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Linux/sound/soc/codecs/wm8510.c

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  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * wm8510.c  --  WM8510 ALSA Soc Audio driver
  4  *
  5  * Copyright 2006 Wolfson Microelectronics PLC.
  6  *
  7  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
  8  */
  9 
 10 #include <linux/module.h>
 11 #include <linux/moduleparam.h>
 12 #include <linux/kernel.h>
 13 #include <linux/init.h>
 14 #include <linux/delay.h>
 15 #include <linux/pm.h>
 16 #include <linux/i2c.h>
 17 #include <linux/spi/spi.h>
 18 #include <linux/slab.h>
 19 #include <linux/of_device.h>
 20 #include <linux/regmap.h>
 21 #include <sound/core.h>
 22 #include <sound/pcm.h>
 23 #include <sound/pcm_params.h>
 24 #include <sound/soc.h>
 25 #include <sound/initval.h>
 26 
 27 #include "wm8510.h"
 28 
 29 /*
 30  * wm8510 register cache
 31  * We can't read the WM8510 register space when we are
 32  * using 2 wire for device control, so we cache them instead.
 33  */
 34 static const struct reg_default wm8510_reg_defaults[] = {
 35         {  1, 0x0000 },
 36         {  2, 0x0000 },
 37         {  3, 0x0000 },
 38         {  4, 0x0050 },
 39         {  5, 0x0000 },
 40         {  6, 0x0140 },
 41         {  7, 0x0000 },
 42         {  8, 0x0000 },
 43         {  9, 0x0000 },
 44         { 10, 0x0000 },
 45         { 11, 0x00ff },
 46         { 12, 0x0000 },
 47         { 13, 0x0000 },
 48         { 14, 0x0100 },
 49         { 15, 0x00ff },
 50         { 16, 0x0000 },
 51         { 17, 0x0000 },
 52         { 18, 0x012c },
 53         { 19, 0x002c },
 54         { 20, 0x002c },
 55         { 21, 0x002c },
 56         { 22, 0x002c },
 57         { 23, 0x0000 },
 58         { 24, 0x0032 },
 59         { 25, 0x0000 },
 60         { 26, 0x0000 },
 61         { 27, 0x0000 },
 62         { 28, 0x0000 },
 63         { 29, 0x0000 },
 64         { 30, 0x0000 },
 65         { 31, 0x0000 },
 66         { 32, 0x0038 },
 67         { 33, 0x000b },
 68         { 34, 0x0032 },
 69         { 35, 0x0000 },
 70         { 36, 0x0008 },
 71         { 37, 0x000c },
 72         { 38, 0x0093 },
 73         { 39, 0x00e9 },
 74         { 40, 0x0000 },
 75         { 41, 0x0000 },
 76         { 42, 0x0000 },
 77         { 43, 0x0000 },
 78         { 44, 0x0003 },
 79         { 45, 0x0010 },
 80         { 46, 0x0000 },
 81         { 47, 0x0000 },
 82         { 48, 0x0000 },
 83         { 49, 0x0002 },
 84         { 50, 0x0001 },
 85         { 51, 0x0000 },
 86         { 52, 0x0000 },
 87         { 53, 0x0000 },
 88         { 54, 0x0039 },
 89         { 55, 0x0000 },
 90         { 56, 0x0001 },
 91 };
 92 
 93 static bool wm8510_volatile(struct device *dev, unsigned int reg)
 94 {
 95         switch (reg) {
 96         case WM8510_RESET:
 97                 return true;
 98         default:
 99                 return false;
100         }
101 }
102 
103 #define WM8510_POWER1_BIASEN  0x08
104 #define WM8510_POWER1_BUFIOEN 0x10
105 
106 #define wm8510_reset(c) snd_soc_component_write(c, WM8510_RESET, 0)
107 
108 /* codec private data */
109 struct wm8510_priv {
110         struct regmap *regmap;
111 };
112 
113 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
114 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
115 static const char *wm8510_alc[] = { "ALC", "Limiter" };
116 
117 static const struct soc_enum wm8510_enum[] = {
118         SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
119         SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
120         SOC_ENUM_SINGLE(WM8510_DAC,  4, 4, wm8510_deemp),
121         SOC_ENUM_SINGLE(WM8510_ALC3,  8, 2, wm8510_alc),
122 };
123 
124 static const struct snd_kcontrol_new wm8510_snd_controls[] = {
125 
126 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
127 
128 SOC_ENUM("DAC Companding", wm8510_enum[1]),
129 SOC_ENUM("ADC Companding", wm8510_enum[0]),
130 
131 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
132 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
133 
134 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
135 
136 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
137 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
