linux/sound/soc/codecs/wm9090.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * ALSA SoC WM9090 driver
   4 *
   5 * Copyright 2009-12 Wolfson Microelectronics
   6 *
   7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   8 */
   9
  10#include <linux/module.h>
  11#include <linux/errno.h>
  12#include <linux/device.h>
  13#include <linux/i2c.h>
  14#include <linux/delay.h>
  15#include <linux/regmap.h>
  16#include <linux/slab.h>
  17#include <sound/initval.h>
  18#include <sound/soc.h>
  19#include <sound/tlv.h>
  20#include <sound/wm9090.h>
  21
  22#include "wm9090.h"
  23
  24static const struct reg_default wm9090_reg_defaults[] = {
  25        { 1,  0x0006 },     /* R1   - Power Management (1) */
  26        { 2,  0x6000 },     /* R2   - Power Management (2) */
  27        { 3,  0x0000 },     /* R3   - Power Management (3) */
  28        { 6,  0x01C0 },     /* R6   - Clocking 1 */
  29        { 22, 0x0003 },     /* R22  - IN1 Line Control */
  30        { 23, 0x0003 },     /* R23  - IN2 Line Control */
  31        { 24, 0x0083 },     /* R24  - IN1 Line Input A Volume */
  32        { 25, 0x0083 },     /* R25  - IN1  Line Input B Volume */
  33        { 26, 0x0083 },     /* R26  - IN2 Line Input A Volume */
  34        { 27, 0x0083 },     /* R27  - IN2 Line Input B Volume */
  35        { 28, 0x002D },     /* R28  - Left Output Volume */
  36        { 29, 0x002D },     /* R29  - Right Output Volume */
  37        { 34, 0x0100 },     /* R34  - SPKMIXL Attenuation */
  38        { 35, 0x0010 },     /* R36  - SPKOUT Mixers */
  39        { 37, 0x0140 },     /* R37  - ClassD3 */
  40        { 38, 0x0039 },     /* R38  - Speaker Volume Left */
  41        { 45, 0x0000 },     /* R45  - Output Mixer1 */
  42        { 46, 0x0000 },     /* R46  - Output Mixer2 */
  43        { 47, 0x0100 },     /* R47  - Output Mixer3 */
  44        { 48, 0x0100 },     /* R48  - Output Mixer4 */
  45        { 54, 0x0000 },     /* R54  - Speaker Mixer */
  46        { 57, 0x000D },     /* R57  - AntiPOP2 */
  47        { 70, 0x0000 },     /* R70  - Write Sequencer 0 */
  48        { 71, 0x0000 },     /* R71  - Write Sequencer 1 */
  49        { 72, 0x0000 },     /* R72  - Write Sequencer 2 */
  50        { 73, 0x0000 },     /* R73  - Write Sequencer 3 */
  51        { 74, 0x0000 },     /* R74  - Write Sequencer 4 */
  52        { 75, 0x0000 },     /* R75  - Write Sequencer 5 */
  53        { 76, 0x1F25 },     /* R76  - Charge Pump 1 */
  54        { 85, 0x054A },     /* R85  - DC Servo 1 */
  55        { 87, 0x0000 },     /* R87  - DC Servo 3 */
  56        { 96, 0x0100 },     /* R96  - Analogue HP 0 */
  57        { 98, 0x8640 },     /* R98  - AGC Control 0 */
  58        { 99, 0xC000 },     /* R99  - AGC Control 1 */
  59        { 100, 0x0200 },     /* R100 - AGC Control 2 */
  60};
  61
  62/* This struct is used to save the context */
  63struct wm9090_priv {
  64        struct wm9090_platform_data pdata;
  65        struct regmap *regmap;
  66};
  67
  68static bool wm9090_volatile(struct device *dev, unsigned int reg)
  69{
  70        switch (reg) {
  71        case WM9090_SOFTWARE_RESET:
  72        case WM9090_DC_SERVO_0:
  73        case WM9090_DC_SERVO_READBACK_0:
  74        case WM9090_DC_SERVO_READBACK_1:
  75        case WM9090_DC_SERVO_READBACK_2:
  76                return true;
  77
  78        default:
  79                return false;
  80        }
  81}
  82
  83static bool wm9090_readable(struct device *dev, unsigned int reg)
  84{
  85        switch (reg) {
  86        case WM9090_SOFTWARE_RESET:
  87        case WM9090_POWER_MANAGEMENT_1:
  88        case WM9090_POWER_MANAGEMENT_2:
  89        case WM9090_POWER_MANAGEMENT_3:
  90        case WM9090_CLOCKING_1:
  91        case WM9090_IN1_LINE_CONTROL:
  92        case WM9090_IN2_LINE_CONTROL:
  93        case WM9090_IN1_LINE_INPUT_A_VOLUME:
  94        case WM9090_IN1_LINE_INPUT_B_VOLUME:
  95        case WM9090_IN2_LINE_INPUT_A_VOLUME:
  96        case WM9090_IN2_LINE_INPUT_B_VOLUME:
  97        case WM9090_LEFT_OUTPUT_VOLUME:
  98        case WM9090_RIGHT_OUTPUT_VOLUME:
  99        case WM9090_SPKMIXL_ATTENUATION:
 100        case WM9090_SPKOUT_MIXERS:
 101        case WM9090_CLASSD3:
 102        case WM9090_SPEAKER_VOLUME_LEFT:
 103        case WM9090_OUTPUT_MIXER1:
 104        case WM9090_OUTPUT_MIXER2:
 105        case WM9090_OUTPUT_MIXER3:
 106        case WM9090_OUTPUT_MIXER4:
 107        case WM9090_SPEAKER_MIXER:
 108        case WM9090_ANTIPOP2:
 109        case WM9090_WRITE_SEQUENCER_0:
 110        case WM9090_WRITE_SEQUENCER_1:
 111        case WM9090_WRITE_SEQUENCER_2:
 112        case WM9090_WRITE_SEQUENCER_3:
 113        case WM9090_WRITE_SEQUENCER_4:
 114        case WM9090_WRITE_SEQUENCER_5:
 115        case WM9090_CHARGE_PUMP_1:
 116        case WM9090_DC_SERVO_0:
 117        case WM9090_DC_SERVO_1:
 118        case WM9090_DC_SERVO_3:
 119        case WM9090_DC_SERVO_READBACK_0:
 120        case WM9090_DC_SERVO_READBACK_1:
 121        case WM9090_DC_SERVO_READBACK_2:
 122        case WM9090_ANALOGUE_HP_0:
 123        case WM9090_AGC_CONTROL_0:
 124        case WM9090_AGC_CONTROL_1:
 125        case WM9090_AGC_CONTROL_2:
 126                return true;
 127
 128        default:
 129                return false;
 130        }
 131}
 132
 133static void wait_for_dc_servo(struct snd_soc_component *component)
 134{
 135        unsigned int reg;
 136        int count = 0;
 137
 138        dev_dbg(component->dev, "Waiting for DC servo...\n");
