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From:   Matt Porter <mporter@konsulko.com>
To:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>
Cc:     alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] ASoC: add tda7419 audio processor driver
Date:   Tue, 27 Feb 2018 17:51:28 -0500
Message-Id: <20180227225128.17815-3-mporter@konsulko.com>
In-Reply-To: <20180227225128.17815-1-mporter@konsulko.com>
References: <20180227225128.17815-1-mporter@konsulko.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Component driver for the tda7419 audio processor.

Signed-off-by: Matt Porter <mporter@konsulko.com>
---
 sound/soc/codecs/Kconfig   |   6 +
 sound/soc/codecs/Makefile  |   2 +
 sound/soc/codecs/tda7419.c | 571 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 579 insertions(+)
 create mode 100644 sound/soc/codecs/tda7419.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 2b331f7266ab..1553cf2b9445 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -151,6 +151,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_TAS571X if I2C
 	select SND_SOC_TAS5720 if I2C
 	select SND_SOC_TAS6424 if I2C
+	select SND_SOC_TDA7419 if I2C
 	select SND_SOC_TFA9879 if I2C
 	select SND_SOC_TLV320AIC23_I2C if I2C
 	select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
@@ -910,6 +911,11 @@ config SND_SOC_TAS6424
 	  Enable support for Texas Instruments TAS6424 high-efficiency
 	  digital input quad-channel Class-D audio power amplifiers.
 
+config SND_SOC_TDA7419
+	tristate "ST TDA7419 audio processor"
+	depends on I2C
+	select REGMAP_I2C
+
 config SND_SOC_TFA9879
 	tristate "NXP Semiconductors TFA9879 amplifier"
 	depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index da1571336f1e..6cf3c3b92cb5 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -160,6 +160,7 @@ snd-soc-tas5086-objs := tas5086.o
 snd-soc-tas571x-objs := tas571x.o
 snd-soc-tas5720-objs := tas5720.o
 snd-soc-tas6424-objs := tas6424.o
+snd-soc-tda7419-objs := tda7419.o
 snd-soc-tfa9879-objs := tfa9879.o
 snd-soc-tlv320aic23-objs := tlv320aic23.o
 snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
@@ -405,6 +406,7 @@ obj-$(CONFIG_SND_SOC_TAS5086)	+= snd-soc-tas5086.o
 obj-$(CONFIG_SND_SOC_TAS571X)	+= snd-soc-tas571x.o
 obj-$(CONFIG_SND_SOC_TAS5720)	+= snd-soc-tas5720.o
 obj-$(CONFIG_SND_SOC_TAS6424)	+= snd-soc-tas6424.o
+obj-$(CONFIG_SND_SOC_TDA7419)	+= snd-soc-tda7419.o
 obj-$(CONFIG_SND_SOC_TFA9879)	+= snd-soc-tfa9879.o
 obj-$(CONFIG_SND_SOC_TLV320AIC23)	+= snd-soc-tlv320aic23.o
 obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C)	+= snd-soc-tlv320aic23-i2c.o
diff --git a/sound/soc/codecs/tda7419.c b/sound/soc/codecs/tda7419.c
new file mode 100644
index 000000000000..97a7d21b8f2a
--- /dev/null
+++ b/sound/soc/codecs/tda7419.c
@@ -0,0 +1,571 @@
+/*
