1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2011 LAPIS Semiconductor Co., Ltd. 4 */ 5 6 #include <linux/module.h> 7 #include <linux/moduleparam.h> 8 #include <linux/init.h> 9 #include <linux/delay.h> 10 #include <linux/pm.h> 11 #include <linux/i2c.h> 12 #include <linux/slab.h> 13 #include <linux/platform_device.h> 14 #include <linux/regmap.h> 15 #include <sound/core.h> 16 #include <sound/pcm.h> 17 #include <sound/pcm_params.h> 18 #include <sound/soc.h> 19 #include <sound/tlv.h> 20 #include "ml26124.h" 21 22 #define DVOL_CTL_DVMUTE_ON BIT(4) /* Digital volume MUTE On */ 23 #define DVOL_CTL_DVMUTE_OFF 0 /* Digital volume MUTE Off */ 24 #define ML26124_SAI_NO_DELAY BIT(1) 25 #define ML26124_SAI_FRAME_SYNC (BIT(5) | BIT(0)) /* For mono (Telecodec) */ 26 #define ML26134_CACHESIZE 212 27 #define ML26124_VMID BIT(1) 28 #define ML26124_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 |\ 29 SNDRV_PCM_RATE_48000) 30 #define ML26124_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |\ 31 SNDRV_PCM_FMTBIT_S32_LE) 32 #define ML26124_NUM_REGISTER ML26134_CACHESIZE 33 34 struct ml26124_priv { 35 u32 mclk; 36 u32 rate; 37 struct regmap *regmap; 38 int clk_in; 39 struct snd_pcm_substream *substream; 40 }; 41 42 struct clk_coeff { 43 u32 mclk; 44 u32 rate; 45 u8 pllnl; 46 u8 pllnh; 47 u8 pllml; 48 u8 pllmh; 49 u8 plldiv; 50 }; 51 52 /* ML26124 configuration */ 53 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7150, 50, 0); 54 55 static const DECLARE_TLV_DB_SCALE(alclvl, -2250, 150, 0); 56 static const DECLARE_TLV_DB_SCALE(mingain, -1200, 600, 0); 57 static const DECLARE_TLV_DB_SCALE(maxgain, -675, 600, 0); 58 static const DECLARE_TLV_DB_SCALE(boost_vol, -1200, 75, 0); 59 60 static const char * const ml26124_companding[] = {"16bit PCM", "u-law", 61 "A-law"}; 62 63 static SOC_ENUM_SINGLE_DECL(ml26124_adc_companding_enum, 64 ML26124_SAI_TRANS_CTL, 6, ml26124_companding); 65 66 static SOC_ENUM_SINGLE_DECL(ml26124_dac_companding_enum, 67 ML26124_SAI_RCV_CTL, 6, ml26124_companding); 68 69 static const struct snd_kcontrol_new ml26124_snd_controls[] = { 70 SOC_SINGLE_TLV("Capture Digital Volume", ML26124_RECORD_DIG_VOL, 0, 71 0xff, 1, digital_tlv), 72 SOC_SINGLE_TLV("Playback Digital Volume", ML26124_PLBAK_DIG_VOL, 0, 73 0xff, 1, digital_tlv), 74 SOC_SINGLE_TLV("Digital Boost Volume", ML26124_DIGI_BOOST_VOL, 0, 75 0x3f, 0, boost_vol), 76 SOC_SINGLE_TLV("EQ Band0 Volume", ML26124_EQ_GAIN_BRAND0, 0, 77 0xff, 1, digital_tlv), 78 SOC_SINGLE_TLV("EQ Band1 Volume", ML26124_EQ_GAIN_BRAND1, 0, 79 0xff, 1, digital_tlv), 80 SOC_SINGLE_TLV("EQ Band2 Volume", ML26124_EQ_GAIN_BRAND2, 0, 81 0xff, 1, digital_tlv), 82 SOC_SINGLE_TLV("EQ Band3 Volume", ML26124_EQ_GAIN_BRAND3, 0, 83 0xff, 1, digital_tlv), 84 SOC_SINGLE_TLV("EQ Band4 Volume", ML26124_EQ_GAIN_BRAND4, 0, 85 0xff, 1, digital_tlv), 86 SOC_SINGLE_TLV("ALC