linux/sound/soc/codecs/wm8996.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * wm8996.c - WM8996 audio codec interface
   4 *
   5 * Copyright 2011-2 Wolfson Microelectronics PLC.
   6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7 */
   8
   9#include <linux/module.h>
  10#include <linux/moduleparam.h>
  11#include <linux/init.h>
  12#include <linux/completion.h>
  13#include <linux/delay.h>
  14#include <linux/pm.h>
  15#include <linux/gcd.h>
  16#include <linux/gpio/driver.h>
  17#include <linux/gpio.h>
  18#include <linux/i2c.h>
  19#include <linux/regmap.h>
  20#include <linux/regulator/consumer.h>
  21#include <linux/slab.h>
  22#include <linux/workqueue.h>
  23#include <sound/core.h>
  24#include <sound/jack.h>
  25#include <sound/pcm.h>
  26#include <sound/pcm_params.h>
  27#include <sound/soc.h>
  28#include <sound/initval.h>
  29#include <sound/tlv.h>
  30#include <trace/events/asoc.h>
  31
  32#include <sound/wm8996.h>
  33#include "wm8996.h"
  34
  35#define WM8996_AIFS 2
  36
  37#define HPOUT1L 1
  38#define HPOUT1R 2
  39#define HPOUT2L 4
  40#define HPOUT2R 8
  41
  42#define WM8996_NUM_SUPPLIES 3
  43static const char *wm8996_supply_names[WM8996_NUM_SUPPLIES] = {
  44        "DBVDD",
  45        "AVDD1",
  46        "AVDD2",
  47};
  48
  49struct wm8996_priv {
  50        struct device *dev;
  51        struct regmap *regmap;
  52        struct snd_soc_component *component;
  53
  54        int ldo1ena;
  55
  56        int sysclk;
  57        int sysclk_src;
  58
  59        int fll_src;
  60        int fll_fref;
  61        int fll_fout;
  62
  63        struct completion fll_lock;
  64
  65        u16 dcs_pending;
  66        struct completion dcs_done;
  67
  68        u16 hpout_ena;
  69        u16 hpout_pending;
  70
  71        struct regulator_bulk_data supplies[WM8996_NUM_SUPPLIES];
  72        struct notifier_block disable_nb[WM8996_NUM_SUPPLIES];
  73        int bg_ena;
  74
  75        struct wm8996_pdata pdata;
  76
  77        int rx_rate[WM8996_AIFS];
  78        int bclk_rate[WM8996_AIFS];
  79
  80        /* Platform dependant ReTune mobile configuration */
  81        int num_retune_mobile_texts;
  82        const char **retune_mobile_texts;
  83        int retune_mobile_cfg[2];
  84        struct soc_enum retune_mobile_enum;
  85
  86        struct snd_soc_jack *jack;
  87        bool detecting;
  88        bool jack_mic;
  89        int jack_flips;
  90        wm8996_polarity_fn polarity_cb;
  91
  92#ifdef CONFIG_GPIOLIB
  93        struct gpio_chip gpio_chip;
  94#endif
  95};
  96
  97/* We can't use the same notifier block for more than one supply and
  98 * there's no way I can see to get from a callback to the caller
  99 * except container_of().
 100 */
 101#define WM8996_REGULATOR_EVENT(n) \
 102static int wm8996_regulator_event_##n(struct notifier_block *nb, \
 103                                    unsigned long event, void *data)    \
 104{ \
 105        struct wm8996_priv *wm8996 = container_of(nb, struct wm8996_priv, \
 106                                                  disable_nb[n]); \
 107        if (event & REGULATOR_EVENT_DISABLE) { \
 108                regcache_mark_dirty(wm8996->regmap);    \
 109        } \
 110        return 0; \
 111}
 112
 113WM8996_REGULATOR_EVENT(0)
 114WM8996_REGULATOR_EVENT(1)
 115WM8996_REGULATOR_EVENT(2)
 116
 117static const struct reg_default wm8996_reg[] = {
 118        { WM8996_POWER_MANAGEMENT_1, 0x0 },
 119        { WM8996_POWER_MANAGEMENT_2, 0x0 },
 120        { WM8996_POWER_MANAGEMENT_3, 0x0 },
 121        { WM8996_POWER_MANAGEMENT_4, 0x0 },
 122        { WM8996_POWER_MANAGEMENT_5, 0x0 },
 123        { WM8996_POWER_MANAGEMENT_6, 0x0 },
 124        { WM8996_POWER_MANAGEMENT_7, 0x10 },
 125        { WM8996_POWER_MANAGEMENT_8, 0x0 },
 126        { WM8996_LEFT_LINE_INPUT_VOLUME, 0x0 },
 127        { WM8996_RIGHT_LINE_INPUT_VOLUME, 0x0 },
 128        { WM8996_LINE_INPUT_CONTROL, 0x0 },
 129        { WM8996_DAC1_HPOUT1_VOLUME, 0x88 },
 130        { WM8996_DAC2_HPOUT2_VOLUME, 0x88 },
 131        { WM8996_DAC1_LEFT_VOLUME, 0x2c0 },
 132        { WM8996_DAC1_RIGHT_VOLUME, 0x2c0 },
 133        { WM8996_DAC2_LEFT_VOLUME, 0x2c0 },
 134        { WM8996_DAC2_RIGHT_VOLUME, 0x2c0 },
 135        { WM8996_OUTPUT1_LEFT_VOLUME, 0x80 },
 136        { WM8996_OUTPUT1_RIGHT_VOLUME, 0x80 },
 137        { WM8996_OUTPUT2_LEFT_VOLUME, 0x80 },
 138        { WM8996_OUTPUT2_RIGHT_VOLUME, 0x80 },
 139        { WM8996_MICBIAS_1, 0x39 },
 140        { WM8996_MICBIAS_2, 0x39 },
 141        { WM8996_LDO_1, 0x3 },
 142        { WM8996_LDO_2, 0x13 },
 143        { WM8996_ACCESSORY_DETECT_MODE_1, 0x4 },
 144        { WM8996_ACCESSORY_DETECT_MODE_2, 0x0 },
 145        { WM8996_HEADPHONE_DETECT_1, 0x20 },
 146        { WM8996_HEADPHONE_DETECT_2, 0x0 },
 147        { WM8996_MIC_DETECT_1, 0x7600 },
 148        { WM8996_MIC_DETECT_2, 0xbf },
 149        { WM8996_CHARGE_PUMP_1, 0x1f25 },
 150        { WM8996_CHARGE_PUMP_2, 0xab19 },
 151        { WM8996_DC_SERVO_1, 0x0 },
 152        { WM8996_DC_SERVO_3, 0x0 },
 153        { WM8996_DC_SERVO_5, 0x2a2a },
 154        { WM8996_DC_SERVO_6, 0x0 },
 155        { WM8996_DC_SERVO_7, 0x0 },
 156        { WM8996_ANALOGUE_HP_1, 0x0 },
 157        { WM8996_ANALOGUE_HP_2, 0x0 },
 158        { WM8996_CONTROL_INTERFACE_1, 0x8004 },
 159        { WM8996_WRITE_SEQUENCER_CTRL_1, 0x0 },
 160        { WM8996_WRITE_SEQUENCER_CTRL_2, 0x0 },
 161        { WM8996_AIF_CLOCKING_1, 0x0 },
 162        { WM8996_AIF_CLOCKING_2, 0x0 },
 163        { WM8996_CLOCKING_1, 0x10 },
 164        { WM8996_CLOCKING_2, 0x0 },
 165        { WM8996_AIF_RATE, 0x83 },
 166        { WM8996_FLL_CONTROL_1, 0x0 },
 167        { WM8996_FLL_CONTROL_2, 0x0 },
 168        { WM8996_FLL_CONTROL_3, 0x0 },
 169        { WM8996_FLL_CONTROL_4, 0x5dc0 },
 170        { WM8996_FLL_CONTROL_5, 0xc84 },
 171        { WM8996_FLL_EFS_1, 0x0 },
 172        { WM8996_FLL_EFS_2, 0x2 },
 173        { WM8996_AIF1_CONTROL, 0x0 },
 174        { WM8996_AIF1_BCLK, 0x0 },
 175        { WM8996_AIF1_TX_LRCLK_1, 0x80 },
 176        { WM8996_AIF1_TX_LRCLK_2, 0x8 },
 177        { WM8996_AIF1_RX_LRCLK_1, 0x80 },
 178        { WM8996_AIF1_RX_LRCLK_2, 0x0 },
 179        { WM8996_AIF1TX_DATA_CONFIGURATION_1, 0x1818 },
 180        { WM8996_AIF1TX_DATA_CONFIGURATION_2, 0 },
 181        { WM8996_AIF1RX_DATA_CONFIGURATION, 0x1818 },
 182        { WM8996_AIF1TX_CHANNEL_0_CONFIGURATION, 0x0 },
 183        { WM8996_AIF1TX_CHANNEL_1_CONFIGURATION, 0x0 },
 184        { WM8996_AIF1TX_CHANNEL_2_CONFIGURATION, 0x0 },
 185        { WM8996_AIF1TX_CHANNEL_3_CONFIGURATION, 0x0 },
 186        { WM8996_AIF1TX_CHANNEL_4_CONFIGURATION, 0x0 },
 187        { WM8996_AIF1TX_CHANNEL_5_CONFIGURATION, 0x0 },
 188        { WM8996_AIF1RX_CHANNEL_0_CONFIGURATION, 0x0 },
 189        { WM8996_AIF1RX_CHANNEL_1_CONFIGURATION, 0x0 },
 190        { WM8996_AIF1RX_CHANNEL_2_CONFIGURATION, 0x0 },
 191        { WM8996_AIF1RX_CHANNEL_3_CONFIGURATION, 0x0 },
 192        { WM8996_AIF1RX_CHANNEL_4_CONFIGURATION, 0x0 },
 193        { WM8996_AIF1RX_CHANNEL_5_CONFIGURATION, 0x0 },
 194        { WM8996_AIF1RX_MONO_CONFIGURATION, 0x0 },
 195        { WM8996_AIF1TX_TEST, 0x7 },
 196        { WM8996_AIF2_CONTROL, 0x0 },
 197        { WM8996_AIF2_BCLK, 0x0 },
 198        { WM8996_AIF2_TX_LRCLK_1, 0x80 },
 199        { WM8996_AIF2_TX_LRCLK_2, 0x8 },
 200        { WM8996_AIF2_RX_LRCLK_1, 0x80 },
 201        { WM8996_AIF2_RX_LRCLK_2, 0x0 },
 202        { WM8996_AIF2TX_DATA_CONFIGURATION_1, 0x1818 },
 203        { WM8996_AIF2RX_DATA_CONFIGURATION, 0x1818 },
 204        { WM8996_AIF2RX_DATA_CONFIGURATION, 0x0 },
 205        { WM8996_AIF2TX_CHANNEL_0_CONFIGURATION, 0x0 },
 206        { WM8996_AIF2TX_CHANNEL_1_CONFIGURATION, 0x0 },
 207        { WM8996_AIF2RX_CHANNEL_0_CONFIGURATION, 0x0 },
 208        { WM8996_AIF2RX_CHANNEL_1_CONFIGURATION, 0x0 },
 209        { WM8996_AIF2RX_MONO_CONFIGURATION, 0x0 },
 210        { WM8996_AIF2TX_TEST, 0x1 },
 211        { WM8996_DSP1_TX_LEFT_VOLUME, 0xc0 },
 212        { WM8996_DSP1_TX_RIGHT_VOLUME, 0xc0 },
 213        { WM8996_DSP1_RX_LEFT_VOLUME, 0xc0 },
 214        { WM8996_DSP1_RX_RIGHT_VOLUME, 0xc0 },
 215        { WM8996_DSP1_TX_FILTERS, 0x2000 },
 216        { WM8996_DSP1_RX_FILTERS_1, 0x200 },
 217        { WM8996_DSP1_RX_FILTERS_2, 0x10 },
 218        { WM8996_DSP1_DRC_1, 0x98 },
 219        { WM8996_DSP1_DRC_2, 0x845 },
 220        { WM8996_DSP1_RX_EQ_GAINS_1, 0x6318 },
 221        { WM8996_DSP1_RX_EQ_GAINS_2, 0x6300 },
 222        { WM8996_DSP1_RX_EQ_BAND_1_A, 0xfca },
 223        { WM8996_DSP1_RX_EQ_BAND_1_B, 0x400 },
 224        { WM8996_DSP1_RX_EQ_BAND_1_PG, 0xd8 },
 225        { WM8996_DSP1_RX_EQ_BAND_2_A, 0x1eb5 },
 226        { WM8996_DSP1_RX_EQ_BAND_2_B, 0xf145 },
 227        { WM8996_DSP1_RX_EQ_BAND_2_C, 0xb75 },
 228        { WM8996_DSP1_RX_EQ_BAND_2_PG, 0x1c5 },
 229        { WM8996_DSP1_RX_EQ_BAND_3_A, 0x1c58 },
 230        { WM8996_DSP1_RX_EQ_BAND_3_B, 0xf373 },
 231        { WM8996_DSP1_RX_EQ_BAND_3_C, 0xa54 },
 232        { WM8996_DSP1_RX_EQ_BAND_3_PG, 0x558 },
 233        { WM8996_DSP1_RX_EQ_BAND_4_A, 0x168e },
 234        { WM8996_DSP1_RX_EQ_BAND_4_B, 0xf829 },
 235        { WM8996_DSP1_RX_EQ_BAND_4_C, 0x7ad },
 236        { WM8996_DSP1_RX_EQ_BAND_4_PG, 0x1103 },
 237        { WM8996_DSP1_RX_EQ_BAND_5_A, 0x564 },
 238        { WM8996_DSP1_RX_EQ_BAND_5_B, 0x559 },
 239        { WM8996_DSP1_RX_EQ_BAND_5_PG, 0x4000 },
 240        { WM8996_DSP2_TX_LEFT_VOLUME, 0xc0 },
 241        { WM8996_DSP2_TX_RIGHT_VOLUME, 0xc0 },
 242        { WM8996_DSP2_RX_LEFT_VOLUME, 0xc0 },
 243        { WM8996_DSP2_RX_RIGHT_VOLUME, 0xc0 },
 244        { WM8996_DSP2_TX_FILTERS, 0x2000 },
 245        { WM8996_DSP2_RX_FILTERS_1, 0x200 },
 246        { WM8996_DSP2_RX_FILTERS_2, 0x10 },
 247        { WM8996_DSP2_DRC_1, 0x98 },
 248        { WM8996_DSP2_DRC_2, 0x845 },
 249        { WM8996_DSP2_RX_EQ_GAINS_1, 0x6318 },
 250        { WM8996_DSP2_RX_EQ_GAINS_2, 0x6300 },
 251        { WM8996_DSP2_RX_EQ_BAND_1_A, 0xfca },
 252        { WM8996_DSP2_RX_EQ_BAND_1_B, 0x400 },
 253        { WM8996_DSP2_RX_EQ_BAND_1_PG, 0xd8 },
 254        { WM8996_DSP2_RX_EQ_BAND_2_A, 0x1eb5 },
 255        { WM8996_DSP2_RX_EQ_BAND_2_B, 0xf145 },
 256        { WM8996_DSP2_RX_EQ_BAND_2_C, 0xb75 },
 257        { WM8996_DSP2_RX_EQ_BAND_2_PG, 0x1c5 },
 258        { WM8996_DSP2_RX_EQ_BAND_3_A, 0x1c58 },
 259        { WM8996_DSP2_RX_EQ_BAND_3_B, 0xf373 },
 260        { WM8996_DSP2_RX_EQ_BAND_3_C, 0xa54 },
 261        { WM8996_DSP2_RX_EQ_BAND_3_PG, 0x558 },
 262        { WM8996_DSP2_RX_EQ_BAND_4_A, 0x168e },
 263        { WM8996_DSP2_RX_EQ_BAND_4_B, 0xf829 },
 264        { WM8996_DSP2_RX_EQ_BAND_4_C, 0x7ad },
 265        { WM8996_DSP2_RX_EQ_BAND_4_PG, 0x1103 },
 266        { WM8996_DSP2_RX_EQ_BAND_5_A, 0x564 },
 267        { WM8996_DSP2_RX_EQ_BAND_5_B, 0x559 },
 268        { WM8996_DSP2_RX_EQ_BAND_5_PG, 0x4000 },
 269        { WM8996_DAC1_MIXER_VOLUMES, 0x0 },
 270        { WM8996_DAC1_LEFT_MIXER_ROUTING, 0x0 },
 271        { WM8996_DAC1_RIGHT_MIXER_ROUTING, 0x0 },
 272        { WM8996_DAC2_MIXER_VOLUMES, 0x0 },
 273        { WM8996_DAC2_LEFT_MIXER_ROUTING, 0x0 },
 274        { WM8996_DAC2_RIGHT_MIXER_ROUTING, 0x0 },
 275        { WM8996_DSP1_TX_LEFT_MIXER_ROUTING, 0x0 },
 276        { WM8996_DSP1_TX_RIGHT_MIXER_ROUTING, 0x0 },
 277        { WM8996_DSP2_TX_LEFT_MIXER_ROUTING, 0x0 },
 278        { WM8996_DSP2_TX_RIGHT_MIXER_ROUTING, 0x0 },
 279        { WM8996_DSP_TX_MIXER_SELECT, 0x0 },
 280        { WM8996_DAC_SOFTMUTE, 0x0 },
 281        { WM8996_OVERSAMPLING, 0xd },
 282        { WM8996_SIDETONE, 0x1040 },
 283        { WM8996_GPIO_1, 0xa101 },
 284        { WM8996_GPIO_2, 0xa101 },
 285        { WM8996_GPIO_3, 0xa101 },
 286        { WM8996_GPIO_4, 0xa101 },
 287        { WM8996_GPIO_5, 0xa101 },
 288        { WM8996_PULL_CONTROL_1, 0x0 },
 289        { WM8996_PULL_CONTROL_2, 0x140 },
 290        { WM8996_INTERRUPT_STATUS_1_MASK, 0x1f },
 291        { WM8996_INTERRUPT_STATUS_2_MASK, 0x1ecf },
 292        { WM8996_LEFT_PDM_SPEAKER, 0x0 },
 293        { WM8996_RIGHT_PDM_SPEAKER, 0x1 },
 294        { WM8996_PDM_SPEAKER_MUTE_SEQUENCE, 0x69 },
 295        { WM8996_PDM_SPEAKER_VOLUME, 0x66 },
 296};
 297
 298static const DECLARE_TLV_DB_SCALE(inpga_tlv, 0, 100, 0);
 299static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
 300static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 301static const DECLARE_TLV_DB_SCALE(out_digital_tlv, -1200, 150, 0);
 302static const DECLARE_TLV_DB_SCALE(out_tlv, -900, 75, 0);
 303static const DECLARE_TLV_DB_SCALE(spk_tlv, -900, 150, 0);
 304static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 305static const DECLARE_TLV_DB_SCALE(threedstereo_tlv, -1600, 183, 1);
 306
 307static const char *sidetone_hpf_text[] = {
 308        "2.9kHz", "1.5kHz", "735Hz", "403Hz", "196Hz", "98Hz", "49Hz"
 309};
 310
 311static SOC_ENUM_SINGLE_DECL(sidetone_hpf,
 312                            WM8996_SIDETONE, 7, sidetone_hpf_text);
 313
 314static const char *hpf_mode_text[] = {
 315        "HiFi", "Custom", "Voice"
 316};
 317
 318static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_mode,
 319                            WM8996_DSP1_TX_FILTERS, 3, hpf_mode_text);
 320
 321static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_mode,
 322                            WM8996_DSP2_TX_FILTERS, 3, hpf_mode_text);
 323
 324static const char *hpf_cutoff_text[] = {
 325        "50Hz", "75Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
 326};
 327
 328static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_cutoff,
 329                            WM8996_DSP1_TX_FILTERS, 0, hpf_cutoff_text);
 330
 331static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_cutoff,
 332                            WM8996_DSP2_TX_FILTERS, 0, hpf_cutoff_text);
 333
 334static void wm8996_set_retune_mobile(struct snd_soc_component *component, int block)
 335{
 336        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 337        struct wm8996_pdata *pdata = &wm8996->pdata;
 338        int base, best, best_val, save, i, cfg, iface;
 339
 340        if (!wm8996->num_retune_mobile_texts)
 341                return;
 342
 343        switch (block) {
 344        case 0:
 345                base = WM8996_DSP1_RX_EQ_GAINS_1;
 346                if (snd_soc_component_read32(component, WM8996_POWER_MANAGEMENT_8) &
 347                    WM8996_DSP1RX_SRC)
 348                        iface = 1;
 349                else
 350                        iface = 0;
 351                break;
 352        case 1:
 353                base = WM8996_DSP1_RX_EQ_GAINS_2;
 354                if (snd_soc_component_read32(component, WM8996_POWER_MANAGEMENT_8) &
 355                    WM8996_DSP2RX_SRC)
 356                        iface = 1;
 357                else
 358                        iface = 0;
 359                break;
 360        default:
 361                return;
 362        }
 363
 364        /* Find the version of the currently selected configuration
 365         * with the nearest sample rate. */
 366        cfg = wm8996->retune_mobile_cfg[block];
 367        best = 0;
 368        best_val = INT_MAX;
 369        for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
 370                if (strcmp(pdata->retune_mobile_cfgs[i].name,
 371                           wm8996->retune_mobile_texts[cfg]) == 0 &&
 372                    abs(pdata->retune_mobile_cfgs[i].rate
 373                        - wm8996->rx_rate[iface]) < best_val) {
 374                        best = i;
 375                        best_val = abs(pdata->retune_mobile_cfgs[i].rate
 376                                       - wm8996->rx_rate[iface]);
 377                }
 378        }
 379
 380        dev_dbg(component->dev, "ReTune Mobile %d %s/%dHz for %dHz sample rate\n",
 381                block,
 382                pdata->retune_mobile_cfgs[best].name,
 383                pdata->retune_mobile_cfgs[best].rate,
 384                wm8996->rx_rate[iface]);
 385
 386        /* The EQ will be disabled while reconfiguring it, remember the
 387         * current configuration. 
