sound: soc: tegra: add max98090 machine driver

Add max98090 machine driver

Bug 1011167

Change-Id: If8328b8f0a438350cdbc80702de9ab3fc6aba95d
Signed-off-by: Andy Park <andyp@nvidia.com>
(cherry picked from commit b98c6bff61758658e52e0083eee87ae38e9ce41a)
Reviewed-on: http://git-master/r/171661
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Scott Peterson <speterson@nvidia.com>
Tested-by: Gaurav Sarode <gsarode@nvidia.com>

4 files changed, 1454 insertions, 0 deletions

diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 149744f8f3e3..557214021106 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -250,3 +250,23 @@ config SND_SOC_TEGRA_CS42L73
 	  Say Y or M here if you want to add support for SoC audio on Tegra
 	  boards using the CS42L73 codec. Currently, only supported board is
 	  Pluto.
+
+config MACH_HAS_SND_SOC_TEGRA_MAX98090
+	bool
+	help
+	  Machines that use the SND_SOC_TEGRA_MAX98090 driver should select
+	  this config option, in order to allow the user to enable
+	  SND_SOC_TEGRA_MAX98090.
+
+config SND_SOC_TEGRA_MAX98090
+	tristate "SoC Audio support for Tegra boards using a MAX98090 codec"
+	depends on SND_SOC_TEGRA && I2C && TEGRA_DC
+	depends on MACH_HAS_SND_SOC_TEGRA_MAX98090
+	select SND_SOC_TEGRA30_I2S if !ARCH_TEGRA_2x_SOC
+	select SND_SOC_MAX98090
+	select SND_SOC_TEGRA30_DAM if !ARCH_TEGRA_2x_SOC
+	select SND_SOC_TEGRA30_SPDIF if !ARCH_TEGRA_2x_SOC
+	help
+	  Say Y or M here if you want to add support for SoC audio on Tegra
+	  boards using the MAX98090 codec. Currently, only supported board is
+	  Pluto.
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index 496534c6092c..6e57f2dfda26 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -34,6 +34,7 @@ snd-soc-tegra-rt5640-objs := tegra_rt5640.o
 snd-soc-tegra-max98095-objs := tegra_max98095.o
 snd-soc-tegra-vcm-objs := tegra_vcm.o
 snd-soc-tegra-cs42l73-objs := tegra_cs42l73.o
+snd-soc-tegra-max98090-objs := tegra_max98090.o
 
 obj-$(CONFIG_SND_SOC_TEGRA_WM8753) += snd-soc-tegra-wm8753.o
 obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
@@ -46,3 +47,4 @@ obj-$(CONFIG_SND_SOC_TEGRA_MAX98095) += snd-soc-tegra-max98095.o
 obj-$(CONFIG_SND_SOC_TEGRA_P1852) += snd-soc-tegra-vcm.o
 obj-$(CONFIG_SND_SOC_TEGRA_P852) += snd-soc-tegra-vcm.o
 obj-$(CONFIG_SND_SOC_TEGRA_CS42L73) += snd-soc-tegra-cs42l73.o
+obj-$(CONFIG_SND_SOC_TEGRA_MAX98090) += snd-soc-tegra-max98090.o
diff --git a/sound/soc/tegra/tegra_asoc_utils.h b/sound/soc/tegra/tegra_asoc_utils.h
index b6cd42fd2c7e..7a3425b86370 100644
--- a/sound/soc/tegra/tegra_asoc_utils.h
+++ b/sound/soc/tegra/tegra_asoc_utils.h
@@ -73,4 +73,6 @@ int tegra_asoc_switch_register(struct switch_dev *sdev);
 void tegra_asoc_switch_unregister(struct switch_dev *sdev);
 #endif
 
+extern int g_is_call_mode;
+
 #endif
diff --git a/sound/soc/tegra/tegra_max98090.c b/sound/soc/tegra/tegra_max98090.c
new file mode 100644
index 000000000000..6c1fa83a899c
--- /dev/null
+++ b/sound/soc/tegra/tegra_max98090.c
@@ -0,0 +1,1430 @@
+/*
+ * tegra_max98090.c - Tegra machine ASoC driver for boards using
+ * MAX98090 codec.
+ *
+ * Author: Kamal Kannan Balagopalan <kbalagopalan@nvidia.com>
+ * Copyright (C) 2012 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ *
+ * (c) 2010, 2011, 2012 Nvidia Graphics Pvt. Ltd.
