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remarkable-linux/sound/soc/codecs/ml26124.c
Kuninori Morimoto e21413cab3 ASoC: codec duplicated callback function goes to component on ml26124 
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

613 lines
18 KiB
C
Raw Blame History

/*
* Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "ml26124.h"
#define DVOL_CTL_DVMUTE_ON BIT(4) /* Digital volume MUTE On */
#define DVOL_CTL_DVMUTE_OFF 0 /* Digital volume MUTE Off */
#define ML26124_SAI_NO_DELAY BIT(1)
#define ML26124_SAI_FRAME_SYNC (BIT(5) | BIT(0)) /* For mono (Telecodec) */
#define ML26134_CACHESIZE 212
#define ML26124_VMID BIT(1)
#define ML26124_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 |\
SNDRV_PCM_RATE_48000)
#define ML26124_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S32_LE)
#define ML26124_NUM_REGISTER ML26134_CACHESIZE
struct ml26124_priv {
u32 mclk;
u32 rate;
struct regmap *regmap;
int clk_in;
struct snd_pcm_substream *substream;
};
struct clk_coeff {
u32 mclk;
u32 rate;
u8 pllnl;
u8 pllnh;
u8 pllml;
u8 pllmh;
u8 plldiv;
};
/* ML26124 configuration */
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7150, 50, 0);
static const DECLARE_TLV_DB_SCALE(alclvl, -2250, 150, 0);
static const DECLARE_TLV_DB_SCALE(mingain, -1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(maxgain, -675, 600, 0);
static const DECLARE_TLV_DB_SCALE(boost_vol, -1200, 75, 0);
static const DECLARE_TLV_DB_SCALE(ngth, -7650, 150, 0);
static const char * const ml26124_companding[] = {"16bit PCM", "u-law",
"A-law"};
static SOC_ENUM_SINGLE_DECL(ml26124_adc_companding_enum,
ML26124_SAI_TRANS_CTL, 6, ml26124_companding);
static SOC_ENUM_SINGLE_DECL(ml26124_dac_companding_enum,
ML26124_SAI_RCV_CTL, 6, ml26124_companding);
static const struct snd_kcontrol_new ml26124_snd_controls[] = {
SOC_SINGLE_TLV("Capture Digital Volume", ML26124_RECORD_DIG_VOL, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("Playback Digital Volume", ML26124_PLBAK_DIG_VOL, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("Digital Boost Volume", ML26124_DIGI_BOOST_VOL, 0,
0x3f, 0, boost_vol),
SOC_SINGLE_TLV("EQ Band0 Volume", ML26124_EQ_GAIN_BRAND0, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("EQ Band1 Volume", ML26124_EQ_GAIN_BRAND1, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("EQ Band2 Volume", ML26124_EQ_GAIN_BRAND2, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("EQ Band3 Volume", ML26124_EQ_GAIN_BRAND3, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("EQ Band4 Volume", ML26124_EQ_GAIN_BRAND4, 0,
0xff, 1, digital_tlv),
SOC_SINGLE_TLV("ALC Target Level", ML26124_ALC_TARGET_LEV, 0,
0xf, 1, alclvl),
SOC_SINGLE_TLV("ALC Min Input Volume", ML26124_ALC_MAXMIN_GAIN, 0,
7, 0, mingain),
SOC_SINGLE_TLV("ALC Max Input Volume", ML26124_ALC_MAXMIN_GAIN, 4,
7, 1, maxgain),
SOC_SINGLE_TLV("Playback Limiter Min Input Volume",
ML26124_PL_MAXMIN_GAIN, 0, 7, 0, mingain),
SOC_SINGLE_TLV("Playback Limiter Max Input Volume",
ML26124_PL_MAXMIN_GAIN, 4, 7, 1, maxgain),
SOC_SINGLE_TLV("Playback Boost Volume", ML26124_PLYBAK_BOST_VOL, 0,
0x3f, 0, boost_vol),
SOC_SINGLE("DC High Pass Filter Switch", ML26124_FILTER_EN, 0, 1, 0),
SOC_SINGLE("Noise High Pass Filter Switch", ML26124_FILTER_EN, 1, 1, 0),
