sound/soc/codecs/wm8985.c

   1 /*
   2  * wm8985.c  --  WM8985 / WM8758 ALSA SoC Audio driver
   3  *
   4  * Copyright 2010 Wolfson Microelectronics plc
   5  * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
   6  *
   7  * WM8758 support:
   8  * Copyright: 2016 Barix AG
   9  * Author: Petr Kulhavy <petr@barix.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * TODO:
  16  *  o Add OUT3/OUT4 mixer controls.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/pm.h>
  24 #include <linux/i2c.h>
  25 #include <linux/regmap.h>
  26 #include <linux/regulator/consumer.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/slab.h>
  29 #include <sound/core.h>
  30 #include <sound/pcm.h>
  31 #include <sound/pcm_params.h>
  32 #include <sound/soc.h>
  33 #include <sound/initval.h>
  34 #include <sound/tlv.h>
  35
  36 #include "wm8985.h"
  37
  38 #define WM8985_NUM_SUPPLIES 4
  39 static const char *wm8985_supply_names[WM8985_NUM_SUPPLIES] = {
  40         "DCVDD",
  41         "DBVDD",
  42         "AVDD1",
  43         "AVDD2"
  44 };
  45
  46 enum wm8985_type {
  47         WM8985,
  48         WM8758,
  49 };
  50
  51 static const struct reg_default wm8985_reg_defaults[] = {
  52         { 1,  0x0000 },     /* R1  - Power management 1 */
  53         { 2,  0x0000 },     /* R2  - Power management 2 */
  54         { 3,  0x0000 },     /* R3  - Power management 3 */
  55         { 4,  0x0050 },     /* R4  - Audio Interface */
  56         { 5,  0x0000 },     /* R5  - Companding control */
  57         { 6,  0x0140 },     /* R6  - Clock Gen control */
  58         { 7,  0x0000 },     /* R7  - Additional control */
  59         { 8,  0x0000 },     /* R8  - GPIO Control */
  60         { 9,  0x0000 },     /* R9  - Jack Detect Control 1 */
  61         { 10, 0x0000 },     /* R10 - DAC Control */
  62         { 11, 0x00FF },     /* R11 - Left DAC digital Vol */
  63         { 12, 0x00FF },     /* R12 - Right DAC digital vol */
  64         { 13, 0x0000 },     /* R13 - Jack Detect Control 2 */
  65         { 14, 0x0100 },     /* R14 - ADC Control */
  66         { 15, 0x00FF },     /* R15 - Left ADC Digital Vol */
  67         { 16, 0x00FF },     /* R16 - Right ADC Digital Vol */
  68         { 18, 0x012C },     /* R18 - EQ1 - low shelf */
  69         { 19, 0x002C },     /* R19 - EQ2 - peak 1 */
  70         { 20, 0x002C },     /* R20 - EQ3 - peak 2 */
  71         { 21, 0x002C },     /* R21 - EQ4 - peak 3 */
  72         { 22, 0x002C },     /* R22 - EQ5 - high shelf */
  73         { 24, 0x0032 },     /* R24 - DAC Limiter 1 */
  74         { 25, 0x0000 },     /* R25 - DAC Limiter 2 */
  75         { 27, 0x0000 },     /* R27 - Notch Filter 1 */
  76         { 28, 0x0000 },     /* R28 - Notch Filter 2 */
  77         { 29, 0x0000 },     /* R29 - Notch Filter 3 */
  78         { 30, 0x0000 },     /* R30 - Notch Filter 4 */
  79         { 32, 0x0038 },     /* R32 - ALC control 1 */
  80         { 33, 0x000B },     /* R33 - ALC control 2 */
  81         { 34, 0x0032 },     /* R34 - ALC control 3 */
  82         { 35, 0x0000 },     /* R35 - Noise Gate */
  83         { 36, 0x0008 },     /* R36 - PLL N */
  84         { 37, 0x000C },     /* R37 - PLL K 1 */
  85         { 38, 0x0093 },     /* R38 - PLL K 2 */
  86         { 39, 0x00E9 },     /* R39 - PLL K 3 */
  87         { 41, 0x0000 },     /* R41 - 3D control */
  88         { 42, 0x0000 },     /* R42 - OUT4 to ADC */
  89         { 43, 0x0000 },     /* R43 - Beep control */
  90         { 44, 0x0033 },     /* R44 - Input ctrl */
  91         { 45, 0x0010 },     /* R45 - Left INP PGA gain ctrl */
  92         { 46, 0x0010 },     /* R46 - Right INP PGA gain ctrl */
  93         { 47, 0x0100 },     /* R47 - Left ADC BOOST ctrl */
  94         { 48, 0x0100 },     /* R48 - Right ADC BOOST ctrl */
  95         { 49, 0x0002 },     /* R49 - Output ctrl */
  96         { 50, 0x0001 },     /* R50 - Left mixer ctrl */
  97         { 51, 0x0001 },     /* R51 - Right mixer ctrl */
  98         { 52, 0x0039 },     /* R52 - LOUT1 (HP) volume ctrl */
  99         { 53, 0x0039 },     /* R53 - ROUT1 (HP) volume ctrl */
 100         { 54, 0x0039 },     /* R54 - LOUT2 (SPK) volume ctrl */
 101         { 55, 0x0039 },     /* R55 - ROUT2 (SPK) volume ctrl */
 102         { 56, 0x0001 },     /* R56 - OUT3 mixer ctrl */
 103         { 57, 0x0001 },     /* R57 - OUT4 (MONO) mix ctrl */
 104         { 60, 0x0004 },     /* R60 - OUTPUT ctrl */
 105         { 61, 0x0000 },     /* R61 - BIAS CTRL */
 106 };
 107
 108 static bool wm8985_writeable(struct device *dev, unsigned int reg)
 109 {
 110         switch (reg) {
 111         case WM8985_SOFTWARE_RESET:
 112         case WM8985_POWER_MANAGEMENT_1:
 113         case WM8985_POWER_MANAGEMENT_2:
 114         case WM8985_POWER_MANAGEMENT_3:
 115         case WM8985_AUDIO_INTERFACE:
 116         case WM8985_COMPANDING_CONTROL:
 117         case WM8985_CLOCK_GEN_CONTROL:
 118         case WM8985_ADDITIONAL_CONTROL:
 119         case WM8985_GPIO_CONTROL:
 120         case WM8985_JACK_DETECT_CONTROL_1:
 121         case WM8985_DAC_CONTROL:
 122         case WM8985_LEFT_DAC_DIGITAL_VOL:
 123         case WM8985_RIGHT_DAC_DIGITAL_VOL:
 124         case WM8985_JACK_DETECT_CONTROL_2:
 125         case WM8985_ADC_CONTROL:
 126         case WM8985_LEFT_ADC_DIGITAL_VOL:
 127         case WM8985_RIGHT_ADC_DIGITAL_VOL:
 128         case WM8985_EQ1_LOW_SHELF:
 129         case WM8985_EQ2_PEAK_1:
 130         case WM8985_EQ3_PEAK_2:
 131         case WM8985_EQ4_PEAK_3:
 132         case WM8985_EQ5_HIGH_SHELF:
 133         case WM8985_DAC_LIMITER_1:
 134         case WM8985_DAC_LIMITER_2:
 135         case WM8985_NOTCH_FILTER_1:
 136         case WM8985_NOTCH_FILTER_2:
 137         case WM8985_NOTCH_FILTER_3:
 138         case WM8985_NOTCH_FILTER_4:
 139         case WM8985_ALC_CONTROL_1:
 140         case WM8985_ALC_CONTROL_2:
 141         case WM8985_ALC_CONTROL_3:
 142         case WM8985_NOISE_GATE:
 143         case WM8985_PLL_N:
 144         case WM8985_PLL_K_1:
 145         case WM8985_PLL_K_2:
 146         case WM8985_PLL_K_3:
 147         case WM8985_3D_CONTROL:
 148         case WM8985_OUT4_TO_ADC:
 149         case WM8985_BEEP_CONTROL:
 150         case WM8985_INPUT_CTRL:
 151         case WM8985_LEFT_INP_PGA_GAIN_CTRL:
 152         case WM8985_RIGHT_INP_PGA_GAIN_CTRL:
 153         case WM8985_LEFT_ADC_BOOST_CTRL:
 154         case WM8985_RIGHT_ADC_BOOST_CTRL:
 155         case WM8985_OUTPUT_CTRL0:
 156         case WM8985_LEFT_MIXER_CTRL:
 157         case WM8985_RIGHT_MIXER_CTRL:
 158         case WM8985_LOUT1_HP_VOLUME_CTRL:
 159         case WM8985_ROUT1_HP_VOLUME_CTRL:
