sound/soc/codecs/tas571x.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * TAS571x amplifier audio driver
   4  *
   5  * Copyright (C) 2015 Google, Inc.
   6  * Copyright (c) 2013 Daniel Mack <zonque@gmail.com>
   7  *
   8  * TAS5721 support:
   9  * Copyright (C) 2016 Petr Kulhavy, Barix AG <petr@barix.com>
  10  *
  11  * TAS5707 support:
  12  * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <jbrunet@baylibre.com>
  13  */
  14
  15 #include <linux/clk.h>
  16 #include <linux/delay.h>
  17 #include <linux/device.h>
  18 #include <linux/gpio/consumer.h>
  19 #include <linux/i2c.h>
  20 #include <linux/init.h>
  21 #include <linux/kernel.h>
  22 #include <linux/module.h>
  23 #include <linux/of_device.h>
  24 #include <linux/regmap.h>
  25 #include <linux/regulator/consumer.h>
  26 #include <linux/stddef.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/soc.h>
  29 #include <sound/tlv.h>
  30 #include <asm/unaligned.h>
  31
  32 #include "tas571x.h"
  33
  34 #define TAS571X_MAX_SUPPLIES            6
  35
  36 struct tas571x_chip {
  37         const char                      *const *supply_names;
  38         int                             num_supply_names;
  39         const struct snd_kcontrol_new   *controls;
  40         int                             num_controls;
  41         const struct regmap_config      *regmap_config;
  42         int                             vol_reg_size;
  43 };
  44
  45 struct tas571x_private {
  46         const struct tas571x_chip       *chip;
  47         struct regmap                   *regmap;
  48         struct regulator_bulk_data      supplies[TAS571X_MAX_SUPPLIES];
  49         struct clk                      *mclk;
  50         unsigned int                    format;
  51         struct gpio_desc                *reset_gpio;
  52         struct gpio_desc                *pdn_gpio;
  53         struct snd_soc_component_driver component_driver;
  54 };
  55
  56 static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg)
  57 {
  58         switch (reg) {
  59         case TAS571X_MVOL_REG:
  60         case TAS571X_CH1_VOL_REG:
  61         case TAS571X_CH2_VOL_REG:
  62                 return priv->chip->vol_reg_size;
  63         case TAS571X_INPUT_MUX_REG:
  64         case TAS571X_CH4_SRC_SELECT_REG:
  65         case TAS571X_PWM_MUX_REG:
  66         case TAS5717_CH1_RIGHT_CH_MIX_REG:
  67         case TAS5717_CH1_LEFT_CH_MIX_REG:
  68         case TAS5717_CH2_LEFT_CH_MIX_REG:
  69         case TAS5717_CH2_RIGHT_CH_MIX_REG:
  70                 return 4;
  71         default:
  72                 return 1;
  73         }
  74 }
  75
  76 static int tas571x_reg_write(void *context, unsigned int reg,
  77                              unsigned int value)
  78 {
  79         struct i2c_client *client = context;
  80         struct tas571x_private *priv = i2c_get_clientdata(client);
  81         unsigned int i, size;
  82         uint8_t buf[5];
  83         int ret;
  84
  85         size = tas571x_register_size(priv, reg);
  86         buf[0] = reg;
  87
  88         for (i = size; i >= 1; --i) {
  89                 buf[i] = value;
  90                 value >>= 8;
  91         }
  92
  93         ret = i2c_master_send(client, buf, size + 1);
  94         if (ret == size + 1)
  95                 return 0;
  96         else if (ret < 0)
  97                 return ret;
  98         else
  99                 return -EIO;
 100 }
 101
 102 static int tas571x_reg_read(void *context, unsigned int reg,
 103                             unsigned int *value)
 104 {
 105         struct i2c_client *client = context;
 106         struct tas571x_private *priv = i2c_get_clientdata(client);
 107         uint8_t send_buf, recv_buf[4];
 108         struct i2c_msg msgs[2];
 109         unsigned int size;
 110         unsigned int i;
 111         int ret;
 112
 113         size = tas571x_register_size(priv, reg);
 114         send_buf = reg;
 115
 116         msgs[0].addr = client->addr;
 117         msgs[0].len = sizeof(send_buf);
 118         msgs[0].buf = &send_buf;
 119         msgs[0].flags = 0;
 120
 121         msgs[1].addr = client->addr;
 122         msgs[1].len = size;
 123         msgs[1].buf = recv_buf;
 124         msgs[1].flags = I2C_M_RD;
 125
 126         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
 127         if (ret < 0)
 128                 return ret;
 129         else if (ret != ARRAY_SIZE(msgs))
 130                 return -EIO;
 131
 132         *value = 0;
 133
 134         for (i = 0; i < size; i++) {
 135                 *value <<= 8;
 136                 *value |= recv_buf[i];
 137         }
 138
 139         return 0;
 140 }
 141
 142 /*
 143  * register write for 8- and 20-byte registers
 144  */
