linux/sound/soc/codecs/rt5682-sdw.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2//
   3// rt5682-sdw.c  --  RT5682 ALSA SoC audio component driver
   4//
   5// Copyright 2019 Realtek Semiconductor Corp.
   6// Author: Oder Chiou <oder_chiou@realtek.com>
   7//
   8
   9#include <linux/module.h>
  10#include <linux/moduleparam.h>
  11#include <linux/init.h>
  12#include <linux/delay.h>
  13#include <linux/pm.h>
  14#include <linux/acpi.h>
  15#include <linux/gpio.h>
  16#include <linux/of_gpio.h>
  17#include <linux/pm_runtime.h>
  18#include <linux/regulator/consumer.h>
  19#include <linux/mutex.h>
  20#include <linux/soundwire/sdw.h>
  21#include <linux/soundwire/sdw_type.h>
  22#include <linux/soundwire/sdw_registers.h>
  23#include <sound/core.h>
  24#include <sound/pcm.h>
  25#include <sound/pcm_params.h>
  26#include <sound/jack.h>
  27#include <sound/soc.h>
  28#include <sound/soc-dapm.h>
  29#include <sound/initval.h>
  30#include <sound/tlv.h>
  31
  32#include "rt5682.h"
  33
  34#define RT5682_SDW_ADDR_L                       0x3000
  35#define RT5682_SDW_ADDR_H                       0x3001
  36#define RT5682_SDW_DATA_L                       0x3004
  37#define RT5682_SDW_DATA_H                       0x3005
  38#define RT5682_SDW_CMD                          0x3008
  39
  40static int rt5682_sdw_read(void *context, unsigned int reg, unsigned int *val)
  41{
  42        struct device *dev = context;
  43        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
  44        unsigned int data_l, data_h;
  45
  46        regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 0);
  47        regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
  48        regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
  49        regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_H, &data_h);
  50        regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_L, &data_l);
  51
  52        *val = (data_h << 8) | data_l;
  53
  54        dev_vdbg(dev, "[%s] %04x => %04x\n", __func__, reg, *val);
  55
  56        return 0;
  57}
  58
  59static int rt5682_sdw_write(void *context, unsigned int reg, unsigned int val)
  60{
  61        struct device *dev = context;
  62        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
  63
  64        regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 1);
  65        regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
  66        regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
  67        regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_H, (val >> 8) & 0xff);
  68        regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_L, (val & 0xff));
  69
  70        dev_vdbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val);
  71
  72        return 0;
  73}
  74
  75static const struct regmap_config rt5682_sdw_indirect_regmap = {
  76        .reg_bits = 16,
  77        .val_bits = 16,
  78        .max_register = RT5682_I2C_MODE,
  79        .volatile_reg = rt5682_volatile_register,
  80        .readable_reg = rt5682_readable_register,
  81        .cache_type = REGCACHE_RBTREE,
  82        .reg_defaults = rt5682_reg,
  83        .num_reg_defaults = RT5682_REG_NUM,
  84        .use_single_read = true,
  85        .use_single_write = true,
  86        .reg_read = rt5682_sdw_read,
  87        .reg_write = rt5682_sdw_write,
  88};
  89
  90struct sdw_stream_data {
  91        struct sdw_stream_runtime *sdw_stream;
  92};
  93
  94static int rt5682_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
  95                                 int direction)
  96{
  97        struct sdw_stream_data *stream;
  98
  99        if (!sdw_stream)
 100                return 0;
 101
 102        stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 103        if (!stream)
 104                return -ENOMEM;
 105
 106        stream->sdw_stream = sdw_stream;
 107
 108        /* Use tx_mask or rx_mask to configure stream tag and set dma_data */
 109        if (direction == SNDRV_PCM_STREAM_PLAYBACK)
 110                dai->playback_dma_data = stream;
 111        else
 112                dai->capture_dma_data = stream;
 113
 114        return 0;
 115}
 116
 117static void rt5682_sdw_shutdown(struct snd_pcm_substream *substream,
 118                                struct snd_soc_dai *dai)
 119{
 120        struct sdw_stream_data *stream;
 121
 122        stream = snd_soc_dai_get_dma_data(dai, substream);
