Merge "ASoC: msm: add machine driver for kona"

asoc/Kbuild

@@ -84,6 +84,11 @@ ifdef CONFIG_SND_SOC_QCS405
 	MACHINE_OBJS += qcs405.o
 endif
 
+# for KONA sound card driver
+ifdef CONFIG_SND_SOC_KONA
+	MACHINE_OBJS += kona.o
+endif
+
 ifdef CONFIG_SND_SOC_CPE
 	CPE_LSM_OBJS += msm-cpe-lsm.o
 endif
@@ -177,6 +182,9 @@ machine_dlkm-y := $(MACHINE_OBJS)
 obj-$(CONFIG_SND_SOC_QCS405) += machine_dlkm.o
 machine_dlkm-y := $(MACHINE_OBJS)
 
+obj-$(CONFIG_SND_SOC_KONA) += machine_dlkm.o
+machine_dlkm-y := $(MACHINE_OBJS)
+
 obj-$(CONFIG_SND_SOC_CPE) += cpe_lsm_dlkm.o
 cpe_lsm_dlkm-y := $(CPE_LSM_OBJS)
 

asoc/kona.c

@@ -0,0 +1,696 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/of_device.h>
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/info.h>
+#include <dsp/audio_notifier.h>
+#include <dsp/q6afe-v2.h>
+#include <dsp/q6core.h>
+#include "device_event.h"
+#include "msm-pcm-routing-v2.h"
+#include "codecs/wsa881x.h"
+
+#define DRV_NAME "kona-asoc-snd"
+
+#define __CHIPSET__ "KONA "
+#define MSM_DAILINK_NAME(name) (__CHIPSET__#name)
+
+#define SAMPLING_RATE_8KHZ      8000
+#define SAMPLING_RATE_16KHZ     16000
+
+struct msm_asoc_mach_data {
+	u32 mclk_freq;
+	struct snd_info_entry *codec_root;
+};
+
+struct dev_config {
+	u32 sample_rate;
+	u32 bit_format;
+	u32 channels;
+};
+
+enum {
+	PRIM_AUX_PCM = 0,
+};
+
+static const char *const auxpcm_rate_text[] = {"KHZ_8", "KHZ_16"};
+static char const *bit_format_text[] = {"S16_LE", "S24_LE", "S24_3LE",
+					  "S32_LE"};
+
+/* Default configuration of aux pcm channels */
+static struct dev_config aux_pcm_rx_cfg[] = {
+	[PRIM_AUX_PCM] = {SAMPLING_RATE_8KHZ, SNDRV_PCM_FORMAT_S16_LE, 1},
+};
+
+static struct dev_config aux_pcm_tx_cfg[] = {
+	[PRIM_AUX_PCM] = {SAMPLING_RATE_8KHZ, SNDRV_PCM_FORMAT_S16_LE, 1},
+};
+
+static SOC_ENUM_SINGLE_EXT_DECL(prim_aux_pcm_rx_sample_rate, auxpcm_rate_text);
+static SOC_ENUM_SINGLE_EXT_DECL(prim_aux_pcm_tx_sample_rate, auxpcm_rate_text);
+static SOC_ENUM_SINGLE_EXT_DECL(aux_pcm_rx_format, bit_format_text);
+static SOC_ENUM_SINGLE_EXT_DECL(aux_pcm_tx_format, bit_format_text);
+
+static inline int param_is_mask(int p)
+{
+	return (p >= SNDRV_PCM_HW_PARAM_FIRST_MASK) &&
+			(p <= SNDRV_PCM_HW_PARAM_LAST_MASK);
+}
+
+static inline struct snd_mask *param_to_mask(struct snd_pcm_hw_params *p,
+					     int n)
+{
+	return &(p->masks[n - SNDRV_PCM_HW_PARAM_FIRST_MASK]);
+}
+
+static void param_set_mask(struct snd_pcm_hw_params *p, int n,
+			   unsigned int bit)
+{
+	if (bit >= SNDRV_MASK_MAX)
+		return;
+	if (param_is_mask(n)) {
+		struct snd_mask *m = param_to_mask(p, n);
+
+		m->bits[0] = 0;
+		m->bits[1] = 0;
+		m->bits[bit >> 5] |= (1 << (bit & 31));
+	}
+}
+
+static int aux_pcm_get_port_idx(struct snd_kcontrol *kcontrol)
+{
+	int idx = 0;
+
+	if (strnstr(kcontrol->id.name, "PRIM_AUX_PCM",
+		    sizeof("PRIM_AUX_PCM"))) {
+		idx = PRIM_AUX_PCM;
+	} else {
+		pr_err("%s: unsupported port: %s\n",
+			__func__, kcontrol->id.name);
+		idx = -EINVAL;
+	}
+
+	return idx;
+}
+
+static int aux_pcm_get_format(int value)
+{
+	int format = 0;
+
+	switch (value) {
+	case 1:
+		format = SNDRV_PCM_FORMAT_S24_LE;
+		break;
+	case 2:
+		format = SNDRV_PCM_FORMAT_S24_3LE;
+		break;
+	case 3:
+		format = SNDRV_PCM_FORMAT_S32_LE;
+		break;
+	case 0:
+	default:
+		format = SNDRV_PCM_FORMAT_S16_LE;
+		break;
