1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * es8328.c -- ES8328 ALSA SoC Audio driver 4 * 5 * Copyright 2014 Sutajio Ko-Usagi PTE LTD 6 * 7 * Author: Sean Cross <xobs@kosagi.com> 8 */ 9 10 #include <linux/clk.h> 11 #include <linux/delay.h> 12 #include <linux/of_device.h> 13 #include <linux/module.h> 14 #include <linux/pm.h> 15 #include <linux/regmap.h> 16 #include <linux/slab.h> 17 #include <linux/regulator/consumer.h> 18 #include <sound/core.h> 19 #include <sound/initval.h> 20 #include <sound/pcm.h> 21 #include <sound/pcm_params.h> 22 #include <sound/soc.h> 23 #include <sound/tlv.h> 24 #include "es8328.h" 25 26 static const unsigned int rates_12288[] = { 27 8000, 12000, 16000, 24000, 32000, 48000, 96000, 28 }; 29 30 static const int ratios_12288[] = { 31 10, 7, 6, 4, 3, 2, 0, 32 }; 33 34 static const struct snd_pcm_hw_constraint_list constraints_12288 = { 35 .count = ARRAY_SIZE(rates_12288), 36 .list = rates_12288, 37 }; 38 39 static const unsigned int rates_11289[] = { 40 8018, 11025, 22050, 44100, 88200, 41 }; 42 43 static const int ratios_11289[] = { 44 9, 7, 4, 2, 0, 45 }; 46 47 static const struct snd_pcm_hw_constraint_list constraints_11289 = { 48 .count = ARRAY_SIZE(rates_11289), 49 .list = rates_11289, 50 }; 51 52 /* regulator supplies for sgtl5000, VDDD is an optional external supply */ 53 enum sgtl5000_regulator_supplies { 54 DVDD, 55 AVDD, 56 PVDD, 57 HPVDD, 58 ES8328_SUPPLY_NUM 59 }; 60 61 /* vddd is optional supply */ 62 static const char * const supply_names[ES8328_SUPPLY_NUM] = { 63 "DVDD", 64 "AVDD", 65 "PVDD", 66 "HPVDD", 67 }; 68 69 #define ES8328_RATES (SNDRV_PCM_RATE_192000 | \ 70 SNDRV_PCM_RATE_96000 | \ 71 SNDRV_PCM_RATE_88200 | \ 72 SNDRV_PCM_RATE_8000_48000) 73 #define ES8328_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ 74 SNDRV_PCM_FMTBIT_S18_3LE | \ 75 SNDRV_PCM_FMTBIT_S20_3LE | \ 76 SNDRV_PCM_FMTBIT_S24_LE | \ 77 SNDRV_PCM_FMTBIT_S32_LE) 78 79 struct es8328_priv { 80 struct regmap *regmap; 81 struct clk *clk; 82 int playback_fs; 83 bool deemph; 84 int mclkdiv2; 85 const struct snd_pcm_hw_constraint_list *sysclk_constraints; 86 const int *mclk_ratios; 87 bool master; 88 struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM]; 89 }; 90 91 /* 92 * ES8328 Controls 93 */ 94 95 static const char * const adcpol_txt[] = {"Normal", "L Invert", "R Invert", 96 "L + R Invert"}; 97 static SOC_ENUM_SINGLE_DECL(adcpol, 98 ES8328_ADCCONTROL6, 6, adcpol_txt); 99 100 static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0); 101 static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0); 102 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 103 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0); 104 105 static const struct { 106 int rate; 107 unsigned int val; 108 } deemph_settings[] = { 109 { 0, ES8328_DACCONTROL6_DEEMPH_OFF }, 110 { 32000, ES8328_DACCONTROL6_DEEMPH_32k }, 111 { 44100, ES8328_DACCONTROL6_DEEMPH_44_1k }, 112 { 48000, ES8328_DACCONTROL6_DEEMPH_48k }, 113 }; 114 115 static int es8328_set_deemph(struct snd_soc_component *component) 116 { 117 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 118 int val, i, best; 119 120 /* 121 * If we're using deemphasis select the nearest available sample 122 * rate. 123 */ 124 if (es8328->deemph) { 125 best = 0; 126 for (i = 1; i < ARRAY_SIZE(deemph_settings); i++) { 127 if (abs(deemph_settings[i].rate - es8328->playback_fs) < 128 abs(deemph_settings[best].rate - es8328->playback_fs)) 129 best = i; 130 } 131 132 val = deemph_settings[best].val; 133 } else { 134 val = ES8328_DACCONTROL6_DEEMPH_OFF; 135 } 136 137 dev_dbg(component->dev, "Set deemphasis %d\n", val); 138 139 return snd_soc_component_update_bits(component, ES8328_DACCONTROL6, 140 ES8328_DACCONTROL6_DEEMPH_MASK, val); 141 } 142 143 static int es8328_get_deemph(struct snd_kcontrol *kcontrol, 144 struct snd_ctl_elem_value *ucontrol) 145 { 146 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 147 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 148 149 ucontrol->value.integer.value[0] = es8328->deemph; 150 return 0; 151 } 152 153 static int es8328_put_deemph(struct snd_kcontrol *kcontrol, 154 struct snd_ctl_elem_value *ucontrol) 155 { 156 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 157 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 158 unsigned int deemph = ucontrol->value.integer.value[0]; 159 int ret; 160 161 if (deemph > 1) 162 return -EINVAL; 163 164 ret = es8328_set_deemph(component); 165 if (ret < 0) 166 return ret; 167 168 es8328->deemph = deemph; 169 170 return 0; 171 } 172 173 174 175 static const struct snd_kcontrol_new es8328_snd_controls[] = { 176 SOC_DOUBLE_R_TLV("Capture Digital Volume", 177 ES8328_ADCCONTROL8, ES8328_ADCCONTROL9, 178 0, 0xc0, 1, dac_adc_tlv), 179 SOC_SINGLE("Capture ZC Switch", ES8328_ADCCONTROL7, 6, 1, 0), 180 181 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 182 es8328_get_deemph, es8328_put_deemph), 183 184 SOC_ENUM("Capture Polarity", adcpol), 185 186 SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", 187 ES8328_DACCONTROL17, 3, 7, 1, bypass_tlv), 188 SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", 189 ES8328_DACCONTROL19, 3, 7, 1, bypass_tlv), 190 SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", 191 ES8328_DACCONTROL18, 3, 7, 1, bypass_tlv), 192 SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", 193 ES8328_DACCONTROL20, 3, 7, 1, bypass_tlv), 194 195 SOC_DOUBLE_R_TLV("PCM Volume", 196 ES8328_LDACVOL, ES8328_RDACVOL, 197 0, ES8328_DACVOL_MAX, 1, dac_adc_tlv), 198 199 SOC_DOUBLE_R_TLV("Output 1 Playback Volume", 200 ES8328_LOUT1VOL, ES8328_ROUT1VOL, 201 0, ES8328_OUT1VOL_MAX, 0, play_tlv), 202 203 SOC_DOUBLE_R_TLV("Output 2 Playback Volume", 204 ES8328_LOUT2VOL, ES8328_ROUT2VOL, 205 0, ES8328_OUT2VOL_MAX, 0, play_tlv), 206 207 SOC_DOUBLE_TLV("Mic PGA Volume", ES8328_ADCCONTROL1, 208 4, 0, 8, 0, mic_tlv), 209 }; 210 211 /* 212 * DAPM Controls 213 */ 214 215 static const char * const es8328_line_texts[] = { 216 "Line 1", "Line 2", "PGA", "Differential"}; 217 218 static const struct soc_enum es8328_lline_enum = 219 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 3, 220 ARRAY_SIZE(es8328_line_texts), 221 es8328_line_texts); 222 static const struct snd_kcontrol_new es8328_left_line_controls = 223 SOC_DAPM_ENUM("Route", es8328_lline_enum); 224 225 static const struct soc_enum es8328_rline_enum = 226 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 0, 227 ARRAY_SIZE(es8328_line_texts), 228 es8328_line_texts); 229 static const struct snd_kcontrol_new es8328_right_line_controls = 230 SOC_DAPM_ENUM("Route", es8328_rline_enum); 231 232 /* Left Mixer */ 233 static const struct snd_kcontrol_new es8328_left_mixer_controls[] = { 234 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL17, 