1 /* 2 * es8328.c -- ES8328 ALSA SoC Audio driver 3 * 4 * Copyright 2014 Sutajio Ko-Usagi PTE LTD 5 * 6 * Author: Sean Cross <xobs@kosagi.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/clk.h> 14 #include <linux/delay.h> 15 #include <linux/of_device.h> 16 #include <linux/module.h> 17 #include <linux/pm.h> 18 #include <linux/regmap.h> 19 #include <linux/slab.h> 20 #include <linux/regulator/consumer.h> 21 #include <sound/core.h> 22 #include <sound/initval.h> 23 #include <sound/pcm.h> 24 #include <sound/pcm_params.h> 25 #include <sound/soc.h> 26 #include <sound/tlv.h> 27 #include "es8328.h" 28 29 #define ES8328_SYSCLK_RATE_1X 11289600 30 #define ES8328_SYSCLK_RATE_2X 22579200 31 32 /* Run the codec at 22.5792 or 11.2896 MHz to support these rates */ 33 static struct { 34 int rate; 35 u8 ratio; 36 } mclk_ratios[] = { 37 { 8000, 9 }, 38 {11025, 7 }, 39 {22050, 4 }, 40 {44100, 2 }, 41 }; 42 43 /* regulator supplies for sgtl5000, VDDD is an optional external supply */ 44 enum sgtl5000_regulator_supplies { 45 DVDD, 46 AVDD, 47 PVDD, 48 HPVDD, 49 ES8328_SUPPLY_NUM 50 }; 51 52 /* vddd is optional supply */ 53 static const char * const supply_names[ES8328_SUPPLY_NUM] = { 54 "DVDD", 55 "AVDD", 56 "PVDD", 57 "HPVDD", 58 }; 59 60 #define ES8328_RATES (SNDRV_PCM_RATE_44100 | \ 61 SNDRV_PCM_RATE_22050 | \ 62 SNDRV_PCM_RATE_11025) 63 #define ES8328_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) 64 65 struct es8328_priv { 66 struct regmap *regmap; 67 struct clk *clk; 68 int playback_fs; 69 bool deemph; 70 struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM]; 71 }; 72 73 /* 74 * ES8328 Controls 75 */ 76 77 static const char * const adcpol_txt[] = {"Normal", "L Invert", "R Invert", 78 "L + R Invert"}; 79 static SOC_ENUM_SINGLE_DECL(adcpol, 80 ES8328_ADCCONTROL6, 6, adcpol_txt); 81 82 static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0); 83 static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0); 84 static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0); 85 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 86 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0); 87 88 static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; 89 90 static int es8328_set_deemph(struct snd_soc_codec *codec) 91 { 92 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 93 int val, i, best; 94 95 /* 96 * If we're using deemphasis select the nearest available sample 97 * rate. 98 */ 99 if (es8328->deemph) { 100 best = 1; 101 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { 102 if (abs(deemph_settings[i] - es8328->playback_fs) < 103 abs(deemph_settings[best] - es8328->playback_fs)) 104 best = i; 105 } 106 107 val = best << 1; 108 } else { 109 val = 0; 110 } 111 112 dev_dbg(codec->dev, "Set deemphasis %d\n", val); 113 114 return snd_soc_update_bits(codec, ES8328_DACCONTROL6, 0x6, val); 115 } 116 117 static int es8328_get_deemph(struct snd_kcontrol *kcontrol, 118 struct snd_ctl_elem_value *ucontrol) 119 { 120 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 121 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 122 123 ucontrol->value.integer.value[0] = es8328->deemph; 124 return 0; 125 } 126 127 static int es8328_put_deemph(struct snd_kcontrol *kcontrol, 128 struct snd_ctl_elem_value *ucontrol) 129 { 130 