+	}
+	return format;
+}
+
+static int auxpcm_get_format_value(int format)
+{
+	int value = 0;
+
+	switch (format) {
+	case SNDRV_PCM_FORMAT_S24_LE:
+		value = 1;
+		break;
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		value = 2;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		value = 3;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+	default:
+		value = 0;
+		break;
+	}
+	return value;
+}
+
+static int aux_pcm_get_sample_rate(int value)
+{
+	int sample_rate = 0;
+
+	switch (value) {
+	case 1:
+		sample_rate = SAMPLING_RATE_16KHZ;
+		break;
+	case 0:
+	default:
+		sample_rate = SAMPLING_RATE_8KHZ;
+		break;
+	}
+	return sample_rate;
+}
+
+static int aux_pcm_get_sample_rate_val(int sample_rate)
+{
+	int sample_rate_val = 0;
+
+	switch (sample_rate) {
+	case SAMPLING_RATE_16KHZ:
+		sample_rate_val = 1;
+		break;
+	case SAMPLING_RATE_8KHZ:
+	default:
+		sample_rate_val = 0;
+		break;
+	}
+	return sample_rate_val;
+}
+
+static int msm_aux_pcm_rx_format_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	ucontrol->value.enumerated.item[0] =
+		auxpcm_get_format_value(aux_pcm_rx_cfg[idx].bit_format);
+
+	pr_debug("%s: idx[%d]_rx_format = %d, item = %d\n", __func__,
+		idx, aux_pcm_rx_cfg[idx].bit_format,
+		ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int msm_aux_pcm_rx_format_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	aux_pcm_rx_cfg[idx].bit_format =
+		aux_pcm_get_format(ucontrol->value.enumerated.item[0]);
+
+	pr_debug("%s: idx[%d]_rx_format = %d, item = %d\n", __func__,
+		  idx, aux_pcm_rx_cfg[idx].bit_format,
+		  ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int msm_aux_pcm_tx_format_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	ucontrol->value.enumerated.item[0] =
+		auxpcm_get_format_value(aux_pcm_tx_cfg[idx].bit_format);
+
+	pr_debug("%s: idx[%d]_tx_format = %d, item = %d\n", __func__,
+		idx, aux_pcm_tx_cfg[idx].bit_format,
+		ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int msm_aux_pcm_tx_format_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	aux_pcm_tx_cfg[idx].bit_format =
+		aux_pcm_get_format(ucontrol->value.enumerated.item[0]);
+
+	pr_debug("%s: idx[%d]_tx_format = %d, item = %d\n", __func__,
+		  idx, aux_pcm_tx_cfg[idx].bit_format,
+		  ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int aux_pcm_rx_sample_rate_put(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	aux_pcm_rx_cfg[idx].sample_rate =
+		aux_pcm_get_sample_rate(ucontrol->value.enumerated.item[0]);
+
+	pr_debug("%s: idx[%d]_rx_sample_rate = %d, item = %d\n", __func__,
+		 idx, aux_pcm_rx_cfg[idx].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int aux_pcm_rx_sample_rate_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	ucontrol->value.enumerated.item[0] =
+	     aux_pcm_get_sample_rate_val(aux_pcm_rx_cfg[idx].sample_rate);
+
+	pr_debug("%s: idx[%d]_rx_sample_rate = %d, item = %d\n", __func__,
+		 idx, aux_pcm_rx_cfg[idx].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int aux_pcm_tx_sample_rate_put(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	aux_pcm_tx_cfg[idx].sample_rate =
+		aux_pcm_get_sample_rate(ucontrol->value.enumerated.item[0]);
+
+	pr_debug("%s: idx[%d]_tx_sample_rate = %d, item = %d\n", __func__,
