1 /* 2 * wm8753.c -- WM8753 ALSA Soc Audio driver 3 * 4 * Copyright 2003-11 Wolfson Microelectronics PLC. 5 * Author: Liam Girdwood <lrg@slimlogic.co.uk> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * Notes: 13 * The WM8753 is a low power, high quality stereo codec with integrated PCM 14 * codec designed for portable digital telephony applications. 15 * 16 * Dual DAI:- 17 * 18 * This driver support 2 DAI PCM's. This makes the default PCM available for 19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for 20 * voice. 21 * 22 * Please note that the voice PCM can be connected directly to a Bluetooth 23 * codec or GSM modem and thus cannot be read or written to, although it is 24 * available to be configured with snd_hw_params(), etc and kcontrols in the 25 * normal alsa manner. 26 * 27 * Fast DAI switching:- 28 * 29 * The driver can now fast switch between the DAI configurations via a 30 * an alsa kcontrol. This allows the PCM to remain open. 31 * 32 */ 33 34 #include <linux/module.h> 35 #include <linux/kernel.h> 36 #include <linux/init.h> 37 #include <linux/delay.h> 38 #include <linux/pm.h> 39 #include <linux/i2c.h> 40 #include <linux/of_device.h> 41 #include <linux/regmap.h> 42 #include <linux/spi/spi.h> 43 #include <linux/slab.h> 44 #include <sound/core.h> 45 #include <sound/pcm.h> 46 #include <sound/pcm_params.h> 47 #include <sound/soc.h> 48 #include <sound/initval.h> 49 #include <sound/tlv.h> 50 #include <asm/div64.h> 51 52 #include "wm8753.h" 53 54 static int caps_charge = 2000; 55 module_param(caps_charge, int, 0); 56 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)"); 57 58 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, 59 unsigned int fmt); 60 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, 61 unsigned int fmt); 62 63 /* 64 * wm8753 register cache 65 * We can't read the WM8753 register space when we 66 * are using 2 wire for device control, so we cache them instead. 67 */ 68 static const struct reg_default wm8753_reg_defaults[] = { 69 { 0x00, 0x0000 }, 70 { 0x01, 0x0008 }, 71 { 0x02, 0x0000 }, 72 { 0x03, 0x000a }, 73 { 0x04, 0x000a }, 74 { 0x05, 0x0033 }, 75 { 0x06, 0x0000 }, 76 { 0x07, 0x0007 }, 77 { 0x08, 0x00ff }, 78 { 0x09, 0x00ff }, 79 { 0x0a, 0x000f }, 80 { 0x0b, 0x000f }, 81 { 0x0c, 0x007b }, 82 { 0x0d, 0x0000 }, 83 { 0x0e, 0x0032 }, 84 { 0x0f, 0x0000 }, 85 { 0x10, 0x00c3 }, 86 { 0x11, 0x00c3 }, 87 { 0x12, 0x00c0 }, 88 { 0x13, 0x0000 }, 89 { 0x14, 0x0000 }, 90 { 0x15, 0x0000 }, 91 { 0x16, 0x0000 }, 92 { 0x17, 0x0000 }, 93 { 0x18, 0x0000 }, 94 { 0x19, 0x0000 }, 95 { 0x1a, 0x0000 }, 96 { 0x1b, 0x0000 }, 97 { 0x1c, 0x0000 }, 98 { 0x1d, 0x0000 }, 99 { 0x1e, 0x0000 }, 100 { 0x1f, 0x0000 }, 101 { 0x20, 0x0055 }, 102 { 0x21, 0x0005 }, 103 { 0x22, 0x0050 }, 104 { 0x23, 0x0055 }, 105 { 0x24, 0x0050 }, 106 { 0x25, 0x0055 }, 107 { 0x26, 0x0050 }, 108 { 0x27, 0x0055 }, 109 { 0x28, 0x0079 }, 110 { 0x29, 0x0079 }, 111 { 0x2a, 0x0079 }, 112 { 0x2b, 0x0079 }, 113 { 0x2c, 0x0079 }, 114 { 0x2d, 0x0000 }, 115 { 0x2e, 0x0000 }, 116 { 0x2f, 0x0000 }, 117 { 0x30, 0x0000 }, 118 { 0x31, 0x0097 }, 119 { 0x32, 0x0097 }, 120 { 0x33, 0x0000 }, 121 { 0x34, 0x0004 }, 122 { 0x35, 0x0000 }, 123 { 0x36, 0x0083 }, 124 { 0x37, 0x0024 }, 125 { 0x38, 0x01ba }, 126 { 0x39, 0x0000 }, 127 { 0x3a, 0x0083 }, 128 { 0x3b, 0x0024 }, 129 { 0x3c, 0x01ba }, 130 { 0x3d, 0x0000 }, 131 { 0x3e, 0x0000 }, 132 { 0x3f, 0x0000 }, 133 }; 134 135 static bool wm8753_volatile(struct device *dev, unsigned int reg) 136 { 137 return reg == WM8753_RESET; 138 } 139 140 /* codec private data */ 141 struct wm8753_priv { 142 struct regmap *regmap; 143 unsigned int sysclk; 144 unsigned int pcmclk; 145 146 unsigned int voice_fmt; 147 unsigned int hifi_fmt; 148 149 int dai_func; 150 struct delayed_work charge_work; 151 }; 152 153 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0) 154 155 /* 156 * WM8753 Controls 157 */ 158 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"}; 159 static const char *wm8753_base_filter[] = 160 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz", 161 "100Hz @ 8kHz", "200Hz @ 8kHz"}; 162 static const char *wm8753_treble[] = {"8kHz", "4kHz"}; 163 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"}; 164 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"}; 165 static const char *wm8753_3d_func[] = {"Capture", "Playback"}; 166 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"}; 167 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"}; 168 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"}; 169 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"}; 170 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"}; 171 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2", 172 "Line 1", "Line 2"}; 173 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"}; 174 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"}; 175 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"}; 176 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"}; 177 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2", 178 "Right PGA"}; 179 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right", 180 "Left + Right"}; 181 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"}; 182 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"}; 183 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"}; 184 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"}; 185 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left", 186 "Analogue Mix Right", "Digital Mono Mix"}; 187 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k", 188 "82Hz @ 8kHz", "170Hz @ 8kHz"}; 189 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"}; 190 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"}; 191 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"}; 192 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC", 193 "Channel Swap"}; 194 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"}; 195 196 static const struct soc_enum wm8753_enum[] = { 197 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base), 198 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter), 199 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble), 200 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func), 201 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type), 202 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func), 203 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc), 