Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 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

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 static bool wm8753_writeable(struct device *dev, unsigned int reg)
142 {
143         return reg <= WM8753_ADCTL2;
144 }
145 
146 /* codec private data */
147 struct wm8753_priv {
148         struct regmap *regmap;
149         unsigned int sysclk;
150         unsigned int pcmclk;
151 
152         unsigned int voice_fmt;
153         unsigned int hifi_fmt;
154 
155         int dai_func;
156         struct delayed_work charge_work;
157 };
158 
159 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
160 
161 /*
162  * WM8753 Controls
163  */
164 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
165 static const char *wm8753_base_filter[] =
166         {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
167         "100Hz @ 8kHz", "200Hz @ 8kHz"};
168 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
169 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
170 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
171 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
172 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
173 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
174 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
175 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
176 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
177 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
178         "Line 1", "Line 2"};
179 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
180 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
181 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
182 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
183 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
184         "Right PGA"};
185 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
186         "Left + Right"};
187 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
188 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
189 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
190 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
191 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
192         "Analogue Mix Right", "Digital Mono Mix"};
193 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
194         "82Hz @ 8kHz", "170Hz @ 8kHz"};
195 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
196 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
197 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
198 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
199         "Channel Swap"};
200 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
201 
202 static const struct soc_enum wm8753_enum[] = {
203 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
204 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
205 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
206 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
207 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
208 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
209 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
210 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
211 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
212 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
213 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
214 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
215 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
216 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
217 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
218 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
219 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
220 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
221 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
222 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
223 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
224 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
225 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
226 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
227 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
228 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
229 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
230 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
231 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
232 };
233 
234 
235 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
236         struct snd_ctl_elem_value *ucontrol)
237 {
238         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
239         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
240 
241         ucontrol->value.integer.value[0] = wm8753->dai_func;
242         return 0;
243 }
244 
245 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
246         struct snd_ctl_elem_value *ucontrol)
247 {
248         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
249         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
250         u16 ioctl;
251 
252         if (wm8753->dai_func == ucontrol->value.integer.value[0])
253                 return 0;
254 
255         if (snd_soc_codec_is_active(codec))
256                 return -EBUSY;
257 
258         ioctl = snd_soc_read(codec, WM8753_IOCTL);
259 
260         wm8753->dai_func = ucontrol->value.integer.value[0];
261 
262         if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
263                 return 1;
264 
265         ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
266         snd_soc_write(codec, WM8753_IOCTL, ioctl);
267 
268 
269         wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
270         wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
271 
272         return 1;
273 }
274 
275 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
276 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
277 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
278 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
279 static const unsigned int out_tlv[] = {
280         TLV_DB_RANGE_HEAD(2),
281         /* 0000000 - 0101111 = "Analogue mute" */
282         0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
283         48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
284 };
285 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
286 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
287 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
288 
289 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
290 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
291 
292 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
293                  adc_tlv),
294 
295 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
296                  0, 127, 0, out_tlv),
297 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
298                  127, 0, out_tlv),
299 
300 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
301 
302 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
303                  1, mix_tlv),
304 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
305                  7, 1, mix_tlv),
306 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
307                  1, voice_mix_tlv),
308 
309 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
310              1, 0),
311 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
312              1, 0),
313 
314 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
315 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
316                mix_tlv),
317 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
318                voice_mix_tlv),
319 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
320 
321 SOC_ENUM("Bass Boost", wm8753_enum[0]),
