Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 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

Linux/sound/soc/codecs/wm8510.c

  1 /*
  2  * wm8510.c  --  WM8510 ALSA Soc Audio driver
  3  *
  4  * Copyright 2006 Wolfson Microelectronics PLC.
  5  *
  6  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License version 2 as
 10  * published by the Free Software Foundation.
 11  */
 12 
 13 #include <linux/module.h>
 14 #include <linux/moduleparam.h>
 15 #include <linux/kernel.h>
 16 #include <linux/init.h>
 17 #include <linux/delay.h>
 18 #include <linux/pm.h>
 19 #include <linux/i2c.h>
 20 #include <linux/spi/spi.h>
 21 #include <linux/slab.h>
 22 #include <linux/of_device.h>
 23 #include <linux/regmap.h>
 24 #include <sound/core.h>
 25 #include <sound/pcm.h>
 26 #include <sound/pcm_params.h>
 27 #include <sound/soc.h>
 28 #include <sound/initval.h>
 29 
 30 #include "wm8510.h"
 31 
 32 /*
 33  * wm8510 register cache
 34  * We can't read the WM8510 register space when we are
 35  * using 2 wire for device control, so we cache them instead.
 36  */
 37 static const struct reg_default wm8510_reg_defaults[] = {
 38         {  1, 0x0000 },
 39         {  2, 0x0000 },
 40         {  3, 0x0000 },
 41         {  4, 0x0050 },
 42         {  5, 0x0000 },
 43         {  6, 0x0140 },
 44         {  7, 0x0000 },
 45         {  8, 0x0000 },
 46         {  9, 0x0000 },
 47         { 10, 0x0000 },
 48         { 11, 0x00ff },
 49         { 12, 0x0000 },
 50         { 13, 0x0000 },
 51         { 14, 0x0100 },
 52         { 15, 0x00ff },
 53         { 16, 0x0000 },
 54         { 17, 0x0000 },
 55         { 18, 0x012c },
 56         { 19, 0x002c },
 57         { 20, 0x002c },
 58         { 21, 0x002c },
 59         { 22, 0x002c },
 60         { 23, 0x0000 },
 61         { 24, 0x0032 },
 62         { 25, 0x0000 },
 63         { 26, 0x0000 },
 64         { 27, 0x0000 },
 65         { 28, 0x0000 },
 66         { 29, 0x0000 },
 67         { 30, 0x0000 },
 68         { 31, 0x0000 },
 69         { 32, 0x0038 },
 70         { 33, 0x000b },
 71         { 34, 0x0032 },
 72         { 35, 0x0000 },
 73         { 36, 0x0008 },
 74         { 37, 0x000c },
 75         { 38, 0x0093 },
 76         { 39, 0x00e9 },
 77         { 40, 0x0000 },
 78         { 41, 0x0000 },
 79         { 42, 0x0000 },
 80         { 43, 0x0000 },
 81         { 44, 0x0003 },
 82         { 45, 0x0010 },
 83         { 46, 0x0000 },
 84         { 47, 0x0000 },
 85         { 48, 0x0000 },
 86         { 49, 0x0002 },
 87         { 50, 0x0001 },
 88         { 51, 0x0000 },
 89         { 52, 0x0000 },
 90         { 53, 0x0000 },
 91         { 54, 0x0039 },
 92         { 55, 0x0000 },
 93         { 56, 0x0001 },
 94 };
 95 
 96 static bool wm8510_volatile(struct device *dev, unsigned int reg)
 97 {
 98         switch (reg) {
 99         case WM8510_RESET:
100                 return true;
101         default:
102                 return false;
103         }
104 }
105 
106 #define WM8510_POWER1_BIASEN  0x08
107 #define WM8510_POWER1_BUFIOEN 0x10
108 
109 #define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
110 
111 /* codec private data */
112 struct wm8510_priv {
113         struct regmap *regmap;
114 };
115 
116 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
117 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
118 static const char *wm8510_alc[] = { "ALC", "Limiter" };
119 
120 static const struct soc_enum wm8510_enum[] = {
121         SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
122         SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
123         SOC_ENUM_SINGLE(WM8510_DAC,  4, 4, wm8510_deemp),
124         SOC_ENUM_SINGLE(WM8510_ALC3,  8, 2, wm8510_alc),
125 };
126 
127 static const struct snd_kcontrol_new wm8510_snd_controls[] = {
128 
129 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
130 
131 SOC_ENUM("DAC Companding", wm8510_enum[1]),
132 SOC_ENUM("ADC Companding", wm8510_enum[0]),
133 
134 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
135 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
136 
137 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
138 
139 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
140 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
141 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
142 
143 SOC_SINGLE("Capture Volume", WM8510_ADCVOL,  0, 127, 0),
144 
145 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1,  8, 1, 0),
146 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1,  4, 15, 0),
147 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1,  0, 15, 0),
148 
149 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2,  4, 7, 0),
150 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2,  0, 15, 0),
151 
152 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1,  8, 1, 0),
153 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1,  3, 7, 0),
154 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1,  0, 7, 0),
155 
156 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2,  8, 1, 0),
157 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2,  4, 7, 0),
158 SOC_SINGLE("ALC Capture Target", WM8510_ALC2,  0, 15, 0),
159 
160 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
