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/gpio.h> 15 #include <linux/i2c.h> 16 #include <linux/regmap.h> 17 #include <linux/of_gpio.h> 18 #include <linux/acpi.h> 19 #include <linux/platform_device.h> 20 #include <linux/firmware.h> 21 #include <sound/core.h> 22 #include <sound/pcm.h> 23 #include <sound/pcm_params.h> 24 #include <sound/soc.h> 25 #include <sound/soc-dapm.h> 26 #include <sound/initval.h> 27 #include <sound/tlv.h> 28 29 #include "rl6231.h" 30 #include "rt1308.h" 31 32 static const struct reg_sequence init_list[] = { 33 34 { RT1308_I2C_I2S_SDW_SET, 0x01014005 }, 35 { RT1308_CLASS_D_SET_2, 0x227f5501 }, 36 { RT1308_PADS_1, 0x50150505 }, 37 { RT1308_VREF, 0x18100000 }, 38 { RT1308_IV_SENSE, 0x87010000 }, 39 { RT1308_DUMMY_REG, 0x00000200 }, 40 { RT1308_SIL_DET, 0xe1c30000 }, 41 { RT1308_DC_CAL_2, 0x00ffff00 }, 42 { RT1308_CLK_DET, 0x01000000 }, 43 { RT1308_POWER_STATUS, 0x08800000 }, 44 { RT1308_DAC_SET, 0xafaf0700 }, 45 46 }; 47 #define RT1308_INIT_REG_LEN ARRAY_SIZE(init_list) 48 49 struct rt1308_priv { 50 struct snd_soc_component *component; 51 struct regmap *regmap; 52 53 int sysclk; 54 int sysclk_src; 55 int lrck; 56 int bclk; 57 int master; 58 59 int pll_src; 60 int pll_in; 61 int pll_out; 62 }; 63 64 static const struct reg_default rt1308_reg[] = { 65 66 { 0x01, 0x1f3f5f00 }, 67 { 0x02, 0x07000000 }, 68 { 0x03, 0x80003e00 }, 69 { 0x04, 0x80800600 }, 70 { 0x05, 0x0aaa1a0a }, 71 { 0x06, 0x52000000 }, 72 { 0x07, 0x00000000 }, 73 { 0x08, 0x00600000 }, 74 { 0x09, 0xe1030000 }, 75 { 0x0a, 0x00000000 }, 76 { 0x0b, 0x30000000 }, 77 { 0x0c, 0x7fff7000 }, 78 { 0x10, 0xffff0700 }, 79 { 0x11, 0x0a000000 }, 80 { 0x12, 0x60040000 }, 81 { 0x13, 0x00000000 }, 82 { 0x14, 0x0f300000 }, 83 { 0x15, 0x00000022 }, 84 { 0x16, 0x02000000 }, 85 { 0x17, 0x01004045 }, 86 { 0x18, 0x00000000 }, 87 { 0x19, 0x00000000 }, 88 { 0x1a, 0x80000000 }, 89 { 0x1b, 0x10325476 }, 90 { 0x1c, 0x1d1d0000 }, 91 { 0x20, 0xd2101300 }, 92 { 0x21, 0xf3ffff00 }, 93 { 0x22, 0x00000000 }, 94 { 0x23, 0x00000000 }, 95 { 0x24, 0x00000000 }, 96 { 0x25, 0x00000000 }, 97 { 0x26, 0x00000000 }, 98 { 0x27, 0x00000000 }, 99 { 0x28, 0x00000000 }, 100 { 0x29, 0x00000000 }, 101 { 0x2a, 0x00000000 }, 102 { 0x2b, 0x00000000 }, 103 { 0x2c, 0x00000000 }, 104 { 0x2d, 0x00000000 }, 105 { 0x2e, 0x00000000 }, 106 { 0x2f, 0x00000000 }, 107 { 0x30, 0x01000000 }, 108 { 0x31, 0x20025501 }, 109 { 0x32, 0x00000000 }, 110 { 0x33, 0x105a0000 }, 111 { 0x34, 0x10100000 }, 112 { 0x35, 0x2aaa52aa }, 113 { 0x36, 0x00c00000 }, 114 { 0x37, 0x20046100 }, 115 { 0x50, 0x10022f00 }, 116 { 0x51, 0x003c0000 }, 117 { 0x54, 0x04000000 }, 118 { 0x55, 0x01000000 }, 119 { 0x56, 0x02000000 }, 120 { 0x57, 0x02000000 }, 121 { 0x58, 0x02000000 }, 122 { 0x59, 0x02000000 }, 123 { 0x5b, 0x02000000 }, 124 { 0x5c, 0x00000000 }, 125 { 0x5d, 0x00000000 }, 126 { 0x5e, 0x00000000 }, 127 { 0x5f, 0x00000000 }, 128 { 0x60, 0x02000000 }, 129 { 0x61, 0x00000000 }, 130 { 0x62, 0x00000000 }, 131 { 0x63, 0x00000000 }, 132 { 0x64, 0x00000000 }, 133 { 0x65, 0x02000000 }, 134 { 0x66, 0x00000000 }, 135 { 0x67, 0x00000000 }, 136 { 0x68, 0x00000000 }, 137 { 0x69, 0x00000000 }, 138 { 0x6a, 0x02000000 }, 139 { 0x6c, 0x00000000 }, 140 { 0x6d, 0x00000000 }, 141 { 0x6e, 0x00000000 }, 142 { 0x70, 0x10EC1308 }, 143 { 0x71, 0x00000000 }, 144 { 0x72, 0x00000000 }, 145 { 0x73, 0x00000000 }, 146 { 0x74, 0x00000000 }, 147 { 0x75, 0x00000000 }, 148 { 0x76, 0x00000000 }, 149 { 0x77, 0x00000000 }, 150 { 0x78, 0x00000000 }, 151 { 0x79, 0x00000000 }, 152 { 0x7a, 0x00000000 }, 153 { 0x7b, 0x00000000 }, 154 { 0x7c, 0x00000000 }, 155 { 0x7d, 0x00000000 }, 156 { 0x7e, 0x00000000 }, 157 { 0x7f, 0x00020f00 }, 158 { 0x80, 0x00000000 }, 159 { 0x81, 0x00000000 }, 160 { 0x82, 0x00000000 }, 161 { 0x83, 0x00000000 }, 162 { 0x84, 0x00000000 }, 163 { 0x85, 0x00000000 }, 164 { 0x86, 0x00000000 }, 165 { 0x87, 0x00000000 }, 166 { 0x88, 0x00000000 }, 167 { 0x89, 0x00000000 }, 168 { 0x8a, 0x00000000 }, 169 { 0x8b, 0x00000000 }, 170 { 0x8c, 0x00000000 }, 171 { 0x8d, 0x00000000 }, 172 { 0x8e, 0x00000000 }, 173 { 0x90, 0x50250905 }, 174 { 0x91, 0x15050000 }, 175 { 0xa0, 0x00000000 }, 176 { 0xa1, 0x00000000 }, 177 { 0xa2, 0x00000000 }, 178 { 0xa3, 0x00000000 }, 179 { 0xa4, 0x00000000 }, 180 { 0xb0, 0x00000000 }, 181 { 0xb1, 0x00000000 }, 182 { 0xb2, 0x00000000 }, 183 { 0xb3, 0x00000000 }, 184 { 0xb4, 0x00000000 }, 185 { 0xb5, 0x00000000 }, 186 { 0xb6, 0x00000000 }, 187 { 0xb7, 0x00000000 }, 188 { 0xb8, 0x00000000 }, 189 { 0xb9, 0x00000000 }, 190 { 0xba, 0x00000000 }, 191 { 0xbb, 0x00000000 }, 192 { 0xc0, 0x01000000 }, 193 { 0xc1, 0x00000000 }, 194 { 0xf0, 0x00000000 }, 195 }; 196 197 static int rt1308_reg_init(struct snd_soc_component *component) 198 { 199 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 200 201 return regmap_multi_reg_write(rt1308->regmap, init_list, 202 RT1308_INIT_REG_LEN); 203 } 204 205 static bool rt1308_volatile_register(struct device *dev, unsigned int reg) 206 { 207 switch (reg) { 208 case RT1308_RESET: 209 case RT1308_RESET_N: 210 case RT1308_CLK_2: 211 case RT1308_SIL_DET: 212 case RT1308_CLK_DET: 213 case RT1308_DC_DET: 214 case RT1308_DAC_SET: 215 case RT1308_DAC_BUF: 216 case RT1308_SDW_REG_RDATA: 217 case RT1308_DC_CAL_1: 218 case RT1308_PVDD_OFFSET_CTL: 219 case RT1308_CAL_OFFSET_DAC_PBTL: 220 case RT1308_CAL_OFFSET_DAC_L: 221 case RT1308_CAL_OFFSET_DAC_R: 222 case RT1308_CAL_OFFSET_PWM_L: 223 case RT1308_CAL_OFFSET_PWM_R: 224 case RT1308_CAL_PWM_VOS_ADC_L: 225 case RT1308_CAL_PWM_VOS_ADC_R: 226 case RT1308_MBIAS: 227 case RT1308_POWER_STATUS: 228 case RT1308_POWER_INT: 229 case RT1308_SINE_TONE_GEN_2: 230 case RT1308_BQ_SET: 231 case RT1308_BQ_PARA_UPDATE: 232 case RT1308_VEN_DEV_ID: 233 case RT1308_VERSION_ID: 234 case RT1308_EFUSE_1: 235 case RT1308_EFUSE_READ_PVDD_L: 236 case RT1308_EFUSE_READ_PVDD_R: 237 case RT1308_EFUSE_READ_PVDD_PTBL: 238 case RT1308_EFUSE_READ_DEV: 239 case RT1308_EFUSE_READ_R0: 240 case RT1308_EFUSE_READ_ADC_L: 241 case RT1308_EFUSE_READ_ADC_R: 242 case RT1308_EFUSE_READ_ADC_PBTL: 243 case RT1308_EFUSE_RESERVE: 244 case RT1308_EFUSE_DATA_0_MSB: 245 case RT1308_EFUSE_DATA_0_LSB: 