1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * wm8510.c -- WM8510 ALSA Soc Audio driver 4 * 5 * Copyright 2006 Wolfson Microelectronics PLC. 6 * 7 * Author: Liam Girdwood <lrg@slimlogic.co.uk> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/moduleparam.h> 12 #include <linux/kernel.h> 13 #include <linux/init.h> 14 #include <linux/delay.h> 15 #include <linux/pm.h> 16 #include <linux/i2c.h> 17 #include <linux/spi/spi.h> 18 #include <linux/slab.h> 19 #include <linux/of_device.h> 20 #include <linux/regmap.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/initval.h> 26 27 #include "wm8510.h" 28 29 /* 30 * wm8510 register cache 31 * We can't read the WM8510 register space when we are 32 * using 2 wire for device control, so we cache them instead. 33 */ 34 static const struct reg_default wm8510_reg_defaults[] = { 35 { 1, 0x0000 }, 36 { 2, 0x0000 }, 37 { 3, 0x0000 }, 38 { 4, 0x0050 }, 39 { 5, 0x0000 }, 40 { 6, 0x0140 }, 41 { 7, 0x0000 }, 42 { 8, 0x0000 }, 43 { 9, 0x0000 }, 44 { 10, 0x0000 }, 45 { 11, 0x00ff }, 46 { 12, 0x0000 }, 47 { 13, 0x0000 }, 48 { 14, 0x0100 }, 49 { 15, 0x00ff }, 50 { 16, 0x0000 }, 51 { 17, 0x0000 }, 52 { 18, 0x012c }, 53 { 19, 0x002c }, 54 { 20, 0x002c }, 55 { 21, 0x002c }, 56 { 22, 0x002c }, 57 { 23, 0x0000 }, 58 { 24, 0x0032 }, 59 { 25, 0x0000 }, 60 { 26, 0x0000 }, 61 { 27, 0x0000 }, 62 { 28, 0x0000 }, 63 { 29, 0x0000 }, 64 { 30, 0x0000 }, 65 { 31, 0x0000 }, 66 { 32, 0x0038 }, 67 { 33, 0x000b }, 68 { 34, 0x0032 }, 69 { 35, 0x0000 }, 70 { 36, 0x0008 }, 71 { 37, 0x000c }, 72 { 38, 0x0093 }, 73 { 39, 0x00e9 }, 74 { 40, 0x0000 }, 75 { 41, 0x0000 }, 76 { 42, 0x0000 }, 77 { 43, 0x0000 }, 78 { 44, 0x0003 }, 79 { 45, 0x0010 }, 80 { 46, 0x0000 }, 81 { 47, 0x0000 }, 82 { 48, 0x0000 }, 83 { 49, 0x0002 }, 84 { 50, 0x0001 }, 85 { 51, 0x0000 }, 86 { 52, 0x0000 }, 87 { 53, 0x0000 }, 88 { 54, 0x0039 }, 89 { 55, 0x0000 }, 90 { 56, 0x0001 }, 91 }; 92 93 static bool wm8510_volatile(struct device *dev, unsigned int reg) 94 { 95 switch (reg) { 96 case WM8510_RESET: 97 return true; 98 default: 99 return false; 100 } 101 } 102 103 #define WM8510_POWER1_BIASEN 0x08 104 #define WM8510_POWER1_BUFIOEN 0x10 105 106 #define wm8510_reset(c) snd_soc_component_write(c, WM8510_RESET, 0) 107 108 /* codec private data */ 109 struct wm8510_priv { 110 struct regmap *regmap; 111 }; 112 113 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" }; 114 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; 115 static const char *wm8510_alc[] = { "ALC", "Limiter" }; 116 117 static const struct soc_enum wm8510_enum[] = { 118 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */ 119 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */ 120 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp), 121 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc), 122 }; 123 124 static const struct snd_kcontrol_new wm8510_snd_controls[] = { 125 126 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0), 127 128 SOC_ENUM("DAC Companding", wm8510_enum[1]), 129 SOC_ENUM("ADC Companding", wm8510_enum[0]), 130 131 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]), 132 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0), 133 134 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0), 135 136 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0), 137 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0), 138 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0), 139 140 SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0), 141 142 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0), 143 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0), 144 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0), 145 146 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0), 147 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0), 148 149 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0), 150 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0), 151 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0), 152 153 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0), 154 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0), 155 SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0), 