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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
34
35
36
37static 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
96static 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
112struct wm8510_priv {
113 struct regmap *regmap;
114};
115
116static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
117static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
118static const char *wm8510_alc[] = { "ALC", "Limiter" };
119
120static const struct soc_enum wm8510_enum[] = {
121 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding),
122 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding),
123 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
124 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
125};
126
127static const struct snd_kcontrol_new wm8510_snd_controls[] = {
128
129SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
130
131SOC_ENUM("DAC Companding", wm8510_enum[1]),
132SOC_ENUM("ADC Companding", wm8510_enum[0]),
133
134SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
135SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
136
137SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
138
139SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
140SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
141SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
142
143SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
144
145SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
146SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
147SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
148
149SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
150SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
151
152SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
153SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
154SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
155
156SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
157SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
158SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
159
160SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
161SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
162SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
163
164SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
165SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
166
167SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
168SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
169
170SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
171SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
172SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
173SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
174
175SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
176SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
177};
178
179
180static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
181SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
182SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
183SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
184};
185
186
187static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
188SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
189SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
190SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
191};
192
193static const struct snd_kcontrol_new wm8510_boost_controls[] = {
194SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
195SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
196SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
197};
198
199static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
200SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
201SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
202SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
203};
204
205static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
206SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
207 &wm8510_speaker_mixer_controls[0],
208 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
209SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
210 &wm8510_mono_mixer_controls[0],
211 ARRAY_SIZE(wm8510_mono_mixer_controls)),
212SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
213SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
214SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
215SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
216SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
217SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
218
219SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
220 &wm8510_micpga_controls[0],
221 ARRAY_SIZE(wm8510_micpga_controls)),
222SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
223 &wm8510_boost_controls[0],
224 ARRAY_SIZE(wm8510_boost_controls)),
225
226SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
227
228SND_SOC_DAPM_INPUT("MICN"),
229SND_SOC_DAPM_INPUT("MICP"),
230SND_SOC_DAPM_INPUT("AUX"),
231SND_SOC_DAPM_OUTPUT("MONOOUT"),
232SND_SOC_DAPM_OUTPUT("SPKOUTP"),
233SND_SOC_DAPM_OUTPUT("SPKOUTN"),
234};
235
236static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
237
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
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
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
256 {"Mic PGA", "MICN Switch", "MICN"},
257 {"Mic PGA", "MICP Switch", "MICP"},
258 { "Mic PGA", "AUX Switch", "Aux Input" },
259
260
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
268struct pll_ {
269 unsigned int pre_div:4;
270 unsigned int n:4;
271 unsigned int k;
272};
273
274static struct pll_ pll_div;
275
276
277
278#define FIXED_PLL_SIZE ((1 << 24) * 10)
279
280static 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
307 if ((K % 10) >= 5)
308 K += 5;
309
310
311 K /= 10;
312
313 pll_div.k = K;
314}
315
316static 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
324 reg = snd_soc_read(codec, WM8510_CLOCK);
