sound/soc/tegra/tegra210_mixer.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // tegra210_mixer.c - Tegra210 MIXER driver
   4 //
   5 // Copyright (c) 2021 NVIDIA CORPORATION.  All rights reserved.
   6
   7 #include <linux/clk.h>
   8 #include <linux/device.h>
   9 #include <linux/io.h>
  10 #include <linux/mod_devicetable.h>
  11 #include <linux/module.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/pm_runtime.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
  20 #include "tegra210_mixer.h"
  21 #include "tegra_cif.h"
  22
  23 #define MIXER_REG(reg, id)      ((reg) + ((id) * TEGRA210_MIXER_REG_STRIDE))
  24 #define MIXER_REG_BASE(reg)     ((reg) % TEGRA210_MIXER_REG_STRIDE)
  25
  26 #define MIXER_GAIN_CFG_RAM_ADDR(id)                                     \
  27         (TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0 +                           \
  28          ((id) * TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE))
  29
  30 #define MIXER_RX_REG_DEFAULTS(id)                                       \
  31         { MIXER_REG(TEGRA210_MIXER_RX1_CIF_CTRL, id), 0x00007700},      \
  32         { MIXER_REG(TEGRA210_MIXER_RX1_CTRL, id), 0x00010823},  \
  33         { MIXER_REG(TEGRA210_MIXER_RX1_PEAK_CTRL, id), 0x000012c0}
  34
  35 #define MIXER_TX_REG_DEFAULTS(id)                                       \
  36         { MIXER_REG(TEGRA210_MIXER_TX1_INT_MASK, (id)), 0x00000001},    \
  37         { MIXER_REG(TEGRA210_MIXER_TX1_CIF_CTRL, (id)), 0x00007700}
  38
  39 #define REG_DURATION_PARAM(reg, i) ((reg) + NUM_GAIN_POLY_COEFFS + 1 + (i))
  40
  41 static const struct reg_default tegra210_mixer_reg_defaults[] = {
  42         /* Inputs */
  43         MIXER_RX_REG_DEFAULTS(0),
  44         MIXER_RX_REG_DEFAULTS(1),
  45         MIXER_RX_REG_DEFAULTS(2),
  46         MIXER_RX_REG_DEFAULTS(3),
  47         MIXER_RX_REG_DEFAULTS(4),
  48         MIXER_RX_REG_DEFAULTS(5),
  49         MIXER_RX_REG_DEFAULTS(6),
  50         MIXER_RX_REG_DEFAULTS(7),
  51         MIXER_RX_REG_DEFAULTS(8),
  52         MIXER_RX_REG_DEFAULTS(9),
  53         /* Outputs */
  54         MIXER_TX_REG_DEFAULTS(0),
  55         MIXER_TX_REG_DEFAULTS(1),
  56         MIXER_TX_REG_DEFAULTS(2),
  57         MIXER_TX_REG_DEFAULTS(3),
  58         MIXER_TX_REG_DEFAULTS(4),
  59
  60         { TEGRA210_MIXER_CG, 0x00000001},
  61         { TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, 0x00004000},
  62         { TEGRA210_MIXER_PEAKM_RAM_CTRL, 0x00004000},
  63         { TEGRA210_MIXER_ENABLE, 0x1 },
  64 };
  65
  66 /* Default gain parameters */
  67 static const struct tegra210_mixer_gain_params gain_params = {
  68         /* Polynomial coefficients */
  69         { 0, 0, 0, 0, 0, 0, 0, 0x1000000, 0 },
  70         /* Gain value */
  71         0x10000,
  72         /* Duration Parameters */
  73         { 0, 0, 0x400, 0x8000000 },
  74 };
  75
  76 static int __maybe_unused tegra210_mixer_runtime_suspend(struct device *dev)
  77 {
  78         struct tegra210_mixer *mixer = dev_get_drvdata(dev);
  79
  80         regcache_cache_only(mixer->regmap, true);
  81         regcache_mark_dirty(mixer->regmap);
  82
  83         return 0;
  84 }
  85
  86 static int __maybe_unused tegra210_mixer_runtime_resume(struct device *dev)
  87 {
  88         struct tegra210_mixer *mixer = dev_get_drvdata(dev);
  89
  90         regcache_cache_only(mixer->regmap, false);
  91         regcache_sync(mixer->regmap);
  92
  93         return 0;
  94 }
  95
  96 static int tegra210_mixer_write_ram(struct tegra210_mixer *mixer,
  97                                     unsigned int addr,
  98                                     unsigned int coef)
  99 {