7, 1, 0), 235 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL17, 6, 1, 0), 236 SOC_DAPM_SINGLE("Right Playback Switch", ES8328_DACCONTROL18, 7, 1, 0), 237 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL18, 6, 1, 0), 238 }; 239 240 /* Right Mixer */ 241 static const struct snd_kcontrol_new es8328_right_mixer_controls[] = { 242 SOC_DAPM_SINGLE("Left Playback Switch", ES8328_DACCONTROL19, 7, 1, 0), 243 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL19, 6, 1, 0), 244 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL20, 7, 1, 0), 245 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL20, 6, 1, 0), 246 }; 247 248 static const char * const es8328_pga_sel[] = { 249 "Line 1", "Line 2", "Line 3", "Differential"}; 250 251 /* Left PGA Mux */ 252 static const struct soc_enum es8328_lpga_enum = 253 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 6, 254 ARRAY_SIZE(es8328_pga_sel), 255 es8328_pga_sel); 256 static const struct snd_kcontrol_new es8328_left_pga_controls = 257 SOC_DAPM_ENUM("Route", es8328_lpga_enum); 258 259 /* Right PGA Mux */ 260 static const struct soc_enum es8328_rpga_enum = 261 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 4, 262 ARRAY_SIZE(es8328_pga_sel), 263 es8328_pga_sel); 264 static const struct snd_kcontrol_new es8328_right_pga_controls = 265 SOC_DAPM_ENUM("Route", es8328_rpga_enum); 266 267 /* Differential Mux */ 268 static const char * const es8328_diff_sel[] = {"Line 1", "Line 2"}; 269 static SOC_ENUM_SINGLE_DECL(diffmux, 270 ES8328_ADCCONTROL3, 7, es8328_diff_sel); 271 static const struct snd_kcontrol_new es8328_diffmux_controls = 272 SOC_DAPM_ENUM("Route", diffmux); 273 274 /* Mono ADC Mux */ 275 static const char * const es8328_mono_mux[] = {"Stereo", "Mono (Left)", 276 "Mono (Right)", "Digital Mono"}; 277 static SOC_ENUM_SINGLE_DECL(monomux, 278 ES8328_ADCCONTROL3, 3, es8328_mono_mux); 279 static const struct snd_kcontrol_new es8328_monomux_controls = 280 SOC_DAPM_ENUM("Route", monomux); 281 282 static const struct snd_soc_dapm_widget es8328_dapm_widgets[] = { 283 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, 284 &es8328_diffmux_controls), 285 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, 286 &es8328_monomux_controls), 287 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, 288 &es8328_monomux_controls), 289 290 SND_SOC_DAPM_MUX("Left PGA Mux", ES8328_ADCPOWER, 291 ES8328_ADCPOWER_AINL_OFF, 1, 292 &es8328_left_pga_controls), 293 SND_SOC_DAPM_MUX("Right PGA Mux", ES8328_ADCPOWER, 294 ES8328_ADCPOWER_AINR_OFF, 1, 295 &es8328_right_pga_controls), 296 297 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, 298 &es8328_left_line_controls), 299 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, 300 &es8328_right_line_controls), 301 302 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ES8328_ADCPOWER, 303 ES8328_ADCPOWER_ADCR_OFF, 1), 304 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ES8328_ADCPOWER, 305 ES8328_ADCPOWER_ADCL_OFF, 1), 306 307 SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER, 308 ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0), 309 SND_SOC_DAPM_SUPPLY("Mic Bias Gen", ES8328_ADCPOWER, 310 ES8328_ADCPOWER_ADC_BIAS_GEN_OFF, 1, NULL, 0), 311 312 SND_SOC_DAPM_SUPPLY("DAC STM", ES8328_CHIPPOWER, 313 ES8328_CHIPPOWER_DACSTM_RESET, 1, NULL, 0), 314 SND_SOC_DAPM_SUPPLY("ADC STM", ES8328_CHIPPOWER, 