sound/soc/codecs/rt1316-sdw.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver
   4 //
   5 // Copyright(c) 2021 Realtek Semiconductor Corp.
   6 //
   7 //
   8 #include <linux/delay.h>
   9 #include <linux/device.h>
  10 #include <linux/pm_runtime.h>
  11 #include <linux/mod_devicetable.h>
  12 #include <linux/module.h>
  13 #include <linux/regmap.h>
  14 #include <sound/core.h>
  15 #include <sound/pcm.h>
  16 #include <sound/pcm_params.h>
  17 #include <sound/sdw.h>
  18 #include <sound/soc-dapm.h>
  19 #include <sound/initval.h>
  20 #include "rt1316-sdw.h"
  21
  22 static const struct reg_default rt1316_reg_defaults[] = {
  23         { 0x3004, 0x00 },
  24         { 0x3005, 0x00 },
  25         { 0x3206, 0x00 },
  26         { 0xc001, 0x00 },
  27         { 0xc002, 0x00 },
  28         { 0xc003, 0x00 },
  29         { 0xc004, 0x00 },
  30         { 0xc005, 0x00 },
  31         { 0xc006, 0x00 },
  32         { 0xc007, 0x00 },
  33         { 0xc008, 0x00 },
  34         { 0xc009, 0x00 },
  35         { 0xc00a, 0x00 },
  36         { 0xc00b, 0x00 },
  37         { 0xc00c, 0x00 },
  38         { 0xc00d, 0x00 },
  39         { 0xc00e, 0x00 },
  40         { 0xc00f, 0x00 },
  41         { 0xc010, 0xa5 },
  42         { 0xc011, 0x00 },
  43         { 0xc012, 0xff },
  44         { 0xc013, 0xff },
  45         { 0xc014, 0x40 },
  46         { 0xc015, 0x00 },
  47         { 0xc016, 0x00 },
  48         { 0xc017, 0x00 },
  49         { 0xc605, 0x30 },
  50         { 0xc700, 0x0a },
  51         { 0xc701, 0xaa },
  52         { 0xc702, 0x1a },
  53         { 0xc703, 0x0a },
  54         { 0xc710, 0x80 },
  55         { 0xc711, 0x00 },
  56         { 0xc712, 0x3e },
  57         { 0xc713, 0x80 },
  58         { 0xc714, 0x80 },
  59         { 0xc715, 0x06 },
  60         { 0xd101, 0x00 },
  61         { 0xd102, 0x30 },
  62         { 0xd103, 0x00 },
  63         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },
  64         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 },
  65         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 },
  66         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 },
  67         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
  68         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
  69         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
  70 };
  71
  72 static const struct reg_sequence rt1316_blind_write[] = {
  73         { 0xc710, 0x17 },
  74         { 0xc711, 0x80 },
  75         { 0xc712, 0x26 },
  76         { 0xc713, 0x06 },
  77         { 0xc714, 0x80 },
  78         { 0xc715, 0x06 },
  79         { 0xc702, 0x0a },
  80         { 0xc703, 0x0a },
  81         { 0xc001, 0x45 },
  82         { 0xc003, 0x00 },
  83         { 0xc004, 0x11 },
  84         { 0xc005, 0x00 },
  85         { 0xc006, 0x00 },
  86         { 0xc106, 0x00 },
  87         { 0xc007, 0x11 },
  88         { 0xc008, 0x11 },
  89         { 0xc009, 0x00 },
  90
  91         { 0x2f0a, 0x00 },
  92         { 0xd101, 0xf0 },
  93         { 0xd103, 0x9b },
  94         { 0x2f36, 0x8e },
  95         { 0x3206, 0x80 },
  96         { 0x3211, 0x0b },
  97         { 0x3216, 0x06 },
  98         { 0xc614, 0x20 },
  99         { 0xc615, 0x0a },
 100         { 0xc616, 0x02 },
 101         { 0xc617, 0x00 },
 102         { 0xc60b, 0x10 },
 103         { 0xc60e, 0x05 },
 104         { 0xc102, 0x00 },
 105         { 0xc090, 0xb0 },
 106         { 0xc00f, 0x01 },
 107         { 0xc09c, 0x7b },
 108
 109         { 0xc602, 0x07 },
 110         { 0xc603, 0x07 },
 111         { 0xc0a3, 0x71 },
 112         { 0xc00b, 0x30 },
 113         { 0xc093, 0x80 },
 114         { 0xc09d, 0x80 },
 115         { 0xc0b0, 0x77 },
 116         { 0xc010, 0xa5 },
 117         { 0xc050, 0x83 },
 118         { 0x2f55, 0x03 },
 119         { 0x3217, 0xb5 },
 120         { 0x3202, 0x02 },
 121
 122         { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 },
 123
 124         /* for IV sense */
 125         { 0x2232, 0x80 },
 126         { 0xc0b0, 0x77 },
 127         { 0xc011, 0x00 },
 128         { 0xc020, 0x00 },
 129         { 0xc023, 0x00 },
 130         { 0x3101, 0x00 },