 160         case WM8985_LOUT2_SPK_VOLUME_CTRL:
 161         case WM8985_ROUT2_SPK_VOLUME_CTRL:
 162         case WM8985_OUT3_MIXER_CTRL:
 163         case WM8985_OUT4_MONO_MIX_CTRL:
 164         case WM8985_OUTPUT_CTRL1:
 165         case WM8985_BIAS_CTRL:
 166                 return true;
 167         default:
 168                 return false;
 169         }
 170 }
 171
 172 /*
 173  * latch bit 8 of these registers to ensure instant
 174  * volume updates
 175  */
 176 static const int volume_update_regs[] = {
 177         WM8985_LEFT_DAC_DIGITAL_VOL,
 178         WM8985_RIGHT_DAC_DIGITAL_VOL,
 179         WM8985_LEFT_ADC_DIGITAL_VOL,
 180         WM8985_RIGHT_ADC_DIGITAL_VOL,
 181         WM8985_LOUT2_SPK_VOLUME_CTRL,
 182         WM8985_ROUT2_SPK_VOLUME_CTRL,
 183         WM8985_LOUT1_HP_VOLUME_CTRL,
 184         WM8985_ROUT1_HP_VOLUME_CTRL,
 185         WM8985_LEFT_INP_PGA_GAIN_CTRL,
 186         WM8985_RIGHT_INP_PGA_GAIN_CTRL
 187 };
 188
 189 struct wm8985_priv {
 190         struct regmap *regmap;
 191         struct regulator_bulk_data supplies[WM8985_NUM_SUPPLIES];
 192         enum wm8985_type dev_type;
 193         unsigned int sysclk;
 194         unsigned int bclk;
 195 };
 196
 197 static const struct {
 198         int div;
 199         int ratio;
 200 } fs_ratios[] = {
 201         { 10, 128 },
 202         { 15, 192 },
 203         { 20, 256 },
 204         { 30, 384 },
 205         { 40, 512 },
 206         { 60, 768 },
 207         { 80, 1024 },
 208         { 120, 1536 }
 209 };
 210
 211 static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
 212
 213 static const int bclk_divs[] = {
 214         1, 2, 4, 8, 16, 32
 215 };
 216
 217 static int eqmode_get(struct snd_kcontrol *kcontrol,
 218                       struct snd_ctl_elem_value *ucontrol);
 219 static int eqmode_put(struct snd_kcontrol *kcontrol,
 220                       struct snd_ctl_elem_value *ucontrol);
 221
 222 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
 223 static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
 224 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
 225 static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
 226 static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
 227 static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
 228 static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
 229 static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
 230 static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
 231 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
 232 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 233 static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
 234 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
 235 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
 236
 237 static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
 238 static SOC_ENUM_SINGLE_DECL(alc_sel, WM8985_ALC_CONTROL_1, 7, alc_sel_text);
 239
 240 static const char *alc_mode_text[] = { "ALC", "Limiter" };
 241 static SOC_ENUM_SINGLE_DECL(alc_mode, WM8985_ALC_CONTROL_3, 8, alc_mode_text);
 242
 243 static const char *filter_mode_text[] = { "Audio", "Application" };
 244 static SOC_ENUM_SINGLE_DECL(filter_mode, WM8985_ADC_CONTROL, 7,
 245                             filter_mode_text);
 246
 247 static const char *eq_bw_text[] = { "Narrow", "Wide" };
 248 static const char *eqmode_text[] = { "Capture", "Playback" };
 249 static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
 250
 251 static const char *eq1_cutoff_text[] = {
 252         "80Hz", "105Hz", "135Hz", "175Hz"
 253 };
 254 static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8985_EQ1_LOW_SHELF, 5,
 255                             eq1_cutoff_text);
 256 static const char *eq2_cutoff_text[] = {
 257         "230Hz", "300Hz", "385Hz", "500Hz"
 258 };
 259 static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8985_EQ2_PEAK_1, 8, eq_bw_text);
 260 static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8985_EQ2_PEAK_1, 5, eq2_cutoff_text);
 261 static const char *eq3_cutoff_text[] = {
 262         "650Hz", "850Hz", "1.1kHz", "1.4kHz"
 263 };
 264 static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8985_EQ3_PEAK_2, 8, eq_bw_text);
 265 static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8985_EQ3_PEAK_2, 5,
 266                             eq3_cutoff_text);
 267 static const char *eq4_cutoff_text[] = {
 268         "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
 269 };
 270 static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8985_EQ4_PEAK_3, 8, eq_bw_text);
 271 static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8985_EQ4_PEAK_3, 5, eq4_cutoff_text);
 272 static const char *eq5_cutoff_text[] = {
 273         "5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
 274 };
 275 static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8985_EQ5_HIGH_SHELF, 5,
 276                                   eq5_cutoff_text);
 277
 278 static const char *speaker_mode_text[] = { "Class A/B", "Class D" };
 279 static SOC_ENUM_SINGLE_DECL(speaker_mode, 0x17, 8, speaker_mode_text);
 280
 281 static const char *depth_3d_text[] = {
 282         "Off",
 283         "6.67%",
 284         "13.3%",
 285         "20%",
 286         "26.7%",
 287         "33.3%",
 288         "40%",
 289         "46.6%",
 290         "53.3%",
 291         "60%",
 292         "66.7%",
 293         "73.3%",
 294         "80%",
 295         "86.7%",
 296         "93.3%",
 297         "100%"
 298 };
 299 static SOC_ENUM_SINGLE_DECL(depth_3d, WM8985_3D_CONTROL, 0, depth_3d_text);
 300
 301 static const struct snd_kcontrol_new wm8985_common_snd_controls[] = {
 302         SOC_SINGLE("Digital Loopback Switch", WM8985_COMPANDING_CONTROL,
 303                 0, 1, 0),
 304
 305         SOC_ENUM("ALC Capture Function", alc_sel),
 306         SOC_SINGLE_TLV("ALC Capture Max Volume", WM8985_ALC_CONTROL_1,
 307                 3, 7, 0, alc_max_tlv),
 308         SOC_SINGLE_TLV("ALC Capture Min Volume", WM8985_ALC_CONTROL_1,
 309                 0, 7, 0, alc_min_tlv),
 310         SOC_SINGLE_TLV("ALC Capture Target Volume", WM8985_ALC_CONTROL_2,
 311                 0, 15, 0, alc_tar_tlv),
 312         SOC_SINGLE("ALC Capture Attack", WM8985_ALC_CONTROL_3, 0, 10, 0),
 313         SOC_SINGLE("ALC Capture Hold", WM8985_ALC_CONTROL_2, 4, 10, 0),
 314         SOC_SINGLE("ALC Capture Decay", WM8985_ALC_CONTROL_3, 4, 10, 0),
 315         SOC_ENUM("ALC Mode", alc_mode),
 316         SOC_SINGLE("ALC Capture NG Switch", WM8985_NOISE_GATE,
 317                 3, 1, 0),
 318         SOC_SINGLE("ALC Capture NG Threshold", WM8985_NOISE_GATE,
