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/regmap.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>
52 /* codec private data */
55 struct snd_pcm_hw_constraint_list *sysclk_constraints;
57 struct regmap *regmap;
59 enum ssm2602_type type;
60 unsigned int clk_out_pwr;
64 * ssm2602 register cache
65 * We can't read the ssm2602 register space when we are
66 * using 2 wire for device control, so we cache them instead.
67 * There is no point in caching the reset register
69 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
70 0x0097, 0x0097, 0x0079, 0x0079,
71 0x000a, 0x0008, 0x009f, 0x000a,
76 /*Appending several "None"s just for OSS mixer use*/
77 static const char *ssm2602_input_select[] = {
78 "Line", "Mic", "None", "None", "None",
79 "None", "None", "None",
82 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
84 static const struct soc_enum ssm2602_enum[] = {
85 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
86 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
89 static const unsigned int ssm260x_outmix_tlv[] = {
91 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
92 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
95 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
96 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
98 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
99 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
101 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
103 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
104 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
106 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
109 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
110 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
111 0, 127, 0, ssm260x_outmix_tlv),
112 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
114 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
115 ssm260x_sidetone_tlv),
117 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
118 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
119 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
123 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
124 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
125 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
126 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
130 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
131 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
133 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
134 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
135 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
136 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
138 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
140 SND_SOC_DAPM_OUTPUT("LOUT"),
141 SND_SOC_DAPM_OUTPUT("ROUT"),
142 SND_SOC_DAPM_INPUT("RLINEIN"),
143 SND_SOC_DAPM_INPUT("LLINEIN"),
146 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
147 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
148 ssm260x_output_mixer_controls,
149 ARRAY_SIZE(ssm260x_output_mixer_controls)),
151 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
152 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
154 SND_SOC_DAPM_OUTPUT("LHPOUT"),
155 SND_SOC_DAPM_OUTPUT("RHPOUT"),
156 SND_SOC_DAPM_INPUT("MICIN"),
159 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
160 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
161 ssm260x_output_mixer_controls,
162 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
165 static const struct snd_soc_dapm_route ssm260x_routes[] = {
166 {"DAC", NULL, "Digital Core Power"},
167 {"ADC", NULL, "Digital Core Power"},
169 {"Output Mixer", "Line Bypass Switch", "Line Input"},
170 {"Output Mixer", "HiFi Playback Switch", "DAC"},
172 {"ROUT", NULL, "Output Mixer"},
173 {"LOUT", NULL, "Output Mixer"},
175 {"Line Input", NULL, "LLINEIN"},
176 {"Line Input", NULL, "RLINEIN"},
179 static const struct snd_soc_dapm_route ssm2602_routes[] = {
180 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
182 {"RHPOUT", NULL, "Output Mixer"},
183 {"LHPOUT", NULL, "Output Mixer"},
185 {"Input Mux", "Line", "Line Input"},
186 {"Input Mux", "Mic", "Mic Bias"},
187 {"ADC", NULL, "Input Mux"},
189 {"Mic Bias", NULL, "MICIN"},
192 static const struct snd_soc_dapm_route ssm2604_routes[] = {
193 {"ADC", NULL, "Line Input"},
196 static const unsigned int ssm2602_rates_12288000[] = {
197 8000, 32000, 48000, 96000,
200 static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
201 .list = ssm2602_rates_12288000,
202 .count = ARRAY_SIZE(ssm2602_rates_12288000),
205 static const unsigned int ssm2602_rates_11289600[] = {
209 static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
210 .list = ssm2602_rates_11289600,
211 .count = ARRAY_SIZE(ssm2602_rates_11289600),
214 struct ssm2602_coeff {
220 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
222 /* codec mclk clock coefficients */
223 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
225 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
226 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
227 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
230 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
231 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
232 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
