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Message-ID: <1393224929-7555-1-git-send-email-Guangyu.Chen@freescale.com>
Date: Mon, 24 Feb 2014 14:55:29 +0800
From: Nicolin Chen <Guangyu.Chen@...escale.com>
To: <broonie@...nel.org>, <brian.austin@...rus.com>,
<Paul.Handrigan@...rus.com>
CC: <robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
<rob@...dley.net>, <lgirdwood@...il.com>,
<grant.likely@...aro.org>, <devicetree@...r.kernel.org>,
<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<alsa-devel@...a-project.org>
Subject: [PATCH] ASoC: cs42888: Add codec driver support
This patch adds support for the Cirrus Logic CS42888 Audio CODEC that
has four 24-bit A/D and eight 24-bit D/A converters.
[ CS42888 supports both I2C and SPI control ports. As initial patch,
this patch only adds the support for I2C. ]
Signed-off-by: Nicolin Chen <Guangyu.Chen@...escale.com>
---
.../devicetree/bindings/sound/cs42888.txt | 27 +
sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/cs42888.c | 552 +++++++++++++++++++++
sound/soc/codecs/cs42888.h | 209 ++++++++
5 files changed, 795 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cs42888.txt
create mode 100644 sound/soc/codecs/cs42888.c
create mode 100644 sound/soc/codecs/cs42888.h
diff --git a/Documentation/devicetree/bindings/sound/cs42888.txt b/Documentation/devicetree/bindings/sound/cs42888.txt
new file mode 100644
index 0000000..7736527
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs42888.txt
@@ -0,0 +1,27 @@
+CS42888 audio CODEC
+
+Required properties:
+
+ - compatible : "cirrus,cs42888"
+
+ - reg : the I2C address of the device for I2C
+
+ - clocks : phandle to the clock source for MCLK
+
+ - clock-names : must contain "mclk".
+
+ - VA-supply, VD-supply, VLS-supply, VLC-supply: power supplies for the device,
+ as covered in Documentation/devicetree/bindings/regulator/regulator.txt
+
+Example:
+
+codec: cs42888@48 {
+ compatible = "cirrus,cs42888";
+ reg = <0x48>;
+ clocks = <&codec_mclk 0>;
+ clock-names = "mclk";
+ VA-supply = <®_audio>;
+ VD-supply = <®_audio>;
+ VLS-supply = <®_audio>;
+ VLC-supply = <®_audio>;
+};
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index f2383eb..3211488 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -44,6 +44,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_CS42L73 if I2C
select SND_SOC_CS4270 if I2C
select SND_SOC_CS4271 if SND_SOC_I2C_AND_SPI
+ select SND_SOC_CS42888 if I2C
select SND_SOC_CX20442 if TTY
select SND_SOC_DA7210 if I2C
select SND_SOC_DA7213 if I2C
@@ -300,6 +301,10 @@ config SND_SOC_CS4271
tristate "Cirrus Logic CS4271 CODEC"
depends on SND_SOC_I2C_AND_SPI
+config SND_SOC_CS42888
+ tristate "Cirrus Logic CS42888 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 6af7a55..75fe757 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -30,6 +30,7 @@ snd-soc-cs42l52-objs := cs42l52.o
snd-soc-cs42l73-objs := cs42l73.o
snd-soc-cs4270-objs := cs4270.o
snd-soc-cs4271-objs := cs4271.o
+snd-soc-cs42888-objs := cs42888.o
snd-soc-cx20442-objs := cx20442.o
snd-soc-da7210-objs := da7210.o
snd-soc-da7213-objs := da7213.o
@@ -173,6 +174,7 @@ obj-$(CONFIG_SND_SOC_CS42L52) += snd-soc-cs42l52.o
obj-$(CONFIG_SND_SOC_CS42L73) += snd-soc-cs42l73.o
obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
obj-$(CONFIG_SND_SOC_CS4271) += snd-soc-cs4271.o
+obj-$(CONFIG_SND_SOC_CS42888) += snd-soc-cs42888.o
obj-$(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/cs42888.c b/sound/soc/codecs/cs42888.c
new file mode 100644
index 0000000..8561a25
--- /dev/null
+++ b/sound/soc/codecs/cs42888.c
@@ -0,0 +1,552 @@
+/*
+ * Cirrus Logic CS42888 Audio CODEC Digital Audio Interface (DAI) driver
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <Guangyu.Chen@...escale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "cs42888.h"
+
+#define CS42888_NUM_SUPPLIES 4
+static const char *cs42888_supply_names[CS42888_NUM_SUPPLIES] = {
+ "VA",
+ "VD",
