1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * cs35l33.c -- CS35L33 ALSA SoC audio driver 4 * 5 * Copyright 2016 Cirrus Logic, Inc. 6 * 7 * Author: Paul Handrigan <paul.handrigan@cirrus.com> 8 */ 9 #include <linux/module.h> 10 #include <linux/moduleparam.h> 11 #include <linux/kernel.h> 12 #include <linux/init.h> 13 #include <linux/delay.h> 14 #include <linux/i2c.h> 15 #include <linux/slab.h> 16 #include <linux/workqueue.h> 17 #include <linux/platform_device.h> 18 #include <sound/core.h> 19 #include <sound/pcm.h> 20 #include <sound/pcm_params.h> 21 #include <sound/soc.h> 22 #include <sound/soc-dapm.h> 23 #include <sound/initval.h> 24 #include <sound/tlv.h> 25 #include <linux/gpio.h> 26 #include <linux/gpio/consumer.h> 27 #include <sound/cs35l33.h> 28 #include <linux/pm_runtime.h> 29 #include <linux/regulator/consumer.h> 30 #include <linux/regulator/machine.h> 31 #include <linux/of_gpio.h> 32 #include <linux/of.h> 33 #include <linux/of_device.h> 34 #include <linux/of_irq.h> 35 36 #include "cs35l33.h" 37 #include "cirrus_legacy.h" 38 39 #define CS35L33_BOOT_DELAY 50 40 41 struct cs35l33_private { 42 struct snd_soc_component *component; 43 struct cs35l33_pdata pdata; 44 struct regmap *regmap; 45 struct gpio_desc *reset_gpio; 46 bool amp_cal; 47 int mclk_int; 48 struct regulator_bulk_data core_supplies[2]; 49 int num_core_supplies; 50 bool is_tdm_mode; 51 bool enable_soft_ramp; 52 }; 53 54 static const struct reg_default cs35l33_reg[] = { 55 {CS35L33_PWRCTL1, 0x85}, 56 {CS35L33_PWRCTL2, 0xFE}, 57 {CS35L33_CLK_CTL, 0x0C}, 58 {CS35L33_BST_PEAK_CTL, 0x90}, 59 {CS35L33_PROTECT_CTL, 0x55}, 60 {CS35L33_BST_CTL1, 0x00}, 61 {CS35L33_BST_CTL2, 0x01}, 62 {CS35L33_ADSP_CTL, 0x00}, 63 {CS35L33_ADC_CTL, 0xC8}, 64 {CS35L33_DAC_CTL, 0x14}, 65 {CS35L33_DIG_VOL_CTL, 0x00}, 66 {CS35L33_CLASSD_CTL, 0x04}, 67 {CS35L33_AMP_CTL, 0x90}, 68 {CS35L33_INT_MASK_1, 0xFF}, 69 {CS35L33_INT_MASK_2, 0xFF}, 70 {CS35L33_DIAG_LOCK, 0x00}, 71 {CS35L33_DIAG_CTRL_1, 0x40}, 72 {CS35L33_DIAG_CTRL_2, 0x00}, 73 {CS35L33_HG_MEMLDO_CTL, 0x62}, 74 {CS35L33_HG_REL_RATE, 0x03}, 75 {CS35L33_LDO_DEL, 0x12}, 76 {CS35L33_HG_HEAD, 0x0A}, 77 {CS35L33_HG_EN, 0x05}, 78 {CS35L33_TX_VMON, 0x00}, 79 {CS35L33_TX_IMON, 0x03}, 80 {CS35L33_TX_VPMON, 0x02}, 81 {CS35L33_TX_VBSTMON, 0x05}, 82 {CS35L33_TX_FLAG, 0x06}, 83 {CS35L33_TX_EN1, 0x00}, 84 {CS35L33_TX_EN2, 0x00}, 85 {CS35L33_TX_EN3, 0x00}, 86 {CS35L33_TX_EN4, 0x00}, 87 {CS35L33_RX_AUD, 0x40}, 88 {CS35L33_RX_SPLY, 0x03}, 89 {CS35L33_RX_ALIVE, 0x04}, 90 {CS35L33_BST_CTL4, 0x63}, 91 }; 92 93 static const struct reg_sequence cs35l33_patch[] = { 94 { 0x00, 0x99, 0 }, 95 { 0x59, 0x02, 0 }, 96 { 0x52, 0x30, 0 }, 97 { 0x39, 0x45, 0 }, 98 { 0x57, 0x30, 0 }, 99 { 0x2C, 0x68, 0 }, 100 { 0x00, 0x00, 0 }, 101 }; 102 103 static bool cs35l33_volatile_register(struct device *dev, unsigned int reg) 104 { 105 switch (reg) { 106 case CS35L33_DEVID_AB: 107 case CS35L33_DEVID_CD: 108 case CS35L33_DEVID_E: 109 case CS35L33_REV_ID: 110 case CS35L33_INT_STATUS_1: 111 case CS35L33_INT_STATUS_2: 112 case CS35L33_HG_STATUS: 113 return true; 114 default: 115 return false; 116 } 117 } 118 119 static bool cs35l33_writeable_register(struct device *dev, unsigned int reg) 120 { 121 switch (reg) { 122 /* these are read only registers */ 123 case CS35L33_DEVID_AB: 124 case CS35L33_DEVID_CD: 125 case CS35L33_DEVID_E: 126 case CS35L33_REV_ID: 127 case CS35L33_INT_STATUS_1: 128 case CS35L33_INT_STATUS_2: 129 case CS35L33_HG_STATUS: 130 return false; 131 default: 132 return true; 133 } 134 } 135 136 static bool cs35l33_readable_register(struct device *dev, unsigned int reg) 137 { 138 switch (reg) { 139 case CS35L33_DEVID_AB: 140 case CS35L33_DEVID_CD: 141 case CS35L33_DEVID_E: 142 case CS35L33_REV_ID: 143 case CS35L33_PWRCTL1: 144 case CS35L33_PWRCTL2: 145 case CS35L33_CLK_CTL: 146 case CS35L33_BST_PEAK_CTL: 147 case CS35L33_PROTECT_CTL: 148 case CS35L33_BST_CTL1: 149 case CS35L33_BST_CTL2: 150 case CS35L33_ADSP_CTL: 151 case CS35L33_ADC_CTL: 152 case CS35L33_DAC_CTL: 153 case CS35L33_DIG_VOL_CTL: 154 case CS35L33_CLASSD_CTL: 155 case CS35L33_AMP_CTL: 156 case CS35L33_INT_MASK_1: 157 case CS35L33_INT_MASK_2: 158 case CS35L33_INT_STATUS_1: 159 case CS35L33_INT_STATUS_2: 160 case CS35L33_DIAG_LOCK: 161 case CS35L33_DIAG_CTRL_1: 162 case CS35L33_DIAG_CTRL_2: 163 case CS35L33_HG_MEMLDO_CTL: 164 case CS35L33_HG_REL_RATE: 165 case CS35L33_LDO_DEL: 166 case CS35L33_HG_HEAD: 167 case CS35L33_HG_EN: 168 case CS35L33_TX_VMON: 169 case CS35L33_TX_IMON: 170 case CS35L33_TX_VPMON: 171 case CS35L33_TX_VBSTMON: 172 case CS35L33_TX_FLAG: 173 case CS35L33_TX_EN1: 174 case CS35L33_TX_EN2: 175 case CS35L33_TX_EN3: 176 case CS35L33_TX_EN4: 177 case CS35L33_RX_AUD: 178 case CS35L33_RX_SPLY: 179 case CS35L33_RX_ALIVE: 180 case CS35L33_BST_CTL4: 181 return true; 182 default: 183 return false; 184 } 185 } 186 187 static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0); 