1// SPDX-License-Identifier: GPL-2.0 2// 3// Driver for the Texas Instruments TAS2562 CODEC 4// Copyright (C) 2019 Texas Instruments Inc. 5 6 7#include <linux/module.h> 8#include <linux/errno.h> 9#include <linux/device.h> 10#include <linux/i2c.h> 11#include <linux/regmap.h> 12#include <linux/slab.h> 13#include <linux/gpio/consumer.h> 14#include <linux/regulator/consumer.h> 15#include <linux/delay.h> 16 17#include <sound/pcm.h> 18#include <sound/pcm_params.h> 19#include <sound/soc.h> 20#include <sound/soc-dapm.h> 21#include <sound/tlv.h> 22 23#include "tas2562.h" 24 25#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\ 26 SNDRV_PCM_FORMAT_S32_LE) 27 28/* DVC equation involves floating point math 29 * round(10^(volume in dB/20)*2^30) 30 * so create a lookup table for 2dB step 31 */ 32static const unsigned int float_vol_db_lookup[] = { 330x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151, 340x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b, 350x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a, 360x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f, 370x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7, 380x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d, 390x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a, 400x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27, 410x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68, 420x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362, 430x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000 44}; 45 46struct tas2562_data { 47 struct snd_soc_component *component; 48 struct gpio_desc *sdz_gpio; 49 struct regmap *regmap; 50 struct device *dev; 51 struct i2c_client *client; 52 int v_sense_slot; 53 int i_sense_slot; 54 int volume_lvl; 55 int model_id; 56 bool dac_powered; 57 bool unmuted; 58}; 59 60enum tas256x_model { 61 TAS2562, 62 TAS2564, 63 TAS2110, 64}; 65 66static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate) 67{ 68 int samp_rate; 69 int ramp_rate; 70 71 switch (samplerate) { 72 case 7350: 73 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 74 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; 75 break; 76 case 8000: 77 ramp_rate = 0; 78 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; 79 break; 80 case 14700: 81 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 82 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; 83 break; 84 case 16000: 85 ramp_rate = 0; 86 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; 87 break; 88 case 22050: 89 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 90 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; 91 break; 92 case 24000: 93 ramp_rate = 0; 94 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; 95 break; 96 case 29400: 97 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 98 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; 99 break; 100 case 32000: 101 ramp_rate = 0; 102 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; 103 break; 104 case 44100: 105 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 106 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; 107 break; 108 case 48000: 109 ramp_rate = 0; 110 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; 111 break; 112 case 88200: 113 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 114 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; 115 break; 116 case 96000: 117 ramp_rate = 0; 118 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; 119 break; 120 case 176400: 121 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 122 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; 123 break; 124 case 192000: 125 ramp_rate = 0; 126 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; 127 break; 128 default: 129 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n", 130 __func__, samplerate); 131 return -EINVAL; 132 } 133 134 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, 135 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate); 136 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, 137 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate); 138 139 return 0; 140} 141 142static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai, 143 unsigned int tx_mask, unsigned int rx_mask, 144 int slots, int slot_width) 145{ 146 struct snd_soc_component *component = dai->component; 147 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 148 int left_slot, right_slot; 149 int