156 157 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]), 158 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0), 159 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0), 160 161 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0), 162 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0), 163 164 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0), 165 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0), 166 167 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0), 168 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1), 169 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0), 170 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0), 171 172 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0), 173 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1), 174 }; 175 176 /* Speaker Output Mixer */ 177 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = { 178 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0), 179 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0), 180 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0), 181 }; 182 183 /* Mono Output Mixer */ 184 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = { 185 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0), 186 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0), 187 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0), 188 }; 189 190 static const struct snd_kcontrol_new wm8510_boost_controls[] = { 191 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1), 192 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0), 193 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0), 194 }; 195 196 static const struct snd_kcontrol_new wm8510_micpga_controls[] = { 197 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0), 198 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0), 199 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0), 200 }; 201 202 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = { 203 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0, 204 &wm8510_speaker_mixer_controls[0], 205 ARRAY_SIZE(wm8510_speaker_mixer_controls)), 206 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0, 207 &wm8510_mono_mixer_controls[0], 208 ARRAY_SIZE(wm8510_mono_mixer_controls)), 209 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0), 210 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0), 211 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0), 212 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0), 213 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0), 214 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0), 215 216 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0, 217 &wm8510_micpga_controls[0], 218 ARRAY_SIZE(wm8510_micpga_controls)), 219 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0, 220 &wm8510_boost_controls[0], 221 ARRAY_SIZE(wm8510_boost_controls)), 222 223 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0), 224 225 SND_SOC_DAPM_INPUT("MICN"), 226 SND_SOC_DAPM_INPUT("MICP"), 227 SND_SOC_DAPM_INPUT("AUX"), 228 SND_SOC_DAPM_OUTPUT("MONOOUT"), 229 SND_SOC_DAPM_OUTPUT("SPKOUTP"), 230 SND_SOC_DAPM_OUTPUT("SPKOUTN"), 231 }; 232 233 static const struct snd_soc_dapm_route wm8510_dapm_routes[] = { 234 /* Mono output mixer */ 235 {"Mono Mixer", "PCM Playback Switch", "DAC"}, 236 {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, 237 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"}, 238 239 /* Speaker output mixer */ 240 {"Speaker Mixer", "PCM Playback Switch", "DAC"}, 241 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"}, 242 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"}, 243 244 /* Outputs */ 245 {"Mono Out", NULL, "Mono Mixer"}, 246 {"MONOOUT", NULL, "Mono Out"}, 247 {"SpkN Out", NULL, "Speaker Mixer"}, 248 {"SpkP Out", NULL, "Speaker Mixer"}, 249 {"SPKOUTN", NULL, "SpkN Out"}, 250 {"SPKOUTP", NULL, "SpkP Out"}, 251 252 /* Microphone PGA */ 253 {"Mic PGA", "MICN Switch", "MICN"}, 254 {"Mic PGA", "MICP Switch", "MICP"}, 255 { "Mic PGA", "AUX Switch", "Aux Input" }, 256 257 /* Boost Mixer */ 258 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"}, 