204 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc), 205 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp), 206 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix), 207 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase), 208 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix), 209 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux), 210 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux), 211 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux), 212 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel), 213 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux), 214 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src), 215 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3), 216 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4), 217 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel), 218 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel), 219 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc), 220 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp), 221 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter), 222 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel), 223 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode), 224 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel), 225 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase), 226 }; 227 228 229 static int wm8753_get_dai(struct snd_kcontrol *kcontrol, 230 struct snd_ctl_elem_value *ucontrol) 231 { 232 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 233 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 234 235 ucontrol->value.enumerated.item[0] = wm8753->dai_func; 236 return 0; 237 } 238 239 static int wm8753_set_dai(struct snd_kcontrol *kcontrol, 240 struct snd_ctl_elem_value *ucontrol) 241 { 242 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 243 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 244 u16 ioctl; 245 246 if (wm8753->dai_func == ucontrol->value.enumerated.item[0]) 247 return 0; 248 249 if (snd_soc_codec_is_active(codec)) 250 return -EBUSY; 251 252 ioctl = snd_soc_read(codec, WM8753_IOCTL); 253 254 wm8753->dai_func = ucontrol->value.enumerated.item[0]; 255 256 if (((ioctl >> 2) & 0x3) == wm8753->dai_func) 257 return 1; 258 259 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2); 260 snd_soc_write(codec, WM8753_IOCTL, ioctl); 261 262 263 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt); 264 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt); 265 266 return 1; 267 } 268 269 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0); 270 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0); 271 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); 272 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); 273 static const DECLARE_TLV_DB_RANGE(out_tlv, 274 /* 0000000 - 0101111 = "Analogue mute" */ 275 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0), 276 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0) 277 ); 278 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0); 279 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0); 280 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); 281 282 static const struct snd_kcontrol_new wm8753_snd_controls[] = { 283 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv), 284 285 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0, 286 adc_tlv), 287 288 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, 289 0, 127, 0, out_tlv), 290 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, 291 127, 0, out_tlv), 292 293 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv), 294 295 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, 296 1, mix_tlv), 297 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, 298 7, 1, mix_tlv), 299 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, 300 1, voice_mix_tlv), 301 302 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7, 303 1, 0), 304 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, 305 1, 0), 306 307 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv), 308 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1, 309 mix_tlv), 310 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1, 311 voice_mix_tlv), 312 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0), 313 314 SOC_ENUM("Bass Boost", wm8753_enum[0]), 315 SOC_ENUM("Bass Filter", wm8753_enum[1]), 316 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1), 317 318 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1), 319 SOC_ENUM("Treble Cut-off", wm8753_enum[2]), 320 321 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1, 322 rec_mix_tlv), 323 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1, 324 rec_mix_tlv), 325 326 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0, 327 pga_tlv), 328 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0), 329 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1), 330 331 SOC_ENUM("Capture Filter Select", wm8753_enum[23]), 332 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]), 333 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1), 334 335 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0), 336 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0), 337 SOC_ENUM("ALC Capture Function", wm8753_enum[3]), 338 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0), 339 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1), 340 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1), 341 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0), 342 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0), 343 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]), 344 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0), 345 346 SOC_ENUM("3D Function", wm8753_enum[5]), 347 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]), 348 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]), 349 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0), 350 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0), 351 352 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0), 353 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0), 354 355 SOC_ENUM("De-emphasis", wm8753_enum[8]), 356 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]), 357 SOC_ENUM("Playback Phase", wm8753_enum[10]), 358 359 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv), 360 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv), 