2 * wm8510.c -- WM8510 ALSA Soc Audio driver
4 * Copyright 2006 Wolfson Microelectronics PLC.
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
19 #include <linux/i2c.h>
20 #include <linux/platform_device.h>
21 #include <linux/spi/spi.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/initval.h>
32 #define WM8510_VERSION "0.6"
35 * wm8510 register cache
36 * We can't read the WM8510 register space when we are
37 * using 2 wire for device control, so we cache them instead.
39 static const u16 wm8510_reg[WM8510_CACHEREGNUM] = {
40 0x0000, 0x0000, 0x0000, 0x0000,
41 0x0050, 0x0000, 0x0140, 0x0000,
42 0x0000, 0x0000, 0x0000, 0x00ff,
43 0x0000, 0x0000, 0x0100, 0x00ff,
44 0x0000, 0x0000, 0x012c, 0x002c,
45 0x002c, 0x002c, 0x002c, 0x0000,
46 0x0032, 0x0000, 0x0000, 0x0000,
47 0x0000, 0x0000, 0x0000, 0x0000,
48 0x0038, 0x000b, 0x0032, 0x0000,
49 0x0008, 0x000c, 0x0093, 0x00e9,
50 0x0000, 0x0000, 0x0000, 0x0000,
51 0x0003, 0x0010, 0x0000, 0x0000,
52 0x0000, 0x0002, 0x0001, 0x0000,
53 0x0000, 0x0000, 0x0039, 0x0000,
57 #define WM8510_POWER1_BIASEN 0x08
58 #define WM8510_POWER1_BUFIOEN 0x10
60 #define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
62 /* codec private data */
64 enum snd_soc_control_type control_type;
68 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
69 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
70 static const char *wm8510_alc[] = { "ALC", "Limiter" };
72 static const struct soc_enum wm8510_enum[] = {
73 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
74 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
75 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
76 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
79 static const struct snd_kcontrol_new wm8510_snd_controls[] = {
81 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
83 SOC_ENUM("DAC Companding", wm8510_enum[1]),
84 SOC_ENUM("ADC Companding", wm8510_enum[0]),
86 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
87 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
89 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
91 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
92 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
93 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
95 SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
97 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
98 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
99 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
101 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
102 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
104 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
105 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
106 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
108 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
109 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
110 SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
112 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
113 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
114 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
116 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
117 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
119 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
120 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
122 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
123 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
124 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
125 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
127 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
128 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
131 /* Speaker Output Mixer */
132 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
133 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
134 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
135 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
138 /* Mono Output Mixer */
139 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
140 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
141 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
142 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
145 static const struct snd_kcontrol_new wm8510_boost_controls[] = {
146 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
147 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
148 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
151 static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
152 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
153 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
154 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
157 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
158 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
159 &wm8510_speaker_mixer_controls[0],
160 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
161 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
162 &wm8510_mono_mixer_controls[0],
163 ARRAY_SIZE(wm8510_mono_mixer_controls)),
164 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
165 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
166 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
167 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
168 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
169 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
171 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
172 &wm8510_micpga_controls[0],
173 ARRAY_SIZE(wm8510_micpga_controls)),
174 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
175 &wm8510_boost_controls[0],
176 ARRAY_SIZE(wm8510_boost_controls)),
178 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
180 SND_SOC_DAPM_INPUT("MICN"),
181 SND_SOC_DAPM_INPUT("MICP"),
182 SND_SOC_DAPM_INPUT("AUX"),
183 SND_SOC_DAPM_OUTPUT("MONOOUT"),
184 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
185 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
188 static const struct snd_soc_dapm_route audio_map[] = {
189 /* Mono output mixer */
190 {"Mono Mixer", "PCM Playback Switch", "DAC"},
191 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
192 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
194 /* Speaker output mixer */
195 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
196 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
197 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
200 {"Mono Out", NULL, "Mono Mixer"},
201 {"MONOOUT", NULL, "Mono Out"},
202 {"SpkN Out", NULL, "Speaker Mixer"},
203 {"SpkP Out", NULL, "Speaker Mixer"},
204 {"SPKOUTN", NULL, "SpkN Out"},
205 {"SPKOUTP", NULL, "SpkP Out"},
208 {"Mic PGA", "MICN Switch", "MICN"},
209 {"Mic PGA", "MICP Switch", "MICP"},
210 { "Mic PGA", "AUX Switch", "Aux Input" },
213 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
214 {"Boost Mixer", "Mic Volume", "MICP"},
215 {"Boost Mixer", "Aux Volume", "Aux Input"},
217 {"ADC", NULL, "Boost Mixer"},
220 static int wm8510_add_widgets(struct snd_soc_codec *codec)
222 snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets,
223 ARRAY_SIZE(wm8510_dapm_widgets));
225 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
231 unsigned int pre_div:4; /* prescale - 1 */
236 static struct pll_ pll_div;
238 /* The size in bits of the pll divide multiplied by 10
239 * to allow rounding later */
240 #define FIXED_PLL_SIZE ((1 << 24) * 10)
242 static void pll_factors(unsigned int target, unsigned int source)
244 unsigned long long Kpart;
245 unsigned int K, Ndiv, Nmod;
247 Ndiv = target / source;
251 Ndiv = target / source;
255 if ((Ndiv < 6) || (Ndiv > 12))
257 "WM8510 N value %u outwith recommended range!d\n",
261 Nmod = target % source;
262 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
264 do_div(Kpart, source);
266 K = Kpart & 0xFFFFFFFF;
268 /* Check if we need to round */
272 /* Move down to proper range now rounding is done */
278 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
279 int source, unsigned int freq_in, unsigned int freq_out)
281 struct snd_soc_codec *codec = codec_dai->codec;
284 if (freq_in == 0 || freq_out == 0) {
285 /* Clock CODEC directly from MCLK */
286 reg = snd_soc_read(codec, WM8510_CLOCK);
287 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
290 reg = snd_soc_read(codec, WM8510_POWER1);
291 snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
295 pll_factors(freq_out*4, freq_in);
297 snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
298 snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
299 snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
300 snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
301 reg = snd_soc_read(codec, WM8510_POWER1);
302 snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
304 /* Run CODEC from PLL instead of MCLK */
305 reg = snd_soc_read(codec, WM8510_CLOCK);
306 snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
312 * Configure WM8510 clock dividers.