 388         */
 389        save = snd_soc_component_read32(component, base);
 390        save &= WM8996_DSP1RX_EQ_ENA;
 391
 392        for (i = 0; i < ARRAY_SIZE(pdata->retune_mobile_cfgs[best].regs); i++)
 393                snd_soc_component_update_bits(component, base + i, 0xffff,
 394                                    pdata->retune_mobile_cfgs[best].regs[i]);
 395
 396        snd_soc_component_update_bits(component, base, WM8996_DSP1RX_EQ_ENA, save);
 397}
 398
 399/* Icky as hell but saves code duplication */
 400static int wm8996_get_retune_mobile_block(const char *name)
 401{
 402        if (strcmp(name, "DSP1 EQ Mode") == 0)
 403                return 0;
 404        if (strcmp(name, "DSP2 EQ Mode") == 0)
 405                return 1;
 406        return -EINVAL;
 407}
 408
 409static int wm8996_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
 410                                         struct snd_ctl_elem_value *ucontrol)
 411{
 412        struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 413        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 414        struct wm8996_pdata *pdata = &wm8996->pdata;
 415        int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
 416        int value = ucontrol->value.enumerated.item[0];
 417
 418        if (block < 0)
 419                return block;
 420
 421        if (value >= pdata->num_retune_mobile_cfgs)
 422                return -EINVAL;
 423
 424        wm8996->retune_mobile_cfg[block] = value;
 425
 426        wm8996_set_retune_mobile(component, block);
 427
 428        return 0;
 429}
 430
 431static int wm8996_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
 432                                         struct snd_ctl_elem_value *ucontrol)
 433{
 434        struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 435        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 436        int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
 437
 438        if (block < 0)
 439                return block;
 440        ucontrol->value.enumerated.item[0] = wm8996->retune_mobile_cfg[block];
 441
 442        return 0;
 443}
 444
 445static const struct snd_kcontrol_new wm8996_snd_controls[] = {
 446SOC_DOUBLE_R_TLV("Capture Volume", WM8996_LEFT_LINE_INPUT_VOLUME,
 447                 WM8996_RIGHT_LINE_INPUT_VOLUME, 0, 31, 0, inpga_tlv),
 448SOC_DOUBLE_R("Capture ZC Switch", WM8996_LEFT_LINE_INPUT_VOLUME,
 449             WM8996_RIGHT_LINE_INPUT_VOLUME, 5, 1, 0),
 450
 451SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8996_DAC1_MIXER_VOLUMES,
 452               0, 5, 24, 0, sidetone_tlv),
 453SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8996_DAC2_MIXER_VOLUMES,
 454               0, 5, 24, 0, sidetone_tlv),
 455SOC_SINGLE("Sidetone LPF Switch", WM8996_SIDETONE, 12, 1, 0),
 456SOC_ENUM("Sidetone HPF Cut-off", sidetone_hpf),
 457SOC_SINGLE("Sidetone HPF Switch", WM8996_SIDETONE, 6, 1, 0),
 458
 459SOC_DOUBLE_R_TLV("DSP1 Capture Volume", WM8996_DSP1_TX_LEFT_VOLUME,
 460                 WM8996_DSP1_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
 461SOC_DOUBLE_R_TLV("DSP2 Capture Volume", WM8996_DSP2_TX_LEFT_VOLUME,
 462                 WM8996_DSP2_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
 463
 464SOC_SINGLE("DSP1 Capture Notch Filter Switch", WM8996_DSP1_TX_FILTERS,
 465           13, 1, 0),
 466SOC_DOUBLE("DSP1 Capture HPF Switch", WM8996_DSP1_TX_FILTERS, 12, 11, 1, 0),
 467SOC_ENUM("DSP1 Capture HPF Mode", dsp1tx_hpf_mode),
 468SOC_ENUM("DSP1 Capture HPF Cutoff", dsp1tx_hpf_cutoff),
 469
 470SOC_SINGLE("DSP2 Capture Notch Filter Switch", WM8996_DSP2_TX_FILTERS,
 471           13, 1, 0),
 472SOC_DOUBLE("DSP2 Capture HPF Switch", WM8996_DSP2_TX_FILTERS, 12, 11, 1, 0),
 473SOC_ENUM("DSP2 Capture HPF Mode", dsp2tx_hpf_mode),
 474SOC_ENUM("DSP2 Capture HPF Cutoff", dsp2tx_hpf_cutoff),
 475
 476SOC_DOUBLE_R_TLV("DSP1 Playback Volume", WM8996_DSP1_RX_LEFT_VOLUME,
 477                 WM8996_DSP1_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
 478SOC_SINGLE("DSP1 Playback Switch", WM8996_DSP1_RX_FILTERS_1, 9, 1, 1),
 479
 480SOC_DOUBLE_R_TLV("DSP2 Playback Volume", WM8996_DSP2_RX_LEFT_VOLUME,
 481                 WM8996_DSP2_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
 482SOC_SINGLE("DSP2 Playback Switch", WM8996_DSP2_RX_FILTERS_1, 9, 1, 1),
 483
 484SOC_DOUBLE_R_TLV("DAC1 Volume", WM8996_DAC1_LEFT_VOLUME,
 485                 WM8996_DAC1_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
 486SOC_DOUBLE_R("DAC1 Switch", WM8996_DAC1_LEFT_VOLUME,
 487             WM8996_DAC1_RIGHT_VOLUME, 9, 1, 1),
 488
 489SOC_DOUBLE_R_TLV("DAC2 Volume", WM8996_DAC2_LEFT_VOLUME,
 490                 WM8996_DAC2_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
 491SOC_DOUBLE_R("DAC2 Switch", WM8996_DAC2_LEFT_VOLUME,
 492             WM8996_DAC2_RIGHT_VOLUME, 9, 1, 1),
 493
 494SOC_SINGLE("Speaker High Performance Switch", WM8996_OVERSAMPLING, 3, 1, 0),
 495SOC_SINGLE("DMIC High Performance Switch", WM8996_OVERSAMPLING, 2, 1, 0),
 496SOC_SINGLE("ADC High Performance Switch", WM8996_OVERSAMPLING, 1, 1, 0),
 497SOC_SINGLE("DAC High Performance Switch", WM8996_OVERSAMPLING, 0, 1, 0),
 498
 499SOC_SINGLE("DAC Soft Mute Switch", WM8996_DAC_SOFTMUTE, 1, 1, 0),
 500SOC_SINGLE("DAC Slow Soft Mute Switch", WM8996_DAC_SOFTMUTE, 0, 1, 0),
 501
 502SOC_SINGLE("DSP1 3D Stereo Switch", WM8996_DSP1_RX_FILTERS_2, 8, 1, 0),
 503SOC_SINGLE("DSP2 3D Stereo Switch", WM8996_DSP2_RX_FILTERS_2, 8, 1, 0),
 504
 505SOC_SINGLE_TLV("DSP1 3D Stereo Volume", WM8996_DSP1_RX_FILTERS_2, 10, 15,
 506                0, threedstereo_tlv),
 507SOC_SINGLE_TLV("DSP2 3D Stereo Volume", WM8996_DSP2_RX_FILTERS_2, 10, 15,
 508                0, threedstereo_tlv),
 509
 510SOC_DOUBLE_TLV("Digital Output 1 Volume", WM8996_DAC1_HPOUT1_VOLUME, 0, 4,
 511               8, 0, out_digital_tlv),
 512SOC_DOUBLE_TLV("Digital Output 2 Volume", WM8996_DAC2_HPOUT2_VOLUME, 0, 4,
 513               8, 0, out_digital_tlv),
 514
 515SOC_DOUBLE_R_TLV("Output 1 Volume", WM8996_OUTPUT1_LEFT_VOLUME,
 516                 WM8996_OUTPUT1_RIGHT_VOLUME, 0, 12, 0, out_tlv),
 517SOC_DOUBLE_R("Output 1 ZC Switch",  WM8996_OUTPUT1_LEFT_VOLUME,
 518             WM8996_OUTPUT1_RIGHT_VOLUME, 7, 1, 0),
 519
 520SOC_DOUBLE_R_TLV("Output 2 Volume", WM8996_OUTPUT2_LEFT_VOLUME,
 521                 WM8996_OUTPUT2_RIGHT_VOLUME, 0, 12, 0, out_tlv),
 522SOC_DOUBLE_R("Output 2 ZC Switch",  WM8996_OUTPUT2_LEFT_VOLUME,
 523             WM8996_OUTPUT2_RIGHT_VOLUME, 7, 1, 0),
 524
 525SOC_DOUBLE_TLV("Speaker Volume", WM8996_PDM_SPEAKER_VOLUME, 0, 4, 8, 0,
 526               spk_tlv),
 527SOC_DOUBLE_R("Speaker Switch", WM8996_LEFT_PDM_SPEAKER,
 528             WM8996_RIGHT_PDM_SPEAKER, 3, 1, 1),
 529SOC_DOUBLE_R("Speaker ZC Switch", WM8996_LEFT_PDM_SPEAKER,
 530             WM8996_RIGHT_PDM_SPEAKER, 2, 1, 0),
 531
 532SOC_SINGLE("DSP1 EQ Switch", WM8996_DSP1_RX_EQ_GAINS_1, 0, 1, 0),
 533SOC_SINGLE("DSP2 EQ Switch", WM8996_DSP2_RX_EQ_GAINS_1, 0, 1, 0),
 534
 535SOC_SINGLE("DSP1 DRC TXL Switch", WM8996_DSP1_DRC_1, 0, 1, 0),
 536SOC_SINGLE("DSP1 DRC TXR Switch", WM8996_DSP1_DRC_1, 1, 1, 0),
 537SOC_SINGLE("DSP1 DRC RX Switch", WM8996_DSP1_DRC_1, 2, 1, 0),
 538SND_SOC_BYTES_MASK("DSP1 DRC", WM8996_DSP1_DRC_1, 5,
 539                   WM8996_DSP1RX_DRC_ENA | WM8996_DSP1TXL_DRC_ENA |
 540                   WM8996_DSP1TXR_DRC_ENA),
 541
 542SOC_SINGLE("DSP2 DRC TXL Switch", WM8996_DSP2_DRC_1, 0, 1, 0),
 543SOC_SINGLE("DSP2 DRC TXR Switch", WM8996_DSP2_DRC_1, 1, 1, 0),
 544SOC_SINGLE("DSP2 DRC RX Switch", WM8996_DSP2_DRC_1, 2, 1, 0),
 545SND_SOC_BYTES_MASK("DSP2 DRC", WM8996_DSP2_DRC_1, 5,
 546                   WM8996_DSP2RX_DRC_ENA | WM8996_DSP2TXL_DRC_ENA |
 547                   WM8996_DSP2TXR_DRC_ENA),
 548};
 549
 550static const struct snd_kcontrol_new wm8996_eq_controls[] = {
 551SOC_SINGLE_TLV("DSP1 EQ B1 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 11, 31, 0,
 552               eq_tlv),
 553SOC_SINGLE_TLV("DSP1 EQ B2 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 6, 31, 0,
 554               eq_tlv),
 555SOC_SINGLE_TLV("DSP1 EQ B3 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 1, 31, 0,
 556               eq_tlv),
 557SOC_SINGLE_TLV("DSP1 EQ B4 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 11, 31, 0,
 558               eq_tlv),
 559SOC_SINGLE_TLV("DSP1 EQ B5 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 6, 31, 0,
 560               eq_tlv),
 561
 562SOC_SINGLE_TLV("DSP2 EQ B1 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 11, 31, 0,
 563               eq_tlv),
 564SOC_SINGLE_TLV("DSP2 EQ B2 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 6, 31, 0,
 565               eq_tlv),
 566SOC_SINGLE_TLV("DSP2 EQ B3 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 1, 31, 0,
 567               eq_tlv),
 568SOC_SINGLE_TLV("DSP2 EQ B4 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 11, 31, 0,
 569               eq_tlv),
 570SOC_SINGLE_TLV("DSP2 EQ B5 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 6, 31, 0,
 571               eq_tlv),
 572};
 573
 574static void wm8996_bg_enable(struct snd_soc_component *component)
 575{
 576        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 577
 578        wm8996->bg_ena++;
 579        if (wm8996->bg_ena == 1) {
 580                snd_soc_component_update_bits(component, WM8996_POWER_MANAGEMENT_1,
 581                                    WM8996_BG_ENA, WM8996_BG_ENA);
 582                msleep(2);
 583        }
 584}
 585
 586static void wm8996_bg_disable(struct snd_soc_component *component)
 587{
 588        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 589
 590        wm8996->bg_ena--;
 591        if (!wm8996->bg_ena)
 592                snd_soc_component_update_bits(component, WM8996_POWER_MANAGEMENT_1,
 593                                    WM8996_BG_ENA, 0);
 594}
 595
 596static int bg_event(struct snd_soc_dapm_widget *w,
 597                    struct snd_kcontrol *kcontrol, int event)
 598{
 599        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 600        int ret = 0;
 601
 602        switch (event) {
 603        case SND_SOC_DAPM_PRE_PMU:
 604                wm8996_bg_enable(component);
 605                break;
 606        case SND_SOC_DAPM_POST_PMD:
 607                wm8996_bg_disable(component);
 608                break;
 609        default:
 610                WARN(1, "Invalid event %d\n", event);
 611                ret = -EINVAL;
 612        }
 613
 614        return ret;
 615}
 616
 617static int cp_event(struct snd_soc_dapm_widget *w,
 618                    struct snd_kcontrol *kcontrol, int event)
 619{
 620        switch (event) {
 621        case SND_SOC_DAPM_POST_PMU:
 622                msleep(5);
 623                break;
 624        default:
 625                WARN(1, "Invalid event %d\n", event);
 626        }
 627
 628        return 0;
 629}
 630
 631static int rmv_short_event(struct snd_soc_dapm_widget *w,
 632                           struct snd_kcontrol *kcontrol, int event)
 633{
 634        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 635        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 636
 637        /* Record which outputs we enabled */
 638        switch (event) {
 639        case SND_SOC_DAPM_PRE_PMD:
 640                wm8996->hpout_pending &= ~w->shift;
 641                break;
 642        case SND_SOC_DAPM_PRE_PMU:
 643                wm8996->hpout_pending |= w->shift;
 644                break;
 645        default:
 646                WARN(1, "Invalid event %d\n", event);
 647                return -EINVAL;
 648        }
 649
 650        return 0;
 651}
 652
 653static void wait_for_dc_servo(struct snd_soc_component *component, u16 mask)
 654{
 655        struct i2c_client *i2c = to_i2c_client(component->dev);
 656        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 657        int ret;
 658        unsigned long timeout = 200;
 659
 660        snd_soc_component_write(component, WM8996_DC_SERVO_2, mask);
 661
 662        /* Use the interrupt if possible */
 663        do {
 664                if (i2c->irq) {
 665                        timeout = wait_for_completion_timeout(&wm8996->dcs_done,
 666                                                              msecs_to_jiffies(200));
 667                        if (timeout == 0)
 668                                dev_err(component->dev, "DC servo timed out\n");
 669
 670                } else {
 671                        msleep(1);
 672                        timeout--;
 673                }
 674
 675                ret = snd_soc_component_read32(component, WM8996_DC_SERVO_2);
 676                dev_dbg(component->dev, "DC servo state: %x\n", ret);
 677        } while (timeout && ret & mask);
 678
 679        if (timeout == 0)
 680                dev_err(component->dev, "DC servo timed out for %x\n", mask);
 681        else
 682                dev_dbg(component->dev, "DC servo complete for %x\n", mask);
 683}
 684
 685static void wm8996_seq_notifier(struct snd_soc_component *component,
 686                                enum snd_soc_dapm_type event, int subseq)
 687{
 688        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 689        u16 val, mask;