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <asm/mach-types.h>
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
+#ifdef CONFIG_SWITCH
+#include <linux/switch.h>
+#endif
+
+#include <mach/tegra_asoc_pdata.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/max98090.h"
+
+#include "tegra_pcm.h"
+#include "tegra_asoc_utils.h"
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+#include "tegra30_ahub.h"
+#include "tegra30_i2s.h"
+#include "tegra30_dam.h"
+#endif
+#define DRV_NAME "tegra-snd-max98090"
+
+#define GPIO_SPKR_EN    BIT(0)
+#define GPIO_HP_MUTE    BIT(1)
+#define GPIO_INT_MIC_EN BIT(2)
+#define GPIO_EXT_MIC_EN BIT(3)
+#define GPIO_HP_DET     BIT(4)
+
+#define DAI_LINK_HIFI		0
+#define DAI_LINK_SPDIF		1
+#define DAI_LINK_BTSCO		2
+#define DAI_LINK_VOICE_CALL	3
+#define DAI_LINK_BT_VOICE_CALL	4
+#define NUM_DAI_LINKS       5
+
+const char *tegra_max98090_i2s_dai_name[TEGRA30_NR_I2S_IFC] = {
+	"tegra30-i2s.0",
+	"tegra30-i2s.1",
+	"tegra30-i2s.2",
+	"tegra30-i2s.3",
+	"tegra30-i2s.4",
+};
+
+struct tegra_max98090 {
+	struct tegra_asoc_utils_data util_data;
+	struct tegra_asoc_platform_data *pdata;
+	int gpio_requested;
+	bool init_done;
+	int is_call_mode;
+	int is_device_bt;
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	struct codec_config codec_info[NUM_I2S_DEVICES];
+#endif
+	struct regulator *dmic_reg;
+	struct regulator *dmic_1v8_reg;
+	enum snd_soc_bias_level bias_level;
+	struct snd_soc_card *pcard;
+#ifdef CONFIG_SWITCH
+	int jack_status;
+#endif
+	int clock_enabled;
+};
+
+static int tegra_call_mode_info(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int tegra_call_mode_get(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct tegra_max98090 *machine = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = machine->is_call_mode;
+
+	return 0;
+}
+
+static int tegra_call_mode_put(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct tegra_max98090 *machine = snd_kcontrol_chip(kcontrol);
+	int is_call_mode_new = ucontrol->value.integer.value[0];
+	int codec_index;
+	unsigned int i;
+
+	if (machine->is_call_mode == is_call_mode_new)
+		return 0;
+
+	if (machine->is_device_bt)
+		codec_index = BT_SCO;
+	else
+		codec_index = HIFI_CODEC;
+
+	if (is_call_mode_new) {
+		if (machine->codec_info[codec_index].rate == 0 ||
+			machine->codec_info[codec_index].channels == 0)
+				return -EINVAL;
+
+		for (i = 0; i < machine->pcard->num_links; i++)
+			machine->pcard->dai_link[i].ignore_suspend = 1;
+
+		tegra30_make_voice_call_connections(
+			&machine->codec_info[codec_index],
+			&machine->codec_info[BASEBAND], 1);
+	} else {
+		tegra30_break_voice_call_connections(
+			&machine->codec_info[codec_index],
+			&machine->codec_info[BASEBAND], 1);
+
+		for (i = 0; i < machine->pcard->num_links; i++)
+			machine->pcard->dai_link[i].ignore_suspend = 0;
+	}
+
+	machine->is_call_mode = is_call_mode_new;
+	g_is_call_mode = machine->is_call_mode;
+
+	return 1;
+}
+
+struct snd_kcontrol_new tegra_max98090_call_mode_control = {
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Call Mode Switch",
+	.private_value = 0xffff,
+	.info = tegra_call_mode_info,
+	.get = tegra_call_mode_get,
+	.put = tegra_call_mode_put
+};
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+static int tegra_max98090_set_dam_cif(int dam_ifc, int srate,
+			int channels, int bit_size, int src_on, int src_srate,
+			int src_channels, int src_bit_size)
+{
+	tegra30_dam_set_gain(dam_ifc, TEGRA30_DAM_CHIN1, 0x1000);
+	tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHOUT,
+				srate);
+	tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHIN1,
+				srate);
+	tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHIN1,
+		channels, bit_size, channels,
+				bit_size);
+	tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHOUT,
+		channels, bit_size, channels,
+				bit_size);
+
+	if (src_on) {
+		tegra30_dam_set_gain(dam_ifc, TEGRA30_DAM_CHIN0_SRC, 0x1000);
+		tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHIN0_SRC,
+			src_srate);
+		tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHIN0_SRC,
+			src_channels, src_bit_size, 1, 16);
+	}
+
+	return 0;
+}
+#endif
+
+static int tegra_max98090_hw_params(struct snd_pcm_substream *substream,
+					struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_card *card = codec->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai);
+#endif
+	int srate, mclk, sample_size, i2s_daifmt, i2s_master;
+	int err;
+	int rate;
+
+	i2s_master = pdata->i2s_param[HIFI_CODEC].is_i2s_master;
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		sample_size = 16;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	srate = params_rate(params);
+	switch (srate) {
+	case 8000:
+	case 16000:
+	case 24000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	default:
+		mclk = 12000000;
+		break;
+	}
+
+	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
+	i2s_daifmt |= i2s_master ? SND_SOC_DAIFMT_CBS_CFS :
+				SND_SOC_DAIFMT_CBM_CFM;
+
+	switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
+	case TEGRA_DAIFMT_I2S:
+		i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+		break;
+	case TEGRA_DAIFMT_DSP_A:
+		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+		break;
+	case TEGRA_DAIFMT_LEFT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+		break;
+	case TEGRA_DAIFMT_RIGHT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+		break;
+	default:
+		dev_err(card->dev, "Can't configure i2s format\n");
+		return -EINVAL;
+	}
+
+	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+	if (err < 0) {
+		if (!(machine->util_data.set_mclk % mclk))
+			mclk = machine->util_data.set_mclk;
+		else {
+			dev_err(card->dev, "Can't configure clocks\n");
+			return err;
+		}
+	}
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+	rate = clk_get_rate(machine->util_data.clk_cdev1);
+
+	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
+	if (err < 0) {
+		dev_err(card->dev, "codec_dai fmt not set\n");
+		return err;
+	}
+
+	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
+	if (err < 0) {
+		dev_err(card->dev, "cpu_dai fmt not set\n");
+		return err;
+	}
+
+	err = snd_soc_dai_set_sysclk(codec_dai, 0, rate, SND_SOC_CLOCK_IN);
+
+	if (err < 0) {
+		dev_err(card->dev, "codec_dai clock not set\n");
+		return err;
+	}
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		tegra_max98090_set_dam_cif(i2s->dam_ifc, srate,
+			params_channels(params), sample_size, 0, 0, 0, 0);
+#endif
+
+	return 0;
+}
+
+static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
+					struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_card *card = rtd->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	int srate, mclk, min_mclk;
+	int err;
+
+	srate = params_rate(params);
+	switch (srate) {
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	case 8000:
+	case 16000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	default:
+		return -EINVAL;
+	}
+	min_mclk = 128 * srate;
+
+	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+	if (err < 0) {
+		if (!(machine->util_data.set_mclk % min_mclk))
+			mclk = machine->util_data.set_mclk;
+		else {
+			dev_err(card->dev, "Can't configure clocks\n");
+			return err;
+		}
+	}
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+	return 0;
+}
+
+static int tegra_bt_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+#endif
+	struct snd_soc_card *card = rtd->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+	int err, srate, mclk, min_mclk, sample_size;
+	int i2s_daifmt;
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		sample_size = 16;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	srate = params_rate(params);
+	switch (srate) {
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	case 8000:
+	case 16000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	default:
+		return -EINVAL;
+	}
+	min_mclk = 64 * srate;
+
+	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+	if (err < 0) {
+		if (!(machine->util_data.set_mclk % min_mclk))
+			mclk = machine->util_data.set_mclk;
+		else {
+			dev_err(card->dev, "Can't configure clocks\n");
+			return err;
+		}
+	}
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
+	i2s_daifmt |= pdata->i2s_param[BT_SCO].is_i2s_master ?
