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