246 case RT1308_EFUSE_DATA_1_MSB: 247 case RT1308_EFUSE_DATA_1_LSB: 248 case RT1308_EFUSE_DATA_2_MSB: 249 case RT1308_EFUSE_DATA_2_LSB: 250 case RT1308_EFUSE_DATA_3_MSB: 251 case RT1308_EFUSE_DATA_3_LSB: 252 case RT1308_EFUSE_STATUS_1: 253 case RT1308_EFUSE_STATUS_2: 254 case RT1308_DUMMY_REG: 255 return true; 256 default: 257 return false; 258 } 259 } 260 261 static bool rt1308_readable_register(struct device *dev, unsigned int reg) 262 { 263 switch (reg) { 264 case RT1308_RESET: 265 case RT1308_RESET_N: 266 case RT1308_CLK_GATING ... RT1308_DC_DET_THRES: 267 case RT1308_DAC_SET ... RT1308_AD_FILTER_SET: 268 case RT1308_DC_CAL_1 ... RT1308_POWER_INT: 269 case RT1308_SINE_TONE_GEN_1: 270 case RT1308_SINE_TONE_GEN_2: 271 case RT1308_BQ_SET: 272 case RT1308_BQ_PARA_UPDATE: 273 case RT1308_BQ_PRE_VOL_L ... RT1308_BQ_POST_VOL_R: 274 case RT1308_BQ1_L_H0 ... RT1308_BQ2_R_A2: 275 case RT1308_VEN_DEV_ID: 276 case RT1308_VERSION_ID: 277 case RT1308_SPK_BOUND: 278 case RT1308_BQ1_EQ_L_1 ... RT1308_BQ2_EQ_R_3: 279 case RT1308_EFUSE_1 ... RT1308_EFUSE_RESERVE: 280 case RT1308_PADS_1: 281 case RT1308_PADS_2: 282 case RT1308_TEST_MODE: 283 case RT1308_TEST_1: 284 case RT1308_TEST_2: 285 case RT1308_TEST_3: 286 case RT1308_TEST_4: 287 case RT1308_EFUSE_DATA_0_MSB ... RT1308_EFUSE_STATUS_2: 288 case RT1308_TCON_1: 289 case RT1308_TCON_2: 290 case RT1308_DUMMY_REG: 291 case RT1308_MAX_REG: 292 return true; 293 default: 294 return false; 295 } 296 } 297 298 static int rt1308_classd_event(struct snd_soc_dapm_widget *w, 299 struct snd_kcontrol *kcontrol, int event) 300 { 301 struct snd_soc_component *component = 302 snd_soc_dapm_to_component(w->dapm); 303 304 switch (event) { 305 case SND_SOC_DAPM_POST_PMU: 306 msleep(30); 307 snd_soc_component_update_bits(component, RT1308_POWER_STATUS, 308 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 309 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT); 310 msleep(40); 311 break; 312 case SND_SOC_DAPM_PRE_PMD: 313 snd_soc_component_update_bits(component, RT1308_POWER_STATUS, 314 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 0); 315 usleep_range(150000, 200000); 316 break; 317 318 default: 319 break; 320 } 321 322 return 0; 323 } 324 325 static const char * const rt1308_rx_data_ch_select[] = { 326 "LR", 327 "LL", 328 "RL", 329 "RR", 330 }; 331 332 static SOC_ENUM_SINGLE_DECL(rt1308_rx_data_ch_enum, RT1308_DATA_PATH, 24, 333 rt1308_rx_data_ch_select); 334 335 static const struct snd_kcontrol_new rt1308_snd_controls[] = { 336 337 /* I2S Data Channel Selection */ 338 SOC_ENUM("RX Channel Select", rt1308_rx_data_ch_enum), 339 }; 340 341 static const struct snd_kcontrol_new rt1308_sto_dac_l = 342 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, 343 RT1308_DVOL_MUTE_L_EN_SFT, 1, 1); 344 345 static const struct snd_kcontrol_new rt1308_sto_dac_r = 346 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, 347 RT1308_DVOL_MUTE_R_EN_SFT, 1, 1); 348 349 static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = { 350 /* Audio Interface */ 351 SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), 352 353 /* Supply Widgets */ 354 SND_SOC_DAPM_SUPPLY("MBIAS20U", RT1308_POWER, 355 RT1308_POW_MBIAS20U_BIT, 0, NULL, 0), 356 SND_SOC_DAPM_SUPPLY("ALDO", RT1308_POWER, 357 RT1308_POW_ALDO_BIT, 0, NULL, 0), 358 SND_SOC_DAPM_SUPPLY("DBG", RT1308_POWER, 359 RT1308_POW_DBG_BIT, 0, NULL, 0), 360 SND_SOC_DAPM_SUPPLY("DACL", RT1308_POWER, 361 RT1308_POW_DACL_BIT, 0, NULL, 0), 362 SND_SOC_DAPM_SUPPLY("CLK25M", RT1308_POWER, 363 RT1308_POW_CLK25M_BIT, 0, NULL, 0), 364 SND_SOC_DAPM_SUPPLY("ADC_R", RT1308_POWER, 365 RT1308_POW_ADC_R_BIT, 0, NULL, 0), 366 SND_SOC_DAPM_SUPPLY("ADC_L", RT1308_POWER, 367 RT1308_POW_ADC_L_BIT, 0, NULL, 0), 368 SND_SOC_DAPM_SUPPLY("DLDO", RT1308_POWER, 369 RT1308_POW_DLDO_BIT, 0, NULL, 0), 370 SND_SOC_DAPM_SUPPLY("VREF", RT1308_POWER, 371 RT1308_POW_VREF_BIT, 0, NULL, 0), 372 SND_SOC_DAPM_SUPPLY("MIXER_R", RT1308_POWER, 373 RT1308_POW_MIXER_R_BIT, 0, NULL, 0), 374 SND_SOC_DAPM_SUPPLY("MIXER_L", RT1308_POWER, 375 RT1308_POW_MIXER_L_BIT, 0, NULL, 0), 376 SND_SOC_DAPM_SUPPLY("MBIAS4U", RT1308_POWER, 377 RT1308_POW_MBIAS4U_BIT, 0, NULL, 0), 378 SND_SOC_DAPM_SUPPLY("PLL2_LDO", RT1308_POWER, 379 RT1308_POW_PLL2_LDO_EN_BIT, 0, NULL, 0), 380 SND_SOC_DAPM_SUPPLY("PLL2B", RT1308_POWER, 381 RT1308_POW_PLL2B_EN_BIT, 0, NULL, 0), 382 SND_SOC_DAPM_SUPPLY("PLL2F", RT1308_POWER, 383 RT1308_POW_PLL2F_EN_BIT, 0, NULL, 0), 384 SND_SOC_DAPM_SUPPLY("PLL2F2", RT1308_POWER, 385 RT1308_POW_PLL2F2_EN_BIT, 0, NULL, 0), 386 SND_SOC_DAPM_SUPPLY("PLL2B2", RT1308_POWER, 387 RT1308_POW_PLL2B2_EN_BIT, 0, NULL, 0), 388 389 /* Digital Interface */ 390 SND_SOC_DAPM_SUPPLY("DAC Power", RT1308_POWER, 391 RT1308_POW_DAC1_BIT, 0, NULL, 0), 392 SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), 393 SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_l), 394 SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_r), 395 396 /* Output Lines */ 397 SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, 398 rt1308_classd_event, 399 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 400 SND_SOC_DAPM_OUTPUT("SPOL"), 401 SND_SOC_DAPM_OUTPUT("SPOR"), 402 }; 403 404 static const struct snd_soc_dapm_route rt1308_dapm_routes[] = { 405 406 { "DAC", NULL, "AIF1RX" }, 407 408 { "DAC", NULL, "MBIAS20U" }, 409 { "DAC", NULL, "ALDO" }, 410 { "DAC", NULL, "DBG" }, 411 { "DAC", NULL, "DACL" }, 412 { "DAC", NULL, "CLK25M" }, 413 { "DAC", NULL, "ADC_R" }, 414 { "DAC", NULL, "ADC_L" }, 415 { "DAC", NULL, "DLDO" }, 416 { "DAC", NULL, "VREF" }, 417 { "DAC", NULL, "MIXER_R" }, 418 { "DAC", NULL, "MIXER_L" }, 419 { "DAC", NULL, "MBIAS4U" }, 420 { "DAC", NULL, "PLL2_LDO" }, 421 { "DAC", NULL, "PLL2B" }, 422 { "DAC", NULL, "PLL2F" }, 423 { "DAC", NULL, "PLL2F2" }, 424 { "DAC", NULL, "PLL2B2" }, 425 426 { "DAC L", "Switch", "DAC" }, 427 { "DAC R", "Switch", "DAC" }, 428 { "DAC L", NULL, "DAC Power" }, 429 { "DAC R", NULL, "DAC Power" }, 430 431 { "CLASS D", NULL, "DAC L" }, 432 { "CLASS D", NULL, "DAC R" }, 433 { "SPOL", NULL, "CLASS D" }, 434 { "SPOR", NULL, "CLASS D" }, 435 }; 436 437 static int