1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Audio driver for AK4458 DAC 4 // 5 // Copyright (C) 2016 Asahi Kasei Microdevices Corporation 6 // Copyright 2018 NXP 7 8 #include <linux/delay.h> 9 #include <linux/gpio/consumer.h> 10 #include <linux/i2c.h> 11 #include <linux/module.h> 12 #include <linux/of_device.h> 13 #include <linux/of_gpio.h> 14 #include <linux/pm_runtime.h> 15 #include <linux/slab.h> 16 #include <sound/initval.h> 17 #include <sound/pcm_params.h> 18 #include <sound/soc.h> 19 #include <sound/soc-dapm.h> 20 #include <sound/tlv.h> 21 22 #include "ak4458.h" 23 24 struct ak4458_drvdata { 25 struct snd_soc_dai_driver *dai_drv; 26 const struct snd_soc_component_driver *comp_drv; 27 }; 28 29 /* AK4458 Codec Private Data */ 30 struct ak4458_priv { 31 struct device *dev; 32 struct regmap *regmap; 33 struct gpio_desc *reset_gpiod; 34 struct gpio_desc *mute_gpiod; 35 int digfil; /* SSLOW, SD, SLOW bits */ 36 int fs; /* sampling rate */ 37 int fmt; 38 int slots; 39 int slot_width; 40 }; 41 42 static const struct reg_default ak4458_reg_defaults[] = { 43 { 0x00, 0x0C }, /* 0x00 AK4458_00_CONTROL1 */ 44 { 0x01, 0x22 }, /* 0x01 AK4458_01_CONTROL2 */ 45 { 0x02, 0x00 }, /* 0x02 AK4458_02_CONTROL3 */ 46 { 0x03, 0xFF }, /* 0x03 AK4458_03_LCHATT */ 47 { 0x04, 0xFF }, /* 0x04 AK4458_04_RCHATT */ 48 { 0x05, 0x00 }, /* 0x05 AK4458_05_CONTROL4 */ 49 { 0x06, 0x00 }, /* 0x06 AK4458_06_DSD1 */ 50 { 0x07, 0x03 }, /* 0x07 AK4458_07_CONTROL5 */ 51 { 0x08, 0x00 }, /* 0x08 AK4458_08_SOUND_CONTROL */ 52 { 0x09, 0x00 }, /* 0x09 AK4458_09_DSD2 */ 53 { 0x0A, 0x0D }, /* 0x0A AK4458_0A_CONTROL6 */ 54 { 0x0B, 0x0C }, /* 0x0B AK4458_0B_CONTROL7 */ 55 { 0x0C, 0x00 }, /* 0x0C AK4458_0C_CONTROL8 */ 56 { 0x0D, 0x00 }, /* 0x0D AK4458_0D_CONTROL9 */ 57 { 0x0E, 0x50 }, /* 0x0E AK4458_0E_CONTROL10 */ 58 { 0x0F, 0xFF }, /* 0x0F AK4458_0F_L2CHATT */ 59 { 0x10, 0xFF }, /* 0x10 AK4458_10_R2CHATT */ 60 { 0x11, 0xFF }, /* 0x11 AK4458_11_L3CHATT */ 61 { 0x12, 0xFF }, /* 0x12 AK4458_12_R3CHATT */ 62 { 0x13, 0xFF }, /* 0x13 AK4458_13_L4CHATT */ 63 { 0x14, 0xFF }, /* 0x14 AK4458_14_R4CHATT */ 64 }; 65 66 /* 67 * Volume control: 68 * from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB) 69 */ 70 static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); 71 72 /* 73 * DEM1 bit DEM0 bit Mode 74 * 0 0 44.1kHz 75 * 0 1 OFF (default) 76 * 1 0 48kHz 77 * 1 1 32kHz 78 */ 79 static const char * const ak4458_dem_select_texts[] = { 80 "44.1kHz", "OFF", "48kHz", "32kHz" 81 }; 82 83 /* 84 * SSLOW, SD, SLOW bits Digital Filter Setting 85 * 0, 0, 0 : Sharp Roll-Off Filter 86 * 0, 0, 1 : Slow Roll-Off Filter 87 * 0, 1, 0 : Short delay Sharp Roll-Off Filter 88 * 0, 1, 1 : Short delay Slow Roll-Off Filter 89 * 1, *, * : Super Slow Roll-Off Filter 90 */ 91 static const char * const ak4458_digfil_select_texts[] = { 92 "Sharp Roll-Off Filter", 93 "Slow Roll-Off Filter", 94 "Short delay Sharp Roll-Off Filter", 95 "Short delay Slow Roll-Off Filter", 96 "Super Slow Roll-Off Filter" 97 }; 98 99 /* 100 * DZFB: Inverting Enable of DZF 101 * 0: DZF goes H at Zero Detection 102 * 1: DZF goes L at Zero Detection 103 */ 104 static const char * const