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 25000000
  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_HEADPHONE | SND_JACK_MICROPHONE |
  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_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->i2s_instance = I2S_SP_INSTANCE;
 154        machine->capture_channel = CAP_CHANNEL1;
 155        return da7219_clk_enable(substream);
 156}
 157
 158static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 159{
 160        da7219_clk_disable();
 161}
 162
 163static int cz_max_startup(struct snd_pcm_substream *substream)
 164{
 165        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 166        struct snd_soc_card *card = rtd->card;
 167        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 168
 169        machine->i2s_instance = I2S_BT_INSTANCE;
 170        return da7219_clk_enable(substream);
 171}
 172
 173static void cz_max_shutdown(struct snd_pcm_substream *substream)
 174{
 175        da7219_clk_disable();
 176}
 177
 178static int cz_dmic0_startup(struct snd_pcm_substream *substream)
 179{
 180        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 181        struct snd_soc_card *card = rtd->card;
 182        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 183
 184        machine->i2s_instance = I2S_BT_INSTANCE;
 185        return da7219_clk_enable(substream);
 186}
 187
 188static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 189{
 190        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 191        struct snd_soc_card *card = rtd->card;
 192        struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 193
 194        machine->i2s_instance = I2S_SP_INSTANCE;
 195        machine->capture_channel = CAP_CHANNEL0;
 196        return da7219_clk_enable(substream);
 197}
 198
 199static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
 200{
 201        da7219_clk_disable();
 202}
 203
 204static const struct snd_soc_ops cz_da7219_cap_ops = {
 205        .startup = cz_da7219_startup,
 206        .shutdown = cz_da7219_shutdown,
 207};
 208
 209static const struct snd_soc_ops cz_max_play_ops = {
 210        .startup = cz_max_startup,
 211        .shutdown = cz_max_shutdown,
 212};
 213
 214static const struct snd_soc_ops cz_dmic0_cap_ops = {
 215        .startup = cz_dmic0_startup,
 216        .shutdown = cz_dmic_shutdown,
 217};
 218
 219static const struct snd_soc_ops cz_dmic1_cap_ops = {
 220        .startup = cz_dmic1_startup,
 221        .shutdown = cz_dmic_shutdown,
 222};
 223
 224static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 225        {
 226                .name = "amd-da7219-play",
 227                .stream_name = "Playback",
 228                .platform_name = "acp_audio_dma.0.auto",
 229                .cpu_dai_name = "designware-i2s.1.auto",
 230                .codec_dai_name = "da7219-hifi",
 231                .codec_name = "i2c-DLGS7219:00",
 232                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 233                                | SND_SOC_DAIFMT_CBM_CFM,
 234                .init = cz_da7219_init,
 235                .dpcm_playback = 1,
 236                .ops = &cz_da7219_cap_ops,
 237        },
 238        {
 239                .name = "amd-da7219-cap",
 240                .stream_name = "Capture",
 241                .platform_name = "acp_audio_dma.0.auto",
 242                .cpu_dai_name = "designware-i2s.2.auto",
 243                .codec_dai_name = "da7219-hifi",
 244                .codec_name = "i2c-DLGS7219:00",
 245                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 246                                | SND_SOC_DAIFMT_CBM_CFM,
 247                .dpcm_capture = 1,
 248                .ops = &cz_da7219_cap_ops,
 249        },
 250        {
 251                .name = "amd-max98357-play",
 252                .stream_name = "HiFi Playback",
 253                .platform_name = "acp_audio_dma.0.auto",
 254                .cpu_dai_name = "designware-i2s.3.auto",
 255                .codec_dai_name = "HiFi",
 256                .codec_name = "MX98357A:00",
 257                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 258                                | SND_SOC_DAIFMT_CBM_CFM,
 259                .dpcm_playback = 1,
 260                .ops = &cz_max_play_ops,
 261        },
 262        {
 263                /* C panel DMIC */
 264                .name = "dmic0",
 265                .stream_name = "DMIC0 Capture",
 266                .platform_name = "acp_audio_dma.0.auto",
 267                .cpu_dai_name = "designware-i2s.3.auto",
 268                .codec_dai_name = "adau7002-hifi",
 269                .codec_name = "ADAU7002:00",
 270                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 271                                | SND_SOC_DAIFMT_CBM_CFM,
 272                .dpcm_capture = 1,
 273                .ops = &cz_dmic0_cap_ops,
 274        },
 275        {
 276                /* A/B panel DMIC */
 277                .name = "dmic1",