 690
 691        /* Complete any pending DC servo starts */
 692        if (wm8996->dcs_pending) {
 693                dev_dbg(component->dev, "Starting DC servo for %x\n",
 694                        wm8996->dcs_pending);
 695
 696                /* Trigger a startup sequence */
 697                wait_for_dc_servo(component, wm8996->dcs_pending
 698                                         << WM8996_DCS_TRIG_STARTUP_0_SHIFT);
 699
 700                wm8996->dcs_pending = 0;
 701        }
 702
 703        if (wm8996->hpout_pending != wm8996->hpout_ena) {
 704                dev_dbg(component->dev, "Applying RMV_SHORTs %x->%x\n",
 705                        wm8996->hpout_ena, wm8996->hpout_pending);
 706
 707                val = 0;
 708                mask = 0;
 709                if (wm8996->hpout_pending & HPOUT1L) {
 710                        val |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP;
 711                        mask |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP;
 712                } else {
 713                        mask |= WM8996_HPOUT1L_RMV_SHORT |
 714                                WM8996_HPOUT1L_OUTP |
 715                                WM8996_HPOUT1L_DLY;
 716                }
 717
 718                if (wm8996->hpout_pending & HPOUT1R) {
 719                        val |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP;
 720                        mask |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP;
 721                } else {
 722                        mask |= WM8996_HPOUT1R_RMV_SHORT |
 723                                WM8996_HPOUT1R_OUTP |
 724                                WM8996_HPOUT1R_DLY;
 725                }
 726
 727                snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1, mask, val);
 728
 729                val = 0;
 730                mask = 0;
 731                if (wm8996->hpout_pending & HPOUT2L) {
 732                        val |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP;
 733                        mask |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP;
 734                } else {
 735                        mask |= WM8996_HPOUT2L_RMV_SHORT |
 736                                WM8996_HPOUT2L_OUTP |
 737                                WM8996_HPOUT2L_DLY;
 738                }
 739
 740                if (wm8996->hpout_pending & HPOUT2R) {
 741                        val |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP;
 742                        mask |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP;
 743                } else {
 744                        mask |= WM8996_HPOUT2R_RMV_SHORT |
 745                                WM8996_HPOUT2R_OUTP |
 746                                WM8996_HPOUT2R_DLY;
 747                }
 748
 749                snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_2, mask, val);
 750
 751                wm8996->hpout_ena = wm8996->hpout_pending;
 752        }
 753}
 754
 755static int dcs_start(struct snd_soc_dapm_widget *w,
 756                     struct snd_kcontrol *kcontrol, int event)
 757{
 758        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 759        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
 760
 761        switch (event) {
 762        case SND_SOC_DAPM_POST_PMU:
 763                wm8996->dcs_pending |= 1 << w->shift;
 764                break;
 765        default:
 766                WARN(1, "Invalid event %d\n", event);
 767                return -EINVAL;
 768        }
 769
 770        return 0;
 771}
 772
 773static const char *sidetone_text[] = {
 774        "IN1", "IN2",
 775};
 776
 777static SOC_ENUM_SINGLE_DECL(left_sidetone_enum,
 778                            WM8996_SIDETONE, 0, sidetone_text);
 779
 780static const struct snd_kcontrol_new left_sidetone =
 781        SOC_DAPM_ENUM("Left Sidetone", left_sidetone_enum);
 782
 783static SOC_ENUM_SINGLE_DECL(right_sidetone_enum,
 784                            WM8996_SIDETONE, 1, sidetone_text);
 785
 786static const struct snd_kcontrol_new right_sidetone =
 787        SOC_DAPM_ENUM("Right Sidetone", right_sidetone_enum);
 788
 789static const char *spk_text[] = {
 790        "DAC1L", "DAC1R", "DAC2L", "DAC2R"
 791};
 792
 793static SOC_ENUM_SINGLE_DECL(spkl_enum,
 794                            WM8996_LEFT_PDM_SPEAKER, 0, spk_text);
 795
 796static const struct snd_kcontrol_new spkl_mux =
 797        SOC_DAPM_ENUM("SPKL", spkl_enum);
 798
 799static SOC_ENUM_SINGLE_DECL(spkr_enum,
 800                            WM8996_RIGHT_PDM_SPEAKER, 0, spk_text);
 801
 802static const struct snd_kcontrol_new spkr_mux =
 803        SOC_DAPM_ENUM("SPKR", spkr_enum);
 804
 805static const char *dsp1rx_text[] = {
 806        "AIF1", "AIF2"
 807};
 808
 809static SOC_ENUM_SINGLE_DECL(dsp1rx_enum,
 810                            WM8996_POWER_MANAGEMENT_8, 0, dsp1rx_text);
 811
 812static const struct snd_kcontrol_new dsp1rx =
 813        SOC_DAPM_ENUM("DSP1RX", dsp1rx_enum);
 814
 815static const char *dsp2rx_text[] = {
 816         "AIF2", "AIF1"
 817};
 818
 819static SOC_ENUM_SINGLE_DECL(dsp2rx_enum,
 820                            WM8996_POWER_MANAGEMENT_8, 4, dsp2rx_text);
 821
 822static const struct snd_kcontrol_new dsp2rx =
 823        SOC_DAPM_ENUM("DSP2RX", dsp2rx_enum);
 824
 825static const char *aif2tx_text[] = {
 826        "DSP2", "DSP1", "AIF1"
 827};
 828
 829static SOC_ENUM_SINGLE_DECL(aif2tx_enum,
 830                            WM8996_POWER_MANAGEMENT_8, 6, aif2tx_text);
 831
 832static const struct snd_kcontrol_new aif2tx =
 833        SOC_DAPM_ENUM("AIF2TX", aif2tx_enum);
 834
 835static const char *inmux_text[] = {
 836        "ADC", "DMIC1", "DMIC2"
 837};
 838
 839static SOC_ENUM_SINGLE_DECL(in1_enum,
 840                            WM8996_POWER_MANAGEMENT_7, 0, inmux_text);
 841
 842static const struct snd_kcontrol_new in1_mux =
 843        SOC_DAPM_ENUM("IN1 Mux", in1_enum);
 844
 845static SOC_ENUM_SINGLE_DECL(in2_enum,
 846                            WM8996_POWER_MANAGEMENT_7, 4, inmux_text);
 847
 848static const struct snd_kcontrol_new in2_mux =
 849        SOC_DAPM_ENUM("IN2 Mux", in2_enum);
 850
 851static const struct snd_kcontrol_new dac2r_mix[] = {
 852SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING,
 853                5, 1, 0),
 854SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING,
 855                4, 1, 0),
 856SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 1, 1, 0),
 857SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 0, 1, 0),
 858};
 859
 860static const struct snd_kcontrol_new dac2l_mix[] = {
 861SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING,
 862                5, 1, 0),
 863SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING,
 864                4, 1, 0),
 865SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 1, 1, 0),
 866SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 0, 1, 0),
 867};
 868
 869static const struct snd_kcontrol_new dac1r_mix[] = {
 870SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING,
 871                5, 1, 0),
 872SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING,
 873                4, 1, 0),
 874SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 1, 1, 0),
 875SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 0, 1, 0),
 876};
 877
 878static const struct snd_kcontrol_new dac1l_mix[] = {
 879SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING,
 880                5, 1, 0),
 881SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING,
 882                4, 1, 0),
 883SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 1, 1, 0),
 884SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 0, 1, 0),
 885};
 886
 887static const struct snd_kcontrol_new dsp1txl[] = {
 888SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING,
 889                1, 1, 0),
 890SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING,
 891                0, 1, 0),
 892};
 893
 894static const struct snd_kcontrol_new dsp1txr[] = {
 895SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING,
 896                1, 1, 0),
 897SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING,
 898                0, 1, 0),
 899};
 900
 901static const struct snd_kcontrol_new dsp2txl[] = {
 902SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING,
 903                1, 1, 0),
 904SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING,
 905                0, 1, 0),
 906};
 907
 908static const struct snd_kcontrol_new dsp2txr[] = {
 909SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING,
 910                1, 1, 0),
 911SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING,
 912                0, 1, 0),
 913};
 914
 915
 916static const struct snd_soc_dapm_widget wm8996_dapm_widgets[] = {
 917SND_SOC_DAPM_INPUT("IN1LN"),
 918SND_SOC_DAPM_INPUT("IN1LP"),
 919SND_SOC_DAPM_INPUT("IN1RN"),
 920SND_SOC_DAPM_INPUT("IN1RP"),
 921
 922SND_SOC_DAPM_INPUT("IN2LN"),
 923SND_SOC_DAPM_INPUT("IN2LP"),
 924SND_SOC_DAPM_INPUT("IN2RN"),
 925SND_SOC_DAPM_INPUT("IN2RP"),
 926
 927SND_SOC_DAPM_INPUT("DMIC1DAT"),
 928SND_SOC_DAPM_INPUT("DMIC2DAT"),
 929
 930SND_SOC_DAPM_REGULATOR_SUPPLY("CPVDD", 20, 0),
 931SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, WM8996_AIF_CLOCKING_1, 0, 0, NULL, 0),
 932SND_SOC_DAPM_SUPPLY_S("SYSDSPCLK", 2, WM8996_CLOCKING_1, 1, 0, NULL, 0),
 933SND_SOC_DAPM_SUPPLY_S("AIFCLK", 2, WM8996_CLOCKING_1, 2, 0, NULL, 0),
 934SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8996_CHARGE_PUMP_1, 15, 0, cp_event,
 935                      SND_SOC_DAPM_POST_PMU),
 936SND_SOC_DAPM_SUPPLY("Bandgap", SND_SOC_NOPM, 0, 0, bg_event,
 937                    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 938SND_SOC_DAPM_SUPPLY("LDO2", WM8996_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
 939SND_SOC_DAPM_SUPPLY("MICB1 Audio", WM8996_MICBIAS_1, 4, 1, NULL, 0),
 940SND_SOC_DAPM_SUPPLY("MICB2 Audio", WM8996_MICBIAS_2, 4, 1, NULL, 0),
 941SND_SOC_DAPM_MICBIAS("MICB2", WM8996_POWER_MANAGEMENT_1, 9, 0),
 942SND_SOC_DAPM_MICBIAS("MICB1", WM8996_POWER_MANAGEMENT_1, 8, 0),
 943
 944SND_SOC_DAPM_PGA("IN1L PGA", WM8996_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
 945SND_SOC_DAPM_PGA("IN1R PGA", WM8996_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
 946
 947SND_SOC_DAPM_MUX("IN1L Mux", WM8996_POWER_MANAGEMENT_7, 2, 0, &in1_mux),
 948SND_SOC_DAPM_MUX("IN1R Mux", WM8996_POWER_MANAGEMENT_7, 3, 0, &in1_mux),
 949SND_SOC_DAPM_MUX("IN2L Mux", WM8996_POWER_MANAGEMENT_7, 6, 0, &in2_mux),
 950SND_SOC_DAPM_MUX("IN2R Mux", WM8996_POWER_MANAGEMENT_7, 7, 0, &in2_mux),
 951
 952SND_SOC_DAPM_SUPPLY("DMIC2", WM8996_POWER_MANAGEMENT_7, 9, 0, NULL, 0),
 953SND_SOC_DAPM_SUPPLY("DMIC1", WM8996_POWER_MANAGEMENT_7, 8, 0, NULL, 0),
 954
 955SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8996_POWER_MANAGEMENT_3, 5, 0),
 956SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8996_POWER_MANAGEMENT_3, 4, 0),
 957SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8996_POWER_MANAGEMENT_3, 3, 0),
 958SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8996_POWER_MANAGEMENT_3, 2, 0),
 959
 960SND_SOC_DAPM_ADC("ADCL", NULL, WM8996_POWER_MANAGEMENT_3, 1, 0),
 961SND_SOC_DAPM_ADC("ADCR", NULL, WM8996_POWER_MANAGEMENT_3, 0, 0),
 962
 963SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &left_sidetone),
 964SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &right_sidetone),
 965
 966SND_SOC_DAPM_AIF_IN("DSP2RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 11, 0),
 967SND_SOC_DAPM_AIF_IN("DSP2RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 10, 0),
 968SND_SOC_DAPM_AIF_IN("DSP1RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 9, 0),
 969SND_SOC_DAPM_AIF_IN("DSP1RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 8, 0),
 970
 971SND_SOC_DAPM_MIXER("DSP2TXL", WM8996_POWER_MANAGEMENT_5, 11, 0,
 972                   dsp2txl, ARRAY_SIZE(dsp2txl)),
 973SND_SOC_DAPM_MIXER("DSP2TXR", WM8996_POWER_MANAGEMENT_5, 10, 0,
 974                   dsp2txr, ARRAY_SIZE(dsp2txr)),
 975SND_SOC_DAPM_MIXER("DSP1TXL", WM8996_POWER_MANAGEMENT_5, 9, 0,
 976                   dsp1txl, ARRAY_SIZE(dsp1txl)),
 977SND_SOC_DAPM_MIXER("DSP1TXR", WM8996_POWER_MANAGEMENT_5, 8, 0,
 978                   dsp1txr, ARRAY_SIZE(dsp1txr)),
 979
 980SND_SOC_DAPM_MIXER("DAC2L Mixer", SND_SOC_NOPM, 0, 0,
 981                   dac2l_mix, ARRAY_SIZE(dac2l_mix)),
 982SND_SOC_DAPM_MIXER("DAC2R Mixer", SND_SOC_NOPM, 0, 0,
 983                   dac2r_mix, ARRAY_SIZE(dac2r_mix)),
 984SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0,
 985                   dac1l_mix, ARRAY_SIZE(dac1l_mix)),
 986SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0,
 987                   dac1r_mix, ARRAY_SIZE(dac1r_mix)),
 988
 989SND_SOC_DAPM_DAC("DAC2L", NULL, WM8996_POWER_MANAGEMENT_5, 3, 0),
 990SND_SOC_DAPM_DAC("DAC2R", NULL, WM8996_POWER_MANAGEMENT_5, 2, 0),
 991SND_SOC_DAPM_DAC("DAC1L", NULL, WM8996_POWER_MANAGEMENT_5, 1, 0),
 992SND_SOC_DAPM_DAC("DAC1R", NULL, WM8996_POWER_MANAGEMENT_5, 0, 0),
 993
 994SND_SOC_DAPM_AIF_IN("AIF2RX1", NULL, 0, WM8996_POWER_MANAGEMENT_4, 9, 0),
 995SND_SOC_DAPM_AIF_IN("AIF2RX0", NULL, 1, WM8996_POWER_MANAGEMENT_4, 8, 0),
