linux/sound/soc/samsung/bells.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// Bells audio support
   4//
   5// Copyright 2012 Wolfson Microelectronics
   6
   7#include <sound/soc.h>
   8#include <sound/soc-dapm.h>
   9#include <sound/jack.h>
  10#include <linux/gpio.h>
  11#include <linux/module.h>
  12
  13#include "../codecs/wm5102.h"
  14#include "../codecs/wm9081.h"
  15
  16/* BCLK2 is fixed at this currently */
  17#define BCLK2_RATE (64 * 8000)
  18
  19/*
  20 * Expect a 24.576MHz crystal if one is fitted (the driver will function
  21 * if this is not fitted).
  22 */
  23#define MCLK_RATE 24576000
  24
  25#define SYS_AUDIO_RATE 44100
  26#define SYS_MCLK_RATE  (SYS_AUDIO_RATE * 512)
  27
  28#define DAI_AP_DSP    0
  29#define DAI_DSP_CODEC 1
  30#define DAI_CODEC_CP  2
  31#define DAI_CODEC_SUB 3
  32
  33struct bells_drvdata {
  34        int sysclk_rate;
  35        int asyncclk_rate;
  36};
  37
  38static struct bells_drvdata wm2200_drvdata = {
  39        .sysclk_rate = 22579200,
  40};
  41
  42static struct bells_drvdata wm5102_drvdata = {
  43        .sysclk_rate = 45158400,
  44        .asyncclk_rate = 49152000,
  45};
  46
  47static struct bells_drvdata wm5110_drvdata = {
  48        .sysclk_rate = 135475200,
  49        .asyncclk_rate = 147456000,
  50};
  51
  52static int bells_set_bias_level(struct snd_soc_card *card,
  53                                struct snd_soc_dapm_context *dapm,
  54                                enum snd_soc_bias_level level)
  55{
  56        struct snd_soc_pcm_runtime *rtd;
  57        struct snd_soc_dai *codec_dai;
  58        struct snd_soc_component *component;
  59        struct bells_drvdata *bells = card->drvdata;
  60        int ret;
  61
  62        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
  63        codec_dai = rtd->codec_dai;
  64        component = codec_dai->component;
  65
  66        if (dapm->dev != codec_dai->dev)
  67                return 0;
  68
  69        switch (level) {
  70        case SND_SOC_BIAS_PREPARE:
  71                if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
  72                        break;
  73
  74                ret = snd_soc_component_set_pll(component, WM5102_FLL1,
  75                                            ARIZONA_FLL_SRC_MCLK1,
  76                                            MCLK_RATE,
  77                                            bells->sysclk_rate);
  78                if (ret < 0)
  79                        pr_err("Failed to start FLL: %d\n", ret);
  80
  81                if (bells->asyncclk_rate) {
  82                        ret = snd_soc_component_set_pll(component, WM5102_FLL2,
  83                                                    ARIZONA_FLL_SRC_AIF2BCLK,
  84                                                    BCLK2_RATE,
  85                                                    bells->asyncclk_rate);
  86                        if (ret < 0)
  87                                pr_err("Failed to start FLL: %d\n", ret);
  88                }
  89                break;
  90
  91        default:
  92                break;
  93        }
  94
  95        return 0;
  96}
  97
  98static int bells_set_bias_level_post(struct snd_soc_card *card,
  99                                     struct snd_soc_dapm_context *dapm,
 100                                     enum snd_soc_bias_level level)
 101{
 102        struct snd_soc_pcm_runtime *rtd;
 103        struct snd_soc_dai *codec_dai;
 104        struct snd_soc_component *component;
 105        struct bells_drvdata *bells = card->drvdata;
 106        int ret;
 107
 108        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
 109        codec_dai = rtd->codec_dai;
 110        component = codec_dai->component;
 111
 112        if (dapm->dev != codec_dai->dev)
 113                return 0;
 114
 115        switch (level) {
 116        case SND_SOC_BIAS_STANDBY:
 117                ret = snd_soc_component_set_pll(component, WM5102_FLL1, 0, 0, 0);
 118                if (ret < 0) {
 119                        pr_err("Failed to stop FLL: %d\n", ret);
 120                        return ret;
 121                }
 122
 123                if (bells->asyncclk_rate) {
 124                        ret = snd_soc_component_set_pll(component, WM5102_FLL2,
 125                                                    0, 0, 0);
 126                        if (ret < 0) {
 127                                pr_err("Failed to stop FLL: %d\n", ret);
 128                                return ret;
 129                        }
 130                }
 131                break;
 132
 133        default:
 134                break;