 123        snd_soc_dai_set_dma_data(dai, substream, NULL);
 124        kfree(stream);
 125}
 126
 127static int rt5682_sdw_hw_params(struct snd_pcm_substream *substream,
 128                                struct snd_pcm_hw_params *params,
 129                                struct snd_soc_dai *dai)
 130{
 131        struct snd_soc_component *component = dai->component;
 132        struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
 133        struct sdw_stream_config stream_config;
 134        struct sdw_port_config port_config;
 135        enum sdw_data_direction direction;
 136        struct sdw_stream_data *stream;
 137        int retval, port, num_channels;
 138        unsigned int val_p = 0, val_c = 0, osr_p = 0, osr_c = 0;
 139
 140        dev_dbg(dai->dev, "%s %s", __func__, dai->name);
 141
 142        stream = snd_soc_dai_get_dma_data(dai, substream);
 143        if (!stream)
 144                return -ENOMEM;
 145
 146        if (!rt5682->slave)
 147                return -EINVAL;
 148
 149        /* SoundWire specific configuration */
 150        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 151                direction = SDW_DATA_DIR_RX;
 152                port = 1;
 153        } else {
 154                direction = SDW_DATA_DIR_TX;
 155                port = 2;
 156        }
 157
 158        stream_config.frame_rate = params_rate(params);
 159        stream_config.ch_count = params_channels(params);
 160        stream_config.bps = snd_pcm_format_width(params_format(params));
 161        stream_config.direction = direction;
 162
 163        num_channels = params_channels(params);
 164        port_config.ch_mask = (1 << (num_channels)) - 1;
 165        port_config.num = port;
 166
 167        retval = sdw_stream_add_slave(rt5682->slave, &stream_config,
 168                                      &port_config, 1, stream->sdw_stream);
 169        if (retval) {
 170                dev_err(dai->dev, "Unable to configure port\n");
 171                return retval;
 172        }
 173
 174        switch (params_rate(params)) {
 175        case 48000:
 176                val_p = RT5682_SDW_REF_1_48K;
 177                val_c = RT5682_SDW_REF_2_48K;
 178                break;
 179        case 96000:
 180                val_p = RT5682_SDW_REF_1_96K;
 181                val_c = RT5682_SDW_REF_2_96K;
 182                break;
 183        case 192000:
 184                val_p = RT5682_SDW_REF_1_192K;
 185                val_c = RT5682_SDW_REF_2_192K;
 186                break;
 187        case 32000:
 188                val_p = RT5682_SDW_REF_1_32K;
 189                val_c = RT5682_SDW_REF_2_32K;
 190                break;
 191        case 24000:
 192                val_p = RT5682_SDW_REF_1_24K;
 193                val_c = RT5682_SDW_REF_2_24K;
 194                break;
 195        case 16000:
 196                val_p = RT5682_SDW_REF_1_16K;
 197                val_c = RT5682_SDW_REF_2_16K;
 198                break;
 199        case 12000:
 200                val_p = RT5682_SDW_REF_1_12K;
 201                val_c = RT5682_SDW_REF_2_12K;
 202                break;
 203        case 8000:
 204                val_p = RT5682_SDW_REF_1_8K;
 205                val_c = RT5682_SDW_REF_2_8K;
 206                break;
 207        case 44100:
 208                val_p = RT5682_SDW_REF_1_44K;
 209                val_c = RT5682_SDW_REF_2_44K;
 210                break;
 211        case 88200:
 212                val_p = RT5682_SDW_REF_1_88K;
 213                val_c = RT5682_SDW_REF_2_88K;
 214                break;
 215        case 176400:
 216                val_p = RT5682_SDW_REF_1_176K;
 217                val_c = RT5682_SDW_REF_2_176K;
 218                break;
 219        case 22050:
 220                val_p = RT5682_SDW_REF_1_22K;
 221                val_c = RT5682_SDW_REF_2_22K;
 222                break;
 223        case 11025:
 224                val_p = RT5682_SDW_REF_1_11K;
 225                val_c = RT5682_SDW_REF_2_11K;
 226                break;
 227        default:
 228                return -EINVAL;
 229        }
 230
 231        if (params_rate(params) <= 48000) {
 232                osr_p = RT5682_DAC_OSR_D_8;
 233                osr_c = RT5682_ADC_OSR_D_8;
 234        } else if (params_rate(params) <= 96000) {
 235                osr_p = RT5682_DAC_OSR_D_4;
 236                osr_c = RT5682_ADC_OSR_D_4;
