Commit | Line | Data |
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d8e3bb73 GL |
1 | /* |
2 | * Texas Instruments TLV320AIC26 low power audio CODEC | |
3 | * ALSA SoC CODEC driver | |
4 | * | |
5 | * Copyright (C) 2008 Secret Lab Technologies Ltd. | |
6 | */ | |
7 | ||
8 | #include <linux/module.h> | |
9 | #include <linux/moduleparam.h> | |
10 | #include <linux/init.h> | |
11 | #include <linux/delay.h> | |
12 | #include <linux/pm.h> | |
13 | #include <linux/device.h> | |
14 | #include <linux/sysfs.h> | |
15 | #include <linux/spi/spi.h> | |
16 | #include <sound/core.h> | |
17 | #include <sound/pcm.h> | |
18 | #include <sound/pcm_params.h> | |
19 | #include <sound/soc.h> | |
20 | #include <sound/soc-dapm.h> | |
21 | #include <sound/soc-of-simple.h> | |
22 | #include <sound/initval.h> | |
23 | ||
24 | #include "tlv320aic26.h" | |
25 | ||
26 | MODULE_DESCRIPTION("ASoC TLV320AIC26 codec driver"); | |
27 | MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); | |
28 | MODULE_LICENSE("GPL"); | |
29 | ||
30 | /* AIC26 driver private data */ | |
31 | struct aic26 { | |
32 | struct spi_device *spi; | |
33 | struct snd_soc_codec codec; | |
34 | u16 reg_cache[AIC26_NUM_REGS]; /* shadow registers */ | |
35 | int master; | |
36 | int datfm; | |
37 | int mclk; | |
38 | ||
39 | /* Keyclick parameters */ | |
40 | int keyclick_amplitude; | |
41 | int keyclick_freq; | |
42 | int keyclick_len; | |
43 | }; | |
44 | ||
45 | /* --------------------------------------------------------------------- | |
46 | * Register access routines | |
47 | */ | |
48 | static unsigned int aic26_reg_read(struct snd_soc_codec *codec, | |
49 | unsigned int reg) | |
50 | { | |
51 | struct aic26 *aic26 = codec->private_data; | |
52 | u16 *cache = codec->reg_cache; | |
53 | u16 cmd, value; | |
54 | u8 buffer[2]; | |
55 | int rc; | |
56 | ||
57 | if (reg >= AIC26_NUM_REGS) { | |
58 | WARN_ON_ONCE(1); | |
59 | return 0; | |
60 | } | |
61 | ||
62 | /* Do SPI transfer; first 16bits are command; remaining is | |
63 | * register contents */ | |
64 | cmd = AIC26_READ_COMMAND_WORD(reg); | |
65 | buffer[0] = (cmd >> 8) & 0xff; | |
66 | buffer[1] = cmd & 0xff; | |
67 | rc = spi_write_then_read(aic26->spi, buffer, 2, buffer, 2); | |
68 | if (rc) { | |
69 | dev_err(&aic26->spi->dev, "AIC26 reg read error\n"); | |
70 | return -EIO; | |
71 | } | |
72 | value = (buffer[0] << 8) | buffer[1]; | |
73 | ||
74 | /* Update the cache before returning with the value */ | |
75 | cache[reg] = value; | |
76 | return value; | |
77 | } | |
78 | ||
79 | static unsigned int aic26_reg_read_cache(struct snd_soc_codec *codec, | |
80 | unsigned int reg) | |
81 | { | |
82 | u16 *cache = codec->reg_cache; | |
83 | ||
84 | if (reg >= AIC26_NUM_REGS) { | |
85 | WARN_ON_ONCE(1); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | return cache[reg]; | |
90 | } | |
91 | ||
92 | static int aic26_reg_write(struct snd_soc_codec *codec, unsigned int reg, | |
93 | unsigned int value) | |
94 | { | |
95 | struct aic26 *aic26 = codec->private_data; | |
96 | u16 *cache = codec->reg_cache; | |
97 | u16 cmd; | |
98 | u8 buffer[4]; | |
99 | int rc; | |
100 | ||
101 | if (reg >= AIC26_NUM_REGS) { | |
102 | WARN_ON_ONCE(1); | |
103 | return -EINVAL; | |
104 | } | |
