1// SPDX-License-Identifier: GPL-2.0 2// Copyright (c) 2017, Maxim Integrated 3 4#include <linux/acpi.h> 5#include <linux/delay.h> 6#include <linux/i2c.h> 7#include <linux/module.h> 8#include <linux/pm_runtime.h> 9#include <linux/regmap.h> 10#include <linux/slab.h> 11#include <linux/cdev.h> 12#include <sound/pcm.h> 13#include <sound/pcm_params.h> 14#include <sound/soc.h> 15#include <linux/gpio/consumer.h> 16#include <linux/of.h> 17#include <sound/tlv.h> 18#include "max98373.h" 19 20static int max98373_dac_event(struct snd_soc_dapm_widget *w, 21 struct snd_kcontrol *kcontrol, int event) 22{ 23 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 24 struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); 25 26 switch (event) { 27 case SND_SOC_DAPM_POST_PMU: 28 regmap_update_bits(max98373->regmap, 29 MAX98373_R20FF_GLOBAL_SHDN, 30 MAX98373_GLOBAL_EN_MASK, 1); 31 usleep_range(30000, 31000); 32 break; 33 case SND_SOC_DAPM_PRE_PMD: 34 regmap_update_bits(max98373->regmap, 35 MAX98373_R20FF_GLOBAL_SHDN, 36 MAX98373_GLOBAL_EN_MASK, 0); 37 usleep_range(30000, 31000); 38 max98373->tdm_mode = false; 39 break; 40 default: 41 return 0; 42 } 43 return 0; 44} 45 46static const char * const max98373_switch_text[] = { 47 "Left", "Right", "LeftRight"}; 48 49static const struct soc_enum dai_sel_enum = 50 SOC_ENUM_SINGLE(MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1, 51 MAX98373_PCM_TO_SPK_MONOMIX_CFG_SHIFT, 52 3, max98373_switch_text); 53 54static const struct snd_kcontrol_new max98373_dai_controls = 55 SOC_DAPM_ENUM("DAI Sel", dai_sel_enum); 56 57static const struct snd_kcontrol_new max98373_vi_control = 58 SOC_DAPM_SINGLE("Switch", MAX98373_R202C_PCM_TX_EN, 0, 1, 0); 59 60static const struct snd_kcontrol_new max98373_spkfb_control = 61 SOC_DAPM_SINGLE("Switch", MAX98373_R2043_AMP_EN, 1, 1, 0); 62 63static const struct snd_soc_dapm_widget max98373_dapm_widgets[] = { 64SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback", 65 MAX98373_R202B_PCM_RX_EN, 0, 0, max98373_dac_event, 66 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 67SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0, 68 &max98373_dai_controls), 69SND_SOC_DAPM_OUTPUT("BE_OUT"), 70SND_SOC_DAPM_AIF_OUT("Voltage Sense", "HiFi Capture", 0, 71 MAX98373_R2047_IV_SENSE_ADC_EN, 0, 0), 72SND_SOC_DAPM_AIF_OUT("Current Sense", "HiFi Capture", 0, 73 MAX98373_R2047_IV_SENSE_ADC_EN, 1, 0), 74SND_SOC_DAPM_AIF_OUT("Speaker FB Sense", "HiFi Capture", 0, 75 SND_SOC_NOPM, 0, 0), 76SND_SOC_DAPM_SWITCH("VI Sense", SND_SOC_NOPM, 0, 0, 77 &max98373_vi_control), 78SND_SOC_DAPM_SWITCH("SpkFB Sense", SND_SOC_NOPM, 0, 0, 79 &max98373_spkfb_control), 80SND_SOC_DAPM_SIGGEN("VMON"), 81SND_SOC_DAPM_SIGGEN("IMON"), 82SND_SOC_DAPM_SIGGEN("FBMON"), 83}; 84 85static