138 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
139 
140 SOC_SINGLE("Capture Volume", WM8510_ADCVOL,  0, 127, 0),
141 
142 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1,  8, 1, 0),
143 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1,  4, 15, 0),
144 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1,  0, 15, 0),
145 
146 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2,  4, 7, 0),
147 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2,  0, 15, 0),
148 
149 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1,  8, 1, 0),
150 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1,  3, 7, 0),
151 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1,  0, 7, 0),
152 
153 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2,  8, 1, 0),
154 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2,  4, 7, 0),
155 SOC_SINGLE("ALC Capture Target", WM8510_ALC2,  0, 15, 0),
156 
157 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
158 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3,  4, 15, 0),
159 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3,  0, 15, 0),
160 
161 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE,  3, 1, 0),
162 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE,  0, 7, 0),
163 
164 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA,  7, 1, 0),
165 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA,  0, 63, 0),
166 
167 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL,  7, 1, 0),
168 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL,  6, 1, 1),
169 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL,  0, 63, 0),
170 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
171 
172 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST,  8, 1, 0),
173 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
174 };
175 
176 /* Speaker Output Mixer */
177 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
178 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
179 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
180 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
181 };
182 
183 /* Mono Output Mixer */
184 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
185 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
186 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
187 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
188 };
189 
190 static const struct snd_kcontrol_new wm8510_boost_controls[] = {
191 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA,  6, 1, 1),
192 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
193 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
194 };
195 
196 static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
197 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
198 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
199 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
200 };
201 
202 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
203 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
204         &wm8510_speaker_mixer_controls[0],
205         ARRAY_SIZE(wm8510_speaker_mixer_controls)),
206 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
207         &wm8510_mono_mixer_controls[0],
208         ARRAY_SIZE(wm8510_mono_mixer_controls)),
209 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
210 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
211 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
212 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
213 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
214 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
215 
216 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
217                    &wm8510_micpga_controls[0],
218                    ARRAY_SIZE(wm8510_micpga_controls)),
219 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
220         &wm8510_boost_controls[0],
221         ARRAY_SIZE(wm8510_boost_controls)),
222 
223 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
224 
225 SND_SOC_DAPM_INPUT("MICN"),
226 SND_SOC_DAPM_INPUT("MICP"),
227 SND_SOC_DAPM_INPUT("AUX"),
228 SND_SOC_DAPM_OUTPUT("MONOOUT"),
229 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
230 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
231 };
232 