161 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3,  4, 15, 0),
162 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3,  0, 15, 0),
163 
164 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE,  3, 1, 0),
165 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE,  0, 7, 0),
166 
167 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA,  7, 1, 0),
168 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA,  0, 63, 0),
169 
170 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL,  7, 1, 0),
171 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL,  6, 1, 1),
172 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL,  0, 63, 0),
173 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
174 
175 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST,  8, 1, 0),
176 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
177 };
178 
179 /* Speaker Output Mixer */
180 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
181 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
182 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
183 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
184 };
185 
186 /* Mono Output Mixer */
187 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
188 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
189 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
190 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
191 };
192 
193 static const struct snd_kcontrol_new wm8510_boost_controls[] = {
194 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA,  6, 1, 1),
195 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
196 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
197 };
198 
199 static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
200 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
201 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
202 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
203 };
204 
205 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
206 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
207         &wm8510_speaker_mixer_controls[0],
208         ARRAY_SIZE(wm8510_speaker_mixer_controls)),
209 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
210         &wm8510_mono_mixer_controls[0],
211         ARRAY_SIZE(wm8510_mono_mixer_controls)),
212 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
213 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
214 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
215 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
216 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
217 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
218 
219 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
220                    &wm8510_micpga_controls[0],
221                    ARRAY_SIZE(wm8510_micpga_controls)),
222 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
223         &wm8510_boost_controls[0],
224         ARRAY_SIZE(wm8510_boost_controls)),
225 
226 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
227 
228 SND_SOC_DAPM_INPUT("MICN"),
229 SND_SOC_DAPM_INPUT("MICP"),
230 SND_SOC_DAPM_INPUT("AUX"),
231 SND_SOC_DAPM_OUTPUT("MONOOUT"),
232 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
233 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
234 };
235 
236 static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
237         /* Mono output mixer */
238         {"Mono Mixer", "PCM Playback Switch", "DAC"},
239         {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
240         {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
241 
242         /* Speaker output mixer */
243         {"Speaker Mixer", "PCM Playback Switch", "DAC"},
244         {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
245         {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
246 
247         /* Outputs */
248         {"Mono Out", NULL, "Mono Mixer"},
249         {"MONOOUT", NULL, "Mono Out"},
250         {"SpkN Out", NULL, "Speaker Mixer"},
251         {"SpkP Out", NULL, "Speaker Mixer"},
252         {"SPKOUTN", NULL, "SpkN Out"},
253         {"SPKOUTP", NULL, "SpkP Out"},
254 
255         /* Microphone PGA */
256         {"Mic PGA", "MICN Switch", "MICN"},
257         {"Mic PGA", "MICP Switch", "MICP"},
258         { "Mic PGA", "AUX Switch", "Aux Input" },
259 
260         /* Boost Mixer */
261         {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
262         {"Boost Mixer", "Mic Volume", "MICP"},
263         {"Boost Mixer", "Aux Volume", "Aux Input"},
264 
265         {"ADC", NULL, "Boost Mixer"},
266 };
267 
268 struct pll_ {
269         unsigned int pre_div:4; /* prescale - 1 */
270         unsigned int n:4;
271         unsigned int k;
272 };
273 
274 static struct pll_ pll_div;
275 
276 /* The size in bits of the pll divide multiplied by 10
277  * to allow rounding later */
278 #define FIXED_PLL_SIZE ((1 << 24) * 10)
279 
280 static void pll_factors(unsigned int target, unsigned int source)
281 {
282         unsigned long long Kpart;
283         unsigned int K, Ndiv, Nmod;
284 
285         Ndiv = target / source;
286         if (Ndiv < 6) {
287                 source >>= 1;
288                 pll_div.pre_div = 1;
289                 Ndiv = target / source;
290         } else
