Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 2618 insertions, 0 deletions

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
new file mode 100644
index 000000000..776250feb
--- /dev/null
+++ b/sound/soc/soc-topology.c
@@ -0,0 +1,2618 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// soc-topology.c  --  ALSA SoC Topology
+//
+// Copyright (C) 2012 Texas Instruments Inc.
+// Copyright (C) 2015 Intel Corporation.
+//
+// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//		K, Mythri P <mythri.p.k@intel.com>
+//		Prusty, Subhransu S <subhransu.s.prusty@intel.com>
+//		B, Jayachandran <jayachandran.b@intel.com>
+//		Abdullah, Omair M <omair.m.abdullah@intel.com>
+//		Jin, Yao <yao.jin@intel.com>
+//		Lin, Mengdong <mengdong.lin@intel.com>
+//
+//  Add support to read audio firmware topology alongside firmware text. The
+//  topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
+//  equalizers, firmware, coefficients etc.
+//
+//  This file only manages the core ALSA and ASoC components, all other bespoke
+//  firmware topology data is passed to component drivers for bespoke handling.
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/list.h>
+#include <linux/firmware.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/soc-topology.h>
+#include <sound/tlv.h>
+
+/*
+ * We make several passes over the data (since it wont necessarily be ordered)
+ * and process objects in the following order. This guarantees the component
+ * drivers will be ready with any vendor data before the mixers and DAPM objects
+ * are loaded (that may make use of the vendor data).
+ */
+#define SOC_TPLG_PASS_MANIFEST		0
+#define SOC_TPLG_PASS_VENDOR		1
+#define SOC_TPLG_PASS_MIXER		2
+#define SOC_TPLG_PASS_WIDGET		3
+#define SOC_TPLG_PASS_PCM_DAI		4
+#define SOC_TPLG_PASS_GRAPH		5
+#define SOC_TPLG_PASS_PINS		6
+#define SOC_TPLG_PASS_BE_DAI		7
+#define SOC_TPLG_PASS_LINK		8
+
+#define SOC_TPLG_PASS_START	SOC_TPLG_PASS_MANIFEST
+#define SOC_TPLG_PASS_END	SOC_TPLG_PASS_LINK
+
+/* topology context */
+struct soc_tplg {
+	const struct firmware *fw;
+
+	/* runtime FW parsing */
+	const u8 *pos;		/* read postion */
+	const u8 *hdr_pos;	/* header position */
+	unsigned int pass;	/* pass number */
+
+	/* component caller */
+	struct device *dev;
+	struct snd_soc_component *comp;
+	u32 index;	/* current block index */
+	u32 req_index;	/* required index, only loaded/free matching blocks */
+
+	/* vendor specific kcontrol operations */
+	const struct snd_soc_tplg_kcontrol_ops *io_ops;
+	int io_ops_count;
+
+	/* vendor specific bytes ext handlers, for TLV bytes controls */
+	const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
+	int bytes_ext_ops_count;
+
+	/* optional fw loading callbacks to component drivers */
+	struct snd_soc_tplg_ops *ops;
+};
+
+static int soc_tplg_process_headers(struct soc_tplg *tplg);
+static void soc_tplg_complete(struct soc_tplg *tplg);
+struct snd_soc_dapm_widget *
+snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
+			 const struct snd_soc_dapm_widget *widget);
+struct snd_soc_dapm_widget *
+snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
+			 const struct snd_soc_dapm_widget *widget);
+
+/* check we dont overflow the data for this control chunk */
+static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
+	unsigned int count, size_t bytes, const char *elem_type)
+{
+	const u8 *end = tplg->pos + elem_size * count;
+
+	if (end > tplg->fw->data + tplg->fw->size) {
+		dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
+			elem_type);
+		return -EINVAL;
+	}
+
+	/* check there is enough room in chunk for control.
+	   extra bytes at the end of control are for vendor data here  */
+	if (elem_size * count > bytes) {
+		dev_err(tplg->dev,
+			"ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
+			elem_type, count, elem_size, bytes);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
+{
+	const u8 *end = tplg->hdr_pos;
+
+	if (end >= tplg->fw->data + tplg->fw->size)
+		return 1;
+	return 0;
+}
+
+static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
+{
+	return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
+}
+
+static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
+{
+	return (unsigned long)(tplg->pos - tplg->fw->data);
+}
+
+/* mapping of Kcontrol types and associated operations. */
+static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
+	{SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
+		snd_soc_put_volsw, snd_soc_info_volsw},
+	{SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
+		snd_soc_put_volsw_sx, NULL},
+	{SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
+		snd_soc_put_enum_double, snd_soc_info_enum_double},
+	{SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
+		snd_soc_put_enum_double, NULL},
+	{SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
+		snd_soc_bytes_put, snd_soc_bytes_info},
+	{SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
+		snd_soc_put_volsw_range, snd_soc_info_volsw_range},
+	{SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
+		snd_soc_put_xr_sx, snd_soc_info_xr_sx},
+	{SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
+		snd_soc_put_strobe, NULL},
+	{SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
+		snd_soc_dapm_put_volsw, snd_soc_info_volsw},
+	{SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
+		snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
+	{SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
+		snd_soc_dapm_put_enum_double, NULL},
+	{SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
+		snd_soc_dapm_put_enum_double, NULL},
+	{SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
+		snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
+};
+
+struct soc_tplg_map {
+	int uid;
+	int kid;
+};
+
+/* mapping of widget types from UAPI IDs to kernel IDs */
+static const struct soc_tplg_map dapm_map[] = {
+	{SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
+	{SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
+	{SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
+	{SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
+	{SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
+	{SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
+	{SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
+	{SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
+	{SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
+	{SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
+	{SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
+	{SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
+	{SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
+	{SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
+	{SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
+	{SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
+	{SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
+	{SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
+	{SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
+	{SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
+	{SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
+	{SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
+	{SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
+	{SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
+};
+
+static int tplc_chan_get_reg(struct soc_tplg *tplg,
+	struct snd_soc_tplg_channel *chan, int map)
+{
+	int i;
+
+	for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
+		if (chan[i].id == map)
+			return chan[i].reg;
