1 /* 2 * cs42l42.c -- CS42L42 ALSA SoC audio driver 3 * 4 * Copyright 2016 Cirrus Logic, Inc. 5 * 6 * Author: James Schulman <james.schulman@cirrus.com> 7 * Author: Brian Austin <brian.austin@cirrus.com> 8 * Author: Michael White <michael.white@cirrus.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 * 14 */ 15 16 #include <linux/module.h> 17 #include <linux/moduleparam.h> 18 #include <linux/version.h> 19 #include <linux/kernel.h> 20 #include <linux/init.h> 21 #include <linux/delay.h> 22 #include <linux/i2c.h> 23 #include <linux/gpio.h> 24 #include <linux/regmap.h> 25 #include <linux/slab.h> 26 #include <linux/platform_device.h> 27 #include <linux/regulator/consumer.h> 28 #include <linux/gpio/consumer.h> 29 #include <linux/of.h> 30 #include <linux/of_gpio.h> 31 #include <linux/of_device.h> 32 #include <sound/core.h> 33 #include <sound/pcm.h> 34 #include <sound/pcm_params.h> 35 #include <sound/soc.h> 36 #include <sound/soc-dapm.h> 37 #include <sound/initval.h> 38 #include <sound/tlv.h> 39 #include <dt-bindings/sound/cs42l42.h> 40 41 #include "cs42l42.h" 42 43 static const struct reg_default cs42l42_reg_defaults[] = { 44 { CS42L42_FRZ_CTL, 0x00 }, 45 { CS42L42_SRC_CTL, 0x10 }, 46 { CS42L42_MCLK_STATUS, 0x02 }, 47 { CS42L42_MCLK_CTL, 0x02 }, 48 { CS42L42_SFTRAMP_RATE, 0xA4 }, 49 { CS42L42_I2C_DEBOUNCE, 0x88 }, 50 { CS42L42_I2C_STRETCH, 0x03 }, 51 { CS42L42_I2C_TIMEOUT, 0xB7 }, 52 { CS42L42_PWR_CTL1, 0xFF }, 53 { CS42L42_PWR_CTL2, 0x84 }, 54 { CS42L42_PWR_CTL3, 0x20 }, 55 { CS42L42_RSENSE_CTL1, 0x40 }, 56 { CS42L42_RSENSE_CTL2, 0x00 }, 57 { CS42L42_OSC_SWITCH, 0x00 }, 58 { CS42L42_OSC_SWITCH_STATUS, 0x05 }, 59 { CS42L42_RSENSE_CTL3, 0x1B }, 60 { CS42L42_TSENSE_CTL, 0x1B }, 61 { CS42L42_TSRS_INT_DISABLE, 0x00 }, 62 { CS42L42_TRSENSE_STATUS, 0x00 }, 63 { CS42L42_HSDET_CTL1, 0x77 }, 64 { CS42L42_HSDET_CTL2, 0x00 }, 65 { CS42L42_HS_SWITCH_CTL, 0xF3 }, 66 { CS42L42_HS_DET_STATUS, 0x00 }, 67 { CS42L42_HS_CLAMP_DISABLE, 0x00 }, 68 { CS42L42_MCLK_SRC_SEL, 0x00 }, 69 { CS42L42_SPDIF_CLK_CFG, 0x00 }, 70 { CS42L42_FSYNC_PW_LOWER, 0x00 }, 71 { CS42L42_FSYNC_PW_UPPER, 0x00 }, 72 { CS42L42_FSYNC_P_LOWER, 0xF9 }, 73 { CS42L42_FSYNC_P_UPPER, 0x00 }, 74 { CS42L42_ASP_CLK_CFG, 0x00 }, 75 { CS42L42_ASP_FRM_CFG, 0x10 }, 76 { CS42L42_FS_RATE_EN, 0x00 }, 77 { CS42L42_IN_ASRC_CLK, 0x00 }, 78 { CS42L42_OUT_ASRC_CLK, 0x00 }, 79 { CS42L42_PLL_DIV_CFG1, 0x00 }, 80 { CS42L42_ADC_OVFL_STATUS, 0x00 }, 81 { CS42L42_MIXER_STATUS, 0x00 }, 82 { CS42L42_SRC_STATUS, 0x00 }, 83 { CS42L42_ASP_RX_STATUS, 0x00 }, 84 { CS42L42_ASP_TX_STATUS, 0x00 }, 85 { CS42L42_CODEC_STATUS, 0x00 }, 86 { CS42L42_DET_INT_STATUS1, 0x00 }, 87 { CS42L42_DET_INT_STATUS2, 0x00 }, 88 { CS42L42_SRCPL_INT_STATUS, 0x00 }, 89 { CS42L42_VPMON_STATUS, 0x00 }, 90 { CS42L42_PLL_LOCK_STATUS, 0x00 }, 91 { CS42L42_TSRS_PLUG_STATUS, 0x00 }, 92 { CS42L42_ADC_OVFL_INT_MASK, 0x01 }, 93 { CS42L42_MIXER_INT_MASK, 0x0F }, 94 { CS42L42_SRC_INT_MASK, 0x0F }, 95 { CS42L42_ASP_RX_INT_MASK, 0x1F }, 96 { CS42L42_ASP_TX_INT_MASK, 0x0F }, 97 { CS42L42_CODEC_INT_MASK, 0x03 }, 98 { CS42L42_SRCPL_INT_MASK, 0xFF }, 99 { CS42L42_VPMON_INT_MASK, 0x01 }, 100 { CS42L42_PLL_LOCK_INT_MASK, 0x01 }, 101 { CS42L42_TSRS_PLUG_INT_MASK, 0x0F }, 102 { CS42L42_PLL_CTL1, 0x00 }, 103 { CS42L42_PLL_DIV_FRAC0, 0x00 }, 104 { CS42L42_PLL_DIV_FRAC1, 0x00 }, 105 { CS42L42_PLL_DIV_FRAC2, 0x00 }, 106 { CS42L42_PLL_DIV_INT, 0x40 }, 107 { CS42L42_PLL_CTL3, 0x10 }, 108 { CS42L42_PLL_CAL_RATIO, 0x80 }, 109 { CS42L42_PLL_CTL4, 0x03 }, 110 { CS42L42_LOAD_DET_RCSTAT, 0x00 }, 111 { CS42L42_LOAD_DET_DONE, 0x00 }, 112 { CS42L42_LOAD_DET_EN, 0x00 }, 113 { CS42L42_HSBIAS_SC_AUTOCTL, 0x03 }, 114 { CS42L42_WAKE_CTL, 0xC0 }, 115 { CS42L42_ADC_DISABLE_MUTE, 0x00 }, 116 { CS42L42_TIPSENSE_CTL, 0x02 }, 117 { CS42L42_MISC_DET_CTL, 0x03 }, 118 { CS42L42_MIC_DET_CTL1, 0x1F }, 119 { CS42L42_MIC_DET_CTL2, 0x2F }, 120 { CS42L42_DET_STATUS1, 0x00 }, 121 { CS42L42_DET_STATUS2, 0x00 }, 122 { CS42L42_DET_INT1_MASK, 0xE0 }, 123 { CS42L42_DET_INT2_MASK, 0xFF }, 124 { CS42L42_HS_BIAS_CTL, 0xC2 }, 125 { CS42L42_ADC_CTL, 0x00 }, 126 { CS42L42_ADC_VOLUME, 0x00 }, 127 { CS42L42_ADC_WNF_HPF_CTL, 0x71 }, 128 { CS42L42_DAC_CTL1, 0x00 }, 129 { CS42L42_DAC_CTL2, 0x02 }, 130 { CS42L42_HP_CTL, 0x0D }, 131 { CS42L42_CLASSH_CTL, 0x07 }, 132 { CS42L42_MIXER_CHA_VOL, 0x3F }, 133 { CS42L42_MIXER_ADC_VOL, 0x3F }, 134 { CS42L42_MIXER_CHB_VOL, 0x3F }, 135 { CS42L42_EQ_COEF_IN0, 0x22 }, 136 { CS42L42_EQ_COEF_IN1, 0x00 }, 137 { CS42L42_EQ_COEF_IN2, 0x00 }, 138 { CS42L42_EQ_COEF_IN3, 0x00 }, 139 { CS42L42_EQ_COEF_RW, 0x00 }, 140 { CS42L42_EQ_COEF_OUT0, 0x00 }, 141 { CS42L42_EQ_COEF_OUT1, 0x00 }, 142 { CS42L42_EQ_COEF_OUT2, 0x00 }, 143 { CS42L42_EQ_COEF_OUT3, 0x00 }, 144 { CS42L42_EQ_INIT_STAT, 0x00 }, 145 { CS42L42_EQ_START_FILT, 0x00 }, 146 { CS42L42_EQ_MUTE_CTL, 0x00 }, 147 { CS42L42_SP_RX_CH_SEL, 0x04 }, 148 { CS42L42_SP_RX_ISOC_CTL, 0x04 }, 149 { CS42L42_SP_RX_FS, 0x8C }, 150 { CS42l42_SPDIF_CH_SEL, 0x0E }, 151 { CS42L42_SP_TX_ISOC_CTL, 0x04 }, 152 { CS42L42_SP_TX_FS, 0xCC }, 153 { CS42L42_SPDIF_SW_CTL1, 0x3F }, 154 { CS42L42_SRC_SDIN_FS, 0x40 }, 155 { CS42L42_SRC_SDOUT_FS, 0x40 }, 156 { CS42L42_SPDIF_CTL1, 0x01 }, 157 { CS42L42_SPDIF_CTL2, 0x00 }, 158 { CS42L42_SPDIF_CTL3, 0x00 }, 159 { CS42L42_SPDIF_CTL4, 0x42 }, 160 { CS42L42_ASP_TX_SZ_EN, 0x00 }, 161 { CS42L42_ASP_TX_CH_EN, 0x00 }, 162 { CS42L42_ASP_TX_CH_AP_RES, 0x0F }, 163 { CS42L42_ASP_TX_CH1_BIT_MSB, 0x00 }, 164 { CS42L42_ASP_TX_CH1_BIT_LSB, 0x00 }, 165 { CS42L42_ASP_TX_HIZ_DLY_CFG, 0x00 }, 166 { CS42L42_ASP_TX_CH2_BIT_MSB, 0x00 }, 167 { CS42L42_ASP_TX_CH2_BIT_LSB, 0x00 }, 168 { CS42L42_ASP_RX_DAI0_EN, 0x00 }, 169 { CS42L42_ASP_RX_DAI0_CH1_AP_RES, 0x03 }, 170 { CS42L42_ASP_RX_DAI0_CH1_BIT_MSB, 0x00 }, 171 { CS42L42_ASP_RX_DAI0_CH1_BIT_LSB, 0x00 }, 172 { CS42L42_ASP_RX_DAI0_CH2_AP_RES, 0x03 }, 173 { CS42L42_ASP_RX_DAI0_CH2_BIT_MSB, 0x00 }, 174 { CS42L42_ASP_RX_DAI0_CH2_BIT_LSB, 0x00 }, 175 { CS42L42_ASP_RX_DAI0_CH3_AP_RES, 0x03 }, 176 { CS42L42_ASP_RX_DAI0_CH3_BIT_MSB, 0x00 }, 177 { CS42L42_ASP_RX_DAI0_CH3_BIT_LSB, 0x00 }, 178 { CS42L42_ASP_RX_DAI0_CH4_AP_RES, 0x03 }, 179 { CS42L42_ASP_RX_DAI0_CH4_BIT_MSB, 0x00 }, 180 { CS42L42_ASP_RX_DAI0_CH4_BIT_LSB, 0x00 }, 181 { CS42L42_ASP_RX_DAI1_CH1_AP_RES, 0x03 }, 182 { CS42L42_ASP_RX_DAI1_CH1_BIT_MSB, 0x00 }, 183 { CS42L42_ASP_RX_DAI1_CH1_BIT_LSB, 0x00 }, 184 { CS42L42_ASP_RX_DAI1_CH2_AP_RES, 0x03 }, 185 { CS42L42_ASP_RX_DAI1_CH2_BIT_MSB, 0x00 }, 186 { CS42L42_ASP_RX_DAI1_CH2_BIT_LSB, 0x00 }, 187 { CS42L42_SUB_REVID, 0x03 }, 188 }; 189 190 static bool cs42l42_readable_register(struct device *dev, unsigned int reg) 191 { 192 switch (reg) { 193 case CS42L42_PAGE_REGISTER: 194 case CS42L42_DEVID_AB: 195 case CS42L42_DEVID_CD: 196 case CS42L42_DEVID_E: 197 case CS42L42_FABID: 198 case CS42L42_REVID: 199 case CS42L42_FRZ_CTL: 200 case CS42L42_SRC_CTL: 201 case CS42L42_MCLK_STATUS: 202 case CS42L42_MCLK_CTL: 203 case CS42L42_SFTRAMP_RATE: 204 case CS42L42_I2C_DEBOUNCE: 205 case CS42L42_I2C_STRETCH: 206 case CS42L42_I2C_TIMEOUT: 207 case CS42L42_PWR_CTL1: 208 case CS42L42_PWR_CTL2: 209 case CS42L42_PWR_CTL3: 210 case CS42L42_RSENSE_CTL1: 211 case CS42L42_RSENSE_CTL2: 212 case CS42L42_OSC_SWITCH: 213 case CS42L42_OSC_SWITCH_STATUS: 214 case CS42L42_RSENSE_CTL3: 215 case CS42L42_TSENSE_CTL: 216 case CS42L42_TSRS_INT_DISABLE: 217 case CS42L42_TRSENSE_STATUS: 218 case CS42L42_HSDET_CTL1: 219 case CS42L42_HSDET_CTL2: 220 case CS42L42_HS_SWITCH_CTL: 221 case CS42L42_HS_DET_STATUS: 222 case CS42L42_HS_CLAMP_DISABLE: 223 case CS42L42_MCLK_SRC_SEL: 224 case CS42L42_SPDIF_CLK_CFG: 225 case CS42L42_FSYNC_PW_LOWER: 226 case CS42L42_FSYNC_PW_UPPER: 227 case CS42L42_FSYNC_P_LOWER: 228 case CS42L42_FSYNC_P_UPPER: 229 case CS42L42_ASP_CLK_CFG: 230 case CS42L42_ASP_FRM_CFG: 231 case CS42L42_FS_RATE_EN: 232 case CS42L42_IN_ASRC_CLK: 233 case CS42L42_OUT_ASRC_CLK: 234 case CS42L42_PLL_DIV_CFG1: 235 case CS42L42_ADC_OVFL_STATUS: 236 case CS42L42_MIXER_STATUS: 237 case CS42L42_SRC_STATUS: 