259 {"Boost Mixer", "Mic Volume", "MICP"}, 260 {"Boost Mixer", "Aux Volume", "Aux Input"}, 261 262 {"ADC", NULL, "Boost Mixer"}, 263 }; 264 265 struct pll_ { 266 unsigned int pre_div:4; /* prescale - 1 */ 267 unsigned int n:4; 268 unsigned int k; 269 }; 270 271 static struct pll_ pll_div; 272 273 /* The size in bits of the pll divide multiplied by 10 274 * to allow rounding later */ 275 #define FIXED_PLL_SIZE ((1 << 24) * 10) 276 277 static void pll_factors(unsigned int target, unsigned int source) 278 { 279 unsigned long long Kpart; 280 unsigned int K, Ndiv, Nmod; 281 282 Ndiv = target / source; 283 if (Ndiv < 6) { 284 source >>= 1; 285 pll_div.pre_div = 1; 286 Ndiv = target / source; 287 } else 288 pll_div.pre_div = 0; 289 290 if ((Ndiv < 6) || (Ndiv > 12)) 291 printk(KERN_WARNING 292 "WM8510 N value %u outwith recommended range!d\n", 293 Ndiv); 294 295 pll_div.n = Ndiv; 296 Nmod = target % source; 297 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 298 299 do_div(Kpart, source); 300 301 K = Kpart & 0xFFFFFFFF; 302 303 /* Check if we need to round */ 304 if ((K % 10) >= 5) 305 K += 5; 306 307 /* Move down to proper range now rounding is done */ 308 K /= 10; 309 310 pll_div.k = K; 311 } 312 313 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 314 int source, unsigned int freq_in, unsigned int freq_out) 315 { 316 struct snd_soc_component *component = codec_dai->component; 317 u16 reg; 318 319 if (freq_in == 0 || freq_out == 0) { 320 /* Clock CODEC directly from MCLK */ 321 reg = snd_soc_component_read(component, WM8510_CLOCK); 322 snd_soc_component_write(component, WM8510_CLOCK, reg & 0x0ff); 323 324 /* Turn off PLL */ 325 reg = snd_soc_component_read(component, WM8510_POWER1); 326 snd_soc_component_write(component, WM8510_POWER1, reg & 0x1df); 327 return 0; 328 } 329 330 pll_factors(freq_out*4, freq_in); 331 332 snd_soc_component_write(component, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n); 333 snd_soc_component_write(component, WM8510_PLLK1, pll_div.k >> 18); 334 snd_soc_component_write(component, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff); 335 snd_soc_component_write(component, WM8510_PLLK3, pll_div.k & 0x1ff); 336 reg = snd_soc_component_read(component, WM8510_POWER1); 337 snd_soc_component_write(component, WM8510_POWER1, reg | 0x020); 338 339 /* Run CODEC from PLL instead of MCLK */ 340 reg = snd_soc_component_read(component, WM8510_CLOCK); 341 snd_soc_component_write(component, WM8510_CLOCK, reg | 0x100); 342 343 return 0; 344 } 345 346 /* 347 * Configure WM8510 clock dividers. 348 */ 349 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 350 int div_id, int div) 351 { 352 struct snd_soc_component *component = codec_dai->component; 353 u16 reg; 354 355 switch (div_id) { 356 case WM8510_OPCLKDIV: 357 reg = snd_soc_component_read(component, WM8510_GPIO) & 0x1cf; 358 snd_soc_component_write(component, WM8510_GPIO, reg | div); 359 break; 360 case WM8510_MCLKDIV: 361 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x11f; 362 snd_soc_component_write(component, WM8510_CLOCK, reg | div); 363 break; 364 case WM8510_ADCCLK: 365 reg = snd_soc_component_read(component, WM8510_ADC) & 0x1f7; 366 snd_soc_component_write(component, WM8510_ADC, reg | div); 367 break; 368 case WM8510_DACCLK: 369 reg = snd_soc_component_read(component, WM8510_DAC) & 0x1f7; 370 snd_soc_component_write(component, WM8510_DAC, reg | div); 371 break; 372 case WM8510_BCLKDIV: 373 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x1e3; 374 snd_soc_component_write(component, WM8510_CLOCK, reg | div); 375 break; 376 default: 377 return -EINVAL; 378 } 379 380 return 0; 381 } 382 383 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai, 384 unsigned int fmt) 385 { 386 struct snd_soc_component *component = codec_dai->component; 387 u16 iface = 0; 388 u16 clk = snd_soc_component_read(component, WM8510_CLOCK) & 0x1fe; 389 390 /* set master/slave audio interface */ 391 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 392 case SND_SOC_DAIFMT_CBM_CFM: 393 clk |= 0x0001; 394 break; 395 case SND_SOC_DAIFMT_CBS_CFS: 396 break; 397 default: 398 return -EINVAL; 399 } 400 401 /* interface