+ "VLS",
+ "VLC",
+};
+
+#define CS42888_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+/* codec private data */
+struct cs42888_priv {
+ struct regulator_bulk_data supplies[CS42888_NUM_SUPPLIES];
+ struct regmap *regmap;
+ struct clk *clk;
+
+ bool slave_mode;
+ unsigned long sysclk;
+};
+
+/* -127.5dB to 0dB with step of 0.5dB */
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
+/* -64dB to 24dB with step of 0.5dB */
+static const DECLARE_TLV_DB_SCALE(adc_tlv, -6400, 50, 0);
+
+static const char *cs42888_adc_single[] = { "Differential", "Single-Ended" };
+static const char *cs42888_szc[] = { "Immediate Change", "Zero Cross",
+ "Soft Ramp", "Soft Ramp on Zero Cross" };
+
+static const struct soc_enum cs42888_enum[] = {
+ SOC_ENUM_SINGLE(CS42888_ADCCTL, 4, 2, cs42888_adc_single),
+ SOC_ENUM_SINGLE(CS42888_ADCCTL, 3, 2, cs42888_adc_single),
+ SOC_ENUM_SINGLE(CS42888_TXCTL, 5, 4, cs42888_szc),
+ SOC_ENUM_SINGLE(CS42888_TXCTL, 0, 4, cs42888_szc),
+};
+
+static const struct snd_kcontrol_new cs42888_snd_controls[] = {
+ SOC_DOUBLE_R_TLV("DAC1 Playback Volume", CS42888_VOLAOUT1,
+ CS42888_VOLAOUT2, 0, 0xff, 1, dac_tlv),
+ SOC_DOUBLE_R_TLV("DAC2 Playback Volume", CS42888_VOLAOUT3,
+ CS42888_VOLAOUT4, 0, 0xff, 1, dac_tlv),
+ SOC_DOUBLE_R_TLV("DAC3 Playback Volume", CS42888_VOLAOUT5,
+ CS42888_VOLAOUT6, 0, 0xff, 1, dac_tlv),
+ SOC_DOUBLE_R_TLV("DAC4 Playback Volume", CS42888_VOLAOUT7,
+ CS42888_VOLAOUT8, 0, 0xff, 1, dac_tlv),
+ SOC_DOUBLE_R_S_TLV("ADC1 Capture Volume", CS42888_VOLAIN1,
+ CS42888_VOLAIN2, 0, -0x80, 0x30, 7, 0, adc_tlv),
+ SOC_DOUBLE_R_S_TLV("ADC2 Capture Volume", CS42888_VOLAIN3,
+ CS42888_VOLAIN4, 0, -0x80, 0x30, 7, 0, adc_tlv),
+ SOC_DOUBLE("DAC1 Invert Switch", CS42888_DACINV, 0, 1, 1, 0),
+ SOC_DOUBLE("DAC2 Invert Switch", CS42888_DACINV, 2, 3, 1, 0),
+ SOC_DOUBLE("DAC3 Invert Switch", CS42888_DACINV, 4, 5, 1, 0),
+ SOC_DOUBLE("DAC4 Invert Switch", CS42888_DACINV, 6, 7, 1, 0),
+ SOC_DOUBLE("ADC1 Invert Switch", CS42888_ADCINV, 0, 1, 1, 0),
+ SOC_DOUBLE("ADC2 Invert Switch", CS42888_ADCINV, 2, 3, 1, 0),
+ SOC_SINGLE("ADC High-Pass Filter Switch", CS42888_ADCCTL, 7, 1, 1),
+ SOC_SINGLE("DAC De-emphasis Switch", CS42888_ADCCTL, 5, 1, 0),
+ SOC_ENUM("ADC1 Single Ended Mode Switch", cs42888_enum[0]),
+ SOC_ENUM("ADC2 Single Ended Mode Switch", cs42888_enum[1]),
+ SOC_SINGLE("DAC Single Volume Control Switch", CS42888_TXCTL, 7, 1, 0),
+ SOC_ENUM("DAC Soft Ramp & Zero Cross Control Switch", cs42888_enum[2]),
+ SOC_SINGLE("DAC Auto Mute Switch", CS42888_TXCTL, 4, 1, 0),
+ SOC_SINGLE("Mute ADC Serial Port Switch", CS42888_TXCTL, 3, 1, 0),
+ SOC_SINGLE("ADC Single Volume Control Switch", CS42888_TXCTL, 2, 1, 0),
+ SOC_ENUM("ADC Soft Ramp & Zero Cross Control Switch", cs42888_enum[3]),
+};
+
+static const struct snd_soc_dapm_widget cs42888_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("DAC1", "Playback", CS42888_PWRCTL, 1, 1),
+ SND_SOC_DAPM_DAC("DAC2", "Playback", CS42888_PWRCTL, 2, 1),
+ SND_SOC_DAPM_DAC("DAC3", "Playback", CS42888_PWRCTL, 3, 1),
+ SND_SOC_DAPM_DAC("DAC4", "Playback", CS42888_PWRCTL, 4, 1),
+
+ SND_SOC_DAPM_OUTPUT("AOUT1L"),
+ SND_SOC_DAPM_OUTPUT("AOUT1R"),
+ SND_SOC_DAPM_OUTPUT("AOUT2L"),
+ SND_SOC_DAPM_OUTPUT("AOUT2R"),
+ SND_SOC_DAPM_OUTPUT("AOUT3L"),
+ SND_SOC_DAPM_OUTPUT("AOUT3R"),
+ SND_SOC_DAPM_OUTPUT("AOUT4L"),
+ SND_SOC_DAPM_OUTPUT("AOUT4R"),
+
+ SND_SOC_DAPM_ADC("ADC1", "Capture", CS42888_PWRCTL, 5, 1),
+ SND_SOC_DAPM_ADC("ADC2", "Capture", CS42888_PWRCTL, 6, 1),
+
+ SND_SOC_DAPM_INPUT("AIN1L"),
+ SND_SOC_DAPM_INPUT("AIN1R"),
+ SND_SOC_DAPM_INPUT("AIN2L"),
+ SND_SOC_DAPM_INPUT("AIN2R"),
+
+ SND_SOC_DAPM_SUPPLY("PWR", CS42888_PWRCTL, 0, 1, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route cs42888_dapm_routes[] = {
+ /* Playback */
+ { "AOUT1L", NULL, "DAC1" },
+ { "AOUT1R", NULL, "DAC1" },
+ { "DAC1", NULL, "PWR" },
+
+ { "AOUT2L", NULL, "DAC2" },
+ { "AOUT2R", NULL, "DAC2" },
+ { "DAC2", NULL, "PWR" },