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 131 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 132 int deemph = ucontrol->value.integer.value[0]; 133 int ret; 134 135 if (deemph > 1) 136 return -EINVAL; 137 138 ret = es8328_set_deemph(codec); 139 if (ret < 0) 140 return ret; 141 142 es8328->deemph = deemph; 143 144 return 0; 145 } 146 147 148 149 static const struct snd_kcontrol_new es8328_snd_controls[] = { 150 SOC_DOUBLE_R_TLV("Capture Digital Volume", 151 ES8328_ADCCONTROL8, ES8328_ADCCONTROL9, 152 0, 0xc0, 1, dac_adc_tlv), 153 SOC_SINGLE("Capture ZC Switch", ES8328_ADCCONTROL7, 6, 1, 0), 154 155 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 156 es8328_get_deemph, es8328_put_deemph), 157 158 SOC_ENUM("Capture Polarity", adcpol), 159 160 SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", 161 ES8328_DACCONTROL17, 3, 7, 1, bypass_tlv), 162 SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", 163 ES8328_DACCONTROL19, 3, 7, 1, bypass_tlv), 164 SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", 165 ES8328_DACCONTROL18, 3, 7, 1, bypass_tlv), 166 SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", 167 ES8328_DACCONTROL20, 3, 7, 1, bypass_tlv), 168 169 SOC_DOUBLE_R_TLV("PCM Volume", 170 ES8328_LDACVOL, ES8328_RDACVOL, 171 0, ES8328_DACVOL_MAX, 1, dac_adc_tlv), 172 173 SOC_DOUBLE_R_TLV("Output 1 Playback Volume", 174 ES8328_LOUT1VOL, ES8328_ROUT1VOL, 175 0, ES8328_OUT1VOL_MAX, 0, play_tlv), 176 177 SOC_DOUBLE_R_TLV("Output 2 Playback Volume", 178 ES8328_LOUT2VOL, ES8328_ROUT2VOL, 179 0, ES8328_OUT2VOL_MAX, 0, play_tlv), 180 181 SOC_DOUBLE_TLV("Mic PGA Volume", ES8328_ADCCONTROL1, 182 4, 0, 8, 0, mic_tlv), 183 }; 184 185 /* 186 * DAPM Controls 187 */ 188 189 static const char * const es8328_line_texts[] = { 190 "Line 1", "Line 2", "PGA", "Differential"}; 191 192 static const struct soc_enum es8328_lline_enum = 193 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 3, 194 ARRAY_SIZE(es8328_line_texts), 195 es8328_line_texts); 196 static const struct snd_kcontrol_new es8328_left_line_controls = 197 SOC_DAPM_ENUM("Route", es8328_lline_enum); 198 199 static const struct soc_enum es8328_rline_enum = 200 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 0, 201 ARRAY_SIZE(es8328_line_texts), 202 es8328_line_texts); 203 static const struct snd_kcontrol_new es8328_right_line_controls = 204 SOC_DAPM_ENUM("Route", es8328_lline_enum); 205 206 /* Left Mixer */ 207 static const struct snd_kcontrol_new es8328_left_mixer_controls[] = { 208 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL17, 8, 1, 0), 209 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL17, 7, 1, 0), 210 SOC_DAPM_SINGLE("Right Playback Switch", ES8328_DACCONTROL18, 8, 1, 0), 211 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL18, 7, 1, 0), 212 }; 213 214 /* Right Mixer */ 215 static const struct snd_kcontrol_new es8328_right_mixer_controls[] = { 216 SOC_DAPM_SINGLE("Left Playback Switch", ES8328_DACCONTROL19, 8, 1, 0), 217 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL19, 7, 1, 0), 218 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL20, 8, 1, 0), 219 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL20, 7, 1, 0), 220 }; 221 222 static const char * const es8328_pga_sel[] = { 223 "Line 1", "Line 2", "Line 3", "Differential"}; 224 225 /* Left PGA