 131         { 0x3004, 0xa0 },
 132         { 0x3005, 0xb1 },
 133         { 0xc007, 0x11 },
 134         { 0xc008, 0x11 },
 135         { 0xc009, 0x00 },
 136         { 0xc022, 0xd6 },
 137         { 0xc025, 0xd6 },
 138
 139         { 0xd001, 0x03 },
 140         { 0xd002, 0xbf },
 141         { 0xd003, 0x03 },
 142         { 0xd004, 0xbf },
 143 };
 144
 145 static bool rt1316_readable_register(struct device *dev, unsigned int reg)
 146 {
 147         switch (reg) {
 148         case 0x2f0a:
 149         case 0x2f36:
 150         case 0x3203 ... 0x320e:
 151         case 0xc000 ... 0xc7b4:
 152         case 0xcf00 ... 0xcf03:
 153         case 0xd101 ... 0xd103:
 154         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0):
 155         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L):
 156         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R):
 157         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
 158         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
 159         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
 160         case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
 161                 return true;
 162         default:
 163                 return false;
 164         }
 165 }
 166
 167 static bool rt1316_volatile_register(struct device *dev, unsigned int reg)
 168 {
 169         switch (reg) {
 170         case 0xc000:
 171         case 0xc093:
 172         case 0xc09d:
 173         case 0xc0a3:
 174         case 0xc201:
 175         case 0xc427 ... 0xc428:
 176         case 0xd102:
 177                 return true;
 178         default:
 179                 return false;
 180         }
 181 }
 182
 183 static const struct regmap_config rt1316_sdw_regmap = {
 184         .reg_bits = 32,
 185         .val_bits = 8,
 186         .readable_reg = rt1316_readable_register,
 187         .volatile_reg = rt1316_volatile_register,
 188         .max_register = 0x4108ffff,
 189         .reg_defaults = rt1316_reg_defaults,
 190         .num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults),
 191         .cache_type = REGCACHE_MAPLE,
 192         .use_single_read = true,
 193         .use_single_write = true,
 194 };
 195
 196 static int rt1316_read_prop(struct sdw_slave *slave)
 197 {
 198         struct sdw_slave_prop *prop = &slave->prop;
 199         int nval;
 200         int i, j;
 201         u32 bit;
 202         unsigned long addr;
 203         struct sdw_dpn_prop *dpn;
 204
 205         prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
 206         prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
 207
 208         prop->paging_support = true;
 209
 210         /* first we need to allocate memory for set bits in port lists */
 211         prop->source_ports = 0x04; /* BITMAP: 00000100 */
 212         prop->sink_ports = 0x2; /* BITMAP:  00000010 */
 213
 214         nval = hweight32(prop->source_ports);
 215         prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
 216                 sizeof(*prop->src_dpn_prop), GFP_KERNEL);
 217         if (!prop->src_dpn_prop)
 218                 return -ENOMEM;
 219
 220         i = 0;
 221         dpn = prop->src_dpn_prop;
 222         addr = prop->source_ports;
 223         for_each_set_bit(bit, &addr, 32) {
 224                 dpn[i].num = bit;
 225                 dpn[i].type = SDW_DPN_FULL;
 226                 dpn[i].simple_ch_prep_sm = true;
 227                 dpn[i].ch_prep_timeout = 10;
 228                 i++;
 229         }
 230
 231         /* do this again for sink now */
 232         nval = hweight32(prop->sink_ports);
 233         prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
 234                 sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
 235         if (!prop->sink_dpn_prop)
 236                 return -ENOMEM;
 237
 238         j = 0;
 239         dpn = prop->sink_dpn_prop;
 240         addr = prop->sink_ports;
 241         for_each_set_bit(bit, &addr, 32) {
 242                 dpn[j].num = bit;
 243                 dpn[j].type = SDW_DPN_FULL;
 244                 dpn[j].simple_ch_prep_sm = true;
 245                 dpn[j].ch_prep_timeout = 10;
