1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // nau8821.c -- Nuvoton NAU88L21 audio codec driver 4 // 5 // Copyright 2021 Nuvoton Technology Corp. 6 // Author: John Hsu <kchsu0@nuvoton.com> 7 // Co-author: Seven Lee <wtli@nuvoton.com> 8 // 9 10 #include <linux/acpi.h> 11 #include <linux/clk.h> 12 #include <linux/delay.h> 13 #include <linux/dmi.h> 14 #include <linux/init.h> 15 #include <linux/i2c.h> 16 #include <linux/module.h> 17 #include <linux/math64.h> 18 #include <linux/regmap.h> 19 #include <linux/slab.h> 20 #include <sound/core.h> 21 #include <sound/initval.h> 22 #include <sound/jack.h> 23 #include <sound/pcm.h> 24 #include <sound/pcm_params.h> 25 #include <sound/soc.h> 26 #include <sound/tlv.h> 27 #include "nau8821.h" 28 29 #define NAU8821_JD_ACTIVE_HIGH BIT(0) 30 31 static int nau8821_quirk; 32 static int quirk_override = -1; 33 module_param_named(quirk, quirk_override, uint, 0444); 34 MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 35 36 #define NAU_FREF_MAX 13500000 37 #define NAU_FVCO_MAX 100000000 38 #define NAU_FVCO_MIN 90000000 39 40 #define NAU8821_BUTTON SND_JACK_BTN_0 41 42 /* the maximum frequency of CLK_ADC and CLK_DAC */ 43 #define CLK_DA_AD_MAX 6144000 44 45 static int nau8821_configure_sysclk(struct nau8821 *nau8821, 46 int clk_id, unsigned int freq); 47 static bool nau8821_is_jack_inserted(struct regmap *regmap); 48 49 struct nau8821_fll { 50 int mclk_src; 51 int ratio; 52 int fll_frac; 53 int fll_int; 54 int clk_ref_div; 55 }; 56 57 struct nau8821_fll_attr { 58 unsigned int param; 59 unsigned int val; 60 }; 61 62 /* scaling for mclk from sysclk_src output */ 63 static const struct nau8821_fll_attr mclk_src_scaling[] = { 64 { 1, 0x0 }, 65 { 2, 0x2 }, 66 { 4, 0x3 }, 67 { 8, 0x4 }, 68 { 16, 0x5 }, 69 { 32, 0x6 }, 70 { 3, 0x7 }, 71 { 6, 0xa }, 72 { 12, 0xb }, 73 { 24, 0xc }, 74 { 48, 0xd }, 75 { 96, 0xe }, 76 { 5, 0xf }, 77 }; 78 79 /* ratio for input clk freq */ 80 static const struct nau8821_fll_attr fll_ratio[] = { 81 { 512000, 0x01 }, 82 { 256000, 0x02 }, 83 { 128000, 0x04 }, 84 { 64000, 0x08 }, 85 { 32000, 0x10 }, 86 { 8000, 0x20 }, 87 { 4000, 0x40 }, 88 }; 89 90 static const struct nau8821_fll_attr fll_pre_scalar[] = { 91 { 0, 0x0 }, 92 { 1, 0x1 }, 93 { 2, 0x2 }, 94 { 3, 0x3 }, 95 }; 96 97 /* over sampling rate */ 98 struct nau8821_osr_attr { 99 unsigned int osr; 100 unsigned int clk_src; 101 }; 102 103 static const struct nau8821_osr_attr osr_dac_sel[] = { 104 { 64, 2 }, /* OSR 64, SRC 1/4 */ 105 { 256, 0 }, /* OSR 256, SRC 1 */ 106 { 128, 1 }, /* OSR 128, SRC 1/2 */ 107 { 0, 0 }, 108 { 32, 3 }, /* OSR 32, SRC 1/8 */ 109 }; 110 111 static const struct nau8821_osr_attr osr_adc_sel[] = { 112 { 32, 3 }, /* OSR 32, SRC 1/8 */ 113 { 64, 2 }, /* OSR 64, SRC 1/4 */ 114 { 128, 1 }, /* OSR 128, SRC 1/2 */ 115 { 256, 0 }, /* OSR 256, SRC 1 */ 116 }; 117 118 struct nau8821_dmic_speed { 119 unsigned int param; 120 unsigned int val; 121 }; 122 123 static const struct nau8821_dmic_speed dmic_speed_sel[] = { 124 { 0, 0x0 }, /*SPEED 1, SRC 1 */ 125 { 1, 0x1 }, /*SPEED 2, SRC 1/2 */ 126 { 2, 0x2 }, /*SPEED 4, SRC 1/4 */ 127 { 3, 0x3 }, /*SPEED 8, SRC 1/8 */ 128 }; 129 130 static const struct reg_default nau8821_reg_defaults[] = { 131 { NAU8821_R01_ENA_CTRL, 0x00ff }, 132 { NAU8821_R03_CLK_DIVIDER, 0x0050 }, 133 { NAU8821_R04_FLL1, 0x0 }, 134 { NAU8821_R05_FLL2, 0x00bc }, 135 { NAU8821_R06_FLL3, 0x0008 }, 136 { NAU8821_R07_FLL4, 0x0010 }, 137 { NAU8821_R08_FLL5, 0x4000 }, 138 { NAU8821_R09_FLL6, 0x6900 }, 139 { NAU8821_R0A_FLL7, 0x0031 }, 140 { NAU8821_R0B_FLL8, 0x26e9 }, 141 { NAU8821_R0D_JACK_DET_CTRL, 0x0 }, 142 { NAU8821_R0F_INTERRUPT_MASK, 0x0 }, 143 { NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff }, 144 { NAU8821_R13_DMIC_CTRL, 0x0 }, 145 { NAU8821_R1A_GPIO12_CTRL, 0x0 }, 146 { NAU8821_R1B_TDM_CTRL, 0x0 }, 147 { NAU8821_R1C_I2S_PCM_CTRL1, 0x000a }, 148 { NAU8821_R1D_I2S_PCM_CTRL2, 0x8010 }, 149 { NAU8821_R1E_LEFT_TIME_SLOT, 0x0 }, 150 { NAU8821_R1F_RIGHT_TIME_SLOT, 0x0 }, 151 { NAU8821_R21_BIQ0_COF1, 0x0 }, 152 { NAU8821_R22_BIQ0_COF2, 0x0 }, 153 { NAU8821_R23_BIQ0_COF3, 0x0 }, 154 { NAU8821_R24_BIQ0_COF4, 0x0 }, 155 { NAU8821_R25_BIQ0_COF5, 0x0 }, 156 { NAU8821_R26_BIQ0_COF6, 0x0 }, 157 { NAU8821_R27_BIQ0_COF7, 0x0 }, 158 { NAU8821_R28_BIQ0_COF8, 0x0 }, 159 { NAU8821_R29_BIQ0_COF9, 0x0 }, 160 { NAU8821_R2A_BIQ0_COF10, 0x0 }, 161 { NAU8821_R2B_ADC_RATE, 0x0002 }, 162 { NAU8821_R2C_DAC_CTRL1, 0x0082 }, 163 { NAU8821_R2D_DAC_CTRL2, 0x0 }, 164 { NAU8821_R2F_DAC_DGAIN_CTRL, 0x0 }, 165 { NAU8821_R30_ADC_DGAIN_CTRL, 0x0 }, 166 { NAU8821_R31_MUTE_CTRL, 0x0 }, 167 { NAU8821_R32_HSVOL_CTRL, 0x0 }, 168 { NAU8821_R34_DACR_CTRL, 0xcfcf }, 169 { NAU8821_R35_ADC_DGAIN_CTRL1, 0xcfcf }, 170 { NAU8821_R36_ADC_DRC_KNEE_IP12, 0x1486 }, 171 { NAU8821_R37_ADC_DRC_KNEE_IP34, 0x0f12 }, 172 { NAU8821_R38_ADC_DRC_SLOPES, 0x25ff }, 173 { NAU8821_R39_ADC_DRC_ATKDCY, 0x3457 }, 174 { NAU8821_R3A_DAC_DRC_KNEE_IP12, 0x1486 }, 175 { NAU8821_R3B_DAC_DRC_KNEE_IP34, 0x0f12 }, 176 { NAU8821_R3C_DAC_DRC_SLOPES, 0x25f9 }, 177 { NAU8821_R3D_DAC_DRC_ATKDCY, 0x3457 }, 178 { NAU8821_R41_BIQ1_COF1, 0x0 }, 179 { NAU8821_R42_BIQ1_COF2, 0x0 }, 180 { NAU8821_R43_BIQ1_COF3, 0x0 }, 181 { NAU8821_R44_BIQ1_COF4, 0x0 }, 182 { NAU8821_R45_BIQ1_COF5, 0x0 }, 183 { NAU8821_R46_BIQ1_COF6, 0x0 }, 184 { NAU8821_R47_BIQ1_COF7, 0x0 }, 185 { NAU8821_R48_BIQ1_COF8, 0x0 }, 186 { NAU8821_R49_BIQ1_COF9, 0x0 }, 187 { NAU8821_R4A_BIQ1_COF10, 0x0 }, 188 { NAU8821_R4B_CLASSG_CTRL, 0x0 }, 189 { NAU8821_R4C_IMM_MODE_CTRL, 0x0 }, 190 { NAU8821_R4D_IMM_RMS_L, 0x0 }, 191 { NAU8821_R53_OTPDOUT_1, 0xaad8 }, 192 { NAU8821_R54_OTPDOUT_2, 0x0002 }, 193 { NAU8821_R55_MISC_CTRL, 0x0 }, 194 { NAU8821_R66_BIAS_ADJ, 0x0 }, 195 { NAU8821_R68_TRIM_SETTINGS, 0x0 }, 196 { NAU8821_R69_ANALOG_CONTROL_1, 0x0 }, 197 { NAU8821_R6A_ANALOG_CONTROL_2, 0x0 }, 198 { NAU8821_R6B_PGA_MUTE, 0x0 }, 199 { NAU8821_R71_ANALOG_ADC_1, 0x0011 }, 200 { NAU8821_R72_ANALOG_ADC_2, 0x0020 }, 201 { NAU8821_R73_RDAC, 0x0008 }, 202 { NAU8821_R74_MIC_BIAS, 0x0006 }, 203 { NAU8821_R76_BOOST, 0x0 }, 204 { NAU8821_R77_FEPGA, 0x0 }, 205 { NAU8821_R7E_PGA_GAIN, 0x0 }, 206 { NAU8821_R7F_POWER_UP_CONTROL, 0x0 }, 207 { NAU8821_R80_CHARGE_PUMP, 0x0 }, 208 }; 209 210 static bool nau8821_readable_reg(struct device *dev, unsigned int reg) 211 { 212 switch (reg) { 213 case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL: 214 case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8: 215 case NAU8821_R0D_JACK_DET_CTRL: 216 case NAU8821_R0F_INTERRUPT_MASK ... NAU8821_R13_DMIC_CTRL: 217 case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT: 218 case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2: 219 case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL: 220 case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY: 221 case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4F_FUSE_CTRL3: 222 case NAU8821_R51_FUSE_CTRL1: 223 case NAU8821_R53_OTPDOUT_1 ... NAU8821_R55_MISC_CTRL: 224 case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST: 225 case NAU8821_R66_BIAS_ADJ: 226 case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE: 227 case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS: 228 case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA: 229 case NAU8821_R7E_PGA_GAIN ... NAU8821_R82_GENERAL_STATUS: 230 return true; 231 default: 232 return false; 233 } 234 } 235 236 static bool nau8821_writeable_reg(struct device *dev, unsigned int reg) 237 { 238 switch (reg) { 239 case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL: 240 case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8: 241 case NAU8821_R0D_JACK_DET_CTRL: 242 case NAU8821_R0F_INTERRUPT_MASK: 243 case NAU8821_R11_INT_CLR_KEY_STATUS ... NAU8821_R13_DMIC_CTRL: 244 case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT: 245 case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2: 246 case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL: 247 case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY: 248 case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4C_IMM_MODE_CTRL: 249 case NAU8821_R4E_FUSE_CTRL2 ... NAU8821_R4F_FUSE_CTRL3: 250 case NAU8821_R51_FUSE_CTRL1: 251 case NAU8821_R55_MISC_CTRL: 252 case NAU8821_R5A_SOFTWARE_RST: 253 case NAU8821_R66_BIAS_ADJ: 254 case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE: 255 case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS: 256 case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA: 257 case NAU8821_R7E_PGA_GAIN ... NAU8821_R80_CHARGE_PUMP: 258 return true; 259 default: 260 return false; 261 } 262 } 263 264 static bool nau8821_volatile_reg(struct device *dev, unsigned int reg) 265 { 266 switch (reg) { 267 case NAU8821_R00_RESET: 268 case NAU8821_R10_IRQ_STATUS ... NAU8821_R11_INT_CLR_KEY_STATUS: 269 case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2A_BIQ0_COF10: 270 case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4A_BIQ1_COF10: 271 case NAU8821_R4D_IMM_RMS_L: 272 case NAU8821_R53_OTPDOUT_1 ... NAU8821_R54_OTPDOUT_2: 273 case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST: 274 case NAU8821_R81_CHARGE_PUMP_INPUT_READ ... NAU8821_R82_GENERAL_STATUS: 275 return true; 276 default: 277 return false; 278 } 279 } 280 281 static int nau8821_biq_coeff_get(struct snd_kcontrol *kcontrol, 282 struct snd_ctl_elem_value *ucontrol) 283 { 284 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 285 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 286 287 if (!component->regmap) 288 return -EINVAL; 289 290 regmap_raw_read(component->regmap, NAU8821_R21_BIQ0_COF1, 291 ucontrol->value.bytes.data, params->max); 292 293 return 0; 294 } 295 296 static int nau8821_biq_coeff_put(struct snd_kcontrol *kcontrol, 297 struct snd_ctl_elem_value *ucontrol) 298 { 299 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 300 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 301 void *data; 302 303 if (!component->regmap) 304 return -EINVAL; 305 306 data = kmemdup(ucontrol->value.bytes.data, 307 params->max, GFP_KERNEL | GFP_DMA); 308 if (!data) 309 return -ENOMEM; 310 311 regmap_raw_write(component->regmap, NAU8821_R21_BIQ0_COF1, 312 data, params->max); 313 314 kfree(data); 315 316 return 0; 317 } 318 319 static const char * const nau8821_adc_decimation[] = { 320 "32", "64", "128", "256" }; 321 322 static const struct soc_enum nau8821_adc_decimation_enum = 323 SOC_ENUM_SINGLE(NAU8821_R2B_ADC_RATE, NAU8821_ADC_SYNC_DOWN_SFT, 324 ARRAY_SIZE(nau8821_adc_decimation), nau8821_adc_decimation); 325 326 static const char * const nau8821_dac_oversampl[] = { 327 "64", "256", "128", "", "32" }; 328 329 static const struct soc_enum nau8821_dac_oversampl_enum = 330 SOC_ENUM_SINGLE(NAU8821_R2C_DAC_CTRL1, NAU8821_DAC_OVERSAMPLE_SFT, 331 ARRAY_SIZE(nau8821_dac_oversampl), nau8821_dac_oversampl); 332 333 static const char * const nau8821_adc_drc_noise_gate[] = { 334 "1:1", "2:1", "4:1", "8:1" }; 335 336 static const struct soc_enum nau8821_adc_drc_noise_gate_enum = 337 SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, NAU8821_DRC_NG_SLP_ADC_SFT, 338 ARRAY_SIZE(nau8821_adc_drc_noise_gate), 339 nau8821_adc_drc_noise_gate); 340 341 static const char * const nau8821_adc_drc_expansion_slope[] = { 342 "1:1", "2:1", "4:1" }; 343 344 static const struct soc_enum nau8821_adc_drc_expansion_slope_enum = 345 SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, NAU8821_DRC_EXP_SLP_ADC_SFT, 346 ARRAY_SIZE(nau8821_adc_drc_expansion_slope), 347 nau8821_adc_drc_expansion_slope); 348 349 static const char * const nau8821_adc_drc_lower_region[] = { 350 "0", "1:2", "1:4", "1:8", "1:16", "", "", "1:1" }; 351 352 static const struct soc_enum nau8821_adc_drc_lower_region_enum = 353 SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, 354 NAU8821_DRC_CMP2_SLP_ADC_SFT, 355 ARRAY_SIZE(nau8821_adc_drc_lower_region), 356 nau8821_adc_drc_lower_region); 357 358 static const char * const nau8821_higher_region[] = { 359 "0", "1:2", "1:4", "1:8", "1:16", "", "", "1:1" }; 360 361 static const struct soc_enum nau8821_higher_region_enum = 362 SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, 363 NAU8821_DRC_CMP1_SLP_ADC_SFT, 364 ARRAY_SIZE(nau8821_higher_region), 365 nau8821_higher_region); 366 367 static const char * const nau8821_limiter_slope[] = { 368 "0", "1:2", "1:4", "1:8", "1:16", "1:32", "1:64", "1:1" }; 369 370 static const struct soc_enum nau8821_limiter_slope_enum = 371 SOC_ENUM_SINGLE(NAU8821_R38_ADC_DRC_SLOPES, 372 NAU8821_DRC_LMT_SLP_ADC_SFT, ARRAY_SIZE(nau8821_limiter_slope), 373 nau8821_limiter_slope); 374 375 static const char * const nau8821_detection_attack_time[] = { 376 "Ts", "3Ts", "7Ts", "15Ts", "31Ts", "63Ts", "127Ts", "255Ts", 377 "", "511Ts" }; 378 379 static const struct soc_enum nau8821_detection_attack_time_enum = 380 SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, 381 NAU8821_DRC_PK_COEF1_ADC_SFT, 382 ARRAY_SIZE(nau8821_detection_attack_time), 383 nau8821_detection_attack_time); 384 385 static const char * const nau8821_detection_release_time[] = { 386 "63Ts", "127Ts", "255Ts", "511Ts", "1023Ts", "2047Ts", "4095Ts", 387 "8191Ts", "", "16383Ts" }; 388 389 static const struct soc_enum nau8821_detection_release_time_enum = 390 SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, 391 NAU8821_DRC_PK_COEF2_ADC_SFT, 392 ARRAY_SIZE(nau8821_detection_release_time), 393 nau8821_detection_release_time); 394 395 static const char * const nau8821_attack_time[] = { 396 "Ts", "3Ts", "7Ts", "15Ts", "31Ts", "63Ts", "127Ts", "255Ts", 397 "511Ts", "1023Ts", "2047Ts", "4095Ts", "8191Ts" }; 398 399 static const struct soc_enum nau8821_attack_time_enum = 400 SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, NAU8821_DRC_ATK_ADC_SFT, 401 ARRAY_SIZE(nau8821_attack_time), nau8821_attack_time); 402 403 static const char * const nau8821_decay_time[] = { 404 "63Ts", "127Ts", "255Ts", "511Ts", "1023Ts", "2047Ts", "4095Ts", 405 "8191Ts", "16383Ts", "32757Ts", "65535Ts" }; 406 407 static const struct soc_enum nau8821_decay_time_enum = 408 SOC_ENUM_SINGLE(NAU8821_R39_ADC_DRC_ATKDCY, NAU8821_DRC_DCY_ADC_SFT, 409 ARRAY_SIZE(nau8821_decay_time), nau8821_decay_time); 410 411 static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -6600, 2400); 412 static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); 413 static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -900, 0); 414 static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -6600, 50, 1); 415 static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); 416 static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -7000, 2400); 417 static const DECLARE_TLV_DB_MINMAX(drc_knee4_tlv, -9800, -3500); 418 static const DECLARE_TLV_DB_MINMAX(drc_knee3_tlv, -8100, -1800); 419 420 static const struct snd_kcontrol_new nau8821_controls[] = { 421 SOC_DOUBLE_TLV("Mic Volume", NAU8821_R35_ADC_DGAIN_CTRL1, 422 NAU8821_ADCL_CH_VOL_SFT, NAU8821_ADCR_CH_VOL_SFT, 423 0xff, 0, adc_vol_tlv), 424 SOC_DOUBLE_TLV("Headphone Bypass Volume", NAU8821_R30_ADC_DGAIN_CTRL, 425 12, 8, 0x0f, 0, sidetone_vol_tlv), 426 SOC_DOUBLE_TLV("Headphone Volume", NAU8821_R32_HSVOL_CTRL, 427 NAU8821_HPL_VOL_SFT, NAU8821_HPR_VOL_SFT, 0x3, 1, hp_vol_tlv), 428 SOC_DOUBLE_TLV("Digital Playback Volume", NAU8821_R34_DACR_CTRL, 429 NAU8821_DACL_CH_VOL_SFT, NAU8821_DACR_CH_VOL_SFT, 430 0xcf, 0, playback_vol_tlv), 431 SOC_DOUBLE_TLV("Frontend PGA Volume", NAU8821_R7E_PGA_GAIN, 432 NAU8821_PGA_GAIN_L_SFT, NAU8821_PGA_GAIN_R_SFT, 433 37, 0, fepga_gain_tlv), 434 SOC_DOUBLE_TLV("Headphone Crosstalk Volume", 435 NAU8821_R2F_DAC_DGAIN_CTRL, 436 0, 8, 0xff, 0, crosstalk_vol_tlv), 437 SOC_SINGLE_TLV("ADC DRC KNEE4", NAU8821_R37_ADC_DRC_KNEE_IP34, 438 NAU8821_DRC_KNEE4_IP_ADC_SFT, 0x3f, 1, drc_knee4_tlv), 439 SOC_SINGLE_TLV("ADC DRC KNEE3", NAU8821_R37_ADC_DRC_KNEE_IP34, 440 NAU8821_DRC_KNEE3_IP_ADC_SFT, 0x3f, 1, drc_knee3_tlv), 441 442 SOC_ENUM("ADC DRC Noise Gate", nau8821_adc_drc_noise_gate_enum), 443 SOC_ENUM("ADC DRC Expansion Slope", nau8821_adc_drc_expansion_slope_enum), 444 SOC_ENUM("ADC DRC Lower Region", nau8821_adc_drc_lower_region_enum), 445 SOC_ENUM("ADC DRC Higher Region", nau8821_higher_region_enum), 446 SOC_ENUM("ADC DRC Limiter Slope", nau8821_limiter_slope_enum), 447 SOC_ENUM("ADC DRC Peak Detection Attack Time", nau8821_detection_attack_time_enum), 448 SOC_ENUM("ADC DRC Peak Detection Release Time", nau8821_detection_release_time_enum), 449 SOC_ENUM("ADC DRC Attack Time", nau8821_attack_time_enum), 450 SOC_ENUM("ADC DRC Decay Time", nau8821_decay_time_enum), 451 SOC_SINGLE("DRC Enable Switch", NAU8821_R36_ADC_DRC_KNEE_IP12, 452 NAU8821_DRC_ENA_ADC_SFT, 1, 0), 453 454 SOC_ENUM("ADC Decimation Rate", nau8821_adc_decimation_enum), 455 SOC_ENUM("DAC Oversampling Rate", nau8821_dac_oversampl_enum), 456 SND_SOC_BYTES_EXT("BIQ Coefficients", 20, 457 nau8821_biq_coeff_get, nau8821_biq_coeff_put), 458 SOC_SINGLE("ADC Phase Switch", NAU8821_R1B_TDM_CTRL, 459 NAU8821_ADCPHS_SFT, 1, 0), 460 }; 461 462 static const struct snd_kcontrol_new nau8821_dmic_mode_switch = 463 SOC_DAPM_SINGLE("Switch", NAU8821_R13_DMIC_CTRL, 464 NAU8821_DMIC_EN_SFT, 1, 0); 465 466 static int dmic_clock_control(struct snd_soc_dapm_widget *w, 467 struct snd_kcontrol *k, int event) 468 { 469 struct snd_soc_component *component = 470 snd_soc_dapm_to_component(w->dapm); 471 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 472 int i, speed_selection = -1, clk_adc_src, clk_adc; 473 unsigned int clk_divider_r03; 474 475 /* The DMIC clock is gotten from adc clock divided by 476 * CLK_DMIC_SRC (1, 2, 4, 8). The clock has to be equal or 477 * less than nau8821->dmic_clk_threshold. 