361 362 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai), 363 364 SOC_ENUM("ADC Data Select", wm8753_enum[27]), 365 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]), 366 }; 367 368 /* 369 * _DAPM_ Controls 370 */ 371 372 /* Left Mixer */ 373 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = { 374 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0), 375 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0), 376 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0), 377 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0), 378 }; 379 380 /* Right mixer */ 381 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = { 382 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0), 383 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0), 384 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0), 385 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0), 386 }; 387 388 /* Mono mixer */ 389 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = { 390 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0), 391 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0), 392 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0), 393 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0), 394 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0), 395 }; 396 397 /* Mono 2 Mux */ 398 static const struct snd_kcontrol_new wm8753_mono2_controls = 399 SOC_DAPM_ENUM("Route", wm8753_enum[17]); 400 401 /* Out 3 Mux */ 402 static const struct snd_kcontrol_new wm8753_out3_controls = 403 SOC_DAPM_ENUM("Route", wm8753_enum[18]); 404 405 /* Out 4 Mux */ 406 static const struct snd_kcontrol_new wm8753_out4_controls = 407 SOC_DAPM_ENUM("Route", wm8753_enum[19]); 408 409 /* ADC Mono Mix */ 410 static const struct snd_kcontrol_new wm8753_adc_mono_controls = 411 SOC_DAPM_ENUM("Route", wm8753_enum[22]); 412 413 /* Record mixer */ 414 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = { 415 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0), 416 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0), 417 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0), 418 }; 419 420 /* Left ADC mux */ 421 static const struct snd_kcontrol_new wm8753_adc_left_controls = 422 SOC_DAPM_ENUM("Route", wm8753_enum[21]); 423 424 /* Right ADC mux */ 425 static const struct snd_kcontrol_new wm8753_adc_right_controls = 426 SOC_DAPM_ENUM("Route", wm8753_enum[20]); 427 428 /* MIC mux */ 429 static const struct snd_kcontrol_new wm8753_mic_mux_controls = 430 SOC_DAPM_ENUM("Route", wm8753_enum[16]); 431 432 /* ALC mixer */ 433 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = { 434 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0), 435 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0), 436 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0), 437 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0), 438 }; 439 440 /* Left Line mux */ 441 static const struct snd_kcontrol_new wm8753_line_left_controls = 442 SOC_DAPM_ENUM("Route", wm8753_enum[14]); 443 444 /* Right Line mux */ 445 static const struct snd_kcontrol_new wm8753_line_right_controls = 446 SOC_DAPM_ENUM("Route", wm8753_enum[13]); 447 448 /* Mono Line mux */ 449 static const struct snd_kcontrol_new wm8753_line_mono_controls = 450 SOC_DAPM_ENUM("Route", wm8753_enum[12]); 451 452 /* Line mux and mixer */ 453 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls = 454 SOC_DAPM_ENUM("Route", wm8753_enum[11]); 455 456 /* Rx mux and mixer */ 457 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls = 458 SOC_DAPM_ENUM("Route", wm8753_enum[15]); 459 460 /* Mic Selector Mux */ 461 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls = 462 SOC_DAPM_ENUM("Route", wm8753_enum[25]); 463 464 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { 465 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0), 466 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0, 467 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)), 468 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0), 469 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0), 470 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0), 471 SND_SOC_DAPM_OUTPUT("LOUT1"), 472 SND_SOC_DAPM_OUTPUT("LOUT2"), 473 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0, 474 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)), 475 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0), 476 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0), 477 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0), 478 SND_SOC_DAPM_OUTPUT("ROUT1"), 479 SND_SOC_DAPM_OUTPUT("ROUT2"), 480 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0, 481 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)), 482 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0), 483 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0), 484 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0), 485 SND_SOC_DAPM_OUTPUT("MONO1"), 486 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls), 487 SND_SOC_DAPM_OUTPUT("MONO2"), 488 SND_SOC_DAPM_MIXER("Out3 Left + Right", SND_SOC_NOPM, 0, 0, NULL, 0), 489 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls), 490 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0), 491 SND_SOC_DAPM_OUTPUT("OUT3"), 492 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls), 493 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0), 494 SND_SOC_DAPM_OUTPUT("OUT4"), 495 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0, 496 &wm8753_record_mixer_controls[0], 497 ARRAY_SIZE(wm8753_record_mixer_controls)), 498 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0), 499 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0), 500 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0, 501 &wm8753_adc_mono_controls), 502 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0, 503 &wm8753_adc_mono_controls), 504 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0, 505 &wm8753_adc_left_controls), 506 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0, 507 &wm8753_adc_right_controls), 508 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0, 509 &wm8753_mic_mux_controls), 510 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0), 511 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0), 512 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0, 513 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)), 514 