322 SOC_ENUM("Bass Filter", wm8753_enum[1]),
323 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
324 
325 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
326 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
327 
328 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
329                rec_mix_tlv),
330 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
331                rec_mix_tlv),
332 
333 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
334                  pga_tlv),
335 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
336 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
337 
338 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
339 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
340 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
341 
342 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
343 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
344 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
345 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
346 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
347 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
348 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
349 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
350 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
351 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
352 
353 SOC_ENUM("3D Function", wm8753_enum[5]),
354 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
355 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
356 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
357 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
358 
359 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
360 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
361 
362 SOC_ENUM("De-emphasis", wm8753_enum[8]),
363 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
364 SOC_ENUM("Playback Phase", wm8753_enum[10]),
365 
366 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
367 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
368 
369 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
370 
371 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
372 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
373 };
374 
375 /*
376  * _DAPM_ Controls
377  */
378 
379 /* Left Mixer */
380 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
381 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
382 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
383 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
384 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
385 };
386 
387 /* Right mixer */
388 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
389 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
390 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
391 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
392 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
393 };
394 
395 /* Mono mixer */
396 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
397 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
398 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
399 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
400 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
401 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
402 };
403 
404 /* Mono 2 Mux */
405 static const struct snd_kcontrol_new wm8753_mono2_controls =
406 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
407 
408 /* Out 3 Mux */
409 static const struct snd_kcontrol_new wm8753_out3_controls =
410 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
411 
412 /* Out 4 Mux */
413 static const struct snd_kcontrol_new wm8753_out4_controls =
414 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
415 
416 /* ADC Mono Mix */
417 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
418 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
419 
420 /* Record mixer */
421 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
422 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
423 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
424 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
425 };
426 
427 /* Left ADC mux */
428 static const struct snd_kcontrol_new wm8753_adc_left_controls =
429 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
430 
431 /* Right ADC mux */
432 static const struct snd_kcontrol_new wm8753_adc_right_controls =
433 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
434 
435 /* MIC mux */
436 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
437 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
438 
439 /* ALC mixer */
440 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
441 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
442 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
443 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
444 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
445 };
446 
447 /* Left Line mux */
448 static const struct snd_kcontrol_new wm8753_line_left_controls =
449 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
450 
451 /* Right Line mux */
452 static const struct snd_kcontrol_new wm8753_line_right_controls =
453 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
454 
455 /* Mono Line mux */
456 static const struct snd_kcontrol_new wm8753_line_mono_controls =
457 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
458 
459 /* Line mux and mixer */
460 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
461 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
462 
463 /* Rx mux and mixer */
464 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
465 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
466 
467 /* Mic Selector Mux */
468 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
469 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
470 
471 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
472 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
473 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
474         &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
475 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
476 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
477 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
478 SND_SOC_DAPM_OUTPUT("LOUT1"),
479 SND_SOC_DAPM_OUTPUT("LOUT2"),
480 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
481         &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
482 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
483 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
484 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
485 SND_SOC_DAPM_OUTPUT("ROUT1"),
486 SND_SOC_DAPM_OUTPUT("ROUT2"),
487 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
488         &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
489 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
490 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
491 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
492 SND_SOC_DAPM_OUTPUT("MONO1"),
493 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
494 SND_SOC_DAPM_OUTPUT("MONO2"),
495 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
496 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
497 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
498 SND_SOC_DAPM_OUTPUT("OUT3"),
499 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
500 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
501 SND_SOC_DAPM_OUTPUT("OUT4"),
502 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
503         &wm8753_record_mixer_controls[0],
504         ARRAY_SIZE(wm8753_record_mixer_controls)),
505 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
506 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
507 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