314 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
317 struct snd_soc_codec *codec = codec_dai->codec;
321 case WM8510_OPCLKDIV:
322 reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
323 snd_soc_write(codec, WM8510_GPIO, reg | div);
326 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
327 snd_soc_write(codec, WM8510_CLOCK, reg | div);
330 reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
331 snd_soc_write(codec, WM8510_ADC, reg | div);
334 reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
335 snd_soc_write(codec, WM8510_DAC, reg | div);
338 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
339 snd_soc_write(codec, WM8510_CLOCK, reg | div);
348 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
351 struct snd_soc_codec *codec = codec_dai->codec;
353 u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
355 /* set master/slave audio interface */
356 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
357 case SND_SOC_DAIFMT_CBM_CFM:
360 case SND_SOC_DAIFMT_CBS_CFS:
366 /* interface format */
367 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
368 case SND_SOC_DAIFMT_I2S:
371 case SND_SOC_DAIFMT_RIGHT_J:
373 case SND_SOC_DAIFMT_LEFT_J:
376 case SND_SOC_DAIFMT_DSP_A:
383 /* clock inversion */
384 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
385 case SND_SOC_DAIFMT_NB_NF:
387 case SND_SOC_DAIFMT_IB_IF:
390 case SND_SOC_DAIFMT_IB_NF:
393 case SND_SOC_DAIFMT_NB_IF:
400 snd_soc_write(codec, WM8510_IFACE, iface);
401 snd_soc_write(codec, WM8510_CLOCK, clk);
405 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
406 struct snd_pcm_hw_params *params,
407 struct snd_soc_dai *dai)
409 struct snd_soc_pcm_runtime *rtd = substream->private_data;
410 struct snd_soc_codec *codec = rtd->codec;
411 u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
412 u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
415 switch (params_format(params)) {
416 case SNDRV_PCM_FORMAT_S16_LE:
418 case SNDRV_PCM_FORMAT_S20_3LE:
421 case SNDRV_PCM_FORMAT_S24_LE:
424 case SNDRV_PCM_FORMAT_S32_LE:
429 /* filter coefficient */
430 switch (params_rate(params)) {
451 snd_soc_write(codec, WM8510_IFACE, iface);
452 snd_soc_write(codec, WM8510_ADD, adn);
456 static int wm8510_mute(struct snd_soc_dai *dai, int mute)
458 struct snd_soc_codec *codec = dai->codec;
459 u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
462 snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
464 snd_soc_write(codec, WM8510_DAC, mute_reg);
468 /* liam need to make this lower power with dapm */
469 static int wm8510_set_bias_level(struct snd_soc_codec *codec,
470 enum snd_soc_bias_level level)
472 u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
475 case SND_SOC_BIAS_ON:
476 case SND_SOC_BIAS_PREPARE:
477 power1 |= 0x1; /* VMID 50k */
478 snd_soc_write(codec, WM8510_POWER1, power1);
481 case SND_SOC_BIAS_STANDBY:
482 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
484 if (codec->bias_level == SND_SOC_BIAS_OFF) {
485 /* Initial cap charge at VMID 5k */
486 snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
490 power1 |= 0x2; /* VMID 500k */
491 snd_soc_write(codec, WM8510_POWER1, power1);
494 case SND_SOC_BIAS_OFF:
495 snd_soc_write(codec, WM8510_POWER1, 0);
496 snd_soc_write(codec, WM8510_POWER2, 0);
497 snd_soc_write(codec, WM8510_POWER3, 0);
501 codec->bias_level = level;
505 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
506 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
507 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
509 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
510 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
512 static struct snd_soc_dai_ops wm8510_dai_ops = {
513 .hw_params = wm8510_pcm_hw_params,
514 .digital_mute = wm8510_mute,
515 .set_fmt = wm8510_set_dai_fmt,
516 .set_clkdiv = wm8510_set_dai_clkdiv,
517 .set_pll = wm8510_set_dai_pll,
520 static struct snd_soc_dai_driver wm8510_dai = {
521 .name = "wm8510-hifi",
523 .stream_name = "Playback",
526 .rates = WM8510_RATES,
527 .formats = WM8510_FORMATS,},
529 .stream_name = "Capture",
532 .rates = WM8510_RATES,