 145 static int tas571x_reg_write_multiword(struct i2c_client *client,
 146                 unsigned int reg, const long values[], size_t len)
 147 {
 148         size_t i;
 149         uint8_t *buf, *p;
 150         int ret;
 151         size_t send_size = 1 + len * sizeof(uint32_t);
 152
 153         buf = kzalloc(send_size, GFP_KERNEL | GFP_DMA);
 154         if (!buf)
 155                 return -ENOMEM;
 156         buf[0] = reg;
 157
 158         for (i = 0, p = buf + 1; i < len; i++, p += sizeof(uint32_t))
 159                 put_unaligned_be32(values[i], p);
 160
 161         ret = i2c_master_send(client, buf, send_size);
 162
 163         kfree(buf);
 164
 165         if (ret == send_size)
 166                 return 0;
 167         else if (ret < 0)
 168                 return ret;
 169         else
 170                 return -EIO;
 171 }
 172
 173 /*
 174  * register read for 8- and 20-byte registers
 175  */
 176 static int tas571x_reg_read_multiword(struct i2c_client *client,
 177                 unsigned int reg, long values[], size_t len)
 178 {
 179         unsigned int i;
 180         uint8_t send_buf;
 181         uint8_t *recv_buf, *p;
 182         struct i2c_msg msgs[2];
 183         unsigned int recv_size = len * sizeof(uint32_t);
 184         int ret;
 185
 186         recv_buf = kzalloc(recv_size, GFP_KERNEL | GFP_DMA);
 187         if (!recv_buf)
 188                 return -ENOMEM;
 189
 190         send_buf = reg;
 191
 192         msgs[0].addr = client->addr;
 193         msgs[0].len = sizeof(send_buf);
 194         msgs[0].buf = &send_buf;
 195         msgs[0].flags = 0;
 196
 197         msgs[1].addr = client->addr;
 198         msgs[1].len = recv_size;
 199         msgs[1].buf = recv_buf;
 200         msgs[1].flags = I2C_M_RD;
 201
 202         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
 203         if (ret < 0)
 204                 goto err_ret;
 205         else if (ret != ARRAY_SIZE(msgs)) {
 206                 ret = -EIO;
 207                 goto err_ret;
 208         }
 209
 210         for (i = 0, p = recv_buf; i < len; i++, p += sizeof(uint32_t))
 211                 values[i] = get_unaligned_be32(p);
 212
 213 err_ret:
 214         kfree(recv_buf);
 215         return ret;
 216 }
 217
 218 /*
 219  * Integer array controls for setting biquad, mixer, DRC coefficients.
 220  * According to the datasheet each coefficient is effectively 26bits,
 221  * i.e. stored as 32bits, where bits [31:26] are ignored.
 222  * TI's TAS57xx Graphical Development Environment tool however produces
 223  * coefficients with more than 26 bits. For this reason we allow values
 224  * in the full 32-bits reange.
 225  * The coefficients are ordered as given in the TAS571x data sheet:
 226  * b0, b1, b2, a1, a2
 227  */
 228
 229 static int tas571x_coefficient_info(struct snd_kcontrol *kcontrol,
 230                                    struct snd_ctl_elem_info *uinfo)
 231 {
 232         int numcoef = kcontrol->private_value >> 16;
 233
 234         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 235         uinfo->count = numcoef;
 236         uinfo->value.integer.min = 0;
 237         uinfo->value.integer.max = 0xffffffff;
 238         return 0;
 239 }
 240
 241 static int tas571x_coefficient_get(struct snd_kcontrol *kcontrol,
 242                                   struct snd_ctl_elem_value *ucontrol)
 243 {
 244         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 245         struct i2c_client *i2c = to_i2c_client(component->dev);
 246         int numcoef = kcontrol->private_value >> 16;
 247         int index = kcontrol->private_value & 0xffff;
 248
 249         return tas571x_reg_read_multiword(i2c, index,
 250                 ucontrol->value.integer.value, numcoef);
 251 }
 252
 253 static int tas571x_coefficient_put(struct snd_kcontrol *kcontrol,
 254                                   struct snd_ctl_elem_value *ucontrol)
 255 {
 256         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 257         struct i2c_client *i2c = to_i2c_client(component->dev);
 258         int numcoef = kcontrol->private_value >> 16;
 259         int index = kcontrol->private_value & 0xffff;
 260
 261         return tas571x_reg_write_multiword(i2c, index,
 262                 ucontrol->value.integer.value, numcoef);
 263 }
 264
 265 static int tas571x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format)
 266 {
 267         struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component);
 268
 269         priv->format = format;
 270
 271         return 0;
 272 }
 273
 274 static int tas571x_hw_params(struct snd_pcm_substream *substream,
 275                              struct snd_pcm_hw_params *params,
 276                              struct snd_soc_dai *dai)
