Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 778 insertions, 0 deletions

diff --git a/sound/soc/tegra/tegra210_mvc.c b/sound/soc/tegra/tegra210_mvc.c
new file mode 100644
index 000000000..725385e17
--- /dev/null
+++ b/sound/soc/tegra/tegra210_mvc.c
@@ -0,0 +1,778 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// tegra210_mvc.c - Tegra210 MVC driver
+//
+// Copyright (c) 2021 NVIDIA CORPORATION.  All rights reserved.
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "tegra210_mvc.h"
+#include "tegra_cif.h"
+
+static const struct reg_default tegra210_mvc_reg_defaults[] = {
+	{ TEGRA210_MVC_RX_INT_MASK, 0x00000001},
+	{ TEGRA210_MVC_RX_CIF_CTRL, 0x00007700},
+	{ TEGRA210_MVC_TX_INT_MASK, 0x00000001},
+	{ TEGRA210_MVC_TX_CIF_CTRL, 0x00007700},
+	{ TEGRA210_MVC_CG, 0x1},
+	{ TEGRA210_MVC_CTRL, TEGRA210_MVC_CTRL_DEFAULT},
+	{ TEGRA210_MVC_INIT_VOL, 0x00800000},
+	{ TEGRA210_MVC_TARGET_VOL, 0x00800000},
+	{ TEGRA210_MVC_DURATION, 0x000012c0},
+	{ TEGRA210_MVC_DURATION_INV, 0x0006d3a0},
+	{ TEGRA210_MVC_POLY_N1, 0x0000007d},
+	{ TEGRA210_MVC_POLY_N2, 0x00000271},
+	{ TEGRA210_MVC_PEAK_CTRL, 0x000012c0},
+	{ TEGRA210_MVC_CFG_RAM_CTRL, 0x00004000},
+};
+
+static const struct tegra210_mvc_gain_params gain_params = {
+	.poly_coeff = { 23738319, 659403, -3680,
+			15546680, 2530732, -120985,
+			12048422, 5527252, -785042 },
+	.poly_n1 = 16,
+	.poly_n2 = 63,
+	.duration = 150,
+	.duration_inv = 14316558,
+};
+
+static int __maybe_unused tegra210_mvc_runtime_suspend(struct device *dev)
+{
+	struct tegra210_mvc *mvc = dev_get_drvdata(dev);
+
+	regmap_read(mvc->regmap, TEGRA210_MVC_CTRL, &(mvc->ctrl_value));
+
+	regcache_cache_only(mvc->regmap, true);
+	regcache_mark_dirty(mvc->regmap);
+
+	return 0;
+}
+
+static int __maybe_unused tegra210_mvc_runtime_resume(struct device *dev)
+{
+	struct tegra210_mvc *mvc = dev_get_drvdata(dev);
+
+	regcache_cache_only(mvc->regmap, false);
+	regcache_sync(mvc->regmap);
+
+	regmap_write(mvc->regmap, TEGRA210_MVC_CTRL, mvc->ctrl_value);
+	regmap_update_bits(mvc->regmap,
+			   TEGRA210_MVC_SWITCH,
+			   TEGRA210_MVC_VOLUME_SWITCH_MASK,
+			   TEGRA210_MVC_VOLUME_SWITCH_TRIGGER);
+
+	return 0;
+}
+
+static void tegra210_mvc_write_ram(struct regmap *regmap)
+{
+	int i;
+
+	regmap_write(regmap, TEGRA210_MVC_CFG_RAM_CTRL,
+		     TEGRA210_MVC_CFG_RAM_CTRL_SEQ_ACCESS_EN |
+		     TEGRA210_MVC_CFG_RAM_CTRL_ADDR_INIT_EN |
+		     TEGRA210_MVC_CFG_RAM_CTRL_RW_WRITE);
+
+	for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++)
+		regmap_write(regmap, TEGRA210_MVC_CFG_RAM_DATA,
+			     gain_params.poly_coeff[i]);
+}
+
+static void tegra210_mvc_conv_vol(struct tegra210_mvc *mvc, u8 chan, s32 val)
+{
+	/*
+	 * Volume control read from mixer control is with
+	 * 100x scaling; for CURVE_POLY the reg range
+	 * is 0-100 (linear, Q24) and for CURVE_LINEAR
+	 * it is -120dB to +40dB (Q8)
+	 */
+	if (mvc->curve_type == CURVE_POLY) {
+		if (val > 10000)
+			val = 10000;
+		mvc->volume[chan] = ((val * (1<<8)) / 100) << 16;
+	} else {
+		val -= 12000;
+		mvc->volume[chan] = (val * (1<<8)) / 100;
+	}
+}
+
+static u32 tegra210_mvc_get_ctrl_reg(struct snd_kcontrol *kcontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	u32 val;
+
+	pm_runtime_get_sync(cmpnt->dev);
+	regmap_read(mvc->regmap, TEGRA210_MVC_CTRL, &val);
+	pm_runtime_put(cmpnt->dev);
+
+	return val;
+}
+
+static int tegra210_mvc_get_mute(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	u32 val = tegra210_mvc_get_ctrl_reg(kcontrol);
+	u8 mute_mask = TEGRA210_GET_MUTE_VAL(val);
+
+	/*
+	 * If per channel control is enabled, then return
+	 * exact mute/unmute setting of all channels.