rt1308_get_clk_info(int sclk, int rate) 438 { 439 int i; 440 static const int pd[] = {1, 2, 3, 4, 6, 8, 12, 16}; 441 442 if (sclk <= 0 || rate <= 0) 443 return -EINVAL; 444 445 rate = rate << 8; 446 for (i = 0; i < ARRAY_SIZE(pd); i++) 447 if (sclk == rate * pd[i]) 448 return i; 449 450 return -EINVAL; 451 } 452 453 static int rt1308_hw_params(struct snd_pcm_substream *substream, 454 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 455 { 456 struct snd_soc_component *component = dai->component; 457 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 458 unsigned int val_len = 0, val_clk, mask_clk; 459 int pre_div, bclk_ms, frame_size; 460 461 rt1308->lrck = params_rate(params); 462 pre_div = rt1308_get_clk_info(rt1308->sysclk, rt1308->lrck); 463 if (pre_div < 0) { 464 dev_err(component->dev, 465 "Unsupported clock setting %d\n", rt1308->lrck); 466 return -EINVAL; 467 } 468 469 frame_size = snd_soc_params_to_frame_size(params); 470 if (frame_size < 0) { 471 dev_err(component->dev, "Unsupported frame size: %d\n", 472 frame_size); 473 return -EINVAL; 474 } 475 476 bclk_ms = frame_size > 32; 477 rt1308->bclk = rt1308->lrck * (32 << bclk_ms); 478 479 dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", 480 bclk_ms, pre_div, dai->id); 481 482 dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n", 483 rt1308->lrck, pre_div, dai->id); 484 485 switch (params_width(params)) { 486 case 16: 487 val_len |= RT1308_I2S_DL_SEL_16B; 488 break; 489 case 20: 490 val_len |= RT1308_I2S_DL_SEL_20B; 491 break; 492 case 24: 493 val_len |= RT1308_I2S_DL_SEL_24B; 494 break; 495 case 8: 496 val_len |= RT1308_I2S_DL_SEL_8B; 497 break; 498 default: 499 return -EINVAL; 500 } 501 502 switch (dai->id) { 503 case RT1308_AIF1: 504 mask_clk = RT1308_DIV_FS_SYS_MASK; 505 val_clk = pre_div << RT1308_DIV_FS_SYS_SFT; 506 snd_soc_component_update_bits(component, 507 RT1308_I2S_SET_2, RT1308_I2S_DL_SEL_MASK, 508 val_len); 509 break; 510 default: 511 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); 512 return -EINVAL; 513 } 514 515 snd_soc_component_update_bits(component, RT1308_CLK_1, 516 mask_clk, val_clk); 517 518 return 0; 519 } 520 521 static int rt1308_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 522 { 523 struct snd_soc_component *component = dai->component; 524 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 525 unsigned int reg_val = 0, reg1_val = 0; 526 527 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 528 case SND_SOC_DAIFMT_CBS_CFS: 529 rt1308->master = 0; 530 break; 531 default: 532 return -EINVAL; 533 } 534 535 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 536 case SND_SOC_DAIFMT_I2S: 537 break; 538 case SND_SOC_DAIFMT_LEFT_J: 539 reg_val |= RT1308_I2S_DF_SEL_LEFT; 540 break; 541 case SND_SOC_DAIFMT_DSP_A: 542 reg_val |= RT1308_I2S_DF_SEL_PCM_A; 543 break; 544 case SND_SOC_DAIFMT_DSP_B: 545 reg_val |= RT1308_I2S_DF_SEL_PCM_B; 546 break; 547 default: 548 return -EINVAL; 549 } 550 551 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 552 case SND_SOC_DAIFMT_NB_NF: 553 break; 