 139        do {
 140                count++;
 141                msleep(1);
 142                reg = snd_soc_component_read32(component, WM9090_DC_SERVO_READBACK_0);
 143                dev_dbg(component->dev, "DC servo status: %x\n", reg);
 144        } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
 145                 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
 146
 147        if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
 148            != WM9090_DCS_CAL_COMPLETE_MASK)
 149                dev_err(component->dev, "Timed out waiting for DC Servo\n");
 150}
 151
 152static const DECLARE_TLV_DB_RANGE(in_tlv,
 153        0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
 154        1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
 155        4, 6, TLV_DB_SCALE_ITEM(600, 600, 0)
 156);
 157static const DECLARE_TLV_DB_RANGE(mix_tlv,
 158        0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
 159        3, 3, TLV_DB_SCALE_ITEM(0, 0, 0)
 160);
 161static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
 162static const DECLARE_TLV_DB_RANGE(spkboost_tlv,
 163        0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
 164        7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0)
 165);
 166
 167static const struct snd_kcontrol_new wm9090_controls[] = {
 168SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
 169               in_tlv),
 170SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
 171SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
 172
 173SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
 174               in_tlv),
 175SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
 176SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
 177
 178SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
 179SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
 180               mix_tlv),
 181SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
 182               mix_tlv),
 183
 184SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
 185SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
 186               mix_tlv),
 187SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
 188               mix_tlv),
 189
 190SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
 191SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
 192               mix_tlv),
 193SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
 194               mix_tlv),
 195
 196SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
 197                 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
 198SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
 199             WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
 200SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
 201             WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
 202
 203SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
 204               out_tlv),
 205SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
 206SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
 207SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
 208};
 209
 210static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
 211SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
 212               in_tlv),
 213SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
 214SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
 215
 216SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
 217               mix_tlv),
 218SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
 219               mix_tlv),
 220SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
 221               mix_tlv),
 222};
 223
 224static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
 225SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
 226               in_tlv),
 227SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
 228SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
 229
 230SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
 231               mix_tlv),
 232SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
 233               mix_tlv),
 234SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
 235               mix_tlv),
 236};
 237
 238static int hp_ev(struct snd_soc_dapm_widget *w,
 239                 struct snd_kcontrol *kcontrol, int event)
 240{
 241        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 242        unsigned int reg = snd_soc_component_read32(component, WM9090_ANALOGUE_HP_0);
 243
 244        switch (event) {
 245        case SND_SOC_DAPM_POST_PMU:
 246                snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
 247                                    WM9090_CP_ENA, WM9090_CP_ENA);
 248
 249                msleep(5);
 250
 251                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
 252                                    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
 253                                    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
 254
 255                reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
 256                snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
 257
 258                /* Start the DC servo.  We don't currently use the
 259                 * ability to save the state since we don't have full
 260                 * control of the analogue paths and they can change
 261                 * DC offsets; see the WM8904 driver for an example of
 262                 * doing so.