 319                 0, 7, 1),
 320
 321         SOC_DOUBLE_R_TLV("Capture Volume", WM8985_LEFT_ADC_DIGITAL_VOL,
 322                 WM8985_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
 323         SOC_DOUBLE_R("Capture PGA ZC Switch", WM8985_LEFT_INP_PGA_GAIN_CTRL,
 324                 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
 325         SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8985_LEFT_INP_PGA_GAIN_CTRL,
 326                 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
 327
 328         SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
 329                 WM8985_LEFT_ADC_BOOST_CTRL, WM8985_RIGHT_ADC_BOOST_CTRL,
 330                 8, 1, 0, pga_boost_tlv),
 331
 332         SOC_DOUBLE("ADC Inversion Switch", WM8985_ADC_CONTROL, 0, 1, 1, 0),
 333         SOC_SINGLE("ADC 128x Oversampling Switch", WM8985_ADC_CONTROL, 8, 1, 0),
 334
 335         SOC_DOUBLE_R_TLV("Playback Volume", WM8985_LEFT_DAC_DIGITAL_VOL,
 336                 WM8985_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
 337
 338         SOC_SINGLE("DAC Playback Limiter Switch", WM8985_DAC_LIMITER_1, 8, 1, 0),
 339         SOC_SINGLE("DAC Playback Limiter Decay", WM8985_DAC_LIMITER_1, 4, 10, 0),
 340         SOC_SINGLE("DAC Playback Limiter Attack", WM8985_DAC_LIMITER_1, 0, 11, 0),
 341         SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8985_DAC_LIMITER_2,
 342                 4, 7, 1, lim_thresh_tlv),
 343         SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8985_DAC_LIMITER_2,
 344                 0, 12, 0, lim_boost_tlv),
 345         SOC_DOUBLE("DAC Inversion Switch", WM8985_DAC_CONTROL, 0, 1, 1, 0),
 346         SOC_SINGLE("DAC Auto Mute Switch", WM8985_DAC_CONTROL, 2, 1, 0),
 347         SOC_SINGLE("DAC 128x Oversampling Switch", WM8985_DAC_CONTROL, 3, 1, 0),
 348
 349         SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8985_LOUT1_HP_VOLUME_CTRL,
 350                 WM8985_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
 351         SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
 352                 WM8985_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
 353         SOC_DOUBLE_R("Headphone Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
 354                 WM8985_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
 355
 356         SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8985_LOUT2_SPK_VOLUME_CTRL,
 357                 WM8985_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
 358         SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
 359                 WM8985_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
 360         SOC_DOUBLE_R("Speaker Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
 361                 WM8985_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
 362
 363         SOC_SINGLE("High Pass Filter Switch", WM8985_ADC_CONTROL, 8, 1, 0),
 364         SOC_ENUM("High Pass Filter Mode", filter_mode),
 365         SOC_SINGLE("High Pass Filter Cutoff", WM8985_ADC_CONTROL, 4, 7, 0),
 366
 367         SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
 368                 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 2, 7, 0,
 369                 bypass_tlv),
 370
 371         SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
 372         SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
 373         SOC_SINGLE_TLV("EQ1 Volume", WM8985_EQ1_LOW_SHELF,  0, 24, 1, eq_tlv),
 374         SOC_ENUM("EQ2 Bandwidth", eq2_bw),
 375         SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
 376         SOC_SINGLE_TLV("EQ2 Volume", WM8985_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
 377         SOC_ENUM("EQ3 Bandwidth", eq3_bw),
 378         SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
 379         SOC_SINGLE_TLV("EQ3 Volume", WM8985_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
 380         SOC_ENUM("EQ4 Bandwidth", eq4_bw),
 381         SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
 382         SOC_SINGLE_TLV("EQ4 Volume", WM8985_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
 383         SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
 384         SOC_SINGLE_TLV("EQ5 Volume", WM8985_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
 385
 386         SOC_ENUM("3D Depth", depth_3d),
 387 };
 388
 389 static const struct snd_kcontrol_new wm8985_specific_snd_controls[] = {
 390         SOC_DOUBLE_R_TLV("Aux Bypass Volume",
 391                 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 6, 7, 0,
 392                 aux_tlv),
 393
 394         SOC_ENUM("Speaker Mode", speaker_mode)
 395 };
 396
 397 static const struct snd_kcontrol_new left_out_mixer[] = {
 398         SOC_DAPM_SINGLE("Line Switch", WM8985_LEFT_MIXER_CTRL, 1, 1, 0),
 399         SOC_DAPM_SINGLE("PCM Switch", WM8985_LEFT_MIXER_CTRL, 0, 1, 0),
 400
 401         /* --- WM8985 only --- */
 402         SOC_DAPM_SINGLE("Aux Switch", WM8985_LEFT_MIXER_CTRL, 5, 1, 0),
 403 };
 404
 405 static const struct snd_kcontrol_new right_out_mixer[] = {
 406         SOC_DAPM_SINGLE("Line Switch", WM8985_RIGHT_MIXER_CTRL, 1, 1, 0),
 407         SOC_DAPM_SINGLE("PCM Switch", WM8985_RIGHT_MIXER_CTRL, 0, 1, 0),
 408
 409         /* --- WM8985 only --- */
 410         SOC_DAPM_SINGLE("Aux Switch", WM8985_RIGHT_MIXER_CTRL, 5, 1, 0),
 411 };
 412
 413 static const struct snd_kcontrol_new left_input_mixer[] = {
 414         SOC_DAPM_SINGLE("L2 Switch", WM8985_INPUT_CTRL, 2, 1, 0),
 415         SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 1, 1, 0),
 416         SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 0, 1, 0),
 417 };
 418
 419 static const struct snd_kcontrol_new right_input_mixer[] = {
 420         SOC_DAPM_SINGLE("R2 Switch", WM8985_INPUT_CTRL, 6, 1, 0),
 421         SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 5, 1, 0),
 422         SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 4, 1, 0),
 423 };
 424
 425 static const struct snd_kcontrol_new left_boost_mixer[] = {
 426         SOC_DAPM_SINGLE_TLV("L2 Volume", WM8985_LEFT_ADC_BOOST_CTRL,
 427                 4, 7, 0, boost_tlv),
 428
 429         /* --- WM8985 only --- */
 430         SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8985_LEFT_ADC_BOOST_CTRL,
 431                 0, 7, 0, boost_tlv)
 432 };
 433
 434 static const struct snd_kcontrol_new right_boost_mixer[] = {
 435         SOC_DAPM_SINGLE_TLV("R2 Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
 436                 4, 7, 0, boost_tlv),
 437
 438         /* --- WM8985 only --- */