 100         unsigned int reg, val;
 101         int err;
 102
 103         /* Check if busy */
 104         err = regmap_read_poll_timeout(mixer->regmap,
 105                                        TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
 106                                        val, !(val & 0x80000000), 10, 10000);
 107         if (err < 0)
 108                 return err;
 109
 110         reg = (addr << TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_SHIFT) &
 111               TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_MASK;
 112         reg |= TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_INIT_EN;
 113         reg |= TEGRA210_MIXER_GAIN_CFG_RAM_RW_WRITE;
 114         reg |= TEGRA210_MIXER_GAIN_CFG_RAM_SEQ_ACCESS_EN;
 115
 116         regmap_write(mixer->regmap,
 117                      TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
 118                      reg);
 119         regmap_write(mixer->regmap,
 120                      TEGRA210_MIXER_GAIN_CFG_RAM_DATA,
 121                      coef);
 122
 123         return 0;
 124 }
 125
 126 static int tegra210_mixer_configure_gain(struct snd_soc_component *cmpnt,
 127                                          unsigned int id, bool instant_gain)
 128 {
 129         struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
 130         unsigned int reg = MIXER_GAIN_CFG_RAM_ADDR(id);
 131         int err, i;
 132
 133         pm_runtime_get_sync(cmpnt->dev);
 134
 135         /* Write default gain poly coefficients */
 136         for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++) {
 137                 err = tegra210_mixer_write_ram(mixer, reg + i,
 138                                                gain_params.poly_coeff[i]);
 139
 140                 if (err < 0)
 141                         goto rpm_put;
 142         }
 143
 144         /* Write stored gain value */
 145         err = tegra210_mixer_write_ram(mixer, reg + NUM_GAIN_POLY_COEFFS,
 146                                        mixer->gain_value[id]);
 147         if (err < 0)
 148                 goto rpm_put;
 149
 150         /* Write duration parameters */
 151         for (i = 0; i < NUM_DURATION_PARMS; i++) {
 152                 int val;
 153
 154                 if (instant_gain)
 155                         val = 1;
 156                 else
 157                         val = gain_params.duration[i];
 158
 159                 err = tegra210_mixer_write_ram(mixer,
 160                                                REG_DURATION_PARAM(reg, i),
 161                                                val);
 162                 if (err < 0)
 163                         goto rpm_put;
 164         }
 165
 166         /* Trigger to apply gain configurations */
 167         err = tegra210_mixer_write_ram(mixer, reg + REG_CFG_DONE_TRIGGER,
 168                                        VAL_CFG_DONE_TRIGGER);
 169
 170 rpm_put:
 171         pm_runtime_put(cmpnt->dev);
 172
 173         return err;
 174 }
 175
 176 static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol,
 177                                    struct snd_ctl_elem_value *ucontrol)
 178 {
 179         struct soc_mixer_control *mc =
 180                 (struct soc_mixer_control *)kcontrol->private_value;
 181         struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 182         struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
 183         unsigned int reg = mc->reg;
 184         unsigned int i;
 185
 186         i = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
 187             TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
 188
 189         ucontrol->value.integer.value[0] = mixer->gain_value[i];
 190