105 | ||
106 | /* Do SPI transfer; first 16bits are command; remaining is data | |
107 | * to write into register */ | |
108 | cmd = AIC26_WRITE_COMMAND_WORD(reg); | |
109 | buffer[0] = (cmd >> 8) & 0xff; | |
110 | buffer[1] = cmd & 0xff; | |
111 | buffer[2] = value >> 8; | |
112 | buffer[3] = value; | |
113 | rc = spi_write(aic26->spi, buffer, 4); | |
114 | if (rc) { | |
115 | dev_err(&aic26->spi->dev, "AIC26 reg read error\n"); | |
116 | return -EIO; | |
117 | } | |
118 | ||
119 | /* update cache before returning */ | |
120 | cache[reg] = value; | |
121 | return 0; | |
122 | } | |
123 | ||
124 | /* --------------------------------------------------------------------- | |
125 | * Digital Audio Interface Operations | |
126 | */ | |
127 | static int aic26_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
128 | struct snd_pcm_hw_params *params, |
129 | struct snd_soc_dai *dai) | |
d8e3bb73 GL |
130 | { |
131 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
132 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 133 | struct snd_soc_codec *codec = socdev->card->codec; |
d8e3bb73 GL |
134 | struct aic26 *aic26 = codec->private_data; |
135 | int fsref, divisor, wlen, pval, jval, dval, qval; | |
136 | u16 reg; | |
137 | ||
138 | dev_dbg(&aic26->spi->dev, "aic26_hw_params(substream=%p, params=%p)\n", | |
139 | substream, params); | |
140 | dev_dbg(&aic26->spi->dev, "rate=%i format=%i\n", params_rate(params), | |
141 | params_format(params)); | |
142 | ||
143 | switch (params_rate(params)) { | |
144 | case 8000: fsref = 48000; divisor = AIC26_DIV_6; break; | |
145 | case 11025: fsref = 44100; divisor = AIC26_DIV_4; break; | |
146 | case 12000: fsref = 48000; divisor = AIC26_DIV_4; break; | |
147 | case 16000: fsref = 48000; divisor = AIC26_DIV_3; break; | |
148 | case 22050: fsref = 44100; divisor = AIC26_DIV_2; break; | |
149 | case 24000: fsref = 48000; divisor = AIC26_DIV_2; break; | |
150 | case 32000: fsref = 48000; divisor = AIC26_DIV_1_5; break; | |
151 | case 44100: fsref = 44100; divisor = AIC26_DIV_1; break; | |
152 | case 48000: fsref = 48000; divisor = AIC26_DIV_1; break; | |
153 | default: | |
154 | dev_dbg(&aic26->spi->dev, "bad rate\n"); return -EINVAL; | |
155 | } | |
156 | ||
157 | /* select data word length */ | |
158 | switch (params_format(params)) { | |
159 | case SNDRV_PCM_FORMAT_S8: wlen = AIC26_WLEN_16; break; | |
160 | case SNDRV_PCM_FORMAT_S16_BE: wlen = AIC26_WLEN_16; break; | |
161 | case SNDRV_PCM_FORMAT_S24_BE: wlen = AIC26_WLEN_24; break; | |
162 | case SNDRV_PCM_FORMAT_S32_BE: wlen = AIC26_WLEN_32; break; | |
163 | default: | |
164 | dev_dbg(&aic26->spi->dev, "bad format\n"); return -EINVAL; | |
165 | } | |
166 | ||
167 | /* Configure PLL */ | |
168 | pval = 1; | |
169 | jval = (fsref == 44100) ? 7 : 8; | |
170 | dval = (fsref == 44100) ? 5264 : 1920; | |
171 | qval = 0; | |
172 | reg = 0x8000 | qval << 11 | pval << 8 | jval << 2; | |
173 | aic26_reg_write(codec, AIC26_REG_PLL_PROG1, reg); | |
174 | reg = dval << 2; | |
175 | aic26_reg_write(codec, AIC26_REG_PLL_PROG2, reg); | |
176 | ||
177 | /* Audio Control 3 (master mode, fsref rate) */ | |
178 | reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL3); | |
179 | reg &= ~0xf800; | |