478 */ 479 regmap_read(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, 480 &clk_divider_r03); 481 clk_adc_src = (clk_divider_r03 & NAU8821_CLK_ADC_SRC_MASK) 482 >> NAU8821_CLK_ADC_SRC_SFT; 483 clk_adc = (nau8821->fs * 256) >> clk_adc_src; 484 485 for (i = 0 ; i < 4 ; i++) 486 if ((clk_adc >> dmic_speed_sel[i].param) <= 487 nau8821->dmic_clk_threshold) { 488 speed_selection = dmic_speed_sel[i].val; 489 break; 490 } 491 if (i == 4) 492 return -EINVAL; 493 494 dev_dbg(nau8821->dev, 495 "clk_adc=%d, dmic_clk_threshold = %d, param=%d, val = %d\n", 496 clk_adc, nau8821->dmic_clk_threshold, 497 dmic_speed_sel[i].param, dmic_speed_sel[i].val); 498 regmap_update_bits(nau8821->regmap, NAU8821_R13_DMIC_CTRL, 499 NAU8821_DMIC_SRC_MASK, 500 (speed_selection << NAU8821_DMIC_SRC_SFT)); 501 502 return 0; 503 } 504 505 static int nau8821_left_adc_event(struct snd_soc_dapm_widget *w, 506 struct snd_kcontrol *kcontrol, int event) 507 { 508 struct snd_soc_component *component = 509 snd_soc_dapm_to_component(w->dapm); 510 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 511 512 switch (event) { 513 case SND_SOC_DAPM_POST_PMU: 514 msleep(nau8821->adc_delay); 515 break; 516 case SND_SOC_DAPM_POST_PMD: 517 break; 518 default: 519 return -EINVAL; 520 } 521 522 return 0; 523 } 524 525 static int nau8821_right_adc_event(struct snd_soc_dapm_widget *w, 526 struct snd_kcontrol *kcontrol, int event) 527 { 528 struct snd_soc_component *component = 529 snd_soc_dapm_to_component(w->dapm); 530 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 531 532 switch (event) { 533 case SND_SOC_DAPM_POST_PMU: 534 msleep(nau8821->adc_delay); 535 break; 536 case SND_SOC_DAPM_POST_PMD: 537 break; 538 default: 539 return -EINVAL; 540 } 541 542 return 0; 543 } 544 545 static int nau8821_pump_event(struct snd_soc_dapm_widget *w, 546 struct snd_kcontrol *kcontrol, int event) 547 { 548 struct snd_soc_component *component = 549 snd_soc_dapm_to_component(w->dapm); 550 struct nau8821 *nau8821 = 551 snd_soc_component_get_drvdata(component); 552 553 switch (event) { 554 case SND_SOC_DAPM_POST_PMU: 555 /* Prevent startup click by letting charge pump to ramp up */ 556 msleep(20); 557 regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP, 558 NAU8821_JAMNODCLOW, NAU8821_JAMNODCLOW); 559 break; 560 case SND_SOC_DAPM_PRE_PMD: 561 regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP, 562 NAU8821_JAMNODCLOW, 0); 563 break; 564 default: 565 return -EINVAL; 566 } 567 568 return 0; 569 } 570 571 static int nau8821_output_dac_event(struct snd_soc_dapm_widget *w, 572 struct snd_kcontrol *kcontrol, int event) 573 { 574 struct snd_soc_component *component = 575 snd_soc_dapm_to_component(w->dapm); 576 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 577 578 switch (event) { 579 case SND_SOC_DAPM_PRE_PMU: 580 /* Disables the TESTDAC to let DAC signal pass through. */ 581 regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ, 582 NAU8821_BIAS_TESTDAC_EN, 0); 583 break; 584 case SND_SOC_DAPM_POST_PMD: 585 regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ, 586 NAU8821_BIAS_TESTDAC_EN, NAU8821_BIAS_TESTDAC_EN); 587 break; 588 default: 589 return -EINVAL; 590 } 591 592 return 0; 593 } 594 595 static int system_clock_control(struct snd_soc_dapm_widget *w, 596 struct snd_kcontrol *k, int event) 597 { 598 struct snd_soc_component *component = 599 snd_soc_dapm_to_component(w->dapm); 600 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 601 602 if (SND_SOC_DAPM_EVENT_OFF(event)) { 603 dev_dbg(nau8821->dev, "system clock control : POWER OFF\n"); 604 /* Set clock source to disable or internal clock before the 605 * playback or capture end. Codec needs clock for Jack 606 * detection and button press if jack inserted; otherwise, 607 * the clock should be closed. 608 */ 609 if (nau8821_is_jack_inserted(nau8821->regmap)) { 610 nau8821_configure_sysclk(nau8821, 611 NAU8821_CLK_INTERNAL, 0); 612 } else { 613 nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0); 614 } 615 } 616 return 0; 617 } 618 619 static int nau8821_left_fepga_event(struct snd_soc_dapm_widget *w, 620 struct snd_kcontrol *kcontrol, int event) 621 { 622 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 623 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 624 625 if (!nau8821->left_input_single_end) 626 return 0; 627 628 switch (event) { 629 case SND_SOC_DAPM_POST_PMU: 630 regmap_update_bits(nau8821->regmap, NAU8821_R77_FEPGA, 631 NAU8821_ACDC_CTRL_MASK | NAU8821_FEPGA_MODEL_MASK, 632 NAU8821_ACDC_VREF_MICN | NAU8821_FEPGA_MODEL_AAF); 633 regmap_update_bits(nau8821->regmap, NAU8821_R76_BOOST, 634 NAU8821_HP_BOOST_DISCHRG_EN, NAU8821_HP_BOOST_DISCHRG_EN); 635 break; 636 case SND_SOC_DAPM_POST_PMD: 637 regmap_update_bits(nau8821->regmap, NAU8821_R77_FEPGA, 638 NAU8821_ACDC_CTRL_MASK | NAU8821_FEPGA_MODEL_MASK, 0); 639 regmap_update_bits(nau8821->regmap, NAU8821_R76_BOOST, 640 NAU8821_HP_BOOST_DISCHRG_EN, 0); 641 break; 642 default: 643 break; 644 } 645 646 return 0; 647 } 648 649 static const struct snd_soc_dapm_widget nau8821_dapm_widgets[] = { 650 SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0, 651 system_clock_control, SND_SOC_DAPM_POST_PMD), 652 SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8821_R74_MIC_BIAS, 653 NAU8821_MICBIAS_POWERUP_SFT, 0, NULL, 0), 654 SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0, 655 dmic_clock_control, SND_SOC_DAPM_POST_PMU), 656 SND_SOC_DAPM_ADC("ADCL Power", NULL, NAU8821_R72_ANALOG_ADC_2, 657 NAU8821_POWERUP_ADCL_SFT, 0), 658 SND_SOC_DAPM_ADC("ADCR Power", NULL, NAU8821_R72_ANALOG_ADC_2, 659 NAU8821_POWERUP_ADCR_SFT, 0), 660 /* single-ended design only on the left */ 661 SND_SOC_DAPM_PGA_S("Frontend PGA L", 1, NAU8821_R7F_POWER_UP_CONTROL, 662 NAU8821_PUP_PGA_L_SFT, 0, nau8821_left_fepga_event, 663 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 664 SND_SOC_DAPM_PGA_S("Frontend PGA R", 1, NAU8821_R7F_POWER_UP_CONTROL, 665 NAU8821_PUP_PGA_R_SFT, 0, NULL, 0), 666 SND_SOC_DAPM_PGA_S("ADCL Digital path", 0, NAU8821_R01_ENA_CTRL, 667 NAU8821_EN_ADCL_SFT, 0, nau8821_left_adc_event, 668 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 669 SND_SOC_DAPM_PGA_S("ADCR Digital path", 0, NAU8821_R01_ENA_CTRL, 670 NAU8821_EN_ADCR_SFT, 0, nau8821_right_adc_event, 671 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 672 SND_SOC_DAPM_SWITCH("DMIC Enable", SND_SOC_NOPM, 673 0, 0, &nau8821_dmic_mode_switch), 674 SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, NAU8821_R1D_I2S_PCM_CTRL2, 675 NAU8821_I2S_TRISTATE_SFT, 1), 676 SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0), 677 678 SND_SOC_DAPM_PGA_S("ADACL", 2, NAU8821_R73_RDAC, 679 NAU8821_DACL_EN_SFT, 0, NULL, 0), 680 SND_SOC_DAPM_PGA_S("ADACR", 2, NAU8821_R73_RDAC, 681 NAU8821_DACR_EN_SFT, 0, NULL, 0), 682 SND_SOC_DAPM_PGA_S("ADACL Clock", 3, NAU8821_R73_RDAC, 683 NAU8821_DACL_CLK_EN_SFT, 0, NULL, 0), 684 SND_SOC_DAPM_PGA_S("ADACR Clock", 3, NAU8821_R73_RDAC, 685 NAU8821_DACR_CLK_EN_SFT, 0, NULL, 0), 686 SND_SOC_DAPM_DAC("DDACR", NULL, NAU8821_R01_ENA_CTRL, 687 NAU8821_EN_DACR_SFT, 0), 688 SND_SOC_DAPM_DAC("DDACL", NULL, NAU8821_R01_ENA_CTRL, 689 NAU8821_EN_DACL_SFT, 0), 690 SND_SOC_DAPM_PGA_S("HP amp L", 0, NAU8821_R4B_CLASSG_CTRL, 691 NAU8821_CLASSG_LDAC_EN_SFT, 0, NULL, 0), 692 SND_SOC_DAPM_PGA_S("HP amp R", 0, NAU8821_R4B_CLASSG_CTRL, 693 NAU8821_CLASSG_RDAC_EN_SFT, 0, NULL, 0), 694 SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8821_R80_CHARGE_PUMP, 695 NAU8821_CHANRGE_PUMP_EN_SFT, 0, nau8821_pump_event, 696 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 697 SND_SOC_DAPM_PGA_S("Output Driver R Stage 1", 4, 698 NAU8821_R7F_POWER_UP_CONTROL, 699 NAU8821_PUP_INTEG_R_SFT, 0, NULL, 0), 700 SND_SOC_DAPM_PGA_S("Output Driver L Stage 1", 4, 701 NAU8821_R7F_POWER_UP_CONTROL, 702 NAU8821_PUP_INTEG_L_SFT, 0, NULL, 0), 703 SND_SOC_DAPM_PGA_S("Output Driver R Stage 2", 5, 704 NAU8821_R7F_POWER_UP_CONTROL, 705 NAU8821_PUP_DRV_INSTG_R_SFT, 0, NULL, 0), 706 SND_SOC_DAPM_PGA_S("Output Driver L Stage 2", 5, 707 NAU8821_R7F_POWER_UP_CONTROL, 708 NAU8821_PUP_DRV_INSTG_L_SFT, 0, NULL, 0), 709 SND_SOC_DAPM_PGA_S("Output Driver R Stage 3", 6, 710 NAU8821_R7F_POWER_UP_CONTROL, 711 NAU8821_PUP_MAIN_DRV_R_SFT, 0, NULL, 0), 712 SND_SOC_DAPM_PGA_S("Output Driver L Stage 3", 6, 713 NAU8821_R7F_POWER_UP_CONTROL, 714 NAU8821_PUP_MAIN_DRV_L_SFT, 0, NULL, 0), 715 SND_SOC_DAPM_PGA_S("Output DACL", 7, 716 NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACL_SFT, 717 0, nau8821_output_dac_event, 718 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 719 SND_SOC_DAPM_PGA_S("Output DACR", 