315 ES8328_CHIPPOWER_ADCSTM_RESET, 1, NULL, 0), 316 317 SND_SOC_DAPM_SUPPLY("DAC DIG", ES8328_CHIPPOWER, 318 ES8328_CHIPPOWER_DACDIG_OFF, 1, NULL, 0), 319 SND_SOC_DAPM_SUPPLY("ADC DIG", ES8328_CHIPPOWER, 320 ES8328_CHIPPOWER_ADCDIG_OFF, 1, NULL, 0), 321 322 SND_SOC_DAPM_SUPPLY("DAC DLL", ES8328_CHIPPOWER, 323 ES8328_CHIPPOWER_DACDLL_OFF, 1, NULL, 0), 324 SND_SOC_DAPM_SUPPLY("ADC DLL", ES8328_CHIPPOWER, 325 ES8328_CHIPPOWER_ADCDLL_OFF, 1, NULL, 0), 326 327 SND_SOC_DAPM_SUPPLY("ADC Vref", ES8328_CHIPPOWER, 328 ES8328_CHIPPOWER_ADCVREF_OFF, 1, NULL, 0), 329 SND_SOC_DAPM_SUPPLY("DAC Vref", ES8328_CHIPPOWER, 330 ES8328_CHIPPOWER_DACVREF_OFF, 1, NULL, 0), 331 332 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", ES8328_DACPOWER, 333 ES8328_DACPOWER_RDAC_OFF, 1), 334 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", ES8328_DACPOWER, 335 ES8328_DACPOWER_LDAC_OFF, 1), 336 337 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, 338 &es8328_left_mixer_controls[0], 339 ARRAY_SIZE(es8328_left_mixer_controls)), 340 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, 341 &es8328_right_mixer_controls[0], 342 ARRAY_SIZE(es8328_right_mixer_controls)), 343 344 SND_SOC_DAPM_PGA("Right Out 2", ES8328_DACPOWER, 345 ES8328_DACPOWER_ROUT2_ON, 0, NULL, 0), 346 SND_SOC_DAPM_PGA("Left Out 2", ES8328_DACPOWER, 347 ES8328_DACPOWER_LOUT2_ON, 0, NULL, 0), 348 SND_SOC_DAPM_PGA("Right Out 1", ES8328_DACPOWER, 349 ES8328_DACPOWER_ROUT1_ON, 0, NULL, 0), 350 SND_SOC_DAPM_PGA("Left Out 1", ES8328_DACPOWER, 351 ES8328_DACPOWER_LOUT1_ON, 0, NULL, 0), 352 353 SND_SOC_DAPM_OUTPUT("LOUT1"), 354 SND_SOC_DAPM_OUTPUT("ROUT1"), 355 SND_SOC_DAPM_OUTPUT("LOUT2"), 356 SND_SOC_DAPM_OUTPUT("ROUT2"), 357 358 SND_SOC_DAPM_INPUT("LINPUT1"), 359 SND_SOC_DAPM_INPUT("LINPUT2"), 360 SND_SOC_DAPM_INPUT("RINPUT1"), 361 SND_SOC_DAPM_INPUT("RINPUT2"), 362 }; 363 364 static const struct snd_soc_dapm_route es8328_dapm_routes[] = { 365 366 { "Left Line Mux", "Line 1", "LINPUT1" }, 367 { "Left Line Mux", "Line 2", "LINPUT2" }, 368 { "Left Line Mux", "PGA", "Left PGA Mux" }, 369 { "Left Line Mux", "Differential", "Differential Mux" }, 370 371 { "Right Line Mux", "Line 1", "RINPUT1" }, 372 { "Right Line Mux", "Line 2", "RINPUT2" }, 373 { "Right Line Mux", "PGA", "Right PGA Mux" }, 374 { "Right Line Mux", "Differential", "Differential Mux" }, 375 376 { "Left PGA Mux", "Line 1", "LINPUT1" }, 377 { "Left PGA Mux", "Line 2", "LINPUT2" }, 378 { "Left PGA Mux", "Differential", "Differential Mux" }, 379 380 { "Right PGA Mux", "Line 1", "RINPUT1" }, 381 { "Right PGA Mux", "Line 2", "RINPUT2" }, 382 { "Right PGA Mux", "Differential", "Differential Mux" }, 383 384 { "Differential Mux", "Line 1", "LINPUT1" }, 385 { "Differential Mux", "Line 1", "RINPUT1" }, 386 { "Differential Mux", "Line 2", "LINPUT2" }, 387 { "Differential Mux", "Line 2", "RINPUT2" }, 388 389 { "Left ADC Mux", "Stereo", "Left PGA Mux" }, 390 { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, 391 { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, 392 393 { "Right ADC Mux", "Stereo", "Right PGA Mux" }, 394 { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, 395 { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, 396 397 { "Left ADC", NULL, "Left ADC Mux" }, 398 { "Right ADC", NULL, "Right ADC Mux" }, 399 400 { "ADC DIG", NULL, "ADC STM" }, 401 { "ADC DIG", NULL, "ADC Vref" }, 402 { "ADC