 996
 997SND_SOC_DAPM_AIF_OUT("AIF2TX1", NULL, 0, WM8996_POWER_MANAGEMENT_6, 9, 0),
 998SND_SOC_DAPM_AIF_OUT("AIF2TX0", NULL, 1, WM8996_POWER_MANAGEMENT_6, 8, 0),
 999
1000SND_SOC_DAPM_AIF_IN("AIF1RX5", NULL, 5, WM8996_POWER_MANAGEMENT_4, 5, 0),
1001SND_SOC_DAPM_AIF_IN("AIF1RX4", NULL, 4, WM8996_POWER_MANAGEMENT_4, 4, 0),
1002SND_SOC_DAPM_AIF_IN("AIF1RX3", NULL, 3, WM8996_POWER_MANAGEMENT_4, 3, 0),
1003SND_SOC_DAPM_AIF_IN("AIF1RX2", NULL, 2, WM8996_POWER_MANAGEMENT_4, 2, 0),
1004SND_SOC_DAPM_AIF_IN("AIF1RX1", NULL, 1, WM8996_POWER_MANAGEMENT_4, 1, 0),
1005SND_SOC_DAPM_AIF_IN("AIF1RX0", NULL, 0, WM8996_POWER_MANAGEMENT_4, 0, 0),
1006
1007SND_SOC_DAPM_AIF_OUT("AIF1TX5", NULL, 5, WM8996_POWER_MANAGEMENT_6, 5, 0),
1008SND_SOC_DAPM_AIF_OUT("AIF1TX4", NULL, 4, WM8996_POWER_MANAGEMENT_6, 4, 0),
1009SND_SOC_DAPM_AIF_OUT("AIF1TX3", NULL, 3, WM8996_POWER_MANAGEMENT_6, 3, 0),
1010SND_SOC_DAPM_AIF_OUT("AIF1TX2", NULL, 2, WM8996_POWER_MANAGEMENT_6, 2, 0),
1011SND_SOC_DAPM_AIF_OUT("AIF1TX1", NULL, 1, WM8996_POWER_MANAGEMENT_6, 1, 0),
1012SND_SOC_DAPM_AIF_OUT("AIF1TX0", NULL, 0, WM8996_POWER_MANAGEMENT_6, 0, 0),
1013
1014/* We route as stereo pairs so define some dummy widgets to squash
1015 * things down for now.  RXA = 0,1, RXB = 2,3 and so on */
1016SND_SOC_DAPM_PGA("AIF1RXA", SND_SOC_NOPM, 0, 0, NULL, 0),
1017SND_SOC_DAPM_PGA("AIF1RXB", SND_SOC_NOPM, 0, 0, NULL, 0),
1018SND_SOC_DAPM_PGA("AIF1RXC", SND_SOC_NOPM, 0, 0, NULL, 0),
1019SND_SOC_DAPM_PGA("AIF2RX", SND_SOC_NOPM, 0, 0, NULL, 0),
1020SND_SOC_DAPM_PGA("DSP2TX", SND_SOC_NOPM, 0, 0, NULL, 0),
1021
1022SND_SOC_DAPM_MUX("DSP1RX", SND_SOC_NOPM, 0, 0, &dsp1rx),
1023SND_SOC_DAPM_MUX("DSP2RX", SND_SOC_NOPM, 0, 0, &dsp2rx),
1024SND_SOC_DAPM_MUX("AIF2TX", SND_SOC_NOPM, 0, 0, &aif2tx),
1025
1026SND_SOC_DAPM_MUX("SPKL", SND_SOC_NOPM, 0, 0, &spkl_mux),
1027SND_SOC_DAPM_MUX("SPKR", SND_SOC_NOPM, 0, 0, &spkr_mux),
1028SND_SOC_DAPM_PGA("SPKL PGA", WM8996_LEFT_PDM_SPEAKER, 4, 0, NULL, 0),
1029SND_SOC_DAPM_PGA("SPKR PGA", WM8996_RIGHT_PDM_SPEAKER, 4, 0, NULL, 0),
1030
1031SND_SOC_DAPM_PGA_S("HPOUT2L PGA", 0, WM8996_POWER_MANAGEMENT_1, 7, 0, NULL, 0),
1032SND_SOC_DAPM_PGA_S("HPOUT2L_DLY", 1, WM8996_ANALOGUE_HP_2, 5, 0, NULL, 0),
1033SND_SOC_DAPM_PGA_S("HPOUT2L_DCS", 2, WM8996_DC_SERVO_1, 2, 0, dcs_start,
1034                   SND_SOC_DAPM_POST_PMU),
1035SND_SOC_DAPM_PGA_S("HPOUT2L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2L, 0,
1036                   rmv_short_event,
1037                   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1038
1039SND_SOC_DAPM_PGA_S("HPOUT2R PGA", 0, WM8996_POWER_MANAGEMENT_1, 6, 0,NULL, 0),
1040SND_SOC_DAPM_PGA_S("HPOUT2R_DLY", 1, WM8996_ANALOGUE_HP_2, 1, 0, NULL, 0),
1041SND_SOC_DAPM_PGA_S("HPOUT2R_DCS", 2, WM8996_DC_SERVO_1, 3, 0, dcs_start,
1042                   SND_SOC_DAPM_POST_PMU),
1043SND_SOC_DAPM_PGA_S("HPOUT2R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2R, 0,
1044                   rmv_short_event,
1045                   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1046
1047SND_SOC_DAPM_PGA_S("HPOUT1L PGA", 0, WM8996_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
1048SND_SOC_DAPM_PGA_S("HPOUT1L_DLY", 1, WM8996_ANALOGUE_HP_1, 5, 0, NULL, 0),
1049SND_SOC_DAPM_PGA_S("HPOUT1L_DCS", 2, WM8996_DC_SERVO_1, 0, 0, dcs_start,
1050                   SND_SOC_DAPM_POST_PMU),
1051SND_SOC_DAPM_PGA_S("HPOUT1L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1L, 0,
1052                   rmv_short_event,
1053                   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1054
1055SND_SOC_DAPM_PGA_S("HPOUT1R PGA", 0, WM8996_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
1056SND_SOC_DAPM_PGA_S("HPOUT1R_DLY", 1, WM8996_ANALOGUE_HP_1, 1, 0, NULL, 0),
1057SND_SOC_DAPM_PGA_S("HPOUT1R_DCS", 2, WM8996_DC_SERVO_1, 1, 0, dcs_start,
1058                   SND_SOC_DAPM_POST_PMU),
1059SND_SOC_DAPM_PGA_S("HPOUT1R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1R, 0,
1060                   rmv_short_event,
1061                   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1062
1063SND_SOC_DAPM_OUTPUT("HPOUT1L"),
1064SND_SOC_DAPM_OUTPUT("HPOUT1R"),
1065SND_SOC_DAPM_OUTPUT("HPOUT2L"),
1066SND_SOC_DAPM_OUTPUT("HPOUT2R"),
1067SND_SOC_DAPM_OUTPUT("SPKDAT"),
1068};
1069
1070static const struct snd_soc_dapm_route wm8996_dapm_routes[] = {
1071        { "AIFCLK", NULL, "SYSCLK" },
1072        { "SYSDSPCLK", NULL, "SYSCLK" },
1073        { "Charge Pump", NULL, "SYSCLK" },
1074        { "Charge Pump", NULL, "CPVDD" },
1075
1076        { "MICB1", NULL, "LDO2" },
1077        { "MICB1", NULL, "MICB1 Audio" },
1078        { "MICB1", NULL, "Bandgap" },
1079        { "MICB2", NULL, "LDO2" },
1080        { "MICB2", NULL, "MICB2 Audio" },
1081        { "MICB2", NULL, "Bandgap" },
1082
1083        { "AIF1RX0", NULL, "AIF1 Playback" },
1084        { "AIF1RX1", NULL, "AIF1 Playback" },
1085        { "AIF1RX2", NULL, "AIF1 Playback" },
1086        { "AIF1RX3", NULL, "AIF1 Playback" },
1087        { "AIF1RX4", NULL, "AIF1 Playback" },
1088        { "AIF1RX5", NULL, "AIF1 Playback" },
1089
1090        { "AIF2RX0", NULL, "AIF2 Playback" },
1091        { "AIF2RX1", NULL, "AIF2 Playback" },
1092
1093        { "AIF1 Capture", NULL, "AIF1TX0" },
1094        { "AIF1 Capture", NULL, "AIF1TX1" },
1095        { "AIF1 Capture", NULL, "AIF1TX2" },
1096        { "AIF1 Capture", NULL, "AIF1TX3" },
1097        { "AIF1 Capture", NULL, "AIF1TX4" },
1098        { "AIF1 Capture", NULL, "AIF1TX5" },
1099
1100        { "AIF2 Capture", NULL, "AIF2TX0" },
1101        { "AIF2 Capture", NULL, "AIF2TX1" },
1102
1103        { "IN1L PGA", NULL, "IN2LN" },
1104        { "IN1L PGA", NULL, "IN2LP" },
1105        { "IN1L PGA", NULL, "IN1LN" },
1106        { "IN1L PGA", NULL, "IN1LP" },
1107        { "IN1L PGA", NULL, "Bandgap" },
1108
1109        { "IN1R PGA", NULL, "IN2RN" },
1110        { "IN1R PGA", NULL, "IN2RP" },
1111        { "IN1R PGA", NULL, "IN1RN" },
1112        { "IN1R PGA", NULL, "IN1RP" },
1113        { "IN1R PGA", NULL, "Bandgap" },
1114
1115        { "ADCL", NULL, "IN1L PGA" },
1116
1117        { "ADCR", NULL, "IN1R PGA" },
1118
1119        { "DMIC1L", NULL, "DMIC1DAT" },
1120        { "DMIC1R", NULL, "DMIC1DAT" },
1121        { "DMIC2L", NULL, "DMIC2DAT" },
1122        { "DMIC2R", NULL, "DMIC2DAT" },
1123
1124        { "DMIC2L", NULL, "DMIC2" },
1125        { "DMIC2R", NULL, "DMIC2" },
1126        { "DMIC1L", NULL, "DMIC1" },
1127        { "DMIC1R", NULL, "DMIC1" },
1128
1129        { "IN1L Mux", "ADC", "ADCL" },
1130        { "IN1L Mux", "DMIC1", "DMIC1L" },
1131        { "IN1L Mux", "DMIC2", "DMIC2L" },
1132
1133        { "IN1R Mux", "ADC", "ADCR" },
1134        { "IN1R Mux", "DMIC1", "DMIC1R" },
1135        { "IN1R Mux", "DMIC2", "DMIC2R" },
1136
1137        { "IN2L Mux", "ADC", "ADCL" },
1138        { "IN2L Mux", "DMIC1", "DMIC1L" },
1139        { "IN2L Mux", "DMIC2", "DMIC2L" },
1140
1141        { "IN2R Mux", "ADC", "ADCR" },
1142        { "IN2R Mux", "DMIC1", "DMIC1R" },
1143        { "IN2R Mux", "DMIC2", "DMIC2R" },
1144
1145        { "Left Sidetone", "IN1", "IN1L Mux" },
1146        { "Left Sidetone", "IN2", "IN2L Mux" },
1147
1148        { "Right Sidetone", "IN1", "IN1R Mux" },
1149        { "Right Sidetone", "IN2", "IN2R Mux" },
1150
1151        { "DSP1TXL", "IN1 Switch", "IN1L Mux" },
1152        { "DSP1TXR", "IN1 Switch", "IN1R Mux" },
1153
1154        { "DSP2TXL", "IN1 Switch", "IN2L Mux" },
1155        { "DSP2TXR", "IN1 Switch", "IN2R Mux" },
1156
1157        { "AIF1TX0", NULL, "DSP1TXL" },
1158        { "AIF1TX1", NULL, "DSP1TXR" },
1159        { "AIF1TX2", NULL, "DSP2TXL" },
1160        { "AIF1TX3", NULL, "DSP2TXR" },
1161        { "AIF1TX4", NULL, "AIF2RX0" },
1162        { "AIF1TX5", NULL, "AIF2RX1" },
1163
1164        { "AIF1RX0", NULL, "AIFCLK" },
1165        { "AIF1RX1", NULL, "AIFCLK" },
1166        { "AIF1RX2", NULL, "AIFCLK" },
1167        { "AIF1RX3", NULL, "AIFCLK" },
1168        { "AIF1RX4", NULL, "AIFCLK" },
1169        { "AIF1RX5", NULL, "AIFCLK" },
1170
1171        { "AIF2RX0", NULL, "AIFCLK" },
1172        { "AIF2RX1", NULL, "AIFCLK" },
1173
1174        { "AIF1TX0", NULL, "AIFCLK" },
1175        { "AIF1TX1", NULL, "AIFCLK" },
1176        { "AIF1TX2", NULL, "AIFCLK" },
1177        { "AIF1TX3", NULL, "AIFCLK" },
1178        { "AIF1TX4", NULL, "AIFCLK" },
1179        { "AIF1TX5", NULL, "AIFCLK" },
1180
1181        { "AIF2TX0", NULL, "AIFCLK" },
1182        { "AIF2TX1", NULL, "AIFCLK" },
1183
1184        { "DSP1RXL", NULL, "SYSDSPCLK" },
1185        { "DSP1RXR", NULL, "SYSDSPCLK" },
1186        { "DSP2RXL", NULL, "SYSDSPCLK" },
1187        { "DSP2RXR", NULL, "SYSDSPCLK" },
1188        { "DSP1TXL", NULL, "SYSDSPCLK" },
1189        { "DSP1TXR", NULL, "SYSDSPCLK" },
1190        { "DSP2TXL", NULL, "SYSDSPCLK" },
1191        { "DSP2TXR", NULL, "SYSDSPCLK" },
1192
1193        { "AIF1RXA", NULL, "AIF1RX0" },
1194        { "AIF1RXA", NULL, "AIF1RX1" },
1195        { "AIF1RXB", NULL, "AIF1RX2" },
1196        { "AIF1RXB", NULL, "AIF1RX3" },
1197        { "AIF1RXC", NULL, "AIF1RX4" },
1198        { "AIF1RXC", NULL, "AIF1RX5" },
1199
1200        { "AIF2RX", NULL, "AIF2RX0" },
1201        { "AIF2RX", NULL, "AIF2RX1" },
1202
1203        { "AIF2TX", "DSP2", "DSP2TX" },
1204        { "AIF2TX", "DSP1", "DSP1RX" },
1205        { "AIF2TX", "AIF1", "AIF1RXC" },
1206
1207        { "DSP1RXL", NULL, "DSP1RX" },
1208        { "DSP1RXR", NULL, "DSP1RX" },
1209        { "DSP2RXL", NULL, "DSP2RX" },
1210        { "DSP2RXR", NULL, "DSP2RX" },
1211
1212        { "DSP2TX", NULL, "DSP2TXL" },
1213        { "DSP2TX", NULL, "DSP2TXR" },
1214
1215        { "DSP1RX", "AIF1", "AIF1RXA" },
1216        { "DSP1RX", "AIF2", "AIF2RX" },
1217
1218        { "DSP2RX", "AIF1", "AIF1RXB" },
1219        { "DSP2RX", "AIF2", "AIF2RX" },
1220
1221        { "DAC2L Mixer", "DSP2 Switch", "DSP2RXL" },
1222        { "DAC2L Mixer", "DSP1 Switch", "DSP1RXL" },
1223        { "DAC2L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1224        { "DAC2L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1225
1226        { "DAC2R Mixer", "DSP2 Switch", "DSP2RXR" },
1227        { "DAC2R Mixer", "DSP1 Switch", "DSP1RXR" },
1228        { "DAC2R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1229        { "DAC2R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1230
1231        { "DAC1L Mixer", "DSP2 Switch", "DSP2RXL" },
1232        { "DAC1L Mixer", "DSP1 Switch", "DSP1RXL" },
1233        { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1234        { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1235
1236        { "DAC1R Mixer", "DSP2 Switch", "DSP2RXR" },
1237        { "DAC1R Mixer", "DSP1 Switch", "DSP1RXR" },
1238        { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1239        { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1240
1241        { "DAC1L", NULL, "DAC1L Mixer" },
1242        { "DAC1R", NULL, "DAC1R Mixer" },
1243        { "DAC2L", NULL, "DAC2L Mixer" },
1244        { "DAC2R", NULL, "DAC2R Mixer" },
1245
1246        { "HPOUT2L PGA", NULL, "Charge Pump" },
1247        { "HPOUT2L PGA", NULL, "Bandgap" },
1248        { "HPOUT2L PGA", NULL, "DAC2L" },
1249        { "HPOUT2L_DLY", NULL, "HPOUT2L PGA" },
1250        { "HPOUT2L_DCS", NULL, "HPOUT2L_DLY" },
1251        { "HPOUT2L_RMV_SHORT", NULL, "HPOUT2L_DCS" },
1252
1253        { "HPOUT2R PGA", NULL, "Charge Pump" },
1254        { "HPOUT2R PGA", NULL, "Bandgap" },
1255        { "HPOUT2R PGA", NULL, "DAC2R" },
1256        { "HPOUT2R_DLY", NULL, "HPOUT2R PGA" },
1257        { "HPOUT2R_DCS", NULL, "HPOUT2R_DLY" },
1258        { "HPOUT2R_RMV_SHORT", NULL, "HPOUT2R_DCS" },
1259
1260        { "HPOUT1L PGA", NULL, "Charge Pump" },
1261        { "HPOUT1L PGA", NULL, "Bandgap" },
1262        { "HPOUT1L PGA", NULL, "DAC1L" },
1263        { "HPOUT1L_DLY", NULL, "HPOUT1L PGA" },
1264        { "HPOUT1L_DCS", NULL, "HPOUT1L_DLY" },
1265        { "HPOUT1L_RMV_SHORT", NULL, "HPOUT1L_DCS" },
1266
1267        { "HPOUT1R PGA", NULL, "Charge Pump" },
1268        { "HPOUT1R PGA", NULL, "Bandgap" },
1269        { "HPOUT1R PGA", NULL, "DAC1R" },
1270        { "HPOUT1R_DLY", NULL, "HPOUT1R PGA" },
1271        { "HPOUT1R_DCS", NULL, "HPOUT1R_DLY" },
1272        { "HPOUT1R_RMV_SHORT", NULL, "HPOUT1R_DCS" },
1273
1274        { "HPOUT2L", NULL, "HPOUT2L_RMV_SHORT" },
1275        { "HPOUT2R", NULL, "HPOUT2R_RMV_SHORT" },
1276        { "HPOUT1L", NULL, "HPOUT1L_RMV_SHORT" },
1277        { "HPOUT1R", NULL, "HPOUT1R_RMV_SHORT" },
1278
1279        { "SPKL", "DAC1L", "DAC1L" },
1280        { "SPKL", "DAC1R", "DAC1R" },
1281        { "SPKL", "DAC2L", "DAC2L" },
1282        { "SPKL", "DAC2R", "DAC2R" },
1283
1284        { "SPKR", "DAC1L", "DAC1L" },
1285        { "SPKR", "DAC1R", "DAC1R" },
1286        { "SPKR", "DAC2L", "DAC2L" },
1287        { "SPKR", "DAC2R", "DAC2R" },
1288
1289        { "SPKL PGA", NULL, "SPKL" },
1290        { "SPKR PGA", NULL, "SPKR" },
1291
1292        { "SPKDAT", NULL, "SPKL PGA" },
1293        { "SPKDAT", NULL, "SPKR PGA" },
1294};
1295
1296static bool wm8996_readable_register(struct device *dev, unsigned int reg)
1297{
1298        /* Due to the sparseness of the register map the compiler
1299         * output from an explicit switch statement ends up being much
1300         * more efficient than a table.