Target Level", ML26124_ALC_TARGET_LEV, 0, 87 0xf, 1, alclvl), 88 SOC_SINGLE_TLV("ALC Min Input Volume", ML26124_ALC_MAXMIN_GAIN, 0, 89 7, 0, mingain), 90 SOC_SINGLE_TLV("ALC Max Input Volume", ML26124_ALC_MAXMIN_GAIN, 4, 91 7, 1, maxgain), 92 SOC_SINGLE_TLV("Playback Limiter Min Input Volume", 93 ML26124_PL_MAXMIN_GAIN, 0, 7, 0, mingain), 94 SOC_SINGLE_TLV("Playback Limiter Max Input Volume", 95 ML26124_PL_MAXMIN_GAIN, 4, 7, 1, maxgain), 96 SOC_SINGLE_TLV("Playback Boost Volume", ML26124_PLYBAK_BOST_VOL, 0, 97 0x3f, 0, boost_vol), 98 SOC_SINGLE("DC High Pass Filter Switch", ML26124_FILTER_EN, 0, 1, 0), 99 SOC_SINGLE("Noise High Pass Filter Switch", ML26124_FILTER_EN, 1, 1, 0), 100 SOC_SINGLE("ZC Switch", ML26124_PW_ZCCMP_PW_MNG, 1, 101 1, 0), 102 SOC_SINGLE("EQ Band0 Switch", ML26124_FILTER_EN, 2, 1, 0), 103 SOC_SINGLE("EQ Band1 Switch", ML26124_FILTER_EN, 3, 1, 0), 104 SOC_SINGLE("EQ Band2 Switch", ML26124_FILTER_EN, 4, 1, 0), 105 SOC_SINGLE("EQ Band3 Switch", ML26124_FILTER_EN, 5, 1, 0), 106 SOC_SINGLE("EQ Band4 Switch", ML26124_FILTER_EN, 6, 1, 0), 107 SOC_SINGLE("Play Limiter", ML26124_DVOL_CTL, 0, 1, 0), 108 SOC_SINGLE("Capture Limiter", ML26124_DVOL_CTL, 1, 1, 0), 109 SOC_SINGLE("Digital Volume Fade Switch", ML26124_DVOL_CTL, 3, 1, 0), 110 SOC_SINGLE("Digital Switch", ML26124_DVOL_CTL, 4, 1, 0), 111 SOC_ENUM("DAC Companding", ml26124_dac_companding_enum), 112 SOC_ENUM("ADC Companding", ml26124_adc_companding_enum), 113 }; 114 115 static const struct snd_kcontrol_new ml26124_output_mixer_controls[] = { 116 SOC_DAPM_SINGLE("DAC Switch", ML26124_SPK_AMP_OUT, 1, 1, 0), 117 SOC_DAPM_SINGLE("Line in loopback Switch", ML26124_SPK_AMP_OUT, 3, 1, 118 0), 119 SOC_DAPM_SINGLE("PGA Switch", ML26124_SPK_AMP_OUT, 5, 1, 0), 120 }; 121 122 /* Input mux */ 123 static const char * const ml26124_input_select[] = {"Analog MIC SingleEnded in", 124 "Digital MIC in", "Analog MIC Differential in"}; 125 126 static SOC_ENUM_SINGLE_DECL(ml26124_insel_enum, 127 ML26124_MIC_IF_CTL, 0, ml26124_input_select); 128 129 static const struct snd_kcontrol_new ml26124_input_mux_controls = 130 SOC_DAPM_ENUM("Input Select", ml26124_insel_enum); 131 132 static const struct snd_kcontrol_new ml26124_line_control = 133 SOC_DAPM_SINGLE("Switch", ML26124_PW_LOUT_PW_MNG, 1, 1, 0); 134 135 static const struct snd_soc_dapm_widget ml26124_dapm_widgets[] = { 136 SND_SOC_DAPM_SUPPLY("MCLKEN", ML26124_CLK_EN, 0, 0, NULL, 0), 137 SND_SOC_DAPM_SUPPLY("PLLEN", ML26124_CLK_EN, 1, 0, NULL, 0), 138 SND_SOC_DAPM_SUPPLY("PLLOE", ML26124_CLK_EN, 2, 0, NULL, 0), 139 SND_SOC_DAPM_SUPPLY("MICBIAS", ML26124_PW_REF_PW_MNG, 2, 0, NULL, 0), 140 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 141 &ml26124_output_mixer_controls[0], 142 ARRAY_SIZE(ml26124_output_mixer_controls)), 143 SND_SOC_DAPM_DAC("DAC", "Playback", ML26124_PW_DAC_PW_MNG, 