188 static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0); 189 190 static const struct snd_kcontrol_new cs35l33_snd_controls[] = { 191 192 SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL, 193 4, 0x09, 0, classd_ctl_tlv), 194 SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL, 195 0, 0x34, 0xE4, dac_tlv), 196 }; 197 198 static int cs35l33_spkrdrv_event(struct snd_soc_dapm_widget *w, 199 struct snd_kcontrol *kcontrol, int event) 200 { 201 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 202 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 203 204 switch (event) { 205 case SND_SOC_DAPM_POST_PMU: 206 if (!priv->amp_cal) { 207 usleep_range(8000, 9000); 208 priv->amp_cal = true; 209 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL, 210 CS35L33_AMP_CAL, 0); 211 dev_dbg(component->dev, "Amp calibration done\n"); 212 } 213 dev_dbg(component->dev, "Amp turned on\n"); 214 break; 215 case SND_SOC_DAPM_POST_PMD: 216 dev_dbg(component->dev, "Amp turned off\n"); 217 break; 218 default: 219 dev_err(component->dev, "Invalid event = 0x%x\n", event); 220 break; 221 } 222 223 return 0; 224 } 225 226 static int cs35l33_sdin_event(struct snd_soc_dapm_widget *w, 227 struct snd_kcontrol *kcontrol, int event) 228 { 229 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 230 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 231 unsigned int val; 232 233 switch (event) { 234 case SND_SOC_DAPM_PRE_PMU: 235 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, 236 CS35L33_PDN_BST, 0); 237 val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM; 238 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, 239 CS35L33_PDN_TDM, val); 240 dev_dbg(component->dev, "BST turned on\n"); 241 break; 242 case SND_SOC_DAPM_POST_PMU: 243 dev_dbg(component->dev, "SDIN turned on\n"); 244 if (!priv->amp_cal) { 245 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL, 246 CS35L33_AMP_CAL, CS35L33_AMP_CAL); 247 dev_dbg(component->dev, "Amp calibration started\n"); 248 usleep_range(10000, 11000); 249 } 250 break; 251 case SND_SOC_DAPM_POST_PMD: 252 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, 253 CS35L33_PDN_TDM, CS35L33_PDN_TDM); 254 usleep_range(4000, 4100); 255 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, 256 CS35L33_PDN_BST, CS35L33_PDN_BST); 257 dev_dbg(component->dev, "BST and SDIN turned off\n"); 258 break; 259 default: 260 dev_err(component->dev, "Invalid event = 0x%x\n", event); 261 262 } 263 264 return 0; 265 } 266 267 static int cs35l33_sdout_event(struct snd_soc_dapm_widget *w, 268 struct snd_kcontrol *kcontrol, int event) 269 { 270 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 271 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 272 unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM; 273 unsigned int mask2 = CS35L33_SDOUT_3ST_TDM; 274 unsigned int val, val2; 275 276 switch (event) { 277 case SND_SOC_DAPM_PRE_PMU: 278 if (priv->is_tdm_mode) { 279 /* set sdout_3st_i2s and reset pdn_tdm */ 280 val = CS35L33_SDOUT_3ST_I2S; 281 /* reset sdout_3st_tdm */ 282 val2 = 0; 283 } else { 284 /* reset sdout_3st_i2s and set pdn_tdm */ 285 val = CS35L33_PDN_TDM; 286 /* set sdout_3st_tdm */ 287 val2 = CS35L33_SDOUT_3ST_TDM; 288 } 289 dev_dbg(component->dev, "SDOUT turned on\n"); 290 break; 291 case SND_SOC_DAPM_PRE_PMD: 292 val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM; 293 val2 = CS35L33_SDOUT_3ST_TDM; 294 dev_dbg(component->dev, "SDOUT turned off\n"); 295 break; 296 default: 297 dev_err(component->dev, "Invalid event = 0x%x\n", event); 298 return 0; 299 } 300 301 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, 302 mask, val); 303 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 304 mask2, val2); 305 306 return 0; 307 } 308 309 static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = { 310 311 SND_SOC_DAPM_OUTPUT("SPK"), 312 SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0, 313 cs35l33_spkrdrv_event, 314 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 315 SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2, 316 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU | 317 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 318 319 SND_SOC_DAPM_INPUT("MON"), 320 321 SND_SOC_DAPM_ADC("VMON", NULL, 322 CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1), 323 SND_SOC_DAPM_ADC("IMON", NULL, 324 CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1), 325 SND_SOC_DAPM_ADC("VPMON", NULL, 326 CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1), 327 SND_SOC_DAPM_ADC("VBSTMON", NULL, 328 CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1), 329 330 SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0, 331 cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU | 332 SND_SOC_DAPM_PRE_PMD), 333 }; 334 335 static const struct snd_soc_dapm_route cs35l33_audio_map[] = { 