180 | if (aic26->master) | |
181 | reg |= 0x0800; | |
182 | if (fsref == 48000) | |
183 | reg |= 0x2000; | |
184 | aic26_reg_write(codec, AIC26_REG_AUDIO_CTRL3, reg); | |
185 | ||
186 | /* Audio Control 1 (FSref divisor) */ | |
187 | reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL1); | |
188 | reg &= ~0x0fff; | |
189 | reg |= wlen | aic26->datfm | (divisor << 3) | divisor; | |
190 | aic26_reg_write(codec, AIC26_REG_AUDIO_CTRL1, reg); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | /** | |
196 | * aic26_mute - Mute control to reduce noise when changing audio format | |
197 | */ | |
198 | static int aic26_mute(struct snd_soc_dai *dai, int mute) | |
199 | { | |
200 | struct snd_soc_codec *codec = dai->codec; | |
201 | struct aic26 *aic26 = codec->private_data; | |
202 | u16 reg = aic26_reg_read_cache(codec, AIC26_REG_DAC_GAIN); | |
203 | ||
204 | dev_dbg(&aic26->spi->dev, "aic26_mute(dai=%p, mute=%i)\n", | |
205 | dai, mute); | |
206 | ||
207 | if (mute) | |
208 | reg |= 0x8080; | |
209 | else | |
210 | reg &= ~0x8080; | |
211 | aic26_reg_write(codec, AIC26_REG_DAC_GAIN, reg); | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
216 | static int aic26_set_sysclk(struct snd_soc_dai *codec_dai, | |
217 | int clk_id, unsigned int freq, int dir) | |
218 | { | |
219 | struct snd_soc_codec *codec = codec_dai->codec; | |
220 | struct aic26 *aic26 = codec->private_data; | |
221 | ||
222 | dev_dbg(&aic26->spi->dev, "aic26_set_sysclk(dai=%p, clk_id==%i," | |
223 | " freq=%i, dir=%i)\n", | |
224 | codec_dai, clk_id, freq, dir); | |
225 | ||
226 | /* MCLK needs to fall between 2MHz and 50 MHz */ | |
227 | if ((freq < 2000000) || (freq > 50000000)) | |
228 | return -EINVAL; | |
229 | ||
230 | aic26->mclk = freq; | |
231 | return 0; | |
232 | } | |
233 | ||
234 | static int aic26_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
235 | { | |
236 | struct snd_soc_codec *codec = codec_dai->codec; | |
237 | struct aic26 *aic26 = codec->private_data; | |
238 | ||
239 | dev_dbg(&aic26->spi->dev, "aic26_set_fmt(dai=%p, fmt==%i)\n", | |
240 | codec_dai, fmt); | |
241 | ||
242 | /* set master/slave audio interface */ | |
243 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
244 | case SND_SOC_DAIFMT_CBM_CFM: aic26->master = 1; break; | |
245 | case SND_SOC_DAIFMT_CBS_CFS: aic26->master = 0; break; | |
246 | default: | |
247 | dev_dbg(&aic26->spi->dev, "bad master\n"); return -EINVAL; | |
248 | } | |
249 | ||
250 | /* interface format */ | |
251 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
252 | case SND_SOC_DAIFMT_I2S: aic26->datfm = AIC26_DATFM_I2S; break; | |
253 | case SND_SOC_DAIFMT_DSP_A: aic26->datfm = AIC26_DATFM_DSP; break; | |
254 | case SND_SOC_DAIFMT_RIGHT_J: aic26->datfm = AIC26_DATFM_RIGHTJ; break; | |
255 | case SND_SOC_DAIFMT_LEFT_J: aic26->datfm = AIC26_DATFM_LEFTJ; break; | |
256 | default: | |
257 | dev_dbg(&aic26->spi->dev, "bad format\n"); return -EINVAL; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
263 | /* --------------------------------------------------------------------- | |
264 | * Digital Audio Interface Definition | |
265 | */ | |
266 | #define AIC26_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
