sound/soc/codecs/wm8960.c

   1 /*
   2  * wm8960.c  --  WM8960 ALSA SoC Audio driver
   3  *
   4  * Copyright 2007-11 Wolfson Microelectronics, plc
   5  *
   6  * Author: Liam Girdwood
   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
  13 #include <linux/module.h>
  14 #include <linux/moduleparam.h>
  15 #include <linux/init.h>
  16 #include <linux/delay.h>
  17 #include <linux/pm.h>
  18 #include <linux/clk.h>
  19 #include <linux/i2c.h>
  20 #include <linux/slab.h>
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/pcm_params.h>
  24 #include <sound/soc.h>
  25 #include <sound/initval.h>
  26 #include <sound/tlv.h>
  27 #include <sound/wm8960.h>
  28
  29 #include "wm8960.h"
  30
  31 /* R25 - Power 1 */
  32 #define WM8960_VMID_MASK 0x180
  33 #define WM8960_VREF      0x40
  34
  35 /* R26 - Power 2 */
  36 #define WM8960_PWR2_LOUT1       0x40
  37 #define WM8960_PWR2_ROUT1       0x20
  38 #define WM8960_PWR2_OUT3        0x02
  39
  40 /* R28 - Anti-pop 1 */
  41 #define WM8960_POBCTRL   0x80
  42 #define WM8960_BUFDCOPEN 0x10
  43 #define WM8960_BUFIOEN   0x08
  44 #define WM8960_SOFT_ST   0x04
  45 #define WM8960_HPSTBY    0x01
  46
  47 /* R29 - Anti-pop 2 */
  48 #define WM8960_DISOP     0x40
  49 #define WM8960_DRES_MASK 0x30
  50
  51 /*
  52  * wm8960 register cache
  53  * We can't read the WM8960 register space when we are
  54  * using 2 wire for device control, so we cache them instead.
  55  */
  56 static const struct reg_default wm8960_reg_defaults[] = {
  57         {  0x0, 0x00a7 },
  58         {  0x1, 0x00a7 },
  59         {  0x2, 0x0000 },
  60         {  0x3, 0x0000 },
  61         {  0x4, 0x0000 },
  62         {  0x5, 0x0008 },
  63         {  0x6, 0x0000 },
  64         {  0x7, 0x000a },
  65         {  0x8, 0x01c0 },
  66         {  0x9, 0x0000 },
  67         {  0xa, 0x00ff },
  68         {  0xb, 0x00ff },
  69
  70         { 0x10, 0x0000 },
  71         { 0x11, 0x007b },
  72         { 0x12, 0x0100 },
  73         { 0x13, 0x0032 },
  74         { 0x14, 0x0000 },
  75         { 0x15, 0x00c3 },
  76         { 0x16, 0x00c3 },
  77         { 0x17, 0x01c0 },
  78         { 0x18, 0x0000 },
  79         { 0x19, 0x0000 },
  80         { 0x1a, 0x0000 },
  81         { 0x1b, 0x0000 },
  82         { 0x1c, 0x0000 },
  83         { 0x1d, 0x0000 },
  84
  85         { 0x20, 0x0100 },
  86         { 0x21, 0x0100 },
  87         { 0x22, 0x0050 },
  88
  89         { 0x25, 0x0050 },
  90         { 0x26, 0x0000 },
  91         { 0x27, 0x0000 },
  92         { 0x28, 0x0000 },
  93         { 0x29, 0x0000 },
  94         { 0x2a, 0x0040 },
  95         { 0x2b, 0x0000 },
  96         { 0x2c, 0x0000 },
  97         { 0x2d, 0x0050 },
  98         { 0x2e, 0x0050 },
  99         { 0x2f, 0x0000 },
 100         { 0x30, 0x0002 },
 101         { 0x31, 0x0037 },
 102
 103         { 0x33, 0x0080 },
 104         { 0x34, 0x0008 },
 105         { 0x35, 0x0031 },
 106         { 0x36, 0x0026 },
 107         { 0x37, 0x00e9 },
 108 };
 109
 110 static bool wm8960_volatile(struct device *dev, unsigned int reg)
 111 {
 112         switch (reg) {
 113         case WM8960_RESET:
 114                 return true;
 115         default:
 116                 return false;
 117         }
 118 }
 119
 120 struct wm8960_priv {
 121         struct clk *mclk;
 122         struct regmap *regmap;
 123         int (*set_bias_level)(struct snd_soc_codec *,
 124                               enum snd_soc_bias_level level);
 125         struct snd_soc_dapm_widget *lout1;
 126         struct snd_soc_dapm_widget *rout1;
 127         struct snd_soc_dapm_widget *out3;
 128         bool deemph;
 129         int playback_fs;
 130         int bclk;
 131         int sysclk;
 132         struct wm8960_data pdata;
 133 };
 134
 135 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
 136
 137 /* enumerated controls */
 138 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
 139         "Right Inverted", "Stereo Inversion"};
 140 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
 141 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
 142 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
 143 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
 144
 145 static const struct soc_enum wm8960_enum[] = {
 146         SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
 147         SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
 148         SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
 149         SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
 150         SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
 151         SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
 152 };
 153
 154 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
 155
 156 static int wm8960_set_deemph(struct snd_soc_codec *codec)
 157 {
 158         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 159         int val, i, best;
 160
 161         /* If we're using deemphasis select the nearest available sample
 162          * rate.