1301         */
1302        switch (reg) {
1303        case WM8996_SOFTWARE_RESET:
1304        case WM8996_POWER_MANAGEMENT_1:
1305        case WM8996_POWER_MANAGEMENT_2:
1306        case WM8996_POWER_MANAGEMENT_3:
1307        case WM8996_POWER_MANAGEMENT_4:
1308        case WM8996_POWER_MANAGEMENT_5:
1309        case WM8996_POWER_MANAGEMENT_6:
1310        case WM8996_POWER_MANAGEMENT_7:
1311        case WM8996_POWER_MANAGEMENT_8:
1312        case WM8996_LEFT_LINE_INPUT_VOLUME:
1313        case WM8996_RIGHT_LINE_INPUT_VOLUME:
1314        case WM8996_LINE_INPUT_CONTROL:
1315        case WM8996_DAC1_HPOUT1_VOLUME:
1316        case WM8996_DAC2_HPOUT2_VOLUME:
1317        case WM8996_DAC1_LEFT_VOLUME:
1318        case WM8996_DAC1_RIGHT_VOLUME:
1319        case WM8996_DAC2_LEFT_VOLUME:
1320        case WM8996_DAC2_RIGHT_VOLUME:
1321        case WM8996_OUTPUT1_LEFT_VOLUME:
1322        case WM8996_OUTPUT1_RIGHT_VOLUME:
1323        case WM8996_OUTPUT2_LEFT_VOLUME:
1324        case WM8996_OUTPUT2_RIGHT_VOLUME:
1325        case WM8996_MICBIAS_1:
1326        case WM8996_MICBIAS_2:
1327        case WM8996_LDO_1:
1328        case WM8996_LDO_2:
1329        case WM8996_ACCESSORY_DETECT_MODE_1:
1330        case WM8996_ACCESSORY_DETECT_MODE_2:
1331        case WM8996_HEADPHONE_DETECT_1:
1332        case WM8996_HEADPHONE_DETECT_2:
1333        case WM8996_MIC_DETECT_1:
1334        case WM8996_MIC_DETECT_2:
1335        case WM8996_MIC_DETECT_3:
1336        case WM8996_CHARGE_PUMP_1:
1337        case WM8996_CHARGE_PUMP_2:
1338        case WM8996_DC_SERVO_1:
1339        case WM8996_DC_SERVO_2:
1340        case WM8996_DC_SERVO_3:
1341        case WM8996_DC_SERVO_5:
1342        case WM8996_DC_SERVO_6:
1343        case WM8996_DC_SERVO_7:
1344        case WM8996_DC_SERVO_READBACK_0:
1345        case WM8996_ANALOGUE_HP_1:
1346        case WM8996_ANALOGUE_HP_2:
1347        case WM8996_CHIP_REVISION:
1348        case WM8996_CONTROL_INTERFACE_1:
1349        case WM8996_WRITE_SEQUENCER_CTRL_1:
1350        case WM8996_WRITE_SEQUENCER_CTRL_2:
1351        case WM8996_AIF_CLOCKING_1:
1352        case WM8996_AIF_CLOCKING_2:
1353        case WM8996_CLOCKING_1:
1354        case WM8996_CLOCKING_2:
1355        case WM8996_AIF_RATE:
1356        case WM8996_FLL_CONTROL_1:
1357        case WM8996_FLL_CONTROL_2:
1358        case WM8996_FLL_CONTROL_3:
1359        case WM8996_FLL_CONTROL_4:
1360        case WM8996_FLL_CONTROL_5:
1361        case WM8996_FLL_CONTROL_6:
1362        case WM8996_FLL_EFS_1:
1363        case WM8996_FLL_EFS_2:
1364        case WM8996_AIF1_CONTROL:
1365        case WM8996_AIF1_BCLK:
1366        case WM8996_AIF1_TX_LRCLK_1:
1367        case WM8996_AIF1_TX_LRCLK_2:
1368        case WM8996_AIF1_RX_LRCLK_1:
1369        case WM8996_AIF1_RX_LRCLK_2:
1370        case WM8996_AIF1TX_DATA_CONFIGURATION_1:
1371        case WM8996_AIF1TX_DATA_CONFIGURATION_2:
1372        case WM8996_AIF1RX_DATA_CONFIGURATION:
1373        case WM8996_AIF1TX_CHANNEL_0_CONFIGURATION:
1374        case WM8996_AIF1TX_CHANNEL_1_CONFIGURATION:
1375        case WM8996_AIF1TX_CHANNEL_2_CONFIGURATION:
1376        case WM8996_AIF1TX_CHANNEL_3_CONFIGURATION:
1377        case WM8996_AIF1TX_CHANNEL_4_CONFIGURATION:
1378        case WM8996_AIF1TX_CHANNEL_5_CONFIGURATION:
1379        case WM8996_AIF1RX_CHANNEL_0_CONFIGURATION:
1380        case WM8996_AIF1RX_CHANNEL_1_CONFIGURATION:
1381        case WM8996_AIF1RX_CHANNEL_2_CONFIGURATION:
1382        case WM8996_AIF1RX_CHANNEL_3_CONFIGURATION:
1383        case WM8996_AIF1RX_CHANNEL_4_CONFIGURATION:
1384        case WM8996_AIF1RX_CHANNEL_5_CONFIGURATION:
1385        case WM8996_AIF1RX_MONO_CONFIGURATION:
1386        case WM8996_AIF1TX_TEST:
1387        case WM8996_AIF2_CONTROL:
1388        case WM8996_AIF2_BCLK:
1389        case WM8996_AIF2_TX_LRCLK_1:
1390        case WM8996_AIF2_TX_LRCLK_2:
1391        case WM8996_AIF2_RX_LRCLK_1:
1392        case WM8996_AIF2_RX_LRCLK_2:
1393        case WM8996_AIF2TX_DATA_CONFIGURATION_1:
1394        case WM8996_AIF2TX_DATA_CONFIGURATION_2:
1395        case WM8996_AIF2RX_DATA_CONFIGURATION:
1396        case WM8996_AIF2TX_CHANNEL_0_CONFIGURATION:
1397        case WM8996_AIF2TX_CHANNEL_1_CONFIGURATION:
1398        case WM8996_AIF2RX_CHANNEL_0_CONFIGURATION:
1399        case WM8996_AIF2RX_CHANNEL_1_CONFIGURATION:
1400        case WM8996_AIF2RX_MONO_CONFIGURATION:
1401        case WM8996_AIF2TX_TEST:
1402        case WM8996_DSP1_TX_LEFT_VOLUME:
1403        case WM8996_DSP1_TX_RIGHT_VOLUME:
1404        case WM8996_DSP1_RX_LEFT_VOLUME:
1405        case WM8996_DSP1_RX_RIGHT_VOLUME:
1406        case WM8996_DSP1_TX_FILTERS:
1407        case WM8996_DSP1_RX_FILTERS_1:
1408        case WM8996_DSP1_RX_FILTERS_2:
1409        case WM8996_DSP1_DRC_1:
1410        case WM8996_DSP1_DRC_2:
1411        case WM8996_DSP1_DRC_3:
1412        case WM8996_DSP1_DRC_4:
1413        case WM8996_DSP1_DRC_5:
1414        case WM8996_DSP1_RX_EQ_GAINS_1:
1415        case WM8996_DSP1_RX_EQ_GAINS_2:
1416        case WM8996_DSP1_RX_EQ_BAND_1_A:
1417        case WM8996_DSP1_RX_EQ_BAND_1_B:
1418        case WM8996_DSP1_RX_EQ_BAND_1_PG:
1419        case WM8996_DSP1_RX_EQ_BAND_2_A:
1420        case WM8996_DSP1_RX_EQ_BAND_2_B:
1421        case WM8996_DSP1_RX_EQ_BAND_2_C:
1422        case WM8996_DSP1_RX_EQ_BAND_2_PG:
1423        case WM8996_DSP1_RX_EQ_BAND_3_A:
1424        case WM8996_DSP1_RX_EQ_BAND_3_B:
1425        case WM8996_DSP1_RX_EQ_BAND_3_C:
1426        case WM8996_DSP1_RX_EQ_BAND_3_PG:
1427        case WM8996_DSP1_RX_EQ_BAND_4_A:
1428        case WM8996_DSP1_RX_EQ_BAND_4_B:
1429        case WM8996_DSP1_RX_EQ_BAND_4_C:
1430        case WM8996_DSP1_RX_EQ_BAND_4_PG:
1431        case WM8996_DSP1_RX_EQ_BAND_5_A:
1432        case WM8996_DSP1_RX_EQ_BAND_5_B:
1433        case WM8996_DSP1_RX_EQ_BAND_5_PG:
1434        case WM8996_DSP2_TX_LEFT_VOLUME:
1435        case WM8996_DSP2_TX_RIGHT_VOLUME:
1436        case WM8996_DSP2_RX_LEFT_VOLUME:
1437        case WM8996_DSP2_RX_RIGHT_VOLUME:
1438        case WM8996_DSP2_TX_FILTERS:
1439        case WM8996_DSP2_RX_FILTERS_1:
1440        case WM8996_DSP2_RX_FILTERS_2:
1441        case WM8996_DSP2_DRC_1:
1442        case WM8996_DSP2_DRC_2:
1443        case WM8996_DSP2_DRC_3:
1444        case WM8996_DSP2_DRC_4:
1445        case WM8996_DSP2_DRC_5:
1446        case WM8996_DSP2_RX_EQ_GAINS_1:
1447        case WM8996_DSP2_RX_EQ_GAINS_2:
1448        case WM8996_DSP2_RX_EQ_BAND_1_A:
1449        case WM8996_DSP2_RX_EQ_BAND_1_B:
1450        case WM8996_DSP2_RX_EQ_BAND_1_PG:
1451        case WM8996_DSP2_RX_EQ_BAND_2_A:
1452        case WM8996_DSP2_RX_EQ_BAND_2_B:
1453        case WM8996_DSP2_RX_EQ_BAND_2_C:
1454        case WM8996_DSP2_RX_EQ_BAND_2_PG:
1455        case WM8996_DSP2_RX_EQ_BAND_3_A:
1456        case WM8996_DSP2_RX_EQ_BAND_3_B:
1457        case WM8996_DSP2_RX_EQ_BAND_3_C:
1458        case WM8996_DSP2_RX_EQ_BAND_3_PG:
1459        case WM8996_DSP2_RX_EQ_BAND_4_A:
1460        case WM8996_DSP2_RX_EQ_BAND_4_B:
1461        case WM8996_DSP2_RX_EQ_BAND_4_C:
1462        case WM8996_DSP2_RX_EQ_BAND_4_PG:
1463        case WM8996_DSP2_RX_EQ_BAND_5_A:
1464        case WM8996_DSP2_RX_EQ_BAND_5_B:
1465        case WM8996_DSP2_RX_EQ_BAND_5_PG:
1466        case WM8996_DAC1_MIXER_VOLUMES:
1467        case WM8996_DAC1_LEFT_MIXER_ROUTING:
1468        case WM8996_DAC1_RIGHT_MIXER_ROUTING:
1469        case WM8996_DAC2_MIXER_VOLUMES:
1470        case WM8996_DAC2_LEFT_MIXER_ROUTING:
1471        case WM8996_DAC2_RIGHT_MIXER_ROUTING:
1472        case WM8996_DSP1_TX_LEFT_MIXER_ROUTING:
1473        case WM8996_DSP1_TX_RIGHT_MIXER_ROUTING:
1474        case WM8996_DSP2_TX_LEFT_MIXER_ROUTING:
1475        case WM8996_DSP2_TX_RIGHT_MIXER_ROUTING:
1476        case WM8996_DSP_TX_MIXER_SELECT:
1477        case WM8996_DAC_SOFTMUTE:
1478        case WM8996_OVERSAMPLING:
1479        case WM8996_SIDETONE:
1480        case WM8996_GPIO_1:
1481        case WM8996_GPIO_2:
1482        case WM8996_GPIO_3:
1483        case WM8996_GPIO_4:
1484        case WM8996_GPIO_5:
1485        case WM8996_PULL_CONTROL_1:
1486        case WM8996_PULL_CONTROL_2:
1487        case WM8996_INTERRUPT_STATUS_1:
1488        case WM8996_INTERRUPT_STATUS_2:
1489        case WM8996_INTERRUPT_RAW_STATUS_2:
1490        case WM8996_INTERRUPT_STATUS_1_MASK:
1491        case WM8996_INTERRUPT_STATUS_2_MASK:
1492        case WM8996_INTERRUPT_CONTROL:
1493        case WM8996_LEFT_PDM_SPEAKER:
1494        case WM8996_RIGHT_PDM_SPEAKER:
1495        case WM8996_PDM_SPEAKER_MUTE_SEQUENCE:
1496        case WM8996_PDM_SPEAKER_VOLUME:
1497                return true;
1498        default:
1499                return false;
1500        }
1501}
1502
1503static bool wm8996_volatile_register(struct device *dev, unsigned int reg)
1504{
1505        switch (reg) {
1506        case WM8996_SOFTWARE_RESET:
1507        case WM8996_CHIP_REVISION:
1508        case WM8996_LDO_1:
1509        case WM8996_LDO_2:
1510        case WM8996_INTERRUPT_STATUS_1:
1511        case WM8996_INTERRUPT_STATUS_2:
1512        case WM8996_INTERRUPT_RAW_STATUS_2:
1513        case WM8996_DC_SERVO_READBACK_0:
1514        case WM8996_DC_SERVO_2:
1515        case WM8996_DC_SERVO_6:
1516        case WM8996_DC_SERVO_7:
1517        case WM8996_FLL_CONTROL_6:
1518        case WM8996_MIC_DETECT_3:
1519        case WM8996_HEADPHONE_DETECT_1:
1520        case WM8996_HEADPHONE_DETECT_2:
1521                return true;
1522        default:
1523                return false;
1524        }
1525}
1526
1527static const int bclk_divs[] = {
1528        1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
1529};
1530
1531static void wm8996_update_bclk(struct snd_soc_component *component)
1532{
1533        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
1534        int aif, best, cur_val, bclk_rate, bclk_reg, i;
1535
1536        /* Don't bother if we're in a low frequency idle mode that
1537         * can't support audio.
1538         */
1539        if (wm8996->sysclk < 64000)
1540                return;
1541
1542        for (aif = 0; aif < WM8996_AIFS; aif++) {
1543                switch (aif) {
1544                case 0:
1545                        bclk_reg = WM8996_AIF1_BCLK;
1546                        break;
1547                case 1:
1548                        bclk_reg = WM8996_AIF2_BCLK;
1549                        break;
1550                }
1551
1552                bclk_rate = wm8996->bclk_rate[aif];
1553
1554                /* Pick a divisor for BCLK as close as we can get to ideal */
1555                best = 0;
1556                for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1557                        cur_val = (wm8996->sysclk / bclk_divs[i]) - bclk_rate;
1558                        if (cur_val < 0) /* BCLK table is sorted */
1559                                break;
1560                        best = i;
1561                }
1562                bclk_rate = wm8996->sysclk / bclk_divs[best];
1563                dev_dbg(component->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1564                        bclk_divs[best], bclk_rate);
1565
1566                snd_soc_component_update_bits(component, bclk_reg,
1567                                    WM8996_AIF1_BCLK_DIV_MASK, best);
1568        }
1569}
1570
1571static int wm8996_set_bias_level(struct snd_soc_component *component,
1572                                 enum snd_soc_bias_level level)
1573{
1574        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
1575        int ret;
1576
1577        switch (level) {
1578        case SND_SOC_BIAS_ON:
1579                break;
1580        case SND_SOC_BIAS_PREPARE:
1581                /* Put the MICBIASes into regulating mode */
1582                snd_soc_component_update_bits(component, WM8996_MICBIAS_1,
1583                                    WM8996_MICB1_MODE, 0);
1584                snd_soc_component_update_bits(component, WM8996_MICBIAS_2,
1585                                    WM8996_MICB2_MODE, 0);
1586                break;
1587
1588        case SND_SOC_BIAS_STANDBY:
1589                if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1590                        ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies),
1591                                                    wm8996->supplies);
1592                        if (ret != 0) {
1593                                dev_err(component->dev,
1594                                        "Failed to enable supplies: %d\n",
1595                                        ret);
1596                                return ret;
1597                        }
1598
1599                        if (wm8996->pdata.ldo_ena >= 0) {
1600                                gpio_set_value_cansleep(wm8996->pdata.ldo_ena,
1601                                                        1);
1602                                msleep(5);
1603                        }
1604
1605                        regcache_cache_only(wm8996->regmap, false);
1606                        regcache_sync(wm8996->regmap);
1607                }
1608
1609                /* Bypass the MICBIASes for lowest power */
1610                snd_soc_component_update_bits(component, WM8996_MICBIAS_1,
1611                                    WM8996_MICB1_MODE, WM8996_MICB1_MODE);
1612                snd_soc_component_update_bits(component, WM8996_MICBIAS_2,
1613                                    WM8996_MICB2_MODE, WM8996_MICB2_MODE);
1614                break;
1615
1616        case SND_SOC_BIAS_OFF:
1617                regcache_cache_only(wm8996->regmap, true);
1618                if (wm8996->pdata.ldo_ena >= 0) {
1619                        gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
1620                        regcache_cache_only(wm8996->regmap, true);
1621                }
1622                regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies),
1623                                       wm8996->supplies);
1624                break;
1625        }
1626
1627        return 0;
1628}
1629
1630static int wm8996_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1631{
1632        struct snd_soc_component *component = dai->component;
1633        int aifctrl = 0;
1634        int bclk = 0;
1635        int lrclk_tx = 0;
1636        int lrclk_rx = 0;
1637        int aifctrl_reg, bclk_reg, lrclk_tx_reg, lrclk_rx_reg;
1638
1639        switch (dai->id) {
1640        case 0:
1641                aifctrl_reg = WM8996_AIF1_CONTROL;
1642                bclk_reg = WM8996_AIF1_BCLK;
1643                lrclk_tx_reg = WM8996_AIF1_TX_LRCLK_2;
1644                lrclk_rx_reg = WM8996_AIF1_RX_LRCLK_2;
1645                break;
1646        case 1:
1647                aifctrl_reg = WM8996_AIF2_CONTROL;
1648                bclk_reg = WM8996_AIF2_BCLK;
1649                lrclk_tx_reg = WM8996_AIF2_TX_LRCLK_2;
1650                lrclk_rx_reg = WM8996_AIF2_RX_LRCLK_2;
1651                break;
1652        default:
1653                WARN(1, "Invalid dai id %d\n", dai->id);
1654                return -EINVAL;
1655        }
1656
1657        switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1658        case SND_SOC_DAIFMT_NB_NF:
1659                break;
1660        case SND_SOC_DAIFMT_IB_NF:
1661                bclk |= WM8996_AIF1_BCLK_INV;
1662                break;
1663        case SND_SOC_DAIFMT_NB_IF:
1664                lrclk_tx |= WM8996_AIF1TX_LRCLK_INV;
1665                lrclk_rx |= WM8996_AIF1RX_LRCLK_INV;
1666                break;
1667        case SND_SOC_DAIFMT_IB_IF:
1668                bclk |= WM8996_AIF1_BCLK_INV;
1669                lrclk_tx |= WM8996_AIF1TX_LRCLK_INV;
1670                lrclk_rx |= WM8996_AIF1RX_LRCLK_INV;
1671                break;
1672        }
1673
1674        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1675        case SND_SOC_DAIFMT_CBS_CFS:
1676                break;
1677        case SND_SOC_DAIFMT_CBS_CFM:
1678                lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR;
1679                lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR;
1680                break;
1681        case SND_SOC_DAIFMT_CBM_CFS:
1682                bclk |= WM8996_AIF1_BCLK_MSTR;
1683                break;
1684        case SND_SOC_DAIFMT_CBM_CFM:
1685                bclk |= WM8996_AIF1_BCLK_MSTR;
1686                lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR;
1687                lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR;
1688                break;
1689        default:
1690                return -EINVAL;
1691        }
1692
1693        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1694        case SND_SOC_DAIFMT_DSP_A:
1695                break;
1696        case SND_SOC_DAIFMT_DSP_B:
1697                aifctrl |= 1;
1698                break;
1699        case SND_SOC_DAIFMT_I2S:
1700                aifctrl |= 2;
1701                break;
1702        case SND_SOC_DAIFMT_LEFT_J:
1703                aifctrl |= 3;
1704                break;
1705        default:
1706                return -EINVAL;
1707        }
1708
1709        snd_soc_component_update_bits(component, aifctrl_reg, WM8996_AIF1_FMT_MASK, aifctrl);
1710        snd_soc_component_update_bits(component, bclk_reg,
1711                            WM8996_AIF1_BCLK_INV | WM8996_AIF1_BCLK_MSTR,
1712                            bclk);
1713        snd_soc_component_update_bits(component, lrclk_tx_reg,
1714                            WM8996_AIF1TX_LRCLK_INV |
1715                            WM8996_AIF1TX_LRCLK_MSTR,
1716                            lrclk_tx);
1717        snd_soc_component_update_bits(component, lrclk_rx_reg,
1718                            WM8996_AIF1RX_LRCLK_INV |
1719                            WM8996_AIF1RX_LRCLK_MSTR,
1720                            lrclk_rx);
1721
1722        return 0;
1723}
1724
1725static const int dsp_divs[] = {
1726        48000, 32000, 16000, 8000
1727};
1728
1729static int wm8996_hw_params(struct snd_pcm_substream *substream,
1730                            struct snd_pcm_hw_params *params,
1731                            struct snd_soc_dai *dai)
1732{
1733        struct snd_soc_component *component = dai->component;
1734        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
1735        int bits, i, bclk_rate, best;
1736        int aifdata = 0;
1737        int lrclk = 0;
1738        int dsp = 0;
1739        int aifdata_reg, lrclk_reg, dsp_shift;
1740
1741        switch (dai->id) {
1742        case 0:
1743                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
1744                    (snd_soc_component_read32(component, WM8996_GPIO_1)) & WM8996_GP1_FN_MASK) {
1745                        aifdata_reg = WM8996_AIF1RX_DATA_CONFIGURATION;
