linux/sound/soc/amd/acp-da7219-max98357a.c
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   1/*
   2 * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
   3 *
   4 * Copyright 2017 Advanced Micro Devices, Inc.
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a
   7 * copy of this software and associated documentation files (the "Software"),
   8 * to deal in the Software without restriction, including without limitation
   9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 * and/or sell copies of the Software, and to permit persons to whom the
  11 * Software is furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22 * OTHER DEALINGS IN THE SOFTWARE.
  23 *
  24 */
  25
  26#include <sound/core.h>
  27#include <sound/soc.h>
  28#include <sound/pcm.h>
  29#include <sound/pcm_params.h>
  30#include <sound/soc-dapm.h>
  31#include <sound/jack.h>
  32#include <linux/clk.h>
  33#include <linux/gpio.h>
  34#include <linux/module.h>
  35#include <linux/regulator/machine.h>
  36#include <linux/regulator/driver.h>
  37#include <linux/i2c.h>
  38#include <linux/input.h>
  39#include <linux/acpi.h>
  40
  41#include "acp.h"
  42#include "../codecs/da7219.h"
  43#include "../codecs/da7219-aad.h"
  44
  45#define CZ_PLAT_CLK 48000000
  46#define DUAL_CHANNEL            2
  47
  48static struct snd_soc_jack cz_jack;
  49static struct clk *da7219_dai_clk;
  50extern int bt_uart_enable;
  51
  52static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
  53{
  54        int ret;
  55        struct snd_soc_card *card = rtd->card;
  56        struct snd_soc_dai *codec_dai = rtd->codec_dai;
  57        struct snd_soc_component *component = codec_dai->component;
  58
  59        dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
  60
  61        ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
  62                                     CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
  63        if (ret < 0) {
  64                dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  65                return ret;
  66        }
  67
  68        ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
  69                                  CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
  70        if (ret < 0) {
  71                dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
  72                return ret;
  73        }
  74
  75        da7219_dai_clk = clk_get(component->dev, "da7219-dai-clks");
  76
  77        ret = snd_soc_card_jack_new(card, "Headset Jack",
  78                                SND_JACK_HEADSET | SND_JACK_LINEOUT |
  79                                SND_JACK_BTN_0 | SND_JACK_BTN_1 |
  80                                SND_JACK_BTN_2 | SND_JACK_BTN_3,
  81                                &cz_jack, NULL, 0);
  82        if (ret) {
  83                dev_err(card->dev, "HP jack creation failed %d\n", ret);
  84                return ret;
  85        }
  86
  87        snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  88        snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  89        snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  90        snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  91
  92        da7219_aad_jack_det(component, &cz_jack);
  93
  94        return 0;
  95}
  96
  97static int da7219_clk_enable(struct snd_pcm_substream *substream)
  98{
  99        int ret = 0;
 100        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 101
 102        ret = clk_prepare_enable(da7219_dai_clk);
 103        if (ret < 0) {
 104                dev_err(rtd->dev, "can't enable master clock %d\n", ret);
 105                return ret;
 106        }
 107
 108        return ret;
 109}
 110
 111static void da7219_clk_disable(void)
 112{
 113        clk_disable_unprepare(da7219_dai_clk);
 114}
 115
 116static const unsigned int channels[] = {
 117        DUAL_CHANNEL,
 118};
 119
 120static const unsigned int rates[] = {
 121        48000,
 122};
 123
 124static const struct snd_pcm_hw_constraint_list constraints_rates = {
 125        .count = ARRAY_SIZE(rates),
 126        .list  = rates,
 127        .mask = 0,
 128};
 129
 130static const struct snd_pcm_hw_constraint_list constraints_channels = {
 131        .count = ARRAY_SIZE(channels),
 132        .list = channels,
 133        .mask = 0,
 134};
 135
 136static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
 137{
 138        struct snd_pcm_runtime *runtime = substream->runtime;
 139        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 140        struct snd_soc_card *card = rtd->card;
 141        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 142
 143        /*
 144         * On this platform for PCM device we support stereo
 145         */
 146
 147        runtime->hw.channels_max = DUAL_CHANNEL;
 148        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 149                                   &constraints_channels);
 150        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 151                                   &constraints_rates);
 152
 153        machine->play_i2s_instance = I2S_SP_INSTANCE;
 154        return da7219_clk_enable(substream);
 155}
 156
 157static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
 158{
 159        struct snd_pcm_runtime *runtime = substream->runtime;
 160        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 161        struct snd_soc_card *card = rtd->card;
 162        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 163
 164        /*
 165         * On this platform for PCM device we support stereo
 166         */
 167
 168        runtime->hw.channels_max = DUAL_CHANNEL;
 169        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 170                                   &constraints_channels);