 135        }
 136
 137        dapm->bias_level = level;
 138
 139        return 0;
 140}
 141
 142static int bells_late_probe(struct snd_soc_card *card)
 143{
 144        struct bells_drvdata *bells = card->drvdata;
 145        struct snd_soc_pcm_runtime *rtd;
 146        struct snd_soc_component *wm0010;
 147        struct snd_soc_component *component;
 148        struct snd_soc_dai *aif1_dai;
 149        struct snd_soc_dai *aif2_dai;
 150        struct snd_soc_dai *aif3_dai;
 151        struct snd_soc_dai *wm9081_dai;
 152        int ret;
 153
 154        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_AP_DSP].name);
 155        wm0010 = rtd->codec_dai->component;
 156
 157        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
 158        component = rtd->codec_dai->component;
 159        aif1_dai = rtd->codec_dai;
 160
 161        ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK,
 162                                       ARIZONA_CLK_SRC_FLL1,
 163                                       bells->sysclk_rate,
 164                                       SND_SOC_CLOCK_IN);
 165        if (ret != 0) {
 166                dev_err(component->dev, "Failed to set SYSCLK: %d\n", ret);
 167                return ret;
 168        }
 169
 170        ret = snd_soc_component_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
 171        if (ret != 0) {
 172                dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
 173                return ret;
 174        }
 175
 176        ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 177        if (ret != 0)
 178                dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
 179
 180        ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_OPCLK, 0,
 181                                       SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
 182        if (ret != 0)
 183                dev_err(component->dev, "Failed to set OPCLK: %d\n", ret);
 184
 185        if (card->num_rtd == DAI_CODEC_CP)
 186                return 0;
 187
 188        ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_ASYNCCLK,
 189                                       ARIZONA_CLK_SRC_FLL2,
 190                                       bells->asyncclk_rate,
 191                                       SND_SOC_CLOCK_IN);
 192        if (ret != 0) {
 193                dev_err(component->dev, "Failed to set ASYNCCLK: %d\n", ret);
 194                return ret;
 195        }
 196
 197        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_CP].name);
 198        aif2_dai = rtd->cpu_dai;
 199
 200        ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
 201        if (ret != 0) {
 202                dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
 203                return ret;
 204        }
 205
 206        if (card->num_rtd == DAI_CODEC_SUB)
 207                return 0;
 208
 209        rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_SUB].name);
 210        aif3_dai = rtd->cpu_dai;
 211        wm9081_dai = rtd->codec_dai;
 212
 213        ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 214        if (ret != 0) {
 215                dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
 216                return ret;
 217        }
 218
 219        ret = snd_soc_component_set_sysclk(wm9081_dai->component, WM9081_SYSCLK_MCLK,
 220                                       0, SYS_MCLK_RATE, 0);
 221        if (ret != 0) {
 222                dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
 223                return ret;
 224        }
 225
 226        return 0;
 227}
 228
 229static const struct snd_soc_pcm_stream baseband_params = {
 230        .formats = SNDRV_PCM_FMTBIT_S32_LE,
 231        .rate_min = 8000,
 232        .rate_max = 8000,
 233        .channels_min = 2,
 234        .channels_max = 2,
 235};
 236
 237static const struct snd_soc_pcm_stream sub_params = {
 238        .formats = SNDRV_PCM_FMTBIT_S32_LE,
 239        .rate_min = SYS_AUDIO_RATE,
 240        .rate_max = SYS_AUDIO_RATE,
 241        .channels_min = 2,
 242        .channels_max = 2,
 243};
 244
 245SND_SOC_DAILINK_DEFS(wm2200_cpu_dsp,
 246        DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
 247        DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
 248        DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
 249
 250SND_SOC_DAILINK_DEFS(wm2200_dsp_codec,
 251        DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
 252        DAILINK_COMP_ARRAY(COMP_CODEC("wm2200.1-003a", "wm2200")));
 253
 254static struct snd_soc_dai_link bells_dai_wm2200[] = {
 255        {
 256                .name = "CPU-DSP",
