1 /* 2 * wm8985.c -- WM8985 ALSA SoC Audio driver 3 * 4 * Copyright 2010 Wolfson Microelectronics plc 5 * 6 * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 * 12 * TODO: 13 * o Add OUT3/OUT4 mixer controls. 14 */ 15 16 #include <linux/module.h> 17 #include <linux/moduleparam.h> 18 #include <linux/init.h> 19 #include <linux/delay.h> 20 #include <linux/pm.h> 21 #include <linux/i2c.h> 22 #include <linux/regmap.h> 23 #include <linux/regulator/consumer.h> 24 #include <linux/spi/spi.h> 25 #include <linux/slab.h> 26 #include <sound/core.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/initval.h> 31 #include <sound/tlv.h> 32 33 #include "wm8985.h" 34 35 #define WM8985_NUM_SUPPLIES 4 36 static const char *wm8985_supply_names[WM8985_NUM_SUPPLIES] = { 37 "DCVDD", 38 "DBVDD", 39 "AVDD1", 40 "AVDD2" 41 }; 42 43 static const struct reg_default wm8985_reg_defaults[] = { 44 { 1, 0x0000 }, /* R1 - Power management 1 */ 45 { 2, 0x0000 }, /* R2 - Power management 2 */ 46 { 3, 0x0000 }, /* R3 - Power management 3 */ 47 { 4, 0x0050 }, /* R4 - Audio Interface */ 48 { 5, 0x0000 }, /* R5 - Companding control */ 49 { 6, 0x0140 }, /* R6 - Clock Gen control */ 50 { 7, 0x0000 }, /* R7 - Additional control */ 51 { 8, 0x0000 }, /* R8 - GPIO Control */ 52 { 9, 0x0000 }, /* R9 - Jack Detect Control 1 */ 53 { 10, 0x0000 }, /* R10 - DAC Control */ 54 { 11, 0x00FF }, /* R11 - Left DAC digital Vol */ 55 { 12, 0x00FF }, /* R12 - Right DAC digital vol */ 56 { 13, 0x0000 }, /* R13 - Jack Detect Control 2 */ 57 { 14, 0x0100 }, /* R14 - ADC Control */ 58 { 15, 0x00FF }, /* R15 - Left ADC Digital Vol */ 59 { 16, 0x00FF }, /* R16 - Right ADC Digital Vol */ 60 { 18, 0x012C }, /* R18 - EQ1 - low shelf */ 61 { 19, 0x002C }, /* R19 - EQ2 - peak 1 */ 62 { 20, 0x002C }, /* R20 - EQ3 - peak 2 */ 63 { 21, 0x002C }, /* R21 - EQ4 - peak 3 */ 64 { 22, 0x002C }, /* R22 - EQ5 - high shelf */ 65 { 24, 0x0032 }, /* R24 - DAC Limiter 1 */ 66 { 25, 0x0000 }, /* R25 - DAC Limiter 2 */ 67 { 27, 0x0000 }, /* R27 - Notch Filter 1 */ 68 { 28, 0x0000 }, /* R28 - Notch Filter 2 */ 69 { 29, 0x0000 }, /* R29 - Notch Filter 3 */ 70 { 30, 0x0000 }, /* R30 - Notch Filter 4 */ 71 { 32, 0x0038 }, /* R32 - ALC control 1 */ 72 { 33, 0x000B }, /* R33 - ALC control 2 */ 73 { 34, 0x0032 }, /* R34 - ALC control 3 */ 74 { 35, 0x0000 }, /* R35 - Noise Gate */ 75 { 36, 0x0008 }, /* R36 - PLL N */ 76 { 37, 0x000C }, /* R37 - PLL K 1 */ 77 { 38, 0x0093 }, /* R38 - PLL K 2 */ 78 { 39, 0x00E9 }, /* R39 - PLL K 3 */ 79 { 41, 0x0000 }, /* R41 - 3D control */ 80 { 42, 0x0000 }, /* R42 - OUT4 to ADC */ 81 { 43, 0x0000 }, /* R43 - Beep control */ 82 { 44, 0x0033 }, /* R44 - Input ctrl */ 83 { 45, 0x0010 }, /* R45 - Left INP PGA gain ctrl */ 84 { 46, 0x0010 }, /* R46 - Right INP PGA gain ctrl */ 85 { 47, 0x0100 }, /* R47 - Left ADC BOOST ctrl */ 86 { 48, 0x0100 }, /* R48 - Right ADC BOOST ctrl */ 87 { 49, 0x0002 }, /* R49 - Output ctrl */ 88 { 50, 0x0001 }, /* R50 - Left mixer ctrl */ 89 { 51, 0x0001 }, /* R51 - Right mixer ctrl */ 90 { 52, 0x0039 }, /* R52 - LOUT1 (HP) volume ctrl */ 91 { 53, 0x0039 }, /* R53 - ROUT1 (HP) volume ctrl */ 92 { 54, 0x0039 }, /* R54 - LOUT2 (SPK) volume ctrl */ 93 { 55, 0x0039 }, /* R55 - ROUT2 (SPK) volume ctrl */ 94 { 56, 0x0001 }, /* R56 - OUT3 mixer ctrl */ 95 { 57, 0x0001 }, /* R57 - OUT4 (MONO) mix ctrl */ 96 { 60, 0x0004 }, /* R60 - OUTPUT ctrl */ 97 { 61, 0x0000 }, /* R61 - BIAS CTRL */ 98 }; 99 100 static bool wm8985_writeable(struct device *dev, unsigned int reg) 101 { 102 switch (reg) { 103 case WM8985_SOFTWARE_RESET: 104 case WM8985_POWER_MANAGEMENT_1: 105 case WM8985_POWER_MANAGEMENT_2: 106 case WM8985_POWER_MANAGEMENT_3: 107 case WM8985_AUDIO_INTERFACE: 108 case WM8985_COMPANDING_CONTROL: 109 case WM8985_CLOCK_GEN_CONTROL: 110 case WM8985_ADDITIONAL_CONTROL: 111 case WM8985_GPIO_CONTROL: 112 case WM8985_JACK_DETECT_CONTROL_1: 113 case WM8985_DAC_CONTROL: 114 case WM8985_LEFT_DAC_DIGITAL_VOL: 115 case WM8985_RIGHT_DAC_DIGITAL_VOL: 116 case WM8985_JACK_DETECT_CONTROL_2: 117 case WM8985_ADC_CONTROL: 118 case WM8985_LEFT_ADC_DIGITAL_VOL: 119 case WM8985_RIGHT_ADC_DIGITAL_VOL: 120 case WM8985_EQ1_LOW_SHELF: 121 case WM8985_EQ2_PEAK_1: 122 case WM8985_EQ3_PEAK_2: 123 case WM8985_EQ4_PEAK_3: 124 case WM8985_EQ5_HIGH_SHELF: 125 case WM8985_DAC_LIMITER_1: 126 case WM8985_DAC_LIMITER_2: 127 case WM8985_NOTCH_FILTER_1: 128 case WM8985_NOTCH_FILTER_2: 129 case WM8985_NOTCH_FILTER_3: 130 case WM8985_NOTCH_FILTER_4: 131 case WM8985_ALC_CONTROL_1: 132 case WM8985_ALC_CONTROL_2: 133 case WM8985_ALC_CONTROL_3: 134 case WM8985_NOISE_GATE: 135 case WM8985_PLL_N: 136 case WM8985_PLL_K_1: 137 case WM8985_PLL_K_2: 138 case WM8985_PLL_K_3: 139 case WM8985_3D_CONTROL: 140 case WM8985_OUT4_TO_ADC: 141 case WM8985_BEEP_CONTROL: 142 case WM8985_INPUT_CTRL: 143 case WM8985_LEFT_INP_PGA_GAIN_CTRL: 144 case