 191         return 0;
 192 }
 193
 194 static int tegra210_mixer_apply_gain(struct snd_kcontrol *kcontrol,
 195                                      struct snd_ctl_elem_value *ucontrol,
 196                                      bool instant_gain)
 197 {
 198         struct soc_mixer_control *mc =
 199                 (struct soc_mixer_control *)kcontrol->private_value;
 200         struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 201         struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
 202         unsigned int reg = mc->reg, id;
 203         int err;
 204
 205         /* Save gain value for specific MIXER input */
 206         id = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
 207              TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
 208
 209         if (mixer->gain_value[id] == ucontrol->value.integer.value[0])
 210                 return 0;
 211
 212         mixer->gain_value[id] = ucontrol->value.integer.value[0];
 213
 214         err = tegra210_mixer_configure_gain(cmpnt, id, instant_gain);
 215         if (err) {
 216                 dev_err(cmpnt->dev, "Failed to apply gain\n");
 217                 return err;
 218         }
 219
 220         return 1;
 221 }
 222
 223 static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol,
 224                                    struct snd_ctl_elem_value *ucontrol)
 225 {
 226         return tegra210_mixer_apply_gain(kcontrol, ucontrol, false);
 227 }
 228
 229 static int tegra210_mixer_put_instant_gain(struct snd_kcontrol *kcontrol,
 230                                            struct snd_ctl_elem_value *ucontrol)
 231 {
 232         return tegra210_mixer_apply_gain(kcontrol, ucontrol, true);
 233 }
 234
 235 static int tegra210_mixer_set_audio_cif(struct tegra210_mixer *mixer,
 236                                         struct snd_pcm_hw_params *params,
 237                                         unsigned int reg,
 238                                         unsigned int id)
 239 {
 240         unsigned int channels, audio_bits;
 241         struct tegra_cif_conf cif_conf;
 242
 243         memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
 244
 245         channels = params_channels(params);
 246
 247         switch (params_format(params)) {
 248         case SNDRV_PCM_FORMAT_S16_LE:
 249                 audio_bits = TEGRA_ACIF_BITS_16;
 250                 break;
 251         case SNDRV_PCM_FORMAT_S32_LE:
 252                 audio_bits = TEGRA_ACIF_BITS_32;
 253                 break;
 254         default:
 255                 return -EINVAL;
 256         }
 257
 258         cif_conf.audio_ch = channels;
 259         cif_conf.client_ch = channels;
 260         cif_conf.audio_bits = audio_bits;
 261         cif_conf.client_bits = audio_bits;
 262
 263         tegra_set_cif(mixer->regmap,
 264                       reg + (id * TEGRA210_MIXER_REG_STRIDE),
 265                       &cif_conf);
 266
 267         return 0;
 268 }
 269
 270 static int tegra210_mixer_in_hw_params(struct snd_pcm_substream *substream,
 271                                        struct snd_pcm_hw_params *params,
 272                                        struct snd_soc_dai *dai)
 273 {
 274         struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
 275         int err;
 276
 277         err = tegra210_mixer_set_audio_cif(mixer, params,
 278                                            TEGRA210_MIXER_RX1_CIF_CTRL,
 279                                            dai->id);
 280         if (err < 0)
 281                 return err;
 282
 283         return tegra210_mixer_configure_gain(dai->component, dai->id, false);
 284 }
 285