233 static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
234         /* Mono output mixer */
235         {"Mono Mixer", "PCM Playback Switch", "DAC"},
236         {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
237         {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
238 
239         /* Speaker output mixer */
240         {"Speaker Mixer", "PCM Playback Switch", "DAC"},
241         {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
242         {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
243 
244         /* Outputs */
245         {"Mono Out", NULL, "Mono Mixer"},
246         {"MONOOUT", NULL, "Mono Out"},
247         {"SpkN Out", NULL, "Speaker Mixer"},
248         {"SpkP Out", NULL, "Speaker Mixer"},
249         {"SPKOUTN", NULL, "SpkN Out"},
250         {"SPKOUTP", NULL, "SpkP Out"},
251 
252         /* Microphone PGA */
253         {"Mic PGA", "MICN Switch", "MICN"},
254         {"Mic PGA", "MICP Switch", "MICP"},
255         { "Mic PGA", "AUX Switch", "Aux Input" },
256 
257         /* Boost Mixer */
258         {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
259         {"Boost Mixer", "Mic Volume", "MICP"},
260         {"Boost Mixer", "Aux Volume", "Aux Input"},
261 
262         {"ADC", NULL, "Boost Mixer"},
263 };
264 
265 struct pll_ {
266         unsigned int pre_div:4; /* prescale - 1 */
267         unsigned int n:4;
268         unsigned int k;
269 };
270 
271 static struct pll_ pll_div;
272 
273 /* The size in bits of the pll divide multiplied by 10
274  * to allow rounding later */
275 #define FIXED_PLL_SIZE ((1 << 24) * 10)
276 
277 static void pll_factors(unsigned int target, unsigned int source)
278 {
279         unsigned long long Kpart;
280         unsigned int K, Ndiv, Nmod;
281 
282         Ndiv = target / source;
283         if (Ndiv < 6) {
284                 source >>= 1;
285                 pll_div.pre_div = 1;
286                 Ndiv = target / source;
287         } else
288                 pll_div.pre_div = 0;
289 
290         if ((Ndiv < 6) || (Ndiv > 12))
291                 printk(KERN_WARNING
292                         "WM8510 N value %u outwith recommended range!d\n",
293                         Ndiv);
294 
295         pll_div.n = Ndiv;
296         Nmod = target % source;
297         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
298 
299         do_div(Kpart, source);
300 
301         K = Kpart & 0xFFFFFFFF;
302 
303         /* Check if we need to round */
304         if ((K % 10) >= 5)
305                 K += 5;
306 
307         /* Move down to proper range now rounding is done */
308         K /= 10;
309 
310         pll_div.k = K;
311 }
312 
313 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
314                 int source, unsigned int freq_in, unsigned int freq_out)
315 {
316         struct snd_soc_component *component = codec_dai->component;
317         u16 reg;
318 
319         if (freq_in == 0 || freq_out == 0) {
320                 /* Clock CODEC directly from MCLK */
321                 reg = snd_soc_component_read(component, WM8510_CLOCK);
322                 snd_soc_component_write(component, WM8510_CLOCK, reg & 0x0ff);
323 
324                 /* Turn off PLL */
325                 reg = snd_soc_component_read(component, WM8510_POWER1);
326                 snd_soc_component_write(component, WM8510_POWER1, reg & 0x1df);
327                 return 0;
328         }
329 
330         pll_factors(freq_out*4, freq_in);
331 
332         snd_soc_component_write(component, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
333         snd_soc_component_write(component, WM8510_PLLK1, pll_div.k >> 18);
334         snd_soc_component_write(component, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
335         snd_soc_component_write(component, WM8510_PLLK3, pll_div.k & 0x1ff);
336         reg = snd_soc_component_read(component, WM8510_POWER1);
337         snd_soc_component_write(component, WM8510_POWER1, reg | 0x020);
338 
339         /* Run CODEC from PLL instead of MCLK */
340         reg = snd_soc_component_read(component, WM8510_CLOCK);
341         snd_soc_component_write(component, WM8510_CLOCK, reg | 0x100);
342 
343         return 0;
344 }
345 
346 /*
347  * Configure WM8510 clock dividers.
