1 // SPDX-License-Identifier: GPL-2.0 2 // TLV320ADCX140 Sound driver 3 // Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/ 4 5 #include <linux/module.h> 6 #include <linux/moduleparam.h> 7 #include <linux/init.h> 8 #include <linux/delay.h> 9 #include <linux/pm.h> 10 #include <linux/i2c.h> 11 #include <linux/gpio/consumer.h> 12 #include <linux/regulator/consumer.h> 13 #include <linux/acpi.h> 14 #include <linux/of.h> 15 #include <linux/of_gpio.h> 16 #include <linux/slab.h> 17 #include <sound/core.h> 18 #include <sound/pcm.h> 19 #include <sound/pcm_params.h> 20 #include <sound/soc.h> 21 #include <sound/initval.h> 22 #include <sound/tlv.h> 23 24 #include "tlv320adcx140.h" 25 26 struct adcx140_priv { 27 struct snd_soc_component *component; 28 struct regulator *supply_areg; 29 struct gpio_desc *gpio_reset; 30 struct regmap *regmap; 31 struct device *dev; 32 33 bool micbias_vg; 34 35 unsigned int dai_fmt; 36 unsigned int tdm_delay; 37 unsigned int slot_width; 38 }; 39 40 static const char * const gpo_config_names[] = { 41 "ti,gpo-config-1", 42 "ti,gpo-config-2", 43 "ti,gpo-config-3", 44 "ti,gpo-config-4", 45 }; 46 47 static const struct reg_default adcx140_reg_defaults[] = { 48 { ADCX140_PAGE_SELECT, 0x00 }, 49 { ADCX140_SW_RESET, 0x00 }, 50 { ADCX140_SLEEP_CFG, 0x00 }, 51 { ADCX140_SHDN_CFG, 0x05 }, 52 { ADCX140_ASI_CFG0, 0x30 }, 53 { ADCX140_ASI_CFG1, 0x00 }, 54 { ADCX140_ASI_CFG2, 0x00 }, 55 { ADCX140_ASI_CH1, 0x00 }, 56 { ADCX140_ASI_CH2, 0x01 }, 57 { ADCX140_ASI_CH3, 0x02 }, 58 { ADCX140_ASI_CH4, 0x03 }, 59 { ADCX140_ASI_CH5, 0x04 }, 60 { ADCX140_ASI_CH6, 0x05 }, 61 { ADCX140_ASI_CH7, 0x06 }, 62 { ADCX140_ASI_CH8, 0x07 }, 63 { ADCX140_MST_CFG0, 0x02 }, 64 { ADCX140_MST_CFG1, 0x48 }, 65 { ADCX140_ASI_STS, 0xff }, 66 { ADCX140_CLK_SRC, 0x10 }, 67 { ADCX140_PDMCLK_CFG, 0x40 }, 68 { ADCX140_PDM_CFG, 0x00 }, 69 { ADCX140_GPIO_CFG0, 0x22 }, 70 { ADCX140_GPO_CFG0, 0x00 }, 71 { ADCX140_GPO_CFG1, 0x00 }, 72 { ADCX140_GPO_CFG2, 0x00 }, 73 { ADCX140_GPO_CFG3, 0x00 }, 74 { ADCX140_GPO_VAL, 0x00 }, 75 { ADCX140_GPIO_MON, 0x00 }, 76 { ADCX140_GPI_CFG0, 0x00 }, 77 { ADCX140_GPI_CFG1, 0x00 }, 78 { ADCX140_GPI_MON, 0x00 }, 79 { ADCX140_INT_CFG, 0x00 }, 80 { ADCX140_INT_MASK0, 0xff }, 81 { ADCX140_INT_LTCH0, 0x00 }, 82 { ADCX140_BIAS_CFG, 0x00 }, 83 { ADCX140_CH1_CFG0, 0x00 }, 84 { ADCX140_CH1_CFG1, 0x00 }, 85 { ADCX140_CH1_CFG2, 0xc9 }, 86 { ADCX140_CH1_CFG3, 0x80 }, 87 { ADCX140_CH1_CFG4, 0x00 }, 88 { ADCX140_CH2_CFG0, 0x00 }, 89 { ADCX140_CH2_CFG1, 0x00 }, 90 { ADCX140_CH2_CFG2, 0xc9 }, 91 { ADCX140_CH2_CFG3, 0x80 }, 92 { ADCX140_CH2_CFG4, 0x00 }, 93 { ADCX140_CH3_CFG0, 0x00 }, 94 { ADCX140_CH3_CFG1, 0x00 }, 95 { ADCX140_CH3_CFG2, 0xc9 }, 96 { ADCX140_CH3_CFG3, 0x80 }, 97 { ADCX140_CH3_CFG4, 0x00 }, 98 { ADCX140_CH4_CFG0, 0x00 }, 99 { ADCX140_CH4_CFG1, 0x00 }, 100 { ADCX140_CH4_CFG2, 0xc9 }, 101 { ADCX140_CH4_CFG3, 0x80 }, 102 { ADCX140_CH4_CFG4, 0x00 }, 103 { ADCX140_CH5_CFG2, 0xc9 }, 104 { ADCX140_CH5_CFG3, 0x80 }, 105 { ADCX140_CH5_CFG4, 0x00 }, 106 { ADCX140_CH6_CFG2, 0xc9 }, 107 { ADCX140_CH6_CFG3, 0x80 }, 108 { ADCX140_CH6_CFG4, 0x00 }, 109 { ADCX140_CH7_CFG2, 0xc9 }, 110 { ADCX140_CH7_CFG3, 0x80 }, 111 { ADCX140_CH7_CFG4, 0x00 }, 112 { ADCX140_CH8_CFG2, 0xc9 }, 113 { ADCX140_CH8_CFG3, 0x80 }, 114 { ADCX140_CH8_CFG4, 0x00 }, 115 { ADCX140_DSP_CFG0, 0x01 }, 116 { ADCX140_DSP_CFG1, 0x40 }, 117 { ADCX140_DRE_CFG0, 0x7b }, 118 { ADCX140_AGC_CFG0, 0xe7 }, 119 { ADCX140_IN_CH_EN, 0xf0 }, 120 { ADCX140_ASI_OUT_CH_EN, 0x00 }, 121 { ADCX140_PWR_CFG, 0x00 }, 122 { ADCX140_DEV_STS0, 0x00 }, 123 { ADCX140_DEV_STS1, 0x80 }, 124 }; 125 126 static const struct regmap_range_cfg adcx140_ranges[] = { 127 { 128 .range_min = 0, 129 .range_max = 12 * 128, 130 .selector_reg = ADCX140_PAGE_SELECT, 131 .selector_mask = 0xff, 132 .selector_shift = 0, 133 .window_start = 0, 134 .window_len = 128, 135 }, 136 }; 137 138 static bool adcx140_volatile(struct device *dev, unsigned int reg) 139 { 140 switch (reg) { 141 case ADCX140_SW_RESET: 142 case ADCX140_DEV_STS0: 143 case ADCX140_DEV_STS1: 144 case ADCX140_ASI_STS: 145 return true; 146 default: 147 return false; 148 } 149 } 150 151 static const struct regmap_config adcx140_i2c_regmap = { 152 .reg_bits = 8, 153 .val_bits = 8, 154 .reg_defaults = adcx140_reg_defaults, 155 .num_reg_defaults = ARRAY_SIZE(adcx140_reg_defaults), 156 .cache_type = REGCACHE_FLAT, 157 .ranges = adcx140_ranges, 158 .num_ranges = ARRAY_SIZE(adcx140_ranges), 159 .max_register = 12 * 128, 160 .volatile_reg = adcx140_volatile, 161 }; 162 163 /* Digital Volume control. From -100 to 27 dB in 0.5 dB steps */ 164 static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10050, 50, 0); 165 166 /* ADC gain. From 0 to 42 dB in 1 dB steps */ 167 static DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0); 168 169 /* DRE Level. From -12 dB to -66 dB in 1 dB steps */ 170 static