 163          */
 164         if (wm8960->deemph) {
 165                 best = 1;
 166                 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
 167                         if (abs(deemph_settings[i] - wm8960->playback_fs) <
 168                             abs(deemph_settings[best] - wm8960->playback_fs))
 169                                 best = i;
 170                 }
 171
 172                 val = best << 1;
 173         } else {
 174                 val = 0;
 175         }
 176
 177         dev_dbg(codec->dev, "Set deemphasis %d\n", val);
 178
 179         return snd_soc_update_bits(codec, WM8960_DACCTL1,
 180                                    0x6, val);
 181 }
 182
 183 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
 184                              struct snd_ctl_elem_value *ucontrol)
 185 {
 186         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 187         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 188
 189         ucontrol->value.integer.value[0] = wm8960->deemph;
 190         return 0;
 191 }
 192
 193 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
 194                              struct snd_ctl_elem_value *ucontrol)
 195 {
 196         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 197         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 198         int deemph = ucontrol->value.integer.value[0];
 199
 200         if (deemph > 1)
 201                 return -EINVAL;
 202
 203         wm8960->deemph = deemph;
 204
 205         return wm8960_set_deemph(codec);
 206 }
 207
 208 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
 209 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
 210 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
 211 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
 212 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
 213 static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
 214 static const unsigned int micboost_tlv[] = {
 215         TLV_DB_RANGE_HEAD(2),
 216         0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0),
 217         2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0),
 218 };
 219
 220 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
 221 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
 222                  0, 63, 0, inpga_tlv),
 223 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
 224         6, 1, 0),
 225 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
 226         7, 1, 0),
 227
 228 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
 229                WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
 230 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
 231                WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
 232 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
 233                WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
 234 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
 235                WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
 236 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
 237                 WM8960_RINPATH, 4, 4, 0, micboost_tlv),
 238 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
 239                 WM8960_LINPATH, 4, 4, 0, micboost_tlv),
 240
 241 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
 242                  0, 255, 0, dac_tlv),
 243
 244 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
 245                  0, 127, 0, out_tlv),
 246 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
 247         7, 1, 0),
 248
 249 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
 250                  0, 127, 0, out_tlv),
 251 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
 252         7, 1, 0),
 253 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
 254 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
 255
 256 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
 257 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
 258 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
 259
 260 SOC_ENUM("DAC Polarity", wm8960_enum[1]),
 261 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
 262                     wm8960_get_deemph, wm8960_put_deemph),
 263
 264 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
 265 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
 266 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
 267 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
 268
 269 SOC_ENUM("ALC Function", wm8960_enum[4]),
 270 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
 271 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
 272 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
 273 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
 274 SOC_ENUM("ALC Mode", wm8960_enum[5]),
 275 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
 276 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
 277
 278 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
 279 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
 280
 281 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
 282         0, 255, 0, adc_tlv),
 283
 284 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
 285                WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
 286 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
 287                WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
 288 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
 289                WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
 290 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
 291                WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
 292 };
 293
 294 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
 295 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
 296 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
 297 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
 298 };
 299
 300 static const struct snd_kcontrol_new wm8960_lin[] = {
 301 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
 302 };
 303
 304 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
 305 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
 306 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
 307 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
 308 };
 309
 310 static const struct snd_kcontrol_new wm8960_rin[] = {
 311 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
 312 };
 313
 314 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
 315 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
 316 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
 317 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
 318 };
 319
 320 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
 321 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
 322 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
 323 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
 324 };
 325
 326 static const struct snd_kcontrol_new wm8960_mono_out[] = {