7, 720 NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACR_SFT, 721 0, nau8821_output_dac_event, 722 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 723 724 /* HPOL/R are ungrounded by disabling 16 Ohm pull-downs on playback */ 725 SND_SOC_DAPM_PGA_S("HPOL Pulldown", 8, 726 NAU8821_R0D_JACK_DET_CTRL, 727 NAU8821_SPKR_DWN1L_SFT, 0, NULL, 0), 728 SND_SOC_DAPM_PGA_S("HPOR Pulldown", 8, 729 NAU8821_R0D_JACK_DET_CTRL, 730 NAU8821_SPKR_DWN1R_SFT, 0, NULL, 0), 731 732 /* High current HPOL/R boost driver */ 733 SND_SOC_DAPM_PGA_S("HP Boost Driver", 9, 734 NAU8821_R76_BOOST, NAU8821_HP_BOOST_DIS_SFT, 1, NULL, 0), 735 SND_SOC_DAPM_PGA("Class G", NAU8821_R4B_CLASSG_CTRL, 736 NAU8821_CLASSG_EN_SFT, 0, NULL, 0), 737 738 SND_SOC_DAPM_INPUT("MICL"), 739 SND_SOC_DAPM_INPUT("MICR"), 740 SND_SOC_DAPM_INPUT("DMIC"), 741 SND_SOC_DAPM_OUTPUT("HPOL"), 742 SND_SOC_DAPM_OUTPUT("HPOR"), 743 }; 744 745 static const struct snd_soc_dapm_route nau8821_dapm_routes[] = { 746 {"DMIC Enable", "Switch", "DMIC"}, 747 {"DMIC Enable", NULL, "DMIC Clock"}, 748 749 {"Frontend PGA L", NULL, "MICL"}, 750 {"Frontend PGA R", NULL, "MICR"}, 751 {"Frontend PGA L", NULL, "MICBIAS"}, 752 {"Frontend PGA R", NULL, "MICBIAS"}, 753 754 {"ADCL Power", NULL, "Frontend PGA L"}, 755 {"ADCR Power", NULL, "Frontend PGA R"}, 756 757 {"ADCL Digital path", NULL, "ADCL Power"}, 758 {"ADCR Digital path", NULL, "ADCR Power"}, 759 {"ADCL Digital path", NULL, "DMIC Enable"}, 760 {"ADCR Digital path", NULL, "DMIC Enable"}, 761 762 {"AIFTX", NULL, "ADCL Digital path"}, 763 {"AIFTX", NULL, "ADCR Digital path"}, 764 765 {"AIFTX", NULL, "System Clock"}, 766 {"AIFRX", NULL, "System Clock"}, 767 768 {"DDACL", NULL, "AIFRX"}, 769 {"DDACR", NULL, "AIFRX"}, 770 771 {"HP amp L", NULL, "DDACL"}, 772 {"HP amp R", NULL, "DDACR"}, 773 774 {"Charge Pump", NULL, "HP amp L"}, 775 {"Charge Pump", NULL, "HP amp R"}, 776 777 {"ADACL", NULL, "Charge Pump"}, 778 {"ADACR", NULL, "Charge Pump"}, 779 {"ADACL Clock", NULL, "ADACL"}, 780 {"ADACR Clock", NULL, "ADACR"}, 781 782 {"Output Driver L Stage 1", NULL, "ADACL Clock"}, 783 {"Output Driver R Stage 1", NULL, "ADACR Clock"}, 784 {"Output Driver L Stage 2", NULL, "Output Driver L Stage 1"}, 785 {"Output Driver R Stage 2", NULL, "Output Driver R Stage 1"}, 786 {"Output Driver L Stage 3", NULL, "Output Driver L Stage 2"}, 787 {"Output Driver R Stage 3", NULL, "Output Driver R Stage 2"}, 788 {"Output DACL", NULL, "Output Driver L Stage 3"}, 789 {"Output DACR", NULL, "Output Driver R Stage 3"}, 790 791 {"HPOL Pulldown", NULL, "Output DACL"}, 792 {"HPOR Pulldown", NULL, "Output DACR"}, 793 {"HP Boost Driver", NULL, "HPOL Pulldown"}, 794 {"HP Boost Driver", NULL, "HPOR Pulldown"}, 795 796 {"Class G", NULL, "HP Boost Driver"}, 797 {"HPOL", NULL, "Class G"}, 798 {"HPOR", NULL, "Class G"}, 799 }; 800 801 static const struct nau8821_osr_attr * 802 nau8821_get_osr(struct nau8821 *nau8821, int stream) 803 { 804 unsigned int osr; 805 806 if (stream == SNDRV_PCM_STREAM_PLAYBACK) { 807 regmap_read(nau8821->regmap, NAU8821_R2C_DAC_CTRL1, &osr); 808 osr &= NAU8821_DAC_OVERSAMPLE_MASK; 809 if (osr >= ARRAY_SIZE(osr_dac_sel)) 810 return NULL; 811 return &osr_dac_sel[osr]; 812 } else { 813 regmap_read(nau8821->regmap, NAU8821_R2B_ADC_RATE, &osr); 814 osr &= NAU8821_ADC_SYNC_DOWN_MASK; 815 if (osr >= ARRAY_SIZE(osr_adc_sel)) 816 return NULL; 817 return &osr_adc_sel[osr]; 818 } 819 } 820 821 static int nau8821_dai_startup(struct snd_pcm_substream *substream, 822 struct snd_soc_dai *dai) 823 { 824 struct snd_soc_component *component = dai->component; 825 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 826 const struct nau8821_osr_attr *osr; 827 828 osr = nau8821_get_osr(nau8821, substream->stream); 829 if (!osr || !osr->osr) 830 return -EINVAL; 831 832 return snd_pcm_hw_constraint_minmax(substream->runtime, 833 SNDRV_PCM_HW_PARAM_RATE, 834 0, CLK_DA_AD_MAX / osr->osr); 835 } 836 837 static int nau8821_hw_params(struct snd_pcm_substream *substream, 838 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 839 { 840 struct snd_soc_component *component = dai->component; 841 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 842 unsigned int val_len = 0, ctrl_val, bclk_fs, clk_div; 843 const struct nau8821_osr_attr *osr; 844 845 nau8821->fs = params_rate(params); 846 /* CLK_DAC or CLK_ADC = OSR * FS 847 * DAC or ADC clock frequency is defined as Over Sampling Rate (OSR) 848 * multiplied by the audio sample rate (Fs). Note that the OSR and Fs 849 * values must be selected such that the maximum frequency is less 850 * than 6.144 MHz. 851 */ 852 osr = nau8821_get_osr(nau8821, substream->stream); 853 if (!osr || !osr->osr) 854 return -EINVAL; 855 if (nau8821->fs * osr->osr > CLK_DA_AD_MAX) 856 return -EINVAL; 857 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 858 regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, 859 NAU8821_CLK_DAC_SRC_MASK, 860 osr->clk_src << NAU8821_CLK_DAC_SRC_SFT); 861 else 862 regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, 863 NAU8821_CLK_ADC_SRC_MASK, 864 osr->clk_src << NAU8821_CLK_ADC_SRC_SFT); 865 866 /* make BCLK and LRC divde configuration if the codec as master. */ 867 regmap_read(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, &ctrl_val); 868 if (ctrl_val & NAU8821_I2S_MS_MASTER) { 869 /* get the bclk and fs ratio */ 870 bclk_fs = snd_soc_params_to_bclk(params) / nau8821->fs; 871 if (bclk_fs <= 32) 872 clk_div = 3; 873 else if (bclk_fs <= 64) 874 clk_div = 2; 875 else if (bclk_fs <= 128) 876 clk_div = 1; 877 else { 878 return -EINVAL; 879 } 880 regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, 881 NAU8821_I2S_LRC_DIV_MASK | NAU8821_I2S_BLK_DIV_MASK, 882 (clk_div << NAU8821_I2S_LRC_DIV_SFT) | clk_div); 883 } 884 885 switch (params_width(params)) { 886 case 16: 887 val_len |= NAU8821_I2S_DL_16; 888 break; 889 case 20: 890 val_len |= NAU8821_I2S_DL_20; 891 break; 892 case 24: 893 val_len |= NAU8821_I2S_DL_24; 894 break; 895 case 32: 896 val_len |= NAU8821_I2S_DL_32; 897 break; 898 default: 899 return -EINVAL; 900 } 901 902 regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1, 903 NAU8821_I2S_DL_MASK, val_len); 904 905 return 0; 906 } 907 908 static int nau8821_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 909 { 910 struct snd_soc_component *component = codec_dai->component; 911 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 912 unsigned int ctrl1_val = 0, ctrl2_val = 0; 913 914 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 915 case SND_SOC_DAIFMT_CBP_CFP: 916 ctrl2_val |= NAU8821_I2S_MS_MASTER; 917 break; 918 case SND_SOC_DAIFMT_CBC_CFC: 919 break; 920 default: 921 return -EINVAL; 922 } 923 924 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 925 case SND_SOC_DAIFMT_NB_NF: 926 break; 927 case SND_SOC_DAIFMT_IB_NF: 928 ctrl1_val |= NAU8821_I2S_BP_INV; 929 break; 930 default: 931 return -EINVAL; 932 } 933 934 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 935 case SND_SOC_DAIFMT_I2S: 936 ctrl1_val |= NAU8821_I2S_DF_I2S; 937 break; 938 case SND_SOC_DAIFMT_LEFT_J: 939 ctrl1_val |= NAU8821_I2S_DF_LEFT; 940 break; 941 case SND_SOC_DAIFMT_RIGHT_J: 942 ctrl1_val |= NAU8821_I2S_DF_RIGTH; 943 break; 944 case SND_SOC_DAIFMT_DSP_A: 945 ctrl1_val |= NAU8821_I2S_DF_PCM_AB; 946 break; 947 case SND_SOC_DAIFMT_DSP_B: 948 ctrl1_val |= NAU8821_I2S_DF_PCM_AB; 949 ctrl1_val |= NAU8821_I2S_PCMB_EN; 950 break; 951 default: 952 return -EINVAL; 953 } 954 955 regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1, 956 NAU8821_I2S_DL_MASK | NAU8821_I2S_DF_MASK | 957 NAU8821_I2S_BP_MASK | NAU8821_I2S_PCMB_MASK, ctrl1_val); 958 regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, 959 NAU8821_I2S_MS_MASK, ctrl2_val); 960 961 return 0; 962 } 963 964 static int nau8821_digital_mute(struct snd_soc_dai *dai, int mute, 965 int direction) 966 { 967 struct snd_soc_component *component = dai->component; 968 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 969 unsigned int val = 0; 970 971 if (mute) 972 val = NAU8821_DAC_SOFT_MUTE; 973 974 return regmap_update_bits(nau8821->regmap, 975 NAU8821_R31_MUTE_CTRL, NAU8821_DAC_SOFT_MUTE, val); 976 } 977 978 static const struct snd_soc_dai_ops nau8821_dai_ops = { 979 .startup = nau8821_dai_startup, 980 .hw_params = nau8821_hw_params, 981 .set_fmt = nau8821_set_dai_fmt, 982 .mute_stream = nau8821_digital_mute, 983 .no_capture_mute = 1, 984 }; 985 986 #define NAU8821_RATES SNDRV_PCM_RATE_8000_192000 987 #define NAU8821_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \ 988 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 989 990 static struct snd_soc_dai_driver nau8821_dai = { 991 .name = NUVOTON_CODEC_DAI, 992 .playback = { 993 .stream_name = "Playback", 994 .channels_min = 1, 995 .channels_max = 2, 996 .rates = NAU8821_RATES, 997 .formats = NAU8821_FORMATS, 998 }, 999 .capture = { 1000 .stream_name = "Capture", 1001 .channels_min = 1, 1002 .channels_max = 2, 1003 .rates = NAU8821_RATES, 1004 .formats = NAU8821_FORMATS, 1005 }, 1006 .ops = &nau8821_dai_ops, 1007 }; 1008 1009 1010 static bool nau8821_is_jack_inserted(struct regmap *regmap) 1011 { 1012 bool active_high, is_high; 1013 int status, jkdet; 1014 1015 regmap_read(regmap, NAU8821_R0D_JACK_DET_CTRL, &jkdet); 1016 active_high = jkdet & NAU8821_JACK_POLARITY; 1017 regmap_read(regmap, NAU8821_R82_GENERAL_STATUS, &status); 1018 is_high = status & NAU8821_GPIO2_IN; 1019 /* return jack connection status according to jack insertion logic 1020 * active high or active low. 1021 */ 1022 return active_high == is_high; 1023 } 1024 1025 static void nau8821_int_status_clear_all(struct regmap *regmap) 1026 { 1027 int active_irq, clear_irq, i; 1028 1029 /* Reset the intrruption status from rightmost bit if the corres- 1030 * ponding irq event occurs. 