 286 static int tegra210_mixer_out_hw_params(struct snd_pcm_substream *substream,
 287                                         struct snd_pcm_hw_params *params,
 288                                         struct snd_soc_dai *dai)
 289 {
 290         struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
 291
 292         return tegra210_mixer_set_audio_cif(mixer, params,
 293                                             TEGRA210_MIXER_TX1_CIF_CTRL,
 294                                             dai->id - TEGRA210_MIXER_RX_MAX);
 295 }
 296
 297 static const struct snd_soc_dai_ops tegra210_mixer_out_dai_ops = {
 298         .hw_params      = tegra210_mixer_out_hw_params,
 299 };
 300
 301 static const struct snd_soc_dai_ops tegra210_mixer_in_dai_ops = {
 302         .hw_params      = tegra210_mixer_in_hw_params,
 303 };
 304
 305 #define IN_DAI(id)                                              \
 306         {                                                       \
 307                 .name = "MIXER-RX-CIF"#id,                      \
 308                 .playback = {                                   \
 309                         .stream_name = "RX" #id "-CIF-Playback",\
 310                         .channels_min = 1,                      \
 311                         .channels_max = 8,                      \
 312                         .rates = SNDRV_PCM_RATE_8000_192000,    \
 313                         .formats = SNDRV_PCM_FMTBIT_S8 |        \
 314                                 SNDRV_PCM_FMTBIT_S16_LE |       \
 315                                 SNDRV_PCM_FMTBIT_S32_LE,        \
 316                 },                                              \
 317                 .capture = {                                    \
 318                         .stream_name = "RX" #id "-CIF-Capture", \
 319                         .channels_min = 1,                      \
 320                         .channels_max = 8,                      \
 321                         .rates = SNDRV_PCM_RATE_8000_192000,    \
 322                         .formats = SNDRV_PCM_FMTBIT_S8 |        \
 323                                 SNDRV_PCM_FMTBIT_S16_LE |       \
 324                                 SNDRV_PCM_FMTBIT_S32_LE,        \
 325                 },                                              \
 326                 .ops = &tegra210_mixer_in_dai_ops,              \
 327         }
 328
 329 #define OUT_DAI(id)                                             \
 330         {                                                       \
 331                 .name = "MIXER-TX-CIF" #id,                     \
 332                 .playback = {                                   \
 333                         .stream_name = "TX" #id "-CIF-Playback",\
 334                         .channels_min = 1,                      \
 335                         .channels_max = 8,                      \
 336                         .rates = SNDRV_PCM_RATE_8000_192000,    \
 337                         .formats = SNDRV_PCM_FMTBIT_S8 |        \
 338                                 SNDRV_PCM_FMTBIT_S16_LE |       \
 339                                 SNDRV_PCM_FMTBIT_S32_LE,        \
 340                 },                                              \
 341                 .capture = {                                    \
 342                         .stream_name = "TX" #id "-CIF-Capture", \
 343                         .channels_min = 1,                      \
 344                         .channels_max = 8,                      \
 345                         .rates = SNDRV_PCM_RATE_8000_192000,    \
 346                         .formats = SNDRV_PCM_FMTBIT_S8 |        \
 347                                 SNDRV_PCM_FMTBIT_S16_LE |       \