1, 0), 144 SND_SOC_DAPM_ADC("ADC", "Capture", ML26124_PW_IN_PW_MNG, 1, 0), 145 SND_SOC_DAPM_PGA("PGA", ML26124_PW_IN_PW_MNG, 3, 0, NULL, 0), 146 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, 147 &ml26124_input_mux_controls), 148 SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0, 149 &ml26124_line_control), 150 SND_SOC_DAPM_INPUT("MDIN"), 151 SND_SOC_DAPM_INPUT("MIN"), 152 SND_SOC_DAPM_INPUT("LIN"), 153 SND_SOC_DAPM_OUTPUT("SPOUT"), 154 SND_SOC_DAPM_OUTPUT("LOUT"), 155 }; 156 157 static const struct snd_soc_dapm_route ml26124_intercon[] = { 158 /* Supply */ 159 {"DAC", NULL, "MCLKEN"}, 160 {"ADC", NULL, "MCLKEN"}, 161 {"DAC", NULL, "PLLEN"}, 162 {"ADC", NULL, "PLLEN"}, 163 {"DAC", NULL, "PLLOE"}, 164 {"ADC", NULL, "PLLOE"}, 165 166 /* output mixer */ 167 {"Output Mixer", "DAC Switch", "DAC"}, 168 {"Output Mixer", "Line in loopback Switch", "LIN"}, 169 170 /* outputs */ 171 {"LOUT", NULL, "Output Mixer"}, 172 {"SPOUT", NULL, "Output Mixer"}, 173 {"Line Out Enable", NULL, "LOUT"}, 174 175 /* input */ 176 {"ADC", NULL, "Input Mux"}, 177 {"Input Mux", "Analog MIC SingleEnded in", "PGA"}, 178 {"Input Mux", "Analog MIC Differential in", "PGA"}, 179 {"PGA", NULL, "MIN"}, 180 }; 181 182 /* PLLOutputFreq(Hz) = InputMclkFreq(Hz) * PLLM / (PLLN * PLLDIV) */ 183 static const struct clk_coeff coeff_div[] = { 184 {12288000, 16000, 0xc, 0x0, 0x20, 0x0, 0x4}, 185 {12288000, 32000, 0xc, 0x0, 0x20, 0x0, 0x4}, 186 {12288000, 48000, 0xc, 0x0, 0x30, 0x0, 0x4}, 187 }; 188 189 static const struct reg_default ml26124_reg[] = { 190 /* CLOCK control Register */ 191 {0x00, 0x00 }, /* Sampling Rate */ 192 {0x02, 0x00}, /* PLL NL */ 193 {0x04, 0x00}, /* PLLNH */ 194 {0x06, 0x00}, /* PLLML */ 195 {0x08, 0x00}, /* MLLMH */ 196 {0x0a, 0x00}, /* PLLDIV */ 197 {0x0c, 0x00}, /* Clock Enable */ 198 {0x0e, 0x00}, /* CLK Input/Output Control */ 199 200 /* System Control Register */ 201 {0x10, 0x00}, /* Software RESET */ 202 {0x12, 0x00}, /* Record/Playback Run */ 203 {0x14, 0x00}, /* Mic Input/Output control */ 204 205 /* Power Management Register */ 206 {0x20, 0x00}, /* Reference Power Management */ 207 {0x22, 0x00}, /* Input Power Management */ 208 {0x24, 0x00}, /* DAC Power Management */ 209 {0x26, 0x00}, /* SP-AMP Power Management */ 210 {0x28, 0x00}, /* LINEOUT Power Management */ 211 {0x2a, 0x00}, /* VIDEO Power Management */ 212 {0x2e, 0x00}, /* AC-CMP Power Management */ 213 214 /* Analog reference Control Register */ 215 {0x30, 0x04}, /* MICBIAS Voltage Control */ 216 217 /* Input/Output Amplifier Control Register */ 218 {0x32, 0x10}, /* MIC Input Volume */ 219 {0x38, 0x00}, /* Mic Boost Volume */ 220 {0x3a, 0x33}, /* Speaker AMP Volume */ 221 {0x48, 0x00}, /* AMP Volume Control Function Enable */ 222 {0x4a, 0x00}, /* Amplifier Volume Fader Control */ 223 224 /* Analog Path Control Register */ 225 {0x54, 0x00}, /* Speaker AMP Output Control */ 226 {0x5a, 0x00}, /* Mic IF Control */ 227 {0xe8, 0x01}, /* Mic Select Control */ 228 229 /* Audio Interface Control Register */ 230 {0x60, 0x00}, /* SAI-Trans Control */ 231 {0x62, 0x00}, /* SAI-Receive Control */ 232 {0x64, 0x00}, /* SAI Mode select */ 233 234 /* DSP Control Register */ 235 {0x66, 0x01}, /* Filter Func Enable */ 236 {0x68, 0x00}, /* Volume Control Func Enable */ 237 {0x6A, 0x00}, /* Mixer & Volume Control*/ 238 {0x6C, 0xff}, /* Record Digital Volume */ 239 {0x70, 0xff}, /* Playback Digital Volume */ 240 {0x72, 0x10}, /* Digital Boost Volume */ 241 {0x74, 0xe7}, /* EQ gain Band0 */ 242 {0x76, 0xe7}, /* EQ gain Band1 */ 243 {0x78, 0xe7}, /* EQ gain Band2 */ 244 {0x7A, 0xe7}, /* EQ gain Band3 */ 245 {0x7C, 0xe7}, /* EQ gain Band4 */ 246 {0x7E, 0x00}, /* HPF2 CutOff*/ 247 {0x80, 0x00}, /* EQ Band0 Coef0L */ 248 {0x82, 0x00}, /* EQ Band0 Coef0H */ 249 {0x84, 0x00}, /* EQ Band0 Coef0L */ 250 {0x86, 0x00}, /* EQ Band0 Coef0H */ 251 {0x88, 0x00}, /* EQ Band1 Coef0L */ 252 {0x8A, 0x00}, /* EQ Band1 Coef0H */ 253 {0x8C, 0x00}, /* EQ Band1 Coef0L */ 254 {0x8E, 0x00}, /* EQ Band1 Coef0H */ 255 {0x90, 0x00}, /* EQ Band2 Coef0L */ 256 {0x92, 0x00}, /* EQ Band2 Coef0H */ 257 {0x94, 0x00}, /* EQ Band2 Coef0L */ 258 {0x96, 0x00}, /* EQ Band2 Coef0H */ 259 {0x98, 0x00}, /* EQ Band3 Coef0L */ 260 {0x9A, 0x00}, /* EQ Band3 Coef0H */ 261 {0x9C, 0x00}, /* EQ Band3 Coef0L */ 262 {0x9E, 0x00}, /* EQ Band3 Coef0H */ 263 {0xA0, 0x00}, /* EQ Band4 Coef0L */ 264 {0xA2, 0x00}, /* EQ Band4 Coef0H */ 265 {0xA4, 0x00}, /* EQ Band4 Coef0L */ 266 {0xA6, 0x00}, /* EQ Band4 Coef0H */ 267 268 /* ALC Control Register */ 269 {0xb0, 0x00}, /* ALC Mode */ 270 {0xb2, 0x02}, /* ALC Attack Time */ 271 {0xb4, 0x03}, /* ALC Decay Time */ 272 {0xb6, 0x00}, /* ALC Hold Time */ 273 {0xb8, 0x0b}, /* ALC Target Level */ 274 {0xba, 0x70}, /* ALC Max/Min Gain */ 275 {0xbc, 0x00}, /* Noise Gate Threshold */ 276 {0xbe, 0x00}, /* ALC ZeroCross TimeOut */ 277 278 /* Playback Limiter Control Register */ 279 {0xc0, 0x04}, /* PL Attack Time */ 280 {0xc2, 0x05}, /* PL Decay Time */ 281 {0xc4, 0x0d}, /* PL Target Level */ 282 {0xc6, 0x70}, /* PL Max/Min Gain */ 283 {0xc8, 0x10}, /* Playback Boost Volume */ 284 {0xca, 0x00}, /* PL ZeroCross TimeOut */ 285 286 /* Video Amplifier Control Register */ 287 {0xd0, 0x01}, /* VIDEO AMP Gain Control */ 288 {0xd2, 0x01}, /* VIDEO AMP Setup 1 */ 289 {0xd4, 0x01}, /* VIDEO AMP Control2 */ 290 }; 291 292 /* Get sampling rate value of sampling rate setting register (0x0) */ get_srate(int rate)293 static inline int get_srate(int rate) 294 { 295 int srate; 296 297 switch (rate) { 298 case 16000: 299 srate = 3; 300 break; 301 case 32000: 302 srate = 6; 303 break; 304 case 48000: 305 srate = 8; 306 break; 307 default: 308 return -EINVAL; 309 } 310 return