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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/adau1781.c

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  1 /*
  2  * Driver for ADAU1781/ADAU1781 codec
  3  *
  4  * Copyright 2011-2013 Analog Devices Inc.
  5  * Author: Lars-Peter Clausen <lars@metafoo.de>
  6  *
  7  * Licensed under the GPL-2 or later.
  8  */
  9 
 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 
 44 static 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 
 84 static const DECLARE_TLV_DB_SCALE(adau1781_speaker_tlv, 0, 200, 0);
 85 
 86 static 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 
 93 static 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 
100 static const DECLARE_TLV_DB_SCALE(adau1781_sidetone_tlv, -1800, 300, 1);
101 
102 static const char * const adau1781_speaker_bias_select_text[] = {
103         "Normal operation", "Power saving", "Enhanced performance",
104 };
105 
106 static const char * const adau1781_bias_select_text[] = {
107         "Normal operation", "Extreme power saving", "Power saving",
108         "Enhanced performance",
109 };
110 
111 static SOC_ENUM_SINGLE_DECL(adau1781_adc_bias_enum,
112                 ADAU17X1_REC_POWER_MGMT, 3, adau1781_bias_select_text);
113 static SOC_ENUM_SINGLE_DECL(adau1781_speaker_bias_enum,
114                 ADAU17X1_PLAY_POWER_MGMT, 6, adau1781_speaker_bias_select_text);
115 static SOC_ENUM_SINGLE_DECL(adau1781_dac_bias_enum,
116                 ADAU17X1_PLAY_POWER_MGMT, 4, adau1781_bias_select_text);
117 static SOC_ENUM_SINGLE_DECL(adau1781_playback_bias_enum,
118                 ADAU17X1_PLAY_POWER_MGMT, 2, adau1781_bias_select_text);
119 static SOC_ENUM_SINGLE_DECL(adau1781_capture_bias_enum,
120                 ADAU17X1_REC_POWER_MGMT, 1, adau1781_bias_select_text);
121 
122 static 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 
146 static 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 
151 static 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 
158 static 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 
165 static 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 
174 static 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         /* After any power changes have been made the dejitter circuit
181          * has to be reinitialized. */
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 
189 static 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 
233 static 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 
278 static 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 
286 static const char * const adau1781_dmic_select_text[] = {
287         "DMIC1", "DMIC2",
288 };
289 
290 static SOC_ENUM_SINGLE_VIRT_DECL(adau1781_dmic_select_enum,
291         adau1781_dmic_select_text);
292 
293 static const struct snd_kcontrol_new adau1781_dmic_mux =
294         SOC_DAPM_ENUM("DMIC Select", adau1781_dmic_select_enum);
295 
296 static 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 
303 static 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 
317 static 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                 /* Precharge */
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 
345 static 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 
369 static 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 
383 static 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 
429 static 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         .controls = adau1781_controls,
436         .num_controls = ARRAY_SIZE(adau1781_controls),
437         .dapm_widgets = adau1781_dapm_widgets,
438         .num_dapm_widgets = ARRAY_SIZE(adau1781_dapm_widgets),
439         .dapm_routes = adau1781_dapm_routes,
440         .num_dapm_routes = ARRAY_SIZE(adau1781_dapm_routes),
441 };
442 
443 #define ADAU1781_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
444         SNDRV_PCM_FMTBIT_S32_LE)
445 
446 static struct snd_soc_dai_driver adau1781_dai_driver = {
447         .name = "adau-hifi",
448         .playback = {
449                 .stream_name = "Playback",
450                 .channels_min = 2,
451                 .channels_max = 8,
452                 .rates = SNDRV_PCM_RATE_8000_96000,
453                 .formats = ADAU1781_FORMATS,
454         },
455         .capture = {
456                 .stream_name = "Capture",
457                 .channels_min = 2,
458                 .channels_max = 8,
459                 .rates = SNDRV_PCM_RATE_8000_96000,
460                 .formats = ADAU1781_FORMATS,
461         },
462         .ops = &adau17x1_dai_ops,
463 };
464 
465 const struct regmap_config adau1781_regmap_config = {
466         .val_bits               = 8,
467         .reg_bits               = 16,
468         .max_register           = 0x40f8,
469         .reg_defaults           = adau1781_reg_defaults,
470         .num_reg_defaults       = ARRAY_SIZE(adau1781_reg_defaults),
471         .readable_reg           = adau1781_readable_register,
472         .volatile_reg           = adau17x1_volatile_register,
473         .precious_reg           = adau17x1_precious_register,
474         .cache_type             = REGCACHE_RBTREE,
475 };
476 EXPORT_SYMBOL_GPL(adau1781_regmap_config);
477 
478 int adau1781_probe(struct device *dev, struct regmap *regmap,
479         enum adau17x1_type type, void (*switch_mode)(struct device *dev))
480 {
481         const char *firmware_name;
482         int ret;
483 
484         switch (type) {
485         case ADAU1381:
486                 firmware_name = ADAU1381_FIRMWARE;
487                 break;
488         case ADAU1781:
489                 firmware_name = ADAU1781_FIRMWARE;
490                 break;
491         default:
492                 return -EINVAL;
493         }
494 
495         ret = adau17x1_probe(dev, regmap, type, switch_mode, firmware_name);
496         if (ret)
497                 return ret;
498 
499         return snd_soc_register_codec(dev, &adau1781_codec_driver,
500                 &adau1781_dai_driver, 1);
501 }
502 EXPORT_SYMBOL_GPL(adau1781_probe);
503 
504 MODULE_DESCRIPTION("ASoC ADAU1381/ADAU1781 driver");
505 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
506 MODULE_LICENSE("GPL");
507 

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