1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Socionext UniPhier EVEA ADC/DAC codec driver. 4 * 5 * Copyright (c) 2016-2017 Socionext Inc. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; version 2 10 * of the License. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include <linux/clk.h> 22 #include <linux/module.h> 23 #include <linux/of.h> 24 #include <linux/regmap.h> 25 #include <linux/reset.h> 26 #include <sound/pcm.h> 27 #include <sound/soc.h> 28 29 #define DRV_NAME "evea" 30 #define EVEA_RATES SNDRV_PCM_RATE_48000 31 #define EVEA_FORMATS SNDRV_PCM_FMTBIT_S32_LE 32 33 #define AADCPOW(n) (0x0078 + 0x04 * (n)) 34 #define AADCPOW_AADC_POWD BIT(0) 35 #define AHPOUTPOW 0x0098 36 #define AHPOUTPOW_HP_ON BIT(4) 37 #define ALINEPOW 0x009c 38 #define ALINEPOW_LIN2_POWD BIT(3) 39 #define ALINEPOW_LIN1_POWD BIT(4) 40 #define ALO1OUTPOW 0x00a8 41 #define ALO1OUTPOW_LO1_ON BIT(4) 42 #define ALO2OUTPOW 0x00ac 43 #define ALO2OUTPOW_ADAC2_MUTE BIT(0) 44 #define ALO2OUTPOW_LO2_ON BIT(4) 45 #define AANAPOW 0x00b8 46 #define AANAPOW_A_POWD BIT(4) 47 #define ADACSEQ1(n) (0x0144 + 0x40 * (n)) 48 #define ADACSEQ1_MMUTE BIT(1) 49 #define ADACSEQ2(n) (0x0160 + 0x40 * (n)) 50 #define ADACSEQ2_ADACIN_FIX BIT(0) 51 #define ADAC1ODC 0x0200 52 #define ADAC1ODC_HP_DIS_RES_MASK GENMASK(2, 1) 53 #define ADAC1ODC_HP_DIS_RES_OFF (0x0 << 1) 54 #define ADAC1ODC_HP_DIS_RES_ON (0x3 << 1) 55 #define ADAC1ODC_ADAC_RAMPCLT_MASK GENMASK(8, 7) 56 #define ADAC1ODC_ADAC_RAMPCLT_NORMAL (0x0 << 7) 57 #define ADAC1ODC_ADAC_RAMPCLT_REDUCE (0x1 << 7) 58 59 struct evea_priv { 60 struct clk *clk, *clk_exiv; 61 struct reset_control *rst, *rst_exiv, *rst_adamv; 62 struct regmap *regmap; 63 64 int switch_lin; 65 int switch_lo; 66 int switch_hp; 67 }; 68 69 static const struct snd_soc_dapm_widget evea_widgets[] = { 70 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), 71 SND_SOC_DAPM_INPUT("LIN1_LP"), 72 SND_SOC_DAPM_INPUT("LIN1_RP"), 73 SND_SOC_DAPM_INPUT("LIN2_LP"), 74 SND_SOC_DAPM_INPUT("LIN2_RP"), 75 SND_SOC_DAPM_INPUT("LIN3_LP"), 76 SND_SOC_DAPM_INPUT("LIN3_RP"), 77 78 SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0), 79 SND_SOC_DAPM_OUTPUT("HP1_L"), 80 SND_SOC_DAPM_OUTPUT("HP1_R"), 81 SND_SOC_DAPM_OUTPUT("LO2_L"), 82 SND_SOC_DAPM_OUTPUT("LO2_R"), 83 }; 84 85 static const struct snd_soc_dapm_route evea_routes[] = { 86 { "ADC", NULL, "LIN1_LP" }, 87 { "ADC", NULL, "LIN1_RP" }, 88 { "ADC", NULL, "LIN2_LP" }, 89 { "ADC", NULL, "LIN2_RP" }, 90 { "ADC", NULL, "LIN3_LP" }, 91 { "ADC", NULL, "LIN3_RP" }, 92 93 { "HP1_L", NULL, "DAC" }, 94 { "HP1_R", NULL, "DAC" }, 95 { "LO2_L", NULL, "DAC" }, 96 { "LO2_R", NULL, "DAC" }, 97 }; 98 99 static void evea_set_power_state_on(struct evea_priv *evea) 100 { 101 struct regmap *map = evea->regmap; 102 103 regmap_update_bits(map, AANAPOW, AANAPOW_A_POWD, 104 AANAPOW_A_POWD); 105 106 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK, 107 ADAC1ODC_HP_DIS_RES_ON); 108 109 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_ADAC_RAMPCLT_MASK, 110 ADAC1ODC_ADAC_RAMPCLT_REDUCE); 111 112 regmap_update_bits(map, ADACSEQ2(0), ADACSEQ2_ADACIN_FIX, 0); 113 regmap_update_bits(map, ADACSEQ2(1), ADACSEQ2_ADACIN_FIX, 0); 114 regmap_update_bits(map, ADACSEQ2(2), ADACSEQ2_ADACIN_FIX, 0); 115 } 116 117 static void evea_set_power_state_off(struct evea_priv *evea) 118 { 119 struct regmap *map = evea->regmap; 120 121 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK, 122 ADAC1ODC_HP_DIS_RES_ON); 123 124 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 125 ADACSEQ1_MMUTE); 126 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 127 ADACSEQ1_MMUTE); 128 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 129 ADACSEQ1_MMUTE); 130 131 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0); 132 regmap_update_bits(map, ALO2OUTPOW, ALO2OUTPOW_LO2_ON, 0); 133 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0); 