508         &wm8753_adc_mono_controls),
509 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
510         &wm8753_adc_mono_controls),
511 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
512         &wm8753_adc_left_controls),
513 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
514         &wm8753_adc_right_controls),
515 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
516         &wm8753_mic_mux_controls),
517 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
518 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
519 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
520         &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
521 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
522         &wm8753_line_left_controls),
523 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
524         &wm8753_line_right_controls),
525 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
526         &wm8753_line_mono_controls),
527 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
528         &wm8753_line_mux_mix_controls),
529 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
530         &wm8753_rx_mux_mix_controls),
531 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
532 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
533 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
534         &wm8753_mic_sel_mux_controls),
535 SND_SOC_DAPM_INPUT("LINE1"),
536 SND_SOC_DAPM_INPUT("LINE2"),
537 SND_SOC_DAPM_INPUT("RXP"),
538 SND_SOC_DAPM_INPUT("RXN"),
539 SND_SOC_DAPM_INPUT("ACIN"),
540 SND_SOC_DAPM_OUTPUT("ACOP"),
541 SND_SOC_DAPM_INPUT("MIC1N"),
542 SND_SOC_DAPM_INPUT("MIC1"),
543 SND_SOC_DAPM_INPUT("MIC2N"),
544 SND_SOC_DAPM_INPUT("MIC2"),
545 SND_SOC_DAPM_VMID("VREF"),
546 };
547 
548 static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
549         /* left mixer */
550         {"Left Mixer", "Left Playback Switch", "Left DAC"},
551         {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
552         {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
553         {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
554 
555         /* right mixer */
556         {"Right Mixer", "Right Playback Switch", "Right DAC"},
557         {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
558         {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
559         {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
560 
561         /* mono mixer */
562         {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
563         {"Mono Mixer", "Left Playback Switch", "Left DAC"},
564         {"Mono Mixer", "Right Playback Switch", "Right DAC"},
565         {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
566         {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
567 
568         /* left out */
569         {"Left Out 1", NULL, "Left Mixer"},
570         {"Left Out 2", NULL, "Left Mixer"},
571         {"LOUT1", NULL, "Left Out 1"},
572         {"LOUT2", NULL, "Left Out 2"},
573 
574         /* right out */
575         {"Right Out 1", NULL, "Right Mixer"},
576         {"Right Out 2", NULL, "Right Mixer"},
577         {"ROUT1", NULL, "Right Out 1"},
578         {"ROUT2", NULL, "Right Out 2"},
579 
580         /* mono 1 out */
581         {"Mono Out 1", NULL, "Mono Mixer"},
582         {"MONO1", NULL, "Mono Out 1"},
583 
584         /* mono 2 out */
585         {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
586         {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
587         {"Mono 2 Mux", "Left", "Left Mixer"},
588         {"Mono 2 Mux", "Right", "Right Mixer"},
589         {"Mono Out 2", NULL, "Mono 2 Mux"},
590         {"MONO2", NULL, "Mono Out 2"},
591 
592         /* out 3 */
593         {"Out3 Left + Right", NULL, "Left Mixer"},
594         {"Out3 Left + Right", NULL, "Right Mixer"},
595         {"Out3 Mux", "VREF", "VREF"},
596         {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
597         {"Out3 Mux", "ROUT2", "ROUT2"},
598         {"Out 3", NULL, "Out3 Mux"},
599         {"OUT3", NULL, "Out 3"},
600 
601         /* out 4 */
602         {"Out4 Mux", "VREF", "VREF"},
603         {"Out4 Mux", "Capture ST", "Playback Mixer"},
604         {"Out4 Mux", "LOUT2", "LOUT2"},
605         {"Out 4", NULL, "Out4 Mux"},
606         {"OUT4", NULL, "Out 4"},
607 
608         /* record mixer  */
609         {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
610         {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
611         {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
612 
613         /* Mic/SideTone Mux */
614         {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
615         {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
616         {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
617         {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
618 
619         /* Capture Left Mux */
620         {"Capture Left Mux", "PGA", "Left Capture Volume"},
621         {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
622         {"Capture Left Mux", "Line", "LINE1"},
623 
624         /* Capture Right Mux */
625         {"Capture Right Mux", "PGA", "Right Capture Volume"},
626         {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
627         {"Capture Right Mux", "Sidetone", "Playback Mixer"},
628 
629         /* Mono Capture mixer-mux */
630         {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
631         {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
632         {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
633         {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
634         {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
635         {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
636         {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
637         {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
638         {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
639         {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
640 
641         /* ADC */
642         {"Left ADC", NULL, "Capture Left Mixer"},
643         {"Right ADC", NULL, "Capture Right Mixer"},
644 
645         /* Left Capture Volume */
646         {"Left Capture Volume", NULL, "ACIN"},
647 
648         /* Right Capture Volume */
649         {"Right Capture Volume", NULL, "Mic 2 Volume"},
650 
651         /* ALC Mixer */
652         {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
653         {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
654         {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
655         {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
656 
657         /* Line Left Mux */
658         {"Line Left Mux", "Line 1", "LINE1"},
659         {"Line Left Mux", "Rx Mix", "Rx Mixer"},
660 
661         /* Line Right Mux */
662         {"Line Right Mux", "Line 2", "LINE2"},
663         {"Line Right Mux", "Rx Mix", "Rx Mixer"},
664 
665         /* Line Mono Mux */
666         {"Line Mono Mux", "Line Mix", "Line Mixer"},
667         {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
668 
669         /* Line Mixer/Mux */
670         {"Line Mixer", "Line 1 + 2", "LINE1"},
671         {"Line Mixer", "Line 1 - 2", "LINE1"},
672         {"Line Mixer", "Line 1 + 2", "LINE2"},
673         {"Line Mixer", "Line 1 - 2", "LINE2"},
674         {"Line Mixer", "Line 1", "LINE1"},
675         {"Line Mixer", "Line 2", "LINE2"},
676 
677         /* Rx Mixer/Mux */
678         {"Rx Mixer", "RXP - RXN", "RXP"},
679         {"Rx Mixer", "RXP + RXN", "RXP"},
680         {"Rx Mixer", "RXP - RXN", "RXN"},
681         {"Rx Mixer", "RXP + RXN", "RXN"},
682         {"Rx Mixer", "RXP", "RXP"},
683         {"Rx Mixer", "RXN", "RXN"},
684 