554 case SND_SOC_DAIFMT_IB_NF: 555 reg1_val |= RT1308_I2S_BCLK_INV; 556 break; 557 default: 558 return -EINVAL; 559 } 560 561 switch (dai->id) { 562 case RT1308_AIF1: 563 snd_soc_component_update_bits(component, 564 RT1308_I2S_SET_1, RT1308_I2S_DF_SEL_MASK, 565 reg_val); 566 snd_soc_component_update_bits(component, 567 RT1308_I2S_SET_2, RT1308_I2S_BCLK_MASK, 568 reg1_val); 569 break; 570 default: 571 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); 572 return -EINVAL; 573 } 574 return 0; 575 } 576 577 static int rt1308_set_component_sysclk(struct snd_soc_component *component, 578 int clk_id, int source, unsigned int freq, int dir) 579 { 580 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 581 unsigned int reg_val = 0; 582 583 if (freq == rt1308->sysclk && clk_id == rt1308->sysclk_src) 584 return 0; 585 586 switch (clk_id) { 587 case RT1308_FS_SYS_S_MCLK: 588 reg_val |= RT1308_SEL_FS_SYS_SRC_MCLK; 589 snd_soc_component_update_bits(component, 590 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, 591 RT1308_MCLK_DET_EN); 592 break; 593 case RT1308_FS_SYS_S_BCLK: 594 reg_val |= RT1308_SEL_FS_SYS_SRC_BCLK; 595 break; 596 case RT1308_FS_SYS_S_PLL: 597 reg_val |= RT1308_SEL_FS_SYS_SRC_PLL; 598 break; 599 case RT1308_FS_SYS_S_RCCLK: 600 reg_val |= RT1308_SEL_FS_SYS_SRC_RCCLK; 601 break; 602 default: 603 dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); 604 return -EINVAL; 605 } 606 snd_soc_component_update_bits(component, RT1308_CLK_1, 607 RT1308_SEL_FS_SYS_MASK, reg_val); 608 rt1308->sysclk = freq; 609 rt1308->sysclk_src = clk_id; 610 611 dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n", 612 freq, clk_id); 613 614 return 0; 615 } 616 617 static int rt1308_set_component_pll(struct snd_soc_component *component, 618 int pll_id, int source, unsigned int freq_in, 619 unsigned int freq_out) 620 { 621 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 622 struct rl6231_pll_code pll_code; 623 int ret; 624 625 if (source == rt1308->pll_src && freq_in == rt1308->pll_in && 626 freq_out == rt1308->pll_out) 627 return 0; 628 629 if (!freq_in || !freq_out) { 630 dev_dbg(component->dev, "PLL disabled\n"); 631 632 rt1308->pll_in = 0; 633 rt1308->pll_out = 0; 634 snd_soc_component_update_bits(component, 635 RT1308_CLK_1, RT1308_SEL_FS_SYS_MASK, 636 RT1308_SEL_FS_SYS_SRC_MCLK); 637 return 0; 638 } 639 640 switch (source) { 641 case RT1308_PLL_S_MCLK: 642 snd_soc_component_update_bits(component, 643 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 644 RT1308_SEL_PLL_SRC_MCLK); 645 snd_soc_component_update_bits(component, 646 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, 647 RT1308_MCLK_DET_EN); 648 break; 649 case RT1308_PLL_S_BCLK: 650 snd_soc_component_update_bits(component, 651 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 652 RT1308_SEL_PLL_SRC_BCLK); 653 break; 654 case RT1308_PLL_S_RCCLK: 655 snd_soc_component_update_bits(component, 656 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, 657 RT1308_SEL_PLL_SRC_RCCLK); 658 freq_in = 25000000; 659 break; 660 