 277 {
 278         struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component);
 279         u32 val;
 280
 281         switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
 282         case SND_SOC_DAIFMT_RIGHT_J:
 283                 val = 0x00;
 284                 break;
 285         case SND_SOC_DAIFMT_I2S:
 286                 val = 0x03;
 287                 break;
 288         case SND_SOC_DAIFMT_LEFT_J:
 289                 val = 0x06;
 290                 break;
 291         default:
 292                 return -EINVAL;
 293         }
 294
 295         if (params_width(params) >= 24)
 296                 val += 2;
 297         else if (params_width(params) >= 20)
 298                 val += 1;
 299
 300         return regmap_update_bits(priv->regmap, TAS571X_SDI_REG,
 301                                   TAS571X_SDI_FMT_MASK, val);
 302 }
 303
 304 static int tas571x_mute(struct snd_soc_dai *dai, int mute, int direction)
 305 {
 306         struct snd_soc_component *component = dai->component;
 307         u8 sysctl2;
 308         int ret;
 309
 310         sysctl2 = mute ? TAS571X_SYS_CTRL_2_SDN_MASK : 0;
 311
 312         ret = snd_soc_component_update_bits(component,
 313                             TAS571X_SYS_CTRL_2_REG,
 314                      TAS571X_SYS_CTRL_2_SDN_MASK,
 315                      sysctl2);
 316         usleep_range(1000, 2000);
 317
 318         return ret;
 319 }
 320
 321 static int tas571x_set_bias_level(struct snd_soc_component *component,
 322                                   enum snd_soc_bias_level level)
 323 {
 324         struct tas571x_private *priv = snd_soc_component_get_drvdata(component);
 325         int ret;
 326
 327         switch (level) {
 328         case SND_SOC_BIAS_ON:
 329                 break;
 330         case SND_SOC_BIAS_PREPARE:
 331                 break;
 332         case SND_SOC_BIAS_STANDBY:
 333                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
 334                         if (!IS_ERR(priv->mclk)) {
 335                                 ret = clk_prepare_enable(priv->mclk);
 336                                 if (ret) {
 337                                         dev_err(component->dev,
 338                                                 "Failed to enable master clock: %d\n",
 339                                                 ret);
 340                                         return ret;
 341                                 }
 342                         }
 343                 }
 344                 break;
 345         case SND_SOC_BIAS_OFF:
 346                 if (!IS_ERR(priv->mclk))
 347                         clk_disable_unprepare(priv->mclk);
 348                 break;
 349         }
 350
 351         return 0;
 352 }
 353
 354 static const struct snd_soc_dai_ops tas571x_dai_ops = {
 355         .set_fmt        = tas571x_set_dai_fmt,
 356         .hw_params      = tas571x_hw_params,
 357         .mute_stream    = tas571x_mute,
 358         .no_capture_mute = 1,
 359 };
 360
 361
 362 #define BIQUAD_COEFS(xname, reg) \
 363 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 364         .info = tas571x_coefficient_info, \
 365         .get = tas571x_coefficient_get,\
 366         .put = tas571x_coefficient_put, \
 367         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 368         .private_value = reg | (5 << 16) }
 369
 370 static const char *const tas5711_supply_names[] = {
 371         "AVDD",
 372         "DVDD",
 373         "PVDD_A",
 374         "PVDD_B",
 375         "PVDD_C",
 376         "PVDD_D",
 377 };
 378
 379 static const DECLARE_TLV_DB_SCALE(tas5711_volume_tlv, -10350, 50, 1);
 380
 381 static const struct snd_kcontrol_new tas5711_controls[] = {
 382         SOC_SINGLE_TLV("Master Volume",
 383                        TAS571X_MVOL_REG,
 384                        0, 0xff, 1, tas5711_volume_tlv),
 385         SOC_DOUBLE_R_TLV("Speaker Volume",
 386                          TAS571X_CH1_VOL_REG,
 387                          TAS571X_CH2_VOL_REG,
 388                          0, 0xff, 1, tas5711_volume_tlv),
 389         SOC_DOUBLE("Speaker Switch",
 390                    TAS571X_SOFT_MUTE_REG,
 391                    TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 392                    1, 1),
 393 };
 394
 395 static const struct regmap_range tas571x_readonly_regs_range[] = {
 396         regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_DEV_ID_REG),
 397 };
 398
 399 static const struct regmap_range tas571x_volatile_regs_range[] = {
 400         regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_ERR_STATUS_REG),
 401         regmap_reg_range(TAS571X_OSC_TRIM_REG,  TAS571X_OSC_TRIM_REG),