336 {"SDIN", NULL, "CS35L33 Playback"}, 337 {"SPKDRV", NULL, "SDIN"}, 338 {"SPK", NULL, "SPKDRV"}, 339 340 {"VMON", NULL, "MON"}, 341 {"IMON", NULL, "MON"}, 342 343 {"SDOUT", NULL, "VMON"}, 344 {"SDOUT", NULL, "IMON"}, 345 {"CS35L33 Capture", NULL, "SDOUT"}, 346 }; 347 348 static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = { 349 {"SPKDRV", NULL, "VPMON"}, 350 {"VPMON", NULL, "CS35L33 Playback"}, 351 }; 352 353 static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = { 354 {"SDOUT", NULL, "VPMON"}, 355 {"VPMON", NULL, "MON"}, 356 {"SDOUT", NULL, "VBSTMON"}, 357 {"VBSTMON", NULL, "MON"}, 358 }; 359 360 static int cs35l33_set_bias_level(struct snd_soc_component *component, 361 enum snd_soc_bias_level level) 362 { 363 unsigned int val; 364 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 365 366 switch (level) { 367 case SND_SOC_BIAS_ON: 368 break; 369 case SND_SOC_BIAS_PREPARE: 370 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, 371 CS35L33_PDN_ALL, 0); 372 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 373 CS35L33_MCLKDIS, 0); 374 break; 375 case SND_SOC_BIAS_STANDBY: 376 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, 377 CS35L33_PDN_ALL, CS35L33_PDN_ALL); 378 regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val); 379 usleep_range(1000, 1100); 380 if (val & CS35L33_PDN_DONE) 381 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 382 CS35L33_MCLKDIS, CS35L33_MCLKDIS); 383 break; 384 case SND_SOC_BIAS_OFF: 385 break; 386 default: 387 return -EINVAL; 388 } 389 390 return 0; 391 } 392 393 struct cs35l33_mclk_div { 394 int mclk; 395 int srate; 396 u8 adsp_rate; 397 u8 int_fs_ratio; 398 }; 399 400 static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = { 401 /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */ 402 {5644800, 11025, 0x4, CS35L33_INT_FS_RATE}, 403 {5644800, 22050, 0x8, CS35L33_INT_FS_RATE}, 404 {5644800, 44100, 0xC, CS35L33_INT_FS_RATE}, 405 406 {6000000, 8000, 0x1, 0}, 407 {6000000, 11025, 0x2, 0}, 408 {6000000, 11029, 0x3, 0}, 409 {6000000, 12000, 0x4, 0}, 410 {6000000, 16000, 0x5, 0}, 411 {6000000, 22050, 0x6, 0}, 412 {6000000, 22059, 0x7, 0}, 413 {6000000, 24000, 0x8, 0}, 414 {6000000, 32000, 0x9, 0}, 415 {6000000, 44100, 0xA, 0}, 416 {6000000, 44118, 0xB, 0}, 417 {6000000, 48000, 0xC, 0}, 418 419 {6144000, 8000, 0x1, CS35L33_INT_FS_RATE}, 420 {6144000, 12000, 0x4, CS35L33_INT_FS_RATE}, 421 {6144000, 16000, 0x5, CS35L33_INT_FS_RATE}, 422 {6144000, 24000, 0x8, CS35L33_INT_FS_RATE}, 423 {6144000, 32000, 0x9, CS35L33_INT_FS_RATE}, 424 {6144000, 48000, 0xC, CS35L33_INT_FS_RATE}, 425 }; 426 427 static int cs35l33_get_mclk_coeff(int mclk, int srate) 428 { 429 int i; 430 431 for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) { 432 if (cs35l33_mclk_coeffs[i].mclk == mclk && 433 cs35l33_mclk_coeffs[i].srate == srate) 434 return i; 435 } 436 return -EINVAL; 437 } 438 439 static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 440 { 441 struct snd_soc_component *component = codec_dai->component; 442 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 443 444 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 445 case SND_SOC_DAIFMT_CBM_CFM: 446 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL, 447 CS35L33_MS_MASK, CS35L33_MS_MASK); 448 dev_dbg(component->dev, "Audio port in master mode\n"); 449 break; 450 case SND_SOC_DAIFMT_CBS_CFS: 451 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL, 452 CS35L33_MS_MASK, 0); 453 dev_dbg(component->dev, "Audio port in slave mode\n"); 454 break; 455 default: 456 return -EINVAL; 457 } 458 459 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 460 case SND_SOC_DAIFMT_DSP_A: 461 /* 462 * tdm mode in cs35l33 resembles dsp-a mode very 463 * closely, it is dsp-a with fsync shifted left by half bclk 464 */ 465 priv->is_tdm_mode = true; 466 dev_dbg(component->dev, "Audio port in TDM mode\n"); 467 break; 468 case SND_SOC_DAIFMT_I2S: 469 priv->is_tdm_mode = false; 470 dev_dbg(component->dev, "Audio port in I2S mode\n"); 471 break; 472 default: 473 return -EINVAL; 474 } 475 476 return 0; 477 } 478 479 static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream, 480 struct snd_pcm_hw_params *params, 481 struct snd_soc_dai *dai) 482 { 483 struct snd_soc_component *component = dai->component; 484 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 485 int sample_size = params_width(params); 486 int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params)); 487 488 if (coeff < 0) 489 return coeff; 490 491 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 492 CS35L33_ADSP_FS | CS35L33_INT_FS_RATE, 493 cs35l33_mclk_coeffs[coeff].int_fs_ratio 494 | cs35l33_mclk_coeffs[coeff].adsp_rate); 495 496 if (priv->is_tdm_mode) { 497 sample_size = (sample_size / 8) - 1; 498 if (sample_size > 2) 499 sample_size = 2; 500 regmap_update_bits(priv->regmap, CS35L33_RX_AUD, 501 