134 } 135 136 static int evea_update_switch_lin(struct evea_priv *evea) 137 { 138 struct regmap *map = evea->regmap; 139 140 if (evea->switch_lin) { 141 regmap_update_bits(map, ALINEPOW, 142 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD, 143 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD); 144 145 regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 146 AADCPOW_AADC_POWD); 147 regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 148 AADCPOW_AADC_POWD); 149 } else { 150 regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 0); 151 regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 0); 152 153 regmap_update_bits(map, ALINEPOW, 154 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD, 0); 155 } 156 157 return 0; 158 } 159 160 static int evea_update_switch_lo(struct evea_priv *evea) 161 { 162 struct regmap *map = evea->regmap; 163 164 if (evea->switch_lo) { 165 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 0); 166 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 0); 167 168 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 169 ALO1OUTPOW_LO1_ON); 170 regmap_update_bits(map, ALO2OUTPOW, 171 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON, 172 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON); 173 } else { 174 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 175 ADACSEQ1_MMUTE); 176 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 177 ADACSEQ1_MMUTE); 178 179 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0); 180 regmap_update_bits(map, ALO2OUTPOW, 181 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON, 182 0); 183 } 184 185 return 0; 186 } 187 188 static int evea_update_switch_hp(struct evea_priv *evea) 189 { 190 struct regmap *map = evea->regmap; 191 192 if (evea->switch_hp) { 193 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 0); 194 195 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 196 AHPOUTPOW_HP_ON); 197 198 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK, 199 ADAC1ODC_HP_DIS_RES_OFF); 200 } else { 201 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK, 202 ADAC1ODC_HP_DIS_RES_ON); 203 204 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 205 ADACSEQ1_MMUTE); 206 207 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0); 208 } 209 210 return 0; 211 } 212 213 static void evea_update_switch_all(struct evea_priv *evea) 214 { 215 evea_update_switch_lin(evea); 216 evea_update_switch_lo(evea); 217 evea_update_switch_hp(evea); 218 } 219 220 static int evea_get_switch_lin(struct snd_kcontrol *kcontrol, 221 struct snd_ctl_elem_value *ucontrol) 222 { 223 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 224 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 225 226 ucontrol->value.integer.value[0] = evea->switch_lin; 227 228 return 0; 229 } 230 231 static int evea_set_switch_lin(struct snd_kcontrol *kcontrol, 232 struct snd_ctl_elem_value *ucontrol) 233 { 234 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 235 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 236 237 if (evea->switch_lin == ucontrol->value.integer.value[0]) 238 return 0; 239 240 evea->switch_lin = ucontrol->value.integer.value[0]; 241 242 return evea_update_switch_lin(evea); 243 } 244 245 static int evea_get_switch_lo(struct snd_kcontrol *kcontrol, 246 struct snd_ctl_elem_value *ucontrol) 247 { 248 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 249 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 250 251 ucontrol->value.integer.value[0] = evea->switch_lo; 252 253 return 0; 254 } 255 256 static int evea_set_switch_lo(struct snd_kcontrol *kcontrol, 257 struct snd_ctl_elem_value *ucontrol) 258 { 259 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 260 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 261 262 if (evea->switch_lo == ucontrol->value.integer.value[0]) 263 return 0; 