235 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
236 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
237 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
238 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
239 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
242 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
243 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
244 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
247 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
248 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
249 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
252 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
253 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
254 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
257 static inline int ssm2602_get_coeff(int mclk, int rate)
261 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
262 if (ssm2602_coeff_table[i].rate == rate &&
263 ssm2602_coeff_table[i].mclk == mclk)
264 return ssm2602_coeff_table[i].srate;
269 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
270 struct snd_pcm_hw_params *params,
271 struct snd_soc_dai *dai)
273 struct snd_soc_codec *codec = dai->codec;
274 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
275 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
281 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
284 switch (params_format(params)) {
285 case SNDRV_PCM_FORMAT_S16_LE:
288 case SNDRV_PCM_FORMAT_S20_3LE:
291 case SNDRV_PCM_FORMAT_S24_LE:
294 case SNDRV_PCM_FORMAT_S32_LE:
300 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
301 IFACE_AUDIO_DATA_LEN, iface);
305 static int ssm2602_startup(struct snd_pcm_substream *substream,
306 struct snd_soc_dai *dai)
308 struct snd_soc_codec *codec = dai->codec;
309 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
311 if (ssm2602->sysclk_constraints) {
312 snd_pcm_hw_constraint_list(substream->runtime, 0,
313 SNDRV_PCM_HW_PARAM_RATE,
314 ssm2602->sysclk_constraints);
320 static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
322 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
325 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
326 APDIGI_ENABLE_DAC_MUTE,
327 APDIGI_ENABLE_DAC_MUTE);
329 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
330 APDIGI_ENABLE_DAC_MUTE, 0);
334 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
335 int clk_id, unsigned int freq, int dir)
337 struct snd_soc_codec *codec = codec_dai->codec;
338 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
340 if (dir == SND_SOC_CLOCK_IN) {
341 if (clk_id != SSM2602_SYSCLK)
347 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
351 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
354 ssm2602->sysclk_constraints = NULL;
359 ssm2602->sysclk = freq;
364 case SSM2602_CLK_CLKOUT:
365 mask = PWR_CLK_OUT_PDN;
367 case SSM2602_CLK_XTO:
375 ssm2602->clk_out_pwr |= mask;
377 ssm2602->clk_out_pwr &= ~mask;
379 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
380 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
386 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
389 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
390 unsigned int iface = 0;
392 /* set master/slave audio interface */
393 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
394 case SND_SOC_DAIFMT_CBM_CFM:
397 case SND_SOC_DAIFMT_CBS_CFS:
403 /* interface format */
404 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
405 case SND_SOC_DAIFMT_I2S:
408 case SND_SOC_DAIFMT_RIGHT_J:
410 case SND_SOC_DAIFMT_LEFT_J:
413 case SND_SOC_DAIFMT_DSP_A:
416 case SND_SOC_DAIFMT_DSP_B:
423 /* clock inversion */
424 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
425 case SND_SOC_DAIFMT_NB_NF:
427 case SND_SOC_DAIFMT_IB_IF:
430 case SND_SOC_DAIFMT_IB_NF:
433 case SND_SOC_DAIFMT_NB_IF:
441 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
445 static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
446 enum snd_soc_bias_level level)
448 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
451 case SND_SOC_BIAS_ON:
452 /* vref/mid on, osc and clkout on if enabled */
453 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
454 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
455 ssm2602->clk_out_pwr);
457 case SND_SOC_BIAS_PREPARE:
459 case SND_SOC_BIAS_STANDBY:
460 /* everything off except vref/vmid, */
461 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
462 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
463 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
465 case SND_SOC_BIAS_OFF:
467 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
468 PWR_POWER_OFF, PWR_POWER_OFF);
472 codec->dapm.bias_level = level;
476 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
477 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
478 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
480 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
481 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
483 static const struct snd_soc_dai_ops ssm2602_dai_ops = {
484 .startup = ssm2602_startup,
485 .hw_params = ssm2602_hw_params,
486 .digital_mute = ssm2602_mute,
487 .set_sysclk = ssm2602_set_dai_sysclk,
488 .set_fmt = ssm2602_set_dai_fmt,
491 static struct snd_soc_dai_driver ssm2602_dai = {