DIG", NULL, "ADC DLL" }, 403 404 { "Left ADC", NULL, "ADC DIG" }, 405 { "Right ADC", NULL, "ADC DIG" }, 406 407 { "Mic Bias", NULL, "Mic Bias Gen" }, 408 409 { "Left Line Mux", "Line 1", "LINPUT1" }, 410 { "Left Line Mux", "Line 2", "LINPUT2" }, 411 { "Left Line Mux", "PGA", "Left PGA Mux" }, 412 { "Left Line Mux", "Differential", "Differential Mux" }, 413 414 { "Right Line Mux", "Line 1", "RINPUT1" }, 415 { "Right Line Mux", "Line 2", "RINPUT2" }, 416 { "Right Line Mux", "PGA", "Right PGA Mux" }, 417 { "Right Line Mux", "Differential", "Differential Mux" }, 418 419 { "Left Out 1", NULL, "Left DAC" }, 420 { "Right Out 1", NULL, "Right DAC" }, 421 { "Left Out 2", NULL, "Left DAC" }, 422 { "Right Out 2", NULL, "Right DAC" }, 423 424 { "Left Mixer", "Playback Switch", "Left DAC" }, 425 { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, 426 { "Left Mixer", "Right Playback Switch", "Right DAC" }, 427 { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, 428 429 { "Right Mixer", "Left Playback Switch", "Left DAC" }, 430 { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, 431 { "Right Mixer", "Playback Switch", "Right DAC" }, 432 { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, 433 434 { "DAC DIG", NULL, "DAC STM" }, 435 { "DAC DIG", NULL, "DAC Vref" }, 436 { "DAC DIG", NULL, "DAC DLL" }, 437 438 { "Left DAC", NULL, "DAC DIG" }, 439 { "Right DAC", NULL, "DAC DIG" }, 440 441 { "Left Out 1", NULL, "Left Mixer" }, 442 { "LOUT1", NULL, "Left Out 1" }, 443 { "Right Out 1", NULL, "Right Mixer" }, 444 { "ROUT1", NULL, "Right Out 1" }, 445 446 { "Left Out 2", NULL, "Left Mixer" }, 447 { "LOUT2", NULL, "Left Out 2" }, 448 { "Right Out 2", NULL, "Right Mixer" }, 449 { "ROUT2", NULL, "Right Out 2" }, 450 }; 451 452 static int es8328_mute(struct snd_soc_dai *dai, int mute) 453 { 454 return snd_soc_component_update_bits(dai->component, ES8328_DACCONTROL3, 455 ES8328_DACCONTROL3_DACMUTE, 456 mute ? ES8328_DACCONTROL3_DACMUTE : 0); 457 } 458 459 static int es8328_startup(struct snd_pcm_substream *substream, 460 struct snd_soc_dai *dai) 461 { 462 struct snd_soc_component *component = dai->component; 463 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 464 465 if (es8328->master && es8328->sysclk_constraints) 466 snd_pcm_hw_constraint_list(substream->runtime, 0, 467 SNDRV_PCM_HW_PARAM_RATE, 468 es8328->sysclk_constraints); 469 470 return 0; 471 } 472 473 static int es8328_hw_params(struct snd_pcm_substream *substream, 474 struct snd_pcm_hw_params *params, 475 struct snd_soc_dai *dai) 476 { 477 struct snd_soc_component *component = dai->component; 478 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 479 int i; 480 int reg; 481 int wl; 482 int ratio; 483 484 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 485 reg = ES8328_DACCONTROL2; 486 else 487 reg = ES8328_ADCCONTROL5; 488 489 if (es8328->master) { 490 if (!es8328->sysclk_constraints) { 491 dev_err(component->dev, "No MCLK configured\n"); 492 return -EINVAL; 493 } 494 495 for (i = 0; i < es8328->sysclk_constraints->count; i++) 496 if (es8328->sysclk_constraints->list[i] == 497 params_rate(params)) 498 break; 499 500 if (i == es8328->sysclk_constraints->count) { 501 dev_err(component->dev, 502 "LRCLK %d unsupported with current clock\n", 503 params_rate(params)); 504 return -EINVAL; 505 } 506 ratio = es8328->mclk_ratios[i]; 507 } else { 508 ratio = 0; 509 