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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ALSA SoC WM9090 driver4 *5 * Copyright 2009-12 Wolfson Microelectronics6 *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_read(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_read(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 the259 * ability to save the state since we don't have full260 * control of the analogue paths and they can change261 * DC offsets; see the WM8904 driver for an example of262 * 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 there460 * 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 of489 * ground referenced outputs and class D speaker mean that490 * 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 we508 * 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};547 548static const struct regmap_config wm9090_regmap = {549 .reg_bits = 8,550 .val_bits = 16,551 552 .max_register = WM9090_MAX_REGISTER,553 .volatile_reg = wm9090_volatile,554 .readable_reg = wm9090_readable,555 556 .cache_type = REGCACHE_MAPLE,557 .reg_defaults = wm9090_reg_defaults,558 .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),559};560 561 562static int wm9090_i2c_probe(struct i2c_client *i2c)563{564 struct wm9090_priv *wm9090;565 unsigned int reg;566 int ret;567 568 wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);569 if (!wm9090)570 return -ENOMEM;571 572 wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);573 if (IS_ERR(wm9090->regmap)) {574 ret = PTR_ERR(wm9090->regmap);575 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);576 return ret;577 }578 579 ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®);580 if (ret < 0)581 return ret;582 583 if (reg != 0x9093) {584 dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);585 return -ENODEV;586 }587 588 ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);589 if (ret < 0)590 return ret;591 592 if (i2c->dev.platform_data)593 memcpy(&wm9090->pdata, i2c->dev.platform_data,594 sizeof(wm9090->pdata));595 596 i2c_set_clientdata(i2c, wm9090);597 598 ret = devm_snd_soc_register_component(&i2c->dev,599 &soc_component_dev_wm9090, NULL, 0);600 if (ret != 0) {601 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);602 return ret;603 }604 605 return 0;606}607 608static const struct i2c_device_id wm9090_id[] = {609 { "wm9090" },610 { "wm9093" },611 { }612};613MODULE_DEVICE_TABLE(i2c, wm9090_id);614 615static struct i2c_driver wm9090_i2c_driver = {616 .driver = {617 .name = "wm9090",618 },619 .probe = wm9090_i2c_probe,620 .id_table = wm9090_id,621};622 623module_i2c_driver(wm9090_i2c_driver);624 625MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");626MODULE_DESCRIPTION("WM9090 ASoC driver");627MODULE_LICENSE("GPL");628