ASoC: cs4349: Add support for Cirrus Logic CS4349

Signed-off-by: Tim Howe <tim.howe@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

5 files changed, 574 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/cs4349.txt b/Documentation/devicetree/bindings/sound/cs4349.txt
new file mode 100644
index 000000000000..54c117b59dba
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs4349.txt
@@ -0,0 +1,19 @@
+CS4349 audio CODEC
+
+Required properties:
+
+  - compatible : "cirrus,cs4349"
+
+  - reg : the I2C address of the device for I2C
+
+Optional properties:
+
+  - reset-gpios : a GPIO spec for the reset pin.
+
+Example:
+
+codec: cs4349@48 {
+        compatible = "cirrus,cs4349";
+        reg = <0x48>;
+        reset-gpios = <&gpio 54 0>;
+};
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index efaafce8ba38..6a759d13ef22 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -53,6 +53,7 @@ config SND_SOC_ALL_CODECS
         select SND_SOC_CS4271_I2C if I2C
         select SND_SOC_CS4271_SPI if SPI_MASTER
         select SND_SOC_CS42XX8_I2C if I2C
+        select SND_SOC_CS4349 if I2C
         select SND_SOC_CX20442 if TTY
         select SND_SOC_DA7210 if SND_SOC_I2C_AND_SPI
         select SND_SOC_DA7213 if I2C
@@ -403,6 +404,11 @@ config SND_SOC_CS42XX8_I2C
         select SND_SOC_CS42XX8
         select REGMAP_I2C
 
+# Cirrus Logic CS4349 HiFi DAC
+config SND_SOC_CS4349
+        tristate "Cirrus Logic CS4349 CODEC"
+        depends on I2C
+
 config SND_SOC_CX20442
         tristate
         depends on TTY
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index cf160d972cb3..f19e8d29f89d 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -45,6 +45,7 @@ snd-soc-cs4271-i2c-objs := cs4271-i2c.o
 snd-soc-cs4271-spi-objs := cs4271-spi.o
 snd-soc-cs42xx8-objs := cs42xx8.o
 snd-soc-cs42xx8-i2c-objs := cs42xx8-i2c.o
+snd-soc-cs4349-objs := cs4349.o
 snd-soc-cx20442-objs := cx20442.o
 snd-soc-da7210-objs := da7210.o
 snd-soc-da7213-objs := da7213.o
@@ -232,6 +233,7 @@ obj-$(CONFIG_SND_SOC_CS4271_I2C)	+= snd-soc-cs4271-i2c.o
 obj-$(CONFIG_SND_SOC_CS4271_SPI)        += snd-soc-cs4271-spi.o
 obj-$(CONFIG_SND_SOC_CS42XX8)   += snd-soc-cs42xx8.o
 obj-$(CONFIG_SND_SOC_CS42XX8_I2C) += snd-soc-cs42xx8-i2c.o
+obj-$(CONFIG_SND_SOC_CS4349)    += snd-soc-cs4349.o
 obj-$(CONFIG_SND_SOC_CX20442)   += snd-soc-cx20442.o
 obj-$(CONFIG_SND_SOC_DA7210)    += snd-soc-da7210.o
 obj-$(CONFIG_SND_SOC_DA7213)    += snd-soc-da7213.o
diff --git a/sound/soc/codecs/cs4349.c b/sound/soc/codecs/cs4349.c
new file mode 100644
index 000000000000..a8df8a749607
--- /dev/null
+++ b/sound/soc/codecs/cs4349.c
@@ -0,0 +1,401 @@
+/*
+ * cs4349.c  --  CS4349 ALSA Soc Audio driver
+ *
+ * Copyright 2015 Cirrus Logic, Inc.