291                 pll_div.pre_div = 0;
292 
293         if ((Ndiv < 6) || (Ndiv > 12))
294                 printk(KERN_WARNING
295                         "WM8510 N value %u outwith recommended range!d\n",
296                         Ndiv);
297 
298         pll_div.n = Ndiv;
299         Nmod = target % source;
300         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
301 
302         do_div(Kpart, source);
303 
304         K = Kpart & 0xFFFFFFFF;
305 
306         /* Check if we need to round */
307         if ((K % 10) >= 5)
308                 K += 5;
309 
310         /* Move down to proper range now rounding is done */
311         K /= 10;
312 
313         pll_div.k = K;
314 }
315 
316 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
317                 int source, unsigned int freq_in, unsigned int freq_out)
318 {
319         struct snd_soc_codec *codec = codec_dai->codec;
320         u16 reg;
321 
322         if (freq_in == 0 || freq_out == 0) {
323                 /* Clock CODEC directly from MCLK */
324                 reg = snd_soc_read(codec, WM8510_CLOCK);
325                 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
326 
327                 /* Turn off PLL */
328                 reg = snd_soc_read(codec, WM8510_POWER1);
329                 snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
330                 return 0;
331         }
332 
333         pll_factors(freq_out*4, freq_in);
334 
335         snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
336         snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
337         snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
338         snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
339         reg = snd_soc_read(codec, WM8510_POWER1);
340         snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
341 
342         /* Run CODEC from PLL instead of MCLK */
343         reg = snd_soc_read(codec, WM8510_CLOCK);
344         snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
345 
346         return 0;
347 }
348 
349 /*
350  * Configure WM8510 clock dividers.
351  */
352 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
353                 int div_id, int div)
354 {
355         struct snd_soc_codec *codec = codec_dai->codec;
356         u16 reg;
357 
358         switch (div_id) {
359         case WM8510_OPCLKDIV:
360                 reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
361                 snd_soc_write(codec, WM8510_GPIO, reg | div);
362                 break;
363         case WM8510_MCLKDIV:
364                 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
365                 snd_soc_write(codec, WM8510_CLOCK, reg | div);
366                 break;
367         case WM8510_ADCCLK:
368                 reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
369                 snd_soc_write(codec, WM8510_ADC, reg | div);
370                 break;
371         case WM8510_DACCLK:
372                 reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
373                 snd_soc_write(codec, WM8510_DAC, reg | div);
374                 break;
375         case WM8510_BCLKDIV:
376                 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
377                 snd_soc_write(codec, WM8510_CLOCK, reg | div);
378                 break;
379         default:
380                 return -EINVAL;
381         }
382 
383         return 0;
384 }
385 
386 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
387                 unsigned int fmt)
388 {
389         struct snd_soc_codec *codec = codec_dai->codec;
390         u16 iface = 0;
391         u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
392 
393         /* set master/slave audio interface */
394         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
395         case SND_SOC_DAIFMT_CBM_CFM:
396                 clk |= 0x0001;
397                 break;
398         case SND_SOC_DAIFMT_CBS_CFS:
399                 break;
400         default:
401                 return -EINVAL;
402         }
403 
404         /* interface format */
405         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
406         case SND_SOC_DAIFMT_I2S:
407                 iface |= 0x0010;
408                 break;
409         case SND_SOC_DAIFMT_RIGHT_J:
410                 break;
411         case SND_SOC_DAIFMT_LEFT_J:
412                 iface |= 0x0008;
413                 break;
414         case SND_SOC_DAIFMT_DSP_A:
415                 iface |= 0x00018;
416                 break;
417         default:
418                 return -EINVAL;
419         }
420 
421         /* clock inversion */
422         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
423         case SND_SOC_DAIFMT_NB_NF:
424                 break;
425         case SND_SOC_DAIFMT_IB_IF:
426                 iface |= 0x0180;
427                 break;
428         case SND_SOC_DAIFMT_IB_NF:
429                 iface |= 0x0100;
430                 break;
431         case SND_SOC_DAIFMT_NB_IF:
432                 iface |= 0x0080;
433                 break;
434         default:
435                 return -EINVAL;
436         }
437 
438         snd_soc_write(codec, WM8510_IFACE, iface);
439         snd_soc_write(codec, WM8510_CLOCK, clk);