 327 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
 328 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
 329 };
 330
 331 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
 332 SND_SOC_DAPM_INPUT("LINPUT1"),
 333 SND_SOC_DAPM_INPUT("RINPUT1"),
 334 SND_SOC_DAPM_INPUT("LINPUT2"),
 335 SND_SOC_DAPM_INPUT("RINPUT2"),
 336 SND_SOC_DAPM_INPUT("LINPUT3"),
 337 SND_SOC_DAPM_INPUT("RINPUT3"),
 338
 339 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
 340
 341 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
 342                    wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
 343 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
 344                    wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
 345
 346 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
 347                    wm8960_lin, ARRAY_SIZE(wm8960_lin)),
 348 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
 349                    wm8960_rin, ARRAY_SIZE(wm8960_rin)),
 350
 351 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
 352 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
 353
 354 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
 355 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
 356
 357 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
 358         &wm8960_loutput_mixer[0],
 359         ARRAY_SIZE(wm8960_loutput_mixer)),
 360 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
 361         &wm8960_routput_mixer[0],
 362         ARRAY_SIZE(wm8960_routput_mixer)),
 363
 364 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
 365 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
 366
 367 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
 368 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
 369
 370 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
 371 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
 372
 373 SND_SOC_DAPM_OUTPUT("SPK_LP"),
 374 SND_SOC_DAPM_OUTPUT("SPK_LN"),
 375 SND_SOC_DAPM_OUTPUT("HP_L"),
 376 SND_SOC_DAPM_OUTPUT("HP_R"),
 377 SND_SOC_DAPM_OUTPUT("SPK_RP"),
 378 SND_SOC_DAPM_OUTPUT("SPK_RN"),
 379 SND_SOC_DAPM_OUTPUT("OUT3"),
 380 };
 381
 382 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
 383 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
 384         &wm8960_mono_out[0],
 385         ARRAY_SIZE(wm8960_mono_out)),
 386 };
 387
 388 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
 389 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
 390 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
 391 };
 392
 393 static const struct snd_soc_dapm_route audio_paths[] = {
 394         { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
 395         { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
 396         { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
 397
 398         { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
 399         { "Left Input Mixer", NULL, "LINPUT1", },  /* Really Boost Switch */
 400         { "Left Input Mixer", NULL, "LINPUT2" },
 401         { "Left Input Mixer", NULL, "LINPUT3" },
 402
 403         { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
 404         { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
 405         { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
 406
 407         { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
 408         { "Right Input Mixer", NULL, "RINPUT1", },  /* Really Boost Switch */
 409         { "Right Input Mixer", NULL, "RINPUT2" },
 410         { "Right Input Mixer", NULL, "RINPUT3" },
 411
 412         { "Left ADC", NULL, "Left Input Mixer" },
 413         { "Right ADC", NULL, "Right Input Mixer" },
 414
 415         { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
 416         { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
 417         { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
 418
 419         { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
 420         { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
 421         { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
 422
 423         { "LOUT1 PGA", NULL, "Left Output Mixer" },
 424         { "ROUT1 PGA", NULL, "Right Output Mixer" },
 425
 426         { "HP_L", NULL, "LOUT1 PGA" },
 427         { "HP_R", NULL, "ROUT1 PGA" },
 428
 429         { "Left Speaker PGA", NULL, "Left Output Mixer" },
 430         { "Right Speaker PGA", NULL, "Right Output Mixer" },
 431
 432         { "Left Speaker Output", NULL, "Left Speaker PGA" },
 433         { "Right Speaker Output", NULL, "Right Speaker PGA" },
 434
 435         { "SPK_LN", NULL, "Left Speaker Output" },
 436         { "SPK_LP", NULL, "Left Speaker Output" },
 437         { "SPK_RN", NULL, "Right Speaker Output" },
 438         { "SPK_RP", NULL, "Right Speaker Output" },
 439 };
 440
 441 static const struct snd_soc_dapm_route audio_paths_out3[] = {
 442         { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
 443         { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
 444
 445         { "OUT3", NULL, "Mono Output Mixer", }
 446 };
 447
 448 static const struct snd_soc_dapm_route audio_paths_capless[] = {
 449         { "HP_L", NULL, "OUT3 VMID" },
 450         { "HP_R", NULL, "OUT3 VMID" },
 451
 452         { "OUT3 VMID", NULL, "Left Output Mixer" },
 453         { "OUT3 VMID", NULL, "Right Output Mixer" },
 454 };
 455
 456 static int wm8960_add_widgets(struct snd_soc_codec *codec)
 457 {
 458         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 459         struct wm8960_data *pdata = &wm8960->pdata;
 460         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 461         struct snd_soc_dapm_widget *w;
 462
 463         snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
 464                                   ARRAY_SIZE(wm8960_dapm_widgets));
 465
 466         snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
 467
 468         /* In capless mode OUT3 is used to provide VMID for the
 469          * headphone outputs, otherwise it is used as a mono mixer.
 470          */
 471         if (pdata && pdata->capless) {
 472                 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
 473                                           ARRAY_SIZE(wm8960_dapm_widgets_capless));
 474
 475                 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
 476                                         ARRAY_SIZE(audio_paths_capless));
 477         } else {
 478                 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
 479                                           ARRAY_SIZE(wm8960_dapm_widgets_out3));
 480
 481                 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
 482                                         ARRAY_SIZE(audio_paths_out3));
 483         }
 484
 485         /* We need to power up the headphone output stage out of
 486          * sequence for capless mode.  To save scanning the widget
 487          * list each time to find the desired power state do so now
 488          * and save the result.
