2 * File: sound/soc/codecs/ssm2602.c
3 * Author: Cliff Cai <Cliff.Cai@analog.com>
5 * Created: Tue June 06 2008
6 * Description: Driver for ssm2602 sound chip
9 * Copyright 2008 Analog Devices Inc.
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/init.h>
32 #include <linux/delay.h>
34 #include <linux/i2c.h>
35 #include <linux/spi/spi.h>
36 #include <linux/platform_device.h>
37 #include <linux/slab.h>
38 #include <sound/core.h>
39 #include <sound/pcm.h>
40 #include <sound/pcm_params.h>
41 #include <sound/soc.h>
42 #include <sound/initval.h>
43 #include <sound/tlv.h>
47 #define SSM2602_VERSION "0.1"
54 /* codec private data */
57 enum snd_soc_control_type control_type;
58 struct snd_pcm_substream *master_substream;
59 struct snd_pcm_substream *slave_substream;
61 enum ssm2602_type type;
62 unsigned int clk_out_pwr;
66 * ssm2602 register cache
67 * We can't read the ssm2602 register space when we are
68 * using 2 wire for device control, so we cache them instead.
69 * There is no point in caching the reset register
71 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
72 0x0097, 0x0097, 0x0079, 0x0079,
73 0x000a, 0x0008, 0x009f, 0x000a,
77 #define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0)
79 /*Appending several "None"s just for OSS mixer use*/
80 static const char *ssm2602_input_select[] = {
81 "Line", "Mic", "None", "None", "None",
82 "None", "None", "None",
85 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
87 static const struct soc_enum ssm2602_enum[] = {
88 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
89 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
92 static const unsigned int ssm260x_outmix_tlv[] = {
94 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
95 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
98 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
99 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
101 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
102 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
104 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
106 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
107 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
109 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
112 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
113 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
114 0, 127, 0, ssm260x_outmix_tlv),
115 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
117 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
118 ssm260x_sidetone_tlv),
120 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
121 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
122 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
126 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
127 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
128 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
129 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
133 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
134 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
136 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
137 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
138 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
139 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
141 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
143 SND_SOC_DAPM_OUTPUT("LOUT"),
144 SND_SOC_DAPM_OUTPUT("ROUT"),
145 SND_SOC_DAPM_INPUT("RLINEIN"),
146 SND_SOC_DAPM_INPUT("LLINEIN"),
149 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
150 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
151 ssm260x_output_mixer_controls,
152 ARRAY_SIZE(ssm260x_output_mixer_controls)),
154 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
155 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
157 SND_SOC_DAPM_OUTPUT("LHPOUT"),
158 SND_SOC_DAPM_OUTPUT("RHPOUT"),
159 SND_SOC_DAPM_INPUT("MICIN"),
162 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
163 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
164 ssm260x_output_mixer_controls,
165 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
168 static const struct snd_soc_dapm_route ssm260x_routes[] = {
169 {"DAC", NULL, "Digital Core Power"},
170 {"ADC", NULL, "Digital Core Power"},
172 {"Output Mixer", "Line Bypass Switch", "Line Input"},
173 {"Output Mixer", "HiFi Playback Switch", "DAC"},
175 {"ROUT", NULL, "Output Mixer"},
176 {"LOUT", NULL, "Output Mixer"},
178 {"Line Input", NULL, "LLINEIN"},
179 {"Line Input", NULL, "RLINEIN"},
182 static const struct snd_soc_dapm_route ssm2602_routes[] = {
183 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
185 {"RHPOUT", NULL, "Output Mixer"},
186 {"LHPOUT", NULL, "Output Mixer"},
188 {"Input Mux", "Line", "Line Input"},
189 {"Input Mux", "Mic", "Mic Bias"},
190 {"ADC", NULL, "Input Mux"},
192 {"Mic Bias", NULL, "MICIN"},
195 static const struct snd_soc_dapm_route ssm2604_routes[] = {
196 {"ADC", NULL, "Line Input"},
199 struct ssm2602_coeff {
205 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
207 /* codec mclk clock coefficients */
208 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
210 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
211 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
212 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
215 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
216 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
217 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
220 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
221 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
222 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
223 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
224 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
227 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
228 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
229 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
232 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
233 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
234 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
237 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
238 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
239 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
242 static inline int ssm2602_get_coeff(int mclk, int rate)
246 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
247 if (ssm2602_coeff_table[i].rate == rate &&
248 ssm2602_coeff_table[i].mclk == mclk)
249 return ssm2602_coeff_table[i].srate;
254 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
255 struct snd_pcm_hw_params *params,
256 struct snd_soc_dai *dai)
258 struct snd_soc_pcm_runtime *rtd = substream->private_data;
259 struct snd_soc_codec *codec = rtd->codec;
260 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
261 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
262 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
264 if (substream == ssm2602->slave_substream) {
265 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
272 snd_soc_write(codec, SSM2602_SRATE, srate);
275 switch (params_format(params)) {
276 case SNDRV_PCM_FORMAT_S16_LE:
278 case SNDRV_PCM_FORMAT_S20_3LE:
281 case SNDRV_PCM_FORMAT_S24_LE:
284 case SNDRV_PCM_FORMAT_S32_LE:
288 snd_soc_write(codec, SSM2602_IFACE, iface);
292 static int ssm2602_startup(struct snd_pcm_substream *substream,
293 struct snd_soc_dai *dai)
295 struct snd_soc_pcm_runtime *rtd = substream->private_data;
296 struct snd_soc_codec *codec = rtd->codec;
297 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
298 struct snd_pcm_runtime *master_runtime;
300 /* The DAI has shared clocks so if we already have a playback or
301 * capture going then constrain this substream to match it.
