2 * ALSA SoC TLV320AIC23 codec driver
4 * Author: Arun KS, <arunks@mistralsolutions.com>
5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 * The AIC23 is a driver for a low power stereo audio
17 * The machine layer should disable unsupported inputs/outputs by
18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
26 #include <linux/i2c.h>
27 #include <linux/platform_device.h>
28 #include <sound/core.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
33 #include <sound/tlv.h>
34 #include <sound/initval.h>
36 #include "tlv320aic23.h"
38 #define AUDIO_NAME "tlv320aic23"
39 #define AIC23_VERSION "0.1"
41 struct tlv320aic23_srate_reg_info {
43 u8 control; /* SR3, SR2, SR1, SR0 and BOSR */
44 u8 divider; /* if 0 CLKIN = MCLK, if 1 CLKIN = MCLK/2 */
48 * AIC23 register cache
50 static const u16 tlv320aic23_reg[] = {
51 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */
52 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */
53 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */
54 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */
58 * read tlv320aic23 register cache
60 static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec
61 *codec, unsigned int reg)
63 u16 *cache = codec->reg_cache;
64 if (reg >= ARRAY_SIZE(tlv320aic23_reg))
70 * write tlv320aic23 register cache
72 static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec,
75 u16 *cache = codec->reg_cache;
76 if (reg >= ARRAY_SIZE(tlv320aic23_reg))
82 * write to the tlv320aic23 register space
84 static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,
90 /* TLV320AIC23 has 7 bit address and 9 bits of data
91 * so we need to switch one data bit into reg and rest
95 if ((reg < 0 || reg > 9) && (reg != 15)) {
96 printk(KERN_WARNING "%s Invalid register R%d\n", __func__, reg);
100 data = (reg << 1) | (value >> 8 & 0x01);
102 tlv320aic23_write_reg_cache(codec, reg, value);
104 if (codec->hw_write(codec->control_data, data,
105 (value & 0xff)) == 0)
108 printk(KERN_ERR "%s cannot write %03x to register R%d\n", __func__,
114 static const char *rec_src_text[] = { "Line", "Mic" };
115 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
117 static const struct soc_enum rec_src_enum =
118 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
120 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
121 SOC_DAPM_ENUM("Input Select", rec_src_enum);
123 static const struct soc_enum tlv320aic23_rec_src =
124 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
125 static const struct soc_enum tlv320aic23_deemph =
126 SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text);
128 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
129 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
130 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
132 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
133 struct snd_ctl_elem_value *ucontrol)
135 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
138 val = (ucontrol->value.integer.value[0] & 0x07);
140 /* linear conversion to userspace
147 val = (val >= 4) ? 4 : (3 - val);
149 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0);
150 tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6));
155 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
156 struct snd_ctl_elem_value *ucontrol)
158 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
161 val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0);
163 val = (val >= 4) ? 4 : (3 - val);
164 ucontrol->value.integer.value[0] = val;
169 #define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
170 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
171 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
172 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
173 .tlv.p = (tlv_array), \
174 .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\
175 .put = snd_soc_tlv320aic23_put_volsw, \
176 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
178 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
179 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
180 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
181 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
182 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
183 TLV320AIC23_RINVOL, 7, 1, 0),