DECLARE_TLV_DB_SCALE(dre_thresh_tlv, -6600, 100, 0); 171 /* DRE Max Gain. From 2 dB to 26 dB in 2 dB steps */ 172 static DECLARE_TLV_DB_SCALE(dre_gain_tlv, 200, 200, 0); 173 174 /* AGC Level. From -6 dB to -36 dB in 2 dB steps */ 175 static DECLARE_TLV_DB_SCALE(agc_thresh_tlv, -3600, 200, 0); 176 /* AGC Max Gain. From 3 dB to 42 dB in 3 dB steps */ 177 static DECLARE_TLV_DB_SCALE(agc_gain_tlv, 300, 300, 0); 178 179 static const char * const decimation_filter_text[] = { 180 "Linear Phase", "Low Latency", "Ultra-low Latency" 181 }; 182 183 static SOC_ENUM_SINGLE_DECL(decimation_filter_enum, ADCX140_DSP_CFG0, 4, 184 decimation_filter_text); 185 186 static const struct snd_kcontrol_new decimation_filter_controls[] = { 187 SOC_DAPM_ENUM("Decimation Filter", decimation_filter_enum), 188 }; 189 190 static const char * const pdmclk_text[] = { 191 "2.8224 MHz", "1.4112 MHz", "705.6 kHz", "5.6448 MHz" 192 }; 193 194 static SOC_ENUM_SINGLE_DECL(pdmclk_select_enum, ADCX140_PDMCLK_CFG, 0, 195 pdmclk_text); 196 197 static const struct snd_kcontrol_new pdmclk_div_controls[] = { 198 SOC_DAPM_ENUM("PDM Clk Divider Select", pdmclk_select_enum), 199 }; 200 201 static const char * const resistor_text[] = { 202 "2.5 kOhm", "10 kOhm", "20 kOhm" 203 }; 204 205 static SOC_ENUM_SINGLE_DECL(in1_resistor_enum, ADCX140_CH1_CFG0, 2, 206 resistor_text); 207 static SOC_ENUM_SINGLE_DECL(in2_resistor_enum, ADCX140_CH2_CFG0, 2, 208 resistor_text); 209 static SOC_ENUM_SINGLE_DECL(in3_resistor_enum, ADCX140_CH3_CFG0, 2, 210 resistor_text); 211 static SOC_ENUM_SINGLE_DECL(in4_resistor_enum, ADCX140_CH4_CFG0, 2, 212 resistor_text); 213 214 static const struct snd_kcontrol_new in1_resistor_controls[] = { 215 SOC_DAPM_ENUM("CH1 Resistor Select", in1_resistor_enum), 216 }; 217 static const struct snd_kcontrol_new in2_resistor_controls[] = { 218 SOC_DAPM_ENUM("CH2 Resistor Select", in2_resistor_enum), 219 }; 220 static const struct snd_kcontrol_new in3_resistor_controls[] = { 221 SOC_DAPM_ENUM("CH3 Resistor Select", in3_resistor_enum), 222 }; 223 static const struct snd_kcontrol_new in4_resistor_controls[] = { 224 SOC_DAPM_ENUM("CH4 Resistor Select", in4_resistor_enum), 225 }; 226 227 /* Analog/Digital Selection */ 228 static const char * const adcx140_mic_sel_text[] = {"Analog", "Line In", "Digital"}; 229 static const char * const adcx140_analog_sel_text[] = {"Analog", "Line In"}; 230 231 static SOC_ENUM_SINGLE_DECL(adcx140_mic1p_enum, 232 ADCX140_CH1_CFG0, 5, 233 adcx140_mic_sel_text); 234 235 static const struct snd_kcontrol_new adcx140_dapm_mic1p_control = 236 SOC_DAPM_ENUM("MIC1P MUX", adcx140_mic1p_enum); 237 238 static SOC_ENUM_SINGLE_DECL(adcx140_mic1_analog_enum, 239 ADCX140_CH1_CFG0, 7, 240 adcx140_analog_sel_text); 241 242 static const struct snd_kcontrol_new adcx140_dapm_mic1_analog_control = 243 SOC_DAPM_ENUM("MIC1 Analog MUX", adcx140_mic1_analog_enum); 244 245 static SOC_ENUM_SINGLE_DECL(adcx140_mic1m_enum, 246 ADCX140_CH1_CFG0, 5, 247 adcx140_mic_sel_text); 248 249 static const struct snd_kcontrol_new adcx140_dapm_mic1m_control = 250 SOC_DAPM_ENUM("MIC1M MUX", adcx140_mic1m_enum); 251 252 static SOC_ENUM_SINGLE_DECL(adcx140_mic2p_enum, 253 ADCX140_CH2_CFG0, 5, 254 adcx140_mic_sel_text); 255 256 static const struct snd_kcontrol_new adcx140_dapm_mic2p_control = 257 SOC_DAPM_ENUM("MIC2P MUX", adcx140_mic2p_enum); 258 259 static SOC_ENUM_SINGLE_DECL(adcx140_mic2_analog_enum, 260 ADCX140_CH2_CFG0, 7, 261 adcx140_analog_sel_text); 262 263 static const struct snd_kcontrol_new adcx140_dapm_mic2_analog_control = 264 SOC_DAPM_ENUM("MIC2 Analog MUX", adcx140_mic2_analog_enum); 265 266 static SOC_ENUM_SINGLE_DECL(adcx140_mic2m_enum, 267 ADCX140_CH2_CFG0, 5, 268 adcx140_mic_sel_text); 269 270 static const struct snd_kcontrol_new adcx140_dapm_mic2m_control = 271 SOC_DAPM_ENUM("MIC2M MUX", adcx140_mic2m_enum); 272 273 static SOC_ENUM_SINGLE_DECL(adcx140_mic3p_enum, 274 ADCX140_CH3_CFG0, 5, 275 adcx140_mic_sel_text); 276 277 static const struct snd_kcontrol_new adcx140_dapm_mic3p_control = 278 SOC_DAPM_ENUM("MIC3P MUX", adcx140_mic3p_enum); 279 280 static SOC_ENUM_SINGLE_DECL(adcx140_mic3_analog_enum, 281 ADCX140_CH3_CFG0, 7, 282 adcx140_analog_sel_text); 283 284 static const struct snd_kcontrol_new adcx140_dapm_mic3_analog_control = 285 SOC_DAPM_ENUM("MIC3 Analog MUX", adcx140_mic3_analog_enum); 286 287 static SOC_ENUM_SINGLE_DECL(adcx140_mic3m_enum, 288 ADCX140_CH3_CFG0, 5, 289 adcx140_mic_sel_text); 290 291 static const struct snd_kcontrol_new adcx140_dapm_mic3m_control = 292 SOC_DAPM_ENUM("MIC3M MUX", adcx140_mic3m_enum); 293 294 static SOC_ENUM_SINGLE_DECL(adcx140_mic4p_enum, 295 ADCX140_CH4_CFG0, 5, 296 adcx140_mic_sel_text); 297 298 static const struct snd_kcontrol_new adcx140_dapm_mic4p_control = 299 SOC_DAPM_ENUM("MIC4P MUX", adcx140_mic4p_enum); 300 301 static SOC_ENUM_SINGLE_DECL(adcx140_mic4_analog_enum, 302 