es8328->mclkdiv2 = 0; 510 } 511 512 snd_soc_component_update_bits(component, ES8328_MASTERMODE, 513 ES8328_MASTERMODE_MCLKDIV2, 514 es8328->mclkdiv2 ? ES8328_MASTERMODE_MCLKDIV2 : 0); 515 516 switch (params_width(params)) { 517 case 16: 518 wl = 3; 519 break; 520 case 18: 521 wl = 2; 522 break; 523 case 20: 524 wl = 1; 525 break; 526 case 24: 527 wl = 0; 528 break; 529 case 32: 530 wl = 4; 531 break; 532 default: 533 return -EINVAL; 534 } 535 536 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 537 snd_soc_component_update_bits(component, ES8328_DACCONTROL1, 538 ES8328_DACCONTROL1_DACWL_MASK, 539 wl << ES8328_DACCONTROL1_DACWL_SHIFT); 540 541 es8328->playback_fs = params_rate(params); 542 es8328_set_deemph(component); 543 } else 544 snd_soc_component_update_bits(component, ES8328_ADCCONTROL4, 545 ES8328_ADCCONTROL4_ADCWL_MASK, 546 wl << ES8328_ADCCONTROL4_ADCWL_SHIFT); 547 548 return snd_soc_component_update_bits(component, reg, ES8328_RATEMASK, ratio); 549 } 550 551 static int es8328_set_sysclk(struct snd_soc_dai *codec_dai, 552 int clk_id, unsigned int freq, int dir) 553 { 554 struct snd_soc_component *component = codec_dai->component; 555 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 556 int mclkdiv2 = 0; 557 558 switch (freq) { 559 case 0: 560 es8328->sysclk_constraints = NULL; 561 es8328->mclk_ratios = NULL; 562 break; 563 case 22579200: 564 mclkdiv2 = 1; 565 /* fall through */ 566 case 11289600: 567 es8328->sysclk_constraints = &constraints_11289; 568 es8328->mclk_ratios = ratios_11289; 569 break; 570 case 24576000: 571 mclkdiv2 = 1; 572 /* fall through */ 573 case 12288000: 574 es8328->sysclk_constraints = &constraints_12288; 575 es8328->mclk_ratios = ratios_12288; 576 break; 577 default: 578 return -EINVAL; 579 } 580 581 es8328->mclkdiv2 = mclkdiv2; 582 return 0; 583 } 584 585 static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai, 586 unsigned int fmt) 587 { 588 struct snd_soc_component *component = codec_dai->component; 589 struct es8328_priv *es8328 = snd_soc_component_get_drvdata(component); 590 u8 dac_mode = 0; 591 u8 adc_mode = 0; 592 593 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 594 case SND_SOC_DAIFMT_CBM_CFM: 595 /* Master serial port mode, with BCLK generated automatically */ 596 snd_soc_component_update_bits(component, ES8328_MASTERMODE, 597 ES8328_MASTERMODE_MSC, 598 ES8328_MASTERMODE_MSC); 599 es8328->master = true; 600 break; 601 case SND_SOC_DAIFMT_CBS_CFS: 602 /* Slave serial port mode */ 603 snd_soc_component_update_bits(component, ES8328_MASTERMODE, 604 ES8328_MASTERMODE_MSC, 0); 605 es8328->master = false; 606 break; 607 default: 608 return -EINVAL; 609 } 610 611 /* interface format */ 612 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 613 case SND_SOC_DAIFMT_I2S: 614 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_I2S; 615 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_I2S; 616 break; 617 case SND_SOC_DAIFMT_RIGHT_J: 618 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_RJUST; 619 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_RJUST; 620 break; 621 case SND_SOC_DAIFMT_LEFT_J: 622 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_LJUST; 623 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_LJUST; 624 break; 625 default: 626 return -EINVAL; 627 } 628 629 /* clock inversion */ 630 if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) 