238 case CS42L42_ASP_RX_STATUS: 239 case CS42L42_ASP_TX_STATUS: 240 case CS42L42_CODEC_STATUS: 241 case CS42L42_DET_INT_STATUS1: 242 case CS42L42_DET_INT_STATUS2: 243 case CS42L42_SRCPL_INT_STATUS: 244 case CS42L42_VPMON_STATUS: 245 case CS42L42_PLL_LOCK_STATUS: 246 case CS42L42_TSRS_PLUG_STATUS: 247 case CS42L42_ADC_OVFL_INT_MASK: 248 case CS42L42_MIXER_INT_MASK: 249 case CS42L42_SRC_INT_MASK: 250 case CS42L42_ASP_RX_INT_MASK: 251 case CS42L42_ASP_TX_INT_MASK: 252 case CS42L42_CODEC_INT_MASK: 253 case CS42L42_SRCPL_INT_MASK: 254 case CS42L42_VPMON_INT_MASK: 255 case CS42L42_PLL_LOCK_INT_MASK: 256 case CS42L42_TSRS_PLUG_INT_MASK: 257 case CS42L42_PLL_CTL1: 258 case CS42L42_PLL_DIV_FRAC0: 259 case CS42L42_PLL_DIV_FRAC1: 260 case CS42L42_PLL_DIV_FRAC2: 261 case CS42L42_PLL_DIV_INT: 262 case CS42L42_PLL_CTL3: 263 case CS42L42_PLL_CAL_RATIO: 264 case CS42L42_PLL_CTL4: 265 case CS42L42_LOAD_DET_RCSTAT: 266 case CS42L42_LOAD_DET_DONE: 267 case CS42L42_LOAD_DET_EN: 268 case CS42L42_HSBIAS_SC_AUTOCTL: 269 case CS42L42_WAKE_CTL: 270 case CS42L42_ADC_DISABLE_MUTE: 271 case CS42L42_TIPSENSE_CTL: 272 case CS42L42_MISC_DET_CTL: 273 case CS42L42_MIC_DET_CTL1: 274 case CS42L42_MIC_DET_CTL2: 275 case CS42L42_DET_STATUS1: 276 case CS42L42_DET_STATUS2: 277 case CS42L42_DET_INT1_MASK: 278 case CS42L42_DET_INT2_MASK: 279 case CS42L42_HS_BIAS_CTL: 280 case CS42L42_ADC_CTL: 281 case CS42L42_ADC_VOLUME: 282 case CS42L42_ADC_WNF_HPF_CTL: 283 case CS42L42_DAC_CTL1: 284 case CS42L42_DAC_CTL2: 285 case CS42L42_HP_CTL: 286 case CS42L42_CLASSH_CTL: 287 case CS42L42_MIXER_CHA_VOL: 288 case CS42L42_MIXER_ADC_VOL: 289 case CS42L42_MIXER_CHB_VOL: 290 case CS42L42_EQ_COEF_IN0: 291 case CS42L42_EQ_COEF_IN1: 292 case CS42L42_EQ_COEF_IN2: 293 case CS42L42_EQ_COEF_IN3: 294 case CS42L42_EQ_COEF_RW: 295 case CS42L42_EQ_COEF_OUT0: 296 case CS42L42_EQ_COEF_OUT1: 297 case CS42L42_EQ_COEF_OUT2: 298 case CS42L42_EQ_COEF_OUT3: 299 case CS42L42_EQ_INIT_STAT: 300 case CS42L42_EQ_START_FILT: 301 case CS42L42_EQ_MUTE_CTL: 302 case CS42L42_SP_RX_CH_SEL: 303 case CS42L42_SP_RX_ISOC_CTL: 304 case CS42L42_SP_RX_FS: 305 case CS42l42_SPDIF_CH_SEL: 306 case CS42L42_SP_TX_ISOC_CTL: 307 case CS42L42_SP_TX_FS: 308 case CS42L42_SPDIF_SW_CTL1: 309 case CS42L42_SRC_SDIN_FS: 310 case CS42L42_SRC_SDOUT_FS: 311 case CS42L42_SPDIF_CTL1: 312 case CS42L42_SPDIF_CTL2: 313 case CS42L42_SPDIF_CTL3: 314 case CS42L42_SPDIF_CTL4: 315 case CS42L42_ASP_TX_SZ_EN: 316 case CS42L42_ASP_TX_CH_EN: 317 case CS42L42_ASP_TX_CH_AP_RES: 318 case CS42L42_ASP_TX_CH1_BIT_MSB: 319 case CS42L42_ASP_TX_CH1_BIT_LSB: 320 case CS42L42_ASP_TX_HIZ_DLY_CFG: 321 case CS42L42_ASP_TX_CH2_BIT_MSB: 322 case CS42L42_ASP_TX_CH2_BIT_LSB: 323 case CS42L42_ASP_RX_DAI0_EN: 324 case CS42L42_ASP_RX_DAI0_CH1_AP_RES: 325 case CS42L42_ASP_RX_DAI0_CH1_BIT_MSB: 326 case CS42L42_ASP_RX_DAI0_CH1_BIT_LSB: 327 case CS42L42_ASP_RX_DAI0_CH2_AP_RES: 328 case CS42L42_ASP_RX_DAI0_CH2_BIT_MSB: 329 case CS42L42_ASP_RX_DAI0_CH2_BIT_LSB: 330 case CS42L42_ASP_RX_DAI0_CH3_AP_RES: 331 case CS42L42_ASP_RX_DAI0_CH3_BIT_MSB: 332 case CS42L42_ASP_RX_DAI0_CH3_BIT_LSB: 333 case CS42L42_ASP_RX_DAI0_CH4_AP_RES: 334 case CS42L42_ASP_RX_DAI0_CH4_BIT_MSB: 335 case CS42L42_ASP_RX_DAI0_CH4_BIT_LSB: 336 case CS42L42_ASP_RX_DAI1_CH1_AP_RES: 337 case CS42L42_ASP_RX_DAI1_CH1_BIT_MSB: 338 case CS42L42_ASP_RX_DAI1_CH1_BIT_LSB: 339 case CS42L42_ASP_RX_DAI1_CH2_AP_RES: 340 case CS42L42_ASP_RX_DAI1_CH2_BIT_MSB: 341 case CS42L42_ASP_RX_DAI1_CH2_BIT_LSB: 342 case CS42L42_SUB_REVID: 343 return true; 344 default: 345 return false; 346 } 347 } 348 349 static bool cs42l42_volatile_register(struct device *dev, unsigned int reg) 350 { 351 switch (reg) { 352 case CS42L42_DEVID_AB: 353 case CS42L42_DEVID_CD: 354 case CS42L42_DEVID_E: 355 case CS42L42_MCLK_STATUS: 356 case CS42L42_TRSENSE_STATUS: 357 case CS42L42_HS_DET_STATUS: 358 case CS42L42_ADC_OVFL_STATUS: 359 case CS42L42_MIXER_STATUS: 360 case CS42L42_SRC_STATUS: 361 case CS42L42_ASP_RX_STATUS: 362 case CS42L42_ASP_TX_STATUS: 363 case CS42L42_CODEC_STATUS: 364 case CS42L42_DET_INT_STATUS1: 365 case CS42L42_DET_INT_STATUS2: 366 case CS42L42_SRCPL_INT_STATUS: 367 case CS42L42_VPMON_STATUS: 368 case CS42L42_PLL_LOCK_STATUS: 369 case CS42L42_TSRS_PLUG_STATUS: 370 case CS42L42_LOAD_DET_RCSTAT: 371 case CS42L42_LOAD_DET_DONE: 372 case CS42L42_DET_STATUS1: 373 case CS42L42_DET_STATUS2: 374 return true; 375 default: 376 return false; 377 } 378 } 379 380 static const struct regmap_range_cfg cs42l42_page_range = { 381 .name = "Pages", 382 .range_min = 0, 383 .range_max = CS42L42_MAX_REGISTER, 384 .selector_reg = CS42L42_PAGE_REGISTER, 385 .selector_mask = 0xff, 386 .selector_shift = 0, 387 .window_start = 0, 388 .window_len = 256, 389 }; 390 391 static const struct regmap_config cs42l42_regmap = { 392 .reg_bits = 8, 393 .val_bits = 8, 394 395 .readable_reg = cs42l42_readable_register, 396 .volatile_reg = cs42l42_volatile_register, 397 398 .ranges = &cs42l42_page_range, 399 .num_ranges = 1, 400 401 .max_register = CS42L42_MAX_REGISTER, 402 .reg_defaults = cs42l42_reg_defaults, 403 .num_reg_defaults = ARRAY_SIZE(cs42l42_reg_defaults), 404 .cache_type = REGCACHE_RBTREE, 405 }; 406 407 static DECLARE_TLV_DB_SCALE(adc_tlv, -9600, 100, false); 408 static DECLARE_TLV_DB_SCALE(mixer_tlv, -6200, 100, false); 409 410 static const char * const cs42l42_hpf_freq_text[] = { 411 "1.86Hz", "120Hz", "235Hz", "466Hz" 412 }; 413 414 static SOC_ENUM_SINGLE_DECL(cs42l42_hpf_freq_enum, CS42L42_ADC_WNF_HPF_CTL, 415 CS42L42_ADC_HPF_CF_SHIFT, 416 cs42l42_hpf_freq_text); 417 418 static const char * const cs42l42_wnf3_freq_text[] = { 419 "160Hz", "180Hz", "200Hz", "220Hz", 420 "240Hz", "260Hz", "280Hz", "300Hz" 421 }; 422 423 static SOC_ENUM_SINGLE_DECL(cs42l42_wnf3_freq_enum, CS42L42_ADC_WNF_HPF_CTL, 424 CS42L42_ADC_WNF_CF_SHIFT, 425 cs42l42_wnf3_freq_text); 426 427 static const char * const cs42l42_wnf05_freq_text[] = { 428 "280Hz", "315Hz", "350Hz", "385Hz", 429 "420Hz", "455Hz", "490Hz", "525Hz" 430 }; 431 432 static SOC_ENUM_SINGLE_DECL(cs42l42_wnf05_freq_enum, CS42L42_ADC_WNF_HPF_CTL, 433 CS42L42_ADC_WNF_CF_SHIFT, 434 cs42l42_wnf05_freq_text); 435 436 static const struct snd_kcontrol_new cs42l42_snd_controls[] = { 437 /* ADC Volume and Filter Controls */ 438 SOC_SINGLE("ADC Notch Switch", CS42L42_ADC_CTL, 439 CS42L42_ADC_NOTCH_DIS_SHIFT, true, false), 440 SOC_SINGLE("ADC Weak Force Switch", CS42L42_ADC_CTL, 441 CS42L42_ADC_FORCE_WEAK_VCM_SHIFT, true, false), 442 SOC_SINGLE("ADC Invert Switch", CS42L42_ADC_CTL, 443 CS42L42_ADC_INV_SHIFT, true, false), 444 SOC_SINGLE("ADC Boost Switch", CS42L42_ADC_CTL, 445 CS42L42_ADC_DIG_BOOST_SHIFT, true, false), 446 SOC_SINGLE_SX_TLV("ADC Volume", CS42L42_ADC_VOLUME, 447 CS42L42_ADC_VOL_SHIFT, 0xA0, 0x6C, adc_tlv), 448 SOC_SINGLE("ADC WNF Switch", CS42L42_ADC_WNF_HPF_CTL, 449 CS42L42_ADC_WNF_EN_SHIFT, true, false), 450 SOC_SINGLE("ADC HPF Switch", CS42L42_ADC_WNF_HPF_CTL, 451 CS42L42_ADC_HPF_EN_SHIFT, true, false), 452 SOC_ENUM("HPF Corner Freq", cs42l42_hpf_freq_enum), 453 SOC_ENUM("WNF 3dB Freq", cs42l42_wnf3_freq_enum), 454 SOC_ENUM("WNF 05dB Freq", cs42l42_wnf05_freq_enum), 455 456 /* DAC Volume and Filter Controls */ 457 SOC_SINGLE("DACA Invert Switch", CS42L42_DAC_CTL1, 458 CS42L42_DACA_INV_SHIFT, true, false), 459 SOC_SINGLE("DACB Invert Switch", CS42L42_DAC_CTL1, 460 CS42L42_DACB_INV_SHIFT, true, false), 461 SOC_SINGLE("DAC HPF Switch", CS42L42_DAC_CTL2, 462 CS42L42_DAC_HPF_EN_SHIFT, true, false), 463 SOC_DOUBLE_R_TLV("Mixer Volume", CS42L42_MIXER_CHA_VOL, 464 CS42L42_MIXER_CHB_VOL, CS42L42_MIXER_CH_VOL_SHIFT, 465 0x3e, 1, mixer_tlv) 466 }; 467 468 static int cs42l42_hpdrv_evt(struct snd_soc_dapm_widget *w, 469 struct snd_kcontrol *kcontrol, int event) 470 { 471 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 472 473 if (event & SND_SOC_DAPM_POST_PMU) { 474 /* Enable the channels */ 475 snd_soc_update_bits(codec, CS42L42_ASP_RX_DAI0_EN, 476 CS42L42_ASP_RX0_CH_EN_MASK, 477 (CS42L42_ASP_RX0_CH1_EN | 478 CS42L42_ASP_RX0_CH2_EN) << 479 CS42L42_ASP_RX0_CH_EN_SHIFT); 480 481 /* Power up */ 482 snd_soc_update_bits(codec, CS42L42_PWR_CTL1, 483 CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | 484 CS42L42_HP_PDN_MASK, 0); 485 } else if (event & SND_SOC_DAPM_PRE_PMD) { 486 /* Disable the channels */ 487 snd_soc_update_bits(codec, CS42L42_ASP_RX_DAI0_EN, 488 CS42L42_ASP_RX0_CH_EN_MASK, 0); 489 490 /* Power down */ 491 snd_soc_update_bits(codec, CS42L42_PWR_CTL1, 492 CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | 493 CS42L42_HP_PDN_MASK, 494 CS42L42_ASP_DAI_PDN_MASK | CS42L42_MIXER_PDN_MASK | 495 CS42L42_HP_PDN_MASK); 496 } else { 497 dev_err(codec->dev, "Invalid event 0x%x\n", event); 498 } 499 return 0; 500 } 501 502 static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { 503 SND_SOC_DAPM_OUTPUT("HP"), 504 SND_SOC_DAPM_AIF_IN("SDIN", NULL, 0, CS42L42_ASP_CLK_CFG, 505 CS42L42_ASP_SCLK_EN_SHIFT, false), 506 SND_SOC_DAPM_OUT_DRV_E("HPDRV", SND_SOC_NOPM, 0, 507 0, NULL, 0, cs42l42_hpdrv_evt, 508 SND_SOC_DAPM_POST_PMU | 509 SND_SOC_DAPM_PRE_PMD) 510 }; 511 512 static const struct snd_soc_dapm_route cs42l42_audio_map[] = { 513 {"SDIN", NULL, "Playback"}, 514 {"HPDRV", NULL, "SDIN"}, 515 {"HP", NULL, "HPDRV"} 516 }; 517 518 static int cs42l42_set_bias_level(struct snd_soc_codec *codec, 519 enum snd_soc_bias_level level) 520 { 521 struct cs42l42_private *cs42l42 = snd_soc_codec_get_drvdata(codec); 522 int ret; 523 524 switch (level) { 525 case SND_SOC_BIAS_ON: 526 break; 527 case SND_SOC_BIAS_PREPARE: 528 break; 529 case SND_SOC_BIAS_STANDBY: 530 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 531 regcache_cache_only(cs42l42->regmap, false); 532 regcache_sync(cs42l42->regmap); 533 ret = regulator_bulk_enable( 534 ARRAY_SIZE(cs42l42->supplies), 535 cs42l42->supplies); 536 if (ret != 0) { 537 dev_err(codec->dev, 538 "Failed to enable regulators: %d\n", 539 ret); 540 return ret; 541 } 542 } 543 break; 544 case SND_SOC_BIAS_OFF: 545 546 regcache_cache_only(cs42l42->regmap, true); 547 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), 548 cs42l42->supplies); 549 break; 550 } 551 552 return 0; 553 } 554 555 static int cs42l42_codec_probe(struct snd_soc_codec *codec) 556 { 557 struct cs42l42_private *cs42l42 = 558 (struct cs42l42_private *)snd_soc_codec_get_drvdata(codec); 559 560 cs42l42->codec = codec; 561 562 return 0; 563 } 564 565 static const struct snd_soc_codec_driver soc_codec_dev_cs42l42 = { 566 .probe = cs42l42_codec_probe, 567 .set_bias_level = cs42l42_set_bias_level, 568 .ignore_pmdown_time = true, 569 570 .component_driver = { 571 .dapm_widgets = cs42l42_dapm_widgets, 572 .num_dapm_widgets = ARRAY_SIZE(cs42l42_dapm_widgets), 573 .dapm_routes = cs42l42_audio_map, 574 .num_dapm_routes = ARRAY_SIZE(cs42l42_audio_map), 575 576 .controls = cs42l42_snd_controls, 577 .num_controls = ARRAY_SIZE(cs42l42_snd_controls), 578 }, 579 }; 580 581 struct cs42l42_pll_params { 582 u32 sclk; 583 u8 mclk_div; 584 u8 mclk_src_sel; 585 u8 sclk_prediv; 586 u8 pll_div_int; 587 u32 pll_div_frac; 588 u8 pll_mode; 589 u8 pll_divout; 590 u32 mclk_int; 591 u8 pll_cal_ratio; 592 }; 593 594 /* 595 * Common PLL Settings for given SCLK 596 * Table 4-5 from the Datasheet 597 */ 598 static const struct cs42l42_pll_params pll_ratio_table[] = { 599 { 1536000, 0, 1, 0x00, 0x7D, 0x000000, 0x03, 0x10, 12000000, 125 }, 600 { 2822400, 0, 1, 0x00, 0x40, 0x000000, 0x03, 0x10, 11289600, 128 }, 601 { 3000000, 0, 1, 0x00, 0x40, 0x000000, 0x03, 0x10, 12000000, 128 }, 602 { 3072000, 0, 1, 0x00, 0x3E, 0x800000, 0x03, 0x10, 12000000, 125 }, 603 { 4000000, 0, 1, 0x00, 0x30, 0x800000, 0x03, 0x10, 12000000, 96 }, 604 { 4096000, 0, 1, 0x00, 0x2E, 0xE00000, 0x03, 0x10, 12000000, 94 }, 605 { 5644800, 0, 1, 0x01, 0x40, 0x000000, 0x03, 0x10, 11289600, 128 }, 606 { 6000000, 0, 1, 0x01, 0x40, 0x000000, 0x03, 0x10, 12000000, 128 }, 607 { 6144000, 0, 1, 0x01, 0x3E, 0x800000, 0x03, 0x10, 12000000, 125 }, 608 { 11289600, 0, 0, 0, 0, 0, 0, 0, 11289600, 0 }, 609 { 12000000, 0, 0, 0, 0, 0, 0, 0, 12000000, 0 }, 610 { 12288000, 0, 0, 0, 0, 0, 0, 0, 12288000, 0 }, 611 { 22579200, 1, 0, 0, 0, 0, 0, 0, 22579200, 0 }, 612 { 24000000, 1, 0, 0, 0, 0, 0, 0, 24000000, 0 }, 613 { 24576000, 1, 0, 0, 0, 0, 0, 0, 24576000, 0 } 614 }; 615 616 static int cs42l42_pll_config(struct snd_soc_codec *codec) 617 { 618 struct cs42l42_private *cs42l42 = snd_soc_codec_get_drvdata(codec); 619 int i; 620 u32 fsync; 621 622 for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) { 623 if (pll_ratio_table[i].sclk == cs42l42->sclk) { 624 /* Configure the internal sample rate */ 625 snd_soc_update_bits(codec, CS42L42_MCLK_CTL, 626 CS42L42_INTERNAL_FS_MASK, 627 ((pll_ratio_table[i].mclk_int != 628 12000000) && 629 (pll_ratio_table[i].mclk_int != 630 24000000)) << 631 CS42L42_INTERNAL_FS_SHIFT); 632 /* Set the MCLK src (PLL or SCLK) and the divide 633 * ratio 634 */ 635 snd_soc_update_bits(codec, CS42L42_MCLK_SRC_SEL, 636 CS42L42_MCLK_SRC_SEL_MASK | 637 CS42L42_MCLKDIV_MASK, 638 (pll_ratio_table[i].mclk_src_sel 639 << CS42L42_MCLK_SRC_SEL_SHIFT) | 640 (pll_ratio_table[i].mclk_div << 641 CS42L42_MCLKDIV_SHIFT)); 642 /* Set up the LRCLK */ 643 fsync = cs42l42->sclk / cs42l42->srate; 644 if (((fsync * cs42l42->srate) != cs42l42->sclk) 645 || ((fsync % 2) != 0)) { 646 dev_err(codec->dev, 647 "Unsupported sclk %d/sample rate %d\n", 648 cs42l42->sclk, 649 cs42l42->srate); 650 return -EINVAL; 651 } 652 /* Set the LRCLK period */ 653 snd_soc_update_bits(codec, 654 CS42L42_FSYNC_P_LOWER, 655 CS42L42_FSYNC_PERIOD_MASK, 656 CS42L42_FRAC0_VAL(fsync - 1) << 657 CS42L42_FSYNC_PERIOD_SHIFT); 658 snd_soc_update_bits(codec, 659 CS42L42_FSYNC_P_UPPER, 660 CS42L42_FSYNC_PERIOD_MASK, 661 CS42L42_FRAC1_VAL(fsync - 1) << 662 CS42L42_FSYNC_PERIOD_SHIFT); 663 /* Set the LRCLK to 50% duty cycle */ 664 fsync = fsync / 2; 665 snd_soc_update_bits(codec, 666 CS42L42_FSYNC_PW_LOWER, 667 CS42L42_FSYNC_PULSE_WIDTH_MASK, 668 CS42L42_FRAC0_VAL(fsync - 1) << 669 CS42L42_FSYNC_PULSE_WIDTH_SHIFT); 670 snd_soc_update_bits(codec, 671 CS42L42_FSYNC_PW_UPPER, 672 CS42L42_FSYNC_PULSE_WIDTH_MASK, 673 CS42L42_FRAC1_VAL(fsync - 1) << 674 CS42L42_FSYNC_PULSE_WIDTH_SHIFT); 675 snd_soc_update_bits(codec, 676 CS42L42_ASP_FRM_CFG, 677 CS42L42_ASP_5050_MASK, 678 CS42L42_ASP_5050_MASK); 679 /* Set the frame delay to 1.0 SCLK clocks */ 680 snd_soc_update_bits(codec, CS42L42_ASP_FRM_CFG, 681 CS42L42_ASP_FSD_MASK, 682 CS42L42_ASP_FSD_1_0 << 683 CS42L42_ASP_FSD_SHIFT); 684 /* Set the sample rates (96k or lower) */ 685 snd_soc_update_bits(codec, CS42L42_FS_RATE_EN, 686 CS42L42_FS_EN_MASK, 687 (CS42L42_FS_EN_IASRC_96K | 688 CS42L42_FS_EN_OASRC_96K) << 689 CS42L42_FS_EN_SHIFT); 690 /* Set the input/output internal MCLK clock ~12 MHz */ 691 snd_soc_update_bits(codec, CS42L42_IN_ASRC_CLK, 692 CS42L42_CLK_IASRC_SEL_MASK, 693 CS42L42_CLK_IASRC_SEL_12 << 694 CS42L42_CLK_IASRC_SEL_SHIFT); 695 snd_soc_update_bits(codec, 696 CS42L42_OUT_ASRC_CLK, 697 CS42L42_CLK_OASRC_SEL_MASK, 698 CS42L42_CLK_OASRC_SEL_12 << 699 CS42L42_CLK_OASRC_SEL_SHIFT); 700 /* channel 1 on low LRCLK, 32 bit */ 701 snd_soc_update_bits(codec, 702 CS42L42_ASP_RX_DAI0_CH1_AP_RES, 703 CS42L42_ASP_RX_CH_AP_MASK | 704 CS42L42_ASP_RX_CH_RES_MASK, 705 (CS42L42_ASP_RX_CH_AP_LOW << 706 CS42L42_ASP_RX_CH_AP_SHIFT) | 707 (CS42L42_ASP_RX_CH_RES_32 << 708 CS42L42_ASP_RX_CH_RES_SHIFT)); 709 /* Channel 2 on high LRCLK, 32 bit */ 710 snd_soc_update_bits(codec, 711 CS42L42_ASP_RX_DAI0_CH2_AP_RES, 712 CS42L42_ASP_RX_CH_AP_MASK | 713 CS42L42_ASP_RX_CH_RES_MASK, 714 (CS42L42_ASP_RX_CH_AP_HI << 715 CS42L42_ASP_RX_CH_AP_SHIFT) | 716 (CS42L42_ASP_RX_CH_RES_32 << 717 CS42L42_ASP_RX_CH_RES_SHIFT)); 718 if (pll_ratio_table[i].mclk_src_sel == 0) { 719 /* Pass the clock straight through */ 720 snd_soc_update_bits(codec, 721 CS42L42_PLL_CTL1, 722 CS42L42_PLL_START_MASK, 0); 723 } else { 724 /* Configure PLL per table 4-5 */ 725 snd_soc_update_bits(codec, 726 