+	 *
+	 * Else report setting based on CH0 bit to reflect
+	 * the correct HW state.
+	 */
+	if (val & TEGRA210_MVC_PER_CHAN_CTRL_EN) {
+		ucontrol->value.integer.value[0] = mute_mask;
+	} else {
+		if (mute_mask & TEGRA210_MVC_CH0_MUTE_EN)
+			ucontrol->value.integer.value[0] =
+				TEGRA210_MUTE_MASK_EN;
+		else
+			ucontrol->value.integer.value[0] = 0;
+	}
+
+	return 0;
+}
+
+static int tegra210_mvc_get_master_mute(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	u32 val = tegra210_mvc_get_ctrl_reg(kcontrol);
+	u8 mute_mask = TEGRA210_GET_MUTE_VAL(val);
+
+	/*
+	 * If per channel control is disabled, then return
+	 * master mute/unmute setting based on CH0 bit.
+	 *
+	 * Else report settings based on state of all
+	 * channels.
+	 */
+	if (!(val & TEGRA210_MVC_PER_CHAN_CTRL_EN)) {
+		ucontrol->value.integer.value[0] =
+			mute_mask & TEGRA210_MVC_CH0_MUTE_EN;
+	} else {
+		if (mute_mask == TEGRA210_MUTE_MASK_EN)
+			ucontrol->value.integer.value[0] =
+				TEGRA210_MVC_CH0_MUTE_EN;
+		else
+			ucontrol->value.integer.value[0] = 0;
+	}
+
+	return 0;
+}
+
+static int tegra210_mvc_volume_switch_timeout(struct snd_soc_component *cmpnt)
+{
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	u32 value;
+	int err;
+
+	err = regmap_read_poll_timeout(mvc->regmap, TEGRA210_MVC_SWITCH,
+			value, !(value & TEGRA210_MVC_VOLUME_SWITCH_MASK),
+			10, 10000);
+	if (err < 0)
+		dev_err(cmpnt->dev,
+			"Volume switch trigger is still active, err = %d\n",
+			err);
+
+	return err;
+}
+
+static int tegra210_mvc_update_mute(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *ucontrol,
+				    bool per_chan_ctrl)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	u32 mute_val = ucontrol->value.integer.value[0];
+	u32 per_ch_ctrl_val;
+	bool change = false;
+	int err;
+
+	pm_runtime_get_sync(cmpnt->dev);
+
+	err = tegra210_mvc_volume_switch_timeout(cmpnt);
+	if (err < 0)
+		goto end;
+
+	if (per_chan_ctrl) {
+		per_ch_ctrl_val = TEGRA210_MVC_PER_CHAN_CTRL_EN;
+	} else {
+		per_ch_ctrl_val = 0;
+
+		if (mute_val)
+			mute_val = TEGRA210_MUTE_MASK_EN;
+	}
+
+	regmap_update_bits_check(mvc->regmap, TEGRA210_MVC_CTRL,
+				 TEGRA210_MVC_MUTE_MASK,
+				 mute_val << TEGRA210_MVC_MUTE_SHIFT,
+				 &change);
+
+	if (change) {
+		regmap_update_bits(mvc->regmap, TEGRA210_MVC_CTRL,
+				   TEGRA210_MVC_PER_CHAN_CTRL_EN_MASK,
+				   per_ch_ctrl_val);
+
+		regmap_update_bits(mvc->regmap, TEGRA210_MVC_SWITCH,
+				   TEGRA210_MVC_VOLUME_SWITCH_MASK,
+				   TEGRA210_MVC_VOLUME_SWITCH_TRIGGER);
+	}
+
+end:
+	pm_runtime_put(cmpnt->dev);
+
+	if (err < 0)
+		return err;
+
+	if (change)
+		return 1;
+
+	return 0;
+}
+
+static int tegra210_mvc_put_mute(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	return tegra210_mvc_update_mute(kcontrol, ucontrol, true);
+}
+
+static int tegra210_mvc_put_master_mute(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	return tegra210_mvc_update_mute(kcontrol, ucontrol, false);
+}
+
+static int tegra210_mvc_get_vol(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	u8 chan = TEGRA210_MVC_GET_CHAN(mc->reg, TEGRA210_MVC_TARGET_VOL);
+	s32 val = mvc->volume[chan];
+
+	if (mvc->curve_type == CURVE_POLY) {
+		val = ((val >> 16) * 100) >> 8;
+	} else {
+		val = (val * 100) >> 8;
+		val += 12000;
+	}
+