 237        } else {
 238                osr_p = RT5682_DAC_OSR_D_2;
 239                osr_c = RT5682_ADC_OSR_D_2;
 240        }
 241
 242        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 243                regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
 244                        RT5682_SDW_REF_1_MASK, val_p);
 245                regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
 246                        RT5682_DAC_OSR_MASK, osr_p);
 247        } else {
 248                regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
 249                        RT5682_SDW_REF_2_MASK, val_c);
 250                regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
 251                        RT5682_ADC_OSR_MASK, osr_c);
 252        }
 253
 254        return retval;
 255}
 256
 257static int rt5682_sdw_hw_free(struct snd_pcm_substream *substream,
 258                              struct snd_soc_dai *dai)
 259{
 260        struct snd_soc_component *component = dai->component;
 261        struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
 262        struct sdw_stream_data *stream =
 263                snd_soc_dai_get_dma_data(dai, substream);
 264
 265        if (!rt5682->slave)
 266                return -EINVAL;
 267
 268        sdw_stream_remove_slave(rt5682->slave, stream->sdw_stream);
 269        return 0;
 270}
 271
 272static const struct snd_soc_dai_ops rt5682_sdw_ops = {
 273        .hw_params      = rt5682_sdw_hw_params,
 274        .hw_free        = rt5682_sdw_hw_free,
 275        .set_stream     = rt5682_set_sdw_stream,
 276        .shutdown       = rt5682_sdw_shutdown,
 277};
 278
 279static struct snd_soc_dai_driver rt5682_dai[] = {
 280        {
 281                .name = "rt5682-aif1",
 282                .id = RT5682_AIF1,
 283                .playback = {
 284                        .stream_name = "AIF1 Playback",
 285                        .channels_min = 1,
 286                        .channels_max = 2,
 287                        .rates = RT5682_STEREO_RATES,
 288                        .formats = RT5682_FORMATS,
 289                },
 290                .capture = {
 291                        .stream_name = "AIF1 Capture",
 292                        .channels_min = 1,
 293                        .channels_max = 2,
 294                        .rates = RT5682_STEREO_RATES,
 295                        .formats = RT5682_FORMATS,
 296                },
 297                .ops = &rt5682_aif1_dai_ops,
 298        },
 299        {
 300                .name = "rt5682-aif2",
 301                .id = RT5682_AIF2,
 302                .capture = {
 303                        .stream_name = "AIF2 Capture",
 304                        .channels_min = 1,
 305                        .channels_max = 2,
 306                        .rates = RT5682_STEREO_RATES,
 307                        .formats = RT5682_FORMATS,
 308                },
 309                .ops = &rt5682_aif2_dai_ops,
 310        },
 311        {
 312                .name = "rt5682-sdw",
 313                .id = RT5682_SDW,
 314                .playback = {
 315                        .stream_name = "SDW Playback",
 316                        .channels_min = 1,
 317                        .channels_max = 2,
 318                        .rates = RT5682_STEREO_RATES,
 319                        .formats = RT5682_FORMATS,
 320                },
 321                .capture = {
 322                        .stream_name = "SDW Capture",
 323                        .channels_min = 1,
 324                        .channels_max = 2,
 325                        .rates = RT5682_STEREO_RATES,
 326                        .formats = RT5682_FORMATS,
 327                },
 328                .ops = &rt5682_sdw_ops,
 329        },
 330};
 331
 332static int rt5682_sdw_init(struct device *dev, struct regmap *regmap,
 333                           struct sdw_slave *slave)
 334{
 335        struct rt5682_priv *rt5682;
 336        int ret;
 337
 338        rt5682 = devm_kzalloc(dev, sizeof(*rt5682), GFP_KERNEL);
 339        if (!rt5682)
 340                return -ENOMEM;
 341
 342        dev_set_drvdata(dev, rt5682);
 343        rt5682->slave = slave;
 344        rt5682->sdw_regmap = regmap;
 345        rt5682->is_sdw = true;
 346
 347        mutex_init(&rt5682->disable_irq_lock);
 348
 349        rt5682->regmap = devm_regmap_init(dev, NULL, dev,