 278                .stream_name = "DMIC1 Capture",
 279                .platform_name = "acp_audio_dma.0.auto",
 280                .cpu_dai_name = "designware-i2s.2.auto",
 281                .codec_dai_name = "adau7002-hifi",
 282                .codec_name = "ADAU7002:00",
 283                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 284                                | SND_SOC_DAIFMT_CBM_CFM,
 285                .dpcm_capture = 1,
 286                .ops = &cz_dmic1_cap_ops,
 287        },
 288};
 289
 290static const struct snd_soc_dapm_widget cz_widgets[] = {
 291        SND_SOC_DAPM_HP("Headphones", NULL),
 292        SND_SOC_DAPM_SPK("Speakers", NULL),
 293        SND_SOC_DAPM_MIC("Headset Mic", NULL),
 294        SND_SOC_DAPM_MIC("Int Mic", NULL),
 295};
 296
 297static const struct snd_soc_dapm_route cz_audio_route[] = {
 298        {"Headphones", NULL, "HPL"},
 299        {"Headphones", NULL, "HPR"},
 300        {"MIC", NULL, "Headset Mic"},
 301        {"Speakers", NULL, "Speaker"},
 302        {"PDM_DAT", NULL, "Int Mic"},
 303};
 304
 305static const struct snd_kcontrol_new cz_mc_controls[] = {
 306        SOC_DAPM_PIN_SWITCH("Headphones"),
 307        SOC_DAPM_PIN_SWITCH("Speakers"),
 308        SOC_DAPM_PIN_SWITCH("Headset Mic"),
 309        SOC_DAPM_PIN_SWITCH("Int Mic"),
 310};
 311
 312static struct snd_soc_card cz_card = {
 313        .name = "acpd7219m98357",
 314        .owner = THIS_MODULE,
 315        .dai_link = cz_dai_7219_98357,
 316        .num_links = ARRAY_SIZE(cz_dai_7219_98357),
 317        .dapm_widgets = cz_widgets,
 318        .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 319        .dapm_routes = cz_audio_route,
 320        .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 321        .controls = cz_mc_controls,
 322        .num_controls = ARRAY_SIZE(cz_mc_controls),
 323};
 324
 325static struct regulator_consumer_supply acp_da7219_supplies[] = {
 326        REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
 327        REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
 328        REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
 329        REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
 330};
 331
 332static struct regulator_init_data acp_da7219_data = {
 333        .constraints = {
 334                .always_on = 1,
 335        },
 336        .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
 337        .consumer_supplies = acp_da7219_supplies,
 338};
 339
 340static struct regulator_config acp_da7219_cfg = {
 341        .init_data = &acp_da7219_data,
 342};
 343
 344static struct regulator_ops acp_da7219_ops = {
 345};
 346
 347static struct regulator_desc acp_da7219_desc = {
 348        .name = "reg-fixed-1.8V",
 349        .type = REGULATOR_VOLTAGE,
 350        .owner = THIS_MODULE,
 351        .ops = &acp_da7219_ops,
 352        .fixed_uV = 1800000, /* 1.8V */
 353        .n_voltages = 1,
 354};
 355
 356static int cz_probe(struct platform_device *pdev)
 357{
 358        int ret;
 359        struct snd_soc_card *card;
 360        struct acp_platform_info *machine;
 361        struct regulator_dev *rdev;
 362
 363        acp_da7219_cfg.dev = &pdev->dev;
 364        rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
 365                                       &acp_da7219_cfg);
 366        if (IS_ERR(rdev)) {
 367                dev_err(&pdev->dev, "Failed to register regulator: %d\n",
 368                        (int)PTR_ERR(rdev));
 369                return -EINVAL;
 370        }
 371
 372        machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 373                               GFP_KERNEL);
 374        if (!machine)
 375                return -ENOMEM;
 376        card = &cz_card;
 377        cz_card.dev = &pdev->dev;
 378        platform_set_drvdata(pdev, card);
 379        snd_soc_card_set_drvdata(card, machine);
 380        ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 381        if (ret) {
 382                dev_err(&pdev->dev,
 383                                "devm_snd_soc_register_card(%s) failed: %d\n",
 384                                cz_card.name, ret);
 385                return ret;
 386        }
 387        bt_uart_enable = !device_property_read_bool(&pdev->dev,
 388                                                    "bt-pad-enable");
 389        return 0;
 390}
 391
 392static const struct acpi_device_id cz_audio_acpi_match[] = {
 393        { "AMD7219", 0 },
 394        {},
 395};
 396MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
 397
 398static struct platform_driver cz_pcm_driver = {
 399        .driver = {
 400                .name = "cz-da7219-max98357a",
 401                .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 402                .pm = &snd_soc_pm_ops,
 403        },
 404        .probe = cz_probe,
 405};
 406
 407module_platform_driver(cz_pcm_driver);
 408
 409MODULE_AUTHOR("akshu.agrawal@amd.com");
 410MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 411MODULE_LICENSE("GPL v2");
 412