+
+ { "AOUT3L", NULL, "DAC3" },
+ { "AOUT3R", NULL, "DAC3" },
+ { "DAC3", NULL, "PWR" },
+
+ { "AOUT4L", NULL, "DAC4" },
+ { "AOUT4R", NULL, "DAC4" },
+ { "DAC4", NULL, "PWR" },
+
+ /* Capture */
+ { "ADC1", NULL, "AIN1L" },
+ { "ADC1", NULL, "AIN1R" },
+ { "ADC1", NULL, "PWR" },
+
+ { "ADC2", NULL, "AIN2L" },
+ { "ADC2", NULL, "AIN2R" },
+ { "ADC2", NULL, "PWR" },
+};
+
+struct cs42888_ratios {
+ unsigned int ratio;
+ unsigned char speed;
+ unsigned char mclk;
+};
+
+static struct cs42888_ratios cs42888_ratios[] = {
+ { 64, CS42888_FM_QUAD, CS42888_FUNCMOD_MFREQ_256(4) },
+ { 96, CS42888_FM_QUAD, CS42888_FUNCMOD_MFREQ_384(4) },
+ { 128, CS42888_FM_QUAD, CS42888_FUNCMOD_MFREQ_512(4) },
+ { 192, CS42888_FM_QUAD, CS42888_FUNCMOD_MFREQ_768(4) },
+ { 256, CS42888_FM_SINGLE, CS42888_FUNCMOD_MFREQ_256(1) },
+ { 384, CS42888_FM_SINGLE, CS42888_FUNCMOD_MFREQ_384(1) },
+ { 512, CS42888_FM_SINGLE, CS42888_FUNCMOD_MFREQ_512(1) },
+ { 768, CS42888_FM_SINGLE, CS42888_FUNCMOD_MFREQ_768(1) },
+ { 1024, CS42888_FM_SINGLE, CS42888_FUNCMOD_MFREQ_1024(1) }
+};
+
+static int cs42888_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 cs42888_priv *cs42888 = snd_soc_codec_get_drvdata(codec);
+
+ cs42888->sysclk = freq;
+
+ return 0;
+}
+
+static int cs42888_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int format)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct cs42888_priv *cs42888 = snd_soc_codec_get_drvdata(codec);
+ u32 val;
+
+ /* Set DAI format */
+ switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_LEFT_J:
+ val = CS42888_INTF_DAC_DIF_LEFTJ | CS42888_INTF_ADC_DIF_LEFTJ;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ val = CS42888_INTF_DAC_DIF_I2S | CS42888_INTF_ADC_DIF_I2S;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ val = CS42888_INTF_DAC_DIF_RIGHTJ | CS42888_INTF_ADC_DIF_RIGHTJ;
+ break;
+ default:
+ dev_err(codec->dev, "unsupported dai format\n");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(cs42888->regmap, CS42888_INTF,
+ CS42888_INTF_DAC_DIF_MASK |
+ CS42888_INTF_ADC_DIF_MASK, val);
+
+ /* Set master/slave audio interface */
+ switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ cs42888->slave_mode = true;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ cs42888->slave_mode = false;
+ break;
+ default:
+ dev_err(codec->dev, "unsupported master/slave mode\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int cs42888_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 cs42888_priv *cs42888 = snd_soc_codec_get_drvdata(codec);
+ bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ u32 ratio = cs42888->sysclk / params_rate(params);
+ u32 i, fm, val, mask;
+
+ for (i = 0; i < ARRAY_SIZE(cs42888_ratios); i++) {
+ if (cs42888_ratios[i].ratio == ratio)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(cs42888_ratios)) {
+ dev_err(codec->dev, "unsupported sysclk ratio\n");
+ return -EINVAL;
+ }
+
+ mask = CS42888_FUNCMOD_MFREQ_MASK;
+ val = cs42888_ratios[i].mclk;
+
+ fm = cs42888->slave_mode ? CS42888_FM_AUTO : cs42888_ratios[i].speed;
+
+ regmap_update_bits(cs42888->regmap, CS42888_FUNCMOD,
+ CS42888_FUNCMOD_xC_FM_MASK(tx) | mask,
+ CS42888_FUNCMOD_xC_FM(tx, fm) | val);
+
+ return 0;
+}
+
+static int cs42888_digital_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct cs42888_priv *cs42888 = snd_soc_codec_get_drvdata(codec);
+
+ regmap_update_bits(cs42888->regmap, CS42888_DACMUTE,
+ CS42888_DACMUTE_ALL, mute ? CS42888_DACMUTE_ALL : 0);
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops cs42888_dai_ops = {
+ .set_fmt = cs42888_set_dai_fmt,
+ .set_sysclk = cs42888_set_dai_sysclk,
+ .hw_params = cs42888_hw_params,
+ .digital_mute = cs42888_digital_mute,
+};
+
+static struct snd_soc_dai_driver cs42888_dai = {
+ .name = "cs42888",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = CS42888_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = CS42888_FORMATS,
+ },
+ .ops = &cs42888_dai_ops,