631 return -EINVAL; 632 633 snd_soc_component_update_bits(component, ES8328_DACCONTROL1, 634 ES8328_DACCONTROL1_DACFORMAT_MASK, dac_mode); 635 snd_soc_component_update_bits(component, ES8328_ADCCONTROL4, 636 ES8328_ADCCONTROL4_ADCFORMAT_MASK, adc_mode); 637 638 return 0; 639 } 640 641 static int es8328_set_bias_level(struct snd_soc_component *component, 642 enum snd_soc_bias_level level) 643 { 644 switch (level) { 645 case SND_SOC_BIAS_ON: 646 break; 647 648 case SND_SOC_BIAS_PREPARE: 649 /* VREF, VMID=2x50k, digital enabled */ 650 snd_soc_component_write(component, ES8328_CHIPPOWER, 0); 651 snd_soc_component_update_bits(component, ES8328_CONTROL1, 652 ES8328_CONTROL1_VMIDSEL_MASK | 653 ES8328_CONTROL1_ENREF, 654 ES8328_CONTROL1_VMIDSEL_50k | 655 ES8328_CONTROL1_ENREF); 656 break; 657 658 case SND_SOC_BIAS_STANDBY: 659 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 660 snd_soc_component_update_bits(component, ES8328_CONTROL1, 661 ES8328_CONTROL1_VMIDSEL_MASK | 662 ES8328_CONTROL1_ENREF, 663 ES8328_CONTROL1_VMIDSEL_5k | 664 ES8328_CONTROL1_ENREF); 665 666 /* Charge caps */ 667 msleep(100); 668 } 669 670 snd_soc_component_write(component, ES8328_CONTROL2, 671 ES8328_CONTROL2_OVERCURRENT_ON | 672 ES8328_CONTROL2_THERMAL_SHUTDOWN_ON); 673 674 /* VREF, VMID=2*500k, digital stopped */ 675 snd_soc_component_update_bits(component, ES8328_CONTROL1, 676 ES8328_CONTROL1_VMIDSEL_MASK | 677 ES8328_CONTROL1_ENREF, 678 ES8328_CONTROL1_VMIDSEL_500k | 679 ES8328_CONTROL1_ENREF); 680 break; 681 682 case SND_SOC_BIAS_OFF: 683 snd_soc_component_update_bits(component, ES8328_CONTROL1, 684 ES8328_CONTROL1_VMIDSEL_MASK | 685 ES8328_CONTROL1_ENREF, 686 0); 687 break; 688 } 689 return 0; 690 } 691 692 static const struct snd_soc_dai_ops es8328_dai_ops = { 693 .startup = es8328_startup, 694 .hw_params = es8328_hw_params, 695 .digital_mute = es8328_mute, 696 .set_sysclk = es8328_set_sysclk, 697 .set_fmt = es8328_set_dai_fmt, 698 }; 699 700 static struct snd_soc_dai_driver es8328_dai = { 701 .name = "es8328-hifi-analog", 702 .playback = { 703 .stream_name = "Playback", 704 .channels_min = 2, 705 .channels_max = 2, 706 .rates = ES8328_RATES, 707 .formats = ES8328_FORMATS, 708 }, 709 .capture = { 710 .stream_name = "Capture", 711 .channels_min = 2, 712 .channels_max = 2, 713 .rates = ES8328_RATES, 714 .formats = ES8328_FORMATS, 715 }, 716 .ops = &es8328_dai_ops, 717 .symmetric_rates = 1, 718 }; 719 720 static int es8328_suspend(struct snd_soc_component *component) 721 { 722 struct es8328_priv *es8328; 723 int ret; 724 725 es8328 = snd_soc_component_get_drvdata(component); 726 727 clk_disable_unprepare(es8328->clk); 728 729 ret = regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 730 es8328->supplies); 731 if (ret) { 732 dev_err(component->dev, "unable to disable regulators\n"); 733 return ret; 734 } 735 return 0; 736 } 737 738 static int es8328_resume(struct snd_soc_component *component) 739 { 740 struct regmap *regmap = dev_get_regmap(component->dev, NULL); 741 struct es8328_priv *es8328; 742 int ret; 743 744 es8328 = snd_soc_component_get_drvdata(component); 745 746 ret = clk_prepare_enable(es8328->clk); 747 if (ret) { 748 dev_err(component->dev, "unable to enable clock\n"); 749 return ret; 750 } 751 752 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 753 es8328->supplies); 754 if (ret) { 755 dev_err(component->dev, "unable