default: 661 dev_err(component->dev, "Unknown PLL Source %d\n", source); 662 return -EINVAL; 663 } 664 665 ret = rl6231_pll_calc(freq_in, freq_out, &pll_code); 666 if (ret < 0) { 667 dev_err(component->dev, "Unsupported input clock %d\n", freq_in); 668 return ret; 669 } 670 671 dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n", 672 pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), 673 pll_code.n_code, pll_code.k_code); 674 675 snd_soc_component_write(component, RT1308_PLL_1, 676 (pll_code.k_code << RT1308_PLL1_K_SFT) | 677 (pll_code.m_bp << RT1308_PLL1_M_BYPASS_SFT) | 678 ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1308_PLL1_M_SFT) | 679 (pll_code.n_code << RT1308_PLL1_N_SFT)); 680 681 rt1308->pll_in = freq_in; 682 rt1308->pll_out = freq_out; 683 rt1308->pll_src = source; 684 685 return 0; 686 } 687 688 static int rt1308_probe(struct snd_soc_component *component) 689 { 690 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 691 692 rt1308->component = component; 693 694 return rt1308_reg_init(component); 695 } 696 697 static void rt1308_remove(struct snd_soc_component *component) 698 { 699 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 700 701 regmap_write(rt1308->regmap, RT1308_RESET, 0); 702 } 703 704 #ifdef CONFIG_PM 705 static int rt1308_suspend(struct snd_soc_component *component) 706 { 707 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 708 709 regcache_cache_only(rt1308->regmap, true); 710 regcache_mark_dirty(rt1308->regmap); 711 712 return 0; 713 } 714 715 static int rt1308_resume(struct snd_soc_component *component) 716 { 717 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); 718 719 regcache_cache_only(rt1308->regmap, false); 720 regcache_sync(rt1308->regmap); 721 722 return 0; 723 } 724 #else 725 #define rt1308_suspend NULL 726 #define rt1308_resume NULL 727 #endif 728 729 #define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 730 #define RT1308_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ 731 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ 732 SNDRV_PCM_FMTBIT_S24_LE) 733 734 static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { 735 .hw_params = rt1308_hw_params, 736 .set_fmt = rt1308_set_dai_fmt, 737 }; 738 739 static struct snd_soc_dai_driver rt1308_dai[] = { 740 { 741 .name = "rt1308-aif", 742 .playback = { 743 .stream_name = "AIF1 Playback", 744 .channels_min = 1, 745 .channels_max = 2, 746 .rates = RT1308_STEREO_RATES, 747 .formats = RT1308_FORMATS, 748 }, 749 .ops = &rt1308_aif_dai_ops, 750 }, 751 }; 752 753 static const struct snd_soc_component_driver soc_component_dev_rt1308 = { 754 .probe = rt1308_probe, 755 .remove = rt1308_remove, 756 .suspend = rt1308_suspend, 757 .resume = rt1308_resume, 758 .controls = rt1308_snd_controls, 759 .num_controls = ARRAY_SIZE(rt1308_snd_controls), 760 .dapm_widgets = rt1308_dapm_widgets, 761 .num_dapm_widgets = ARRAY_SIZE(rt1308_dapm_widgets), 762 .dapm_routes = rt1308_dapm_routes, 763 .num_dapm_routes = ARRAY_SIZE(rt1308_dapm_routes), 764 .set_sysclk = rt1308_set_component_sysclk, 