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15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/init.h>
18#include <linux/delay.h>
19#include <linux/pm.h>
20#include <linux/i2c.h>
21#include <linux/platform_device.h>
22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/soc-dapm.h>
27#include <sound/initval.h>
28
29#include "ak4535.h"
30
31#define AK4535_VERSION "0.3"
32
33struct snd_soc_codec_device soc_codec_dev_ak4535;
34
35
36struct ak4535_priv {
37 unsigned int sysclk;
38};
39
40
41
42
43static const u16 ak4535_reg[AK4535_CACHEREGNUM] = {
44 0x0000, 0x0080, 0x0000, 0x0003,
45 0x0002, 0x0000, 0x0011, 0x0001,
46 0x0000, 0x0040, 0x0036, 0x0010,
47 0x0000, 0x0000, 0x0057, 0x0000,
48};
49
50
51
52
53static inline unsigned int ak4535_read_reg_cache(struct snd_soc_codec *codec,
54 unsigned int reg)
55{
56 u16 *cache = codec->reg_cache;
57 if (reg >= AK4535_CACHEREGNUM)
58 return -1;
59 return cache[reg];
60}
61
62
63
64
65static inline void ak4535_write_reg_cache(struct snd_soc_codec *codec,
66 u16 reg, unsigned int value)
67{
68 u16 *cache = codec->reg_cache;
69 if (reg >= AK4535_CACHEREGNUM)
70 return;
71 cache[reg] = value;
72}
73
74
75
76
77static int ak4535_write(struct snd_soc_codec *codec, unsigned int reg,
78 unsigned int value)
79{
80 u8 data[2];
81
82
83
84
85
86 data[0] = reg & 0xff;
87 data[1] = value & 0xff;
88
89 ak4535_write_reg_cache(codec, reg, value);
90 if (codec->hw_write(codec->control_data, data, 2) == 2)
91 return 0;
92 else
93 return -EIO;
94}
95
96static int ak4535_sync(struct snd_soc_codec *codec)
97{
98 u16 *cache = codec->reg_cache;
99 int i, r = 0;
100
101 for (i = 0; i < AK4535_CACHEREGNUM; i++)
102 r |= ak4535_write(codec, i, cache[i]);
103
104 return r;
105};
106
107static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
108static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
109static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
110static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"};
111static const char *ak4535_mic_select[] = {"Internal", "External"};
112
113static const struct soc_enum ak4535_enum[] = {
114 SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain),
115 SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out),
116 SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out),
117 SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp),
118 SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select),
119};
120
121static const struct snd_kcontrol_new ak4535_snd_controls[] = {
122 SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0),
123 SOC_ENUM("Mono 1 Output", ak4535_enum[1]),
124 SOC_ENUM("Mono 1 Gain", ak4535_enum[0]),
125 SOC_ENUM("Headphone Output", ak4535_enum[2]),
126 SOC_ENUM("Playback Deemphasis", ak4535_enum[3]),
127 SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0),
128 SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0),
129 SOC_ENUM("Mic Select", ak4535_enum[4]),
130 SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0),
131 SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0),
132 SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0),
133 SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0),
134 SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0),
135 SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0),
136 SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0),
137 SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1),
138 SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1),
139 SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0),
140 SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0),
141};
142
143
144static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = {
145 SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0),