+ * TDA7419 audio processor driver
+ *
+ * Copyright 2018 Konsulko Group
+ *
+ * Author: Matt Porter <mporter@konsulko.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define TDA7419_MAIN_SRC_REG		0x00
+#define TDA7419_LOUDNESS_REG		0x01
+#define TDA7419_MUTE_CLK_REG		0x02
+#define TDA7419_VOLUME_REG		0x03
+#define TDA7419_TREBLE_REG		0x04
+#define TDA7419_MIDDLE_REG		0x05
+#define TDA7419_BASS_REG		0x06
+#define TDA7419_SECOND_SRC_REG		0x07
+#define TDA7419_SUB_MID_BASS_REG	0x08
+#define TDA7419_MIXING_GAIN_REG		0x09
+#define TDA7419_ATTENUATOR_LF_REG	0x0a
+#define TDA7419_ATTENUATOR_RF_REG	0x0b
+#define TDA7419_ATTENUATOR_LR_REG	0x0c
+#define TDA7419_ATTENUATOR_RR_REG	0x0d
+#define TDA7419_MIXING_LEVEL_REG	0x0e
+#define TDA7419_ATTENUATOR_SUB_REG	0x0f
+#define TDA7419_SA_CLK_AC_REG		0x10
+#define TDA7419_TESTING_REG		0x11
+
+#define TDA7419_MAIN_SRC_SEL		0
+#define TDA7419_MAIN_SRC_GAIN		3
+#define TDA7419_MAIN_SRC_AUTOZERO	7
+
+#define TDA7419_LOUDNESS_ATTEN		0
+#define TDA7419_LOUDNESS_CENTER_FREQ	4
+#define TDA7419_LOUDNESS_BOOST		6
+#define TDA7419_LOUDNESS_SOFT_STEP	7
+
+#define TDA7419_VOLUME_SOFT_STEP	7
+
+#define TDA7419_SOFT_MUTE		0
+#define TDA7419_MUTE_INFLUENCE		1
+#define TDA7419_SOFT_MUTE_TIME		2
+#define TDA7419_SOFT_STEP_TIME		4
+#define TDA7419_CLK_FAST_MODE		7
+
+#define TDA7419_TREBLE_CENTER_FREQ	5
+#define TDA7419_REF_OUT_SELECT		7
+
+#define TDA7419_MIDDLE_Q_FACTOR		5
+#define TDA7419_MIDDLE_SOFT_STEP	7
+
+#define TDA7419_BASS_Q_FACTOR		5
+#define TDA7419_BASS_SOFT_STEP		7
+
+#define TDA7419_SECOND_SRC_SEL		0
+#define TDA7419_SECOND_SRC_GAIN		3
+#define TDA7419_REAR_SPKR_SRC		7
+
+#define TDA7419_SUB_CUT_OFF_FREQ	0
+#define TDA7419_MIDDLE_CENTER_FREQ	2
+#define TDA7419_BASS_CENTER_FREQ	4
+#define TDA7419_BASS_DC_MODE		6
+#define TDA7419_SMOOTHING_FILTER	7
+
+#define TDA7419_MIX_LF			0
+#define TDA7419_MIX_RF			1
+#define TDA7419_MIX_ENABLE		2
+#define TDA7419_SUB_ENABLE		3
+#define TDA7419_HPF_GAIN		4
+
+#define TDA7419_SA_Q_FACTOR		0
+#define TDA7419_RESET_MODE		1
+#define TDA7419_SA_SOURCE		2
+#define TDA7419_SA_RUN			3
+#define TDA7419_RESET			4
+#define TDA7419_CLK_SOURCE		5
+#define TDA7419_COUPLING_MODE		6
+
+struct tda7419_data {
+	struct regmap *regmap;
+};
+
+static bool tda7419_writeable_reg(struct device *dev, unsigned int reg)
+{
+	return true;
+}
+
+static bool tda7419_readable_reg(struct device *dev, unsigned int reg)
+{
+	return false;
+}
+
+static const struct reg_default tda7419_regmap_defaults[] = {
+	{ TDA7419_MAIN_SRC_REG,	0xfe },
+	{ TDA7419_LOUDNESS_REG, 0xfe },
+	{ TDA7419_MUTE_CLK_REG, 0xfe },
+	{ TDA7419_VOLUME_REG, 0xfe },
+	{ TDA7419_TREBLE_REG, 0xfe },
+	{ TDA7419_MIDDLE_REG, 0xfe },
+	{ TDA7419_BASS_REG, 0xfe },
+	{ TDA7419_SECOND_SRC_REG, 0xfe },
+	{ TDA7419_SUB_MID_BASS_REG, 0xfe },
+	{ TDA7419_MIXING_GAIN_REG, 0xfe },