+	}
+
+	return -EINVAL;
+}
+
+static int tplc_chan_get_shift(struct soc_tplg *tplg,
+	struct snd_soc_tplg_channel *chan, int map)
+{
+	int i;
+
+	for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
+		if (chan[i].id == map)
+			return chan[i].shift;
+	}
+
+	return -EINVAL;
+}
+
+static int get_widget_id(int tplg_type)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
+		if (tplg_type == dapm_map[i].uid)
+			return dapm_map[i].kid;
+	}
+
+	return -EINVAL;
+}
+
+static inline void soc_bind_err(struct soc_tplg *tplg,
+	struct snd_soc_tplg_ctl_hdr *hdr, int index)
+{
+	dev_err(tplg->dev,
+		"ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
+		hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
+		soc_tplg_get_offset(tplg));
+}
+
+static inline void soc_control_err(struct soc_tplg *tplg,
+	struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
+{
+	dev_err(tplg->dev,
+		"ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
+		name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
+		soc_tplg_get_offset(tplg));
+}
+
+/* pass vendor data to component driver for processing */
+static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	int ret = 0;
+
+	if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
+		ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
+	else {
+		dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
+			hdr->vendor_type);
+		return -EINVAL;
+	}
+
+	if (ret < 0)
+		dev_err(tplg->dev,
+			"ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
+			soc_tplg_get_hdr_offset(tplg),
+			soc_tplg_get_hdr_offset(tplg),
+			hdr->type, hdr->vendor_type);
+	return ret;
+}
+
+/* pass vendor data to component driver for processing */
+static int soc_tplg_vendor_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	if (tplg->pass != SOC_TPLG_PASS_VENDOR)
+		return 0;
+
+	return soc_tplg_vendor_load_(tplg, hdr);
+}
+
+/* optionally pass new dynamic widget to component driver. This is mainly for
+ * external widgets where we can assign private data/ops */
+static int soc_tplg_widget_load(struct soc_tplg *tplg,
+	struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->widget_load)
+		return tplg->ops->widget_load(tplg->comp, tplg->index, w,
+			tplg_w);
+
+	return 0;
+}
+
+/* optionally pass new dynamic widget to component driver. This is mainly for
+ * external widgets where we can assign private data/ops */
+static int soc_tplg_widget_ready(struct soc_tplg *tplg,
+	struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
+		return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
+			tplg_w);
+
+	return 0;
+}
+
+/* pass DAI configurations to component driver for extra initialization */
+static int soc_tplg_dai_load(struct soc_tplg *tplg,
+	struct snd_soc_dai_driver *dai_drv,
+	struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->dai_load)
+		return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
+			pcm, dai);
+
+	return 0;
+}
+
+/* pass link configurations to component driver for extra initialization */
+static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
+	struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->link_load)
+		return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
+
+	return 0;
+}
+
+/* tell the component driver that all firmware has been loaded in this request */
+static void soc_tplg_complete(struct soc_tplg *tplg)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->complete)
+		tplg->ops->complete(tplg->comp);
+}
+
+/* add a dynamic kcontrol */
+static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
+	const struct snd_kcontrol_new *control_new, const char *prefix,
+	void *data, struct snd_kcontrol **kcontrol)
+{
+	int err;
+
+	*kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
+	if (*kcontrol == NULL) {
+		dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
+		control_new->name);
+		return -ENOMEM;
+	}
+
+	err = snd_ctl_add(card, *kcontrol);
+	if (err < 0) {
+		dev_err(dev, "ASoC: Failed to add %s: %d\n",
+			control_new->name, err);
+		return err;
+	}
+
+	return 0;
+}
+
+/* add a dynamic kcontrol for component driver */
+static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
+	struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
+{
+	struct snd_soc_component *comp = tplg->comp;
+
+	return soc_tplg_add_dcontrol(comp->card->snd_card,
+				comp->dev, k, comp->name_prefix, comp, kcontrol);
+}
+
+/* remove a mixer kcontrol */
+static void remove_mixer(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_card *card = comp->card->snd_card;
+	struct soc_mixer_control *sm =
+		container_of(dobj, struct soc_mixer_control, dobj);
+	const unsigned int *p = NULL;
+
+	if (pass != SOC_TPLG_PASS_MIXER)
+		return;
+
+	if (dobj->ops && dobj->ops->control_unload)
+		dobj->ops->control_unload(comp, dobj);
+
+	if (sm->dobj.control.kcontrol->tlv.p)
+		p = sm->dobj.control.kcontrol->tlv.p;
+	snd_ctl_remove(card, sm->dobj.control.kcontrol);
+	list_del(&sm->dobj.list);
+	kfree(sm);
+	kfree(p);
+}
+
+/* remove an enum kcontrol */
+static void remove_enum(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_card *card = comp->card->snd_card;
+	struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
+	int i;
+
+	if (pass != SOC_TPLG_PASS_MIXER)
+		return;
+
+	if (dobj->ops && dobj->ops->control_unload)
+		dobj->ops->control_unload(comp, dobj);
+
+	snd_ctl_remove(card, se->dobj.control.kcontrol);
+	list_del(&se->dobj.list);
+
+	kfree(se->dobj.control.dvalues);
+	for (i = 0; i < se->items; i++)
+		kfree(se->dobj.control.dtexts[i]);
+	kfree(se);
+}
+
+/* remove a byte kcontrol */
+static void remove_bytes(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_card *card = comp->card->snd_card;
+	struct soc_bytes_ext *sb =
+		container_of(dobj, struct soc_bytes_ext, dobj);
+
+	if (pass != SOC_TPLG_PASS_MIXER)
+		return;
+
+	if (dobj->ops && dobj->ops->control_unload)
+		dobj->ops->control_unload(comp, dobj);
+
+	snd_ctl_remove(card, sb->dobj.control.kcontrol);
+	list_del(&sb->dobj.list);
+	kfree(sb);
+}
+
+/* remove a widget and it's kcontrols - routes must be removed first */
+static void remove_widget(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_card *card = comp->card->snd_card;
+	struct snd_soc_dapm_widget *w =
+		container_of(dobj, struct snd_soc_dapm_widget, dobj);
+	int i;
+
+	if (pass != SOC_TPLG_PASS_WIDGET)
+		return;
+
+	if (dobj->ops && dobj->ops->widget_unload)
+		dobj->ops->widget_unload(comp, dobj);
+
+	if (!w->kcontrols)
+		goto free_news;
+
+	/*
+	 * Dynamic Widgets either have 1..N enum kcontrols or mixers.
+	 * The enum may either have an array of values or strings.
+	 */
+	if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
+		/* enumerated widget mixer */
+		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
+			struct snd_kcontrol *kcontrol = w->kcontrols[i];
+			struct soc_enum *se =
+				(struct soc_enum *)kcontrol->private_value;
+			int j;
+
+			snd_ctl_remove(card, kcontrol);
+
+			kfree(se->dobj.control.dvalues);
+			for (j = 0; j < se->items; j++)
+				kfree(se->dobj.control.dtexts[j]);
+
+			kfree(se);
+			kfree(w->kcontrol_news[i].name);
+		}
+	} else {
+		/* volume mixer or bytes controls */
+		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
+			struct snd_kcontrol *kcontrol = w->kcontrols[i];
+
+			if (dobj->widget.kcontrol_type
+			    == SND_SOC_TPLG_TYPE_MIXER)
+				kfree(kcontrol->tlv.p);
+
+			/* Private value is used as struct soc_mixer_control
+			 * for volume mixers or soc_bytes_ext for bytes
+			 * controls.