SOC_SINGLE("ZC Switch", ML26124_PW_ZCCMP_PW_MNG, 1,
1, 0),
SOC_SINGLE("EQ Band0 Switch", ML26124_FILTER_EN, 2, 1, 0),
SOC_SINGLE("EQ Band1 Switch", ML26124_FILTER_EN, 3, 1, 0),
SOC_SINGLE("EQ Band2 Switch", ML26124_FILTER_EN, 4, 1, 0),
SOC_SINGLE("EQ Band3 Switch", ML26124_FILTER_EN, 5, 1, 0),
SOC_SINGLE("EQ Band4 Switch", ML26124_FILTER_EN, 6, 1, 0),
SOC_SINGLE("Play Limiter", ML26124_DVOL_CTL, 0, 1, 0),
SOC_SINGLE("Capture Limiter", ML26124_DVOL_CTL, 1, 1, 0),
SOC_SINGLE("Digital Volume Fade Switch", ML26124_DVOL_CTL, 3, 1, 0),
SOC_SINGLE("Digital Switch", ML26124_DVOL_CTL, 4, 1, 0),
SOC_ENUM("DAC Companding", ml26124_dac_companding_enum),
SOC_ENUM("ADC Companding", ml26124_adc_companding_enum),
};
static const struct snd_kcontrol_new ml26124_output_mixer_controls[] = {
SOC_DAPM_SINGLE("DAC Switch", ML26124_SPK_AMP_OUT, 1, 1, 0),
SOC_DAPM_SINGLE("Line in loopback Switch", ML26124_SPK_AMP_OUT, 3, 1,
0),
SOC_DAPM_SINGLE("PGA Switch", ML26124_SPK_AMP_OUT, 5, 1, 0),
};
/* Input mux */
static const char * const ml26124_input_select[] = {"Analog MIC SingleEnded in",
"Digital MIC in", "Analog MIC Differential in"};
static SOC_ENUM_SINGLE_DECL(ml26124_insel_enum,
ML26124_MIC_IF_CTL, 0, ml26124_input_select);
static const struct snd_kcontrol_new ml26124_input_mux_controls =
SOC_DAPM_ENUM("Input Select", ml26124_insel_enum);
static const struct snd_kcontrol_new ml26124_line_control =
SOC_DAPM_SINGLE("Switch", ML26124_PW_LOUT_PW_MNG, 1, 1, 0);
static const struct snd_soc_dapm_widget ml26124_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("MCLKEN", ML26124_CLK_EN, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLLEN", ML26124_CLK_EN, 1, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLLOE", ML26124_CLK_EN, 2, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MICBIAS", ML26124_PW_REF_PW_MNG, 2, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
&ml26124_output_mixer_controls[0],
ARRAY_SIZE(ml26124_output_mixer_controls)),
SND_SOC_DAPM_DAC("DAC", "Playback", ML26124_PW_DAC_PW_MNG, 1, 0),
SND_SOC_DAPM_ADC("ADC", "Capture", ML26124_PW_IN_PW_MNG, 1, 0),
SND_SOC_DAPM_PGA("PGA", ML26124_PW_IN_PW_MNG, 3, 0, NULL, 0),
SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
&ml26124_input_mux_controls),
SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
&ml26124_line_control),
SND_SOC_DAPM_INPUT("MDIN"),
SND_SOC_DAPM_INPUT("MIN"),
SND_SOC_DAPM_INPUT("LIN"),
SND_SOC_DAPM_OUTPUT("SPOUT"),
SND_SOC_DAPM_OUTPUT("LOUT"),
};
static const struct snd_soc_dapm_route ml26124_intercon[] = {
/* Supply */
{"DAC", NULL, "MCLKEN"},
{"ADC", NULL, "MCLKEN"},
{"DAC", NULL, "PLLEN"},
{"ADC", NULL, "PLLEN"},
{"DAC", NULL, "PLLOE"},
{"ADC", NULL, "PLLOE"},
/* output mixer */
{"Output Mixer", "DAC Switch", "DAC"},
{"Output Mixer", "Line in loopback Switch", "LIN"},
/* outputs */
{"LOUT", NULL, "Output Mixer"},
{"SPOUT", NULL, "Output Mixer"},
{"Line Out Enable", NULL, "LOUT"},
/* input */
{"ADC", NULL, "Input Mux"},
{"Input Mux", "Analog MIC SingleEnded in", "PGA"},
{"Input Mux", "Analog MIC Differential in", "PGA"},
{"PGA", NULL, "MIN"},
};
/* PLLOutputFreq(Hz) = InputMclkFreq(Hz) * PLLM / (PLLN * PLLDIV) */
static const struct clk_coeff coeff_div[] = {