146 SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0),
147};
148
149
150static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = {
151 SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0),
152 SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0),
153 SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0),
154};
155
156
157static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = {
158 SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0),
159 SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0),
160};
161
162
163static const struct snd_kcontrol_new ak4535_input_mux_control =
164 SOC_DAPM_ENUM("Input Select", ak4535_enum[4]);
165
166
167static const struct snd_kcontrol_new ak4535_hpl_control =
168 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1);
169
170
171static const struct snd_kcontrol_new ak4535_hpr_control =
172 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1);
173
174
175static const struct snd_kcontrol_new ak4535_mono2_control =
176 SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0);
177
178
179static const struct snd_kcontrol_new ak4535_line_control =
180 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0);
181
182
183static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = {
184 SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0,
185 &ak4535_stereo_mixer_controls[0],
186 ARRAY_SIZE(ak4535_stereo_mixer_controls)),
187 SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0,
188 &ak4535_mono1_mixer_controls[0],
189 ARRAY_SIZE(ak4535_mono1_mixer_controls)),
190 SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0,
191 &ak4535_input_mixer_controls[0],
192 ARRAY_SIZE(ak4535_input_mixer_controls)),
193 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
194 &ak4535_input_mux_control),
195 SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0),
196 SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0,
197 &ak4535_mono2_control),
198
199 SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0),
200 SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
201 &ak4535_line_control),
202 SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0,
203 &ak4535_hpl_control),
204 SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0,
205 &ak4535_hpr_control),
206 SND_SOC_DAPM_OUTPUT("LOUT"),
207 SND_SOC_DAPM_OUTPUT("HPL"),
208 SND_SOC_DAPM_OUTPUT("ROUT"),
209 SND_SOC_DAPM_OUTPUT("HPR"),
210 SND_SOC_DAPM_OUTPUT("SPP"),
211 SND_SOC_DAPM_OUTPUT("SPN"),
212 SND_SOC_DAPM_OUTPUT("MOUT1"),
213 SND_SOC_DAPM_OUTPUT("MOUT2"),
214 SND_SOC_DAPM_OUTPUT("MICOUT"),
215 SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0),
216 SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0),
217 SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0),
218 SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0),
219 SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0),
220 SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0),
221 SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0),
222 SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0),
223
224 SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0),
225 SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0),
226 SND_SOC_DAPM_INPUT("MICIN"),
227 SND_SOC_DAPM_INPUT("MICEXT"),
228 SND_SOC_DAPM_INPUT("AUX"),
229 SND_SOC_DAPM_INPUT("MIN"),
230 SND_SOC_DAPM_INPUT("AIN"),
231};
232
233static const struct snd_soc_dapm_route audio_map[] = {
234
235 {"Stereo Mixer", "Playback Switch", "DAC"},
236 {"Stereo Mixer", "Mic Sidetone Switch", "Mic"},
237 {"Stereo Mixer", "Aux Bypass Switch", "AUX In"},
238
239
240 {"Mono1 Mixer", "Mic Sidetone Switch", "Mic"},
241 {"Mono1 Mixer", "Mono Playback Switch", "DAC"},
242
243
244 {"Mic", NULL, "AIN"},
