1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // rt1015.c -- RT1015 ALSA SoC audio amplifier driver 4 // 5 // Copyright 2019 Realtek Semiconductor Corp. 6 // 7 // Author: Jack Yu <jack.yu@realtek.com> 8 // 9 // 10 11 #include <linux/acpi.h> 12 #include <linux/delay.h> 13 #include <linux/firmware.h> 14 #include <linux/fs.h> 15 #include <linux/gpio.h> 16 #include <linux/i2c.h> 17 #include <linux/init.h> 18 #include <linux/module.h> 19 #include <linux/moduleparam.h> 20 #include <linux/platform_device.h> 21 #include <linux/pm.h> 22 #include <linux/regmap.h> 23 #include <sound/core.h> 24 #include <sound/initval.h> 25 #include <sound/pcm.h> 26 #include <sound/pcm_params.h> 27 #include <sound/rt1015.h> 28 #include <sound/soc-dapm.h> 29 #include <sound/soc.h> 30 #include <sound/tlv.h> 31 32 #include "rl6231.h" 33 #include "rt1015.h" 34 35 static const struct rt1015_platform_data i2s_default_platform_data = { 36 .power_up_delay_ms = 50, 37 }; 38 39 static const struct reg_default rt1015_reg[] = { 40 { 0x0000, 0x0000 }, 41 { 0x0004, 0xa000 }, 42 { 0x0006, 0x0003 }, 43 { 0x000a, 0x081e }, 44 { 0x000c, 0x0006 }, 45 { 0x000e, 0x0000 }, 46 { 0x0010, 0x0000 }, 47 { 0x0012, 0x0000 }, 48 { 0x0014, 0x0000 }, 49 { 0x0016, 0x0000 }, 50 { 0x0018, 0x0000 }, 51 { 0x0020, 0x8000 }, 52 { 0x0022, 0x8043 }, 53 { 0x0076, 0x0000 }, 54 { 0x0078, 0x0000 }, 55 { 0x007a, 0x0002 }, 56 { 0x007c, 0x10ec }, 57 { 0x007d, 0x1015 }, 58 { 0x00f0, 0x5000 }, 59 { 0x00f2, 0x004c }, 60 { 0x00f3, 0xecfe }, 61 { 0x00f4, 0x0000 }, 62 { 0x00f6, 0x0400 }, 63 { 0x0100, 0x0028 }, 64 { 0x0102, 0xff02 }, 65 { 0x0104, 0xa213 }, 66 { 0x0106, 0x200c }, 67 { 0x010c, 0x0000 }, 68 { 0x010e, 0x0058 }, 69 { 0x0111, 0x0200 }, 70 { 0x0112, 0x0400 }, 71 { 0x0114, 0x0022 }, 72 { 0x0116, 0x0000 }, 73 { 0x0118, 0x0000 }, 74 { 0x011a, 0x0123 }, 75 { 0x011c, 0x4567 }, 76 { 0x0300, 0x203d }, 77 { 0x0302, 0x001e }, 78 { 0x0311, 0x0000 }, 79 { 0x0313, 0x6014 }, 80 { 0x0314, 0x00a2 }, 81 { 0x031a, 0x00a0 }, 82 { 0x031c, 0x001f }, 83 { 0x031d, 0xffff }, 84 { 0x031e, 0x0000 }, 85 { 0x031f, 0x0000 }, 86 { 0x0320, 0x0000 }, 87 { 0x0321, 0x0000 }, 88 { 0x0322, 0xd7df }, 89 { 0x0328, 0x10b2 }, 90 { 0x0329, 0x0175 }, 91 { 0x032a, 0x36ad }, 92 { 0x032b, 0x7e55 }, 93 { 0x032c, 0x0520 }, 94 { 0x032d, 0xaa00 }, 95 { 0x032e, 0x570e }, 96 { 0x0330, 0xe180 }, 97 { 0x0332, 0x0034 }, 98 { 0x0334, 0x0001 }, 99 { 0x0336, 0x0010 }, 100 { 0x0338, 0x0000 }, 101 { 0x04fa, 0x0030 }, 102 { 0x04fc, 0x35c8 }, 103 { 0x04fe, 0x0800 }, 104 { 0x0500, 0x0400 }, 105 { 0x0502, 0x1000 }, 106 { 0x0504, 0x0000 }, 107 { 0x0506, 0x04ff }, 108 { 0x0508, 0x0010 }, 109 { 0x050a, 0x001a }, 110 { 0x0519, 0x1c68 }, 111 { 0x051a, 0x0ccc }, 112 { 0x051b, 0x0666 }, 113 { 0x051d, 0x0000 }, 114 { 0x051f, 0x0000 }, 115 { 0x0536, 0x061c }, 116 { 0x0538, 0x0000 }, 117 { 0x053a, 0x0000 }, 118 { 0x053c, 0x0000 }, 119 { 0x053d, 0x0000 }, 120 { 0x053e, 0x0000 }, 121 { 0x053f, 0x0000 }, 122 { 0x0540, 0x0000 }, 123 { 0x0541, 0x0000 }, 124 { 0x0542, 0x0000 }, 125 { 0x0543, 0x0000 }, 126 { 0x0544, 0x0000 }, 127 { 0x0568, 0x0000 }, 128 { 0x056a, 0x0000 }, 129 { 0x1000, 0x0040 }, 130 { 0x1002, 0x5405 }, 131 { 0x1006, 0x5515 }, 132 { 0x1007, 0x05f7 }, 133 { 0x1009, 0x0b0a }, 134 { 0x100a, 0x00ef }, 135 { 0x100d, 0x0003 }, 136 { 0x1010, 0xa433 }, 137 { 0x1020, 0x0000 }, 138 { 0x1200, 0x5a01 }, 139 { 0x1202, 0x6524 }, 140 { 0x1204, 0x1f00 }, 141 { 0x1206, 0x0000 }, 142 { 0x1208, 0x0000 }, 143 { 0x120a, 0x0000 }, 144 { 0x120c, 0x0000 }, 145 { 0x120e, 0x0000 }, 146 { 0x1210, 0x0000 }, 147 { 0x1212, 0x0000 }, 148 { 0x1300, 0x10a1 }, 149 { 0x1302, 0x12ff }, 150 { 0x1304, 0x0400 }, 151 { 0x1305, 0x0844 }, 152 { 0x1306, 0x4611 }, 153 { 0x1308, 0x555e }, 154 { 0x130a, 0x0000 }, 155 { 0x130c, 0x2000 }, 156 { 0x130e, 0x0100 }, 157 { 0x130f, 0x0001 }, 158 { 0x1310, 0x0000 }, 159 { 0x1312, 0x0000 }, 160 { 0x1314, 0x0000 }, 161 { 0x1316, 0x0000 }, 162 { 0x1318, 0x0000 }, 163 { 0x131a, 0x0000 }, 164 { 0x1322, 0x0029 }, 165 { 0x1323, 0x4a52 }, 166 { 0x1324, 0x002c }, 167 { 0x1325, 0x0b02 }, 168 { 0x1326, 0x002d }, 169 { 0x1327, 0x6b5a }, 170 { 0x1328, 0x002e }, 171 { 0x1329, 0xcbb2 }, 172 { 0x132a, 0x0030 }, 173 { 0x132b, 0x2c0b }, 174 { 0x1330, 0x0031 }, 175 { 0x1331, 0x8c63 }, 176 { 0x1332, 0x0032 }, 177 { 0x1333, 0xecbb }, 178 { 0x1334, 0x0034 }, 179 { 0x1335, 0x4d13 }, 180 { 0x1336, 0x0037 }, 181 { 0x1337, 0x0dc3 }, 182 { 0x1338, 0x003d }, 183 { 0x1339, 0xef7b }, 184 { 0x133a, 0x0044 }, 185 { 0x133b, 0xd134 }, 186 { 0x133c, 0x0047 }, 187 { 0x133d, 0x91e4 }, 188 { 0x133e, 0x004d }, 189 { 0x133f, 0xc370 }, 190 { 0x1340, 0x0053 }, 191 { 0x1341, 0xf4fd }, 192 { 0x1342, 0x0060 }, 193 { 0x1343, 0x5816 }, 194 { 0x1344, 0x006c }, 195 { 0x1345, 0xbb2e }, 196 { 0x1346, 0x0072 }, 197 { 0x1347, 0xecbb }, 198 { 0x1348, 0x0076 }, 199 { 0x1349, 0x5d97 }, 200 }; 201 202 static bool rt1015_volatile_register(struct device *dev, unsigned int reg) 203 { 204 switch (reg) { 205 case RT1015_RESET: 206 case RT1015_CLK_DET: 207 case RT1015_SIL_DET: 208 case RT1015_VER_ID: 209 case RT1015_VENDOR_ID: 210 case RT1015_DEVICE_ID: 211 case RT1015_PRO_ALT: 212 case RT1015_DAC3: 213 case RT1015_VBAT_TEST_OUT1: 214 case RT1015_VBAT_TEST_OUT2: 215 case RT1015_VBAT_PROT_ATT: 216 case RT1015_VBAT_DET_CODE: 217 case RT1015_SMART_BST_CTRL1: 218 case RT1015_SPK_DC_DETECT1: 219 case RT1015_SPK_DC_DETECT4: 220 case RT1015_SPK_DC_DETECT5: 221 case RT1015_DC_CALIB_CLSD1: 222 case RT1015_DC_CALIB_CLSD5: 223 case RT1015_DC_CALIB_CLSD6: 224 case RT1015_DC_CALIB_CLSD7: 225 case RT1015_DC_CALIB_CLSD8: 226 case RT1015_S_BST_TIMING_INTER1: 227 case RT1015_OSCK_STA: 228 case RT1015_MONO_DYNA_CTRL1: 229 case RT1015_MONO_DYNA_CTRL5: 230 return true; 231 232 default: 233 return false; 234 } 235 } 236 237 static bool rt1015_readable_register(struct device *dev, unsigned int reg) 238 { 239 switch (reg) { 240 case RT1015_RESET: 241 case RT1015_CLK2: 242 case RT1015_CLK3: 243 case RT1015_PLL1: 244 case RT1015_PLL2: 245 case RT1015_DUM_RW1: 246 case RT1015_DUM_RW2: 247 case RT1015_DUM_RW3: 248 case RT1015_DUM_RW4: 249 case RT1015_DUM_RW5: 250 case RT1015_DUM_RW6: 251 case RT1015_CLK_DET: 252 case RT1015_SIL_DET: 253 case RT1015_CUSTOMER_ID: 254 case RT1015_PCODE_FWVER: 255 case RT1015_VER_ID: 256 case RT1015_VENDOR_ID: 257 case RT1015_DEVICE_ID: 258 case RT1015_PAD_DRV1: 259 case RT1015_PAD_DRV2: 260 case RT1015_GAT_BOOST: 261 case RT1015_PRO_ALT: 262 case RT1015_OSCK_STA: 263 case RT1015_MAN_I2C: 264 case RT1015_DAC1: 265 case RT1015_DAC2: 266 case RT1015_DAC3: 267 case RT1015_ADC1: 268 case RT1015_ADC2: 269 case RT1015_TDM_MASTER: 270 case RT1015_TDM_TCON: 271 case RT1015_TDM1_1: 272 case RT1015_TDM1_2: 273 case RT1015_TDM1_3: 274 case RT1015_TDM1_4: 275 case RT1015_TDM1_5: 276 case RT1015_MIXER1: 277 case RT1015_MIXER2: 278 case RT1015_ANA_PROTECT1: 279 case RT1015_ANA_CTRL_SEQ1: 280 case RT1015_ANA_CTRL_SEQ2: 281 case RT1015_VBAT_DET_DEB: 282 case RT1015_VBAT_VOLT_DET1: 283 case RT1015_VBAT_VOLT_DET2: 284 case RT1015_VBAT_TEST_OUT1: 285 case RT1015_VBAT_TEST_OUT2: 286 case RT1015_VBAT_PROT_ATT: 287 case RT1015_VBAT_DET_CODE: 288 case RT1015_PWR1: 289 case RT1015_PWR4: 290 case RT1015_PWR5: 291 case RT1015_PWR6: 292 case RT1015_PWR7: 293 case RT1015_PWR8: 294 case RT1015_PWR9: 295 case RT1015_CLASSD_SEQ: 296 case RT1015_SMART_BST_CTRL1: 297 case RT1015_SMART_BST_CTRL2: 298 case RT1015_ANA_CTRL1: 299 case RT1015_ANA_CTRL2: 300 case RT1015_PWR_STATE_CTRL: 301 case RT1015_MONO_DYNA_CTRL: 302 case RT1015_MONO_DYNA_CTRL1: 303 case RT1015_MONO_DYNA_CTRL2: 304 case RT1015_MONO_DYNA_CTRL3: 305 case RT1015_MONO_DYNA_CTRL4: 306 case RT1015_MONO_DYNA_CTRL5: 307 case RT1015_SPK_VOL: 308 case RT1015_SHORT_DETTOP1: 309 case RT1015_SHORT_DETTOP2: 310 case RT1015_SPK_DC_DETECT1: 311 case RT1015_SPK_DC_DETECT2: 312 case RT1015_SPK_DC_DETECT3: 313 case RT1015_SPK_DC_DETECT4: 314 case RT1015_SPK_DC_DETECT5: 315 case RT1015_BAT_RPO_STEP1: 316 case RT1015_BAT_RPO_STEP2: 317 case RT1015_BAT_RPO_STEP3: 318 case RT1015_BAT_RPO_STEP4: 319 case RT1015_BAT_RPO_STEP5: 320 case RT1015_BAT_RPO_STEP6: 321 case RT1015_BAT_RPO_STEP7: 322 case RT1015_BAT_RPO_STEP8: 323 case RT1015_BAT_RPO_STEP9: 324 case RT1015_BAT_RPO_STEP10: 325 case RT1015_BAT_RPO_STEP11: 326 case RT1015_BAT_RPO_STEP12: 327 case RT1015_SPREAD_SPEC1: 328 case RT1015_SPREAD_SPEC2: 329 case RT1015_PAD_STATUS: 330 case RT1015_PADS_PULLING_CTRL1: 331 case RT1015_PADS_DRIVING: 332 case RT1015_SYS_RST1: 333 case RT1015_SYS_RST2: 334 case RT1015_SYS_GATING1: 335 case RT1015_TEST_MODE1: 