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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
31
32
33
34static 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
93static 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
109struct wm8510_priv {
110 struct regmap *regmap;
111};
112
113static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
114static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
115static const char *wm8510_alc[] = { "ALC", "Limiter" };
116
117static const struct soc_enum wm8510_enum[] = {
118 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding),
119 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding),
120 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
121 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
122};
123
124static const struct snd_kcontrol_new wm8510_snd_controls[] = {
125
126SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
127
128SOC_ENUM("DAC Companding", wm8510_enum[1]),
129SOC_ENUM("ADC Companding", wm8510_enum[0]),
130
131SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
132SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
133
134SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
135
136SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
137SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
138SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
139
140SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
141
142SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
143SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
144SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
145
146SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
147SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
148
149SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
150SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
151SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
152
153SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
154SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
155SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
156
157SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
158SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
159SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
160
161SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
162SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
163
164SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
165SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
166
167SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
168SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
169SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
170SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
171
172SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
173SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
174};
175
176
177static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
178SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
179SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
180SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
181};
182
183
184static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
185SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
186SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
187SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
188};
189
190static const struct snd_kcontrol_new wm8510_boost_controls[] = {
191SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
192SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
193SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
194};
195
196static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
197SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
198SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
199SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
200};
201
202static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
203SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
204 &wm8510_speaker_mixer_controls[0],
205 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
206SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
207 &wm8510_mono_mixer_controls[0],
208 ARRAY_SIZE(wm8510_mono_mixer_controls)),
209SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
210SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
211SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
212SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
213SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
214SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
215
216SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
217 &wm8510_micpga_controls[0],
218 ARRAY_SIZE(wm8510_micpga_controls)),
219SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
220 &wm8510_boost_controls[0],
221 ARRAY_SIZE(wm8510_boost_controls)),
222
223SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
224
225SND_SOC_DAPM_INPUT("MICN"),
226SND_SOC_DAPM_INPUT("MICP"),
227SND_SOC_DAPM_INPUT("AUX"),
228SND_SOC_DAPM_OUTPUT("MONOOUT"),
229SND_SOC_DAPM_OUTPUT("SPKOUTP"),
230SND_SOC_DAPM_OUTPUT("SPKOUTN"),
231};
232
233static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
234
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
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
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
253 {"Mic PGA", "MICN Switch", "MICN"},
254 {"Mic PGA", "MICP Switch", "MICP"},
255 { "Mic PGA", "AUX Switch", "Aux Input" },
256
257
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
265struct pll_ {
266 unsigned int pre_div:4;
267 unsigned int n:4;
268 unsigned int k;
269};
270
271static struct pll_ pll_div;
272
273
274
275#define FIXED_PLL_SIZE ((1 << 24) * 10)
276
277static 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
304 if ((K % 10) >= 5)
305 K += 5;
306
307
308 K /= 10;
309
310 pll_div.k = K;
311}
312
313static 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
321 reg = snd_soc_component_read(component, WM8510_CLOCK);
322 snd_soc_component_write(component, WM8510_CLOCK, reg & 0x0ff);
323
324
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
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
348
349static 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
383static 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
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
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
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
440static 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
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
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
490static 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
503static 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;
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
523 snd_soc_component_write(component, WM8510_POWER1, power1 | 0x3);
524 mdelay(100);
525 }
526
527 power1 |= 0x2;
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
548static 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
557static 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_rate = 1,
573};
574
575static int wm8510_probe(struct snd_soc_component *component)
576{
577 wm8510_reset(component);
578
579 return 0;
580}
581
582static 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
598static const struct of_device_id wm8510_of_match[] = {
599 { .compatible = "wlf,wm8510" },
600 { },
601};
602MODULE_DEVICE_TABLE(of, wm8510_of_match);
603
604static 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)
617static 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
639static 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
647
648#if IS_ENABLED(CONFIG_I2C)
649static 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
672static const struct i2c_device_id wm8510_i2c_id[] = {
673 { "wm8510", 0 },
674 { }
675};
676MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
677
678static 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
688static 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}
707module_init(wm8510_modinit);
708
709static 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}
718module_exit(wm8510_exit);
719
720MODULE_DESCRIPTION("ASoC WM8510 driver");
721MODULE_AUTHOR("Liam Girdwood");
722MODULE_LICENSE("GPL");
723