srate; 311 } 312 get_coeff(int mclk,int rate)313 static inline int get_coeff(int mclk, int rate) 314 { 315 int i; 316 317 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 318 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) 319 return i; 320 } 321 return -EINVAL; 322 } 323 ml26124_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params,struct snd_soc_dai * dai)324 static int ml26124_hw_params(struct snd_pcm_substream *substream, 325 struct snd_pcm_hw_params *hw_params, 326 struct snd_soc_dai *dai) 327 { 328 struct snd_soc_component *component = dai->component; 329 struct ml26124_priv *priv = snd_soc_component_get_drvdata(component); 330 int i = get_coeff(priv->mclk, params_rate(hw_params)); 331 int srate; 332 333 if (i < 0) 334 return i; 335 priv->substream = substream; 336 priv->rate = params_rate(hw_params); 337 338 if (priv->clk_in) { 339 switch (priv->mclk / params_rate(hw_params)) { 340 case 256: 341 snd_soc_component_update_bits(component, ML26124_CLK_CTL, 342 BIT(0) | BIT(1), 1); 343 break; 344 case 512: 345 snd_soc_component_update_bits(component, ML26124_CLK_CTL, 346 BIT(0) | BIT(1), 2); 347 break; 348 case 1024: 349 snd_soc_component_update_bits(component, ML26124_CLK_CTL, 350 BIT(0) | BIT(1), 3); 351 break; 352 default: 353 dev_err(component->dev, "Unsupported MCLKI\n"); 354 break; 355 } 356 } else { 357 snd_soc_component_update_bits(component, ML26124_CLK_CTL, 358 BIT(0) | BIT(1), 0); 359 } 360 361 srate = get_srate(params_rate(hw_params)); 362 if (srate < 0) 363 return srate; 364 365 snd_soc_component_update_bits(component, ML26124_SMPLING_RATE, 0xf, srate); 366 snd_soc_component_update_bits(component, ML26124_PLLNL, 0xff, coeff_div[i].pllnl); 367 snd_soc_component_update_bits(component, ML26124_PLLNH, 0x1, coeff_div[i].pllnh); 368 snd_soc_component_update_bits(component, ML26124_PLLML, 0xff, coeff_div[i].pllml); 369 snd_soc_component_update_bits(component, ML26124_PLLMH, 0x3f, coeff_div[i].pllmh); 370 snd_soc_component_update_bits(component, ML26124_PLLDIV, 0x1f, coeff_div[i].plldiv); 371 372 return 0; 373 } 374 ml26124_mute(struct snd_soc_dai * dai,int mute,int direction)375 static int ml26124_mute(struct snd_soc_dai *dai, int mute, int direction) 376 { 377 struct snd_soc_component *component = dai->component; 378 struct ml26124_priv *priv = snd_soc_component_get_drvdata(component); 379 380 switch (priv->substream->stream) { 381 case SNDRV_PCM_STREAM_CAPTURE: 382 snd_soc_component_update_bits(component, ML26124_REC_PLYBAK_RUN, BIT(0), 1); 383 break; 384 case SNDRV_PCM_STREAM_PLAYBACK: 385 snd_soc_component_update_bits(component, ML26124_REC_PLYBAK_RUN, BIT(1), 2); 386 break; 387 } 388 389 if (mute) 390 snd_soc_component_update_bits(component, ML26124_DVOL_CTL, BIT(4), 391 DVOL_CTL_DVMUTE_ON); 392 else 393 snd_soc_component_update_bits(component, ML26124_DVOL_CTL, BIT(4), 