 489          */
 490         list_for_each_entry(w, &codec->component.card->widgets, list) {
 491                 if (w->dapm != dapm)
 492                         continue;
 493                 if (strcmp(w->name, "LOUT1 PGA") == 0)
 494                         wm8960->lout1 = w;
 495                 if (strcmp(w->name, "ROUT1 PGA") == 0)
 496                         wm8960->rout1 = w;
 497                 if (strcmp(w->name, "OUT3 VMID") == 0)
 498                         wm8960->out3 = w;
 499         }
 500
 501         return 0;
 502 }
 503
 504 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
 505                 unsigned int fmt)
 506 {
 507         struct snd_soc_codec *codec = codec_dai->codec;
 508         u16 iface = 0;
 509
 510         /* set master/slave audio interface */
 511         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 512         case SND_SOC_DAIFMT_CBM_CFM:
 513                 iface |= 0x0040;
 514                 break;
 515         case SND_SOC_DAIFMT_CBS_CFS:
 516                 break;
 517         default:
 518                 return -EINVAL;
 519         }
 520
 521         /* interface format */
 522         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 523         case SND_SOC_DAIFMT_I2S:
 524                 iface |= 0x0002;
 525                 break;
 526         case SND_SOC_DAIFMT_RIGHT_J:
 527                 break;
 528         case SND_SOC_DAIFMT_LEFT_J:
 529                 iface |= 0x0001;
 530                 break;
 531         case SND_SOC_DAIFMT_DSP_A:
 532                 iface |= 0x0003;
 533                 break;
 534         case SND_SOC_DAIFMT_DSP_B:
 535                 iface |= 0x0013;
 536                 break;
 537         default:
 538                 return -EINVAL;
 539         }
 540
 541         /* clock inversion */
 542         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 543         case SND_SOC_DAIFMT_NB_NF:
 544                 break;
 545         case SND_SOC_DAIFMT_IB_IF:
 546                 iface |= 0x0090;
 547                 break;
 548         case SND_SOC_DAIFMT_IB_NF:
 549                 iface |= 0x0080;
 550                 break;
 551         case SND_SOC_DAIFMT_NB_IF:
 552                 iface |= 0x0010;
 553                 break;
 554         default:
 555                 return -EINVAL;
 556         }
 557
 558         /* set iface */
 559         snd_soc_write(codec, WM8960_IFACE1, iface);
 560         return 0;
 561 }
 562
 563 static struct {
 564         int rate;
 565         unsigned int val;
 566 } alc_rates[] = {
 567         { 48000, 0 },
 568         { 44100, 0 },
 569         { 32000, 1 },
 570         { 22050, 2 },
 571         { 24000, 2 },
 572         { 16000, 3 },
 573         { 11025, 4 },
 574         { 12000, 4 },
 575         {  8000, 5 },
 576 };
 577
 578 /* Multiply 256 for internal 256 div */
 579 static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
 580
 581 /* Multiply 10 to eliminate decimials */
 582 static const int bclk_divs[] = {
 583         10, 15, 20, 30, 40, 55, 60, 80, 110,
 584         120, 160, 220, 240, 320, 320, 320
 585 };
 586
 587 static void wm8960_configure_clocking(struct snd_soc_codec *codec,
 588                 bool tx, int lrclk)
 589 {
 590         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 591         u16 iface1 = snd_soc_read(codec, WM8960_IFACE1);
 592         u16 iface2 = snd_soc_read(codec, WM8960_IFACE2);
 593         u32 sysclk;
 594         int i, j;
 595
 596         if (!(iface1 & (1<<6))) {
 597                 dev_dbg(codec->dev,
 598                         "Codec is slave mode, no need to configure clock\n");
 599                 return;
 600         }
 601
 602         if (!wm8960->sysclk) {
 603                 dev_dbg(codec->dev, "No SYSCLK configured\n");
 604                 return;
 605         }
 606
 607         if (!wm8960->bclk || !lrclk) {
 608                 dev_dbg(codec->dev, "No audio clocks configured\n");
 609                 return;
 610         }
 611
 612         for (i = 0; i < ARRAY_SIZE(dac_divs); ++i) {
 613                 if (wm8960->sysclk == lrclk * dac_divs[i]) {
 614                         for (j = 0; j < ARRAY_SIZE(bclk_divs); ++j) {
 615                                 sysclk = wm8960->bclk * bclk_divs[j] / 10;
 616                                 if (wm8960->sysclk == sysclk)
 617                                         break;
 618                         }
 619                         if(j != ARRAY_SIZE(bclk_divs))
 620                                 break;
 621                 }
 622         }
 623
 624         if (i == ARRAY_SIZE(dac_divs)) {
 625                 dev_err(codec->dev, "Unsupported sysclk %d\n", wm8960->sysclk);
 626                 return;
 627         }
 628
 629         /*
 630          * configure frame clock. If ADCLRC configure as GPIO pin, DACLRC
 631          * pin is used as a frame clock for ADCs and DACs.