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0, 515 &wm8753_line_left_controls), 516 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0, 517 &wm8753_line_right_controls), 518 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0, 519 &wm8753_line_mono_controls), 520 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0, 521 &wm8753_line_mux_mix_controls), 522 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0, 523 &wm8753_rx_mux_mix_controls), 524 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0), 525 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0), 526 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0, 527 &wm8753_mic_sel_mux_controls), 528 SND_SOC_DAPM_INPUT("LINE1"), 529 SND_SOC_DAPM_INPUT("LINE2"), 530 SND_SOC_DAPM_INPUT("RXP"), 531 SND_SOC_DAPM_INPUT("RXN"), 532 SND_SOC_DAPM_INPUT("ACIN"), 533 SND_SOC_DAPM_OUTPUT("ACOP"), 534 SND_SOC_DAPM_INPUT("MIC1N"), 535 SND_SOC_DAPM_INPUT("MIC1"), 536 SND_SOC_DAPM_INPUT("MIC2N"), 537 SND_SOC_DAPM_INPUT("MIC2"), 538 SND_SOC_DAPM_VMID("VREF"), 539 }; 540 541 static const struct snd_soc_dapm_route wm8753_dapm_routes[] = { 542 /* left mixer */ 543 {"Left Mixer", "Left Playback Switch", "Left DAC"}, 544 {"Left Mixer", "Voice Playback Switch", "Voice DAC"}, 545 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 546 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"}, 547 548 /* right mixer */ 549 {"Right Mixer", "Right Playback Switch", "Right DAC"}, 550 {"Right Mixer", "Voice Playback Switch", "Voice DAC"}, 551 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 552 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"}, 553 554 /* mono mixer */ 555 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"}, 556 {"Mono Mixer", "Left Playback Switch", "Left DAC"}, 557 {"Mono Mixer", "Right Playback Switch", "Right DAC"}, 558 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, 559 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"}, 560 561 /* left out */ 562 {"Left Out 1", NULL, "Left Mixer"}, 563 {"Left Out 2", NULL, "Left Mixer"}, 564 {"LOUT1", NULL, "Left Out 1"}, 565 {"LOUT2", NULL, "Left Out 2"}, 566 567 /* right out */ 568 {"Right Out 1", NULL, "Right Mixer"}, 569 {"Right Out 2", NULL, "Right Mixer"}, 570 {"ROUT1", NULL, "Right Out 1"}, 571 {"ROUT2", NULL, "Right Out 2"}, 572 573 /* mono 1 out */ 574 {"Mono Out 1", NULL, "Mono Mixer"}, 575 {"MONO1", NULL, "Mono Out 1"}, 576 577 /* mono 2 out */ 578 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"}, 579 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"}, 580 {"Mono 2 Mux", "Left", "Left Mixer"}, 581 {"Mono 2 Mux", "Right", "Right Mixer"}, 582 {"Mono Out 2", NULL, "Mono 2 Mux"}, 583 {"MONO2", NULL, "Mono Out 2"}, 584 585 /* out 3 */ 586 {"Out3 Left + Right", NULL, "Left Mixer"}, 587 {"Out3 Left + Right", NULL, "Right Mixer"}, 588 {"Out3 Mux", "VREF", "VREF"}, 589 {"Out3 Mux", "Left + Right", "Out3 Left + Right"}, 590 {"Out3 Mux", "ROUT2", "ROUT2"}, 591 {"Out 3", NULL, "Out3 Mux"}, 592 {"OUT3", NULL, "Out 3"}, 593 594 /* out 4 */ 595 {"Out4 Mux", "VREF", "VREF"}, 596 {"Out4 Mux", "Capture ST", "Playback Mixer"}, 597 {"Out4 Mux", "LOUT2", "LOUT2"}, 598 {"Out 4", NULL, "Out4 Mux"}, 599 {"OUT4", NULL, "Out 4"}, 600 601 /* record mixer */ 602 {"Playback Mixer", "Left Capture Switch", "Left Mixer"}, 603 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"}, 604 {"Playback Mixer", "Right Capture Switch", "Right Mixer"}, 605 606 /* Mic/SideTone Mux */ 607 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"}, 608 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"}, 609 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"}, 610 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"}, 611 612 /* Capture Left Mux */ 613 {"Capture Left Mux", "PGA", "Left Capture Volume"}, 614 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"}, 615 {"Capture Left Mux", "Line", "LINE1"}, 616 617 /* Capture Right Mux */ 618 {"Capture Right Mux", "PGA", "Right Capture Volume"}, 619 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"}, 620 {"Capture Right Mux", "Sidetone", "Playback Mixer"}, 621 622 /* Mono Capture mixer-mux */ 623 {"Capture Right Mixer", "Stereo", "Capture Right Mux"}, 624 {"Capture Left Mixer", "Stereo", "Capture Left Mux"}, 625 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"}, 626 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"}, 627 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"}, 628 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"}, 629 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"}, 630 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"}, 631 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"}, 632 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"}, 633 634 /* ADC */ 635 {"Left ADC", NULL, "Capture Left Mixer"}, 636 {"Right ADC", NULL, "Capture Right Mixer"}, 637 638 /* Left Capture Volume */ 639 {"Left Capture Volume", NULL, "ACIN"}, 640 641 /* Right Capture Volume */ 642 {"Right Capture Volume", NULL, "Mic 2 Volume"}, 643 644 /* ALC Mixer */ 645 {"ALC Mixer", "Line Capture Switch", "Line Mixer"}, 646 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"}, 647 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"}, 648 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"}, 649 650 /* Line Left Mux */ 651 {"Line Left Mux", "Line 1", "LINE1"}, 652 {"Line Left Mux", "Rx Mix", "Rx Mixer"}, 653 654 /* Line Right Mux */ 655 {"Line Right Mux", "Line 2", "LINE2"}, 656 {"Line Right Mux", "Rx Mix", "Rx Mixer"}, 657 658 /* Line Mono Mux */ 659 {"Line Mono Mux", "Line Mix", "Line Mixer"}, 660 {"Line Mono Mux", "Rx Mix", "Rx Mixer"}, 661 662 /* Line Mixer/Mux */ 663 {"Line Mixer", "Line 1 + 2", "LINE1"}, 664 {"Line Mixer", "Line 1 - 2", "LINE1"}, 665 {"Line Mixer", "Line 1 + 2", "LINE2"}, 666 {"Line Mixer", "Line 1 - 2", "LINE2"}, 667 {"Line Mixer", "Line 1", "LINE1"}, 668 {"Line Mixer", "Line 2", "LINE2"}, 669 670 /* Rx Mixer/Mux */ 671 {"Rx Mixer", "RXP - RXN", "RXP"}, 672 {"Rx Mixer", "RXP + RXN", "RXP"}, 673 {"Rx Mixer", "RXP - RXN", "RXN"}, 674 {"Rx Mixer", "RXP + RXN", "RXN"}, 675 {"Rx Mixer", "RXP", "RXP"}, 676 {"Rx Mixer", "RXN", "RXN"}, 677 678 /* Mic 1 Volume */ 679 {"Mic 1 Volume", NULL, "MIC1N"}, 680 {"Mic 1 Volume", NULL, "Mic Selection Mux"}, 681 682 /* Mic 2 Volume */ 683 {"Mic 2 Volume", NULL, "MIC2N"}, 684 {"Mic 2 Volume", NULL, "MIC2"}, 685 686 /* Mic