ak4458_dzfb_select_texts[] = {"H", "L"}; 105 106 /* 107 * SC1-0 bits: Sound Mode Setting 108 * 0 0 : Sound Mode 0 109 * 0 1 : Sound Mode 1 110 * 1 0 : Sound Mode 2 111 * 1 1 : Reserved 112 */ 113 static const char * const ak4458_sc_select_texts[] = { 114 "Sound Mode 0", "Sound Mode 1", "Sound Mode 2" 115 }; 116 117 /* FIR2-0 bits: FIR Filter Mode Setting */ 118 static const char * const ak4458_fir_select_texts[] = { 119 "Mode 0", "Mode 1", "Mode 2", "Mode 3", 120 "Mode 4", "Mode 5", "Mode 6", "Mode 7", 121 }; 122 123 /* ATS1-0 bits Attenuation Speed */ 124 static const char * const ak4458_ats_select_texts[] = { 125 "4080/fs", "2040/fs", "510/fs", "255/fs", 126 }; 127 128 /* DIF2 bit Audio Interface Format Setting(BICK fs) */ 129 static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",}; 130 131 static const struct soc_enum ak4458_dac1_dem_enum = 132 SOC_ENUM_SINGLE(AK4458_01_CONTROL2, 1, 133 ARRAY_SIZE(ak4458_dem_select_texts), 134 ak4458_dem_select_texts); 135 static const struct soc_enum ak4458_dac2_dem_enum = 136 SOC_ENUM_SINGLE(AK4458_0A_CONTROL6, 0, 137 ARRAY_SIZE(ak4458_dem_select_texts), 138 ak4458_dem_select_texts); 139 static const struct soc_enum ak4458_dac3_dem_enum = 140 SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 4, 141 ARRAY_SIZE(ak4458_dem_select_texts), 142 ak4458_dem_select_texts); 143 static const struct soc_enum ak4458_dac4_dem_enum = 144 SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 6, 145 ARRAY_SIZE(ak4458_dem_select_texts), 146 ak4458_dem_select_texts); 147 static const struct soc_enum ak4458_digfil_enum = 148 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts), 149 ak4458_digfil_select_texts); 150 static const struct soc_enum ak4458_dzfb_enum = 151 SOC_ENUM_SINGLE(AK4458_02_CONTROL3, 2, 152 ARRAY_SIZE(ak4458_dzfb_select_texts), 153 ak4458_dzfb_select_texts); 154 static const struct soc_enum ak4458_sm_enum = 155 SOC_ENUM_SINGLE(AK4458_08_SOUND_CONTROL, 0, 156 ARRAY_SIZE(ak4458_sc_select_texts), 157 ak4458_sc_select_texts); 158 static const struct soc_enum ak4458_fir_enum = 159 SOC_ENUM_SINGLE(AK4458_0C_CONTROL8, 0, 160 ARRAY_SIZE(ak4458_fir_select_texts), 161 ak4458_fir_select_texts); 162 static const struct soc_enum ak4458_ats_enum = 163 SOC_ENUM_SINGLE(AK4458_0B_CONTROL7, 6, 164 ARRAY_SIZE(ak4458_ats_select_texts), 165 ak4458_ats_select_texts); 166 static const struct soc_enum ak4458_dif_enum = 167 SOC_ENUM_SINGLE(AK4458_00_CONTROL1, 3, 168 ARRAY_SIZE(ak4458_dif_select_texts), 169 ak4458_dif_select_texts); 170 171 static int get_digfil(struct snd_kcontrol *kcontrol, 172 struct snd_ctl_elem_value *ucontrol) 173 { 174 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 175 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 176 177 ucontrol->value.enumerated.item[0] = ak4458->digfil; 178 179 return 0; 180 } 181 182 static int set_digfil(struct snd_kcontrol *kcontrol, 183 struct snd_ctl_elem_value *ucontrol) 184 { 185 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 186 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 187 int num; 188 189 num = ucontrol->value.enumerated.item[0]; 190 if (num > 4) 191 return -EINVAL; 192 193 ak4458->digfil = num; 194 195 /* write SD bit */ 196 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 197 AK4458_SD_MASK, 198 ((ak4458->digfil & 0x02) << 4)); 199 200 /* write SLOW bit */ 201 snd_soc_component_update_bits(component, AK4458_02_CONTROL3, 202 AK4458_SLOW_MASK, 203 (ak4458->digfil & 0x01)); 204 205 /* write SSLOW bit */ 206 snd_soc_component_update_bits(component, AK4458_05_CONTROL4, 207 AK4458_SSLOW_MASK, 208 ((ak4458->digfil & 0x04) >> 2)); 209 210 return 0; 211 } 212 213 static const struct snd_kcontrol_new ak4458_snd_controls[] = { 214 SOC_DOUBLE_R_TLV("DAC1 Playback Volume", AK4458_03_LCHATT, 215 AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv), 216 SOC_DOUBLE_R_TLV("DAC2 Playback Volume", AK4458_0F_L2CHATT, 217 AK4458_10_R2CHATT, 0, 0xFF, 0, dac_tlv), 218 SOC_DOUBLE_R_TLV("DAC3 Playback Volume", AK4458_11_L3CHATT, 219 AK4458_12_R3CHATT, 0, 0xFF, 0, dac_tlv), 220 SOC_DOUBLE_R_TLV("DAC4 Playback Volume", AK4458_13_L4CHATT, 221 AK4458_14_R4CHATT, 0, 0xFF, 0, dac_tlv), 222 SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum), 223 SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum), 224 SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum), 225 SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum), 226 SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum, 227 get_digfil, set_digfil), 228 SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum), 229 SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum), 230 SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum), 231 SOC_ENUM("AK4458 Attenuation transition Time Setting", 232 ak4458_ats_enum), 233 SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum), 234 }; 235 236 /* ak4458 dapm widgets */ 237 static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = { 238 SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/ 239 SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0), 240 SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"), 241 242 SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/ 243 SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"), 244 245 SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/ 246 SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"), 247 248 SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/ 249 SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"), 250 }; 251 252 static const struct snd_soc_dapm_route ak4458_intercon[] = { 253 {"AK4458 DAC1", NULL, "AK4458 SDTI"}, 254 {"AK4458 AOUTA", NULL, "AK4458 DAC1"}, 255 256 {"AK4458 DAC2", NULL, "AK4458 SDTI"}, 257 {"AK4458 AOUTB", NULL, "AK4458 DAC2"}, 258 259 {"AK4458 DAC3", NULL, "AK4458 SDTI"}, 260 {"AK4458 AOUTC", NULL, "AK4458 DAC3"}, 261 262 {"AK4458 DAC4", NULL, "AK4458 SDTI"}, 263 {"AK4458 AOUTD", NULL, "AK4458 DAC4"}, 264 }; 265 266 /* ak4497 controls */ 267 static const struct snd_kcontrol_new ak4497_snd_controls[] = { 268 SOC_DOUBLE_R_TLV("DAC Playback Volume", AK4458_03_LCHATT, 269 AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv), 270 SOC_ENUM("AK4497 De-emphasis Response DAC", ak4458_dac1_dem_enum), 271 SOC_ENUM_EXT("AK4497 Digital Filter Setting", ak4458_digfil_enum, 272 