 968
 969                 /* Re-enable jack detection */
 970                 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 971                                     DA7219_ACCDET_EN_MASK,
 972                                     DA7219_ACCDET_EN_MASK);
 973         }
 974 }
 975
 976
 977 /*
 978  * Init/Exit
 979  */
 980
 981 int da7219_aad_init(struct snd_soc_component *component)
 982 {
 983         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
 984         struct da7219_aad_priv *da7219_aad = da7219->aad;
 985         u8 mask[DA7219_AAD_IRQ_REG_MAX];
 986         int ret;
 987
 988         da7219_aad->component = component;
 989
 990         /* Handle any DT/ACPI/platform data */
 991         da7219_aad_handle_pdata(component);
 992
 993         /* Disable button detection */
 994         snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
 995                             DA7219_BUTTON_CONFIG_MASK, 0);
 996
 997         da7219_aad_handle_gnd_switch_time(component);
 998
 999         da7219_aad->aad_wq = create_singlethread_workqueue("da7219-aad");
1000         if (!da7219_aad->aad_wq) {
1001                 dev_err(component->dev, "Failed to create aad workqueue\n");
1002                 return -ENOMEM;
1003         }
1004
1005         INIT_DELAYED_WORK(&da7219_aad->jack_det_work, da7219_aad_jack_det_work);
1006         INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
1007         INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
1008
1009         ret = request_threaded_irq(da7219_aad->irq, NULL,
1010                                    da7219_aad_irq_thread,
1011                                    IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1012                                    "da7219-aad", da7219_aad);
1013         if (ret) {
1014                 dev_err(component->dev, "Failed to request IRQ: %d\n", ret);
1015                 return ret;
1016         }
1017
1018         /* Unmask AAD IRQs */
1019         memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
1020         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
1021                           &mask, DA7219_AAD_IRQ_REG_MAX);
1022
1023         return 0;
1024 }
1025
1026 void da7219_aad_exit(struct snd_soc_component *component)
1027 {
1028         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1029         struct da7219_aad_priv *da7219_aad = da7219->aad;
1030         u8 mask[DA7219_AAD_IRQ_REG_MAX];
1031
1032         /* Mask off AAD IRQs */
1033         memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
1034         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
1035                           mask, DA7219_AAD_IRQ_REG_MAX);
1036
1037         free_irq(da7219_aad->irq, da7219_aad);
1038
1039         cancel_delayed_work_sync(&da7219_aad->jack_det_work);
1040         cancel_work_sync(&da7219_aad->btn_det_work);
1041         cancel_work_sync(&da7219_aad->hptest_work);
1042         destroy_workqueue(da7219_aad->aad_wq);
1043 }
1044
1045 /*
1046  * AAD related I2C probe handling
1047  */
1048
1049 int da7219_aad_probe(struct i2c_client *i2c)
1050 {
1051         struct da7219_priv *da7219 = i2c_get_clientdata(i2c);
1052         struct device *dev = &i2c->dev;
1053         struct da7219_aad_priv *da7219_aad;
1054
1055         da7219_aad = devm_kzalloc(dev, sizeof(*da7219_aad), GFP_KERNEL);
1056         if (!da7219_aad)
1057                 return -ENOMEM;
1058
1059         da7219->aad = da7219_aad;
1060
1061         /* Retrieve any DT/ACPI/platform data */
1062         if (da7219->pdata && !da7219->pdata->aad_pdata)
1063                 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(dev);
1064
1065         return 0;
1066 }
1067
1068 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
1069 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
1070 MODULE_AUTHOR("David Rau <David.Rau.opensource@dm.renesas.com>");
1071 MODULE_LICENSE("GPL");