1746                        lrclk_reg = WM8996_AIF1_RX_LRCLK_1;
1747                } else {
1748                        aifdata_reg = WM8996_AIF1TX_DATA_CONFIGURATION_1;
1749                        lrclk_reg = WM8996_AIF1_TX_LRCLK_1;
1750                }
1751                dsp_shift = 0;
1752                break;
1753        case 1:
1754                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
1755                    (snd_soc_component_read32(component, WM8996_GPIO_2)) & WM8996_GP2_FN_MASK) {
1756                        aifdata_reg = WM8996_AIF2RX_DATA_CONFIGURATION;
1757                        lrclk_reg = WM8996_AIF2_RX_LRCLK_1;
1758                } else {
1759                        aifdata_reg = WM8996_AIF2TX_DATA_CONFIGURATION_1;
1760                        lrclk_reg = WM8996_AIF2_TX_LRCLK_1;
1761                }
1762                dsp_shift = WM8996_DSP2_DIV_SHIFT;
1763                break;
1764        default:
1765                WARN(1, "Invalid dai id %d\n", dai->id);
1766                return -EINVAL;
1767        }
1768
1769        bclk_rate = snd_soc_params_to_bclk(params);
1770        if (bclk_rate < 0) {
1771                dev_err(component->dev, "Unsupported BCLK rate: %d\n", bclk_rate);
1772                return bclk_rate;
1773        }
1774
1775        wm8996->bclk_rate[dai->id] = bclk_rate;
1776        wm8996->rx_rate[dai->id] = params_rate(params);
1777
1778        /* Needs looking at for TDM */
1779        bits = params_width(params);
1780        if (bits < 0)
1781                return bits;
1782        aifdata |= (bits << WM8996_AIF1TX_WL_SHIFT) | bits;
1783
1784        best = 0;
1785        for (i = 0; i < ARRAY_SIZE(dsp_divs); i++) {
1786                if (abs(dsp_divs[i] - params_rate(params)) <
1787                    abs(dsp_divs[best] - params_rate(params)))
1788                        best = i;
1789        }
1790        dsp |= i << dsp_shift;
1791
1792        wm8996_update_bclk(component);
1793
1794        lrclk = bclk_rate / params_rate(params);
1795        dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1796                lrclk, bclk_rate / lrclk);
1797
1798        snd_soc_component_update_bits(component, aifdata_reg,
1799                            WM8996_AIF1TX_WL_MASK |
1800                            WM8996_AIF1TX_SLOT_LEN_MASK,
1801                            aifdata);
1802        snd_soc_component_update_bits(component, lrclk_reg, WM8996_AIF1RX_RATE_MASK,
1803                            lrclk);
1804        snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_2,
1805                            WM8996_DSP1_DIV_MASK << dsp_shift, dsp);
1806
1807        return 0;
1808}
1809
1810static int wm8996_set_sysclk(struct snd_soc_dai *dai,
1811                int clk_id, unsigned int freq, int dir)
1812{
1813        struct snd_soc_component *component = dai->component;
1814        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
1815        int lfclk = 0;
1816        int ratediv = 0;
1817        int sync = WM8996_REG_SYNC;
1818        int src;
1819        int old;
1820
1821        if (freq == wm8996->sysclk && clk_id == wm8996->sysclk_src)
1822                return 0;
1823
1824        /* Disable SYSCLK while we reconfigure */
1825        old = snd_soc_component_read32(component, WM8996_AIF_CLOCKING_1) & WM8996_SYSCLK_ENA;
1826        snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1,
1827                            WM8996_SYSCLK_ENA, 0);
1828
1829        switch (clk_id) {
1830        case WM8996_SYSCLK_MCLK1:
1831                wm8996->sysclk = freq;
1832                src = 0;
1833                break;
1834        case WM8996_SYSCLK_MCLK2:
1835                wm8996->sysclk = freq;
1836                src = 1;
1837                break;
1838        case WM8996_SYSCLK_FLL:
1839                wm8996->sysclk = freq;
1840                src = 2;
1841                break;
1842        default:
1843                dev_err(component->dev, "Unsupported clock source %d\n", clk_id);
1844                return -EINVAL;
1845        }
1846
1847        switch (wm8996->sysclk) {
1848        case 5644800:
1849        case 6144000:
1850                snd_soc_component_update_bits(component, WM8996_AIF_RATE,
1851                                    WM8996_SYSCLK_RATE, 0);
1852                break;
1853        case 22579200:
1854        case 24576000:
1855                ratediv = WM8996_SYSCLK_DIV;
1856                wm8996->sysclk /= 2;
1857                /* fall through */
1858        case 11289600:
1859        case 12288000:
1860                snd_soc_component_update_bits(component, WM8996_AIF_RATE,
1861                                    WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE);
1862                break;
1863        case 32000:
1864        case 32768:
1865                lfclk = WM8996_LFCLK_ENA;
1866                sync = 0;
1867                break;
1868        default:
1869                dev_warn(component->dev, "Unsupported clock rate %dHz\n",
1870                         wm8996->sysclk);
1871                return -EINVAL;
1872        }
1873
1874        wm8996_update_bclk(component);
1875
1876        snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1,
1877                            WM8996_SYSCLK_SRC_MASK | WM8996_SYSCLK_DIV_MASK,
1878                            src << WM8996_SYSCLK_SRC_SHIFT | ratediv);
1879        snd_soc_component_update_bits(component, WM8996_CLOCKING_1, WM8996_LFCLK_ENA, lfclk);
1880        snd_soc_component_update_bits(component, WM8996_CONTROL_INTERFACE_1,
1881                            WM8996_REG_SYNC, sync);
1882        snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1,
1883                            WM8996_SYSCLK_ENA, old);
1884
1885        wm8996->sysclk_src = clk_id;
1886
1887        return 0;
1888}
1889
1890struct _fll_div {
1891        u16 fll_fratio;
1892        u16 fll_outdiv;
1893        u16 fll_refclk_div;
1894        u16 fll_loop_gain;
1895        u16 fll_ref_freq;
1896        u16 n;
1897        u16 theta;
1898        u16 lambda;
1899};
1900
1901static struct {
1902        unsigned int min;
1903        unsigned int max;
1904        u16 fll_fratio;
1905        int ratio;
1906} fll_fratios[] = {
1907        {       0,    64000, 4, 16 },
1908        {   64000,   128000, 3,  8 },
1909        {  128000,   256000, 2,  4 },
1910        {  256000,  1000000, 1,  2 },
1911        { 1000000, 13500000, 0,  1 },
1912};
1913
1914static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1915                       unsigned int Fout)
1916{
1917        unsigned int target;
1918        unsigned int div;
1919        unsigned int fratio, gcd_fll;
1920        int i;
1921
1922        /* Fref must be <=13.5MHz */
1923        div = 1;
1924        fll_div->fll_refclk_div = 0;
1925        while ((Fref / div) > 13500000) {
1926                div *= 2;
1927                fll_div->fll_refclk_div++;
1928
1929                if (div > 8) {
1930                        pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1931                               Fref);
1932                        return -EINVAL;
1933                }
1934        }
1935
1936        pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout);
1937
1938        /* Apply the division for our remaining calculations */
1939        Fref /= div;
1940
1941        if (Fref >= 3000000)
1942                fll_div->fll_loop_gain = 5;
1943        else
1944                fll_div->fll_loop_gain = 0;
1945
1946        if (Fref >= 48000)
1947                fll_div->fll_ref_freq = 0;
1948        else
1949                fll_div->fll_ref_freq = 1;
1950
1951        /* Fvco should be 90-100MHz; don't check the upper bound */
1952        div = 2;
1953        while (Fout * div < 90000000) {
1954                div++;
1955                if (div > 64) {
1956                        pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1957                               Fout);
1958                        return -EINVAL;
1959                }
1960        }
1961        target = Fout * div;
1962        fll_div->fll_outdiv = div - 1;
1963
1964        pr_debug("FLL Fvco=%dHz\n", target);
1965
1966        /* Find an appropraite FLL_FRATIO and factor it out of the target */
1967        for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1968                if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1969                        fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1970                        fratio = fll_fratios[i].ratio;
1971                        break;
1972                }
1973        }
1974        if (i == ARRAY_SIZE(fll_fratios)) {
1975                pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1976                return -EINVAL;
1977        }
1978
1979        fll_div->n = target / (fratio * Fref);
1980
1981        if (target % Fref == 0) {
1982                fll_div->theta = 0;
1983                fll_div->lambda = 0;
1984        } else {
1985                gcd_fll = gcd(target, fratio * Fref);
1986
1987                fll_div->theta = (target - (fll_div->n * fratio * Fref))
1988                        / gcd_fll;
1989                fll_div->lambda = (fratio * Fref) / gcd_fll;
1990        }
1991
1992        pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
1993                 fll_div->n, fll_div->theta, fll_div->lambda);
1994        pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
1995                 fll_div->fll_fratio, fll_div->fll_outdiv,
1996                 fll_div->fll_refclk_div);
1997
1998        return 0;
1999}
2000
2001static int wm8996_set_fll(struct snd_soc_component *component, int fll_id, int source,
2002                          unsigned int Fref, unsigned int Fout)
2003{
2004        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2005        struct i2c_client *i2c = to_i2c_client(component->dev);
2006        struct _fll_div fll_div;
2007        unsigned long timeout, time_left;
2008        int ret, reg, retry;
2009
2010        /* Any change? */
2011        if (source == wm8996->fll_src && Fref == wm8996->fll_fref &&
2012            Fout == wm8996->fll_fout)
2013                return 0;
2014
2015        if (Fout == 0) {
2016                dev_dbg(component->dev, "FLL disabled\n");
2017
2018                wm8996->fll_fref = 0;
2019                wm8996->fll_fout = 0;
2020
2021                snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_1,
2022                                    WM8996_FLL_ENA, 0);
2023
2024                wm8996_bg_disable(component);
2025
2026                return 0;
2027        }
2028
2029        ret = fll_factors(&fll_div, Fref, Fout);
2030        if (ret != 0)
2031                return ret;
2032
2033        switch (source) {
2034        case WM8996_FLL_MCLK1:
2035                reg = 0;
2036                break;
2037        case WM8996_FLL_MCLK2:
2038                reg = 1;
2039                break;
2040        case WM8996_FLL_DACLRCLK1:
2041                reg = 2;
2042                break;
2043        case WM8996_FLL_BCLK1:
2044                reg = 3;
2045                break;
2046        default:
2047                dev_err(component->dev, "Unknown FLL source %d\n", ret);
2048                return -EINVAL;
2049        }
2050
2051        reg |= fll_div.fll_refclk_div << WM8996_FLL_REFCLK_DIV_SHIFT;
2052        reg |= fll_div.fll_ref_freq << WM8996_FLL_REF_FREQ_SHIFT;
2053
2054        snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_5,
2055                            WM8996_FLL_REFCLK_DIV_MASK | WM8996_FLL_REF_FREQ |
2056                            WM8996_FLL_REFCLK_SRC_MASK, reg);
2057
2058        reg = 0;
2059        if (fll_div.theta || fll_div.lambda)
2060                reg |= WM8996_FLL_EFS_ENA | (3 << WM8996_FLL_LFSR_SEL_SHIFT);
2061        else
2062                reg |= 1 << WM8996_FLL_LFSR_SEL_SHIFT;
2063        snd_soc_component_write(component, WM8996_FLL_EFS_2, reg);
2064
2065        snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_2,
2066                            WM8996_FLL_OUTDIV_MASK |
2067                            WM8996_FLL_FRATIO_MASK,
2068                            (fll_div.fll_outdiv << WM8996_FLL_OUTDIV_SHIFT) |
2069                            (fll_div.fll_fratio));
2070
2071        snd_soc_component_write(component, WM8996_FLL_CONTROL_3, fll_div.theta);
2072
2073        snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_4,
2074                            WM8996_FLL_N_MASK | WM8996_FLL_LOOP_GAIN_MASK,
2075                            (fll_div.n << WM8996_FLL_N_SHIFT) |
2076                            fll_div.fll_loop_gain);
2077
2078        snd_soc_component_write(component, WM8996_FLL_EFS_1, fll_div.lambda);
2079
2080        /* Enable the bandgap if it's not already enabled */
2081        ret = snd_soc_component_read32(component, WM8996_FLL_CONTROL_1);
2082        if (!(ret & WM8996_FLL_ENA))
2083                wm8996_bg_enable(component);
2084
2085        /* Clear any pending completions (eg, from failed startups) */
2086        try_wait_for_completion(&wm8996->fll_lock);
2087
2088        snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_1,
2089                            WM8996_FLL_ENA, WM8996_FLL_ENA);
2090
2091        /* The FLL supports live reconfiguration - kick that in case we were
2092         * already enabled.
2093         */
2094        snd_soc_component_write(component, WM8996_FLL_CONTROL_6, WM8996_FLL_SWITCH_CLK);
2095
2096        /* Wait for the FLL to lock, using the interrupt if possible */
2097        if (Fref > 1000000)
2098                timeout = usecs_to_jiffies(300);
2099        else
2100                timeout = msecs_to_jiffies(2);
2101
2102        /* Allow substantially longer if we've actually got the IRQ, poll
2103         * at a slightly higher rate if we don't.
2104         */
2105        if (i2c->irq)
2106                timeout *= 10;
2107        else
2108                /* ensure timeout of atleast 1 jiffies */
2109                timeout = timeout/2 ? : 1;
2110
2111        for (retry = 0; retry < 10; retry++) {
2112                time_left = wait_for_completion_timeout(&wm8996->fll_lock,
2113                                                        timeout);
2114                if (time_left != 0) {
2115                        WARN_ON(!i2c->irq);
2116                        ret = 1;
2117                        break;
2118                }
2119
2120                ret = snd_soc_component_read32(component, WM8996_INTERRUPT_RAW_STATUS_2);
2121                if (ret & WM8996_FLL_LOCK_STS)
2122                        break;
2123        }
2124        if (retry == 10) {
2125                dev_err(component->dev, "Timed out waiting for FLL\n");
2126                ret = -ETIMEDOUT;
2127        }
2128
2129        dev_dbg(component->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
2130
2131        wm8996->fll_fref = Fref;
2132        wm8996->fll_fout = Fout;
2133        wm8996->fll_src = source;
2134
2135        return ret;
2136}
2137
2138#ifdef CONFIG_GPIOLIB
2139static void wm8996_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
2140{
2141        struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
2142
2143        regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2144                           WM8996_GP1_LVL, !!value << WM8996_GP1_LVL_SHIFT);
2145}
2146
2147static int wm8996_gpio_direction_out(struct gpio_chip *chip,
2148                                     unsigned offset, int value)
2149{
2150        struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
2151        int val;
2152
2153        val = (1 << WM8996_GP1_FN_SHIFT) | (!!value << WM8996_GP1_LVL_SHIFT);
2154
2155        return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2156                                  WM8996_GP1_FN_MASK | WM8996_GP1_DIR |
2157                                  WM8996_GP1_LVL, val);
2158}
2159
2160static int wm8996_gpio_get(struct gpio_chip *chip, unsigned offset)
2161{
2162        struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
2163        unsigned int reg;
2164        int ret;
2165
2166        ret = regmap_read(wm8996->regmap, WM8996_GPIO_1 + offset, &reg);
2167        if (ret < 0)
2168                return ret;
2169
2170        return (reg & WM8996_GP1_LVL) != 0;
2171}
2172
2173static int wm8996_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
2174{
2175        struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
2176
2177        return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2178                                  WM8996_GP1_FN_MASK | WM8996_GP1_DIR,
2179                                  (1 << WM8996_GP1_FN_SHIFT) |
2180                                  (1 << WM8996_GP1_DIR_SHIFT));
2181}
2182
2183static const struct gpio_chip wm8996_template_chip = {
2184        .label                  = "wm8996",
2185        .owner                  = THIS_MODULE,
2186        .direction_output       = wm8996_gpio_direction_out,
2187        .set                    = wm8996_gpio_set,
2188        .direction_input        = wm8996_gpio_direction_in,
2189        .get                    = wm8996_gpio_get,
2190        .can_sleep              = 1,
2191};
2192
2193static void wm8996_init_gpio(struct wm8996_priv *wm8996)
2194{
2195        int ret;
2196
2197        wm8996->gpio_chip = wm8996_template_chip;
2198        wm8996->gpio_chip.ngpio = 5;
2199        wm8996->gpio_chip.parent = wm8996->dev;
2200
2201        if (wm8996->pdata.gpio_base)
2202                wm8996->gpio_chip.base = wm8996->pdata.gpio_base;
2203        else
2204                wm8996->gpio_chip.base = -1;
2205
2206        ret = gpiochip_add_data(&wm8996->gpio_chip, wm8996);
2207        if (ret != 0)
2208                dev_err(wm8996->dev, "Failed to add GPIOs: %d\n", ret);
2209}
2210
2211static void wm8996_free_gpio(struct wm8996_priv *wm8996)
2212{
2213        gpiochip_remove(&wm8996->gpio_chip);
2214}
2215#else
2216static void wm8996_init_gpio(struct wm8996_priv *wm8996)
2217{
2218}
2219
2220static void wm8996_free_gpio(struct wm8996_priv *wm8996)
2221{
2222}
2223#endif
2224
2225/**
2226 * wm8996_detect - Enable default WM8996 jack detection
2227 *
2228 * The WM8996 has advanced accessory detection support for headsets.
2229 * This function provides a default implementation which integrates
2230 * the majority of this functionality with minimal user configuration.
2231 *
2232 * This will detect headset, headphone and short circuit button and
2233 * will also detect inverted microphone ground connections and update
2234 * the polarity of the connections.