 348                                 SNDRV_PCM_FMTBIT_S32_LE,        \
 349                 },                                              \
 350                 .ops = &tegra210_mixer_out_dai_ops,             \
 351         }
 352
 353 static struct snd_soc_dai_driver tegra210_mixer_dais[] = {
 354         /* Mixer Input */
 355         IN_DAI(1),
 356         IN_DAI(2),
 357         IN_DAI(3),
 358         IN_DAI(4),
 359         IN_DAI(5),
 360         IN_DAI(6),
 361         IN_DAI(7),
 362         IN_DAI(8),
 363         IN_DAI(9),
 364         IN_DAI(10),
 365
 366         /* Mixer Output */
 367         OUT_DAI(1),
 368         OUT_DAI(2),
 369         OUT_DAI(3),
 370         OUT_DAI(4),
 371         OUT_DAI(5),
 372 };
 373
 374 #define ADDER_CTRL_DECL(name, reg)                      \
 375         static const struct snd_kcontrol_new name[] = { \
 376                 SOC_DAPM_SINGLE("RX1", reg, 0, 1, 0),   \
 377                 SOC_DAPM_SINGLE("RX2", reg, 1, 1, 0),   \
 378                 SOC_DAPM_SINGLE("RX3", reg, 2, 1, 0),   \
 379                 SOC_DAPM_SINGLE("RX4", reg, 3, 1, 0),   \
 380                 SOC_DAPM_SINGLE("RX5", reg, 4, 1, 0),   \
 381                 SOC_DAPM_SINGLE("RX6", reg, 5, 1, 0),   \
 382                 SOC_DAPM_SINGLE("RX7", reg, 6, 1, 0),   \
 383                 SOC_DAPM_SINGLE("RX8", reg, 7, 1, 0),   \
 384                 SOC_DAPM_SINGLE("RX9", reg, 8, 1, 0),   \
 385                 SOC_DAPM_SINGLE("RX10", reg, 9, 1, 0),  \
 386         }
 387
 388 ADDER_CTRL_DECL(adder1, TEGRA210_MIXER_TX1_ADDER_CONFIG);
 389 ADDER_CTRL_DECL(adder2, TEGRA210_MIXER_TX2_ADDER_CONFIG);
 390 ADDER_CTRL_DECL(adder3, TEGRA210_MIXER_TX3_ADDER_CONFIG);
 391 ADDER_CTRL_DECL(adder4, TEGRA210_MIXER_TX4_ADDER_CONFIG);
 392 ADDER_CTRL_DECL(adder5, TEGRA210_MIXER_TX5_ADDER_CONFIG);
 393
 394 #define GAIN_CTRL(id)   \
 395         SOC_SINGLE_EXT("RX" #id " Gain Volume",                 \
 396                        MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0,    \
 397                        0x20000, 0, tegra210_mixer_get_gain,     \
 398                        tegra210_mixer_put_gain),                \
 399         SOC_SINGLE_EXT("RX" #id " Instant Gain Volume",         \
 400                        MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0,    \
 401                        0x20000, 0, tegra210_mixer_get_gain,     \
 402                        tegra210_mixer_put_instant_gain),
 403
 404 /* Volume controls for all MIXER inputs */
 405 static const struct snd_kcontrol_new tegra210_mixer_gain_ctls[] = {
 406         GAIN_CTRL(1)
 407         GAIN_CTRL(2)
 408         GAIN_CTRL(3)
 409         GAIN_CTRL(4)
 410         GAIN_CTRL(5)
 411         GAIN_CTRL(6)
 412         GAIN_CTRL(7)
 413         GAIN_CTRL(8)
 414         GAIN_CTRL(9)
 415         GAIN_CTRL(10)
 416 };
 417
 418 static const struct snd_soc_dapm_widget tegra210_mixer_widgets[] = {
 419         SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
 420         SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
 421         SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
 422         SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, SND_SOC_NOPM, 0, 0),
 423         SND_SOC_DAPM_AIF_IN("RX5", NULL, 0, SND_SOC_NOPM, 0, 0),
 424         SND_SOC_DAPM_AIF_IN("RX6", NULL, 0, SND_SOC_NOPM, 0, 0),
 425         SND_SOC_DAPM_AIF_IN("RX7", NULL, 0, SND_SOC_NOPM, 0, 0),
 426         SND_SOC_DAPM_AIF_IN("RX8", NULL, 0, SND_SOC_NOPM, 0, 0),
 427         SND_SOC_DAPM_AIF_IN("RX9", NULL, 0, SND_SOC_NOPM, 0, 0),
 428         SND_SOC_DAPM_AIF_IN("RX10", NULL, 0, SND_SOC_NOPM, 0, 0),
 429         SND_SOC_DAPM_AIF_OUT("TX1", NULL, 0, TEGRA210_MIXER_TX1_ENABLE, 0, 0),