264 265 evea->switch_lo = ucontrol->value.integer.value[0]; 266 267 return evea_update_switch_lo(evea); 268 } 269 270 static int evea_get_switch_hp(struct snd_kcontrol *kcontrol, 271 struct snd_ctl_elem_value *ucontrol) 272 { 273 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 274 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 275 276 ucontrol->value.integer.value[0] = evea->switch_hp; 277 278 return 0; 279 } 280 281 static int evea_set_switch_hp(struct snd_kcontrol *kcontrol, 282 struct snd_ctl_elem_value *ucontrol) 283 { 284 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 285 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 286 287 if (evea->switch_hp == ucontrol->value.integer.value[0]) 288 return 0; 289 290 evea->switch_hp = ucontrol->value.integer.value[0]; 291 292 return evea_update_switch_hp(evea); 293 } 294 295 static const struct snd_kcontrol_new evea_controls[] = { 296 SOC_SINGLE_BOOL_EXT("Line Capture Switch", 0, 297 evea_get_switch_lin, evea_set_switch_lin), 298 SOC_SINGLE_BOOL_EXT("Line Playback Switch", 0, 299 evea_get_switch_lo, evea_set_switch_lo), 300 SOC_SINGLE_BOOL_EXT("Headphone Playback Switch", 0, 301 evea_get_switch_hp, evea_set_switch_hp), 302 }; 303 304 static int evea_codec_probe(struct snd_soc_component *component) 305 { 306 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 307 308 evea->switch_lin = 1; 309 evea->switch_lo = 1; 310 evea->switch_hp = 1; 311 312 evea_set_power_state_on(evea); 313 evea_update_switch_all(evea); 314 315 return 0; 316 } 317 318 static int evea_codec_suspend(struct snd_soc_component *component) 319 { 320 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 321 322 evea_set_power_state_off(evea); 323 324 reset_control_assert(evea->rst_adamv); 325 reset_control_assert(evea->rst_exiv); 326 reset_control_assert(evea->rst); 327 328 clk_disable_unprepare(evea->clk_exiv); 329 clk_disable_unprepare(evea->clk); 330 331 return 0; 332 } 333 334 static int evea_codec_resume(struct snd_soc_component *component) 335 { 336 struct evea_priv *evea = snd_soc_component_get_drvdata(component); 337 int ret; 338 339 ret = clk_prepare_enable(evea->clk); 340 if (ret) 341 return ret; 342 343 ret = clk_prepare_enable(evea->clk_exiv); 344 if (ret) 345 goto err_out_clock; 346 347 ret = reset_control_deassert(evea->rst); 348 if (ret) 349 goto err_out_clock_exiv; 350 351 ret = reset_control_deassert(evea->rst_exiv); 352 if (ret) 353 goto err_out_reset; 354 355 ret = reset_control_deassert(evea->rst_adamv); 356 if (ret) 357 goto err_out_reset_exiv; 358 359 evea_set_power_state_on(evea); 360 evea_update_switch_all(evea); 361 362 return 0; 363 364 err_out_reset_exiv: 365 reset_control_assert(evea->rst_exiv); 366 367 err_out_reset: 368 reset_control_assert(evea->rst); 369 370 err_out_clock_exiv: 371 clk_disable_unprepare(evea->clk_exiv); 372 373 err_out_clock: 374 clk_disable_unprepare(evea->clk); 375 376 return ret; 377 } 378 379 static struct snd_soc_component_driver soc_codec_evea = { 380 .probe = evea_codec_probe, 381 .suspend = evea_codec_suspend, 382 .resume = evea_codec_resume, 383 .dapm_widgets = evea_widgets, 384 .num_dapm_widgets = ARRAY_SIZE(evea_widgets), 385 .dapm_routes = evea_routes, 386 .num_dapm_routes = ARRAY_SIZE(evea_routes), 387 .controls = evea_controls, 388 .num_controls = ARRAY_SIZE(evea_controls), 389 .idle_bias_on = 1, 390 .use_pmdown_time = 1, 391 .endianness = 1, 392 .non_legacy_dai_naming = 1, 393 }; 394 395 static struct snd_soc_dai_driver soc_dai_evea[] = { 396 { 397 .name = DRV_NAME "-line1", 398 .playback = { 399 .stream_name = "Line Out 1", 400 .formats = EVEA_FORMATS, 401 .rates = EVEA_RATES, 402 .channels_min = 2, 403 .channels_max = 2, 404 }, 405 .capture = { 406 .stream_name = "Line In 1", 407 .formats = EVEA_FORMATS, 408 .rates = EVEA_RATES, 409 .channels_min = 2, 410 .channels_max = 2, 411 }, 412 }, 413 { 414 .name = DRV_NAME "-hp1", 415 .playback = { 416 .stream_name = "Headphone 1", 417 .formats = EVEA_FORMATS, 418 .rates = EVEA_RATES, 419 .channels_min = 2, 420 .channels_max = 2, 421 }, 422 }, 423 { 424 .name = DRV_NAME "-lo2", 425 .playback = { 426 .stream_name = "Line Out 2", 427 .formats = EVEA_FORMATS, 428 .rates = EVEA_RATES, 429 .channels_min = 2, 430 .channels_max = 2, 431 }, 432 }, 433 }; 434 435 static const struct regmap_config evea_regmap_config = { 436 .reg_bits = 32, 437 .reg_stride = 4, 438 .val_bits = 32, 439 .max_register = 0xffc, 440 .cache_type = REGCACHE_NONE, 441 }; 442 443 static int evea_probe(struct platform_device *pdev) 444 { 445 struct evea_priv *evea; 446 struct resource *res; 447 void __iomem *preg; 448 int ret; 449 450 evea = devm_kzalloc(&pdev->dev, sizeof(struct evea_priv), GFP_KERNEL); 451 if (!evea) 452 return -ENOMEM; 453 454 evea->clk = devm_clk_get(&pdev->dev, "evea"); 455 if (IS_ERR(evea->clk)) 456 return PTR_ERR(evea->clk); 457 458 evea->clk_exiv = devm_clk_get(&pdev->dev, "exiv"); 459 if (IS_ERR(evea->clk_exiv)) 460 return PTR_ERR(evea->clk_exiv); 461 462 evea->rst = devm_reset_control_get_shared(&pdev->dev, "evea"); 463 if (IS_ERR(evea->rst)) 464 return PTR_ERR(evea->rst); 465 466 evea->rst_exiv = devm_reset_control_get_shared(&pdev->dev, "exiv"); 467 if (IS_ERR(evea->rst_exiv)) 468 return PTR_ERR(evea->rst_exiv); 469 470 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 471 preg = devm_ioremap_resource(&pdev->dev, res); 472 if (IS_ERR(preg)) 473 return PTR_ERR(preg); 474 475 evea->regmap = devm_regmap_init_mmio(&pdev->dev, preg, 476 &evea_regmap_config); 477 if (IS_ERR(evea->regmap)) 478 return PTR_ERR(evea->regmap); 479 480 ret = clk_prepare_enable(evea->clk); 481 if (ret) 482 return ret; 483 484 ret = clk_prepare_enable(evea->clk_exiv); 485 if (ret) 486 goto err_out_clock; 487 488 ret = reset_control_deassert(evea->rst); 489 if (ret) 490 goto err_out_clock_exiv; 491 492 ret = reset_control_deassert(evea->rst_exiv); 493 if (ret) 494 goto err_out_reset; 495 496 /* ADAMV will hangup if EXIV reset is asserted */ 497 evea->rst_adamv = devm_reset_control_get_shared(&pdev->dev, "adamv"); 498 if (IS_ERR(evea->rst_adamv)) { 499 ret = PTR_ERR(evea->rst_adamv); 500 goto err_out_reset_exiv; 501 } 502 503 ret = reset_control_deassert(evea->rst_adamv); 504 if (ret) 505 goto err_out_reset_exiv; 506 507 platform_set_drvdata(pdev, evea); 508 509 ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_evea, 510 soc_dai_evea, ARRAY_SIZE(soc_dai_evea)); 511 if (ret) 512 goto err_out_reset_adamv; 513 514 return 0; 515 516 err_out_reset_adamv: 517 reset_control_assert(evea->rst_adamv); 518 519 err_out_reset_exiv: 520 reset_control_assert(evea->rst_exiv); 521 522 err_out_reset: 523 reset_control_assert(evea->rst); 524 525 err_out_clock_exiv: 526 clk_disable_unprepare(evea->clk_exiv); 527 528 err_out_clock: 529 clk_disable_unprepare(evea->clk); 530 531 return ret; 532 } 533 534 static int evea_remove(struct platform_device *pdev) 535 { 536 struct evea_priv *evea = platform_get_drvdata(pdev); 537 538 reset_control_assert(evea->rst_adamv); 539 reset_control_assert(evea->rst_exiv); 540 reset_control_assert(evea->rst); 541 542 clk_disable_unprepare(evea->clk_exiv); 543 clk_disable_unprepare(evea->clk); 544 545 return 0; 546 } 547 548 static const struct of_device_id evea_of_match[] = { 549 { .compatible = "socionext,uniphier-evea", }, 550 {} 551 }; 552 MODULE_DEVICE_TABLE(of, evea_of_match); 553 554 static struct platform_driver evea_codec_driver = { 555 .driver = { 556 .name = DRV_NAME, 557 .of_match_table = of_match_ptr(evea_of_match), 558 }, 559 .probe = evea_probe, 560 .remove = evea_remove, 561 }; 562 module_platform_driver(evea_codec_driver); 563 564 MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>"); 565 MODULE_DESCRIPTION("UniPhier EVEA codec driver"); 566 MODULE_LICENSE("GPL v2"); 567