1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // rt1308.c -- RT1308 ALSA SoC amplifier component driver 4 // 5 // Copyright 2019 Realtek Semiconductor Corp. 6 // Author: Derek Fang <derek.fang@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/i2c.h> 15 #include <linux/regmap.h> 16 #include <linux/acpi.h> 17 #include <linux/platform_device.h> 18 #include <linux/firmware.h> 19 #include <sound/core.h> 20 #include <sound/pcm.h> 21 #include <sound/pcm_params.h> 22 #include <sound/soc.h> 23 #include <sound/soc-dapm.h> 24 #include <sound/initval.h> 25 #include <sound/tlv.h> 26 27 #include "rl6231.h" 28 #include "rt1308.h" 29 30 static const struct reg_sequence init_list[] = { 31 32 { RT1308_I2C_I2S_SDW_SET, 0x01014005 }, 33 { RT1308_CLASS_D_SET_2, 0x227f5501 }, 34 { RT1308_PADS_1, 0x50150505 }, 35 { RT1308_VREF, 0x18100000 }, 36 { RT1308_IV_SENSE, 0x87010000 }, 37 { RT1308_DUMMY_REG, 0x00000200 }, 38 { RT1308_SIL_DET, 0xe1c30000 }, 39 { RT1308_DC_CAL_2, 0x00ffff00 }, 40 { RT1308_CLK_DET, 0x01000000 }, 41 { RT1308_POWER_STATUS, 0x08800000 }, 42 { RT1308_DAC_SET, 0xafaf0700 }, 43 44 }; 45 #define RT1308_INIT_REG_LEN ARRAY_SIZE(init_list) 46 47 struct rt1308_priv { 48 struct snd_soc_component *component; 49 struct regmap *regmap; 50 51 int sysclk; 52 int sysclk_src; 53 int lrck; 54 int bclk; 55 int master; 56 57 int pll_src; 58 int pll_in; 59 int pll_out; 60 }; 61 62 static const struct reg_default rt1308_reg[] = { 63 64 { 0x01, 0x1f3f5f00 }, 65 { 0x02, 0x07000000 }, 66 { 0x03, 0x80003e00 }, 67 { 0x04, 0x80800600 }, 68 { 0x05, 0x0aaa1a0a }, 69 { 0x06, 0x52000000 }, 70 { 0x07, 0x00000000 }, 71 { 0x08, 0x00600000 }, 72 { 0x09, 0xe1030000 }, 73 { 0x0a, 0x00000000 }, 74 { 0x0b, 0x30000000 }, 75 { 0x0c, 0x7fff7000 }, 76 { 0x10, 0xffff0700 }, 77 { 0x11, 0x0a000000 }, 78 { 0x12, 0x60040000 }, 79 { 0x13, 0x00000000 }, 80 { 0x14, 0x0f300000 }, 81 { 0x15, 0x00000022 }, 82 { 0x16, 0x02000000 }, 83 { 0x17, 0x01004045 }, 84 { 0x18, 0x00000000 }, 85 { 0x19, 0x00000000 }, 86 { 0x1a, 0x80000000 }, 87 { 0x1b, 0x10325476 }, 88 { 0x1c, 0x1d1d0000 }, 89 { 0x20, 0xd2101300 }, 90 { 0x21, 0xf3ffff00 }, 91 { 0x22, 0x00000000 }, 92 { 0x23, 0x00000000 }, 93 { 0x24, 0x00000000 }, 94 { 0x25, 0x00000000 }, 95 { 0x26, 0x00000000 }, 96 { 0x27, 0x00000000 }, 97 { 0x28, 0x00000000 }, 98 { 0x29, 0x00000000 }, 99 { 0x2a, 0x00000000 }, 100 { 0x2b, 0x00000000 }, 101 { 0x2c, 0x00000000 }, 102 { 0x2d, 0x00000000 }, 103 { 0x2e, 0x00000000 }, 104 { 0x2f, 0x00000000 }, 105 { 0x30, 0x01000000 }, 106 { 0x31, 0x20025501 }, 107 { 0x32, 0x00000000 }, 108 { 0x33, 0x105a0000 }, 109 { 0x34, 0x10100000 }, 110 { 0x35, 0x2aaa52aa }, 111 { 0x36, 0x00c00000 }, 112 { 0x37, 0x20046100 }, 113 { 0x50, 0x10022f00 }, 114 { 0x51, 0x003c0000 }, 115 { 0x54, 0x04000000 }, 116 { 0x55, 0x01000000 }, 117 { 0x56, 0x02000000 }, 118 { 0x57, 0x02000000 }, 119 { 0x58, 0x02000000 }, 120 { 0x59, 0x02000000 }, 121 { 0x5b, 0x02000000 }, 122 { 0x5c, 0x00000000 }, 123 { 0x5d, 0x00000000 }, 124 { 0x5e, 0x00000000 }, 125 { 0x5f, 0x00000000 }, 126 { 0x60, 0x02000000 }, 127 { 0x61, 0x00000000 }, 