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10#include <linux/module.h>
11#include <linux/init.h>
12#include <linux/i2c.h>
13#include <linux/spi/spi.h>
14#include <linux/slab.h>
15#include <sound/core.h>
16#include <sound/pcm.h>
17#include <sound/pcm_params.h>
18#include <sound/soc.h>
19#include <sound/tlv.h>
20#include <linux/platform_data/adau17x1.h>
21
22#include "adau17x1.h"
23#include "adau1781.h"
24
25#define ADAU1781_DMIC_BEEP_CTRL 0x4008
26#define ADAU1781_LEFT_PGA 0x400e
27#define ADAU1781_RIGHT_PGA 0x400f
28#define ADAU1781_LEFT_PLAYBACK_MIXER 0x401c
29#define ADAU1781_RIGHT_PLAYBACK_MIXER 0x401e
30#define ADAU1781_MONO_PLAYBACK_MIXER 0x401f
31#define ADAU1781_LEFT_LINEOUT 0x4025
32#define ADAU1781_RIGHT_LINEOUT 0x4026
33#define ADAU1781_SPEAKER 0x4027
34#define ADAU1781_BEEP_ZC 0x4028
35#define ADAU1781_DEJITTER 0x4032
36#define ADAU1781_DIG_PWDN0 0x4080
37#define ADAU1781_DIG_PWDN1 0x4081
38
39#define ADAU1781_INPUT_DIFFERNTIAL BIT(3)
40
41#define ADAU1381_FIRMWARE "adau1381.bin"
42#define ADAU1781_FIRMWARE "adau1781.bin"
43
44static const struct reg_default adau1781_reg_defaults[] = {
45 { ADAU1781_DMIC_BEEP_CTRL, 0x00 },
46 { ADAU1781_LEFT_PGA, 0xc7 },
47 { ADAU1781_RIGHT_PGA, 0xc7 },
48 { ADAU1781_LEFT_PLAYBACK_MIXER, 0x00 },
49 { ADAU1781_RIGHT_PLAYBACK_MIXER, 0x00 },
50 { ADAU1781_MONO_PLAYBACK_MIXER, 0x00 },
51 { ADAU1781_LEFT_LINEOUT, 0x00 },
52 { ADAU1781_RIGHT_LINEOUT, 0x00 },
53 { ADAU1781_SPEAKER, 0x00 },
54 { ADAU1781_BEEP_ZC, 0x19 },
55 { ADAU1781_DEJITTER, 0x60 },
56 { ADAU1781_DIG_PWDN1, 0x0c },
57 { ADAU1781_DIG_PWDN1, 0x00 },
58 { ADAU17X1_CLOCK_CONTROL, 0x00 },
59 { ADAU17X1_PLL_CONTROL, 0x00 },
60 { ADAU17X1_REC_POWER_MGMT, 0x00 },
61 { ADAU17X1_MICBIAS, 0x04 },
62 { ADAU17X1_SERIAL_PORT0, 0x00 },
63 { ADAU17X1_SERIAL_PORT1, 0x00 },
64 { ADAU17X1_CONVERTER0, 0x00 },
65 { ADAU17X1_CONVERTER1, 0x00 },
66 { ADAU17X1_LEFT_INPUT_DIGITAL_VOL, 0x00 },
67 { ADAU17X1_RIGHT_INPUT_DIGITAL_VOL, 0x00 },
68 { ADAU17X1_ADC_CONTROL, 0x00 },
69 { ADAU17X1_PLAY_POWER_MGMT, 0x00 },
70 { ADAU17X1_DAC_CONTROL0, 0x00 },
71 { ADAU17X1_DAC_CONTROL1, 0x00 },
72 { ADAU17X1_DAC_CONTROL2, 0x00 },
73 { ADAU17X1_SERIAL_PORT_PAD, 0x00 },
74 { ADAU17X1_CONTROL_PORT_PAD0, 0x00 },
75 { ADAU17X1_CONTROL_PORT_PAD1, 0x00 },
76 { ADAU17X1_DSP_SAMPLING_RATE, 0x01 },
77 { ADAU17X1_SERIAL_INPUT_ROUTE, 0x00 },
78 { ADAU17X1_SERIAL_OUTPUT_ROUTE, 0x00 },
79 { ADAU17X1_DSP_ENABLE, 0x00 },
80 { ADAU17X1_DSP_RUN, 0x00 },
81 { ADAU17X1_SERIAL_SAMPLING_RATE, 0x00 },
82};
83
84static const DECLARE_TLV_DB_SCALE(adau1781_speaker_tlv, 0, 200, 0);
85
86static const DECLARE_TLV_DB_RANGE(adau1781_pga_tlv,
87 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
88 2, 3, TLV_DB_SCALE_ITEM(1000, 400, 0),
89 4, 4, TLV_DB_SCALE_ITEM(1700, 0, 0),