+			 */
+			kfree((void *)kcontrol->private_value);
+			snd_ctl_remove(card, kcontrol);
+			kfree(w->kcontrol_news[i].name);
+		}
+	}
+
+free_news:
+	kfree(w->kcontrol_news);
+
+	/* widget w is freed by soc-dapm.c */
+}
+
+/* remove DAI configurations */
+static void remove_dai(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_soc_dai_driver *dai_drv =
+		container_of(dobj, struct snd_soc_dai_driver, dobj);
+
+	if (pass != SOC_TPLG_PASS_PCM_DAI)
+		return;
+
+	if (dobj->ops && dobj->ops->dai_unload)
+		dobj->ops->dai_unload(comp, dobj);
+
+	kfree(dai_drv->name);
+	list_del(&dobj->list);
+	kfree(dai_drv);
+}
+
+/* remove link configurations */
+static void remove_link(struct snd_soc_component *comp,
+	struct snd_soc_dobj *dobj, int pass)
+{
+	struct snd_soc_dai_link *link =
+		container_of(dobj, struct snd_soc_dai_link, dobj);
+
+	if (pass != SOC_TPLG_PASS_PCM_DAI)
+		return;
+
+	if (dobj->ops && dobj->ops->link_unload)
+		dobj->ops->link_unload(comp, dobj);
+
+	kfree(link->name);
+	kfree(link->stream_name);
+	kfree(link->cpu_dai_name);
+
+	list_del(&dobj->list);
+	snd_soc_remove_dai_link(comp->card, link);
+	kfree(link);
+}
+
+/* bind a kcontrol to it's IO handlers */
+static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
+	struct snd_kcontrol_new *k,
+	const struct soc_tplg *tplg)
+{
+	const struct snd_soc_tplg_kcontrol_ops *ops;
+	const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
+	int num_ops, i;
+
+	if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
+		&& k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
+		&& (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ
+		    || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
+		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+		struct soc_bytes_ext *sbe;
+		struct snd_soc_tplg_bytes_control *be;
+
+		sbe = (struct soc_bytes_ext *)k->private_value;
+		be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
+
+		/* TLV bytes controls need standard kcontrol info handler,
+		 * TLV callback and extended put/get handlers.
+		 */
+		k->info = snd_soc_bytes_info_ext;
+		k->tlv.c = snd_soc_bytes_tlv_callback;
+
+		ext_ops = tplg->bytes_ext_ops;
+		num_ops = tplg->bytes_ext_ops_count;
+		for (i = 0; i < num_ops; i++) {
+			if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
+				sbe->put = ext_ops[i].put;
+			if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
+				sbe->get = ext_ops[i].get;
+		}
+
+		if (sbe->put && sbe->get)
+			return 0;
+		else
+			return -EINVAL;
+	}
+
+	/* try and map vendor specific kcontrol handlers first */
+	ops = tplg->io_ops;
+	num_ops = tplg->io_ops_count;
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
+	}
+
+	/* vendor specific handlers found ? */
+	if (k->put && k->get && k->info)
+		return 0;
+
+	/* none found so try standard kcontrol handlers */
+	ops = io_ops;
+	num_ops = ARRAY_SIZE(io_ops);
+	for (i = 0; i < num_ops; i++) {
+
+		if (k->put == NULL && ops[i].id == hdr->ops.put)
+			k->put = ops[i].put;
+		if (k->get == NULL && ops[i].id == hdr->ops.get)
+			k->get = ops[i].get;
+		if (k->info == NULL && ops[i].id == hdr->ops.info)
+			k->info = ops[i].info;
+	}
+
+	/* standard handlers found ? */
+	if (k->put && k->get && k->info)
+		return 0;
+
+	/* nothing to bind */
+	return -EINVAL;
+}
+
+/* bind a widgets to it's evnt handlers */
+int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
+		const struct snd_soc_tplg_widget_events *events,
+		int num_events, u16 event_type)
+{
+	int i;
+
+	w->event = NULL;
+
+	for (i = 0; i < num_events; i++) {
+		if (event_type == events[i].type) {
+
+			/* found - so assign event */
+			w->event = events[i].event_handler;
+			return 0;
+		}
+	}
+
+	/* not found */
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
+
+/* optionally pass new dynamic kcontrol to component driver. */
+static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
+	struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->control_load)
+		return tplg->ops->control_load(tplg->comp, tplg->index, k,
+			hdr);
+
+	return 0;
+}
+
+
+static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
+	struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
+{
+	unsigned int item_len = 2 * sizeof(unsigned int);
+	unsigned int *p;
+
+	p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	p[0] = SNDRV_CTL_TLVT_DB_SCALE;
+	p[1] = item_len;
+	p[2] = scale->min;
+	p[3] = (scale->step & TLV_DB_SCALE_MASK)
+			| (scale->mute ? TLV_DB_SCALE_MUTE : 0);
+
+	kc->tlv.p = (void *)p;
+	return 0;
+}
+
+static int soc_tplg_create_tlv(struct soc_tplg *tplg,
+	struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
+{
+	struct snd_soc_tplg_ctl_tlv *tplg_tlv;
+
+	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
+		return 0;
+
+	if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
+		tplg_tlv = &tc->tlv;
+		switch (tplg_tlv->type) {
+		case SNDRV_CTL_TLVT_DB_SCALE:
+			return soc_tplg_create_tlv_db_scale(tplg, kc,
+					&tplg_tlv->scale);
+
+		/* TODO: add support for other TLV types */
+		default:
+			dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
+					tplg_tlv->type);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
+	struct snd_kcontrol_new *kc)
+{
+	kfree(kc->tlv.p);
+}
+
+static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
+	size_t size)
+{
+	struct snd_soc_tplg_bytes_control *be;
+	struct soc_bytes_ext *sbe;
+	struct snd_kcontrol_new kc;
+	int i, err;
+
+	if (soc_tplg_check_elem_count(tplg,
+		sizeof(struct snd_soc_tplg_bytes_control), count,
+			size, "mixer bytes")) {
+		dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
+			count);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < count; i++) {
+		be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
+
+		/* validate kcontrol */
+		if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+
+		sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
+		if (sbe == NULL)
+			return -ENOMEM;
+
+		tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
+			be->priv.size);
+
+		dev_dbg(tplg->dev,
+			"ASoC: adding bytes kcontrol %s with access 0x%x\n",
+			be->hdr.name, be->hdr.access);
+
+		memset(&kc, 0, sizeof(kc));
+		kc.name = be->hdr.name;
+		kc.private_value = (long)sbe;
+		kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc.access = be->hdr.access;
+
+		sbe->max = be->max;
+		sbe->dobj.type = SND_SOC_DOBJ_BYTES;
+		sbe->dobj.ops = tplg->ops;
+		INIT_LIST_HEAD(&sbe->dobj.list);
+
+		/* map io handlers */
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
+		if (err) {
+			soc_control_err(tplg, &be->hdr, be->hdr.name);
+			kfree(sbe);
+			continue;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc,
+			(struct snd_soc_tplg_ctl_hdr *)be);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				be->hdr.name);
+			kfree(sbe);
+			continue;
+		}
+
+		/* register control here */
+		err = soc_tplg_add_kcontrol(tplg, &kc,