WM8985_RIGHT_INP_PGA_GAIN_CTRL: 145 case WM8985_LEFT_ADC_BOOST_CTRL: 146 case WM8985_RIGHT_ADC_BOOST_CTRL: 147 case WM8985_OUTPUT_CTRL0: 148 case WM8985_LEFT_MIXER_CTRL: 149 case WM8985_RIGHT_MIXER_CTRL: 150 case WM8985_LOUT1_HP_VOLUME_CTRL: 151 case WM8985_ROUT1_HP_VOLUME_CTRL: 152 case WM8985_LOUT2_SPK_VOLUME_CTRL: 153 case WM8985_ROUT2_SPK_VOLUME_CTRL: 154 case WM8985_OUT3_MIXER_CTRL: 155 case WM8985_OUT4_MONO_MIX_CTRL: 156 case WM8985_OUTPUT_CTRL1: 157 case WM8985_BIAS_CTRL: 158 return true; 159 default: 160 return false; 161 } 162 } 163 164 /* 165 * latch bit 8 of these registers to ensure instant 166 * volume updates 167 */ 168 static const int volume_update_regs[] = { 169 WM8985_LEFT_DAC_DIGITAL_VOL, 170 WM8985_RIGHT_DAC_DIGITAL_VOL, 171 WM8985_LEFT_ADC_DIGITAL_VOL, 172 WM8985_RIGHT_ADC_DIGITAL_VOL, 173 WM8985_LOUT2_SPK_VOLUME_CTRL, 174 WM8985_ROUT2_SPK_VOLUME_CTRL, 175 WM8985_LOUT1_HP_VOLUME_CTRL, 176 WM8985_ROUT1_HP_VOLUME_CTRL, 177 WM8985_LEFT_INP_PGA_GAIN_CTRL, 178 WM8985_RIGHT_INP_PGA_GAIN_CTRL 179 }; 180 181 struct wm8985_priv { 182 struct regmap *regmap; 183 struct regulator_bulk_data supplies[WM8985_NUM_SUPPLIES]; 184 unsigned int sysclk; 185 unsigned int bclk; 186 }; 187 188 static const struct { 189 int div; 190 int ratio; 191 } fs_ratios[] = { 192 { 10, 128 }, 193 { 15, 192 }, 194 { 20, 256 }, 195 { 30, 384 }, 196 { 40, 512 }, 197 { 60, 768 }, 198 { 80, 1024 }, 199 { 120, 1536 } 200 }; 201 202 static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 }; 203 204 static const int bclk_divs[] = { 205 1, 2, 4, 8, 16, 32 206 }; 207 208 static int eqmode_get(struct snd_kcontrol *kcontrol, 209 struct snd_ctl_elem_value *ucontrol); 210 static int eqmode_put(struct snd_kcontrol *kcontrol, 211 struct snd_ctl_elem_value *ucontrol); 212 213 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1); 214 static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1); 215 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); 216 static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0); 217 static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0); 218 static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0); 219 static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0); 220 static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0); 221 static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0); 222 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1); 223 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); 224 static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0); 225 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 226 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0); 227 228 static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" }; 229 static SOC_ENUM_SINGLE_DECL(alc_sel, WM8985_ALC_CONTROL_1, 7, alc_sel_text); 230 231 static const char *alc_mode_text[] = { "ALC", "Limiter" }; 232 static SOC_ENUM_SINGLE_DECL(alc_mode, WM8985_ALC_CONTROL_3, 8, alc_mode_text); 233 234 static const char *filter_mode_text[] = { "Audio", "Application" }; 235 static SOC_ENUM_SINGLE_DECL(filter_mode, WM8985_ADC_CONTROL, 7, 236 filter_mode_text); 237 238 static const char *eq_bw_text[] = { "Narrow", "Wide" }; 239 static const char *eqmode_text[] = { "Capture", "Playback" }; 240 static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text); 241 242 static const char *eq1_cutoff_text[] = { 243 "80Hz", "105Hz", "135Hz", "175Hz" 244 }; 245 static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8985_EQ1_LOW_SHELF, 5, 246 eq1_cutoff_text); 247 static const char *eq2_cutoff_text[] = { 248 "230Hz", "300Hz", "385Hz", "500Hz" 249 }; 250 static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8985_EQ2_PEAK_1, 8, eq_bw_text); 251 static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8985_EQ2_PEAK_1, 5, eq2_cutoff_text); 252 static const char *eq3_cutoff_text[] = { 253 "650Hz", "850Hz", "1.1kHz", "1.4kHz" 254 }; 255 static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8985_EQ3_PEAK_2, 8, eq_bw_text); 256 static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8985_EQ3_PEAK_2, 5, 257 eq3_cutoff_text); 258 static const char *eq4_cutoff_text[] = { 259 "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz" 260 }; 261 static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8985_EQ4_PEAK_3, 8, eq_bw_text); 262 static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8985_EQ4_PEAK_3, 5, eq4_cutoff_text); 263 static const char *eq5_cutoff_text[] = { 264 "5.3kHz", "6.9kHz", "9kHz", "11.7kHz" 265 }; 266 static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8985_EQ5_HIGH_SHELF, 5, 267 eq5_cutoff_text); 268 269 static const char *speaker_mode_text[] = { "Class A/B", "Class D" }; 270 static SOC_ENUM_SINGLE_DECL(speaker_mode, 0x17, 8, speaker_mode_text); 271 272 static const char *depth_3d_text[] = { 273 "Off", 274 "6.67%", 275 "13.3%", 276 "20%", 277 "26.7%", 278 "33.3%", 279 "40%", 280 "46.6%", 281 "53.3%", 282 "60%", 283 "66.7%", 284 "73.3%", 285 "80%", 286 "86.7%", 287 "93.3%", 288 "100%" 289 }; 290 static SOC_ENUM_SINGLE_DECL(depth_3d, WM8985_3D_CONTROL, 0, depth_3d_text); 291 292 static const struct snd_kcontrol_new wm8985_snd_controls[] = { 293 SOC_SINGLE("Digital Loopback Switch", WM8985_COMPANDING_CONTROL, 294 0, 1, 0), 295 296 SOC_ENUM("ALC Capture Function", alc_sel), 297 SOC_SINGLE_TLV("ALC Capture Max Volume", WM8985_ALC_CONTROL_1, 298 3, 7, 0, alc_max_tlv), 299 SOC_SINGLE_TLV("ALC Capture Min Volume", WM8985_ALC_CONTROL_1, 300 0, 7, 0, alc_min_tlv), 301 SOC_SINGLE_TLV("ALC Capture Target Volume", WM8985_ALC_CONTROL_2, 302 0, 15, 0, alc_tar_tlv), 303 SOC_SINGLE("ALC Capture Attack", WM8985_ALC_CONTROL_3, 0, 10, 0), 304 SOC_SINGLE("ALC Capture Hold", WM8985_ALC_CONTROL_2, 4, 10, 0), 305 SOC_SINGLE("ALC Capture Decay", WM8985_ALC_CONTROL_3, 4, 10, 0), 306 SOC_ENUM("ALC Mode", alc_mode), 307 SOC_SINGLE("ALC Capture NG Switch", WM8985_NOISE_GATE, 308 3, 1, 0), 309 SOC_SINGLE("ALC Capture NG Threshold", WM8985_NOISE_GATE, 310 0, 7, 1), 311 312 SOC_DOUBLE_R_TLV("Capture Volume", WM8985_LEFT_ADC_DIGITAL_VOL, 313 WM8985_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv), 314 SOC_DOUBLE_R("Capture PGA ZC Switch", WM8985_LEFT_INP_PGA_GAIN_CTRL, 315 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0), 316 SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8985_LEFT_INP_PGA_GAIN_CTRL, 317 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv), 318 319 SOC_DOUBLE_R_TLV("Capture PGA Boost Volume", 320 WM8985_LEFT_ADC_BOOST_CTRL, WM8985_RIGHT_ADC_BOOST_CTRL, 321 8, 1, 0, pga_boost_tlv), 322 323 SOC_DOUBLE("ADC Inversion Switch", WM8985_ADC_CONTROL, 0, 1, 1, 0), 324 SOC_SINGLE("ADC 128x Oversampling Switch", WM8985_ADC_CONTROL, 8, 1, 0), 325 326 SOC_DOUBLE_R_TLV("Playback Volume", WM8985_LEFT_DAC_DIGITAL_VOL, 327 WM8985_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv), 328 329 SOC_SINGLE("DAC Playback Limiter Switch", WM8985_DAC_LIMITER_1, 8, 1, 0), 330 SOC_SINGLE("DAC Playback Limiter Decay", WM8985_DAC_LIMITER_1, 4, 10, 0), 331 SOC_SINGLE("DAC Playback Limiter Attack", WM8985_DAC_LIMITER_1, 0, 11, 0), 332 SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8985_DAC_LIMITER_2, 333 4, 7, 1, lim_thresh_tlv), 334 SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8985_DAC_LIMITER_2, 335 0, 12, 0, lim_boost_tlv), 336 SOC_DOUBLE("DAC Inversion Switch", WM8985_DAC_CONTROL, 0, 1, 1, 0), 337 SOC_SINGLE("DAC Auto Mute Switch", WM8985_DAC_CONTROL, 2, 1, 0), 338 SOC_SINGLE("DAC 128x Oversampling Switch", WM8985_DAC_CONTROL, 3, 1, 0), 339 340 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8985_LOUT1_HP_VOLUME_CTRL, 341 WM8985_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv), 342 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8985_LOUT1_HP_VOLUME_CTRL, 343 WM8985_ROUT1_HP_VOLUME_CTRL, 7, 1, 0), 344 SOC_DOUBLE_R("Headphone Switch", WM8985_LOUT1_HP_VOLUME_CTRL, 345 WM8985_ROUT1_HP_VOLUME_CTRL, 6, 1, 1), 346 347 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8985_LOUT2_SPK_VOLUME_CTRL, 348 WM8985_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv), 349 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8985_LOUT2_SPK_VOLUME_CTRL, 350 WM8985_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0), 351 SOC_DOUBLE_R("Speaker Switch", WM8985_LOUT2_SPK_VOLUME_CTRL, 352 WM8985_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1), 353 354 SOC_SINGLE("High Pass Filter Switch", WM8985_ADC_CONTROL, 8, 1, 0), 355 SOC_ENUM("High Pass Filter Mode", filter_mode), 356 SOC_SINGLE("High Pass Filter Cutoff", WM8985_ADC_CONTROL, 4, 7, 0), 357 358 SOC_DOUBLE_R_TLV("Aux Bypass Volume", 359 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 6, 7, 0, 360 aux_tlv), 361 362 SOC_DOUBLE_R_TLV("Input PGA Bypass Volume", 363 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 2, 7, 0, 364 bypass_tlv), 365 366 SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put), 367 SOC_ENUM("EQ1 Cutoff", eq1_cutoff), 368 SOC_SINGLE_TLV("EQ1 Volume", WM8985_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv), 369 SOC_ENUM("EQ2 Bandwidth", eq2_bw), 370 SOC_ENUM("EQ2 Cutoff", eq2_cutoff), 371 SOC_SINGLE_TLV("EQ2 Volume", WM8985_EQ2_PEAK_1, 0, 24, 1, eq_tlv), 372 SOC_ENUM("EQ3 Bandwidth", eq3_bw), 373 SOC_ENUM("EQ3 Cutoff", eq3_cutoff), 374 SOC_SINGLE_TLV("EQ3 Volume", WM8985_EQ3_PEAK_2, 0, 24, 1, eq_tlv), 375 SOC_ENUM("EQ4 Bandwidth", eq4_bw), 376 SOC_ENUM("EQ4 Cutoff", eq4_cutoff), 377 SOC_SINGLE_TLV("EQ4 Volume", WM8985_EQ4_PEAK_3, 0, 24, 1, eq_tlv), 378 SOC_ENUM("EQ5 Cutoff", eq5_cutoff), 379 SOC_SINGLE_TLV("EQ5 Volume", WM8985_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv), 380 381 SOC_ENUM("3D Depth", depth_3d), 382 383 