+			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
+
+	switch (pdata->i2s_param[BT_SCO].i2s_mode) {
+	case TEGRA_DAIFMT_I2S:
+		i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+		break;
+	case TEGRA_DAIFMT_DSP_A:
+		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+		break;
+	case TEGRA_DAIFMT_LEFT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+		break;
+	case TEGRA_DAIFMT_RIGHT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+		break;
+	default:
+		dev_err(card->dev, "Can't configure i2s format\n");
+		return -EINVAL;
+	}
+
+	err = snd_soc_dai_set_fmt(rtd->cpu_dai, i2s_daifmt);
+	if (err < 0) {
+		dev_err(rtd->codec->card->dev, "cpu_dai fmt not set\n");
+		return err;
+	}
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		tegra_max98090_set_dam_cif(i2s->dam_ifc, params_rate(params),
+			params_channels(params), sample_size, 0, 0, 0, 0);
+#endif
+
+	return 0;
+}
+
+static int tegra_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card);
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0);
+
+	return 0;
+}
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+static int tegra_max98090_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai);
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card);
+	struct codec_config *codec_info;
+	struct codec_config *bb_info;
+	int codec_index;
+
+	if (!i2s->is_dam_used)
+		return 0;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		/*dam configuration*/
+		if (!i2s->dam_ch_refcount)
+			i2s->dam_ifc = tegra30_dam_allocate_controller();
+
+		tegra30_dam_allocate_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1);
+		i2s->dam_ch_refcount++;
+		tegra30_dam_enable_clock(i2s->dam_ifc);
+
+		tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 +
+				(i2s->dam_ifc*2), i2s->txcif);
+
+		/*
+		*make the dam tx to i2s rx connection if this is the only
+		*client using i2s for playback
+		*/
+		if (i2s->playback_ref_count == 1)
+			tegra30_ahub_set_rx_cif_source(
+				TEGRA30_AHUB_RXCIF_I2S0_RX0 + i2s->id,
+				TEGRA30_AHUB_TXCIF_DAM0_TX0 + i2s->dam_ifc);
+
+		/* enable the dam*/
+		tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_ENABLE,
+				TEGRA30_DAM_CHIN1);
+	} else {
+
+		i2s->is_call_mode_rec = machine->is_call_mode;
+
+		if (!i2s->is_call_mode_rec)
+			return 0;
+
+		if (machine->is_device_bt)
+			codec_index = BT_SCO;
+		else
+			codec_index = HIFI_CODEC;
+
+		codec_info = &machine->codec_info[codec_index];
+		bb_info = &machine->codec_info[BASEBAND];
+
+		/* allocate a dam for voice call recording */
+
+		i2s->call_record_dam_ifc = tegra30_dam_allocate_controller();
+		tegra30_dam_allocate_channel(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_CHIN0_SRC);
+		tegra30_dam_allocate_channel(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_CHIN1);
+		tegra30_dam_enable_clock(i2s->call_record_dam_ifc);
+
+		/* configure the dam */
+		tegra_max98090_set_dam_cif(i2s->call_record_dam_ifc,
+			codec_info->rate, codec_info->channels,
+			codec_info->bitsize, 1, bb_info->rate,
+			bb_info->channels, bb_info->bitsize);
+
+		/* setup the connections for voice call record */
+
+		tegra30_ahub_unset_rx_cif_source(i2s->rxcif);
+		tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX0 +
+			(i2s->call_record_dam_ifc*2),
+			TEGRA30_AHUB_TXCIF_I2S0_TX0 + bb_info->i2s_id);
+		tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 +
+			(i2s->call_record_dam_ifc*2),
+			TEGRA30_AHUB_TXCIF_I2S0_TX0 + codec_info->i2s_id);
+		tegra30_ahub_set_rx_cif_source(i2s->rxcif,
+			TEGRA30_AHUB_TXCIF_DAM0_TX0 +
+			i2s->call_record_dam_ifc);
+
+		/* enable the dam*/
+
+		tegra30_dam_enable(i2s->call_record_dam_ifc,
+				TEGRA30_DAM_ENABLE,
+				TEGRA30_DAM_CHIN1);
+		tegra30_dam_enable(i2s->call_record_dam_ifc,
+				TEGRA30_DAM_ENABLE,
+				TEGRA30_DAM_CHIN0_SRC);
+	}
+
+	return 0;
+}
+
+static void tegra_max98090_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai);
+
+	if (!i2s->is_dam_used)
+		return;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* disable the dam*/
+		tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_DISABLE,
+				TEGRA30_DAM_CHIN1);
+
+		/* disconnect the ahub connections*/
+		tegra30_ahub_unset_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 +
+					(i2s->dam_ifc*2));
+
+		/* disable the dam and free the controller */
+		tegra30_dam_disable_clock(i2s->dam_ifc);
+		tegra30_dam_free_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1);