+	{ TDA7419_ATTENUATOR_LF_REG, 0xfe },
+	{ TDA7419_ATTENUATOR_RF_REG, 0xfe },
+	{ TDA7419_ATTENUATOR_LR_REG, 0xfe },
+	{ TDA7419_ATTENUATOR_RR_REG, 0xfe },
+	{ TDA7419_MIXING_LEVEL_REG, 0xfe },
+	{ TDA7419_ATTENUATOR_SUB_REG, 0xfe },
+	{ TDA7419_SA_CLK_AC_REG, 0xfe },
+	{ TDA7419_TESTING_REG, 0xfe },
+};
+
+static const struct regmap_config tda7419_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = TDA7419_TESTING_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.writeable_reg = tda7419_writeable_reg,
+	.readable_reg = tda7419_readable_reg,
+	.reg_defaults = tda7419_regmap_defaults,
+	.num_reg_defaults = ARRAY_SIZE(tda7419_regmap_defaults),
+};
+
+struct tda7419_vol_control {
+	int min, max;
+	unsigned int reg, rreg, mask, thresh;
+	unsigned int invert:1;
+};
+
+static inline bool tda7419_vol_is_stereo(struct tda7419_vol_control *tvc)
+{
+	if (tvc->reg == tvc->rreg)
+		return 0;
+
+	return 1;
+}
+
+static int tda7419_vol_info(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo)
+{
+	struct tda7419_vol_control *tvc =
+		(struct tda7419_vol_control *)kcontrol->private_value;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = tda7419_vol_is_stereo(tvc) ? 2 : 1;
+	uinfo->value.integer.min = tvc->min;
+	uinfo->value.integer.max = tvc->max;
+
+	return 0;
+}
+
+static inline int tda7419_vol_get_value(int val, unsigned int mask,
+					int thresh, unsigned int invert)
+{
+	val &= mask;
+	if (val < thresh) {
+		if (invert)
+			val = 0 - val;
+	} else if (val > thresh) {
+		if (invert)
+			val = val - thresh;
+		else
+			val = thresh - val;
+	}
+
+	return val;
+}
+
+static int tda7419_vol_get(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct tda7419_vol_control *tvc =
+		(struct tda7419_vol_control *)kcontrol->private_value;
+	unsigned int reg = tvc->reg;
+	unsigned int rreg = tvc->rreg;
+	unsigned int mask = tvc->mask;
+	int thresh = tvc->thresh;
+	unsigned int invert = tvc->invert;
+	int val;
+	int ret;
+
+	ret = snd_soc_component_read(component, reg, &val);
+	if (ret < 0)
+		return ret;
+	ucontrol->value.integer.value[0] =
+		tda7419_vol_get_value(val, mask, thresh, invert);
+
+	if (tda7419_vol_is_stereo(tvc)) {
+		ret = snd_soc_component_read(component, rreg, &val);
+		if (ret < 0)
+			return ret;
+		ucontrol->value.integer.value[1] =
+			tda7419_vol_get_value(val, mask, thresh, invert);
+	}
+
+	return 0;
+}
+
+static inline int tda7419_vol_put_value(int val, int thresh,
+					unsigned int invert)
+{
+	if (val < 0) {
+		if (invert)
+			val = abs(val);
+		else
+			val = thresh - val;
+	} else if ((val > 0) && invert) {
+		val += thresh;
+	}
+
+	return val;
+}
+
+static int tda7419_vol_put(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component =
+		snd_kcontrol_chip(kcontrol);
+	struct tda7419_vol_control *tvc =