SOC_ENUM("Speaker Mode", speaker_mode) 384 }; 385 386 static const struct snd_kcontrol_new left_out_mixer[] = { 387 SOC_DAPM_SINGLE("Line Switch", WM8985_LEFT_MIXER_CTRL, 1, 1, 0), 388 SOC_DAPM_SINGLE("Aux Switch", WM8985_LEFT_MIXER_CTRL, 5, 1, 0), 389 SOC_DAPM_SINGLE("PCM Switch", WM8985_LEFT_MIXER_CTRL, 0, 1, 0), 390 }; 391 392 static const struct snd_kcontrol_new right_out_mixer[] = { 393 SOC_DAPM_SINGLE("Line Switch", WM8985_RIGHT_MIXER_CTRL, 1, 1, 0), 394 SOC_DAPM_SINGLE("Aux Switch", WM8985_RIGHT_MIXER_CTRL, 5, 1, 0), 395 SOC_DAPM_SINGLE("PCM Switch", WM8985_RIGHT_MIXER_CTRL, 0, 1, 0), 396 }; 397 398 static const struct snd_kcontrol_new left_input_mixer[] = { 399 SOC_DAPM_SINGLE("L2 Switch", WM8985_INPUT_CTRL, 2, 1, 0), 400 SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 1, 1, 0), 401 SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 0, 1, 0), 402 }; 403 404 static const struct snd_kcontrol_new right_input_mixer[] = { 405 SOC_DAPM_SINGLE("R2 Switch", WM8985_INPUT_CTRL, 6, 1, 0), 406 SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 5, 1, 0), 407 SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 4, 1, 0), 408 }; 409 410 static const struct snd_kcontrol_new left_boost_mixer[] = { 411 SOC_DAPM_SINGLE_TLV("L2 Volume", WM8985_LEFT_ADC_BOOST_CTRL, 412 4, 7, 0, boost_tlv), 413 SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8985_LEFT_ADC_BOOST_CTRL, 414 0, 7, 0, boost_tlv) 415 }; 416 417 static const struct snd_kcontrol_new right_boost_mixer[] = { 418 SOC_DAPM_SINGLE_TLV("R2 Volume", WM8985_RIGHT_ADC_BOOST_CTRL, 419 4, 7, 0, boost_tlv), 420 SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8985_RIGHT_ADC_BOOST_CTRL, 421 0, 7, 0, boost_tlv) 422 }; 423 424 static const struct snd_soc_dapm_widget wm8985_dapm_widgets[] = { 425 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8985_POWER_MANAGEMENT_3, 426 0, 0), 427 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8985_POWER_MANAGEMENT_3, 428 1, 0), 429 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8985_POWER_MANAGEMENT_2, 430 0, 0), 431 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8985_POWER_MANAGEMENT_2, 432 1, 0), 433 434 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3, 435 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)), 436 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3, 437 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)), 438 439 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8985_POWER_MANAGEMENT_2, 440 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)), 441 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8985_POWER_MANAGEMENT_2, 442 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)), 443 444 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2, 445 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)), 446 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2, 447 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)), 448 449 SND_SOC_DAPM_PGA("Left Capture PGA", WM8985_LEFT_INP_PGA_GAIN_CTRL, 450 6, 1, NULL, 0), 451 SND_SOC_DAPM_PGA("Right Capture PGA", WM8985_RIGHT_INP_PGA_GAIN_CTRL, 452 6, 1, NULL, 0), 453 454 SND_SOC_DAPM_PGA("Left Headphone Out", WM8985_POWER_MANAGEMENT_2, 455 7, 0, NULL, 0), 456 SND_SOC_DAPM_PGA("Right Headphone Out", WM8985_POWER_MANAGEMENT_2, 457 8, 0, NULL, 0), 458 459 SND_SOC_DAPM_PGA("Left Speaker Out", WM8985_POWER_MANAGEMENT_3, 460 5, 0, NULL, 0), 461 SND_SOC_DAPM_PGA("Right Speaker Out", WM8985_POWER_MANAGEMENT_3, 462 6, 0, NULL, 0), 463 464 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8985_POWER_MANAGEMENT_1, 4, 0, 465 NULL, 0), 466 467 SND_SOC_DAPM_INPUT("LIN"), 468 SND_SOC_DAPM_INPUT("LIP"), 469 SND_SOC_DAPM_INPUT("RIN"), 470 SND_SOC_DAPM_INPUT("RIP"), 471 SND_SOC_DAPM_INPUT("AUXL"), 472 SND_SOC_DAPM_INPUT("AUXR"), 473 SND_SOC_DAPM_INPUT("L2"), 474 SND_SOC_DAPM_INPUT("R2"), 475 SND_SOC_DAPM_OUTPUT("HPL"), 476 SND_SOC_DAPM_OUTPUT("HPR"), 477 SND_SOC_DAPM_OUTPUT("SPKL"), 478 SND_SOC_DAPM_OUTPUT("SPKR") 479 }; 480 481 static const struct snd_soc_dapm_route wm8985_dapm_routes[] = { 482 { "Right Output Mixer", "PCM Switch", "Right DAC" }, 483 { "Right Output Mixer", "Aux Switch", "AUXR" }, 484 { "Right Output Mixer", "Line Switch", "Right Boost Mixer" }, 485 486 { "Left Output Mixer", "PCM Switch", "Left DAC" }, 487 { "Left Output Mixer", "Aux Switch", "AUXL" }, 488 { "Left Output Mixer", "Line Switch", "Left Boost Mixer" }, 489 490 { "Right Headphone Out", NULL, "Right Output Mixer" }, 491 { "HPR", NULL, "Right Headphone Out" }, 492 493 { "Left Headphone Out", NULL, "Left Output Mixer" }, 494 { "HPL", NULL, "Left Headphone Out" }, 495 496 { "Right Speaker Out", NULL, "Right Output Mixer" }, 497 { "SPKR", NULL, "Right Speaker Out" }, 498 499 { "Left Speaker Out", NULL, "Left Output Mixer" }, 500 { "SPKL", NULL, "Left Speaker Out" }, 501 502 { "Right