325 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
326
327
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
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
351
352static 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
386static 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
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
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
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
443static 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
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
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
493static 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
506static 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;
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 (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
523 regcache_sync(wm8510->regmap);
524
525
526 snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
527 mdelay(100);
528 }
529
530 power1 |= 0x2;
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 return 0;
542}
543
544#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
545 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
546 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
547
548#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
549 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
550
551static const struct snd_soc_dai_ops wm8510_dai_ops = {
552 .hw_params = wm8510_pcm_hw_params,
553 .digital_mute = wm8510_mute,
554 .set_fmt = wm8510_set_dai_fmt,
555 .set_clkdiv = wm8510_set_dai_clkdiv,
556 .set_pll = wm8510_set_dai_pll,
557};
558
559static struct snd_soc_dai_driver wm8510_dai = {
560 .name = "wm8510-hifi",
561 .playback = {
562 .stream_name = "Playback",
563 .channels_min = 2,
564 .channels_max = 2,
565 .rates = WM8510_RATES,
566 .formats = WM8510_FORMATS,},
567 .capture = {
568 .stream_name = "Capture",
569 .channels_min = 2,
570 .channels_max = 2,
571 .rates = WM8510_RATES,
572 .formats = WM8510_FORMATS,},
573 .ops = &wm8510_dai_ops,
574 .symmetric_rates = 1,
575};
576
577static int wm8510_probe(struct snd_soc_codec *codec)
578{
579 wm8510_reset(codec);
580
581 return 0;
582}
583
584static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
585 .probe = wm8510_probe,
586 .set_bias_level = wm8510_set_bias_level,
587 .suspend_bias_off = true,
588
589 .controls = wm8510_snd_controls,
590 .num_controls = ARRAY_SIZE(wm8510_snd_controls),
591 .dapm_widgets = wm8510_dapm_widgets,
592 .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
593 .dapm_routes = wm8510_dapm_routes,
594 .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
595};
596
597static const struct of_device_id wm8510_of_match[] = {
598 { .compatible = "wlf,wm8510" },
599 { },
600};
601MODULE_DEVICE_TABLE(of, wm8510_of_match);
602
603static const struct regmap_config wm8510_regmap = {
604 .reg_bits = 7,
605 .val_bits = 9,
606 .max_register = WM8510_MONOMIX,
607
608 .reg_defaults = wm8510_reg_defaults,
609 .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
610 .cache_type = REGCACHE_RBTREE,
611
612 .volatile_reg = wm8510_volatile,
613};
614
615#if defined(CONFIG_SPI_MASTER)
616static int wm8510_spi_probe(struct spi_device *spi)
617{
618 struct wm8510_priv *wm8510;
619 int ret;
620
621 wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
622 GFP_KERNEL);
623 if (wm8510 == NULL)
624 return -ENOMEM;
625
626 wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
627 if (IS_ERR(wm8510->regmap))
628 return PTR_ERR(wm8510->regmap);
629
630 spi_set_drvdata(spi, wm8510);
631
632 ret = snd_soc_register_codec(&spi->dev,
633 &soc_codec_dev_wm8510, &wm8510_dai, 1);
634
635 return ret;
636}
637
638static int wm8510_spi_remove(struct spi_device *spi)
639{
640 snd_soc_unregister_codec(&spi->dev);
641 return 0;
642}
643
644static struct spi_driver wm8510_spi_driver = {
645 .driver = {
646 .name = "wm8510",
647 .of_match_table = wm8510_of_match,
648 },
649 .probe = wm8510_spi_probe,
650 .remove = wm8510_spi_remove,
651};
652#endif
653
654#if IS_ENABLED(CONFIG_I2C)
655static int wm8510_i2c_probe(struct i2c_client *i2c,
656 const struct i2c_device_id *id)
657{
658 struct wm8510_priv *wm8510;
659 int ret;
660
661 wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
662 GFP_KERNEL);
663 if (wm8510 == NULL)
664 return -ENOMEM;
665
666 wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
667 if (IS_ERR(wm8510->regmap))
668 return PTR_ERR(wm8510->regmap);
669
670 i2c_set_clientdata(i2c, wm8510);
671
672 ret = snd_soc_register_codec(&i2c->dev,
673 &soc_codec_dev_wm8510, &wm8510_dai, 1);
674
675 return ret;
676}
677
678static int wm8510_i2c_remove(struct i2c_client *client)
679{
680 snd_soc_unregister_codec(&client->dev);
681 return 0;
682}
683
684static const struct i2c_device_id wm8510_i2c_id[] = {
685 { "wm8510", 0 },
686 { }
687};
688MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
689
690static struct i2c_driver wm8510_i2c_driver = {
691 .driver = {
692 .name = "wm8510",
693 .of_match_table = wm8510_of_match,
694 },
695 .probe = wm8510_i2c_probe,
696 .remove = wm8510_i2c_remove,
697 .id_table = wm8510_i2c_id,
698};
699#endif
700
701static int __init wm8510_modinit(void)
702{
703 int ret = 0;
704#if IS_ENABLED(CONFIG_I2C)
705 ret = i2c_add_driver(&wm8510_i2c_driver);
706 if (ret != 0) {
707 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
708 ret);
709 }
710#endif
711#if defined(CONFIG_SPI_MASTER)
712 ret = spi_register_driver(&wm8510_spi_driver);
713 if (ret != 0) {
714 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
715 ret);
716 }
717#endif
718 return ret;
719}
720module_init(wm8510_modinit);
721
722static void __exit wm8510_exit(void)
723{
724#if IS_ENABLED(CONFIG_I2C)
725 i2c_del_driver(&wm8510_i2c_driver);
726#endif
727#if defined(CONFIG_SPI_MASTER)
728 spi_unregister_driver(&wm8510_spi_driver);
729#endif
730}
731module_exit(wm8510_exit);
732
733MODULE_DESCRIPTION("ASoC WM8510 driver");
734MODULE_AUTHOR("Liam Girdwood");
735MODULE_LICENSE("GPL");
736