+};
+
+static struct reg_default cs42888_reg[] = {
+ { 0x01, 0x01 }, /* Chip I.D. and Revision Register */
+ { 0x02, 0x00 }, /* Power Control */
+ { 0x03, 0xF0 }, /* Functional Mode */
+ { 0x04, 0x46 }, /* Interface Formats */
+ { 0x05, 0x00 }, /* ADC Control & DAC De-Emphasis */
+ { 0x06, 0x10 }, /* Transition Control */
+ { 0x07, 0x00 }, /* DAC Channel Mute */
+ { 0x08, 0x00 }, /* Volume Control AOUT1 */
+ { 0x09, 0x00 }, /* Volume Control AOUT2 */
+ { 0x0a, 0x00 }, /* Volume Control AOUT3 */
+ { 0x0b, 0x00 }, /* Volume Control AOUT4 */
+ { 0x0c, 0x00 }, /* Volume Control AOUT5 */
+ { 0x0d, 0x00 }, /* Volume Control AOUT6 */
+ { 0x0e, 0x00 }, /* Volume Control AOUT7 */
+ { 0x0f, 0x00 }, /* Volume Control AOUT8 */
+ { 0x10, 0x00 }, /* DAC Channel Invert */
+ { 0x11, 0x00 }, /* Volume Control AIN1 */
+ { 0x12, 0x00 }, /* Volume Control AIN2 */
+ { 0x13, 0x00 }, /* Volume Control AIN3 */
+ { 0x14, 0x00 }, /* Volume Control AIN4 */
+ { 0x17, 0x00 }, /* ADC Channel Invert */
+ { 0x18, 0x00 }, /* Status Control */
+ { 0x1a, 0x00 }, /* Status Mask */
+ { 0x1b, 0x00 }, /* MUTEC Pin Control */
+};
+
+static bool cs42888_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS42888_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool cs42888_writeable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS42888_CHIPID:
+ case CS42888_STATUS:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static const struct regmap_config cs42888_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = CS42888_LASTREG,
+ .reg_defaults = cs42888_reg,
+ .num_reg_defaults = ARRAY_SIZE(cs42888_reg),
+ .volatile_reg = cs42888_volatile_register,
+ .writeable_reg = cs42888_writeable_register,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int cs42888_probe(struct snd_soc_codec *codec)
+{
+ struct cs42888_priv *cs42888 = snd_soc_codec_get_drvdata(codec);
+
+ /* Disable auto-mute */
+ regmap_update_bits(cs42888->regmap, CS42888_TXCTL,
+ CS42888_TXCTL_AMUTE | CS42888_TXCTL_DAC_SZC_MASK,
+ CS42888_TXCTL_DAC_SZC_SR);
+
+ /* Mute all DAC channels */
+ regmap_write(cs42888->regmap, CS42888_DACMUTE, CS42888_DACMUTE_ALL);
+
+ return 0;
+}
+
+static struct snd_soc_codec_driver cs42888_driver = {
+ .probe = cs42888_probe,
+ .idle_bias_off = true,
+
+ .controls = cs42888_snd_controls,
+ .num_controls = ARRAY_SIZE(cs42888_snd_controls),
+ .dapm_widgets = cs42888_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cs42888_dapm_widgets),
+ .dapm_routes = cs42888_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(cs42888_dapm_routes),
+};
+
+static int cs42888_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct cs42888_priv *cs42888;
+ int ret, val, i;
+
+ cs42888 = devm_kzalloc(&i2c->dev, sizeof(*cs42888), GFP_KERNEL);
+ if (cs42888 == NULL)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, cs42888);
+
+ cs42888->clk = devm_clk_get(&i2c->dev, "mclk");
+ if (IS_ERR(cs42888->clk))
+ dev_warn(&i2c->dev, "failed to get the clock: %ld\n",
+ PTR_ERR(cs42888->clk));
+ else
+ cs42888->sysclk = clk_get_rate(cs42888->clk);
+
+ for (i = 0; i < ARRAY_SIZE(cs42888->supplies); i++)
+ cs42888->supplies[i].supply = cs42888_supply_names[i];
+
+ ret = devm_regulator_bulk_get(&i2c->dev,
+ ARRAY_SIZE(cs42888->supplies), cs42888->supplies);
+ if (ret) {
+ dev_err(&i2c->dev, "failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(cs42888->supplies),
+ cs42888->supplies);
+ if (ret) {
+ dev_err(&i2c->dev, "failed to enable supplies: %d\n", ret);
+ return ret;
+ }
+
+ /* Make sure hardware reset done */
+ msleep(5);
+
+ cs42888->regmap = devm_regmap_init_i2c(i2c, &cs42888_regmap);
+ if (IS_ERR(cs42888->regmap)) {
+ ret = PTR_ERR(cs42888->regmap);
+ dev_err(&i2c->dev, "failed to allocate regmap: %d\n", ret);
+ goto err_enable;
+ }
+
+ /*
+ * We haven't marked the chip revision as volatile due to
+ * sharing a register with the right input volume; explicitly
+ * bypass the cache to read it.