302 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates
304 if (ssm2602->master_substream) {
305 master_runtime = ssm2602->master_substream->runtime;
306 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n",
307 master_runtime->sample_bits,
308 master_runtime->rate);
310 if (master_runtime->rate != 0)
311 snd_pcm_hw_constraint_minmax(substream->runtime,
312 SNDRV_PCM_HW_PARAM_RATE,
313 master_runtime->rate,
314 master_runtime->rate);
316 if (master_runtime->sample_bits != 0)
317 snd_pcm_hw_constraint_minmax(substream->runtime,
318 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
319 master_runtime->sample_bits,
320 master_runtime->sample_bits);
322 ssm2602->slave_substream = substream;
324 ssm2602->master_substream = substream;
329 static void ssm2602_shutdown(struct snd_pcm_substream *substream,
330 struct snd_soc_dai *dai)
332 struct snd_soc_pcm_runtime *rtd = substream->private_data;
333 struct snd_soc_codec *codec = rtd->codec;
334 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
336 if (ssm2602->master_substream == substream)
337 ssm2602->master_substream = ssm2602->slave_substream;
339 ssm2602->slave_substream = NULL;
343 static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
345 struct snd_soc_codec *codec = dai->codec;
348 snd_soc_update_bits(codec, SSM2602_APDIGI,
349 APDIGI_ENABLE_DAC_MUTE,
350 APDIGI_ENABLE_DAC_MUTE);
352 snd_soc_update_bits(codec, SSM2602_APDIGI,
353 APDIGI_ENABLE_DAC_MUTE, 0);
357 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
358 int clk_id, unsigned int freq, int dir)
360 struct snd_soc_codec *codec = codec_dai->codec;
361 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
363 if (dir == SND_SOC_CLOCK_IN) {
364 if (clk_id != SSM2602_SYSCLK)
373 ssm2602->sysclk = freq;
382 case SSM2602_CLK_CLKOUT:
383 mask = PWR_CLK_OUT_PDN;
385 case SSM2602_CLK_XTO:
393 ssm2602->clk_out_pwr |= mask;
395 ssm2602->clk_out_pwr &= ~mask;
397 snd_soc_update_bits(codec, SSM2602_PWR,
398 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
404 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
407 struct snd_soc_codec *codec = codec_dai->codec;
410 /* set master/slave audio interface */
411 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
412 case SND_SOC_DAIFMT_CBM_CFM:
415 case SND_SOC_DAIFMT_CBS_CFS:
421 /* interface format */
422 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
423 case SND_SOC_DAIFMT_I2S:
426 case SND_SOC_DAIFMT_RIGHT_J:
428 case SND_SOC_DAIFMT_LEFT_J:
431 case SND_SOC_DAIFMT_DSP_A:
434 case SND_SOC_DAIFMT_DSP_B:
441 /* clock inversion */
442 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
443 case SND_SOC_DAIFMT_NB_NF:
445 case SND_SOC_DAIFMT_IB_IF:
448 case SND_SOC_DAIFMT_IB_NF:
451 case SND_SOC_DAIFMT_NB_IF:
459 snd_soc_write(codec, SSM2602_IFACE, iface);
463 static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
464 enum snd_soc_bias_level level)
466 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
469 case SND_SOC_BIAS_ON:
470 /* vref/mid on, osc and clkout on if enabled */
471 snd_soc_update_bits(codec, SSM2602_PWR,
472 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
473 ssm2602->clk_out_pwr);
475 case SND_SOC_BIAS_PREPARE:
477 case SND_SOC_BIAS_STANDBY:
478 /* everything off except vref/vmid, */
479 snd_soc_update_bits(codec, SSM2602_PWR,
480 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
481 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
483 case SND_SOC_BIAS_OFF:
485 snd_soc_update_bits(codec, SSM2602_PWR,
486 PWR_POWER_OFF, PWR_POWER_OFF);
490 codec->dapm.bias_level = level;
494 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
495 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
496 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
498 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
499 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
501 static struct snd_soc_dai_ops ssm2602_dai_ops = {
502 .startup = ssm2602_startup,
503 .hw_params = ssm2602_hw_params,
504 .shutdown = ssm2602_shutdown,
505 .digital_mute = ssm2602_mute,
506 .set_sysclk = ssm2602_set_dai_sysclk,
507 .set_fmt = ssm2602_set_dai_fmt,
510 static struct snd_soc_dai_driver ssm2602_dai = {
511 .name = "ssm2602-hifi",
513 .stream_name = "Playback",
516 .rates = SSM2602_RATES,
517 .formats = SSM2602_FORMATS,},
519 .stream_name = "Capture",
522 .rates = SSM2602_RATES,
523 .formats = SSM2602_FORMATS,},
524 .ops = &ssm2602_dai_ops,
527 static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
529 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
533 static int ssm2602_resume(struct snd_soc_codec *codec)
535 snd_soc_cache_sync(codec);
537 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
542 static int ssm2602_probe(struct snd_soc_codec *codec)
544 struct snd_soc_dapm_context *dapm = &codec->dapm;
547 snd_soc_update_bits(codec, SSM2602_LOUT1V,
548 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