336 case RT1015_TEST_MODE2: 337 case RT1015_TIMING_CTRL1: 338 case RT1015_PLL_INT: 339 case RT1015_TEST_OUT1: 340 case RT1015_DC_CALIB_CLSD1: 341 case RT1015_DC_CALIB_CLSD2: 342 case RT1015_DC_CALIB_CLSD3: 343 case RT1015_DC_CALIB_CLSD4: 344 case RT1015_DC_CALIB_CLSD5: 345 case RT1015_DC_CALIB_CLSD6: 346 case RT1015_DC_CALIB_CLSD7: 347 case RT1015_DC_CALIB_CLSD8: 348 case RT1015_DC_CALIB_CLSD9: 349 case RT1015_DC_CALIB_CLSD10: 350 case RT1015_CLSD_INTERNAL1: 351 case RT1015_CLSD_INTERNAL2: 352 case RT1015_CLSD_INTERNAL3: 353 case RT1015_CLSD_INTERNAL4: 354 case RT1015_CLSD_INTERNAL5: 355 case RT1015_CLSD_INTERNAL6: 356 case RT1015_CLSD_INTERNAL7: 357 case RT1015_CLSD_INTERNAL8: 358 case RT1015_CLSD_INTERNAL9: 359 case RT1015_CLSD_OCP_CTRL: 360 case RT1015_VREF_LV: 361 case RT1015_MBIAS1: 362 case RT1015_MBIAS2: 363 case RT1015_MBIAS3: 364 case RT1015_MBIAS4: 365 case RT1015_VREF_LV1: 366 case RT1015_S_BST_TIMING_INTER1: 367 case RT1015_S_BST_TIMING_INTER2: 368 case RT1015_S_BST_TIMING_INTER3: 369 case RT1015_S_BST_TIMING_INTER4: 370 case RT1015_S_BST_TIMING_INTER5: 371 case RT1015_S_BST_TIMING_INTER6: 372 case RT1015_S_BST_TIMING_INTER7: 373 case RT1015_S_BST_TIMING_INTER8: 374 case RT1015_S_BST_TIMING_INTER9: 375 case RT1015_S_BST_TIMING_INTER10: 376 case RT1015_S_BST_TIMING_INTER11: 377 case RT1015_S_BST_TIMING_INTER12: 378 case RT1015_S_BST_TIMING_INTER13: 379 case RT1015_S_BST_TIMING_INTER14: 380 case RT1015_S_BST_TIMING_INTER15: 381 case RT1015_S_BST_TIMING_INTER16: 382 case RT1015_S_BST_TIMING_INTER17: 383 case RT1015_S_BST_TIMING_INTER18: 384 case RT1015_S_BST_TIMING_INTER19: 385 case RT1015_S_BST_TIMING_INTER20: 386 case RT1015_S_BST_TIMING_INTER21: 387 case RT1015_S_BST_TIMING_INTER22: 388 case RT1015_S_BST_TIMING_INTER23: 389 case RT1015_S_BST_TIMING_INTER24: 390 case RT1015_S_BST_TIMING_INTER25: 391 case RT1015_S_BST_TIMING_INTER26: 392 case RT1015_S_BST_TIMING_INTER27: 393 case RT1015_S_BST_TIMING_INTER28: 394 case RT1015_S_BST_TIMING_INTER29: 395 case RT1015_S_BST_TIMING_INTER30: 396 case RT1015_S_BST_TIMING_INTER31: 397 case RT1015_S_BST_TIMING_INTER32: 398 case RT1015_S_BST_TIMING_INTER33: 399 case RT1015_S_BST_TIMING_INTER34: 400 case RT1015_S_BST_TIMING_INTER35: 401 case RT1015_S_BST_TIMING_INTER36: 402 return true; 403 404 default: 405 return false; 406 } 407 } 408 409 static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9525, 75, 0); 410 411 static const char * const rt1015_din_source_select[] = { 412 "Left", 413 "Right", 414 "Left + Right average", 415 }; 416 417 static SOC_ENUM_SINGLE_DECL(rt1015_mono_lr_sel, RT1015_PAD_DRV2, 4, 418 rt1015_din_source_select); 419 420 static const char * const rt1015_boost_mode[] = { 421 "Bypass", "Adaptive", "Fixed Adaptive" 422 }; 423 424 static SOC_ENUM_SINGLE_DECL(rt1015_boost_mode_enum, 0, 0, 425 rt1015_boost_mode); 426 427 static int rt1015_boost_mode_get(struct snd_kcontrol *kcontrol, 428 struct snd_ctl_elem_value *ucontrol) 429 { 430 struct snd_soc_component *component = 431 snd_soc_kcontrol_component(kcontrol); 432 struct rt1015_priv *rt1015 = 433 snd_soc_component_get_drvdata(component); 434 435 ucontrol->value.integer.value[0] = rt1015->boost_mode; 436 437 return 0; 438 } 439 440 static int rt1015_boost_mode_put(struct snd_kcontrol *kcontrol, 441 struct snd_ctl_elem_value *ucontrol) 442 { 443 struct snd_soc_component *component = 444 snd_soc_kcontrol_component(kcontrol); 445 struct rt1015_priv *rt1015 = 446 snd_soc_component_get_drvdata(component); 447 int boost_mode = ucontrol->value.integer.value[0]; 448 449 switch (boost_mode) { 450 case BYPASS: 451 snd_soc_component_update_bits(component, 452 RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK | 453 RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK, 454 RT1015_ABST_REG_MODE | RT1015_ABST_FIX_TGT_DIS | 455 RT1015_BYPASS_SWRREG_BYPASS); 456 break; 457 case ADAPTIVE: 458 snd_soc_component_update_bits(component, 459 RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK | 460 RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK, 461 RT1015_ABST_AUTO_MODE | RT1015_ABST_FIX_TGT_DIS | 462 RT1015_BYPASS_SWRREG_PASS); 463 break; 464 case FIXED_ADAPTIVE: 465 snd_soc_component_update_bits(component, 466 RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK | 467 RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK, 468 RT1015_ABST_AUTO_MODE | RT1015_ABST_FIX_TGT_EN | 469 RT1015_BYPASS_SWRREG_PASS); 470 break; 471 default: 472 dev_err(component->dev, "Unknown boost control.