Mux */ 226 static const struct soc_enum es8328_lpga_enum = 227 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 6, 228 ARRAY_SIZE(es8328_pga_sel), 229 es8328_pga_sel); 230 static const struct snd_kcontrol_new es8328_left_pga_controls = 231 SOC_DAPM_ENUM("Route", es8328_lpga_enum); 232 233 /* Right PGA Mux */ 234 static const struct soc_enum es8328_rpga_enum = 235 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 4, 236 ARRAY_SIZE(es8328_pga_sel), 237 es8328_pga_sel); 238 static const struct snd_kcontrol_new es8328_right_pga_controls = 239 SOC_DAPM_ENUM("Route", es8328_rpga_enum); 240 241 /* Differential Mux */ 242 static const char * const es8328_diff_sel[] = {"Line 1", "Line 2"}; 243 static SOC_ENUM_SINGLE_DECL(diffmux, 244 ES8328_ADCCONTROL3, 7, es8328_diff_sel); 245 static const struct snd_kcontrol_new es8328_diffmux_controls = 246 SOC_DAPM_ENUM("Route", diffmux); 247 248 /* Mono ADC Mux */ 249 static const char * const es8328_mono_mux[] = {"Stereo", "Mono (Left)", 250 "Mono (Right)", "Digital Mono"}; 251 static SOC_ENUM_SINGLE_DECL(monomux, 252 ES8328_ADCCONTROL3, 3, es8328_mono_mux); 253 static const struct snd_kcontrol_new es8328_monomux_controls = 254 SOC_DAPM_ENUM("Route", monomux); 255 256 static const struct snd_soc_dapm_widget es8328_dapm_widgets[] = { 257 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, 258 &es8328_diffmux_controls), 259 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, 260 &es8328_monomux_controls), 261 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, 262 &es8328_monomux_controls), 263 264 SND_SOC_DAPM_MUX("Left PGA Mux", ES8328_ADCPOWER, 265 ES8328_ADCPOWER_AINL_OFF, 1, 266 &es8328_left_pga_controls), 267 SND_SOC_DAPM_MUX("Right PGA Mux", ES8328_ADCPOWER, 268 ES8328_ADCPOWER_AINR_OFF, 1, 269 &es8328_right_pga_controls), 270 271 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, 272 &es8328_left_line_controls), 273 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, 274 &es8328_right_line_controls), 275 276 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ES8328_ADCPOWER, 277 ES8328_ADCPOWER_ADCR_OFF, 1), 278 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ES8328_ADCPOWER, 279 ES8328_ADCPOWER_ADCL_OFF, 1), 280 281 SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER, 282 ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0), 283 SND_SOC_DAPM_SUPPLY("Mic Bias Gen", ES8328_ADCPOWER, 284 ES8328_ADCPOWER_ADC_BIAS_GEN_OFF, 1, NULL, 0), 285 286 SND_SOC_DAPM_SUPPLY("DAC STM", ES8328_CHIPPOWER, 287 ES8328_CHIPPOWER_DACSTM_RESET, 1, NULL, 0), 288 SND_SOC_DAPM_SUPPLY("ADC STM", ES8328_CHIPPOWER, 289 ES8328_CHIPPOWER_ADCSTM_RESET, 1, NULL, 0), 290 291 SND_SOC_DAPM_SUPPLY("DAC DIG", ES8328_CHIPPOWER, 292 ES8328_CHIPPOWER_DACDIG_OFF, 1, NULL, 0), 293 SND_SOC_DAPM_SUPPLY("ADC DIG", ES8328_CHIPPOWER, 294 ES8328_CHIPPOWER_ADCDIG_OFF, 1, NULL, 0), 295 296 SND_SOC_DAPM_SUPPLY("DAC DLL", ES8328_CHIPPOWER, 297 ES8328_CHIPPOWER_DACDLL_OFF, 1, NULL, 0), 298 SND_SOC_DAPM_SUPPLY("ADC DLL", ES8328_CHIPPOWER, 299 ES8328_CHIPPOWER_ADCDLL_OFF, 1, NULL, 0), 300 301 SND_SOC_DAPM_SUPPLY("ADC Vref", ES8328_CHIPPOWER, 302 ES8328_CHIPPOWER_ADCVREF_OFF, 1, NULL, 0), 303 SND_SOC_DAPM_SUPPLY("DAC Vref", ES8328_CHIPPOWER, 304 ES8328_CHIPPOWER_DACVREF_OFF, 1, NULL, 0), 305 306 