394 DVOL_CTL_DVMUTE_OFF); 395 396 return 0; 397 } 398 ml26124_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)399 static int ml26124_set_dai_fmt(struct snd_soc_dai *codec_dai, 400 unsigned int fmt) 401 { 402 unsigned char mode; 403 struct snd_soc_component *component = codec_dai->component; 404 405 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 406 case SND_SOC_DAIFMT_CBP_CFP: 407 mode = 1; 408 break; 409 case SND_SOC_DAIFMT_CBC_CFC: 410 mode = 0; 411 break; 412 default: 413 return -EINVAL; 414 } 415 snd_soc_component_update_bits(component, ML26124_SAI_MODE_SEL, BIT(0), mode); 416 417 /* interface format */ 418 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 419 case SND_SOC_DAIFMT_I2S: 420 break; 421 default: 422 return -EINVAL; 423 } 424 425 /* clock inversion */ 426 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 427 case SND_SOC_DAIFMT_NB_NF: 428 break; 429 default: 430 return -EINVAL; 431 } 432 433 return 0; 434 } 435 ml26124_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)436 static int ml26124_set_dai_sysclk(struct snd_soc_dai *codec_dai, 437 int clk_id, unsigned int freq, int dir) 438 { 439 struct snd_soc_component *component = codec_dai->component; 440 struct ml26124_priv *priv = snd_soc_component_get_drvdata(component); 441 442 switch (clk_id) { 443 case ML26124_USE_PLLOUT: 444 priv->clk_in = ML26124_USE_PLLOUT; 445 break; 446 case ML26124_USE_MCLKI: 447 priv->clk_in = ML26124_USE_MCLKI; 448 break; 449 default: 450 return -EINVAL; 451 } 452 453 priv->mclk = freq; 454 455 return 0; 456 } 457 ml26124_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)458 static int ml26124_set_bias_level(struct snd_soc_component *component, 459 enum snd_soc_bias_level level) 460 { 461 struct ml26124_priv *priv = snd_soc_component_get_drvdata(component); 462 463 switch (level) { 464 case SND_SOC_BIAS_ON: 465 snd_soc_component_update_bits(component, ML26124_PW_SPAMP_PW_MNG, 466 ML26124_R26_MASK, ML26124_BLT_PREAMP_ON); 467 msleep(100); 468 snd_soc_component_update_bits(component, ML26124_PW_SPAMP_PW_MNG, 469 ML26124_R26_MASK, 470 ML26124_MICBEN_ON | ML26124_BLT_ALL_ON); 471 break; 472 case SND_SOC_BIAS_PREPARE: 473 break; 474 case SND_SOC_BIAS_STANDBY: 475 /* VMID ON */ 476 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 477 snd_soc_component_update_bits(component, ML26124_PW_REF_PW_MNG, 478 ML26124_VMID, ML26124_VMID); 479 msleep(500); 480 regcache_sync(priv->regmap); 481 } 482 break; 483 case SND_SOC_BIAS_OFF: 484 /* VMID OFF */ 485 snd_soc_component_update_bits(component, ML26124_PW_REF_PW_MNG, 486 ML26124_VMID, 0); 487 break; 488 } 489 return 0; 490 } 491 492 static const struct snd_soc_dai_ops ml26124_dai_ops = { 493 .hw_params = ml26124_hw_params, 494 .mute_stream = ml26124_mute, 495 .set_fmt = ml26124_set_dai_fmt, 496 .set_sysclk = ml26124_set_dai_sysclk, 497 .no_capture_mute = 1, 498 }; 499 500 static struct snd_soc_dai_driver ml26124_dai = { 501 .name = "ml26124-hifi", 502 .playback = { 503 .stream_name = "Playback", 504 .channels_min = 1, 505 .channels_max = 2, 506 .rates = ML26124_RATES, 507 .formats = ML26124_FORMATS,}, 508 .capture = { 509 .stream_name = "Capture", 510 .channels_min = 1, 511 .channels_max = 2, 512 .rates = ML26124_RATES, 513 .formats = ML26124_FORMATS,}, 514 .ops = &ml26124_dai_ops, 515 .symmetric_rate = 1, 516 }; 517 ml26124_probe(struct snd_soc_component * component)518 static int ml26124_probe(struct snd_soc_component *component) 519 { 520 /* Software Reset */ 521 snd_soc_component_update_bits(component, ML26124_SW_RST, 0x01, 1); 522 snd_soc_component_update_bits(component, ML26124_SW_RST, 0x01, 0); 523 524 return 0; 525 } 526 527 static const struct snd_soc_component_driver soc_component_dev_ml26124 = { 528 .probe = ml26124_probe, 529 .set_bias_level = ml26124_set_bias_level, 530 .controls = ml26124_snd_controls, 531 .num_controls = ARRAY_SIZE(ml26124_snd_controls), 532 .dapm_widgets = ml26124_dapm_widgets, 533 .num_dapm_widgets = ARRAY_SIZE(ml26124_dapm_widgets), 534 .dapm_routes = ml26124_intercon, 535 .num_dapm_routes = ARRAY_SIZE(ml26124_intercon), 536 .suspend_bias_off = 1, 537 .idle_bias_on = 1, 538 .use_pmdown_time = 1, 539 .endianness = 1, 540 }; 541 542 static const struct regmap_config ml26124_i2c_regmap = { 543 .val_bits = 8, 544 .reg_bits = 8, 545 .max_register = ML26124_NUM_REGISTER, 546 .reg_defaults = ml26124_reg, 547 .num_reg_defaults = ARRAY_SIZE(ml26124_reg), 548 .cache_type = REGCACHE_RBTREE, 549 .write_flag_mask = 0x01, 550 }; 551 ml26124_i2c_probe(struct i2c_client * i2c)552 static int ml26124_i2c_probe(struct i2c_client *i2c) 553 { 554 struct ml26124_priv *priv; 555 int ret; 556 557 priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL); 558 if (!priv) 559 return -ENOMEM; 560 561 i2c_set_clientdata(i2c, priv); 562 563 priv->regmap = devm_regmap_init_i2c(i2c, &ml26124_i2c_regmap); 564 if (IS_ERR(priv->regmap)) { 565 ret = PTR_ERR(priv->regmap); 566 dev_err(&i2c->dev, "regmap_init_i2c() failed: %d\n", ret); 567 return ret; 568 } 569 570 return devm_snd_soc_register_component(&i2c->dev, 571 &soc_component_dev_ml26124, &ml26124_dai, 1); 572 } 573 574 static const struct i2c_device_id ml26124_i2c_id[] = { 575 { "ml26124", 0 }, 576 { } 577 }; 578 MODULE_DEVICE_TABLE(i2c, ml26124_i2c_id); 579 580 static struct i2c_driver ml26124_i2c_driver = { 581 .driver = { 582 .name = "ml26124", 583 }, 584 .probe = ml26124_i2c_probe, 585 .id_table = ml26124_i2c_id, 586 }; 587 588 module_i2c_driver(ml26124_i2c_driver); 589 590 MODULE_AUTHOR("Tomoya MORINAGA <tomoya.rohm@gmail.com>"); 591 MODULE_DESCRIPTION("LAPIS Semiconductor ML26124 ALSA SoC codec driver"); 592 MODULE_LICENSE("GPL"); 593