+			&sbe->dobj.control.kcontrol);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to add %s\n",
+				be->hdr.name);
+			kfree(sbe);
+			continue;
+		}
+
+		list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
+	}
+	return 0;
+
+}
+
+static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
+	size_t size)
+{
+	struct snd_soc_tplg_mixer_control *mc;
+	struct soc_mixer_control *sm;
+	struct snd_kcontrol_new kc;
+	int i, err;
+
+	if (soc_tplg_check_elem_count(tplg,
+		sizeof(struct snd_soc_tplg_mixer_control),
+		count, size, "mixers")) {
+
+		dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
+			count);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < count; i++) {
+		mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
+
+		/* validate kcontrol */
+		if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+
+		sm = kzalloc(sizeof(*sm), GFP_KERNEL);
+		if (sm == NULL)
+			return -ENOMEM;
+		tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
+			mc->priv.size);
+
+		dev_dbg(tplg->dev,
+			"ASoC: adding mixer kcontrol %s with access 0x%x\n",
+			mc->hdr.name, mc->hdr.access);
+
+		memset(&kc, 0, sizeof(kc));
+		kc.name = mc->hdr.name;
+		kc.private_value = (long)sm;
+		kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc.access = mc->hdr.access;
+
+		/* we only support FL/FR channel mapping atm */
+		sm->reg = tplc_chan_get_reg(tplg, mc->channel,
+			SNDRV_CHMAP_FL);
+		sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
+			SNDRV_CHMAP_FR);
+		sm->shift = tplc_chan_get_shift(tplg, mc->channel,
+			SNDRV_CHMAP_FL);
+		sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
+			SNDRV_CHMAP_FR);
+
+		sm->max = mc->max;
+		sm->min = mc->min;
+		sm->invert = mc->invert;
+		sm->platform_max = mc->platform_max;
+		sm->dobj.index = tplg->index;
+		sm->dobj.ops = tplg->ops;
+		sm->dobj.type = SND_SOC_DOBJ_MIXER;
+		INIT_LIST_HEAD(&sm->dobj.list);
+
+		/* map io handlers */
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
+		if (err) {
+			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
+			kfree(sm);
+			continue;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc,
+			(struct snd_soc_tplg_ctl_hdr *) mc);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				mc->hdr.name);
+			kfree(sm);
+			continue;
+		}
+
+		/* create any TLV data */
+		soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
+
+		/* register control here */
+		err = soc_tplg_add_kcontrol(tplg, &kc,
+			&sm->dobj.control.kcontrol);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to add %s\n",
+				mc->hdr.name);
+			soc_tplg_free_tlv(tplg, &kc);
+			kfree(sm);
+			continue;
+		}
+
+		list_add(&sm->dobj.list, &tplg->comp->dobj_list);
+	}
+
+	return 0;
+}
+
+static int soc_tplg_denum_create_texts(struct soc_enum *se,
+	struct snd_soc_tplg_enum_control *ec)
+{
+	int i, ret;
+
+	se->dobj.control.dtexts =
+		kcalloc(ec->items, sizeof(char *), GFP_KERNEL);
+	if (se->dobj.control.dtexts == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < ec->items; i++) {
+
+		if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
+			ret = -EINVAL;
+			goto err;
+		}
+
+		se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
+		if (!se->dobj.control.dtexts[i]) {
+			ret = -ENOMEM;
+			goto err;
+		}
+	}
+
+	se->texts = (const char * const *)se->dobj.control.dtexts;
+	return 0;
+
+err:
+	for (--i; i >= 0; i--)
+		kfree(se->dobj.control.dtexts[i]);
+	kfree(se->dobj.control.dtexts);
+	return ret;
+}
+
+static int soc_tplg_denum_create_values(struct soc_enum *se,
+	struct snd_soc_tplg_enum_control *ec)
+{
+	if (ec->items > sizeof(*ec->values))
+		return -EINVAL;
+
+	se->dobj.control.dvalues = kmemdup(ec->values,
+					   ec->items * sizeof(u32),
+					   GFP_KERNEL);
+	if (!se->dobj.control.dvalues)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
+	size_t size)
+{
+	struct snd_soc_tplg_enum_control *ec;
+	struct soc_enum *se;
+	struct snd_kcontrol_new kc;
+	int i, ret, err;
+
+	if (soc_tplg_check_elem_count(tplg,
+		sizeof(struct snd_soc_tplg_enum_control),
+		count, size, "enums")) {
+
+		dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
+			count);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < count; i++) {
+		ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
+		tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
+			ec->priv.size);
+
+		/* validate kcontrol */
+		if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+
+		se = kzalloc((sizeof(*se)), GFP_KERNEL);
+		if (se == NULL)
+			return -ENOMEM;
+
+		dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
+			ec->hdr.name, ec->items);
+
+		memset(&kc, 0, sizeof(kc));
+		kc.name = ec->hdr.name;
+		kc.private_value = (long)se;
+		kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc.access = ec->hdr.access;
+
+		se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
+		se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
+			SNDRV_CHMAP_FL);
+		se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
+			SNDRV_CHMAP_FL);
+
+		se->items = ec->items;
+		se->mask = ec->mask;
+		se->dobj.index = tplg->index;
+		se->dobj.type = SND_SOC_DOBJ_ENUM;
+		se->dobj.ops = tplg->ops;
+		INIT_LIST_HEAD(&se->dobj.list);
+
+		switch (ec->hdr.ops.info) {
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+		case SND_SOC_TPLG_CTL_ENUM_VALUE:
+			err = soc_tplg_denum_create_values(se, ec);
+			if (err < 0) {
+				dev_err(tplg->dev,
+					"ASoC: could not create values for %s\n",
+					ec->hdr.name);
+				kfree(se);
+				continue;
+			}
+			/* fall through and create texts */
+		case SND_SOC_TPLG_CTL_ENUM:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+			err = soc_tplg_denum_create_texts(se, ec);
+			if (err < 0) {
+				dev_err(tplg->dev,
+					"ASoC: could not create texts for %s\n",
+					ec->hdr.name);
+				kfree(se);
+				continue;
+			}
+			break;
+		default:
+			dev_err(tplg->dev,
+				"ASoC: invalid enum control type %d for %s\n",
+				ec->hdr.ops.info, ec->hdr.name);
+			kfree(se);
+			continue;
+		}
+
+		/* map io handlers */
+		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
+		if (err) {
+			soc_control_err(tplg, &ec->hdr, ec->hdr.name);
+			kfree(se);
+			continue;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc,
+			(struct snd_soc_tplg_ctl_hdr *) ec);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				ec->hdr.name);
+			kfree(se);
+			continue;
+		}
+
+		/* register control here */
+		ret = soc_tplg_add_kcontrol(tplg,
+			&kc, &se->dobj.control.kcontrol);
+		if (ret < 0) {
+			dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
+				ec->hdr.name);
+			kfree(se);
+			continue;
+		}
+
+		list_add(&se->dobj.list, &tplg->comp->dobj_list);
+	}
+
+	return 0;
+}
+
+static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_ctl_hdr *control_hdr;
+	int i;
+
+	if (tplg->pass != SOC_TPLG_PASS_MIXER) {
+		tplg->pos += hdr->size + hdr->payload_size;