 439         SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
 440                 0, 7, 0, boost_tlv)
 441 };
 442
 443 static const struct snd_soc_dapm_widget wm8985_common_dapm_widgets[] = {
 444         SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8985_POWER_MANAGEMENT_3,
 445                 0, 0),
 446         SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8985_POWER_MANAGEMENT_3,
 447                 1, 0),
 448         SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8985_POWER_MANAGEMENT_2,
 449                 0, 0),
 450         SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8985_POWER_MANAGEMENT_2,
 451                 1, 0),
 452
 453         SND_SOC_DAPM_MIXER("Left Input Mixer", WM8985_POWER_MANAGEMENT_2,
 454                 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
 455         SND_SOC_DAPM_MIXER("Right Input Mixer", WM8985_POWER_MANAGEMENT_2,
 456                 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
 457
 458         SND_SOC_DAPM_PGA("Left Capture PGA", WM8985_LEFT_INP_PGA_GAIN_CTRL,
 459                 6, 1, NULL, 0),
 460         SND_SOC_DAPM_PGA("Right Capture PGA", WM8985_RIGHT_INP_PGA_GAIN_CTRL,
 461                 6, 1, NULL, 0),
 462
 463         SND_SOC_DAPM_PGA("Left Headphone Out", WM8985_POWER_MANAGEMENT_2,
 464                 7, 0, NULL, 0),
 465         SND_SOC_DAPM_PGA("Right Headphone Out", WM8985_POWER_MANAGEMENT_2,
 466                 8, 0, NULL, 0),
 467
 468         SND_SOC_DAPM_PGA("Left Speaker Out", WM8985_POWER_MANAGEMENT_3,
 469                 5, 0, NULL, 0),
 470         SND_SOC_DAPM_PGA("Right Speaker Out", WM8985_POWER_MANAGEMENT_3,
 471                 6, 0, NULL, 0),
 472
 473         SND_SOC_DAPM_SUPPLY("Mic Bias", WM8985_POWER_MANAGEMENT_1, 4, 0,
 474                             NULL, 0),
 475
 476         SND_SOC_DAPM_INPUT("LIN"),
 477         SND_SOC_DAPM_INPUT("LIP"),
 478         SND_SOC_DAPM_INPUT("RIN"),
 479         SND_SOC_DAPM_INPUT("RIP"),
 480         SND_SOC_DAPM_INPUT("L2"),
 481         SND_SOC_DAPM_INPUT("R2"),
 482         SND_SOC_DAPM_OUTPUT("HPL"),
 483         SND_SOC_DAPM_OUTPUT("HPR"),
 484         SND_SOC_DAPM_OUTPUT("SPKL"),
 485         SND_SOC_DAPM_OUTPUT("SPKR")
 486 };
 487
 488 static const struct snd_soc_dapm_widget wm8985_dapm_widgets[] = {
 489         SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3,
 490                 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
 491         SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3,
 492                 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
 493
 494         SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2,
 495                 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
 496         SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2,
 497                 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
 498
 499         SND_SOC_DAPM_INPUT("AUXL"),
 500         SND_SOC_DAPM_INPUT("AUXR"),
 501 };
 502
 503 static const struct snd_soc_dapm_widget wm8758_dapm_widgets[] = {
 504         SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3,
 505                 2, 0, left_out_mixer,
 506                 ARRAY_SIZE(left_out_mixer) - 1),
 507         SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3,
 508                 3, 0, right_out_mixer,
 509                 ARRAY_SIZE(right_out_mixer) - 1),
 510
 511         SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2,
 512                 4, 0, left_boost_mixer,
 513                 ARRAY_SIZE(left_boost_mixer) - 1),
 514         SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2,
 515                 5, 0, right_boost_mixer,
 516                 ARRAY_SIZE(right_boost_mixer) - 1),
 517 };
 518
 519 static const struct snd_soc_dapm_route wm8985_common_dapm_routes[] = {
 520         { "Right Output Mixer", "PCM Switch", "Right DAC" },
 521         { "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
 522
 523         { "Left Output Mixer", "PCM Switch", "Left DAC" },
 524         { "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
 525
 526         { "Right Headphone Out", NULL, "Right Output Mixer" },
 527         { "HPR", NULL, "Right Headphone Out" },
 528
 529         { "Left Headphone Out", NULL, "Left Output Mixer" },
 530         { "HPL", NULL, "Left Headphone Out" },
 531
 532         { "Right Speaker Out", NULL, "Right Output Mixer" },
 533         { "SPKR", NULL, "Right Speaker Out" },
 534
 535         { "Left Speaker Out", NULL, "Left Output Mixer" },
 536         { "SPKL", NULL, "Left Speaker Out" },
 537
 538         { "Right ADC", NULL, "Right Boost Mixer" },
 539
 540         { "Right Boost Mixer", NULL, "Right Capture PGA" },
 541         { "Right Boost Mixer", "R2 Volume", "R2" },
 542
 543         { "Left ADC", NULL, "Left Boost Mixer" },
 544
 545         { "Left Boost Mixer", NULL, "Left Capture PGA" },
 546         { "Left Boost Mixer", "L2 Volume", "L2" },
 547
 548         { "Right Capture PGA", NULL, "Right Input Mixer" },
 549         { "Left Capture PGA", NULL, "Left Input Mixer" },
 550
 551         { "Right Input Mixer", "R2 Switch", "R2" },
 552         { "Right Input Mixer", "MicN Switch", "RIN" },
 553         { "Right Input Mixer", "MicP Switch", "RIP" },
 554
 555         { "Left Input Mixer", "L2 Switch", "L2" },
 556         { "Left Input Mixer", "MicN Switch", "LIN" },
 557         { "Left Input Mixer", "MicP Switch", "LIP" },
 558 };
 559 static const struct snd_soc_dapm_route wm8985_aux_dapm_routes[] = {
 560         { "Right Output Mixer", "Aux Switch", "AUXR" },
 561         { "Left Output Mixer", "Aux Switch", "AUXL" },
 562
 563         { "Right Boost Mixer", "AUXR Volume", "AUXR" },
 564         { "Left Boost Mixer", "AUXL Volume", "AUXL" },
 565 };
 566
 567 static int wm8985_add_widgets(struct snd_soc_codec *codec)
 568 {
 569         struct wm8985_priv *wm8985 = snd_soc_codec_get_drvdata(codec);
 570         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 571
 572         switch (wm8985->dev_type) {
 573         case WM8758:
 574                 snd_soc_dapm_new_controls(dapm, wm8758_dapm_widgets,
 575                                           ARRAY_SIZE(wm8758_dapm_widgets));
 576                 break;
 577
 578         case WM8985:
 579                 snd_soc_add_codec_controls(codec, wm8985_specific_snd_controls,
 580                         ARRAY_SIZE(wm8985_specific_snd_controls));
 581
 582                 snd_soc_dapm_new_controls(dapm, wm8985_dapm_widgets,
 583                         ARRAY_SIZE(wm8985_dapm_widgets));