Selector Mux */ 687 {"Mic Selection Mux", "Mic 1", "MIC1"}, 688 {"Mic Selection Mux", "Mic 2", "MIC2N"}, 689 {"Mic Selection Mux", "Mic 3", "MIC2"}, 690 691 /* ACOP */ 692 {"ACOP", NULL, "ALC Mixer"}, 693 }; 694 695 /* PLL divisors */ 696 struct _pll_div { 697 u32 div2:1; 698 u32 n:4; 699 u32 k:24; 700 }; 701 702 /* The size in bits of the pll divide multiplied by 10 703 * to allow rounding later */ 704 #define FIXED_PLL_SIZE ((1 << 22) * 10) 705 706 static void pll_factors(struct _pll_div *pll_div, unsigned int target, 707 unsigned int source) 708 { 709 u64 Kpart; 710 unsigned int K, Ndiv, Nmod; 711 712 Ndiv = target / source; 713 if (Ndiv < 6) { 714 source >>= 1; 715 pll_div->div2 = 1; 716 Ndiv = target / source; 717 } else 718 pll_div->div2 = 0; 719 720 if ((Ndiv < 6) || (Ndiv > 12)) 721 printk(KERN_WARNING 722 "wm8753: unsupported N = %u\n", Ndiv); 723 724 pll_div->n = Ndiv; 725 Nmod = target % source; 726 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 727 728 do_div(Kpart, source); 729 730 K = Kpart & 0xFFFFFFFF; 731 732 /* Check if we need to round */ 733 if ((K % 10) >= 5) 734 K += 5; 735 736 /* Move down to proper range now rounding is done */ 737 K /= 10; 738 739 pll_div->k = K; 740 } 741 742 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 743 int source, unsigned int freq_in, unsigned int freq_out) 744 { 745 u16 reg, enable; 746 int offset; 747 struct snd_soc_codec *codec = codec_dai->codec; 748 749 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2) 750 return -ENODEV; 751 752 if (pll_id == WM8753_PLL1) { 753 offset = 0; 754 enable = 0x10; 755 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef; 756 } else { 757 offset = 4; 758 enable = 0x8; 759 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7; 760 } 761 762 if (!freq_in || !freq_out) { 763 /* disable PLL */ 764 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026); 765 snd_soc_write(codec, WM8753_CLOCK, reg); 766 return 0; 767 } else { 768 u16 value = 0; 769 struct _pll_div pll_div; 770 771 pll_factors(&pll_div, freq_out * 8, freq_in); 772 773 /* set up N and K PLL divisor ratios */ 774 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */ 775 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18); 776 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value); 777 778 /* bits 8:0 = PLL_K[17:9] */ 779 value = (pll_div.k & 0x03fe00) >> 9; 780 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value); 781 782 /* bits 8:0 = PLL_K[8:0] */ 783 value = pll_div.k & 0x0001ff; 784 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value); 785 786 /* set PLL as input and enable */ 787 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 | 788 (pll_div.div2 << 3)); 789 snd_soc_write(codec, WM8753_CLOCK, reg | enable); 790 } 791 return 0; 792 } 793 794 struct _coeff_div { 795 u32 mclk; 796 u32 rate; 797 u8 sr:5; 798 u8 usb:1; 799 }; 800 801 /* codec hifi mclk (after PLL) clock divider coefficients */ 802 static const struct _coeff_div coeff_div[] = { 803 /* 8k */ 804 {12288000, 8000, 0x6, 0x0}, 805 {11289600, 8000, 0x16, 0x0}, 806 {18432000, 8000, 0x7, 0x0}, 807 {16934400, 8000, 0x17, 0x0}, 808 {12000000, 8000, 0x6, 0x1}, 809 810 /* 11.025k */ 811 {11289600, 11025, 0x18, 0x0}, 812 {16934400, 11025, 0x19, 0x0}, 813 {12000000, 11025, 0x19, 0x1}, 814 815 /* 16k */ 816 {12288000, 16000, 0xa, 0x0}, 817 {18432000, 16000, 0xb, 0x0}, 818 {12000000, 16000, 0xa, 0x1}, 819 820 /* 22.05k */ 821 {11289600, 22050, 0x1a, 0x0}, 822 {16934400, 22050, 0x1b, 0x0}, 823 {12000000, 22050, 0x1b, 0x1}, 824 825 /* 32k */ 826 {12288000, 32000, 0xc, 0x0}, 827 {18432000, 32000, 0xd, 0x0}, 828 {12000000, 32000, 0xa, 0x1}, 829 830 /* 44.1k */ 831 {11289600, 44100, 0x10, 0x0}, 832 {16934400, 44100, 0x11, 0x0}, 833 {12000000, 44100, 0x11, 0x1}, 834 835 /* 48k */ 836 {12288000, 48000, 0x0, 0x0}, 837 {18432000, 48000, 0x1, 0x0}, 838 {12000000, 48000, 0x0, 0x1}, 839 840 /* 88.2k */ 841 {11289600, 88200, 0x1e, 0x0}, 842 {16934400, 88200, 0x1f, 0x0}, 843 {12000000, 88200, 0x1f, 0x1}, 844 845 /* 96k */ 846 {12288000, 96000, 0xe, 0x0}, 847 {18432000, 96000, 0xf, 0x0}, 848 {12000000, 96000, 0xe, 0x1}, 849 }; 850 851 static int get_coeff(int mclk, int rate) 852 { 853 int i; 854 855 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 856 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) 857 return i; 858 } 859 return -EINVAL; 860 } 861 862 /* 863 * Clock after PLL and dividers 864 */ 865 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai, 866 int clk_id, unsigned int freq, int dir) 867 { 868 struct snd_soc_codec *codec = codec_dai->codec; 869 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 870 871 switch (freq) { 872 case 11289600: 873 case 12000000: 874 case 12288000: 875 case 16934400: 876 case 18432000: 877 if (clk_id == WM8753_MCLK) { 878 wm8753->sysclk = freq; 879 return 0; 880 } else if (clk_id == WM8753_PCMCLK) { 881 wm8753->pcmclk = freq; 882 return 0; 883 } 884 break; 885 } 886 return -EINVAL; 887 } 888 889 /* 890 * Set's ADC and Voice DAC format. 891 */ 892 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec, 893 unsigned int fmt) 894 { 895 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec; 896 897 /* interface format */ 898 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 899 case SND_SOC_DAIFMT_I2S: 900 voice |= 0x0002; 901 break; 902 case SND_SOC_DAIFMT_RIGHT_J: 903 break; 904 case SND_SOC_DAIFMT_LEFT_J: 905 voice |= 0x0001; 906 break; 907 case SND_SOC_DAIFMT_DSP_A: 908 voice |= 0x0003; 909 break; 910 case SND_SOC_DAIFMT_DSP_B: 911 voice |= 0x0013; 912 break; 913 default: 914 return -EINVAL; 915 } 916 917 snd_soc_write(codec, WM8753_PCM, voice); 918 return 0; 919 } 920 921 /* 922 * Set PCM DAI bit size and sample rate. 923 */ 924 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream, 925 struct snd_pcm_hw_params *params, 926 struct snd_soc_dai *dai) 927 { 928 struct snd_soc_codec *codec = dai->codec; 929 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 930 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3; 931 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f; 932 933 /* bit size */ 934 switch (params_width(params)) { 935 case 16: 936 break; 937 case 20: 938 voice |= 0x0004; 939 break; 940 case 24: 941 voice |= 0x0008; 942 break; 943 case 32: 944 voice |= 0x000c; 945 break; 946 } 947 948 /* sample rate */ 949 if (params_rate(params) * 384 == wm8753->pcmclk) 950 