 402 };
 403
 404 static const struct regmap_access_table tas571x_write_regs = {
 405         .no_ranges =    tas571x_readonly_regs_range,
 406         .n_no_ranges =  ARRAY_SIZE(tas571x_readonly_regs_range),
 407 };
 408
 409 static const struct regmap_access_table tas571x_volatile_regs = {
 410         .yes_ranges =   tas571x_volatile_regs_range,
 411         .n_yes_ranges = ARRAY_SIZE(tas571x_volatile_regs_range),
 412
 413 };
 414
 415 static const struct reg_default tas5711_reg_defaults[] = {
 416         { 0x04, 0x05 },
 417         { 0x05, 0x40 },
 418         { 0x06, 0x00 },
 419         { 0x07, 0xff },
 420         { 0x08, 0x30 },
 421         { 0x09, 0x30 },
 422         { 0x1b, 0x82 },
 423 };
 424
 425 static const struct regmap_config tas5711_regmap_config = {
 426         .reg_bits                       = 8,
 427         .val_bits                       = 32,
 428         .max_register                   = 0xff,
 429         .reg_read                       = tas571x_reg_read,
 430         .reg_write                      = tas571x_reg_write,
 431         .reg_defaults                   = tas5711_reg_defaults,
 432         .num_reg_defaults               = ARRAY_SIZE(tas5711_reg_defaults),
 433         .cache_type                     = REGCACHE_RBTREE,
 434         .wr_table                       = &tas571x_write_regs,
 435         .volatile_table                 = &tas571x_volatile_regs,
 436 };
 437
 438 static const struct tas571x_chip tas5711_chip = {
 439         .supply_names                   = tas5711_supply_names,
 440         .num_supply_names               = ARRAY_SIZE(tas5711_supply_names),
 441         .controls                       = tas5711_controls,
 442         .num_controls                   = ARRAY_SIZE(tas5711_controls),
 443         .regmap_config                  = &tas5711_regmap_config,
 444         .vol_reg_size                   = 1,
 445 };
 446
 447 static const struct regmap_range tas5707_volatile_regs_range[] = {
 448         regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_ERR_STATUS_REG),
 449         regmap_reg_range(TAS571X_OSC_TRIM_REG,  TAS571X_OSC_TRIM_REG),
 450         regmap_reg_range(TAS5707_CH1_BQ0_REG, TAS5707_CH2_BQ6_REG),
 451 };
 452
 453 static const struct regmap_access_table tas5707_volatile_regs = {
 454         .yes_ranges =   tas5707_volatile_regs_range,
 455         .n_yes_ranges = ARRAY_SIZE(tas5707_volatile_regs_range),
 456
 457 };
 458
 459 static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1);
 460
 461 static const char * const tas5707_volume_slew_step_txt[] = {
 462         "256", "512", "1024", "2048",
 463 };
 464
 465 static const unsigned int tas5707_volume_slew_step_values[] = {
 466         3, 0, 1, 2,
 467 };
 468
 469 static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum,
 470                                   TAS571X_VOL_CFG_REG, 0, 0x3,
 471                                   tas5707_volume_slew_step_txt,
 472                                   tas5707_volume_slew_step_values);
 473
 474 static const struct snd_kcontrol_new tas5707_controls[] = {
 475         SOC_SINGLE_TLV("Master Volume",
 476                        TAS571X_MVOL_REG,
 477                        0, 0xff, 1, tas5707_volume_tlv),
 478         SOC_DOUBLE_R_TLV("Speaker Volume",
 479                          TAS571X_CH1_VOL_REG,
 480                          TAS571X_CH2_VOL_REG,
 481                          0, 0xff, 1, tas5707_volume_tlv),
 482         SOC_DOUBLE("Speaker Switch",
 483                    TAS571X_SOFT_MUTE_REG,
 484                    TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 485                    1, 1),
 486
 487         SOC_ENUM("Slew Rate Steps", tas5707_volume_slew_step_enum),
 488
 489         BIQUAD_COEFS("CH1 - Biquad 0", TAS5707_CH1_BQ0_REG),
 490         BIQUAD_COEFS("CH1 - Biquad 1", TAS5707_CH1_BQ1_REG),
 491         BIQUAD_COEFS("CH1 - Biquad 2", TAS5707_CH1_BQ2_REG),
 492         BIQUAD_COEFS("CH1 - Biquad 3", TAS5707_CH1_BQ3_REG),
 493         BIQUAD_COEFS("CH1 - Biquad 4", TAS5707_CH1_BQ4_REG),
 494         BIQUAD_COEFS("CH1 - Biquad 5", TAS5707_CH1_BQ5_REG),
 495         BIQUAD_COEFS("CH1 - Biquad 6", TAS5707_CH1_BQ6_REG),
 496
 497         BIQUAD_COEFS("CH2 - Biquad 0", TAS5707_CH2_BQ0_REG),
 498         BIQUAD_COEFS("CH2 - Biquad 1", TAS5707_CH2_BQ1_REG),
 499         BIQUAD_COEFS("CH2 - Biquad 2", TAS5707_CH2_BQ2_REG),
 500         BIQUAD_COEFS("CH2 - Biquad 3", TAS5707_CH2_BQ3_REG),
 501         BIQUAD_COEFS("CH2 - Biquad 4", TAS5707_CH2_BQ4_REG),
 502         BIQUAD_COEFS("CH2 - Biquad 5", TAS5707_CH2_BQ5_REG),
 503         BIQUAD_COEFS("CH2 - Biquad 6", TAS5707_CH2_BQ6_REG),
 504 };
 505
 506 static const struct reg_default tas5707_reg_defaults[] = {