1031 */ 1032 regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq); 1033 for (i = 0; i < NAU8821_REG_DATA_LEN; i++) { 1034 clear_irq = (0x1 << i); 1035 if (active_irq & clear_irq) 1036 regmap_write(regmap, 1037 NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq); 1038 } 1039 } 1040 1041 static void nau8821_eject_jack(struct nau8821 *nau8821) 1042 { 1043 struct snd_soc_dapm_context *dapm = nau8821->dapm; 1044 struct regmap *regmap = nau8821->regmap; 1045 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm); 1046 1047 /* Detach 2kOhm Resistors from MICBIAS to MICGND */ 1048 regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, 1049 NAU8821_MICBIAS_JKR2, 0); 1050 /* HPL/HPR short to ground */ 1051 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1052 NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0); 1053 snd_soc_component_disable_pin(component, "MICBIAS"); 1054 snd_soc_dapm_sync(dapm); 1055 1056 /* Clear all interruption status */ 1057 nau8821_int_status_clear_all(regmap); 1058 1059 /* Enable the insertion interruption, disable the ejection inter- 1060 * ruption, and then bypass de-bounce circuit. 1061 */ 1062 regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, 1063 NAU8821_IRQ_EJECT_DIS | NAU8821_IRQ_INSERT_DIS, 1064 NAU8821_IRQ_EJECT_DIS); 1065 /* Mask unneeded IRQs: 1 - disable, 0 - enable */ 1066 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1067 NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, 1068 NAU8821_IRQ_EJECT_EN); 1069 1070 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1071 NAU8821_JACK_DET_DB_BYPASS, NAU8821_JACK_DET_DB_BYPASS); 1072 1073 /* Close clock for jack type detection at manual mode */ 1074 if (dapm->bias_level < SND_SOC_BIAS_PREPARE) 1075 nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0); 1076 1077 /* Recover to normal channel input */ 1078 regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, 1079 NAU8821_ADC_R_SRC_EN, 0); 1080 if (nau8821->key_enable) { 1081 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1082 NAU8821_IRQ_KEY_RELEASE_EN | 1083 NAU8821_IRQ_KEY_PRESS_EN, 1084 NAU8821_IRQ_KEY_RELEASE_EN | 1085 NAU8821_IRQ_KEY_PRESS_EN); 1086 regmap_update_bits(regmap, 1087 NAU8821_R12_INTERRUPT_DIS_CTRL, 1088 NAU8821_IRQ_KEY_RELEASE_DIS | 1089 NAU8821_IRQ_KEY_PRESS_DIS, 1090 NAU8821_IRQ_KEY_RELEASE_DIS | 1091 NAU8821_IRQ_KEY_PRESS_DIS); 1092 } 1093 1094 } 1095 1096 static void nau8821_jdet_work(struct work_struct *work) 1097 { 1098 struct nau8821 *nau8821 = 1099 container_of(work, struct nau8821, jdet_work); 1100 struct snd_soc_dapm_context *dapm = nau8821->dapm; 1101 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm); 1102 struct regmap *regmap = nau8821->regmap; 1103 int jack_status_reg, mic_detected, event = 0, event_mask = 0; 1104 1105 snd_soc_component_force_enable_pin(component, "MICBIAS"); 1106 snd_soc_dapm_sync(dapm); 1107 msleep(20); 1108 1109 regmap_read(regmap, NAU8821_R58_I2C_DEVICE_ID, &jack_status_reg); 1110 mic_detected = !(jack_status_reg & NAU8821_KEYDET); 1111 if (mic_detected) { 1112 dev_dbg(nau8821->dev, "Headset connected\n"); 1113 event |= SND_JACK_HEADSET; 1114 1115 /* 2kOhm Resistor from MICBIAS to MICGND1 */ 1116 regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, 1117 NAU8821_MICBIAS_JKR2, NAU8821_MICBIAS_JKR2); 1118 /* Latch Right Channel Analog data 1119 * input into the Right Channel Filter 1120 */ 1121 regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, 1122 NAU8821_ADC_R_SRC_EN, NAU8821_ADC_R_SRC_EN); 1123 if (nau8821->key_enable) { 1124 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1125 NAU8821_IRQ_KEY_RELEASE_EN | 1126 NAU8821_IRQ_KEY_PRESS_EN, 0); 1127 regmap_update_bits(regmap, 1128 NAU8821_R12_INTERRUPT_DIS_CTRL, 1129 NAU8821_IRQ_KEY_RELEASE_DIS | 1130 NAU8821_IRQ_KEY_PRESS_DIS, 0); 1131 } else { 1132 snd_soc_component_disable_pin(component, "MICBIAS"); 1133 snd_soc_dapm_sync(nau8821->dapm); 1134 } 1135 } else { 1136 dev_dbg(nau8821->dev, "Headphone connected\n"); 1137 event |= SND_JACK_HEADPHONE; 1138 snd_soc_component_disable_pin(component, "MICBIAS"); 1139 snd_soc_dapm_sync(dapm); 1140 } 1141 event_mask |= SND_JACK_HEADSET; 1142 snd_soc_jack_report(nau8821->jack, event, event_mask); 1143 } 1144 1145 /* Enable interruptions with internal clock. */ 1146 static void nau8821_setup_inserted_irq(struct nau8821 *nau8821) 1147 { 1148 struct regmap *regmap = nau8821->regmap; 1149 1150 /* Enable internal VCO needed for interruptions */ 1151 if (nau8821->dapm->bias_level < SND_SOC_BIAS_PREPARE) 1152 nau8821_configure_sysclk(nau8821, NAU8821_CLK_INTERNAL, 0); 1153 1154 /* Chip needs one FSCLK cycle in order to generate interruptions, 1155 * as we cannot guarantee one will be provided by the system. Turning 1156 * master mode on then off enables us to generate that FSCLK cycle 1157 * with a minimum of contention on the clock bus. 1158 */ 1159 regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2, 1160 NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_MASTER); 1161 regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2, 1162 NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_SLAVE); 1163 1164 /* Not bypass de-bounce circuit */ 1165 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1166 NAU8821_JACK_DET_DB_BYPASS, 0); 1167 1168 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1169 NAU8821_IRQ_EJECT_EN, 0); 1170 regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, 1171 NAU8821_IRQ_EJECT_DIS, 0); 1172 } 1173 1174 static irqreturn_t nau8821_interrupt(int irq, void *data) 1175 { 1176 struct nau8821 *nau8821 = (struct nau8821 *)data; 1177 struct regmap *regmap = nau8821->regmap; 1178 int active_irq, clear_irq = 0, event = 0, event_mask = 0; 1179 1180 if (regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq)) { 1181 dev_err(nau8821->dev, "failed to read irq status\n"); 1182 return IRQ_NONE; 1183 } 1184 1185 dev_dbg(nau8821->dev, "IRQ %d\n", active_irq); 1186 1187 if ((active_irq & NAU8821_JACK_EJECT_IRQ_MASK) == 1188 NAU8821_JACK_EJECT_DETECTED) { 1189 regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1, 1190 NAU8821_MICDET_MASK, NAU8821_MICDET_DIS); 1191 nau8821_eject_jack(nau8821); 1192 event_mask |= SND_JACK_HEADSET; 1193 clear_irq = NAU8821_JACK_EJECT_IRQ_MASK; 1194 } else if (active_irq & NAU8821_KEY_SHORT_PRESS_IRQ) { 1195 event |= NAU8821_BUTTON; 1196 event_mask |= NAU8821_BUTTON; 1197 clear_irq = NAU8821_KEY_SHORT_PRESS_IRQ; 1198 } else if (active_irq & NAU8821_KEY_RELEASE_IRQ) { 1199 event_mask = NAU8821_BUTTON; 1200 clear_irq = NAU8821_KEY_RELEASE_IRQ; 1201 } else if ((active_irq & NAU8821_JACK_INSERT_IRQ_MASK) == 1202 NAU8821_JACK_INSERT_DETECTED) { 1203 regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1, 1204 NAU8821_MICDET_MASK, NAU8821_MICDET_EN); 1205 if (nau8821_is_jack_inserted(regmap)) { 1206 /* detect microphone and jack type */ 1207 cancel_work_sync(&nau8821->jdet_work); 1208 schedule_work(&nau8821->jdet_work); 1209 /* Turn off insertion interruption at manual mode */ 1210 regmap_update_bits(regmap, 1211 NAU8821_R12_INTERRUPT_DIS_CTRL, 1212 NAU8821_IRQ_INSERT_DIS, 1213 NAU8821_IRQ_INSERT_DIS); 1214 regmap_update_bits(regmap, 1215 NAU8821_R0F_INTERRUPT_MASK, 1216 NAU8821_IRQ_INSERT_EN, 1217 NAU8821_IRQ_INSERT_EN); 1218 nau8821_setup_inserted_irq(nau8821); 1219 } else { 1220 dev_warn(nau8821->dev, 1221 "Inserted IRQ fired but not connected\n"); 1222 nau8821_eject_jack(nau8821); 1223 } 1224 } 1225 1226 if (!clear_irq) 1227 clear_irq = active_irq; 1228 /* clears the rightmost interruption */ 1229 regmap_write(regmap, NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq); 1230 1231 if (event_mask) 1232 snd_soc_jack_report(nau8821->jack, event, event_mask); 1233 1234 return IRQ_HANDLED; 1235 } 1236 1237 static const struct regmap_config nau8821_regmap_config = { 1238 .val_bits = NAU8821_REG_DATA_LEN, 1239 .reg_bits = NAU8821_REG_ADDR_LEN, 1240 1241 .max_register = NAU8821_REG_MAX, 1242 .readable_reg = nau8821_readable_reg, 1243 .writeable_reg = nau8821_writeable_reg, 1244 .volatile_reg = nau8821_volatile_reg, 1245 1246 .cache_type = REGCACHE_RBTREE, 1247 .reg_defaults = nau8821_reg_defaults, 1248 .num_reg_defaults = ARRAY_SIZE(nau8821_reg_defaults), 1249 }; 1250 1251 static int nau8821_component_probe(struct snd_soc_component *component) 1252 { 1253 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1254 struct snd_soc_dapm_context *dapm = 1255 snd_soc_component_get_dapm(component); 1256 1257 nau8821->dapm = dapm; 1258 1259 return 0; 1260 } 1261 1262 /** 1263 * nau8821_calc_fll_param - Calculate FLL parameters. 