 584                 snd_soc_dapm_add_routes(dapm, wm8985_aux_dapm_routes,
 585                         ARRAY_SIZE(wm8985_aux_dapm_routes));
 586                 break;
 587         }
 588
 589         return 0;
 590 }
 591
 592 static int eqmode_get(struct snd_kcontrol *kcontrol,
 593                       struct snd_ctl_elem_value *ucontrol)
 594 {
 595         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 596         unsigned int reg;
 597
 598         reg = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF);
 599         if (reg & WM8985_EQ3DMODE)
 600                 ucontrol->value.enumerated.item[0] = 1;
 601         else
 602                 ucontrol->value.enumerated.item[0] = 0;
 603
 604         return 0;
 605 }
 606
 607 static int eqmode_put(struct snd_kcontrol *kcontrol,
 608                       struct snd_ctl_elem_value *ucontrol)
 609 {
 610         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 611         unsigned int regpwr2, regpwr3;
 612         unsigned int reg_eq;
 613
 614         if (ucontrol->value.enumerated.item[0] != 0
 615                         && ucontrol->value.enumerated.item[0] != 1)
 616                 return -EINVAL;
 617
 618         reg_eq = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF);
 619         switch ((reg_eq & WM8985_EQ3DMODE) >> WM8985_EQ3DMODE_SHIFT) {
 620         case 0:
 621                 if (!ucontrol->value.enumerated.item[0])
 622                         return 0;
 623                 break;
 624         case 1:
 625                 if (ucontrol->value.enumerated.item[0])
 626                         return 0;
 627                 break;
 628         }
 629
 630         regpwr2 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_2);
 631         regpwr3 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_3);
 632         /* disable the DACs and ADCs */
 633         snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_2,
 634                             WM8985_ADCENR_MASK | WM8985_ADCENL_MASK, 0);
 635         snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_3,
 636                             WM8985_DACENR_MASK | WM8985_DACENL_MASK, 0);
 637         snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL,
 638                             WM8985_M128ENB_MASK, WM8985_M128ENB);
 639         /* set the desired eqmode */
 640         snd_soc_update_bits(codec, WM8985_EQ1_LOW_SHELF,
 641                             WM8985_EQ3DMODE_MASK,
 642                             ucontrol->value.enumerated.item[0]
 643                             << WM8985_EQ3DMODE_SHIFT);
 644         /* restore DAC/ADC configuration */
 645         snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, regpwr2);
 646         snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, regpwr3);
 647         return 0;
 648 }
 649
 650 static int wm8985_reset(struct snd_soc_codec *codec)
 651 {
 652         return snd_soc_write(codec, WM8985_SOFTWARE_RESET, 0x0);
 653 }
 654
 655 static int wm8985_dac_mute(struct snd_soc_dai *dai, int mute)
 656 {
 657         struct snd_soc_codec *codec = dai->codec;
 658
 659         return snd_soc_update_bits(codec, WM8985_DAC_CONTROL,
 660                                    WM8985_SOFTMUTE_MASK,
 661                                    !!mute << WM8985_SOFTMUTE_SHIFT);
 662 }
 663
 664 static int wm8985_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 665 {
 666         struct snd_soc_codec *codec;
 667         u16 format, master, bcp, lrp;
 668
 669         codec = dai->codec;
 670
 671         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 672         case SND_SOC_DAIFMT_I2S:
 673                 format = 0x2;
 674                 break;
 675         case SND_SOC_DAIFMT_RIGHT_J:
 676                 format = 0x0;
 677                 break;
 678         case SND_SOC_DAIFMT_LEFT_J:
 679                 format = 0x1;
 680                 break;
 681         case SND_SOC_DAIFMT_DSP_A:
 682         case SND_SOC_DAIFMT_DSP_B:
 683                 format = 0x3;
 684                 break;
 685         default:
 686                 dev_err(dai->dev, "Unknown dai format\n");
 687                 return -EINVAL;
 688         }
 689
 690         snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
 691                             WM8985_FMT_MASK, format << WM8985_FMT_SHIFT);
 692
 693         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 694         case SND_SOC_DAIFMT_CBM_CFM:
 695                 master = 1;
 696                 break;
 697         case SND_SOC_DAIFMT_CBS_CFS:
 698                 master = 0;
 699                 break;
 700         default:
 701                 dev_err(dai->dev, "Unknown master/slave configuration\n");
 702                 return -EINVAL;
 703         }
 704
 705         snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 706                             WM8985_MS_MASK, master << WM8985_MS_SHIFT);
 707
 708         /* frame inversion is not valid for dsp modes */
 709         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 710         case SND_SOC_DAIFMT_DSP_A:
 711         case SND_SOC_DAIFMT_DSP_B:
 712                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 713                 case SND_SOC_DAIFMT_IB_IF:
 714                 case SND_SOC_DAIFMT_NB_IF:
 715                         return -EINVAL;
 716                 default:
 717                         break;
 718                 }
 719                 break;
 720         default:
 721                 break;
 722         }
 723
 724         bcp = lrp = 0;
 725         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 726         case SND_SOC_DAIFMT_NB_NF:
 727                 break;
 728         case SND_SOC_DAIFMT_IB_IF:
 729                 bcp = lrp = 1;
 730                 break;
 731         case SND_SOC_DAIFMT_IB_NF:
 732                 bcp = 1;
 733                 break;
 734         case SND_SOC_DAIFMT_NB_IF:
 735                 lrp = 1;
 736                 break;
 737         default:
 738                 dev_err(dai->dev, "Unknown polarity configuration\n");
 739                 return -EINVAL;
 740         }
 741
 742         snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
 743                             WM8985_LRP_MASK, lrp << WM8985_LRP_SHIFT);
 744         snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
 745                             WM8985_BCP_MASK, bcp << WM8985_BCP_SHIFT);
 746         return 0;
 747 }
 748
 749 static int wm8985_hw_params(struct snd_pcm_substream *substream,
 750                             struct snd_pcm_hw_params *params,
 751                             struct snd_soc_dai *dai)