90 5, 7, TLV_DB_SCALE_ITEM(2000, 600, 0)
91);
92
93static const DECLARE_TLV_DB_RANGE(adau1781_beep_tlv,
94 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
95 2, 3, TLV_DB_SCALE_ITEM(1000, 400, 0),
96 4, 4, TLV_DB_SCALE_ITEM(-2300, 0, 0),
97 5, 7, TLV_DB_SCALE_ITEM(2000, 600, 0)
98);
99
100static const DECLARE_TLV_DB_SCALE(adau1781_sidetone_tlv, -1800, 300, 1);
101
102static const char * const adau1781_speaker_bias_select_text[] = {
103 "Normal operation", "Power saving", "Enhanced performance",
104};
105
106static const char * const adau1781_bias_select_text[] = {
107 "Normal operation", "Extreme power saving", "Power saving",
108 "Enhanced performance",
109};
110
111static SOC_ENUM_SINGLE_DECL(adau1781_adc_bias_enum,
112 ADAU17X1_REC_POWER_MGMT, 3, adau1781_bias_select_text);
113static SOC_ENUM_SINGLE_DECL(adau1781_speaker_bias_enum,
114 ADAU17X1_PLAY_POWER_MGMT, 6, adau1781_speaker_bias_select_text);
115static SOC_ENUM_SINGLE_DECL(adau1781_dac_bias_enum,
116 ADAU17X1_PLAY_POWER_MGMT, 4, adau1781_bias_select_text);
117static SOC_ENUM_SINGLE_DECL(adau1781_playback_bias_enum,
118 ADAU17X1_PLAY_POWER_MGMT, 2, adau1781_bias_select_text);
119static SOC_ENUM_SINGLE_DECL(adau1781_capture_bias_enum,
120 ADAU17X1_REC_POWER_MGMT, 1, adau1781_bias_select_text);
121
122static const struct snd_kcontrol_new adau1781_controls[] = {
123 SOC_SINGLE_TLV("Beep Capture Volume", ADAU1781_DMIC_BEEP_CTRL, 0, 7, 0,
124 adau1781_beep_tlv),
125 SOC_DOUBLE_R_TLV("PGA Capture Volume", ADAU1781_LEFT_PGA,
126 ADAU1781_RIGHT_PGA, 5, 7, 0, adau1781_pga_tlv),
127 SOC_DOUBLE_R("PGA Capture Switch", ADAU1781_LEFT_PGA,
128 ADAU1781_RIGHT_PGA, 1, 1, 0),
129
130 SOC_DOUBLE_R("Lineout Playback Switch", ADAU1781_LEFT_LINEOUT,
131 ADAU1781_RIGHT_LINEOUT, 1, 1, 0),
132 SOC_SINGLE("Beep ZC Switch", ADAU1781_BEEP_ZC, 0, 1, 0),
133
134 SOC_SINGLE("Mono Playback Switch", ADAU1781_MONO_PLAYBACK_MIXER,
135 0, 1, 0),
136 SOC_SINGLE_TLV("Mono Playback Volume", ADAU1781_SPEAKER, 6, 3, 0,
137 adau1781_speaker_tlv),
138
139 SOC_ENUM("ADC Bias", adau1781_adc_bias_enum),
140 SOC_ENUM("DAC Bias", adau1781_dac_bias_enum),
141 SOC_ENUM("Capture Bias", adau1781_capture_bias_enum),
142 SOC_ENUM("Playback Bias", adau1781_playback_bias_enum),
143 SOC_ENUM("Speaker Bias", adau1781_speaker_bias_enum),
144};
145
146static const struct snd_kcontrol_new adau1781_beep_mixer_controls[] = {
147 SOC_DAPM_SINGLE("Beep Capture Switch", ADAU1781_DMIC_BEEP_CTRL,
148 3, 1, 0),
149};
150
151static const struct snd_kcontrol_new adau1781_left_mixer_controls[] = {
152 SOC_DAPM_SINGLE_AUTODISABLE("Switch",
153 ADAU1781_LEFT_PLAYBACK_MIXER, 5, 1, 0),
154 SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
155 ADAU1781_LEFT_PLAYBACK_MIXER, 1, 8, 0, adau1781_sidetone_tlv),
156};
157