+		i2s->dam_ch_refcount--;
+		if (!i2s->dam_ch_refcount)
+			tegra30_dam_free_controller(i2s->dam_ifc);
+	 } else {
+
+		if (!i2s->is_call_mode_rec)
+			return;
+
+		i2s->is_call_mode_rec = 0;
+
+		/* disable the dam*/
+		tegra30_dam_enable(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_DISABLE, TEGRA30_DAM_CHIN1);
+		tegra30_dam_enable(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_DISABLE, TEGRA30_DAM_CHIN0_SRC);
+
+		/* disconnect the ahub connections*/
+		tegra30_ahub_unset_rx_cif_source(i2s->rxcif);
+		tegra30_ahub_unset_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX0 +
+			(i2s->call_record_dam_ifc*2));
+		tegra30_ahub_unset_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 +
+			(i2s->call_record_dam_ifc*2));
+
+		/* free the dam channels and dam controller */
+		tegra30_dam_disable_clock(i2s->call_record_dam_ifc);
+		tegra30_dam_free_channel(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_CHIN1);
+		tegra30_dam_free_channel(i2s->call_record_dam_ifc,
+			TEGRA30_DAM_CHIN0_SRC);
+		tegra30_dam_free_controller(i2s->call_record_dam_ifc);
+	 }
+
+	return;
+}
+#endif
+
+static int tegra_voice_call_hw_params(struct snd_pcm_substream *substream,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_card *card = codec->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+	int srate, mclk, i2s_daifmt;
+	int err, rate;
+
+	srate = params_rate(params);
+	switch (srate) {
+	case 8000:
+	case 16000:
+	case 24000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	default:
+		return -EINVAL;
+		break;
+	}
+
+	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
+	i2s_daifmt |= pdata->i2s_param[HIFI_CODEC].is_i2s_master ?
+			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
+
+	switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
+	case TEGRA_DAIFMT_I2S:
+		i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+		break;
+	case TEGRA_DAIFMT_DSP_A:
+		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+		break;
+	case TEGRA_DAIFMT_LEFT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+		break;
+	case TEGRA_DAIFMT_RIGHT_J:
+		i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+		break;
+	default:
+		dev_err(card->dev, "Can't configure i2s format\n");
+		return -EINVAL;
+	}
+
+	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+	if (err < 0) {
+		if (!(machine->util_data.set_mclk % mclk))
+			mclk = machine->util_data.set_mclk;
+		else {
+			dev_err(card->dev, "Can't configure clocks\n");
+			return err;
+		}
+	}
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+	rate = clk_get_rate(machine->util_data.clk_cdev1);
+
+	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
+	if (err < 0) {
+		dev_err(card->dev, "codec_dai fmt not set\n");
+		return err;
+	}
+
+	err = snd_soc_dai_set_sysclk(codec_dai, 0, rate, SND_SOC_CLOCK_IN);
+	if (err < 0) {
+		dev_err(card->dev, "codec_dai clock not set\n");
+		return err;
+	}
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	/* codec configuration */
+	machine->codec_info[HIFI_CODEC].rate = params_rate(params);
+	machine->codec_info[HIFI_CODEC].channels = params_channels(params);
+#endif
+
+	machine->is_device_bt = 0;
+
+	return 0;
+}
+
+static void tegra_voice_call_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct tegra_max98090 *machine  =
+			snd_soc_card_get_drvdata(rtd->codec->card);
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	machine->codec_info[HIFI_CODEC].rate = 0;
+	machine->codec_info[HIFI_CODEC].channels = 0;
+#endif
+
+	return;
+}
+
+static int tegra_bt_voice_call_hw_params(struct snd_pcm_substream *substream,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_card *card = rtd->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	int err, srate, mclk, min_mclk;
+
+	srate = params_rate(params);
+	switch (srate) {
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	case 8000:
+	case 16000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	default:
+		return -EINVAL;
+	}
+	min_mclk = 64 * srate;
+
+	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+	if (err < 0) {
+		if (!(machine->util_data.set_mclk % min_mclk))
+			mclk = machine->util_data.set_mclk;
+		else {
+			dev_err(card->dev, "Can't configure clocks\n");
+			return err;
+		}
+	}
+
+	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	/* codec configuration */
+	machine->codec_info[BT_SCO].rate = params_rate(params);
