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 is only enabled when a Slave reports as Attached 281 */ 282 283 /* set autosuspend parameters */ 284 pm_runtime_set_autosuspend_delay(&slave->dev, 3000); 285 pm_runtime_use_autosuspend(&slave->dev); 286 287 /* update count of parent 'active' children */ 288 pm_runtime_set_active(&slave->dev); 289 290 /* make sure the device does not suspend immediately */ 291 pm_runtime_mark_last_busy(&slave->dev); 292 293 pm_runtime_enable(&slave->dev); 294 } 295 296 pm_runtime_get_noresume(&slave->dev); 297 298 /* sw reset */ 299 regmap_write(rt1316->regmap, 0xc000, 0x02); 300 301 /* initial settings - blind write */ 302 regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write, 303 ARRAY_SIZE(rt1316_blind_write)); 304 305 if (rt1316->first_hw_init) { 306 regcache_cache_bypass(rt1316->regmap, false); 307 regcache_mark_dirty(rt1316->regmap); 308 } else 309 rt1316->first_hw_init = true; 310 311 /* Mark Slave initialization complete */ 312 rt1316->hw_init = true; 313 314 pm_runtime_mark_last_busy(&slave->dev); 315 pm_runtime_put_autosuspend(&slave->dev); 316 317 dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); 318 return 0; 319 } 320 321 static int rt1316_update_status(struct sdw_slave *slave, 322 enum sdw_slave_status status) 323 { 324 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev); 325 326 if (status == SDW_SLAVE_UNATTACHED) 327 rt1316->hw_init = false; 328 329 /* 330 * Perform initialization only if slave status is present and 331 * hw_init flag is false 332 */ 333 if (rt1316->hw_init || status != SDW_SLAVE_ATTACHED) 334 return 0; 335 336 /* perform I/O transfers required for Slave initialization */ 337 return rt1316_io_init(&slave->dev, slave); 338 } 339 340 static int rt1316_classd_event(struct snd_soc_dapm_widget *w, 341 struct snd_kcontrol *kcontrol, int event) 342 { 343 struct snd_soc_component *component = 344 snd_soc_dapm_to_component(w->dapm); 345 struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); 346 unsigned char ps0 = 0x0, ps3 = 0x3; 347 348 switch (event) { 349 case SND_SOC_DAPM_POST_PMU: 350 regmap_write(rt1316->regmap, 351 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, 352 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 353 ps0); 354 regmap_write(rt1316->regmap, 355 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, 356 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 357 ps0); 358 regmap_write(rt1316->regmap, 359 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, 360 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 361 ps0); 362 break; 363 case SND_SOC_DAPM_PRE_PMD: 364 regmap_write(rt1316->regmap, 365 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, 366 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 367 ps3); 368 regmap_write(rt1316->regmap, 369 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, 370 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 371 ps3); 372 regmap_write(rt1316->regmap, 373 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, 374 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 375 ps3); 376 break; 377 378 default: 379 break; 380 } 381 382 return 0; 383 } 384 385 static int rt1316_pde24_event(struct snd_soc_dapm_widget *w, 386 struct snd_kcontrol *kcontrol, int event) 387 { 388 struct snd_soc_component *component = 389 snd_soc_dapm_to_component(w->dapm); 390 struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); 391 unsigned char ps0 = 0x0, ps3 = 0x3; 392 393 switch (event) { 394 case SND_SOC_DAPM_POST_PMU: 395 regmap_write(rt1316->regmap, 396 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, 397 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 398 ps0); 399 break; 400 case SND_SOC_DAPM_PRE_PMD: 