 246                 j++;
 247         }
 248
 249         /* set the timeout values */
 250         prop->clk_stop_timeout = 20;
 251
 252         dev_dbg(&slave->dev, "%s\n", __func__);
 253
 254         return 0;
 255 }
 256
 257 static void rt1316_apply_bq_params(struct rt1316_sdw_priv *rt1316)
 258 {
 259         unsigned int i, reg, data;
 260
 261         for (i = 0; i < rt1316->bq_params_cnt; i += 3) {
 262                 reg = rt1316->bq_params[i] | (rt1316->bq_params[i + 1] << 8);
 263                 data = rt1316->bq_params[i + 2];
 264                 regmap_write(rt1316->regmap, reg, data);
 265         }
 266 }
 267
 268 static int rt1316_io_init(struct device *dev, struct sdw_slave *slave)
 269 {
 270         struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
 271
 272         if (rt1316->hw_init)
 273                 return 0;
 274
 275         regcache_cache_only(rt1316->regmap, false);
 276         if (rt1316->first_hw_init) {
 277                 regcache_cache_bypass(rt1316->regmap, true);
 278         } else {
 279                 /*
 280                  *  PM runtime status is marked as 'active' only when a Slave reports as Attached
 281                  */
 282
 283                 /* update count of parent 'active' children */
 284                 pm_runtime_set_active(&slave->dev);
 285         }
 286
 287         pm_runtime_get_noresume(&slave->dev);
 288
 289         /* sw reset */
 290         regmap_write(rt1316->regmap, 0xc000, 0x02);
 291
 292         /* initial settings - blind write */
 293         regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write,
 294                 ARRAY_SIZE(rt1316_blind_write));
 295
 296         if (rt1316->first_hw_init) {
 297                 regcache_cache_bypass(rt1316->regmap, false);
 298                 regcache_mark_dirty(rt1316->regmap);
 299         } else
 300                 rt1316->first_hw_init = true;
 301
 302         /* Mark Slave initialization complete */
 303         rt1316->hw_init = true;
 304
 305         pm_runtime_mark_last_busy(&slave->dev);
 306         pm_runtime_put_autosuspend(&slave->dev);
 307
 308         dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
 309         return 0;
 310 }
 311
 312 static int rt1316_update_status(struct sdw_slave *slave,
 313                                         enum sdw_slave_status status)
 314 {
 315         struct  rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev);
 316
 317         if (status == SDW_SLAVE_UNATTACHED)
 318                 rt1316->hw_init = false;
 319
 320         /*
 321          * Perform initialization only if slave status is present and
 322          * hw_init flag is false
 323          */
 324         if (rt1316->hw_init || status != SDW_SLAVE_ATTACHED)
 325                 return 0;
 326
 327         /* perform I/O transfers required for Slave initialization */
 328         return rt1316_io_init(&slave->dev, slave);
 329 }
 330
 331 static int rt1316_classd_event(struct snd_soc_dapm_widget *w,
 332         struct snd_kcontrol *kcontrol, int event)
 333 {
 334         struct snd_soc_component *component =
 335                 snd_soc_dapm_to_component(w->dapm);
 336         struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
 337         unsigned char ps0 = 0x0, ps3 = 0x3;
 338
 339         switch (event) {
 340         case SND_SOC_DAPM_POST_PMU:
 341                 regmap_write(rt1316->regmap,
 342                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
 343                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 344                                 ps0);
 345                 regmap_write(rt1316->regmap,
 346                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
 347                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 348                                 ps0);
 349                 regmap_write(rt1316->regmap,
 350                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
 351                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 352                                 ps0);
 353                 break;
 354         case SND_SOC_DAPM_PRE_PMD:
 355                 regmap_write(rt1316->regmap,
 356                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
 357                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 358                                 ps3);
 359                 regmap_write(rt1316->regmap,
 360                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
 361                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 362                                 ps3);
 363                 regmap_write(rt1316->regmap,
 364                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
 365                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 366                                 ps3);
 367                 break;
 368
 369         default:
 370                 break;
 371         }
 372
 373         return 0;
 374 }
 375
 376 static int rt1316_pde24_event(struct snd_soc_dapm_widget *w,
 377         struct snd_kcontrol *kcontrol, int event)
 378 {
 379         struct snd_soc_component *component =
 380                 snd_soc_dapm_to_component(w->dapm);
 381         struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
 382         unsigned char ps0 = 0x0, ps3 = 0x3;
 383
 384         switch (event) {
 385         case SND_SOC_DAPM_POST_PMU:
 386                 regmap_write(rt1316->regmap,
 387                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
 388                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 389                                 ps0);
 390                 break;
 391         case SND_SOC_DAPM_PRE_PMD:
 392                 regmap_write(rt1316->regmap,
 393                         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
 394                                 RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
 395                                 ps3);
 396                 break;
 397         }
 398         return 0;
 399 }
 400
 401 static const char * const rt1316_rx_data_ch_select[] = {
 402         "L,R",
 403         "L,L",
 404         "L,R",
 405         "L,L+R",
 406         "R,L",
 407         "R,R",
 408         "R,L+R",
 409         "L+R,L",
 410         "L+R,R",
 411         "L+R,L+R",
 412 };
 413
 414 static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum,
 415         SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0,
 416         rt1316_rx_data_ch_select);
 417
 418 static const char * const rt1316_dac_output_vol_select[] = {
 419         "immediately",
 420         "zero crossing",
 421         "zero crossing with soft ramp",
 422 };
 423
 424 static SOC_ENUM_SINGLE_DECL(rt1316_dac_vol_ctl_enum,
 425         0xc010, 6, rt1316_dac_output_vol_select);
 426
 427 static const struct snd_kcontrol_new rt1316_snd_controls[] = {
 428
 429         /* I2S Data Channel Selection */
 430         SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum),
 431
 432         /* XU24 Bypass Control */
 433         SOC_SINGLE("XU24 Bypass Switch",
 434                 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0),
 435
 436         /* Left/Right IV tag */
 437         SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0),
 438         SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0),
 439         SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0),
 440         SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0),
 441
 442         /* IV mixer Control */
 443         SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1),
 444         SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1),
 445
 446         /* DAC Output Volume Control */
 447         SOC_ENUM("DAC Output Vol Control", rt1316_dac_vol_ctl_enum),
 448 };
 449
 450 static const struct snd_kcontrol_new rt1316_sto_dac =
 451         SOC_DAPM_DOUBLE_R("Switch",
 452                 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L),
 453                 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R),
 454                 0, 1, 1);
 455
 456 static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = {
 457         /* Audio Interface */
 458         SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),