+	machine->codec_info[BT_SCO].channels = params_channels(params);
+#endif
+
+	machine->is_device_bt = 1;
+
+	return 0;
+}
+
+static void tegra_bt_voice_call_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct tegra_max98090 *machine  =
+			snd_soc_card_get_drvdata(rtd->codec->card);
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	machine->codec_info[BT_SCO].rate = 0;
+	machine->codec_info[BT_SCO].channels = 0;
+#endif
+
+	return;
+}
+
+static struct snd_soc_ops tegra_max98090_ops = {
+	.hw_params = tegra_max98090_hw_params,
+	.hw_free = tegra_hw_free,
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	.startup = tegra_max98090_startup,
+	.shutdown = tegra_max98090_shutdown,
+#endif
+};
+
+static struct snd_soc_ops tegra_spdif_ops = {
+	.hw_params = tegra_spdif_hw_params,
+	.hw_free = tegra_hw_free,
+};
+
+static struct snd_soc_ops tegra_voice_call_ops = {
+	.hw_params = tegra_voice_call_hw_params,
+	.shutdown = tegra_voice_call_shutdown,
+	.hw_free = tegra_hw_free,
+};
+
+static struct snd_soc_ops tegra_bt_voice_call_ops = {
+	.hw_params = tegra_bt_voice_call_hw_params,
+	.shutdown = tegra_bt_voice_call_shutdown,
+	.hw_free = tegra_hw_free,
+};
+
+static struct snd_soc_ops tegra_bt_ops = {
+	.hw_params = tegra_bt_hw_params,
+	.hw_free = tegra_hw_free,
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	.startup = tegra_max98090_startup,
+	.shutdown = tegra_max98090_shutdown,
+#endif
+};
+
+/* Headphone jack */
+struct snd_soc_jack tegra_max98090_hp_jack;
+
+#ifdef CONFIG_SWITCH
+static struct switch_dev tegra_max98090_headset_switch = {
+	.name = "h2w",
+};
+
+/* These values are copied from WiredAccessoryObserver */
+enum headset_state {
+	BIT_NO_HEADSET = 0,
+	BIT_HEADSET = (1 << 0),
+	BIT_HEADSET_NO_MIC = (1 << 1),
+};
+
+/* Headphone jack detection gpios */
+static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
+	.name = "headphone detect",
+	.report = SND_JACK_HEADPHONE,
+	.debounce_time = 150,
+	.invert = 1,
+};
+
+static int tegra_max98090_jack_notifier(struct notifier_block *self,
+	unsigned long action, void *dev)
+{
+	struct snd_soc_jack *jack = dev;
+	struct snd_soc_codec *codec = jack->codec;
+	struct snd_soc_card *card = codec->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	enum headset_state state = BIT_NO_HEADSET;
+
+	if (jack == &tegra_max98090_hp_jack) {
+		machine->jack_status &= ~SND_JACK_HEADPHONE;
+		machine->jack_status |= (action & SND_JACK_HEADPHONE);
+	} else {
+		machine->jack_status &= ~SND_JACK_MICROPHONE;
+		machine->jack_status |= (action & SND_JACK_MICROPHONE);
+	}
+
+	switch (machine->jack_status) {
+	case SND_JACK_HEADPHONE:
+		/* For now force headset mic mode */
+		/* state = BIT_HEADSET_NO_MIC; */
+		state = BIT_HEADSET;
+		break;
+	case SND_JACK_HEADSET:
+		state = BIT_HEADSET;
+		break;
+	case SND_JACK_MICROPHONE:
+		/* mic: would not report */
+	default:
+		state = BIT_NO_HEADSET;
+	}
+
+	switch_set_state(&tegra_max98090_headset_switch, state);
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block tegra_max98090_jack_detect_nb = {
+	.notifier_call = tegra_max98090_jack_notifier,
+};
+#else
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin tegra_max98090_hs_jack_pins[] = {
+	{
+		.pin = "Headset Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+	{
+		.pin = "Headphone Jack",
+		.mask = SND_JACK_HEADPHONE,
+	},
+};
+#endif
+
+static int tegra_max98090_event_int_dmic(struct snd_soc_dapm_widget *w,
+					struct snd_kcontrol *k, int event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+
+	if (machine->dmic_reg && machine->dmic_1v8_reg) {
+		if (SND_SOC_DAPM_EVENT_ON(event)) {
+			regulator_enable(machine->dmic_reg);
+			regulator_enable(machine->dmic_1v8_reg);
+		} else {
+			regulator_disable(machine->dmic_reg);
+			regulator_disable(machine->dmic_1v8_reg);
+		}
+	}
+
+	if (!(machine->gpio_requested & GPIO_INT_MIC_EN))
+		return 0;
+
+	gpio_set_value_cansleep(pdata->gpio_int_mic_en,
+				SND_SOC_DAPM_EVENT_ON(event));
+
+	return 0;
+}
+
+static int tegra_max98090_event_int_spk(struct snd_soc_dapm_widget *w,
+					struct snd_kcontrol *k, int event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+
+	if (!(machine->gpio_requested & GPIO_SPKR_EN))
+		return 0;
+
+	gpio_set_value_cansleep(pdata->gpio_spkr_en,
+				SND_SOC_DAPM_EVENT_ON(event));
+
+	return 0;
+}
+
+static int tegra_max98090_event_hp(struct snd_soc_dapm_widget *w,