401 regmap_write(rt1316->regmap, 402 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, 403 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 404 ps3); 405 break; 406 } 407 return 0; 408 } 409 410 static const char * const rt1316_rx_data_ch_select[] = { 411 "L,R", 412 "L,L", 413 "L,R", 414 "L,L+R", 415 "R,L", 416 "R,R", 417 "R,L+R", 418 "L+R,L", 419 "L+R,R", 420 "L+R,L+R", 421 }; 422 423 static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum, 424 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0, 425 rt1316_rx_data_ch_select); 426 427 static const char * const rt1316_dac_output_vol_select[] = { 428 "immediately", 429 "zero crossing", 430 "zero crossing with soft ramp", 431 }; 432 433 static SOC_ENUM_SINGLE_DECL(rt1316_dac_vol_ctl_enum, 434 0xc010, 6, rt1316_dac_output_vol_select); 435 436 static const struct snd_kcontrol_new rt1316_snd_controls[] = { 437 438 /* I2S Data Channel Selection */ 439 SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum), 440 441 /* XU24 Bypass Control */ 442 SOC_SINGLE("XU24 Bypass Switch", 443 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0), 444 445 /* Left/Right IV tag */ 446 SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0), 447 SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0), 448 SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0), 449 SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0), 450 451 /* IV mixer Control */ 452 SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1), 453 SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1), 454 455 /* DAC Output Volume Control */ 456 SOC_ENUM("DAC Output Vol Control", rt1316_dac_vol_ctl_enum), 457 }; 458 459 static const struct snd_kcontrol_new rt1316_sto_dac = 460 SOC_DAPM_DOUBLE_R("Switch", 461 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 462 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 463 0, 1, 1); 464 465 static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = { 466 /* Audio Interface */ 467 SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0), 468 SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0), 469 470 /* Digital Interface */ 471 SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac), 472 473 /* Output Lines */ 474 SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, 475 rt1316_classd_event, 476 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 477 SND_SOC_DAPM_OUTPUT("SPOL"), 478 SND_SOC_DAPM_OUTPUT("SPOR"), 479 480 SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0, 481 rt1316_pde24_event, 482 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 483 SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0), 484 SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0), 485 SND_SOC_DAPM_SIGGEN("I Gen"), 486 SND_SOC_DAPM_SIGGEN("V Gen"), 487 }; 488 489 static const struct snd_soc_dapm_route rt1316_dapm_routes[] = { 490 { "DAC", "Switch", "DP1RX" }, 491 { "CLASS D", NULL, "DAC" }, 492 { "SPOL", NULL, "CLASS D" }, 493 { "SPOR", NULL, "CLASS D" }, 494 495 { "I Sense", NULL, "I Gen" }, 496 { "V Sense", NULL, "V Gen" }, 497 { "I Sense", NULL, "PDE 24" }, 498 { "V Sense", NULL, "PDE 24" }, 499 { "DP2TX", NULL, "I Sense" }, 500 { "DP2TX", NULL, "V Sense" }, 501 }; 502 503 static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, 504 int direction) 505 { 506 snd_soc_dai_dma_data_set(dai, direction, sdw_stream); 507 508 return 0; 509 } 510 511 static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream, 512 struct snd_soc_dai *dai) 513 { 514 snd_soc_dai_set_dma_data(dai, substream, NULL); 515 } 516 517 static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream, 518 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 519 { 520 struct snd_soc_component *component = dai->component; 