267 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
268 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ | |
269 | SNDRV_PCM_RATE_48000) | |
270 | #define AIC26_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |\ | |
271 | SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE) | |
272 | ||
6335d055 EM |
273 | static struct snd_soc_dai_ops aic26_dai_ops = { |
274 | .hw_params = aic26_hw_params, | |
275 | .digital_mute = aic26_mute, | |
276 | .set_sysclk = aic26_set_sysclk, | |
277 | .set_fmt = aic26_set_fmt, | |
278 | }; | |
279 | ||
d8e3bb73 GL |
280 | struct snd_soc_dai aic26_dai = { |
281 | .name = "tlv320aic26", | |
282 | .playback = { | |
283 | .stream_name = "Playback", | |
284 | .channels_min = 2, | |
285 | .channels_max = 2, | |
286 | .rates = AIC26_RATES, | |
287 | .formats = AIC26_FORMATS, | |
288 | }, | |
289 | .capture = { | |
290 | .stream_name = "Capture", | |
291 | .channels_min = 2, | |
292 | .channels_max = 2, | |
293 | .rates = AIC26_RATES, | |
294 | .formats = AIC26_FORMATS, | |
295 | }, | |
6335d055 | 296 | .ops = &aic26_dai_ops, |
d8e3bb73 GL |
297 | }; |
298 | EXPORT_SYMBOL_GPL(aic26_dai); | |
299 | ||
300 | /* --------------------------------------------------------------------- | |
301 | * ALSA controls | |
302 | */ | |
303 | static const char *aic26_capture_src_text[] = {"Mic", "Aux"}; | |
304 | static const struct soc_enum aic26_capture_src_enum = | |
305 | SOC_ENUM_SINGLE(AIC26_REG_AUDIO_CTRL1, 12, 2, aic26_capture_src_text); | |
306 | ||
307 | static const struct snd_kcontrol_new aic26_snd_controls[] = { | |
308 | /* Output */ | |
309 | SOC_DOUBLE("PCM Playback Volume", AIC26_REG_DAC_GAIN, 8, 0, 0x7f, 1), | |
310 | SOC_DOUBLE("PCM Playback Switch", AIC26_REG_DAC_GAIN, 15, 7, 1, 1), | |
311 | SOC_SINGLE("PCM Capture Volume", AIC26_REG_ADC_GAIN, 8, 0x7f, 0), | |
312 | SOC_SINGLE("PCM Capture Mute", AIC26_REG_ADC_GAIN, 15, 1, 1), | |
313 | SOC_SINGLE("Keyclick activate", AIC26_REG_AUDIO_CTRL2, 15, 0x1, 0), | |
314 | SOC_SINGLE("Keyclick amplitude", AIC26_REG_AUDIO_CTRL2, 12, 0x7, 0), | |
315 | SOC_SINGLE("Keyclick frequency", AIC26_REG_AUDIO_CTRL2, 8, 0x7, 0), | |
316 | SOC_SINGLE("Keyclick period", AIC26_REG_AUDIO_CTRL2, 4, 0xf, 0), | |
317 | SOC_ENUM("Capture Source", aic26_capture_src_enum), | |
318 | }; | |
319 | ||
320 | /* --------------------------------------------------------------------- | |
321 | * SoC CODEC portion of driver: probe and release routines | |
322 | */ | |
323 | static int aic26_probe(struct platform_device *pdev) | |
324 | { | |
325 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
326 | struct snd_soc_codec *codec; | |
d8e3bb73 | 327 | struct aic26 *aic26; |
eb5f6d75 | 328 | int ret, err; |
d8e3bb73 GL |
329 | |
330 | dev_info(&pdev->dev, "Probing AIC26 SoC CODEC driver\n"); | |
331 | dev_dbg(&pdev->dev, "socdev=%p\n", socdev); | |
332 | dev_dbg(&pdev->dev, "codec_data=%p\n", socdev->codec_data); | |
333 | ||
334 | /* Fetch the relevant aic26 private data here (it's already been | |
335 | * stored in the .codec pointer) */ | |
336 | aic26 = socdev->codec_data; | |
337 | if (aic26 == NULL) { | |
338 | dev_err(&pdev->dev, "aic26: missing codec pointer\n"); | |
339 | return -ENODEV; | |
340 | } | |
341 | codec = &aic26->codec; | |