158static const struct snd_kcontrol_new adau1781_right_mixer_controls[] = {
159 SOC_DAPM_SINGLE_AUTODISABLE("Switch",
160 ADAU1781_RIGHT_PLAYBACK_MIXER, 6, 1, 0),
161 SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
162 ADAU1781_LEFT_PLAYBACK_MIXER, 1, 8, 0, adau1781_sidetone_tlv),
163};
164
165static const struct snd_kcontrol_new adau1781_mono_mixer_controls[] = {
166 SOC_DAPM_SINGLE_AUTODISABLE("Left Switch",
167 ADAU1781_MONO_PLAYBACK_MIXER, 7, 1, 0),
168 SOC_DAPM_SINGLE_AUTODISABLE("Right Switch",
169 ADAU1781_MONO_PLAYBACK_MIXER, 6, 1, 0),
170 SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
171 ADAU1781_MONO_PLAYBACK_MIXER, 2, 8, 0, adau1781_sidetone_tlv),
172};
173
174static int adau1781_dejitter_fixup(struct snd_soc_dapm_widget *w,
175 struct snd_kcontrol *kcontrol, int event)
176{
177 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
178 struct adau *adau = snd_soc_codec_get_drvdata(codec);
179
180
181
182 regmap_write(adau->regmap, ADAU1781_DEJITTER, 0);
183 if (!adau->master)
184 regmap_write(adau->regmap, ADAU1781_DEJITTER, 5);
185
186 return 0;
187}
188
189static const struct snd_soc_dapm_widget adau1781_dapm_widgets[] = {
190 SND_SOC_DAPM_PGA("Left PGA", ADAU1781_LEFT_PGA, 0, 0, NULL, 0),
191 SND_SOC_DAPM_PGA("Right PGA", ADAU1781_RIGHT_PGA, 0, 0, NULL, 0),
192
193 SND_SOC_DAPM_OUT_DRV("Speaker", ADAU1781_SPEAKER, 0, 0, NULL, 0),
194
195 SOC_MIXER_NAMED_CTL_ARRAY("Beep Mixer", ADAU17X1_MICBIAS, 4, 0,
196 adau1781_beep_mixer_controls),
197
198 SOC_MIXER_ARRAY("Left Lineout Mixer", SND_SOC_NOPM, 0, 0,
199 adau1781_left_mixer_controls),
200 SOC_MIXER_ARRAY("Right Lineout Mixer", SND_SOC_NOPM, 0, 0,
201 adau1781_right_mixer_controls),
202 SOC_MIXER_ARRAY("Mono Mixer", SND_SOC_NOPM, 0, 0,
203 adau1781_mono_mixer_controls),
204
205 SND_SOC_DAPM_SUPPLY("Serial Input Routing", ADAU1781_DIG_PWDN0,
206 2, 0, NULL, 0),
207 SND_SOC_DAPM_SUPPLY("Serial Output Routing", ADAU1781_DIG_PWDN0,
208 3, 0, NULL, 0),
209 SND_SOC_DAPM_SUPPLY("Clock Domain Transfer", ADAU1781_DIG_PWDN0,
210 5, 0, NULL, 0),
211 SND_SOC_DAPM_SUPPLY("Serial Ports", ADAU1781_DIG_PWDN0, 4, 0, NULL, 0),
212 SND_SOC_DAPM_SUPPLY("ADC Engine", ADAU1781_DIG_PWDN0, 7, 0, NULL, 0),
213 SND_SOC_DAPM_SUPPLY("DAC Engine", ADAU1781_DIG_PWDN1, 0, 0, NULL, 0),
214 SND_SOC_DAPM_SUPPLY("Digital Mic", ADAU1781_DIG_PWDN1, 1, 0, NULL, 0),
215
216 SND_SOC_DAPM_SUPPLY("Sound Engine", ADAU1781_DIG_PWDN0, 0, 0, NULL, 0),
217 SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, ADAU1781_DIG_PWDN0, 1, 0, NULL, 0),
218
219 SND_SOC_DAPM_SUPPLY("Zero Crossing Detector", ADAU1781_DIG_PWDN1, 2, 0,
220 NULL, 0),
221
222 SND_SOC_DAPM_POST("Dejitter fixup", adau1781_dejitter_fixup),
223
224 SND_SOC_DAPM_INPUT("BEEP"),
225
226 SND_SOC_DAPM_OUTPUT("AOUTL"),