CS35L33_AUDIN_RX_DEPTH, 502 sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT); 503 } 504 505 dev_dbg(component->dev, "sample rate=%d, bits per sample=%d\n", 506 params_rate(params), params_width(params)); 507 508 return 0; 509 } 510 511 static const unsigned int cs35l33_src_rates[] = { 512 8000, 11025, 11029, 12000, 16000, 22050, 513 22059, 24000, 32000, 44100, 44118, 48000 514 }; 515 516 static const struct snd_pcm_hw_constraint_list cs35l33_constraints = { 517 .count = ARRAY_SIZE(cs35l33_src_rates), 518 .list = cs35l33_src_rates, 519 }; 520 521 static int cs35l33_pcm_startup(struct snd_pcm_substream *substream, 522 struct snd_soc_dai *dai) 523 { 524 snd_pcm_hw_constraint_list(substream->runtime, 0, 525 SNDRV_PCM_HW_PARAM_RATE, 526 &cs35l33_constraints); 527 return 0; 528 } 529 530 static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate) 531 { 532 struct snd_soc_component *component = dai->component; 533 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 534 535 if (tristate) { 536 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, 537 CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S); 538 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 539 CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM); 540 } else { 541 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, 542 CS35L33_SDOUT_3ST_I2S, 0); 543 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, 544 CS35L33_SDOUT_3ST_TDM, 0); 545 } 546 547 return 0; 548 } 549 550 static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, 551 unsigned int rx_mask, int slots, int slot_width) 552 { 553 struct snd_soc_component *component = dai->component; 554 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 555 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 556 unsigned int reg, bit_pos, i; 557 int slot, slot_num; 558 559 if (slot_width != 8) 560 return -EINVAL; 561 562 /* scan rx_mask for aud slot */ 563 slot = ffs(rx_mask) - 1; 564 if (slot >= 0) { 565 regmap_update_bits(priv->regmap, CS35L33_RX_AUD, 566 CS35L33_X_LOC, slot); 567 dev_dbg(component->dev, "Audio starts from slots %d", slot); 568 } 569 570 /* 571 * scan tx_mask: vmon(2 slots); imon (2 slots); 572 * vpmon (1 slot) vbstmon (1 slot) 573 */ 574 slot = ffs(tx_mask) - 1; 575 slot_num = 0; 576 577 for (i = 0; i < 2 ; i++) { 578 /* disable vpmon/vbstmon: enable later if set in tx_mask */ 579 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i, 580 CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE 581 | CS35L33_X_LOC); 582 } 583 584 /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/ 585 snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route, 586 ARRAY_SIZE(cs35l33_vp_vbst_mon_route)); 587 588 while (slot >= 0) { 589 /* configure VMON_TX_LOC */ 590 if (slot_num == 0) { 591 regmap_update_bits(priv->regmap, CS35L33_TX_VMON, 592 CS35L33_X_STATE | CS35L33_X_LOC, slot); 593 dev_dbg(component->dev, "VMON enabled in slots %d-%d", 594 slot, slot + 1); 595 } 596 597 /* configure IMON_TX_LOC */ 598 if (slot_num == 3) { 599 regmap_update_bits(priv->regmap, CS35L33_TX_IMON, 600 CS35L33_X_STATE | CS35L33_X_LOC, slot); 601 dev_dbg(component->dev, "IMON enabled in slots %d-%d", 602 slot, slot + 1); 603 } 604 605 /* configure VPMON_TX_LOC */ 606 if (slot_num == 4) { 607 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON, 608 CS35L33_X_STATE | CS35L33_X_LOC, slot); 609 snd_soc_dapm_add_routes(dapm, 610 &cs35l33_vp_vbst_mon_route[0], 2); 611 dev_dbg(component->dev, "VPMON enabled in slots %d", slot); 612 } 613 614 /* configure VBSTMON_TX_LOC */ 615 if (slot_num == 5) { 616 regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON, 617 CS35L33_X_STATE | CS35L33_X_LOC, slot); 618 snd_soc_dapm_add_routes(dapm, 619 &cs35l33_vp_vbst_mon_route[2], 2); 620 dev_dbg(component->dev, 621 "VBSTMON enabled in slots %d", slot); 622 } 623 624 /* Enable the relevant tx slot */ 625 reg = CS35L33_TX_EN4 - (slot/8); 626 bit_pos = slot - ((slot / 8) * (8)); 627 regmap_update_bits(priv->regmap, reg, 628 1 << bit_pos, 1 << bit_pos); 629 630 tx_mask &= ~(1 << slot); 631 slot = ffs(tx_mask) - 1; 632 slot_num++; 633 } 634 635 return 0; 636 } 637 638 static int cs35l33_component_set_sysclk(struct snd_soc_component *component, 639 int clk_id, int source, unsigned int freq, int dir) 640 { 641 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component); 642 643 switch (freq) { 644 case CS35L33_MCLK_5644: 645 case CS35L33_MCLK_6: 646 case CS35L33_MCLK_6144: 647 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, 648 CS35L33_MCLKDIV2, 0); 649 cs35l33->mclk_int = freq; 650 break; 651 case CS35L33_MCLK_11289: 652 case CS35L33_MCLK_12: 653 case CS35L33_MCLK_12288: 654 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, 655 CS35L33_MCLKDIV2, CS35L33_MCLKDIV2); 656 cs35l33->mclk_int = freq/2; 657 break; 658 default: 659 cs35l33->mclk_int = 0; 660 return -EINVAL; 661 } 662 663 dev_dbg(component->dev, "external mclk freq=%d, internal mclk freq=%d\n", 664 freq, cs35l33->mclk_int); 665 666 return 0; 667 } 668 669 static const struct snd_soc_dai_ops cs35l33_ops = { 670 .startup = cs35l33_pcm_startup, 671 .set_tristate = cs35l33_set_tristate, 672 .set_fmt = cs35l33_set_dai_fmt, 673 .hw_params = cs35l33_pcm_hw_params, 674 .set_tdm_slot = cs35l33_set_tdm_slot, 675 }; 676 677 static struct snd_soc_dai_driver cs35l33_dai = { 678 .name = "cs35l33-dai", 679 .id = 0, 680 .playback = { 681 .stream_name = "CS35L33 Playback", 682 .channels_min = 1, 683 .channels_max = 1, 684 .rates = CS35L33_RATES, 685 .formats = CS35L33_FORMATS, 686 }, 687 .capture = { 688 .stream_name = "CS35L33 Capture", 689 .channels_min = 2, 690 .channels_max = 2, 691 .rates = CS35L33_RATES, 692 .formats = CS35L33_FORMATS, 693 }, 694 .ops = &cs35l33_ops, 695 .symmetric_rate = 1, 696 }; 697 698 static int cs35l33_set_hg_data(struct snd_soc_component *component, 699 struct cs35l33_pdata *pdata) 700 { 701 struct cs35l33_hg *hg_config = &pdata->hg_config; 702 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 703 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component); 704 705 if (hg_config->enable_hg_algo) { 706 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, 707 CS35L33_MEM_DEPTH_MASK, 708 hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT); 709 regmap_write(priv->regmap, CS35L33_HG_REL_RATE, 710 hg_config->release_rate); 711 regmap_update_bits(priv->regmap, CS35L33_HG_HEAD, 712 CS35L33_HD_RM_MASK, 713 hg_config->hd_rm << CS35L33_HD_RM_SHIFT); 714 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, 715 CS35L33_LDO_THLD_MASK, 716 hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT); 717 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, 718 CS35L33_LDO_DISABLE_MASK, 719 hg_config->ldo_path_disable << 720 CS35L33_LDO_DISABLE_SHIFT); 721 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, 722 CS35L33_LDO_ENTRY_DELAY_MASK, 723 hg_config->ldo_entry_delay << 724 CS35L33_LDO_ENTRY_DELAY_SHIFT); 725 if (hg_config->vp_hg_auto) { 726 regmap_update_bits(priv->regmap, CS35L33_HG_EN, 727 CS35L33_VP_HG_AUTO_MASK, 728 CS35L33_VP_HG_AUTO_MASK); 729 snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route, 730 ARRAY_SIZE(cs35l33_vphg_auto_route)); 731 } 732 regmap_update_bits(priv->regmap, CS35L33_HG_EN, 733 CS35L33_VP_HG_MASK, 734 hg_config->vp_hg << CS35L33_VP_HG_SHIFT); 735 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, 736 CS35L33_VP_HG_RATE_MASK, 737 hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT); 738 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, 739 CS35L33_VP_HG_VA_MASK, 740 hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT); 741 regmap_update_bits(priv->regmap, CS35L33_HG_EN, 742 CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK); 743 } 744 return 0; 745 } 746 747 static int cs35l33_set_bst_ipk(struct snd_soc_component *component, unsigned int bst) 748 { 749 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component); 750 int ret = 0, steps = 0; 751 752 /* Boost current in uA */ 753 if (bst > 3600000 || bst < 1850000) { 754 dev_err(component->dev, "Invalid boost current %d\n", bst); 755 ret = -EINVAL; 756 goto err; 757 } 758 759 if (bst % 15625) { 760 dev_err(component->dev, "Current not a multiple of 15625uA (%d)\n", 761 bst); 762 ret = -EINVAL; 763 goto err; 764 } 765 766 while (bst > 1850000) { 767 bst -= 15625; 768 steps++; 769 } 770 771 regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL, 772 steps+0x70); 773 774 err: 775 return ret; 776 } 777 778 static int cs35l33_probe(struct snd_soc_component *component) 779 { 780 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component); 781 782 cs35l33->component = component; 783 pm_runtime_get_sync(component->dev); 784 785 regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL, 786 CS35L33_ALIVE_WD_DIS, 0x8); 787 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2, 788 CS35L33_ALIVE_WD_DIS2, 789 CS35L33_ALIVE_WD_DIS2); 790 791 /* Set Platform Data */ 792 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1, 793 CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl); 794 regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL, 795 CS35L33_AMP_DRV_SEL_MASK, 796 cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT); 797 798 if (cs35l33->pdata.boost_ipk) 799 cs35l33_set_bst_ipk(component, cs35l33->pdata.boost_ipk); 800 801 if (cs35l33->enable_soft_ramp) { 802 snd_soc_component_update_bits(component, CS35L33_DAC_CTL, 803 CS35L33_DIGSFT, CS35L33_DIGSFT); 804 snd_soc_component_update_bits(component, CS35L33_DAC_CTL, 805 CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate); 806 } else { 807 snd_soc_component_update_bits(component, CS35L33_DAC_CTL, 808 CS35L33_DIGSFT, 0); 809 } 810 811 /* update IMON scaling rate if different from default