+		(struct tda7419_vol_control *)kcontrol->private_value;
+	unsigned int reg = tvc->reg;
+	unsigned int rreg = tvc->rreg;
+	unsigned int mask = tvc->mask;
+	int thresh = tvc->thresh;
+	unsigned int invert = tvc->invert;
+	int val;
+	int ret;
+
+	val = tda7419_vol_put_value(ucontrol->value.integer.value[0],
+				    thresh, invert);
+	ret = snd_soc_component_update_bits(component, reg,
+					    mask, val);
+	if (ret < 0)
+		return ret;
+
+	if (tda7419_vol_is_stereo(tvc)) {
+		val = tda7419_vol_put_value(ucontrol->value.integer.value[1],
+					    thresh, invert);
+		ret = snd_soc_component_update_bits(component, rreg,
+						    mask, val);
+	}
+
+	return ret;
+}
+
+#define TDA7419_SINGLE_VALUE(xreg, xmask, xmin, xmax, xthresh, xinvert) \
+	((unsigned long)&(struct tda7419_vol_control) \
+	{.reg = xreg, .rreg = xreg, .mask = xmask, .min = xmin, \
+	 .max = xmax, .thresh = xthresh, .invert = xinvert})
+
+#define TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, xmin, xmax, xthresh, \
+			       xinvert) \
+	((unsigned long)&(struct tda7419_vol_control) \
+	{.reg = xregl, .rreg = xregr, .mask = xmask, .min = xmin, \
+	 .max = xmax, .thresh = xthresh, .invert = xinvert})
+
+#define TDA7419_SINGLE_TLV(xname, xreg, xmask, xmin, xmax, xthresh, \
+			   xinvert, xtlv_array) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+	.name = xname, \
+	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+		SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+	.tlv.p = (xtlv_array), \
+	.info = tda7419_vol_info, \
+	.get = tda7419_vol_get, \
+	.put = tda7419_vol_put, \
+	.private_value = TDA7419_SINGLE_VALUE(xreg, xmask, xmin, \
+					      xmax, xthresh, xinvert), \
+}
+
+#define TDA7419_DOUBLE_R_TLV(xname, xregl, xregr, xmask, xmin, xmax, \
+			     xthresh, xinvert, xtlv_array) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+	.name = xname, \
+	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+		SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+	.tlv.p = (xtlv_array), \
+	.info = tda7419_vol_info, \
+	.get = tda7419_vol_get, \
+	.put = tda7419_vol_put, \
+	.private_value = TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, \
+						xmin, xmax, xthresh, \
+						xinvert), \
+}
+
+static const char * const enum_src_sel[] = {
+	"QD", "SE1", "SE2", "SE3", "SE", "Mute", "Mute", "Mute"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_main_src_sel,
+	TDA7419_MAIN_SRC_REG, TDA7419_MAIN_SRC_SEL, enum_src_sel);
+static DECLARE_TLV_DB_SCALE(tlv_src_gain, 0, 100, 0);
+
+static DECLARE_TLV_DB_SCALE(tlv_loudness_atten, -1500, 100, 0);
+static const char * const enum_loudness_center_freq[] = {
+	"Flat", "400 Hz", "800 Hz", "2400 Hz"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_loudness_center_freq,
+	TDA7419_LOUDNESS_REG, TDA7419_LOUDNESS_CENTER_FREQ,