6627a653 | 342 | socdev->card->codec = codec; |
d8e3bb73 GL |
343 | |
344 | dev_dbg(&pdev->dev, "Registering PCMs, dev=%p, socdev->dev=%p\n", | |
345 | &pdev->dev, socdev->dev); | |
346 | /* register pcms */ | |
347 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
348 | if (ret < 0) { | |
349 | dev_err(&pdev->dev, "aic26: failed to create pcms\n"); | |
350 | return -ENODEV; | |
351 | } | |
352 | ||
353 | /* register controls */ | |
354 | dev_dbg(&pdev->dev, "Registering controls\n"); | |
eb5f6d75 PZ |
355 | err = snd_soc_add_controls(codec, aic26_snd_controls, |
356 | ARRAY_SIZE(aic26_snd_controls)); | |
357 | WARN_ON(err < 0); | |
d8e3bb73 | 358 | |
d8e3bb73 | 359 | return 0; |
d8e3bb73 GL |
360 | } |
361 | ||
362 | static int aic26_remove(struct platform_device *pdev) | |
363 | { | |
364 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
365 | snd_soc_free_pcms(socdev); | |
366 | return 0; | |
367 | } | |
368 | ||
369 | struct snd_soc_codec_device aic26_soc_codec_dev = { | |
370 | .probe = aic26_probe, | |
371 | .remove = aic26_remove, | |
372 | }; | |
ecb0b3f6 | 373 | EXPORT_SYMBOL_GPL(aic26_soc_codec_dev); |
d8e3bb73 GL |
374 | |
375 | /* --------------------------------------------------------------------- | |
376 | * SPI device portion of driver: sysfs files for debugging | |
377 | */ | |
378 | ||
379 | static ssize_t aic26_keyclick_show(struct device *dev, | |
380 | struct device_attribute *attr, char *buf) | |
381 | { | |
382 | struct aic26 *aic26 = dev_get_drvdata(dev); | |
383 | int val, amp, freq, len; | |
384 | ||
385 | val = aic26_reg_read_cache(&aic26->codec, AIC26_REG_AUDIO_CTRL2); | |
386 | amp = (val >> 12) & 0x7; | |
387 | freq = (125 << ((val >> 8) & 0x7)) >> 1; | |
388 | len = 2 * (1 + ((val >> 4) & 0xf)); | |
389 | ||
390 | return sprintf(buf, "amp=%x freq=%iHz len=%iclks\n", amp, freq, len); | |
391 | } | |
392 | ||
393 | /* Any write to the keyclick attribute will trigger the keyclick event */ | |
394 | static ssize_t aic26_keyclick_set(struct device *dev, | |
395 | struct device_attribute *attr, | |
396 | const char *buf, size_t count) | |
397 | { | |
398 | struct aic26 *aic26 = dev_get_drvdata(dev); | |
399 | int val; | |
400 | ||
401 | val = aic26_reg_read_cache(&aic26->codec, AIC26_REG_AUDIO_CTRL2); | |
402 | val |= 0x8000; | |
403 | aic26_reg_write(&aic26->codec, AIC26_REG_AUDIO_CTRL2, val); | |
404 | ||
405 | return count; | |
406 | } | |
407 | ||
9cce39a1 | 408 | static DEVICE_ATTR(keyclick, 0644, aic26_keyclick_show, aic26_keyclick_set); |
d8e3bb73 GL |
409 | |
410 | /* --------------------------------------------------------------------- | |
411 | * SPI device portion of driver: probe and release routines and SPI | |
412 | * driver registration. | |
413 | */ | |
414 | static int aic26_spi_probe(struct spi_device *spi) | |
415 | { | |
416 | struct aic26 *aic26; | |
64089b84 | 417 | int ret, i, reg; |
d8e3bb73 GL |
418 | |
419 | dev_dbg(&spi->dev, "probing tlv320aic26 spi device\n"); | |
420 | ||
421 | /* Allocate driver data */ | |
422 | aic26 = kzalloc(sizeof *aic26, GFP_KERNEL); | |
423 | if (!aic26) | |
424 | return -ENOMEM; | |
425 | ||
426 | /* Initialize the driver data */ | |
427 | aic26->spi = spi; | |
428 | dev_set_drvdata(&spi->dev, aic26); | |