 632          */
 633         if (iface2 & (1<<6))
 634                 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
 635         else if (tx)
 636                 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
 637         else if (!tx)
 638                 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 6, i << 6);
 639
 640         /* configure bit clock */
 641         snd_soc_update_bits(codec, WM8960_CLOCK2, 0xf, j);
 642 }
 643
 644 static int wm8960_hw_params(struct snd_pcm_substream *substream,
 645                             struct snd_pcm_hw_params *params,
 646                             struct snd_soc_dai *dai)
 647 {
 648         struct snd_soc_codec *codec = dai->codec;
 649         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 650         u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
 651         bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 652         int i;
 653
 654         wm8960->bclk = snd_soc_params_to_bclk(params);
 655         if (params_channels(params) == 1)
 656                 wm8960->bclk *= 2;
 657
 658         /* bit size */
 659         switch (params_width(params)) {
 660         case 16:
 661                 break;
 662         case 20:
 663                 iface |= 0x0004;
 664                 break;
 665         case 24:
 666                 iface |= 0x0008;
 667                 break;
 668         case 32:
 669                 /* right justify mode does not support 32 word length */
 670                 if ((iface & 0x3) != 0) {
 671                         iface |= 0x000c;
 672                         break;
 673                 }
 674         default:
 675                 dev_err(codec->dev, "unsupported width %d\n",
 676                         params_width(params));
 677                 return -EINVAL;
 678         }
 679
 680         /* Update filters for the new rate */
 681         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 682                 wm8960->playback_fs = params_rate(params);
 683                 wm8960_set_deemph(codec);
 684         } else {
 685                 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
 686                         if (alc_rates[i].rate == params_rate(params))
 687                                 snd_soc_update_bits(codec,
 688                                                     WM8960_ADDCTL3, 0x7,
 689                                                     alc_rates[i].val);
 690         }
 691
 692         /* set iface */
 693         snd_soc_write(codec, WM8960_IFACE1, iface);
 694
 695         wm8960_configure_clocking(codec, tx, params_rate(params));
 696
 697         return 0;
 698 }
 699
 700 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
 701 {
 702         struct snd_soc_codec *codec = dai->codec;
 703
 704         if (mute)
 705                 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
 706         else
 707                 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
 708         return 0;
 709 }
 710
 711 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
 712                                       enum snd_soc_bias_level level)
 713 {
 714         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 715         int ret;
 716
 717         switch (level) {
 718         case SND_SOC_BIAS_ON:
 719                 break;
 720
 721         case SND_SOC_BIAS_PREPARE:
 722                 switch (snd_soc_codec_get_bias_level(codec)) {
 723                 case SND_SOC_BIAS_STANDBY:
 724                         if (!IS_ERR(wm8960->mclk)) {
 725                                 ret = clk_prepare_enable(wm8960->mclk);
 726                                 if (ret) {
 727                                         dev_err(codec->dev,
 728                                                 "Failed to enable MCLK: %d\n",
 729                                                 ret);
 730                                         return ret;
 731                                 }
 732                         }
 733
 734                         /* Set VMID to 2x50k */
 735                         snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
 736                         break;
 737
 738                 case SND_SOC_BIAS_ON:
 739                         if (!IS_ERR(wm8960->mclk))
 740                                 clk_disable_unprepare(wm8960->mclk);
 741                         break;
 742
 743                 default:
 744                         break;
 745                 }
 746
 747                 break;
 748
 749         case SND_SOC_BIAS_STANDBY:
 750                 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
 751                         regcache_sync(wm8960->regmap);
 752
 753                         /* Enable anti-pop features */
 754                         snd_soc_write(codec, WM8960_APOP1,
 755                                       WM8960_POBCTRL | WM8960_SOFT_ST |
 756                                       WM8960_BUFDCOPEN | WM8960_BUFIOEN);
 757
 758                         /* Enable & ramp VMID at 2x50k */
 759                         snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
 760                         msleep(100);
 761
 762                         /* Enable VREF */
 763                         snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
 764                                             WM8960_VREF);
 765
 766                         /* Disable anti-pop features */
 767                         snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
 768                 }
 769
 770                 /* Set VMID to 2x250k */
 771                 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
 772                 break;
 773
 774         case SND_SOC_BIAS_OFF:
 775                 /* Enable anti-pop features */
 776                 snd_soc_write(codec, WM8960_APOP1,
 777                              WM8960_POBCTRL | WM8960_SOFT_ST |