get_digfil, set_digfil), 273 SOC_ENUM("AK4497 Inverting Enable of DZFB", ak4458_dzfb_enum), 274 SOC_ENUM("AK4497 Sound Mode", ak4458_sm_enum), 275 SOC_ENUM("AK4497 Attenuation transition Time Setting", 276 ak4458_ats_enum), 277 }; 278 279 /* ak4497 dapm widgets */ 280 static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = { 281 SND_SOC_DAPM_DAC("AK4497 DAC", NULL, AK4458_0A_CONTROL6, 2, 0), 282 SND_SOC_DAPM_AIF_IN("AK4497 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0), 283 SND_SOC_DAPM_OUTPUT("AK4497 AOUT"), 284 }; 285 286 /* ak4497 dapm routes */ 287 static const struct snd_soc_dapm_route ak4497_intercon[] = { 288 {"AK4497 DAC", NULL, "AK4497 SDTI"}, 289 {"AK4497 AOUT", NULL, "AK4497 DAC"}, 290 291 }; 292 293 static int ak4458_rstn_control(struct snd_soc_component *component, int bit) 294 { 295 int ret; 296 297 if (bit) 298 ret = snd_soc_component_update_bits(component, 299 AK4458_00_CONTROL1, 300 AK4458_RSTN_MASK, 301 0x1); 302 else 303 ret = snd_soc_component_update_bits(component, 304 AK4458_00_CONTROL1, 305 AK4458_RSTN_MASK, 306 0x0); 307 if (ret < 0) 308 return ret; 309 310 return 0; 311 } 312 313 static int ak4458_hw_params(struct snd_pcm_substream *substream, 314 struct snd_pcm_hw_params *params, 315 struct snd_soc_dai *dai) 316 { 317 struct snd_soc_component *component = dai->component; 318 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 319 int pcm_width = max(params_physical_width(params), ak4458->slot_width); 320 int nfs1; 321 u8 format; 322 323 nfs1 = params_rate(params); 324 ak4458->fs = nfs1; 325 326 /* Master Clock Frequency Auto Setting Mode Enable */ 327 snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80); 328 329 switch (pcm_width) { 330 case 16: 331 if (ak4458->fmt == SND_SOC_DAIFMT_I2S) 332 format = AK4458_DIF_24BIT_I2S; 333 else 334 format = AK4458_DIF_16BIT_LSB; 335 break; 336 case 32: 337 switch (ak4458->fmt) { 338 case SND_SOC_DAIFMT_I2S: 339 format = AK4458_DIF_32BIT_I2S; 340 break; 341 case SND_SOC_DAIFMT_LEFT_J: 342 format = AK4458_DIF_32BIT_MSB; 343 break; 344 case SND_SOC_DAIFMT_RIGHT_J: 345 format = AK4458_DIF_32BIT_LSB; 346 break; 347 case SND_SOC_DAIFMT_DSP_B: 348 format = AK4458_DIF_32BIT_MSB; 349 break; 350 default: 351 return -EINVAL; 352 } 353 break; 354 default: 355 return -EINVAL; 356 } 357 358 snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 359 AK4458_DIF_MASK, format); 360 361 ak4458_rstn_control(component, 0); 362 ak4458_rstn_control(component, 1); 363 364 return 0; 365 } 366 367 static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 368 { 369 struct snd_soc_component *component = dai->component; 370 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 371 372 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 373 case SND_SOC_DAIFMT_CBS_CFS: /* Slave Mode */ 374 break; 375 case SND_SOC_DAIFMT_CBM_CFM: /* Master Mode is not supported */ 376 case SND_SOC_DAIFMT_CBS_CFM: 377 case SND_SOC_DAIFMT_CBM_CFS: 378 default: 379 dev_err(component->dev, "Master mode unsupported\n"); 380 return -EINVAL; 381 } 382 383 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 384 case SND_SOC_DAIFMT_I2S: 385 case SND_SOC_DAIFMT_LEFT_J: 