CS42L42_PLL_DIV_CFG1, 727 CS42L42_SCLK_PREDIV_MASK, 728 pll_ratio_table[i].sclk_prediv 729 << CS42L42_SCLK_PREDIV_SHIFT); 730 snd_soc_update_bits(codec, 731 CS42L42_PLL_DIV_INT, 732 CS42L42_PLL_DIV_INT_MASK, 733 pll_ratio_table[i].pll_div_int 734 << CS42L42_PLL_DIV_INT_SHIFT); 735 snd_soc_update_bits(codec, 736 CS42L42_PLL_DIV_FRAC0, 737 CS42L42_PLL_DIV_FRAC_MASK, 738 CS42L42_FRAC0_VAL( 739 pll_ratio_table[i].pll_div_frac) 740 << CS42L42_PLL_DIV_FRAC_SHIFT); 741 snd_soc_update_bits(codec, 742 CS42L42_PLL_DIV_FRAC1, 743 CS42L42_PLL_DIV_FRAC_MASK, 744 CS42L42_FRAC1_VAL( 745 pll_ratio_table[i].pll_div_frac) 746 << CS42L42_PLL_DIV_FRAC_SHIFT); 747 snd_soc_update_bits(codec, 748 CS42L42_PLL_DIV_FRAC2, 749 CS42L42_PLL_DIV_FRAC_MASK, 750 CS42L42_FRAC2_VAL( 751 pll_ratio_table[i].pll_div_frac) 752 << CS42L42_PLL_DIV_FRAC_SHIFT); 753 snd_soc_update_bits(codec, 754 CS42L42_PLL_CTL4, 755 CS42L42_PLL_MODE_MASK, 756 pll_ratio_table[i].pll_mode 757 << CS42L42_PLL_MODE_SHIFT); 758 snd_soc_update_bits(codec, 759 CS42L42_PLL_CTL3, 760 CS42L42_PLL_DIVOUT_MASK, 761 pll_ratio_table[i].pll_divout 762 << CS42L42_PLL_DIVOUT_SHIFT); 763 snd_soc_update_bits(codec, 764 CS42L42_PLL_CAL_RATIO, 765 CS42L42_PLL_CAL_RATIO_MASK, 766 pll_ratio_table[i].pll_cal_ratio 767 << CS42L42_PLL_CAL_RATIO_SHIFT); 768 } 769 return 0; 770 } 771 } 772 773 return -EINVAL; 774 } 775 776 static int cs42l42_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 777 { 778 struct snd_soc_codec *codec = codec_dai->codec; 779 u32 asp_cfg_val = 0; 780 781 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 782 case SND_SOC_DAIFMT_CBS_CFM: 783 asp_cfg_val |= CS42L42_ASP_MASTER_MODE << 784 CS42L42_ASP_MODE_SHIFT; 785 break; 786 case SND_SOC_DAIFMT_CBS_CFS: 787 asp_cfg_val |= CS42L42_ASP_SLAVE_MODE << 788 CS42L42_ASP_MODE_SHIFT; 789 break; 790 default: 791 return -EINVAL; 792 } 793 794 /* interface format */ 795 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 796 case SND_SOC_DAIFMT_I2S: 797 case SND_SOC_DAIFMT_LEFT_J: 798 break; 799 default: 800 return -EINVAL; 801 } 802 803 /* Bitclock/frame inversion */ 804 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 805 case SND_SOC_DAIFMT_NB_NF: 806 break; 807 case SND_SOC_DAIFMT_NB_IF: 808 asp_cfg_val |= CS42L42_ASP_POL_INV << 809 CS42L42_ASP_LCPOL_IN_SHIFT; 810 break; 811 case SND_SOC_DAIFMT_IB_NF: 812 asp_cfg_val |= CS42L42_ASP_POL_INV << 813 CS42L42_ASP_SCPOL_IN_DAC_SHIFT; 814 break; 815 case SND_SOC_DAIFMT_IB_IF: 816 asp_cfg_val |= CS42L42_ASP_POL_INV << 817 CS42L42_ASP_LCPOL_IN_SHIFT; 818 asp_cfg_val |= CS42L42_ASP_POL_INV << 819 CS42L42_ASP_SCPOL_IN_DAC_SHIFT; 820 break; 821 } 822 823 snd_soc_update_bits(codec, CS42L42_ASP_CLK_CFG, 824 CS42L42_ASP_MODE_MASK | 825 CS42L42_ASP_SCPOL_IN_DAC_MASK | 826 CS42L42_ASP_LCPOL_IN_MASK, asp_cfg_val); 827 828 return 0; 829 } 830 831 static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream, 832 struct snd_pcm_hw_params *params, 833 struct snd_soc_dai *dai) 834 { 835 struct snd_soc_codec *codec = dai->codec; 836 struct cs42l42_private *cs42l42 = snd_soc_codec_get_drvdata(codec); 837 int retval; 838 839 cs42l42->srate = params_rate(params); 840 cs42l42->swidth = params_width(params); 841 842 retval = cs42l42_pll_config(codec); 843 844 return retval; 845 } 846 847 static int cs42l42_set_sysclk(struct snd_soc_dai *dai, 848 int clk_id, unsigned int freq, int dir) 849 { 850 struct snd_soc_codec *codec = dai->codec; 851 struct cs42l42_private *cs42l42 = snd_soc_codec_get_drvdata(codec); 852 853 cs42l42->sclk = freq; 854 855 return 0; 856 } 857 858 static int cs42l42_digital_mute(struct snd_soc_dai *dai, int mute) 859 { 860 struct snd_soc_codec *codec = dai->codec; 861 unsigned int regval; 862 u8 fullScaleVol; 863 864 if (mute) { 865 /* Mark SCLK as not present to turn on the internal 866 * oscillator. 867 */ 868 snd_soc_update_bits(codec, CS42L42_OSC_SWITCH, 869 CS42L42_SCLK_PRESENT_MASK, 0); 870 871 snd_soc_update_bits(codec, CS42L42_PLL_CTL1, 872 CS42L42_PLL_START_MASK, 873 0 << CS42L42_PLL_START_SHIFT); 874 875 /* Mute the headphone */ 876 snd_soc_update_bits(codec, CS42L42_HP_CTL, 877 CS42L42_HP_ANA_AMUTE_MASK | 878 CS42L42_HP_ANA_BMUTE_MASK, 879 CS42L42_HP_ANA_AMUTE_MASK | 880 CS42L42_HP_ANA_BMUTE_MASK); 881 } else { 882 snd_soc_update_bits(codec, CS42L42_PLL_CTL1, 883 CS42L42_PLL_START_MASK, 884 1 << CS42L42_PLL_START_SHIFT); 885 /* Read the headphone load */ 886 regval = snd_soc_read(codec, CS42L42_LOAD_DET_RCSTAT); 887 if (((regval & CS42L42_RLA_STAT_MASK) >> 888 CS42L42_RLA_STAT_SHIFT) == CS42L42_RLA_STAT_15_OHM) { 889 fullScaleVol = CS42L42_HP_FULL_SCALE_VOL_MASK; 890 } else { 891 fullScaleVol = 0; 892 } 893 894 /* Un-mute the headphone, set the full scale volume flag */ 895 snd_soc_update_bits(codec, CS42L42_HP_CTL, 896 CS42L42_HP_ANA_AMUTE_MASK | 897 CS42L42_HP_ANA_BMUTE_MASK | 898 CS42L42_HP_FULL_SCALE_VOL_MASK, fullScaleVol); 899 900 /* Mark SCLK as present, turn off internal oscillator */ 901 snd_soc_update_bits(codec, CS42L42_OSC_SWITCH, 902 CS42L42_SCLK_PRESENT_MASK, 903 CS42L42_SCLK_PRESENT_MASK); 904 } 905 906 return 0; 907 } 908 909 #define CS42L42_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \ 910 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE | \ 911 SNDRV_PCM_FMTBIT_S32_LE) 912 913 914 static const struct snd_soc_dai_ops cs42l42_ops = { 915 .hw_params = cs42l42_pcm_hw_params, 916 .set_fmt = cs42l42_set_dai_fmt, 917 .set_sysclk = cs42l42_set_sysclk, 918 .digital_mute = cs42l42_digital_mute 919 }; 920 921 static struct snd_soc_dai_driver cs42l42_dai = { 922 .name = "cs42l42", 923 .playback = { 924 .stream_name = "Playback", 925 .channels_min = 1, 926 .channels_max = 2, 927 .rates = SNDRV_PCM_RATE_8000_192000, 928 .formats = CS42L42_FORMATS, 929 }, 930 .capture = { 931 .stream_name = "Capture", 932 .channels_min = 1, 933 .channels_max = 2, 934 .rates = SNDRV_PCM_RATE_8000_192000, 935 .formats = CS42L42_FORMATS, 936 }, 937 .ops = &cs42l42_ops, 938 }; 939 940 static void cs42l42_process_hs_type_detect(struct cs42l42_private *cs42l42) 941 { 942 unsigned int hs_det_status; 943 unsigned int int_status; 944 945 /* Mask the auto detect interrupt */ 946 regmap_update_bits(cs42l42->regmap, 947 CS42L42_CODEC_INT_MASK, 948 CS42L42_PDN_DONE_MASK | 949 CS42L42_HSDET_AUTO_DONE_MASK, 950 (1 << CS42L42_PDN_DONE_SHIFT) | 951 (1 << CS42L42_HSDET_AUTO_DONE_SHIFT)); 952 953 /* Set hs detect to automatic, disabled mode */ 954 regmap_update_bits(cs42l42->regmap, 955 CS42L42_HSDET_CTL2, 956 CS42L42_HSDET_CTRL_MASK | 957 CS42L42_HSDET_SET_MASK | 958 CS42L42_HSBIAS_REF_MASK | 959 CS42L42_HSDET_AUTO_TIME_MASK, 960 (2 << CS42L42_HSDET_CTRL_SHIFT) | 961 (2 << CS42L42_HSDET_SET_SHIFT) | 962 (0 << CS42L42_HSBIAS_REF_SHIFT) | 963 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); 964 965 /* Read and save the hs detection result */ 966 regmap_read(cs42l42->regmap, CS42L42_HS_DET_STATUS, &hs_det_status); 967 968 cs42l42->hs_type = (hs_det_status & CS42L42_HSDET_TYPE_MASK) >> 969 CS42L42_HSDET_TYPE_SHIFT; 970 971 /* Set up button detection */ 972 if ((cs42l42->hs_type == CS42L42_PLUG_CTIA) || 973 (cs42l42->hs_type == CS42L42_PLUG_OMTP)) { 974 /* Set auto HS bias settings to default */ 975 regmap_update_bits(cs42l42->regmap, 976 CS42L42_HSBIAS_SC_AUTOCTL, 977 CS42L42_HSBIAS_SENSE_EN_MASK | 978 CS42L42_AUTO_HSBIAS_HIZ_MASK | 979 CS42L42_TIP_SENSE_EN_MASK | 980 CS42L42_HSBIAS_SENSE_TRIP_MASK, 981 (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) | 982 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) | 983 (0 << CS42L42_TIP_SENSE_EN_SHIFT) | 984 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT)); 985 986 /* Set up hs detect level sensitivity */ 987 regmap_update_bits(cs42l42->regmap, 988 CS42L42_MIC_DET_CTL1, 989 CS42L42_LATCH_TO_VP_MASK | 990 CS42L42_EVENT_STAT_SEL_MASK | 991 CS42L42_HS_DET_LEVEL_MASK, 992 (1 << CS42L42_LATCH_TO_VP_SHIFT) | 993 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) | 994 (cs42l42->bias_thresholds[0] << 995 