128 { 0x62, 0x00000000 }, 129 { 0x63, 0x00000000 }, 130 { 0x64, 0x00000000 }, 131 { 0x65, 0x02000000 }, 132 { 0x66, 0x00000000 }, 133 { 0x67, 0x00000000 }, 134 { 0x68, 0x00000000 }, 135 { 0x69, 0x00000000 }, 136 { 0x6a, 0x02000000 }, 137 { 0x6c, 0x00000000 }, 138 { 0x6d, 0x00000000 }, 139 { 0x6e, 0x00000000 }, 140 { 0x70, 0x10EC1308 }, 141 { 0x71, 0x00000000 }, 142 { 0x72, 0x00000000 }, 143 { 0x73, 0x00000000 }, 144 { 0x74, 0x00000000 }, 145 { 0x75, 0x00000000 }, 146 { 0x76, 0x00000000 }, 147 { 0x77, 0x00000000 }, 148 { 0x78, 0x00000000 }, 149 { 0x79, 0x00000000 }, 150 { 0x7a, 0x00000000 }, 151 { 0x7b, 0x00000000 }, 152 { 0x7c, 0x00000000 }, 153 { 0x7d, 0x00000000 }, 154 { 0x7e, 0x00000000 }, 155 { 0x7f, 0x00020f00 }, 156 { 0x80, 0x00000000 }, 157 { 0x81, 0x00000000 }, 158 { 0x82, 0x00000000 }, 159 { 0x83, 0x00000000 }, 160 { 0x84, 0x00000000 }, 161 { 0x85, 0x00000000 }, 162 { 0x86, 0x00000000 }, 163 { 0x87, 0x00000000 }, 164 { 0x88, 0x00000000 }, 165 { 0x89, 0x00000000 }, 166 { 0x8a, 0x00000000 }, 167 { 0x8b, 0x00000000 }, 168 { 0x8c, 0x00000000 }, 169 { 0x8d, 0x00000000 }, 170 { 0x8e, 0x00000000 }, 171 { 0x90, 0x50250905 }, 172 { 0x91, 0x15050000 }, 173 { 0xa0, 0x00000000 }, 174 { 0xa1, 0x00000000 }, 175 { 0xa2, 0x00000000 }, 176 { 0xa3, 0x00000000 }, 177 { 0xa4, 0x00000000 }, 178 { 0xb0, 0x00000000 }, 179 { 0xb1, 0x00000000 }, 180 { 0xb2, 0x00000000 }, 181 { 0xb3, 0x00000000 }, 182 { 0xb4, 0x00000000 }, 183 { 0xb5, 0x00000000 }, 184 { 0xb6, 0x00000000 }, 185 { 0xb7, 0x00000000 }, 186 { 0xb8, 0x00000000 }, 187 { 0xb9, 0x00000000 }, 188 { 0xba, 0x00000000 }, 189 { 0xbb, 0x00000000 }, 190 { 0xc0, 0x01000000 }, 191 { 0xc1, 0x00000000 }, 192 { 0xf0, 0x00000000 }, 193 }; 194 195 static int rt1308_reg_init(struct snd_soc_component *component) 196 { 197 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 198 199 return regmap_multi_reg_write(rt1308->regmap, init_list, 200 RT1308_INIT_REG_LEN); 201 } 202 203 static bool rt1308_volatile_register(struct device *dev, unsigned int reg) 204 { 205 switch (reg) { 206 case RT1308_RESET: 207 case RT1308_RESET_N: 208 case RT1308_CLK_2: 209 case RT1308_SIL_DET: 210 case RT1308_CLK_DET: 211 case RT1308_DC_DET: 212 case RT1308_DAC_SET: 213 case RT1308_DAC_BUF: 214 case RT1308_SDW_REG_RDATA: 215 case RT1308_DC_CAL_1: 216 case RT1308_PVDD_OFFSET_CTL: 217 case RT1308_CAL_OFFSET_DAC_PBTL: 218 case RT1308_CAL_OFFSET_DAC_L: 219 case RT1308_CAL_OFFSET_DAC_R: 220 case RT1308_CAL_OFFSET_PWM_L: 221 case RT1308_CAL_OFFSET_PWM_R: 222 case RT1308_CAL_PWM_VOS_ADC_L: 223 case RT1308_CAL_PWM_VOS_ADC_R: 224 case RT1308_MBIAS: 225 case RT1308_POWER_STATUS: 226 case RT1308_POWER_INT: 227 case RT1308_SINE_TONE_GEN_2: 228 case RT1308_BQ_SET: 229 case RT1308_BQ_PARA_UPDATE: 230 case RT1308_VEN_DEV_ID: 231 case RT1308_VERSION_ID: 232 case RT1308_EFUSE_1: 233 case RT1308_EFUSE_READ_PVDD_L: 234 case RT1308_EFUSE_READ_PVDD_R: 235 case RT1308_EFUSE_READ_PVDD_PTBL: 236 case RT1308_EFUSE_READ_DEV: 237 case RT1308_EFUSE_READ_R0: 238 case RT1308_EFUSE_READ_ADC_L: 239 case RT1308_EFUSE_READ_ADC_R: 240 case