DECLARE_TLV_DB_SCALE(max98373_digital_tlv, -6350, 50, 1); 86static const DECLARE_TLV_DB_RANGE(max98373_spk_tlv, 87 0, 8, TLV_DB_SCALE_ITEM(0, 50, 0), 88 9, 10, TLV_DB_SCALE_ITEM(500, 100, 0), 89); 90static const DECLARE_TLV_DB_RANGE(max98373_spkgain_max_tlv, 91 0, 9, TLV_DB_SCALE_ITEM(800, 100, 0), 92); 93static const DECLARE_TLV_DB_RANGE(max98373_dht_step_size_tlv, 94 0, 1, TLV_DB_SCALE_ITEM(25, 25, 0), 95 2, 4, TLV_DB_SCALE_ITEM(100, 100, 0), 96); 97static const DECLARE_TLV_DB_RANGE(max98373_dht_spkgain_min_tlv, 98 0, 9, TLV_DB_SCALE_ITEM(800, 100, 0), 99); 100static const DECLARE_TLV_DB_RANGE(max98373_dht_rotation_point_tlv, 101 0, 1, TLV_DB_SCALE_ITEM(-3000, 500, 0), 102 2, 4, TLV_DB_SCALE_ITEM(-2200, 200, 0), 103 5, 6, TLV_DB_SCALE_ITEM(-1500, 300, 0), 104 7, 9, TLV_DB_SCALE_ITEM(-1000, 200, 0), 105 10, 13, TLV_DB_SCALE_ITEM(-500, 100, 0), 106 14, 15, TLV_DB_SCALE_ITEM(-100, 50, 0), 107); 108static const DECLARE_TLV_DB_RANGE(max98373_limiter_thresh_tlv, 109 0, 15, TLV_DB_SCALE_ITEM(-1500, 100, 0), 110); 111 112static const DECLARE_TLV_DB_RANGE(max98373_bde_gain_tlv, 113 0, 60, TLV_DB_SCALE_ITEM(-1500, 25, 0), 114); 115 116static const char * const max98373_output_voltage_lvl_text[] = { 117 "5.43V", "6.09V", "6.83V", "7.67V", "8.60V", 118 "9.65V", "10.83V", "12.15V", "13.63V", "15.29V" 119}; 120 121static SOC_ENUM_SINGLE_DECL(max98373_out_volt_enum, 122 MAX98373_R203E_AMP_PATH_GAIN, 0, 123 max98373_output_voltage_lvl_text); 124 125static const char * const max98373_dht_attack_rate_text[] = { 126 "17.5us", "35us", "70us", "140us", 127 "280us", "560us", "1120us", "2240us" 128}; 129 130static SOC_ENUM_SINGLE_DECL(max98373_dht_attack_rate_enum, 131 MAX98373_R20D2_DHT_ATTACK_CFG, 0, 132 max98373_dht_attack_rate_text); 133 134static const char * const max98373_dht_release_rate_text[] = { 135 "45ms", "225ms", "450ms", "1150ms", 136 "2250ms", "3100ms", "4500ms", "6750ms" 137}; 138 139static SOC_ENUM_SINGLE_DECL(max98373_dht_release_rate_enum, 140 MAX98373_R20D3_DHT_RELEASE_CFG, 0, 141 max98373_dht_release_rate_text); 142 143static const char * const max98373_limiter_attack_rate_text[] = { 144 "10us", "20us", "40us", "80us", 145 "160us", "320us", "640us", "1.28ms", 146 "2.56ms", "5.12ms", "10.24ms", "20.48ms", 147 "40.96ms", "81.92ms", "16.384ms", "32.768ms" 148}; 149 150static SOC_ENUM_SINGLE_DECL(max98373_limiter_attack_rate_enum, 151 MAX98373_R20E1_LIMITER_ATK_REL_RATES, 4, 152 max98373_limiter_attack_rate_text); 153 154static const char * const max98373_limiter_release_rate_text[] = { 155 "40us", "80us", "160us", "320us", 156 "640us", "1.28ms", "2.56ms", "5.120ms", 157 "10.24ms", "20.48ms", "40.96ms", "81.92ms", 158 "163.84ms", "327.68ms", "655.36ms", "1310.72ms" 159}; 160 161static SOC_ENUM_SINGLE_DECL(max98373_limiter_release_rate_enum, 