440         return 0;
441 }
442 
443 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
444                                 struct snd_pcm_hw_params *params,
445                                 struct snd_soc_dai *dai)
446 {
447         struct snd_soc_codec *codec = dai->codec;
448         u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
449         u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
450 
451         /* bit size */
452         switch (params_width(params)) {
453         case 16:
454                 break;
455         case 20:
456                 iface |= 0x0020;
457                 break;
458         case 24:
459                 iface |= 0x0040;
460                 break;
461         case 32:
462                 iface |= 0x0060;
463                 break;
464         }
465 
466         /* filter coefficient */
467         switch (params_rate(params)) {
468         case 8000:
469                 adn |= 0x5 << 1;
470                 break;
471         case 11025:
472                 adn |= 0x4 << 1;
473                 break;
474         case 16000:
475                 adn |= 0x3 << 1;
476                 break;
477         case 22050:
478                 adn |= 0x2 << 1;
479                 break;
480         case 32000:
481                 adn |= 0x1 << 1;
482                 break;
483         case 44100:
484         case 48000:
485                 break;
486         }
487 
488         snd_soc_write(codec, WM8510_IFACE, iface);
489         snd_soc_write(codec, WM8510_ADD, adn);
490         return 0;
491 }
492 
493 static int wm8510_mute(struct snd_soc_dai *dai, int mute)
494 {
495         struct snd_soc_codec *codec = dai->codec;
496         u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
497 
498         if (mute)
499                 snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
500         else
501                 snd_soc_write(codec, WM8510_DAC, mute_reg);
502         return 0;
503 }
504 
505 /* liam need to make this lower power with dapm */
506 static int wm8510_set_bias_level(struct snd_soc_codec *codec,
507         enum snd_soc_bias_level level)
508 {
509         struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
510         u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
511 
512         switch (level) {
513         case SND_SOC_BIAS_ON:
514         case SND_SOC_BIAS_PREPARE:
515                 power1 |= 0x1;  /* VMID 50k */
516                 snd_soc_write(codec, WM8510_POWER1, power1);
517                 break;
518 
519         case SND_SOC_BIAS_STANDBY:
520                 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
521 
522                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
523                         regcache_sync(wm8510->regmap);
524 
525                         /* Initial cap charge at VMID 5k */
526                         snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
527                         mdelay(100);
528                 }
529 
530                 power1 |= 0x2;  /* VMID 500k */
531                 snd_soc_write(codec, WM8510_POWER1, power1);
532                 break;
533 
534         case SND_SOC_BIAS_OFF:
535                 snd_soc_write(codec, WM8510_POWER1, 0);
536                 snd_soc_write(codec, WM8510_POWER2, 0);
537                 snd_soc_write(codec, WM8510_POWER3, 0);
538                 break;
539         }
540 
541         codec->dapm.bias_level = level;
542         return 0;
543 }
544 
545 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
546                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
547                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
548 
549 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
550         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
551 
552 static const struct snd_soc_dai_ops wm8510_dai_ops = {
553         .hw_params      = wm8510_pcm_hw_params,
554         .digital_mute   = wm8510_mute,
555         .set_fmt        = wm8510_set_dai_fmt,
556         .set_clkdiv     = wm8510_set_dai_clkdiv,
557         .set_pll        = wm8510_set_dai_pll,
558 };
559 
560 static struct snd_soc_dai_driver wm8510_dai = {
561         .name = "wm8510-hifi",
562         .playback = {
563                 .stream_name = "Playback",
564                 .channels_min = 2,
565                 .channels_max = 2,
566                 .rates = WM8510_RATES,
567                 .formats = WM8510_FORMATS,},
568         .capture = {
569                 .stream_name = "Capture",
570                 .channels_min = 2,
571                 .channels_max = 2,
572                 .rates = WM8510_RATES,
573                 .formats = WM8510_FORMATS,},
574         .ops = &wm8510_dai_ops,
575         .symmetric_rates = 1,
576 };
577 
578 static int wm8510_suspend(struct snd_soc_codec *codec)
579 {
580         wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
581         return 0;
582 }
583 
584 static int wm8510_resume(struct snd_soc_codec *codec)
585 {
586         wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
587         return 0;
588 }
589 
590 static int wm8510_probe(struct snd_soc_codec *codec)
591 {
592         wm8510_reset(codec);
593 
594         /* power on device */