RT1308_EFUSE_READ_ADC_PBTL: 241 case RT1308_EFUSE_RESERVE: 242 case RT1308_EFUSE_DATA_0_MSB: 243 case RT1308_EFUSE_DATA_0_LSB: 244 case RT1308_EFUSE_DATA_1_MSB: 245 case RT1308_EFUSE_DATA_1_LSB: 246 case RT1308_EFUSE_DATA_2_MSB: 247 case RT1308_EFUSE_DATA_2_LSB: 248 case RT1308_EFUSE_DATA_3_MSB: 249 case RT1308_EFUSE_DATA_3_LSB: 250 case RT1308_EFUSE_STATUS_1: 251 case RT1308_EFUSE_STATUS_2: 252 case RT1308_DUMMY_REG: 253 return true; 254 default: 255 return false; 256 } 257 } 258 259 static bool rt1308_readable_register(struct device *dev, unsigned int reg) 260 { 261 switch (reg) { 262 case RT1308_RESET: 263 case RT1308_RESET_N: 264 case RT1308_CLK_GATING ... RT1308_DC_DET_THRES: 265 case RT1308_DAC_SET ... RT1308_AD_FILTER_SET: 266 case RT1308_DC_CAL_1 ... RT1308_POWER_INT: 267 case RT1308_SINE_TONE_GEN_1: 268 case RT1308_SINE_TONE_GEN_2: 269 case RT1308_BQ_SET: 270 case RT1308_BQ_PARA_UPDATE: 271 case RT1308_BQ_PRE_VOL_L ... RT1308_BQ_POST_VOL_R: 272 case RT1308_BQ1_L_H0 ... RT1308_BQ2_R_A2: 273 case RT1308_VEN_DEV_ID: 274 case RT1308_VERSION_ID: 275 case RT1308_SPK_BOUND: 276 case RT1308_BQ1_EQ_L_1 ... RT1308_BQ2_EQ_R_3: 277 case RT1308_EFUSE_1 ... RT1308_EFUSE_RESERVE: 278 case RT1308_PADS_1: 279 case RT1308_PADS_2: 280 case RT1308_TEST_MODE: 281 case RT1308_TEST_1: 282 case RT1308_TEST_2: 283 case RT1308_TEST_3: 284 case RT1308_TEST_4: 285 case RT1308_EFUSE_DATA_0_MSB ... RT1308_EFUSE_STATUS_2: 286 case RT1308_TCON_1: 287 case RT1308_TCON_2: 288 case RT1308_DUMMY_REG: 289 case RT1308_MAX_REG: 290 return true; 291 default: 292 return false; 293 } 294 } 295 296 static int rt1308_classd_event(struct snd_soc_dapm_widget *w, 297 struct snd_kcontrol *kcontrol, int event) 298 { 299 struct snd_soc_component *component = 300 snd_soc_dapm_to_component(w->dapm); 301 302 switch (event) { 303 case SND_SOC_DAPM_POST_PMU: 304 msleep(30); 305 snd_soc_component_update_bits(component, RT1308_POWER_STATUS, 306 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 307 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT); 308 msleep(40); 309 break; 310 case SND_SOC_DAPM_PRE_PMD: 311 snd_soc_component_update_bits(component, RT1308_POWER_STATUS, 312 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 0); 313 usleep_range(150000, 200000); 314 break; 315 316 default: 317 break; 318 } 319 320 return 0; 321 } 322 323 static const char * const rt1308_rx_data_ch_select[] = { 324 "LR", 325 "LL", 326 "RL", 327 "RR", 328 }; 329 330 static SOC_ENUM_SINGLE_DECL(rt1308_rx_data_ch_enum, RT1308_DATA_PATH, 24, 331 rt1308_rx_data_ch_select); 332 333 static const struct snd_kcontrol_new rt1308_snd_controls[] = { 334 335 /* I2S Data Channel Selection */ 336 SOC_ENUM("RX Channel Select", rt1308_rx_data_ch_enum), 337 }; 338 339 static const struct snd_kcontrol_new rt1308_sto_dac_l = 340 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, 341 RT1308_DVOL_MUTE_L_EN_SFT, 1, 1); 342 343 static const struct snd_kcontrol_new rt1308_sto_dac_r = 344 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, 345 RT1308_DVOL_MUTE_R_EN_SFT, 1, 1); 346 347 