\n"); 473 return -EINVAL; 474 } 475 476 rt1015->boost_mode = boost_mode; 477 478 return 0; 479 } 480 481 static int rt1015_bypass_boost_get(struct snd_kcontrol *kcontrol, 482 struct snd_ctl_elem_value *ucontrol) 483 { 484 struct snd_soc_component *component = 485 snd_soc_kcontrol_component(kcontrol); 486 struct rt1015_priv *rt1015 = 487 snd_soc_component_get_drvdata(component); 488 489 ucontrol->value.integer.value[0] = rt1015->bypass_boost; 490 491 return 0; 492 } 493 494 static void rt1015_calibrate(struct rt1015_priv *rt1015) 495 { 496 struct snd_soc_component *component = rt1015->component; 497 struct regmap *regmap = rt1015->regmap; 498 499 snd_soc_dapm_mutex_lock(&component->dapm); 500 regcache_cache_bypass(regmap, true); 501 502 regmap_write(regmap, RT1015_CLK_DET, 0x0000); 503 regmap_write(regmap, RT1015_PWR4, 0x00B2); 504 regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x0009); 505 msleep(100); 506 regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x000A); 507 msleep(100); 508 regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x000C); 509 msleep(100); 510 regmap_write(regmap, RT1015_CLSD_INTERNAL8, 0x2028); 511 regmap_write(regmap, RT1015_CLSD_INTERNAL9, 0x0140); 512 regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x000D); 513 msleep(300); 514 regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x0008); 515 regmap_write(regmap, RT1015_SYS_RST1, 0x05F5); 516 517 regcache_cache_bypass(regmap, false); 518 regcache_mark_dirty(regmap); 519 regcache_sync(regmap); 520 snd_soc_dapm_mutex_unlock(&component->dapm); 521 } 522 523 static int rt1015_bypass_boost_put(struct snd_kcontrol *kcontrol, 524 struct snd_ctl_elem_value *ucontrol) 525 { 526 struct snd_soc_component *component = 527 snd_soc_kcontrol_component(kcontrol); 528 struct rt1015_priv *rt1015 = 529 snd_soc_component_get_drvdata(component); 530 531 if (rt1015->dac_is_used) { 532 dev_err(component->dev, "DAC is being used!\n"); 533 return -EBUSY; 534 } 535 536 rt1015->bypass_boost = ucontrol->value.integer.value[0]; 537 if (rt1015->bypass_boost == RT1015_Bypass_Boost && 538 !rt1015->cali_done) { 539 rt1015_calibrate(rt1015); 540 rt1015->cali_done = 1; 541 542 regmap_write(rt1015->regmap, RT1015_MONO_DYNA_CTRL, 0x0010); 543 } 544 545 return 0; 546 } 547 548 static void rt1015_flush_work(struct work_struct *work) 549 { 550 struct rt1015_priv *rt1015 = container_of(work, struct rt1015_priv, 551 flush_work.work); 552 struct snd_soc_component *component = rt1015->component; 553 unsigned int val, i; 554 555 for (i = 0; i < 200; ++i) { 556 usleep_range(1000, 1500); 557 dev_dbg(component->dev, "Flush DAC (retry:%u)\n", i); 558 regmap_read(rt1015->regmap, RT1015_CLK_DET, &val); 559 if (val & 0x800) 560 break; 561 } 562 563 regmap_write(rt1015->regmap, RT1015_SYS_RST1, 0x0597); 564 regmap_write(rt1015->regmap, RT1015_SYS_RST1, 0x05f7); 565 regmap_write(rt1015->regmap, RT1015_MAN_I2C, 0x0028); 566 567 if (val & 0x800) 568 dev_dbg(component->dev, "Flush DAC completed.\n"); 569 else 570 dev_warn(component->dev, "Fail to flush DAC data.\n"); 571 } 572 573 static const struct snd_kcontrol_new rt1015_snd_controls[] = { 574 SOC_SINGLE_TLV("DAC Playback Volume", RT1015_DAC1, RT1015_DAC_VOL_SFT, 575 127, 0, dac_vol_tlv), 576 SOC_DOUBLE("DAC Playback Switch", RT1015_DAC3, 577 RT1015_DA_MUTE_SFT, RT1015_DVOL_MUTE_FLAG_SFT, 1, 1), 578 SOC_ENUM_EXT("Boost Mode", rt1015_boost_mode_enum, 579 rt1015_boost_mode_get, rt1015_boost_mode_put), 580 SOC_ENUM("Mono LR Select", rt1015_mono_lr_sel), 581 SOC_SINGLE_EXT("Bypass Boost", SND_SOC_NOPM, 0, 1, 0, 582 rt1015_bypass_boost_get, rt1015_bypass_boost_put), 583 }; 584 585 static int rt1015_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source, 586 struct snd_soc_dapm_widget *sink) 587 { 588 struct snd_soc_component *component = 589 snd_soc_dapm_to_component(source->dapm); 590 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 591 592 if (rt1015->sysclk_src == RT1015_SCLK_S_PLL) 593 return 1; 594 else 595 return 