1264 * @fll_in: external clock provided to codec. 1265 * @fs: sampling rate. 1266 * @fll_param: Pointer to structure of FLL parameters. 1267 * 1268 * Calculate FLL parameters to configure codec. 1269 * 1270 * Returns 0 for success or negative error code. 1271 */ 1272 static int nau8821_calc_fll_param(unsigned int fll_in, 1273 unsigned int fs, struct nau8821_fll *fll_param) 1274 { 1275 u64 fvco, fvco_max; 1276 unsigned int fref, i, fvco_sel; 1277 1278 /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by 1279 * dividing freq_in by 1, 2, 4, or 8 using FLL pre-scalar. 1280 * FREF = freq_in / NAU8821_FLL_REF_DIV_MASK 1281 */ 1282 for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) { 1283 fref = fll_in >> fll_pre_scalar[i].param; 1284 if (fref <= NAU_FREF_MAX) 1285 break; 1286 } 1287 if (i == ARRAY_SIZE(fll_pre_scalar)) 1288 return -EINVAL; 1289 fll_param->clk_ref_div = fll_pre_scalar[i].val; 1290 1291 /* Choose the FLL ratio based on FREF */ 1292 for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) { 1293 if (fref >= fll_ratio[i].param) 1294 break; 1295 } 1296 if (i == ARRAY_SIZE(fll_ratio)) 1297 return -EINVAL; 1298 fll_param->ratio = fll_ratio[i].val; 1299 1300 /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs. 1301 * FDCO must be within the 90MHz - 100MHz or the FFL cannot be 1302 * guaranteed across the full range of operation. 1303 * FDCO = freq_out * 2 * mclk_src_scaling 1304 */ 1305 fvco_max = 0; 1306 fvco_sel = ARRAY_SIZE(mclk_src_scaling); 1307 for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) { 1308 fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param; 1309 if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX && 1310 fvco_max < fvco) { 1311 fvco_max = fvco; 1312 fvco_sel = i; 1313 } 1314 } 1315 if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel) 1316 return -EINVAL; 1317 fll_param->mclk_src = mclk_src_scaling[fvco_sel].val; 1318 1319 /* Calculate the FLL 10-bit integer input and the FLL 24-bit fractional 1320 * input based on FDCO, FREF and FLL ratio. 1321 */ 1322 fvco = div_u64(fvco_max << 24, fref * fll_param->ratio); 1323 fll_param->fll_int = (fvco >> 24) & 0x3ff; 1324 fll_param->fll_frac = fvco & 0xffffff; 1325 1326 return 0; 1327 } 1328 1329 static void nau8821_fll_apply(struct nau8821 *nau8821, 1330 struct nau8821_fll *fll_param) 1331 { 1332 struct regmap *regmap = nau8821->regmap; 1333 1334 regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, 1335 NAU8821_CLK_SRC_MASK | NAU8821_CLK_MCLK_SRC_MASK, 1336 NAU8821_CLK_SRC_MCLK | fll_param->mclk_src); 1337 /* Make DSP operate at high speed for better performance. */ 1338 regmap_update_bits(regmap, NAU8821_R04_FLL1, 1339 NAU8821_FLL_RATIO_MASK | NAU8821_ICTRL_LATCH_MASK, 1340 fll_param->ratio | (0x6 << NAU8821_ICTRL_LATCH_SFT)); 1341 /* FLL 24-bit fractional input */ 1342 regmap_write(regmap, NAU8821_R0A_FLL7, 1343 (fll_param->fll_frac >> 16) & 0xff); 1344 regmap_write(regmap, NAU8821_R0B_FLL8, fll_param->fll_frac & 0xffff); 1345 /* FLL 10-bit integer input */ 1346 regmap_update_bits(regmap, NAU8821_R06_FLL3, 1347 NAU8821_FLL_INTEGER_MASK, fll_param->fll_int); 1348 /* FLL pre-scaler */ 1349 regmap_update_bits(regmap, NAU8821_R07_FLL4, 1350 NAU8821_HIGHBW_EN | NAU8821_FLL_REF_DIV_MASK, 1351 NAU8821_HIGHBW_EN | 1352 (fll_param->clk_ref_div << NAU8821_FLL_REF_DIV_SFT)); 1353 /* select divided VCO input */ 1354 regmap_update_bits(regmap, NAU8821_R08_FLL5, 1355 NAU8821_FLL_CLK_SW_MASK, NAU8821_FLL_CLK_SW_REF); 1356 /* Disable free-running mode */ 1357 regmap_update_bits(regmap, 1358 NAU8821_R09_FLL6, NAU8821_DCO_EN, 0); 1359 if (fll_param->fll_frac) { 1360 /* set FLL loop filter enable and cutoff frequency at 500Khz */ 1361 regmap_update_bits(regmap, NAU8821_R08_FLL5, 1362 NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | 1363 NAU8821_FLL_FTR_SW_MASK, 1364 NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | 1365 NAU8821_FLL_FTR_SW_FILTER); 1366 regmap_update_bits(regmap, NAU8821_R09_FLL6, 1367 NAU8821_SDM_EN | NAU8821_CUTOFF500, 1368 NAU8821_SDM_EN | NAU8821_CUTOFF500); 1369 } else { 1370 /* disable FLL loop filter and cutoff frequency */ 1371 regmap_update_bits(regmap, NAU8821_R08_FLL5, 1372 NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | 1373 NAU8821_FLL_FTR_SW_MASK, NAU8821_FLL_FTR_SW_ACCU); 1374 regmap_update_bits(regmap, NAU8821_R09_FLL6, 1375 NAU8821_SDM_EN | NAU8821_CUTOFF500, 0); 1376 } 1377 } 1378 1379 /** 1380 * nau8821_set_fll - FLL configuration of nau8821 1381 * @component: codec component 1382 * @pll_id: PLL requested 1383 * @source: clock source 1384 * @freq_in: frequency of input clock source 1385 * @freq_out: must be 256*Fs in order to achieve the best performance 1386 * 1387 * The FLL function can select BCLK or MCLK as the input clock source. 1388 * 1389 * Returns 0 if the parameters have been applied successfully 1390 * or negative error code. 1391 */ 1392 static int nau8821_set_fll(struct snd_soc_component *component, 1393 int pll_id, int source, unsigned int freq_in, unsigned int freq_out) 1394 { 1395 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1396 struct nau8821_fll fll_set_param, *fll_param = &fll_set_param; 1397 int ret, fs; 1398 1399 fs = freq_out >> 8; 1400 ret = nau8821_calc_fll_param(freq_in, fs, fll_param); 1401 if (ret) { 1402 dev_err(nau8821->dev, 1403 "Unsupported input clock %d to output clock %d\n", 1404 freq_in, freq_out); 1405 return ret; 1406 } 1407 dev_dbg(nau8821->dev, 1408 "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n", 1409 fll_param->mclk_src, fll_param->ratio, fll_param->fll_frac, 1410 fll_param->fll_int, fll_param->clk_ref_div); 1411 1412 nau8821_fll_apply(nau8821, fll_param); 1413 mdelay(2); 1414 regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, 1415 NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO); 1416 1417 return 0; 1418 } 1419 1420 static void nau8821_configure_mclk_as_sysclk(struct regmap *regmap) 1421 { 1422 regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, 1423 NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_MCLK); 1424 regmap_update_bits(regmap, NAU8821_R09_FLL6, 1425 NAU8821_DCO_EN, 0); 1426 /* Make DSP operate as default setting for power saving. */ 1427 regmap_update_bits(regmap, NAU8821_R04_FLL1, 1428 NAU8821_ICTRL_LATCH_MASK, 0); 1429 } 1430 1431 static int nau8821_configure_sysclk(struct nau8821 *nau8821, 1432 int clk_id, unsigned int freq) 1433 { 1434 struct regmap *regmap = nau8821->regmap; 1435 1436 switch (clk_id) { 1437 case NAU8821_CLK_DIS: 1438 /* Clock provided externally and disable internal VCO clock */ 1439 nau8821_configure_mclk_as_sysclk(regmap); 1440 break; 1441 case NAU8821_CLK_MCLK: 1442 nau8821_configure_mclk_as_sysclk(regmap); 1443 /* MCLK not changed by clock tree */ 1444 regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, 1445 NAU8821_CLK_MCLK_SRC_MASK, 0); 1446 break; 1447 case NAU8821_CLK_INTERNAL: 1448 if (nau8821_is_jack_inserted(regmap)) { 1449 regmap_update_bits(regmap, NAU8821_R09_FLL6, 1450 NAU8821_DCO_EN, NAU8821_DCO_EN); 1451 regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, 1452 NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO); 1453 /* Decrease the VCO frequency and make DSP operate 1454 * as default setting for power saving. 1455 */ 1456 regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, 1457 NAU8821_CLK_MCLK_SRC_MASK, 0xf); 1458 regmap_update_bits(regmap, NAU8821_R04_FLL1, 1459 NAU8821_ICTRL_LATCH_MASK | 1460 NAU8821_FLL_RATIO_MASK, 0x10); 1461 regmap_update_bits(regmap, NAU8821_R09_FLL6, 1462 NAU8821_SDM_EN, NAU8821_SDM_EN); 1463 } 1464 break; 1465 case NAU8821_CLK_FLL_MCLK: 1466 /* Higher FLL reference input frequency can only set lower 1467 * gain error, such as 0000 for input reference from MCLK 1468 * 12.288Mhz. 1469 */ 1470 regmap_update_bits(regmap, NAU8821_R06_FLL3, 1471 NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, 1472 NAU8821_FLL_CLK_SRC_MCLK | 0); 1473 break; 1474 case NAU8821_CLK_FLL_BLK: 1475 /* If FLL reference input is from low frequency source, 1476 * higher error gain can apply such as 0xf which has 1477 * the most sensitive gain error correction threshold, 1478 * Therefore, FLL has the most accurate DCO to 1479 * target frequency. 