+		 idx, aux_pcm_tx_cfg[idx].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int aux_pcm_tx_sample_rate_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = aux_pcm_get_port_idx(kcontrol);
+
+	if (idx < 0)
+		return idx;
+
+	ucontrol->value.enumerated.item[0] =
+	     aux_pcm_get_sample_rate_val(aux_pcm_tx_cfg[idx].sample_rate);
+
+	pr_debug("%s: idx[%d]_tx_sample_rate = %d, item = %d\n", __func__,
+		 idx, aux_pcm_tx_cfg[idx].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static const struct snd_kcontrol_new msm_snd_controls[] = {
+	SOC_ENUM_EXT("PRIM_AUX_PCM_RX Format", aux_pcm_rx_format,
+			msm_aux_pcm_rx_format_get, msm_aux_pcm_rx_format_put),
+	SOC_ENUM_EXT("PRIM_AUX_PCM_TX Format", aux_pcm_tx_format,
+			msm_aux_pcm_tx_format_get, msm_aux_pcm_tx_format_put),
+	SOC_ENUM_EXT("PRIM_AUX_PCM_RX SampleRate", prim_aux_pcm_rx_sample_rate,
+			aux_pcm_rx_sample_rate_get,
+			aux_pcm_rx_sample_rate_put),
+	SOC_ENUM_EXT("PRIM_AUX_PCM_TX SampleRate", prim_aux_pcm_tx_sample_rate,
+			aux_pcm_tx_sample_rate_get,
+			aux_pcm_tx_sample_rate_put),
+};
+
+static int msm_populate_dai_link_component_of_node(
+					struct snd_soc_card *card)
+{
+	int i, index, ret = 0;
+	struct device *cdev = card->dev;
+	struct snd_soc_dai_link *dai_link = card->dai_link;
+	struct device_node *np;
+
+	if (!cdev) {
+		dev_err(cdev, "%s: Sound card device memory NULL\n", __func__);
+		return -ENODEV;
+	}
+
+	for (i = 0; i < card->num_links; i++) {
+		if (dai_link[i].platform_of_node && dai_link[i].cpu_of_node)
+			continue;
+
+		/* populate platform_of_node for snd card dai links */
+		if (dai_link[i].platform_name &&
+		    !dai_link[i].platform_of_node) {
+			index = of_property_match_string(cdev->of_node,
+						"asoc-platform-names",
+						dai_link[i].platform_name);
+			if (index < 0) {
+				dev_err(cdev, "%s: No match found for platform name: %s\n",
+					__func__, dai_link[i].platform_name);
+				ret = index;
+				goto err;
+			}
+			np = of_parse_phandle(cdev->of_node, "asoc-platform",
+					      index);
+			if (!np) {
+				dev_err(cdev, "%s: retrieving phandle for platform %s, index %d failed\n",
+					__func__, dai_link[i].platform_name,
+					index);
+				ret = -ENODEV;
+				goto err;
+			}
+			dai_link[i].platform_of_node = np;
+			dai_link[i].platform_name = NULL;
+		}
+
+		/* populate cpu_of_node for snd card dai links */
+		if (dai_link[i].cpu_dai_name && !dai_link[i].cpu_of_node) {
+			index = of_property_match_string(cdev->of_node,
+						 "asoc-cpu-names",
+						 dai_link[i].cpu_dai_name);
+			if (index >= 0) {
+				np = of_parse_phandle(cdev->of_node, "asoc-cpu",
+						index);
+				if (!np) {
+					dev_err(cdev, "%s: retrieving phandle for cpu dai %s failed\n",
+						__func__,
+						dai_link[i].cpu_dai_name);
+					ret = -ENODEV;
+					goto err;
+				}
+				dai_link[i].cpu_of_node = np;
+				dai_link[i].cpu_dai_name = NULL;
+			}
+		}
+
+		/* populate codec_of_node for snd card dai links */
+		if (dai_link[i].codec_name && !dai_link[i].codec_of_node) {
+			index = of_property_match_string(cdev->of_node,
+						 "asoc-codec-names",
+						 dai_link[i].codec_name);
+			if (index < 0)
+				continue;
+			np = of_parse_phandle(cdev->of_node, "asoc-codec",
+					      index);
+			if (!np) {
+				dev_err(cdev, "%s: retrieving phandle for codec %s failed\n",
+					__func__, dai_link[i].codec_name);
+				ret = -ENODEV;
+				goto err;
+			}
+			dai_link[i].codec_of_node = np;