 507         {TAS571X_CLK_CTRL_REG,          0x6c},
 508         {TAS571X_DEV_ID_REG,            0x70},
 509         {TAS571X_ERR_STATUS_REG,        0x00},
 510         {TAS571X_SYS_CTRL_1_REG,        0xa0},
 511         {TAS571X_SDI_REG,               0x05},
 512         {TAS571X_SYS_CTRL_2_REG,        0x40},
 513         {TAS571X_SOFT_MUTE_REG,         0x00},
 514         {TAS571X_MVOL_REG,              0xff},
 515         {TAS571X_CH1_VOL_REG,           0x30},
 516         {TAS571X_CH2_VOL_REG,           0x30},
 517         {TAS571X_VOL_CFG_REG,           0x91},
 518         {TAS571X_MODULATION_LIMIT_REG,  0x02},
 519         {TAS571X_IC_DELAY_CH1_REG,      0xac},
 520         {TAS571X_IC_DELAY_CH2_REG,      0x54},
 521         {TAS571X_IC_DELAY_CH3_REG,      0xac},
 522         {TAS571X_IC_DELAY_CH4_REG,      0x54},
 523         {TAS571X_START_STOP_PERIOD_REG, 0x0f},
 524         {TAS571X_OSC_TRIM_REG,          0x82},
 525         {TAS571X_BKND_ERR_REG,          0x02},
 526         {TAS571X_INPUT_MUX_REG,         0x17772},
 527         {TAS571X_PWM_MUX_REG,           0x1021345},
 528 };
 529
 530 static const struct regmap_config tas5707_regmap_config = {
 531         .reg_bits                       = 8,
 532         .val_bits                       = 32,
 533         .max_register                   = 0xff,
 534         .reg_read                       = tas571x_reg_read,
 535         .reg_write                      = tas571x_reg_write,
 536         .reg_defaults                   = tas5707_reg_defaults,
 537         .num_reg_defaults               = ARRAY_SIZE(tas5707_reg_defaults),
 538         .cache_type                     = REGCACHE_RBTREE,
 539         .wr_table                       = &tas571x_write_regs,
 540         .volatile_table                 = &tas5707_volatile_regs,
 541 };
 542
 543 static const struct tas571x_chip tas5707_chip = {
 544         .supply_names                   = tas5711_supply_names,
 545         .num_supply_names               = ARRAY_SIZE(tas5711_supply_names),
 546         .controls                       = tas5707_controls,
 547         .num_controls                   = ARRAY_SIZE(tas5707_controls),
 548         .regmap_config                  = &tas5707_regmap_config,
 549         .vol_reg_size                   = 1,
 550 };
 551
 552 static const char *const tas5717_supply_names[] = {
 553         "AVDD",
 554         "DVDD",
 555         "HPVDD",
 556         "PVDD_AB",
 557         "PVDD_CD",
 558 };
 559
 560 static const DECLARE_TLV_DB_SCALE(tas5717_volume_tlv, -10375, 25, 0);
 561
 562 static const struct snd_kcontrol_new tas5717_controls[] = {
 563         /* MVOL LSB is ignored - see comments in tas571x_i2c_probe() */
 564         SOC_SINGLE_TLV("Master Volume",
 565                        TAS571X_MVOL_REG, 1, 0x1ff, 1,
 566                        tas5717_volume_tlv),
 567         SOC_DOUBLE_R_TLV("Speaker Volume",
 568                          TAS571X_CH1_VOL_REG, TAS571X_CH2_VOL_REG,
 569                          1, 0x1ff, 1, tas5717_volume_tlv),
 570         SOC_DOUBLE("Speaker Switch",
 571                    TAS571X_SOFT_MUTE_REG,
 572                    TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 573                    1, 1),
 574
 575         SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
 576                            TAS5717_CH1_LEFT_CH_MIX_REG,
 577                            TAS5717_CH1_RIGHT_CH_MIX_REG,
 578                            16, 0, 0x80, 0),
 579
 580         SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
 581                            TAS5717_CH2_LEFT_CH_MIX_REG,
 582                            TAS5717_CH2_RIGHT_CH_MIX_REG,
 583                            16, 0, 0x80, 0),
 584
 585         /*
 586          * The biquads are named according to the register names.
 587          * Please note that TI's TAS57xx Graphical Development Environment
 588          * tool names them different.
 589          */
 590         BIQUAD_COEFS("CH1 - Biquad 0", TAS5717_CH1_BQ0_REG),
 591         BIQUAD_COEFS("CH1 - Biquad 1", TAS5717_CH1_BQ1_REG),
 592         BIQUAD_COEFS("CH1 - Biquad 2", TAS5717_CH1_BQ2_REG),
 593         BIQUAD_COEFS("CH1 - Biquad 3", TAS5717_CH1_BQ3_REG),
 594         BIQUAD_COEFS("CH1 - Biquad 4", TAS5717_CH1_BQ4_REG),
 595         BIQUAD_COEFS("CH1 - Biquad 5", TAS5717_CH1_BQ5_REG),
 596         BIQUAD_COEFS("CH1 - Biquad 6", TAS5717_CH1_BQ6_REG),
 597         BIQUAD_COEFS("CH1 - Biquad 7", TAS5717_CH1_BQ7_REG),
 598         BIQUAD_COEFS("CH1 - Biquad 8", TAS5717_CH1_BQ8_REG),
 599         BIQUAD_COEFS("CH1 - Biquad 9", TAS5717_CH1_BQ9_REG),
 600         BIQUAD_COEFS("CH1 - Biquad 10", TAS5717_CH1_BQ10_REG),
 601         BIQUAD_COEFS("CH1 - Biquad 11", TAS5717_CH1_BQ11_REG),
 602