 752 {
 753         int i;
 754         struct snd_soc_codec *codec;
 755         struct wm8985_priv *wm8985;
 756         u16 blen, srate_idx;
 757         unsigned int tmp;
 758         int srate_best;
 759
 760         codec = dai->codec;
 761         wm8985 = snd_soc_codec_get_drvdata(codec);
 762
 763         wm8985->bclk = snd_soc_params_to_bclk(params);
 764         if ((int)wm8985->bclk < 0)
 765                 return wm8985->bclk;
 766
 767         switch (params_width(params)) {
 768         case 16:
 769                 blen = 0x0;
 770                 break;
 771         case 20:
 772                 blen = 0x1;
 773                 break;
 774         case 24:
 775                 blen = 0x2;
 776                 break;
 777         case 32:
 778                 blen = 0x3;
 779                 break;
 780         default:
 781                 dev_err(dai->dev, "Unsupported word length %u\n",
 782                         params_width(params));
 783                 return -EINVAL;
 784         }
 785
 786         snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
 787                             WM8985_WL_MASK, blen << WM8985_WL_SHIFT);
 788
 789         /*
 790          * match to the nearest possible sample rate and rely
 791          * on the array index to configure the SR register
 792          */
 793         srate_idx = 0;
 794         srate_best = abs(srates[0] - params_rate(params));
 795         for (i = 1; i < ARRAY_SIZE(srates); ++i) {
 796                 if (abs(srates[i] - params_rate(params)) >= srate_best)
 797                         continue;
 798                 srate_idx = i;
 799                 srate_best = abs(srates[i] - params_rate(params));
 800         }
 801
 802         dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
 803         snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL,
 804                             WM8985_SR_MASK, srate_idx << WM8985_SR_SHIFT);
 805
 806         dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8985->bclk);
 807         dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8985->sysclk);
 808
 809         for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
 810                 if (wm8985->sysclk / params_rate(params)
 811                                 == fs_ratios[i].ratio)
 812                         break;
 813         }
 814
 815         if (i == ARRAY_SIZE(fs_ratios)) {
 816                 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
 817                         wm8985->sysclk, params_rate(params));
 818                 return -EINVAL;
 819         }
 820
 821         dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
 822         snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 823                             WM8985_MCLKDIV_MASK, i << WM8985_MCLKDIV_SHIFT);
 824
 825         /* select the appropriate bclk divider */
 826         tmp = (wm8985->sysclk / fs_ratios[i].div) * 10;
 827         for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
 828                 if (wm8985->bclk == tmp / bclk_divs[i])
 829                         break;
 830         }
 831
 832         if (i == ARRAY_SIZE(bclk_divs)) {
 833                 dev_err(dai->dev, "No matching BCLK divider found\n");
 834                 return -EINVAL;
 835         }
 836
 837         dev_dbg(dai->dev, "BCLK div = %d\n", i);
 838         snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 839                             WM8985_BCLKDIV_MASK, i << WM8985_BCLKDIV_SHIFT);
 840         return 0;
 841 }
 842
 843 struct pll_div {
 844         u32 div2:1;
 845         u32 n:4;
 846         u32 k:24;
 847 };
 848
 849 #define FIXED_PLL_SIZE ((1ULL << 24) * 10)
 850 static int pll_factors(struct pll_div *pll_div, unsigned int target,
 851                        unsigned int source)
 852 {
 853         u64 Kpart;
 854         unsigned long int K, Ndiv, Nmod;
 855
 856         pll_div->div2 = 0;
 857         Ndiv = target / source;
 858         if (Ndiv < 6) {
 859                 source >>= 1;
 860                 pll_div->div2 = 1;
 861                 Ndiv = target / source;
 862         }
 863
 864         if (Ndiv < 6 || Ndiv > 12) {
 865                 printk(KERN_ERR "%s: WM8985 N value is not within"
 866                        " the recommended range: %lu\n", __func__, Ndiv);
 867                 return -EINVAL;
 868         }
 869         pll_div->n = Ndiv;
 870
 871         Nmod = target % source;
 872         Kpart = FIXED_PLL_SIZE * (u64)Nmod;
 873
 874         do_div(Kpart, source);
 875
 876         K = Kpart & 0xffffffff;
 877         if ((K % 10) >= 5)
 878                 K += 5;
 879         K /= 10;
 880         pll_div->k = K;
 881
 882         return 0;
 883 }
 884
 885 static int wm8985_set_pll(struct snd_soc_dai *dai, int pll_id,
 886                           int source, unsigned int freq_in,
 887                           unsigned int freq_out)
 888 {
 889         int ret;
 890         struct snd_soc_codec *codec;
 891         struct pll_div pll_div;
 892
 893         codec = dai->codec;
 894         if (!freq_in || !freq_out) {
 895                 /* disable the PLL */
 896                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 897                                     WM8985_PLLEN_MASK, 0);
 898         } else {
 899                 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
 900                 if (ret)
 901                         return ret;
 902
 903                 /* set PLLN and PRESCALE */
 904                 snd_soc_write(codec, WM8985_PLL_N,
 905                               (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT)
 906                               | pll_div.n);
 907                 /* set PLLK */
 908                 snd_soc_write(codec, WM8985_PLL_K_3, pll_div.k & 0x1ff);
 909                 snd_soc_write(codec, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
 910                 snd_soc_write(codec, WM8985_PLL_K_1, (pll_div.k >> 18));
 911                 /* set the source of the clock to be the PLL */
 912                 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 913                                     WM8985_CLKSEL_MASK, WM8985_CLKSEL);
 914                 /* enable the PLL */
 915                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 916                                     WM8985_PLLEN_MASK, WM8985_PLLEN);
 917         }
 918         return 0;
 919 }
 920
 921 static int wm8985_set_sysclk(struct snd_soc_dai *dai,
 922                              int clk_id, unsigned int freq, int dir)
 923 {