ADCX140_CH4_CFG0, 7, 303 adcx140_analog_sel_text); 304 305 static const struct snd_kcontrol_new adcx140_dapm_mic4_analog_control = 306 SOC_DAPM_ENUM("MIC4 Analog MUX", adcx140_mic4_analog_enum); 307 308 static SOC_ENUM_SINGLE_DECL(adcx140_mic4m_enum, 309 ADCX140_CH4_CFG0, 5, 310 adcx140_mic_sel_text); 311 312 static const struct snd_kcontrol_new adcx140_dapm_mic4m_control = 313 SOC_DAPM_ENUM("MIC4M MUX", adcx140_mic4m_enum); 314 315 static const struct snd_kcontrol_new adcx140_dapm_ch1_en_switch = 316 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 7, 1, 0); 317 static const struct snd_kcontrol_new adcx140_dapm_ch2_en_switch = 318 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 6, 1, 0); 319 static const struct snd_kcontrol_new adcx140_dapm_ch3_en_switch = 320 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 5, 1, 0); 321 static const struct snd_kcontrol_new adcx140_dapm_ch4_en_switch = 322 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 4, 1, 0); 323 static const struct snd_kcontrol_new adcx140_dapm_ch5_en_switch = 324 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 3, 1, 0); 325 static const struct snd_kcontrol_new adcx140_dapm_ch6_en_switch = 326 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 2, 1, 0); 327 static const struct snd_kcontrol_new adcx140_dapm_ch7_en_switch = 328 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 1, 1, 0); 329 static const struct snd_kcontrol_new adcx140_dapm_ch8_en_switch = 330 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 0, 1, 0); 331 332 static const struct snd_kcontrol_new adcx140_dapm_ch1_dre_en_switch = 333 SOC_DAPM_SINGLE("Switch", ADCX140_CH1_CFG0, 0, 1, 0); 334 static const struct snd_kcontrol_new adcx140_dapm_ch2_dre_en_switch = 335 SOC_DAPM_SINGLE("Switch", ADCX140_CH2_CFG0, 0, 1, 0); 336 static const struct snd_kcontrol_new adcx140_dapm_ch3_dre_en_switch = 337 SOC_DAPM_SINGLE("Switch", ADCX140_CH3_CFG0, 0, 1, 0); 338 static const struct snd_kcontrol_new adcx140_dapm_ch4_dre_en_switch = 339 SOC_DAPM_SINGLE("Switch", ADCX140_CH4_CFG0, 0, 1, 0); 340 341 static const struct snd_kcontrol_new adcx140_dapm_dre_en_switch = 342 SOC_DAPM_SINGLE("Switch", ADCX140_DSP_CFG1, 3, 1, 0); 343 344 /* Output Mixer */ 345 static const struct snd_kcontrol_new adcx140_output_mixer_controls[] = { 346 SOC_DAPM_SINGLE("Digital CH1 Switch", 0, 0, 0, 0), 347 SOC_DAPM_SINGLE("Digital CH2 Switch", 0, 0, 0, 0), 348 SOC_DAPM_SINGLE("Digital CH3 Switch", 0, 0, 0, 0), 349 SOC_DAPM_SINGLE("Digital CH4 Switch", 0, 0, 0, 0), 350 }; 351 352 static const struct snd_soc_dapm_widget adcx140_dapm_widgets[] = { 353 /* Analog Differential Inputs */ 354 SND_SOC_DAPM_INPUT("MIC1P"), 355 SND_SOC_DAPM_INPUT("MIC1M"), 356 SND_SOC_DAPM_INPUT("MIC2P"), 357 SND_SOC_DAPM_INPUT("MIC2M"), 358 SND_SOC_DAPM_INPUT("MIC3P"), 359 SND_SOC_DAPM_INPUT("MIC3M"), 360 SND_SOC_DAPM_INPUT("MIC4P"), 361 SND_SOC_DAPM_INPUT("MIC4M"), 362 363 SND_SOC_DAPM_OUTPUT("CH1_OUT"), 364 SND_SOC_DAPM_OUTPUT("CH2_OUT"), 365 SND_SOC_DAPM_OUTPUT("CH3_OUT"), 366 SND_SOC_DAPM_OUTPUT("CH4_OUT"), 367 SND_SOC_DAPM_OUTPUT("CH5_OUT"), 368 SND_SOC_DAPM_OUTPUT("CH6_OUT"), 369 SND_SOC_DAPM_OUTPUT("CH7_OUT"), 370 SND_SOC_DAPM_OUTPUT("CH8_OUT"), 371 372 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 373 &adcx140_output_mixer_controls[0], 374 ARRAY_SIZE(adcx140_output_mixer_controls)), 375 376 /* Input Selection to MIC_PGA */ 377 SND_SOC_DAPM_MUX("MIC1P Input Mux", SND_SOC_NOPM, 0, 0, 378 &adcx140_dapm_mic1p_control), 379 SND_SOC_DAPM_MUX("MIC2P Input Mux", SND_SOC_NOPM, 0, 0, 380 &adcx140_dapm_mic2p_control), 381 SND_SOC_DAPM_MUX("MIC3P Input Mux", SND_SOC_NOPM, 0, 0, 382 &adcx140_dapm_mic3p_control), 383 SND_SOC_DAPM_MUX("MIC4P Input Mux", SND_SOC_NOPM, 0, 0, 384 &adcx140_dapm_mic4p_control), 385 386 /* Input Selection to MIC_PGA */ 387 SND_SOC_DAPM_MUX("MIC1 Analog Mux", SND_SOC_NOPM, 0, 0, 388 &adcx140_dapm_mic1_analog_control), 389 SND_SOC_DAPM_MUX("MIC2 Analog Mux", SND_SOC_NOPM, 0, 0, 390 &adcx140_dapm_mic2_analog_control), 391 SND_SOC_DAPM_MUX("MIC3 Analog Mux", SND_SOC_NOPM, 0, 0, 392 &adcx140_dapm_mic3_analog_control), 393 SND_SOC_DAPM_MUX("MIC4 Analog Mux", SND_SOC_NOPM, 0, 0, 394 &adcx140_dapm_mic4_analog_control), 395 396 SND_SOC_DAPM_MUX("MIC1M Input Mux", SND_SOC_NOPM, 0, 0, 397 &adcx140_dapm_mic1m_control), 398 SND_SOC_DAPM_MUX("MIC2M Input Mux", SND_SOC_NOPM, 0, 0, 399 &adcx140_dapm_mic2m_control), 400 SND_SOC_DAPM_MUX("MIC3M Input Mux", SND_SOC_NOPM, 0, 0, 401 &adcx140_dapm_mic3m_control), 402 SND_SOC_DAPM_MUX("MIC4M Input Mux", SND_SOC_NOPM, 0, 0, 403 &adcx140_dapm_mic4m_control), 404 405 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH1", SND_SOC_NOPM, 0, 0, NULL, 0), 406 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH2", SND_SOC_NOPM, 0, 0, NULL, 0), 407 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH3", SND_SOC_NOPM, 0, 0, NULL, 0), 