 171        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 172                                   &constraints_rates);
 173
 174        machine->cap_i2s_instance = I2S_SP_INSTANCE;
 175        machine->capture_channel = CAP_CHANNEL1;
 176        return da7219_clk_enable(substream);
 177}
 178
 179static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 180{
 181        da7219_clk_disable();
 182}
 183
 184static int cz_max_startup(struct snd_pcm_substream *substream)
 185{
 186        struct snd_pcm_runtime *runtime = substream->runtime;
 187        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 188        struct snd_soc_card *card = rtd->card;
 189        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 190
 191        /*
 192         * On this platform for PCM device we support stereo
 193         */
 194
 195        runtime->hw.channels_max = DUAL_CHANNEL;
 196        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 197                                   &constraints_channels);
 198        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 199                                   &constraints_rates);
 200
 201        machine->play_i2s_instance = I2S_BT_INSTANCE;
 202        return da7219_clk_enable(substream);
 203}
 204
 205static void cz_max_shutdown(struct snd_pcm_substream *substream)
 206{
 207        da7219_clk_disable();
 208}
 209
 210static int cz_dmic0_startup(struct snd_pcm_substream *substream)
 211{
 212        struct snd_pcm_runtime *runtime = substream->runtime;
 213        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 214        struct snd_soc_card *card = rtd->card;
 215        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 216
 217        /*
 218         * On this platform for PCM device we support stereo
 219         */
 220
 221        runtime->hw.channels_max = DUAL_CHANNEL;
 222        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 223                                   &constraints_channels);
 224        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 225                                   &constraints_rates);
 226
 227        machine->cap_i2s_instance = I2S_BT_INSTANCE;
 228        return da7219_clk_enable(substream);
 229}
 230
 231static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 232{
 233        struct snd_pcm_runtime *runtime = substream->runtime;
 234        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 235        struct snd_soc_card *card = rtd->card;
 236        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 237
 238        /*
 239         * On this platform for PCM device we support stereo
 240         */
 241
 242        runtime->hw.channels_max = DUAL_CHANNEL;
 243        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 244                                   &constraints_channels);
 245        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 246                                   &constraints_rates);
 247
 248        machine->cap_i2s_instance = I2S_SP_INSTANCE;
 249        machine->capture_channel = CAP_CHANNEL0;
 250        return da7219_clk_enable(substream);
 251}
 252
 253static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
 254{
 255        da7219_clk_disable();
 256}
 257
 258static const struct snd_soc_ops cz_da7219_play_ops = {
 259        .startup = cz_da7219_play_startup,
 260        .shutdown = cz_da7219_shutdown,
 261};
 262
 263static const struct snd_soc_ops cz_da7219_cap_ops = {
 264        .startup = cz_da7219_cap_startup,
 265        .shutdown = cz_da7219_shutdown,
 266};
 267
 268static const struct snd_soc_ops cz_max_play_ops = {
 269        .startup = cz_max_startup,
 270        .shutdown = cz_max_shutdown,
 271};
 272
 273static const struct snd_soc_ops cz_dmic0_cap_ops = {
 274        .startup = cz_dmic0_startup,
 275        .shutdown = cz_dmic_shutdown,
 276};
 277
 278static const struct snd_soc_ops cz_dmic1_cap_ops = {
 279        .startup = cz_dmic1_startup,
 280        .shutdown = cz_dmic_shutdown,
 281};
 282
 283static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 284        {
 285                .name = "amd-da7219-play",
 286                .stream_name = "Playback",
 287                .platform_name = "acp_audio_dma.0.auto",
 288                .cpu_dai_name = "designware-i2s.1.auto",
 289                .codec_dai_name = "da7219-hifi",
 290                .codec_name = "i2c-DLGS7219:00",
 291                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 292                                | SND_SOC_DAIFMT_CBM_CFM,
 293                .init = cz_da7219_init,
 294                .dpcm_playback = 1,
 295                .ops = &cz_da7219_play_ops,
 296        },
 297        {
 298                .name = "amd-da7219-cap",
 299                .stream_name = "Capture",
 300                .platform_name = "acp_audio_dma.0.auto",
 301                .cpu_dai_name = "designware-i2s.2.auto",
 302                .codec_dai_name = "da7219-hifi",
 303                .codec_name = "i2c-DLGS7219:00",
 304                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 305                                | SND_SOC_DAIFMT_CBM_CFM,
 306                .dpcm_capture = 1,
 307                .ops = &cz_da7219_cap_ops,
 308        },
 309        {
 310                .name = "amd-max98357-play",
 311                .stream_name = "HiFi Playback",
 312                .platform_name = "acp_audio_dma.0.auto",
 313                .cpu_dai_name = "designware-i2s.3.auto",
 314                .codec_dai_name = "HiFi",
 315                .codec_name = "MX98357A:00",
 316                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 317                                | SND_SOC_DAIFMT_CBM_CFM,
 318                .dpcm_playback = 1,
