Version:  2.0.40 2.2.26 2.4.37 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Linux/sound/soc/codecs/wm8753.c

  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 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         .controls = wm8753_snd_controls,
1488         .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1489         .dapm_widgets = wm8753_dapm_widgets,
1490         .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1491         .dapm_routes = wm8753_dapm_routes,
1492         .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1493 };
1494 
1495 static const struct of_device_id wm8753_of_match[] = {
1496         { .compatible = "wlf,wm8753", },
1497         { }
1498 };
1499 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1500 
1501 static const struct regmap_config wm8753_regmap = {
1502         .reg_bits = 7,
1503         .val_bits = 9,
1504 
1505         .max_register = WM8753_ADCTL2,
1506         .volatile_reg = wm8753_volatile,
1507 
1508         .cache_type = REGCACHE_RBTREE,
1509         .reg_defaults = wm8753_reg_defaults,
1510         .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1511 };
1512 
1513 #if defined(CONFIG_SPI_MASTER)
1514 static int wm8753_spi_probe(struct spi_device *spi)
1515 {
1516         struct wm8753_priv *wm8753;
1517         int ret;
1518 
1519         wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
1520                               GFP_KERNEL);
1521         if (wm8753 == NULL)
1522                 return -ENOMEM;
1523 
1524         spi_set_drvdata(spi, wm8753);
1525 
1526         wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap);
1527         if (IS_ERR(wm8753->regmap)) {
1528                 ret = PTR_ERR(wm8753->regmap);
1529                 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1530                         ret);
1531                 return ret;
1532         }
1533 
1534         ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753,
1535                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1536         if (ret != 0)
1537                 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1538 
1539         return ret;
1540 }
1541 
1542 static int wm8753_spi_remove(struct spi_device *spi)
1543 {
1544         snd_soc_unregister_codec(&spi->dev);
1545         return 0;
1546 }
1547 
1548 static struct spi_driver wm8753_spi_driver = {
1549         .driver = {
1550                 .name   = "wm8753",
1551                 .of_match_table = wm8753_of_match,
1552         },
1553         .probe          = wm8753_spi_probe,
1554         .remove         = wm8753_spi_remove,
1555 };
1556 #endif /* CONFIG_SPI_MASTER */
1557 
1558 #if IS_ENABLED(CONFIG_I2C)
1559 static int wm8753_i2c_probe(struct i2c_client *i2c,
1560                             const struct i2c_device_id *id)
1561 {
1562         struct wm8753_priv *wm8753;
1563         int ret;
1564 
1565         wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
1566                               GFP_KERNEL);
1567         if (wm8753 == NULL)
1568                 return -ENOMEM;
1569 
1570         i2c_set_clientdata(i2c, wm8753);
1571 
1572         wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap);
1573         if (IS_ERR(wm8753->regmap)) {
1574                 ret = PTR_ERR(wm8753->regmap);
1575                 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1576                         ret);
1577                 return ret;
1578         }
1579 
1580         ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753,
1581                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1582         if (ret != 0)
1583                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1584 
1585         return ret;
1586 }
1587 
1588 static int wm8753_i2c_remove(struct i2c_client *client)
1589 {
1590         snd_soc_unregister_codec(&client->dev);
1591         return 0;
1592 }
1593 
1594 static const struct i2c_device_id wm8753_i2c_id[] = {
1595         { "wm8753", 0 },
1596         { }
1597 };
1598 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1599 
1600 static struct i2c_driver wm8753_i2c_driver = {
1601         .driver = {
1602                 .name = "wm8753",
1603                 .of_match_table = wm8753_of_match,
1604         },
1605         .probe =    wm8753_i2c_probe,
1606         .remove =   wm8753_i2c_remove,
1607         .id_table = wm8753_i2c_id,
1608 };
1609 #endif
1610 
1611 static int __init wm8753_modinit(void)
1612 {
1613         int ret = 0;
1614 #if IS_ENABLED(CONFIG_I2C)
1615         ret = i2c_add_driver(&wm8753_i2c_driver);
1616         if (ret != 0) {
1617                 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1618                        ret);
1619         }
1620 #endif
1621 #if defined(CONFIG_SPI_MASTER)
1622         ret = spi_register_driver(&wm8753_spi_driver);
1623         if (ret != 0) {
1624                 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1625                        ret);
1626         }
1627 #endif
1628         return ret;
1629 }
1630 module_init(wm8753_modinit);
1631 
1632 static void __exit wm8753_exit(void)
1633 {
1634 #if IS_ENABLED(CONFIG_I2C)
1635         i2c_del_driver(&wm8753_i2c_driver);
1636 #endif
1637 #if defined(CONFIG_SPI_MASTER)
1638         spi_unregister_driver(&wm8753_spi_driver);
1639 #endif
1640 }
1641 module_exit(wm8753_exit);
1642 
1643 MODULE_DESCRIPTION("ASoC WM8753 driver");
1644 MODULE_AUTHOR("Liam Girdwood");
1645 MODULE_LICENSE("GPL");
1646 

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