 430         SND_SOC_DAPM_AIF_OUT("TX2", NULL, 0, TEGRA210_MIXER_TX2_ENABLE, 0, 0),
 431         SND_SOC_DAPM_AIF_OUT("TX3", NULL, 0, TEGRA210_MIXER_TX3_ENABLE, 0, 0),
 432         SND_SOC_DAPM_AIF_OUT("TX4", NULL, 0, TEGRA210_MIXER_TX4_ENABLE, 0, 0),
 433         SND_SOC_DAPM_AIF_OUT("TX5", NULL, 0, TEGRA210_MIXER_TX5_ENABLE, 0, 0),
 434         SND_SOC_DAPM_MIXER("Adder1", SND_SOC_NOPM, 1, 0, adder1,
 435                            ARRAY_SIZE(adder1)),
 436         SND_SOC_DAPM_MIXER("Adder2", SND_SOC_NOPM, 1, 0, adder2,
 437                            ARRAY_SIZE(adder2)),
 438         SND_SOC_DAPM_MIXER("Adder3", SND_SOC_NOPM, 1, 0, adder3,
 439                            ARRAY_SIZE(adder3)),
 440         SND_SOC_DAPM_MIXER("Adder4", SND_SOC_NOPM, 1, 0, adder4,
 441                            ARRAY_SIZE(adder4)),
 442         SND_SOC_DAPM_MIXER("Adder5", SND_SOC_NOPM, 1, 0, adder5,
 443                            ARRAY_SIZE(adder5)),
 444 };
 445
 446 #define RX_ROUTES(id, sname)                                               \
 447         { "RX" #id " XBAR-" sname,      NULL,   "RX" #id " XBAR-TX" },     \
 448         { "RX" #id "-CIF-" sname,       NULL,   "RX" #id " XBAR-" sname }, \
 449         { "RX" #id,                     NULL,   "RX" #id "-CIF-" sname }
 450
 451 #define MIXER_RX_ROUTES(id)             \
 452         RX_ROUTES(id, "Playback"),      \
 453         RX_ROUTES(id, "Capture")
 454
 455 #define ADDER_ROUTES(id, sname)                                           \
 456         { "Adder" #id,                  "RX1",  "RX1" },                  \
 457         { "Adder" #id,                  "RX2",  "RX2" },                  \
 458         { "Adder" #id,                  "RX3",  "RX3" },                  \
 459         { "Adder" #id,                  "RX4",  "RX4" },                  \
 460         { "Adder" #id,                  "RX5",  "RX5" },                  \
 461         { "Adder" #id,                  "RX6",  "RX6" },                  \
 462         { "Adder" #id,                  "RX7",  "RX7" },                  \
 463         { "Adder" #id,                  "RX8",  "RX8" },                  \
 464         { "Adder" #id,                  "RX9",  "RX9" },                  \
 465         { "Adder" #id,                  "RX10", "RX10" },                 \
 466         { "TX" #id,                     NULL,   "Adder" #id },            \
 467         { "TX" #id "-CIF-" sname,       NULL,   "TX" #id },               \
 468         { "TX" #id " XBAR-" sname,      NULL,   "TX" #id "-CIF-" sname }, \
 469         { "TX" #id " XBAR-RX",          NULL,   "TX" #id " XBAR-" sname } \
 470
 471 #define TX_ROUTES(id, sname)            \
 472         ADDER_ROUTES(1, sname),         \
 473         ADDER_ROUTES(2, sname),         \
 474         ADDER_ROUTES(3, sname),         \
 475         ADDER_ROUTES(4, sname),         \
 476         ADDER_ROUTES(5, sname)
 477
 478 #define MIXER_TX_ROUTES(id)             \
 479         TX_ROUTES(id, "Playback"),      \
 480         TX_ROUTES(id, "Capture")
 481
 482 static const struct snd_soc_dapm_route tegra210_mixer_routes[] = {
 483         /* Input */
 484         MIXER_RX_ROUTES(1),
 485         MIXER_RX_ROUTES(2),
 486         MIXER_RX_ROUTES(3),
 487         MIXER_RX_ROUTES(4),
 488         MIXER_RX_ROUTES(5),
 489         MIXER_RX_ROUTES(6),
 490         MIXER_RX_ROUTES(7),
 491         MIXER_RX_ROUTES(8),
 492         MIXER_RX_ROUTES(9),
 493         MIXER_RX_ROUTES(10),
 494         /* Output */
 495         MIXER_TX_ROUTES(1),
 496         MIXER_TX_ROUTES(2),
 497         MIXER_TX_ROUTES(3),
 498         MIXER_TX_ROUTES(4),
 499         MIXER_TX_ROUTES(5),
 500 };