srate |= 0x80; 951 snd_soc_write(codec, WM8753_SRATE1, srate); 952 953 snd_soc_write(codec, WM8753_PCM, voice); 954 return 0; 955 } 956 957 /* 958 * Set's PCM dai fmt and BCLK. 959 */ 960 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec, 961 unsigned int fmt) 962 { 963 u16 voice, ioctl; 964 965 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f; 966 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d; 967 968 /* set master/slave audio interface */ 969 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 970 case SND_SOC_DAIFMT_CBS_CFS: 971 break; 972 case SND_SOC_DAIFMT_CBM_CFM: 973 ioctl |= 0x2; 974 case SND_SOC_DAIFMT_CBM_CFS: 975 voice |= 0x0040; 976 break; 977 default: 978 return -EINVAL; 979 } 980 981 /* clock inversion */ 982 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 983 case SND_SOC_DAIFMT_DSP_A: 984 case SND_SOC_DAIFMT_DSP_B: 985 /* frame inversion not valid for DSP modes */ 986 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 987 case SND_SOC_DAIFMT_NB_NF: 988 break; 989 case SND_SOC_DAIFMT_IB_NF: 990 voice |= 0x0080; 991 break; 992 default: 993 return -EINVAL; 994 } 995 break; 996 case SND_SOC_DAIFMT_I2S: 997 case SND_SOC_DAIFMT_RIGHT_J: 998 case SND_SOC_DAIFMT_LEFT_J: 999 voice &= ~0x0010; 1000 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1001 case SND_SOC_DAIFMT_NB_NF: 1002 break; 1003 case SND_SOC_DAIFMT_IB_IF: 1004 voice |= 0x0090; 1005 break; 1006 case SND_SOC_DAIFMT_IB_NF: 1007 voice |= 0x0080; 1008 break; 1009 case SND_SOC_DAIFMT_NB_IF: 1010 voice |= 0x0010; 1011 break; 1012 default: 1013 return -EINVAL; 1014 } 1015 break; 1016 default: 1017 return -EINVAL; 1018 } 1019 1020 snd_soc_write(codec, WM8753_PCM, voice); 1021 snd_soc_write(codec, WM8753_IOCTL, ioctl); 1022 return 0; 1023 } 1024 1025 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 1026 int div_id, int div) 1027 { 1028 struct snd_soc_codec *codec = codec_dai->codec; 1029 u16 reg; 1030 1031 switch (div_id) { 1032 case WM8753_PCMDIV: 1033 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f; 1034 snd_soc_write(codec, WM8753_CLOCK, reg | div); 1035 break; 1036 case WM8753_BCLKDIV: 1037 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7; 1038 snd_soc_write(codec, WM8753_SRATE2, reg | div); 1039 break; 1040 case WM8753_VXCLKDIV: 1041 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f; 1042 snd_soc_write(codec, WM8753_SRATE2, reg | div); 1043 break; 1044 default: 1045 return -EINVAL; 1046 } 1047 return 0; 1048 } 1049 1050 /* 1051 * Set's HiFi DAC format. 1052 */ 1053 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec, 1054 unsigned int fmt) 1055 { 1056 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0; 1057 1058 /* interface format */ 1059 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1060 case SND_SOC_DAIFMT_I2S: 1061 hifi |= 0x0002; 1062 break; 1063 case SND_SOC_DAIFMT_RIGHT_J: 1064 break; 1065 case SND_SOC_DAIFMT_LEFT_J: 1066 hifi |= 0x0001; 1067 break; 1068 case SND_SOC_DAIFMT_DSP_A: 1069 hifi |= 0x0003; 1070 break; 1071 case SND_SOC_DAIFMT_DSP_B: 1072 hifi |= 0x0013; 1073 break; 1074 default: 1075 return -EINVAL; 1076 } 1077 1078 snd_soc_write(codec, WM8753_HIFI, hifi); 1079 return 0; 1080 } 1081 1082 /* 1083 * Set's I2S DAI format. 1084 */ 1085 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec, 1086 unsigned int fmt) 1087 { 1088 u16 ioctl, hifi; 1089 1090 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f; 1091 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae; 1092 1093 /* set master/slave audio interface */ 1094 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 1095 case SND_SOC_DAIFMT_CBS_CFS: 1096 break; 1097 case SND_SOC_DAIFMT_CBM_CFM: 1098 ioctl |= 0x1; 1099 case SND_SOC_DAIFMT_CBM_CFS: 1100 hifi |= 0x0040; 1101 break; 1102 default: 1103 return -EINVAL; 1104 } 1105 1106 /* clock inversion */ 1107 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1108 case SND_SOC_DAIFMT_DSP_A: 1109 case SND_SOC_DAIFMT_DSP_B: 1110 /* frame inversion not valid for DSP modes */ 1111 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1112 case SND_SOC_DAIFMT_NB_NF: 1113 break; 1114 case SND_SOC_DAIFMT_IB_NF: 1115 hifi |= 0x0080; 1116 break; 1117 default: 1118 return -EINVAL; 1119 } 1120 break; 1121 case SND_SOC_DAIFMT_I2S: 1122 case SND_SOC_DAIFMT_RIGHT_J: 1123 case SND_SOC_DAIFMT_LEFT_J: 1124 hifi &= ~0x0010; 1125 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1126 case SND_SOC_DAIFMT_NB_NF: 1127 break; 1128 case SND_SOC_DAIFMT_IB_IF: 1129 hifi |= 0x0090; 1130 break; 1131 case SND_SOC_DAIFMT_IB_NF: 1132 hifi |= 0x0080; 1133 break; 1134 case SND_SOC_DAIFMT_NB_IF: 1135 hifi |= 0x0010; 1136 break; 1137 default: 1138 return -EINVAL; 1139 } 1140 break; 1141 default: 1142 return -EINVAL; 1143 } 1144 1145 snd_soc_write(codec, WM8753_HIFI, hifi); 1146 snd_soc_write(codec, WM8753_IOCTL, ioctl); 1147 return 0; 1148 } 1149 1150 /* 1151 * Set PCM DAI bit size and sample rate. 1152 */ 1153 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream, 1154 struct snd_pcm_hw_params *params, 1155 struct snd_soc_dai *dai) 1156 { 1157 struct snd_soc_codec *codec = dai->codec; 1158 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1159 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0; 1160 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3; 1161 int coeff; 1162 1163 /* is digital filter coefficient valid ? */ 1164 coeff = get_coeff(wm8753->sysclk, params_rate(params)); 1165 if (coeff < 0) { 1166 printk(KERN_ERR "wm8753 invalid MCLK or rate\n"); 1167 return coeff; 1168 } 1169 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) | 1170 coeff_div[coeff].usb); 1171 1172 /* bit size */ 1173 switch (params_width(params)) { 1174 case 16: 1175 break; 1176 case 20: 1177 hifi |= 0x0004; 1178 break; 1179 case 24: 1180 hifi |= 0x0008; 1181 break; 1182 case 32: 1183 hifi |= 0x000c; 1184 break; 1185 } 1186 1187 snd_soc_write(codec, WM8753_HIFI, hifi); 1188 return 0; 1189 } 1190 1191 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec, 1192 unsigned int fmt) 1193 { 1194 u16 clock; 1195 1196 /* set clk source as pcmclk */ 1197 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1198 snd_soc_write(codec, WM8753_CLOCK, clock); 1199 1200 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1201 } 1202 1203 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec, 1204 unsigned int fmt) 1205 { 1206 return wm8753_hdac_set_dai_fmt(codec, fmt); 