{12288000, 16000, 0xc, 0x0, 0x20, 0x0, 0x4},
{12288000, 32000, 0xc, 0x0, 0x20, 0x0, 0x4},
{12288000, 48000, 0xc, 0x0, 0x30, 0x0, 0x4},
};
static const struct reg_default ml26124_reg[] = {
/* CLOCK control Register */
{0x00, 0x00 }, /* Sampling Rate */
{0x02, 0x00}, /* PLL NL */
{0x04, 0x00}, /* PLLNH */
{0x06, 0x00}, /* PLLML */
{0x08, 0x00}, /* MLLMH */
{0x0a, 0x00}, /* PLLDIV */
{0x0c, 0x00}, /* Clock Enable */
{0x0e, 0x00}, /* CLK Input/Output Control */
/* System Control Register */
{0x10, 0x00}, /* Software RESET */
{0x12, 0x00}, /* Record/Playback Run */
{0x14, 0x00}, /* Mic Input/Output control */
/* Power Management Register */
{0x20, 0x00}, /* Reference Power Management */
{0x22, 0x00}, /* Input Power Management */
{0x24, 0x00}, /* DAC Power Management */
{0x26, 0x00}, /* SP-AMP Power Management */
{0x28, 0x00}, /* LINEOUT Power Management */
{0x2a, 0x00}, /* VIDEO Power Management */
{0x2e, 0x00}, /* AC-CMP Power Management */
/* Analog reference Control Register */
{0x30, 0x04}, /* MICBIAS Voltage Control */
/* Input/Output Amplifier Control Register */
{0x32, 0x10}, /* MIC Input Volume */
{0x38, 0x00}, /* Mic Boost Volume */
{0x3a, 0x33}, /* Speaker AMP Volume */
{0x48, 0x00}, /* AMP Volume Control Function Enable */
{0x4a, 0x00}, /* Amplifier Volume Fader Control */
/* Analog Path Control Register */
{0x54, 0x00}, /* Speaker AMP Output Control */
{0x5a, 0x00}, /* Mic IF Control */
{0xe8, 0x01}, /* Mic Select Control */
/* Audio Interface Control Register */
{0x60, 0x00}, /* SAI-Trans Control */
{0x62, 0x00}, /* SAI-Receive Control */
{0x64, 0x00}, /* SAI Mode select */
/* DSP Control Register */
{0x66, 0x01}, /* Filter Func Enable */
{0x68, 0x00}, /* Volume Control Func Enable */
{0x6A, 0x00}, /* Mixer & Volume Control*/
{0x6C, 0xff}, /* Record Digital Volume */
{0x70, 0xff}, /* Playback Digital Volume */
{0x72, 0x10}, /* Digital Boost Volume */
{0x74, 0xe7}, /* EQ gain Band0 */
{0x76, 0xe7}, /* EQ gain Band1 */
{0x78, 0xe7}, /* EQ gain Band2 */
{0x7A, 0xe7}, /* EQ gain Band3 */
{0x7C, 0xe7}, /* EQ gain Band4 */
{0x7E, 0x00}, /* HPF2 CutOff*/
{0x80, 0x00}, /* EQ Band0 Coef0L */
{0x82, 0x00}, /* EQ Band0 Coef0H */
{0x84, 0x00}, /* EQ Band0 Coef0L */
{0x86, 0x00}, /* EQ Band0 Coef0H */
{0x88, 0x00}, /* EQ Band1 Coef0L */
{0x8A, 0x00}, /* EQ Band1 Coef0H */
{0x8C, 0x00}, /* EQ Band1 Coef0L */
{0x8E, 0x00}, /* EQ Band1 Coef0H */
{0x90, 0x00}, /* EQ Band2 Coef0L */
{0x92, 0x00}, /* EQ Band2 Coef0H */
{0x94, 0x00}, /* EQ Band2 Coef0L */
{0x96, 0x00}, /* EQ Band2 Coef0H */
{0x98, 0x00}, /* EQ Band3 Coef0L */
{0x9A, 0x00}, /* EQ Band3 Coef0H */
{0x9C, 0x00}, /* EQ Band3 Coef0L */
{0x9E, 0x00}, /* EQ Band3 Coef0H */
{0xA0, 0x00}, /* EQ Band4 Coef0L */
{0xA2, 0x00}, /* EQ Band4 Coef0H */
{0xA4, 0x00}, /* EQ Band4 Coef0L */
{0xA6, 0x00}, /* EQ Band4 Coef0H */
/* ALC Control Register */
{0xb0, 0x00}, /* ALC Mode */
{0xb2, 0x02}, /* ALC Attack Time */
{0xb4, 0x03}, /* ALC Decay Time */
{0xb6, 0x00}, /* ALC Hold Time */
{0xb8, 0x0b}, /* ALC Target Level */
{0xba, 0x70}, /* ALC Max/Min Gain */
{0xbc, 0x00}, /* Noise Gate Threshold */
{0xbe, 0x00}, /* ALC ZeroCross TimeOut */
/* Playback Limiter Control Register */
{0xc0, 0x04}, /* PL Attack Time */
{0xc2, 0x05}, /* PL Decay Time */