162 MAX98373_R20E1_LIMITER_ATK_REL_RATES, 0, 163 max98373_limiter_release_rate_text); 164 165static const char * const max98373_ADC_samplerate_text[] = { 166 "333kHz", "192kHz", "64kHz", "48kHz" 167}; 168 169static SOC_ENUM_SINGLE_DECL(max98373_adc_samplerate_enum, 170 MAX98373_R2051_MEAS_ADC_SAMPLING_RATE, 0, 171 max98373_ADC_samplerate_text); 172 173static int max98373_feedback_get(struct snd_kcontrol *kcontrol, 174 struct snd_ctl_elem_value *ucontrol) 175{ 176 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 177 struct soc_mixer_control *mc = 178 (struct soc_mixer_control *)kcontrol->private_value; 179 struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); 180 int i; 181 182 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 183 /* 184 * Register values will be cached before suspend. The cached value 185 * will be a valid value and userspace will happy with that. 186 */ 187 for (i = 0; i < max98373->cache_num; i++) { 188 if (mc->reg == max98373->cache[i].reg) { 189 ucontrol->value.integer.value[0] = max98373->cache[i].val; 190 return 0; 191 } 192 } 193 } 194 195 return snd_soc_get_volsw(kcontrol, ucontrol); 196} 197 198static const struct snd_kcontrol_new max98373_snd_controls[] = { 199SOC_SINGLE("Digital Vol Sel Switch", MAX98373_R203F_AMP_DSP_CFG, 200 MAX98373_AMP_VOL_SEL_SHIFT, 1, 0), 201SOC_SINGLE("Volume Location Switch", MAX98373_R203F_AMP_DSP_CFG, 202 MAX98373_AMP_VOL_SEL_SHIFT, 1, 0), 203SOC_SINGLE("Ramp Up Switch", MAX98373_R203F_AMP_DSP_CFG, 204 MAX98373_AMP_DSP_CFG_RMP_UP_SHIFT, 1, 0), 205SOC_SINGLE("Ramp Down Switch", MAX98373_R203F_AMP_DSP_CFG, 206 MAX98373_AMP_DSP_CFG_RMP_DN_SHIFT, 1, 0), 207/* Speaker Amplifier Overcurrent Automatic Restart Enable */ 208SOC_SINGLE("OVC Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 209 MAX98373_OVC_AUTORESTART_SHIFT, 1, 0), 210/* Thermal Shutdown Automatic Restart Enable */ 211SOC_SINGLE("THERM Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 212 MAX98373_THERM_AUTORESTART_SHIFT, 1, 0), 213/* Clock Monitor Automatic Restart Enable */ 214SOC_SINGLE("CMON Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 215 MAX98373_CMON_AUTORESTART_SHIFT, 1, 0), 216SOC_SINGLE("CLK Monitor Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 217 MAX98373_CLOCK_MON_SHIFT, 1, 0), 218SOC_SINGLE("Dither Switch", MAX98373_R203F_AMP_DSP_CFG, 219 MAX98373_AMP_DSP_CFG_DITH_SHIFT, 1, 0), 220SOC_SINGLE("DC Blocker Switch", MAX98373_R203F_AMP_DSP_CFG, 221 MAX98373_AMP_DSP_CFG_DCBLK_SHIFT, 1, 0), 222SOC_SINGLE_TLV("Digital Volume", MAX98373_R203D_AMP_DIG_VOL_CTRL, 223 0, 0x7F, 1, max98373_digital_tlv), 224SOC_SINGLE_TLV("Speaker Volume", MAX98373_R203E_AMP_PATH_GAIN, 225 MAX98373_SPK_DIGI_GAIN_SHIFT, 10, 0, max98373_spk_tlv), 226SOC_SINGLE_TLV("FS Max