+	ucontrol->value.integer.value[0] = val;
+
+	return 0;
+}
+
+static int tegra210_mvc_get_master_vol(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	return tegra210_mvc_get_vol(kcontrol, ucontrol);
+}
+
+static int tegra210_mvc_update_vol(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol,
+				   bool per_ch_enable)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	u8 chan = TEGRA210_MVC_GET_CHAN(mc->reg, TEGRA210_MVC_TARGET_VOL);
+	int old_volume = mvc->volume[chan];
+	int err, i;
+
+	pm_runtime_get_sync(cmpnt->dev);
+
+	err = tegra210_mvc_volume_switch_timeout(cmpnt);
+	if (err < 0)
+		goto end;
+
+	tegra210_mvc_conv_vol(mvc, chan, ucontrol->value.integer.value[0]);
+
+	if (mvc->volume[chan] == old_volume) {
+		err = 0;
+		goto end;
+	}
+
+	if (per_ch_enable) {
+		regmap_update_bits(mvc->regmap, TEGRA210_MVC_CTRL,
+				   TEGRA210_MVC_PER_CHAN_CTRL_EN_MASK,
+				   TEGRA210_MVC_PER_CHAN_CTRL_EN);
+	} else {
+		regmap_update_bits(mvc->regmap, TEGRA210_MVC_CTRL,
+				   TEGRA210_MVC_PER_CHAN_CTRL_EN_MASK, 0);
+
+		for (i = 1; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++)
+			mvc->volume[i] = mvc->volume[chan];
+	}
+
+	/* Configure init volume same as target volume */
+	regmap_write(mvc->regmap,
+		TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_INIT_VOL, chan),
+		mvc->volume[chan]);
+
+	regmap_write(mvc->regmap, mc->reg, mvc->volume[chan]);
+
+	regmap_update_bits(mvc->regmap, TEGRA210_MVC_SWITCH,
+			   TEGRA210_MVC_VOLUME_SWITCH_MASK,
+			   TEGRA210_MVC_VOLUME_SWITCH_TRIGGER);
+
+	err = 1;
+
+end:
+	pm_runtime_put(cmpnt->dev);
+
+	return err;
+}
+
+static int tegra210_mvc_put_vol(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	return tegra210_mvc_update_vol(kcontrol, ucontrol, true);
+}
+
+static int tegra210_mvc_put_master_vol(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	return tegra210_mvc_update_vol(kcontrol, ucontrol, false);
+}
+
+static void tegra210_mvc_reset_vol_settings(struct tegra210_mvc *mvc,
+					    struct device *dev)
+{
+	int i;
+
+	/* Change volume to default init for new curve type */
+	if (mvc->curve_type == CURVE_POLY) {
+		for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++)
+			mvc->volume[i] = TEGRA210_MVC_INIT_VOL_DEFAULT_POLY;
+	} else {
+		for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++)
+			mvc->volume[i] = TEGRA210_MVC_INIT_VOL_DEFAULT_LINEAR;
+	}
+
+	pm_runtime_get_sync(dev);
+
+	/* Program curve type */
+	regmap_update_bits(mvc->regmap, TEGRA210_MVC_CTRL,
+			   TEGRA210_MVC_CURVE_TYPE_MASK,
+			   mvc->curve_type <<
+			   TEGRA210_MVC_CURVE_TYPE_SHIFT);
+
+	/* Init volume for all channels */
+	for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++) {
+		regmap_write(mvc->regmap,
+			TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_INIT_VOL, i),
+			mvc->volume[i]);
+		regmap_write(mvc->regmap,
+			TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_TARGET_VOL, i),
+			mvc->volume[i]);
+	}
+
+	/* Trigger volume switch */
+	regmap_update_bits(mvc->regmap, TEGRA210_MVC_SWITCH,
+			   TEGRA210_MVC_VOLUME_SWITCH_MASK,
+			   TEGRA210_MVC_VOLUME_SWITCH_TRIGGER);
+
+	pm_runtime_put(dev);
+}
+
+static int tegra210_mvc_get_curve_type(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+
+	ucontrol->value.enumerated.item[0] = mvc->curve_type;