format */ 402 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 403 case SND_SOC_DAIFMT_I2S: 404 iface |= 0x0010; 405 break; 406 case SND_SOC_DAIFMT_RIGHT_J: 407 break; 408 case SND_SOC_DAIFMT_LEFT_J: 409 iface |= 0x0008; 410 break; 411 case SND_SOC_DAIFMT_DSP_A: 412 iface |= 0x00018; 413 break; 414 default: 415 return -EINVAL; 416 } 417 418 /* clock inversion */ 419 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 420 case SND_SOC_DAIFMT_NB_NF: 421 break; 422 case SND_SOC_DAIFMT_IB_IF: 423 iface |= 0x0180; 424 break; 425 case SND_SOC_DAIFMT_IB_NF: 426 iface |= 0x0100; 427 break; 428 case SND_SOC_DAIFMT_NB_IF: 429 iface |= 0x0080; 430 break; 431 default: 432 return -EINVAL; 433 } 434 435 snd_soc_component_write(component, WM8510_IFACE, iface); 436 snd_soc_component_write(component, WM8510_CLOCK, clk); 437 return 0; 438 } 439 440 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream, 441 struct snd_pcm_hw_params *params, 442 struct snd_soc_dai *dai) 443 { 444 struct snd_soc_component *component = dai->component; 445 u16 iface = snd_soc_component_read(component, WM8510_IFACE) & 0x19f; 446 u16 adn = snd_soc_component_read(component, WM8510_ADD) & 0x1f1; 447 448 /* bit size */ 449 switch (params_width(params)) { 450 case 16: 451 break; 452 case 20: 453 iface |= 0x0020; 454 break; 455 case 24: 456 iface |= 0x0040; 457 break; 458 case 32: 459 iface |= 0x0060; 460 break; 461 } 462 463 /* filter coefficient */ 464 switch (params_rate(params)) { 465 case 8000: 466 adn |= 0x5 << 1; 467 break; 468 case 11025: 469 adn |= 0x4 << 1; 470 break; 471 case 16000: 472 adn |= 0x3 << 1; 473 break; 474 case 22050: 475 adn |= 0x2 << 1; 476 break; 477 case 32000: 478 adn |= 0x1 << 1; 479 break; 480 case 44100: 481 case 48000: 482 break; 483 } 484 485 snd_soc_component_write(component, WM8510_IFACE, iface); 486 snd_soc_component_write(component, WM8510_ADD, adn); 487 return 0; 488 } 489 490 static int wm8510_mute(struct snd_soc_dai *dai, int mute, int direction) 491 { 492 struct snd_soc_component *component = dai->component; 493 u16 mute_reg = snd_soc_component_read(component, WM8510_DAC) & 0xffbf; 494 495 if (mute) 496 snd_soc_component_write(component, WM8510_DAC, mute_reg | 0x40); 497 else 498 snd_soc_component_write(component, WM8510_DAC, mute_reg); 499 return 0; 500 } 501 502 /* liam need to make this lower power with dapm */ 503 static int wm8510_set_bias_level(struct snd_soc_component *component, 504 enum snd_soc_bias_level level) 505 { 506 struct wm8510_priv *wm8510 = snd_soc_component_get_drvdata(component); 507 u16 power1 = snd_soc_component_read(component, WM8510_POWER1) & ~0x3; 508 509 switch (level) { 510 case SND_SOC_BIAS_ON: 511 case SND_SOC_BIAS_PREPARE: 512 power1 |= 0x1; /* VMID 50k */ 513 snd_soc_component_write(component, WM8510_POWER1, power1); 514 break; 515 516 case SND_SOC_BIAS_STANDBY: 517 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN; 518 519 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 520 regcache_sync(wm8510->regmap); 521 522 /* Initial cap charge at VMID 5k */ 523 snd_soc_component_write(component, WM8510_POWER1, power1 | 0x3); 524 mdelay(100); 525 } 526 527 power1 |= 0x2; /* VMID 500k */ 528 snd_soc_component_write(component, WM8510_POWER1, power1); 529 break; 530 531 case SND_SOC_BIAS_OFF: 532 snd_soc_component_write(component, WM8510_POWER1, 0); 533 snd_soc_component_write(component, WM8510_POWER2, 0); 534 snd_soc_component_write(component, WM8510_POWER3, 0); 535 break; 536 } 537 538 return 0; 539 } 540 541 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 542 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 543 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) 544 545 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 546 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 547 548 static const struct snd_soc_dai_ops wm8510_dai_ops = { 549 .hw_params = wm8510_pcm_hw_params, 550 .mute_stream = wm8510_mute, 551 .set_fmt = wm8510_set_dai_fmt, 552 .set_clkdiv = wm8510_set_dai_clkdiv, 553 .set_pll = wm8510_set_dai_pll, 554 .no_capture_mute = 1, 555 }; 556 557 static struct snd_soc_dai_driver wm8510_dai = { 558 .name = "wm8510-hifi", 