533 .formats = WM8510_FORMATS,},
534 .ops = &wm8510_dai_ops,
535 .symmetric_rates = 1,
538 static int wm8510_suspend(struct snd_soc_codec *codec, pm_message_t state)
540 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
544 static int wm8510_resume(struct snd_soc_codec *codec)
548 u16 *cache = codec->reg_cache;
550 /* Sync reg_cache with the hardware */
551 for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) {
552 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
553 data[1] = cache[i] & 0x00ff;
554 codec->hw_write(codec->control_data, data, 2);
556 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
561 static int wm8510_probe(struct snd_soc_codec *codec)
563 struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
566 pr_info("WM8510 Audio Codec %s", WM8510_VERSION);
568 codec->control_data = wm8510->control_data;
569 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8510->control_type);
571 printk(KERN_ERR "wm8510: failed to set cache I/O: %d\n", ret);
577 /* power on device */
578 codec->bias_level = SND_SOC_BIAS_OFF;
579 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
580 snd_soc_add_controls(codec, wm8510_snd_controls,
581 ARRAY_SIZE(wm8510_snd_controls));
582 wm8510_add_widgets(codec);
587 /* power down chip */
588 static int wm8510_remove(struct snd_soc_codec *codec)
590 struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
592 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
597 static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
598 .probe = wm8510_probe,
599 .remove = wm8510_remove,
600 .suspend = wm8510_suspend,
601 .resume = wm8510_resume,
602 .set_bias_level = wm8510_set_bias_level,
603 .reg_cache_size = ARRAY_SIZE(wm8510_reg),
604 .reg_word_size = sizeof(u16),
605 .reg_cache_default =wm8510_reg,
608 #if defined(CONFIG_SPI_MASTER)
609 static int __devinit wm8510_spi_probe(struct spi_device *spi)
611 struct wm8510_priv *wm8510;
614 wm8510 = kzalloc(sizeof(struct wm8510_priv), GFP_KERNEL);
618 wm8510->control_data = spi;
619 wm8510->control_type = SND_SOC_SPI;
620 spi_set_drvdata(spi, wm8510);
622 ret = snd_soc_register_codec(&spi->dev,
623 &soc_codec_dev_wm8510, &wm8510_dai, 1);
629 static int __devexit wm8510_spi_remove(struct spi_device *spi)
631 snd_soc_unregister_codec(&spi->dev);
635 static struct spi_driver wm8510_spi_driver = {
638 .bus = &spi_bus_type,
639 .owner = THIS_MODULE,
641 .probe = wm8510_spi_probe,
642 .remove = __devexit_p(wm8510_spi_remove),
644 #endif /* CONFIG_SPI_MASTER */
646 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
647 static __devinit int wm8510_i2c_probe(struct i2c_client *i2c,
648 const struct i2c_device_id *id)
650 struct wm8510_priv *wm8510;
653 wm8510 = kzalloc(sizeof(struct wm8510_priv), GFP_KERNEL);
657 i2c_set_clientdata(i2c, wm8510);
658 wm8510->control_data = i2c;
659 wm8510->control_type = SND_SOC_I2C;
661 ret = snd_soc_register_codec(&i2c->dev,
662 &soc_codec_dev_wm8510, &wm8510_dai, 1);
668 static __devexit int wm8510_i2c_remove(struct i2c_client *client)
670 snd_soc_unregister_codec(&client->dev);
674 static const struct i2c_device_id wm8510_i2c_id[] = {
678 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
680 static struct i2c_driver wm8510_i2c_driver = {
682 .name = "wm8510-codec",
683 .owner = THIS_MODULE,
685 .probe = wm8510_i2c_probe,
686 .remove = __devexit_p(wm8510_i2c_remove),
687 .id_table = wm8510_i2c_id,
691 static int __init wm8510_modinit(void)
694 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
695 ret = i2c_add_driver(&wm8510_i2c_driver);
697 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
701 #if defined(CONFIG_SPI_MASTER)
702 ret = spi_register_driver(&wm8510_spi_driver);
704 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
710 module_init(wm8510_modinit);
712 static void __exit wm8510_exit(void)
714 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
715 i2c_del_driver(&wm8510_i2c_driver);
717 #if defined(CONFIG_SPI_MASTER)
718 spi_unregister_driver(&wm8510_spi_driver);
721 module_exit(wm8510_exit);
723 MODULE_DESCRIPTION("ASoC WM8510 driver");
724 MODULE_AUTHOR("Liam Girdwood");
725 MODULE_LICENSE("GPL");