685         /* Mic 1 Volume */
686         {"Mic 1 Volume", NULL, "MIC1N"},
687         {"Mic 1 Volume", NULL, "Mic Selection Mux"},
688 
689         /* Mic 2 Volume */
690         {"Mic 2 Volume", NULL, "MIC2N"},
691         {"Mic 2 Volume", NULL, "MIC2"},
692 
693         /* Mic Selector Mux */
694         {"Mic Selection Mux", "Mic 1", "MIC1"},
695         {"Mic Selection Mux", "Mic 2", "MIC2N"},
696         {"Mic Selection Mux", "Mic 3", "MIC2"},
697 
698         /* ACOP */
699         {"ACOP", NULL, "ALC Mixer"},
700 };
701 
702 /* PLL divisors */
703 struct _pll_div {
704         u32 div2:1;
705         u32 n:4;
706         u32 k:24;
707 };
708 
709 /* The size in bits of the pll divide multiplied by 10
710  * to allow rounding later */
711 #define FIXED_PLL_SIZE ((1 << 22) * 10)
712 
713 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
714         unsigned int source)
715 {
716         u64 Kpart;
717         unsigned int K, Ndiv, Nmod;
718 
719         Ndiv = target / source;
720         if (Ndiv < 6) {
721                 source >>= 1;
722                 pll_div->div2 = 1;
723                 Ndiv = target / source;
724         } else
725                 pll_div->div2 = 0;
726 
727         if ((Ndiv < 6) || (Ndiv > 12))
728                 printk(KERN_WARNING
729                         "wm8753: unsupported N = %u\n", Ndiv);
730 
731         pll_div->n = Ndiv;
732         Nmod = target % source;
733         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
734 
735         do_div(Kpart, source);
736 
737         K = Kpart & 0xFFFFFFFF;
738 
739         /* Check if we need to round */
740         if ((K % 10) >= 5)
741                 K += 5;
742 
743         /* Move down to proper range now rounding is done */
744         K /= 10;
745 
746         pll_div->k = K;
747 }
748 
749 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
750                 int source, unsigned int freq_in, unsigned int freq_out)
751 {
752         u16 reg, enable;
753         int offset;
754         struct snd_soc_codec *codec = codec_dai->codec;
755 
756         if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
757                 return -ENODEV;
758 
759         if (pll_id == WM8753_PLL1) {
760                 offset = 0;
761                 enable = 0x10;
762                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
763         } else {
764                 offset = 4;
765                 enable = 0x8;
766                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
767         }
768 
769         if (!freq_in || !freq_out) {
770                 /* disable PLL  */
771                 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
772                 snd_soc_write(codec, WM8753_CLOCK, reg);
773                 return 0;
774         } else {
775                 u16 value = 0;
776                 struct _pll_div pll_div;
777 
778                 pll_factors(&pll_div, freq_out * 8, freq_in);
779 
780                 /* set up N and K PLL divisor ratios */
781                 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
782                 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
783                 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
784 
785                 /* bits 8:0 = PLL_K[17:9] */
786                 value = (pll_div.k & 0x03fe00) >> 9;
787                 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
788 
789                 /* bits 8:0 = PLL_K[8:0] */
790                 value = pll_div.k & 0x0001ff;
791                 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
792 
793                 /* set PLL as input and enable */
794                 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
795                         (pll_div.div2 << 3));
796                 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
797         }
798         return 0;
799 }
800 
801 struct _coeff_div {
802         u32 mclk;
803         u32 rate;
804         u8 sr:5;
805         u8 usb:1;
806 };
807 
808 /* codec hifi mclk (after PLL) clock divider coefficients */
809 static const struct _coeff_div coeff_div[] = {
810         /* 8k */
811         {12288000, 8000, 0x6, 0x0},
812         {11289600, 8000, 0x16, 0x0},
813         {18432000, 8000, 0x7, 0x0},
814         {16934400, 8000, 0x17, 0x0},
815         {12000000, 8000, 0x6, 0x1},
816 
817         /* 11.025k */
818         {11289600, 11025, 0x18, 0x0},
819         {16934400, 11025, 0x19, 0x0},
820         {12000000, 11025, 0x19, 0x1},
821 
822         /* 16k */
823         {12288000, 16000, 0xa, 0x0},
824         {18432000, 16000, 0xb, 0x0},
825         {12000000, 16000, 0xa, 0x1},
826 
827         /* 22.05k */
828         {11289600, 22050, 0x1a, 0x0},
829         {16934400, 22050, 0x1b, 0x0},
830         {12000000, 22050, 0x1b, 0x1},
831 
832         /* 32k */
833         {12288000, 32000, 0xc, 0x0},
834         {18432000, 32000, 0xd, 0x0},
835         {12000000, 32000, 0xa, 0x1},
836 
837         /* 44.1k */
838         {11289600, 44100, 0x10, 0x0},
839         {16934400, 44100, 0x11, 0x0},
840         {12000000, 44100, 0x11, 0x1},
841 
842         /* 48k */
843         {12288000, 48000, 0x0, 0x0},
844         {18432000, 48000, 0x1, 0x0},
845         {12000000, 48000, 0x0, 0x1},
846 
847         /* 88.2k */
848         {11289600, 88200, 0x1e, 0x0},
849         {16934400, 88200, 0x1f, 0x0},
850         {12000000, 88200, 0x1f, 0x1},
851 
852         /* 96k */
853         {12288000, 96000, 0xe, 0x0},
854         {18432000, 96000, 0xf, 0x0},
855         {12000000, 96000, 0xe, 0x1},
856 };
857 
858 static int get_coeff(int mclk, int rate)
859 {
860         int i;
861 
862         for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
863                 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
864                         return i;
865         }
866         return -EINVAL;
867 }
868 
869 /*
870  * Clock after PLL and dividers
871  */
872 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
873                 int clk_id, unsigned int freq, int dir)
874 {
875         struct snd_soc_codec *codec = codec_dai->codec;
876         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
877 
878         switch (freq) {
879         case 11289600:
880         case 12000000:
881         case 12288000:
882         case 16934400:
883         case 18432000:
884                 if (clk_id == WM8753_MCLK) {
885                         wm8753->sysclk = freq;
886                         return 0;
887                 } else if (clk_id == WM8753_PCMCLK) {
888                         wm8753->pcmclk = freq;
889                         return 0;
890                 }
891                 break;
892         }
893         return -EINVAL;
894 }
895 
896 /*
897  * Set's ADC and Voice DAC format.
898  */
899 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
900                 unsigned int fmt)
901 {
902         u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
903 
904         /* interface format */
905         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
906         case SND_SOC_DAIFMT_I2S:
907                 voice |= 0x0002;
908                 break;
909         case SND_SOC_DAIFMT_RIGHT_J:
910                 break;
911         case SND_SOC_DAIFMT_LEFT_J:
912                 voice |= 0x0001;
913                 break;
914         case SND_SOC_DAIFMT_DSP_A:
915                 voice |= 0x0003;
916                 break;
917         case SND_SOC_DAIFMT_DSP_B:
918                 voice |= 0x0013;
919                 break;
920         default:
921                 return -EINVAL;
922         }
923 
924         snd_soc_write(codec, WM8753_PCM, voice);
925         return 0;
926 }
927 
928 /*
929  * Set PCM DAI bit size and sample rate.