408 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH4", SND_SOC_NOPM, 0, 0, NULL, 0), 409 410 SND_SOC_DAPM_ADC("CH1_ADC", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0), 411 SND_SOC_DAPM_ADC("CH2_ADC", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0), 412 SND_SOC_DAPM_ADC("CH3_ADC", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0), 413 SND_SOC_DAPM_ADC("CH4_ADC", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0), 414 415 SND_SOC_DAPM_ADC("CH1_DIG", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0), 416 SND_SOC_DAPM_ADC("CH2_DIG", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0), 417 SND_SOC_DAPM_ADC("CH3_DIG", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0), 418 SND_SOC_DAPM_ADC("CH4_DIG", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0), 419 SND_SOC_DAPM_ADC("CH5_DIG", "CH5 Capture", ADCX140_IN_CH_EN, 3, 0), 420 SND_SOC_DAPM_ADC("CH6_DIG", "CH6 Capture", ADCX140_IN_CH_EN, 2, 0), 421 SND_SOC_DAPM_ADC("CH7_DIG", "CH7 Capture", ADCX140_IN_CH_EN, 1, 0), 422 SND_SOC_DAPM_ADC("CH8_DIG", "CH8 Capture", ADCX140_IN_CH_EN, 0, 0), 423 424 425 SND_SOC_DAPM_SWITCH("CH1_ASI_EN", SND_SOC_NOPM, 0, 0, 426 &adcx140_dapm_ch1_en_switch), 427 SND_SOC_DAPM_SWITCH("CH2_ASI_EN", SND_SOC_NOPM, 0, 0, 428 &adcx140_dapm_ch2_en_switch), 429 SND_SOC_DAPM_SWITCH("CH3_ASI_EN", SND_SOC_NOPM, 0, 0, 430 &adcx140_dapm_ch3_en_switch), 431 SND_SOC_DAPM_SWITCH("CH4_ASI_EN", SND_SOC_NOPM, 0, 0, 432 &adcx140_dapm_ch4_en_switch), 433 434 SND_SOC_DAPM_SWITCH("CH5_ASI_EN", SND_SOC_NOPM, 0, 0, 435 &adcx140_dapm_ch5_en_switch), 436 SND_SOC_DAPM_SWITCH("CH6_ASI_EN", SND_SOC_NOPM, 0, 0, 437 &adcx140_dapm_ch6_en_switch), 438 SND_SOC_DAPM_SWITCH("CH7_ASI_EN", SND_SOC_NOPM, 0, 0, 439 &adcx140_dapm_ch7_en_switch), 440 SND_SOC_DAPM_SWITCH("CH8_ASI_EN", SND_SOC_NOPM, 0, 0, 441 &adcx140_dapm_ch8_en_switch), 442 443 SND_SOC_DAPM_SWITCH("DRE_ENABLE", SND_SOC_NOPM, 0, 0, 444 &adcx140_dapm_dre_en_switch), 445 446 SND_SOC_DAPM_SWITCH("CH1_DRE_EN", SND_SOC_NOPM, 0, 0, 447 &adcx140_dapm_ch1_dre_en_switch), 448 SND_SOC_DAPM_SWITCH("CH2_DRE_EN", SND_SOC_NOPM, 0, 0, 449 &adcx140_dapm_ch2_dre_en_switch), 450 SND_SOC_DAPM_SWITCH("CH3_DRE_EN", SND_SOC_NOPM, 0, 0, 451 &adcx140_dapm_ch3_dre_en_switch), 452 SND_SOC_DAPM_SWITCH("CH4_DRE_EN", SND_SOC_NOPM, 0, 0, 453 &adcx140_dapm_ch4_dre_en_switch), 454 455 SND_SOC_DAPM_MUX("IN1 Analog Mic Resistor", SND_SOC_NOPM, 0, 0, 456 in1_resistor_controls), 457 SND_SOC_DAPM_MUX("IN2 Analog Mic Resistor", SND_SOC_NOPM, 0, 0, 458 in2_resistor_controls), 459 SND_SOC_DAPM_MUX("IN3 Analog Mic Resistor", SND_SOC_NOPM, 0, 0, 460 in3_resistor_controls), 461 SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0, 462 in4_resistor_controls), 463 464 SND_SOC_DAPM_MUX("PDM Clk Div Select", SND_SOC_NOPM, 0, 0, 465 pdmclk_div_controls), 466 467 SND_SOC_DAPM_MUX("Decimation Filter", SND_SOC_NOPM, 0, 0, 468 decimation_filter_controls), 469 }; 470 471 static const struct snd_soc_dapm_route adcx140_audio_map[] = { 472 /* Outputs */ 473 {"CH1_OUT", NULL, "Output Mixer"}, 474 {"CH2_OUT", NULL, "Output Mixer"}, 475 {"CH3_OUT", NULL, "Output Mixer"}, 476 {"CH4_OUT", NULL, "Output Mixer"}, 477 478 {"CH1_ASI_EN", "Switch", "CH1_ADC"}, 479 {"CH2_ASI_EN", "Switch", "CH2_ADC"}, 480 {"CH3_ASI_EN", "Switch", "CH3_ADC"}, 481 {"CH4_ASI_EN", "Switch", "CH4_ADC"}, 482 483 {"CH1_ASI_EN", "Switch", "CH1_DIG"}, 484 {"CH2_ASI_EN", "Switch", "CH2_DIG"}, 485 {"CH3_ASI_EN", "Switch", "CH3_DIG"}, 486 {"CH4_ASI_EN", "Switch", "CH4_DIG"}, 487 {"CH5_ASI_EN", "Switch", "CH5_DIG"}, 488 {"CH6_ASI_EN", "Switch", "CH6_DIG"}, 489 {"CH7_ASI_EN", "Switch", "CH7_DIG"}, 490 {"CH8_ASI_EN", "Switch", "CH8_DIG"}, 491 492 {"CH5_ASI_EN", "Switch", "CH5_OUT"}, 493 {"CH6_ASI_EN", "Switch", "CH6_OUT"}, 494 {"CH7_ASI_EN", "Switch", "CH7_OUT"}, 495 {"CH8_ASI_EN", "Switch", "CH8_OUT"}, 496 497 {"Decimation Filter", "Linear Phase", "DRE_ENABLE"}, 498 {"Decimation Filter", "Low Latency", "DRE_ENABLE"}, 499 {"Decimation Filter", "Ultra-low Latency", "DRE_ENABLE"}, 500 501 {"DRE_ENABLE", "Switch", "CH1_DRE_EN"}, 502 {"DRE_ENABLE", "Switch", "CH2_DRE_EN"}, 503 {"DRE_ENABLE", "Switch", "CH3_DRE_EN"}, 504 {"DRE_ENABLE", "Switch", "CH4_DRE_EN"}, 505 506 {"CH1_DRE_EN", "Switch", "CH1_ADC"}, 507 {"CH2_DRE_EN", "Switch", "CH2_ADC"}, 508 {"CH3_DRE_EN", "Switch", "CH3_ADC"}, 509 {"CH4_DRE_EN", "Switch", "CH4_ADC"}, 510 511 /* Mic input */ 512 {"CH1_ADC", NULL, "MIC_GAIN_CTL_CH1"}, 513 {"CH2_ADC", NULL, "MIC_GAIN_CTL_CH2"}, 514 {"CH3_ADC", NULL, "MIC_GAIN_CTL_CH3"}, 515 {"CH4_ADC", NULL, "MIC_GAIN_CTL_CH4"}, 516 517 {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"}, 518 {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"}, 519 {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"}, 520 {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"}, 521 {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"}, 522 {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"}, 523 {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"}, 524 {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"}, 525 526 {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1P Input Mux"}, 527 {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1P Input Mux"}, 528 {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1P Input Mux"}, 529 530 {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1M Input Mux"}, 531 {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1M Input Mux"}, 532 {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1M Input Mux"}, 533 534 {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2P Input Mux"}, 535 {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2P Input Mux"}, 536 {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2P Input Mux"}, 537 538 {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2M Input Mux"}, 539 {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2M Input Mux"}, 540 {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2M Input Mux"}, 541 542 {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3P Input Mux"}, 543 {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3P Input Mux"}, 544 {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3P Input Mux"}, 545 546 {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3M Input Mux"}, 547 {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3M Input Mux"}, 548 {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3M Input Mux"}, 549 550 {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4P Input Mux"}, 551 {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4P Input Mux"}, 552 {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4P Input Mux"}, 553 554 {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4M Input Mux"}, 555 {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"}, 556 {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"}, 557 558 {"PDM Clk Div Select", "2.8224 MHz", "MIC1P Input Mux"}, 559 {"PDM Clk Div Select", "1.4112 MHz", "MIC1P Input Mux"}, 560 {"PDM Clk Div Select", "705.6 kHz", "MIC1P Input Mux"}, 561 {"PDM Clk Div Select", "5.6448 MHz", "MIC1P Input Mux"}, 562 563 {"MIC1P Input Mux", NULL, "CH1_DIG"}, 564 {"MIC1M Input Mux", NULL, "CH2_DIG"}, 565 {"MIC2P Input Mux", NULL, "CH3_DIG"}, 566 {"MIC2M Input Mux", NULL, "CH4_DIG"}, 567 {"MIC3P Input Mux", NULL, "CH5_DIG"}, 568 {"MIC3M Input Mux", NULL, "CH6_DIG"}, 569 {"MIC4P Input Mux", NULL, "CH7_DIG"}, 570 {"MIC4M Input Mux", NULL, "CH8_DIG"}, 571 572 {"MIC1 Analog Mux", "Line In", "MIC1P"}, 573 {"MIC2 Analog Mux", "Line In", "MIC2P"}, 574 {"MIC3 Analog Mux", "Line In", "MIC3P"}, 575 {"MIC4 Analog Mux", "Line In", "MIC4P"}, 576 577 {"MIC1P Input Mux", "Analog", "MIC1P"}, 578 {"MIC1M Input Mux", "Analog", "MIC1M"}, 579 {"MIC2P Input Mux", "Analog", "MIC2P"}, 580 {"MIC2M Input Mux", "Analog", "MIC2M"}, 581 {"MIC3P Input Mux", "Analog", "MIC3P"}, 582 {"MIC3M Input Mux", "Analog", "MIC3M"}, 583 {"MIC4P Input Mux", "Analog", "MIC4P"}, 584 {"MIC4M Input Mux", "Analog", "MIC4M"}, 585 586 {"MIC1P Input Mux", "Digital", "MIC1P"}, 587 {"MIC1M Input Mux", "Digital", "MIC1M"}, 588 {"MIC2P Input Mux", "Digital", "MIC2P"}, 589 {"MIC2M Input Mux", "Digital", "MIC2M"}, 590 {"MIC3P Input Mux", "Digital", "MIC3P"}, 591 {"MIC3M Input Mux", "Digital", "MIC3M"}, 592 {"MIC4P Input Mux", "Digital", "MIC4P"}, 593 {"MIC4M Input Mux", "Digital", "MIC4M"}, 594 }; 595 596 static const struct snd_kcontrol_new adcx140_snd_controls[] = { 597 SOC_SINGLE_TLV("Analog CH1 Mic Gain Volume", ADCX140_CH1_CFG1, 2, 42, 0, 598 adc_tlv), 599 SOC_SINGLE_TLV("Analog CH2 Mic Gain Volume", ADCX140_CH2_CFG1, 2, 42, 0, 600 adc_tlv), 601 SOC_SINGLE_TLV("Analog CH3 Mic Gain Volume", ADCX140_CH3_CFG1, 2, 42, 0, 602 adc_tlv), 603 SOC_SINGLE_TLV("Analog CH4 Mic Gain Volume", ADCX140_CH4_CFG1, 2, 42, 0, 604 adc_tlv), 605 606 SOC_SINGLE_TLV("DRE Threshold", ADCX140_DRE_CFG0, 4, 9, 0, 607 dre_thresh_tlv), 608 SOC_SINGLE_TLV("DRE Max Gain", ADCX140_DRE_CFG0, 0, 12, 0, 609 dre_gain_tlv), 610 611 SOC_SINGLE_TLV("AGC Threshold", ADCX140_AGC_CFG0, 4, 15, 0, 612 agc_thresh_tlv), 613 SOC_SINGLE_TLV("AGC Max Gain", ADCX140_AGC_CFG0, 0, 13, 0, 614 agc_gain_tlv), 615 616 SOC_SINGLE_TLV("Digital CH1 Out Volume", ADCX140_CH1_CFG2, 617 0, 0xff, 0, dig_vol_tlv), 618 SOC_SINGLE_TLV("Digital CH2 Out Volume", ADCX140_CH2_CFG2, 619 0, 0xff, 0, dig_vol_tlv), 620 SOC_SINGLE_TLV("Digital CH3 Out Volume", ADCX140_CH3_CFG2, 621 0, 0xff, 0, dig_vol_tlv), 622 SOC_SINGLE_TLV("Digital CH4 Out Volume", ADCX140_CH4_CFG2, 623 0, 0xff, 0, dig_vol_tlv), 624 SOC_SINGLE_TLV("Digital CH5 Out Volume", ADCX140_CH5_CFG2, 625 0, 0xff, 0, dig_vol_tlv), 626 SOC_SINGLE_TLV("Digital CH6 Out Volume", ADCX140_CH6_CFG2, 627 0, 0xff, 0, dig_vol_tlv), 628 SOC_SINGLE_TLV("Digital CH7 Out Volume", ADCX140_CH7_CFG2, 629 