+ *
+ * Authors: Tim Howe <Tim.Howe@cirrus.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.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include "cs4349.h"
+
+
+static const struct reg_default cs4349_reg_defaults[] = {
+        { 2, 0x00 },    /* r02  - Mode Control */
+        { 3, 0x09 },    /* r03  - Volume, Mixing and Inversion Control */
+        { 4, 0x81 },    /* r04  - Mute Control */
+        { 5, 0x00 },    /* r05  - Channel A Volume Control */
+        { 6, 0x00 },    /* r06  - Channel B Volume Control */
+        { 7, 0xB1 },    /* r07  - Ramp and Filter Control */
+        { 8, 0x1C },    /* r08  - Misc. Control */
+};
+
+/* Private data for the CS4349 */
+struct  cs4349_private {
+        struct regmap                   *regmap;
+        struct cs4349_platform_data     pdata;
+        struct gpio_desc                *reset_gpio;
+        unsigned int                    mode;
+        int                             rate;
+};
+
+static bool cs4349_readable_register(struct device *dev, unsigned int reg)
+{
+        switch (reg) {
+        case CS4349_CHIPID:
+        case CS4349_MODE:
+        case CS4349_VMI:
+        case CS4349_MUTE:
+        case CS4349_VOLA:
+        case CS4349_VOLB:
+        case CS4349_RMPFLT:
+        case CS4349_MISC:
+                return true;
+        default:
+                return false;
+        }
+}
+
+static int cs4349_set_dai_fmt(struct snd_soc_dai *codec_dai,
+                              unsigned int format)
+{
+        struct snd_soc_codec *codec = codec_dai->codec;
+        struct cs4349_private *cs4349 = snd_soc_codec_get_drvdata(codec);
+        unsigned int fmt;
+
+        fmt = format & SND_SOC_DAIFMT_FORMAT_MASK;
+
+        switch (fmt) {
+        case SND_SOC_DAIFMT_I2S:
+        case SND_SOC_DAIFMT_LEFT_J:
+        case SND_SOC_DAIFMT_RIGHT_J:
+                cs4349->mode = format & SND_SOC_DAIFMT_FORMAT_MASK;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int cs4349_pcm_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *params,
+                            struct snd_soc_dai *dai)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_codec *codec = rtd->codec;
+        struct cs4349_private *cs4349 = snd_soc_codec_get_drvdata(codec);
+        int mode, fmt, ret;
+
+        mode = snd_soc_read(codec, CS4349_MODE);
+        cs4349->rate = params_rate(params);
+
+        switch (cs4349->mode) {
+        case SND_SOC_DAIFMT_I2S:
+                mode |= MODE_FORMAT(DIF_I2S);
+                break;
+        case SND_SOC_DAIFMT_LEFT_J:
+                mode |= MODE_FORMAT(DIF_LEFT_JST);
+                break;
+        case SND_SOC_DAIFMT_RIGHT_J:
+                switch (params_width(params)) {
+                case 16:
+                        fmt = DIF_RGHT_JST16;
+                        break;
+                case 24:
+                        fmt = DIF_RGHT_JST24;
+                        break;
+                default:
+                        return -EINVAL;
+                }
+                mode |= MODE_FORMAT(fmt);
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        ret = snd_soc_write(codec, CS4349_MODE, mode);
+        if (ret < 0)
+                return ret;
+
+        return 0;
+}
+
+static int cs4349_digital_mute(struct snd_soc_dai *dai, int mute)
+{
+        struct snd_soc_codec *codec = dai->codec;
+        int reg;
+
+        reg = 0;
+        if (mute)
+                reg = MUTE_AB_MASK;
+