 257                .stream_name = "CPU-DSP",
 258                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 259                                | SND_SOC_DAIFMT_CBM_CFM,
 260                SND_SOC_DAILINK_REG(wm2200_cpu_dsp),
 261        },
 262        {
 263                .name = "DSP-CODEC",
 264                .stream_name = "DSP-CODEC",
 265                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 266                                | SND_SOC_DAIFMT_CBM_CFM,
 267                .params = &sub_params,
 268                .ignore_suspend = 1,
 269                SND_SOC_DAILINK_REG(wm2200_dsp_codec),
 270        },
 271};
 272
 273SND_SOC_DAILINK_DEFS(wm5102_cpu_dsp,
 274        DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
 275        DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
 276        DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
 277
 278SND_SOC_DAILINK_DEFS(wm5102_dsp_codec,
 279        DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
 280        DAILINK_COMP_ARRAY(COMP_CODEC("wm5102-codec", "wm5102-aif1")));
 281
 282SND_SOC_DAILINK_DEFS(wm5102_baseband,
 283        DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif2")),
 284        DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
 285
 286SND_SOC_DAILINK_DEFS(wm5102_sub,
 287        DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif3")),
 288        DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
 289
 290static struct snd_soc_dai_link bells_dai_wm5102[] = {
 291        {
 292                .name = "CPU-DSP",
 293                .stream_name = "CPU-DSP",
 294                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 295                                | SND_SOC_DAIFMT_CBM_CFM,
 296                SND_SOC_DAILINK_REG(wm5102_cpu_dsp),
 297        },
 298        {
 299                .name = "DSP-CODEC",
 300                .stream_name = "DSP-CODEC",
 301                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 302                                | SND_SOC_DAIFMT_CBM_CFM,
 303                .params = &sub_params,
 304                .ignore_suspend = 1,
 305                SND_SOC_DAILINK_REG(wm5102_dsp_codec),
 306        },
 307        {
 308                .name = "Baseband",
 309                .stream_name = "Baseband",
 310                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 311                                | SND_SOC_DAIFMT_CBM_CFM,
 312                .ignore_suspend = 1,
 313                .params = &baseband_params,
 314                SND_SOC_DAILINK_REG(wm5102_baseband),
 315        },
 316        {
 317                .name = "Sub",
 318                .stream_name = "Sub",
 319                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 320                                | SND_SOC_DAIFMT_CBS_CFS,
 321                .ignore_suspend = 1,
 322                .params = &sub_params,
 323                SND_SOC_DAILINK_REG(wm5102_sub),
 324        },
 325};
 326
 327SND_SOC_DAILINK_DEFS(wm5110_cpu_dsp,
 328        DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
 329        DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
 330        DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
 331
 332SND_SOC_DAILINK_DEFS(wm5110_dsp_codec,
 333        DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
 334        DAILINK_COMP_ARRAY(COMP_CODEC("wm5110-codec", "wm5110-aif1")));
 335
 336SND_SOC_DAILINK_DEFS(wm5110_baseband,
 337        DAILINK_COMP_ARRAY(COMP_CPU("wm5110-aif2")),
 338        DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
 339
 340
 341SND_SOC_DAILINK_DEFS(wm5110_sub,
 342        DAILINK_COMP_ARRAY(COMP_CPU("wm5110-aif3")),
 343        DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
 344
 345static struct snd_soc_dai_link bells_dai_wm5110[] = {
 346        {
 347                .name = "CPU-DSP",
 348                .stream_name = "CPU-DSP",
 349                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 350                                | SND_SOC_DAIFMT_CBM_CFM,
 351                SND_SOC_DAILINK_REG(wm5110_cpu_dsp),
 352        },
 353        {
 354                .name = "DSP-CODEC",
 355                .stream_name = "DSP-CODEC",
 356                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 357                                | SND_SOC_DAIFMT_CBM_CFM,
 358                .params = &sub_params,
 359                .ignore_suspend = 1,
 360                SND_SOC_DAILINK_REG(wm5110_dsp_codec),
 361        },
 362        {
 363                .name = "Baseband",
 364                .stream_name = "Baseband",