0; 596 } 597 598 static int r1015_dac_event(struct snd_soc_dapm_widget *w, 599 struct snd_kcontrol *kcontrol, int event) 600 { 601 struct snd_soc_component *component = 602 snd_soc_dapm_to_component(w->dapm); 603 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 604 605 switch (event) { 606 case SND_SOC_DAPM_PRE_PMU: 607 rt1015->dac_is_used = 1; 608 if (rt1015->bypass_boost == RT1015_Enable_Boost) { 609 snd_soc_component_write(component, 610 RT1015_SYS_RST1, 0x05f7); 611 snd_soc_component_write(component, 612 RT1015_SYS_RST2, 0x0b0a); 613 snd_soc_component_write(component, 614 RT1015_GAT_BOOST, 0xacfe); 615 snd_soc_component_write(component, 616 RT1015_PWR9, 0xaa00); 617 snd_soc_component_write(component, 618 RT1015_GAT_BOOST, 0xecfe); 619 } else { 620 snd_soc_component_write(component, 621 0x032d, 0xaa60); 622 snd_soc_component_write(component, 623 RT1015_SYS_RST1, 0x05f7); 624 snd_soc_component_write(component, 625 RT1015_SYS_RST2, 0x0b0a); 626 snd_soc_component_write(component, 627 RT1015_PWR_STATE_CTRL, 0x008e); 628 } 629 break; 630 631 case SND_SOC_DAPM_POST_PMU: 632 regmap_write(rt1015->regmap, RT1015_MAN_I2C, 0x00a8); 633 break; 634 635 case SND_SOC_DAPM_POST_PMD: 636 if (rt1015->bypass_boost == RT1015_Enable_Boost) { 637 snd_soc_component_write(component, 638 RT1015_PWR9, 0xa800); 639 snd_soc_component_write(component, 640 RT1015_SYS_RST1, 0x05f5); 641 snd_soc_component_write(component, 642 RT1015_SYS_RST2, 0x0b9a); 643 } else { 644 snd_soc_component_write(component, 645 0x032d, 0xaa60); 646 snd_soc_component_write(component, 647 RT1015_PWR_STATE_CTRL, 0x0088); 648 snd_soc_component_write(component, 649 RT1015_SYS_RST1, 0x05f5); 650 snd_soc_component_write(component, 651 RT1015_SYS_RST2, 0x0b9a); 652 } 653 rt1015->dac_is_used = 0; 654 655 cancel_delayed_work_sync(&rt1015->flush_work); 656 break; 657 658 default: 659 break; 660 } 661 return 0; 662 } 663 664 static int rt1015_amp_drv_event(struct snd_soc_dapm_widget *w, 665 struct snd_kcontrol *kcontrol, int event) 666 { 667 struct snd_soc_component *component = 668 snd_soc_dapm_to_component(w->dapm); 669 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 670 671 switch (event) { 672 case SND_SOC_DAPM_POST_PMU: 673 if (rt1015->hw_config == RT1015_HW_28) 674 schedule_delayed_work(&rt1015->flush_work, msecs_to_jiffies(10)); 675 msleep(rt1015->pdata.power_up_delay_ms); 676 break; 677 default: 678 break; 679 } 680 return 0; 681 } 682 683 static const struct snd_soc_dapm_widget rt1015_dapm_widgets[] = { 684 SND_SOC_DAPM_SUPPLY("PLL", RT1015_PWR1, RT1015_PWR_PLL_BIT, 0, 685 NULL, 0), 686 SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0), 687 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, 688 r1015_dac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | 689 SND_SOC_DAPM_POST_PMD), 690 SND_SOC_DAPM_OUT_DRV_E("Amp Drv", SND_SOC_NOPM, 0, 0, NULL, 0, 691 rt1015_amp_drv_event, SND_SOC_DAPM_POST_PMU), 692 SND_SOC_DAPM_OUTPUT("SPO"), 693 }; 694 695 static const struct snd_soc_dapm_route rt1015_dapm_routes[] = { 696 { "DAC", NULL, "AIFRX" }, 697 { "DAC", NULL, "PLL", rt1015_is_sys_clk_from_pll}, 698 { "Amp Drv", NULL, "DAC" }, 699 { "SPO", NULL, "Amp Drv" }, 700 }; 701 702 static int rt1015_hw_params(struct snd_pcm_substream *substream, 703 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 704 { 705 struct snd_soc_component *component = dai->component; 706 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 707 int pre_div, bclk_ms, frame_size, lrck; 708 unsigned int val_len = 0; 709 710 lrck = params_rate(params); 711 pre_div = rl6231_get_clk_info(rt1015->sysclk, lrck); 712 if (pre_div < 0) { 713 dev_err(component->dev, "Unsupported clock rate\n"); 714 return -EINVAL; 715 } 716 717 frame_size = snd_soc_params_to_frame_size(params); 718 if (frame_size < 0) { 719 dev_err(component->dev, "Unsupported frame size: %d\n", 720 frame_size); 721 return -EINVAL; 722 } 723 724 bclk_ms = frame_size > 32; 725 726 dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", 727 bclk_ms, pre_div, dai->id); 728 729 dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n", 730 lrck, pre_div, dai->id); 731 732 switch (params_width(params)) { 733 case 16: 734 break; 735 case 20: 736 val_len = RT1015_I2S_DL_20; 737 