CS42L42_HS_DET_LEVEL_SHIFT)); 996 997 /* Set auto HS bias settings to default */ 998 regmap_update_bits(cs42l42->regmap, 999 CS42L42_HSBIAS_SC_AUTOCTL, 1000 CS42L42_HSBIAS_SENSE_EN_MASK | 1001 CS42L42_AUTO_HSBIAS_HIZ_MASK | 1002 CS42L42_TIP_SENSE_EN_MASK | 1003 CS42L42_HSBIAS_SENSE_TRIP_MASK, 1004 (1 << CS42L42_HSBIAS_SENSE_EN_SHIFT) | 1005 (1 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) | 1006 (0 << CS42L42_TIP_SENSE_EN_SHIFT) | 1007 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT)); 1008 1009 /* Turn on level detect circuitry */ 1010 regmap_update_bits(cs42l42->regmap, 1011 CS42L42_MISC_DET_CTL, 1012 CS42L42_DETECT_MODE_MASK | 1013 CS42L42_HSBIAS_CTL_MASK | 1014 CS42L42_PDN_MIC_LVL_DET_MASK, 1015 (0 << CS42L42_DETECT_MODE_SHIFT) | 1016 (3 << CS42L42_HSBIAS_CTL_SHIFT) | 1017 (0 << CS42L42_PDN_MIC_LVL_DET_SHIFT)); 1018 1019 msleep(cs42l42->btn_det_init_dbnce); 1020 1021 /* Clear any button interrupts before unmasking them */ 1022 regmap_read(cs42l42->regmap, CS42L42_DET_INT_STATUS2, 1023 &int_status); 1024 1025 /* Unmask button detect interrupts */ 1026 regmap_update_bits(cs42l42->regmap, 1027 CS42L42_DET_INT2_MASK, 1028 CS42L42_M_DETECT_TF_MASK | 1029 CS42L42_M_DETECT_FT_MASK | 1030 CS42L42_M_HSBIAS_HIZ_MASK | 1031 CS42L42_M_SHORT_RLS_MASK | 1032 CS42L42_M_SHORT_DET_MASK, 1033 (0 << CS42L42_M_DETECT_TF_SHIFT) | 1034 (0 << CS42L42_M_DETECT_FT_SHIFT) | 1035 (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) | 1036 (1 << CS42L42_M_SHORT_RLS_SHIFT) | 1037 (1 << CS42L42_M_SHORT_DET_SHIFT)); 1038 } else { 1039 /* Make sure button detect and HS bias circuits are off */ 1040 regmap_update_bits(cs42l42->regmap, 1041 CS42L42_MISC_DET_CTL, 1042 CS42L42_DETECT_MODE_MASK | 1043 CS42L42_HSBIAS_CTL_MASK | 1044 CS42L42_PDN_MIC_LVL_DET_MASK, 1045 (0 << CS42L42_DETECT_MODE_SHIFT) | 1046 (1 << CS42L42_HSBIAS_CTL_SHIFT) | 1047 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT)); 1048 } 1049 1050 regmap_update_bits(cs42l42->regmap, 1051 CS42L42_DAC_CTL2, 1052 CS42L42_HPOUT_PULLDOWN_MASK | 1053 CS42L42_HPOUT_LOAD_MASK | 1054 CS42L42_HPOUT_CLAMP_MASK | 1055 CS42L42_DAC_HPF_EN_MASK | 1056 CS42L42_DAC_MON_EN_MASK, 1057 (0 << CS42L42_HPOUT_PULLDOWN_SHIFT) | 1058 (0 << CS42L42_HPOUT_LOAD_SHIFT) | 1059 (0 << CS42L42_HPOUT_CLAMP_SHIFT) | 1060 (1 << CS42L42_DAC_HPF_EN_SHIFT) | 1061 (0 << CS42L42_DAC_MON_EN_SHIFT)); 1062 1063 /* Unmask tip sense interrupts */ 1064 regmap_update_bits(cs42l42->regmap, 1065 CS42L42_TSRS_PLUG_INT_MASK, 1066 CS42L42_RS_PLUG_MASK | 1067 CS42L42_RS_UNPLUG_MASK | 1068 CS42L42_TS_PLUG_MASK | 1069 CS42L42_TS_UNPLUG_MASK, 1070 (1 << CS42L42_RS_PLUG_SHIFT) | 1071 (1 << CS42L42_RS_UNPLUG_SHIFT) | 1072 (0 << CS42L42_TS_PLUG_SHIFT) | 1073 (0 << CS42L42_TS_UNPLUG_SHIFT)); 1074 } 1075 1076 static void cs42l42_init_hs_type_detect(struct cs42l42_private *cs42l42) 1077 { 1078 /* Mask tip sense interrupts */ 1079 regmap_update_bits(cs42l42->regmap, 1080 CS42L42_TSRS_PLUG_INT_MASK, 1081 CS42L42_RS_PLUG_MASK | 1082 CS42L42_RS_UNPLUG_MASK | 1083 CS42L42_TS_PLUG_MASK | 1084 CS42L42_TS_UNPLUG_MASK, 1085 (1 << CS42L42_RS_PLUG_SHIFT) | 1086 (1 << CS42L42_RS_UNPLUG_SHIFT) | 1087 (1 << CS42L42_TS_PLUG_SHIFT) | 1088 (1 << CS42L42_TS_UNPLUG_SHIFT)); 1089 1090 /* Make sure button detect and HS bias circuits are off */ 1091 regmap_update_bits(cs42l42->regmap, 1092 CS42L42_MISC_DET_CTL, 1093 CS42L42_DETECT_MODE_MASK | 1094 CS42L42_HSBIAS_CTL_MASK | 1095 CS42L42_PDN_MIC_LVL_DET_MASK, 1096 (0 << CS42L42_DETECT_MODE_SHIFT) | 1097 (1 << CS42L42_HSBIAS_CTL_SHIFT) | 1098 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT)); 1099 1100 /* Set auto HS bias settings to default */ 1101 regmap_update_bits(cs42l42->regmap, 1102 CS42L42_HSBIAS_SC_AUTOCTL, 1103 CS42L42_HSBIAS_SENSE_EN_MASK | 1104 CS42L42_AUTO_HSBIAS_HIZ_MASK | 1105 CS42L42_TIP_SENSE_EN_MASK | 1106 CS42L42_HSBIAS_SENSE_TRIP_MASK, 1107 (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) | 1108 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) | 1109 (0 << CS42L42_TIP_SENSE_EN_SHIFT) | 1110 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT)); 1111 1112 /* Set hs detect to manual, disabled mode */ 1113 regmap_update_bits(cs42l42->regmap, 1114 CS42L42_HSDET_CTL2, 1115 CS42L42_HSDET_CTRL_MASK | 1116 CS42L42_HSDET_SET_MASK | 1117 CS42L42_HSBIAS_REF_MASK | 1118 CS42L42_HSDET_AUTO_TIME_MASK, 1119 (0 << CS42L42_HSDET_CTRL_SHIFT) | 1120 (2 << CS42L42_HSDET_SET_SHIFT) | 1121 (0 << CS42L42_HSBIAS_REF_SHIFT) | 1122 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); 1123 1124 regmap_update_bits(cs42l42->regmap, 1125 CS42L42_DAC_CTL2, 1126 CS42L42_HPOUT_PULLDOWN_MASK | 1127 CS42L42_HPOUT_LOAD_MASK | 1128 CS42L42_HPOUT_CLAMP_MASK | 1129 CS42L42_DAC_HPF_EN_MASK | 1130 CS42L42_DAC_MON_EN_MASK, 1131 (8 << CS42L42_HPOUT_PULLDOWN_SHIFT) | 1132 (0 << CS42L42_HPOUT_LOAD_SHIFT) | 1133 (1 << CS42L42_HPOUT_CLAMP_SHIFT) | 1134 (1 << CS42L42_DAC_HPF_EN_SHIFT) | 1135 (1 << CS42L42_DAC_MON_EN_SHIFT)); 1136 1137 /* Power up HS bias to 2.7V */ 1138 regmap_update_bits(cs42l42->regmap, 1139 CS42L42_MISC_DET_CTL, 1140 CS42L42_DETECT_MODE_MASK | 1141 CS42L42_HSBIAS_CTL_MASK | 1142 CS42L42_PDN_MIC_LVL_DET_MASK, 1143 (0 << CS42L42_DETECT_MODE_SHIFT) | 1144 (3 << CS42L42_HSBIAS_CTL_SHIFT) | 1145 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT)); 1146 1147 /* Wait for HS bias to ramp up */ 1148 msleep(cs42l42->hs_bias_ramp_time); 1149 1150 /* Unmask auto detect interrupt */ 1151 regmap_update_bits(cs42l42->regmap, 1152 CS42L42_CODEC_INT_MASK, 1153 CS42L42_PDN_DONE_MASK | 1154 CS42L42_HSDET_AUTO_DONE_MASK, 1155 (1 << CS42L42_PDN_DONE_SHIFT) | 1156 (0 << CS42L42_HSDET_AUTO_DONE_SHIFT)); 1157 1158 /* Set hs detect to automatic, enabled mode */ 1159 regmap_update_bits(cs42l42->regmap, 1160 CS42L42_HSDET_CTL2, 1161 CS42L42_HSDET_CTRL_MASK | 1162 CS42L42_HSDET_SET_MASK | 1163 CS42L42_HSBIAS_REF_MASK | 1164 CS42L42_HSDET_AUTO_TIME_MASK, 1165 (3 << CS42L42_HSDET_CTRL_SHIFT) | 1166 (2 << CS42L42_HSDET_SET_SHIFT) | 1167 (0 << CS42L42_HSBIAS_REF_SHIFT) | 1168 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); 1169 } 1170 1171 static void cs42l42_cancel_hs_type_detect(struct cs42l42_private *cs42l42) 1172 { 1173 /* Mask button detect interrupts */ 1174 regmap_update_bits(cs42l42->regmap, 1175 CS42L42_DET_INT2_MASK, 1176 CS42L42_M_DETECT_TF_MASK | 1177 CS42L42_M_DETECT_FT_MASK | 1178 CS42L42_M_HSBIAS_HIZ_MASK | 1179 CS42L42_M_SHORT_RLS_MASK | 1180 CS42L42_M_SHORT_DET_MASK, 1181 (1 << CS42L42_M_DETECT_TF_SHIFT) | 1182 (1 << CS42L42_M_DETECT_FT_SHIFT) | 1183 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) | 1184 (1 << CS42L42_M_SHORT_RLS_SHIFT) | 1185 (1 << CS42L42_M_SHORT_DET_SHIFT)); 1186 1187 /* Ground HS bias */ 1188 regmap_update_bits(cs42l42->regmap, 1189 CS42L42_MISC_DET_CTL, 1190 CS42L42_DETECT_MODE_MASK | 1191 CS42L42_HSBIAS_CTL_MASK | 1192 CS42L42_PDN_MIC_LVL_DET_MASK, 1193 (0 << CS42L42_DETECT_MODE_SHIFT) | 1194 (1 << CS42L42_HSBIAS_CTL_SHIFT) | 1195 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT)); 1196 1197 /* Set auto HS bias settings to default */ 1198 regmap_update_bits(cs42l42->regmap, 1199 CS42L42_HSBIAS_SC_AUTOCTL, 1200 CS42L42_HSBIAS_SENSE_EN_MASK | 1201 CS42L42_AUTO_HSBIAS_HIZ_MASK | 1202 CS42L42_TIP_SENSE_EN_MASK | 1203 CS42L42_HSBIAS_SENSE_TRIP_MASK, 1204 (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) | 1205 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) | 1206 (0 << CS42L42_TIP_SENSE_EN_SHIFT) | 1207 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT)); 1208 1209 /* Set hs detect to manual, disabled mode */ 1210 regmap_update_bits(cs42l42->regmap, 1211 CS42L42_HSDET_CTL2, 1212 CS42L42_HSDET_CTRL_MASK | 1213 CS42L42_HSDET_SET_MASK | 1214 CS42L42_HSBIAS_REF_MASK | 1215 CS42L42_HSDET_AUTO_TIME_MASK, 1216 (0 << CS42L42_HSDET_CTRL_SHIFT) | 1217 (2 << CS42L42_HSDET_SET_SHIFT) | 1218 (0 << CS42L42_HSBIAS_REF_SHIFT) | 1219 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); 1220 } 1221 1222 