+					struct snd_kcontrol *k, int event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+
+	if (!(machine->gpio_requested & GPIO_HP_DET))
+		return 0;
+
+	gpio_set_value_cansleep(pdata->gpio_hp_det,
+				!SND_SOC_DAPM_EVENT_ON(event));
+#if 0
+	if (!(machine->gpio_requested & GPIO_HP_MUTE))
+		return 0;
+
+	gpio_set_value_cansleep(pdata->gpio_hp_mute,
+				!SND_SOC_DAPM_EVENT_ON(event));
+#endif
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = {
+	SND_SOC_DAPM_SPK("Int Spk", tegra_max98090_event_int_spk),
+	SND_SOC_DAPM_OUTPUT("Earpiece"),
+	SND_SOC_DAPM_HP("Headphone Jack", tegra_max98090_event_hp),
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_INPUT("Ext Mic"),
+	SND_SOC_DAPM_INPUT("Int Mic"),
+	SND_SOC_DAPM_MIC("Int D-Mic", tegra_max98090_event_int_dmic),
+};
+
+static const struct snd_soc_dapm_route tegra_max98090_audio_map[] = {
+	{"Int Spk", NULL, "SPKL"},
+	{"Int Spk", NULL, "SPKR"},
+	{"Earpiece", NULL, "RCVL"},
+	{"Earpiece", NULL, "RCVR"},
+	{"Headphone Jack", NULL, "HPL"},
+	{"Headphone Jack", NULL, "HPR"},
+	{"MICBIAS", NULL, "Int Mic"},
+	{"IN12", NULL, "MICBIAS"},
+	{"MICBIAS", NULL, "Ext Mic"},
+	{"IN34", NULL, "MICBIAS"},
+	{"MICBIAS", NULL, "Mic Jack"},
+	{"IN56", NULL, "MICBIAS"},
+	{"DMIC1", NULL, "Int D-Mic"},
+	{"DMIC2", NULL, "Int D-Mic"},
+};
+
+static const struct snd_kcontrol_new tegra_max98090_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Int Spk"),
+	SOC_DAPM_PIN_SWITCH("Earpiece"),
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Mic Jack"),
+	SOC_DAPM_PIN_SWITCH("Int Mic"),
+	SOC_DAPM_PIN_SWITCH("Ext Mic"),
+	SOC_DAPM_PIN_SWITCH("Int D-Mic"),
+};
+
+static int tegra_max98090_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	struct snd_soc_card *card = codec->card;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+#endif
+	int ret;
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	if (machine->codec_info[BASEBAND].i2s_id != -1)
+		i2s->is_dam_used = true;
+#endif
+
+	if (machine->init_done)
+		return 0;
+
+	machine->init_done = true;
+
+	if (gpio_is_valid(pdata->gpio_hp_det)) {
+		/* Headphone detection */
+		tegra_max98090_hp_jack_gpio.gpio = pdata->gpio_hp_det;
+		snd_soc_jack_new(codec, "Headphone Jack",
+				SND_JACK_HEADSET, &tegra_max98090_hp_jack);
+
+#ifndef CONFIG_SWITCH
+		snd_soc_jack_add_pins(&tegra_max98090_hp_jack,
+				ARRAY_SIZE(tegra_max98090_hs_jack_pins),
+				tegra_max98090_hs_jack_pins);
+#else
+		snd_soc_jack_notifier_register(&tegra_max98090_hp_jack,
+					&tegra_max98090_jack_detect_nb);
+#endif
+		snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
+					1,
+					&tegra_max98090_hp_jack_gpio);
+		/* FIXME: Add Mic Jack notifier */
+		machine->gpio_requested |= GPIO_HP_DET;
+	}
+
+	if (gpio_is_valid(pdata->gpio_spkr_en)) {
+		ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
+		if (ret) {
+			dev_err(card->dev, "cannot get spkr_en gpio\n");
+			return ret;
+		}
+		machine->gpio_requested |= GPIO_SPKR_EN;
+
+		gpio_direction_output(pdata->gpio_spkr_en, 0);
+	}
+
+	if (gpio_is_valid(pdata->gpio_hp_mute)) {
+		ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
+		if (ret) {
+			dev_err(card->dev, "cannot get hp_mute gpio\n");
+			return ret;
+		}
+		machine->gpio_requested |= GPIO_HP_MUTE;
+
+		gpio_direction_output(pdata->gpio_hp_mute, 0);
+	}
+
+	if (gpio_is_valid(pdata->gpio_int_mic_en)) {
+		ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
+		if (ret) {
+			dev_err(card->dev, "cannot get int_mic_en gpio\n");
+			return ret;
+		}
+		machine->gpio_requested |= GPIO_INT_MIC_EN;
+
+		/* Disable int mic; enable signal is active-high */
+		gpio_direction_output(pdata->gpio_int_mic_en, 0);
+	}
+
+	if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
+		ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
+		if (ret) {
+			dev_err(card->dev, "cannot get ext_mic_en gpio\n");
+			return ret;
+		}
+		machine->gpio_requested |= GPIO_EXT_MIC_EN;
+
+		/* Enable ext mic; enable signal is active-low */
+		gpio_direction_output(pdata->gpio_ext_mic_en, 0);
+	}
+
+    /* Add call mode switch control */
+	ret = snd_ctl_add(codec->card->snd_card,
+		snd_ctl_new1(&tegra_max98090_call_mode_control, machine));
+	if (ret < 0)
+		return ret;
+
+	ret = tegra_asoc_utils_register_ctls(&machine->util_data);
+	if (ret < 0)
+		return ret;
+
+	snd_soc_dapm_sync(dapm);
+	return 0;
+}
+
+static struct snd_soc_dai_link tegra_max98090_dai[NUM_DAI_LINKS] = {