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", ES8328_DACPOWER, 307 ES8328_DACPOWER_RDAC_OFF, 1), 308 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", ES8328_DACPOWER, 309 ES8328_DACPOWER_LDAC_OFF, 1), 310 311 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, 312 &es8328_left_mixer_controls[0], 313 ARRAY_SIZE(es8328_left_mixer_controls)), 314 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, 315 &es8328_right_mixer_controls[0], 316 ARRAY_SIZE(es8328_right_mixer_controls)), 317 318 SND_SOC_DAPM_PGA("Right Out 2", ES8328_DACPOWER, 319 ES8328_DACPOWER_ROUT2_ON, 0, NULL, 0), 320 SND_SOC_DAPM_PGA("Left Out 2", ES8328_DACPOWER, 321 ES8328_DACPOWER_LOUT2_ON, 0, NULL, 0), 322 SND_SOC_DAPM_PGA("Right Out 1", ES8328_DACPOWER, 323 ES8328_DACPOWER_ROUT1_ON, 0, NULL, 0), 324 SND_SOC_DAPM_PGA("Left Out 1", ES8328_DACPOWER, 325 ES8328_DACPOWER_LOUT1_ON, 0, NULL, 0), 326 327 SND_SOC_DAPM_OUTPUT("LOUT1"), 328 SND_SOC_DAPM_OUTPUT("ROUT1"), 329 SND_SOC_DAPM_OUTPUT("LOUT2"), 330 SND_SOC_DAPM_OUTPUT("ROUT2"), 331 332 SND_SOC_DAPM_INPUT("LINPUT1"), 333 SND_SOC_DAPM_INPUT("LINPUT2"), 334 SND_SOC_DAPM_INPUT("RINPUT1"), 335 SND_SOC_DAPM_INPUT("RINPUT2"), 336 }; 337 338 static const struct snd_soc_dapm_route es8328_dapm_routes[] = { 339 340 { "Left Line Mux", "Line 1", "LINPUT1" }, 341 { "Left Line Mux", "Line 2", "LINPUT2" }, 342 { "Left Line Mux", "PGA", "Left PGA Mux" }, 343 { "Left Line Mux", "Differential", "Differential Mux" }, 344 345 { "Right Line Mux", "Line 1", "RINPUT1" }, 346 { "Right Line Mux", "Line 2", "RINPUT2" }, 347 { "Right Line Mux", "PGA", "Right PGA Mux" }, 348 { "Right Line Mux", "Differential", "Differential Mux" }, 349 350 { "Left PGA Mux", "Line 1", "LINPUT1" }, 351 { "Left PGA Mux", "Line 2", "LINPUT2" }, 352 { "Left PGA Mux", "Differential", "Differential Mux" }, 353 354 { "Right PGA Mux", "Line 1", "RINPUT1" }, 355 { "Right PGA Mux", "Line 2", "RINPUT2" }, 356 { "Right PGA Mux", "Differential", "Differential Mux" }, 357 358 { "Differential Mux", "Line 1", "LINPUT1" }, 359 { "Differential Mux", "Line 1", "RINPUT1" }, 360 { "Differential Mux", "Line 2", "LINPUT2" }, 361 { "Differential Mux", "Line 2", "RINPUT2" }, 362 363 { "Left ADC Mux", "Stereo", "Left PGA Mux" }, 364 { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, 365 { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, 366 367 { "Right ADC Mux", "Stereo", "Right PGA Mux" }, 368 { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, 369 { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, 370 371 { "Left ADC", NULL, "Left ADC Mux" }, 372 { "Right ADC", NULL, "Right ADC Mux" }, 373 374 { "ADC DIG", NULL, "ADC STM" }, 375 { "ADC DIG", NULL, "ADC Vref" }, 376 { "ADC DIG", NULL, "ADC DLL" }, 377 378 { "Left ADC", NULL, "ADC DIG" }, 379 { "Right ADC", NULL, "ADC DIG" }, 380 381 { "Mic Bias", NULL, "Mic Bias Gen" }, 382 383 { "Left Line Mux", "Line 1", "LINPUT1" }, 384 { "Left Line Mux", "Line 2", "LINPUT2" }, 385 { "Left Line Mux", "PGA", "Left PGA Mux" }, 386 { "Left Line Mux", "Differential", "Differential Mux" }, 387 388 { "Right Line Mux", "Line 1", "RINPUT1" }, 389 { "Right Line Mux", "Line 2", "RINPUT2" }, 390 { "Right Line Mux", "PGA", "Right PGA Mux" }, 391 { "Right Line Mux", "Differential", "Differential Mux" }, 392 393 { "Left Out 1", NULL, "Left DAC" }, 394 { "Right Out 1", NULL, "Right