+	enum_loudness_center_freq);
+static const char * const enum_mute_influence[] = {
+	"Pin and IIC", "IIC"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_mute_influence,
+	TDA7419_MUTE_CLK_REG, TDA7419_MUTE_INFLUENCE, enum_mute_influence);
+static const char * const enum_soft_mute_time[] = {
+	"0.48 ms", "0.96 ms", "123 ms", "123 ms"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_soft_mute_time,
+	TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE_TIME, enum_soft_mute_time);
+static const char * const enum_soft_step_time[] = {
+	"0.160 ms", "0.321 ms", "0.642 ms", "1.28 ms",
+	"2.56 ms", "5.12 ms", "10.24 ms", "20.48 ms"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_soft_step_time,
+	TDA7419_MUTE_CLK_REG, TDA7419_SOFT_STEP_TIME, enum_soft_step_time);
+static DECLARE_TLV_DB_SCALE(tlv_volume, -8000, 100, 1);
+static const char * const enum_treble_center_freq[] = {
+	"10.0 kHz", "12.5 kHz", "15.0 kHz", "17.5 kHz"};
+static DECLARE_TLV_DB_SCALE(tlv_filter, -1500, 100, 0);
+static SOC_ENUM_SINGLE_DECL(soc_enum_treble_center_freq,
+	TDA7419_TREBLE_REG, TDA7419_TREBLE_CENTER_FREQ,
+	enum_treble_center_freq);
+static const char * const enum_ref_out_select[] = {
+	"External Vref (4 V)", "Internal Vref (3.3 V)"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_ref_out_select,
+	TDA7419_TREBLE_REG, TDA7419_REF_OUT_SELECT, enum_ref_out_select);
+static const char * const enum_middle_q_factor[] = {
+	"0.5", "0.75", "1.0", "1.25"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_middle_q_factor,
+	TDA7419_MIDDLE_REG, TDA7419_MIDDLE_Q_FACTOR, enum_middle_q_factor);
+static const char * const enum_bass_q_factor[] = {
+	"1.0", "1.25", "1.5", "2.0"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_bass_q_factor,
+	TDA7419_BASS_REG, TDA7419_BASS_Q_FACTOR, enum_bass_q_factor);
+static SOC_ENUM_SINGLE_DECL(soc_enum_second_src_sel,
+	TDA7419_SECOND_SRC_REG, TDA7419_SECOND_SRC_SEL, enum_src_sel);
+static const char * const enum_rear_spkr_src[] = {
+	"Main", "Second"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_rear_spkr_src,
+	TDA7419_SECOND_SRC_REG, TDA7419_REAR_SPKR_SRC, enum_rear_spkr_src);
+static const char * const enum_sub_cut_off_freq[] = {
+	"Flat", "80 Hz", "120 Hz", "160 Hz"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_sub_cut_off_freq,
+	TDA7419_SUB_MID_BASS_REG, TDA7419_SUB_CUT_OFF_FREQ,
+	enum_sub_cut_off_freq);
+static const char * const enum_middle_center_freq[] = {
+	"500 Hz", "1000 Hz", "1500 Hz", "2500 Hz"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_middle_center_freq,
+	TDA7419_SUB_MID_BASS_REG, TDA7419_MIDDLE_CENTER_FREQ,
+	enum_middle_center_freq);
+static const char * const enum_bass_center_freq[] = {
+	"60 Hz", "80 Hz", "100 Hz", "200 Hz"};
+static SOC_ENUM_SINGLE_DECL(soc_enum_bass_center_freq,