2235 */
2236int wm8996_detect(struct snd_soc_component *component, struct snd_soc_jack *jack,
2237                  wm8996_polarity_fn polarity_cb)
2238{
2239        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2240        struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
2241
2242        wm8996->jack = jack;
2243        wm8996->detecting = true;
2244        wm8996->polarity_cb = polarity_cb;
2245        wm8996->jack_flips = 0;
2246
2247        if (wm8996->polarity_cb)
2248                wm8996->polarity_cb(component, 0);
2249
2250        /* Clear discarge to avoid noise during detection */
2251        snd_soc_component_update_bits(component, WM8996_MICBIAS_1,
2252                            WM8996_MICB1_DISCH, 0);
2253        snd_soc_component_update_bits(component, WM8996_MICBIAS_2,
2254                            WM8996_MICB2_DISCH, 0);
2255
2256        /* LDO2 powers the microphones, SYSCLK clocks detection */
2257        snd_soc_dapm_mutex_lock(dapm);
2258
2259        snd_soc_dapm_force_enable_pin_unlocked(dapm, "LDO2");
2260        snd_soc_dapm_force_enable_pin_unlocked(dapm, "SYSCLK");
2261
2262        snd_soc_dapm_mutex_unlock(dapm);
2263
2264        /* We start off just enabling microphone detection - even a
2265         * plain headphone will trigger detection.
2266         */
2267        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1,
2268                            WM8996_MICD_ENA, WM8996_MICD_ENA);
2269
2270        /* Slowest detection rate, gives debounce for initial detection */
2271        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1,
2272                            WM8996_MICD_RATE_MASK,
2273                            WM8996_MICD_RATE_MASK);
2274
2275        /* Enable interrupts and we're off */
2276        snd_soc_component_update_bits(component, WM8996_INTERRUPT_STATUS_2_MASK,
2277                            WM8996_IM_MICD_EINT | WM8996_HP_DONE_EINT, 0);
2278
2279        return 0;
2280}
2281EXPORT_SYMBOL_GPL(wm8996_detect);
2282
2283static void wm8996_hpdet_irq(struct snd_soc_component *component)
2284{
2285        struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
2286        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2287        int val, reg, report;
2288
2289        /* Assume headphone in error conditions; we need to report
2290         * something or we stall our state machine.
2291         */
2292        report = SND_JACK_HEADPHONE;
2293
2294        reg = snd_soc_component_read32(component, WM8996_HEADPHONE_DETECT_2);
2295        if (reg < 0) {
2296                dev_err(component->dev, "Failed to read HPDET status\n");
2297                goto out;
2298        }
2299
2300        if (!(reg & WM8996_HP_DONE)) {
2301                dev_err(component->dev, "Got HPDET IRQ but HPDET is busy\n");
2302                goto out;
2303        }
2304
2305        val = reg & WM8996_HP_LVL_MASK;
2306
2307        dev_dbg(component->dev, "HPDET measured %d ohms\n", val);
2308
2309        /* If we've got high enough impedence then report as line,
2310         * otherwise assume headphone.
2311         */
2312        if (val >= 126)
2313                report = SND_JACK_LINEOUT;
2314        else
2315                report = SND_JACK_HEADPHONE;
2316
2317out:
2318        if (wm8996->jack_mic)
2319                report |= SND_JACK_MICROPHONE;
2320
2321        snd_soc_jack_report(wm8996->jack, report,
2322                            SND_JACK_LINEOUT | SND_JACK_HEADSET);
2323
2324        wm8996->detecting = false;
2325
2326        /* If the output isn't running re-clamp it */
2327        if (!(snd_soc_component_read32(component, WM8996_POWER_MANAGEMENT_1) &
2328              (WM8996_HPOUT1L_ENA | WM8996_HPOUT1R_RMV_SHORT)))
2329                snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1,
2330                                    WM8996_HPOUT1L_RMV_SHORT |
2331                                    WM8996_HPOUT1R_RMV_SHORT, 0);
2332
2333        /* Go back to looking at the microphone */
2334        snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_1,
2335                            WM8996_JD_MODE_MASK, 0);
2336        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_ENA,
2337                            WM8996_MICD_ENA);
2338
2339        snd_soc_dapm_disable_pin(dapm, "Bandgap");
2340        snd_soc_dapm_sync(dapm);
2341}
2342
2343static void wm8996_hpdet_start(struct snd_soc_component *component)
2344{
2345        struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
2346
2347        /* Unclamp the output, we can't measure while we're shorting it */
2348        snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1,
2349                            WM8996_HPOUT1L_RMV_SHORT |
2350                            WM8996_HPOUT1R_RMV_SHORT,
2351                            WM8996_HPOUT1L_RMV_SHORT |
2352                            WM8996_HPOUT1R_RMV_SHORT);
2353
2354        /* We need bandgap for HPDET */
2355        snd_soc_dapm_force_enable_pin(dapm, "Bandgap");
2356        snd_soc_dapm_sync(dapm);
2357
2358        /* Go into headphone detect left mode */
2359        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_ENA, 0);
2360        snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_1,
2361                            WM8996_JD_MODE_MASK, 1);
2362
2363        /* Trigger a measurement */
2364        snd_soc_component_update_bits(component, WM8996_HEADPHONE_DETECT_1,
2365                            WM8996_HP_POLL, WM8996_HP_POLL);
2366}
2367
2368static void wm8996_report_headphone(struct snd_soc_component *component)
2369{
2370        dev_dbg(component->dev, "Headphone detected\n");
2371        wm8996_hpdet_start(component);
2372
2373        /* Increase the detection rate a bit for responsiveness. */
2374        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1,
2375                            WM8996_MICD_RATE_MASK |
2376                            WM8996_MICD_BIAS_STARTTIME_MASK,
2377                            7 << WM8996_MICD_RATE_SHIFT |
2378                            7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2379}
2380
2381static void wm8996_micd(struct snd_soc_component *component)
2382{
2383        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2384        int val, reg;
2385
2386        val = snd_soc_component_read32(component, WM8996_MIC_DETECT_3);
2387
2388        dev_dbg(component->dev, "Microphone event: %x\n", val);
2389
2390        if (!(val & WM8996_MICD_VALID)) {
2391                dev_warn(component->dev, "Microphone detection state invalid\n");
2392                return;
2393        }
2394
2395        /* No accessory, reset everything and report removal */
2396        if (!(val & WM8996_MICD_STS)) {
2397                dev_dbg(component->dev, "Jack removal detected\n");
2398                wm8996->jack_mic = false;
2399                wm8996->detecting = true;
2400                wm8996->jack_flips = 0;
2401                snd_soc_jack_report(wm8996->jack, 0,
2402                                    SND_JACK_LINEOUT | SND_JACK_HEADSET |
2403                                    SND_JACK_BTN_0);
2404
2405                snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1,
2406                                    WM8996_MICD_RATE_MASK |
2407                                    WM8996_MICD_BIAS_STARTTIME_MASK,
2408                                    WM8996_MICD_RATE_MASK |
2409                                    9 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2410                return;
2411        }
2412
2413        /* If the measurement is very high we've got a microphone,
2414         * either we just detected one or if we already reported then
2415         * we've got a button release event.
2416         */
2417        if (val & 0x400) {
2418                if (wm8996->detecting) {
2419                        dev_dbg(component->dev, "Microphone detected\n");
2420                        wm8996->jack_mic = true;
2421                        wm8996_hpdet_start(component);
2422
2423                        /* Increase poll rate to give better responsiveness
2424                         * for buttons */
2425                        snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1,
2426                                            WM8996_MICD_RATE_MASK |
2427                                            WM8996_MICD_BIAS_STARTTIME_MASK,
2428                                            5 << WM8996_MICD_RATE_SHIFT |
2429                                            7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2430                } else {
2431                        dev_dbg(component->dev, "Mic button up\n");
2432                        snd_soc_jack_report(wm8996->jack, 0, SND_JACK_BTN_0);
2433                }
2434
2435                return;
2436        }
2437
2438        /* If we detected a lower impedence during initial startup
2439         * then we probably have the wrong polarity, flip it.  Don't
2440         * do this for the lowest impedences to speed up detection of
2441         * plain headphones.  If both polarities report a low
2442         * impedence then give up and report headphones.
2443         */
2444        if (wm8996->detecting && (val & 0x3f0)) {
2445                wm8996->jack_flips++;
2446
2447                if (wm8996->jack_flips > 1) {
2448                        wm8996_report_headphone(component);
2449                        return;
2450                }
2451
2452                reg = snd_soc_component_read32(component, WM8996_ACCESSORY_DETECT_MODE_2);
2453                reg ^= WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC |
2454                        WM8996_MICD_BIAS_SRC;
2455                snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_2,
2456                                    WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC |
2457                                    WM8996_MICD_BIAS_SRC, reg);
2458
2459                if (wm8996->polarity_cb)
2460                        wm8996->polarity_cb(component,
2461                                            (reg & WM8996_MICD_SRC) != 0);
2462
2463                dev_dbg(component->dev, "Set microphone polarity to %d\n",
2464                        (reg & WM8996_MICD_SRC) != 0);
2465
2466                return;
2467        }
2468
2469        /* Don't distinguish between buttons, just report any low
2470         * impedence as BTN_0.
2471         */
2472        if (val & 0x3fc) {
2473                if (wm8996->jack_mic) {
2474                        dev_dbg(component->dev, "Mic button detected\n");
2475                        snd_soc_jack_report(wm8996->jack, SND_JACK_BTN_0,
2476                                            SND_JACK_BTN_0);
2477                } else if (wm8996->detecting) {
2478                        wm8996_report_headphone(component);
2479                }
2480        }
2481}
2482
2483static irqreturn_t wm8996_irq(int irq, void *data)
2484{
2485        struct snd_soc_component *component = data;
2486        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2487        int irq_val;
2488
2489        irq_val = snd_soc_component_read32(component, WM8996_INTERRUPT_STATUS_2);
2490        if (irq_val < 0) {
2491                dev_err(component->dev, "Failed to read IRQ status: %d\n",
2492                        irq_val);
2493                return IRQ_NONE;
2494        }
2495        irq_val &= ~snd_soc_component_read32(component, WM8996_INTERRUPT_STATUS_2_MASK);
2496
2497        if (!irq_val)
2498                return IRQ_NONE;
2499
2500        snd_soc_component_write(component, WM8996_INTERRUPT_STATUS_2, irq_val);
2501
2502        if (irq_val & (WM8996_DCS_DONE_01_EINT | WM8996_DCS_DONE_23_EINT)) {
2503                dev_dbg(component->dev, "DC servo IRQ\n");
2504                complete(&wm8996->dcs_done);
2505        }
2506
2507        if (irq_val & WM8996_FIFOS_ERR_EINT)
2508                dev_err(component->dev, "Digital core FIFO error\n");
2509
2510        if (irq_val & WM8996_FLL_LOCK_EINT) {
2511                dev_dbg(component->dev, "FLL locked\n");
2512                complete(&wm8996->fll_lock);
2513        }
2514
2515        if (irq_val & WM8996_MICD_EINT)
2516                wm8996_micd(component);
2517
2518        if (irq_val & WM8996_HP_DONE_EINT)
2519                wm8996_hpdet_irq(component);
2520
2521        return IRQ_HANDLED;
2522}
2523
2524static irqreturn_t wm8996_edge_irq(int irq, void *data)
2525{
2526        irqreturn_t ret = IRQ_NONE;
2527        irqreturn_t val;
2528
2529        do {
2530                val = wm8996_irq(irq, data);
2531                if (val != IRQ_NONE)
2532                        ret = val;
2533        } while (val != IRQ_NONE);
2534
2535        return ret;
2536}
2537
2538static void wm8996_retune_mobile_pdata(struct snd_soc_component *component)
2539{
2540        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2541        struct wm8996_pdata *pdata = &wm8996->pdata;
2542
2543        struct snd_kcontrol_new controls[] = {
2544                SOC_ENUM_EXT("DSP1 EQ Mode",
2545                             wm8996->retune_mobile_enum,
2546                             wm8996_get_retune_mobile_enum,
2547                             wm8996_put_retune_mobile_enum),
2548                SOC_ENUM_EXT("DSP2 EQ Mode",
2549                             wm8996->retune_mobile_enum,
2550                             wm8996_get_retune_mobile_enum,
2551                             wm8996_put_retune_mobile_enum),
2552        };
2553        int ret, i, j;
2554        const char **t;
2555
2556        /* We need an array of texts for the enum API but the number
2557         * of texts is likely to be less than the number of
2558         * configurations due to the sample rate dependency of the
2559         * configurations. */
2560        wm8996->num_retune_mobile_texts = 0;
2561        wm8996->retune_mobile_texts = NULL;
2562        for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
2563                for (j = 0; j < wm8996->num_retune_mobile_texts; j++) {
2564                        if (strcmp(pdata->retune_mobile_cfgs[i].name,
2565                                   wm8996->retune_mobile_texts[j]) == 0)
2566                                break;
2567                }
2568
2569                if (j != wm8996->num_retune_mobile_texts)
2570                        continue;
2571
2572                /* Expand the array... */
2573                t = krealloc(wm8996->retune_mobile_texts,
2574                             sizeof(char *) * 
2575                             (wm8996->num_retune_mobile_texts + 1),
2576                             GFP_KERNEL);
2577                if (t == NULL)
2578                        continue;
2579
2580                /* ...store the new entry... */
2581                t[wm8996->num_retune_mobile_texts] = 
2582                        pdata->retune_mobile_cfgs[i].name;
2583
2584                /* ...and remember the new version. */
2585                wm8996->num_retune_mobile_texts++;
2586                wm8996->retune_mobile_texts = t;
2587        }
2588
2589        dev_dbg(component->dev, "Allocated %d unique ReTune Mobile names\n",
2590                wm8996->num_retune_mobile_texts);
2591
2592        wm8996->retune_mobile_enum.items = wm8996->num_retune_mobile_texts;
2593        wm8996->retune_mobile_enum.texts = wm8996->retune_mobile_texts;
2594
2595        ret = snd_soc_add_component_controls(component, controls, ARRAY_SIZE(controls));
2596        if (ret != 0)
2597                dev_err(component->dev,
2598                        "Failed to add ReTune Mobile controls: %d\n", ret);
2599}
2600
2601static const struct regmap_config wm8996_regmap = {
2602        .reg_bits = 16,
2603        .val_bits = 16,
2604
2605        .max_register = WM8996_MAX_REGISTER,
2606        .reg_defaults = wm8996_reg,
2607        .num_reg_defaults = ARRAY_SIZE(wm8996_reg),
2608        .volatile_reg = wm8996_volatile_register,
2609        .readable_reg = wm8996_readable_register,
2610        .cache_type = REGCACHE_RBTREE,
2611};
2612
2613static int wm8996_probe(struct snd_soc_component *component)
2614{
2615        int ret;
2616        struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component);
2617        struct i2c_client *i2c = to_i2c_client(component->dev);
2618        int irq_flags;
2619
2620        wm8996->component = component;
2621
2622        init_completion(&wm8996->dcs_done);
2623        init_completion(&wm8996->fll_lock);
2624
2625        if (wm8996->pdata.num_retune_mobile_cfgs)
2626                wm8996_retune_mobile_pdata(component);
2627        else
2628                snd_soc_add_component_controls(component, wm8996_eq_controls,
2629                                     ARRAY_SIZE(wm8996_eq_controls));
2630
2631        if (i2c->irq) {
2632                if (wm8996->pdata.irq_flags)
2633                        irq_flags = wm8996->pdata.irq_flags;
2634                else
2635                        irq_flags = IRQF_TRIGGER_LOW;
2636
2637                irq_flags |= IRQF_ONESHOT;
2638
2639                if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
2640                        ret = request_threaded_irq(i2c->irq, NULL,
2641                                                   wm8996_edge_irq,
2642                                                   irq_flags, "wm8996", component);
2643                else
2644                        ret = request_threaded_irq(i2c->irq, NULL, wm8996_irq,
2645                                                   irq_flags, "wm8996", component);
2646
2647                if (ret == 0) {
2648                        /* Unmask the interrupt */
2649                        snd_soc_component_update_bits(component, WM8996_INTERRUPT_CONTROL,
2650                                            WM8996_IM_IRQ, 0);
2651
2652                        /* Enable error reporting and DC servo status */
2653                        snd_soc_component_update_bits(component,
2654                                            WM8996_INTERRUPT_STATUS_2_MASK,
2655                                            WM8996_IM_DCS_DONE_23_EINT |
2656                                            WM8996_IM_DCS_DONE_01_EINT |
2657                                            WM8996_IM_FLL_LOCK_EINT |
2658                                            WM8996_IM_FIFOS_ERR_EINT,
2659                                            0);
2660                } else {
2661                        dev_err(component->dev, "Failed to request IRQ: %d\n",
2662                                ret);
2663                        return ret;
2664                }
2665        }
2666
2667        return 0;
2668}
2669
2670static void wm8996_remove(struct snd_soc_component *component)
2671{
2672        struct i2c_client *i2c = to_i2c_client(component->dev);
2673
2674        snd_soc_component_update_bits(component, WM8996_INTERRUPT_CONTROL,
2675                            WM8996_IM_IRQ, WM8996_IM_IRQ);
2676
2677        if (i2c->irq)
2678                free_irq(i2c->irq, component);
2679}
2680
2681static const struct snd_soc_component_driver soc_component_dev_wm8996 = {
2682        .probe                  = wm8996_probe,
2683        .remove                 = wm8996_remove,
2684        .set_bias_level         = wm8996_set_bias_level,
2685        .seq_notifier           = wm8996_seq_notifier,
2686        .controls               = wm8996_snd_controls,
2687        .num_controls           = ARRAY_SIZE(wm8996_snd_controls),
2688        .dapm_widgets           = wm8996_dapm_widgets,
2689        .num_dapm_widgets       = ARRAY_SIZE(wm8996_dapm_widgets),