 603         BIQUAD_COEFS("CH2 - Biquad 0", TAS5717_CH2_BQ0_REG),
 604         BIQUAD_COEFS("CH2 - Biquad 1", TAS5717_CH2_BQ1_REG),
 605         BIQUAD_COEFS("CH2 - Biquad 2", TAS5717_CH2_BQ2_REG),
 606         BIQUAD_COEFS("CH2 - Biquad 3", TAS5717_CH2_BQ3_REG),
 607         BIQUAD_COEFS("CH2 - Biquad 4", TAS5717_CH2_BQ4_REG),
 608         BIQUAD_COEFS("CH2 - Biquad 5", TAS5717_CH2_BQ5_REG),
 609         BIQUAD_COEFS("CH2 - Biquad 6", TAS5717_CH2_BQ6_REG),
 610         BIQUAD_COEFS("CH2 - Biquad 7", TAS5717_CH2_BQ7_REG),
 611         BIQUAD_COEFS("CH2 - Biquad 8", TAS5717_CH2_BQ8_REG),
 612         BIQUAD_COEFS("CH2 - Biquad 9", TAS5717_CH2_BQ9_REG),
 613         BIQUAD_COEFS("CH2 - Biquad 10", TAS5717_CH2_BQ10_REG),
 614         BIQUAD_COEFS("CH2 - Biquad 11", TAS5717_CH2_BQ11_REG),
 615
 616         BIQUAD_COEFS("CH3 - Biquad 0", TAS5717_CH3_BQ0_REG),
 617         BIQUAD_COEFS("CH3 - Biquad 1", TAS5717_CH3_BQ1_REG),
 618
 619         BIQUAD_COEFS("CH4 - Biquad 0", TAS5717_CH4_BQ0_REG),
 620         BIQUAD_COEFS("CH4 - Biquad 1", TAS5717_CH4_BQ1_REG),
 621 };
 622
 623 static const struct reg_default tas5717_reg_defaults[] = {
 624         { 0x04, 0x05 },
 625         { 0x05, 0x40 },
 626         { 0x06, 0x00 },
 627         { 0x07, 0x03ff },
 628         { 0x08, 0x00c0 },
 629         { 0x09, 0x00c0 },
 630         { 0x1b, 0x82 },
 631         { TAS5717_CH1_RIGHT_CH_MIX_REG, 0x0 },
 632         { TAS5717_CH1_LEFT_CH_MIX_REG, 0x800000},
 633         { TAS5717_CH2_LEFT_CH_MIX_REG, 0x0 },
 634         { TAS5717_CH2_RIGHT_CH_MIX_REG, 0x800000},
 635 };
 636
 637 static const struct regmap_config tas5717_regmap_config = {
 638         .reg_bits                       = 8,
 639         .val_bits                       = 32,
 640         .max_register                   = 0xff,
 641         .reg_read                       = tas571x_reg_read,
 642         .reg_write                      = tas571x_reg_write,
 643         .reg_defaults                   = tas5717_reg_defaults,
 644         .num_reg_defaults               = ARRAY_SIZE(tas5717_reg_defaults),
 645         .cache_type                     = REGCACHE_RBTREE,
 646         .wr_table                       = &tas571x_write_regs,
 647         .volatile_table                 = &tas571x_volatile_regs,
 648 };
 649
 650 /* This entry is reused for tas5719 as the software interface is identical. */
 651 static const struct tas571x_chip tas5717_chip = {
 652         .supply_names                   = tas5717_supply_names,
 653         .num_supply_names               = ARRAY_SIZE(tas5717_supply_names),
 654         .controls                       = tas5717_controls,
 655         .num_controls                   = ARRAY_SIZE(tas5717_controls),
 656         .regmap_config                  = &tas5717_regmap_config,
 657         .vol_reg_size                   = 2,
 658 };
 659
 660 static const char *const tas5721_supply_names[] = {
 661         "AVDD",
 662         "DVDD",
 663         "DRVDD",
 664         "PVDD",
 665 };
 666
 667 static const struct snd_kcontrol_new tas5721_controls[] = {
 668         SOC_SINGLE_TLV("Master Volume",
 669                        TAS571X_MVOL_REG,
 670                        0, 0xff, 1, tas5711_volume_tlv),
 671         SOC_DOUBLE_R_TLV("Speaker Volume",
 672                          TAS571X_CH1_VOL_REG,
 673                          TAS571X_CH2_VOL_REG,
 674                          0, 0xff, 1, tas5711_volume_tlv),
 675         SOC_DOUBLE("Speaker Switch",
 676                    TAS571X_SOFT_MUTE_REG,
 677                    TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 678                    1, 1),
 679 };
 680
 681 static const struct reg_default tas5721_reg_defaults[] = {
 682         {TAS571X_CLK_CTRL_REG,          0x6c},
 683         {TAS571X_DEV_ID_REG,            0x00},
 684         {TAS571X_ERR_STATUS_REG,        0x00},
 685         {TAS571X_SYS_CTRL_1_REG,        0xa0},
 686         {TAS571X_SDI_REG,               0x05},
 687         {TAS571X_SYS_CTRL_2_REG,        0x40},
 688         {TAS571X_SOFT_MUTE_REG,         0x00},
 689         {TAS571X_MVOL_REG,              0xff},
 690         {TAS571X_CH1_VOL_REG,           0x30},
 691         {TAS571X_CH2_VOL_REG,           0x30},
 692         {TAS571X_CH3_VOL_REG,           0x30},
 693         {TAS571X_VOL_CFG_REG,           0x91},
 694         {TAS571X_MODULATION_LIMIT_REG,  0x02},
 695         {TAS571X_IC_DELAY_CH1_REG,      0xac},
 696         {TAS571X_IC_DELAY_CH2_REG,      0x54},
 697         {TAS571X_IC_DELAY_CH3_REG,      0xac},
 698         {TAS571X_IC_DELAY_CH4_REG,      0x54},
 699         {TAS571X_PWM_CH_SDN_GROUP_REG,  0x30},
 700         {TAS571X_START_STOP_PERIOD_REG, 0x0f},
 701         {TAS571X_OSC_TRIM_REG,          0x82},