227 SND_SOC_DAPM_OUTPUT("AOUTR"),
228 SND_SOC_DAPM_OUTPUT("SP"),
229 SND_SOC_DAPM_INPUT("LMIC"),
230 SND_SOC_DAPM_INPUT("RMIC"),
231};
232
233static const struct snd_soc_dapm_route adau1781_dapm_routes[] = {
234 { "Left Lineout Mixer", NULL, "Left Playback Enable" },
235 { "Right Lineout Mixer", NULL, "Right Playback Enable" },
236
237 { "Left Lineout Mixer", "Beep Playback Volume", "Beep Mixer" },
238 { "Left Lineout Mixer", "Switch", "Left DAC" },
239
240 { "Right Lineout Mixer", "Beep Playback Volume", "Beep Mixer" },
241 { "Right Lineout Mixer", "Switch", "Right DAC" },
242
243 { "Mono Mixer", "Beep Playback Volume", "Beep Mixer" },
244 { "Mono Mixer", "Right Switch", "Right DAC" },
245 { "Mono Mixer", "Left Switch", "Left DAC" },
246 { "Speaker", NULL, "Mono Mixer" },
247
248 { "Mono Mixer", NULL, "SYSCLK" },
249 { "Left Lineout Mixer", NULL, "SYSCLK" },
250 { "Left Lineout Mixer", NULL, "SYSCLK" },
251
252 { "Beep Mixer", "Beep Capture Switch", "BEEP" },
253 { "Beep Mixer", NULL, "Zero Crossing Detector" },
254
255 { "Left DAC", NULL, "DAC Engine" },
256 { "Right DAC", NULL, "DAC Engine" },
257
258 { "Sound Engine", NULL, "SYSCLK" },
259 { "DSP", NULL, "Sound Engine" },
260
261 { "Left Decimator", NULL, "ADC Engine" },
262 { "Right Decimator", NULL, "ADC Engine" },
263
264 { "AIFCLK", NULL, "SYSCLK" },
265
266 { "Playback", NULL, "Serial Input Routing" },
267 { "Playback", NULL, "Serial Ports" },
268 { "Playback", NULL, "Clock Domain Transfer" },
269 { "Capture", NULL, "Serial Output Routing" },
270 { "Capture", NULL, "Serial Ports" },
271 { "Capture", NULL, "Clock Domain Transfer" },
272
273 { "AOUTL", NULL, "Left Lineout Mixer" },
274 { "AOUTR", NULL, "Right Lineout Mixer" },
275 { "SP", NULL, "Speaker" },
276};
277
278static const struct snd_soc_dapm_route adau1781_adc_dapm_routes[] = {
279 { "Left PGA", NULL, "LMIC" },
280 { "Right PGA", NULL, "RMIC" },
281
282 { "Left Decimator", NULL, "Left PGA" },
283 { "Right Decimator", NULL, "Right PGA" },
284};
285
286static const char * const adau1781_dmic_select_text[] = {
287 "DMIC1", "DMIC2",
288};
289
290static SOC_ENUM_SINGLE_VIRT_DECL(adau1781_dmic_select_enum,
291 adau1781_dmic_select_text);
292
293static const struct snd_kcontrol_new adau1781_dmic_mux =
294 SOC_DAPM_ENUM("DMIC Select", adau1781_dmic_select_enum);
295
296static const struct snd_soc_dapm_widget adau1781_dmic_dapm_widgets[] = {
297 SND_SOC_DAPM_MUX("DMIC Select", SND_SOC_NOPM, 0, 0, &adau1781_dmic_mux),
298
299 SND_SOC_DAPM_ADC("DMIC1", NULL, ADAU1781_DMIC_BEEP_CTRL, 4, 0),
300 SND_SOC_DAPM_ADC("DMIC2", NULL, ADAU1781_DMIC_BEEP_CTRL, 5, 0),
301};
302
303static const struct snd_soc_dapm_route adau1781_dmic_dapm_routes[] = {
304 { "DMIC1", NULL, "LMIC" },
305 { "DMIC2", NULL, "RMIC" },
306