184 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
185 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
186 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
187 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
188 SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG,
189 6, 4, 0, sidetone_vol_tlv),
190 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
193 /* add non dapm controls */
194 static int tlv320aic23_add_controls(struct snd_soc_codec *codec)
199 for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) {
200 err = snd_ctl_add(codec->card,
201 snd_soc_cnew(&tlv320aic23_snd_controls[i],
211 /* PGA Mixer controls for Line and Mic switch */
212 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
213 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
214 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
215 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
218 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
219 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
220 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
221 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
222 &tlv320aic23_rec_src_mux_controls),
223 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
224 &tlv320aic23_output_mixer_controls[0],
225 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
226 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
227 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
229 SND_SOC_DAPM_OUTPUT("LHPOUT"),
230 SND_SOC_DAPM_OUTPUT("RHPOUT"),
231 SND_SOC_DAPM_OUTPUT("LOUT"),
232 SND_SOC_DAPM_OUTPUT("ROUT"),
234 SND_SOC_DAPM_INPUT("LLINEIN"),
235 SND_SOC_DAPM_INPUT("RLINEIN"),
237 SND_SOC_DAPM_INPUT("MICIN"),
240 static const struct snd_soc_dapm_route intercon[] = {
242 {"Output Mixer", "Line Bypass Switch", "Line Input"},
243 {"Output Mixer", "Playback Switch", "DAC"},
244 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
247 {"RHPOUT", NULL, "Output Mixer"},
248 {"LHPOUT", NULL, "Output Mixer"},
249 {"LOUT", NULL, "Output Mixer"},
250 {"ROUT", NULL, "Output Mixer"},
253 {"Line Input", "NULL", "LLINEIN"},
254 {"Line Input", "NULL", "RLINEIN"},
256 {"Mic Input", "NULL", "MICIN"},
259 {"Capture Source", "Line", "Line Input"},
260 {"Capture Source", "Mic", "Mic Input"},
261 {"ADC", NULL, "Capture Source"},
265 /* tlv320aic23 related */
266 static const struct tlv320aic23_srate_reg_info srate_reg_info[] = {
267 {4000, 0x06, 1}, /* 4000 */
268 {8000, 0x06, 0}, /* 8000 */
269 {16000, 0x0C, 1}, /* 16000 */
270 {22050, 0x11, 1}, /* 22050 */
271 {24000, 0x00, 1}, /* 24000 */
272 {32000, 0x0C, 0}, /* 32000 */
273 {44100, 0x11, 0}, /* 44100 */
274 {48000, 0x00, 0}, /* 48000 */
275 {88200, 0x1F, 0}, /* 88200 */
276 {96000, 0x0E, 0}, /* 96000 */
279 static int tlv320aic23_add_widgets(struct snd_soc_codec *codec)
281 snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
282 ARRAY_SIZE(tlv320aic23_dapm_widgets));
284 /* set up audio path interconnects */
285 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
287 snd_soc_dapm_new_widgets(codec);
291 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
292 struct snd_pcm_hw_params *params)
294 struct snd_soc_pcm_runtime *rtd = substream->private_data;
295 struct snd_soc_device *socdev = rtd->socdev;
296 struct snd_soc_codec *codec = socdev->codec;
301 tlv320aic23_read_reg_cache(codec,
302 TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
304 /* Search for the right sample rate */
305 /* Verify what happens if the rate is not supported
306 * now it goes to 96Khz */
307 while ((srate_reg_info[count].sample_rate != params_rate(params)) &&
308 (count < ARRAY_SIZE(srate_reg_info))) {
312 data = (srate_reg_info[count].divider << TLV320AIC23_CLKIN_SHIFT) |
313 (srate_reg_info[count]. control << TLV320AIC23_BOSR_SHIFT) |
314 TLV320AIC23_USB_CLK_ON;
316 tlv320aic23_write(codec, TLV320AIC23_SRATE, data);
318 switch (params_format(params)) {
319 case SNDRV_PCM_FORMAT_S16_LE:
321 case SNDRV_PCM_FORMAT_S20_3LE:
322 iface_reg |= (0x01 << 2);
324 case SNDRV_PCM_FORMAT_S24_LE:
325 iface_reg |= (0x02 << 2);
327 case SNDRV_PCM_FORMAT_S32_LE:
328 iface_reg |= (0x03 << 2);
331 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
336 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream)