 350                                          &rt5682_sdw_indirect_regmap);
 351        if (IS_ERR(rt5682->regmap)) {
 352                ret = PTR_ERR(rt5682->regmap);
 353                dev_err(dev, "Failed to allocate register map: %d\n",
 354                        ret);
 355                return ret;
 356        }
 357
 358        /*
 359         * Mark hw_init to false
 360         * HW init will be performed when device reports present
 361         */
 362        rt5682->hw_init = false;
 363        rt5682->first_hw_init = false;
 364
 365        mutex_init(&rt5682->calibrate_mutex);
 366        INIT_DELAYED_WORK(&rt5682->jack_detect_work,
 367                rt5682_jack_detect_handler);
 368
 369        ret = devm_snd_soc_register_component(dev,
 370                                              &rt5682_soc_component_dev,
 371                                              rt5682_dai, ARRAY_SIZE(rt5682_dai));
 372        dev_dbg(&slave->dev, "%s\n", __func__);
 373
 374        return ret;
 375}
 376
 377static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
 378{
 379        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
 380        int ret = 0, loop = 10;
 381        unsigned int val;
 382
 383        rt5682->disable_irq = false;
 384
 385        if (rt5682->hw_init)
 386                return 0;
 387
 388        /*
 389         * PM runtime is only enabled when a Slave reports as Attached
 390         */
 391        if (!rt5682->first_hw_init) {
 392                /* set autosuspend parameters */
 393                pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
 394                pm_runtime_use_autosuspend(&slave->dev);
 395
 396                /* update count of parent 'active' children */
 397                pm_runtime_set_active(&slave->dev);
 398
 399                /* make sure the device does not suspend immediately */
 400                pm_runtime_mark_last_busy(&slave->dev);
 401
 402                pm_runtime_enable(&slave->dev);
 403        }
 404
 405        pm_runtime_get_noresume(&slave->dev);
 406
 407        if (rt5682->first_hw_init) {
 408                regcache_cache_only(rt5682->regmap, false);
 409                regcache_cache_bypass(rt5682->regmap, true);
 410        }
 411
 412        while (loop > 0) {
 413                regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
 414                if (val == DEVICE_ID)
 415                        break;
 416                dev_warn(dev, "Device with ID register %x is not rt5682\n", val);
 417                usleep_range(30000, 30005);
 418                loop--;
 419        }
 420
 421        if (val != DEVICE_ID) {
 422                dev_err(dev, "Device with ID register %x is not rt5682\n", val);
 423                ret = -ENODEV;
 424                goto err_nodev;
 425        }
 426
 427        rt5682_calibrate(rt5682);
 428
 429        if (rt5682->first_hw_init) {
 430                regcache_cache_bypass(rt5682->regmap, false);
 431                regcache_mark_dirty(rt5682->regmap);
 432                regcache_sync(rt5682->regmap);
 433
 434                /* volatile registers */
 435                regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
 436                        RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
 437
 438                goto reinit;
 439        }
 440
 441        rt5682_apply_patch_list(rt5682, dev);
 442
 443        regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);
 444
 445        regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1,
 446                RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK,
 447                RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X);
 448        regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080);
 449        regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);
 450        regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,
 451                RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);
 452        regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,
 453                RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);
 454        regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,
 455                RT5682_PM_HP_MASK, RT5682_PM_HP_HV);
 456
 457        /* Soundwire */
 458        regmap_write(rt5682->regmap, RT5682_PLL2_INTERNAL, 0xa266);