 319                .ops = &cz_max_play_ops,
 320        },
 321        {
 322                /* C panel DMIC */
 323                .name = "dmic0",
 324                .stream_name = "DMIC0 Capture",
 325                .platform_name = "acp_audio_dma.0.auto",
 326                .cpu_dai_name = "designware-i2s.3.auto",
 327                .codec_dai_name = "adau7002-hifi",
 328                .codec_name = "ADAU7002:00",
 329                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 330                                | SND_SOC_DAIFMT_CBM_CFM,
 331                .dpcm_capture = 1,
 332                .ops = &cz_dmic0_cap_ops,
 333        },
 334        {
 335                /* A/B panel DMIC */
 336                .name = "dmic1",
 337                .stream_name = "DMIC1 Capture",
 338                .platform_name = "acp_audio_dma.0.auto",
 339                .cpu_dai_name = "designware-i2s.2.auto",
 340                .codec_dai_name = "adau7002-hifi",
 341                .codec_name = "ADAU7002:00",
 342                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 343                                | SND_SOC_DAIFMT_CBM_CFM,
 344                .dpcm_capture = 1,
 345                .ops = &cz_dmic1_cap_ops,
 346        },
 347};
 348
 349static const struct snd_soc_dapm_widget cz_widgets[] = {
 350        SND_SOC_DAPM_HP("Headphones", NULL),
 351        SND_SOC_DAPM_SPK("Speakers", NULL),
 352        SND_SOC_DAPM_MIC("Headset Mic", NULL),
 353        SND_SOC_DAPM_MIC("Int Mic", NULL),
 354};
 355
 356static const struct snd_soc_dapm_route cz_audio_route[] = {
 357        {"Headphones", NULL, "HPL"},
 358        {"Headphones", NULL, "HPR"},
 359        {"MIC", NULL, "Headset Mic"},
 360        {"Speakers", NULL, "Speaker"},
 361        {"PDM_DAT", NULL, "Int Mic"},
 362};
 363
 364static const struct snd_kcontrol_new cz_mc_controls[] = {
 365        SOC_DAPM_PIN_SWITCH("Headphones"),
 366        SOC_DAPM_PIN_SWITCH("Speakers"),
 367        SOC_DAPM_PIN_SWITCH("Headset Mic"),
 368        SOC_DAPM_PIN_SWITCH("Int Mic"),
 369};
 370
 371static struct snd_soc_card cz_card = {
 372        .name = "acpd7219m98357",
 373        .owner = THIS_MODULE,
 374        .dai_link = cz_dai_7219_98357,
 375        .num_links = ARRAY_SIZE(cz_dai_7219_98357),
 376        .dapm_widgets = cz_widgets,
 377        .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 378        .dapm_routes = cz_audio_route,
 379        .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 380        .controls = cz_mc_controls,
 381        .num_controls = ARRAY_SIZE(cz_mc_controls),
 382};
 383
 384static struct regulator_consumer_supply acp_da7219_supplies[] = {
 385        REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
 386        REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
 387        REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
 388        REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
 389};
 390
 391static struct regulator_init_data acp_da7219_data = {
 392        .constraints = {
 393                .always_on = 1,
 394        },
 395        .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
 396        .consumer_supplies = acp_da7219_supplies,
 397};
 398
 399static struct regulator_config acp_da7219_cfg = {
 400        .init_data = &acp_da7219_data,
 401};
 402
 403static struct regulator_ops acp_da7219_ops = {
 404};
 405
 406static const struct regulator_desc acp_da7219_desc = {
 407        .name = "reg-fixed-1.8V",
 408        .type = REGULATOR_VOLTAGE,
 409        .owner = THIS_MODULE,
 410        .ops = &acp_da7219_ops,
 411        .fixed_uV = 1800000, /* 1.8V */
 412        .n_voltages = 1,
 413};
 414
 415static int cz_probe(struct platform_device *pdev)
 416{
 417        int ret;
 418        struct snd_soc_card *card;
 419        struct acp_platform_info *machine;
 420        struct regulator_dev *rdev;
 421
 422        acp_da7219_cfg.dev = &pdev->dev;
 423        rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
 424                                       &acp_da7219_cfg);
 425        if (IS_ERR(rdev)) {
 426                dev_err(&pdev->dev, "Failed to register regulator: %d\n",
 427                        (int)PTR_ERR(rdev));
 428                return -EINVAL;
 429        }
 430
 431        machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 432                               GFP_KERNEL);
 433        if (!machine)
 434                return -ENOMEM;
 435        card = &cz_card;
 436        cz_card.dev = &pdev->dev;
 437        platform_set_drvdata(pdev, card);
 438        snd_soc_card_set_drvdata(card, machine);
 439        ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 440        if (ret) {
 441                dev_err(&pdev->dev,
 442                                "devm_snd_soc_register_card(%s) failed: %d\n",
 443                                cz_card.name, ret);
 444                return ret;
 445        }
 446        bt_uart_enable = !device_property_read_bool(&pdev->dev,
 447                                                    "bt-pad-enable");
 448        return 0;
 449}
 450
 451static const struct acpi_device_id cz_audio_acpi_match[] = {
 452        { "AMD7219", 0 },
 453        {},
 454};
 455MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
 456
 457static struct platform_driver cz_pcm_driver = {
 458        .driver = {
 459                .name = "cz-da7219-max98357a",
 460                .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 461                .pm = &snd_soc_pm_ops,
 462        },
 463        .probe = cz_probe,
 464};
 465
 466module_platform_driver(cz_pcm_driver);
 467
 468MODULE_AUTHOR("akshu.agrawal@amd.com");
 469MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 470MODULE_LICENSE("GPL v2");
 471