930  */
931 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
932                                 struct snd_pcm_hw_params *params,
933                                 struct snd_soc_dai *dai)
934 {
935         struct snd_soc_codec *codec = dai->codec;
936         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
937         u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
938         u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
939 
940         /* bit size */
941         switch (params_width(params)) {
942         case 16:
943                 break;
944         case 20:
945                 voice |= 0x0004;
946                 break;
947         case 24:
948                 voice |= 0x0008;
949                 break;
950         case 32:
951                 voice |= 0x000c;
952                 break;
953         }
954 
955         /* sample rate */
956         if (params_rate(params) * 384 == wm8753->pcmclk)
957                 srate |= 0x80;
958         snd_soc_write(codec, WM8753_SRATE1, srate);
959 
960         snd_soc_write(codec, WM8753_PCM, voice);
961         return 0;
962 }
963 
964 /*
965  * Set's PCM dai fmt and BCLK.
966  */
967 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
968                 unsigned int fmt)
969 {
970         u16 voice, ioctl;
971 
972         voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
973         ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
974 
975         /* set master/slave audio interface */
976         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
977         case SND_SOC_DAIFMT_CBS_CFS:
978                 break;
979         case SND_SOC_DAIFMT_CBM_CFM:
980                 ioctl |= 0x2;
981         case SND_SOC_DAIFMT_CBM_CFS:
982                 voice |= 0x0040;
983                 break;
984         default:
985                 return -EINVAL;
986         }
987 
988         /* clock inversion */
989         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
990         case SND_SOC_DAIFMT_DSP_A:
991         case SND_SOC_DAIFMT_DSP_B:
992                 /* frame inversion not valid for DSP modes */
993                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
994                 case SND_SOC_DAIFMT_NB_NF:
995                         break;
996                 case SND_SOC_DAIFMT_IB_NF:
997                         voice |= 0x0080;
998                         break;
999                 default:
1000                         return -EINVAL;
1001                 }
1002                 break;
1003         case SND_SOC_DAIFMT_I2S:
1004         case SND_SOC_DAIFMT_RIGHT_J:
1005         case SND_SOC_DAIFMT_LEFT_J:
1006                 voice &= ~0x0010;
1007                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1008                 case SND_SOC_DAIFMT_NB_NF:
1009                         break;
1010                 case SND_SOC_DAIFMT_IB_IF:
1011                         voice |= 0x0090;
1012                         break;
1013                 case SND_SOC_DAIFMT_IB_NF:
1014                         voice |= 0x0080;
1015                         break;
1016                 case SND_SOC_DAIFMT_NB_IF:
1017                         voice |= 0x0010;
1018                         break;
1019                 default:
1020                         return -EINVAL;
1021                 }
1022                 break;
1023         default:
1024                 return -EINVAL;
1025         }
1026 
1027         snd_soc_write(codec, WM8753_PCM, voice);
1028         snd_soc_write(codec, WM8753_IOCTL, ioctl);
1029         return 0;
1030 }
1031 
1032 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1033                 int div_id, int div)
1034 {
1035         struct snd_soc_codec *codec = codec_dai->codec;
1036         u16 reg;
1037 
1038         switch (div_id) {
1039         case WM8753_PCMDIV:
1040                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
1041                 snd_soc_write(codec, WM8753_CLOCK, reg | div);
1042                 break;
1043         case WM8753_BCLKDIV:
1044                 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
1045                 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1046                 break;
1047         case WM8753_VXCLKDIV:
1048                 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
1049                 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1050                 break;
1051         default:
1052                 return -EINVAL;
1053         }
1054         return 0;
1055 }
1056 
1057 /*
1058  * Set's HiFi DAC format.
1059  */
1060 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1061                 unsigned int fmt)
1062 {
1063         u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1064 
1065         /* interface format */
1066         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1067         case SND_SOC_DAIFMT_I2S:
1068                 hifi |= 0x0002;
1069                 break;
1070         case SND_SOC_DAIFMT_RIGHT_J:
1071                 break;
1072         case SND_SOC_DAIFMT_LEFT_J:
1073                 hifi |= 0x0001;
1074                 break;
1075         case SND_SOC_DAIFMT_DSP_A:
1076                 hifi |= 0x0003;
1077                 break;
1078         case SND_SOC_DAIFMT_DSP_B:
1079                 hifi |= 0x0013;
1080                 break;
1081         default:
1082                 return -EINVAL;
1083         }
1084 
1085         snd_soc_write(codec, WM8753_HIFI, hifi);
1086         return 0;
1087 }
1088 
1089 /*
1090  * Set's I2S DAI format.