+			dai_link[i].codec_name = NULL;
+		}
+	}
+
+err:
+	return ret;
+}
+
+static int msm_audrx_stub_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret = -EINVAL;
+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, "msm-stub-codec");
+
+	if (!component) {
+		pr_err("* %s: No match for msm-stub-codec component\n", __func__);
+		return ret;
+	}
+
+	ret = snd_soc_add_component_controls(component, msm_snd_controls,
+			ARRAY_SIZE(msm_snd_controls));
+	if (ret < 0) {
+		dev_err(component->dev,
+			"%s: add_codec_controls failed, err = %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int msm_snd_stub_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	return 0;
+}
+
+static int msm_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_dai_link *dai_link = rtd->dai_link;
+	struct snd_interval *rate = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_CHANNELS);
+	int rc = 0;
+
+	pr_debug("%s: format = %d, rate = %d\n",
+		  __func__, params_format(params), params_rate(params));
+
+	switch (dai_link->id) {
+	case MSM_BACKEND_DAI_AUXPCM_RX:
+		param_set_mask(params, SNDRV_PCM_HW_PARAM_FORMAT,
+			aux_pcm_rx_cfg[PRIM_AUX_PCM].bit_format);
+		rate->min = rate->max =
+			aux_pcm_rx_cfg[PRIM_AUX_PCM].sample_rate;
+		channels->min = channels->max =
+			aux_pcm_rx_cfg[PRIM_AUX_PCM].channels;
+		break;
+	case MSM_BACKEND_DAI_AUXPCM_TX:
+		param_set_mask(params, SNDRV_PCM_HW_PARAM_FORMAT,
+			aux_pcm_tx_cfg[PRIM_AUX_PCM].bit_format);
+		rate->min = rate->max =
+			aux_pcm_tx_cfg[PRIM_AUX_PCM].sample_rate;
+		channels->min = channels->max =
+			aux_pcm_tx_cfg[PRIM_AUX_PCM].channels;
+		break;
+	default:
+		rate->min = rate->max = SAMPLING_RATE_8KHZ;
+		break;
+	}
+
+	return rc;
+}
+
+static struct snd_soc_ops msm_stub_be_ops = {
+	.hw_params = msm_snd_stub_hw_params,
+};
+
+struct snd_soc_card snd_soc_card_stub_msm = {
+	.name		= "kona-stub-snd-card",
+};
+
+static struct snd_soc_dai_link msm_stub_fe_dai_links[] = {
+	/* FrontEnd DAI Links */
+	{
+		.name = "MSMSTUB Media1",
+		.stream_name = "MultiMedia1",
+		.cpu_dai_name = "MultiMedia1",
+		.platform_name = "msm-pcm-dsp.0",
+		.dynamic = 1,
+		.async_ops = ASYNC_DPCM_SND_SOC_PREPARE,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST,
+			SND_SOC_DPCM_TRIGGER_POST},
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.ignore_suspend = 1,
+		/* this dainlink has playback support */
+		.ignore_pmdown_time = 1,
+		.id = MSM_FRONTEND_DAI_MULTIMEDIA1
+	},
+};
+
+static struct snd_soc_dai_link msm_stub_be_dai_links[] = {
+	/* Backend DAI Links */
+	{
+		.name = LPASS_BE_AUXPCM_RX,
+		.stream_name = "AUX PCM Playback",
+		.cpu_dai_name = "msm-dai-q6-auxpcm.1",
+		.platform_name = "msm-pcm-routing",
+		.codec_name = "msm-stub-codec.1",
+		.codec_dai_name = "msm-stub-rx",
+		.no_pcm = 1,
+		.dpcm_playback = 1,
+		.id = MSM_BACKEND_DAI_AUXPCM_RX,
+		.init = &msm_audrx_stub_init,
+		.be_hw_params_fixup = msm_be_hw_params_fixup,
+		.ignore_pmdown_time = 1,
+		.ignore_suspend = 1,
+		.ops = &msm_stub_be_ops,
+	},
+	{
+		.name = LPASS_BE_AUXPCM_TX,
+		.stream_name = "AUX PCM Capture",
+		.cpu_dai_name = "msm-dai-q6-auxpcm.1",
+		.platform_name = "msm-pcm-routing",
+		.codec_name = "msm-stub-codec.1",
+		.codec_dai_name = "msm-stub-tx",
+		.no_pcm = 1,
+		.dpcm_capture = 1,
+		.id = MSM_BACKEND_DAI_AUXPCM_TX,