of 0x8 */ 812 if (cs35l33->pdata.imon_adc_scale != 0x8) 813 snd_soc_component_update_bits(component, CS35L33_ADC_CTL, 814 CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale); 815 816 cs35l33_set_hg_data(component, &(cs35l33->pdata)); 817 818 /* 819 * unmask important interrupts that causes the chip to enter 820 * speaker safe mode and hence deserves user attention 821 */ 822 regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1, 823 CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT | 824 CS35L33_M_CAL_ERR, 0); 825 826 pm_runtime_put_sync(component->dev); 827 828 return 0; 829 } 830 831 static const struct snd_soc_component_driver soc_component_dev_cs35l33 = { 832 .probe = cs35l33_probe, 833 .set_bias_level = cs35l33_set_bias_level, 834 .set_sysclk = cs35l33_component_set_sysclk, 835 .controls = cs35l33_snd_controls, 836 .num_controls = ARRAY_SIZE(cs35l33_snd_controls), 837 .dapm_widgets = cs35l33_dapm_widgets, 838 .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets), 839 .dapm_routes = cs35l33_audio_map, 840 .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map), 841 .use_pmdown_time = 1, 842 .endianness = 1, 843 }; 844 845 static const struct regmap_config cs35l33_regmap = { 846 .reg_bits = 8, 847 .val_bits = 8, 848 849 .max_register = CS35L33_MAX_REGISTER, 850 .reg_defaults = cs35l33_reg, 851 .num_reg_defaults = ARRAY_SIZE(cs35l33_reg), 852 .volatile_reg = cs35l33_volatile_register, 853 .readable_reg = cs35l33_readable_register, 854 .writeable_reg = cs35l33_writeable_register, 855 .cache_type = REGCACHE_RBTREE, 856 .use_single_read = true, 857 .use_single_write = true, 858 }; 859 860 static int __maybe_unused cs35l33_runtime_resume(struct device *dev) 861 { 862 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev); 863 int ret; 864 865 dev_dbg(dev, "%s\n", __func__); 866 867 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); 868 869 ret = regulator_bulk_enable(cs35l33->num_core_supplies, 870 cs35l33->core_supplies); 871 if (ret != 0) { 872 dev_err(dev, "Failed to enable core supplies: %d\n", ret); 873 return ret; 874 } 875 876 regcache_cache_only(cs35l33->regmap, false); 877 878 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1); 879 880 msleep(CS35L33_BOOT_DELAY); 881 882 ret = regcache_sync(cs35l33->regmap); 883 if (ret != 0) { 884 dev_err(dev, "Failed to restore register cache\n"); 885 goto err; 886 } 887 888 return 0; 889 890 err: 891 regcache_cache_only(cs35l33->regmap, true); 892 regulator_bulk_disable(cs35l33->num_core_supplies, 893 cs35l33->core_supplies); 894 895 return ret; 896 } 897 898 static int __maybe_unused cs35l33_runtime_suspend(struct device *dev) 899 { 900 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev); 901 902 dev_dbg(dev, "%s\n", __func__); 903 904 /* redo the calibration in next power up */ 905 cs35l33->amp_cal = false; 906 907 regcache_cache_only(cs35l33->regmap, true); 908 regcache_mark_dirty(cs35l33->regmap); 909 regulator_bulk_disable(cs35l33->num_core_supplies, 910 cs35l33->core_supplies); 911 912 return 0; 913 } 914 915 static const struct dev_pm_ops cs35l33_pm_ops = { 916 SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend, 917 cs35l33_runtime_resume, 918 NULL) 919 }; 920 921 static int cs35l33_get_hg_data(const struct device_node *np, 922 struct cs35l33_pdata *pdata) 923 { 924 struct device_node *hg; 925 struct cs35l33_hg *hg_config = &pdata->hg_config; 926 u32 val32; 927 928 hg = of_get_child_by_name(np, "cirrus,hg-algo"); 929 hg_config->enable_hg_algo = hg ? true : false; 930 931 if (hg_config->enable_hg_algo) { 932 if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0) 933 hg_config->mem_depth = val32; 934 if (of_property_read_u32(hg, "cirrus,release-rate", 935 &val32) >= 0) 936 hg_config->release_rate = val32; 937 if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0) 938 hg_config->ldo_thld = val32; 939 if (of_property_read_u32(hg, "cirrus,ldo-path-disable", 940 &val32) >= 0) 941 hg_config->ldo_path_disable = val32; 942 if (of_property_read_u32(hg, "cirrus,ldo-entry-delay", 943 &val32) >= 0) 944 hg_config->ldo_entry_delay = val32; 945 946 hg_config->vp_hg_auto = of_property_read_bool(hg, 947 "cirrus,vp-hg-auto"); 948 949 if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0) 950 hg_config->vp_hg = val32; 951 if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0) 952 hg_config->vp_hg_rate = val32; 953 if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0) 954 hg_config->vp_hg_va = val32; 955 } 956 957 of_node_put(hg); 958 959 return 0; 960 } 961 962 static irqreturn_t cs35l33_irq_thread(int irq, void *data) 963 { 964 struct cs35l33_private *cs35l33 = data; 965 struct snd_soc_component *component = cs35l33->component; 966 unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2; 967 968 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2, 969 &sticky_val2); 970 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1, 971 &sticky_val1); 972 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2); 973 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1); 974 975 /* Check to see if the unmasked bits are active, 976 * if not then exit. 977 */ 978 if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2)) 979 return IRQ_NONE; 980 981 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1, 982 ¤t_val); 983 984 /* handle the interrupts */ 985 986 if (sticky_val1 & CS35L33_AMP_SHORT) { 987 dev_crit(component->dev, "Amp short error\n"); 988 if (!