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