 778                              WM8960_BUFDCOPEN | WM8960_BUFIOEN);
 779
 780                 /* Disable VMID and VREF, let them discharge */
 781                 snd_soc_write(codec, WM8960_POWER1, 0);
 782                 msleep(600);
 783                 break;
 784         }
 785
 786         return 0;
 787 }
 788
 789 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
 790                                          enum snd_soc_bias_level level)
 791 {
 792         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 793         int reg, ret;
 794
 795         switch (level) {
 796         case SND_SOC_BIAS_ON:
 797                 break;
 798
 799         case SND_SOC_BIAS_PREPARE:
 800                 switch (snd_soc_codec_get_bias_level(codec)) {
 801                 case SND_SOC_BIAS_STANDBY:
 802                         /* Enable anti pop mode */
 803                         snd_soc_update_bits(codec, WM8960_APOP1,
 804                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 805                                             WM8960_BUFDCOPEN,
 806                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 807                                             WM8960_BUFDCOPEN);
 808
 809                         /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
 810                         reg = 0;
 811                         if (wm8960->lout1 && wm8960->lout1->power)
 812                                 reg |= WM8960_PWR2_LOUT1;
 813                         if (wm8960->rout1 && wm8960->rout1->power)
 814                                 reg |= WM8960_PWR2_ROUT1;
 815                         if (wm8960->out3 && wm8960->out3->power)
 816                                 reg |= WM8960_PWR2_OUT3;
 817                         snd_soc_update_bits(codec, WM8960_POWER2,
 818                                             WM8960_PWR2_LOUT1 |
 819                                             WM8960_PWR2_ROUT1 |
 820                                             WM8960_PWR2_OUT3, reg);
 821
 822                         /* Enable VMID at 2*50k */
 823                         snd_soc_update_bits(codec, WM8960_POWER1,
 824                                             WM8960_VMID_MASK, 0x80);
 825
 826                         /* Ramp */
 827                         msleep(100);
 828
 829                         /* Enable VREF */
 830                         snd_soc_update_bits(codec, WM8960_POWER1,
 831                                             WM8960_VREF, WM8960_VREF);
 832
 833                         msleep(100);
 834
 835                         if (!IS_ERR(wm8960->mclk)) {
 836                                 ret = clk_prepare_enable(wm8960->mclk);
 837                                 if (ret) {
 838                                         dev_err(codec->dev,
 839                                                 "Failed to enable MCLK: %d\n",
 840                                                 ret);
 841                                         return ret;
 842                                 }
 843                         }
 844                         break;
 845
 846                 case SND_SOC_BIAS_ON:
 847                         if (!IS_ERR(wm8960->mclk))
 848                                 clk_disable_unprepare(wm8960->mclk);
 849
 850                         /* Enable anti-pop mode */
 851                         snd_soc_update_bits(codec, WM8960_APOP1,
 852                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 853                                             WM8960_BUFDCOPEN,
 854                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 855                                             WM8960_BUFDCOPEN);
 856
 857                         /* Disable VMID and VREF */
 858                         snd_soc_update_bits(codec, WM8960_POWER1,
 859                                             WM8960_VREF | WM8960_VMID_MASK, 0);
 860                         break;
 861
 862                 case SND_SOC_BIAS_OFF:
 863                         regcache_sync(wm8960->regmap);
 864                         break;
 865                 default:
 866                         break;
 867                 }
 868                 break;
 869
 870         case SND_SOC_BIAS_STANDBY:
 871                 switch (snd_soc_codec_get_bias_level(codec)) {
 872                 case SND_SOC_BIAS_PREPARE:
 873                         /* Disable HP discharge */
 874                         snd_soc_update_bits(codec, WM8960_APOP2,
 875                                             WM8960_DISOP | WM8960_DRES_MASK,
 876                                             0);
 877
 878                         /* Disable anti-pop features */
 879                         snd_soc_update_bits(codec, WM8960_APOP1,
 880                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 881                                             WM8960_BUFDCOPEN,
 882                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 883                                             WM8960_BUFDCOPEN);
 884                         break;
 885
 886                 default:
 887                         break;
 888                 }
 889                 break;
 890
 891         case SND_SOC_BIAS_OFF:
 892                 break;
 893         }
 894
 895         return 0;
 896 }
 897
 898 /* PLL divisors */
 899 struct _pll_div {
 900         u32 pre_div:1;
 901         u32 n:4;
 902         u32 k:24;
 903 };
 904
 905 /* The size in bits of the pll divide multiplied by 10
 906  * to allow rounding later */
 907 #define FIXED_PLL_SIZE ((1 << 24) * 10)
 908
 909 static int pll_factors(unsigned int source, unsigned int target,
 910                        struct _pll_div *pll_div)
 911 {
 912         unsigned long long Kpart;
 913         unsigned int K, Ndiv, Nmod;
 914
 915         pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
 916