Volume", MAX98373_R203E_AMP_PATH_GAIN, 227 MAX98373_FS_GAIN_MAX_SHIFT, 9, 0, max98373_spkgain_max_tlv), 228SOC_ENUM("Output Voltage", max98373_out_volt_enum), 229/* Dynamic Headroom Tracking */ 230SOC_SINGLE("DHT Switch", MAX98373_R20D4_DHT_EN, 231 MAX98373_DHT_EN_SHIFT, 1, 0), 232SOC_SINGLE_TLV("DHT Min Volume", MAX98373_R20D1_DHT_CFG, 233 MAX98373_DHT_SPK_GAIN_MIN_SHIFT, 9, 0, max98373_dht_spkgain_min_tlv), 234SOC_SINGLE_TLV("DHT Rot Pnt Volume", MAX98373_R20D1_DHT_CFG, 235 MAX98373_DHT_ROT_PNT_SHIFT, 15, 1, max98373_dht_rotation_point_tlv), 236SOC_SINGLE_TLV("DHT Attack Step Volume", MAX98373_R20D2_DHT_ATTACK_CFG, 237 MAX98373_DHT_ATTACK_STEP_SHIFT, 4, 0, max98373_dht_step_size_tlv), 238SOC_SINGLE_TLV("DHT Release Step Volume", MAX98373_R20D3_DHT_RELEASE_CFG, 239 MAX98373_DHT_RELEASE_STEP_SHIFT, 4, 0, max98373_dht_step_size_tlv), 240SOC_ENUM("DHT Attack Rate", max98373_dht_attack_rate_enum), 241SOC_ENUM("DHT Release Rate", max98373_dht_release_rate_enum), 242/* ADC configuration */ 243SOC_SINGLE("ADC PVDD CH Switch", MAX98373_R2056_MEAS_ADC_PVDD_CH_EN, 0, 1, 0), 244SOC_SINGLE("ADC PVDD FLT Switch", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, 245 MAX98373_FLT_EN_SHIFT, 1, 0), 246SOC_SINGLE("ADC TEMP FLT Switch", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, 247 MAX98373_FLT_EN_SHIFT, 1, 0), 248SOC_SINGLE_EXT("ADC PVDD", MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0, 0xFF, 0, 249 max98373_feedback_get, NULL), 250SOC_SINGLE_EXT("ADC TEMP", MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0, 0xFF, 0, 251 max98373_feedback_get, NULL), 252SOC_SINGLE("ADC PVDD FLT Coeff", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, 253 0, 0x3, 0), 254SOC_SINGLE("ADC TEMP FLT Coeff", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, 255 0, 0x3, 0), 256SOC_ENUM("ADC SampleRate", max98373_adc_samplerate_enum), 257/* Brownout Detection Engine */ 258SOC_SINGLE("BDE Switch", MAX98373_R20B5_BDE_EN, MAX98373_BDE_EN_SHIFT, 1, 0), 259SOC_SINGLE("BDE LVL4 Mute Switch", MAX98373_R20B2_BDE_L4_CFG_2, 260 MAX98373_LVL4_MUTE_EN_SHIFT, 1, 0), 261SOC_SINGLE("BDE LVL4 Hold Switch", MAX98373_R20B2_BDE_L4_CFG_2, 262 MAX98373_LVL4_HOLD_EN_SHIFT, 1, 0), 263SOC_SINGLE("BDE LVL1 Thresh", MAX98373_R2097_BDE_L1_THRESH, 0, 0xFF, 0), 264SOC_SINGLE("BDE LVL2 Thresh", MAX98373_R2098_BDE_L2_THRESH, 0, 0xFF, 0), 265SOC_SINGLE("BDE LVL3 Thresh", MAX98373_R2099_BDE_L3_THRESH, 0, 0xFF, 0), 266SOC_SINGLE("BDE LVL4 Thresh", MAX98373_R209A_BDE_L4_THRESH, 0, 0xFF, 0), 267SOC_SINGLE_EXT("BDE Active Level", MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0, 8, 0, 268 max98373_feedback_get, NULL), 269SOC_SINGLE("BDE Clip Mode Switch", MAX98373_R2092_BDE_CLIPPER_MODE, 0, 1, 0), 270SOC_SINGLE("BDE Thresh Hysteresis", MAX98373_R209B_BDE_THRESH_HYST, 0, 