1091  */
1092 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1093                 unsigned int fmt)
1094 {
1095         u16 ioctl, hifi;
1096 
1097         hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1098         ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1099 
1100         /* set master/slave audio interface */
1101         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1102         case SND_SOC_DAIFMT_CBS_CFS:
1103                 break;
1104         case SND_SOC_DAIFMT_CBM_CFM:
1105                 ioctl |= 0x1;
1106         case SND_SOC_DAIFMT_CBM_CFS:
1107                 hifi |= 0x0040;
1108                 break;
1109         default:
1110                 return -EINVAL;
1111         }
1112 
1113         /* clock inversion */
1114         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1115         case SND_SOC_DAIFMT_DSP_A:
1116         case SND_SOC_DAIFMT_DSP_B:
1117                 /* frame inversion not valid for DSP modes */
1118                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1119                 case SND_SOC_DAIFMT_NB_NF:
1120                         break;
1121                 case SND_SOC_DAIFMT_IB_NF:
1122                         hifi |= 0x0080;
1123                         break;
1124                 default:
1125                         return -EINVAL;
1126                 }
1127                 break;
1128         case SND_SOC_DAIFMT_I2S:
1129         case SND_SOC_DAIFMT_RIGHT_J:
1130         case SND_SOC_DAIFMT_LEFT_J:
1131                 hifi &= ~0x0010;
1132                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1133                 case SND_SOC_DAIFMT_NB_NF:
1134                         break;
1135                 case SND_SOC_DAIFMT_IB_IF:
1136                         hifi |= 0x0090;
1137                         break;
1138                 case SND_SOC_DAIFMT_IB_NF:
1139                         hifi |= 0x0080;
1140                         break;
1141                 case SND_SOC_DAIFMT_NB_IF:
1142                         hifi |= 0x0010;
1143                         break;
1144                 default:
1145                         return -EINVAL;
1146                 }
1147                 break;
1148         default:
1149                 return -EINVAL;
1150         }
1151 
1152         snd_soc_write(codec, WM8753_HIFI, hifi);
1153         snd_soc_write(codec, WM8753_IOCTL, ioctl);
1154         return 0;
1155 }
1156 
1157 /*
1158  * Set PCM DAI bit size and sample rate.
1159  */
1160 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1161                                 struct snd_pcm_hw_params *params,
1162                                 struct snd_soc_dai *dai)
1163 {
1164         struct snd_soc_codec *codec = dai->codec;
1165         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1166         u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1167         u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1168         int coeff;
1169 
1170         /* is digital filter coefficient valid ? */
1171         coeff = get_coeff(wm8753->sysclk, params_rate(params));
1172         if (coeff < 0) {
1173                 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1174                 return coeff;
1175         }
1176         snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1177                 coeff_div[coeff].usb);
1178 
1179         /* bit size */
1180         switch (params_width(params)) {
1181         case 16:
1182                 break;
1183         case 20:
1184                 hifi |= 0x0004;
1185                 break;
1186         case 24:
1187                 hifi |= 0x0008;
1188                 break;
1189         case 32:
1190                 hifi |= 0x000c;
1191                 break;
1192         }
1193 
1194         snd_soc_write(codec, WM8753_HIFI, hifi);
1195         return 0;
1196 }
1197 
1198 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1199                 unsigned int fmt)
1200 {
1201         u16 clock;
1202 
1203         /* set clk source as pcmclk */
1204         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1205         snd_soc_write(codec, WM8753_CLOCK, clock);
1206 
1207         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1208 }
1209 
1210 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1211                 unsigned int fmt)
1212 {
1213         return wm8753_hdac_set_dai_fmt(codec, fmt);
1214 }
1215 
1216 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1217                 unsigned int fmt)
1218 {
1219         u16 clock;
1220 
1221         /* set clk source as pcmclk */
1222         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1223         snd_soc_write(codec, WM8753_CLOCK, clock);
1224 
1225         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1226 }
1227 
1228 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1229                 unsigned int fmt)
1230 {
1231         u16 clock;
1232 
1233         /* set clk source as mclk */
1234         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1235         snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1236 
1237         if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1238                 return -EINVAL;
1239         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1240 }
1241 
1242 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1243                 unsigned int fmt)
1244 {
1245         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1246         int ret = 0;
1247 
1248         switch (wm8753->dai_func) {
1249         case 0:
1250                 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1251                 break;
1252         case 1:
1253                 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1254                 break;
1255         case 2:
1256         case 3:
1257                 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1258                 break;
1259         default:
1260                  break;
1261         }
1262         if (ret)
1263                 return ret;
1264 
1265         return wm8753_i2s_set_dai_fmt(codec, fmt);
1266 }
1267 
1268 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1269                 unsigned int fmt)
1270 {
1271         struct snd_soc_codec *codec = codec_dai->codec;
1272         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1273 
1274         wm8753->hifi_fmt = fmt;
1275 
1276         return wm8753_hifi_write_dai_fmt(codec, fmt);
1277 };
1278 
1279 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1280                 unsigned int fmt)
1281 {
1282         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1283         int ret = 0;
1284 
1285         if (wm8753->dai_func != 0)
1286                 return 0;
1287 
1288         ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1289         if (ret)