 459        regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_1, 0x1700);
 460        regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_2, 0x0006);
 461        regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_3, 0x2600);
 462        regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_4, 0x0c8f);
 463        regmap_write(rt5682->regmap, RT5682_PLL_TRACK_2, 0x3000);
 464        regmap_write(rt5682->regmap, RT5682_PLL_TRACK_3, 0x4000);
 465        regmap_update_bits(rt5682->regmap, RT5682_GLB_CLK,
 466                RT5682_SCLK_SRC_MASK | RT5682_PLL2_SRC_MASK,
 467                RT5682_SCLK_SRC_PLL2 | RT5682_PLL2_SRC_SDW);
 468
 469        regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
 470                RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
 471        regmap_write(rt5682->regmap, RT5682_CBJ_CTRL_1, 0xd142);
 472        regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_5, 0x0700, 0x0600);
 473        regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_3,
 474                RT5682_CBJ_IN_BUF_EN, RT5682_CBJ_IN_BUF_EN);
 475        regmap_update_bits(rt5682->regmap, RT5682_SAR_IL_CMD_1,
 476                RT5682_SAR_POW_MASK, RT5682_SAR_POW_EN);
 477        regmap_update_bits(rt5682->regmap, RT5682_RC_CLK_CTRL,
 478                RT5682_POW_IRQ | RT5682_POW_JDH |
 479                RT5682_POW_ANA, RT5682_POW_IRQ |
 480                RT5682_POW_JDH | RT5682_POW_ANA);
 481        regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_2,
 482                RT5682_PWR_JDH, RT5682_PWR_JDH);
 483        regmap_update_bits(rt5682->regmap, RT5682_IRQ_CTRL_2,
 484                RT5682_JD1_EN_MASK | RT5682_JD1_IRQ_MASK,
 485                RT5682_JD1_EN | RT5682_JD1_IRQ_PUL);
 486
 487reinit:
 488        mod_delayed_work(system_power_efficient_wq,
 489                &rt5682->jack_detect_work, msecs_to_jiffies(250));
 490
 491        /* Mark Slave initialization complete */
 492        rt5682->hw_init = true;
 493        rt5682->first_hw_init = true;
 494
 495err_nodev:
 496        pm_runtime_mark_last_busy(&slave->dev);
 497        pm_runtime_put_autosuspend(&slave->dev);
 498
 499        dev_dbg(&slave->dev, "%s hw_init complete: %d\n", __func__, ret);
 500
 501        return ret;
 502}
 503
 504static bool rt5682_sdw_readable_register(struct device *dev, unsigned int reg)
 505{
 506        switch (reg) {
 507        case 0x00e0:
 508        case 0x00f0:
 509        case 0x3000:
 510        case 0x3001:
 511        case 0x3004:
 512        case 0x3005:
 513        case 0x3008:
 514                return true;
 515        default:
 516                return false;
 517        }
 518}
 519
 520static const struct regmap_config rt5682_sdw_regmap = {
 521        .name = "sdw",
 522        .reg_bits = 32,
 523        .val_bits = 8,
 524        .max_register = RT5682_I2C_MODE,
 525        .readable_reg = rt5682_sdw_readable_register,
 526        .cache_type = REGCACHE_NONE,
 527        .use_single_read = true,
 528        .use_single_write = true,
 529};
 530
 531static int rt5682_update_status(struct sdw_slave *slave,
 532                                        enum sdw_slave_status status)
 533{
 534        struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
 535
 536        /* Update the status */
 537        rt5682->status = status;
 538
 539        if (status == SDW_SLAVE_UNATTACHED)
 540                rt5682->hw_init = false;
 541
 542        /*
 543         * Perform initialization only if slave status is present and
 544         * hw_init flag is false
 545         */
 546        if (rt5682->hw_init || rt5682->status != SDW_SLAVE_ATTACHED)
 547                return 0;
 548
 549        /* perform I/O transfers required for Slave initialization */
 550        return rt5682_io_init(&slave->dev, slave);
 551}
 552
 553static int rt5682_read_prop(struct sdw_slave *slave)
 554{
 555        struct sdw_slave_prop *prop = &slave->prop;
 556        int nval, i;
 557        u32 bit;
 558        unsigned long addr;
 559        struct sdw_dpn_prop *dpn;
 560
 561        prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
 562                SDW_SCP_INT1_PARITY;
 563        prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
 564
 565        prop->paging_support = false;
 566
 567        /* first we need to allocate memory for set bits in port lists */
 568        prop->source_ports = 0x4;       /* BITMAP: 00000100 */