1480 */ 1481 regmap_update_bits(regmap, NAU8821_R06_FLL3, 1482 NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, 1483 NAU8821_FLL_CLK_SRC_BLK | 1484 (0xf << NAU8821_GAIN_ERR_SFT)); 1485 break; 1486 case NAU8821_CLK_FLL_FS: 1487 /* If FLL reference input is from low frequency source, 1488 * higher error gain can apply such as 0xf which has 1489 * the most sensitive gain error correction threshold, 1490 * Therefore, FLL has the most accurate DCO to 1491 * target frequency. 1492 */ 1493 regmap_update_bits(regmap, NAU8821_R06_FLL3, 1494 NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, 1495 NAU8821_FLL_CLK_SRC_FS | 1496 (0xf << NAU8821_GAIN_ERR_SFT)); 1497 break; 1498 default: 1499 dev_err(nau8821->dev, "Invalid clock id (%d)\n", clk_id); 1500 return -EINVAL; 1501 } 1502 nau8821->clk_id = clk_id; 1503 dev_dbg(nau8821->dev, "Sysclk is %dHz and clock id is %d\n", freq, 1504 nau8821->clk_id); 1505 1506 return 0; 1507 } 1508 1509 static int nau8821_set_sysclk(struct snd_soc_component *component, int clk_id, 1510 int source, unsigned int freq, int dir) 1511 { 1512 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1513 1514 return nau8821_configure_sysclk(nau8821, clk_id, freq); 1515 } 1516 1517 static int nau8821_resume_setup(struct nau8821 *nau8821) 1518 { 1519 struct regmap *regmap = nau8821->regmap; 1520 1521 /* Close clock when jack type detection at manual mode */ 1522 nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0); 1523 if (nau8821->irq) { 1524 /* Clear all interruption status */ 1525 nau8821_int_status_clear_all(regmap); 1526 1527 /* Enable both insertion and ejection interruptions, and then 1528 * bypass de-bounce circuit. 1529 */ 1530 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1531 NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, 0); 1532 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1533 NAU8821_JACK_DET_DB_BYPASS, 1534 NAU8821_JACK_DET_DB_BYPASS); 1535 regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, 1536 NAU8821_IRQ_INSERT_DIS | NAU8821_IRQ_EJECT_DIS, 0); 1537 } 1538 1539 return 0; 1540 } 1541 1542 static int nau8821_set_bias_level(struct snd_soc_component *component, 1543 enum snd_soc_bias_level level) 1544 { 1545 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1546 struct regmap *regmap = nau8821->regmap; 1547 1548 switch (level) { 1549 case SND_SOC_BIAS_ON: 1550 break; 1551 1552 case SND_SOC_BIAS_PREPARE: 1553 break; 1554 1555 case SND_SOC_BIAS_STANDBY: 1556 /* Setup codec configuration after resume */ 1557 if (snd_soc_component_get_bias_level(component) == 1558 SND_SOC_BIAS_OFF) 1559 nau8821_resume_setup(nau8821); 1560 break; 1561 1562 case SND_SOC_BIAS_OFF: 1563 /* HPL/HPR short to ground */ 1564 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1565 NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0); 1566 if (nau8821->irq) { 1567 /* Reset the configuration of jack type for detection. 1568 * Detach 2kOhm Resistors from MICBIAS to MICGND1/2. 1569 */ 1570 regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, 1571 NAU8821_MICBIAS_JKR2, 0); 1572 /* Turn off all interruptions before system shutdown. 1573 * Keep theinterruption quiet before resume 1574 * setup completes. 1575 */ 1576 regmap_write(regmap, 1577 NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff); 1578 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1579 NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, 1580 NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN); 1581 } 1582 break; 1583 default: 1584 break; 1585 } 1586 1587 return 0; 1588 } 1589 1590 static int __maybe_unused nau8821_suspend(struct snd_soc_component *component) 1591 { 1592 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1593 1594 if (nau8821->irq) 1595 disable_irq(nau8821->irq); 1596 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); 1597 /* Power down codec power; don't support button wakeup */ 1598 snd_soc_component_disable_pin(component, "MICBIAS"); 1599 snd_soc_dapm_sync(nau8821->dapm); 1600 regcache_cache_only(nau8821->regmap, true); 1601 regcache_mark_dirty(nau8821->regmap); 1602 1603 return 0; 1604 } 1605 1606 static int __maybe_unused nau8821_resume(struct snd_soc_component *component) 1607 { 1608 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1609 1610 regcache_cache_only(nau8821->regmap, false); 1611 regcache_sync(nau8821->regmap); 1612 if (nau8821->irq) 1613 enable_irq(nau8821->irq); 1614 1615 return 0; 1616 } 1617 1618 static const struct snd_soc_component_driver nau8821_component_driver = { 1619 .probe = nau8821_component_probe, 1620 .set_sysclk = nau8821_set_sysclk, 1621 .set_pll = nau8821_set_fll, 1622 .set_bias_level = nau8821_set_bias_level, 1623 .suspend = nau8821_suspend, 1624 .resume = nau8821_resume, 1625 .controls = nau8821_controls, 1626 .num_controls = ARRAY_SIZE(nau8821_controls), 1627 .dapm_widgets = nau8821_dapm_widgets, 1628 .num_dapm_widgets = ARRAY_SIZE(nau8821_dapm_widgets), 1629 .dapm_routes = nau8821_dapm_routes, 1630 .num_dapm_routes = ARRAY_SIZE(nau8821_dapm_routes), 1631 .suspend_bias_off = 1, 1632 .idle_bias_on = 1, 1633 .use_pmdown_time = 1, 1634 .endianness = 1, 1635 }; 1636 1637 /** 1638 * nau8821_enable_jack_detect - Specify a jack for event reporting 1639 * 1640 * @component: component to register the jack with 1641 * @jack: jack to use to report headset and button events on 1642 * 1643 * After this function has been called the headset insert/remove and button 1644 * events will be routed to the given jack. Jack can be null to stop 1645 * reporting. 1646 */ 1647 int nau8821_enable_jack_detect(struct snd_soc_component *component, 1648 struct snd_soc_jack *jack) 1649 { 1650 struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); 1651 int ret; 1652 1653 nau8821->jack = jack; 1654 /* Initiate jack detection work queue */ 1655 INIT_WORK(&nau8821->jdet_work, nau8821_jdet_work); 1656 ret = devm_request_threaded_irq(nau8821->dev, nau8821->irq, NULL, 1657 nau8821_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, 1658 "nau8821", nau8821); 1659 if (ret) { 1660 dev_err(nau8821->dev, "Cannot request irq %d (%d)\n", 1661 nau8821->irq, ret); 1662 return ret; 1663 } 1664 1665 return ret; 1666 } 1667 EXPORT_SYMBOL_GPL(nau8821_enable_jack_detect); 1668 1669 static void nau8821_reset_chip(struct regmap *regmap) 1670 { 1671 regmap_write(regmap, NAU8821_R00_RESET, 0xffff); 1672 regmap_write(regmap, NAU8821_R00_RESET, 0xffff); 1673 } 1674 1675 static void nau8821_print_device_properties(struct nau8821 *nau8821) 1676 { 1677 struct device *dev = nau8821->dev; 1678 1679 dev_dbg(dev, "jkdet-enable: %d\n", nau8821->jkdet_enable); 1680 dev_dbg(dev, "jkdet-pull-enable: %d\n", nau8821->jkdet_pull_enable); 1681 dev_dbg(dev, "jkdet-pull-up: %d\n", nau8821->jkdet_pull_up); 1682 dev_dbg(dev, "jkdet-polarity: %d\n", nau8821->jkdet_polarity); 1683 dev_dbg(dev, "micbias-voltage: %d\n", nau8821->micbias_voltage); 1684 dev_dbg(dev, "vref-impedance: %d\n", nau8821->vref_impedance); 1685 dev_dbg(dev, "jack-insert-debounce: %d\n", 1686 nau8821->jack_insert_debounce); 1687 dev_dbg(dev, "jack-eject-debounce: %d\n", 1688 nau8821->jack_eject_debounce); 1689 dev_dbg(dev, "dmic-clk-threshold: %d\n", 1690 nau8821->dmic_clk_threshold); 1691 dev_dbg(dev, "key_enable: %d\n", nau8821->key_enable); 1692 dev_dbg(dev, "adc-delay-ms: %d\n", nau8821->adc_delay); 1693 } 1694 1695 static int nau8821_read_device_properties(struct device *dev, 1696 struct nau8821 *nau8821) 1697 { 1698 int ret; 1699 1700 nau8821->jkdet_enable = device_property_read_bool(dev, 1701 "nuvoton,jkdet-enable"); 1702 nau8821->jkdet_pull_enable = device_property_read_bool(dev, 1703 "nuvoton,jkdet-pull-enable"); 1704 nau8821->jkdet_pull_up = device_property_read_bool(dev, 1705 "nuvoton,jkdet-pull-up"); 1706 nau8821->key_enable = device_property_read_bool(dev, 1707 "nuvoton,key-enable"); 1708 nau8821->left_input_single_end = device_property_read_bool(dev, 1709 "nuvoton,left-input-single-end"); 1710 ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity", 1711 &nau8821->jkdet_polarity); 1712 if (ret) 1713 nau8821->jkdet_polarity = 1; 1714 ret = device_property_read_u32(dev, "nuvoton,micbias-voltage", 1715 &nau8821->micbias_voltage); 1716 if (ret) 1717 nau8821->micbias_voltage = 6; 1718 ret = device_property_read_u32(dev, "nuvoton,vref-impedance", 1719 &nau8821->vref_impedance); 1720 if (ret) 1721 nau8821->vref_impedance = 2; 1722 ret = device_property_read_u32(dev, "nuvoton,jack-insert-debounce", 1723 &nau8821->jack_insert_debounce); 1724 if (ret) 1725 nau8821->jack_insert_debounce = 7; 1726 ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce", 1727 &nau8821->jack_eject_debounce); 1728 if (ret) 1729 nau8821->jack_eject_debounce = 0; 1730 ret = device_property_read_u32(dev, "nuvoton,dmic-clk-threshold", 1731 &nau8821->dmic_clk_threshold); 1732 if (ret) 1733 nau8821->dmic_clk_threshold = 3072000; 1734 ret = device_property_read_u32(dev, "nuvoton,dmic-slew-rate", 1735 &nau8821->dmic_slew_rate); 1736 if (ret) 1737 nau8821->dmic_slew_rate = 0; 1738 ret = device_property_read_u32(dev, "nuvoton,adc-delay-ms", 1739 &nau8821->adc_delay); 1740 if (ret) 1741 nau8821->adc_delay = 125; 1742 if (nau8821->adc_delay < 125 || nau8821->adc_delay > 500) 1743 dev_warn(dev, "Please set the suitable delay time!