(current_val & CS35L33_AMP_SHORT)) { 989 dev_dbg(component->dev, 990 "Amp short error release\n"); 991 regmap_update_bits(cs35l33->regmap, 992 CS35L33_AMP_CTL, 993 CS35L33_AMP_SHORT_RLS, 0); 994 regmap_update_bits(cs35l33->regmap, 995 CS35L33_AMP_CTL, 996 CS35L33_AMP_SHORT_RLS, 997 CS35L33_AMP_SHORT_RLS); 998 regmap_update_bits(cs35l33->regmap, 999 CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS, 1000 0); 1001 } 1002 } 1003 1004 if (sticky_val1 & CS35L33_CAL_ERR) { 1005 dev_err(component->dev, "Cal error\n"); 1006 1007 /* redo the calibration in next power up */ 1008 cs35l33->amp_cal = false; 1009 1010 if (!(current_val & CS35L33_CAL_ERR)) { 1011 dev_dbg(component->dev, "Cal error release\n"); 1012 regmap_update_bits(cs35l33->regmap, 1013 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, 1014 0); 1015 regmap_update_bits(cs35l33->regmap, 1016 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, 1017 CS35L33_CAL_ERR_RLS); 1018 regmap_update_bits(cs35l33->regmap, 1019 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, 1020 0); 1021 } 1022 } 1023 1024 if (sticky_val1 & CS35L33_OTE) { 1025 dev_crit(component->dev, "Over temperature error\n"); 1026 if (!(current_val & CS35L33_OTE)) { 1027 dev_dbg(component->dev, 1028 "Over temperature error release\n"); 1029 regmap_update_bits(cs35l33->regmap, 1030 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0); 1031 regmap_update_bits(cs35l33->regmap, 1032 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 1033 CS35L33_OTE_RLS); 1034 regmap_update_bits(cs35l33->regmap, 1035 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0); 1036 } 1037 } 1038 1039 if (sticky_val1 & CS35L33_OTW) { 1040 dev_err(component->dev, "Over temperature warning\n"); 1041 if (!(current_val & CS35L33_OTW)) { 1042 dev_dbg(component->dev, 1043 "Over temperature warning release\n"); 1044 regmap_update_bits(cs35l33->regmap, 1045 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0); 1046 regmap_update_bits(cs35l33->regmap, 1047 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 1048 CS35L33_OTW_RLS); 1049 regmap_update_bits(cs35l33->regmap, 1050 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0); 1051 } 1052 } 1053 if (CS35L33_ALIVE_ERR & sticky_val1) 1054 dev_err(component->dev, "ERROR: ADSPCLK Interrupt\n"); 1055 1056 if (CS35L33_MCLK_ERR & sticky_val1) 1057 dev_err(component->dev, "ERROR: MCLK Interrupt\n"); 1058 1059 if (CS35L33_VMON_OVFL & sticky_val2) 1060 dev_err(component->dev, 1061 "ERROR: VMON Overflow Interrupt\n"); 1062 1063 if (CS35L33_IMON_OVFL & sticky_val2) 1064 dev_err(component->dev, 1065 "ERROR: IMON Overflow Interrupt\n"); 1066 1067 if (CS35L33_VPMON_OVFL & sticky_val2) 1068 dev_err(component->dev, 1069 "ERROR: VPMON Overflow Interrupt\n"); 1070 1071 return IRQ_HANDLED; 1072 } 1073 1074 static const char * const cs35l33_core_supplies[] = { 1075 "VA", 1076 "VP", 1077 }; 1078 1079 static int cs35l33_of_get_pdata(struct device *dev, 1080 struct cs35l33_private *cs35l33) 1081 { 1082 struct device_node *np = dev->of_node; 1083 struct cs35l33_pdata *pdata = &cs35l33->pdata; 1084 u32 val32; 1085 1086 if (!np) 1087 return 0; 1088 1089 if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) { 1090 pdata->boost_ctl = val32; 1091 pdata->amp_drv_sel = 1; 1092 } 1093 1094 if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) { 1095 pdata->ramp_rate = val32; 1096 cs35l33->enable_soft_ramp = true; 1097 } 1098 1099 if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0) 1100 pdata->boost_ipk = val32; 1101 1102 if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) { 1103 if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6)) 1104 pdata->imon_adc_scale = val32; 1105 else 1106 /* use default value */ 1107 pdata->imon_adc_scale = 0x8; 1108 } else { 1109 /* use default value */ 1110 pdata->imon_adc_scale = 0x8; 1111 } 1112 1113 cs35l33_get_hg_data(np, pdata); 1114 1115 return 0; 1116 } 1117 1118 static int cs35l33_i2c_probe(struct i2c_client *i2c_client) 1119 { 1120 struct cs35l33_private *cs35l33; 1121 struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev); 1122 int ret, devid, i; 1123 unsigned int reg; 1124 1125 cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private), 1126 GFP_KERNEL); 1127 if (!cs35l33) 1128 return -ENOMEM; 1129 1130 