348  */
349 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
350                 int div_id, int div)
351 {
352         struct snd_soc_component *component = codec_dai->component;
353         u16 reg;
354 
355         switch (div_id) {
356         case WM8510_OPCLKDIV:
357                 reg = snd_soc_component_read(component, WM8510_GPIO) & 0x1cf;
358                 snd_soc_component_write(component, WM8510_GPIO, reg | div);
359                 break;
360         case WM8510_MCLKDIV:
361                 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x11f;
362                 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
363                 break;
364         case WM8510_ADCCLK:
365                 reg = snd_soc_component_read(component, WM8510_ADC) & 0x1f7;
366                 snd_soc_component_write(component, WM8510_ADC, reg | div);
367                 break;
368         case WM8510_DACCLK:
369                 reg = snd_soc_component_read(component, WM8510_DAC) & 0x1f7;
370                 snd_soc_component_write(component, WM8510_DAC, reg | div);
371                 break;
372         case WM8510_BCLKDIV:
373                 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x1e3;
374                 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
375                 break;
376         default:
377                 return -EINVAL;
378         }
379 
380         return 0;
381 }
382 
383 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
384                 unsigned int fmt)
385 {
386         struct snd_soc_component *component = codec_dai->component;
387         u16 iface = 0;
388         u16 clk = snd_soc_component_read(component, WM8510_CLOCK) & 0x1fe;
389 
390         /* set master/slave audio interface */
391         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
392         case SND_SOC_DAIFMT_CBM_CFM:
393                 clk |= 0x0001;
394                 break;
395         case SND_SOC_DAIFMT_CBS_CFS:
396                 break;
397         default:
398                 return -EINVAL;
399         }
400 
401         /* interface format */
402         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
403         case SND_SOC_DAIFMT_I2S:
404                 iface |= 0x0010;
405                 break;
406         case SND_SOC_DAIFMT_RIGHT_J:
407                 break;
408         case SND_SOC_DAIFMT_LEFT_J:
409                 iface |= 0x0008;
410                 break;
411         case SND_SOC_DAIFMT_DSP_A:
412                 iface |= 0x00018;
413                 break;
414         default:
415                 return -EINVAL;
416         }
417 
418         /* clock inversion */
419         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
420         case SND_SOC_DAIFMT_NB_NF:
421                 break;
422         case SND_SOC_DAIFMT_IB_IF:
423                 iface |= 0x0180;
424                 break;
425         case SND_SOC_DAIFMT_IB_NF:
426                 iface |= 0x0100;
427                 break;
428         case SND_SOC_DAIFMT_NB_IF:
429                 iface |= 0x0080;
430                 break;
431         default:
432                 return -EINVAL;
433         }
434 
435         snd_soc_component_write(component, WM8510_IFACE, iface);
436         snd_soc_component_write(component, WM8510_CLOCK, clk);
437         return 0;
438 }
439 
440 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
441                                 struct snd_pcm_hw_params *params,
442                                 struct snd_soc_dai *dai)
443 {
444         struct snd_soc_component *component = dai->component;
445         u16 iface = snd_soc_component_read(component, WM8510_IFACE) & 0x19f;
446         u16 adn = snd_soc_component_read(component, WM8510_ADD) & 0x1f1;
447 
448         /* bit size */
449         switch (params_width(params)) {
450         case 16:
451                 break;
452         case 20:
453                 iface |= 0x0020;
454                 break;
455         case 24:
456                 iface |= 0x0040;
457                 break;
458         case 32:
459                 iface |= 0x0060;
460                 break;
461         }
462 
463         /* filter coefficient */
464         switch (params_rate(params)) {
465         case 8000:
466                 adn |= 0x5 << 1;
467                 break;
468         case 11025:
469                 adn |= 0x4 << 1;
