Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 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

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

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us