765 .set_pll = rt1308_set_component_pll, 766 .use_pmdown_time = 1, 767 .endianness = 1, 768 }; 769 770 static const struct regmap_config rt1308_regmap = { 771 .reg_bits = 8, 772 .val_bits = 32, 773 .max_register = RT1308_MAX_REG, 774 .volatile_reg = rt1308_volatile_register, 775 .readable_reg = rt1308_readable_register, 776 .cache_type = REGCACHE_RBTREE, 777 .reg_defaults = rt1308_reg, 778 .num_reg_defaults = ARRAY_SIZE(rt1308_reg), 779 .use_single_read = true, 780 .use_single_write = true, 781 }; 782 783 #ifdef CONFIG_OF 784 static const struct of_device_id rt1308_of_match[] = { 785 { .compatible = "realtek,rt1308", }, 786 { }, 787 }; 788 MODULE_DEVICE_TABLE(of, rt1308_of_match); 789 #endif 790 791 #ifdef CONFIG_ACPI 792 static const struct acpi_device_id rt1308_acpi_match[] = { 793 { "10EC1308", 0, }, 794 { }, 795 }; 796 MODULE_DEVICE_TABLE(acpi, rt1308_acpi_match); 797 #endif 798 799 static const struct i2c_device_id rt1308_i2c_id[] = { 800 { "rt1308", 0 }, 801 { } 802 }; 803 MODULE_DEVICE_TABLE(i2c, rt1308_i2c_id); 804 805 static void rt1308_efuse(struct rt1308_priv *rt1308) 806 { 807 regmap_write(rt1308->regmap, RT1308_RESET, 0); 808 809 regmap_write(rt1308->regmap, RT1308_POWER_STATUS, 0x01800000); 810 msleep(100); 811 regmap_write(rt1308->regmap, RT1308_EFUSE_1, 0x44fe0f00); 812 msleep(20); 813 regmap_write(rt1308->regmap, RT1308_PVDD_OFFSET_CTL, 0x10000000); 814 } 815 816 static int rt1308_i2c_probe(struct i2c_client *i2c) 817 { 818 struct rt1308_priv *rt1308; 819 int ret; 820 unsigned int val; 821 822 rt1308 = devm_kzalloc(&i2c->dev, sizeof(struct rt1308_priv), 823 GFP_KERNEL); 824 if (rt1308 == NULL) 825 return -ENOMEM; 826 827 i2c_set_clientdata(i2c, rt1308); 828 829 rt1308->regmap = devm_regmap_init_i2c(i2c, &rt1308_regmap); 830 if (IS_ERR(rt1308->regmap)) { 831 ret = PTR_ERR(rt1308->regmap); 832 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 833 ret); 834 return ret; 835 } 836 837 regmap_read(rt1308->regmap, RT1308_VEN_DEV_ID, &val); 838 /* ignore last byte difference */ 839 if ((val & 0xFFFFFF00) != RT1308_DEVICE_ID_NUM) { 840 dev_err(&i2c->dev, 841 "Device with ID register %x is not rt1308\n", val); 842 return -ENODEV; 843 } 844 845 rt1308_efuse(rt1308); 846 847 return devm_snd_soc_register_component(&i2c->dev, 848 &soc_component_dev_rt1308, 849 rt1308_dai, ARRAY_SIZE(rt1308_dai)); 850 } 851 852 static void rt1308_i2c_shutdown(struct i2c_client *client) 853 { 854 struct rt1308_priv *rt1308 = i2c_get_clientdata(client); 855 856 regmap_write(rt1308->regmap, RT1308_RESET, 0); 857 } 858 859 static struct i2c_driver rt1308_i2c_driver = { 860 .driver = { 861 .name = "rt1308", 862 .of_match_table = of_match_ptr(rt1308_of_match), 863 .acpi_match_table = ACPI_PTR(rt1308_acpi_match), 864 }, 865 .probe_new = rt1308_i2c_probe, 866 .shutdown = rt1308_i2c_shutdown, 867 .id_table = rt1308_i2c_id, 868 }; 869 module_i2c_driver(rt1308_i2c_driver); 870 871 MODULE_DESCRIPTION("ASoC RT1308 amplifier driver"); 872 MODULE_AUTHOR("Derek Fang <derek.fang@realtek.com>"); 873 MODULE_LICENSE("GPL v2"); 874