+	TDA7419_SUB_MID_BASS_REG, TDA7419_BASS_CENTER_FREQ,
+	enum_bass_center_freq);
+static DECLARE_TLV_DB_SCALE(tlv_hpf_gain, 400, 200, 0);
+static const char * const enum_sa_q_factor[] = {
+	"3.5", "1.75" };
+static SOC_ENUM_SINGLE_DECL(soc_enum_sa_q_factor,
+	TDA7419_SA_CLK_AC_REG, TDA7419_SA_Q_FACTOR, enum_sa_q_factor);
+static const char * const enum_reset_mode[] = {
+	"IIC", "Auto" };
+static SOC_ENUM_SINGLE_DECL(soc_enum_reset_mode,
+	TDA7419_SA_CLK_AC_REG, TDA7419_RESET_MODE, enum_reset_mode);
+static const char * const enum_sa_src[] = {
+	"Bass", "In Gain" };
+static SOC_ENUM_SINGLE_DECL(soc_enum_sa_src,
+	TDA7419_SA_CLK_AC_REG, TDA7419_SA_SOURCE, enum_sa_src);
+static const char * const enum_clk_src[] = {
+	"Internal", "External" };
+static SOC_ENUM_SINGLE_DECL(soc_enum_clk_src,
+	TDA7419_SA_CLK_AC_REG, TDA7419_CLK_SOURCE, enum_clk_src);
+static const char * const enum_coupling_mode[] = {
+	"DC Coupling (without HPF)", "AC Coupling after In Gain",
+	"DC Coupling (with HPF)", "AC Coupling after Bass" };
+static SOC_ENUM_SINGLE_DECL(soc_enum_coupling_mode,
+	TDA7419_SA_CLK_AC_REG, TDA7419_COUPLING_MODE, enum_coupling_mode);
+
+/* ASoC Controls */
+static struct snd_kcontrol_new tda7419_controls[] = {
+SOC_ENUM("Main Source Select", soc_enum_main_src_sel),
+SOC_SINGLE_TLV("Main Source Capture Volume", TDA7419_MAIN_SRC_REG,
+	       TDA7419_MAIN_SRC_GAIN, 15, 0, tlv_src_gain),
+SOC_SINGLE("Main Source AutoZero", TDA7419_MAIN_SRC_REG,
+	   TDA7419_MAIN_SRC_AUTOZERO, 1, 1),
+SOC_SINGLE_TLV("Loudness Playback Volume", TDA7419_LOUDNESS_REG,
+	       TDA7419_LOUDNESS_ATTEN, 15, 1, tlv_loudness_atten),
+SOC_ENUM("Loudness Center Frequency", soc_enum_loudness_center_freq),
+SOC_SINGLE("Loudness High Boost", TDA7419_LOUDNESS_REG,
+	   TDA7419_LOUDNESS_BOOST, 1, 1),
+SOC_SINGLE("Loudness Soft Step", TDA7419_LOUDNESS_REG,
+	   TDA7419_LOUDNESS_SOFT_STEP, 1, 1),
+SOC_SINGLE("Soft Mute", TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE, 1, 1),
+SOC_ENUM("Mute Influence", soc_enum_mute_influence),
+SOC_ENUM("Soft Mute Time", soc_enum_soft_mute_time),
+SOC_ENUM("Soft Step Time", soc_enum_soft_step_time),
+SOC_SINGLE("Clock Fast Mode", TDA7419_MUTE_CLK_REG,
+	   TDA7419_CLK_FAST_MODE, 1, 1),
+TDA7419_SINGLE_TLV("Master Playback Volume", TDA7419_VOLUME_REG,
+		   0x7f, -80, 15, 0x10, 0, tlv_volume),
+SOC_SINGLE("Volume Soft Step", TDA7419_VOLUME_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+TDA7419_SINGLE_TLV("Treble Playback Volume", TDA7419_TREBLE_REG,
+		   0x1f, -15, 15, 0x10, 1, tlv_filter),
+SOC_ENUM("Treble Center Frequency", soc_enum_treble_center_freq),
+SOC_ENUM("Reference Output Select", soc_enum_ref_out_select),
+TDA7419_SINGLE_TLV("Middle Playback Volume", TDA7419_MIDDLE_REG,
+		   0x1f, -15, 15, 0x10, 1, tlv_filter),
+SOC_ENUM("Middle Q Factor", soc_enum_middle_q_factor),
