/* * File: sound/soc/codecs/ssm2602.c * Author: Cliff Cai * * Created: Tue June 06 2008 * Description: Driver for ssm2602 sound chip * * Modified: * Copyright 2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see the file COPYING, or write * to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ssm2602.h" enum ssm2602_type { SSM2602, SSM2604, }; /* codec private data */ struct ssm2602_priv { unsigned int sysclk; const struct snd_pcm_hw_constraint_list *sysclk_constraints; struct regmap *regmap; enum ssm2602_type type; unsigned int clk_out_pwr; }; /* * ssm2602 register cache * We can't read the ssm2602 register space when we are * using 2 wire for device control, so we cache them instead. * There is no point in caching the reset register */ static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = { 0x0097, 0x0097, 0x0079, 0x0079, 0x000a, 0x0008, 0x009f, 0x000a, 0x0000, 0x0000 }; /*Appending several "None"s just for OSS mixer use*/ static const char *ssm2602_input_select[] = { "Line", "Mic", "None", "None", "None", "None", "None", "None", }; static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; static const struct soc_enum ssm2602_enum[] = { SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select), SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph), }; static const unsigned int ssm260x_outmix_tlv[] = { TLV_DB_RANGE_HEAD(2), 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0), 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0), }; static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); static const struct snd_kcontrol_new ssm260x_snd_controls[] = { SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, ssm260x_inpga_tlv), SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), }; static const struct snd_kcontrol_new ssm2602_snd_controls[] = { SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 0, 127, 0, ssm260x_outmix_tlv), SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 7, 1, 0), SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, ssm260x_sidetone_tlv), SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), }; /* Output Mixer */ static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), }; /* Input mux */ static const struct snd_kcontrol_new ssm2602_input_mux_controls = SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), SND_SOC_DAPM_OUTPUT("LOUT"), SND_SOC_DAPM_OUTPUT("ROUT"), SND_SOC_DAPM_INPUT("RLINEIN"), SND_SOC_DAPM_INPUT("LLINEIN"), }; static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, ssm260x_output_mixer_controls, ARRAY_SIZE(ssm260x_output_mixer_controls)), SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), SND_SOC_DAPM_OUTPUT("LHPOUT"), SND_SOC_DAPM_OUTPUT("RHPOUT"), SND_SOC_DAPM_INPUT("MICIN"), }; static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, ssm260x_output_mixer_controls, ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ }; static const struct snd_soc_dapm_route ssm260x_routes[] = { {"DAC", NULL, "Digital Core Power"}, {"ADC", NULL, "Digital Core Power"}, {"Output Mixer", "Line Bypass Switch", "Line Input"}, {"Output Mixer", "HiFi Playback Switch", "DAC"}, {"ROUT", NULL, "Output Mixer"}, {"LOUT", NULL, "Output Mixer"}, {"Line Input", NULL, "LLINEIN"}, {"Line Input", NULL, "RLINEIN"}, }; static const struct snd_soc_dapm_route ssm2602_routes[] = { {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, {"RHPOUT", NULL, "Output Mixer"}, {"LHPOUT", NULL, "Output Mixer"}, {"Input Mux", "Line", "Line Input"}, {"Input Mux", "Mic", "Mic Bias"}, {"ADC", NULL, "Input Mux"}, {"Mic Bias", NULL, "MICIN"}, }; static const struct snd_soc_dapm_route ssm2604_routes[] = { {"ADC", NULL, "Line Input"}, }; static const unsigned int ssm2602_rates_12288000[] = { 8000, 16000, 32000, 48000, 96000, }; static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = { .list = ssm2602_rates_12288000, .count = ARRAY_SIZE(ssm2602_rates_12288000), }; static const unsigned int ssm2602_rates_11289600[] = { 8000, 44100, 88200, }; static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = { .list = ssm2602_rates_11289600, .count = ARRAY_SIZE(ssm2602_rates_11289600), }; struct ssm2602_coeff { u32 mclk; u32 rate; u8 srate; }; #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb)) /* codec mclk clock coefficients */ static const struct ssm2602_coeff ssm2602_coeff_table[] = { /* 48k */ {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)}, {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)}, {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)}, /* 32k */ {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)}, {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)}, {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)}, /* 16k */ {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)}, {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)}, {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)}, /* 8k */ {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)}, {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)}, {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)}, {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)}, {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)}, /* 