0, 0xff, 0, dig_vol_tlv), 630 SOC_SINGLE_TLV("Digital CH8 Out Volume", ADCX140_CH8_CFG2, 631 0, 0xff, 0, dig_vol_tlv), 632 }; 633 634 static int adcx140_reset(struct adcx140_priv *adcx140) 635 { 636 int ret = 0; 637 638 if (adcx140->gpio_reset) { 639 gpiod_direction_output(adcx140->gpio_reset, 0); 640 /* 8.4.1: wait for hw shutdown (25ms) + >= 1ms */ 641 usleep_range(30000, 100000); 642 gpiod_direction_output(adcx140->gpio_reset, 1); 643 } else { 644 ret = regmap_write(adcx140->regmap, ADCX140_SW_RESET, 645 ADCX140_RESET); 646 } 647 648 /* 8.4.2: wait >= 10 ms after entering sleep mode. */ 649 usleep_range(10000, 100000); 650 651 return ret; 652 } 653 654 static void adcx140_pwr_ctrl(struct adcx140_priv *adcx140, bool power_state) 655 { 656 int pwr_ctrl = 0; 657 658 if (power_state) 659 pwr_ctrl = ADCX140_PWR_CFG_ADC_PDZ | ADCX140_PWR_CFG_PLL_PDZ; 660 661 if (adcx140->micbias_vg && power_state) 662 pwr_ctrl |= ADCX140_PWR_CFG_BIAS_PDZ; 663 664 regmap_update_bits(adcx140->regmap, ADCX140_PWR_CFG, 665 ADCX140_PWR_CTRL_MSK, pwr_ctrl); 666 } 667 668 static int adcx140_hw_params(struct snd_pcm_substream *substream, 669 struct snd_pcm_hw_params *params, 670 struct snd_soc_dai *dai) 671 { 672 struct snd_soc_component *component = dai->component; 673 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); 674 u8 data = 0; 675 676 switch (params_width(params)) { 677 case 16: 678 data = ADCX140_16_BIT_WORD; 679 break; 680 case 20: 681 data = ADCX140_20_BIT_WORD; 682 break; 683 case 24: 684 data = ADCX140_24_BIT_WORD; 685 break; 686 case 32: 687 data = ADCX140_32_BIT_WORD; 688 break; 689 default: 690 dev_err(component->dev, "%s: Unsupported width %d\n", 691 __func__, params_width(params)); 692 return -EINVAL; 693 } 694 695 adcx140_pwr_ctrl(adcx140, false); 696 697 snd_soc_component_update_bits(component, ADCX140_ASI_CFG0, 698 ADCX140_WORD_LEN_MSK, data); 699 700 adcx140_pwr_ctrl(adcx140, true); 701 702 return 0; 703 } 704 705 static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai, 706 unsigned int fmt) 707 { 708 struct snd_soc_component *component = codec_dai->component; 709 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); 710 u8 iface_reg1 = 0; 711 u8 iface_reg2 = 0; 712 int offset = 0; 713 bool inverted_bclk = false; 714 715 /* set master/slave audio interface */ 716 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 717 case SND_SOC_DAIFMT_CBP_CFP: 718 iface_reg2 |= ADCX140_BCLK_FSYNC_MASTER; 719 break; 720 case SND_SOC_DAIFMT_CBC_CFC: 721 break; 722 default: 723 dev_err(component->dev, "Invalid DAI clock provider\n"); 724 return -EINVAL; 725 } 726 727 /* interface format */ 728 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 729 case SND_SOC_DAIFMT_I2S: 730 iface_reg1 |= ADCX140_I2S_MODE_BIT; 731 break; 732 case SND_SOC_DAIFMT_LEFT_J: 733 iface_reg1 |= ADCX140_LEFT_JUST_BIT; 734 break; 735 case SND_SOC_DAIFMT_DSP_A: 736 offset = 1; 737 inverted_bclk = true; 738 break; 739 case SND_SOC_DAIFMT_DSP_B: 740 inverted_bclk = true; 741 break; 742 default: 743 dev_err(component->dev, "Invalid DAI interface format\n"); 744 return -EINVAL; 745 } 746 747 /* signal polarity */ 748 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 749 case SND_SOC_DAIFMT_IB_NF: 750 case SND_SOC_DAIFMT_IB_IF: 751 inverted_bclk = !inverted_bclk; 752 break; 753 case SND_SOC_DAIFMT_NB_IF: 754 iface_reg1 |= ADCX140_FSYNCINV_BIT; 755 break; 756 case SND_SOC_DAIFMT_NB_NF: 757 break; 758 default: 759 dev_err(component->dev, "Invalid DAI clock signal polarity\n"); 760 return -EINVAL; 761 } 762 763 if (inverted_bclk) 764 iface_reg1 |= ADCX140_BCLKINV_BIT; 765 766 adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; 767 768 adcx140_pwr_ctrl(adcx140, false); 769 770 snd_soc_component_update_bits(component, ADCX140_ASI_CFG0, 771 ADCX140_FSYNCINV_BIT | 772 ADCX140_BCLKINV_BIT | 773 ADCX140_ASI_FORMAT_MSK, 774 iface_reg1); 775 snd_soc_component_update_bits(component, ADCX140_MST_CFG0, 776 ADCX140_BCLK_FSYNC_MASTER, iface_reg2); 777 778 /* Configure data offset */ 779 snd_soc_component_update_bits(component, ADCX140_ASI_CFG1, 780 ADCX140_TX_OFFSET_MASK, offset); 781 782 adcx140_pwr_ctrl(adcx140, true); 783 784 return 0; 785 } 786 787 static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai, 788 unsigned int tx_mask, unsigned int rx_mask, 789 int slots, int slot_width) 790 { 791 struct snd_soc_component *component = codec_dai->component; 792 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); 793 unsigned int lsb; 794 795 /* TDM based on DSP mode requires slots to be adjacent */ 796 lsb = __ffs(tx_mask); 797 if ((lsb + 1) != __fls(tx_mask)) { 798 dev_err(component->dev, "Invalid mask, slots must be adjacent\n"); 799 return -EINVAL; 800 } 801 802 switch (slot_width) { 803 case 16: 804 case 20: 805 case 24: 806 case 32: 807 break; 808 default: 809 dev_err(component->dev, "Unsupported slot