+ */
+ regcache_cache_bypass(cs42888->regmap, true);
+
+ /* Validate the chip ID */
+ regmap_read(cs42888->regmap, CS42888_CHIPID, &val);
+ if (val < 0) {
+ dev_err(&i2c->dev, "failed to get device ID: %x", val);
+ ret = -EINVAL;
+ goto err_enable;
+ }
+
+ /* The top four bits of the chip ID should be 0000 */
+ if ((val & CS42888_CHIPID_CHIP_ID_MASK) != 0x00) {
+ dev_err(&i2c->dev, "unmatched chip ID: %d\n",
+ val & CS42888_CHIPID_CHIP_ID_MASK);
+ ret = -EINVAL;
+ goto err_enable;
+ }
+
+ dev_info(&i2c->dev, "found device at %X, revision %X\n",
+ i2c->addr, val & CS42888_CHIPID_REV_ID_MASK);
+
+ regcache_cache_bypass(cs42888->regmap, false);
+
+ pm_runtime_enable(&i2c->dev);
+ pm_request_idle(&i2c->dev);
+
+ ret = snd_soc_register_codec(&i2c->dev, &cs42888_driver, &cs42888_dai, 1);
+ if (ret) {
+ dev_err(&i2c->dev, "failed to register codec:%d\n", ret);
+ goto err_enable;
+ }
+
+ regcache_cache_only(cs42888->regmap, true);
+
+err_enable:
+ regulator_bulk_disable(ARRAY_SIZE(cs42888->supplies), cs42888->supplies);
+
+ return ret;
+}
+
+static int cs42888_i2c_remove(struct i2c_client *i2c_client)
+{
+ snd_soc_unregister_codec(&i2c_client->dev);
+ return 0;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+static int cs42888_runtime_resume(struct device *dev)
+{
+ struct cs42888_priv *cs42888 = dev_get_drvdata(dev);
+ int ret;
+
+ if (!IS_ERR(cs42888->clk))
+ clk_prepare_enable(cs42888->clk);
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(cs42888->supplies),
+ cs42888->supplies);
+ if (ret) {
+ dev_err(dev, "failed to enable supplies: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * In case the device was put to hard reset during sleep,
+ * we need to wait 500ns here before any I2C communication
+ */
+ mdelay(5);
+
+ regcache_cache_only(cs42888->regmap, false);
+
+ regcache_sync(cs42888->regmap);
+
+ return 0;
+}
+
+static int cs42888_runtime_suspend(struct device *dev)
+{
+ struct cs42888_priv *cs42888 = dev_get_drvdata(dev);
+
+ regcache_cache_only(cs42888->regmap, true);
+
+ regulator_bulk_disable(ARRAY_SIZE(cs42888->supplies),
+ cs42888->supplies);
+
+ if (!IS_ERR(cs42888->clk))
+ clk_disable_unprepare(cs42888->clk);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops cs42888_pm = {
+ SET_RUNTIME_PM_OPS(cs42888_runtime_suspend, cs42888_runtime_resume, NULL)
+};
+
+static struct i2c_device_id cs42888_i2c_id[] = {
+ {"cs42888", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, cs42888_i2c_id);
+
+static const struct of_device_id cs42888_of_match[] = {
+ { .compatible = "cirrus,cs42888", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cs42888_of_match);
+
+static struct i2c_driver cs42888_i2c_driver = {
+ .driver = {
+ .name = "cs42888",
+ .owner = THIS_MODULE,
+ .of_match_table = cs42888_of_match,
+ .pm = &cs42888_pm,
+ },
+ .probe = cs42888_i2c_probe,
+ .remove = cs42888_i2c_remove,
+ .id_table = cs42888_i2c_id,
+};
+
+module_i2c_driver(cs42888_i2c_driver);
+
+MODULE_DESCRIPTION("Cirrus Logic CS42888 ALSA SoC Codec Driver");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/cs42888.h b/sound/soc/codecs/cs42888.h
new file mode 100644
index 0000000..6d2cdec
--- /dev/null
+++ b/sound/soc/codecs/cs42888.h
@@ -0,0 +1,209 @@
+/*
+ * cs42888.h - Cirrus Logic CS42888 Audio CODEC driver header file
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <Guangyu.Chen@...escale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _CS42888_H
+#define _CS42888_H
+
+/* CS42888 register map */
+#define CS42888_CHIPID 0x01 /* Chip ID */
+#define CS42888_PWRCTL 0x02 /* Power Control */
+#define CS42888_FUNCMOD 0x03 /* Functional Mode */