307 { "DMIC1", NULL, "Digital Mic" },
308 { "DMIC2", NULL, "Digital Mic" },
309
310 { "DMIC Select", "DMIC1", "DMIC1" },
311 { "DMIC Select", "DMIC2", "DMIC2" },
312
313 { "Left Decimator", NULL, "DMIC Select" },
314 { "Right Decimator", NULL, "DMIC Select" },
315};
316
317static int adau1781_set_bias_level(struct snd_soc_codec *codec,
318 enum snd_soc_bias_level level)
319{
320 struct adau *adau = snd_soc_codec_get_drvdata(codec);
321
322 switch (level) {
323 case SND_SOC_BIAS_ON:
324 break;
325 case SND_SOC_BIAS_PREPARE:
326 break;
327 case SND_SOC_BIAS_STANDBY:
328 regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
329 ADAU17X1_CLOCK_CONTROL_SYSCLK_EN,
330 ADAU17X1_CLOCK_CONTROL_SYSCLK_EN);
331
332
333 regmap_update_bits(adau->regmap, ADAU1781_DIG_PWDN1, 0x8, 0x8);
334 break;
335 case SND_SOC_BIAS_OFF:
336 regmap_update_bits(adau->regmap, ADAU1781_DIG_PWDN1, 0xc, 0x0);
337 regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
338 ADAU17X1_CLOCK_CONTROL_SYSCLK_EN, 0);
339 break;
340 }
341
342 return 0;
343}
344
345static bool adau1781_readable_register(struct device *dev, unsigned int reg)
346{
347 switch (reg) {
348 case ADAU1781_DMIC_BEEP_CTRL:
349 case ADAU1781_LEFT_PGA:
350 case ADAU1781_RIGHT_PGA:
351 case ADAU1781_LEFT_PLAYBACK_MIXER:
352 case ADAU1781_RIGHT_PLAYBACK_MIXER:
353 case ADAU1781_MONO_PLAYBACK_MIXER:
354 case ADAU1781_LEFT_LINEOUT:
355 case ADAU1781_RIGHT_LINEOUT:
356 case ADAU1781_SPEAKER:
357 case ADAU1781_BEEP_ZC:
358 case ADAU1781_DEJITTER:
359 case ADAU1781_DIG_PWDN0:
360 case ADAU1781_DIG_PWDN1:
361 return true;
362 default:
363 break;
364 }
365
366 return adau17x1_readable_register(dev, reg);
367}
368
369static int adau1781_set_input_mode(struct adau *adau, unsigned int reg,
370 bool differential)
371{
372 unsigned int val;
373
374 if (differential)
375 val = ADAU1781_INPUT_DIFFERNTIAL;
376 else
377 val = 0;
378
379 return regmap_update_bits(adau->regmap, reg,
380 ADAU1781_INPUT_DIFFERNTIAL, val);
381}
382
383static int adau1781_codec_probe(struct snd_soc_codec *codec)
384{
385 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
386 struct adau1781_platform_data *pdata = dev_get_platdata(codec->dev);
387 struct adau *adau = snd_soc_codec_get_drvdata(codec);
388 int ret;
389
390 ret = adau17x1_add_widgets(codec);
391 if (ret)
392 return ret;
393
394 if (pdata) {
395 ret = adau1781_set_input_mode(adau, ADAU1781_LEFT_PGA,
396 pdata->left_input_differential);
397 if (ret)
398 return ret;
399 ret = adau1781_set_input_mode(adau, ADAU1781_RIGHT_PGA,
400 pdata->right_input_differential);
401 if (ret)
402 return ret;
403 }
404
405 if (pdata && pdata->use_dmic) {
406 ret = snd_soc_dapm_new_controls(dapm,
407 adau1781_dmic_dapm_widgets,
408 ARRAY_SIZE(adau1781_dmic_dapm_widgets));
409 if (ret)
410 return ret;