96k */ {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)}, {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)}, {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)}, /* 44.1k */ {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, /* 88.2k */ {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, }; static inline int ssm2602_get_coeff(int mclk, int rate) { int i; for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { if (ssm2602_coeff_table[i].rate == rate && ssm2602_coeff_table[i].mclk == mclk) return ssm2602_coeff_table[i].srate; } return -EINVAL; } static int ssm2602_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); unsigned int iface; if (srate < 0) return srate; regmap_write(ssm2602->regmap, SSM2602_SRATE, srate); /* bit size */ switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: iface = 0x0; break; case SNDRV_PCM_FORMAT_S20_3LE: iface = 0x4; break; case SNDRV_PCM_FORMAT_S24_LE: iface = 0x8; break; case SNDRV_PCM_FORMAT_S32_LE: iface = 0xc; break; default: return -EINVAL; } regmap_update_bits(ssm2602->regmap, SSM2602_IFACE, IFACE_AUDIO_DATA_LEN, iface); return 0; } static int ssm2602_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); if (ssm2602->sysclk_constraints) { snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, ssm2602->sysclk_constraints); } return 0; } static int ssm2602_mute(struct snd_soc_dai *dai, int mute) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec); if (mute) regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, APDIGI_ENABLE_DAC_MUTE, APDIGI_ENABLE_DAC_MUTE); else regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, APDIGI_ENABLE_DAC_MUTE, 0); return 0; } static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); if (dir == SND_SOC_CLOCK_IN) { if (clk_id != SSM2602_SYSCLK) return -EINVAL; switch (freq) { case 12288000: case 18432000: ssm2602->sysclk_constraints = &ssm2602_constraints_12288000; break; case 11289600: case 16934400: ssm2602->sysclk_constraints = &ssm2602_constraints_11289600; break; case 12000000: ssm2602->sysclk_constraints = NULL; break; default: return -EINVAL; } ssm2602->sysclk = freq; } else { unsigned int mask; switch (clk_id) { case SSM2602_CLK_CLKOUT: mask = PWR_CLK_OUT_PDN; break; case SSM2602_CLK_XTO: mask = PWR_OSC_PDN; break; default: return -EINVAL; } if (freq == 0) ssm2602->clk_out_pwr |= mask; else ssm2602->clk_out_pwr &= ~mask; regmap_update_bits(ssm2602->regmap, SSM2602_PWR, PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); } return 0; } static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec); unsigned int iface = 0; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: iface |= 0x0040; break; case SND_SOC_DAIFMT_CBS_CFS: break; default: return -EINVAL; } /* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: iface |= 0x0002; break; case SND_SOC_DAIFMT_RIGHT_J: break; case SND_SOC_DAIFMT_LEFT_J: iface |= 0x0001; break; case SND_SOC_DAIFMT_DSP_A: iface |= 0x0013; break; case SND_SOC_DAIFMT_DSP_B: iface |= 0x0003; break; default: return -EINVAL; } /* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_IF: iface |= 0x0090; break; case SND_SOC_DAIFMT_IB_NF: iface |= 0x0080; break; case SND_SOC_DAIFMT_NB_IF: iface |= 0x0010; break; default: return -EINVAL; } /* set iface */ regmap_write(ssm2602->regmap, SSM2602_IFACE, iface); return 0; } static int ssm2602_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); switch (level) { case SND_SOC_BIAS_ON: /* vref/mid on, osc and clkout on if enabled */ regmap_update_bits(ssm2602->regmap, SSM2602_PWR, PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: /* everything off except vref/vmid, */ regmap_update_bits(ssm2602->regmap, SSM2602_PWR, PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, PWR_CLK_OUT_PDN | PWR_OSC_PDN); break; case SND_SOC_BIAS_OFF: /* everything off */ regmap_update_bits(ssm2602->regmap, SSM2602_PWR, PWR_POWER_OFF, PWR_POWER_OFF); break; } codec->dapm.bias_level = level; return 0; } #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ SNDRV_PCM_RATE_96000) #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dai_ops ssm2602_dai_ops = { .startup = ssm2602_startup, .hw_params = ssm2602_hw_params, .digital_mute = ssm2602_mute, .set_sysclk = ssm2602_set_dai_sysclk, .set_fmt = ssm2602_set_dai_fmt, }; static struct snd_soc_dai_driver ssm2602_dai = { .name = "ssm2602-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = SSM2602_RATES, .formats = SSM2602_FORMATS,}, .