245 {"Input Mux", "Internal", "Mic Int Bias"},
246 {"Input Mux", "External", "Mic Ext Bias"},
247 {"Mic Int Bias", NULL, "MICIN"},
248 {"Mic Ext Bias", NULL, "MICEXT"},
249 {"MICOUT", NULL, "Input Mux"},
250
251
252 {"LOUT", NULL, "Line Out Enable"},
253 {"ROUT", NULL, "Line Out Enable"},
254 {"Line Out Enable", "Switch", "Line Out"},
255 {"Line Out", NULL, "Stereo Mixer"},
256
257
258 {"MOUT1", NULL, "Mono Out"},
259 {"Mono Out", NULL, "Mono1 Mixer"},
260
261
262 {"HPL", NULL, "Left HP Enable"},
263 {"Left HP Enable", "Switch", "HP L Amp"},
264 {"HP L Amp", NULL, "Stereo Mixer"},
265
266
267 {"HPR", NULL, "Right HP Enable"},
268 {"Right HP Enable", "Switch", "HP R Amp"},
269 {"HP R Amp", NULL, "Stereo Mixer"},
270
271
272 {"SPP", NULL, "Speaker Enable"},
273 {"SPN", NULL, "Speaker Enable"},
274 {"Speaker Enable", "Switch", "Spk Amp"},
275 {"Spk Amp", NULL, "MIN"},
276
277
278 {"MOUT2", NULL, "Mono 2 Enable"},
279 {"Mono 2 Enable", "Switch", "Stereo Mixer"},
280
281
282 {"Aux In", NULL, "AUX"},
283
284
285 {"ADC", NULL, "Input Mixer"},
286 {"Input Mixer", "Mic Capture Switch", "Mic"},
287 {"Input Mixer", "Aux Capture Switch", "Aux In"},
288};
289
290static int ak4535_add_widgets(struct snd_soc_codec *codec)
291{
292 snd_soc_dapm_new_controls(codec, ak4535_dapm_widgets,
293 ARRAY_SIZE(ak4535_dapm_widgets));
294
295 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
296
297 snd_soc_dapm_new_widgets(codec);
298 return 0;
299}
300
301static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
302 int clk_id, unsigned int freq, int dir)
303{
304 struct snd_soc_codec *codec = codec_dai->codec;
305 struct ak4535_priv *ak4535 = codec->private_data;
306
307 ak4535->sysclk = freq;
308 return 0;
309}
310
311static int ak4535_hw_params(struct snd_pcm_substream *substream,
312 struct snd_pcm_hw_params *params,
313 struct snd_soc_dai *dai)
314{
315 struct snd_soc_pcm_runtime *rtd = substream->private_data;
316 struct snd_soc_device *socdev = rtd->socdev;
317 struct snd_soc_codec *codec = socdev->card->codec;
318 struct ak4535_priv *ak4535 = codec->private_data;
319 u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
320 int rate = params_rate(params), fs = 256;
321
322 if (rate)
323 fs = ak4535->sysclk / rate;
324
325
326 switch (fs) {
327 case 1024:
328 mode2 |= (0x2 << 5);
329 break;
330 case 512:
331 mode2 |= (0x1 << 5);
332 break;
333 case 256:
334 break;
335 }
336
337
338 ak4535_write(codec, AK4535_MODE2, mode2);
339 return 0;
340}
341
342static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
343 unsigned int fmt)
344{
345 struct snd_soc_codec *codec = codec_dai->codec;
346 u8 mode1 = 0;
347
348
349 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
350 case SND_SOC_DAIFMT_I2S:
351 mode1 = 0x0002;
352 break;
353 case SND_SOC_DAIFMT_LEFT_J:
354 mode1 = 0x0001;
355 break;
356 default:
357 return -EINVAL;
358 }
359
360
361 mode1 |= 0x4;
362
363 ak4535_write(codec, AK4535_MODE1, mode1);
364 return 0;
365}
366
367static int ak4535_mute(struct snd_soc_dai *dai, int mute)
368{
369 struct snd_soc_codec *codec = dai->codec;
370 u16 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
371 if (!mute)
372 ak4535_write(codec, AK4535_DAC, mute_reg);
373 else
374 ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
375 return 0;
376}
377
378static int ak4535_set_bias_level(struct snd_soc_codec *codec,
379 enum snd_soc_bias_level level)
380{
381 u16 i;
382
383 switch (level) {
384 case SND_SOC_BIAS_ON:
385 ak4535_mute(codec->dai, 0);
386 break;
387 case SND_SOC_BIAS_PREPARE:
388 ak4535_mute(codec->dai, 1);
389 break;
390 case SND_SOC_BIAS_STANDBY:
391 i = ak4535_read_reg_cache(codec, AK4535_PM1);
392 ak4535_write(codec, AK4535_PM1, i | 0x80);