+		return 0;
+	}
+
+	dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
+		soc_tplg_get_offset(tplg));
+
+	for (i = 0; i < hdr->count; i++) {
+
+		control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
+
+		if (control_hdr->size != sizeof(*control_hdr)) {
+			dev_err(tplg->dev, "ASoC: invalid control size\n");
+			return -EINVAL;
+		}
+
+		switch (control_hdr->ops.info) {
+		case SND_SOC_TPLG_CTL_VOLSW:
+		case SND_SOC_TPLG_CTL_STROBE:
+		case SND_SOC_TPLG_CTL_VOLSW_SX:
+		case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
+		case SND_SOC_TPLG_CTL_RANGE:
+		case SND_SOC_TPLG_DAPM_CTL_VOLSW:
+		case SND_SOC_TPLG_DAPM_CTL_PIN:
+			soc_tplg_dmixer_create(tplg, 1, hdr->payload_size);
+			break;
+		case SND_SOC_TPLG_CTL_ENUM:
+		case SND_SOC_TPLG_CTL_ENUM_VALUE:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+			soc_tplg_denum_create(tplg, 1, hdr->payload_size);
+			break;
+		case SND_SOC_TPLG_CTL_BYTES:
+			soc_tplg_dbytes_create(tplg, 1, hdr->payload_size);
+			break;
+		default:
+			soc_bind_err(tplg, control_hdr, i);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+/* optionally pass new dynamic kcontrol to component driver. */
+static int soc_tplg_add_route(struct soc_tplg *tplg,
+	struct snd_soc_dapm_route *route)
+{
+	if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
+		return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
+			route);
+
+	return 0;
+}
+
+static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
+	struct snd_soc_dapm_route route;
+	struct snd_soc_tplg_dapm_graph_elem *elem;
+	int count = hdr->count, i;
+
+	if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
+		tplg->pos += hdr->size + hdr->payload_size;
+		return 0;
+	}
+
+	if (soc_tplg_check_elem_count(tplg,
+		sizeof(struct snd_soc_tplg_dapm_graph_elem),
+		count, hdr->payload_size, "graph")) {
+
+		dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
+			count);
+		return -EINVAL;
+	}
+
+	dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
+		hdr->index);
+
+	for (i = 0; i < count; i++) {
+		elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
+		tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
+
+		/* validate routes */
+		if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+		if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+		if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			return -EINVAL;
+
+		route.source = elem->source;
+		route.sink = elem->sink;
+		route.connected = NULL; /* set to NULL atm for tplg users */
+		if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
+			route.control = NULL;
+		else
+			route.control = elem->control;
+
+		soc_tplg_add_route(tplg, &route);
+
+		/* add route, but keep going if some fail */
+		snd_soc_dapm_add_routes(dapm, &route, 1);
+	}
+
+	return 0;
+}
+
+static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
+	struct soc_tplg *tplg, int num_kcontrols)
+{
+	struct snd_kcontrol_new *kc;
+	struct soc_mixer_control *sm;
+	struct snd_soc_tplg_mixer_control *mc;
+	int i, err;
+
+	kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
+	if (kc == NULL)
+		return NULL;
+
+	for (i = 0; i < num_kcontrols; i++) {
+		mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
+		sm = kzalloc(sizeof(*sm), GFP_KERNEL);
+		if (sm == NULL)
+			goto err;
+
+		tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
+			mc->priv.size);
+
+		/* validate kcontrol */
+		if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			goto err_str;
+
+		dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
+			mc->hdr.name, i);
+
+		kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
+		if (kc[i].name == NULL)
+			goto err_str;
+		kc[i].private_value = (long)sm;
+		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc[i].access = mc->hdr.access;
+
+		/* we only support FL/FR channel mapping atm */
+		sm->reg = tplc_chan_get_reg(tplg, mc->channel,
+			SNDRV_CHMAP_FL);
+		sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
+			SNDRV_CHMAP_FR);
+		sm->shift = tplc_chan_get_shift(tplg, mc->channel,
+			SNDRV_CHMAP_FL);
+		sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
+			SNDRV_CHMAP_FR);
+
+		sm->max = mc->max;
+		sm->min = mc->min;
+		sm->invert = mc->invert;
+		sm->platform_max = mc->platform_max;
+		sm->dobj.index = tplg->index;
+		INIT_LIST_HEAD(&sm->dobj.list);
+
+		/* map io handlers */
+		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
+		if (err) {
+			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
+			kfree(sm);
+			continue;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc[i],
+			(struct snd_soc_tplg_ctl_hdr *)mc);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				mc->hdr.name);
+			kfree(sm);
+			continue;
+		}
+
+		/* create any TLV data */
+		soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
+	}
+	return kc;
+
+err_str:
+	kfree(sm);
+err:
+	for (--i; i >= 0; i--) {
+		kfree((void *)kc[i].private_value);
+		kfree(kc[i].name);
+	}
+	kfree(kc);
+	return NULL;
+}
+
+static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
+	struct soc_tplg *tplg, int num_kcontrols)
+{
+	struct snd_kcontrol_new *kc;
+	struct snd_soc_tplg_enum_control *ec;
+	struct soc_enum *se;
+	int i, j, err;
+
+	kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
+	if (kc == NULL)
+		return NULL;
+
+	for (i = 0; i < num_kcontrols; i++) {
+		ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
+		/* validate kcontrol */
+		if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			    SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			goto err;
+
+		se = kzalloc(sizeof(*se), GFP_KERNEL);
+		if (se == NULL)
+			goto err;
+
+		dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
+			ec->hdr.name);
+
+		kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
+		if (kc[i].name == NULL) {
+			kfree(se);
+			goto err_se;
+		}
+		kc[i].private_value = (long)se;
+		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc[i].access = ec->hdr.access;
+
+		/* we only support FL/FR channel mapping atm */
+		se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
+		se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
+						  SNDRV_CHMAP_FL);
+		se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
+						  SNDRV_CHMAP_FR);
+
+		se->items = ec->items;
+		se->mask = ec->mask;
+		se->dobj.index = tplg->index;
+
+		switch (ec->hdr.ops.info) {
+		case SND_SOC_TPLG_CTL_ENUM_VALUE:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+			err = soc_tplg_denum_create_values(se, ec);
+			if (err < 0) {
+				dev_err(tplg->dev, "ASoC: could not create values for %s\n",
+					ec->hdr.name);
+				goto err_se;
+			}
+			/* fall through to create texts */
+		case SND_SOC_TPLG_CTL_ENUM:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+			err = soc_tplg_denum_create_texts(se, ec);
+			if (err < 0) {
+				dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