521 struct rt1316_sdw_priv *rt1316 = 522 snd_soc_component_get_drvdata(component); 523 struct sdw_stream_config stream_config = {0}; 524 struct sdw_port_config port_config = {0}; 525 struct sdw_stream_runtime *sdw_stream; 526 int retval; 527 528 dev_dbg(dai->dev, "%s %s", __func__, dai->name); 529 sdw_stream = snd_soc_dai_get_dma_data(dai, substream); 530 531 if (!sdw_stream) 532 return -EINVAL; 533 534 if (!rt1316->sdw_slave) 535 return -EINVAL; 536 537 /* SoundWire specific configuration */ 538 snd_sdw_params_to_config(substream, params, &stream_config, &port_config); 539 540 /* port 1 for playback */ 541 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 542 port_config.num = 1; 543 else 544 port_config.num = 2; 545 546 retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config, 547 &port_config, 1, sdw_stream); 548 if (retval) { 549 dev_err(dai->dev, "Unable to configure port\n"); 550 return retval; 551 } 552 553 return 0; 554 } 555 556 static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream, 557 struct snd_soc_dai *dai) 558 { 559 struct snd_soc_component *component = dai->component; 560 struct rt1316_sdw_priv *rt1316 = 561 snd_soc_component_get_drvdata(component); 562 struct sdw_stream_runtime *sdw_stream = 563 snd_soc_dai_get_dma_data(dai, substream); 564 565 if (!rt1316->sdw_slave) 566 return -EINVAL; 567 568 sdw_stream_remove_slave(rt1316->sdw_slave, sdw_stream); 569 return 0; 570 } 571 572 /* 573 * slave_ops: callbacks for get_clock_stop_mode, clock_stop and 574 * port_prep are not defined for now 575 */ 576 static const struct sdw_slave_ops rt1316_slave_ops = { 577 .read_prop = rt1316_read_prop, 578 .update_status = rt1316_update_status, 579 }; 580 581 static int rt1316_sdw_parse_dt(struct rt1316_sdw_priv *rt1316, struct device *dev) 582 { 583 int ret = 0; 584 585 device_property_read_u32(dev, "realtek,bq-params-cnt", &rt1316->bq_params_cnt); 586 if (rt1316->bq_params_cnt) { 587 rt1316->bq_params = devm_kzalloc(dev, rt1316->bq_params_cnt, GFP_KERNEL); 588 if (!rt1316->bq_params) { 589 dev_err(dev, "Could not allocate bq_params memory\n"); 590 ret = -ENOMEM; 591 } else { 592 ret = device_property_read_u8_array(dev, "realtek,bq-params", rt1316->bq_params, rt1316->bq_params_cnt); 593 if (ret < 0) 594 dev_err(dev, "Could not read list of realtek,bq-params\n"); 595 } 596 } 597 598 dev_dbg(dev, "bq_params_cnt=%d\n", rt1316->bq_params_cnt); 599 return ret; 600 } 601 602 static int rt1316_sdw_component_probe(struct snd_soc_component *component) 603 { 604 struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); 605 int ret; 606 607 rt1316->component = component; 608 rt1316_sdw_parse_dt(rt1316, &rt1316->sdw_slave->dev); 609 610 ret = pm_runtime_resume(component->dev); 611 if (ret < 0 && ret != -EACCES) 612 return ret; 613 614 /* apply BQ params */ 615 rt1316_apply_bq_params(rt1316); 616 617 return 0; 618 } 619 620 static const struct snd_soc_component_driver soc_component_sdw_rt1316 = { 621 .probe = rt1316_sdw_component_probe, 622 .controls = rt1316_snd_controls, 623 .num_controls = ARRAY_SIZE(rt1316_snd_controls), 624 .dapm_widgets = rt1316_dapm_widgets, 625 .num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets), 626 .dapm_routes = rt1316_dapm_routes, 627 .num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes), 628 .endianness = 1, 629 }; 630 631 static const struct snd_soc_dai_ops rt1316_aif_dai_ops = { 632 .hw_params = rt1316_sdw_hw_params, 633 .hw_free = rt1316_sdw_pcm_hw_free, 634 .set_stream = rt1316_set_sdw_stream, 635 .shutdown = rt1316_sdw_shutdown, 636 }; 637 638 #define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000 639 #define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ 640 SNDRV_PCM_FMTBIT_S24_LE) 641 642 static