+SOC_SINGLE("Middle Soft Step", TDA7419_MIDDLE_REG,
+	   TDA7419_MIDDLE_SOFT_STEP, 1, 1),
+TDA7419_SINGLE_TLV("Bass Playback Volume", TDA7419_BASS_REG,
+		   0x1f, -15, 15, 0x10, 1, tlv_filter),
+SOC_ENUM("Bass Q Factor", soc_enum_bass_q_factor),
+SOC_SINGLE("Bass Soft Step", TDA7419_BASS_REG,
+	   TDA7419_BASS_SOFT_STEP, 1, 1),
+SOC_ENUM("Second Source Select", soc_enum_second_src_sel),
+SOC_SINGLE_TLV("Second Source Capture Volume", TDA7419_SECOND_SRC_REG,
+	       TDA7419_SECOND_SRC_GAIN, 15, 0, tlv_src_gain),
+SOC_ENUM("Rear Speaker Source", soc_enum_rear_spkr_src),
+SOC_ENUM("Subwoofer Cut-off Frequency", soc_enum_sub_cut_off_freq),
+SOC_ENUM("Middle Center Frequency", soc_enum_middle_center_freq),
+SOC_ENUM("Bass Center Frequency", soc_enum_bass_center_freq),
+SOC_SINGLE("Bass DC Mode", TDA7419_SUB_MID_BASS_REG,
+	   TDA7419_BASS_DC_MODE, 1, 1),
+SOC_SINGLE("Smoothing Filter", TDA7419_SUB_MID_BASS_REG,
+	   TDA7419_SMOOTHING_FILTER, 1, 1),
+SOC_SINGLE("Mix to LF Speaker", TDA7419_MIXING_GAIN_REG,
+	   TDA7419_MIX_LF, 1, 1),
+SOC_SINGLE("Mix to RF Speaker", TDA7419_MIXING_GAIN_REG,
+	   TDA7419_MIX_RF, 1, 1),
+SOC_SINGLE("Mix Enable", TDA7419_MIXING_GAIN_REG, TDA7419_MIX_ENABLE, 1, 1),
+SOC_SINGLE("Subwoofer Enable", TDA7419_MIXING_GAIN_REG,
+	   TDA7419_SUB_ENABLE, 1, 1),
+SOC_SINGLE_TLV("HPF Filter Playback Volume", TDA7419_MIXING_GAIN_REG,
+	       TDA7419_HPF_GAIN, 9, 0, tlv_hpf_gain),
+TDA7419_DOUBLE_R_TLV("Front Playback Volume", TDA7419_ATTENUATOR_LF_REG,
+		     TDA7419_ATTENUATOR_RF_REG, 0x7f, -80, 15, 0x10, 0,
+		     tlv_volume),
+SOC_SINGLE("Left Front Soft Step", TDA7419_ATTENUATOR_LF_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+SOC_SINGLE("Right Front Soft Step", TDA7419_ATTENUATOR_RF_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+TDA7419_DOUBLE_R_TLV("Rear Playback Volume", TDA7419_ATTENUATOR_LR_REG,
+		     TDA7419_ATTENUATOR_RR_REG, 0x7f, -80, 15, 0x10, 0,
+		     tlv_volume),
+SOC_SINGLE("Left Rear Soft Step", TDA7419_ATTENUATOR_LR_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+SOC_SINGLE("Right Rear Soft Step", TDA7419_ATTENUATOR_RR_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+TDA7419_SINGLE_TLV("Mixing Capture Volume", TDA7419_MIXING_LEVEL_REG,
+		   0x7f, -80, 15, 0x10, 0, tlv_volume),
+SOC_SINGLE("Mixing Level Soft Step", TDA7419_MIXING_LEVEL_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+TDA7419_SINGLE_TLV("Subwoofer Playback Volume", TDA7419_ATTENUATOR_SUB_REG,
+		   0x7f, -80, 15, 0x10, 0, tlv_volume),
+SOC_SINGLE("Subwoofer Soft Step", TDA7419_ATTENUATOR_SUB_REG,
+	   TDA7419_VOLUME_SOFT_STEP, 1, 1),
+SOC_ENUM("Spectrum Analyzer Q Factor", soc_enum_sa_q_factor),
+SOC_ENUM("Spectrum Analyzer Reset Mode", soc_enum_reset_mode),
+SOC_ENUM("Spectrum Analyzer Source", soc_enum_sa_src),