+#define CS42888_INTF 0x04 /* Interface Formats */
+#define CS42888_ADCCTL 0x05 /* ADC Control */
+#define CS42888_TXCTL 0x06 /* Transition Control */
+#define CS42888_DACMUTE 0x07 /* DAC Mute Control */
+#define CS42888_VOLAOUT1 0x08 /* Volume Control AOUT1 */
+#define CS42888_VOLAOUT2 0x09 /* Volume Control AOUT2 */
+#define CS42888_VOLAOUT3 0x0A /* Volume Control AOUT3 */
+#define CS42888_VOLAOUT4 0x0B /* Volume Control AOUT4 */
+#define CS42888_VOLAOUT5 0x0C /* Volume Control AOUT5 */
+#define CS42888_VOLAOUT6 0x0D /* Volume Control AOUT6 */
+#define CS42888_VOLAOUT7 0x0E /* Volume Control AOUT7 */
+#define CS42888_VOLAOUT8 0x0F /* Volume Control AOUT8 */
+#define CS42888_DACINV 0x10 /* DAC Channel Invert */
+#define CS42888_VOLAIN1 0x11 /* Volume Control AIN1 */
+#define CS42888_VOLAIN2 0x12 /* Volume Control AIN2 */
+#define CS42888_VOLAIN3 0x13 /* Volume Control AIN3 */
+#define CS42888_VOLAIN4 0x14 /* Volume Control AIN4 */
+#define CS42888_ADCINV 0x17 /* ADC Channel Invert */
+#define CS42888_STATUSCTL 0x18 /* Status Control */
+#define CS42888_STATUS 0x19 /* Status */
+#define CS42888_STATUSM 0x1A /* Status Mask */
+#define CS42888_MUTEC 0x1B /* MUTEC Pin Control */
+
+#define CS42888_FIRSTREG CS42888_CHIPID
+#define CS42888_LASTREG CS42888_MUTEC
+#define CS42888_NUMREGS (CS42888_LASTREG - CS42888_FIRSTREG + 1)
+#define CS42888_I2C_INCR 0x80
+
+/* Chip I.D. and Revision Register (Address 01h) */
+#define CS42888_CHIPID_CHIP_ID_MASK 0xF0
+#define CS42888_CHIPID_REV_ID_MASK 0x0F
+
+/* Power Control (Address 02h) */
+#define CS42888_PWRCTL_PDN_ADC2_SHIFT 6
+#define CS42888_PWRCTL_PDN_ADC2_MASK (1 << CS42888_PWRCTL_PDN_ADC2_SHIFT)
+#define CS42888_PWRCTL_PDN_ADC2 (1 << CS42888_PWRCTL_PDN_ADC2_SHIFT)
+#define CS42888_PWRCTL_PDN_ADC1_SHIFT 5
+#define CS42888_PWRCTL_PDN_ADC1_MASK (1 << CS42888_PWRCTL_PDN_ADC1_SHIFT)
+#define CS42888_PWRCTL_PDN_ADC1 (1 << CS42888_PWRCTL_PDN_ADC1_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC4_SHIFT 4
+#define CS42888_PWRCTL_PDN_DAC4_MASK (1 << CS42888_PWRCTL_PDN_DAC4_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC4 (1 << CS42888_PWRCTL_PDN_DAC4_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC3_SHIFT 3
+#define CS42888_PWRCTL_PDN_DAC3_MASK (1 << CS42888_PWRCTL_PDN_DAC3_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC3 (1 << CS42888_PWRCTL_PDN_DAC3_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC2_SHIFT 2
+#define CS42888_PWRCTL_PDN_DAC2_MASK (1 << CS42888_PWRCTL_PDN_DAC2_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC2 (1 << CS42888_PWRCTL_PDN_DAC2_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC1_SHIFT 1
+#define CS42888_PWRCTL_PDN_DAC1_MASK (1 << CS42888_PWRCTL_PDN_DAC1_SHIFT)
+#define CS42888_PWRCTL_PDN_DAC1 (1 << CS42888_PWRCTL_PDN_DAC1_SHIFT)
+#define CS42888_PWRCTL_PDN_SHIFT 0
+#define CS42888_PWRCTL_PDN_MASK (1 << CS42888_PWRCTL_PDN_SHIFT)
+#define CS42888_PWRCTL_PDN (1 << CS42888_PWRCTL_PDN_SHIFT)
+
+/* Functional Mode (Address 03h) */
+#define CS42888_FUNCMOD_DAC_FM_SHIFT 6
+#define CS42888_FUNCMOD_DAC_FM_WIDTH 2
+#define CS42888_FUNCMOD_DAC_FM_MASK (((1 << CS42888_FUNCMOD_DAC_FM_WIDTH) - 1) << CS42888_FUNCMOD_DAC_FM_SHIFT)
+#define CS42888_FUNCMOD_DAC_FM(v) ((v) << CS42888_FUNCMOD_DAC_FM_SHIFT)
+#define CS42888_FUNCMOD_ADC_FM_SHIFT 4
+#define CS42888_FUNCMOD_ADC_FM_WIDTH 2
+#define CS42888_FUNCMOD_ADC_FM_MASK (((1 << CS42888_FUNCMOD_ADC_FM_WIDTH) - 1) << CS42888_FUNCMOD_ADC_FM_SHIFT)
+#define CS42888_FUNCMOD_ADC_FM(v) ((v) << CS42888_FUNCMOD_ADC_FM_SHIFT)
+#define CS42888_FUNCMOD_xC_FM_MASK(x) ((x) ? CS42888_FUNCMOD_DAC_FM_MASK : CS42888_FUNCMOD_ADC_FM_MASK)