 263                 */
 264                snd_soc_component_write(component, WM9090_DC_SERVO_0,
 265                              WM9090_DCS_ENA_CHAN_0 |
 266                              WM9090_DCS_ENA_CHAN_1 |
 267                              WM9090_DCS_TRIG_STARTUP_1 |
 268                              WM9090_DCS_TRIG_STARTUP_0);
 269                wait_for_dc_servo(component);
 270
 271                reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
 272                        WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
 273                snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
 274                break;
 275
 276        case SND_SOC_DAPM_PRE_PMD:
 277                reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
 278                         WM9090_HPOUT1L_DLY |
 279                         WM9090_HPOUT1L_OUTP |
 280                         WM9090_HPOUT1R_RMV_SHORT |
 281                         WM9090_HPOUT1R_DLY |
 282                         WM9090_HPOUT1R_OUTP);
 283
 284                snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
 285
 286                snd_soc_component_write(component, WM9090_DC_SERVO_0, 0);
 287
 288                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
 289                                    WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
 290                                    0);
 291
 292                snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
 293                                    WM9090_CP_ENA, 0);
 294                break;
 295        }
 296
 297        return 0;
 298}
 299
 300static const struct snd_kcontrol_new spkmix[] = {
 301SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
 302SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
 303SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
 304SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
 305};
 306
 307static const struct snd_kcontrol_new spkout[] = {
 308SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
 309};
 310
 311static const struct snd_kcontrol_new mixoutl[] = {
 312SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
 313SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
 314SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
 315SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
 316};
 317
 318static const struct snd_kcontrol_new mixoutr[] = {
 319SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
 320SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
 321SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
 322SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
 323};
 324
 325static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
 326SND_SOC_DAPM_INPUT("IN1+"),
 327SND_SOC_DAPM_INPUT("IN1-"),
 328SND_SOC_DAPM_INPUT("IN2+"),
 329SND_SOC_DAPM_INPUT("IN2-"),
 330
 331SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
 332
 333SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
 334SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
 335SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
 336SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
 337
 338SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
 339                   spkmix, ARRAY_SIZE(spkmix)),
 340SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
 341                   mixoutl, ARRAY_SIZE(mixoutl)),
 342SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
 343                   mixoutr, ARRAY_SIZE(mixoutr)),
 344
 345SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
 346                   hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 347
 348SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
 349SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
 350                   spkout, ARRAY_SIZE(spkout)),
 351
 352SND_SOC_DAPM_OUTPUT("HPR"),
 353SND_SOC_DAPM_OUTPUT("HPL"),
 354SND_SOC_DAPM_OUTPUT("Speaker"),
 355};
 356
 357static const struct snd_soc_dapm_route audio_map[] = {
 358        { "IN1A PGA", NULL, "IN1+" },
 359        { "IN2A PGA", NULL, "IN2+" },
 360
 361        { "SPKMIX", "IN1A Switch", "IN1A PGA" },
 362        { "SPKMIX", "IN2A Switch", "IN2A PGA" },
 363
 364        { "MIXOUTL", "IN1A Switch", "IN1A PGA" },
 365        { "MIXOUTL", "IN2A Switch", "IN2A PGA" },
 366
 367        { "MIXOUTR", "IN1A Switch", "IN1A PGA" },
 368        { "MIXOUTR", "IN2A Switch", "IN2A PGA" },
 369
 370        { "HP PGA", NULL, "OSC" },
 371        { "HP PGA", NULL, "MIXOUTL" },
 372        { "HP PGA", NULL, "MIXOUTR" },
 373
 374        { "HPL", NULL, "HP PGA" },
 375        { "HPR", NULL, "HP PGA" },
 376
 377        { "SPKPGA", NULL, "OSC" },
 378        { "SPKPGA", NULL, "SPKMIX" },
 379
 380        { "SPKOUT", "Mixer Switch", "SPKPGA" },