static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = { 348 /* Audio Interface */ 349 SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), 350 351 /* Supply Widgets */ 352 SND_SOC_DAPM_SUPPLY("MBIAS20U", RT1308_POWER, 353 RT1308_POW_MBIAS20U_BIT, 0, NULL, 0), 354 SND_SOC_DAPM_SUPPLY("ALDO", RT1308_POWER, 355 RT1308_POW_ALDO_BIT, 0, NULL, 0), 356 SND_SOC_DAPM_SUPPLY("DBG", RT1308_POWER, 357 RT1308_POW_DBG_BIT, 0, NULL, 0), 358 SND_SOC_DAPM_SUPPLY("DACL", RT1308_POWER, 359 RT1308_POW_DACL_BIT, 0, NULL, 0), 360 SND_SOC_DAPM_SUPPLY("CLK25M", RT1308_POWER, 361 RT1308_POW_CLK25M_BIT, 0, NULL, 0), 362 SND_SOC_DAPM_SUPPLY("ADC_R", RT1308_POWER, 363 RT1308_POW_ADC_R_BIT, 0, NULL, 0), 364 SND_SOC_DAPM_SUPPLY("ADC_L", RT1308_POWER, 365 RT1308_POW_ADC_L_BIT, 0, NULL, 0), 366 SND_SOC_DAPM_SUPPLY("DLDO", RT1308_POWER, 367 RT1308_POW_DLDO_BIT, 0, NULL, 0), 368 SND_SOC_DAPM_SUPPLY("VREF", RT1308_POWER, 369 RT1308_POW_VREF_BIT, 0, NULL, 0), 370 SND_SOC_DAPM_SUPPLY("MIXER_R", RT1308_POWER, 371 RT1308_POW_MIXER_R_BIT, 0, NULL, 0), 372 SND_SOC_DAPM_SUPPLY("MIXER_L", RT1308_POWER, 373 RT1308_POW_MIXER_L_BIT, 0, NULL, 0), 374 SND_SOC_DAPM_SUPPLY("MBIAS4U", RT1308_POWER, 375 RT1308_POW_MBIAS4U_BIT, 0, NULL, 0), 376 SND_SOC_DAPM_SUPPLY("PLL2_LDO", RT1308_POWER, 377 RT1308_POW_PLL2_LDO_EN_BIT, 0, NULL, 0), 378 SND_SOC_DAPM_SUPPLY("PLL2B", RT1308_POWER, 379 RT1308_POW_PLL2B_EN_BIT, 0, NULL, 0), 380 SND_SOC_DAPM_SUPPLY("PLL2F", RT1308_POWER, 381 RT1308_POW_PLL2F_EN_BIT, 0, NULL, 0), 382 SND_SOC_DAPM_SUPPLY("PLL2F2", RT1308_POWER, 383 RT1308_POW_PLL2F2_EN_BIT, 0, NULL, 0), 384 SND_SOC_DAPM_SUPPLY("PLL2B2", RT1308_POWER, 385 RT1308_POW_PLL2B2_EN_BIT, 0, NULL, 0), 386 387 /* Digital Interface */ 388 SND_SOC_DAPM_SUPPLY("DAC Power", RT1308_POWER, 389 RT1308_POW_DAC1_BIT, 0, NULL, 0), 390 SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), 391 SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_l), 392 SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_r), 393 394 /* Output Lines */ 395 SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, 396 rt1308_classd_event, 397 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 398 SND_SOC_DAPM_OUTPUT("SPOL"), 399 SND_SOC_DAPM_OUTPUT("SPOR"), 400 }; 401 402 static const struct snd_soc_dapm_route rt1308_dapm_routes[] = { 403 404 { "DAC", NULL, "AIF1RX" }, 405 406 { "DAC", NULL, "MBIAS20U" }, 407 { "DAC", NULL, "ALDO" }, 408 { "DAC", NULL, "DBG" }, 409 { "DAC", NULL, "DACL" }, 410 { "DAC", NULL, "CLK25M" }, 411 { "DAC", NULL, "ADC_R" }, 412 { "DAC", NULL, "ADC_L" }, 413 { "DAC", NULL, "DLDO" }, 414 { "DAC", NULL, "VREF" }, 415 { "DAC", NULL, "MIXER_R" }, 416 { "DAC", NULL, "MIXER_L" }, 417 { "DAC", NULL, "MBIAS4U" }, 418 { "DAC", NULL, "PLL2_LDO" }, 419 { "DAC", NULL, "PLL2B" }, 420 { "DAC", NULL, "PLL2F" }, 421 { "DAC", NULL, "PLL2F2" }, 422 { "DAC", NULL, "PLL2B2" }, 423 424 { "DAC L", "Switch", "DAC" }, 425 { "DAC R", "Switch", "DAC" }, 426 { "DAC L", NULL, "DAC Power" }, 427 { "DAC R", NULL, "DAC Power" }, 428 429 { "CLASS D", NULL, "DAC L" }, 430 { "CLASS D", NULL, "DAC R" }, 431 { "SPOL", NULL, "CLASS D" }, 432 { "SPOR", NULL, "CLASS D" }, 433 }; 434 435 static int rt1308_get_clk_info(int sclk, int rate) 436 { 437 int i; 438 static const int pd[] = {1, 2, 3, 4, 6, 8, 12, 16}; 439 440 if (sclk <= 0 || rate <= 0) 441 return -EINVAL; 442 443 rate = rate << 8; 444 for (i = 0; i < ARRAY_SIZE(pd); i++) 445 if (sclk == rate * pd[i]) 446 return i; 447 448 return -EINVAL; 449 } 450 451 static int rt1308_hw_params(struct snd_pcm_substream *substream, 452 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 453 { 454 struct snd_soc_component *component = dai->component; 455 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 456 unsigned int val_len = 0, val_clk, mask_clk; 457 int pre_div, bclk_ms, frame_size; 458 459 rt1308->lrck = params_rate(params); 460 pre_div = rt1308_get_clk_info(rt1308->sysclk, rt1308->lrck); 461 if (pre_div < 0) { 462 dev_err(component->dev, 463 "Unsupported clock setting %d\n", rt1308->lrck); 464 return -EINVAL; 465 } 466 467 frame_size = snd_soc_params_to_frame_size(params); 468 if (frame_size < 0) { 469 dev_err(component->dev, "Unsupported frame size: %d\n", 470 frame_size); 471 return -EINVAL; 472 } 473 474 bclk_ms = frame_size > 32; 475 rt1308->bclk = rt1308->lrck * (32 << bclk_ms); 476 477 dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", 478 bclk_ms, pre_div, dai->id); 479 480 dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n", 481 rt1308->lrck, pre_div, dai->id); 482 483 switch (params_width(params)) { 484 case 16: 485 val_len |= RT1308_I2S_DL_SEL_16B; 486 break; 487 case 20: 488 val_len |= RT1308_I2S_DL_SEL_20B; 489 break; 490 case 24: 491 val_len |= RT1308_I2S_DL_SEL_24B; 492 break; 493 case 8: 494 val_len |= RT1308_I2S_DL_SEL_8B; 495 break; 496 default: 497 return -EINVAL; 498 } 499 500 switch (dai->id) { 501 case RT1308_AIF1: 502 mask_clk = RT1308_DIV_FS_SYS_MASK; 503 val_clk = pre_div << RT1308_DIV_FS_SYS_SFT; 504 snd_soc_component_update_bits(component, 505 RT1308_I2S_SET_2, RT1308_I2S_DL_SEL_MASK, 506 val_len); 507 break; 508 default: 509 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); 510 return -EINVAL; 511 } 512 513 snd_soc_component_update_bits(component, RT1308_CLK_1, 514 mask_clk, val_clk); 515 516 return 0; 517 } 518 519 static int rt1308_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 520 { 521 struct snd_soc_component *component = dai->component; 522 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 523 unsigned int reg_val = 0, reg1_val = 0; 524 525 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 526 case SND_SOC_DAIFMT_CBS_CFS: 527 rt1308->master = 0; 528 break; 529 default: 530 return -EINVAL; 531 } 532 533 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 534 case SND_SOC_DAIFMT_I2S: 535 break; 536 case SND_SOC_DAIFMT_LEFT_J: 537 reg_val |= RT1308_I2S_DF_SEL_LEFT; 538 break; 539 case SND_SOC_DAIFMT_DSP_A: 540 reg_val |= RT1308_I2S_DF_SEL_PCM_A; 541 break; 542 case SND_SOC_DAIFMT_DSP_B: 543 reg_val |= RT1308_I2S_DF_SEL_PCM_B; 544 break; 545 default: 546 return -EINVAL; 547 } 548 549 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 