Component driver for the tda7419 audio processor.

Signed-off-by: Matt Porter <mpor...@konsulko.com>
---
 sound/soc/codecs/Kconfig   |   6 +
 sound/soc/codecs/Makefile  |   2 +
 sound/soc/codecs/tda7419.c | 654 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 662 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..225c210ac38f
--- /dev/null
+++ b/sound/soc/codecs/tda7419.c
@@ -0,0 +1,654 @@
+/*
+ * TDA7419 audio processor driver
+ *
+ * Copyright 2018 Konsulko Group
+ *
+ * Author: Matt Porter <mpor...@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_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,
+       .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 min, 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;
+       }
+
+       if (val < min)
+               val = min;
+
+       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 min = tvc->min;
+       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, min, 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, min, 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 const struct snd_kcontrol_new soc_mux_main_src_sel =
+       SOC_DAPM_ENUM("Main Source Select", soc_enum_main_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 struct snd_kcontrol_new soc_mux_second_src_sel =
+       SOC_DAPM_ENUM("Second Source Select", soc_enum_second_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 struct snd_kcontrol_new soc_mux_rear_spkr_src =
+       SOC_DAPM_ENUM("Rear Speaker Source", soc_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 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_SINGLE_TLV("Main Source Capture Volume", TDA7419_MAIN_SRC_REG,
+              TDA7419_MAIN_SRC_GAIN, 15, 0, tlv_src_gain),
+SOC_SINGLE("Main Source AutoZero Switch", 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 Switch", TDA7419_LOUDNESS_REG,
+          TDA7419_LOUDNESS_BOOST, 1, 1),
+SOC_SINGLE("Loudness Soft Step Switch", TDA7419_LOUDNESS_REG,
+          TDA7419_LOUDNESS_SOFT_STEP, 1, 1),
+SOC_SINGLE("Soft Mute Switch", 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 Switch", 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 Switch", 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 Switch", 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 Switch", TDA7419_BASS_REG,
+          TDA7419_BASS_SOFT_STEP, 1, 1),
+SOC_SINGLE_TLV("Second Source Capture Volume", TDA7419_SECOND_SRC_REG,
+              TDA7419_SECOND_SRC_GAIN, 15, 0, tlv_src_gain),
+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 Switch", TDA7419_SUB_MID_BASS_REG,
+          TDA7419_BASS_DC_MODE, 1, 1),
+SOC_SINGLE("Smoothing Filter Switch", TDA7419_SUB_MID_BASS_REG,
+          TDA7419_SMOOTHING_FILTER, 1, 1),
+TDA7419_DOUBLE_R_TLV("Front Speaker Playback Volume", 
TDA7419_ATTENUATOR_LF_REG,
+                    TDA7419_ATTENUATOR_RF_REG, 0x7f, -80, 15, 0x10, 0,
+                    tlv_volume),
+SOC_SINGLE("Left Front Soft Step Switch", TDA7419_ATTENUATOR_LF_REG,
+          TDA7419_VOLUME_SOFT_STEP, 1, 1),
+SOC_SINGLE("Right Front Soft Step Switch", TDA7419_ATTENUATOR_RF_REG,
+          TDA7419_VOLUME_SOFT_STEP, 1, 1),
+TDA7419_DOUBLE_R_TLV("Rear Speaker Playback Volume", TDA7419_ATTENUATOR_LR_REG,
+                    TDA7419_ATTENUATOR_RR_REG, 0x7f, -80, 15, 0x10, 0,
+                    tlv_volume),
+SOC_SINGLE("Left Rear Soft Step Switch", TDA7419_ATTENUATOR_LR_REG,
+          TDA7419_VOLUME_SOFT_STEP, 1, 1),
+SOC_SINGLE("Right Rear Soft Step Switch", 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 Switch", 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 Switch", 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 Switch", TDA7419_SA_CLK_AC_REG,
+          TDA7419_SA_RUN, 1, 1),
+SOC_SINGLE("Spectrum Analyzer Reset Switch", 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_kcontrol_new soc_mixer_lf_output_controls[] = {
+       SOC_DAPM_SINGLE("Mix to LF Speaker Switch",
+                       TDA7419_MIXING_GAIN_REG,
+                       TDA7419_MIX_LF, 1, 1),
+};
+
+static const struct snd_kcontrol_new soc_mixer_rf_output_controls[] = {
+       SOC_DAPM_SINGLE("Mix to RF Speaker Switch",
+                       TDA7419_MIXING_GAIN_REG,
+                       TDA7419_MIX_RF, 1, 1),
+};
+
+static const struct snd_kcontrol_new soc_mix_enable_switch_controls[] = {
+       SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
+                       TDA7419_MIX_ENABLE, 1, 1),
+};
+
+static const struct snd_kcontrol_new soc_sub_enable_switch_controls[] = {
+       SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
+                       TDA7419_MIX_ENABLE, 1, 1),
+};
+
+static const struct snd_soc_dapm_widget tda7419_dapm_widgets[] = {
+       SND_SOC_DAPM_INPUT("SE3L"),
+       SND_SOC_DAPM_INPUT("SE3R"),
+       SND_SOC_DAPM_INPUT("SE2L"),
+       SND_SOC_DAPM_INPUT("SE2R"),