0xFF, 0), 271SOC_SINGLE("BDE Hold Time", MAX98373_R2090_BDE_LVL_HOLD, 0, 0xFF, 0), 272SOC_SINGLE("BDE Attack Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 4, 0xF, 0), 273SOC_SINGLE("BDE Release Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 0, 0xF, 0), 274SOC_SINGLE_TLV("BDE LVL1 Clip Thresh Volume", MAX98373_R20A9_BDE_L1_CFG_2, 275 0, 0x3C, 1, max98373_bde_gain_tlv), 276SOC_SINGLE_TLV("BDE LVL2 Clip Thresh Volume", MAX98373_R20AC_BDE_L2_CFG_2, 277 0, 0x3C, 1, max98373_bde_gain_tlv), 278SOC_SINGLE_TLV("BDE LVL3 Clip Thresh Volume", MAX98373_R20AF_BDE_L3_CFG_2, 279 0, 0x3C, 1, max98373_bde_gain_tlv), 280SOC_SINGLE_TLV("BDE LVL4 Clip Thresh Volume", MAX98373_R20B2_BDE_L4_CFG_2, 281 0, 0x3C, 1, max98373_bde_gain_tlv), 282SOC_SINGLE_TLV("BDE LVL1 Clip Reduction Volume", MAX98373_R20AA_BDE_L1_CFG_3, 283 0, 0x3C, 1, max98373_bde_gain_tlv), 284SOC_SINGLE_TLV("BDE LVL2 Clip Reduction Volume", MAX98373_R20AD_BDE_L2_CFG_3, 285 0, 0x3C, 1, max98373_bde_gain_tlv), 286SOC_SINGLE_TLV("BDE LVL3 Clip Reduction Volume", MAX98373_R20B0_BDE_L3_CFG_3, 287 0, 0x3C, 1, max98373_bde_gain_tlv), 288SOC_SINGLE_TLV("BDE LVL4 Clip Reduction Volume", MAX98373_R20B3_BDE_L4_CFG_3, 289 0, 0x3C, 1, max98373_bde_gain_tlv), 290SOC_SINGLE_TLV("BDE LVL1 Limiter Thresh Volume", MAX98373_R20A8_BDE_L1_CFG_1, 291 0, 0xF, 1, max98373_limiter_thresh_tlv), 292SOC_SINGLE_TLV("BDE LVL2 Limiter Thresh Volume", MAX98373_R20AB_BDE_L2_CFG_1, 293 0, 0xF, 1, max98373_limiter_thresh_tlv), 294SOC_SINGLE_TLV("BDE LVL3 Limiter Thresh Volume", MAX98373_R20AE_BDE_L3_CFG_1, 295 0, 0xF, 1, max98373_limiter_thresh_tlv), 296SOC_SINGLE_TLV("BDE LVL4 Limiter Thresh Volume", MAX98373_R20B1_BDE_L4_CFG_1, 297 0, 0xF, 1, max98373_limiter_thresh_tlv), 298/* Limiter */ 299SOC_SINGLE("Limiter Switch", MAX98373_R20E2_LIMITER_EN, 300 MAX98373_LIMITER_EN_SHIFT, 1, 0), 301SOC_SINGLE("Limiter Src Switch", MAX98373_R20E0_LIMITER_THRESH_CFG, 302 MAX98373_LIMITER_THRESH_SRC_SHIFT, 1, 0), 303SOC_SINGLE_TLV("Limiter Thresh Volume", MAX98373_R20E0_LIMITER_THRESH_CFG, 304 MAX98373_LIMITER_THRESH_SHIFT, 15, 0, max98373_limiter_thresh_tlv), 305SOC_ENUM("Limiter Attack Rate", max98373_limiter_attack_rate_enum), 306SOC_ENUM("Limiter Release Rate", max98373_limiter_release_rate_enum), 307}; 308 309static const struct snd_soc_dapm_route max98373_audio_map[] = { 310 /* Plabyack */ 311 {"DAI Sel Mux", "Left", "Amp Enable"}, 312 {"DAI Sel Mux", "Right", "Amp Enable"}, 313 {"DAI Sel Mux", "LeftRight", "Amp Enable"}, 314 {"BE_OUT", NULL, "DAI Sel Mux"}, 315 /* Capture */ 316 { "VI Sense", "Switch", "VMON" }, 317 { "VI Sense", "Switch", "IMON" }, 318 { "SpkFB Sense", "Switch", "FBMON" }, 319 { "Voltage Sense", NULL, "VI Sense" }, 320 { "Current Sense", NULL, "VI Sense" }, 321 { "Speaker FB Sense", NULL, "SpkFB