550 case SND_SOC_DAIFMT_NB_NF: 551 break; 552 case SND_SOC_DAIFMT_IB_NF: 553 reg1_val |= RT1308_I2S_BCLK_INV; 554 break; 555 default: 556 return -EINVAL; 557 } 558 559 switch (dai->id) { 560 case RT1308_AIF1: 561 snd_soc_component_update_bits(component, 562 RT1308_I2S_SET_1, RT1308_I2S_DF_SEL_MASK, 563 reg_val); 564 snd_soc_component_update_bits(component, 565 RT1308_I2S_SET_2, RT1308_I2S_BCLK_MASK, 566 reg1_val); 567 break; 568 default: 569 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); 570 return -EINVAL; 571 } 572 return 0; 573 } 574 575 static int rt1308_set_component_sysclk(struct snd_soc_component *component, 576 int clk_id, int source, unsigned int freq, int dir) 577 { 578 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 579 unsigned int reg_val = 0; 580 581 if (freq == rt1308->sysclk && clk_id == rt1308->sysclk_src) 582 return 0; 583 584 switch (clk_id) { 585 case RT1308_FS_SYS_S_MCLK: 586 reg_val |= RT1308_SEL_FS_SYS_SRC_MCLK; 587 snd_soc_component_update_bits(component, 588 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, 589 RT1308_MCLK_DET_EN); 590 break; 591 case RT1308_FS_SYS_S_BCLK: 592 reg_val |= RT1308_SEL_FS_SYS_SRC_BCLK; 593 break; 594 case RT1308_FS_SYS_S_PLL: 595 reg_val |= RT1308_SEL_FS_SYS_SRC_PLL; 596 break; 597 case RT1308_FS_SYS_S_RCCLK: 598 reg_val |= RT1308_SEL_FS_SYS_SRC_RCCLK; 599 break; 600 default: 601 dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); 602 return -EINVAL; 603 } 604 snd_soc_component_update_bits(component, RT1308_CLK_1, 605 RT1308_SEL_FS_SYS_MASK, reg_val); 606 rt1308->sysclk = freq; 607 rt1308->sysclk_src = clk_id; 608 609 dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n", 610 freq, clk_id); 611 612 return 0; 613 } 614 615 static int rt1308_set_component_pll(struct snd_soc_component *component, 616 int pll_id, int source, unsigned int freq_in, 617 unsigned int freq_out) 618 { 619 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 620 struct rl6231_pll_code pll_code; 621 int ret; 622 623 if (source == rt1308->pll_src && freq_in == rt1308->pll_in && 624 freq_out == rt1308->pll_out) 625 return 0; 626 627 if (!freq_in || !freq_out) { 628 dev_dbg(component->dev, "PLL disabled\n"); 629 630 rt1308->pll_in = 0; 631 rt1308->pll_out = 0; 632 snd_soc_component_update_bits(component, 633 RT1308_CLK_1, RT1308_SEL_FS_SYS_MASK, 634 RT1308_SEL_FS_SYS_SRC_MCLK); 635 return 0; 636 } 637 638 switch (source) { 639 case RT1308_PLL_S_MCLK: 640 snd_soc_component_update_bits(component, 641 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 642 RT1308_SEL_PLL_SRC_MCLK); 643 snd_soc_component_update_bits(component, 644 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, 645 RT1308_MCLK_DET_EN); 646 break; 647 case RT1308_PLL_S_BCLK: 648 snd_soc_component_update_bits(component, 649 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 650 RT1308_SEL_PLL_SRC_BCLK); 651 break; 652 case RT1308_PLL_S_RCCLK: 653 snd_soc_component_update_bits(component, 654 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 655 RT1308_SEL_PLL_SRC_RCCLK); 