429 | ||
430 | /* Setup what we can in the codec structure so that the register | |
431 | * access functions will work as expected. More will be filled | |
432 | * out when it is probed by the SoC CODEC part of this driver */ | |
433 | aic26->codec.private_data = aic26; | |
434 | aic26->codec.name = "aic26"; | |
435 | aic26->codec.owner = THIS_MODULE; | |
436 | aic26->codec.dai = &aic26_dai; | |
437 | aic26->codec.num_dai = 1; | |
438 | aic26->codec.read = aic26_reg_read; | |
439 | aic26->codec.write = aic26_reg_write; | |
440 | aic26->master = 1; | |
441 | mutex_init(&aic26->codec.mutex); | |
442 | INIT_LIST_HEAD(&aic26->codec.dapm_widgets); | |
443 | INIT_LIST_HEAD(&aic26->codec.dapm_paths); | |
444 | aic26->codec.reg_cache_size = AIC26_NUM_REGS; | |
445 | aic26->codec.reg_cache = aic26->reg_cache; | |
446 | ||
64089b84 MB |
447 | aic26_dai.dev = &spi->dev; |
448 | ret = snd_soc_register_dai(&aic26_dai); | |
449 | if (ret != 0) { | |
450 | dev_err(&spi->dev, "Failed to register DAI: %d\n", ret); | |
451 | kfree(aic26); | |
452 | return ret; | |
453 | } | |
454 | ||
d8e3bb73 GL |
455 | /* Reset the codec to power on defaults */ |
456 | aic26_reg_write(&aic26->codec, AIC26_REG_RESET, 0xBB00); | |
457 | ||
458 | /* Power up CODEC */ | |
459 | aic26_reg_write(&aic26->codec, AIC26_REG_POWER_CTRL, 0); | |
460 | ||
461 | /* Audio Control 3 (master mode, fsref rate) */ | |
462 | reg = aic26_reg_read(&aic26->codec, AIC26_REG_AUDIO_CTRL3); | |
463 | reg &= ~0xf800; | |
464 | reg |= 0x0800; /* set master mode */ | |
465 | aic26_reg_write(&aic26->codec, AIC26_REG_AUDIO_CTRL3, reg); | |
466 | ||
467 | /* Fill register cache */ | |
468 | for (i = 0; i < ARRAY_SIZE(aic26->reg_cache); i++) | |
469 | aic26_reg_read(&aic26->codec, i); | |
470 | ||
471 | /* Register the sysfs files for debugging */ | |
472 | /* Create SysFS files */ | |
64089b84 MB |
473 | ret = device_create_file(&spi->dev, &dev_attr_keyclick); |
474 | if (ret) | |
d8e3bb73 GL |
475 | dev_info(&spi->dev, "error creating sysfs files\n"); |
476 | ||
477 | #if defined(CONFIG_SND_SOC_OF_SIMPLE) | |
478 | /* Tell the of_soc helper about this codec */ | |
479 | of_snd_soc_register_codec(&aic26_soc_codec_dev, aic26, &aic26_dai, | |
480 | spi->dev.archdata.of_node); | |
481 | #endif | |
482 | ||
483 | dev_dbg(&spi->dev, "SPI device initialized\n"); | |
484 | return 0; | |
485 | } | |
486 | ||
487 | static int aic26_spi_remove(struct spi_device *spi) | |
488 | { | |
489 | struct aic26 *aic26 = dev_get_drvdata(&spi->dev); | |
490 | ||
64089b84 | 491 | snd_soc_unregister_dai(&aic26_dai); |
d8e3bb73 GL |
492 | kfree(aic26); |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
497 | static struct spi_driver aic26_spi = { | |
498 | .driver = { | |
499 | .name = "tlv320aic26", | |
500 | .owner = THIS_MODULE, | |
501 | }, | |
502 | .probe = aic26_spi_probe, | |
503 | .remove = aic26_spi_remove, | |
504 | }; | |
505 | ||
506 | static int __init aic26_init(void) | |
507 | { | |
508 | return spi_register_driver(&aic26_spi); | |
509 | } | |
510 | module_init(aic26_init); | |
511 | ||
512 | static void __exit aic26_exit(void) | |
513 | { | |
514 | spi_unregister_driver(&aic26_spi); | |
515 | } | |
516 | module_exit(aic26_exit); |