i2c_set_clientdata(i2c_client, cs35l33); 1131 cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap); 1132 if (IS_ERR(cs35l33->regmap)) { 1133 ret = PTR_ERR(cs35l33->regmap); 1134 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1135 return ret; 1136 } 1137 1138 regcache_cache_only(cs35l33->regmap, true); 1139 1140 for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++) 1141 cs35l33->core_supplies[i].supply 1142 = cs35l33_core_supplies[i]; 1143 cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies); 1144 1145 ret = devm_regulator_bulk_get(&i2c_client->dev, 1146 cs35l33->num_core_supplies, 1147 cs35l33->core_supplies); 1148 if (ret != 0) { 1149 dev_err(&i2c_client->dev, 1150 "Failed to request core supplies: %d\n", 1151 ret); 1152 return ret; 1153 } 1154 1155 if (pdata) { 1156 cs35l33->pdata = *pdata; 1157 } else { 1158 cs35l33_of_get_pdata(&i2c_client->dev, cs35l33); 1159 pdata = &cs35l33->pdata; 1160 } 1161 1162 ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL, 1163 cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW, 1164 "cs35l33", cs35l33); 1165 if (ret != 0) 1166 dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret); 1167 1168 /* We could issue !RST or skip it based on AMP topology */ 1169 cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, 1170 "reset-gpios", GPIOD_OUT_HIGH); 1171 if (IS_ERR(cs35l33->reset_gpio)) { 1172 dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n", 1173 __func__); 1174 return PTR_ERR(cs35l33->reset_gpio); 1175 } 1176 1177 ret = regulator_bulk_enable(cs35l33->num_core_supplies, 1178 cs35l33->core_supplies); 1179 if (ret != 0) { 1180 dev_err(&i2c_client->dev, 1181 "Failed to enable core supplies: %d\n", 1182 ret); 1183 return ret; 1184 } 1185 1186 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1); 1187 1188 msleep(CS35L33_BOOT_DELAY); 1189 regcache_cache_only(cs35l33->regmap, false); 1190 1191 /* initialize codec */ 1192 devid = cirrus_read_device_id(cs35l33->regmap, CS35L33_DEVID_AB); 1193 if (devid < 0) { 1194 ret = devid; 1195 dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); 1196 goto err_enable; 1197 } 1198 1199 if (devid != CS35L33_CHIP_ID) { 1200 dev_err(&i2c_client->dev, 1201 "CS35L33 Device ID (%X). Expected ID %X\n", 1202 devid, CS35L33_CHIP_ID); 1203 ret = -EINVAL; 1204 goto err_enable; 1205 } 1206 1207 ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®); 1208 if (ret < 0) { 1209 dev_err(&i2c_client->dev, "Get Revision ID failed\n"); 1210 goto err_enable; 1211 } 1212 1213 dev_info(&i2c_client->dev, 1214 "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF); 1215 1216 ret = regmap_register_patch(cs35l33->regmap, 1217 cs35l33_patch, ARRAY_SIZE(cs35l33_patch)); 1218 if (ret < 0) { 1219 dev_err(&i2c_client->dev, 1220 "Error in applying regmap patch: %d\n", ret); 1221 goto err_enable; 1222 } 1223 1224 /* disable mclk and tdm */ 1225 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, 1226 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM, 1227 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM); 1228 1229 pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100); 1230 pm_runtime_use_autosuspend(&i2c_client->dev); 1231 pm_runtime_set_active(&i2c_client->dev); 1232 pm_runtime_enable(&i2c_client->dev); 1233 1234 ret = devm_snd_soc_register_component(&i2c_client->dev, 1235 &soc_component_dev_cs35l33, &cs35l33_dai, 1); 1236 if (ret < 0) { 1237 dev_err(&i2c_client->dev, "%s: Register component failed\n", 1238 __func__); 1239 goto err_enable; 1240 } 1241 1242 return 0; 1243 1244 err_enable: 1245 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); 1246 1247 regulator_bulk_disable(cs35l33->num_core_supplies, 1248 cs35l33->core_supplies); 1249 1250 return ret; 1251 } 1252 1253 static void cs35l33_i2c_remove(struct i2c_client *client) 1254 { 1255 struct cs35l33_private *cs35l33 = i2c_get_clientdata(client); 1256 1257 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); 1258 1259 pm_runtime_disable(&client->dev); 1260 regulator_bulk_disable(cs35l33->num_core_supplies, 1261 cs35l33->core_supplies); 1262 } 1263 1264 static const struct of_device_id cs35l33_of_match[] = { 1265 { .compatible = "cirrus,cs35l33", }, 1266 {}, 1267 }; 1268 MODULE_DEVICE_TABLE(of, cs35l33_of_match); 1269 1270 static const struct i2c_device_id cs35l33_id[] = { 1271 {"cs35l33", 0}, 1272 {} 1273 }; 1274 1275 MODULE_DEVICE_TABLE(i2c, cs35l33_id); 1276 1277 static struct i2c_driver cs35l33_i2c_driver = { 1278 .driver = { 1279 .name = "cs35l33", 1280 .pm = &cs35l33_pm_ops, 1281 .of_match_table = cs35l33_of_match, 1282 1283 }, 1284 .id_table = cs35l33_id, 1285 .probe = cs35l33_i2c_probe, 1286 .remove = cs35l33_i2c_remove, 1287 1288 }; 1289 module_i2c_driver(cs35l33_i2c_driver); 1290 1291 MODULE_DESCRIPTION("ASoC CS35L33 driver"); 1292 MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>"); 1293 MODULE_LICENSE("GPL"); 1294