Sense" }, 322}; 323 324void max98373_reset(struct max98373_priv *max98373, struct device *dev) 325{ 326 int ret, reg, count; 327 328 /* Software Reset */ 329 ret = regmap_update_bits(max98373->regmap, 330 MAX98373_R2000_SW_RESET, 331 MAX98373_SOFT_RESET, 332 MAX98373_SOFT_RESET); 333 if (ret) 334 dev_err(dev, "Reset command failed. (ret:%d)\n", ret); 335 336 count = 0; 337 while (count < 3) { 338 usleep_range(10000, 11000); 339 /* Software Reset Verification */ 340 ret = regmap_read(max98373->regmap, 341 MAX98373_R21FF_REV_ID, ®); 342 if (!ret) { 343 dev_info(dev, "Reset completed (retry:%d)\n", count); 344 return; 345 } 346 count++; 347 } 348 dev_err(dev, "Reset failed. (ret:%d)\n", ret); 349} 350EXPORT_SYMBOL_GPL(max98373_reset); 351 352static int max98373_probe(struct snd_soc_component *component) 353{ 354 struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); 355 356 /* Software Reset */ 357 max98373_reset(max98373, component->dev); 358 359 /* IV default slot configuration */ 360 regmap_write(max98373->regmap, 361 MAX98373_R2020_PCM_TX_HIZ_EN_1, 362 0xFF); 363 regmap_write(max98373->regmap, 364 MAX98373_R2021_PCM_TX_HIZ_EN_2, 365 0xFF); 366 /* L/R mix configuration */ 367 regmap_write(max98373->regmap, 368 MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1, 369 0x80); 370 regmap_write(max98373->regmap, 371 MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2, 372 0x1); 373 /* Enable DC blocker */ 374 regmap_write(max98373->regmap, 375 MAX98373_R203F_AMP_DSP_CFG, 376 0x3); 377 /* Enable IMON VMON DC blocker */ 378 regmap_write(max98373->regmap, 379 MAX98373_R2046_IV_SENSE_ADC_DSP_CFG, 380 0x7); 381 /* voltage, current slot configuration */ 382 regmap_write(max98373->regmap, 383 MAX98373_R2022_PCM_TX_SRC_1, 384 (max98373->i_slot << MAX98373_PCM_TX_CH_SRC_A_I_SHIFT | 385 max98373->v_slot) & 0xFF); 386 if (max98373->v_slot < 8) 387 regmap_update_bits(max98373->regmap, 388 MAX98373_R2020_PCM_TX_HIZ_EN_1, 389 1 << max98373->v_slot, 0); 390 else 391 regmap_update_bits(max98373->regmap, 392 MAX98373_R2021_PCM_TX_HIZ_EN_2, 393 1 << (max98373->v_slot - 8), 0); 394 395 if (max98373->i_slot < 8) 396 regmap_update_bits(max98373->regmap, 397 MAX98373_R2020_PCM_TX_HIZ_EN_1, 398 1 << max98373->i_slot, 0); 399 else 400 regmap_update_bits(max98373->regmap, 401 MAX98373_R2021_PCM_TX_HIZ_EN_2, 402 1 << (max98373->i_slot - 8), 0); 403 404 /* enable auto restart function by default */ 405 regmap_write(max98373->regmap, 406 MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 407 0xF); 408 409 /* speaker feedback slot configuration */ 410 regmap_write(max98373->regmap, 411 MAX98373_R2023_PCM_TX_SRC_2, 412 max98373->spkfb_slot & 0xFF); 413 414 /* Set interleave mode */ 415 if (max98373->interleave_mode) 416 