+					ec->hdr.name);
+				goto err_se;
+			}
+			break;
+		default:
+			dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
+				ec->hdr.ops.info, ec->hdr.name);
+			goto err_se;
+		}
+
+		/* map io handlers */
+		err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
+		if (err) {
+			soc_control_err(tplg, &ec->hdr, ec->hdr.name);
+			goto err_se;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc[i],
+			(struct snd_soc_tplg_ctl_hdr *)ec);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				ec->hdr.name);
+			goto err_se;
+		}
+
+		tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
+				ec->priv.size);
+	}
+
+	return kc;
+
+err_se:
+	for (; i >= 0; i--) {
+		/* free values and texts */
+		se = (struct soc_enum *)kc[i].private_value;
+		if (!se)
+			continue;
+
+		kfree(se->dobj.control.dvalues);
+		for (j = 0; j < ec->items; j++)
+			kfree(se->dobj.control.dtexts[j]);
+
+		kfree(se);
+		kfree(kc[i].name);
+	}
+err:
+	kfree(kc);
+
+	return NULL;
+}
+
+static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
+	struct soc_tplg *tplg, int count)
+{
+	struct snd_soc_tplg_bytes_control *be;
+	struct soc_bytes_ext  *sbe;
+	struct snd_kcontrol_new *kc;
+	int i, err;
+
+	kc = kcalloc(count, sizeof(*kc), GFP_KERNEL);
+	if (!kc)
+		return NULL;
+
+	for (i = 0; i < count; i++) {
+		be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
+
+		/* validate kcontrol */
+		if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+			goto err;
+
+		sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
+		if (sbe == NULL)
+			goto err;
+
+		tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
+			be->priv.size);
+
+		dev_dbg(tplg->dev,
+			"ASoC: adding bytes kcontrol %s with access 0x%x\n",
+			be->hdr.name, be->hdr.access);
+
+		kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
+		if (kc[i].name == NULL) {
+			kfree(sbe);
+			goto err;
+		}
+		kc[i].private_value = (long)sbe;
+		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		kc[i].access = be->hdr.access;
+
+		sbe->max = be->max;
+		INIT_LIST_HEAD(&sbe->dobj.list);
+
+		/* map standard io handlers and check for external handlers */
+		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
+		if (err) {
+			soc_control_err(tplg, &be->hdr, be->hdr.name);
+			kfree(sbe);
+			continue;
+		}
+
+		/* pass control to driver for optional further init */
+		err = soc_tplg_init_kcontrol(tplg, &kc[i],
+			(struct snd_soc_tplg_ctl_hdr *)be);
+		if (err < 0) {
+			dev_err(tplg->dev, "ASoC: failed to init %s\n",
+				be->hdr.name);
+			kfree(sbe);
+			continue;
+		}
+	}
+
+	return kc;
+
+err:
+	for (--i; i >= 0; i--) {
+		kfree((void *)kc[i].private_value);
+		kfree(kc[i].name);
+	}
+
+	kfree(kc);
+	return NULL;
+}
+
+static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
+	struct snd_soc_tplg_dapm_widget *w)
+{
+	struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
+	struct snd_soc_dapm_widget template, *widget;
+	struct snd_soc_tplg_ctl_hdr *control_hdr;
+	struct snd_soc_card *card = tplg->comp->card;
+	unsigned int kcontrol_type;
+	int ret = 0;
+
+	if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+		SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+		return -EINVAL;
+	if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
+		SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+		return -EINVAL;
+
+	dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
+		w->name, w->id);
+
+	memset(&template, 0, sizeof(template));
+
+	/* map user to kernel widget ID */
+	template.id = get_widget_id(w->id);
+	if (template.id < 0)
+		return template.id;
+
+	/* strings are allocated here, but used and freed by the widget */
+	template.name = kstrdup(w->name, GFP_KERNEL);
+	if (!template.name)
+		return -ENOMEM;
+	template.sname = kstrdup(w->sname, GFP_KERNEL);
+	if (!template.sname) {
+		ret = -ENOMEM;
+		goto err;
+	}
+	template.reg = w->reg;
+	template.shift = w->shift;
+	template.mask = w->mask;
+	template.subseq = w->subseq;
+	template.on_val = w->invert ? 0 : 1;
+	template.off_val = w->invert ? 1 : 0;
+	template.ignore_suspend = w->ignore_suspend;
+	template.event_flags = w->event_flags;
+	template.dobj.index = tplg->index;
+
+	tplg->pos +=
+		(sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size);
+	if (w->num_kcontrols == 0) {
+		kcontrol_type = 0;
+		template.num_kcontrols = 0;
+		goto widget;
+	}
+
+	control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
+	dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
+		w->name, w->num_kcontrols, control_hdr->type);
+
+	switch (control_hdr->ops.info) {
+	case SND_SOC_TPLG_CTL_VOLSW:
+	case SND_SOC_TPLG_CTL_STROBE:
+	case SND_SOC_TPLG_CTL_VOLSW_SX:
+	case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
+	case SND_SOC_TPLG_CTL_RANGE:
+	case SND_SOC_TPLG_DAPM_CTL_VOLSW:
+		kcontrol_type = SND_SOC_TPLG_TYPE_MIXER;  /* volume mixer */
+		template.num_kcontrols = w->num_kcontrols;
+		template.kcontrol_news =
+			soc_tplg_dapm_widget_dmixer_create(tplg,
+			template.num_kcontrols);
+		if (!template.kcontrol_news) {
+			ret = -ENOMEM;
+			goto hdr_err;
+		}
+		break;
+	case SND_SOC_TPLG_CTL_ENUM:
+	case SND_SOC_TPLG_CTL_ENUM_VALUE:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
+	case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
+		kcontrol_type = SND_SOC_TPLG_TYPE_ENUM;	/* enumerated mixer */
+		template.num_kcontrols = w->num_kcontrols;
+		template.kcontrol_news =
+			soc_tplg_dapm_widget_denum_create(tplg,
+			template.num_kcontrols);
+		if (!template.kcontrol_news) {
+			ret = -ENOMEM;
+			goto hdr_err;
+		}
+		break;
+	case SND_SOC_TPLG_CTL_BYTES:
+		kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
+		template.num_kcontrols = w->num_kcontrols;
+		template.kcontrol_news =
+			soc_tplg_dapm_widget_dbytes_create(tplg,
+				template.num_kcontrols);
+		if (!template.kcontrol_news) {
+			ret = -ENOMEM;
+			goto hdr_err;
+		}
+		break;
+	default:
+		dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
+			control_hdr->ops.get, control_hdr->ops.put,
+			control_hdr->ops.info);
+		ret = -EINVAL;
+		goto hdr_err;
+	}
+
+widget:
+	ret = soc_tplg_widget_load(tplg, &template, w);
+	if (ret < 0)
+		goto hdr_err;
+
+	/* card dapm mutex is held by the core if we are loading topology
+	 * data during sound card init. */
+	if (card->instantiated)
+		widget = snd_soc_dapm_new_control(dapm, &template);
+	else
+		widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
+	if (IS_ERR(widget)) {
+		ret = PTR_ERR(widget);
+		/* Do not nag about probe deferrals */
+		if (ret != -EPROBE_DEFER)
+			dev_err(tplg->dev,
+				"ASoC: failed to create widget %s controls (%d)\n",
+				w->name, ret);
+		goto hdr_err;
+	}
+	if (widget == NULL) {
+		dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n",
+			w->name);
+		ret = -ENOMEM;
+		goto hdr_err;
+	}
+
+	widget->dobj.type = SND_SOC_DOBJ_WIDGET;
+	widget->dobj.widget.kcontrol_type = kcontrol_type;