549 snd_soc_update_bits(codec, SSM2602_ROUT1V,
550 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
552 ret = snd_soc_add_controls(codec, ssm2602_snd_controls,
553 ARRAY_SIZE(ssm2602_snd_controls));
557 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
558 ARRAY_SIZE(ssm2602_dapm_widgets));
562 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
563 ARRAY_SIZE(ssm2602_routes));
566 static int ssm2604_probe(struct snd_soc_codec *codec)
568 struct snd_soc_dapm_context *dapm = &codec->dapm;
571 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
572 ARRAY_SIZE(ssm2604_dapm_widgets));
576 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
577 ARRAY_SIZE(ssm2604_routes));
580 static int ssm260x_probe(struct snd_soc_codec *codec)
582 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
585 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
587 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
589 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
593 ret = ssm2602_reset(codec);
595 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
599 /* set the update bits */
600 snd_soc_update_bits(codec, SSM2602_LINVOL,
601 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
602 snd_soc_update_bits(codec, SSM2602_RINVOL,
603 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
604 /*select Line in as default input*/
605 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
606 APANA_ENABLE_MIC_BOOST);
608 switch (ssm2602->type) {
610 ret = ssm2602_probe(codec);
613 ret = ssm2604_probe(codec);
620 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
625 /* remove everything here */
626 static int ssm2602_remove(struct snd_soc_codec *codec)
628 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
632 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
633 .probe = ssm260x_probe,
634 .remove = ssm2602_remove,
635 .suspend = ssm2602_suspend,
636 .resume = ssm2602_resume,
637 .set_bias_level = ssm2602_set_bias_level,
638 .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
639 .reg_word_size = sizeof(u16),
640 .reg_cache_default = ssm2602_reg,
642 .controls = ssm260x_snd_controls,
643 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
644 .dapm_widgets = ssm260x_dapm_widgets,
645 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
646 .dapm_routes = ssm260x_routes,
647 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
650 #if defined(CONFIG_SPI_MASTER)
651 static int __devinit ssm2602_spi_probe(struct spi_device *spi)
653 struct ssm2602_priv *ssm2602;
656 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
660 spi_set_drvdata(spi, ssm2602);
661 ssm2602->control_type = SND_SOC_SPI;
662 ssm2602->type = SSM2602;
664 ret = snd_soc_register_codec(&spi->dev,
665 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
671 static int __devexit ssm2602_spi_remove(struct spi_device *spi)
673 snd_soc_unregister_codec(&spi->dev);
674 kfree(spi_get_drvdata(spi));
678 static struct spi_driver ssm2602_spi_driver = {
681 .owner = THIS_MODULE,
683 .probe = ssm2602_spi_probe,
684 .remove = __devexit_p(ssm2602_spi_remove),
688 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
690 * ssm2602 2 wire address is determined by GPIO5
691 * state during powerup.
695 static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
696 const struct i2c_device_id *id)
698 struct ssm2602_priv *ssm2602;
701 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
705 i2c_set_clientdata(i2c, ssm2602);
706 ssm2602->control_type = SND_SOC_I2C;
707 ssm2602->type = id->driver_data;
709 ret = snd_soc_register_codec(&i2c->dev,
710 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
716 static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
718 snd_soc_unregister_codec(&client->dev);
719 kfree(i2c_get_clientdata(client));
723 static const struct i2c_device_id ssm2602_i2c_id[] = {
724 { "ssm2602", SSM2602 },
725 { "ssm2603", SSM2602 },
726 { "ssm2604", SSM2604 },
729 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
731 /* corgi i2c codec control layer */
732 static struct i2c_driver ssm2602_i2c_driver = {
735 .owner = THIS_MODULE,
737 .probe = ssm2602_i2c_probe,
738 .remove = __devexit_p(ssm2602_i2c_remove),
739 .id_table = ssm2602_i2c_id,
744 static int __init ssm2602_modinit(void)
748 #if defined(CONFIG_SPI_MASTER)
749 ret = spi_register_driver(&ssm2602_spi_driver);
754 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
755 ret = i2c_add_driver(&ssm2602_i2c_driver);
762 module_init(ssm2602_modinit);
764 static void __exit ssm2602_exit(void)
766 #if defined(CONFIG_SPI_MASTER)
767 spi_unregister_driver(&ssm2602_spi_driver);
770 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
771 i2c_del_driver(&ssm2602_i2c_driver);
774 module_exit(ssm2602_exit);
776 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
777 MODULE_AUTHOR("Cliff Cai");
778 MODULE_LICENSE("GPL");