+SOC_SINGLE("Spectrum Analyzer Run", TDA7419_SA_CLK_AC_REG,
+	   TDA7419_SA_RUN, 1, 1),
+SOC_SINGLE("Spectrum Analyzer Reset", TDA7419_SA_CLK_AC_REG,
+	   TDA7419_RESET, 1, 1),
+SOC_ENUM("Clock Source", soc_enum_clk_src),
+SOC_ENUM("Coupling Mode", soc_enum_coupling_mode),
+};
+
+static const struct snd_soc_component_driver tda7419_component_driver = {
+	.name			= "tda7419",
+	.controls		= tda7419_controls,
+	.num_controls		= ARRAY_SIZE(tda7419_controls),
+};
+
+static int tda7419_probe(struct i2c_client *i2c,
+			 const struct i2c_device_id *id)
+{
+	struct tda7419_data *tda7419;
+	int ret;
+
+	tda7419 = devm_kzalloc(&i2c->dev,
+			       sizeof(struct tda7419_data),
+			       GFP_KERNEL);
+	if (tda7419 == NULL)
+		return -ENOMEM;
+
+	i2c_set_clientdata(i2c, tda7419);
+
+	tda7419->regmap = devm_regmap_init_i2c(i2c, &tda7419_regmap_config);
+	if (IS_ERR(tda7419->regmap)) {
+		ret = PTR_ERR(tda7419->regmap);
+		dev_err(&i2c->dev, "error initializing regmap: %d\n",
+				ret);
+		return ret;
+	}
+
+	/* Configure registers */
+	regmap_write(tda7419->regmap, TDA7419_VOLUME_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_MIXING_GAIN_REG, 0x0f);
+	regmap_write(tda7419->regmap, TDA7419_ATTENUATOR_LF_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_ATTENUATOR_RF_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_ATTENUATOR_LR_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_ATTENUATOR_RR_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_MIXING_LEVEL_REG, 0xe0);
+	regmap_write(tda7419->regmap, TDA7419_ATTENUATOR_SUB_REG, 0xe0);
+
+	ret = devm_snd_soc_register_component(&i2c->dev,
+		&tda7419_component_driver, NULL, 0);
+	if (ret < 0) {
+		dev_err(&i2c->dev, "error registering component: %d\n",
+				ret);
+	}
+
+	return ret;
+}
+
+static int tda7419_remove(struct i2c_client *i2c)
+{
+	int i;
+	struct tda7419_data *tda7419 = i2c_get_clientdata(i2c);
+
+	/* Reset registers to defaults */
+	for (i = 0; i < ARRAY_SIZE(tda7419_regmap_defaults); i++)
+		regmap_write(tda7419->regmap,
+			     tda7419_regmap_defaults[i].reg,
+			     tda7419_regmap_defaults[i].def);
+
+	return 0;
+}
+
+static const struct i2c_device_id tda7419_i2c_id[] = {
+	{ "tda7419", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tda7419_i2c_id);
+
+static const struct of_device_id tda7419_of_match[] = {
+	{ .compatible = "st,tda7419" },
+	{ },
+};
+
+static struct i2c_driver tda7419_driver = {
+	.driver = {
+		.name   = "tda7419",
+		.of_match_table = tda7419_of_match,
+	},
+	.probe          = tda7419_probe,
+	.remove		= tda7419_remove,
+	.id_table       = tda7419_i2c_id,
+};
+
+module_i2c_driver(tda7419_driver);
+
+MODULE_AUTHOR("Matt Porter <mporter@konsulko.com>");
+MODULE_DESCRIPTION("TDA7419 audio processor driver");
+MODULE_LICENSE("GPL");
-- 
2.11.0