393 i = ak4535_read_reg_cache(codec, AK4535_PM2);
394 ak4535_write(codec, AK4535_PM2, i & (~0x80));
395 break;
396 case SND_SOC_BIAS_OFF:
397 i = ak4535_read_reg_cache(codec, AK4535_PM1);
398 ak4535_write(codec, AK4535_PM1, i & (~0x80));
399 break;
400 }
401 codec->bias_level = level;
402 return 0;
403}
404
405#define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
406 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
407 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
408
409static struct snd_soc_dai_ops ak4535_dai_ops = {
410 .hw_params = ak4535_hw_params,
411 .set_fmt = ak4535_set_dai_fmt,
412 .digital_mute = ak4535_mute,
413 .set_sysclk = ak4535_set_dai_sysclk,
414};
415
416struct snd_soc_dai ak4535_dai = {
417 .name = "AK4535",
418 .playback = {
419 .stream_name = "Playback",
420 .channels_min = 1,
421 .channels_max = 2,
422 .rates = AK4535_RATES,
423 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
424 .capture = {
425 .stream_name = "Capture",
426 .channels_min = 1,
427 .channels_max = 2,
428 .rates = AK4535_RATES,
429 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
430 .ops = &ak4535_dai_ops,
431};
432EXPORT_SYMBOL_GPL(ak4535_dai);
433
434static int ak4535_suspend(struct platform_device *pdev, pm_message_t state)
435{
436 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
437 struct snd_soc_codec *codec = socdev->card->codec;
438
439 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
440 return 0;
441}
442
443static int ak4535_resume(struct platform_device *pdev)
444{
445 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
446 struct snd_soc_codec *codec = socdev->card->codec;
447 ak4535_sync(codec);
448 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
449 ak4535_set_bias_level(codec, codec->suspend_bias_level);
450 return 0;
451}
452
453
454
455
456
457static int ak4535_init(struct snd_soc_device *socdev)
458{
459 struct snd_soc_codec *codec = socdev->card->codec;
460 int ret = 0;
461
462 codec->name = "AK4535";
463 codec->owner = THIS_MODULE;
464 codec->read = ak4535_read_reg_cache;
465 codec->write = ak4535_write;
466 codec->set_bias_level = ak4535_set_bias_level;
467 codec->dai = &ak4535_dai;
468 codec->num_dai = 1;
469 codec->reg_cache_size = ARRAY_SIZE(ak4535_reg);
470 codec->reg_cache = kmemdup(ak4535_reg, sizeof(ak4535_reg), GFP_KERNEL);
471
472 if (codec->reg_cache == NULL)
473 return -ENOMEM;
474
475
476 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
477 if (ret < 0) {
478 printk(KERN_ERR "ak4535: failed to create pcms\n");
479 goto pcm_err;
480 }
481
482
483 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
484
485 snd_soc_add_controls(codec, ak4535_snd_controls,
486 ARRAY_SIZE(ak4535_snd_controls));
487 ak4535_add_widgets(codec);
488 ret = snd_soc_init_card(socdev);
489 if (ret < 0) {
490 printk(KERN_ERR "ak4535: failed to register card\n");
491 goto card_err;
492 }
493
494 return ret;
495
496card_err:
497 snd_soc_free_pcms(socdev);
498 snd_soc_dapm_free(socdev);
499pcm_err:
500 kfree(codec->reg_cache);
501
502 return ret;
503}
504
505static struct snd_soc_device *ak4535_socdev;
506
507#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
508
509static int ak4535_i2c_probe(struct i2c_client *i2c,
510 const struct i2c_device_id *id)
511{
512 struct snd_soc_device *socdev = ak4535_socdev;
513 struct snd_soc_codec *codec = socdev->card->codec;
514 int ret;
515
516 i2c_set_clientdata(i2c, codec);
517 codec->control_data = i2c;
518
519 ret = ak4535_init(socdev);
520 if (ret < 0)
521 printk(KERN_ERR "failed to initialise AK4535\n");
522
523 return ret;
524}
525
526static int ak4535_i2c_remove(struct i2c_client *client)
527{
528 struct snd_soc_codec *codec = i2c_get_clientdata(client);
529 kfree(codec->reg_cache);
530 return 0;