+	[DAI_LINK_HIFI] = {
+			.name = "MAX98090",
+			.stream_name = "MAX98090 HIFI",
+			.codec_name = "max98090.0-0010",
+			.platform_name = "tegra-pcm-audio",
+			.codec_dai_name = "HiFi",
+			.init = tegra_max98090_init,
+			.ops = &tegra_max98090_ops,
+		},
+	[DAI_LINK_SPDIF] = {
+			.name = "SPDIF",
+			.stream_name = "SPDIF PCM",
+			.codec_name = "spdif-dit.0",
+			.platform_name = "tegra-pcm-audio",
+			.cpu_dai_name = "tegra30-spdif",
+			.codec_dai_name = "dit-hifi",
+			.ops = &tegra_spdif_ops,
+		},
+	[DAI_LINK_BTSCO] = {
+			.name = "BT SCO",
+			.stream_name = "BT SCO PCM",
+			.codec_name = "spdif-dit.1",
+			.platform_name = "tegra-pcm-audio",
+			.codec_dai_name = "dit-hifi",
+			.init = tegra_max98090_init,
+			.ops = &tegra_bt_ops,
+		},
+	[DAI_LINK_VOICE_CALL] = {
+			.name = "VOICE CALL",
+			.stream_name = "VOICE CALL PCM",
+			.codec_name = "max98090.0-0010",
+			.platform_name = "tegra-pcm-audio",
+			.cpu_dai_name = "dit-hifi",
+			.codec_dai_name = "HiFi",
+			.ops = &tegra_voice_call_ops,
+		},
+	[DAI_LINK_BT_VOICE_CALL] = {
+			.name = "BT VOICE CALL",
+			.stream_name = "BT VOICE CALL PCM",
+			.codec_name = "spdif-dit.2",
+			.platform_name = "tegra-pcm-audio",
+			.cpu_dai_name = "dit-hifi",
+			.codec_dai_name = "dit-hifi",
+			.ops = &tegra_bt_voice_call_ops,
+		},
+};
+
+static int tegra_max98090_suspend_post(struct snd_soc_card *card)
+{
+	struct snd_soc_jack_gpio *gpio = &tegra_max98090_hp_jack_gpio;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+
+	if (gpio_is_valid(gpio->gpio))
+		disable_irq(gpio_to_irq(gpio->gpio));
+
+	if (machine->clock_enabled) {
+		machine->clock_enabled = 0;
+		tegra_asoc_utils_clk_disable(&machine->util_data);
+	}
+
+	return 0;
+}
+
+static int tegra_max98090_resume_pre(struct snd_soc_card *card)
+{
+	int val;
+	struct snd_soc_jack_gpio *gpio = &tegra_max98090_hp_jack_gpio;
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+
+	if (gpio_is_valid(gpio->gpio)) {
+		val = gpio_get_value(gpio->gpio);
+		val = gpio->invert ? !val : val;
+		snd_soc_jack_report(gpio->jack, val, gpio->report);
+		enable_irq(gpio_to_irq(gpio->gpio));
+	}
+
+	if (!machine->clock_enabled) {
+		machine->clock_enabled = 1;
+		tegra_asoc_utils_clk_enable(&machine->util_data);
+	}
+
+	return 0;
+}
+
+static int tegra_max98090_set_bias_level(struct snd_soc_card *card,
+					struct snd_soc_dapm_context *dapm,
+					enum snd_soc_bias_level level)
+{
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+
+	if (machine->bias_level == SND_SOC_BIAS_OFF &&
+		level != SND_SOC_BIAS_OFF && (!machine->clock_enabled)) {
+		machine->clock_enabled = 1;
+		tegra_asoc_utils_clk_enable(&machine->util_data);
+		machine->bias_level = level;
+	}
+
+	return 0;
+}
+
+static int tegra_max98090_set_bias_level_post(struct snd_soc_card *card,
+					struct snd_soc_dapm_context *dapm,
+					enum snd_soc_bias_level level)
+{
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+
+	if (machine->bias_level != SND_SOC_BIAS_OFF &&
+		level == SND_SOC_BIAS_OFF && (machine->clock_enabled)) {
+		machine->clock_enabled = 0;
+		tegra_asoc_utils_clk_disable(&machine->util_data);
+	}
+
+	machine->bias_level = level;
+
+	return 0 ;
+}
+
+static struct snd_soc_card snd_soc_tegra_max98090 = {
+	.name = "tegra-max98090",
+	.owner = THIS_MODULE,
+	.dai_link = tegra_max98090_dai,
+	.num_links = ARRAY_SIZE(tegra_max98090_dai),
+	.suspend_post = tegra_max98090_suspend_post,
+	.resume_pre = tegra_max98090_resume_pre,
+	.set_bias_level = tegra_max98090_set_bias_level,
+	.set_bias_level_post = tegra_max98090_set_bias_level_post,
+
+	.controls = tegra_max98090_controls,
+	.num_controls = ARRAY_SIZE(tegra_max98090_controls),
+	.dapm_widgets = tegra_max98090_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
+	.dapm_routes = tegra_max98090_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(tegra_max98090_audio_map),
+	.fully_routed = true,
+};
+
+static __devinit int tegra_max98090_driver_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &snd_soc_tegra_max98090;
+	struct tegra_max98090 *machine;
+	struct tegra_asoc_platform_data *pdata;
+	int ret, i;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "No platform data supplied\n");
+		return -EINVAL;
+	}
+
+	if (pdata->codec_name)
+		card->dai_link->codec_name = pdata->codec_name;
+
+	if (pdata->codec_dai_name)
+		card->dai_link->codec_dai_name = pdata->codec_dai_name;
+