338 struct snd_soc_pcm_runtime *rtd = substream->private_data;
339 struct snd_soc_device *socdev = rtd->socdev;
340 struct snd_soc_codec *codec = socdev->codec;
343 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
348 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream)
350 struct snd_soc_pcm_runtime *rtd = substream->private_data;
351 struct snd_soc_device *socdev = rtd->socdev;
352 struct snd_soc_codec *codec = socdev->codec;
355 if (!codec->active) {
357 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
361 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
363 struct snd_soc_codec *codec = dai->codec;
366 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
368 reg |= TLV320AIC23_DACM_MUTE;
371 reg &= ~TLV320AIC23_DACM_MUTE;
373 tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);
378 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
381 struct snd_soc_codec *codec = codec_dai->codec;
385 tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
387 /* set master/slave audio interface */
388 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
389 case SND_SOC_DAIFMT_CBM_CFM:
390 iface_reg |= TLV320AIC23_MS_MASTER;
392 case SND_SOC_DAIFMT_CBS_CFS:
399 /* interface format */
400 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
401 case SND_SOC_DAIFMT_I2S:
402 iface_reg |= TLV320AIC23_FOR_I2S;
404 case SND_SOC_DAIFMT_DSP_A:
405 iface_reg |= TLV320AIC23_FOR_DSP;
407 case SND_SOC_DAIFMT_RIGHT_J:
409 case SND_SOC_DAIFMT_LEFT_J:
410 iface_reg |= TLV320AIC23_FOR_LJUST;
417 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
422 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
423 int clk_id, unsigned int freq, int dir)
425 struct snd_soc_codec *codec = codec_dai->codec;
434 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
435 enum snd_soc_bias_level level)
437 u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;
440 case SND_SOC_BIAS_ON:
441 /* vref/mid, osc on, dac unmute */
442 tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
444 case SND_SOC_BIAS_PREPARE:
446 case SND_SOC_BIAS_STANDBY:
447 /* everything off except vref/vmid, */
448 tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040);
450 case SND_SOC_BIAS_OFF:
451 /* everything off, dac mute, inactive */
452 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
453 tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
456 codec->bias_level = level;
460 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000
461 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
462 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
464 struct snd_soc_dai tlv320aic23_dai = {
465 .name = "tlv320aic23",
467 .stream_name = "Playback",
470 .rates = AIC23_RATES,
471 .formats = AIC23_FORMATS,},
473 .stream_name = "Capture",
476 .rates = AIC23_RATES,
477 .formats = AIC23_FORMATS,},
479 .prepare = tlv320aic23_pcm_prepare,
480 .hw_params = tlv320aic23_hw_params,
481 .shutdown = tlv320aic23_shutdown,
484 .digital_mute = tlv320aic23_mute,
485 .set_fmt = tlv320aic23_set_dai_fmt,
486 .set_sysclk = tlv320aic23_set_dai_sysclk,
489 EXPORT_SYMBOL_GPL(tlv320aic23_dai);
491 static int tlv320aic23_suspend(struct platform_device *pdev,
494 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
495 struct snd_soc_codec *codec = socdev->codec;
497 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
498 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
503 static int tlv320aic23_resume(struct platform_device *pdev)
505 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
506 struct snd_soc_codec *codec = socdev->codec;
510 /* Sync reg_cache with the hardware */
511 for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) {
512 u16 val = tlv320aic23_read_reg_cache(codec, reg);
513 tlv320aic23_write(codec, reg, val);
516 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
517 tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);
523 * initialise the AIC23 driver
524 * register the mixer and dsp interfaces with the kernel
526 static int tlv320aic23_init(struct snd_soc_device *socdev)
528 struct snd_soc_codec *codec = socdev->codec;
532 codec->name = "tlv320aic23";
533 codec->owner = THIS_MODULE;
534 codec->read = tlv320aic23_read_reg_cache;
535 codec->write = tlv320aic23_write;