+
+	return 0;
+}
+
+static int tegra210_mvc_put_curve_type(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt);
+	unsigned int value;
+
+	regmap_read(mvc->regmap, TEGRA210_MVC_ENABLE, &value);
+	if (value & TEGRA210_MVC_EN) {
+		dev_err(cmpnt->dev,
+			"Curve type can't be set when MVC is running\n");
+		return -EINVAL;
+	}
+
+	if (mvc->curve_type == ucontrol->value.enumerated.item[0])
+		return 0;
+
+	mvc->curve_type = ucontrol->value.enumerated.item[0];
+
+	tegra210_mvc_reset_vol_settings(mvc, cmpnt->dev);
+
+	return 1;
+}
+
+static int tegra210_mvc_set_audio_cif(struct tegra210_mvc *mvc,
+				      struct snd_pcm_hw_params *params,
+				      unsigned int reg)
+{
+	unsigned int channels, audio_bits;
+	struct tegra_cif_conf cif_conf;
+
+	memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
+
+	channels = params_channels(params);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		audio_bits = TEGRA_ACIF_BITS_16;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		audio_bits = TEGRA_ACIF_BITS_32;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	cif_conf.audio_ch = channels;
+	cif_conf.client_ch = channels;
+	cif_conf.audio_bits = audio_bits;
+	cif_conf.client_bits = audio_bits;
+
+	tegra_set_cif(mvc->regmap, reg, &cif_conf);
+
+	return 0;
+}
+
+static int tegra210_mvc_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	struct device *dev = dai->dev;
+	struct tegra210_mvc *mvc = snd_soc_dai_get_drvdata(dai);
+	int err, val;
+
+	/*
+	 * Soft Reset: Below performs module soft reset which clears
+	 * all FSM logic, flushes flow control of FIFO and resets the
+	 * state register. It also brings module back to disabled
+	 * state (without flushing the data in the pipe).
+	 */
+	regmap_write(mvc->regmap, TEGRA210_MVC_SOFT_RESET, 1);
+
+	err = regmap_read_poll_timeout(mvc->regmap, TEGRA210_MVC_SOFT_RESET,
+				       val, !val, 10, 10000);
+	if (err < 0) {
+		dev_err(dev, "SW reset failed, err = %d\n", err);
+		return err;
+	}
+
+	/* Set RX CIF */
+	err = tegra210_mvc_set_audio_cif(mvc, params, TEGRA210_MVC_RX_CIF_CTRL);
+	if (err) {
+		dev_err(dev, "Can't set MVC RX CIF: %d\n", err);
+		return err;
+	}
+
+	/* Set TX CIF */
+	err = tegra210_mvc_set_audio_cif(mvc, params, TEGRA210_MVC_TX_CIF_CTRL);
+	if (err) {
+		dev_err(dev, "Can't set MVC TX CIF: %d\n", err);
+		return err;
+	}
+
+	tegra210_mvc_write_ram(mvc->regmap);
+
+	/* Program poly_n1, poly_n2, duration */
+	regmap_write(mvc->regmap, TEGRA210_MVC_POLY_N1, gain_params.poly_n1);
+	regmap_write(mvc->regmap, TEGRA210_MVC_POLY_N2, gain_params.poly_n2);
+	regmap_write(mvc->regmap, TEGRA210_MVC_DURATION, gain_params.duration);
+
+	/* Program duration_inv */
+	regmap_write(mvc->regmap, TEGRA210_MVC_DURATION_INV,
+		     gain_params.duration_inv);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops tegra210_mvc_dai_ops = {
+	.hw_params	= tegra210_mvc_hw_params,
+};
+
+static const char * const tegra210_mvc_curve_type_text[] = {
+	"Poly",
+	"Linear",
+};
+
+static const struct soc_enum tegra210_mvc_curve_type_ctrl =
+	SOC_ENUM_SINGLE_EXT(2, tegra210_mvc_curve_type_text);
+
+#define TEGRA210_MVC_VOL_CTRL(chan)					\
+	SOC_SINGLE_EXT("Channel" #chan " Volume",			\
+		       TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_TARGET_VOL, \