ADC", NULL, "Right Boost Mixer" }, 503 504 { "Right Boost Mixer", "AUXR Volume", "AUXR" }, 505 { "Right Boost Mixer", NULL, "Right Capture PGA" }, 506 { "Right Boost Mixer", "R2 Volume", "R2" }, 507 508 { "Left ADC", NULL, "Left Boost Mixer" }, 509 510 { "Left Boost Mixer", "AUXL Volume", "AUXL" }, 511 { "Left Boost Mixer", NULL, "Left Capture PGA" }, 512 { "Left Boost Mixer", "L2 Volume", "L2" }, 513 514 { "Right Capture PGA", NULL, "Right Input Mixer" }, 515 { "Left Capture PGA", NULL, "Left Input Mixer" }, 516 517 { "Right Input Mixer", "R2 Switch", "R2" }, 518 { "Right Input Mixer", "MicN Switch", "RIN" }, 519 { "Right Input Mixer", "MicP Switch", "RIP" }, 520 521 { "Left Input Mixer", "L2 Switch", "L2" }, 522 { "Left Input Mixer", "MicN Switch", "LIN" }, 523 { "Left Input Mixer", "MicP Switch", "LIP" }, 524 }; 525 526 static int eqmode_get(struct snd_kcontrol *kcontrol, 527 struct snd_ctl_elem_value *ucontrol) 528 { 529 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 530 unsigned int reg; 531 532 reg = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF); 533 if (reg & WM8985_EQ3DMODE) 534 ucontrol->value.integer.value[0] = 1; 535 else 536 ucontrol->value.integer.value[0] = 0; 537 538 return 0; 539 } 540 541 static int eqmode_put(struct snd_kcontrol *kcontrol, 542 struct snd_ctl_elem_value *ucontrol) 543 { 544 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 545 unsigned int regpwr2, regpwr3; 546 unsigned int reg_eq; 547 548 if (ucontrol->value.integer.value[0] != 0 549 && ucontrol->value.integer.value[0] != 1) 550 return -EINVAL; 551 552 reg_eq = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF); 553 switch ((reg_eq & WM8985_EQ3DMODE) >> WM8985_EQ3DMODE_SHIFT) { 554 case 0: 555 if (!ucontrol->value.integer.value[0]) 556 return 0; 557 break; 558 case 1: 559 if (ucontrol->value.integer.value[0]) 560 return 0; 561 break; 562 } 563 564 regpwr2 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_2); 565 regpwr3 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_3); 566 /* disable the DACs and ADCs */ 567 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_2, 568 WM8985_ADCENR_MASK | WM8985_ADCENL_MASK, 0); 569 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_3, 570 WM8985_DACENR_MASK | WM8985_DACENL_MASK, 0); 571 snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL, 572 WM8985_M128ENB_MASK, WM8985_M128ENB); 573 /* set the desired eqmode */ 574 snd_soc_update_bits(codec, WM8985_EQ1_LOW_SHELF, 575 WM8985_EQ3DMODE_MASK, 576 ucontrol->value.integer.value[0] 577 << WM8985_EQ3DMODE_SHIFT); 578 /* restore DAC/ADC configuration */ 579 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, regpwr2); 580 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, regpwr3); 581 return 0; 582 } 583 584 static int wm8985_reset(struct snd_soc_codec *codec) 585 { 586 return snd_soc_write(codec, WM8985_SOFTWARE_RESET, 0x0); 587 } 588 589 static int wm8985_dac_mute(struct snd_soc_dai *dai, int mute) 590 { 591 struct snd_soc_codec *codec = dai->codec; 592 593 return snd_soc_update_bits(codec, WM8985_DAC_CONTROL, 594 WM8985_SOFTMUTE_MASK, 595 !!mute << WM8985_SOFTMUTE_SHIFT); 596 } 597 598 static int wm8985_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 599 { 600 struct snd_soc_codec *codec; 601 u16 format, master, bcp, lrp; 602 603 codec = dai->codec; 604 605 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 606 case SND_SOC_DAIFMT_I2S: 607 format = 0x2; 608 break; 609 case SND_SOC_DAIFMT_RIGHT_J: 610 format = 0x0; 611 break; 612 case SND_SOC_DAIFMT_LEFT_J: 613 format = 0x1; 614 break; 615 case SND_SOC_DAIFMT_DSP_A: 616 case SND_SOC_DAIFMT_DSP_B: 617 format = 0x3; 618 break; 619 default: 620 dev_err(dai->dev, "Unknown dai format\n"); 621 return -EINVAL; 622 } 623 624 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE, 625 WM8985_FMT_MASK, format << WM8985_FMT_SHIFT); 626 627 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 628 case SND_SOC_DAIFMT_CBM_CFM: 629 master = 1; 630 break; 631 case SND_SOC_DAIFMT_CBS_CFS: 632 master = 0; 633 break; 634 default: 635 dev_err(dai->dev, "Unknown master/slave configuration\n"); 636 return -EINVAL; 637 } 638 639 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 640 WM8985_MS_MASK, master << WM8985_MS_SHIFT); 641 642 /* frame inversion is not valid for dsp modes */ 643 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 644 case SND_SOC_DAIFMT_DSP_A: 645 case SND_SOC_DAIFMT_DSP_B: 646 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 647 case SND_SOC_DAIFMT_IB_IF: 648 case SND_SOC_DAIFMT_NB_IF: 649 return -EINVAL; 650 default: 651 break; 652 } 653 break; 654 default: 655 break; 656 } 657 658 bcp = lrp = 0; 659 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 660 case SND_SOC_DAIFMT_NB_NF: 661 break; 662 case SND_SOC_DAIFMT_IB_IF: 663 bcp = lrp = 1; 664 break; 665 case