 501
 502 static const struct snd_soc_component_driver tegra210_mixer_cmpnt = {
 503         .dapm_widgets           = tegra210_mixer_widgets,
 504         .num_dapm_widgets       = ARRAY_SIZE(tegra210_mixer_widgets),
 505         .dapm_routes            = tegra210_mixer_routes,
 506         .num_dapm_routes        = ARRAY_SIZE(tegra210_mixer_routes),
 507         .controls               = tegra210_mixer_gain_ctls,
 508         .num_controls           = ARRAY_SIZE(tegra210_mixer_gain_ctls),
 509 };
 510
 511 static bool tegra210_mixer_wr_reg(struct device *dev,
 512                                 unsigned int reg)
 513 {
 514         if (reg < TEGRA210_MIXER_RX_LIMIT)
 515                 reg = MIXER_REG_BASE(reg);
 516         else if (reg < TEGRA210_MIXER_TX_LIMIT)
 517                 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
 518
 519         switch (reg) {
 520         case TEGRA210_MIXER_RX1_SOFT_RESET:
 521         case TEGRA210_MIXER_RX1_CIF_CTRL ... TEGRA210_MIXER_RX1_PEAK_CTRL:
 522
 523         case TEGRA210_MIXER_TX1_ENABLE:
 524         case TEGRA210_MIXER_TX1_SOFT_RESET:
 525         case TEGRA210_MIXER_TX1_INT_MASK ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
 526
 527         case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CG:
 528         case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL ... TEGRA210_MIXER_CTRL:
 529                 return true;
 530         default:
 531                 return false;
 532         }
 533 }
 534
 535 static bool tegra210_mixer_rd_reg(struct device *dev,
 536                                 unsigned int reg)
 537 {
 538         if (reg < TEGRA210_MIXER_RX_LIMIT)
 539                 reg = MIXER_REG_BASE(reg);
 540         else if (reg < TEGRA210_MIXER_TX_LIMIT)
 541                 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
 542
 543         switch (reg) {
 544         case TEGRA210_MIXER_RX1_SOFT_RESET ... TEGRA210_MIXER_RX1_SAMPLE_COUNT:
 545         case TEGRA210_MIXER_TX1_ENABLE ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
 546         case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CTRL:
 547                 return true;
 548         default:
 549                 return false;
 550         }
 551 }
 552
 553 static bool tegra210_mixer_volatile_reg(struct device *dev,
 554                                 unsigned int reg)
 555 {
 556         if (reg < TEGRA210_MIXER_RX_LIMIT)
 557                 reg = MIXER_REG_BASE(reg);
 558         else if (reg < TEGRA210_MIXER_TX_LIMIT)
 559                 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
 560
 561         switch (reg) {
 562         case TEGRA210_MIXER_RX1_SOFT_RESET:
 563         case TEGRA210_MIXER_RX1_STATUS:
 564
 565         case TEGRA210_MIXER_TX1_SOFT_RESET:
 566         case TEGRA210_MIXER_TX1_STATUS:
 567         case TEGRA210_MIXER_TX1_INT_STATUS:
 568         case TEGRA210_MIXER_TX1_INT_SET:
 569
 570         case TEGRA210_MIXER_SOFT_RESET:
 571         case TEGRA210_MIXER_STATUS:
 572         case TEGRA210_MIXER_INT_STATUS:
 573         case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL:
 574         case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
 575         case TEGRA210_MIXER_PEAKM_RAM_CTRL:
 576         case TEGRA210_MIXER_PEAKM_RAM_DATA:
 577                 return true;
 578         default:
 579                 return false;
 580         }
 581 }
 582
 583 static bool tegra210_mixer_precious_reg(struct device *dev,
 584                                 unsigned int reg)
 585 {
 586         switch (reg) {
 587         case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
 588         case TEGRA210_MIXER_PEAKM_RAM_DATA:
 589                 return true;
 590         default:
 591                 return false;
 592         }
 593 }
 594
 595 static const struct regmap_config tegra210_mixer_regmap_config = {
 596         .reg_bits               = 32,
 597         .reg_stride             = 4,
 598         .val_bits               = 32,
 599         .max_register           = TEGRA210_MIXER_CTRL,
 600         .writeable_reg          = tegra210_mixer_wr_reg,
 601         .readable_reg           = tegra210_mixer_rd_reg,
 602         .volatile_reg           = tegra210_mixer_volatile_reg,
 603         .precious_reg           = tegra210_mixer_precious_reg,
 604         .reg_defaults           = tegra210_mixer_reg_defaults,
 605         .num_reg_defaults       = ARRAY_SIZE(tegra210_mixer_reg_defaults),
 606         .cache_type             = REGCACHE_FLAT,
 607 };
 608
 609 static const struct of_device_id tegra210_mixer_of_match[] = {
 610         { .compatible = "nvidia,tegra210-amixer" },
 611         {},
 612 };
 613 MODULE_DEVICE_TABLE(of, tegra210_mixer_of_match);
 614
 615 static int tegra210_mixer_platform_probe(struct platform_device *pdev)
 616 {
 617         struct device *dev = &pdev->dev;
 618         struct tegra210_mixer *mixer;
 619         void __iomem *regs;
 620         int err, i;
 621
 622         mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);
 623         if (!mixer)
 624                 return -ENOMEM;
 625
 626         dev_set_drvdata(dev, mixer);
 627
 628         /* Use default gain value for all MIXER inputs */
 629         for (i = 0; i < TEGRA210_MIXER_RX_MAX; i++)
 630                 mixer->gain_value[i] = gain_params.gain_value;
 631
 632         regs = devm_platform_ioremap_resource(pdev, 0);
 633         if (IS_ERR(regs))
 634                 return PTR_ERR(regs);
 635
 636         mixer->regmap = devm_regmap_init_mmio(dev, regs,
 637                                               &tegra210_mixer_regmap_config);
 638         if (IS_ERR(mixer->regmap)) {
 639                 dev_err(dev, "regmap init failed\n");
 640                 return PTR_ERR(mixer->regmap);
 641         }
 642
 643         regcache_cache_only(mixer->regmap, true);
 644
 645         err = devm_snd_soc_register_component(dev, &tegra210_mixer_cmpnt,
 646                                               tegra210_mixer_dais,
 647                                               ARRAY_SIZE(tegra210_mixer_dais));
 648         if (err) {
 649                 dev_err(dev, "can't register MIXER component, err: %d\n", err);
 650                 return err;
 651         }
 652
 653         pm_runtime_enable(dev);
 654
 655         return 0;
 656 }
 657
 658 static void tegra210_mixer_platform_remove(struct platform_device *pdev)
 659 {
 660         pm_runtime_disable(&pdev->dev);
 661 }
 662
 663 static const struct dev_pm_ops tegra210_mixer_pm_ops = {
 664         SET_RUNTIME_PM_OPS(tegra210_mixer_runtime_suspend,
 665                            tegra210_mixer_runtime_resume, NULL)
 666         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
 667                                 pm_runtime_force_resume)
 668 };
 669
 670 static struct platform_driver tegra210_mixer_driver = {
 671         .driver = {
 672                 .name = "tegra210_mixer",
 673                 .of_match_table = tegra210_mixer_of_match,
 674                 .pm = &tegra210_mixer_pm_ops,
 675         },
 676         .probe = tegra210_mixer_platform_probe,
 677         .remove_new = tegra210_mixer_platform_remove,
 678 };
 679 module_platform_driver(tegra210_mixer_driver);
 680
 681 MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>");
 682 MODULE_DESCRIPTION("Tegra210 MIXER ASoC driver");
 683 MODULE_LICENSE("GPL v2");