+        return snd_soc_update_bits(codec, CS4349_MUTE, MUTE_AB_MASK, reg);
+}
+
+static DECLARE_TLV_DB_SCALE(dig_tlv, -12750, 50, 0);
+
+static const char * const chan_mix_texts[] = {
+        "Mute", "MuteA", "MuteA SwapB", "MuteA MonoB", "SwapA MuteB",
+        "BothR", "Swap", "SwapA MonoB", "MuteB", "Normal", "BothL",
+        "MonoB", "MonoA MuteB", "MonoA", "MonoA SwapB", "Mono",
+        /*Normal == Channel A = Left, Channel B = Right*/
+};
+
+static const char * const fm_texts[] = {
+        "Auto", "Single", "Double", "Quad",
+};
+
+static const char * const deemph_texts[] = {
+        "None", "44.1k", "48k", "32k",
+};
+
+static const char * const softr_zeroc_texts[] = {
+        "Immediate", "Zero Cross", "Soft Ramp", "SR on ZC",
+};
+
+static int deemph_values[] = {
+        0, 4, 8, 12,
+};
+
+static int softr_zeroc_values[] = {
+        0, 64, 128, 192,
+};
+
+static const struct soc_enum chan_mix_enum =
+        SOC_ENUM_SINGLE(CS4349_VMI, 0,
+                        ARRAY_SIZE(chan_mix_texts),
+                        chan_mix_texts);
+
+static const struct soc_enum fm_mode_enum =
+        SOC_ENUM_SINGLE(CS4349_MODE, 0,
+                        ARRAY_SIZE(fm_texts),
+                        fm_texts);
+
+static SOC_VALUE_ENUM_SINGLE_DECL(deemph_enum, CS4349_MODE, 0, DEM_MASK,
+                                deemph_texts, deemph_values);
+
+static SOC_VALUE_ENUM_SINGLE_DECL(softr_zeroc_enum, CS4349_RMPFLT, 0,
+                                SR_ZC_MASK, softr_zeroc_texts,
+                                softr_zeroc_values);
+
+static const struct snd_kcontrol_new cs4349_snd_controls[] = {
+        SOC_DOUBLE_R_TLV("Master Playback Volume",
+                         CS4349_VOLA, CS4349_VOLB, 0, 0xFF, 1, dig_tlv),
+        SOC_ENUM("Functional Mode", fm_mode_enum),
+        SOC_ENUM("De-Emphasis Control", deemph_enum),
+        SOC_ENUM("Soft Ramp Zero Cross Control", softr_zeroc_enum),
+        SOC_ENUM("Channel Mixer", chan_mix_enum),
+        SOC_SINGLE("VolA = VolB Switch", CS4349_VMI, 7, 1, 0),
+        SOC_SINGLE("InvertA Switch", CS4349_VMI, 6, 1, 0),
+        SOC_SINGLE("InvertB Switch", CS4349_VMI, 5, 1, 0),
+        SOC_SINGLE("Auto-Mute Switch", CS4349_MUTE, 7, 1, 0),
+        SOC_SINGLE("MUTEC A = B Switch", CS4349_MUTE, 5, 1, 0),
+        SOC_SINGLE("Soft Ramp Up Switch", CS4349_RMPFLT, 5, 1, 0),
+        SOC_SINGLE("Soft Ramp Down Switch", CS4349_RMPFLT, 4, 1, 0),
+        SOC_SINGLE("Slow Roll Off Filter Switch", CS4349_RMPFLT, 2, 1, 0),
+        SOC_SINGLE("Freeze Switch", CS4349_MISC, 5, 1, 0),
+        SOC_SINGLE("Popguard Switch", CS4349_MISC, 4, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget cs4349_dapm_widgets[] = {
+        SND_SOC_DAPM_DAC("HiFi DAC", NULL, SND_SOC_NOPM, 0, 0),
+
+        SND_SOC_DAPM_OUTPUT("OutputA"),
+        SND_SOC_DAPM_OUTPUT("OutputB"),
+};
+
+static const struct snd_soc_dapm_route cs4349_routes[] = {
+        {"DAC Playback", NULL, "OutputA"},
+        {"DAC Playback", NULL, "OutputB"},
+
+        {"OutputA", NULL, "HiFi DAC"},
+        {"OutputB", NULL, "HiFi DAC"},
+};
+
+#define CS4349_PCM_FORMATS (SNDRV_PCM_FMTBIT_S8  | \
+                        SNDRV_PCM_FMTBIT_S16_LE  | SNDRV_PCM_FMTBIT_S16_BE  | \
+                        SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \
+                        SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
+                        SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | \
+                        SNDRV_PCM_FMTBIT_S24_LE  | SNDRV_PCM_FMTBIT_S24_BE  | \
+                        SNDRV_PCM_FMTBIT_S32_LE)
+
+#define CS4349_PCM_RATES SNDRV_PCM_RATE_8000_192000
+
+static const struct snd_soc_dai_ops cs4349_dai_ops = {
+        .hw_params      = cs4349_pcm_hw_params,
+        .set_fmt        = cs4349_set_dai_fmt,
+        .digital_mute   = cs4349_digital_mute,
+};
+
+static struct snd_soc_dai_driver cs4349_dai = {
+        .name = "cs4349_hifi",
+        .playback = {
+                .stream_name    = "DAC Playback",
+                .channels_min   = 1,
+                .channels_max   = 2,
+                .rates          = CS4349_PCM_RATES,
+                .formats        = CS4349_PCM_FORMATS,
+        },
+        .ops = &cs4349_dai_ops,
+        .symmetric_rates = 1,
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_cs4349 = {
+        .controls               = cs4349_snd_controls,
+        .num_controls           = ARRAY_SIZE(cs4349_snd_controls),
+
+        .dapm_widgets           = cs4349_dapm_widgets,
+        .num_dapm_widgets       = ARRAY_SIZE(cs4349_dapm_widgets),
+        .dapm_routes            = cs4349_routes,
+        .num_dapm_routes        = ARRAY_SIZE(cs4349_routes),
+};
+
+static struct regmap_config cs4349_regmap = {
+        .reg_bits               = 8,
+        .val_bits               = 8,
+
+        .max_register           = CS4349_NUMREGS,
+        .reg_defaults           = cs4349_reg_defaults,
+        .num_reg_defaults       = ARRAY_SIZE(cs4349_reg_defaults),
+        .readable_reg           = cs4349_readable_register,
+        .cache_type             = REGCACHE_RBTREE,
+};
+
+static int cs4349_i2c_probe(struct i2c_client *client,
+                                      const struct i2c_device_id *id)
+{
+        struct cs4349_private *cs4349;
+        struct cs4349_platform_data *pdata = dev_get_platdata(&client->dev);
+        int ret = 0;
+
+        cs4349 = devm_kzalloc(&client->dev, sizeof(*cs4349), GFP_KERNEL);
+        if (!cs4349)
+                return -ENOMEM;
+
+        cs4349->regmap = devm_regmap_init_i2c(client, &cs4349_regmap);
+        if (IS_ERR(cs4349->regmap)) {
+                ret = PTR_ERR(cs4349->regmap);
+                dev_err(&client->dev, "regmap_init() failed: %d\n", ret);
+                return ret;
+        }
+
+        if (pdata)
+                cs4349->pdata = *pdata;
+
+        /* Reset the Device */
+        cs4349->reset_gpio = devm_gpiod_get_optional(&client->dev,
+                "reset", GPIOD_OUT_LOW);
+        if (IS_ERR(cs4349->reset_gpio))
+                return PTR_ERR(cs4349->reset_gpio);
+
+        if (cs4349->reset_gpio)
+                gpiod_set_value_cansleep(cs4349->reset_gpio, 1);
+
+        i2c_set_clientdata(client, cs4349);
+
+        return snd_soc_register_codec(&client->dev, &soc_codec_dev_cs4349,
+                &cs4349_dai, 1);
+}
+
+static int cs4349_i2c_remove(struct i2c_client *client)
+{
+        struct cs4349_private *cs4349 = i2c_get_clientdata(client);
+
+        snd_soc_unregister_codec(&client->dev);
+
+        /* Hold down reset */
+        if (cs4349->reset_gpio)
+                gpiod_set_value_cansleep(cs4349->reset_gpio, 0);
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int cs4349_runtime_suspend(struct device *dev)
+{
+        struct cs4349_private *cs4349 = dev_get_drvdata(dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
+        int ret;
+
+        ret = snd_soc_update_bits(rtd->codec, CS4349_MISC, PWR_DWN, 1);