regmap_update_bits(max98373->regmap, 417 MAX98373_R2024_PCM_DATA_FMT_CFG, 418 MAX98373_PCM_TX_CH_INTERLEAVE_MASK, 419 MAX98373_PCM_TX_CH_INTERLEAVE_MASK); 420 421 /* Speaker enable */ 422 regmap_update_bits(max98373->regmap, 423 MAX98373_R2043_AMP_EN, 424 MAX98373_SPK_EN_MASK, 1); 425 426 return 0; 427} 428 429const struct snd_soc_component_driver soc_codec_dev_max98373 = { 430 .probe = max98373_probe, 431 .controls = max98373_snd_controls, 432 .num_controls = ARRAY_SIZE(max98373_snd_controls), 433 .dapm_widgets = max98373_dapm_widgets, 434 .num_dapm_widgets = ARRAY_SIZE(max98373_dapm_widgets), 435 .dapm_routes = max98373_audio_map, 436 .num_dapm_routes = ARRAY_SIZE(max98373_audio_map), 437 .use_pmdown_time = 1, 438 .endianness = 1, 439}; 440EXPORT_SYMBOL_GPL(soc_codec_dev_max98373); 441 442static int max98373_sdw_probe(struct snd_soc_component *component) 443{ 444 int ret; 445 446 ret = pm_runtime_resume(component->dev); 447 if (ret < 0 && ret != -EACCES) 448 return ret; 449 450 return 0; 451} 452 453const struct snd_soc_component_driver soc_codec_dev_max98373_sdw = { 454 .probe = max98373_sdw_probe, 455 .controls = max98373_snd_controls, 456 .num_controls = ARRAY_SIZE(max98373_snd_controls), 457 .dapm_widgets = max98373_dapm_widgets, 458 .num_dapm_widgets = ARRAY_SIZE(max98373_dapm_widgets), 459 .dapm_routes = max98373_audio_map, 460 .num_dapm_routes = ARRAY_SIZE(max98373_audio_map), 461 .use_pmdown_time = 1, 462 .endianness = 1, 463}; 464EXPORT_SYMBOL_GPL(soc_codec_dev_max98373_sdw); 465 466void max98373_slot_config(struct device *dev, 467 struct max98373_priv *max98373) 468{ 469 int value; 470 471 if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value)) 472 max98373->v_slot = value & 0xF; 473 else 474 max98373->v_slot = 0; 475 476 if (!device_property_read_u32(dev, "maxim,imon-slot-no", &value)) 477 max98373->i_slot = value & 0xF; 478 else 479 max98373->i_slot = 1; 480 481 /* This will assert RESET */ 482 max98373->reset = devm_gpiod_get_optional(dev, 483 "maxim,reset", 484 GPIOD_OUT_HIGH); 485 if (IS_ERR(max98373->reset)) { 486 dev_err(dev, "error %ld looking up RESET GPIO line\n", 487 PTR_ERR(max98373->reset)); 488 return; 489 } 490 491 /* Cycle reset */ 492 if (max98373->reset) { 493 gpiod_set_consumer_name(max98373->reset ,"MAX98373_RESET"); 494 gpiod_direction_output(max98373->reset, 1); 495 msleep(50); 496 gpiod_direction_output(max98373->reset, 0); 497 msleep(20); 498 } 499 500 if (!device_property_read_u32(dev, "maxim,spkfb-slot-no", &value)) 501 max98373->spkfb_slot = value & 0xF; 502 else 503 max98373->spkfb_slot = 2; 504} 505EXPORT_SYMBOL_GPL(max98373_slot_config); 506 507MODULE_DESCRIPTION("ALSA SoC MAX98373 driver"); 508MODULE_AUTHOR("Ryan Lee <ryans.lee@maximintegrated.com>"); 509MODULE_LICENSE("GPL"); 510