to enable regulators\n"); 756 return ret; 757 } 758 759 regcache_mark_dirty(regmap); 760 ret = regcache_sync(regmap); 761 if (ret) { 762 dev_err(component->dev, "unable to sync regcache\n"); 763 return ret; 764 } 765 766 return 0; 767 } 768 769 static int es8328_component_probe(struct snd_soc_component *component) 770 { 771 struct es8328_priv *es8328; 772 int ret; 773 774 es8328 = snd_soc_component_get_drvdata(component); 775 776 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 777 es8328->supplies); 778 if (ret) { 779 dev_err(component->dev, "unable to enable regulators\n"); 780 return ret; 781 } 782 783 /* Setup clocks */ 784 es8328->clk = devm_clk_get(component->dev, NULL); 785 if (IS_ERR(es8328->clk)) { 786 dev_err(component->dev, "codec clock missing or invalid\n"); 787 ret = PTR_ERR(es8328->clk); 788 goto clk_fail; 789 } 790 791 ret = clk_prepare_enable(es8328->clk); 792 if (ret) { 793 dev_err(component->dev, "unable to prepare codec clk\n"); 794 goto clk_fail; 795 } 796 797 return 0; 798 799 clk_fail: 800 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 801 es8328->supplies); 802 return ret; 803 } 804 805 static void es8328_remove(struct snd_soc_component *component) 806 { 807 struct es8328_priv *es8328; 808 809 es8328 = snd_soc_component_get_drvdata(component); 810 811 if (es8328->clk) 812 clk_disable_unprepare(es8328->clk); 813 814 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 815 es8328->supplies); 816 } 817 818 const struct regmap_config es8328_regmap_config = { 819 .reg_bits = 8, 820 .val_bits = 8, 821 .max_register = ES8328_REG_MAX, 822 .cache_type = REGCACHE_RBTREE, 823 .use_single_read = true, 824 .use_single_write = true, 825 }; 826 EXPORT_SYMBOL_GPL(es8328_regmap_config); 827 828 static const struct snd_soc_component_driver es8328_component_driver = { 829 .probe = es8328_component_probe, 830 .remove = es8328_remove, 831 .suspend = es8328_suspend, 832 .resume = es8328_resume, 833 .set_bias_level = es8328_set_bias_level, 834 .controls = es8328_snd_controls, 835 .num_controls = ARRAY_SIZE(es8328_snd_controls), 836 .dapm_widgets = es8328_dapm_widgets, 837 .num_dapm_widgets = ARRAY_SIZE(es8328_dapm_widgets), 838 .dapm_routes = es8328_dapm_routes, 839 .num_dapm_routes = ARRAY_SIZE(es8328_dapm_routes), 840 .suspend_bias_off = 1, 841 .idle_bias_on = 1, 842 .use_pmdown_time = 1, 843 .endianness = 1, 844 .non_legacy_dai_naming = 1, 845 }; 846 847 int es8328_probe(struct device *dev, struct regmap *regmap) 848 { 849 struct es8328_priv *es8328; 850 int ret; 851 int i; 852 853 if (IS_ERR(regmap)) 854 return PTR_ERR(regmap); 855 856 es8328 = devm_kzalloc(dev, sizeof(*es8328), GFP_KERNEL); 857 if (es8328 == NULL) 858 return -ENOMEM; 859 860 es8328->regmap = regmap; 861 862 for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++) 863 es8328->supplies[i].supply = supply_names[i]; 864 865 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(es8328->supplies), 866 es8328->supplies); 867 if (ret) { 868 dev_err(dev, "unable to get regulators\n"); 869 return ret; 870 } 871 872 dev_set_drvdata(dev, es8328); 873 874 return devm_snd_soc_register_component(dev, 875 &es8328_component_driver, &es8328_dai, 1); 876 } 877 EXPORT_SYMBOL_GPL(es8328_probe); 878 879 MODULE_DESCRIPTION("ASoC ES8328 driver"); 880 MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>"); 881 MODULE_LICENSE("GPL"); 882