 381
 382        { "Speaker", NULL, "SPKOUT" },
 383};
 384
 385static const struct snd_soc_dapm_route audio_map_in1_se[] = {
 386        { "IN1B PGA", NULL, "IN1-" },   
 387
 388        { "SPKMIX", "IN1B Switch", "IN1B PGA" },
 389        { "MIXOUTL", "IN1B Switch", "IN1B PGA" },
 390        { "MIXOUTR", "IN1B Switch", "IN1B PGA" },
 391};
 392
 393static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
 394        { "IN1A PGA", NULL, "IN1-" },   
 395};
 396
 397static const struct snd_soc_dapm_route audio_map_in2_se[] = {
 398        { "IN2B PGA", NULL, "IN2-" },   
 399
 400        { "SPKMIX", "IN2B Switch", "IN2B PGA" },
 401        { "MIXOUTL", "IN2B Switch", "IN2B PGA" },
 402        { "MIXOUTR", "IN2B Switch", "IN2B PGA" },
 403};
 404
 405static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
 406        { "IN2A PGA", NULL, "IN2-" },   
 407};
 408
 409static int wm9090_add_controls(struct snd_soc_component *component)
 410{
 411        struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
 412        struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 413        int i;
 414
 415        snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
 416                                  ARRAY_SIZE(wm9090_dapm_widgets));
 417
 418        snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 419
 420        snd_soc_add_component_controls(component, wm9090_controls,
 421                             ARRAY_SIZE(wm9090_controls));
 422
 423        if (wm9090->pdata.lin1_diff) {
 424                snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
 425                                        ARRAY_SIZE(audio_map_in1_diff));
 426        } else {
 427                snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
 428                                        ARRAY_SIZE(audio_map_in1_se));
 429                snd_soc_add_component_controls(component, wm9090_in1_se_controls,
 430                                     ARRAY_SIZE(wm9090_in1_se_controls));
 431        }
 432
 433        if (wm9090->pdata.lin2_diff) {
 434                snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
 435                                        ARRAY_SIZE(audio_map_in2_diff));
 436        } else {
 437                snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
 438                                        ARRAY_SIZE(audio_map_in2_se));
 439                snd_soc_add_component_controls(component, wm9090_in2_se_controls,
 440                                     ARRAY_SIZE(wm9090_in2_se_controls));
 441        }
 442
 443        if (wm9090->pdata.agc_ena) {
 444                for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
 445                        snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i,
 446                                      wm9090->pdata.agc[i]);
 447                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
 448                                    WM9090_AGC_ENA, WM9090_AGC_ENA);
 449        } else {
 450                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
 451                                    WM9090_AGC_ENA, 0);
 452        }
 453
 454        return 0;
 455
 456}
 457
 458/*
 459 * The machine driver should call this from their set_bias_level; if there
 460 * isn't one then this can just be set as the set_bias_level function.
 461 */
 462static int wm9090_set_bias_level(struct snd_soc_component *component,
 463                                 enum snd_soc_bias_level level)
 464{
 465        struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
 466
 467        switch (level) {
 468        case SND_SOC_BIAS_ON:
 469                break;
 470
 471        case SND_SOC_BIAS_PREPARE:
 472                snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA,
 473                                    WM9090_VMID_ENA);
 474                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
 475                                    WM9090_BIAS_ENA |
 476                                    WM9090_VMID_RES_MASK,
 477                                    WM9090_BIAS_ENA |
 478                                    1 << WM9090_VMID_RES_SHIFT);
 479                msleep(1);  /* Probably an overestimate */
 480                break;
 481
 482        case SND_SOC_BIAS_STANDBY:
 483                if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
 484                        /* Restore the register cache */
 485                        regcache_sync(wm9090->regmap);
 486                }
 487
 488                /* We keep VMID off during standby since the combination of
 489                 * ground referenced outputs and class D speaker mean that
 490                 * latency is not an issue.