DAC" }, 395 { "Left Out 2", NULL, "Left DAC" }, 396 { "Right Out 2", NULL, "Right DAC" }, 397 398 { "Left Mixer", "Playback Switch", "Left DAC" }, 399 { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, 400 { "Left Mixer", "Right Playback Switch", "Right DAC" }, 401 { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, 402 403 { "Right Mixer", "Left Playback Switch", "Left DAC" }, 404 { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, 405 { "Right Mixer", "Playback Switch", "Right DAC" }, 406 { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, 407 408 { "DAC DIG", NULL, "DAC STM" }, 409 { "DAC DIG", NULL, "DAC Vref" }, 410 { "DAC DIG", NULL, "DAC DLL" }, 411 412 { "Left DAC", NULL, "DAC DIG" }, 413 { "Right DAC", NULL, "DAC DIG" }, 414 415 { "Left Out 1", NULL, "Left Mixer" }, 416 { "LOUT1", NULL, "Left Out 1" }, 417 { "Right Out 1", NULL, "Right Mixer" }, 418 { "ROUT1", NULL, "Right Out 1" }, 419 420 { "Left Out 2", NULL, "Left Mixer" }, 421 { "LOUT2", NULL, "Left Out 2" }, 422 { "Right Out 2", NULL, "Right Mixer" }, 423 { "ROUT2", NULL, "Right Out 2" }, 424 }; 425 426 static int es8328_mute(struct snd_soc_dai *dai, int mute) 427 { 428 return snd_soc_update_bits(dai->codec, ES8328_DACCONTROL3, 429 ES8328_DACCONTROL3_DACMUTE, 430 mute ? ES8328_DACCONTROL3_DACMUTE : 0); 431 } 432 433 static int es8328_hw_params(struct snd_pcm_substream *substream, 434 struct snd_pcm_hw_params *params, 435 struct snd_soc_dai *dai) 436 { 437 struct snd_soc_codec *codec = dai->codec; 438 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 439 int clk_rate; 440 int i; 441 int reg; 442 u8 ratio; 443 444 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 445 reg = ES8328_DACCONTROL2; 446 else 447 reg = ES8328_ADCCONTROL5; 448 449 clk_rate = clk_get_rate(es8328->clk); 450 451 if ((clk_rate != ES8328_SYSCLK_RATE_1X) && 452 (clk_rate != ES8328_SYSCLK_RATE_2X)) { 453 dev_err(codec->dev, 454 "%s: clock is running at %d Hz, not %d or %d Hz\n", 455 __func__, clk_rate, 456 ES8328_SYSCLK_RATE_1X, ES8328_SYSCLK_RATE_2X); 457 return -EINVAL; 458 } 459 460 /* find master mode MCLK to sampling frequency ratio */ 461 ratio = mclk_ratios[0].rate; 462 for (i = 1; i < ARRAY_SIZE(mclk_ratios); i++) 463 if (params_rate(params) <= mclk_ratios[i].rate) 464 ratio = mclk_ratios[i].ratio; 465 466 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 467 es8328->playback_fs = params_rate(params); 468 es8328_set_deemph(codec); 469 } 470 471 return snd_soc_update_bits(codec, reg, ES8328_RATEMASK, ratio); 472 } 473 474 static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai, 475 unsigned int fmt) 476 { 477 struct snd_soc_codec *codec = codec_dai->codec; 478 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 479 int clk_rate; 480 u8 mode = ES8328_DACCONTROL1_DACWL_16; 481 482 /* set master/slave audio interface */ 483 if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBM_CFM) 484 return -EINVAL; 485 486 /* interface format */ 487 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 488 case SND_SOC_DAIFMT_I2S: 489 mode |= ES8328_DACCONTROL1_DACFORMAT_I2S; 490 break; 491 case SND_SOC_DAIFMT_RIGHT_J: 492 mode |= ES8328_DACCONTROL1_DACFORMAT_RJUST; 493 break; 494 case SND_SOC_DAIFMT_LEFT_J: 495 mode |= ES8328_DACCONTROL1_DACFORMAT_LJUST; 496 break; 497 default: 