+	machine = kzalloc(sizeof(struct tegra_max98090), GFP_KERNEL);
+	if (!machine) {
+		dev_err(&pdev->dev, "Can't allocate tegra_max98090 struct\n");
+		return -ENOMEM;
+	}
+
+	machine->pdata = pdata;
+	machine->pcard = card;
+	machine->bias_level = SND_SOC_BIAS_STANDBY;
+	machine->clock_enabled = 1;
+
+	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev, card);
+	if (ret)
+		goto err_free_machine;
+
+	machine->dmic_reg = regulator_get(&pdev->dev, "vdd_mic");
+	if (IS_ERR(machine->dmic_reg)) {
+		dev_info(&pdev->dev, "No digital mic regulator found\n");
+		machine->dmic_reg = 0;
+	}
+
+	machine->dmic_1v8_reg = regulator_get(&pdev->dev, "vdd_1v8_mic");
+	if (IS_ERR(machine->dmic_1v8_reg)) {
+		dev_info(&pdev->dev, "No digital mic regulator found\n");
+		machine->dmic_1v8_reg = 0;
+	}
+
+#ifdef CONFIG_SWITCH
+	/* Add h2w switch class support */
+	ret = switch_dev_register(&tegra_max98090_headset_switch);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "not able to register switch device\n");
+		goto err_fini_utils;
+	}
+#endif
+
+	card->dev = &pdev->dev;
+	platform_set_drvdata(pdev, card);
+	snd_soc_card_set_drvdata(card, machine);
+
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	for (i = 0; i < NUM_I2S_DEVICES ; i++) {
+		machine->codec_info[i].i2s_id =
+			pdata->i2s_param[i].audio_port_id;
+		machine->codec_info[i].bitsize =
+			pdata->i2s_param[i].sample_size;
+		machine->codec_info[i].is_i2smaster =
+			pdata->i2s_param[i].is_i2s_master;
+		machine->codec_info[i].rate =
+			pdata->i2s_param[i].rate;
+		machine->codec_info[i].channels =
+			pdata->i2s_param[i].channels;
+		if (pdata->i2s_param[i].i2s_mode == TEGRA_DAIFMT_DSP_A)
+			machine->codec_info[i].is_format_dsp = 1;
+		else
+			machine->codec_info[i].is_format_dsp = 0;
+	}
+
+	tegra_max98090_dai[DAI_LINK_HIFI].cpu_dai_name =
+	tegra_max98090_i2s_dai_name[machine->codec_info[HIFI_CODEC].i2s_id];
+
+	tegra_max98090_dai[DAI_LINK_BTSCO].cpu_dai_name =
+	tegra_max98090_i2s_dai_name[machine->codec_info[BT_SCO].i2s_id];
+#endif
+
+	card->dapm.idle_bias_off = 1;
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+			ret);
+		goto err_switch_unregister;
+	}
+
+	if (!card->instantiated) {
+		dev_err(&pdev->dev, "No MAX98090 codec\n");
+		goto err_unregister_card;
+	}
+
+	ret = tegra_asoc_utils_set_parent(&machine->util_data,
+				pdata->i2s_param[HIFI_CODEC].is_i2s_master);
+	if (ret) {
+		dev_err(&pdev->dev,
+				"tegra_asoc_utils_set_parent failed (%d)\n",
+				ret);
+		goto err_unregister_card;
+	}
+
+	return 0;
+
+err_unregister_card:
+	snd_soc_unregister_card(card);
+err_switch_unregister:
+#ifdef CONFIG_SWITCH
+	switch_dev_unregister(&tegra_max98090_headset_switch);
+#endif
+err_fini_utils:
+	tegra_asoc_utils_fini(&machine->util_data);
+err_free_machine:
+	kfree(machine);
+	return ret;
+}
+
+static int __devexit tegra_max98090_driver_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+
+#ifdef CONFIG_SWITCH
+	switch_dev_unregister(&tegra_max98090_headset_switch);
+#endif
+
+	if (machine->gpio_requested & GPIO_EXT_MIC_EN)
+		gpio_free(pdata->gpio_ext_mic_en);
+	if (machine->gpio_requested & GPIO_INT_MIC_EN)
+		gpio_free(pdata->gpio_int_mic_en);
+	if (machine->gpio_requested & GPIO_HP_MUTE)
+		gpio_free(pdata->gpio_hp_mute);
+	if (machine->gpio_requested & GPIO_SPKR_EN)
+		gpio_free(pdata->gpio_spkr_en);
+	if (machine->gpio_requested & GPIO_HP_DET)
+		snd_soc_jack_free_gpios(&tegra_max98090_hp_jack,
+			1,
+			&tegra_max98090_hp_jack_gpio);
+
+	machine->gpio_requested = 0;
+
+	if (machine->dmic_reg)
+		regulator_put(machine->dmic_reg);
+	if (machine->dmic_1v8_reg)
+		regulator_put(machine->dmic_1v8_reg);
+
+	snd_soc_unregister_card(card);
+
+	tegra_asoc_utils_fini(&machine->util_data);
+
+	kfree(machine);
+
+	return 0;
+}
+
+static struct platform_driver tegra_max98090_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = tegra_max98090_driver_probe,
+	.remove = __devexit_p(tegra_max98090_driver_remove),
+};
+
+static int __init tegra_max98090_modinit(void)
+{
+	return platform_driver_register(&tegra_max98090_driver);
+}
+module_init(tegra_max98090_modinit);
+
+static void __exit tegra_max98090_modexit(void)
+{
+	platform_driver_unregister(&tegra_max98090_driver);
+}
+module_exit(tegra_max98090_modexit);
+
+MODULE_AUTHOR("Kamal Kannan Balagopalan <kbalagopalan@nvidia.com>");
+MODULE_DESCRIPTION("Tegra+MAX98090 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);