 569        prop->sink_ports = 0x2;         /* BITMAP: 00000010 */
 570
 571        nval = hweight32(prop->source_ports);
 572        prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
 573                                          sizeof(*prop->src_dpn_prop),
 574                                          GFP_KERNEL);
 575        if (!prop->src_dpn_prop)
 576                return -ENOMEM;
 577
 578        i = 0;
 579        dpn = prop->src_dpn_prop;
 580        addr = prop->source_ports;
 581        for_each_set_bit(bit, &addr, 32) {
 582                dpn[i].num = bit;
 583                dpn[i].type = SDW_DPN_FULL;
 584                dpn[i].simple_ch_prep_sm = true;
 585                dpn[i].ch_prep_timeout = 10;
 586                i++;
 587        }
 588
 589        /* do this again for sink now */
 590        nval = hweight32(prop->sink_ports);
 591        prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
 592                                           sizeof(*prop->sink_dpn_prop),
 593                                           GFP_KERNEL);
 594        if (!prop->sink_dpn_prop)
 595                return -ENOMEM;
 596
 597        i = 0;
 598        dpn = prop->sink_dpn_prop;
 599        addr = prop->sink_ports;
 600        for_each_set_bit(bit, &addr, 32) {
 601                dpn[i].num = bit;
 602                dpn[i].type = SDW_DPN_FULL;
 603                dpn[i].simple_ch_prep_sm = true;
 604                dpn[i].ch_prep_timeout = 10;
 605                i++;
 606        }
 607
 608        /* set the timeout values */
 609        prop->clk_stop_timeout = 20;
 610
 611        /* wake-up event */
 612        prop->wake_capable = 1;
 613
 614        return 0;
 615}
 616
 617/* Bus clock frequency */
 618#define RT5682_CLK_FREQ_9600000HZ 9600000
 619#define RT5682_CLK_FREQ_12000000HZ 12000000
 620#define RT5682_CLK_FREQ_6000000HZ 6000000
 621#define RT5682_CLK_FREQ_4800000HZ 4800000
 622#define RT5682_CLK_FREQ_2400000HZ 2400000
 623#define RT5682_CLK_FREQ_12288000HZ 12288000
 624
 625static int rt5682_clock_config(struct device *dev)
 626{
 627        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
 628        unsigned int clk_freq, value;
 629
 630        clk_freq = (rt5682->params.curr_dr_freq >> 1);
 631
 632        switch (clk_freq) {
 633        case RT5682_CLK_FREQ_12000000HZ:
 634                value = 0x0;
 635                break;
 636        case RT5682_CLK_FREQ_6000000HZ:
 637                value = 0x1;
 638                break;
 639        case RT5682_CLK_FREQ_9600000HZ:
 640                value = 0x2;
 641                break;
 642        case RT5682_CLK_FREQ_4800000HZ:
 643                value = 0x3;
 644                break;
 645        case RT5682_CLK_FREQ_2400000HZ:
 646                value = 0x4;
 647                break;
 648        case RT5682_CLK_FREQ_12288000HZ:
 649                value = 0x5;
 650                break;
 651        default:
 652                return -EINVAL;
 653        }
 654
 655        regmap_write(rt5682->sdw_regmap, 0xe0, value);
 656        regmap_write(rt5682->sdw_regmap, 0xf0, value);
 657
 658        dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq);
 659
 660        return 0;
 661}
 662
 663static int rt5682_bus_config(struct sdw_slave *slave,
 664                                        struct sdw_bus_params *params)
 665{
 666        struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
 667        int ret;
 668
 669        memcpy(&rt5682->params, params, sizeof(*params));
 670
 671        ret = rt5682_clock_config(&slave->dev);
 672        if (ret < 0)
 673                dev_err(&slave->dev, "Invalid clk config");
 674
 675        return ret;
 676}
 677
 678static int rt5682_interrupt_callback(struct sdw_slave *slave,
 679                                        struct sdw_slave_intr_status *status)
 680{
 681        struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
 682
 683        dev_dbg(&slave->dev,
 684                "%s control_port_stat=%x", __func__, status->control_port);
 685
 686        mutex_lock(&rt5682->disable_irq_lock);
 687        if (status->control_port & 0x4 && !rt5682->disable_irq) {
 688                mod_delayed_work(system_power_efficient_wq,
 689                        &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time));
 690        }
 691        mutex_unlock(&rt5682->disable_irq_lock);