1207 } 1208 1209 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec, 1210 unsigned int fmt) 1211 { 1212 u16 clock; 1213 1214 /* set clk source as pcmclk */ 1215 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1216 snd_soc_write(codec, WM8753_CLOCK, clock); 1217 1218 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1219 } 1220 1221 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec, 1222 unsigned int fmt) 1223 { 1224 u16 clock; 1225 1226 /* set clk source as mclk */ 1227 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; 1228 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4); 1229 1230 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0) 1231 return -EINVAL; 1232 return wm8753_vdac_adc_set_dai_fmt(codec, fmt); 1233 } 1234 1235 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, 1236 unsigned int fmt) 1237 { 1238 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1239 int ret = 0; 1240 1241 switch (wm8753->dai_func) { 1242 case 0: 1243 ret = wm8753_mode1h_set_dai_fmt(codec, fmt); 1244 break; 1245 case 1: 1246 ret = wm8753_mode2_set_dai_fmt(codec, fmt); 1247 break; 1248 case 2: 1249 case 3: 1250 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt); 1251 break; 1252 default: 1253 break; 1254 } 1255 if (ret) 1256 return ret; 1257 1258 return wm8753_i2s_set_dai_fmt(codec, fmt); 1259 } 1260 1261 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai, 1262 unsigned int fmt) 1263 { 1264 struct snd_soc_codec *codec = codec_dai->codec; 1265 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1266 1267 wm8753->hifi_fmt = fmt; 1268 1269 return wm8753_hifi_write_dai_fmt(codec, fmt); 1270 }; 1271 1272 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, 1273 unsigned int fmt) 1274 { 1275 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1276 int ret = 0; 1277 1278 if (wm8753->dai_func != 0) 1279 return 0; 1280 1281 ret = wm8753_mode1v_set_dai_fmt(codec, fmt); 1282 if (ret) 1283 return ret; 1284 ret = wm8753_pcm_set_dai_fmt(codec, fmt); 1285 if (ret) 1286 return ret; 1287 1288 return 0; 1289 }; 1290 1291 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, 1292 unsigned int fmt) 1293 { 1294 struct snd_soc_codec *codec = codec_dai->codec; 1295 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1296 1297 wm8753->voice_fmt = fmt; 1298 1299 return wm8753_voice_write_dai_fmt(codec, fmt); 1300 }; 1301 1302 static int wm8753_mute(struct snd_soc_dai *dai, int mute) 1303 { 1304 struct snd_soc_codec *codec = dai->codec; 1305 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7; 1306 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1307 1308 /* the digital mute covers the HiFi and Voice DAC's on the WM8753. 1309 * make sure we check if they are not both active when we mute */ 1310 if (mute && wm8753->dai_func == 1) { 1311 if (!snd_soc_codec_is_active(codec)) 1312 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); 1313 } else { 1314 if (mute) 1315 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); 1316 else 1317 snd_soc_write(codec, WM8753_DAC, mute_reg); 1318 } 1319 1320 return 0; 1321 } 1322 1323 static void wm8753_charge_work(struct work_struct *work) 1324 { 1325 struct wm8753_priv *wm8753 = 1326 container_of(work, struct wm8753_priv, charge_work.work); 1327 1328 /* Set to 500k */ 1329 regmap_update_bits(wm8753->regmap, WM8753_PWR1, 0x0180, 0x0100); 1330 } 1331 1332 static int wm8753_set_bias_level(struct snd_soc_codec *codec, 1333 enum snd_soc_bias_level level) 1334 { 1335 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1336 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e; 1337 1338 switch (level) { 1339 case SND_SOC_BIAS_ON: 1340 /* set vmid to 50k and unmute dac */ 1341 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0); 1342 break; 1343 case SND_SOC_BIAS_PREPARE: 1344 /* Wait until fully charged */ 1345 flush_delayed_work(&wm8753->charge_work); 1346 break; 1347 case SND_SOC_BIAS_STANDBY: 1348 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 1349 /* set vmid to 5k for quick power up */ 1350 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1); 1351 schedule_delayed_work(&wm8753->charge_work, 1352 msecs_to_jiffies(caps_charge)); 1353 } else { 1354 /* mute dac and set vmid to 500k, enable VREF */ 1355 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141); 1356 } 1357 break; 1358 case SND_SOC_BIAS_OFF: 1359 cancel_delayed_work_sync(&wm8753->charge_work); 1360 snd_soc_write(codec, WM8753_PWR1, 0x0001); 1361 break; 1362 } 1363 return 0; 1364 } 1365 1366 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 1367 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 1368 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ 1369 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) 1370 1371 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 1372 SNDRV_PCM_FMTBIT_S24_LE) 1373 1374 /* 1375 * The WM8753 supports up to 4 different and mutually exclusive DAI 1376 * configurations. This gives 2 PCM's available for use, hifi and voice. 1377 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI 1378 * is connected between the wm8753 and a BT codec or GSM modem. 1379 * 1380 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI 1381 * 2. Voice over HIFI DAI - HIFI disabled 1382 * 3. Voice disabled - HIFI over HIFI 1383 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture 1384 */ 1385 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = { 1386 .hw_params = wm8753_i2s_hw_params, 1387 .digital_mute = wm8753_mute, 1388 .set_fmt = wm8753_hifi_set_dai_fmt, 1389 .set_clkdiv = wm8753_set_dai_clkdiv, 1390 .set_pll = wm8753_set_dai_pll, 1391 .set_sysclk = wm8753_set_dai_sysclk, 1392 }; 1393 1394 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = { 1395 .hw_params = wm8753_pcm_hw_params, 1396 .digital_mute = wm8753_mute, 1397 .set_fmt = wm8753_voice_set_dai_fmt, 1398 .set_clkdiv = wm8753_set_dai_clkdiv, 1399 .set_pll = wm8753_set_dai_pll, 1400 .set_sysclk = wm8753_set_dai_sysclk, 1401 }; 1402 1403 static struct snd_soc_dai_driver wm8753_dai[] = { 1404 /* DAI HiFi mode 1 */ 1405 { .name = "wm8753-hifi", 1406 .playback = { 1407 .stream_name = "HiFi Playback", 1408 .channels_min = 1, 1409 .channels_max = 2, 1410 .rates = WM8753_RATES, 1411 .formats = WM8753_FORMATS 1412 }, 1413 .capture = { /* dummy for fast DAI switching */ 1414 .stream_name = "Capture", 1415 .channels_min = 1, 1416 .channels_max = 2, 