498 return -EINVAL; 499 } 500 501 /* clock inversion */ 502 if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) 503 return -EINVAL; 504 505 snd_soc_write(codec, ES8328_DACCONTROL1, mode); 506 snd_soc_write(codec, ES8328_ADCCONTROL4, mode); 507 508 /* Master serial port mode, with BCLK generated automatically */ 509 clk_rate = clk_get_rate(es8328->clk); 510 if (clk_rate == ES8328_SYSCLK_RATE_1X) 511 snd_soc_write(codec, ES8328_MASTERMODE, 512 ES8328_MASTERMODE_MSC); 513 else 514 snd_soc_write(codec, ES8328_MASTERMODE, 515 ES8328_MASTERMODE_MCLKDIV2 | 516 ES8328_MASTERMODE_MSC); 517 518 return 0; 519 } 520 521 static int es8328_set_bias_level(struct snd_soc_codec *codec, 522 enum snd_soc_bias_level level) 523 { 524 switch (level) { 525 case SND_SOC_BIAS_ON: 526 break; 527 528 case SND_SOC_BIAS_PREPARE: 529 /* VREF, VMID=2x50k, digital enabled */ 530 snd_soc_write(codec, ES8328_CHIPPOWER, 0); 531 snd_soc_update_bits(codec, ES8328_CONTROL1, 532 ES8328_CONTROL1_VMIDSEL_MASK | 533 ES8328_CONTROL1_ENREF, 534 ES8328_CONTROL1_VMIDSEL_50k | 535 ES8328_CONTROL1_ENREF); 536 break; 537 538 case SND_SOC_BIAS_STANDBY: 539 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 540 snd_soc_update_bits(codec, ES8328_CONTROL1, 541 ES8328_CONTROL1_VMIDSEL_MASK | 542 ES8328_CONTROL1_ENREF, 543 ES8328_CONTROL1_VMIDSEL_5k | 544 ES8328_CONTROL1_ENREF); 545 546 /* Charge caps */ 547 msleep(100); 548 } 549 550 snd_soc_write(codec, ES8328_CONTROL2, 551 ES8328_CONTROL2_OVERCURRENT_ON | 552 ES8328_CONTROL2_THERMAL_SHUTDOWN_ON); 553 554 /* VREF, VMID=2*500k, digital stopped */ 555 snd_soc_update_bits(codec, ES8328_CONTROL1, 556 ES8328_CONTROL1_VMIDSEL_MASK | 557 ES8328_CONTROL1_ENREF, 558 ES8328_CONTROL1_VMIDSEL_500k | 559 ES8328_CONTROL1_ENREF); 560 break; 561 562 case SND_SOC_BIAS_OFF: 563 snd_soc_update_bits(codec, ES8328_CONTROL1, 564 ES8328_CONTROL1_VMIDSEL_MASK | 565 ES8328_CONTROL1_ENREF, 566 0); 567 break; 568 } 569 return 0; 570 } 571 572 static const struct snd_soc_dai_ops es8328_dai_ops = { 573 .hw_params = es8328_hw_params, 574 .digital_mute = es8328_mute, 575 .set_fmt = es8328_set_dai_fmt, 576 }; 577 578 static struct snd_soc_dai_driver es8328_dai = { 579 .name = "es8328-hifi-analog", 580 .playback = { 581 .stream_name = "Playback", 582 .channels_min = 2, 583 .channels_max = 2, 584 .rates = ES8328_RATES, 585 .formats = ES8328_FORMATS, 586 }, 587 .capture = { 588 .stream_name = "Capture", 589 .channels_min = 2, 590 .channels_max = 2, 591 .rates = ES8328_RATES, 592 .formats = ES8328_FORMATS, 593 }, 594 .ops = &es8328_dai_ops, 595 }; 596 597 static int es8328_suspend(struct snd_soc_codec *codec) 598 { 599 struct es8328_priv *es8328; 600 int ret; 601 602 es8328 = snd_soc_codec_get_drvdata(codec); 603 604 clk_disable_unprepare(es8328->clk); 605 606 ret = regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 607 es8328->supplies); 608 if (ret) { 609 dev_err(codec->dev, "unable to disable regulators\n"); 610 return ret; 611 } 612 return 0; 613 } 614 615 static int es8328_resume(struct snd_soc_codec *codec) 616 { 617 struct regmap *regmap = dev_get_regmap(codec->dev, NULL); 618 struct es8328_priv *es8328; 619 int ret; 620 621 es8328 = snd_soc_codec_get_drvdata(codec); 622 623 ret = clk_prepare_enable(es8328->clk); 624 if (ret) { 625 dev_err(codec->dev, "unable to