 692
 693        return 0;
 694}
 695
 696static const struct sdw_slave_ops rt5682_slave_ops = {
 697        .read_prop = rt5682_read_prop,
 698        .interrupt_callback = rt5682_interrupt_callback,
 699        .update_status = rt5682_update_status,
 700        .bus_config = rt5682_bus_config,
 701};
 702
 703static int rt5682_sdw_probe(struct sdw_slave *slave,
 704                           const struct sdw_device_id *id)
 705{
 706        struct regmap *regmap;
 707
 708        /* Regmap Initialization */
 709        regmap = devm_regmap_init_sdw(slave, &rt5682_sdw_regmap);
 710        if (IS_ERR(regmap))
 711                return -EINVAL;
 712
 713        rt5682_sdw_init(&slave->dev, regmap, slave);
 714
 715        return 0;
 716}
 717
 718static int rt5682_sdw_remove(struct sdw_slave *slave)
 719{
 720        struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
 721
 722        if (rt5682 && rt5682->hw_init)
 723                cancel_delayed_work_sync(&rt5682->jack_detect_work);
 724
 725        return 0;
 726}
 727
 728static const struct sdw_device_id rt5682_id[] = {
 729        SDW_SLAVE_ENTRY_EXT(0x025d, 0x5682, 0x2, 0, 0),
 730        {},
 731};
 732MODULE_DEVICE_TABLE(sdw, rt5682_id);
 733
 734static int __maybe_unused rt5682_dev_suspend(struct device *dev)
 735{
 736        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
 737
 738        if (!rt5682->hw_init)
 739                return 0;
 740
 741        cancel_delayed_work_sync(&rt5682->jack_detect_work);
 742
 743        regcache_cache_only(rt5682->regmap, true);
 744        regcache_mark_dirty(rt5682->regmap);
 745
 746        return 0;
 747}
 748
 749static int __maybe_unused rt5682_dev_system_suspend(struct device *dev)
 750{
 751        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
 752        struct sdw_slave *slave = dev_to_sdw_dev(dev);
 753        int ret;
 754
 755        if (!rt5682->hw_init)
 756                return 0;
 757
 758        /*
 759         * prevent new interrupts from being handled after the
 760         * deferred work completes and before the parent disables
 761         * interrupts on the link
 762         */
 763        mutex_lock(&rt5682->disable_irq_lock);
 764        rt5682->disable_irq = true;
 765        ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1,
 766                               SDW_SCP_INT1_IMPL_DEF, 0);
 767        mutex_unlock(&rt5682->disable_irq_lock);
 768
 769        if (ret < 0) {
 770                /* log but don't prevent suspend from happening */
 771                dev_dbg(&slave->dev, "%s: could not disable imp-def interrupts\n:", __func__);
 772        }
 773
 774        return rt5682_dev_suspend(dev);
 775}
 776
 777static int __maybe_unused rt5682_dev_resume(struct device *dev)
 778{
 779        struct sdw_slave *slave = dev_to_sdw_dev(dev);
 780        struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
 781        unsigned long time;
 782
 783        if (!rt5682->first_hw_init)
 784                return 0;
 785
 786        if (!slave->unattach_request)
 787                goto regmap_sync;
 788
 789        time = wait_for_completion_timeout(&slave->initialization_complete,
 790                                msecs_to_jiffies(RT5682_PROBE_TIMEOUT));
 791        if (!time) {
 792                dev_err(&slave->dev, "Initialization not complete, timed out\n");
 793                return -ETIMEDOUT;
 794        }
 795
 796regmap_sync:
 797        slave->unattach_request = 0;
 798        regcache_cache_only(rt5682->regmap, false);
 799        regcache_sync(rt5682->regmap);
 800
 801        return 0;
 802}
 803
 804static const struct dev_pm_ops rt5682_pm = {
 805        SET_SYSTEM_SLEEP_PM_OPS(rt5682_dev_system_suspend, rt5682_dev_resume)
 806        SET_RUNTIME_PM_OPS(rt5682_dev_suspend, rt5682_dev_resume, NULL)
 807};
 808
 809static struct sdw_driver rt5682_sdw_driver = {
 810        .driver = {
 811                .name = "rt5682",
 812                .owner = THIS_MODULE,
 813                .pm = &rt5682_pm,
 814        },
 815        .probe = rt5682_sdw_probe,
 816        .remove = rt5682_sdw_remove,
 817        .ops = &rt5682_slave_ops,
 818        .id_table = rt5682_id,
 819};
 820module_sdw_driver(rt5682_sdw_driver);
 821
 822MODULE_DESCRIPTION("ASoC RT5682 driver SDW");
 823MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
 824MODULE_LICENSE("GPL v2");
 825