+        if (ret < 0)
+                return ret;
+
+        regcache_cache_only(cs4349->regmap, true);
+
+        /* Hold down reset */
+        if (cs4349->reset_gpio)
+                gpiod_set_value_cansleep(cs4349->reset_gpio, 0);
+
+        return 0;
+}
+
+static int cs4349_runtime_resume(struct device *dev)
+{
+        struct cs4349_private *cs4349 = dev_get_drvdata(dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
+        int ret;
+
+        ret = snd_soc_update_bits(rtd->codec, CS4349_MISC, PWR_DWN, 0);
+        if (ret < 0)
+                return ret;
+
+        if (cs4349->reset_gpio)
+                gpiod_set_value_cansleep(cs4349->reset_gpio, 1);
+
+        regcache_cache_only(cs4349->regmap, false);
+        regcache_sync(cs4349->regmap);
+
+        return 0;
+}
+#endif
+
+static const struct dev_pm_ops cs4349_runtime_pm = {
+        SET_RUNTIME_PM_OPS(cs4349_runtime_suspend, cs4349_runtime_resume,
+                           NULL)
+};
+
+static const struct of_device_id cs4349_of_match[] = {
+        { .compatible = "cirrus,cs4349", },
+        {},
+};
+
+MODULE_DEVICE_TABLE(of, cs4349_of_match);
+
+static const struct i2c_device_id cs4349_i2c_id[] = {
+        {"cs4349", 0},
+        {}
+};
+
+MODULE_DEVICE_TABLE(i2c, cs4349_i2c_id);
+
+static struct i2c_driver cs4349_i2c_driver = {
+        .driver = {
+                .name           = "cs4349",
+                .owner          = THIS_MODULE,
+                .of_match_table = cs4349_of_match,
+        },
+        .id_table       = cs4349_i2c_id,
+        .probe          = cs4349_i2c_probe,
+        .remove         = cs4349_i2c_remove,
+};
+
+module_i2c_driver(cs4349_i2c_driver);
+
+MODULE_AUTHOR("Tim Howe <tim.howe@cirrus.com>");
+MODULE_DESCRIPTION("Cirrus Logic CS4349 ALSA SoC Codec Driver");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/cs4349.h b/sound/soc/codecs/cs4349.h
new file mode 100644
index 000000000000..3884a8907d23
--- /dev/null
+++ b/sound/soc/codecs/cs4349.h
@@ -0,0 +1,146 @@
+/*
+ * ALSA SoC CS4349 codec driver
+ *
+ * Copyright 2015 Cirrus Logic, Inc.
+ *
+ * Author: Tim Howe <Tim.Howe@cirrus.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.
+ *
+ */
+
+#ifndef __CS4349_H__
+#define __CS4349_H__
+
+struct cs4349_platform_data {
+
+        /* GPIO for Reset */
+        unsigned int gpio_nreset;
+
+};
+
+/* CS4349 registers addresses */
+#define CS4349_CHIPID           0x01    /* Device and Rev ID, Read Only */
+#define CS4349_MODE             0x02    /* Mode Control */
+#define CS4349_VMI              0x03    /* Volume, Mixing, Inversion Control */
+#define CS4349_MUTE             0x04    /* Mute Control */
+#define CS4349_VOLA             0x05    /* DAC Channel A Volume Control */
+#define CS4349_VOLB             0x06    /* DAC Channel B Volume Control */
+#define CS4349_RMPFLT           0x07    /* Ramp and Filter Control */
+#define CS4349_MISC             0x08    /* Power Down,Freeze Control,Pop Stop*/
+
+#define CS4349_FIRSTREG         0x01
+#define CS4349_LASTREG          0x08
+#define CS4349_NUMREGS          (CS4349_LASTREG - CS4349_FIRSTREG + 1)
+#define CS4349_I2C_INCR         0x80
+
+
+/* Device and Revision ID */
+#define CS4349_REVA             0xF0    /* Rev A */
+#define CS4349_REVB             0xF1    /* Rev B */
+#define CS4349_REVC2            0xFF    /* Rev C2 */
+
+
+/* PDN_DONE Poll Maximum
+ * If soft ramp is set it will take much longer to power down
+ * the system.