559 .playback = { 560 .stream_name = "Playback", 561 .channels_min = 2, 562 .channels_max = 2, 563 .rates = WM8510_RATES, 564 .formats = WM8510_FORMATS,}, 565 .capture = { 566 .stream_name = "Capture", 567 .channels_min = 2, 568 .channels_max = 2, 569 .rates = WM8510_RATES, 570 .formats = WM8510_FORMATS,}, 571 .ops = &wm8510_dai_ops, 572 .symmetric_rate = 1, 573 }; 574 575 static int wm8510_probe(struct snd_soc_component *component) 576 { 577 wm8510_reset(component); 578 579 return 0; 580 } 581 582 static const struct snd_soc_component_driver soc_component_dev_wm8510 = { 583 .probe = wm8510_probe, 584 .set_bias_level = wm8510_set_bias_level, 585 .controls = wm8510_snd_controls, 586 .num_controls = ARRAY_SIZE(wm8510_snd_controls), 587 .dapm_widgets = wm8510_dapm_widgets, 588 .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets), 589 .dapm_routes = wm8510_dapm_routes, 590 .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes), 591 .suspend_bias_off = 1, 592 .idle_bias_on = 1, 593 .use_pmdown_time = 1, 594 .endianness = 1, 595 }; 596 597 static const struct of_device_id wm8510_of_match[] = { 598 { .compatible = "wlf,wm8510" }, 599 { }, 600 }; 601 MODULE_DEVICE_TABLE(of, wm8510_of_match); 602 603 static const struct regmap_config wm8510_regmap = { 604 .reg_bits = 7, 605 .val_bits = 9, 606 .max_register = WM8510_MONOMIX, 607 608 .reg_defaults = wm8510_reg_defaults, 609 .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults), 610 .cache_type = REGCACHE_RBTREE, 611 612 .volatile_reg = wm8510_volatile, 613 }; 614 615 #if defined(CONFIG_SPI_MASTER) 616 static int wm8510_spi_probe(struct spi_device *spi) 617 { 618 struct wm8510_priv *wm8510; 619 int ret; 620 621 wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv), 622 GFP_KERNEL); 623 if (wm8510 == NULL) 624 return -ENOMEM; 625 626 wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap); 627 if (IS_ERR(wm8510->regmap)) 628 return PTR_ERR(wm8510->regmap); 629 630 spi_set_drvdata(spi, wm8510); 631 632 ret = devm_snd_soc_register_component(&spi->dev, 633 &soc_component_dev_wm8510, &wm8510_dai, 1); 634 635 return ret; 636 } 637 638 static struct spi_driver wm8510_spi_driver = { 639 .driver = { 640 .name = "wm8510", 641 .of_match_table = wm8510_of_match, 642 }, 643 .probe = wm8510_spi_probe, 644 }; 645 #endif /* CONFIG_SPI_MASTER */ 646 647 #if IS_ENABLED(CONFIG_I2C) 648 static int wm8510_i2c_probe(struct i2c_client *i2c) 649 { 650 struct wm8510_priv *wm8510; 651 int ret; 652 653 wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv), 654 GFP_KERNEL); 655 if (wm8510 == NULL) 656 return -ENOMEM; 657 658 wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap); 659 if (IS_ERR(wm8510->regmap)) 660 return PTR_ERR(wm8510->regmap); 661 662 i2c_set_clientdata(i2c, wm8510); 663 664 ret = devm_snd_soc_register_component(&i2c->dev, 665 &soc_component_dev_wm8510, &wm8510_dai, 1); 666 667 return ret; 668 } 669 670 static const struct i2c_device_id wm8510_i2c_id[] = { 671 { "wm8510", 0 }, 672 { } 673 }; 674 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id); 675 676 static struct i2c_driver wm8510_i2c_driver = { 677 .driver = { 678 .name = "wm8510", 679 .of_match_table = wm8510_of_match, 680 }, 681 .probe = wm8510_i2c_probe, 682 .id_table = wm8510_i2c_id, 683 }; 684 #endif 685 686 static int __init wm8510_modinit(void) 687 { 688 int ret = 0; 689 #if IS_ENABLED(CONFIG_I2C) 690 ret = i2c_add_driver(&wm8510_i2c_driver); 691 if (ret != 0) { 692 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n", 693 ret); 694 } 695 #endif 696 #if defined(CONFIG_SPI_MASTER) 697 ret = spi_register_driver(&wm8510_spi_driver); 698 if (ret != 0) { 699 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n", 700 ret); 701 } 702 #endif 703 return ret; 704 } 705 module_init(wm8510_modinit); 706 707 static void __exit wm8510_exit(void) 708 { 709 #if IS_ENABLED(CONFIG_I2C) 710 i2c_del_driver(&wm8510_i2c_driver); 711 #endif 712 #if defined(CONFIG_SPI_MASTER) 713 spi_unregister_driver(&wm8510_spi_driver); 714 #endif 715 } 716 module_exit(wm8510_exit); 717 718 MODULE_DESCRIPTION("ASoC WM8510 driver"); 719 MODULE_AUTHOR("Liam Girdwood"); 720 MODULE_LICENSE("GPL"); 721