 917         /* Scale up target to PLL operating frequency */
 918         target *= 4;
 919
 920         Ndiv = target / source;
 921         if (Ndiv < 6) {
 922                 source >>= 1;
 923                 pll_div->pre_div = 1;
 924                 Ndiv = target / source;
 925         } else
 926                 pll_div->pre_div = 0;
 927
 928         if ((Ndiv < 6) || (Ndiv > 12)) {
 929                 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
 930                 return -EINVAL;
 931         }
 932
 933         pll_div->n = Ndiv;
 934         Nmod = target % source;
 935         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
 936
 937         do_div(Kpart, source);
 938
 939         K = Kpart & 0xFFFFFFFF;
 940
 941         /* Check if we need to round */
 942         if ((K % 10) >= 5)
 943                 K += 5;
 944
 945         /* Move down to proper range now rounding is done */
 946         K /= 10;
 947
 948         pll_div->k = K;
 949
 950         pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
 951                  pll_div->n, pll_div->k, pll_div->pre_div);
 952
 953         return 0;
 954 }
 955
 956 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 957                 int source, unsigned int freq_in, unsigned int freq_out)
 958 {
 959         struct snd_soc_codec *codec = codec_dai->codec;
 960         u16 reg;
 961         static struct _pll_div pll_div;
 962         int ret;
 963
 964         if (freq_in && freq_out) {
 965                 ret = pll_factors(freq_in, freq_out, &pll_div);
 966                 if (ret != 0)
 967                         return ret;
 968         }
 969
 970         /* Disable the PLL: even if we are changing the frequency the
 971          * PLL needs to be disabled while we do so. */
 972         snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
 973         snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
 974
 975         if (!freq_in || !freq_out)
 976                 return 0;
 977
 978         reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
 979         reg |= pll_div.pre_div << 4;
 980         reg |= pll_div.n;
 981
 982         if (pll_div.k) {
 983                 reg |= 0x20;
 984
 985                 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
 986                 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
 987                 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
 988         }
 989         snd_soc_write(codec, WM8960_PLL1, reg);
 990
 991         /* Turn it on */
 992         snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
 993         msleep(250);
 994         snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
 995
 996         return 0;
 997 }
 998
 999 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1000                 int div_id, int div)
1001 {
1002         struct snd_soc_codec *codec = codec_dai->codec;
1003         u16 reg;
1004
1005         switch (div_id) {
1006         case WM8960_SYSCLKDIV:
1007                 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
1008                 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1009                 break;
1010         case WM8960_DACDIV:
1011                 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
1012                 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1013                 break;
1014         case WM8960_OPCLKDIV:
1015                 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
1016                 snd_soc_write(codec, WM8960_PLL1, reg | div);
1017                 break;
1018         case WM8960_DCLKDIV:
1019                 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
1020                 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
1021                 break;
1022         case WM8960_TOCLKSEL:
1023                 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
1024                 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
1025                 break;
1026         default:
1027                 return -EINVAL;
1028         }
1029
1030         return 0;
1031 }
1032
1033 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
1034                                  enum snd_soc_bias_level level)
1035 {
1036         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1037
1038         return wm8960->set_bias_level(codec, level);
1039 }
1040
1041 static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1042                                         unsigned int freq, int dir)
1043 {
1044         struct snd_soc_codec *codec = dai->codec;
1045         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1046
1047         switch (clk_id) {
1048         case WM8960_SYSCLK_MCLK:
1049                 snd_soc_update_bits(codec, WM8960_CLOCK1,
1050                                         0x1, WM8960_SYSCLK_MCLK);
1051                 break;
1052         case WM8960_SYSCLK_PLL:
1053                 snd_soc_update_bits(codec, WM8960_CLOCK1,
1054                                         0x1, WM8960_SYSCLK_PLL);
1055                 break;
1056         default:
1057                 return -EINVAL;
1058         }
1059
1060         wm8960->sysclk = freq;
1061
1062         return 0;
1063 }
1064
1065 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1066
1067 #define WM8960_FORMATS \
1068         (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1069         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1070
1071 static const struct snd_soc_dai_ops wm8960_dai_ops = {
1072         .hw_params = wm8960_hw_params,
1073         .digital_mute = wm8960_mute,
1074         .set_fmt = wm8960_set_dai_fmt,
1075         .set_clkdiv = wm8960_set_dai_clkdiv,
1076         .set_pll = wm8960_set_dai_pll,
1077         .set_sysclk = wm8960_set_dai_sysclk,
1078 };
1079
1080 static struct snd_soc_dai_driver wm8960_dai = {
1081         .name = "wm8960-hifi",