 702         {TAS571X_BKND_ERR_REG,          0x02},
 703         {TAS571X_INPUT_MUX_REG,         0x17772},
 704         {TAS571X_CH4_SRC_SELECT_REG,    0x4303},
 705         {TAS571X_PWM_MUX_REG,           0x1021345},
 706 };
 707
 708 static const struct regmap_config tas5721_regmap_config = {
 709         .reg_bits                       = 8,
 710         .val_bits                       = 32,
 711         .max_register                   = 0xff,
 712         .reg_read                       = tas571x_reg_read,
 713         .reg_write                      = tas571x_reg_write,
 714         .reg_defaults                   = tas5721_reg_defaults,
 715         .num_reg_defaults               = ARRAY_SIZE(tas5721_reg_defaults),
 716         .cache_type                     = REGCACHE_RBTREE,
 717         .wr_table                       = &tas571x_write_regs,
 718         .volatile_table                 = &tas571x_volatile_regs,
 719 };
 720
 721
 722 static const struct tas571x_chip tas5721_chip = {
 723         .supply_names                   = tas5721_supply_names,
 724         .num_supply_names               = ARRAY_SIZE(tas5721_supply_names),
 725         .controls                       = tas5721_controls,
 726         .num_controls                   = ARRAY_SIZE(tas5721_controls),
 727         .regmap_config                  = &tas5721_regmap_config,
 728         .vol_reg_size                   = 1,
 729 };
 730
 731 static const struct snd_soc_dapm_widget tas571x_dapm_widgets[] = {
 732         SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0),
 733         SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0),
 734
 735         SND_SOC_DAPM_OUTPUT("OUT_A"),
 736         SND_SOC_DAPM_OUTPUT("OUT_B"),
 737         SND_SOC_DAPM_OUTPUT("OUT_C"),
 738         SND_SOC_DAPM_OUTPUT("OUT_D"),
 739 };
 740
 741 static const struct snd_soc_dapm_route tas571x_dapm_routes[] = {
 742         { "DACL",  NULL, "Playback" },
 743         { "DACR",  NULL, "Playback" },
 744
 745         { "OUT_A", NULL, "DACL" },
 746         { "OUT_B", NULL, "DACL" },
 747         { "OUT_C", NULL, "DACR" },
 748         { "OUT_D", NULL, "DACR" },
 749 };
 750
 751 static const struct snd_soc_component_driver tas571x_component = {
 752         .set_bias_level         = tas571x_set_bias_level,
 753         .dapm_widgets           = tas571x_dapm_widgets,
 754         .num_dapm_widgets       = ARRAY_SIZE(tas571x_dapm_widgets),
 755         .dapm_routes            = tas571x_dapm_routes,
 756         .num_dapm_routes        = ARRAY_SIZE(tas571x_dapm_routes),
 757         .use_pmdown_time        = 1,
 758         .endianness             = 1,
 759         .non_legacy_dai_naming  = 1,
 760 };
 761
 762 static struct snd_soc_dai_driver tas571x_dai = {
 763         .name = "tas571x-hifi",
 764         .playback = {
 765                 .stream_name = "Playback",
 766                 .channels_min = 2,
 767                 .channels_max = 2,
 768                 .rates = SNDRV_PCM_RATE_8000_48000,
 769                 .formats = SNDRV_PCM_FMTBIT_S32_LE |
 770                            SNDRV_PCM_FMTBIT_S24_LE |
 771                            SNDRV_PCM_FMTBIT_S16_LE,
 772         },
 773         .ops = &tas571x_dai_ops,
 774 };
 775
 776 static const struct of_device_id tas571x_of_match[] __maybe_unused;
 777
 778 static int tas571x_i2c_probe(struct i2c_client *client,
 779                              const struct i2c_device_id *id)
 780 {
 781         struct tas571x_private *priv;
 782         struct device *dev = &client->dev;
 783         const struct of_device_id *of_id;
 784         int i, ret;
 785
 786         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 787         if (!priv)
 788                 return -ENOMEM;
 789         i2c_set_clientdata(client, priv);
 790
 791         of_id = of_match_device(tas571x_of_match, dev);
 792         if (of_id)
 793                 priv->chip = of_id->data;
 794         else
 795                 priv->chip = (void *) id->driver_data;
 796
 797         priv->mclk = devm_clk_get(dev, "mclk");
 798         if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) {
 799                 dev_err(dev, "Failed to request mclk: %ld\n",
 800                         PTR_ERR(priv->mclk));
 801                 return PTR_ERR(priv->mclk);
 802         }
 803
 804         if (WARN_ON(priv->chip->num_supply_names > TAS571X_MAX_SUPPLIES))
 805                 return -EINVAL;
 806         for (i = 0; i < priv->chip->num_supply_names; i++)
 807                 priv->supplies[i].supply = priv->chip->supply_names[i];
 808
 809         ret = devm_regulator_bulk_get(dev, priv->chip->num_supply_names,
 810                                       priv->supplies);
 811         if (ret) {