492 .name = "ssm2602-hifi",
494 .stream_name = "Playback",
497 .rates = SSM2602_RATES,
498 .formats = SSM2602_FORMATS,},
500 .stream_name = "Capture",
503 .rates = SSM2602_RATES,
504 .formats = SSM2602_FORMATS,},
505 .ops = &ssm2602_dai_ops,
506 .symmetric_rates = 1,
507 .symmetric_samplebits = 1,
510 static int ssm2602_suspend(struct snd_soc_codec *codec)
512 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
516 static int ssm2602_resume(struct snd_soc_codec *codec)
518 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
520 regcache_sync(ssm2602->regmap);
521 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
526 static int ssm2602_probe(struct snd_soc_codec *codec)
528 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
529 struct snd_soc_dapm_context *dapm = &codec->dapm;
532 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
533 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
534 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
535 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
537 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
538 ARRAY_SIZE(ssm2602_snd_controls));
542 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
543 ARRAY_SIZE(ssm2602_dapm_widgets));
547 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
548 ARRAY_SIZE(ssm2602_routes));
551 static int ssm2604_probe(struct snd_soc_codec *codec)
553 struct snd_soc_dapm_context *dapm = &codec->dapm;
556 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
557 ARRAY_SIZE(ssm2604_dapm_widgets));
561 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
562 ARRAY_SIZE(ssm2604_routes));
565 static int ssm260x_probe(struct snd_soc_codec *codec)
567 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
570 codec->control_data = ssm2602->regmap;
571 ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
573 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
577 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
579 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
583 /* set the update bits */
584 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
585 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
586 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
587 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
588 /*select Line in as default input*/
589 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
590 APANA_ENABLE_MIC_BOOST);
592 switch (ssm2602->type) {
594 ret = ssm2602_probe(codec);
597 ret = ssm2604_probe(codec);
604 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
609 /* remove everything here */
610 static int ssm2602_remove(struct snd_soc_codec *codec)
612 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
616 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
617 .probe = ssm260x_probe,
618 .remove = ssm2602_remove,
619 .suspend = ssm2602_suspend,
620 .resume = ssm2602_resume,
621 .set_bias_level = ssm2602_set_bias_level,
623 .controls = ssm260x_snd_controls,
624 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
625 .dapm_widgets = ssm260x_dapm_widgets,
626 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
627 .dapm_routes = ssm260x_routes,
628 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
631 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
633 return reg == SSM2602_RESET;
636 static const struct regmap_config ssm2602_regmap_config = {
640 .max_register = SSM2602_RESET,
641 .volatile_reg = ssm2602_register_volatile,
643 .cache_type = REGCACHE_RBTREE,
644 .reg_defaults_raw = ssm2602_reg,
645 .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg),
648 #if defined(CONFIG_SPI_MASTER)
649 static int ssm2602_spi_probe(struct spi_device *spi)
651 struct ssm2602_priv *ssm2602;
654 ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv),
659 spi_set_drvdata(spi, ssm2602);
660 ssm2602->type = SSM2602;
662 ssm2602->regmap = devm_regmap_init_spi(spi, &ssm2602_regmap_config);
663 if (IS_ERR(ssm2602->regmap))
664 return PTR_ERR(ssm2602->regmap);
666 ret = snd_soc_register_codec(&spi->dev,
667 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
671 static int ssm2602_spi_remove(struct spi_device *spi)
673 snd_soc_unregister_codec(&spi->dev);
677 static struct spi_driver ssm2602_spi_driver = {
680 .owner = THIS_MODULE,
682 .probe = ssm2602_spi_probe,
683 .remove = ssm2602_spi_remove,
687 #if IS_ENABLED(CONFIG_I2C)
689 * ssm2602 2 wire address is determined by GPIO5
690 * state during powerup.
694 static int ssm2602_i2c_probe(struct i2c_client *i2c,
695 const struct i2c_device_id *id)
697 struct ssm2602_priv *ssm2602;
700 ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv),
705 i2c_set_clientdata(i2c, ssm2602);
706 ssm2602->type = id->driver_data;
708 ssm2602->regmap = devm_regmap_init_i2c(i2c, &ssm2602_regmap_config);
709 if (IS_ERR(ssm2602->regmap))
710 return PTR_ERR(ssm2602->regmap);
712 ret = snd_soc_register_codec(&i2c->dev,
713 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
717 static int ssm2602_i2c_remove(struct i2c_client *client)
719 snd_soc_unregister_codec(&client->dev);
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 = 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 IS_ENABLED(CONFIG_I2C)
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 IS_ENABLED(CONFIG_I2C)
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");