+	widget->dobj.ops = tplg->ops;
+	widget->dobj.index = tplg->index;
+	list_add(&widget->dobj.list, &tplg->comp->dobj_list);
+
+	ret = soc_tplg_widget_ready(tplg, widget, w);
+	if (ret < 0)
+		goto ready_err;
+
+	return 0;
+
+ready_err:
+	snd_soc_tplg_widget_remove(widget);
+	snd_soc_dapm_free_widget(widget);
+hdr_err:
+	kfree(template.sname);
+err:
+	kfree(template.name);
+	return ret;
+}
+
+static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_dapm_widget *widget;
+	int ret, count = hdr->count, i;
+
+	if (tplg->pass != SOC_TPLG_PASS_WIDGET)
+		return 0;
+
+	dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
+
+	for (i = 0; i < count; i++) {
+		widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
+		if (widget->size != sizeof(*widget)) {
+			dev_err(tplg->dev, "ASoC: invalid widget size\n");
+			return -EINVAL;
+		}
+
+		ret = soc_tplg_dapm_widget_create(tplg, widget);
+		if (ret < 0) {
+			dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
+				widget->name);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
+{
+	struct snd_soc_card *card = tplg->comp->card;
+	int ret;
+
+	/* Card might not have been registered at this point.
+	 * If so, just return success.
+	*/
+	if (!card || !card->instantiated) {
+		dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
+			" widget card binding deferred\n");
+		return 0;
+	}
+
+	ret = snd_soc_dapm_new_widgets(card);
+	if (ret < 0)
+		dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
+			ret);
+
+	return 0;
+}
+
+static void set_stream_info(struct snd_soc_pcm_stream *stream,
+	struct snd_soc_tplg_stream_caps *caps)
+{
+	stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
+	stream->channels_min = caps->channels_min;
+	stream->channels_max = caps->channels_max;
+	stream->rates = caps->rates;
+	stream->rate_min = caps->rate_min;
+	stream->rate_max = caps->rate_max;
+	stream->formats = caps->formats;
+	stream->sig_bits = caps->sig_bits;
+}
+
+static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
+			  unsigned int flag_mask, unsigned int flags)
+{
+	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
+		dai_drv->symmetric_rates =
+			flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
+		dai_drv->symmetric_channels =
+			flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
+			1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
+		dai_drv->symmetric_samplebits =
+			flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
+			1 : 0;
+}
+
+static int soc_tplg_dai_create(struct soc_tplg *tplg,
+	struct snd_soc_tplg_pcm *pcm)
+{
+	struct snd_soc_dai_driver *dai_drv;
+	struct snd_soc_pcm_stream *stream;
+	struct snd_soc_tplg_stream_caps *caps;
+	int ret;
+
+	dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
+	if (dai_drv == NULL)
+		return -ENOMEM;
+
+	if (strlen(pcm->dai_name))
+		dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
+	dai_drv->id = pcm->dai_id;
+
+	if (pcm->playback) {
+		stream = &dai_drv->playback;
+		caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
+		set_stream_info(stream, caps);
+	}
+
+	if (pcm->capture) {
+		stream = &dai_drv->capture;
+		caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
+		set_stream_info(stream, caps);
+	}
+
+	if (pcm->compress)
+		dai_drv->compress_new = snd_soc_new_compress;
+
+	/* pass control to component driver for optional further init */
+	ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
+	if (ret < 0) {
+		dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
+		kfree(dai_drv);
+		return ret;
+	}
+
+	dai_drv->dobj.index = tplg->index;
+	dai_drv->dobj.ops = tplg->ops;
+	dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
+	list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
+
+	/* register the DAI to the component */
+	return snd_soc_register_dai(tplg->comp, dai_drv);
+}
+
+static void set_link_flags(struct snd_soc_dai_link *link,
+		unsigned int flag_mask, unsigned int flags)
+{
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
+		link->symmetric_rates =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
+		link->symmetric_channels =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
+			1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
+		link->symmetric_samplebits =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
+			1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
+		link->ignore_suspend =
+		flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
+		1 : 0;
+}
+
+/* create the FE DAI link */
+static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
+	struct snd_soc_tplg_pcm *pcm)
+{
+	struct snd_soc_dai_link *link;
+	int ret;
+
+	link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+	if (link == NULL)
+		return -ENOMEM;
+
+	if (strlen(pcm->pcm_name)) {
+		link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
+		link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
+	}
+	link->id = pcm->pcm_id;
+
+	if (strlen(pcm->dai_name))
+		link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
+
+	link->codec_name = "snd-soc-dummy";
+	link->codec_dai_name = "snd-soc-dummy-dai";
+
+	/* enable DPCM */
+	link->dynamic = 1;
+	link->dpcm_playback = pcm->playback;
+	link->dpcm_capture = pcm->capture;
+	if (pcm->flag_mask)
+		set_link_flags(link, pcm->flag_mask, pcm->flags);
+
+	/* pass control to component driver for optional further init */
+	ret = soc_tplg_dai_link_load(tplg, link, NULL);
+	if (ret < 0) {
+		dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
+		kfree(link);
+		return ret;
+	}
+
+	link->dobj.index = tplg->index;
+	link->dobj.ops = tplg->ops;
+	link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
+	list_add(&link->dobj.list, &tplg->comp->dobj_list);
+
+	snd_soc_add_dai_link(tplg->comp->card, link);
+	return 0;
+}
+
+/* create a FE DAI and DAI link from the PCM object */
+static int soc_tplg_pcm_create(struct soc_tplg *tplg,
+	struct snd_soc_tplg_pcm *pcm)
+{
+	int ret;
+
+	ret = soc_tplg_dai_create(tplg, pcm);
+	if (ret < 0)
+		return ret;
+
+	return  soc_tplg_fe_link_create(tplg, pcm);
+}
+
+/* copy stream caps from the old version 4 of source */
+static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
+				struct snd_soc_tplg_stream_caps_v4 *src)
+{
+	dest->size = sizeof(*dest);
+	memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+	dest->formats = src->formats;
+	dest->rates = src->rates;
+	dest->rate_min = src->rate_min;
+	dest->rate_max = src->rate_max;
+	dest->channels_min = src->channels_min;
+	dest->channels_max = src->channels_max;
+	dest->periods_min = src->periods_min;
+	dest->periods_max = src->periods_max;
+	dest->period_size_min = src->period_size_min;
+	dest->period_size_max = src->period_size_max;
+	dest->buffer_size_min = src->buffer_size_min;
+	dest->buffer_size_max = src->buffer_size_max;
+}
+
+/**
+ * pcm_new_ver - Create the new version of PCM from the old version.