536 codec->set_bias_level = tlv320aic23_set_bias_level;
537 codec->dai = &tlv320aic23_dai;
539 codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
541 kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
542 if (codec->reg_cache == NULL)
546 tlv320aic23_write(codec, TLV320AIC23_RESET, 0);
549 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
551 printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
555 /* power on device */
556 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
558 tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
561 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
562 tlv320aic23_write(codec, TLV320AIC23_LINVOL,
563 (reg & (~TLV320AIC23_LIM_MUTED)) |
564 (TLV320AIC23_LRS_ENABLED));
566 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
567 tlv320aic23_write(codec, TLV320AIC23_RINVOL,
568 (reg & (~TLV320AIC23_LIM_MUTED)) |
569 TLV320AIC23_LRS_ENABLED);
571 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
572 tlv320aic23_write(codec, TLV320AIC23_ANLG,
573 (reg) & (~TLV320AIC23_BYPASS_ON) &
574 (~TLV320AIC23_MICM_MUTED));
576 /* Default output volume */
577 tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
578 TLV320AIC23_DEFAULT_OUT_VOL &
579 TLV320AIC23_OUT_VOL_MASK);
580 tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
581 TLV320AIC23_DEFAULT_OUT_VOL &
582 TLV320AIC23_OUT_VOL_MASK);
584 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
586 tlv320aic23_add_controls(codec);
587 tlv320aic23_add_widgets(codec);
588 ret = snd_soc_register_card(socdev);
590 printk(KERN_ERR "tlv320aic23: failed to register card\n");
597 snd_soc_free_pcms(socdev);
598 snd_soc_dapm_free(socdev);
600 kfree(codec->reg_cache);
603 static struct snd_soc_device *tlv320aic23_socdev;
605 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
607 * If the i2c layer weren't so broken, we could pass this kind of data
610 static int tlv320aic23_codec_probe(struct i2c_client *i2c,
611 const struct i2c_device_id *i2c_id)
613 struct snd_soc_device *socdev = tlv320aic23_socdev;
614 struct snd_soc_codec *codec = socdev->codec;
617 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
620 i2c_set_clientdata(i2c, codec);
621 codec->control_data = i2c;
623 ret = tlv320aic23_init(socdev);
625 printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
635 static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
637 put_device(&i2c->dev);
641 static const struct i2c_device_id tlv320aic23_id[] = {
646 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
648 static struct i2c_driver tlv320aic23_i2c_driver = {
650 .name = "tlv320aic23",
652 .probe = tlv320aic23_codec_probe,
653 .remove = __exit_p(tlv320aic23_i2c_remove),
654 .id_table = tlv320aic23_id,
659 static int tlv320aic23_probe(struct platform_device *pdev)
661 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
662 struct snd_soc_codec *codec;
665 printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);
667 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
671 socdev->codec = codec;
672 mutex_init(&codec->mutex);
673 INIT_LIST_HEAD(&codec->dapm_widgets);
674 INIT_LIST_HEAD(&codec->dapm_paths);
676 tlv320aic23_socdev = socdev;
677 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
678 codec->hw_write = (hw_write_t) i2c_smbus_write_byte_data;
679 codec->hw_read = NULL;
680 ret = i2c_add_driver(&tlv320aic23_i2c_driver);
682 printk(KERN_ERR "can't add i2c driver");
687 static int tlv320aic23_remove(struct platform_device *pdev)
689 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
690 struct snd_soc_codec *codec = socdev->codec;
692 if (codec->control_data)
693 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
695 snd_soc_free_pcms(socdev);
696 snd_soc_dapm_free(socdev);
697 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
698 i2c_del_driver(&tlv320aic23_i2c_driver);
700 kfree(codec->reg_cache);
705 struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
706 .probe = tlv320aic23_probe,
707 .remove = tlv320aic23_remove,
708 .suspend = tlv320aic23_suspend,
709 .resume = tlv320aic23_resume,
711 EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);
713 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
714 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
715 MODULE_LICENSE("GPL");