1290                 return ret;
1291         ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1292         if (ret)
1293                 return ret;
1294 
1295         return 0;
1296 };
1297 
1298 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1299                 unsigned int fmt)
1300 {
1301         struct snd_soc_codec *codec = codec_dai->codec;
1302         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1303 
1304         wm8753->voice_fmt = fmt;
1305 
1306         return wm8753_voice_write_dai_fmt(codec, fmt);
1307 };
1308 
1309 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1310 {
1311         struct snd_soc_codec *codec = dai->codec;
1312         u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1313         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1314 
1315         /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1316          * make sure we check if they are not both active when we mute */
1317         if (mute && wm8753->dai_func == 1) {
1318                 if (!snd_soc_codec_is_active(codec))
1319                         snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1320         } else {
1321                 if (mute)
1322                         snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1323                 else
1324                         snd_soc_write(codec, WM8753_DAC, mute_reg);
1325         }
1326 
1327         return 0;
1328 }
1329 
1330 static void wm8753_charge_work(struct work_struct *work)
1331 {
1332         struct wm8753_priv *wm8753 =
1333                 container_of(work, struct wm8753_priv, charge_work.work);
1334 
1335         /* Set to 500k */
1336         regmap_update_bits(wm8753->regmap, WM8753_PWR1, 0x0180, 0x0100);
1337 }
1338 
1339 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1340                                  enum snd_soc_bias_level level)
1341 {
1342         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1343         u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1344 
1345         switch (level) {
1346         case SND_SOC_BIAS_ON:
1347                 /* set vmid to 50k and unmute dac */
1348                 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1349                 break;
1350         case SND_SOC_BIAS_PREPARE:
1351                 /* Wait until fully charged */
1352                 flush_delayed_work(&wm8753->charge_work);
1353                 break;
1354         case SND_SOC_BIAS_STANDBY:
1355                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1356                         /* set vmid to 5k for quick power up */
1357                         snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1358                         schedule_delayed_work(&wm8753->charge_work,
1359                                 msecs_to_jiffies(caps_charge));
1360                 } else {
1361                         /* mute dac and set vmid to 500k, enable VREF */
1362                         snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1363                 }
1364                 break;
1365         case SND_SOC_BIAS_OFF:
1366                 cancel_delayed_work_sync(&wm8753->charge_work);
1367                 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1368                 break;
1369         }
1370         codec->dapm.bias_level = level;
1371         return 0;
1372 }
1373 
1374 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1375                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1376                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1377                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1378 
1379 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1380         SNDRV_PCM_FMTBIT_S24_LE)
1381 
1382 /*
1383  * The WM8753 supports up to 4 different and mutually exclusive DAI
1384  * configurations. This gives 2 PCM's available for use, hifi and voice.
1385  * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1386  * is connected between the wm8753 and a BT codec or GSM modem.
1387  *
1388  * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1389  * 2. Voice over HIFI DAI - HIFI disabled
1390  * 3. Voice disabled - HIFI over HIFI
1391  * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1392  */
1393 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1394         .hw_params      = wm8753_i2s_hw_params,
1395         .digital_mute   = wm8753_mute,
1396         .set_fmt        = wm8753_hifi_set_dai_fmt,
1397         .set_clkdiv     = wm8753_set_dai_clkdiv,
1398         .set_pll        = wm8753_set_dai_pll,
1399         .set_sysclk     = wm8753_set_dai_sysclk,
1400 };
1401 
1402 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1403         .hw_params      = wm8753_pcm_hw_params,
1404         .digital_mute   = wm8753_mute,
1405         .set_fmt        = wm8753_voice_set_dai_fmt,
1406         .set_clkdiv     = wm8753_set_dai_clkdiv,
1407         .set_pll        = wm8753_set_dai_pll,
1408         .set_sysclk     = wm8753_set_dai_sysclk,
1409 };
1410 
1411 static struct snd_soc_dai_driver wm8753_dai[] = {
1412 /* DAI HiFi mode 1 */
1413 {       .name = "wm8753-hifi",
1414         .playback = {
1415                 .stream_name = "HiFi Playback",
1416                 .channels_min = 1,
1417                 .channels_max = 2,
1418                 .rates = WM8753_RATES,
1419                 .formats = WM8753_FORMATS
1420         },
1421         .capture = { /* dummy for fast DAI switching */
1422                 .stream_name = "Capture",
1423                 .channels_min = 1,
1424                 .channels_max = 2,
1425                 .rates = WM8753_RATES,
1426                 .formats = WM8753_FORMATS
1427         },
1428         .ops = &wm8753_dai_ops_hifi_mode,
1429 },
1430 /* DAI Voice mode 1 */
1431 {       .name = "wm8753-voice",
1432         .playback = {
1433                 .stream_name = "Voice Playback",
1434                 .channels_min = 1,
1435                 .channels_max = 1,
1436                 .rates = WM8753_RATES,
1437                 .formats = WM8753_FORMATS,
1438         },
1439         .capture = {
1440                 .stream_name = "Capture",
1441                 .channels_min = 1,
1442                 .channels_max = 2,
1443                 .rates = WM8753_RATES,
1444                 .formats = WM8753_FORMATS,
1445         },
1446         .ops = &wm8753_dai_ops_voice_mode,
1447 },
1448 };
1449 
1450 static int wm8753_resume(struct snd_soc_codec *codec)
1451 {
1452         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1453 
1454         regcache_sync(wm8753->regmap);
1455 
1456         return 0;
1457 }
1458 
1459 static int wm8753_probe(struct snd_soc_codec *codec)
1460 {
1461         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1462         int ret;