break; 738 case 24: 739 val_len = RT1015_I2S_DL_24; 740 break; 741 case 8: 742 val_len = RT1015_I2S_DL_8; 743 break; 744 default: 745 return -EINVAL; 746 } 747 748 snd_soc_component_update_bits(component, RT1015_TDM_MASTER, 749 RT1015_I2S_DL_MASK, val_len); 750 snd_soc_component_update_bits(component, RT1015_CLK2, 751 RT1015_FS_PD_MASK, pre_div << RT1015_FS_PD_SFT); 752 753 return 0; 754 } 755 756 static int rt1015_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 757 { 758 struct snd_soc_component *component = dai->component; 759 unsigned int reg_val = 0, reg_val2 = 0; 760 761 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 762 case SND_SOC_DAIFMT_CBM_CFM: 763 reg_val |= RT1015_TCON_TDM_MS_M; 764 break; 765 case SND_SOC_DAIFMT_CBS_CFS: 766 reg_val |= RT1015_TCON_TDM_MS_S; 767 break; 768 default: 769 return -EINVAL; 770 } 771 772 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 773 case SND_SOC_DAIFMT_NB_NF: 774 break; 775 case SND_SOC_DAIFMT_IB_NF: 776 reg_val2 |= RT1015_TDM_INV_BCLK; 777 break; 778 default: 779 return -EINVAL; 780 } 781 782 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 783 case SND_SOC_DAIFMT_I2S: 784 break; 785 786 case SND_SOC_DAIFMT_LEFT_J: 787 reg_val |= RT1015_I2S_M_DF_LEFT; 788 break; 789 790 case SND_SOC_DAIFMT_DSP_A: 791 reg_val |= RT1015_I2S_M_DF_PCM_A; 792 break; 793 794 case SND_SOC_DAIFMT_DSP_B: 795 reg_val |= RT1015_I2S_M_DF_PCM_B; 796 break; 797 798 default: 799 return -EINVAL; 800 } 801 802 snd_soc_component_update_bits(component, RT1015_TDM_MASTER, 803 RT1015_TCON_TDM_MS_MASK | RT1015_I2S_M_DF_MASK, 804 reg_val); 805 snd_soc_component_update_bits(component, RT1015_TDM1_1, 806 RT1015_TDM_INV_BCLK_MASK, reg_val2); 807 808 return 0; 809 } 810 811 static int rt1015_set_component_sysclk(struct snd_soc_component *component, 812 int clk_id, int source, unsigned int freq, int dir) 813 { 814 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 815 unsigned int reg_val = 0; 816 817 if (freq == rt1015->sysclk && clk_id == rt1015->sysclk_src) 818 return 0; 819 820 switch (clk_id) { 821 case RT1015_SCLK_S_MCLK: 822 reg_val |= RT1015_CLK_SYS_PRE_SEL_MCLK; 823 break; 824 825 case RT1015_SCLK_S_PLL: 826 reg_val |= RT1015_CLK_SYS_PRE_SEL_PLL; 827 break; 828 829 default: 830 dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); 831 return -EINVAL; 832 } 833 834 rt1015->sysclk = freq; 835 rt1015->sysclk_src = clk_id; 836 837 dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n", 838 freq, clk_id); 839 840 snd_soc_component_update_bits(component, RT1015_CLK2, 841 RT1015_CLK_SYS_PRE_SEL_MASK, reg_val); 842 843 return 0; 844 } 845 846 static int rt1015_set_component_pll(struct snd_soc_component *component, 847 int pll_id, int source, unsigned int freq_in, 848 unsigned int freq_out) 849 { 850 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 851 struct rl6231_pll_code pll_code; 852 int ret; 853 854 if (!freq_in || !freq_out) { 855 dev_dbg(component->dev, "PLL disabled\n"); 856 857 rt1015->pll_in = 0; 858 rt1015->pll_out = 0; 859 860 return 0; 861 } 862 863 if (source == rt1015->pll_src && freq_in == rt1015->pll_in && 864 freq_out == rt1015->pll_out) 865 return 0; 866 867 switch (source) { 868 case RT1015_PLL_S_MCLK: 869 snd_soc_component_update_bits(component, RT1015_CLK2, 870 RT1015_PLL_SEL_MASK, RT1015_PLL_SEL_PLL_SRC2); 871 break; 872 873 case RT1015_PLL_S_BCLK: 874 snd_soc_component_update_bits(component, RT1015_CLK2, 875 RT1015_PLL_SEL_MASK, RT1015_PLL_SEL_BCLK); 876 break; 877 878 default: 879 dev_err(component->dev, "Unknown PLL Source %d\n", source); 880 return -EINVAL; 881 } 882 883 ret = rl6231_pll_calc(freq_in, freq_out, &pll_code); 884 if (ret < 0) { 885 dev_err(component->dev, "Unsupport input clock %d\n", freq_in); 886 return ret; 887 } 888 889 dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n", 890 pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), 891 pll_code.n_code, pll_code.k_code); 892 893 snd_soc_component_write(component, RT1015_PLL1, 894 (pll_code.m_bp ? 