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 40 static 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 59 static 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 75 static 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 90 struct sdw_stream_data { 91 struct sdw_stream_runtime *sdw_stream; 92 }; 93 94 static 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 } 116 117 static 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 } 126 127 static 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 } 256 257 static 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 } 271 272 static 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 }; 278 279 static 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 }; 331 332 static 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 } 376 377 static 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); 486 487 reinit: 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; 494 495 err_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 } 503 504 static 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 } 519 520 static 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 }; 530 531 static 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 } 552 553 static 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 624 625 static 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 } 662 663 static 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 } 677 678 static 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 } 695 696 static 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 }; 702 703 static 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 } 717 718 static int rt5682_sdw_remove(struct sdw_slave *slave) 719 { 720 struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev); 721 722 if (rt5682->hw_init) 723 cancel_delayed_work_sync(&rt5682->jack_detect_work); 724 725 if (rt5682->first_hw_init) 726 pm_runtime_disable(&slave->dev); 727 728 return 0; 729 } 730 731 static const struct sdw_device_id rt5682_id[] = { 732 SDW_SLAVE_ENTRY_EXT(0x025d, 0x5682, 0x2, 0, 0), 733 {}, 734 }; 735 MODULE_DEVICE_TABLE(sdw, rt5682_id); 736 737 static int __maybe_unused rt5682_dev_suspend(struct device *dev) 738 { 739 struct rt5682_priv *rt5682 = dev_get_drvdata(dev); 740 741 if (!rt5682->hw_init) 742 return 0; 743 744 cancel_delayed_work_sync(&rt5682->jack_detect_work); 745 746 regcache_cache_only(rt5682->regmap, true); 747 regcache_mark_dirty(rt5682->regmap); 748 749 return 0; 750 } 751 752 static int __maybe_unused rt5682_dev_system_suspend(struct device *dev) 753 { 754 struct rt5682_priv *rt5682 = dev_get_drvdata(dev); 755 struct sdw_slave *slave = dev_to_sdw_dev(dev); 756 int ret; 757 758 if (!rt5682->hw_init) 759 return 0; 760 761 /* 762 * prevent new interrupts from being handled after the 763 * deferred work completes and before the parent disables 764 * interrupts on the link 765 */ 766 mutex_lock(&rt5682->disable_irq_lock); 767 rt5682->disable_irq = true; 768 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, 769 SDW_SCP_INT1_IMPL_DEF, 0); 770 mutex_unlock(&rt5682->disable_irq_lock); 771 772 if (ret < 0) { 773 /* log but don't prevent suspend from happening */ 774 dev_dbg(&slave->dev, "%s: could not disable imp-def interrupts\n:", __func__); 775 } 776 777 return rt5682_dev_suspend(dev); 778 } 779 780 static int __maybe_unused rt5682_dev_resume(struct device *dev) 781 { 782 struct sdw_slave *slave = dev_to_sdw_dev(dev); 783 struct rt5682_priv *rt5682 = dev_get_drvdata(dev); 784 unsigned long time; 785 786 if (!rt5682->first_hw_init) 787 return 0; 788 789 if (!slave->unattach_request) 790 goto regmap_sync; 791 792 time = wait_for_completion_timeout(&slave->initialization_complete, 793 msecs_to_jiffies(RT5682_PROBE_TIMEOUT)); 794 if (!time) { 795 dev_err(&slave->dev, "Initialization not complete, timed out\n"); 796 sdw_show_ping_status(slave->bus, true); 797 798 return -ETIMEDOUT; 799 } 800 801 regmap_sync: 802 slave->unattach_request = 0; 803 regcache_cache_only(rt5682->regmap, false); 804 regcache_sync(rt5682->regmap); 805 806 return 0; 807 } 808 809 static const struct dev_pm_ops rt5682_pm = { 810 SET_SYSTEM_SLEEP_PM_OPS(rt5682_dev_system_suspend, rt5682_dev_resume) 811 SET_RUNTIME_PM_OPS(rt5682_dev_suspend, rt5682_dev_resume, NULL) 812 }; 813 814 static struct sdw_driver rt5682_sdw_driver = { 815 .driver = { 816 .name = "rt5682", 817 .owner = THIS_MODULE, 818 .pm = &rt5682_pm, 819 }, 820 .probe = rt5682_sdw_probe, 821 .remove = rt5682_sdw_remove, 822 .ops = &rt5682_slave_ops, 823 .id_table = rt5682_id, 824 }; 825 module_sdw_driver(rt5682_sdw_driver); 826 827 MODULE_DESCRIPTION("ASoC RT5682 driver SDW"); 828 MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>"); 829 MODULE_LICENSE("GPL v2"); 830