1082         .playback = {
1083                 .stream_name = "Playback",
1084                 .channels_min = 1,
1085                 .channels_max = 2,
1086                 .rates = WM8960_RATES,
1087                 .formats = WM8960_FORMATS,},
1088         .capture = {
1089                 .stream_name = "Capture",
1090                 .channels_min = 1,
1091                 .channels_max = 2,
1092                 .rates = WM8960_RATES,
1093                 .formats = WM8960_FORMATS,},
1094         .ops = &wm8960_dai_ops,
1095         .symmetric_rates = 1,
1096 };
1097
1098 static int wm8960_probe(struct snd_soc_codec *codec)
1099 {
1100         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1101         struct wm8960_data *pdata = &wm8960->pdata;
1102
1103         if (pdata->capless)
1104                 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1105         else
1106                 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1107
1108         snd_soc_add_codec_controls(codec, wm8960_snd_controls,
1109                                      ARRAY_SIZE(wm8960_snd_controls));
1110         wm8960_add_widgets(codec);
1111
1112         return 0;
1113 }
1114
1115 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1116         .probe =        wm8960_probe,
1117         .set_bias_level = wm8960_set_bias_level,
1118         .suspend_bias_off = true,
1119 };
1120
1121 static const struct regmap_config wm8960_regmap = {
1122         .reg_bits = 7,
1123         .val_bits = 9,
1124         .max_register = WM8960_PLL4,
1125
1126         .reg_defaults = wm8960_reg_defaults,
1127         .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1128         .cache_type = REGCACHE_RBTREE,
1129
1130         .volatile_reg = wm8960_volatile,
1131 };
1132
1133 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1134                                 struct wm8960_data *pdata)
1135 {
1136         const struct device_node *np = i2c->dev.of_node;
1137
1138         if (of_property_read_bool(np, "wlf,capless"))
1139                 pdata->capless = true;
1140
1141         if (of_property_read_bool(np, "wlf,shared-lrclk"))
1142                 pdata->shared_lrclk = true;
1143 }
1144
1145 static int wm8960_i2c_probe(struct i2c_client *i2c,
1146                             const struct i2c_device_id *id)
1147 {
1148         struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1149         struct wm8960_priv *wm8960;
1150         int ret;
1151
1152         wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1153                               GFP_KERNEL);
1154         if (wm8960 == NULL)
1155                 return -ENOMEM;
1156
1157         wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1158         if (IS_ERR(wm8960->mclk)) {
1159                 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1160                         return -EPROBE_DEFER;
1161         }
1162
1163         wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1164         if (IS_ERR(wm8960->regmap))
1165                 return PTR_ERR(wm8960->regmap);
1166
1167         if (pdata)
1168                 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1169         else if (i2c->dev.of_node)
1170                 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1171
1172         ret = wm8960_reset(wm8960->regmap);
1173         if (ret != 0) {
1174                 dev_err(&i2c->dev, "Failed to issue reset\n");
1175                 return ret;
1176         }
1177
1178         if (wm8960->pdata.shared_lrclk) {
1179                 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1180                                          0x4, 0x4);
1181                 if (ret != 0) {
1182                         dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1183                                 ret);
1184                         return ret;
1185                 }
1186         }
1187
1188         /* Latch the update bits */
1189         regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1190         regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1191         regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1192         regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1193         regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1194         regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1195         regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1196         regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1197         regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1198         regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1199
1200         i2c_set_clientdata(i2c, wm8960);
1201
1202         ret = snd_soc_register_codec(&i2c->dev,
1203                         &soc_codec_dev_wm8960, &wm8960_dai, 1);
1204
1205         return ret;
1206 }
1207
1208 static int wm8960_i2c_remove(struct i2c_client *client)
1209 {
1210         snd_soc_unregister_codec(&client->dev);
1211         return 0;
1212 }
1213
1214 static const struct i2c_device_id wm8960_i2c_id[] = {
1215         { "wm8960", 0 },
1216         { }
1217 };
1218 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1219
1220 static const struct of_device_id wm8960_of_match[] = {
1221        { .compatible = "wlf,wm8960", },
1222        { }
1223 };
1224 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1225
1226 static struct i2c_driver wm8960_i2c_driver = {
1227         .driver = {
1228                 .name = "wm8960",
1229                 .owner = THIS_MODULE,
1230                 .of_match_table = wm8960_of_match,
1231         },
1232         .probe =    wm8960_i2c_probe,
1233         .remove =   wm8960_i2c_remove,
1234         .id_table = wm8960_i2c_id,
1235 };
1236
1237 module_i2c_driver(wm8960_i2c_driver);
1238
1239 MODULE_DESCRIPTION("ASoC WM8960 driver");
1240 MODULE_AUTHOR("Liam Girdwood");
1241 MODULE_LICENSE("GPL");