 924         struct snd_soc_codec *codec;
 925         struct wm8985_priv *wm8985;
 926
 927         codec = dai->codec;
 928         wm8985 = snd_soc_codec_get_drvdata(codec);
 929
 930         switch (clk_id) {
 931         case WM8985_CLKSRC_MCLK:
 932                 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 933                                     WM8985_CLKSEL_MASK, 0);
 934                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 935                                     WM8985_PLLEN_MASK, 0);
 936                 break;
 937         case WM8985_CLKSRC_PLL:
 938                 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
 939                                     WM8985_CLKSEL_MASK, WM8985_CLKSEL);
 940                 break;
 941         default:
 942                 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
 943                 return -EINVAL;
 944         }
 945
 946         wm8985->sysclk = freq;
 947         return 0;
 948 }
 949
 950 static int wm8985_set_bias_level(struct snd_soc_codec *codec,
 951                                  enum snd_soc_bias_level level)
 952 {
 953         int ret;
 954         struct wm8985_priv *wm8985;
 955
 956         wm8985 = snd_soc_codec_get_drvdata(codec);
 957         switch (level) {
 958         case SND_SOC_BIAS_ON:
 959         case SND_SOC_BIAS_PREPARE:
 960                 /* VMID at 75k */
 961                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 962                                     WM8985_VMIDSEL_MASK,
 963                                     1 << WM8985_VMIDSEL_SHIFT);
 964                 break;
 965         case SND_SOC_BIAS_STANDBY:
 966                 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
 967                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
 968                                                     wm8985->supplies);
 969                         if (ret) {
 970                                 dev_err(codec->dev,
 971                                         "Failed to enable supplies: %d\n",
 972                                         ret);
 973                                 return ret;
 974                         }
 975
 976                         regcache_sync(wm8985->regmap);
 977
 978                         /* enable anti-pop features */
 979                         snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC,
 980                                             WM8985_POBCTRL_MASK,
 981                                             WM8985_POBCTRL);
 982                         /* enable thermal shutdown */
 983                         snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
 984                                             WM8985_TSDEN_MASK, WM8985_TSDEN);
 985                         snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
 986                                             WM8985_TSOPCTRL_MASK,
 987                                             WM8985_TSOPCTRL);
 988                         /* enable BIASEN */
 989                         snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 990                                             WM8985_BIASEN_MASK, WM8985_BIASEN);
 991                         /* VMID at 75k */
 992                         snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
 993                                             WM8985_VMIDSEL_MASK,
 994                                             1 << WM8985_VMIDSEL_SHIFT);
 995                         msleep(500);
 996                         /* disable anti-pop features */
 997                         snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC,
 998                                             WM8985_POBCTRL_MASK, 0);
 999                 }
1000                 /* VMID at 300k */
1001                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
1002                                     WM8985_VMIDSEL_MASK,
1003                                     2 << WM8985_VMIDSEL_SHIFT);
1004                 break;
1005         case SND_SOC_BIAS_OFF:
1006                 /* disable thermal shutdown */
1007                 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
1008                                     WM8985_TSOPCTRL_MASK, 0);
1009                 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
1010                                     WM8985_TSDEN_MASK, 0);
1011                 /* disable VMIDSEL and BIASEN */
1012                 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
1013                                     WM8985_VMIDSEL_MASK | WM8985_BIASEN_MASK,
1014                                     0);
1015                 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_1, 0);
1016                 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, 0);
1017                 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, 0);
1018
1019                 regcache_mark_dirty(wm8985->regmap);
1020
1021                 regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies),
1022                                        wm8985->supplies);
1023                 break;
1024         }
1025
1026         return 0;
1027 }
1028
1029 static int wm8985_probe(struct snd_soc_codec *codec)
1030 {
1031         size_t i;
1032         struct wm8985_priv *wm8985;
1033         int ret;
1034
1035         wm8985 = snd_soc_codec_get_drvdata(codec);
1036
1037         for (i = 0; i < ARRAY_SIZE(wm8985->supplies); i++)
1038                 wm8985->supplies[i].supply = wm8985_supply_names[i];
1039
1040         ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8985->supplies),
1041                                  wm8985->supplies);
1042         if (ret) {
1043                 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
1044                 return ret;
1045         }
1046
1047         ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
1048                                     wm8985->supplies);
1049         if (ret) {
1050                 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
1051                 return ret;
1052         }
1053
1054         ret = wm8985_reset(codec);
1055         if (ret < 0) {
1056                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1057                 goto err_reg_enable;
1058         }
1059
1060         /* latch volume update bits */
1061         for (i = 0; i < ARRAY_SIZE(volume_update_regs); ++i)
1062                 snd_soc_update_bits(codec, volume_update_regs[i],
1063                                     0x100, 0x100);
1064         /* enable BIASCUT */