SND_SOC_DAIFMT_IB_NF: 666 bcp = 1; 667 break; 668 case SND_SOC_DAIFMT_NB_IF: 669 lrp = 1; 670 break; 671 default: 672 dev_err(dai->dev, "Unknown polarity configuration\n"); 673 return -EINVAL; 674 } 675 676 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE, 677 WM8985_LRP_MASK, lrp << WM8985_LRP_SHIFT); 678 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE, 679 WM8985_BCP_MASK, bcp << WM8985_BCP_SHIFT); 680 return 0; 681 } 682 683 static int wm8985_hw_params(struct snd_pcm_substream *substream, 684 struct snd_pcm_hw_params *params, 685 struct snd_soc_dai *dai) 686 { 687 int i; 688 struct snd_soc_codec *codec; 689 struct wm8985_priv *wm8985; 690 u16 blen, srate_idx; 691 unsigned int tmp; 692 int srate_best; 693 694 codec = dai->codec; 695 wm8985 = snd_soc_codec_get_drvdata(codec); 696 697 wm8985->bclk = snd_soc_params_to_bclk(params); 698 if ((int)wm8985->bclk < 0) 699 return wm8985->bclk; 700 701 switch (params_width(params)) { 702 case 16: 703 blen = 0x0; 704 break; 705 case 20: 706 blen = 0x1; 707 break; 708 case 24: 709 blen = 0x2; 710 break; 711 case 32: 712 blen = 0x3; 713 break; 714 default: 715 dev_err(dai->dev, "Unsupported word length %u\n", 716 params_width(params)); 717 return -EINVAL; 718 } 719 720 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE, 721 WM8985_WL_MASK, blen << WM8985_WL_SHIFT); 722 723 /* 724 * match to the nearest possible sample rate and rely 725 * on the array index to configure the SR register 726 */ 727 srate_idx = 0; 728 srate_best = abs(srates[0] - params_rate(params)); 729 for (i = 1; i < ARRAY_SIZE(srates); ++i) { 730 if (abs(srates[i] - params_rate(params)) >= srate_best) 731 continue; 732 srate_idx = i; 733 srate_best = abs(srates[i] - params_rate(params)); 734 } 735 736 dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]); 737 snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL, 738 WM8985_SR_MASK, srate_idx << WM8985_SR_SHIFT); 739 740 dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8985->bclk); 741 dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8985->sysclk); 742 743 for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) { 744 if (wm8985->sysclk / params_rate(params) 745 == fs_ratios[i].ratio) 746 break; 747 } 748 749 if (i == ARRAY_SIZE(fs_ratios)) { 750 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n", 751 wm8985->sysclk, params_rate(params)); 752 return -EINVAL; 753 } 754 755 dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio); 756 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 757 WM8985_MCLKDIV_MASK, i << WM8985_MCLKDIV_SHIFT); 758 759 /* select the appropriate bclk divider */ 760 tmp = (wm8985->sysclk / fs_ratios[i].div) * 10; 761 for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) { 762 if (wm8985->bclk == tmp / bclk_divs[i]) 763 break; 764 } 765 766 if (i == ARRAY_SIZE(bclk_divs)) { 767 dev_err(dai->dev, "No matching BCLK divider found\n"); 768 return -EINVAL; 769 } 770 771 dev_dbg(dai->dev, "BCLK div = %d\n", i); 772 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 773 WM8985_BCLKDIV_MASK, i << WM8985_BCLKDIV_SHIFT); 774 return 0; 775 } 776 777 struct pll_div { 778 u32 div2:1; 779 u32 n:4; 780 u32 k:24; 781 }; 782 783 #define FIXED_PLL_SIZE ((1ULL << 24) * 10) 784 static int pll_factors(struct pll_div *pll_div, unsigned int target, 785 unsigned int source) 786 { 787 u64 Kpart; 788 unsigned long int K, Ndiv, Nmod; 789 790 pll_div->div2 = 0; 791 Ndiv = target / source; 792 if (Ndiv < 6) { 793 source >>= 1; 794 pll_div->div2 = 1; 795 Ndiv = target / source; 796 } 797 798 if (Ndiv < 6 || Ndiv > 12) { 799 printk(KERN_ERR "%s: WM8985 N value is not within" 800 " the recommended range: %lu\n", __func__, Ndiv); 801 return -EINVAL; 802 } 803 pll_div->n = Ndiv; 804 805 Nmod = target % source; 806 Kpart = FIXED_PLL_SIZE * (u64)Nmod; 807 808 do_div(Kpart, source); 809 810 K = Kpart & 0xffffffff; 811 if ((K % 10) >= 5) 812 K += 5; 813 K /= 10; 814 pll_div->k = K; 815 816 return 0; 817 } 818 819 static int wm8985_set_pll(struct snd_soc_dai *dai, int pll_id, 820 int source, unsigned int freq_in, 821 unsigned int freq_out) 822 { 823 int ret; 824 struct snd_soc_codec *codec; 825 struct pll_div pll_div; 826 827 codec = dai->codec; 828 if (!freq_in || !freq_out) { 829 /* disable the PLL */ 830 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 831 WM8985_PLLEN_MASK, 0); 832 } else { 833 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in); 834 if (ret) 835 return ret; 836 837 /* set PLLN and PRESCALE */ 838 snd_soc_write(codec, WM8985_PLL_N, 839 (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT) 840 | pll_div.n); 841 /* set PLLK */ 842 snd_soc_write(codec, WM8985_PLL_K_3, pll_div.k & 0x1ff); 843 snd_soc_write(codec, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff); 844 snd_soc_write(codec, WM8985_PLL_K_1, (pll_div.k >> 18)); 