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linux_dsm_epyc7002/sound/soc/codecs/ssm2602.c
Kuninori Morimoto 21c822343f ASoC: codec duplicated callback function goes to component on ssm2602 
codec driver and component driver has duplicated callback functions,
and codec side functions are just copied to component side when
register timing. This was quick-hack, but no longer needed.
This patch moves these functions from codec driver to component driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:57:57 +01:00

652 lines
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/*
* File: sound/soc/codecs/ssm2602.c
* Author: Cliff Cai <Cliff.Cai@analog.com>
*
* 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 <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "ssm2602.h"
/* 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",
};
static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
static const struct soc_enum ssm2602_enum[] = {
SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
ssm2602_input_select),
SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
ssm2602_deemph),
};
static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
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, 11025, 22050, 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)},
/* 11.025k */
{11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
{16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
{12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
/* 22.05k */
{11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
{16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
{12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 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_width(params)) {
case 16:
iface = 0x0;
break;
case 20:
iface = 0x4;
break;
case 24:
iface = 0x8;
break;
case 32:
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;
}
return 0;
}
#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
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_resume(struct snd_soc_codec *codec)
{
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
regcache_sync(ssm2602->regmap);
return 0;
}
static int ssm2602_codec_probe(struct snd_soc_codec *codec)
{
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
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_codec_probe(struct snd_soc_codec *codec)
{
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
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_codec_probe(struct snd_soc_codec *codec)
{
struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
int 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_codec_probe(codec);
break;
case SSM2604:
ret = ssm2604_codec_probe(codec);
break;
}
return ret;
}
static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
.probe = ssm260x_codec_probe,
.resume = ssm2602_resume,
.set_bias_level = ssm2602_set_bias_level,
.suspend_bias_off = true,
.component_driver = {
.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;
}
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),
};
EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
int ssm2602_probe(struct device *dev, enum ssm2602_type type,
struct regmap *regmap)
{
struct ssm2602_priv *ssm2602;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
if (ssm2602 == NULL)
return -ENOMEM;
dev_set_drvdata(dev, ssm2602);
ssm2602->type = type;
ssm2602->regmap = regmap;
return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602,
&ssm2602_dai, 1);
}
EXPORT_SYMBOL_GPL(ssm2602_probe);
MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
MODULE_AUTHOR("Cliff Cai");
MODULE_LICENSE("GPL");
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