 459         SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
 460
 461         /* Digital Interface */
 462         SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac),
 463
 464         /* Output Lines */
 465         SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
 466                 rt1316_classd_event,
 467                 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
 468         SND_SOC_DAPM_OUTPUT("SPOL"),
 469         SND_SOC_DAPM_OUTPUT("SPOR"),
 470
 471         SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0,
 472                 rt1316_pde24_event,
 473                 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 474         SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
 475         SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
 476         SND_SOC_DAPM_SIGGEN("I Gen"),
 477         SND_SOC_DAPM_SIGGEN("V Gen"),
 478 };
 479
 480 static const struct snd_soc_dapm_route rt1316_dapm_routes[] = {
 481         { "DAC", "Switch", "DP1RX" },
 482         { "CLASS D", NULL, "DAC" },
 483         { "SPOL", NULL, "CLASS D" },
 484         { "SPOR", NULL, "CLASS D" },
 485
 486         { "I Sense", NULL, "I Gen" },
 487         { "V Sense", NULL, "V Gen" },
 488         { "I Sense", NULL, "PDE 24" },
 489         { "V Sense", NULL, "PDE 24" },
 490         { "DP2TX", NULL, "I Sense" },
 491         { "DP2TX", NULL, "V Sense" },
 492 };
 493
 494 static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 495                                 int direction)
 496 {
 497         snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
 498
 499         return 0;
 500 }
 501
 502 static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream,
 503                                 struct snd_soc_dai *dai)
 504 {
 505         snd_soc_dai_set_dma_data(dai, substream, NULL);
 506 }
 507
 508 static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream,
 509         struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 510 {
 511         struct snd_soc_component *component = dai->component;
 512         struct rt1316_sdw_priv *rt1316 =
 513                 snd_soc_component_get_drvdata(component);
 514         struct sdw_stream_config stream_config = {0};
 515         struct sdw_port_config port_config = {0};
 516         struct sdw_stream_runtime *sdw_stream;
 517         int retval;
 518
 519         dev_dbg(dai->dev, "%s %s", __func__, dai->name);
 520         sdw_stream = snd_soc_dai_get_dma_data(dai, substream);
 521
 522         if (!sdw_stream)
 523                 return -EINVAL;
 524
 525         if (!rt1316->sdw_slave)
 526                 return -EINVAL;
 527
 528         /* SoundWire specific configuration */
 529         snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
 530
 531         /* port 1 for playback */
 532         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 533                 port_config.num = 1;
 534         else
 535                 port_config.num = 2;
 536
 537         retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config,
 538                                 &port_config, 1, sdw_stream);
 539         if (retval) {
 540                 dev_err(dai->dev, "%s: Unable to configure port\n", __func__);
 541                 return retval;
 542         }
 543
 544         return 0;
 545 }
 546
 547 static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream,
 548                                 struct snd_soc_dai *dai)
 549 {
 550         struct snd_soc_component *component = dai->component;
 551         struct rt1316_sdw_priv *rt1316 =
 552                 snd_soc_component_get_drvdata(component);
 553         struct sdw_stream_runtime *sdw_stream =
 554                 snd_soc_dai_get_dma_data(dai, substream);
 555
 556         if (!rt1316->sdw_slave)
 557                 return -EINVAL;
 558
 559         sdw_stream_remove_slave(rt1316->sdw_slave, sdw_stream);
 560         return 0;
 561 }
 562
 563 /*
 564  * slave_ops: callbacks for get_clock_stop_mode, clock_stop and
 565  * port_prep are not defined for now
 566  */
 567 static const struct sdw_slave_ops rt1316_slave_ops = {
 568         .read_prop = rt1316_read_prop,