slots_cfg; 150 int ret; 151 152 if (!tx_mask) { 153 dev_err(component->dev, "tx masks must not be 0\n"); 154 return -EINVAL; 155 } 156 157 if (slots == 1) { 158 if (tx_mask != 1) 159 return -EINVAL; 160 161 left_slot = 0; 162 right_slot = 0; 163 } else { 164 left_slot = __ffs(tx_mask); 165 tx_mask &= ~(1 << left_slot); 166 if (tx_mask == 0) { 167 right_slot = left_slot; 168 } else { 169 right_slot = __ffs(tx_mask); 170 } 171 } 172 173 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot; 174 175 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg); 176 if (ret < 0) 177 return ret; 178 179 switch (slot_width) { 180 case 16: 181 ret = snd_soc_component_update_bits(component, 182 TAS2562_TDM_CFG2, 183 TAS2562_TDM_CFG2_RXLEN_MASK, 184 TAS2562_TDM_CFG2_RXLEN_16B); 185 break; 186 case 24: 187 ret = snd_soc_component_update_bits(component, 188 TAS2562_TDM_CFG2, 189 TAS2562_TDM_CFG2_RXLEN_MASK, 190 TAS2562_TDM_CFG2_RXLEN_24B); 191 break; 192 case 32: 193 ret = snd_soc_component_update_bits(component, 194 TAS2562_TDM_CFG2, 195 TAS2562_TDM_CFG2_RXLEN_MASK, 196 TAS2562_TDM_CFG2_RXLEN_32B); 197 break; 198 199 case 0: 200 /* Do not change slot width */ 201 break; 202 default: 203 dev_err(tas2562->dev, "slot width not supported"); 204 ret = -EINVAL; 205 } 206 207 if (ret < 0) 208 return ret; 209 210 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5, 211 TAS2562_TDM_CFG5_VSNS_SLOT_MASK, 212 tas2562->v_sense_slot); 213 if (ret < 0) 214 return ret; 215 216 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6, 217 TAS2562_TDM_CFG6_ISNS_SLOT_MASK, 218 tas2562->i_sense_slot); 219 if (ret < 0) 220 return ret; 221 222 return 0; 223} 224 225static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth) 226{ 227 int ret; 228 int val; 229 int sense_en; 230 231 switch (bitwidth) { 232 case SNDRV_PCM_FORMAT_S16_LE: 233 snd_soc_component_update_bits(tas2562->component, 234 TAS2562_TDM_CFG2, 235 TAS2562_TDM_CFG2_RXWLEN_MASK, 236 TAS2562_TDM_CFG2_RXWLEN_16B); 237 break; 238 case SNDRV_PCM_FORMAT_S24_LE: 239 snd_soc_component_update_bits(tas2562->component, 240 TAS2562_TDM_CFG2, 241 TAS2562_TDM_CFG2_RXWLEN_MASK, 242 TAS2562_TDM_CFG2_RXWLEN_24B); 243 break; 244 case SNDRV_PCM_FORMAT_S32_LE: 245 snd_soc_component_update_bits(tas2562->component, 246 TAS2562_TDM_CFG2, 247 TAS2562_TDM_CFG2_RXWLEN_MASK, 248 TAS2562_TDM_CFG2_RXWLEN_32B); 249 break; 250 251 default: 252 dev_info(tas2562->dev, "Unsupported bitwidth format\n"); 253 return -EINVAL; 254 } 255 256 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL); 257 if (val < 0) 258 return val; 259 260 if (val & (1 << TAS2562_VSENSE_POWER_EN)) 261 sense_en = 0; 262 else 263 sense_en = TAS2562_TDM_CFG5_VSNS_EN; 264 265 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5, 266 TAS2562_TDM_CFG5_VSNS_EN, sense_en); 267 if (ret < 0) 268 return ret; 269 270 if (val & (1 << TAS2562_ISENSE_POWER_EN)) 271 sense_en = 0; 272 else 273 sense_en = TAS2562_TDM_CFG6_ISNS_EN; 274 275 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6, 276 TAS2562_TDM_CFG6_ISNS_EN, sense_en); 277 if (ret < 0) 278 return ret; 279 280 return 0; 281} 282 283static int tas2562_hw_params(struct snd_pcm_substream *substream, 284 struct snd_pcm_hw_params *params, 285 struct snd_soc_dai *dai) 286{ 287 struct snd_soc_component *component = dai->component; 288 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 289 int ret; 290 291 ret = tas2562_set_bitwidth(tas2562, params_format(params)); 292 if (ret) { 293 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret); 294 return ret; 295 } 296 297 ret = tas2562_set_samplerate(tas2562, params_rate(params)); 298 if (ret) 299 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret); 300 301 return ret; 302} 303 304static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 305{ 306 struct snd_soc_component *component = dai->component; 307 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 308 u8 asi_cfg_1 = 0; 309 u8 tdm_rx_start_slot = 0; 310 int ret; 311 312 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 313 case SND_SOC_DAIFMT_NB_NF: 314 asi_cfg_1 = 0; 315 break; 316 case SND_SOC_DAIFMT_IB_NF: 317 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING; 318 break; 319 default: 320 dev_err(tas2562->dev, "ASI format Inverse is not found\n"); 321 return -EINVAL; 322 } 323 324 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, 325 TAS2562_TDM_CFG1_RX_EDGE_MASK, 326 asi_cfg_1); 327 if (ret < 0) { 328 dev_err(tas2562->dev, "Failed