{0xc4, 0x0d}, /* PL Target Level */
{0xc6, 0x70}, /* PL Max/Min Gain */
{0xc8, 0x10}, /* Playback Boost Volume */
{0xca, 0x00}, /* PL ZeroCross TimeOut */
/* Video Amplifier Control Register */
{0xd0, 0x01}, /* VIDEO AMP Gain Control */
{0xd2, 0x01}, /* VIDEO AMP Setup 1 */
{0xd4, 0x01}, /* VIDEO AMP Control2 */
};
/* Get sampling rate value of sampling rate setting register (0x0) */
static inline int get_srate(int rate)
{
int srate;
switch (rate) {
case 16000:
srate = 3;
break;
case 32000:
srate = 6;
break;
case 48000:
srate = 8;
break;
default:
return -EINVAL;
}
return srate;
}
static inline int get_coeff(int mclk, int rate)
{
int i;
for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
return i;
}
return -EINVAL;
}
static int ml26124_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
int i = get_coeff(priv->mclk, params_rate(hw_params));
int srate;
if (i < 0)
return i;
priv->substream = substream;
priv->rate = params_rate(hw_params);
if (priv->clk_in) {
switch (priv->mclk / params_rate(hw_params)) {
case 256:
snd_soc_update_bits(codec, ML26124_CLK_CTL,
BIT(0) | BIT(1), 1);
break;
case 512:
snd_soc_update_bits(codec, ML26124_CLK_CTL,
BIT(0) | BIT(1), 2);
break;
case 1024:
snd_soc_update_bits(codec, ML26124_CLK_CTL,
BIT(0) | BIT(1), 3);
break;
default:
dev_err(codec->dev, "Unsupported MCLKI\n");
break;
}
} else {
snd_soc_update_bits(codec, ML26124_CLK_CTL,
BIT(0) | BIT(1), 0);
}
srate = get_srate(params_rate(hw_params));
if (srate < 0)
return srate;
snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf, srate);
snd_soc_update_bits(codec, ML26124_PLLNL, 0xff, coeff_div[i].pllnl);
snd_soc_update_bits(codec, ML26124_PLLNH, 0x1, coeff_div[i].pllnh);
snd_soc_update_bits(codec, ML26124_PLLML, 0xff, coeff_div[i].pllml);
snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f, coeff_div[i].pllmh);
snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f, coeff_div[i].plldiv);
return 0;
}
static int ml26124_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
switch (priv->substream->stream) {
case SNDRV_PCM_STREAM_CAPTURE:
snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(0), 1);
break;
case SNDRV_PCM_STREAM_PLAYBACK:
snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(1), 2);
break;
}
if (mute)
snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
DVOL_CTL_DVMUTE_ON);
else
snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
DVOL_CTL_DVMUTE_OFF);
return 0;
}
static int ml26124_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
unsigned char mode;
struct snd_soc_codec *codec = codec_dai->codec;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
mode = 1;
break;
case SND_SOC_DAIFMT_CBS_CFS:
mode = 0;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(codec, ML26124_SAI_MODE_SEL, BIT(0), mode);
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
default:
return -EINVAL;
}
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
default:
return -EINVAL;
}
return 0;
}
static int ml26124_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 ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
switch (clk_id) {
case ML26124_USE_PLLOUT:
priv->clk_in = ML26124_USE_PLLOUT;
break;
case ML26124_USE_MCLKI:
priv->clk_in = ML26124_USE_MCLKI;
break;
default:
return -EINVAL;