+#define CS42888_FUNCMOD_xC_FM(x, v) ((x) ? CS42888_FUNCMOD_DAC_FM(v) : CS42888_FUNCMOD_ADC_FM(v))
+#define CS42888_FUNCMOD_MFREQ_SHIFT 1
+#define CS42888_FUNCMOD_MFREQ_WIDTH 3
+#define CS42888_FUNCMOD_MFREQ_MASK (((1 << CS42888_FUNCMOD_MFREQ_WIDTH) - 1) << CS42888_FUNCMOD_MFREQ_SHIFT)
+#define CS42888_FUNCMOD_MFREQ_256(s) ((0 << CS42888_FUNCMOD_MFREQ_SHIFT) >> (s >> 1))
+#define CS42888_FUNCMOD_MFREQ_384(s) ((1 << CS42888_FUNCMOD_MFREQ_SHIFT) >> (s >> 1))
+#define CS42888_FUNCMOD_MFREQ_512(s) ((2 << CS42888_FUNCMOD_MFREQ_SHIFT) >> (s >> 1))
+#define CS42888_FUNCMOD_MFREQ_768(s) ((3 << CS42888_FUNCMOD_MFREQ_SHIFT) >> (s >> 1))
+#define CS42888_FUNCMOD_MFREQ_1024(s) ((4 << CS42888_FUNCMOD_MFREQ_SHIFT) >> (s >> 1))
+
+#define CS42888_FM_SINGLE 0
+#define CS42888_FM_DOUBLE 1
+#define CS42888_FM_QUAD 2
+#define CS42888_FM_AUTO 3
+
+/* Interface Formats (Address 04h) */
+#define CS42888_INTF_FREEZE_SHIFT 7
+#define CS42888_INTF_FREEZE_MASK (1 << CS42888_INTF_FREEZE_SHIFT)
+#define CS42888_INTF_FREEZE (1 << CS42888_INTF_FREEZE_SHIFT)
+#define CS42888_INTF_AUX_DIF_SHIFT 6
+#define CS42888_INTF_AUX_DIF_MASK (1 << CS42888_INTF_AUX_DIF_SHIFT)
+#define CS42888_INTF_AUX_DIF (1 << CS42888_INTF_AUX_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_SHIFT 3
+#define CS42888_INTF_DAC_DIF_WIDTH 3
+#define CS42888_INTF_DAC_DIF_MASK (((1 << CS42888_INTF_DAC_DIF_WIDTH) - 1) << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_LEFTJ (0 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_I2S (1 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_RIGHTJ (2 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_RIGHTJ_16 (3 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_ONELINE_20 (4 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_ONELINE_24 (6 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_DAC_DIF_TDM (7 << CS42888_INTF_DAC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_SHIFT 0
+#define CS42888_INTF_ADC_DIF_WIDTH 3
+#define CS42888_INTF_ADC_DIF_MASK (((1 << CS42888_INTF_ADC_DIF_WIDTH) - 1) << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_LEFTJ (0 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_I2S (1 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_RIGHTJ (2 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_RIGHTJ_16 (3 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_ONELINE_20 (4 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_ONELINE_24 (6 << CS42888_INTF_ADC_DIF_SHIFT)
+#define CS42888_INTF_ADC_DIF_TDM (7 << CS42888_INTF_ADC_DIF_SHIFT)
+
+/* ADC Control & DAC De-Emphasis (Address 05h) */
+#define CS42888_ADCCTL_ADC_HPF_FREEZE_SHIFT 7
+#define CS42888_ADCCTL_ADC_HPF_FREEZE_MASK (1 << CS42888_ADCCTL_ADC_HPF_FREEZE_SHIFT)
+#define CS42888_ADCCTL_ADC_HPF_FREEZE (1 << CS42888_ADCCTL_ADC_HPF_FREEZE_SHIFT)
+#define CS42888_ADCCTL_DAC_DEM_SHIFT 5
+#define CS42888_ADCCTL_DAC_DEM_MASK (1 << CS42888_ADCCTL_DAC_DEM_SHIFT)
+#define CS42888_ADCCTL_DAC_DEM (1 << CS42888_ADCCTL_DAC_DEM_SHIFT)
+#define CS42888_ADCCTL_ADC1_SINGLE_SHIFT 4
+#define CS42888_ADCCTL_ADC1_SINGLE_MASK (1 << CS42888_ADCCTL_ADC1_SINGLE_SHIFT)
+#define CS42888_ADCCTL_ADC1_SINGLE (1 << CS42888_ADCCTL_ADC1_SINGLE_SHIFT)
+#define CS42888_ADCCTL_ADC2_SINGLE_SHIFT 3
+#define CS42888_ADCCTL_ADC2_SINGLE_MASK (1 << CS42888_ADCCTL_ADC2_SINGLE_SHIFT)
+#define CS42888_ADCCTL_ADC2_SINGLE (1 << CS42888_ADCCTL_ADC2_SINGLE_SHIFT)
+
+/* Transition Control (Address 06h) */
+#define CS42888_TXCTL_DAC_SNGVOL_SHIFT 7
+#define CS42888_TXCTL_DAC_SNGVOL_MASK (1 << CS42888_TXCTL_DAC_SNGVOL_SHIFT)
+#define CS42888_TXCTL_DAC_SNGVOL (1 << CS42888_TXCTL_DAC_SNGVOL_SHIFT)
+#define CS42888_TXCTL_DAC_SZC_SHIFT 5
+#define CS42888_TXCTL_DAC_SZC_WIDTH 2