static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) 1223 { 1224 int bias_level; 1225 unsigned int detect_status; 1226 1227 /* Mask button detect interrupts */ 1228 regmap_update_bits(cs42l42->regmap, 1229 CS42L42_DET_INT2_MASK, 1230 CS42L42_M_DETECT_TF_MASK | 1231 CS42L42_M_DETECT_FT_MASK | 1232 CS42L42_M_HSBIAS_HIZ_MASK | 1233 CS42L42_M_SHORT_RLS_MASK | 1234 CS42L42_M_SHORT_DET_MASK, 1235 (1 << CS42L42_M_DETECT_TF_SHIFT) | 1236 (1 << CS42L42_M_DETECT_FT_SHIFT) | 1237 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) | 1238 (1 << CS42L42_M_SHORT_RLS_SHIFT) | 1239 (1 << CS42L42_M_SHORT_DET_SHIFT)); 1240 1241 usleep_range(cs42l42->btn_det_event_dbnce * 1000, 1242 cs42l42->btn_det_event_dbnce * 2000); 1243 1244 /* Test all 4 level detect biases */ 1245 bias_level = 1; 1246 do { 1247 /* Adjust button detect level sensitivity */ 1248 regmap_update_bits(cs42l42->regmap, 1249 CS42L42_MIC_DET_CTL1, 1250 CS42L42_LATCH_TO_VP_MASK | 1251 CS42L42_EVENT_STAT_SEL_MASK | 1252 CS42L42_HS_DET_LEVEL_MASK, 1253 (1 << CS42L42_LATCH_TO_VP_SHIFT) | 1254 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) | 1255 (cs42l42->bias_thresholds[bias_level] << 1256 CS42L42_HS_DET_LEVEL_SHIFT)); 1257 1258 regmap_read(cs42l42->regmap, CS42L42_DET_STATUS2, 1259 &detect_status); 1260 } while ((detect_status & CS42L42_HS_TRUE_MASK) && 1261 (++bias_level < CS42L42_NUM_BIASES)); 1262 1263 switch (bias_level) { 1264 case 1: /* Function C button press */ 1265 dev_dbg(cs42l42->codec->dev, "Function C button press\n"); 1266 break; 1267 case 2: /* Function B button press */ 1268 dev_dbg(cs42l42->codec->dev, "Function B button press\n"); 1269 break; 1270 case 3: /* Function D button press */ 1271 dev_dbg(cs42l42->codec->dev, "Function D button press\n"); 1272 break; 1273 case 4: /* Function A button press */ 1274 dev_dbg(cs42l42->codec->dev, "Function A button press\n"); 1275 break; 1276 } 1277 1278 /* Set button detect level sensitivity back to default */ 1279 regmap_update_bits(cs42l42->regmap, 1280 CS42L42_MIC_DET_CTL1, 1281 CS42L42_LATCH_TO_VP_MASK | 1282 CS42L42_EVENT_STAT_SEL_MASK | 1283 CS42L42_HS_DET_LEVEL_MASK, 1284 (1 << CS42L42_LATCH_TO_VP_SHIFT) | 1285 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) | 1286 (cs42l42->bias_thresholds[0] << CS42L42_HS_DET_LEVEL_SHIFT)); 1287 1288 /* Clear any button interrupts before unmasking them */ 1289 regmap_read(cs42l42->regmap, CS42L42_DET_INT_STATUS2, 1290 &detect_status); 1291 1292 /* Unmask button detect interrupts */ 1293 regmap_update_bits(cs42l42->regmap, 1294 CS42L42_DET_INT2_MASK, 1295 CS42L42_M_DETECT_TF_MASK | 1296 CS42L42_M_DETECT_FT_MASK | 1297 CS42L42_M_HSBIAS_HIZ_MASK | 1298 CS42L42_M_SHORT_RLS_MASK | 1299 CS42L42_M_SHORT_DET_MASK, 1300 (0 << CS42L42_M_DETECT_TF_SHIFT) | 1301 (0 << CS42L42_M_DETECT_FT_SHIFT) | 1302 (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) | 1303 (1 << CS42L42_M_SHORT_RLS_SHIFT) | 1304 (1 << CS42L42_M_SHORT_DET_SHIFT)); 1305 } 1306 1307 struct cs42l42_irq_params { 1308 u16 status_addr; 1309 u16 mask_addr; 1310 u8 mask; 1311 }; 1312 1313 static const struct cs42l42_irq_params irq_params_table[] = { 1314 {CS42L42_ADC_OVFL_STATUS, CS42L42_ADC_OVFL_INT_MASK, 1315 CS42L42_ADC_OVFL_VAL_MASK}, 1316 {CS42L42_MIXER_STATUS, CS42L42_MIXER_INT_MASK, 1317 CS42L42_MIXER_VAL_MASK}, 1318 {CS42L42_SRC_STATUS, CS42L42_SRC_INT_MASK, 1319 CS42L42_SRC_VAL_MASK}, 1320 {CS42L42_ASP_RX_STATUS, CS42L42_ASP_RX_INT_MASK, 1321 CS42L42_ASP_RX_VAL_MASK}, 1322 {CS42L42_ASP_TX_STATUS, CS42L42_ASP_TX_INT_MASK, 1323 CS42L42_ASP_TX_VAL_MASK}, 1324 {CS42L42_CODEC_STATUS, CS42L42_CODEC_INT_MASK, 1325 CS42L42_CODEC_VAL_MASK}, 1326 {CS42L42_DET_INT_STATUS1, CS42L42_DET_INT1_MASK, 1327 CS42L42_DET_INT_VAL1_MASK}, 1328 {CS42L42_DET_INT_STATUS2, CS42L42_DET_INT2_MASK, 1329 CS42L42_DET_INT_VAL2_MASK}, 1330 {CS42L42_SRCPL_INT_STATUS, CS42L42_SRCPL_INT_MASK, 1331 CS42L42_SRCPL_VAL_MASK}, 1332 {CS42L42_VPMON_STATUS, CS42L42_VPMON_INT_MASK, 1333 CS42L42_VPMON_VAL_MASK}, 1334 {CS42L42_PLL_LOCK_STATUS, CS42L42_PLL_LOCK_INT_MASK, 1335 CS42L42_PLL_LOCK_VAL_MASK}, 1336 {CS42L42_TSRS_PLUG_STATUS, CS42L42_TSRS_PLUG_INT_MASK, 1337 CS42L42_TSRS_PLUG_VAL_MASK} 1338 }; 1339 1340 static irqreturn_t cs42l42_irq_thread(int irq, void *data) 1341 { 1342 struct cs42l42_private *cs42l42 = (struct cs42l42_private *)data; 1343 struct snd_soc_codec *codec = cs42l42->codec; 1344 unsigned int stickies[12]; 1345 unsigned int masks[12]; 1346 unsigned int current_plug_status; 1347 unsigned int current_button_status; 1348 unsigned int i; 1349 1350 /* Read sticky registers to clear interurpt */ 1351 for (i = 0; i < ARRAY_SIZE(stickies); i++) { 1352 regmap_read(cs42l42->regmap, irq_params_table[i].status_addr, 1353 &(stickies[i])); 1354 regmap_read(cs42l42->regmap, irq_params_table[i].mask_addr, 1355 &(masks[i])); 1356 stickies[i] = stickies[i] & (~masks[i]) & 1357 irq_params_table[i].mask; 1358 } 1359 1360 /* Read tip sense status before handling type detect */ 1361 current_plug_status = (stickies[11] & 1362 (CS42L42_TS_PLUG_MASK | CS42L42_TS_UNPLUG_MASK)) >> 1363 CS42L42_TS_PLUG_SHIFT; 1364 1365 /* Read button sense status */ 1366 current_button_status = stickies[7] & 1367 (CS42L42_M_DETECT_TF_MASK | 1368 CS42L42_M_DETECT_FT_MASK | 1369 CS42L42_M_HSBIAS_HIZ_MASK); 1370 1371 /* Check auto-detect status */ 1372 if ((~masks[5]) & irq_params_table[5].mask) { 1373 if (stickies[5] & CS42L42_HSDET_AUTO_DONE_MASK) { 1374 cs42l42_process_hs_type_detect(cs42l42); 1375 dev_dbg(codec->dev, 1376 "Auto detect done (%d)\n", 1377 cs42l42->hs_type); 1378 } 1379 } 1380 1381 /* Check tip sense status */ 1382 if ((~masks[11]) & irq_params_table[11].mask) { 1383 switch (current_plug_status) { 1384 case CS42L42_TS_PLUG: 1385 if (cs42l42->plug_state != CS42L42_TS_PLUG) { 1386 cs42l42->plug_state = CS42L42_TS_PLUG; 1387 cs42l42_init_hs_type_detect(cs42l42); 1388 } 1389 break; 1390 1391 case CS42L42_TS_UNPLUG: 1392 if (cs42l42->plug_state != CS42L42_TS_UNPLUG) { 1393 cs42l42->plug_state = CS42L42_TS_UNPLUG; 1394 cs42l42_cancel_hs_type_detect(cs42l42); 1395 dev_dbg(codec->dev, 1396 "Unplug event\n"); 1397 } 1398 break; 1399 1400 default: 1401 if (cs42l42->plug_state != CS42L42_TS_TRANS) 1402 cs42l42->plug_state = CS42L42_TS_TRANS; 1403 } 1404 } 1405 1406 /* Check button detect status */ 1407 if ((~masks[7]) & irq_params_table[7].mask) { 1408 if (!(current_button_status & 1409 CS42L42_M_HSBIAS_HIZ_MASK)) { 1410 1411 if (current_button_status & 1412 CS42L42_M_DETECT_TF_MASK) { 1413 dev_dbg(codec->dev, 1414 "Button released\n"); 1415 } else if (current_button_status & 1416 CS42L42_M_DETECT_FT_MASK) { 1417 cs42l42_handle_button_press(cs42l42); 1418 } 1419 } 1420 } 1421 1422 return IRQ_HANDLED; 1423 } 1424 1425 static void cs42l42_set_interrupt_masks(struct cs42l42_private *cs42l42) 1426 { 1427 regmap_update_bits(cs42l42->regmap, CS42L42_ADC_OVFL_INT_MASK, 1428 CS42L42_ADC_OVFL_MASK, 1429 (1 << CS42L42_ADC_OVFL_SHIFT)); 1430 1431 regmap_update_bits(cs42l42->regmap, CS42L42_MIXER_INT_MASK, 1432 CS42L42_MIX_CHB_OVFL_MASK | 1433 CS42L42_MIX_CHA_OVFL_MASK | 1434 CS42L42_EQ_OVFL_MASK | 1435 CS42L42_EQ_BIQUAD_OVFL_MASK, 1436 (1 << CS42L42_MIX_CHB_OVFL_SHIFT) | 1437 (1 << CS42L42_MIX_CHA_OVFL_SHIFT) | 1438 (1 << CS42L42_EQ_OVFL_SHIFT) | 1439 (1 << CS42L42_EQ_BIQUAD_OVFL_SHIFT)); 1440 1441 regmap_update_bits(cs42l42->regmap, CS42L42_SRC_INT_MASK, 1442 CS42L42_SRC_ILK_MASK | 1443 CS42L42_SRC_OLK_MASK | 1444 CS42L42_SRC_IUNLK_MASK | 1445 CS42L42_SRC_OUNLK_MASK, 1446 (1 << CS42L42_SRC_ILK_SHIFT) | 1447 (1 << CS42L42_SRC_OLK_SHIFT) | 1448 (1 << CS42L42_SRC_IUNLK_SHIFT) | 1449 (1 << CS42L42_SRC_OUNLK_SHIFT)); 1450 1451 regmap_update_bits(cs42l42->regmap, CS42L42_ASP_RX_INT_MASK, 1452 CS42L42_ASPRX_NOLRCK_MASK | 1453 CS42L42_ASPRX_EARLY_MASK | 1454 CS42L42_ASPRX_LATE_MASK | 1455 CS42L42_ASPRX_ERROR_MASK | 1456 CS42L42_ASPRX_OVLD_MASK, 1457 (1 << CS42L42_ASPRX_NOLRCK_SHIFT) | 1458 (1 << CS42L42_ASPRX_EARLY_SHIFT) | 1459 (1 << CS42L42_ASPRX_LATE_SHIFT) | 1460 (1 << CS42L42_ASPRX_ERROR_SHIFT) | 1461 (1 << CS42L42_ASPRX_OVLD_SHIFT)); 1462 1463 regmap_update_bits(cs42l42->regmap, CS42L42_ASP_TX_INT_MASK, 1464 CS42L42_ASPTX_NOLRCK_MASK | 1465 CS42L42_ASPTX_EARLY_MASK | 1466 CS42L42_ASPTX_LATE_MASK | 1467 CS42L42_ASPTX_SMERROR_MASK, 1468 (1 << CS42L42_ASPTX_NOLRCK_SHIFT) | 1469 (1 << CS42L42_ASPTX_EARLY_SHIFT) | 1470 (1 << CS42L42_ASPTX_LATE_SHIFT) | 1471 (1 << CS42L42_ASPTX_SMERROR_SHIFT)); 1472 1473 regmap_update_bits(cs42l42->regmap, CS42L42_CODEC_INT_MASK, 1474 CS42L42_PDN_DONE_MASK | 1475 CS42L42_HSDET_AUTO_DONE_MASK, 1476 (1 << CS42L42_PDN_DONE_SHIFT) | 1477 (1 << CS42L42_HSDET_AUTO_DONE_SHIFT)); 1478 1479 regmap_update_bits(cs42l42->regmap, CS42L42_SRCPL_INT_MASK, 1480 CS42L42_SRCPL_ADC_LK_MASK | 1481 CS42L42_SRCPL_DAC_LK_MASK | 1482 CS42L42_SRCPL_ADC_UNLK_MASK | 1483 CS42L42_SRCPL_DAC_UNLK_MASK, 1484 (1 << CS42L42_SRCPL_ADC_LK_SHIFT) | 1485 (1 << CS42L42_SRCPL_DAC_LK_SHIFT) | 1486 (1 << CS42L42_SRCPL_ADC_UNLK_SHIFT) | 1487 (1 << CS42L42_SRCPL_DAC_UNLK_SHIFT)); 1488 1489 regmap_update_bits(cs42l42->regmap, CS42L42_DET_INT1_MASK, 1490 CS42L42_TIP_SENSE_UNPLUG_MASK | 1491 CS42L42_TIP_SENSE_PLUG_MASK | 1492 CS42L42_HSBIAS_SENSE_MASK, 1493 (1 << CS42L42_TIP_SENSE_UNPLUG_SHIFT) | 1494 (1 << CS42L42_TIP_SENSE_PLUG_SHIFT) | 1495 (1 << CS42L42_HSBIAS_SENSE_SHIFT)); 1496 1497 regmap_update_bits(cs42l42->regmap, CS42L42_DET_INT2_MASK, 1498 CS42L42_M_DETECT_TF_MASK | 1499 CS42L42_M_DETECT_FT_MASK | 1500 CS42L42_M_HSBIAS_HIZ_MASK | 1501 CS42L42_M_SHORT_RLS_MASK | 1502 CS42L42_M_SHORT_DET_MASK, 1503 (1 << CS42L42_M_DETECT_TF_SHIFT) | 1504 (1 << CS42L42_M_DETECT_FT_SHIFT) | 1505 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) | 1506 (1 << CS42L42_M_SHORT_RLS_SHIFT) | 1507 (1 << CS42L42_M_SHORT_DET_SHIFT)); 1508 1509 regmap_update_bits(cs42l42->regmap, CS42L42_VPMON_INT_MASK, 1510 CS42L42_VPMON_MASK, 1511 (1 << CS42L42_VPMON_SHIFT)); 1512 1513 regmap_update_bits(cs42l42->regmap, CS42L42_PLL_LOCK_INT_MASK, 1514 CS42L42_PLL_LOCK_MASK, 1515 (1 << CS42L42_PLL_LOCK_SHIFT)); 1516 1517 regmap_update_bits(cs42l42->regmap, CS42L42_TSRS_PLUG_INT_MASK, 1518 CS42L42_RS_PLUG_MASK | 1519 CS42L42_RS_UNPLUG_MASK | 1520 CS42L42_TS_PLUG_MASK | 1521 CS42L42_TS_UNPLUG_MASK, 1522 (1 << CS42L42_RS_PLUG_SHIFT) | 1523 (1 << CS42L42_RS_UNPLUG_SHIFT) | 1524 (0 << CS42L42_TS_PLUG_SHIFT) | 1525 (0 << CS42L42_TS_UNPLUG_SHIFT)); 1526 } 1527 1528 static void cs42l42_setup_hs_type_detect(struct cs42l42_private *cs42l42) 1529 { 1530 unsigned int reg; 1531 1532 cs42l42->hs_type = CS42L42_PLUG_INVALID; 1533 1534 /* Latch analog controls to VP power domain */ 1535 regmap_update_bits(cs42l42->regmap, CS42L42_MIC_DET_CTL1, 1536 CS42L42_LATCH_TO_VP_MASK | 1537 CS42L42_EVENT_STAT_SEL_MASK | 1538 CS42L42_HS_DET_LEVEL_MASK, 1539 (1 << CS42L42_LATCH_TO_VP_SHIFT) | 1540 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) | 1541 (cs42l42->bias_thresholds[0] << 1542 CS42L42_HS_DET_LEVEL_SHIFT)); 1543 1544 /* Remove ground noise-suppression clamps */ 1545 regmap_update_bits(cs42l42->regmap, 1546 CS42L42_HS_CLAMP_DISABLE, 1547 CS42L42_HS_CLAMP_DISABLE_MASK, 1548 (1 << CS42L42_HS_CLAMP_DISABLE_SHIFT)); 1549 1550 /* Enable the tip sense circuit */ 1551 regmap_update_bits(cs42l42->regmap, CS42L42_TIPSENSE_CTL, 1552 CS42L42_TIP_SENSE_CTRL_MASK | 1553 CS42L42_TIP_SENSE_INV_MASK | 1554 CS42L42_TIP_SENSE_DEBOUNCE_MASK, 1555 (3 << CS42L42_TIP_SENSE_CTRL_SHIFT) | 1556 (0 << CS42L42_TIP_SENSE_INV_SHIFT) | 1557 (2 << CS42L42_TIP_SENSE_DEBOUNCE_SHIFT)); 1558 1559 /* Save the initial status of the tip sense */ 1560 regmap_read(cs42l42->regmap, 1561 CS42L42_TSRS_PLUG_STATUS, 1562 ®); 1563 cs42l42->plug_state = (((char) reg) & 1564 (CS42L42_TS_PLUG_MASK | CS42L42_TS_UNPLUG_MASK)) >> 1565 CS42L42_TS_PLUG_SHIFT; 1566 } 1567 1568 static const unsigned int threshold_defaults[] = { 1569 CS42L42_HS_DET_LEVEL_15, 1570 CS42L42_HS_DET_LEVEL_8, 1571 CS42L42_HS_DET_LEVEL_4, 1572 CS42L42_HS_DET_LEVEL_1 1573 }; 1574 1575 static int cs42l42_handle_device_data(struct i2c_client *i2c_client, 1576 struct cs42l42_private *cs42l42) 1577 { 1578 struct device_node *np = i2c_client->dev.of_node; 1579 unsigned int val; 1580 unsigned int thresholds[CS42L42_NUM_BIASES]; 1581 int ret; 1582 int i; 1583 1584 ret = of_property_read_u32(np, "cirrus,ts-inv", &val); 1585 1586 if (!ret) { 1587 switch (val) { 1588 case CS42L42_TS_INV_EN: 1589 case CS42L42_TS_INV_DIS: 1590 cs42l42->ts_inv = val; 1591 break; 1592 default: 1593 dev_err(&i2c_client->dev, 1594 "Wrong cirrus,ts-inv DT value %d\n", 1595 val); 1596 cs42l42->ts_inv = CS42L42_TS_INV_DIS; 1597 } 1598 } else { 1599 cs42l42->ts_inv = CS42L42_TS_INV_DIS; 1600 } 1601 1602 regmap_update_bits(cs42l42->regmap, CS42L42_TSENSE_CTL, 1603 CS42L42_TS_INV_MASK, 1604 (cs42l42->ts_inv << CS42L42_TS_INV_SHIFT)); 1605 1606 ret = of_property_read_u32(np, "cirrus,ts-dbnc-rise", &val); 1607 1608 if (!ret) { 1609 switch (val) { 1610 case CS42L42_TS_DBNCE_0: 1611 case CS42L42_TS_DBNCE_125: 1612 case CS42L42_TS_DBNCE_250: 1613 case CS42L42_TS_DBNCE_500: 1614 case CS42L42_TS_DBNCE_750: 1615 case CS42L42_TS_DBNCE_1000: 1616 case CS42L42_TS_DBNCE_1250: 1617 case CS42L42_TS_DBNCE_1500: 1618 cs42l42->ts_dbnc_rise = val; 1619 break; 1620 default: 1621 dev_err(&i2c_client->dev, 1622 "Wrong cirrus,ts-dbnc-rise DT value %d\n", 1623 val); 1624 cs42l42->ts_dbnc_rise = CS42L42_TS_DBNCE_1000; 1625 } 1626 } else { 1627 cs42l42->ts_dbnc_rise = CS42L42_TS_DBNCE_1000; 1628 } 1629 1630 regmap_update_bits(cs42l42->regmap, CS42L42_TSENSE_CTL, 1631 CS42L42_TS_RISE_DBNCE_TIME_MASK, 1632 (cs42l42->ts_dbnc_rise << 1633 CS42L42_TS_RISE_DBNCE_TIME_SHIFT)); 1634 1635 ret = of_property_read_u32(np, "cirrus,ts-dbnc-fall", &val); 1636 1637 if (!ret) { 1638 switch (val) { 1639 case CS42L42_TS_DBNCE_0: 1640 case CS42L42_TS_DBNCE_125: 1641 case CS42L42_TS_DBNCE_250: 1642 case CS42L42_TS_DBNCE_500: 1643 case CS42L42_TS_DBNCE_750: 1644 case CS42L42_TS_DBNCE_1000: 1645 case CS42L42_TS_DBNCE_1250: 1646 case CS42L42_TS_DBNCE_1500: 1647 cs42l42->ts_dbnc_fall = val; 1648 break; 1649 default: 1650 dev_err(&i2c_client->dev, 1651 "Wrong cirrus,ts-dbnc-fall DT value %d\n", 1652 val); 1653 cs42l42->ts_dbnc_fall = CS42L42_TS_DBNCE_0; 1654 } 1655 } else { 1656 cs42l42->ts_dbnc_fall = CS42L42_TS_DBNCE_0; 1657 } 1658 1659 regmap_update_bits(cs42l42->regmap, CS42L42_TSENSE_CTL, 1660 CS42L42_TS_FALL_DBNCE_TIME_MASK, 1661 (cs42l42->ts_dbnc_fall << 1662 CS42L42_TS_FALL_DBNCE_TIME_SHIFT)); 1663 1664 ret = of_property_read_u32(np, "cirrus,btn-det-init-dbnce", &val); 1665 1666 if (!ret) { 1667 if ((val >= CS42L42_BTN_DET_INIT_DBNCE_MIN) && 1668 (val <= CS42L42_BTN_DET_INIT_DBNCE_MAX)) 1669 cs42l42->btn_det_init_dbnce = val; 1670 else { 1671 dev_err(&i2c_client->dev, 1672 "Wrong cirrus,btn-det-init-dbnce DT value %d\n", 1673 val); 1674 cs42l42->btn_det_init_dbnce = 1675 CS42L42_BTN_DET_INIT_DBNCE_DEFAULT; 1676 } 1677 } else { 1678 cs42l42->btn_det_init_dbnce = 1679 CS42L42_BTN_DET_INIT_DBNCE_DEFAULT; 1680 } 1681 1682 ret = of_property_read_u32(np, "cirrus,btn-det-event-dbnce", &val); 1683 1684 if (!ret) { 1685 if ((val >= CS42L42_BTN_DET_EVENT_DBNCE_MIN) && 1686 (val <= CS42L42_BTN_DET_EVENT_DBNCE_MAX)) 1687 cs42l42->btn_det_event_dbnce = val; 1688 else { 1689 dev_err(&i2c_client->dev, 1690 "Wrong cirrus,btn-det-event-dbnce DT value %d\n", val); 1691 cs42l42->btn_det_event_dbnce = 1692 CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT; 1693 } 1694 } else { 1695 cs42l42->btn_det_event_dbnce = 1696 CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT; 1697 } 1698 1699 ret = of_property_read_u32_array(np, "cirrus,bias-lvls", 1700 (u32 *)thresholds, CS42L42_NUM_BIASES); 1701 1702 if (!ret) { 1703 for (i = 0; i < CS42L42_NUM_BIASES; i++) { 1704 if ((thresholds[i] >= CS42L42_HS_DET_LEVEL_MIN) && 1705 (thresholds[i] <= CS42L42_HS_DET_LEVEL_MAX)) 1706 cs42l42->bias_thresholds[i] = thresholds[i]; 1707 else { 1708 dev_err(&i2c_client->dev, 1709 "Wrong cirrus,bias-lvls[%d] DT