470                 break;
471         case 16000:
472                 adn |= 0x3 << 1;
473                 break;
474         case 22050:
475                 adn |= 0x2 << 1;
476                 break;
477         case 32000:
478                 adn |= 0x1 << 1;
479                 break;
480         case 44100:
481         case 48000:
482                 break;
483         }
484 
485         snd_soc_component_write(component, WM8510_IFACE, iface);
486         snd_soc_component_write(component, WM8510_ADD, adn);
487         return 0;
488 }
489 
490 static int wm8510_mute(struct snd_soc_dai *dai, int mute, int direction)
491 {
492         struct snd_soc_component *component = dai->component;
493         u16 mute_reg = snd_soc_component_read(component, WM8510_DAC) & 0xffbf;
494 
495         if (mute)
496                 snd_soc_component_write(component, WM8510_DAC, mute_reg | 0x40);
497         else
498                 snd_soc_component_write(component, WM8510_DAC, mute_reg);
499         return 0;
500 }
501 
502 /* liam need to make this lower power with dapm */
503 static int wm8510_set_bias_level(struct snd_soc_component *component,
504         enum snd_soc_bias_level level)
505 {
506         struct wm8510_priv *wm8510 = snd_soc_component_get_drvdata(component);
507         u16 power1 = snd_soc_component_read(component, WM8510_POWER1) & ~0x3;
508 
509         switch (level) {
510         case SND_SOC_BIAS_ON:
511         case SND_SOC_BIAS_PREPARE:
512                 power1 |= 0x1;  /* VMID 50k */
513                 snd_soc_component_write(component, WM8510_POWER1, power1);
514                 break;
515 
516         case SND_SOC_BIAS_STANDBY:
517                 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
518 
519                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
520                         regcache_sync(wm8510->regmap);
521 
522                         /* Initial cap charge at VMID 5k */
523                         snd_soc_component_write(component, WM8510_POWER1, power1 | 0x3);
524                         mdelay(100);
525                 }
526 
527                 power1 |= 0x2;  /* VMID 500k */
528                 snd_soc_component_write(component, WM8510_POWER1, power1);
529                 break;
530 
531         case SND_SOC_BIAS_OFF:
532                 snd_soc_component_write(component, WM8510_POWER1, 0);
533                 snd_soc_component_write(component, WM8510_POWER2, 0);
534                 snd_soc_component_write(component, WM8510_POWER3, 0);
535                 break;
536         }
537 
538         return 0;
539 }
540 
541 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
542                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
543                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
544 
545 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
546         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
547 
548 static const struct snd_soc_dai_ops wm8510_dai_ops = {
549         .hw_params      = wm8510_pcm_hw_params,
550         .mute_stream    = wm8510_mute,
551         .set_fmt        = wm8510_set_dai_fmt,
552         .set_clkdiv     = wm8510_set_dai_clkdiv,
553         .set_pll        = wm8510_set_dai_pll,
554         .no_capture_mute = 1,
555 };
556 
557 static struct snd_soc_dai_driver wm8510_dai = {
558         .name = "wm8510-hifi",
559         .playback = {
560                 .stream_name = "Playback",
561                 .channels_min = 2,
562                 .channels_max = 2,
563                 .rates = WM8510_RATES,
564                 .formats = WM8510_FORMATS,},
565         .capture = {
566                 .stream_name = "Capture",
567                 .channels_min = 2,
568                 .channels_max = 2,
569                 .rates = WM8510_RATES,
570                 .formats = WM8510_FORMATS,},
571         .ops = &wm8510_dai_ops,
572         .symmetric_rates = 1,
573 };
574 
575 static int wm8510_probe(struct snd_soc_component *component)
576 {
577         wm8510_reset(component);
578 
579         return 0;
580 }
581 
582 static const struct snd_soc_component_driver soc_component_dev_wm8510 = {
583         .probe                  = wm8510_probe,
584         .set_bias_level         = wm8510_set_bias_level,
585         .controls               = wm8510_snd_controls,
586         .num_controls           = ARRAY_SIZE(wm8510_snd_controls),