 812                 dev_err(dev, "Failed to get supplies: %d\n", ret);
 813                 return ret;
 814         }
 815         ret = regulator_bulk_enable(priv->chip->num_supply_names,
 816                                     priv->supplies);
 817         if (ret) {
 818                 dev_err(dev, "Failed to enable supplies: %d\n", ret);
 819                 return ret;
 820         }
 821
 822         priv->regmap = devm_regmap_init(dev, NULL, client,
 823                                         priv->chip->regmap_config);
 824         if (IS_ERR(priv->regmap)) {
 825                 ret = PTR_ERR(priv->regmap);
 826                 goto disable_regs;
 827         }
 828
 829         priv->pdn_gpio = devm_gpiod_get_optional(dev, "pdn", GPIOD_OUT_LOW);
 830         if (IS_ERR(priv->pdn_gpio)) {
 831                 dev_err(dev, "error requesting pdn_gpio: %ld\n",
 832                         PTR_ERR(priv->pdn_gpio));
 833                 return PTR_ERR(priv->pdn_gpio);
 834         }
 835
 836         priv->reset_gpio = devm_gpiod_get_optional(dev, "reset",
 837                                                    GPIOD_OUT_HIGH);
 838         if (IS_ERR(priv->reset_gpio)) {
 839                 dev_err(dev, "error requesting reset_gpio: %ld\n",
 840                         PTR_ERR(priv->reset_gpio));
 841                 return PTR_ERR(priv->reset_gpio);
 842         } else if (priv->reset_gpio) {
 843                 /* pulse the active low reset line for ~100us */
 844                 usleep_range(100, 200);
 845                 gpiod_set_value(priv->reset_gpio, 0);
 846                 usleep_range(13500, 20000);
 847         }
 848
 849         ret = regmap_write(priv->regmap, TAS571X_OSC_TRIM_REG, 0);
 850         if (ret)
 851                 goto disable_regs;
 852
 853         usleep_range(50000, 60000);
 854
 855         memcpy(&priv->component_driver, &tas571x_component, sizeof(priv->component_driver));
 856         priv->component_driver.controls = priv->chip->controls;
 857         priv->component_driver.num_controls = priv->chip->num_controls;
 858
 859         if (priv->chip->vol_reg_size == 2) {
 860                 /*
 861                  * The master volume defaults to 0x3ff (mute), but we ignore
 862                  * (zero) the LSB because the hardware step size is 0.125 dB
 863                  * and TLV_DB_SCALE_ITEM has a resolution of 0.01 dB.
 864                  */
 865                 ret = regmap_update_bits(priv->regmap, TAS571X_MVOL_REG, 1, 0);
 866                 if (ret)
 867                         goto disable_regs;
 868         }
 869
 870         ret = devm_snd_soc_register_component(&client->dev,
 871                                       &priv->component_driver,
 872                                       &tas571x_dai, 1);
 873         if (ret)
 874                 goto disable_regs;
 875
 876         return ret;
 877
 878 disable_regs:
 879         regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies);
 880         return ret;
 881 }
 882
 883 static int tas571x_i2c_remove(struct i2c_client *client)
 884 {
 885         struct tas571x_private *priv = i2c_get_clientdata(client);
 886
 887         regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies);
 888
 889         return 0;
 890 }
 891
 892 static const struct of_device_id tas571x_of_match[] __maybe_unused = {
 893         { .compatible = "ti,tas5707", .data = &tas5707_chip, },
 894         { .compatible = "ti,tas5711", .data = &tas5711_chip, },
 895         { .compatible = "ti,tas5717", .data = &tas5717_chip, },
 896         { .compatible = "ti,tas5719", .data = &tas5717_chip, },
 897         { .compatible = "ti,tas5721", .data = &tas5721_chip, },
 898         { }
 899 };
 900 MODULE_DEVICE_TABLE(of, tas571x_of_match);
 901
 902 static const struct i2c_device_id tas571x_i2c_id[] = {
 903         { "tas5707", (kernel_ulong_t) &tas5707_chip },
 904         { "tas5711", (kernel_ulong_t) &tas5711_chip },
 905         { "tas5717", (kernel_ulong_t) &tas5717_chip },
 906         { "tas5719", (kernel_ulong_t) &tas5717_chip },
 907         { "tas5721", (kernel_ulong_t) &tas5721_chip },
 908         { }
 909 };
 910 MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id);
 911
 912 static struct i2c_driver tas571x_i2c_driver = {
 913         .driver = {
 914                 .name = "tas571x",
 915                 .of_match_table = of_match_ptr(tas571x_of_match),
 916         },
 917         .probe = tas571x_i2c_probe,
 918         .remove = tas571x_i2c_remove,
 919         .id_table = tas571x_i2c_id,
 920 };
 921 module_i2c_driver(tas571x_i2c_driver);
 922
 923 MODULE_DESCRIPTION("ASoC TAS571x driver");
 924 MODULE_AUTHOR("Kevin Cernekee <cernekee@chromium.org>");
 925 MODULE_LICENSE("GPL");