1463 
1464         INIT_DELAYED_WORK(&wm8753->charge_work, wm8753_charge_work);
1465 
1466         ret = wm8753_reset(codec);
1467         if (ret < 0) {
1468                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1469                 return ret;
1470         }
1471 
1472         wm8753->dai_func = 0;
1473 
1474         /* set the update bits */
1475         snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1476         snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1477         snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1478         snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1479         snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1480         snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1481         snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1482         snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1483         snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1484         snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1485 
1486         return 0;
1487 }
1488 
1489 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1490         .probe =        wm8753_probe,
1491         .resume =       wm8753_resume,
1492         .set_bias_level = wm8753_set_bias_level,
1493         .suspend_bias_off = true,
1494 
1495         .controls = wm8753_snd_controls,
1496         .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1497         .dapm_widgets = wm8753_dapm_widgets,
1498         .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1499         .dapm_routes = wm8753_dapm_routes,
1500         .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1501 };
1502 
1503 static const struct of_device_id wm8753_of_match[] = {
1504         { .compatible = "wlf,wm8753", },
1505         { }
1506 };
1507 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1508 
1509 static const struct regmap_config wm8753_regmap = {
1510         .reg_bits = 7,
1511         .val_bits = 9,
1512 
1513         .max_register = WM8753_ADCTL2,
1514         .writeable_reg = wm8753_writeable,
1515         .volatile_reg = wm8753_volatile,
1516 
1517         .cache_type = REGCACHE_RBTREE,
1518         .reg_defaults = wm8753_reg_defaults,
1519         .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1520 };
1521 
1522 #if defined(CONFIG_SPI_MASTER)
1523 static int wm8753_spi_probe(struct spi_device *spi)
1524 {
1525         struct wm8753_priv *wm8753;
1526         int ret;
1527 
1528         wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
1529                               GFP_KERNEL);
1530         if (wm8753 == NULL)
1531                 return -ENOMEM;
1532 
1533         spi_set_drvdata(spi, wm8753);
1534 
1535         wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap);
1536         if (IS_ERR(wm8753->regmap)) {
1537                 ret = PTR_ERR(wm8753->regmap);
1538                 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1539                         ret);
1540                 return ret;
1541         }
1542 
1543         ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753,
1544                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1545         if (ret != 0)
1546                 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1547 
1548         return ret;
1549 }
1550 
1551 static int wm8753_spi_remove(struct spi_device *spi)
1552 {
1553         snd_soc_unregister_codec(&spi->dev);
1554         return 0;
1555 }
1556 
1557 static struct spi_driver wm8753_spi_driver = {
1558         .driver = {
1559                 .name   = "wm8753",
1560                 .owner  = THIS_MODULE,
1561                 .of_match_table = wm8753_of_match,
1562         },
1563         .probe          = wm8753_spi_probe,
1564         .remove         = wm8753_spi_remove,
1565 };
1566 #endif /* CONFIG_SPI_MASTER */
1567 
1568 #if IS_ENABLED(CONFIG_I2C)
1569 static int wm8753_i2c_probe(struct i2c_client *i2c,
1570                             const struct i2c_device_id *id)
1571 {
1572         struct wm8753_priv *wm8753;
1573         int ret;
1574 
1575         wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
1576                               GFP_KERNEL);
1577         if (wm8753 == NULL)
1578                 return -ENOMEM;
1579 
1580         i2c_set_clientdata(i2c, wm8753);
1581 
1582         wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap);
1583         if (IS_ERR(wm8753->regmap)) {
1584                 ret = PTR_ERR(wm8753->regmap);
1585                 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1586                         ret);
1587                 return ret;
1588         }
1589 
1590         ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753,
1591                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1592         if (ret != 0)
1593                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1594 
1595         return ret;
1596 }
1597 
1598 static int wm8753_i2c_remove(struct i2c_client *client)
1599 {
1600         snd_soc_unregister_codec(&client->dev);
1601         return 0;
1602 }
1603 
1604 static const struct i2c_device_id wm8753_i2c_id[] = {
1605         { "wm8753", 0 },
1606         { }
1607 };
1608 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1609 
1610 static struct i2c_driver wm8753_i2c_driver = {
1611         .driver = {
1612                 .name = "wm8753",
1613                 .owner = THIS_MODULE,
1614                 .of_match_table = wm8753_of_match,
1615         },
1616         .probe =    wm8753_i2c_probe,
1617         .remove =   wm8753_i2c_remove,
1618         .id_table = wm8753_i2c_id,
1619 };
1620 #endif
1621 
1622 static int __init wm8753_modinit(void)
1623 {
1624         int ret = 0;
1625 #if IS_ENABLED(CONFIG_I2C)
1626         ret = i2c_add_driver(&wm8753_i2c_driver);
1627         if (ret != 0) {
1628                 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1629                        ret);
1630         }
1631 #endif
1632 #if defined(CONFIG_SPI_MASTER)
1633         ret = spi_register_driver(&wm8753_spi_driver);
1634         if (ret != 0) {
1635                 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1636                        ret);
1637         }
1638 #endif
1639         return ret;
1640 }
1641 module_init(wm8753_modinit);
1642 
1643 static void __exit wm8753_exit(void)
1644 {
1645 #if IS_ENABLED(CONFIG_I2C)
1646         i2c_del_driver(&wm8753_i2c_driver);
1647 #endif
1648 #if defined(CONFIG_SPI_MASTER)
1649         spi_unregister_driver(&wm8753_spi_driver);
1650 #endif
1651 }
1652 module_exit(wm8753_exit);
1653 
1654 MODULE_DESCRIPTION("ASoC WM8753 driver");
1655 MODULE_AUTHOR("Liam Girdwood");
1656 MODULE_LICENSE("GPL");
1657 

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