to set RX edge\n"); 329 return ret; 330 } 331 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 332 case SND_SOC_DAIFMT_LEFT_J: 333 case SND_SOC_DAIFMT_DSP_B: 334 tdm_rx_start_slot = 0; 335 break; 336 case SND_SOC_DAIFMT_I2S: 337 case SND_SOC_DAIFMT_DSP_A: 338 tdm_rx_start_slot = 1; 339 break; 340 default: 341 dev_err(tas2562->dev, 342 "DAI Format is not found, fmt=0x%x\n", fmt); 343 return -EINVAL; 344 } 345 346 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, 347 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1)); 348 if (ret < 0) 349 return ret; 350 351 return 0; 352} 353 354static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562) 355{ 356 struct snd_soc_component *component = tas2562->component; 357 unsigned int val; 358 int ret; 359 360 if (tas2562->dac_powered) 361 val = tas2562->unmuted ? 362 TAS2562_ACTIVE : TAS2562_MUTE; 363 else 364 val = TAS2562_SHUTDOWN; 365 366 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL, 367 TAS2562_MODE_MASK, val); 368 if (ret < 0) 369 return ret; 370 371 return 0; 372} 373 374static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction) 375{ 376 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component); 377 378 tas2562->unmuted = !mute; 379 return tas2562_update_pwr_ctrl(tas2562); 380} 381 382static int tas2562_codec_probe(struct snd_soc_component *component) 383{ 384 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 385 386 tas2562->component = component; 387 388 if (tas2562->sdz_gpio) 389 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); 390 391 return 0; 392} 393 394#ifdef CONFIG_PM 395static int tas2562_suspend(struct snd_soc_component *component) 396{ 397 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 398 399 regcache_cache_only(tas2562->regmap, true); 400 regcache_mark_dirty(tas2562->regmap); 401 402 if (tas2562->sdz_gpio) 403 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0); 404 405 return 0; 406} 407 408static int tas2562_resume(struct snd_soc_component *component) 409{ 410 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 411 412 if (tas2562->sdz_gpio) 413 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); 414 415 regcache_cache_only(tas2562->regmap, false); 416 417 return regcache_sync(tas2562->regmap); 418} 419#else 420#define tas2562_suspend NULL 421#define tas2562_resume NULL 422#endif 423 424static const char * const tas2562_ASI1_src[] = { 425 "I2C offset", "Left", "Right", "LeftRightDiv2", 426}; 427 428static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4, 429 tas2562_ASI1_src); 430 431static const struct snd_kcontrol_new tas2562_asi1_mux = 432 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum); 433 434static int tas2562_dac_event(struct snd_soc_dapm_widget *w, 435 struct snd_kcontrol *kcontrol, int event) 436{ 437 struct snd_soc_component *component = 438 snd_soc_dapm_to_component(w->dapm); 439 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 440 int ret = 0; 441 442 switch (event) { 443 case SND_SOC_DAPM_POST_PMU: 444 tas2562->dac_powered = true; 445 ret = tas2562_update_pwr_ctrl(tas2562); 446 break; 447 case SND_SOC_DAPM_PRE_PMD: 448 tas2562->dac_powered = false; 449 ret = tas2562_update_pwr_ctrl(tas2562); 450 break; 451 default: 452 dev_err(tas2562->dev, "Not supported evevt\n"); 453 return -EINVAL; 454 } 455 456 return ret; 457} 458 459static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol, 460 struct snd_ctl_elem_value *ucontrol) 461{ 462 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 463 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 464 465 ucontrol->value.integer.value[0] = tas2562->volume_lvl; 466 return 0; 467} 468 469static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol, 470 struct snd_ctl_elem_value *ucontrol) 471{ 472 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 473 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 474 int ret; 475 u32 reg_val; 476 477 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2]; 478 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, 479 (reg_val & 0xff)); 480 if (ret) 481 return ret; 482 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, 483 ((reg_val >> 8) & 0xff)); 484 if (ret) 485 return ret; 486 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2, 487 ((reg_val >> 16) & 0xff)); 488 if (ret) 489 return ret; 490 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, 491 ((reg_val >> 24) & 0xff)); 492 if (ret) 493 return