 569         .update_status = rt1316_update_status,
 570 };
 571
 572 static int rt1316_sdw_parse_dt(struct rt1316_sdw_priv *rt1316, struct device *dev)
 573 {
 574         int ret = 0;
 575
 576         device_property_read_u32(dev, "realtek,bq-params-cnt", &rt1316->bq_params_cnt);
 577         if (rt1316->bq_params_cnt) {
 578                 rt1316->bq_params = devm_kzalloc(dev, rt1316->bq_params_cnt, GFP_KERNEL);
 579                 if (!rt1316->bq_params) {
 580                         dev_err(dev, "%s: Could not allocate bq_params memory\n", __func__);
 581                         ret = -ENOMEM;
 582                 } else {
 583                         ret = device_property_read_u8_array(dev, "realtek,bq-params", rt1316->bq_params, rt1316->bq_params_cnt);
 584                         if (ret < 0)
 585                                 dev_err(dev, "%s: Could not read list of realtek,bq-params\n", __func__);
 586                 }
 587         }
 588
 589         dev_dbg(dev, "bq_params_cnt=%d\n", rt1316->bq_params_cnt);
 590         return ret;
 591 }
 592
 593 static int rt1316_sdw_component_probe(struct snd_soc_component *component)
 594 {
 595         struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
 596         int ret;
 597
 598         rt1316->component = component;
 599         rt1316_sdw_parse_dt(rt1316, &rt1316->sdw_slave->dev);
 600
 601         if (!rt1316->first_hw_init)
 602                 return 0;
 603
 604         ret = pm_runtime_resume(component->dev);
 605         if (ret < 0 && ret != -EACCES)
 606                 return ret;
 607
 608         /* apply BQ params */
 609         rt1316_apply_bq_params(rt1316);
 610
 611         return 0;
 612 }
 613
 614 static const struct snd_soc_component_driver soc_component_sdw_rt1316 = {
 615         .probe = rt1316_sdw_component_probe,
 616         .controls = rt1316_snd_controls,
 617         .num_controls = ARRAY_SIZE(rt1316_snd_controls),
 618         .dapm_widgets = rt1316_dapm_widgets,
 619         .num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets),
 620         .dapm_routes = rt1316_dapm_routes,
 621         .num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes),
 622         .endianness = 1,
 623 };
 624
 625 static const struct snd_soc_dai_ops rt1316_aif_dai_ops = {
 626         .hw_params = rt1316_sdw_hw_params,
 627         .hw_free        = rt1316_sdw_pcm_hw_free,
 628         .set_stream     = rt1316_set_sdw_stream,
 629         .shutdown       = rt1316_sdw_shutdown,
 630 };
 631
 632 #define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000
 633 #define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
 634                         SNDRV_PCM_FMTBIT_S24_LE)
 635
 636 static struct snd_soc_dai_driver rt1316_sdw_dai[] = {
 637         {
 638                 .name = "rt1316-aif",
 639                 .playback = {
 640                         .stream_name = "DP1 Playback",
 641                         .channels_min = 1,
 642                         .channels_max = 2,
 643                         .rates = RT1316_STEREO_RATES,
 644                         .formats = RT1316_FORMATS,
 645                 },
 646                 .capture = {
 647                         .stream_name = "DP2 Capture",
 648                         .channels_min = 1,
 649                         .channels_max = 2,
 650                         .rates = RT1316_STEREO_RATES,
 651                         .formats = RT1316_FORMATS,
 652                 },
 653                 .ops = &rt1316_aif_dai_ops,
 654         },
 655 };
 656
 657 static int rt1316_sdw_init(struct device *dev, struct regmap *regmap,
 658                                 struct sdw_slave *slave)
 659 {
 660         struct rt1316_sdw_priv *rt1316;
 661         int ret;
 662
 663         rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL);
 664         if (!rt1316)
 665                 return -ENOMEM;
 666
 667         dev_set_drvdata(dev, rt1316);
 668         rt1316->sdw_slave = slave;
 669         rt1316->regmap = regmap;
 670
 671         regcache_cache_only(rt1316->regmap, true);
 672
 673         /*
 674          * Mark hw_init to false