+		.be_hw_params_fixup = msm_be_hw_params_fixup,
+		.ignore_suspend = 1,
+		.ops = &msm_stub_be_ops,
+	},
+};
+
+static struct snd_soc_dai_link msm_stub_dai_links[
+			 ARRAY_SIZE(msm_stub_fe_dai_links) +
+			 ARRAY_SIZE(msm_stub_be_dai_links)];
+
+static const struct of_device_id kona_asoc_machine_of_match[]  = {
+	{ .compatible = "qcom,kona-asoc-snd-stub",
+	  .data = "stub_codec"},
+	{},
+};
+
+static struct snd_soc_card *populate_snd_card_dailinks(struct device *dev)
+{
+	struct snd_soc_card *card = NULL;
+	struct snd_soc_dai_link *dailink;
+	int len_1, len_2;
+	int total_links;
+	const struct of_device_id *match;
+
+	match = of_match_node(kona_asoc_machine_of_match, dev->of_node);
+	if (!match) {
+		dev_err(dev, "%s: No DT match found for sound card\n",
+			__func__);
+		return NULL;
+	}
+
+	if (!strcmp(match->data, "stub_codec")) {
+		card = &snd_soc_card_stub_msm;
+		len_1 = ARRAY_SIZE(msm_stub_fe_dai_links);
+		len_2 = len_1 + ARRAY_SIZE(msm_stub_be_dai_links);
+
+		memcpy(msm_stub_dai_links,
+		       msm_stub_fe_dai_links,
+		       sizeof(msm_stub_fe_dai_links));
+		memcpy(msm_stub_dai_links + len_1,
+		       msm_stub_be_dai_links,
+		       sizeof(msm_stub_be_dai_links));
+
+		dailink = msm_stub_dai_links;
+		total_links = len_2;
+	}
+
+	if (card) {
+		card->dai_link = dailink;
+		card->num_links = total_links;
+	}
+
+	return card;
+}
+
+static int msm_asoc_machine_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card;
+	struct msm_asoc_mach_data *pdata;
+	const struct of_device_id *match;
+	int ret;
+
+	if (!pdev->dev.of_node) {
+		dev_err(&pdev->dev, "%s: No platform supplied from device tree\n", __func__);
+		return -EINVAL;
+	}
+
+	pdata = devm_kzalloc(&pdev->dev,
+			sizeof(struct msm_asoc_mach_data), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	card = populate_snd_card_dailinks(&pdev->dev);
+	if (!card) {
+		dev_err(&pdev->dev, "%s: Card uninitialized\n", __func__);
+		ret = -EINVAL;
+		goto err;
+	}
+	card->dev = &pdev->dev;
+	platform_set_drvdata(pdev, card);
+	snd_soc_card_set_drvdata(card, pdata);
+
+	ret = snd_soc_of_parse_card_name(card, "qcom,model");
+	if (ret) {
+		dev_err(&pdev->dev, "%s: parse card name failed, err:%d\n",
+			__func__, ret);
+		goto err;
+	}
+
+	match = of_match_node(kona_asoc_machine_of_match,
+			pdev->dev.of_node);
+	if (!match) {
+		dev_err(&pdev->dev, "%s: no matched codec is found.\n",
+			__func__);
+		goto err;
+	}
+
+	ret = msm_populate_dai_link_component_of_node(card);
+	if (ret) {
+		ret = -EPROBE_DEFER;
+		goto err;
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret) {
+		dev_err(&pdev->dev, "%s: snd_soc_register_card failed (%d)\n",
+			__func__, ret);
+		goto err;
+	}
+	dev_info(&pdev->dev, "%s: Sound card %s registered\n",
+		 __func__, card->name);
+
+	return 0;
+err:
+	devm_kfree(&pdev->dev, pdata);
+	return ret;
+}
+
+static int msm_asoc_machine_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+	return 0;
+}
+
+static struct platform_driver kona_asoc_machine_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = kona_asoc_machine_of_match,
+	},
+	.probe = msm_asoc_machine_probe,
+	.remove = msm_asoc_machine_remove,
+};
+module_platform_driver(kona_asoc_machine_driver);
+
+MODULE_DESCRIPTION("ALSA SoC msm");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, kona_asoc_machine_of_match);