531}
532
533static const struct i2c_device_id ak4535_i2c_id[] = {
534 { "ak4535", 0 },
535 { }
536};
537MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);
538
539static struct i2c_driver ak4535_i2c_driver = {
540 .driver = {
541 .name = "AK4535 I2C Codec",
542 .owner = THIS_MODULE,
543 },
544 .probe = ak4535_i2c_probe,
545 .remove = ak4535_i2c_remove,
546 .id_table = ak4535_i2c_id,
547};
548
549static int ak4535_add_i2c_device(struct platform_device *pdev,
550 const struct ak4535_setup_data *setup)
551{
552 struct i2c_board_info info;
553 struct i2c_adapter *adapter;
554 struct i2c_client *client;
555 int ret;
556
557 ret = i2c_add_driver(&ak4535_i2c_driver);
558 if (ret != 0) {
559 dev_err(&pdev->dev, "can't add i2c driver\n");
560 return ret;
561 }
562
563 memset(&info, 0, sizeof(struct i2c_board_info));
564 info.addr = setup->i2c_address;
565 strlcpy(info.type, "ak4535", I2C_NAME_SIZE);
566
567 adapter = i2c_get_adapter(setup->i2c_bus);
568 if (!adapter) {
569 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
570 setup->i2c_bus);
571 goto err_driver;
572 }
573
574 client = i2c_new_device(adapter, &info);
575 i2c_put_adapter(adapter);
576 if (!client) {
577 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
578 (unsigned int)info.addr);
579 goto err_driver;
580 }
581
582 return 0;
583
584err_driver:
585 i2c_del_driver(&ak4535_i2c_driver);
586 return -ENODEV;
587}
588#endif
589
590static int ak4535_probe(struct platform_device *pdev)
591{
592 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
593 struct ak4535_setup_data *setup;
594 struct snd_soc_codec *codec;
595 struct ak4535_priv *ak4535;
596 int ret;
597
598 printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION);
599
600 setup = socdev->codec_data;
601 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
602 if (codec == NULL)
603 return -ENOMEM;
604
605 ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL);
606 if (ak4535 == NULL) {
607 kfree(codec);
608 return -ENOMEM;
609 }
610
611 codec->private_data = ak4535;
612 socdev->card->codec = codec;
613 mutex_init(&codec->mutex);
614 INIT_LIST_HEAD(&codec->dapm_widgets);
615 INIT_LIST_HEAD(&codec->dapm_paths);
616
617 ak4535_socdev = socdev;
618 ret = -ENODEV;
619
620#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
621 if (setup->i2c_address) {
622 codec->hw_write = (hw_write_t)i2c_master_send;
623 ret = ak4535_add_i2c_device(pdev, setup);
624 }
625#endif
626
627 if (ret != 0) {
628 kfree(codec->private_data);
629 kfree(codec);
630 }
631 return ret;
632}
633
634
635static int ak4535_remove(struct platform_device *pdev)
636{
637 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
638 struct snd_soc_codec *codec = socdev->card->codec;
639
640 if (codec->control_data)
641 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
642
643 snd_soc_free_pcms(socdev);
644 snd_soc_dapm_free(socdev);
645#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
646 if (codec->control_data)
647 i2c_unregister_device(codec->control_data);
648 i2c_del_driver(&ak4535_i2c_driver);
649#endif
650 kfree(codec->private_data);
651 kfree(codec);
652
653 return 0;
654}
655
656struct snd_soc_codec_device soc_codec_dev_ak4535 = {
657 .probe = ak4535_probe,
658 .remove = ak4535_remove,
659 .suspend = ak4535_suspend,
660 .resume = ak4535_resume,
661};
662EXPORT_SYMBOL_GPL(soc_codec_dev_ak4535);
663
664static int __init ak4535_modinit(void)
665{
666 return snd_soc_register_dai(&ak4535_dai);
667}
668module_init(ak4535_modinit);
669
670static void __exit ak4535_exit(void)
671{
672 snd_soc_unregister_dai(&ak4535_dai);
673}
674module_exit(ak4535_exit);
675
676MODULE_DESCRIPTION("Soc AK4535 driver");
677MODULE_AUTHOR("Richard Purdie");
678MODULE_LICENSE("GPL");
679