2690        .dapm_routes            = wm8996_dapm_routes,
2691        .num_dapm_routes        = ARRAY_SIZE(wm8996_dapm_routes),
2692        .set_pll                = wm8996_set_fll,
2693        .use_pmdown_time        = 1,
2694        .endianness             = 1,
2695        .non_legacy_dai_naming  = 1,
2696
2697};
2698
2699#define WM8996_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
2700                      SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
2701                      SNDRV_PCM_RATE_48000)
2702#define WM8996_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
2703                        SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |\
2704                        SNDRV_PCM_FMTBIT_S32_LE)
2705
2706static const struct snd_soc_dai_ops wm8996_dai_ops = {
2707        .set_fmt = wm8996_set_fmt,
2708        .hw_params = wm8996_hw_params,
2709        .set_sysclk = wm8996_set_sysclk,
2710};
2711
2712static struct snd_soc_dai_driver wm8996_dai[] = {
2713        {
2714                .name = "wm8996-aif1",
2715                .playback = {
2716                        .stream_name = "AIF1 Playback",
2717                        .channels_min = 1,
2718                        .channels_max = 6,
2719                        .rates = WM8996_RATES,
2720                        .formats = WM8996_FORMATS,
2721                        .sig_bits = 24,
2722                },
2723                .capture = {
2724                         .stream_name = "AIF1 Capture",
2725                         .channels_min = 1,
2726                         .channels_max = 6,
2727                         .rates = WM8996_RATES,
2728                         .formats = WM8996_FORMATS,
2729                         .sig_bits = 24,
2730                 },
2731                .ops = &wm8996_dai_ops,
2732        },
2733        {
2734                .name = "wm8996-aif2",
2735                .playback = {
2736                        .stream_name = "AIF2 Playback",
2737                        .channels_min = 1,
2738                        .channels_max = 2,
2739                        .rates = WM8996_RATES,
2740                        .formats = WM8996_FORMATS,
2741                        .sig_bits = 24,
2742                },
2743                .capture = {
2744                         .stream_name = "AIF2 Capture",
2745                         .channels_min = 1,
2746                         .channels_max = 2,
2747                         .rates = WM8996_RATES,
2748                         .formats = WM8996_FORMATS,
2749                        .sig_bits = 24,
2750                 },
2751                .ops = &wm8996_dai_ops,
2752        },
2753};
2754
2755static int wm8996_i2c_probe(struct i2c_client *i2c,
2756                            const struct i2c_device_id *id)
2757{
2758        struct wm8996_priv *wm8996;
2759        int ret, i;
2760        unsigned int reg;
2761
2762        wm8996 = devm_kzalloc(&i2c->dev, sizeof(struct wm8996_priv),
2763                              GFP_KERNEL);
2764        if (wm8996 == NULL)
2765                return -ENOMEM;
2766
2767        i2c_set_clientdata(i2c, wm8996);
2768        wm8996->dev = &i2c->dev;
2769
2770        if (dev_get_platdata(&i2c->dev))
2771                memcpy(&wm8996->pdata, dev_get_platdata(&i2c->dev),
2772                       sizeof(wm8996->pdata));
2773
2774        if (wm8996->pdata.ldo_ena > 0) {
2775                ret = gpio_request_one(wm8996->pdata.ldo_ena,
2776                                       GPIOF_OUT_INIT_LOW, "WM8996 ENA");
2777                if (ret < 0) {
2778                        dev_err(&i2c->dev, "Failed to request GPIO %d: %d\n",
2779                                wm8996->pdata.ldo_ena, ret);
2780                        goto err;
2781                }
2782        }
2783
2784        for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++)
2785                wm8996->supplies[i].supply = wm8996_supply_names[i];
2786
2787        ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8996->supplies),
2788                                      wm8996->supplies);
2789        if (ret != 0) {
2790                dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
2791                goto err_gpio;
2792        }
2793
2794        wm8996->disable_nb[0].notifier_call = wm8996_regulator_event_0;
2795        wm8996->disable_nb[1].notifier_call = wm8996_regulator_event_1;
2796        wm8996->disable_nb[2].notifier_call = wm8996_regulator_event_2;
2797
2798        /* This should really be moved into the regulator core */
2799        for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) {
2800                ret = devm_regulator_register_notifier(
2801                                                wm8996->supplies[i].consumer,
2802                                                &wm8996->disable_nb[i]);
2803                if (ret != 0) {
2804                        dev_err(&i2c->dev,
2805                                "Failed to register regulator notifier: %d\n",
2806                                ret);
2807                }
2808        }
2809
2810        ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies),
2811                                    wm8996->supplies);
2812        if (ret != 0) {
2813                dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
2814                goto err_gpio;
2815        }
2816
2817        if (wm8996->pdata.ldo_ena > 0) {
2818                gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 1);
2819                msleep(5);
2820        }
2821
2822        wm8996->regmap = devm_regmap_init_i2c(i2c, &wm8996_regmap);
2823        if (IS_ERR(wm8996->regmap)) {
2824                ret = PTR_ERR(wm8996->regmap);
2825                dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
2826                goto err_enable;
2827        }
2828
2829        ret = regmap_read(wm8996->regmap, WM8996_SOFTWARE_RESET, &reg);
2830        if (ret < 0) {
2831                dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret);
2832                goto err_regmap;
2833        }
2834        if (reg != 0x8915) {
2835                dev_err(&i2c->dev, "Device is not a WM8996, ID %x\n", reg);
2836                ret = -EINVAL;
2837                goto err_regmap;
2838        }
2839
2840        ret = regmap_read(wm8996->regmap, WM8996_CHIP_REVISION, &reg);
2841        if (ret < 0) {
2842                dev_err(&i2c->dev, "Failed to read device revision: %d\n",
2843                        ret);
2844                goto err_regmap;
2845        }
2846
2847        dev_info(&i2c->dev, "revision %c\n",
2848                 (reg & WM8996_CHIP_REV_MASK) + 'A');
2849
2850        if (wm8996->pdata.ldo_ena > 0) {
2851                gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
2852                regcache_cache_only(wm8996->regmap, true);
2853        } else {
2854                ret = regmap_write(wm8996->regmap, WM8996_SOFTWARE_RESET,
2855                                   0x8915);
2856                if (ret != 0) {
2857                        dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
2858                        goto err_regmap;
2859                }
2860        }
2861
2862        regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies);
2863
2864        /* Apply platform data settings */
2865        regmap_update_bits(wm8996->regmap, WM8996_LINE_INPUT_CONTROL,
2866                           WM8996_INL_MODE_MASK | WM8996_INR_MODE_MASK,
2867                           wm8996->pdata.inl_mode << WM8996_INL_MODE_SHIFT |
2868                           wm8996->pdata.inr_mode);
2869
2870        for (i = 0; i < ARRAY_SIZE(wm8996->pdata.gpio_default); i++) {
2871                if (!wm8996->pdata.gpio_default[i])
2872                        continue;
2873
2874                regmap_write(wm8996->regmap, WM8996_GPIO_1 + i,
2875                             wm8996->pdata.gpio_default[i] & 0xffff);
2876        }
2877
2878        if (wm8996->pdata.spkmute_seq)
2879                regmap_update_bits(wm8996->regmap,
2880                                   WM8996_PDM_SPEAKER_MUTE_SEQUENCE,
2881                                   WM8996_SPK_MUTE_ENDIAN |
2882                                   WM8996_SPK_MUTE_SEQ1_MASK,
2883                                   wm8996->pdata.spkmute_seq);
2884
2885        regmap_update_bits(wm8996->regmap, WM8996_ACCESSORY_DETECT_MODE_2,
2886                           WM8996_MICD_BIAS_SRC | WM8996_HPOUT1FB_SRC |
2887                           WM8996_MICD_SRC, wm8996->pdata.micdet_def);
2888
2889        /* Latch volume update bits */
2890        regmap_update_bits(wm8996->regmap, WM8996_LEFT_LINE_INPUT_VOLUME,
2891                           WM8996_IN1_VU, WM8996_IN1_VU);
2892        regmap_update_bits(wm8996->regmap, WM8996_RIGHT_LINE_INPUT_VOLUME,
2893                           WM8996_IN1_VU, WM8996_IN1_VU);
2894
2895        regmap_update_bits(wm8996->regmap, WM8996_DAC1_LEFT_VOLUME,
2896                           WM8996_DAC1_VU, WM8996_DAC1_VU);
2897        regmap_update_bits(wm8996->regmap, WM8996_DAC1_RIGHT_VOLUME,
2898                           WM8996_DAC1_VU, WM8996_DAC1_VU);
2899        regmap_update_bits(wm8996->regmap, WM8996_DAC2_LEFT_VOLUME,
2900                           WM8996_DAC2_VU, WM8996_DAC2_VU);
2901        regmap_update_bits(wm8996->regmap, WM8996_DAC2_RIGHT_VOLUME,
2902                           WM8996_DAC2_VU, WM8996_DAC2_VU);
2903
2904        regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_LEFT_VOLUME,
2905                           WM8996_DAC1_VU, WM8996_DAC1_VU);
2906        regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_RIGHT_VOLUME,
2907                           WM8996_DAC1_VU, WM8996_DAC1_VU);
2908        regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_LEFT_VOLUME,
2909                           WM8996_DAC2_VU, WM8996_DAC2_VU);
2910        regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_RIGHT_VOLUME,
2911                           WM8996_DAC2_VU, WM8996_DAC2_VU);
2912
2913        regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_LEFT_VOLUME,
2914                           WM8996_DSP1TX_VU, WM8996_DSP1TX_VU);
2915        regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_RIGHT_VOLUME,
2916                           WM8996_DSP1TX_VU, WM8996_DSP1TX_VU);
2917        regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_LEFT_VOLUME,
2918                           WM8996_DSP2TX_VU, WM8996_DSP2TX_VU);
2919        regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_RIGHT_VOLUME,
2920                           WM8996_DSP2TX_VU, WM8996_DSP2TX_VU);
2921
2922        regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_LEFT_VOLUME,
2923                           WM8996_DSP1RX_VU, WM8996_DSP1RX_VU);
2924        regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_RIGHT_VOLUME,
2925                           WM8996_DSP1RX_VU, WM8996_DSP1RX_VU);
2926        regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_LEFT_VOLUME,
2927                           WM8996_DSP2RX_VU, WM8996_DSP2RX_VU);
2928        regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_RIGHT_VOLUME,
2929                           WM8996_DSP2RX_VU, WM8996_DSP2RX_VU);
2930
2931        /* No support currently for the underclocked TDM modes and
2932         * pick a default TDM layout with each channel pair working with
2933         * slots 0 and 1. */
2934        regmap_update_bits(wm8996->regmap,
2935                           WM8996_AIF1RX_CHANNEL_0_CONFIGURATION,
2936                           WM8996_AIF1RX_CHAN0_SLOTS_MASK |
2937                           WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2938                           1 << WM8996_AIF1RX_CHAN0_SLOTS_SHIFT | 0);
2939        regmap_update_bits(wm8996->regmap,
2940                           WM8996_AIF1RX_CHANNEL_1_CONFIGURATION,
2941                           WM8996_AIF1RX_CHAN1_SLOTS_MASK |
2942                           WM8996_AIF1RX_CHAN1_START_SLOT_MASK,
2943                           1 << WM8996_AIF1RX_CHAN1_SLOTS_SHIFT | 1);
2944        regmap_update_bits(wm8996->regmap,
2945                           WM8996_AIF1RX_CHANNEL_2_CONFIGURATION,
2946                           WM8996_AIF1RX_CHAN2_SLOTS_MASK |
2947                           WM8996_AIF1RX_CHAN2_START_SLOT_MASK,
2948                           1 << WM8996_AIF1RX_CHAN2_SLOTS_SHIFT | 0);
2949        regmap_update_bits(wm8996->regmap,
2950                           WM8996_AIF1RX_CHANNEL_3_CONFIGURATION,
2951                           WM8996_AIF1RX_CHAN3_SLOTS_MASK |
2952                           WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2953                           1 << WM8996_AIF1RX_CHAN3_SLOTS_SHIFT | 1);
2954        regmap_update_bits(wm8996->regmap,
2955                           WM8996_AIF1RX_CHANNEL_4_CONFIGURATION,
2956                           WM8996_AIF1RX_CHAN4_SLOTS_MASK |
2957                           WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2958                           1 << WM8996_AIF1RX_CHAN4_SLOTS_SHIFT | 0);
2959        regmap_update_bits(wm8996->regmap,
2960                           WM8996_AIF1RX_CHANNEL_5_CONFIGURATION,
2961                           WM8996_AIF1RX_CHAN5_SLOTS_MASK |
2962                           WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2963                           1 << WM8996_AIF1RX_CHAN5_SLOTS_SHIFT | 1);
2964
2965        regmap_update_bits(wm8996->regmap,
2966                           WM8996_AIF2RX_CHANNEL_0_CONFIGURATION,
2967                           WM8996_AIF2RX_CHAN0_SLOTS_MASK |
2968                           WM8996_AIF2RX_CHAN0_START_SLOT_MASK,
2969                           1 << WM8996_AIF2RX_CHAN0_SLOTS_SHIFT | 0);
2970        regmap_update_bits(wm8996->regmap,
2971                           WM8996_AIF2RX_CHANNEL_1_CONFIGURATION,
2972                           WM8996_AIF2RX_CHAN1_SLOTS_MASK |
2973                           WM8996_AIF2RX_CHAN1_START_SLOT_MASK,
2974                           1 << WM8996_AIF2RX_CHAN1_SLOTS_SHIFT | 1);
2975
2976        regmap_update_bits(wm8996->regmap,
2977                           WM8996_AIF1TX_CHANNEL_0_CONFIGURATION,
2978                           WM8996_AIF1TX_CHAN0_SLOTS_MASK |
2979                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2980                           1 << WM8996_AIF1TX_CHAN0_SLOTS_SHIFT | 0);
2981        regmap_update_bits(wm8996->regmap,
2982                           WM8996_AIF1TX_CHANNEL_1_CONFIGURATION,
2983                           WM8996_AIF1TX_CHAN1_SLOTS_MASK |
2984                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2985                           1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1);
2986        regmap_update_bits(wm8996->regmap,
2987                           WM8996_AIF1TX_CHANNEL_2_CONFIGURATION,
2988                           WM8996_AIF1TX_CHAN2_SLOTS_MASK |
2989                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2990                           1 << WM8996_AIF1TX_CHAN2_SLOTS_SHIFT | 0);
2991        regmap_update_bits(wm8996->regmap,
2992                           WM8996_AIF1TX_CHANNEL_3_CONFIGURATION,
2993                           WM8996_AIF1TX_CHAN3_SLOTS_MASK |
2994                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2995                           1 << WM8996_AIF1TX_CHAN3_SLOTS_SHIFT | 1);
2996        regmap_update_bits(wm8996->regmap,
2997                           WM8996_AIF1TX_CHANNEL_4_CONFIGURATION,
2998                           WM8996_AIF1TX_CHAN4_SLOTS_MASK |
2999                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
3000                           1 << WM8996_AIF1TX_CHAN4_SLOTS_SHIFT | 0);
3001        regmap_update_bits(wm8996->regmap,
3002                           WM8996_AIF1TX_CHANNEL_5_CONFIGURATION,
3003                           WM8996_AIF1TX_CHAN5_SLOTS_MASK |
3004                           WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
3005                           1 << WM8996_AIF1TX_CHAN5_SLOTS_SHIFT | 1);
3006
3007        regmap_update_bits(wm8996->regmap,
3008                           WM8996_AIF2TX_CHANNEL_0_CONFIGURATION,
3009                           WM8996_AIF2TX_CHAN0_SLOTS_MASK |
3010                           WM8996_AIF2TX_CHAN0_START_SLOT_MASK,
3011                           1 << WM8996_AIF2TX_CHAN0_SLOTS_SHIFT | 0);
3012        regmap_update_bits(wm8996->regmap,
3013                           WM8996_AIF1TX_CHANNEL_1_CONFIGURATION,
3014                           WM8996_AIF2TX_CHAN1_SLOTS_MASK |
3015                           WM8996_AIF2TX_CHAN1_START_SLOT_MASK,
3016                           1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1);
3017
3018        /* If the TX LRCLK pins are not in LRCLK mode configure the
3019         * AIFs to source their clocks from the RX LRCLKs.
3020         */
3021        ret = regmap_read(wm8996->regmap, WM8996_GPIO_1, &reg);
3022        if (ret != 0) {
3023                dev_err(&i2c->dev, "Failed to read GPIO1: %d\n", ret);
3024                goto err_regmap;
3025        }
3026
3027        if (reg & WM8996_GP1_FN_MASK)
3028                regmap_update_bits(wm8996->regmap, WM8996_AIF1_TX_LRCLK_2,
3029                                   WM8996_AIF1TX_LRCLK_MODE,
3030                                   WM8996_AIF1TX_LRCLK_MODE);
3031
3032        ret = regmap_read(wm8996->regmap, WM8996_GPIO_2, &reg);
3033        if (ret != 0) {
3034                dev_err(&i2c->dev, "Failed to read GPIO2: %d\n", ret);
3035                goto err_regmap;
3036        }
3037
3038        if (reg & WM8996_GP2_FN_MASK)
3039                regmap_update_bits(wm8996->regmap, WM8996_AIF2_TX_LRCLK_2,
3040                                   WM8996_AIF2TX_LRCLK_MODE,
3041                                   WM8996_AIF2TX_LRCLK_MODE);
3042
3043        wm8996_init_gpio(wm8996);
3044
3045        ret = devm_snd_soc_register_component(&i2c->dev,
3046                                     &soc_component_dev_wm8996, wm8996_dai,
3047                                     ARRAY_SIZE(wm8996_dai));
3048        if (ret < 0)
3049                goto err_gpiolib;
3050
3051        return ret;
3052
3053err_gpiolib:
3054        wm8996_free_gpio(wm8996);
3055err_regmap:
3056err_enable:
3057        if (wm8996->pdata.ldo_ena > 0)
3058                gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
3059        regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies);
3060err_gpio:
3061        if (wm8996->pdata.ldo_ena > 0)
3062                gpio_free(wm8996->pdata.ldo_ena);
3063err:
3064
3065        return ret;
3066}
3067
3068static int wm8996_i2c_remove(struct i2c_client *client)
3069{
3070        struct wm8996_priv *wm8996 = i2c_get_clientdata(client);
3071
3072        wm8996_free_gpio(wm8996);
3073        if (wm8996->pdata.ldo_ena > 0) {
3074                gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
3075                gpio_free(wm8996->pdata.ldo_ena);
3076        }
3077
3078        return 0;
3079}
3080
3081static const struct i2c_device_id wm8996_i2c_id[] = {
3082        { "wm8996", 0 },
3083        { }
3084};
3085MODULE_DEVICE_TABLE(i2c, wm8996_i2c_id);
3086
3087static struct i2c_driver wm8996_i2c_driver = {
3088        .driver = {
3089                .name = "wm8996",
3090        },
3091        .probe =    wm8996_i2c_probe,
3092        .remove =   wm8996_i2c_remove,
3093        .id_table = wm8996_i2c_id,
3094};
3095
3096module_i2c_driver(wm8996_i2c_driver);
3097
3098MODULE_DESCRIPTION("ASoC WM8996 driver");
3099MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
3100MODULE_LICENSE("GPL");
3101