 675          * HW init will be performed when device reports present
 676          */
 677         rt1316->hw_init = false;
 678         rt1316->first_hw_init = false;
 679
 680         ret =  devm_snd_soc_register_component(dev,
 681                                 &soc_component_sdw_rt1316,
 682                                 rt1316_sdw_dai,
 683                                 ARRAY_SIZE(rt1316_sdw_dai));
 684         if (ret < 0)
 685                 return ret;
 686
 687         /* set autosuspend parameters */
 688         pm_runtime_set_autosuspend_delay(dev, 3000);
 689         pm_runtime_use_autosuspend(dev);
 690
 691         /* make sure the device does not suspend immediately */
 692         pm_runtime_mark_last_busy(dev);
 693
 694         pm_runtime_enable(dev);
 695
 696         /* important note: the device is NOT tagged as 'active' and will remain
 697          * 'suspended' until the hardware is enumerated/initialized. This is required
 698          * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently
 699          * fail with -EACCESS because of race conditions between card creation and enumeration
 700          */
 701
 702         dev_dbg(dev, "%s\n", __func__);
 703
 704         return 0;
 705 }
 706
 707 static int rt1316_sdw_probe(struct sdw_slave *slave,
 708                                 const struct sdw_device_id *id)
 709 {
 710         struct regmap *regmap;
 711
 712         /* Regmap Initialization */
 713         regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap);
 714         if (IS_ERR(regmap))
 715                 return PTR_ERR(regmap);
 716
 717         return rt1316_sdw_init(&slave->dev, regmap, slave);
 718 }
 719
 720 static int rt1316_sdw_remove(struct sdw_slave *slave)
 721 {
 722         pm_runtime_disable(&slave->dev);
 723
 724         return 0;
 725 }
 726
 727 static const struct sdw_device_id rt1316_id[] = {
 728         SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0),
 729         {},
 730 };
 731 MODULE_DEVICE_TABLE(sdw, rt1316_id);
 732
 733 static int __maybe_unused rt1316_dev_suspend(struct device *dev)
 734 {
 735         struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
 736
 737         if (!rt1316->hw_init)
 738                 return 0;
 739
 740         regcache_cache_only(rt1316->regmap, true);
 741
 742         return 0;
 743 }
 744
 745 #define RT1316_PROBE_TIMEOUT 5000
 746
 747 static int __maybe_unused rt1316_dev_resume(struct device *dev)
 748 {
 749         struct sdw_slave *slave = dev_to_sdw_dev(dev);
 750         struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
 751         unsigned long time;
 752
 753         if (!rt1316->first_hw_init)
 754                 return 0;
 755
 756         if (!slave->unattach_request)
 757                 goto regmap_sync;
 758
 759         time = wait_for_completion_timeout(&slave->initialization_complete,
 760                                 msecs_to_jiffies(RT1316_PROBE_TIMEOUT));
 761         if (!time) {
 762                 dev_err(&slave->dev, "%s: Initialization not complete, timed out\n", __func__);
 763                 sdw_show_ping_status(slave->bus, true);
 764
 765                 return -ETIMEDOUT;
 766         }
 767
 768 regmap_sync:
 769         slave->unattach_request = 0;
 770         regcache_cache_only(rt1316->regmap, false);
 771         regcache_sync(rt1316->regmap);
 772
 773         return 0;
 774 }
 775
 776 static const struct dev_pm_ops rt1316_pm = {
 777         SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume)
 778         SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL)
 779 };
 780
 781 static struct sdw_driver rt1316_sdw_driver = {
 782         .driver = {
 783                 .name = "rt1316-sdca",
 784                 .pm = &rt1316_pm,
 785         },
 786         .probe = rt1316_sdw_probe,
 787         .remove = rt1316_sdw_remove,
 788         .ops = &rt1316_slave_ops,
 789         .id_table = rt1316_id,
 790 };
 791 module_sdw_driver(rt1316_sdw_driver);
 792
 793 MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW");
 794 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
 795 MODULE_LICENSE("GPL");