656 freq_in = 25000000; 657 break; 658 default: 659 dev_err(component->dev, "Unknown PLL Source %d\n", source); 660 return -EINVAL; 661 } 662 663 ret = rl6231_pll_calc(freq_in, freq_out, &pll_code); 664 if (ret < 0) { 665 dev_err(component->dev, "Unsupported input clock %d\n", freq_in); 666 return ret; 667 } 668 669 dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n", 670 pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), 671 pll_code.n_code, pll_code.k_code); 672 673 snd_soc_component_write(component, RT1308_PLL_1, 674 (pll_code.k_code << RT1308_PLL1_K_SFT) | 675 (pll_code.m_bp << RT1308_PLL1_M_BYPASS_SFT) | 676 ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1308_PLL1_M_SFT) | 677 (pll_code.n_code << RT1308_PLL1_N_SFT)); 678 679 rt1308->pll_in = freq_in; 680 rt1308->pll_out = freq_out; 681 rt1308->pll_src = source; 682 683 return 0; 684 } 685 686 static int rt1308_probe(struct snd_soc_component *component) 687 { 688 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 689 690 rt1308->component = component; 691 692 return rt1308_reg_init(component); 693 } 694 695 static void rt1308_remove(struct snd_soc_component *component) 696 { 697 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 698 699 regmap_write(rt1308->regmap, RT1308_RESET, 0); 700 } 701 702 #ifdef CONFIG_PM 703 static int rt1308_suspend(struct snd_soc_component *component) 704 { 705 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 706 707 regcache_cache_only(rt1308->regmap, true); 708 regcache_mark_dirty(rt1308->regmap); 709 710 return 0; 711 } 712 713 static int rt1308_resume(struct snd_soc_component *component) 714 { 715 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 716 717 regcache_cache_only(rt1308->regmap, false); 718 regcache_sync(rt1308->regmap); 719 720 return 0; 721 } 722 #else 723 #define rt1308_suspend NULL 724 #define rt1308_resume NULL 725 #endif 726 727 #define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 728 #define RT1308_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ 729 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ 730 SNDRV_PCM_FMTBIT_S24_LE) 731 732 static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { 733 .hw_params = rt1308_hw_params, 734 .set_fmt = rt1308_set_dai_fmt, 735 }; 736 737 static struct snd_soc_dai_driver rt1308_dai[] = { 738 { 739 .name = "rt1308-aif", 740 .playback = { 741 .stream_name = "AIF1 Playback", 742 .channels_min = 1, 743 .channels_max = 2, 744 .rates = RT1308_STEREO_RATES, 745 .formats = RT1308_FORMATS, 746 }, 747 .ops = &rt1308_aif_dai_ops, 748 }, 749 }; 750 751 static const struct snd_soc_component_driver soc_component_dev_rt1308 = { 752 .probe = rt1308_probe, 753 .remove = rt1308_remove, 754 .suspend = rt1308_suspend, 755 .resume = rt1308_resume, 756 .controls = rt1308_snd_controls, 757 .num_controls = ARRAY_SIZE(rt1308_snd_controls), 758 .dapm_widgets = rt1308_dapm_widgets, 759 .num_dapm_widgets = ARRAY_SIZE(rt1308_dapm_widgets), 760 .dapm_routes = rt1308_dapm_routes, 761 .num_dapm_routes = ARRAY_SIZE(rt1308_dapm_routes), 762 .set_sysclk = rt1308_set_component_sysclk, 763 .set_pll = rt1308_set_component_pll, 764 .use_pmdown_time = 1, 765 .endianness = 1, 766 }; 767 768 static const struct regmap_config rt1308_regmap = { 769 .reg_bits = 8, 770 .val_bits = 32, 771 .max_register = RT1308_MAX_REG, 772 .volatile_reg = rt1308_volatile_register, 773 .readable_reg = rt1308_readable_register, 774 .cache_type = REGCACHE_MAPLE, 775 .reg_defaults = rt1308_reg, 776 .num_reg_defaults = ARRAY_SIZE(rt1308_reg), 777 .use_single_read = true, 778 .use_single_write = true, 779 }; 780 781 #ifdef CONFIG_OF 782 static const struct of_device_id rt1308_of_match[] = { 783 { .compatible = "realtek,rt1308", }, 784 { }, 785 }; 786 MODULE_DEVICE_TABLE(of, rt1308_of_match); 787 #endif 788 789 #ifdef CONFIG_ACPI 790 static const struct acpi_device_id rt1308_acpi_match[] = { 791 { "10EC1308", 0, }, 792 { }, 793 }; 794 MODULE_DEVICE_TABLE(acpi, rt1308_acpi_match); 795 #endif 796 797 static const struct i2c_device_id rt1308_i2c_id[] = { 798 { "rt1308" }, 799 { } 800 }; 801 MODULE_DEVICE_TABLE(i2c, rt1308_i2c_id); 802 803 static void rt1308_efuse(struct rt1308_priv *rt1308) 804 { 805 regmap_write(rt1308->regmap, RT1308_RESET, 0); 806 807 regmap_write(rt1308->regmap, RT1308_POWER_STATUS, 0x01800000); 808 msleep(100); 809 regmap_write(rt1308->regmap, RT1308_EFUSE_1, 0x44fe0f00); 810 msleep(20); 811 regmap_write(rt1308->regmap, RT1308_PVDD_OFFSET_CTL, 0x10000000); 812 } 813 814 static int rt1308_i2c_probe(struct i2c_client *i2c) 815 { 816 struct rt1308_priv *rt1308; 817 int ret; 818 unsigned int val; 819 820 rt1308 = devm_kzalloc(&i2c->dev, sizeof(struct rt1308_priv), 821 GFP_KERNEL); 822 if (rt1308 == NULL) 823 return -ENOMEM; 824 825 i2c_set_clientdata(i2c, rt1308); 826 827 rt1308->regmap = devm_regmap_init_i2c(i2c, &rt1308_regmap); 828 if (IS_ERR(rt1308->regmap)) { 829 ret = PTR_ERR(rt1308->regmap); 830 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 831 ret); 832 return ret; 833 } 834 835 regmap_read(rt1308->regmap, RT1308_VEN_DEV_ID, &val); 836 /* ignore last byte difference */ 837 if ((val & 0xFFFFFF00) != RT1308_DEVICE_ID_NUM) { 838 dev_err(&i2c->dev, 839 "Device with ID register %x is not rt1308\n", val); 840 return -ENODEV; 841 } 842 843 rt1308_efuse(rt1308); 844 845 return devm_snd_soc_register_component(&i2c->dev, 846 &soc_component_dev_rt1308, 847 rt1308_dai, ARRAY_SIZE(rt1308_dai)); 848 } 849 850 static void rt1308_i2c_shutdown(struct i2c_client *client) 851 { 852 struct rt1308_priv *rt1308 = i2c_get_clientdata(client); 853 854 regmap_write(rt1308->regmap, RT1308_RESET, 0); 855 } 856 857 static struct i2c_driver rt1308_i2c_driver = { 858 .driver = { 859 .name = "rt1308", 860 .of_match_table = of_match_ptr(rt1308_of_match), 861 .acpi_match_table = ACPI_PTR(rt1308_acpi_match), 862 }, 863 .probe = rt1308_i2c_probe, 864 .shutdown = rt1308_i2c_shutdown, 865 .id_table = rt1308_i2c_id, 866 }; 867 module_i2c_driver(rt1308_i2c_driver); 868 869 MODULE_DESCRIPTION("ASoC RT1308 amplifier driver"); 870 MODULE_AUTHOR("Derek Fang <derek.fang@realtek.com>"); 871 MODULE_LICENSE("GPL v2"); 872