1065         snd_soc_update_bits(codec, WM8985_BIAS_CTRL, WM8985_BIASCUT,
1066                             WM8985_BIASCUT);
1067
1068         wm8985_add_widgets(codec);
1069
1070         return 0;
1071
1072 err_reg_enable:
1073         regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies), wm8985->supplies);
1074         return ret;
1075 }
1076
1077 static const struct snd_soc_dai_ops wm8985_dai_ops = {
1078         .digital_mute = wm8985_dac_mute,
1079         .hw_params = wm8985_hw_params,
1080         .set_fmt = wm8985_set_fmt,
1081         .set_sysclk = wm8985_set_sysclk,
1082         .set_pll = wm8985_set_pll
1083 };
1084
1085 #define WM8985_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1086                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1087
1088 static struct snd_soc_dai_driver wm8985_dai = {
1089         .name = "wm8985-hifi",
1090         .playback = {
1091                 .stream_name = "Playback",
1092                 .channels_min = 2,
1093                 .channels_max = 2,
1094                 .rates = SNDRV_PCM_RATE_8000_48000,
1095                 .formats = WM8985_FORMATS,
1096         },
1097         .capture = {
1098                 .stream_name = "Capture",
1099                 .channels_min = 2,
1100                 .channels_max = 2,
1101                 .rates = SNDRV_PCM_RATE_8000_48000,
1102                 .formats = WM8985_FORMATS,
1103         },
1104         .ops = &wm8985_dai_ops,
1105         .symmetric_rates = 1
1106 };
1107
1108 static const struct snd_soc_codec_driver soc_codec_dev_wm8985 = {
1109         .probe = wm8985_probe,
1110         .set_bias_level = wm8985_set_bias_level,
1111         .suspend_bias_off = true,
1112
1113         .component_driver = {
1114                 .controls               = wm8985_common_snd_controls,
1115                 .num_controls           = ARRAY_SIZE(wm8985_common_snd_controls),
1116                 .dapm_widgets           = wm8985_common_dapm_widgets,
1117                 .num_dapm_widgets       = ARRAY_SIZE(wm8985_common_dapm_widgets),
1118                 .dapm_routes            = wm8985_common_dapm_routes,
1119                 .num_dapm_routes        = ARRAY_SIZE(wm8985_common_dapm_routes),
1120         },
1121 };
1122
1123 static const struct regmap_config wm8985_regmap = {
1124         .reg_bits = 7,
1125         .val_bits = 9,
1126
1127         .max_register = WM8985_MAX_REGISTER,
1128         .writeable_reg = wm8985_writeable,
1129
1130         .cache_type = REGCACHE_RBTREE,
1131         .reg_defaults = wm8985_reg_defaults,
1132         .num_reg_defaults = ARRAY_SIZE(wm8985_reg_defaults),
1133 };
1134
1135 #if defined(CONFIG_SPI_MASTER)
1136 static int wm8985_spi_probe(struct spi_device *spi)
1137 {
1138         struct wm8985_priv *wm8985;
1139         int ret;
1140
1141         wm8985 = devm_kzalloc(&spi->dev, sizeof *wm8985, GFP_KERNEL);
1142         if (!wm8985)
1143                 return -ENOMEM;
1144
1145         spi_set_drvdata(spi, wm8985);
1146
1147         wm8985->dev_type = WM8985;
1148
1149         wm8985->regmap = devm_regmap_init_spi(spi, &wm8985_regmap);
1150         if (IS_ERR(wm8985->regmap)) {
1151                 ret = PTR_ERR(wm8985->regmap);
1152                 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1153                         ret);
1154                 return ret;
1155         }
1156
1157         ret = snd_soc_register_codec(&spi->dev,
1158                                      &soc_codec_dev_wm8985, &wm8985_dai, 1);
1159         return ret;
1160 }
1161
1162 static int wm8985_spi_remove(struct spi_device *spi)
1163 {
1164         snd_soc_unregister_codec(&spi->dev);
1165         return 0;
1166 }
1167
1168 static struct spi_driver wm8985_spi_driver = {
1169         .driver = {
1170                 .name = "wm8985",
1171         },
1172         .probe = wm8985_spi_probe,
1173         .remove = wm8985_spi_remove
1174 };
1175 #endif
1176
1177 #if IS_ENABLED(CONFIG_I2C)
1178 static int wm8985_i2c_probe(struct i2c_client *i2c,
1179                             const struct i2c_device_id *id)
1180 {
1181         struct wm8985_priv *wm8985;
1182         int ret;
1183
1184         wm8985 = devm_kzalloc(&i2c->dev, sizeof *wm8985, GFP_KERNEL);
1185         if (!wm8985)
1186                 return -ENOMEM;
1187
1188         i2c_set_clientdata(i2c, wm8985);
1189
1190         wm8985->dev_type = id->driver_data;
1191
1192         wm8985->regmap = devm_regmap_init_i2c(i2c, &wm8985_regmap);
1193         if (IS_ERR(wm8985->regmap)) {
1194                 ret = PTR_ERR(wm8985->regmap);
1195                 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1196                         ret);
1197                 return ret;
1198         }
1199
1200         ret = snd_soc_register_codec(&i2c->dev,
1201                                      &soc_codec_dev_wm8985, &wm8985_dai, 1);
1202         return ret;
1203 }
1204
1205 static int wm8985_i2c_remove(struct i2c_client *i2c)
1206 {
1207         snd_soc_unregister_codec(&i2c->dev);
1208         return 0;
1209 }
1210
1211 static const struct i2c_device_id wm8985_i2c_id[] = {
1212         { "wm8985", WM8985 },
1213         { "wm8758", WM8758 },
1214         { }
1215 };
1216 MODULE_DEVICE_TABLE(i2c, wm8985_i2c_id);
1217
1218 static struct i2c_driver wm8985_i2c_driver = {
1219         .driver = {
1220                 .name = "wm8985",
1221         },
1222         .probe = wm8985_i2c_probe,
1223         .remove = wm8985_i2c_remove,
1224         .id_table = wm8985_i2c_id
1225 };
1226 #endif
1227
1228 static int __init wm8985_modinit(void)
1229 {
1230         int ret = 0;
1231
1232 #if IS_ENABLED(CONFIG_I2C)
1233         ret = i2c_add_driver(&wm8985_i2c_driver);
1234         if (ret) {
1235                 printk(KERN_ERR "Failed to register wm8985 I2C driver: %d\n",
1236                        ret);
1237         }
1238 #endif
1239 #if defined(CONFIG_SPI_MASTER)
1240         ret = spi_register_driver(&wm8985_spi_driver);
1241         if (ret != 0) {
1242                 printk(KERN_ERR "Failed to register wm8985 SPI driver: %d\n",
1243                        ret);
1244         }
1245 #endif
1246         return ret;
1247 }
1248 module_init(wm8985_modinit);
1249
1250 static void __exit wm8985_exit(void)
1251 {
1252 #if IS_ENABLED(CONFIG_I2C)
1253         i2c_del_driver(&wm8985_i2c_driver);
1254 #endif
1255 #if defined(CONFIG_SPI_MASTER)
1256         spi_unregister_driver(&wm8985_spi_driver);
1257 #endif
1258 }
1259 module_exit(wm8985_exit);
1260
1261 MODULE_DESCRIPTION("ASoC WM8985 / WM8758 driver");
1262 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
1263 MODULE_LICENSE("GPL");