enable clock\n"); 626 return ret; 627 } 628 629 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 630 es8328->supplies); 631 if (ret) { 632 dev_err(codec->dev, "unable to enable regulators\n"); 633 return ret; 634 } 635 636 regcache_mark_dirty(regmap); 637 ret = regcache_sync(regmap); 638 if (ret) { 639 dev_err(codec->dev, "unable to sync regcache\n"); 640 return ret; 641 } 642 643 return 0; 644 } 645 646 static int es8328_codec_probe(struct snd_soc_codec *codec) 647 { 648 struct es8328_priv *es8328; 649 int ret; 650 651 es8328 = snd_soc_codec_get_drvdata(codec); 652 653 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 654 es8328->supplies); 655 if (ret) { 656 dev_err(codec->dev, "unable to enable regulators\n"); 657 return ret; 658 } 659 660 /* Setup clocks */ 661 es8328->clk = devm_clk_get(codec->dev, NULL); 662 if (IS_ERR(es8328->clk)) { 663 dev_err(codec->dev, "codec clock missing or invalid\n"); 664 ret = PTR_ERR(es8328->clk); 665 goto clk_fail; 666 } 667 668 ret = clk_prepare_enable(es8328->clk); 669 if (ret) { 670 dev_err(codec->dev, "unable to prepare codec clk\n"); 671 goto clk_fail; 672 } 673 674 return 0; 675 676 clk_fail: 677 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 678 es8328->supplies); 679 return ret; 680 } 681 682 static int es8328_remove(struct snd_soc_codec *codec) 683 { 684 struct es8328_priv *es8328; 685 686 es8328 = snd_soc_codec_get_drvdata(codec); 687 688 if (es8328->clk) 689 clk_disable_unprepare(es8328->clk); 690 691 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 692 es8328->supplies); 693 694 return 0; 695 } 696 697 const struct regmap_config es8328_regmap_config = { 698 .reg_bits = 8, 699 .val_bits = 8, 700 .max_register = ES8328_REG_MAX, 701 .cache_type = REGCACHE_RBTREE, 702 }; 703 EXPORT_SYMBOL_GPL(es8328_regmap_config); 704 705 static struct snd_soc_codec_driver es8328_codec_driver = { 706 .probe = es8328_codec_probe, 707 .suspend = es8328_suspend, 708 .resume = es8328_resume, 709 .remove = es8328_remove, 710 .set_bias_level = es8328_set_bias_level, 711 .suspend_bias_off = true, 712 713 .controls = es8328_snd_controls, 714 .num_controls = ARRAY_SIZE(es8328_snd_controls), 715 .dapm_widgets = es8328_dapm_widgets, 716 .num_dapm_widgets = ARRAY_SIZE(es8328_dapm_widgets), 717 .dapm_routes = es8328_dapm_routes, 718 .num_dapm_routes = ARRAY_SIZE(es8328_dapm_routes), 719 }; 720 721 int es8328_probe(struct device *dev, struct regmap *regmap) 722 { 723 struct es8328_priv *es8328; 724 int ret; 725 int i; 726 727 if (IS_ERR(regmap)) 728 return PTR_ERR(regmap); 729 730 es8328 = devm_kzalloc(dev, sizeof(*es8328), GFP_KERNEL); 731 if (es8328 == NULL) 732 return -ENOMEM; 733 734 es8328->regmap = regmap; 735 736 for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++) 737 es8328->supplies[i].supply = supply_names[i]; 738 739 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(es8328->supplies), 740 es8328->supplies); 741 if (ret) { 742 dev_err(dev, "unable to get regulators\n"); 743 return ret; 744 } 745 746 dev_set_drvdata(dev, es8328); 747 748 return snd_soc_register_codec(dev, 749 &es8328_codec_driver, &es8328_dai, 1); 750 } 751 EXPORT_SYMBOL_GPL(es8328_probe); 752 753 MODULE_DESCRIPTION("ASoC ES8328 driver"); 754 MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>"); 755 MODULE_LICENSE("GPL"); 756