value %d\n", i, 1710 thresholds[i]); 1711 cs42l42->bias_thresholds[i] = 1712 threshold_defaults[i]; 1713 } 1714 } 1715 } else { 1716 for (i = 0; i < CS42L42_NUM_BIASES; i++) 1717 cs42l42->bias_thresholds[i] = threshold_defaults[i]; 1718 } 1719 1720 ret = of_property_read_u32(np, "cirrus,hs-bias-ramp-rate", &val); 1721 1722 if (!ret) { 1723 switch (val) { 1724 case CS42L42_HSBIAS_RAMP_FAST_RISE_SLOW_FALL: 1725 cs42l42->hs_bias_ramp_rate = val; 1726 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME0; 1727 break; 1728 case CS42L42_HSBIAS_RAMP_FAST: 1729 cs42l42->hs_bias_ramp_rate = val; 1730 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME1; 1731 break; 1732 case CS42L42_HSBIAS_RAMP_SLOW: 1733 cs42l42->hs_bias_ramp_rate = val; 1734 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2; 1735 break; 1736 case CS42L42_HSBIAS_RAMP_SLOWEST: 1737 cs42l42->hs_bias_ramp_rate = val; 1738 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME3; 1739 break; 1740 default: 1741 dev_err(&i2c_client->dev, 1742 "Wrong cirrus,hs-bias-ramp-rate DT value %d\n", 1743 val); 1744 cs42l42->hs_bias_ramp_rate = CS42L42_HSBIAS_RAMP_SLOW; 1745 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2; 1746 } 1747 } else { 1748 cs42l42->hs_bias_ramp_rate = CS42L42_HSBIAS_RAMP_SLOW; 1749 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2; 1750 } 1751 1752 regmap_update_bits(cs42l42->regmap, CS42L42_HS_BIAS_CTL, 1753 CS42L42_HSBIAS_RAMP_MASK, 1754 (cs42l42->hs_bias_ramp_rate << 1755 CS42L42_HSBIAS_RAMP_SHIFT)); 1756 1757 return 0; 1758 } 1759 1760 static int cs42l42_i2c_probe(struct i2c_client *i2c_client, 1761 const struct i2c_device_id *id) 1762 { 1763 struct cs42l42_private *cs42l42; 1764 int ret, i; 1765 unsigned int devid = 0; 1766 unsigned int reg; 1767 1768 cs42l42 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l42_private), 1769 GFP_KERNEL); 1770 if (!cs42l42) 1771 return -ENOMEM; 1772 1773 i2c_set_clientdata(i2c_client, cs42l42); 1774 1775 cs42l42->regmap = devm_regmap_init_i2c(i2c_client, &cs42l42_regmap); 1776 if (IS_ERR(cs42l42->regmap)) { 1777 ret = PTR_ERR(cs42l42->regmap); 1778 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1779 return ret; 1780 } 1781 1782 for (i = 0; i < ARRAY_SIZE(cs42l42->supplies); i++) 1783 cs42l42->supplies[i].supply = cs42l42_supply_names[i]; 1784 1785 ret = devm_regulator_bulk_get(&i2c_client->dev, 1786 ARRAY_SIZE(cs42l42->supplies), 1787 cs42l42->supplies); 1788 if (ret != 0) { 1789 dev_err(&i2c_client->dev, 1790 "Failed to request supplies: %d\n", ret); 1791 return ret; 1792 } 1793 1794 ret = regulator_bulk_enable(ARRAY_SIZE(cs42l42->supplies), 1795 cs42l42->supplies); 1796 if (ret != 0) { 1797 dev_err(&i2c_client->dev, 1798 "Failed to enable supplies: %d\n", ret); 1799 return ret; 1800 } 1801 1802 /* Reset the Device */ 1803 cs42l42->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, 1804 "reset", GPIOD_OUT_LOW); 1805 if (IS_ERR(cs42l42->reset_gpio)) 1806 return PTR_ERR(cs42l42->reset_gpio); 1807 1808 if (cs42l42->reset_gpio) { 1809 dev_dbg(&i2c_client->dev, "Found reset GPIO\n"); 1810 gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); 1811 } 1812 mdelay(3); 1813 1814 /* Request IRQ */ 1815 ret = devm_request_threaded_irq(&i2c_client->dev, 1816 i2c_client->irq, 1817 NULL, cs42l42_irq_thread, 1818 IRQF_ONESHOT | IRQF_TRIGGER_LOW, 1819 "cs42l42", cs42l42); 1820 1821 if (ret != 0) 1822 dev_err(&i2c_client->dev, 1823 "Failed to request IRQ: %d\n", ret); 1824 1825 /* initialize codec */ 1826 ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_AB, ®); 1827 devid = (reg & 0xFF) << 12; 1828 1829 ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_CD, ®); 1830 devid |= (reg & 0xFF) << 4; 1831 1832 ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_E, ®); 1833 devid |= (reg & 0xF0) >> 4; 1834 1835 if (devid != CS42L42_CHIP_ID) { 1836 ret = -ENODEV; 1837 dev_err(&i2c_client->dev, 1838 "CS42L42 Device ID (%X). Expected %X\n", 1839 devid, CS42L42_CHIP_ID); 1840 return ret; 1841 } 1842 1843 ret = regmap_read(cs42l42->regmap, CS42L42_REVID, ®); 1844 if (ret < 0) { 1845 dev_err(&i2c_client->dev, "Get Revision ID failed\n"); 1846 return ret; 1847 } 1848 1849 dev_info(&i2c_client->dev, 1850 "Cirrus Logic CS42L42, Revision: %02X\n", reg & 0xFF); 1851 1852 /* Power up the codec */ 1853 regmap_update_bits(cs42l42->regmap, CS42L42_PWR_CTL1, 1854 CS42L42_ASP_DAO_PDN_MASK | 1855 CS42L42_ASP_DAI_PDN_MASK | 1856 CS42L42_MIXER_PDN_MASK | 1857 CS42L42_EQ_PDN_MASK | 1858 CS42L42_HP_PDN_MASK | 1859 CS42L42_ADC_PDN_MASK | 1860 CS42L42_PDN_ALL_MASK, 1861 (1 << CS42L42_ASP_DAO_PDN_SHIFT) | 1862 (1 << CS42L42_ASP_DAI_PDN_SHIFT) | 1863 (1 << CS42L42_MIXER_PDN_SHIFT) | 1864 (1 << CS42L42_EQ_PDN_SHIFT) | 1865 (1 << CS42L42_HP_PDN_SHIFT) | 1866 (1 << CS42L42_ADC_PDN_SHIFT) | 1867 (0 << CS42L42_PDN_ALL_SHIFT)); 1868 1869 if (i2c_client->dev.of_node) { 1870 ret = cs42l42_handle_device_data(i2c_client, cs42l42); 1871 if (ret != 0) 1872 return ret; 1873 } 1874 1875 /* Setup headset detection */ 1876 cs42l42_setup_hs_type_detect(cs42l42); 1877 1878 /* Mask/Unmask Interrupts */ 1879 cs42l42_set_interrupt_masks(cs42l42); 1880 1881 /* Register codec for machine driver */ 1882 ret = snd_soc_register_codec(&i2c_client->dev, 1883 &soc_codec_dev_cs42l42, &cs42l42_dai, 1); 1884 if (ret < 0) 1885 goto err_disable; 1886 return 0; 1887 1888 err_disable: 1889 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), 1890 cs42l42->supplies); 1891 return ret; 1892 } 1893 1894 static int cs42l42_i2c_remove(struct i2c_client *i2c_client) 1895 { 1896 struct cs42l42_private *cs42l42 = i2c_get_clientdata(i2c_client); 1897 1898 snd_soc_unregister_codec(&i2c_client->dev); 1899 1900 /* Hold down reset */ 1901 gpiod_set_value_cansleep(cs42l42->reset_gpio, 0); 1902 1903 return 0; 1904 } 1905 1906 #ifdef CONFIG_PM 1907 static int cs42l42_runtime_suspend(struct device *dev) 1908 { 1909 struct cs42l42_private *cs42l42 = dev_get_drvdata(dev); 1910 1911 regcache_cache_only(cs42l42->regmap, true); 1912 regcache_mark_dirty(cs42l42->regmap); 1913 1914 /* Hold down reset */ 1915 gpiod_set_value_cansleep(cs42l42->reset_gpio, 0); 1916 1917 /* remove power */ 1918 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), 1919 cs42l42->supplies); 1920 1921 return 0; 1922 } 1923 1924 static int cs42l42_runtime_resume(struct device *dev) 1925 { 1926 struct cs42l42_private *cs42l42 = dev_get_drvdata(dev); 1927 int ret; 1928 1929 /* Enable power */ 1930 ret = regulator_bulk_enable(ARRAY_SIZE(cs42l42->supplies), 1931 cs42l42->supplies); 1932 if (ret != 0) { 1933 dev_err(dev, "Failed to enable supplies: %d\n", 1934 ret); 1935 return ret; 1936 } 1937 1938 gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); 1939 1940 regcache_cache_only(cs42l42->regmap, false); 1941 regcache_sync(cs42l42->regmap); 1942 1943 return 0; 1944 } 1945 #endif 1946 1947 static const struct dev_pm_ops cs42l42_runtime_pm = { 1948 SET_RUNTIME_PM_OPS(cs42l42_runtime_suspend, cs42l42_runtime_resume, 1949 NULL) 1950 }; 1951 1952 static const struct of_device_id cs42l42_of_match[] = { 1953 { .compatible = "cirrus,cs42l42", }, 1954 {}, 1955 }; 1956 MODULE_DEVICE_TABLE(of, cs42l42_of_match); 1957 1958 1959 static const struct i2c_device_id cs42l42_id[] = { 1960 {"cs42l42", 0}, 1961 {} 1962 }; 1963 1964 MODULE_DEVICE_TABLE(i2c, cs42l42_id); 1965 1966 static struct i2c_driver cs42l42_i2c_driver = { 1967 .driver = { 1968 .name = "cs42l42", 1969 .pm = &cs42l42_runtime_pm, 1970 .of_match_table = cs42l42_of_match, 1971 }, 1972 .id_table = cs42l42_id, 1973 .probe = cs42l42_i2c_probe, 1974 .remove = cs42l42_i2c_remove, 1975 }; 1976 1977 module_i2c_driver(cs42l42_i2c_driver); 1978 1979 MODULE_DESCRIPTION("ASoC CS42L42 driver"); 1980 MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); 1981 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1982 MODULE_AUTHOR("Michael White, Cirrus Logic Inc, <michael.white@cirrus.com>"); 1983 MODULE_LICENSE("GPL"); 1984