sound/soc/codecs: add LAPIS Semiconductor ML26124

ML26124-01HB/ML26124-02GD is 16bit monaural audio CODEC which has high resistance to voltage noise. On chip regulator realizes power supply rejection ratio be over 90dB so more than 50dB is improved than ever. ML26124-01HB/ ML26124-02GD can deliver stable audio performance without being affected by noise from the power supply circuit and peripheral components. The chip also includes a composite video signal output, which can be applied to various portable device
requirements. The ML26124 is realized these functions into very small package
the size is only 2.56mm x 2.46mm therefore can be construct high quality sound system easily.
ML26124-01HB is 25pin WCSP package; ML26124-02GD is 32pin WQFN package.

---
 sound/soc/codecs/Kconfig   |    4 +
 sound/soc/codecs/Makefile  |    2 +
 sound/soc/codecs/ml26124.c |  595 ++++++++++++++++++++++++++++++++++++++++++++
 sound/soc/codecs/ml26124.h |  122 +++++++++
 4 files changed, 723 insertions(+), 0 deletions(-)
 create mode 100644 sound/soc/codecs/ml26124.c
 create mode 100644 sound/soc/codecs/ml26124.h

index 665d924..ce8e622 100644
@@ -38,6 +38,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MAX98095 if I2C
 	select SND_SOC_MAX9850 if I2C
 	select SND_SOC_MAX9877 if I2C
+	select SND_SOC_ML26124 if I2C
 	select SND_SOC_PCM3008
 	select SND_SOC_SGTL5000 if I2C
 	select SND_SOC_SN95031 if INTEL_SCU_IPC

@@ -211,6 +212,9 @@ config SND_SOC_MAX98095
 config SND_SOC_MAX9850
 	tristate
 
+config SND_SOC_ML26124
+	tristate
+
 config SND_SOC_PCM3008
        tristate
 

index 5119a7e..c1353ff 100644
@@ -24,6 +24,7 @@ snd-soc-l3-objs := l3.o
 snd-soc-max98088-objs := max98088.o
 snd-soc-max98095-objs := max98095.o
 snd-soc-max9850-objs := max9850.o
+snd-soc-ml26124-objs := ml26124.o
 snd-soc-pcm3008-objs := pcm3008.o
 snd-soc-sgtl5000-objs := sgtl5000.o
 snd-soc-alc5623-objs := alc5623.o

@@ -122,6 +123,7 @@ obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o
 obj-$(CONFIG_SND_SOC_MAX98088)	+= snd-soc-max98088.o
 obj-$(CONFIG_SND_SOC_MAX98095)	+= snd-soc-max98095.o
 obj-$(CONFIG_SND_SOC_MAX9850)	+= snd-soc-max9850.o
+obj-$(CONFIG_SND_SOC_ML26124)   += snd-soc-ml26124.o
 obj-$(CONFIG_SND_SOC_PCM3008)	+= snd-soc-pcm3008.o
 obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o
 obj-$(CONFIG_SND_SOC_SN95031)	+=snd-soc-sn95031.o

1.7.4.4

Given the questions you just asked myself and Lars-Peter it seems fairly clear that the review comments from the previous version so I'm not going to review this, please resend once the review comments have been addressed. Lars-Peter concern seemed especially serious, I'd expect large sections of the audio functionality to not work without being connected to the DAPM map.

In general if resubmitting code that has outstanding review issues you should highlight the known issues and explain why you are resending; usually if there's an active discussion in progress it's better to wait for that to die down.

Hi Mark and Peter,

Let me discuss about intercon settings.

Anticipated routes are like below.
Analog MIC(single ended) -> PGA -> ADC -> SAI
Analog MIC(differential) -> PGA -> ADC -> SAI
Digital MIC -> SAI
SAI -> DAC -> SPOUT
SAI -> DAC -> LOUT
LINEIN -> SPOUT

So, I set like below.
Please give us your opinion.

/* 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 const struct soc_enum ml26124_adc_companding_enum
	= SOC_ENUM_SINGLE(ML26124_SAI_TRANS_CTL, 6, 3, ml26124_companding);
static const struct soc_enum ml26124_dac_companding_enum
	= SOC_ENUM_SINGLE(ML26124_SAI_RCV_CTL, 6, 3, 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 Input Volume", ML26124_EQ_GAIN_BRAND0, 0,
			0xff, 1, digital_tlv),
	SOC_SINGLE_TLV("EQ Band1 Input Volume", ML26124_EQ_GAIN_BRAND1, 0,
			0xff, 1, digital_tlv),
	SOC_SINGLE_TLV("EQ Band2 Input Volume", ML26124_EQ_GAIN_BRAND2, 0,
			0xff, 1, digital_tlv),
	SOC_SINGLE_TLV("EQ Band3 Input Volume", ML26124_EQ_GAIN_BRAND3, 0,
			0xff, 1, digital_tlv),
	SOC_SINGLE_TLV("EQ Band4 Input 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 Limitter Min Input Volume",
			ML26124_PL_MAXMIN_GAIN, 0, 7, 0, mingain),
	SOC_SINGLE_TLV("Playback Limitter 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("Zero Cross Comparator 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 Limitter", ML26124_DVOL_CTL, 0, 1, 0),
	SOC_SINGLE("Capture Limitter", 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", 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",

						    "Analog MIC Differential in"
						    "Digital MIC in"};

static const struct soc_enum ml26124_insel_enum =

	SOC_ENUM_SINGLE(ML26124_MIC_IF_CTL, 0, 2, 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("MCLK", ML26124_CLK_EN, 0, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("PLL", ML26124_CLK_EN, 1, 0, NULL, 0),
	SND_SOC_DAPM_MICBIAS("MICBIAS", ML26124_PW_REF_PW_MNG, 0, 0),
	SND_SOC_DAPM_MIXER("Output Mixer", ML26124_PW_SPAMP_PW_MNG, 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, "MCLK"},
	{"ADC", NULL, "MCLK"},
	{"DAC", NULL, "PLL"},
	{"ADC", NULL, "PLL"},

	/* output mixer */
	{"Output Mixer", "PGA Switch", "PGA"},
	{"Output Mixer", "DAC Switch", "DAC"},
	{"Output Mixer", NULL, "Line in"},

	/* outputs */
	{"LOUT", "Line Out Enable", "Output Mixer"},
	{"SPOUT", NULL, "Output Mixer"},

	/* input */
	{"Input Mux", "Analog MIC SingleEnded in", "MIN"},
	{"Input Mux", "Analog MIC Differential in", "MIN"},
	{"Input Mux", "Digital MIC in", "MDIN"},
	{"ADC", "PGA", "Input Mux"},
};