386 case SND_SOC_DAIFMT_RIGHT_J: 387 case SND_SOC_DAIFMT_DSP_B: 388 ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; 389 break; 390 default: 391 dev_err(component->dev, "Audio format 0x%02X unsupported\n", 392 fmt & SND_SOC_DAIFMT_FORMAT_MASK); 393 return -EINVAL; 394 } 395 396 ak4458_rstn_control(component, 0); 397 ak4458_rstn_control(component, 1); 398 399 return 0; 400 } 401 402 static const int att_speed[] = { 4080, 2040, 510, 255 }; 403 404 static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction) 405 { 406 struct snd_soc_component *component = dai->component; 407 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 408 int nfs, ndt, reg; 409 int ats; 410 411 nfs = ak4458->fs; 412 413 reg = snd_soc_component_read(component, AK4458_0B_CONTROL7); 414 ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT; 415 416 ndt = att_speed[ats] / (nfs / 1000); 417 418 if (mute) { 419 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1); 420 mdelay(ndt); 421 if (ak4458->mute_gpiod) 422 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); 423 } else { 424 if (ak4458->mute_gpiod) 425 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); 426 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0); 427 mdelay(ndt); 428 } 429 430 return 0; 431 } 432 433 static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, 434 unsigned int rx_mask, int slots, int slot_width) 435 { 436 struct snd_soc_component *component = dai->component; 437 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 438 int mode; 439 440 ak4458->slots = slots; 441 ak4458->slot_width = slot_width; 442 443 switch (slots * slot_width) { 444 case 128: 445 mode = AK4458_MODE_TDM128; 446 break; 447 case 256: 448 mode = AK4458_MODE_TDM256; 449 break; 450 case 512: 451 mode = AK4458_MODE_TDM512; 452 break; 453 default: 454 mode = AK4458_MODE_NORMAL; 455 break; 456 } 457 458 snd_soc_component_update_bits(component, AK4458_0A_CONTROL6, 459 AK4458_MODE_MASK, 460 mode); 461 462 return 0; 463 } 464 465 #define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 466 SNDRV_PCM_FMTBIT_S24_LE |\ 467 SNDRV_PCM_FMTBIT_S32_LE) 468 469 static const unsigned int ak4458_rates[] = { 470 8000, 11025, 16000, 22050, 471 32000, 44100, 48000, 88200, 472 96000, 176400, 192000, 352800, 473 384000, 705600, 768000, 1411200, 474 2822400, 475 }; 476 477 static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = { 478 .count = ARRAY_SIZE(ak4458_rates), 479 .list = ak4458_rates, 480 }; 481 482 static int ak4458_startup(struct snd_pcm_substream *substream, 483 struct snd_soc_dai *dai) 484 { 485 int ret; 486 487 ret = snd_pcm_hw_constraint_list(substream->runtime, 0, 488 SNDRV_PCM_HW_PARAM_RATE, 489 &ak4458_rate_constraints); 490 491 return ret; 492 } 493 494 static const struct snd_soc_dai_ops ak4458_dai_ops = { 495 .startup = ak4458_startup, 496 .hw_params = ak4458_hw_params, 497 .set_fmt = ak4458_set_dai_fmt, 498 .mute_stream = ak4458_set_dai_mute, 499 .set_tdm_slot = ak4458_set_tdm_slot, 500 .no_capture_mute = 1, 501 }; 502 503 static struct snd_soc_dai_driver ak4458_dai = { 504 .name = "ak4458-aif", 505 .playback = { 506 .stream_name = "Playback", 507 .channels_min = 1, 508 .channels_max = 8, 509 .rates = SNDRV_PCM_RATE_KNOT, 510 .formats = AK4458_FORMATS, 511 }, 512 .ops = &ak4458_dai_ops, 513 }; 514 515 static struct snd_soc_dai_driver ak4497_dai = { 516 .name = "ak4497-aif", 517 .playback = { 518 .stream_name = "Playback", 519 .channels_min = 1, 520 .channels_max = 2, 521 .rates = SNDRV_PCM_RATE_KNOT, 522 .formats = AK4458_FORMATS, 523 }, 524 .ops = &ak4458_dai_ops, 525 }; 526 527 static void ak4458_power_off(struct ak4458_priv *ak4458) 528 { 529 if (ak4458->reset_gpiod) { 530 gpiod_set_value_cansleep(ak4458->reset_gpiod, 0); 531 usleep_range(1000, 2000); 532 } 533 } 534 535 static void ak4458_power_on(struct ak4458_priv *ak4458) 536 { 537 if (ak4458->reset_gpiod) { 538 gpiod_set_value_cansleep(ak4458->reset_gpiod, 1); 539 usleep_range(1000, 2000); 540 } 541 } 542 543 static int ak4458_init(struct snd_soc_component *component) 544 { 545 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 546 int ret; 547 548 /* External Mute ON */ 549 if (ak4458->mute_gpiod) 550 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); 551 552 ak4458_power_on(ak4458); 553 554 ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 555 0x80, 0x80); /* ACKS bit = 1; 10000000 */ 556 if (ret < 0) 557 return ret; 558 559 return ak4458_rstn_control(component, 1); 560 } 561 562 static int ak4458_probe(struct snd_soc_component *component) 563 { 564 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 565 566 ak4458->fs = 48000; 567 568 return ak4458_init(component); 569 } 570 571 static void ak4458_remove(struct snd_soc_component *component) 572 { 573 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); 574 575 ak4458_power_off(ak4458); 576 } 577 578 #ifdef CONFIG_PM 579 static int __maybe_unused ak4458_runtime_suspend(struct device *dev) 580 { 581 struct ak4458_priv *ak4458 = dev_get_drvdata(dev); 582 583 regcache_cache_only(ak4458->regmap, true); 584 585 ak4458_power_off(ak4458); 586 587 if (ak4458->mute_gpiod) 588 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); 589 590 return 0; 591 } 592 593 static int __maybe_unused ak4458_runtime_resume(struct device *dev) 594 { 595 struct ak4458_priv *ak4458 = dev_get_drvdata(dev); 596 597 if (ak4458->mute_gpiod) 598 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); 599 600 ak4458_power_off(ak4458); 601 ak4458_power_on(ak4458); 602 603 regcache_cache_only(ak4458->regmap, false); 604 regcache_mark_dirty(ak4458->regmap); 605 606 return regcache_sync(ak4458->regmap); 607 } 608 #endif /* CONFIG_PM */ 609 610 static const struct snd_soc_component_driver soc_codec_dev_ak4458 = { 611 .probe = ak4458_probe, 612 .remove = ak4458_remove, 613 .controls = ak4458_snd_controls, 614 .num_controls = ARRAY_SIZE(ak4458_snd_controls), 615 .dapm_widgets = ak4458_dapm_widgets, 616 .num_dapm_widgets = ARRAY_SIZE(ak4458_dapm_widgets), 617 .dapm_routes = ak4458_intercon, 618 .num_dapm_routes = ARRAY_SIZE(ak4458_intercon), 619 .idle_bias_on = 1, 620 .use_pmdown_time = 1, 621 .endianness = 1, 622 .non_legacy_dai_naming = 1, 623 }; 624 625 static const struct snd_soc_component_driver soc_codec_dev_ak4497 = { 626 .probe = ak4458_probe, 627 .remove = ak4458_remove, 628 .controls = ak4497_snd_controls, 629 .num_controls = ARRAY_SIZE(ak4497_snd_controls), 630 .dapm_widgets = ak4497_dapm_widgets, 631 .num_dapm_widgets = ARRAY_SIZE(ak4497_dapm_widgets), 632 .dapm_routes = ak4497_intercon, 633 .num_dapm_routes = ARRAY_SIZE(ak4497_intercon), 634 .idle_bias_on = 1, 635 .use_pmdown_time = 1, 636 .endianness = 1, 637 .non_legacy_dai_naming = 1, 638 }; 639 640 static const struct regmap_config ak4458_regmap = { 641 .reg_bits = 8, 642 .val_bits = 8, 643 644 .max_register = AK4458_14_R4CHATT, 645 .reg_defaults = ak4458_reg_defaults, 646 .num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults), 647 .cache_type = REGCACHE_RBTREE, 648 }; 649 650 static const struct ak4458_drvdata ak4458_drvdata = { 651 .dai_drv = &ak4458_dai, 652 .comp_drv = &soc_codec_dev_ak4458, 653 }; 654 655 static const struct ak4458_drvdata ak4497_drvdata = { 656 .dai_drv = &ak4497_dai, 657 .comp_drv = &soc_codec_dev_ak4497, 658 }; 659 660 static const struct dev_pm_ops ak4458_pm = { 661 SET_RUNTIME_PM_OPS(ak4458_runtime_suspend, ak4458_runtime_resume, NULL) 662 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 663 pm_runtime_force_resume) 664 }; 665 666 static int ak4458_i2c_probe(struct i2c_client *i2c) 667 { 668 struct ak4458_priv *ak4458; 669 const struct ak4458_drvdata *drvdata; 670 int ret; 671 672 ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); 673 if (!ak4458) 674 return -ENOMEM; 675 676 ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap); 677 if (IS_ERR(ak4458->regmap)) 678 return PTR_ERR(ak4458->regmap); 679 680 i2c_set_clientdata(i2c, ak4458); 681 ak4458->dev = &i2c->dev; 682 683 drvdata = of_device_get_match_data(&i2c->dev); 684 685 ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset", 686 GPIOD_OUT_LOW); 687 if (IS_ERR(ak4458->reset_gpiod)) 688 return PTR_ERR(ak4458->reset_gpiod); 689 690 ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute", 691 GPIOD_OUT_LOW); 692 if (IS_ERR(ak4458->mute_gpiod)) 693 return PTR_ERR(ak4458->mute_gpiod); 694 695 ret = devm_snd_soc_register_component(ak4458->dev, drvdata->comp_drv, 696 drvdata->dai_drv, 1); 697 if (ret < 0) { 698 dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret); 699 return ret; 700 } 701 702 pm_runtime_enable(&i2c->dev); 703 704 return 0; 705 } 706 707 static int ak4458_i2c_remove(struct i2c_client *i2c) 708 { 709 pm_runtime_disable(&i2c->dev); 710 711 return 0; 712 } 713 714 static const struct of_device_id ak4458_of_match[] = { 715 { .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata}, 716 { .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata}, 717 { }, 718 }; 719 720 static struct i2c_driver ak4458_i2c_driver = { 721 .driver = { 722 .name = "ak4458", 723 .pm = &ak4458_pm, 724 .of_match_table = ak4458_of_match, 725 }, 726 .probe_new = ak4458_i2c_probe, 727 .remove = ak4458_i2c_remove, 728 }; 729 730 module_i2c_driver(ak4458_i2c_driver); 731 732 MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>"); 733 MODULE_AUTHOR("Mihai Serban <mihai.serban@nxp.com>"); 734 MODULE_DESCRIPTION("ASoC AK4458 DAC driver"); 735 MODULE_LICENSE("GPL v2"); 736