845 /* set the source of the clock to be the PLL */ 846 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 847 WM8985_CLKSEL_MASK, WM8985_CLKSEL); 848 /* enable the PLL */ 849 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 850 WM8985_PLLEN_MASK, WM8985_PLLEN); 851 } 852 return 0; 853 } 854 855 static int wm8985_set_sysclk(struct snd_soc_dai *dai, 856 int clk_id, unsigned int freq, int dir) 857 { 858 struct snd_soc_codec *codec; 859 struct wm8985_priv *wm8985; 860 861 codec = dai->codec; 862 wm8985 = snd_soc_codec_get_drvdata(codec); 863 864 switch (clk_id) { 865 case WM8985_CLKSRC_MCLK: 866 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 867 WM8985_CLKSEL_MASK, 0); 868 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 869 WM8985_PLLEN_MASK, 0); 870 break; 871 case WM8985_CLKSRC_PLL: 872 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL, 873 WM8985_CLKSEL_MASK, WM8985_CLKSEL); 874 break; 875 default: 876 dev_err(dai->dev, "Unknown clock source %d\n", clk_id); 877 return -EINVAL; 878 } 879 880 wm8985->sysclk = freq; 881 return 0; 882 } 883 884 static int wm8985_set_bias_level(struct snd_soc_codec *codec, 885 enum snd_soc_bias_level level) 886 { 887 int ret; 888 struct wm8985_priv *wm8985; 889 890 wm8985 = snd_soc_codec_get_drvdata(codec); 891 switch (level) { 892 case SND_SOC_BIAS_ON: 893 case SND_SOC_BIAS_PREPARE: 894 /* VMID at 75k */ 895 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 896 WM8985_VMIDSEL_MASK, 897 1 << WM8985_VMIDSEL_SHIFT); 898 break; 899 case SND_SOC_BIAS_STANDBY: 900 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 901 ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies), 902 wm8985->supplies); 903 if (ret) { 904 dev_err(codec->dev, 905 "Failed to enable supplies: %d\n", 906 ret); 907 return ret; 908 } 909 910 regcache_sync(wm8985->regmap); 911 912 /* enable anti-pop features */ 913 snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC, 914 WM8985_POBCTRL_MASK, 915 WM8985_POBCTRL); 916 /* enable thermal shutdown */ 917 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0, 918 WM8985_TSDEN_MASK, WM8985_TSDEN); 919 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0, 920 WM8985_TSOPCTRL_MASK, 921 WM8985_TSOPCTRL); 922 /* enable BIASEN */ 923 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 924 WM8985_BIASEN_MASK, WM8985_BIASEN); 925 /* VMID at 75k */ 926 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 927 WM8985_VMIDSEL_MASK, 928 1 << WM8985_VMIDSEL_SHIFT); 929 msleep(500); 930 /* disable anti-pop features */ 931 snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC, 932 WM8985_POBCTRL_MASK, 0); 933 } 934 /* VMID at 300k */ 935 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 936 WM8985_VMIDSEL_MASK, 937 2 << WM8985_VMIDSEL_SHIFT); 938 break; 939 case SND_SOC_BIAS_OFF: 940 /* disable thermal shutdown */ 941 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0, 942 WM8985_TSOPCTRL_MASK, 0); 943 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0, 944 WM8985_TSDEN_MASK, 0); 945 /* disable VMIDSEL and BIASEN */ 946 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1, 947 WM8985_VMIDSEL_MASK | WM8985_BIASEN_MASK, 948 0); 949 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_1, 0); 950 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, 0); 951 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, 0); 952 953 regcache_mark_dirty(wm8985->regmap); 954 955 regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies), 956 wm8985->supplies); 957 break; 958 } 959 960 return 0; 961 } 962 963 static int wm8985_probe(struct snd_soc_codec *codec) 964 { 965 size_t i; 966 struct wm8985_priv *wm8985; 967 int ret; 968 969 wm8985 = snd_soc_codec_get_drvdata(codec); 970 971 for (i = 0; i < ARRAY_SIZE(wm8985->supplies); i++) 972 wm8985->supplies[i].supply = wm8985_supply_names[i]; 973 974 ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8985->supplies), 975 wm8985->supplies); 976 if (ret) { 977 dev_err(codec->dev, "Failed to request supplies: %d\n", ret); 978 return ret; 979 } 980 981 ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies), 982 wm8985->supplies); 983 if (ret) { 984 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); 985 return ret; 986 } 987 988 ret = wm8985_reset(codec); 989 if (ret < 0) { 990 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 991 goto err_reg_enable; 992 } 993 994 /* latch volume update bits */ 995 for (i = 0; i < ARRAY_SIZE(volume_update_regs); ++i) 996 snd_soc_update_bits(codec, volume_update_regs[i], 997 0x100, 0x100); 998 /* enable BIASCUT */ 999 snd_soc_update_bits(codec, WM8985_BIAS_CTRL, WM8985_BIASCUT, 1000 WM8985_BIASCUT); 1001 1002 return 0; 1003 1004 err_reg_enable: 1005 regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies), wm8985->supplies); 1006 return ret; 1007 } 1008 1009 static const struct