+       SND_SOC_DAPM_INPUT("SE1L"),
+       SND_SOC_DAPM_INPUT("SE1R"),
+       SND_SOC_DAPM_INPUT("DIFFL"),
+       SND_SOC_DAPM_INPUT("DIFFR"),
+       SND_SOC_DAPM_INPUT("MIX"),
+
+       SND_SOC_DAPM_MUX("Main Source Select", SND_SOC_NOPM,
+                        0, 0, &soc_mux_main_src_sel),
+       SND_SOC_DAPM_MUX("Second Source Select", SND_SOC_NOPM,
+                        0, 0, &soc_mux_second_src_sel),
+       SND_SOC_DAPM_MUX("Rear Speaker Source", SND_SOC_NOPM,
+                        0, 0, &soc_mux_rear_spkr_src),
+
+       SND_SOC_DAPM_SWITCH("Mix Enable", SND_SOC_NOPM,
+                       0, 0, &soc_mix_enable_switch_controls[0]),
+       SND_SOC_DAPM_MIXER_NAMED_CTL("LF Output Mixer", SND_SOC_NOPM,
+                       0, 0, &soc_mixer_lf_output_controls[0],
+                       ARRAY_SIZE(soc_mixer_lf_output_controls)),
+       SND_SOC_DAPM_MIXER_NAMED_CTL("RF Output Mixer", SND_SOC_NOPM,
+                       0, 0, &soc_mixer_rf_output_controls[0],
+                       ARRAY_SIZE(soc_mixer_rf_output_controls)),
+
+       SND_SOC_DAPM_SWITCH("Subwoofer Enable",
+                       SND_SOC_NOPM, 0, 0,
+                       &soc_sub_enable_switch_controls[0]),
+
+       SND_SOC_DAPM_OUTPUT("OUTLF"),
+       SND_SOC_DAPM_OUTPUT("OUTRF"),
+       SND_SOC_DAPM_OUTPUT("OUTLR"),
+       SND_SOC_DAPM_OUTPUT("OUTRR"),
+       SND_SOC_DAPM_OUTPUT("OUTSW"),
+};
+
+static const struct snd_soc_dapm_route tda7419_dapm_routes[] = {
+       {"Main Source Select", "SE3", "SE3L"},
+       {"Main Source Select", "SE3", "SE3R"},
+       {"Main Source Select", "SE2", "SE2L"},
+       {"Main Source Select", "SE2", "SE2R"},
+       {"Main Source Select", "SE1", "SE1L"},
+       {"Main Source Select", "SE1", "SE1R"},
+       {"Main Source Select", "SE", "DIFFL"},
+       {"Main Source Select", "SE", "DIFFR"},
+       {"Main Source Select", "QD", "DIFFL"},
+       {"Main Source Select", "QD", "DIFFR"},
+
+       {"Second Source Select", "SE3", "SE3L"},
+       {"Second Source Select", "SE3", "SE3R"},
+       {"Second Source Select", "SE2", "SE2L"},
+       {"Second Source Select", "SE2", "SE2R"},
+       {"Second Source Select", "SE1", "SE1L"},
+       {"Second Source Select", "SE1", "SE1R"},
+       {"Second Source Select", "SE", "DIFFL"},
+       {"Second Source Select", "SE", "DIFFR"},
+       {"Second Source Select", "QD", "DIFFL"},
+       {"Second Source Select", "QD", "DIFFR"},
+
+       {"Rear Speaker Source", "Main", "Main Source Select"},
+       {"Rear Speaker Source", "Second", "Second Source Select"},
+
+       {"Subwoofer Enable", "Switch", "Main Source Select"},
+
+       {"Mix Enable", "Switch", "MIX"},
+
+       {"LF Output Mixer", NULL, "Main Source Select"},
+       {"LF Output Mixer", "Mix to LF Speaker Switch", "Mix Enable"},
+       {"RF Output Mixer", NULL, "Main Source Select"},
+       {"RF Output Mixer", "Mix to RF Speaker Switch", "Mix Enable"},
+
+       {"OUTLF", NULL, "LF Output Mixer"},
+       {"OUTRF", NULL, "RF Output Mixer"},
+       {"OUTLR", NULL, "Rear Speaker Source"},
+       {"OUTRR", NULL, "Rear Speaker Source"},
+       {"OUTSW", NULL, "Subwoofer Enable"},
+};
+
+static const struct snd_soc_component_driver tda7419_component_driver = {
+       .name                   = "tda7419",
+       .controls               = tda7419_controls,
+       .num_controls           = ARRAY_SIZE(tda7419_controls),
+       .dapm_widgets           = tda7419_dapm_widgets,
+       .num_dapm_widgets       = ARRAY_SIZE(tda7419_dapm_widgets),
+       .dapm_routes            = tda7419_dapm_routes,
+       .num_dapm_routes        = ARRAY_SIZE(tda7419_dapm_routes),
+};
+
+static int tda7419_probe(struct i2c_client *i2c,
+                        const struct i2c_device_id *id)
+{
+       struct tda7419_data *tda7419;
+       int i, 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;
+       }
+
+       /*
+        * Reset registers to power-on defaults. The part does not provide a
+        * soft-reset function and the registers are not readable. This ensures
+        * that the cache matches register contents even if the registers have
+        * been previously initialized and not power cycled before probe.
+        */
+       for (i = 0; i < ARRAY_SIZE(tda7419_regmap_defaults); i++)
+               regmap_write(tda7419->regmap,
+                            tda7419_regmap_defaults[i].reg,
+                            tda7419_regmap_defaults[i].def);
+
+       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 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,
+       .id_table       = tda7419_i2c_id,
+};
+
+module_i2c_driver(tda7419_driver);
+
+MODULE_AUTHOR("Matt Porter <mpor...@konsulko.com>");
+MODULE_DESCRIPTION("TDA7419 audio processor driver");
+MODULE_LICENSE("GPL");
-- 
2.11.0

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