struct snd_soc_dai_driver rt1316_sdw_dai[] = { 643 { 644 .name = "rt1316-aif", 645 .playback = { 646 .stream_name = "DP1 Playback", 647 .channels_min = 1, 648 .channels_max = 2, 649 .rates = RT1316_STEREO_RATES, 650 .formats = RT1316_FORMATS, 651 }, 652 .capture = { 653 .stream_name = "DP2 Capture", 654 .channels_min = 1, 655 .channels_max = 2, 656 .rates = RT1316_STEREO_RATES, 657 .formats = RT1316_FORMATS, 658 }, 659 .ops = &rt1316_aif_dai_ops, 660 }, 661 }; 662 663 static int rt1316_sdw_init(struct device *dev, struct regmap *regmap, 664 struct sdw_slave *slave) 665 { 666 struct rt1316_sdw_priv *rt1316; 667 int ret; 668 669 rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL); 670 if (!rt1316) 671 return -ENOMEM; 672 673 dev_set_drvdata(dev, rt1316); 674 rt1316->sdw_slave = slave; 675 rt1316->regmap = regmap; 676 677 regcache_cache_only(rt1316->regmap, true); 678 679 /* 680 * Mark hw_init to false 681 * HW init will be performed when device reports present 682 */ 683 rt1316->hw_init = false; 684 rt1316->first_hw_init = false; 685 686 ret = devm_snd_soc_register_component(dev, 687 &soc_component_sdw_rt1316, 688 rt1316_sdw_dai, 689 ARRAY_SIZE(rt1316_sdw_dai)); 690 691 dev_dbg(&slave->dev, "%s\n", __func__); 692 693 return ret; 694 } 695 696 static int rt1316_sdw_probe(struct sdw_slave *slave, 697 const struct sdw_device_id *id) 698 { 699 struct regmap *regmap; 700 701 /* Regmap Initialization */ 702 regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap); 703 if (IS_ERR(regmap)) 704 return PTR_ERR(regmap); 705 706 return rt1316_sdw_init(&slave->dev, regmap, slave); 707 } 708 709 static int rt1316_sdw_remove(struct sdw_slave *slave) 710 { 711 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev); 712 713 if (rt1316->first_hw_init) 714 pm_runtime_disable(&slave->dev); 715 716 return 0; 717 } 718 719 static const struct sdw_device_id rt1316_id[] = { 720 SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0), 721 {}, 722 }; 723 MODULE_DEVICE_TABLE(sdw, rt1316_id); 724 725 static int __maybe_unused rt1316_dev_suspend(struct device *dev) 726 { 727 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); 728 729 if (!rt1316->hw_init) 730 return 0; 731 732 regcache_cache_only(rt1316->regmap, true); 733 734 return 0; 735 } 736 737 #define RT1316_PROBE_TIMEOUT 5000 738 739 static int __maybe_unused rt1316_dev_resume(struct device *dev) 740 { 741 struct sdw_slave *slave = dev_to_sdw_dev(dev); 742 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); 743 unsigned long time; 744 745 if (!rt1316->first_hw_init) 746 return 0; 747 748 if (!slave->unattach_request) 749 goto regmap_sync; 750 751 time = wait_for_completion_timeout(&slave->initialization_complete, 752 msecs_to_jiffies(RT1316_PROBE_TIMEOUT)); 753 if (!time) { 754 dev_err(&slave->dev, "Initialization not complete, timed out\n"); 755 sdw_show_ping_status(slave->bus, true); 756 757 return -ETIMEDOUT; 758 } 759 760 regmap_sync: 761 slave->unattach_request = 0; 762 regcache_cache_only(rt1316->regmap, false); 763 regcache_sync(rt1316->regmap); 764 765 return 0; 766 } 767 768 static const struct dev_pm_ops rt1316_pm = { 769 SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume) 770 SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL) 771 }; 772 773 static struct sdw_driver rt1316_sdw_driver = { 774 .driver = { 775 .name = "rt1316-sdca", 776 .owner = THIS_MODULE, 777 .pm = &rt1316_pm, 778 }, 779 .probe = rt1316_sdw_probe, 780 .remove = rt1316_sdw_remove, 781 .ops = &rt1316_slave_ops, 782 .id_table = rt1316_id, 783 }; 784 module_sdw_driver(rt1316_sdw_driver); 785 786 MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW"); 787 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); 788 MODULE_LICENSE("GPL"); 789