+#define CS42888_TXCTL_DAC_SZC_MASK (((1 << CS42888_TXCTL_DAC_SZC_WIDTH) - 1) << CS42888_TXCTL_DAC_SZC_SHIFT)
+#define CS42888_TXCTL_DAC_SZC_IC (0 << CS42888_TXCTL_DAC_SZC_SHIFT)
+#define CS42888_TXCTL_DAC_SZC_ZC (1 << CS42888_TXCTL_DAC_SZC_SHIFT)
+#define CS42888_TXCTL_DAC_SZC_SR (2 << CS42888_TXCTL_DAC_SZC_SHIFT)
+#define CS42888_TXCTL_DAC_SZC_SRZC (3 << CS42888_TXCTL_DAC_SZC_SHIFT)
+#define CS42888_TXCTL_AMUTE_SHIFT 4
+#define CS42888_TXCTL_AMUTE_MASK (1 << CS42888_TXCTL_AMUTE_SHIFT)
+#define CS42888_TXCTL_AMUTE (1 << CS42888_TXCTL_AMUTE_SHIFT)
+#define CS42888_TXCTL_MUTE_ADC_SP_SHIFT 3
+#define CS42888_TXCTL_MUTE_ADC_SP_MASK (1 << CS42888_TXCTL_MUTE_ADC_SP_SHIFT)
+#define CS42888_TXCTL_MUTE_ADC_SP (1 << CS42888_TXCTL_MUTE_ADC_SP_SHIFT)
+#define CS42888_TXCTL_ADC_SNGVOL_SHIFT 2
+#define CS42888_TXCTL_ADC_SNGVOL_MASK (1 << CS42888_TXCTL_ADC_SNGVOL_SHIFT)
+#define CS42888_TXCTL_ADC_SNGVOL (1 << CS42888_TXCTL_ADC_SNGVOL_SHIFT)
+#define CS42888_TXCTL_ADC_SZC_SHIFT 0
+#define CS42888_TXCTL_ADC_SZC_MASK (((1 << CS42888_TXCTL_ADC_SZC_WIDTH) - 1) << CS42888_TXCTL_ADC_SZC_SHIFT)
+#define CS42888_TXCTL_ADC_SZC_IC (0 << CS42888_TXCTL_ADC_SZC_SHIFT)
+#define CS42888_TXCTL_ADC_SZC_ZC (1 << CS42888_TXCTL_ADC_SZC_SHIFT)
+#define CS42888_TXCTL_ADC_SZC_SR (2 << CS42888_TXCTL_ADC_SZC_SHIFT)
+#define CS42888_TXCTL_ADC_SZC_SRZC (3 << CS42888_TXCTL_ADC_SZC_SHIFT)
+
+/* DAC Channel Mute (Address 07h) */
+#define CS42888_DACMUTE_AOUT(n) (0x1 << n)
+#define CS42888_DACMUTE_ALL 0xff
+
+/* Status Control (Address 18h)*/
+#define CS42888_STATUSCTL_INI_SHIFT 2
+#define CS42888_STATUSCTL_INI_WIDTH 2
+#define CS42888_STATUSCTL_INI_MASK (((1 << CS42888_STATUSCTL_INI_WIDTH) - 1) << CS42888_STATUSCTL_INI_SHIFT)
+#define CS42888_STATUSCTL_INT_ACTIVE_HIGH (0 << CS42888_STATUSCTL_INI_SHIFT)
+#define CS42888_STATUSCTL_INT_ACTIVE_LOW (1 << CS42888_STATUSCTL_INI_SHIFT)
+#define CS42888_STATUSCTL_INT_OPEN_DRAIN (2 << CS42888_STATUSCTL_INI_SHIFT)
+
+/* Status (Address 19h)*/
+#define CS42888_STATUS_DAC_CLK_ERR_SHIFT 4
+#define CS42888_STATUS_DAC_CLK_ERR_MASK (1 << CS42888_STATUS_DAC_CLK_ERR_SHIFT)
+#define CS42888_STATUS_ADC_CLK_ERR_SHIFT 3
+#define CS42888_STATUS_ADC_CLK_ERR_MASK (1 << CS42888_STATUS_ADC_CLK_ERR_SHIFT)
+#define CS42888_STATUS_ADC2_OVFL_SHIFT 1
+#define CS42888_STATUS_ADC2_OVFL_MASK (1 << CS42888_STATUS_ADC2_OVFL_SHIFT)
+#define CS42888_STATUS_ADC1_OVFL_SHIFT 0
+#define CS42888_STATUS_ADC1_OVFL_MASK (1 << CS42888_STATUS_ADC1_OVFL_SHIFT)
+
+/* Status Mask (Address 1Ah) */
+#define CS42888_STATUS_DAC_CLK_ERR_M_SHIFT 4
+#define CS42888_STATUS_DAC_CLK_ERR_M_MASK (1 << CS42888_STATUS_DAC_CLK_ERR_M_SHIFT)
+#define CS42888_STATUS_ADC_CLK_ERR_M_SHIFT 3
+#define CS42888_STATUS_ADC_CLK_ERR_M_MASK (1 << CS42888_STATUS_ADC_CLK_ERR_M_SHIFT)
+#define CS42888_STATUS_ADC2_OVFL_M_SHIFT 1
+#define CS42888_STATUS_ADC2_OVFL_M_MASK (1 << CS42888_STATUS_ADC2_OVFL_M_SHIFT)
+#define CS42888_STATUS_ADC1_OVFL_M_SHIFT 0
+#define CS42888_STATUS_ADC1_OVFL_M_MASK (1 << CS42888_STATUS_ADC1_OVFL_M_SHIFT)
+
+/* MUTEC Pin Control (Address 1Bh) */
+#define CS42888_MUTEC_MCPOLARITY_SHIFT 1
+#define CS42888_MUTEC_MCPOLARITY_MASK (1 << CS42888_MUTEC_MCPOLARITY_SHIFT)
+#define CS42888_MUTEC_MCPOLARITY_ACTIVE_LOW (0 << CS42888_MUTEC_MCPOLARITY_SHIFT)
+#define CS42888_MUTEC_MCPOLARITY_ACTIVE_HIGH (1 << CS42888_MUTEC_MCPOLARITY_SHIFT)
+#define CS42888_MUTEC_MUTEC_ACTIVE_SHIFT 0
+#define CS42888_MUTEC_MUTEC_ACTIVE_MASK (1 << CS42888_MUTEC_MUTEC_ACTIVE_SHIFT)
+#define CS42888_MUTEC_MUTEC_ACTIVE (1 << CS42888_MUTEC_MUTEC_ACTIVE_SHIFT)
+#endif /* _CS42888_H */
--
1.8.4
--
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