ret; 494 495 tas2562->volume_lvl = ucontrol->value.integer.value[0]; 496 497 return 0; 498} 499 500/* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */ 501static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0); 502 503static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0); 504 505static const struct snd_kcontrol_new isense_switch = 506 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN, 507 1, 1); 508 509static const struct snd_kcontrol_new vsense_switch = 510 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN, 511 1, 1); 512 513static const struct snd_kcontrol_new tas2562_snd_controls[] = { 514 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0, 515 tas2562_dac_tlv), 516 { 517 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 518 .name = "Digital Volume Control", 519 .index = 0, 520 .tlv.p = dvc_tlv, 521 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE, 522 .info = snd_soc_info_volsw, 523 .get = tas2562_volume_control_get, 524 .put = tas2562_volume_control_put, 525 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0), 526 }, 527}; 528 529static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = { 530 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), 531 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), 532 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, 533 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 534 SND_SOC_DAPM_OUTPUT("OUT"), 535}; 536 537static const struct snd_soc_dapm_route tas2110_audio_map[] = { 538 {"ASI1 Sel", "I2C offset", "ASI1"}, 539 {"ASI1 Sel", "Left", "ASI1"}, 540 {"ASI1 Sel", "Right", "ASI1"}, 541 {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, 542 { "DAC", NULL, "ASI1 Sel" }, 543 { "OUT", NULL, "DAC" }, 544}; 545 546static const struct snd_soc_component_driver soc_component_dev_tas2110 = { 547 .probe = tas2562_codec_probe, 548 .suspend = tas2562_suspend, 549 .resume = tas2562_resume, 550 .controls = tas2562_snd_controls, 551 .num_controls = ARRAY_SIZE(tas2562_snd_controls), 552 .dapm_widgets = tas2110_dapm_widgets, 553 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets), 554 .dapm_routes = tas2110_audio_map, 555 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map), 556 .idle_bias_on = 1, 557 .use_pmdown_time = 1, 558 .endianness = 1, 559}; 560 561static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = { 562 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), 563 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), 564 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, 565 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 566 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch), 567 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch), 568 SND_SOC_DAPM_SIGGEN("VMON"), 569 SND_SOC_DAPM_SIGGEN("IMON"), 570 SND_SOC_DAPM_OUTPUT("OUT"), 571}; 572 573static const struct snd_soc_dapm_route tas2562_audio_map[] = { 574 {"ASI1 Sel", "I2C offset", "ASI1"}, 575 {"ASI1 Sel", "Left", "ASI1"}, 576 {"ASI1 Sel", "Right", "ASI1"}, 577 {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, 578 { "DAC", NULL, "ASI1 Sel" }, 579 { "OUT", NULL, "DAC" }, 580 {"ISENSE", "Switch", "IMON"}, 581 {"VSENSE", "Switch", "VMON"}, 582}; 583 584static const struct snd_soc_component_driver soc_component_dev_tas2562 = { 585 .probe = tas2562_codec_probe, 586 .suspend = tas2562_suspend, 587 .resume = tas2562_resume, 588 .controls = tas2562_snd_controls, 589 .num_controls = ARRAY_SIZE(tas2562_snd_controls), 590 .dapm_widgets = tas2562_dapm_widgets, 591 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets), 592 .dapm_routes = tas2562_audio_map, 593 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map), 594 .idle_bias_on = 1, 595 .use_pmdown_time = 1, 596 .endianness = 1, 597}; 598 599static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = { 600 .hw_params = tas2562_hw_params, 601 .set_fmt = tas2562_set_dai_fmt, 602 .set_tdm_slot = tas2562_set_dai_tdm_slot, 603 .mute_stream = tas2562_mute, 604 .no_capture_mute = 1, 605}; 606 607static struct snd_soc_dai_driver tas2562_dai[] = { 608 { 609 .name = "tas2562-amplifier", 610 .id = 0, 611 .playback = { 612 .stream_name = "ASI1 Playback", 613 .channels_min = 2, 614 .channels_max = 2, 615 .rates = SNDRV_PCM_RATE_8000_192000, 616 .formats = TAS2562_FORMATS, 617 }, 618 .capture = { 619 .stream_name = "ASI1 Capture", 620 .channels_min = 0, 621 .channels_max = 2, 622 .rates = SNDRV_PCM_RATE_8000_192000, 623 .formats = TAS2562_FORMATS, 624 }, 625 .ops = &tas2562_speaker_dai_ops, 626 }, 627}; 628 629static const struct regmap_range_cfg tas2562_ranges[] = { 630 { 631 .range_min = 0, 632 .range_max = 5 * 128, 633 .selector_reg = TAS2562_PAGE_CTRL, 634 .selector_mask = 0xff, 635 .selector_shift = 0, 636 .window_start = 0, 637 .window_len = 128, 638 }, 639}; 640 641static const struct reg_default tas2562_reg_defaults[] = { 642 { TAS2562_PAGE_CTRL, 0x00 }, 643 { TAS2562_SW_RESET, 0x00 }, 644 { TAS2562_PWR_CTRL, 0x0e }, 645 { TAS2562_PB_CFG1, 0x20 }, 646 { TAS2562_TDM_CFG0, 0x09 }, 647 { TAS2562_TDM_CFG1, 0x02 }, 648 { TAS2562_DVC_CFG1, 0x40 }, 649 { TAS2562_DVC_CFG2, 0x40 }, 650 { TAS2562_DVC_CFG3, 0x00 }, 651 { TAS2562_DVC_CFG4, 0x00 }, 652}; 653 654static const struct regmap_config tas2562_regmap_config = { 655 .reg_bits = 8, 656 .val_bits = 8, 657 658 .max_register = 5 * 128, 659 .cache_type = REGCACHE_RBTREE, 660 .reg_defaults = tas2562_reg_defaults, 661 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults), 662 .ranges = tas2562_ranges, 663 .num_ranges = ARRAY_SIZE(tas2562_ranges), 664}; 665 666static int tas2562_parse_dt(struct tas2562_data *tas2562) 667{ 668 struct device *dev = tas2562->dev; 669 int ret = 0; 670 671 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); 672 if (IS_ERR(tas2562->sdz_gpio)) { 673 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) 674 return -EPROBE_DEFER; 675 676 tas2562->sdz_gpio = NULL; 677 } 678 679 /* 680 * The shut-down property is deprecated but needs to be checked for 681 * backwards compatibility. 682 */ 683 if (tas2562->sdz_gpio == NULL) { 684 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down", 685 GPIOD_OUT_HIGH); 686 if (IS_ERR(tas2562->sdz_gpio)) 687 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) 688 return -EPROBE_DEFER; 689 690 tas2562->sdz_gpio = NULL; 691 } 692 693 if (tas2562->model_id == TAS2110) 694 return ret; 695 696 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no", 697 &tas2562->i_sense_slot); 698 if (ret) { 699 dev_err(dev, "Property %s is missing setting default slot\n", 700 "ti,imon-slot-no"); 701 tas2562->i_sense_slot = 0; 702 } 703 704 705 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no", 706 &tas2562->v_sense_slot); 707 if (ret) { 708 dev_info(dev, "Property %s is missing setting default slot\n", 709 "ti,vmon-slot-no"); 710 tas2562->v_sense_slot = 2; 711 } 712 713 if (tas2562->v_sense_slot < tas2562->i_sense_slot) { 714 dev_err(dev, "Vsense slot must be greater than Isense slot\n"); 715 return -EINVAL; 716 } 717 718 return ret; 719} 720 721static const struct i2c_device_id tas2562_id[] = { 722 { "tas2562", TAS2562 }, 723 { "tas2564", TAS2564 }, 724 { "tas2110", TAS2110 }, 725 { } 726}; 727MODULE_DEVICE_TABLE(i2c, tas2562_id); 728 729static int tas2562_probe(struct i2c_client *client) 730{ 731 struct device *dev = &client->dev; 732 struct tas2562_data *data; 733 int ret; 734 const struct i2c_device_id *id; 735 736 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 737 if (!data) 738 return -ENOMEM; 739 740 id = i2c_match_id(tas2562_id, client); 741 data->client = client; 742 data->dev = &client->dev; 743 data->model_id = id->driver_data; 744 745 tas2562_parse_dt(data); 746 747 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config); 748 if (IS_ERR(data->regmap)) { 749 ret = PTR_ERR(data->regmap); 750 dev_err(dev, "failed to allocate register map: %d\n", ret); 751 return ret; 752 } 753 754 dev_set_drvdata(&client->dev, data); 755 756 if (data->model_id == TAS2110) 757 return devm_snd_soc_register_component(dev, 758 &soc_component_dev_tas2110, 759 tas2562_dai, 760 ARRAY_SIZE(tas2562_dai)); 761 762 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562, 763 tas2562_dai, 764 ARRAY_SIZE(tas2562_dai)); 765 766} 767 768#ifdef CONFIG_OF 769static const struct of_device_id tas2562_of_match[] = { 770 { .compatible = "ti,tas2562", }, 771 { .compatible = "ti,tas2564", }, 772 { .compatible = "ti,tas2110", }, 773 { }, 774}; 775MODULE_DEVICE_TABLE(of, tas2562_of_match); 776#endif 777 778static struct i2c_driver tas2562_i2c_driver = { 779 .driver = { 780 .name = "tas2562", 781 .of_match_table = of_match_ptr(tas2562_of_match), 782 }, 783 .probe = tas2562_probe, 784 .id_table = tas2562_id, 785}; 786 787module_i2c_driver(tas2562_i2c_driver); 788 789MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>"); 790MODULE_DESCRIPTION("TAS2562 Audio amplifier driver"); 791MODULE_LICENSE("GPL"); 792