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = SSM2602_RATES, .formats = SSM2602_FORMATS,}, .ops = &ssm2602_dai_ops, .symmetric_rates = 1, .symmetric_samplebits = 1, }; static int ssm2602_suspend(struct snd_soc_codec *codec) { ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int ssm2602_resume(struct snd_soc_codec *codec) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); regcache_sync(ssm2602->regmap); ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } static int ssm2602_probe(struct snd_soc_codec *codec) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V, LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V, ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, ARRAY_SIZE(ssm2602_snd_controls)); if (ret) return ret; ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, ARRAY_SIZE(ssm2602_dapm_widgets)); if (ret) return ret; return snd_soc_dapm_add_routes(dapm, ssm2602_routes, ARRAY_SIZE(ssm2602_routes)); } static int ssm2604_probe(struct snd_soc_codec *codec) { struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, ARRAY_SIZE(ssm2604_dapm_widgets)); if (ret) return ret; return snd_soc_dapm_add_routes(dapm, ssm2604_routes, ARRAY_SIZE(ssm2604_routes)); } static int ssm260x_probe(struct snd_soc_codec *codec) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); int ret; codec->control_data = ssm2602->regmap; ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP); if (ret < 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); return ret; } ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset: %d\n", ret); return ret; } /* set the update bits */ regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL, LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL, RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); /*select Line in as default input*/ regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC | APANA_ENABLE_MIC_BOOST); switch (ssm2602->type) { case SSM2602: ret = ssm2602_probe(codec); break; case SSM2604: ret = ssm2604_probe(codec); break; } if (ret) return ret; ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } /* remove everything here */ static int ssm2602_remove(struct snd_soc_codec *codec) { ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { .probe = ssm260x_probe, .remove = ssm2602_remove, .suspend = ssm2602_suspend, .resume = ssm2602_resume, .set_bias_level = ssm2602_set_bias_level, .controls = ssm260x_snd_controls, .num_controls = ARRAY_SIZE(ssm260x_snd_controls), .dapm_widgets = ssm260x_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), .dapm_routes = ssm260x_routes, .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), }; static bool ssm2602_register_volatile(struct device *dev, unsigned int reg) { return reg == SSM2602_RESET; } static const struct regmap_config ssm2602_regmap_config = { .val_bits = 9, .reg_bits = 7, .max_register = SSM2602_RESET, .volatile_reg = ssm2602_register_volatile, .cache_type = REGCACHE_RBTREE, .reg_defaults_raw = ssm2602_reg, .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg), }; #if defined(CONFIG_SPI_MASTER) static int ssm2602_spi_probe(struct spi_device *spi) { struct ssm2602_priv *ssm2602; int ret; ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv), GFP_KERNEL); if (ssm2602 == NULL) return -ENOMEM; spi_set_drvdata(spi, ssm2602); ssm2602->type = SSM2602; ssm2602->regmap = devm_regmap_init_spi(spi, &ssm2602_regmap_config); if (IS_ERR(ssm2602->regmap)) return PTR_ERR(ssm2602->regmap); ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_ssm2602, &ssm2602_dai, 1); return ret; } static int ssm2602_spi_remove(struct spi_device *spi) { snd_soc_unregister_codec(&spi->dev); return 0; } static struct spi_driver ssm2602_spi_driver = { .driver = { .name = "ssm2602", .owner = THIS_MODULE, }, .probe = ssm2602_spi_probe, .remove = ssm2602_spi_remove, }; #endif #if IS_ENABLED(CONFIG_I2C) /* * ssm2602 2 wire address is determined by GPIO5 * state during powerup. * low = 0x1a * high = 0x1b */ static int ssm2602_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct ssm2602_priv *ssm2602; int ret; ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv), GFP_KERNEL); if (ssm2602 == NULL) return -ENOMEM; i2c_set_clientdata(i2c, ssm2602); ssm2602->type = id->driver_data; ssm2602->regmap = devm_regmap_init_i2c(i2c, &ssm2602_regmap_config); if (IS_ERR(ssm2602->regmap)) return PTR_ERR(ssm2602->regmap); ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_ssm2602, &ssm2602_dai, 1); return ret; } static int ssm2602_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static const struct i2c_device_id ssm2602_i2c_id[] = { { "ssm2602", SSM2602 }, { "ssm2603", SSM2602 }, { "ssm2604", SSM2604 }, { } }; MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); /* corgi i2c codec control layer */ static struct i2c_driver ssm2602_i2c_driver = { .driver = { .name = "ssm2602", .owner = THIS_MODULE, }, .probe = ssm2602_i2c_probe, .remove = ssm2602_i2c_remove, .id_table = ssm2602_i2c_id, }; #endif static int __init ssm2602_modinit(void) { int ret = 0; #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&ssm2602_spi_driver); if (ret) return ret; #endif #if IS_ENABLED(CONFIG_I2C) ret = i2c_add_driver(&ssm2602_i2c_driver); if (ret) return ret; #endif return ret; } module_init(ssm2602_modinit); static void __exit ssm2602_exit(void) { #if defined(CONFIG_SPI_MASTER) spi_unregister_driver(&ssm2602_spi_driver); #endif #if IS_ENABLED(CONFIG_I2C) i2c_del_driver(&ssm2602_i2c_driver); #endif } module_exit(ssm2602_exit); MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); MODULE_AUTHOR("Cliff Cai"); MODULE_LICENSE("GPL");