411 ret = snd_soc_dapm_add_routes(dapm, adau1781_dmic_dapm_routes,
412 ARRAY_SIZE(adau1781_dmic_dapm_routes));
413 if (ret)
414 return ret;
415 } else {
416 ret = snd_soc_dapm_add_routes(dapm, adau1781_adc_dapm_routes,
417 ARRAY_SIZE(adau1781_adc_dapm_routes));
418 if (ret)
419 return ret;
420 }
421
422 ret = adau17x1_add_routes(codec);
423 if (ret < 0)
424 return ret;
425
426 return 0;
427}
428
429static const struct snd_soc_codec_driver adau1781_codec_driver = {
430 .probe = adau1781_codec_probe,
431 .resume = adau17x1_resume,
432 .set_bias_level = adau1781_set_bias_level,
433 .suspend_bias_off = true,
434
435 .component_driver = {
436 .controls = adau1781_controls,
437 .num_controls = ARRAY_SIZE(adau1781_controls),
438 .dapm_widgets = adau1781_dapm_widgets,
439 .num_dapm_widgets = ARRAY_SIZE(adau1781_dapm_widgets),
440 .dapm_routes = adau1781_dapm_routes,
441 .num_dapm_routes = ARRAY_SIZE(adau1781_dapm_routes),
442 },
443};
444
445#define ADAU1781_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
446 SNDRV_PCM_FMTBIT_S32_LE)
447
448static struct snd_soc_dai_driver adau1781_dai_driver = {
449 .name = "adau-hifi",
450 .playback = {
451 .stream_name = "Playback",
452 .channels_min = 2,
453 .channels_max = 8,
454 .rates = SNDRV_PCM_RATE_8000_96000,
455 .formats = ADAU1781_FORMATS,
456 },
457 .capture = {
458 .stream_name = "Capture",
459 .channels_min = 2,
460 .channels_max = 8,
461 .rates = SNDRV_PCM_RATE_8000_96000,
462 .formats = ADAU1781_FORMATS,
463 },
464 .ops = &adau17x1_dai_ops,
465};
466
467const struct regmap_config adau1781_regmap_config = {
468 .val_bits = 8,
469 .reg_bits = 16,
470 .max_register = 0x40f8,
471 .reg_defaults = adau1781_reg_defaults,
472 .num_reg_defaults = ARRAY_SIZE(adau1781_reg_defaults),
473 .readable_reg = adau1781_readable_register,
474 .volatile_reg = adau17x1_volatile_register,
475 .precious_reg = adau17x1_precious_register,
476 .cache_type = REGCACHE_RBTREE,
477};
478EXPORT_SYMBOL_GPL(adau1781_regmap_config);
479
480int adau1781_probe(struct device *dev, struct regmap *regmap,
481 enum adau17x1_type type, void (*switch_mode)(struct device *dev))
482{
483 const char *firmware_name;
484 int ret;
485
486 switch (type) {
487 case ADAU1381:
488 firmware_name = ADAU1381_FIRMWARE;
489 break;
490 case ADAU1781:
491 firmware_name = ADAU1781_FIRMWARE;
492 break;
493 default:
494 return -EINVAL;
495 }
496
497 ret = adau17x1_probe(dev, regmap, type, switch_mode, firmware_name);
498 if (ret)
499 return ret;
500
501 return snd_soc_register_codec(dev, &adau1781_codec_driver,
502 &adau1781_dai_driver, 1);
503}
504EXPORT_SYMBOL_GPL(adau1781_probe);
505
506MODULE_DESCRIPTION("ASoC ADAU1381/ADAU1781 driver");
507MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
508MODULE_LICENSE("GPL");
509