+ */
+#define PDN_POLL_MAX            900
+
+
+/* Bitfield Definitions */
+
+/* CS4349_MODE */
+/* (Digital Interface Format, De-Emphasis Control, Functional Mode */
+#define DIF2                    (1 << 6)
+#define DIF1                    (1 << 5)
+#define DIF0                    (1 << 4)
+#define DEM1                    (1 << 3)
+#define DEM0                    (1 << 2)
+#define FM1                     (1 << 1)
+#define DIF_LEFT_JST            0x00
+#define DIF_I2S                 0x01
+#define DIF_RGHT_JST16          0x02
+#define DIF_RGHT_JST24          0x03
+#define DIF_TDM0                0x04
+#define DIF_TDM1                0x05
+#define DIF_TDM2                0x06
+#define DIF_TDM3                0x07
+#define DIF_MASK                0x70
+#define MODE_FORMAT(x)          (((x)&7)<<4)
+#define DEM_MASK                0x0C
+#define NO_DEM                  0x00
+#define DEM_441                 0x04
+#define DEM_48K                 0x08
+#define DEM_32K                 0x0C
+#define FM_AUTO                 0x00
+#define FM_SNGL                 0x01
+#define FM_DBL                  0x02
+#define FM_QUAD                 0x03
+#define FM_SNGL_MIN             30000
+#define FM_SNGL_MAX             54000
+#define FM_DBL_MAX              108000
+#define FM_QUAD_MAX             216000
+#define FM_MASK                 0x03
+
+/* CS4349_VMI (VMI = Volume, Mixing and Inversion Controls) */
+#define VOLBISA                 (1 << 7)
+#define VOLAISB                 (1 << 7)
+/* INVERT_A only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */
+#define INVERT_A                (1 << 6)
+/* INVERT_B only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */
+#define INVERT_B                (1 << 5)
+#define ATAPI3                  (1 << 3)
+#define ATAPI2                  (1 << 2)
+#define ATAPI1                  (1 << 1)
+#define ATAPI0                  (1 << 0)
+#define MUTEAB                  0x00
+#define MUTEA_RIGHTB            0x01
+#define MUTEA_LEFTB             0x02
+#define MUTEA_SUMLRDIV2B        0x03
+#define RIGHTA_MUTEB            0x04
+#define RIGHTA_RIGHTB           0x05
+#define RIGHTA_LEFTB            0x06
+#define RIGHTA_SUMLRDIV2B       0x07
+#define LEFTA_MUTEB             0x08
+#define LEFTA_RIGHTB            0x09    /* Default */
+#define LEFTA_LEFTB             0x0A
+#define LEFTA_SUMLRDIV2B        0x0B
+#define SUMLRDIV2A_MUTEB        0x0C
+#define SUMLRDIV2A_RIGHTB       0x0D
+#define SUMLRDIV2A_LEFTB        0x0E
+#define SUMLRDIV2_AB            0x0F
+#define CHMIX_MASK              0x0F
+
+/* CS4349_MUTE */
+#define AUTOMUTE                (1 << 7)
+#define MUTEC_AB                (1 << 5)
+#define MUTE_A                  (1 << 4)
+#define MUTE_B                  (1 << 3)
+#define MUTE_AB_MASK            0x18
+
+/* CS4349_RMPFLT (Ramp and Filter Control) */
+#define SCZ1                    (1 << 7)
+#define SCZ0                    (1 << 6)
+#define RMP_UP                  (1 << 5)
+#define RMP_DN                  (1 << 4)
+#define FILT_SEL                (1 << 2)
+#define IMMDT_CHNG              0x31
+#define ZEROCRSS                0x71
+#define SOFT_RMP                0xB1
+#define SFTRMP_ZEROCRSS         0xF1
+#define SR_ZC_MASK              0xC0
+
+/* CS4349_MISC */
+#define PWR_DWN                 (1 << 7)
+#define FREEZE                  (1 << 5)
+#define POPG_EN                 (1 << 4)
+
+#endif  /* __CS4349_H__ */