587         .dapm_widgets           = wm8510_dapm_widgets,
588         .num_dapm_widgets       = ARRAY_SIZE(wm8510_dapm_widgets),
589         .dapm_routes            = wm8510_dapm_routes,
590         .num_dapm_routes        = ARRAY_SIZE(wm8510_dapm_routes),
591         .suspend_bias_off       = 1,
592         .idle_bias_on           = 1,
593         .use_pmdown_time        = 1,
594         .endianness             = 1,
595         .non_legacy_dai_naming  = 1,
596 };
597 
598 static const struct of_device_id wm8510_of_match[] = {
599         { .compatible = "wlf,wm8510" },
600         { },
601 };
602 MODULE_DEVICE_TABLE(of, wm8510_of_match);
603 
604 static const struct regmap_config wm8510_regmap = {
605         .reg_bits = 7,
606         .val_bits = 9,
607         .max_register = WM8510_MONOMIX,
608 
609         .reg_defaults = wm8510_reg_defaults,
610         .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
611         .cache_type = REGCACHE_RBTREE,
612 
613         .volatile_reg = wm8510_volatile,
614 };
615 
616 #if defined(CONFIG_SPI_MASTER)
617 static int wm8510_spi_probe(struct spi_device *spi)
618 {
619         struct wm8510_priv *wm8510;
620         int ret;
621 
622         wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
623                               GFP_KERNEL);
624         if (wm8510 == NULL)
625                 return -ENOMEM;
626 
627         wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
628         if (IS_ERR(wm8510->regmap))
629                 return PTR_ERR(wm8510->regmap);
630 
631         spi_set_drvdata(spi, wm8510);
632 
633         ret = devm_snd_soc_register_component(&spi->dev,
634                         &soc_component_dev_wm8510, &wm8510_dai, 1);
635 
636         return ret;
637 }
638 
639 static struct spi_driver wm8510_spi_driver = {
640         .driver = {
641                 .name   = "wm8510",
642                 .of_match_table = wm8510_of_match,
643         },
644         .probe          = wm8510_spi_probe,
645 };
646 #endif /* CONFIG_SPI_MASTER */
647 
648 #if IS_ENABLED(CONFIG_I2C)
649 static int wm8510_i2c_probe(struct i2c_client *i2c,
650                             const struct i2c_device_id *id)
651 {
652         struct wm8510_priv *wm8510;
653         int ret;
654 
655         wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
656                               GFP_KERNEL);
657         if (wm8510 == NULL)
658                 return -ENOMEM;
659 
660         wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
661         if (IS_ERR(wm8510->regmap))
662                 return PTR_ERR(wm8510->regmap);
663 
664         i2c_set_clientdata(i2c, wm8510);
665 
666         ret = devm_snd_soc_register_component(&i2c->dev,
667                         &soc_component_dev_wm8510, &wm8510_dai, 1);
668 
669         return ret;
670 }
671 
672 static const struct i2c_device_id wm8510_i2c_id[] = {
673         { "wm8510", 0 },
674         { }
675 };
676 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
677 
678 static struct i2c_driver wm8510_i2c_driver = {
679         .driver = {
680                 .name = "wm8510",
681                 .of_match_table = wm8510_of_match,
682         },
683         .probe =    wm8510_i2c_probe,
684         .id_table = wm8510_i2c_id,
685 };
686 #endif
687 
688 static int __init wm8510_modinit(void)
689 {
690         int ret = 0;
691 #if IS_ENABLED(CONFIG_I2C)
692         ret = i2c_add_driver(&wm8510_i2c_driver);
693         if (ret != 0) {
694                 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
695                        ret);
696         }
697 #endif
698 #if defined(CONFIG_SPI_MASTER)
699         ret = spi_register_driver(&wm8510_spi_driver);
700         if (ret != 0) {
701                 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
702                        ret);
703         }
704 #endif
705         return ret;
706 }
707 module_init(wm8510_modinit);
708 
709 static void __exit wm8510_exit(void)
710 {
711 #if IS_ENABLED(CONFIG_I2C)
712         i2c_del_driver(&wm8510_i2c_driver);
713 #endif
714 #if defined(CONFIG_SPI_MASTER)
715         spi_unregister_driver(&wm8510_spi_driver);
716 #endif
717 }
718 module_exit(wm8510_exit);
719 
720 MODULE_DESCRIPTION("ASoC WM8510 driver");
721 MODULE_AUTHOR("Liam Girdwood");
722 MODULE_LICENSE("GPL");
723 

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