\n"); 1744 1745 return 0; 1746 } 1747 1748 static void nau8821_init_regs(struct nau8821 *nau8821) 1749 { 1750 struct regmap *regmap = nau8821->regmap; 1751 1752 /* Enable Bias/Vmid */ 1753 regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ, 1754 NAU8821_BIAS_VMID, NAU8821_BIAS_VMID); 1755 regmap_update_bits(regmap, NAU8821_R76_BOOST, 1756 NAU8821_GLOBAL_BIAS_EN, NAU8821_GLOBAL_BIAS_EN); 1757 /* VMID Tieoff setting and enable TESTDAC. 1758 * This sets the analog DAC inputs to a '0' input signal to avoid 1759 * any glitches due to power up transients in both the analog and 1760 * digital DAC circuit. 1761 */ 1762 regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ, 1763 NAU8821_BIAS_VMID_SEL_MASK | NAU8821_BIAS_TESTDAC_EN, 1764 (nau8821->vref_impedance << NAU8821_BIAS_VMID_SEL_SFT) | 1765 NAU8821_BIAS_TESTDAC_EN); 1766 /* Disable short Frame Sync detection logic */ 1767 regmap_update_bits(regmap, NAU8821_R1E_LEFT_TIME_SLOT, 1768 NAU8821_DIS_FS_SHORT_DET, NAU8821_DIS_FS_SHORT_DET); 1769 /* Disable Boost Driver, Automatic Short circuit protection enable */ 1770 regmap_update_bits(regmap, NAU8821_R76_BOOST, 1771 NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS | 1772 NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN, 1773 NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS | 1774 NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN); 1775 /* Class G timer 64ms */ 1776 regmap_update_bits(regmap, NAU8821_R4B_CLASSG_CTRL, 1777 NAU8821_CLASSG_TIMER_MASK, 1778 0x20 << NAU8821_CLASSG_TIMER_SFT); 1779 /* Class AB bias current to 2x, DAC Capacitor enable MSB/LSB */ 1780 regmap_update_bits(regmap, NAU8821_R6A_ANALOG_CONTROL_2, 1781 NAU8821_HP_NON_CLASSG_CURRENT_2xADJ | 1782 NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB, 1783 NAU8821_HP_NON_CLASSG_CURRENT_2xADJ | 1784 NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB); 1785 /* Disable DACR/L power */ 1786 regmap_update_bits(regmap, NAU8821_R80_CHARGE_PUMP, 1787 NAU8821_POWER_DOWN_DACR | NAU8821_POWER_DOWN_DACL, 0); 1788 /* DAC clock delay 2ns, VREF */ 1789 regmap_update_bits(regmap, NAU8821_R73_RDAC, 1790 NAU8821_DAC_CLK_DELAY_MASK | NAU8821_DAC_VREF_MASK, 1791 (0x2 << NAU8821_DAC_CLK_DELAY_SFT) | 1792 (0x3 << NAU8821_DAC_VREF_SFT)); 1793 1794 regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, 1795 NAU8821_MICBIAS_VOLTAGE_MASK, nau8821->micbias_voltage); 1796 /* Default oversampling/decimations settings are unusable 1797 * (audible hiss). Set it to something better. 1798 */ 1799 regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, 1800 NAU8821_ADC_SYNC_DOWN_MASK, NAU8821_ADC_SYNC_DOWN_64); 1801 regmap_update_bits(regmap, NAU8821_R2C_DAC_CTRL1, 1802 NAU8821_DAC_OVERSAMPLE_MASK, NAU8821_DAC_OVERSAMPLE_64); 1803 regmap_update_bits(regmap, NAU8821_R13_DMIC_CTRL, 1804 NAU8821_DMIC_SLEW_MASK, nau8821->dmic_slew_rate << 1805 NAU8821_DMIC_SLEW_SFT); 1806 if (nau8821->left_input_single_end) { 1807 regmap_update_bits(regmap, NAU8821_R6B_PGA_MUTE, 1808 NAU8821_MUTE_MICNL_EN, NAU8821_MUTE_MICNL_EN); 1809 regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, 1810 NAU8821_MICBIAS_LOWNOISE_EN, NAU8821_MICBIAS_LOWNOISE_EN); 1811 } 1812 } 1813 1814 static int nau8821_setup_irq(struct nau8821 *nau8821) 1815 { 1816 struct regmap *regmap = nau8821->regmap; 1817 1818 /* Jack detection */ 1819 regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, 1820 NAU8821_JKDET_OUTPUT_EN, 1821 nau8821->jkdet_enable ? 0 : NAU8821_JKDET_OUTPUT_EN); 1822 regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, 1823 NAU8821_JKDET_PULL_EN, 1824 nau8821->jkdet_pull_enable ? 0 : NAU8821_JKDET_PULL_EN); 1825 regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, 1826 NAU8821_JKDET_PULL_UP, 1827 nau8821->jkdet_pull_up ? NAU8821_JKDET_PULL_UP : 0); 1828 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1829 NAU8821_JACK_POLARITY, 1830 /* jkdet_polarity - 1 is for active-low */ 1831 nau8821->jkdet_polarity ? 0 : NAU8821_JACK_POLARITY); 1832 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1833 NAU8821_JACK_INSERT_DEBOUNCE_MASK, 1834 nau8821->jack_insert_debounce << 1835 NAU8821_JACK_INSERT_DEBOUNCE_SFT); 1836 regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, 1837 NAU8821_JACK_EJECT_DEBOUNCE_MASK, 1838 nau8821->jack_eject_debounce << 1839 NAU8821_JACK_EJECT_DEBOUNCE_SFT); 1840 /* Pull up IRQ pin */ 1841 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 1842 NAU8821_IRQ_PIN_PULL_UP | NAU8821_IRQ_PIN_PULL_EN | 1843 NAU8821_IRQ_OUTPUT_EN, NAU8821_IRQ_PIN_PULL_UP | 1844 NAU8821_IRQ_PIN_PULL_EN | NAU8821_IRQ_OUTPUT_EN); 1845 /* Disable interruption before codec initiation done */ 1846 /* Mask unneeded IRQs: 1 - disable, 0 - enable */ 1847 regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 0x3f5, 0x3f5); 1848 1849 return 0; 1850 } 1851 1852 /* Please keep this list alphabetically sorted */ 1853 static const struct dmi_system_id nau8821_quirk_table[] = { 1854 { 1855 /* Positivo CW14Q01P-V2 */ 1856 .matches = { 1857 DMI_MATCH(DMI_SYS_VENDOR, "Positivo Tecnologia SA"), 1858 DMI_MATCH(DMI_BOARD_NAME, "CW14Q01P-V2"), 1859 }, 1860 .driver_data = (void *)(NAU8821_JD_ACTIVE_HIGH), 1861 }, 1862 {} 1863 }; 1864 1865 static void nau8821_check_quirks(void) 1866 { 1867 const struct dmi_system_id *dmi_id; 1868 1869 if (quirk_override != -1) { 1870 nau8821_quirk = quirk_override; 1871 return; 1872 } 1873 1874 dmi_id = dmi_first_match(nau8821_quirk_table); 1875 if (dmi_id) 1876 nau8821_quirk = (unsigned long)dmi_id->driver_data; 1877 } 1878 1879 static int nau8821_i2c_probe(struct i2c_client *i2c) 1880 { 1881 struct device *dev = &i2c->dev; 1882 struct nau8821 *nau8821 = dev_get_platdata(&i2c->dev); 1883 int ret, value; 1884 1885 if (!nau8821) { 1886 nau8821 = devm_kzalloc(dev, sizeof(*nau8821), GFP_KERNEL); 1887 if (!nau8821) 1888 return -ENOMEM; 1889 nau8821_read_device_properties(dev, nau8821); 1890 } 1891 i2c_set_clientdata(i2c, nau8821); 1892 1893 nau8821->regmap = devm_regmap_init_i2c(i2c, &nau8821_regmap_config); 1894 if (IS_ERR(nau8821->regmap)) 1895 return PTR_ERR(nau8821->regmap); 1896 1897 nau8821->dev = dev; 1898 nau8821->irq = i2c->irq; 1899 1900 nau8821_check_quirks(); 1901 1902 if (nau8821_quirk & NAU8821_JD_ACTIVE_HIGH) 1903 nau8821->jkdet_polarity = 0; 1904 1905 nau8821_print_device_properties(nau8821); 1906 1907 nau8821_reset_chip(nau8821->regmap); 1908 ret = regmap_read(nau8821->regmap, NAU8821_R58_I2C_DEVICE_ID, &value); 1909 if (ret) { 1910 dev_err(dev, "Failed to read device id (%d)\n", ret); 1911 return ret; 1912 } 1913 nau8821_init_regs(nau8821); 1914 1915 if (i2c->irq) 1916 nau8821_setup_irq(nau8821); 1917 1918 ret = devm_snd_soc_register_component(&i2c->dev, 1919 &nau8821_component_driver, &nau8821_dai, 1); 1920 1921 return ret; 1922 } 1923 1924 static const struct i2c_device_id nau8821_i2c_ids[] = { 1925 { "nau8821" }, 1926 { } 1927 }; 1928 MODULE_DEVICE_TABLE(i2c, nau8821_i2c_ids); 1929 1930 #ifdef CONFIG_OF 1931 static const struct of_device_id nau8821_of_ids[] = { 1932 { .compatible = "nuvoton,nau8821", }, 1933 {} 1934 }; 1935 MODULE_DEVICE_TABLE(of, nau8821_of_ids); 1936 #endif 1937 1938 #ifdef CONFIG_ACPI 1939 static const struct acpi_device_id nau8821_acpi_match[] = { 1940 { "NVTN2020", 0 }, 1941 {}, 1942 }; 1943 MODULE_DEVICE_TABLE(acpi, nau8821_acpi_match); 1944 #endif 1945 1946 static struct i2c_driver nau8821_driver = { 1947 .driver = { 1948 .name = "nau8821", 1949 .of_match_table = of_match_ptr(nau8821_of_ids), 1950 .acpi_match_table = ACPI_PTR(nau8821_acpi_match), 1951 }, 1952 .probe = nau8821_i2c_probe, 1953 .id_table = nau8821_i2c_ids, 1954 }; 1955 module_i2c_driver(nau8821_driver); 1956 1957 MODULE_DESCRIPTION("ASoC nau8821 driver"); 1958 MODULE_AUTHOR("John Hsu <kchsu0@nuvoton.com>"); 1959 MODULE_AUTHOR("Seven Lee <wtli@nuvoton.com>"); 1960 MODULE_LICENSE("GPL"); 1961