 365                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 366                                | SND_SOC_DAIFMT_CBM_CFM,
 367                .ignore_suspend = 1,
 368                .params = &baseband_params,
 369                SND_SOC_DAILINK_REG(wm5110_baseband),
 370        },
 371        {
 372                .name = "Sub",
 373                .stream_name = "Sub",
 374                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 375                                | SND_SOC_DAIFMT_CBS_CFS,
 376                .ignore_suspend = 1,
 377                .params = &sub_params,
 378                SND_SOC_DAILINK_REG(wm5110_sub),
 379        },
 380};
 381
 382static struct snd_soc_codec_conf bells_codec_conf[] = {
 383        {
 384                .dev_name = "wm9081.1-006c",
 385                .name_prefix = "Sub",
 386        },
 387};
 388
 389static struct snd_soc_dapm_widget bells_widgets[] = {
 390        SND_SOC_DAPM_MIC("DMIC", NULL),
 391};
 392
 393static struct snd_soc_dapm_route bells_routes[] = {
 394        { "Sub CLK_SYS", NULL, "OPCLK" },
 395        { "CLKIN", NULL, "OPCLK" },
 396
 397        { "DMIC", NULL, "MICBIAS2" },
 398        { "IN2L", NULL, "DMIC" },
 399        { "IN2R", NULL, "DMIC" },
 400};
 401
 402static struct snd_soc_card bells_cards[] = {
 403        {
 404                .name = "Bells WM2200",
 405                .owner = THIS_MODULE,
 406                .dai_link = bells_dai_wm2200,
 407                .num_links = ARRAY_SIZE(bells_dai_wm2200),
 408                .codec_conf = bells_codec_conf,
 409                .num_configs = ARRAY_SIZE(bells_codec_conf),
 410
 411                .late_probe = bells_late_probe,
 412
 413                .dapm_widgets = bells_widgets,
 414                .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 415                .dapm_routes = bells_routes,
 416                .num_dapm_routes = ARRAY_SIZE(bells_routes),
 417
 418                .set_bias_level = bells_set_bias_level,
 419                .set_bias_level_post = bells_set_bias_level_post,
 420
 421                .drvdata = &wm2200_drvdata,
 422        },
 423        {
 424                .name = "Bells WM5102",
 425                .owner = THIS_MODULE,
 426                .dai_link = bells_dai_wm5102,
 427                .num_links = ARRAY_SIZE(bells_dai_wm5102),
 428                .codec_conf = bells_codec_conf,
 429                .num_configs = ARRAY_SIZE(bells_codec_conf),
 430
 431                .late_probe = bells_late_probe,
 432
 433                .dapm_widgets = bells_widgets,
 434                .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 435                .dapm_routes = bells_routes,
 436                .num_dapm_routes = ARRAY_SIZE(bells_routes),
 437
 438                .set_bias_level = bells_set_bias_level,
 439                .set_bias_level_post = bells_set_bias_level_post,
 440
 441                .drvdata = &wm5102_drvdata,
 442        },
 443        {
 444                .name = "Bells WM5110",
 445                .owner = THIS_MODULE,
 446                .dai_link = bells_dai_wm5110,
 447                .num_links = ARRAY_SIZE(bells_dai_wm5110),
 448                .codec_conf = bells_codec_conf,
 449                .num_configs = ARRAY_SIZE(bells_codec_conf),
 450
 451                .late_probe = bells_late_probe,
 452
 453                .dapm_widgets = bells_widgets,
 454                .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 455                .dapm_routes = bells_routes,
 456                .num_dapm_routes = ARRAY_SIZE(bells_routes),
 457
 458                .set_bias_level = bells_set_bias_level,
 459                .set_bias_level_post = bells_set_bias_level_post,
 460
 461                .drvdata = &wm5110_drvdata,
 462        },
 463};
 464
 465static int bells_probe(struct platform_device *pdev)
 466{
 467        int ret;
 468
 469        bells_cards[pdev->id].dev = &pdev->dev;
 470
 471        ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
 472        if (ret)
 473                dev_err(&pdev->dev,
 474                        "snd_soc_register_card(%s) failed: %d\n",
 475                        bells_cards[pdev->id].name, ret);
 476
 477        return ret;
 478}
 479
 480static struct platform_driver bells_driver = {
 481        .driver = {
 482                .name = "bells",
 483                .pm = &snd_soc_pm_ops,
 484        },
 485        .probe = bells_probe,
 486};
 487
 488module_platform_driver(bells_driver);
 489
 490MODULE_DESCRIPTION("Bells audio support");
 491MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 492MODULE_LICENSE("GPL");
 493MODULE_ALIAS("platform:bells");
 494