}
priv->mclk = freq;
return 0;
}
static int ml26124_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
switch (level) {
case SND_SOC_BIAS_ON:
snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
ML26124_R26_MASK, ML26124_BLT_PREAMP_ON);
msleep(100);
snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
ML26124_R26_MASK,
ML26124_MICBEN_ON | ML26124_BLT_ALL_ON);
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
/* VMID ON */
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
ML26124_VMID, ML26124_VMID);
msleep(500);
regcache_sync(priv->regmap);
}
break;
case SND_SOC_BIAS_OFF:
/* VMID OFF */
snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
ML26124_VMID, 0);
break;
}
return 0;
}
static const struct snd_soc_dai_ops ml26124_dai_ops = {
.hw_params = ml26124_hw_params,
.digital_mute = ml26124_mute,
.set_fmt = ml26124_set_dai_fmt,
.set_sysclk = ml26124_set_dai_sysclk,
};
static struct snd_soc_dai_driver ml26124_dai = {
.name = "ml26124-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = ML26124_RATES,
.formats = ML26124_FORMATS,},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = ML26124_RATES,
.formats = ML26124_FORMATS,},
.ops = &ml26124_dai_ops,
.symmetric_rates = 1,
};
static int ml26124_probe(struct snd_soc_codec *codec)
{
/* Software Reset */
snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 1);
snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 0);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_ml26124 = {
.probe = ml26124_probe,
.set_bias_level = ml26124_set_bias_level,
.suspend_bias_off = true,
.component_driver = {
.controls = ml26124_snd_controls,
.num_controls = ARRAY_SIZE(ml26124_snd_controls),
.dapm_widgets = ml26124_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(ml26124_dapm_widgets),
.dapm_routes = ml26124_intercon,
.num_dapm_routes = ARRAY_SIZE(ml26124_intercon),
},
};
static const struct regmap_config ml26124_i2c_regmap = {
.val_bits = 8,
.reg_bits = 8,
.max_register = ML26124_NUM_REGISTER,
.reg_defaults = ml26124_reg,
.num_reg_defaults = ARRAY_SIZE(ml26124_reg),
.cache_type = REGCACHE_RBTREE,
.write_flag_mask = 0x01,
};
static int ml26124_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct ml26124_priv *priv;
int ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
i2c_set_clientdata(i2c, priv);
priv->regmap = devm_regmap_init_i2c(i2c, &ml26124_i2c_regmap);
if (IS_ERR(priv->regmap)) {
ret = PTR_ERR(priv->regmap);
dev_err(&i2c->dev, "regmap_init_i2c() failed: %d\n", ret);
return ret;
}
return snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_ml26124, &ml26124_dai, 1);
}
static int ml26124_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
return 0;
}
static const struct i2c_device_id ml26124_i2c_id[] = {
{ "ml26124", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ml26124_i2c_id);
static struct i2c_driver ml26124_i2c_driver = {
.driver = {
.name = "ml26124",
},
.probe = ml26124_i2c_probe,
.remove = ml26124_i2c_remove,
.id_table = ml26124_i2c_id,
};
module_i2c_driver(ml26124_i2c_driver);
MODULE_AUTHOR("Tomoya MORINAGA <tomoya.rohm@gmail.com>");
MODULE_DESCRIPTION("LAPIS Semiconductor ML26124 ALSA SoC codec driver");
MODULE_LICENSE("GPL");
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