width %d\n", slot_width); 810 return -EINVAL; 811 } 812 813 adcx140->tdm_delay = lsb; 814 adcx140->slot_width = slot_width; 815 816 return 0; 817 } 818 819 static const struct snd_soc_dai_ops adcx140_dai_ops = { 820 .hw_params = adcx140_hw_params, 821 .set_fmt = adcx140_set_dai_fmt, 822 .set_tdm_slot = adcx140_set_dai_tdm_slot, 823 }; 824 825 static int adcx140_configure_gpo(struct adcx140_priv *adcx140) 826 { 827 u32 gpo_outputs[ADCX140_NUM_GPOS]; 828 u32 gpo_output_val = 0; 829 int ret; 830 int i; 831 832 for (i = 0; i < ADCX140_NUM_GPOS; i++) { 833 ret = device_property_read_u32_array(adcx140->dev, 834 gpo_config_names[i], 835 gpo_outputs, 836 ADCX140_NUM_GPO_CFGS); 837 if (ret) 838 continue; 839 840 if (gpo_outputs[0] > ADCX140_GPO_CFG_MAX) { 841 dev_err(adcx140->dev, "GPO%d config out of range\n", i + 1); 842 return -EINVAL; 843 } 844 845 if (gpo_outputs[1] > ADCX140_GPO_DRV_MAX) { 846 dev_err(adcx140->dev, "GPO%d drive out of range\n", i + 1); 847 return -EINVAL; 848 } 849 850 gpo_output_val = gpo_outputs[0] << ADCX140_GPO_SHIFT | 851 gpo_outputs[1]; 852 ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG0 + i, 853 gpo_output_val); 854 if (ret) 855 return ret; 856 } 857 858 return 0; 859 860 } 861 862 static int adcx140_configure_gpio(struct adcx140_priv *adcx140) 863 { 864 int gpio_count = 0; 865 u32 gpio_outputs[ADCX140_NUM_GPIO_CFGS]; 866 u32 gpio_output_val = 0; 867 int ret; 868 869 gpio_count = device_property_count_u32(adcx140->dev, 870 "ti,gpio-config"); 871 if (gpio_count == 0) 872 return 0; 873 874 if (gpio_count != ADCX140_NUM_GPIO_CFGS) 875 return -EINVAL; 876 877 ret = device_property_read_u32_array(adcx140->dev, "ti,gpio-config", 878 gpio_outputs, gpio_count); 879 if (ret) 880 return ret; 881 882 if (gpio_outputs[0] > ADCX140_GPIO_CFG_MAX) { 883 dev_err(adcx140->dev, "GPIO config out of range\n"); 884 return -EINVAL; 885 } 886 887 if (gpio_outputs[1] > ADCX140_GPIO_DRV_MAX) { 888 dev_err(adcx140->dev, "GPIO drive out of range\n"); 889 return -EINVAL; 890 } 891 892 gpio_output_val = gpio_outputs[0] << ADCX140_GPIO_SHIFT 893 | gpio_outputs[1]; 894 895 return regmap_write(adcx140->regmap, ADCX140_GPIO_CFG0, gpio_output_val); 896 } 897 898 static int adcx140_codec_probe(struct snd_soc_component *component) 899 { 900 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); 901 int sleep_cfg_val = ADCX140_WAKE_DEV; 902 u32 bias_source; 903 u32 vref_source; 904 u8 bias_cfg; 905 int pdm_count; 906 u32 pdm_edges[ADCX140_NUM_PDM_EDGES]; 907 u32 pdm_edge_val = 0; 908 int gpi_count; 909 u32 gpi_inputs[ADCX140_NUM_GPI_PINS]; 910 u32 gpi_input_val = 0; 911 int i; 912 int ret; 913 bool tx_high_z; 914 915 ret = device_property_read_u32(adcx140->dev, "ti,mic-bias-source", 916 &bias_source); 917 if (ret || bias_source > ADCX140_MIC_BIAS_VAL_AVDD) { 918 bias_source = ADCX140_MIC_BIAS_VAL_VREF; 919 adcx140->micbias_vg = false; 920 } else { 921 adcx140->micbias_vg = true; 922 } 923 924 ret = device_property_read_u32(adcx140->dev, "ti,vref-source", 925 &vref_source); 926 if (ret) 927 vref_source = ADCX140_MIC_BIAS_VREF_275V; 928 929 if (vref_source > ADCX140_MIC_BIAS_VREF_1375V) { 930 dev_err(adcx140->dev, "Mic Bias source value is invalid\n"); 931 return -EINVAL; 932 } 933 934 bias_cfg = bias_source << ADCX140_MIC_BIAS_SHIFT | vref_source; 935 936 ret = adcx140_reset(adcx140); 937 if (ret) 938 goto out; 939 940 if (adcx140->supply_areg == NULL) 941 sleep_cfg_val |= ADCX140_AREG_INTERNAL; 942 943 ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val); 944 if (ret) { 945 dev_err(adcx140->dev, "setting sleep config failed %d\n", ret); 946 goto out; 947 } 948 949 /* 8.4.3: Wait >= 1ms after entering active mode. */ 950 usleep_range(1000, 100000); 951 952 pdm_count = device_property_count_u32(adcx140->dev, 953 "ti,pdm-edge-select"); 954 if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) { 955 ret = device_property_read_u32_array(adcx140->dev, 956 "ti,pdm-edge-select", 957 pdm_edges, pdm_count); 958 if (ret) 959 return ret; 960 961 for (i = 0; i < pdm_count; i++) 962 pdm_edge_val |= pdm_edges[i] << (ADCX140_PDM_EDGE_SHIFT - i); 963 964 ret = regmap_write(adcx140->regmap, ADCX140_PDM_CFG, 965 pdm_edge_val); 966 if (ret) 967 return ret; 968 } 969 970 gpi_count = device_property_count_u32(adcx140->dev, "ti,gpi-config"); 971 if (gpi_count <= ADCX140_NUM_GPI_PINS && gpi_count > 0) { 972 ret = device_property_read_u32_array(adcx140->dev, 973 "ti,gpi-config", 974 gpi_inputs, gpi_count); 975 if (ret) 976 return ret; 977 978 gpi_input_val = gpi_inputs[ADCX140_GPI1_INDEX] << ADCX140_GPI_SHIFT | 979 gpi_inputs[ADCX140_GPI2_INDEX]; 980 981 ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG0, 982 gpi_input_val); 983 if (ret) 984 return ret; 985 986 gpi_input_val = gpi_inputs[ADCX140_GPI3_INDEX] << ADCX140_GPI_SHIFT | 987 gpi_inputs[ADCX140_GPI4_INDEX]; 988 989 ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG1, 990 gpi_input_val); 991 if (ret) 992 return ret; 993 } 994 995 ret = adcx140_configure_gpio(adcx140); 996 if (ret) 997 return ret; 998 999 ret = adcx140_configure_gpo(adcx140); 1000 if (ret) 1001 goto out; 1002 1003 ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG, 1004 ADCX140_MIC_BIAS_VAL_MSK | 1005 ADCX140_MIC_BIAS_VREF_MSK, bias_cfg); 1006 if (ret) 1007 dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret); 1008 1009 tx_high_z = device_property_read_bool(adcx140->dev, "ti,asi-tx-drive"); 1010 if (tx_high_z) { 1011 ret = regmap_update_bits(adcx140->regmap, ADCX140_ASI_CFG0, 1012 ADCX140_TX_FILL, ADCX140_TX_FILL); 1013 if (ret) { 1014 dev_err(adcx140->dev, "Setting Tx drive failed %d\n", ret); 1015 goto out; 1016 } 1017 } 1018 1019 adcx140_pwr_ctrl(adcx140, true); 1020 out: 1021 return ret; 1022 } 1023 1024 static int adcx140_set_bias_level(struct snd_soc_component *component, 1025 enum snd_soc_bias_level level) 1026 { 1027 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); 1028 1029 switch (level) { 1030 case SND_SOC_BIAS_ON: 1031 case SND_SOC_BIAS_PREPARE: 1032 case SND_SOC_BIAS_STANDBY: 1033 adcx140_pwr_ctrl(adcx140, true); 1034 break; 1035 case SND_SOC_BIAS_OFF: 1036 adcx140_pwr_ctrl(adcx140, false); 1037 break; 1038 } 1039 1040 return 0; 1041 } 1042 1043 static const struct snd_soc_component_driver soc_codec_driver_adcx140 = { 1044 .probe = adcx140_codec_probe, 1045 .set_bias_level = adcx140_set_bias_level, 1046 .controls = adcx140_snd_controls, 1047 .num_controls = ARRAY_SIZE(adcx140_snd_controls), 1048 .dapm_widgets = adcx140_dapm_widgets, 1049 .num_dapm_widgets = ARRAY_SIZE(adcx140_dapm_widgets), 1050 .dapm_routes = adcx140_audio_map, 1051 .num_dapm_routes = ARRAY_SIZE(adcx140_audio_map), 1052 .suspend_bias_off = 1, 1053 .idle_bias_on = 0, 1054 .use_pmdown_time = 1, 1055 .endianness = 1, 1056 .non_legacy_dai_naming = 1, 1057 }; 1058 1059 static struct snd_soc_dai_driver adcx140_dai_driver[] = { 1060 { 1061 .name = "tlv320adcx140-codec", 1062 .capture = { 1063 .stream_name = "Capture", 1064 .channels_min = 2, 1065 .channels_max = ADCX140_MAX_CHANNELS, 1066 .rates = ADCX140_RATES, 1067 .formats = ADCX140_FORMATS, 1068 }, 1069 .ops = &adcx140_dai_ops, 1070 .symmetric_rate = 1, 1071 } 1072 }; 1073 1074 #ifdef CONFIG_OF 1075 static const struct of_device_id tlv320adcx140_of_match[] = { 1076 { .compatible = "ti,tlv320adc3140" }, 1077 { .compatible = "ti,tlv320adc5140" }, 1078 { .compatible = "ti,tlv320adc6140" }, 1079 {}, 1080 }; 1081 MODULE_DEVICE_TABLE(of, tlv320adcx140_of_match); 1082 #endif 1083 1084 static void adcx140_disable_regulator(void *arg) 1085 { 1086 struct adcx140_priv *adcx140 = arg; 1087 1088 regulator_disable(adcx140->supply_areg); 1089 } 1090 1091 static int adcx140_i2c_probe(struct i2c_client *i2c) 1092 { 1093 struct adcx140_priv *adcx140; 1094 int ret; 1095 1096 adcx140 = devm_kzalloc(&i2c->dev, sizeof(*adcx140), GFP_KERNEL); 1097 if (!adcx140) 1098 return -ENOMEM; 1099 1100 adcx140->dev = &i2c->dev; 1101 1102 adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev, 1103 "reset", GPIOD_OUT_LOW); 1104 if (IS_ERR(adcx140->gpio_reset)) 1105 dev_info(&i2c->dev, "Reset GPIO not defined\n"); 1106 1107 adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev, 1108 "areg"); 1109 if (IS_ERR(adcx140->supply_areg)) { 1110 if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER) 1111 return -EPROBE_DEFER; 1112 1113 adcx140->supply_areg = NULL; 1114 } else { 1115 ret = regulator_enable(adcx140->supply_areg); 1116 if (ret) { 1117 dev_err(adcx140->dev, "Failed to enable areg\n"); 1118 return ret; 1119 } 1120 1121 ret = devm_add_action_or_reset(&i2c->dev, adcx140_disable_regulator, adcx140); 1122 if (ret) 1123 return ret; 1124 } 1125 1126 adcx140->regmap = devm_regmap_init_i2c(i2c, &adcx140_i2c_regmap); 1127 if (IS_ERR(adcx140->regmap)) { 1128 ret = PTR_ERR(adcx140->regmap); 1129 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 1130 ret); 1131 return ret; 1132 } 1133 1134 i2c_set_clientdata(i2c, adcx140); 1135 1136 return devm_snd_soc_register_component(&i2c->dev, 1137 &soc_codec_driver_adcx140, 1138 adcx140_dai_driver, 1); 1139 } 1140 1141 static const struct i2c_device_id adcx140_i2c_id[] = { 1142 { "tlv320adc3140", 0 }, 1143 { "tlv320adc5140", 1 }, 1144 { "tlv320adc6140", 2 }, 1145 {} 1146 }; 1147 MODULE_DEVICE_TABLE(i2c, adcx140_i2c_id); 1148 1149 static struct i2c_driver adcx140_i2c_driver = { 1150 .driver = { 1151 .name = "tlv320adcx140-codec", 1152 .of_match_table = of_match_ptr(tlv320adcx140_of_match), 1153 }, 1154 .probe_new = adcx140_i2c_probe, 1155 .id_table = adcx140_i2c_id, 1156 }; 1157 module_i2c_driver(adcx140_i2c_driver); 1158 1159 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>"); 1160 MODULE_DESCRIPTION("ASoC TLV320ADCX140 CODEC Driver"); 1161 MODULE_LICENSE("GPL v2"); 1162