1417 .rates = WM8753_RATES, 1418 .formats = WM8753_FORMATS 1419 }, 1420 .ops = &wm8753_dai_ops_hifi_mode, 1421 }, 1422 /* DAI Voice mode 1 */ 1423 { .name = "wm8753-voice", 1424 .playback = { 1425 .stream_name = "Voice Playback", 1426 .channels_min = 1, 1427 .channels_max = 1, 1428 .rates = WM8753_RATES, 1429 .formats = WM8753_FORMATS, 1430 }, 1431 .capture = { 1432 .stream_name = "Capture", 1433 .channels_min = 1, 1434 .channels_max = 2, 1435 .rates = WM8753_RATES, 1436 .formats = WM8753_FORMATS, 1437 }, 1438 .ops = &wm8753_dai_ops_voice_mode, 1439 }, 1440 }; 1441 1442 static int wm8753_resume(struct snd_soc_codec *codec) 1443 { 1444 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1445 1446 regcache_sync(wm8753->regmap); 1447 1448 return 0; 1449 } 1450 1451 static int wm8753_probe(struct snd_soc_codec *codec) 1452 { 1453 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); 1454 int ret; 1455 1456 INIT_DELAYED_WORK(&wm8753->charge_work, wm8753_charge_work); 1457 1458 ret = wm8753_reset(codec); 1459 if (ret < 0) { 1460 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 1461 return ret; 1462 } 1463 1464 wm8753->dai_func = 0; 1465 1466 /* set the update bits */ 1467 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100); 1468 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100); 1469 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100); 1470 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100); 1471 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100); 1472 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100); 1473 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100); 1474 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100); 1475 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100); 1476 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100); 1477 1478 return 0; 1479 } 1480 1481 static const struct snd_soc_codec_driver soc_codec_dev_wm8753 = { 1482 .probe = wm8753_probe, 1483 .resume = wm8753_resume, 1484 .set_bias_level = wm8753_set_bias_level, 1485 .suspend_bias_off = true, 1486 1487 .component_driver = { 1488 .controls = wm8753_snd_controls, 1489 .num_controls = ARRAY_SIZE(wm8753_snd_controls), 1490 .dapm_widgets = wm8753_dapm_widgets, 1491 .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets), 1492 .dapm_routes = wm8753_dapm_routes, 1493 .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes), 1494 }, 1495 }; 1496 1497 static const struct of_device_id wm8753_of_match[] = { 1498 { .compatible = "wlf,wm8753", }, 1499 { } 1500 }; 1501 MODULE_DEVICE_TABLE(of, wm8753_of_match); 1502 1503 static const struct regmap_config wm8753_regmap = { 1504 .reg_bits = 7, 1505 .val_bits = 9, 1506 1507 .max_register = WM8753_ADCTL2, 1508 .volatile_reg = wm8753_volatile, 1509 1510 .cache_type = REGCACHE_RBTREE, 1511 .reg_defaults = wm8753_reg_defaults, 1512 .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults), 1513 }; 1514 1515 #if defined(CONFIG_SPI_MASTER) 1516 static int wm8753_spi_probe(struct spi_device *spi) 1517 { 1518 struct wm8753_priv *wm8753; 1519 int ret; 1520 1521 wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv), 1522 GFP_KERNEL); 1523 if (wm8753 == NULL) 1524 return -ENOMEM; 1525 1526 spi_set_drvdata(spi, wm8753); 1527 1528 wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap); 1529 if (IS_ERR(wm8753->regmap)) { 1530 ret = PTR_ERR(wm8753->regmap); 1531 dev_err(&spi->dev, "Failed to allocate register map: %d\n", 1532 ret); 1533 return ret; 1534 } 1535 1536 ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753, 1537 wm8753_dai, ARRAY_SIZE(wm8753_dai)); 1538 if (ret != 0) 1539 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); 1540 1541 return ret; 1542 } 1543 1544 static int wm8753_spi_remove(struct spi_device *spi) 1545 { 1546 snd_soc_unregister_codec(&spi->dev); 1547 return 0; 1548 } 1549 1550 static struct spi_driver wm8753_spi_driver = { 1551 .driver = { 1552 .name = "wm8753", 1553 .of_match_table = wm8753_of_match, 1554 }, 1555 .probe = wm8753_spi_probe, 1556 .remove = wm8753_spi_remove, 1557 }; 1558 #endif /* CONFIG_SPI_MASTER */ 1559 1560 #if IS_ENABLED(CONFIG_I2C) 1561 static int wm8753_i2c_probe(struct i2c_client *i2c, 1562 const struct i2c_device_id *id) 1563 { 1564 struct wm8753_priv *wm8753; 1565 int ret; 1566 1567 wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv), 1568 GFP_KERNEL); 1569 if (wm8753 == NULL) 1570 return -ENOMEM; 1571 1572 i2c_set_clientdata(i2c, wm8753); 1573 1574 wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap); 1575 if (IS_ERR(wm8753->regmap)) { 1576 ret = PTR_ERR(wm8753->regmap); 1577 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 1578 ret); 1579 return ret; 1580 } 1581 1582 ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753, 1583 wm8753_dai, ARRAY_SIZE(wm8753_dai)); 1584 if (ret != 0) 1585 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 1586 1587 return ret; 1588 } 1589 1590 static int wm8753_i2c_remove(struct i2c_client *client) 1591 { 1592 snd_soc_unregister_codec(&client->dev); 1593 return 0; 1594 } 1595 1596 static const struct i2c_device_id wm8753_i2c_id[] = { 1597 { "wm8753", 0 }, 1598 { } 1599 }; 1600 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id); 1601 1602 static struct i2c_driver wm8753_i2c_driver = { 1603 .driver = { 1604 .name = "wm8753", 1605 .of_match_table = wm8753_of_match, 1606 }, 1607 .probe = wm8753_i2c_probe, 1608 .remove = wm8753_i2c_remove, 1609 .id_table = wm8753_i2c_id, 1610 }; 1611 #endif 1612 1613 static int __init wm8753_modinit(void) 1614 { 1615 int ret = 0; 1616 #if IS_ENABLED(CONFIG_I2C) 1617 ret = i2c_add_driver(&wm8753_i2c_driver); 1618 if (ret != 0) { 1619 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n", 1620 ret); 1621 } 1622 #endif 1623 #if defined(CONFIG_SPI_MASTER) 1624 ret = spi_register_driver(&wm8753_spi_driver); 1625 if (ret != 0) { 1626 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n", 1627 ret); 1628 } 1629 #endif 1630 return ret; 1631 } 1632 module_init(wm8753_modinit); 1633 1634 static void __exit wm8753_exit(void) 1635 { 1636 #if IS_ENABLED(CONFIG_I2C) 1637 i2c_del_driver(&wm8753_i2c_driver); 1638 #endif 1639 #if defined(CONFIG_SPI_MASTER) 1640 spi_unregister_driver(&wm8753_spi_driver); 1641 #endif 1642 } 1643 module_exit(wm8753_exit); 1644 1645 MODULE_DESCRIPTION("ASoC WM8753 driver"); 1646 MODULE_AUTHOR("Liam Girdwood"); 1647 MODULE_LICENSE("GPL"); 1648