xref: /linux/sound/soc/codecs/adau1781.c (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
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 	codec->dapm.bias_level = level;
343 	return 0;
344 }
345 
346 static bool adau1781_readable_register(struct device *dev, unsigned int reg)
347 {
348 	switch (reg) {
349 	case ADAU1781_DMIC_BEEP_CTRL:
350 	case ADAU1781_LEFT_PGA:
351 	case ADAU1781_RIGHT_PGA:
352 	case ADAU1781_LEFT_PLAYBACK_MIXER:
353 	case ADAU1781_RIGHT_PLAYBACK_MIXER:
354 	case ADAU1781_MONO_PLAYBACK_MIXER:
355 	case ADAU1781_LEFT_LINEOUT:
356 	case ADAU1781_RIGHT_LINEOUT:
357 	case ADAU1781_SPEAKER:
358 	case ADAU1781_BEEP_ZC:
359 	case ADAU1781_DEJITTER:
360 	case ADAU1781_DIG_PWDN0:
361 	case ADAU1781_DIG_PWDN1:
362 		return true;
363 	default:
364 		break;
365 	}
366 
367 	return adau17x1_readable_register(dev, reg);
368 }
369 
370 static int adau1781_set_input_mode(struct adau *adau, unsigned int reg,
371 	bool differential)
372 {
373 	unsigned int val;
374 
375 	if (differential)
376 		val = ADAU1781_INPUT_DIFFERNTIAL;
377 	else
378 		val = 0;
379 
380 	return regmap_update_bits(adau->regmap, reg,
381 		ADAU1781_INPUT_DIFFERNTIAL, val);
382 }
383 
384 static int adau1781_codec_probe(struct snd_soc_codec *codec)
385 {
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(&codec->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(&codec->dapm,
412 			adau1781_dmic_dapm_routes,
413 			ARRAY_SIZE(adau1781_dmic_dapm_routes));
414 		if (ret)
415 			return ret;
416 	} else {
417 		ret = snd_soc_dapm_add_routes(&codec->dapm,
418 			adau1781_adc_dapm_routes,
419 			ARRAY_SIZE(adau1781_adc_dapm_routes));
420 		if (ret)
421 			return ret;
422 	}
423 
424 	ret = adau17x1_add_routes(codec);
425 	if (ret < 0)
426 		return ret;
427 
428 	return 0;
429 }
430 
431 static const struct snd_soc_codec_driver adau1781_codec_driver = {
432 	.probe = adau1781_codec_probe,
433 	.resume = adau17x1_resume,
434 	.set_bias_level = adau1781_set_bias_level,
435 	.suspend_bias_off = true,
436 
437 	.controls = adau1781_controls,
438 	.num_controls = ARRAY_SIZE(adau1781_controls),
439 	.dapm_widgets = adau1781_dapm_widgets,
440 	.num_dapm_widgets = ARRAY_SIZE(adau1781_dapm_widgets),
441 	.dapm_routes = adau1781_dapm_routes,
442 	.num_dapm_routes = ARRAY_SIZE(adau1781_dapm_routes),
443 };
444 
445 #define ADAU1781_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
446 	SNDRV_PCM_FMTBIT_S32_LE)
447 
448 static 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 
467 const 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 };
478 EXPORT_SYMBOL_GPL(adau1781_regmap_config);
479 
480 int 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 }
504 EXPORT_SYMBOL_GPL(adau1781_probe);
505 
506 MODULE_DESCRIPTION("ASoC ADAU1381/ADAU1781 driver");
507 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
508 MODULE_LICENSE("GPL");
509