595         wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
596 
597         return 0;
598 }
599 
600 /* power down chip */
601 static int wm8510_remove(struct snd_soc_codec *codec)
602 {
603         wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
604         return 0;
605 }
606 
607 static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
608         .probe =        wm8510_probe,
609         .remove =       wm8510_remove,
610         .suspend =      wm8510_suspend,
611         .resume =       wm8510_resume,
612         .set_bias_level = wm8510_set_bias_level,
613 
614         .controls = wm8510_snd_controls,
615         .num_controls = ARRAY_SIZE(wm8510_snd_controls),
616         .dapm_widgets = wm8510_dapm_widgets,
617         .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
618         .dapm_routes = wm8510_dapm_routes,
619         .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
620 };
621 
622 static const struct of_device_id wm8510_of_match[] = {
623         { .compatible = "wlf,wm8510" },
624         { },
625 };
626 
627 static const struct regmap_config wm8510_regmap = {
628         .reg_bits = 7,
629         .val_bits = 9,
630         .max_register = WM8510_MONOMIX,
631 
632         .reg_defaults = wm8510_reg_defaults,
633         .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
634         .cache_type = REGCACHE_RBTREE,
635 
636         .volatile_reg = wm8510_volatile,
637 };
638 
639 #if defined(CONFIG_SPI_MASTER)
640 static int wm8510_spi_probe(struct spi_device *spi)
641 {
642         struct wm8510_priv *wm8510;
643         int ret;
644 
645         wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
646                               GFP_KERNEL);
647         if (wm8510 == NULL)
648                 return -ENOMEM;
649 
650         wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
651         if (IS_ERR(wm8510->regmap))
652                 return PTR_ERR(wm8510->regmap);
653 
654         spi_set_drvdata(spi, wm8510);
655 
656         ret = snd_soc_register_codec(&spi->dev,
657                         &soc_codec_dev_wm8510, &wm8510_dai, 1);
658 
659         return ret;
660 }
661 
662 static int wm8510_spi_remove(struct spi_device *spi)
663 {
664         snd_soc_unregister_codec(&spi->dev);
665         return 0;
666 }
667 
668 static struct spi_driver wm8510_spi_driver = {
669         .driver = {
670                 .name   = "wm8510",
671                 .owner  = THIS_MODULE,
672                 .of_match_table = wm8510_of_match,
673         },
674         .probe          = wm8510_spi_probe,
675         .remove         = wm8510_spi_remove,
676 };
677 #endif /* CONFIG_SPI_MASTER */
678 
679 #if IS_ENABLED(CONFIG_I2C)
680 static int wm8510_i2c_probe(struct i2c_client *i2c,
681                             const struct i2c_device_id *id)
682 {
683         struct wm8510_priv *wm8510;
684         int ret;
685 
686         wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
687                               GFP_KERNEL);
688         if (wm8510 == NULL)
689                 return -ENOMEM;
690 
691         wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
692         if (IS_ERR(wm8510->regmap))
693                 return PTR_ERR(wm8510->regmap);
694 
695         i2c_set_clientdata(i2c, wm8510);
696 
697         ret =  snd_soc_register_codec(&i2c->dev,
698                         &soc_codec_dev_wm8510, &wm8510_dai, 1);
699 
700         return ret;
701 }
702 
703 static int wm8510_i2c_remove(struct i2c_client *client)
704 {
705         snd_soc_unregister_codec(&client->dev);
706         return 0;
707 }
708 
709 static const struct i2c_device_id wm8510_i2c_id[] = {
710         { "wm8510", 0 },
711         { }
712 };
713 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
714 
715 static struct i2c_driver wm8510_i2c_driver = {
716         .driver = {
717                 .name = "wm8510",
718                 .owner = THIS_MODULE,
719                 .of_match_table = wm8510_of_match,
720         },
721         .probe =    wm8510_i2c_probe,
722         .remove =   wm8510_i2c_remove,
723         .id_table = wm8510_i2c_id,
724 };
725 #endif
726 
727 static int __init wm8510_modinit(void)
728 {
729         int ret = 0;
730 #if IS_ENABLED(CONFIG_I2C)
731         ret = i2c_add_driver(&wm8510_i2c_driver);
732         if (ret != 0) {
733                 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
734                        ret);
735         }
736 #endif
737 #if defined(CONFIG_SPI_MASTER)
738         ret = spi_register_driver(&wm8510_spi_driver);
739         if (ret != 0) {
740                 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
741                        ret);
742         }
743 #endif
744         return ret;
745 }
746 module_init(wm8510_modinit);
747 
748 static void __exit wm8510_exit(void)
749 {
750 #if IS_ENABLED(CONFIG_I2C)
751         i2c_del_driver(&wm8510_i2c_driver);
752 #endif
753 #if defined(CONFIG_SPI_MASTER)
754         spi_unregister_driver(&wm8510_spi_driver);
755 #endif
756 }
757 module_exit(wm8510_exit);
758 
759 MODULE_DESCRIPTION("ASoC WM8510 driver");
760 MODULE_AUTHOR("Liam Girdwood");
761 MODULE_LICENSE("GPL");
762 

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