 491                 */
 492                snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
 493                                    WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
 494                snd_soc_component_update_bits(component, WM9090_ANTIPOP2,
 495                                    WM9090_VMID_ENA, 0);
 496                break;
 497
 498        case SND_SOC_BIAS_OFF:
 499                break;
 500        }
 501
 502        return 0;
 503}
 504
 505static int wm9090_probe(struct snd_soc_component *component)
 506{
 507        /* Configure some defaults; they will be written out when we
 508         * bring the bias up.
 509         */
 510        snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME,
 511                            WM9090_IN1_VU | WM9090_IN1A_ZC,
 512                            WM9090_IN1_VU | WM9090_IN1A_ZC);
 513        snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME,
 514                            WM9090_IN1_VU | WM9090_IN1B_ZC,
 515                            WM9090_IN1_VU | WM9090_IN1B_ZC);
 516        snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME,
 517                            WM9090_IN2_VU | WM9090_IN2A_ZC,
 518                            WM9090_IN2_VU | WM9090_IN2A_ZC);
 519        snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME,
 520                            WM9090_IN2_VU | WM9090_IN2B_ZC,
 521                            WM9090_IN2_VU | WM9090_IN2B_ZC);
 522        snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT,
 523                            WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC,
 524                            WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC);
 525        snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME,
 526                            WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC,
 527                            WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC);
 528        snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME,
 529                            WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC,
 530                            WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC);
 531
 532        snd_soc_component_update_bits(component, WM9090_CLOCKING_1,
 533                            WM9090_TOCLK_ENA, WM9090_TOCLK_ENA);
 534
 535        wm9090_add_controls(component);
 536
 537        return 0;
 538}
 539
 540static const struct snd_soc_component_driver soc_component_dev_wm9090 = {
 541        .probe                  = wm9090_probe,
 542        .set_bias_level         = wm9090_set_bias_level,
 543        .suspend_bias_off       = 1,
 544        .idle_bias_on           = 1,
 545        .use_pmdown_time        = 1,
 546        .endianness             = 1,
 547        .non_legacy_dai_naming  = 1,
 548};
 549
 550static const struct regmap_config wm9090_regmap = {
 551        .reg_bits = 8,
 552        .val_bits = 16,
 553
 554        .max_register = WM9090_MAX_REGISTER,
 555        .volatile_reg = wm9090_volatile,
 556        .readable_reg = wm9090_readable,
 557
 558        .cache_type = REGCACHE_RBTREE,
 559        .reg_defaults = wm9090_reg_defaults,
 560        .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),
 561};
 562
 563
 564static int wm9090_i2c_probe(struct i2c_client *i2c,
 565                            const struct i2c_device_id *id)
 566{
 567        struct wm9090_priv *wm9090;
 568        unsigned int reg;
 569        int ret;
 570
 571        wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);
 572        if (!wm9090)
 573                return -ENOMEM;
 574
 575        wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);
 576        if (IS_ERR(wm9090->regmap)) {
 577                ret = PTR_ERR(wm9090->regmap);
 578                dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
 579                return ret;
 580        }
 581
 582        ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, &reg);
 583        if (ret < 0)
 584                return ret;
 585
 586        if (reg != 0x9093) {
 587                dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);
 588                return -ENODEV;
 589        }
 590
 591        ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);
 592        if (ret < 0)
 593                return ret;
 594
 595        if (i2c->dev.platform_data)
 596                memcpy(&wm9090->pdata, i2c->dev.platform_data,
 597                       sizeof(wm9090->pdata));
 598
 599        i2c_set_clientdata(i2c, wm9090);
 600
 601        ret =  devm_snd_soc_register_component(&i2c->dev,
 602                        &soc_component_dev_wm9090,  NULL, 0);
 603        if (ret != 0) {
 604                dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
 605                return ret;
 606        }
 607
 608        return 0;
 609}
 610
 611static const struct i2c_device_id wm9090_id[] = {
 612        { "wm9090", 0 },
 613        { "wm9093", 0 },
 614        { }
 615};
 616MODULE_DEVICE_TABLE(i2c, wm9090_id);
 617
 618static struct i2c_driver wm9090_i2c_driver = {
 619        .driver = {
 620                .name = "wm9090",
 621        },
 622        .probe = wm9090_i2c_probe,
 623        .id_table = wm9090_id,
 624};
 625
 626module_i2c_driver(wm9090_i2c_driver);
 627
 628MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 629MODULE_DESCRIPTION("WM9090 ASoC driver");
 630MODULE_LICENSE("GPL");
 631