+					       (chan - 1)),		\
+		       0, 16000, 0, tegra210_mvc_get_vol,		\
+		       tegra210_mvc_put_vol)
+
+static const struct snd_kcontrol_new tegra210_mvc_vol_ctrl[] = {
+	/* Per channel volume control */
+	TEGRA210_MVC_VOL_CTRL(1),
+	TEGRA210_MVC_VOL_CTRL(2),
+	TEGRA210_MVC_VOL_CTRL(3),
+	TEGRA210_MVC_VOL_CTRL(4),
+	TEGRA210_MVC_VOL_CTRL(5),
+	TEGRA210_MVC_VOL_CTRL(6),
+	TEGRA210_MVC_VOL_CTRL(7),
+	TEGRA210_MVC_VOL_CTRL(8),
+
+	/* Per channel mute */
+	SOC_SINGLE_EXT("Per Chan Mute Mask",
+		       TEGRA210_MVC_CTRL, 0, TEGRA210_MUTE_MASK_EN, 0,
+		       tegra210_mvc_get_mute, tegra210_mvc_put_mute),
+
+	/* Master volume */
+	SOC_SINGLE_EXT("Volume", TEGRA210_MVC_TARGET_VOL, 0, 16000, 0,
+		       tegra210_mvc_get_master_vol,
+		       tegra210_mvc_put_master_vol),
+
+	/* Master mute */
+	SOC_SINGLE_EXT("Mute", TEGRA210_MVC_CTRL, 0, 1, 0,
+		       tegra210_mvc_get_master_mute,
+		       tegra210_mvc_put_master_mute),
+
+	SOC_ENUM_EXT("Curve Type", tegra210_mvc_curve_type_ctrl,
+		     tegra210_mvc_get_curve_type, tegra210_mvc_put_curve_type),
+};
+
+static struct snd_soc_dai_driver tegra210_mvc_dais[] = {
+	/* Input */
+	{
+		.name = "MVC-RX-CIF",
+		.playback = {
+			.stream_name = "RX-CIF-Playback",
+			.channels_min = 1,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = SNDRV_PCM_FMTBIT_S8 |
+				SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.capture = {
+			.stream_name = "RX-CIF-Capture",
+			.channels_min = 1,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = SNDRV_PCM_FMTBIT_S8 |
+				SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+		},
+	},
+
+	/* Output */
+	{
+		.name = "MVC-TX-CIF",
+		.playback = {
+			.stream_name = "TX-CIF-Playback",
+			.channels_min = 1,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = SNDRV_PCM_FMTBIT_S8 |
+				SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.capture = {
+			.stream_name = "TX-CIF-Capture",
+			.channels_min = 1,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = SNDRV_PCM_FMTBIT_S8 |
+				SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.ops = &tegra210_mvc_dai_ops,
+	}
+};
+
+static const struct snd_soc_dapm_widget tegra210_mvc_widgets[] = {
+	SND_SOC_DAPM_AIF_IN("RX", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("TX", NULL, 0, TEGRA210_MVC_ENABLE,
+			     TEGRA210_MVC_EN_SHIFT, 0),
+};
+
+#define MVC_ROUTES(sname)					\
+	{ "RX XBAR-" sname,	NULL,	"XBAR-TX" },		\
+	{ "RX-CIF-" sname,	NULL,	"RX XBAR-" sname },	\
+	{ "RX",			NULL,	"RX-CIF-" sname },	\
+	{ "TX-CIF-" sname,	NULL,	"TX" },			\
+	{ "TX XBAR-" sname,	NULL,	"TX-CIF-" sname },	\
+	{ "XBAR-RX",            NULL,   "TX XBAR-" sname }
+
+static const struct snd_soc_dapm_route tegra210_mvc_routes[] = {
+	{ "TX", NULL, "RX" },
+	MVC_ROUTES("Playback"),
+	MVC_ROUTES("Capture"),
+};
+
+static const struct snd_soc_component_driver tegra210_mvc_cmpnt = {
+	.dapm_widgets		= tegra210_mvc_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(tegra210_mvc_widgets),
+	.dapm_routes		= tegra210_mvc_routes,
+	.num_dapm_routes	= ARRAY_SIZE(tegra210_mvc_routes),
+	.controls		= tegra210_mvc_vol_ctrl,
+	.num_controls		= ARRAY_SIZE(tegra210_mvc_vol_ctrl),
+};
+
+static bool tegra210_mvc_rd_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case TEGRA210_MVC_RX_STATUS ... TEGRA210_MVC_CONFIG_ERR_TYPE:
+		return true;
+	default:
+		return false;
+	};
+}
+
+static bool tegra210_mvc_wr_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case TEGRA210_MVC_RX_INT_MASK ... TEGRA210_MVC_RX_CIF_CTRL:
+	case TEGRA210_MVC_TX_INT_MASK ... TEGRA210_MVC_TX_CIF_CTRL:
+	case TEGRA210_MVC_ENABLE ... TEGRA210_MVC_CG:
+	case TEGRA210_MVC_CTRL ... TEGRA210_MVC_CFG_RAM_DATA:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool tegra210_mvc_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case TEGRA210_MVC_RX_STATUS:
+	case TEGRA210_MVC_RX_INT_STATUS:
+	case TEGRA210_MVC_RX_INT_SET:
+
+	case TEGRA210_MVC_TX_STATUS:
+	case TEGRA210_MVC_TX_INT_STATUS:
+	case TEGRA210_MVC_TX_INT_SET:
+
+	case TEGRA210_MVC_SOFT_RESET:
+	case TEGRA210_MVC_STATUS:
+	case TEGRA210_MVC_INT_STATUS:
+	case TEGRA210_MVC_SWITCH:
+	case TEGRA210_MVC_CFG_RAM_CTRL:
+	case TEGRA210_MVC_CFG_RAM_DATA:
+	case TEGRA210_MVC_PEAK_VALUE:
+	case TEGRA210_MVC_CTRL:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config tegra210_mvc_regmap_config = {
+	.reg_bits		= 32,
+	.reg_stride		= 4,
+	.val_bits		= 32,
+	.max_register		= TEGRA210_MVC_CONFIG_ERR_TYPE,
+	.writeable_reg		= tegra210_mvc_wr_reg,
+	.readable_reg		= tegra210_mvc_rd_reg,
+	.volatile_reg		= tegra210_mvc_volatile_reg,
+	.reg_defaults		= tegra210_mvc_reg_defaults,
+	.num_reg_defaults	= ARRAY_SIZE(tegra210_mvc_reg_defaults),
+	.cache_type		= REGCACHE_FLAT,
+};
+
+static const struct of_device_id tegra210_mvc_of_match[] = {
+	{ .compatible = "nvidia,tegra210-mvc" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, tegra210_mvc_of_match);
+
+static int tegra210_mvc_platform_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct tegra210_mvc *mvc;
+	void __iomem *regs;
+	int err;
+
+	mvc = devm_kzalloc(dev, sizeof(*mvc), GFP_KERNEL);
+	if (!mvc)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, mvc);
+
+	mvc->curve_type = CURVE_LINEAR;
+	mvc->ctrl_value = TEGRA210_MVC_CTRL_DEFAULT;
+
+	regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	mvc->regmap = devm_regmap_init_mmio(dev, regs,
+					    &tegra210_mvc_regmap_config);
+	if (IS_ERR(mvc->regmap)) {
+		dev_err(dev, "regmap init failed\n");
+		return PTR_ERR(mvc->regmap);
+	}
+
+	regcache_cache_only(mvc->regmap, true);
+
+	err = devm_snd_soc_register_component(dev, &tegra210_mvc_cmpnt,
+					      tegra210_mvc_dais,
+					      ARRAY_SIZE(tegra210_mvc_dais));
+	if (err) {
+		dev_err(dev, "can't register MVC component, err: %d\n", err);
+		return err;
+	}
+
+	pm_runtime_enable(dev);
+
+	tegra210_mvc_reset_vol_settings(mvc, &pdev->dev);
+
+	return 0;
+}
+
+static int tegra210_mvc_platform_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct dev_pm_ops tegra210_mvc_pm_ops = {
+	SET_RUNTIME_PM_OPS(tegra210_mvc_runtime_suspend,
+			   tegra210_mvc_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver tegra210_mvc_driver = {
+	.driver = {
+		.name = "tegra210-mvc",
+		.of_match_table = tegra210_mvc_of_match,
+		.pm = &tegra210_mvc_pm_ops,
+	},
+	.probe = tegra210_mvc_platform_probe,
+	.remove = tegra210_mvc_platform_remove,
+};
+module_platform_driver(tegra210_mvc_driver)
+
+MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>");
+MODULE_DESCRIPTION("Tegra210 MVC ASoC driver");
+MODULE_LICENSE("GPL v2");