0 : pll_code.m_code) << RT1015_PLL_M_SFT | 895 pll_code.m_bp << RT1015_PLL_M_BP_SFT | pll_code.n_code); 896 snd_soc_component_write(component, RT1015_PLL2, 897 pll_code.k_code); 898 899 rt1015->pll_in = freq_in; 900 rt1015->pll_out = freq_out; 901 rt1015->pll_src = source; 902 903 return 0; 904 } 905 906 static int rt1015_set_tdm_slot(struct snd_soc_dai *dai, 907 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) 908 { 909 struct snd_soc_component *component = dai->component; 910 unsigned int val = 0, rx_slotnum, tx_slotnum; 911 int ret = 0, first_bit; 912 913 switch (slots) { 914 case 2: 915 val |= RT1015_I2S_TX_2CH; 916 break; 917 case 4: 918 val |= RT1015_I2S_TX_4CH; 919 break; 920 case 6: 921 val |= RT1015_I2S_TX_6CH; 922 break; 923 case 8: 924 val |= RT1015_I2S_TX_8CH; 925 break; 926 default: 927 ret = -EINVAL; 928 goto _set_tdm_err_; 929 } 930 931 switch (slot_width) { 932 case 16: 933 val |= RT1015_I2S_CH_TX_LEN_16B; 934 break; 935 case 20: 936 val |= RT1015_I2S_CH_TX_LEN_20B; 937 break; 938 case 24: 939 val |= RT1015_I2S_CH_TX_LEN_24B; 940 break; 941 case 32: 942 val |= RT1015_I2S_CH_TX_LEN_32B; 943 break; 944 default: 945 ret = -EINVAL; 946 goto _set_tdm_err_; 947 } 948 949 /* Rx slot configuration */ 950 rx_slotnum = hweight_long(rx_mask); 951 if (rx_slotnum != 1) { 952 ret = -EINVAL; 953 dev_err(component->dev, "too many rx slots or zero slot\n"); 954 goto _set_tdm_err_; 955 } 956 957 /* This is an assumption that the system sends stereo audio to the amplifier typically. 958 * And the stereo audio is placed in slot 0/2/4/6 as the starting slot. 959 * The users could select the channel from L/R/L+R by "Mono LR Select" control. 960 */ 961 first_bit = __ffs(rx_mask); 962 switch (first_bit) { 963 case 0: 964 case 2: 965 case 4: 966 case 6: 967 snd_soc_component_update_bits(component, 968 RT1015_TDM1_4, 969 RT1015_TDM_I2S_TX_L_DAC1_1_MASK | 970 RT1015_TDM_I2S_TX_R_DAC1_1_MASK, 971 (first_bit << RT1015_TDM_I2S_TX_L_DAC1_1_SFT) | 972 ((first_bit+1) << RT1015_TDM_I2S_TX_R_DAC1_1_SFT)); 973 break; 974 case 1: 975 case 3: 976 case 5: 977 case 7: 978 snd_soc_component_update_bits(component, 979 RT1015_TDM1_4, 980 RT1015_TDM_I2S_TX_L_DAC1_1_MASK | 981 RT1015_TDM_I2S_TX_R_DAC1_1_MASK, 982 ((first_bit-1) << RT1015_TDM_I2S_TX_L_DAC1_1_SFT) | 983 (first_bit << RT1015_TDM_I2S_TX_R_DAC1_1_SFT)); 984 break; 985 default: 986 ret = -EINVAL; 987 goto _set_tdm_err_; 988 } 989 990 /* Tx slot configuration */ 991 tx_slotnum = hweight_long(tx_mask); 992 if (tx_slotnum) { 993 ret = -EINVAL; 994 dev_err(component->dev, "doesn't need to support tx slots\n"); 995 goto _set_tdm_err_; 996 } 997 998 snd_soc_component_update_bits(component, RT1015_TDM1_1, 999 RT1015_I2S_CH_TX_MASK | RT1015_I2S_CH_RX_MASK | 1000 RT1015_I2S_CH_TX_LEN_MASK | RT1015_I2S_CH_RX_LEN_MASK, val); 1001 1002 _set_tdm_err_: 1003 return ret; 1004 } 1005 1006 static int rt1015_probe(struct snd_soc_component *component) 1007 { 1008 struct rt1015_priv *rt1015 = 1009 snd_soc_component_get_drvdata(component); 1010 1011 rt1015->component = component; 1012 INIT_DELAYED_WORK(&rt1015->flush_work, rt1015_flush_work); 1013 1014 return 0; 1015 } 1016 1017 static void rt1015_remove(struct snd_soc_component *component) 1018 { 1019 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 1020 1021 cancel_delayed_work_sync(&rt1015->flush_work); 1022 regmap_write(rt1015->regmap, RT1015_RESET, 0); 1023 } 1024 1025 #define RT1015_STEREO_RATES SNDRV_PCM_RATE_8000_192000 1026 #define RT1015_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 1027 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) 1028 1029 static struct snd_soc_dai_ops rt1015_aif_dai_ops = { 1030 .hw_params = rt1015_hw_params, 1031 .set_fmt = rt1015_set_dai_fmt, 1032 .set_tdm_slot = rt1015_set_tdm_slot, 1033 }; 1034 1035 static struct snd_soc_dai_driver rt1015_dai[] = { 1036 { 1037 .name = "rt1015-aif", 1038 .id = 0, 1039 .playback = { 1040 .stream_name = "AIF Playback", 1041 .channels_min = 1, 1042 .channels_max = 4, 1043 .rates = RT1015_STEREO_RATES, 1044 .formats = RT1015_FORMATS, 1045 }, 1046 .ops = &rt1015_aif_dai_ops, 1047 } 1048 }; 1049 1050 #ifdef CONFIG_PM 1051 static int rt1015_suspend(struct snd_soc_component *component) 1052 { 1053 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 1054 1055 regcache_cache_only(rt1015->regmap, true); 1056 regcache_mark_dirty(rt1015->regmap); 1057 1058 return 0; 1059 } 1060 1061 static int rt1015_resume(struct snd_soc_component *component) 1062 { 1063 struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component); 1064 1065 regcache_cache_only(rt1015->regmap, false); 1066 regcache_sync(rt1015->regmap); 1067 1068 if (rt1015->cali_done) 1069 rt1015_calibrate(rt1015); 1070 1071 return 0; 1072 } 1073 #else 1074 #define rt1015_suspend NULL 1075 #define rt1015_resume NULL 1076 #endif 1077 1078 static const struct snd_soc_component_driver soc_component_dev_rt1015 = { 1079 .probe = rt1015_probe, 1080 .remove = rt1015_remove, 1081 .suspend = rt1015_suspend, 1082 .resume = rt1015_resume, 1083 .controls = rt1015_snd_controls, 1084 .num_controls = ARRAY_SIZE(rt1015_snd_controls), 1085 .dapm_widgets = rt1015_dapm_widgets, 1086 .num_dapm_widgets = ARRAY_SIZE(rt1015_dapm_widgets), 1087 .dapm_routes = rt1015_dapm_routes, 1088 .num_dapm_routes = ARRAY_SIZE(rt1015_dapm_routes), 1089 .set_sysclk = rt1015_set_component_sysclk, 1090 .set_pll = rt1015_set_component_pll, 1091 .use_pmdown_time = 1, 1092 .endianness = 1, 1093 .non_legacy_dai_naming = 1, 1094 }; 1095 1096 static const struct regmap_config rt1015_regmap = { 1097 .reg_bits = 16, 1098 .val_bits = 16, 1099 .max_register = RT1015_S_BST_TIMING_INTER36, 1100 .volatile_reg = rt1015_volatile_register, 1101 .readable_reg = rt1015_readable_register, 1102 .cache_type = REGCACHE_RBTREE, 1103 .reg_defaults = rt1015_reg, 1104 .num_reg_defaults = ARRAY_SIZE(rt1015_reg), 1105 }; 1106 1107 static const struct i2c_device_id rt1015_i2c_id[] = { 1108 { "rt1015", 0 }, 1109 { } 1110 }; 1111 MODULE_DEVICE_TABLE(i2c, rt1015_i2c_id); 1112 1113 #if defined(CONFIG_OF) 1114 static const struct of_device_id rt1015_of_match[] = { 1115 { .compatible = "realtek,rt1015", }, 1116 {}, 1117 }; 1118 MODULE_DEVICE_TABLE(of, rt1015_of_match); 1119 #endif 1120 1121 #ifdef CONFIG_ACPI 1122 static struct acpi_device_id rt1015_acpi_match[] = { 1123 {"10EC1015", 0,}, 1124 {}, 1125 }; 1126 MODULE_DEVICE_TABLE(acpi, rt1015_acpi_match); 1127 #endif 1128 1129 static void rt1015_parse_dt(struct rt1015_priv *rt1015, struct device *dev) 1130 { 1131 device_property_read_u32(dev, "realtek,power-up-delay-ms", 1132 &rt1015->pdata.power_up_delay_ms); 1133 } 1134 1135 static int rt1015_i2c_probe(struct i2c_client *i2c, 1136 const struct i2c_device_id *id) 1137 { 1138 struct rt1015_platform_data *pdata = dev_get_platdata(&i2c->dev); 1139 struct rt1015_priv *rt1015; 1140 int ret; 1141 unsigned int val; 1142 1143 rt1015 = devm_kzalloc(&i2c->dev, sizeof(*rt1015), GFP_KERNEL); 1144 if (!rt1015) 1145 return -ENOMEM; 1146 1147 i2c_set_clientdata(i2c, rt1015); 1148 1149 rt1015->pdata = i2s_default_platform_data; 1150 1151 if (pdata) 1152 rt1015->pdata = *pdata; 1153 else 1154 rt1015_parse_dt(rt1015, &i2c->dev); 1155 1156 rt1015->regmap = devm_regmap_init_i2c(i2c, &rt1015_regmap); 1157 if (IS_ERR(rt1015->regmap)) { 1158 ret = PTR_ERR(rt1015->regmap); 1159 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 1160 ret); 1161 return ret; 1162 } 1163 1164 rt1015->hw_config = (i2c->addr == 0x29) ? RT1015_HW_29 : RT1015_HW_28; 1165 1166 ret = regmap_read(rt1015->regmap, RT1015_DEVICE_ID, &val); 1167 if (ret) { 1168 dev_err(&i2c->dev, 1169 "Failed to read device register: %d\n", ret); 1170 return ret; 1171 } else if ((val != RT1015_DEVICE_ID_VAL) && 1172 (val != RT1015_DEVICE_ID_VAL2)) { 1173 dev_err(&i2c->dev, 1174 "Device with ID register %x is not rt1015\n", val); 1175 return -ENODEV; 1176 } 1177 1178 return devm_snd_soc_register_component(&i2c->dev, 1179 &soc_component_dev_rt1015, 1180 rt1015_dai, ARRAY_SIZE(rt1015_dai)); 1181 } 1182 1183 static void rt1015_i2c_shutdown(struct i2c_client *client) 1184 { 1185 struct rt1015_priv *rt1015 = i2c_get_clientdata(client); 1186 1187 regmap_write(rt1015->regmap, RT1015_RESET, 0); 1188 } 1189 1190 static struct i2c_driver rt1015_i2c_driver = { 1191 .driver = { 1192 .name = "rt1015", 1193 .of_match_table = of_match_ptr(rt1015_of_match), 1194 .acpi_match_table = ACPI_PTR(rt1015_acpi_match), 1195 }, 1196 .probe = rt1015_i2c_probe, 1197 .shutdown = rt1015_i2c_shutdown, 1198 .id_table = rt1015_i2c_id, 1199 }; 1200 module_i2c_driver(rt1015_i2c_driver); 1201 1202 MODULE_DESCRIPTION("ASoC RT1015 driver"); 1203 MODULE_AUTHOR("Jack Yu <jack.yu@realtek.com>"); 1204 MODULE_LICENSE("GPL v2"); 1205