snd_soc_dai_ops wm8985_dai_ops = { 1010 .digital_mute = wm8985_dac_mute, 1011 .hw_params = wm8985_hw_params, 1012 .set_fmt = wm8985_set_fmt, 1013 .set_sysclk = wm8985_set_sysclk, 1014 .set_pll = wm8985_set_pll 1015 }; 1016 1017 #define WM8985_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 1018 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 1019 1020 static struct snd_soc_dai_driver wm8985_dai = { 1021 .name = "wm8985-hifi", 1022 .playback = { 1023 .stream_name = "Playback", 1024 .channels_min = 2, 1025 .channels_max = 2, 1026 .rates = SNDRV_PCM_RATE_8000_48000, 1027 .formats = WM8985_FORMATS, 1028 }, 1029 .capture = { 1030 .stream_name = "Capture", 1031 .channels_min = 2, 1032 .channels_max = 2, 1033 .rates = SNDRV_PCM_RATE_8000_48000, 1034 .formats = WM8985_FORMATS, 1035 }, 1036 .ops = &wm8985_dai_ops, 1037 .symmetric_rates = 1 1038 }; 1039 1040 static struct snd_soc_codec_driver soc_codec_dev_wm8985 = { 1041 .probe = wm8985_probe, 1042 .set_bias_level = wm8985_set_bias_level, 1043 .suspend_bias_off = true, 1044 1045 .controls = wm8985_snd_controls, 1046 .num_controls = ARRAY_SIZE(wm8985_snd_controls), 1047 .dapm_widgets = wm8985_dapm_widgets, 1048 .num_dapm_widgets = ARRAY_SIZE(wm8985_dapm_widgets), 1049 .dapm_routes = wm8985_dapm_routes, 1050 .num_dapm_routes = ARRAY_SIZE(wm8985_dapm_routes), 1051 }; 1052 1053 static const struct regmap_config wm8985_regmap = { 1054 .reg_bits = 7, 1055 .val_bits = 9, 1056 1057 .max_register = WM8985_MAX_REGISTER, 1058 .writeable_reg = wm8985_writeable, 1059 1060 .cache_type = REGCACHE_RBTREE, 1061 .reg_defaults = wm8985_reg_defaults, 1062 .num_reg_defaults = ARRAY_SIZE(wm8985_reg_defaults), 1063 }; 1064 1065 #if defined(CONFIG_SPI_MASTER) 1066 static int wm8985_spi_probe(struct spi_device *spi) 1067 { 1068 struct wm8985_priv *wm8985; 1069 int ret; 1070 1071 wm8985 = devm_kzalloc(&spi->dev, sizeof *wm8985, GFP_KERNEL); 1072 if (!wm8985) 1073 return -ENOMEM; 1074 1075 spi_set_drvdata(spi, wm8985); 1076 1077 wm8985->regmap = devm_regmap_init_spi(spi, &wm8985_regmap); 1078 if (IS_ERR(wm8985->regmap)) { 1079 ret = PTR_ERR(wm8985->regmap); 1080 dev_err(&spi->dev, "Failed to allocate register map: %d\n", 1081 ret); 1082 return ret; 1083 } 1084 1085 ret = snd_soc_register_codec(&spi->dev, 1086 &soc_codec_dev_wm8985, &wm8985_dai, 1); 1087 return ret; 1088 } 1089 1090 static int wm8985_spi_remove(struct spi_device *spi) 1091 { 1092 snd_soc_unregister_codec(&spi->dev); 1093 return 0; 1094 } 1095 1096 static struct spi_driver wm8985_spi_driver = { 1097 .driver = { 1098 .name = "wm8985", 1099 .owner = THIS_MODULE, 1100 }, 1101 .probe = wm8985_spi_probe, 1102 .remove = wm8985_spi_remove 1103 }; 1104 #endif 1105 1106 #if IS_ENABLED(CONFIG_I2C) 1107 static int wm8985_i2c_probe(struct i2c_client *i2c, 1108 const struct i2c_device_id *id) 1109 { 1110 struct wm8985_priv *wm8985; 1111 int ret; 1112 1113 wm8985 = devm_kzalloc(&i2c->dev, sizeof *wm8985, GFP_KERNEL); 1114 if (!wm8985) 1115 return -ENOMEM; 1116 1117 i2c_set_clientdata(i2c, wm8985); 1118 1119 wm8985->regmap = devm_regmap_init_i2c(i2c, &wm8985_regmap); 1120 if (IS_ERR(wm8985->regmap)) { 1121 ret = PTR_ERR(wm8985->regmap); 1122 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 1123 ret); 1124 return ret; 1125 } 1126 1127 ret = snd_soc_register_codec(&i2c->dev, 1128 &soc_codec_dev_wm8985, &wm8985_dai, 1); 1129 return ret; 1130 } 1131 1132 static int wm8985_i2c_remove(struct i2c_client *i2c) 1133 { 1134 snd_soc_unregister_codec(&i2c->dev); 1135 return 0; 1136 } 1137 1138 static const struct i2c_device_id wm8985_i2c_id[] = { 1139 { "wm8985", 0 }, 1140 { } 1141 }; 1142 MODULE_DEVICE_TABLE(i2c, wm8985_i2c_id); 1143 1144 static struct i2c_driver wm8985_i2c_driver = { 1145 .driver = { 1146 .name = "wm8985", 1147 }, 1148 .probe = wm8985_i2c_probe, 1149 .remove = wm8985_i2c_remove, 1150 .id_table = wm8985_i2c_id 1151 }; 1152 #endif 1153 1154 static int __init wm8985_modinit(void) 1155 { 1156 int ret = 0; 1157 1158 #if IS_ENABLED(CONFIG_I2C) 1159 ret = i2c_add_driver(&wm8985_i2c_driver); 1160 if (ret) { 1161 printk(KERN_ERR "Failed to register wm8985 I2C driver: %d\n", 1162 ret); 1163 } 1164 #endif 1165 #if defined(CONFIG_SPI_MASTER) 1166 ret = spi_register_driver(&wm8985_spi_driver); 1167 if (ret != 0) { 1168 printk(KERN_ERR "Failed to register wm8985 SPI driver: %d\n", 1169 ret); 1170 } 1171 #endif 1172 return ret; 1173 } 1174 module_init(wm8985_modinit); 1175 1176 static void __exit wm8985_exit(void) 1177 { 1178 #if IS_ENABLED(CONFIG_I2C) 1179 i2c_del_driver(&wm8985_i2c_driver); 1180 #endif 1181 #if defined(CONFIG_SPI_MASTER) 1182 spi_unregister_driver(&wm8985_spi_driver); 1183 #endif 1184 } 1185 module_exit(wm8985_exit); 1186 1187 MODULE_DESCRIPTION("ASoC WM8985 driver"); 1188 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); 1189 MODULE_LICENSE("GPL"); 1190