+ * @tplg: topology context
+ * @src: older version of pcm as a source
+ * @pcm: latest version of pcm created from the source
+ *
+ * Support from vesion 4. User should free the returned pcm manually.
+ */
+static int pcm_new_ver(struct soc_tplg *tplg,
+		       struct snd_soc_tplg_pcm *src,
+		       struct snd_soc_tplg_pcm **pcm)
+{
+	struct snd_soc_tplg_pcm *dest;
+	struct snd_soc_tplg_pcm_v4 *src_v4;
+	int i;
+
+	*pcm = NULL;
+
+	if (src->size != sizeof(*src_v4)) {
+		dev_err(tplg->dev, "ASoC: invalid PCM size\n");
+		return -EINVAL;
+	}
+
+	dev_warn(tplg->dev, "ASoC: old version of PCM\n");
+	src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
+	dest = kzalloc(sizeof(*dest), GFP_KERNEL);
+	if (!dest)
+		return -ENOMEM;
+
+	dest->size = sizeof(*dest);	/* size of latest abi version */
+	memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+	memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+	dest->pcm_id = src_v4->pcm_id;
+	dest->dai_id = src_v4->dai_id;
+	dest->playback = src_v4->playback;
+	dest->capture = src_v4->capture;
+	dest->compress = src_v4->compress;
+	dest->num_streams = src_v4->num_streams;
+	for (i = 0; i < dest->num_streams; i++)
+		memcpy(&dest->stream[i], &src_v4->stream[i],
+		       sizeof(struct snd_soc_tplg_stream));
+
+	for (i = 0; i < 2; i++)
+		stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
+
+	*pcm = dest;
+	return 0;
+}
+
+static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_pcm *pcm, *_pcm;
+	int count = hdr->count;
+	int i;
+	bool abi_match;
+	int ret;
+
+	if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
+		return 0;
+
+	/* check the element size and count */
+	pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
+	if (pcm->size > sizeof(struct snd_soc_tplg_pcm)
+		|| pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) {
+		dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
+			pcm->size);
+		return -EINVAL;
+	}
+
+	if (soc_tplg_check_elem_count(tplg,
+		pcm->size, count,
+		hdr->payload_size, "PCM DAI")) {
+		dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
+			count);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < count; i++) {
+		pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
+
+		/* check ABI version by size, create a new version of pcm
+		 * if abi not match.
+		 */
+		if (pcm->size == sizeof(*pcm)) {
+			abi_match = true;
+			_pcm = pcm;
+		} else {
+			abi_match = false;
+			ret = pcm_new_ver(tplg, pcm, &_pcm);
+			if (ret < 0)
+				return ret;
+		}
+
+		/* create the FE DAIs and DAI links */
+		ret = soc_tplg_pcm_create(tplg, _pcm);
+		if (ret < 0) {
+			if (!abi_match)
+				kfree(_pcm);
+			return ret;
+		}
+
+		/* offset by version-specific struct size and
+		 * real priv data size
+		 */
+		tplg->pos += pcm->size + _pcm->priv.size;
+
+		if (!abi_match)
+			kfree(_pcm); /* free the duplicated one */
+	}
+
+	dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
+
+	return 0;
+}
+
+/**
+ * set_link_hw_format - Set the HW audio format of the physical DAI link.
+ * @link: &snd_soc_dai_link which should be updated
+ * @cfg: physical link configs.
+ *
+ * Topology context contains a list of supported HW formats (configs) and
+ * a default format ID for the physical link. This function will use this
+ * default ID to choose the HW format to set the link's DAI format for init.
+ */
+static void set_link_hw_format(struct snd_soc_dai_link *link,
+			struct snd_soc_tplg_link_config *cfg)
+{
+	struct snd_soc_tplg_hw_config *hw_config;
+	unsigned char bclk_master, fsync_master;
+	unsigned char invert_bclk, invert_fsync;
+	int i;
+
+	for (i = 0; i < cfg->num_hw_configs; i++) {
+		hw_config = &cfg->hw_config[i];
+		if (hw_config->id != cfg->default_hw_config_id)
+			continue;
+
+		link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+		/* clock gating */
+		switch (hw_config->clock_gated) {
+		case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
+			link->dai_fmt |= SND_SOC_DAIFMT_GATED;
+			break;
+
+		case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
+			link->dai_fmt |= SND_SOC_DAIFMT_CONT;
+			break;
+
+		default:
+			/* ignore the value */
+			break;
+		}
+
+		/* clock signal polarity */
+		invert_bclk = hw_config->invert_bclk;
+		invert_fsync = hw_config->invert_fsync;
+		if (!invert_bclk && !invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
+		else if (!invert_bclk && invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
+		else if (invert_bclk && !invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
+		else
+			link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
+
+		/* clock masters */
+		bclk_master = (hw_config->bclk_master ==
+			       SND_SOC_TPLG_BCLK_CM);
+		fsync_master = (hw_config->fsync_master ==
+				SND_SOC_TPLG_FSYNC_CM);
+		if (bclk_master && fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
+		else if (!bclk_master && fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+		else if (bclk_master && !fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
+		else
+			link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+	}
+}
+
+/**
+ * link_new_ver - Create a new physical link config from the old
+ * version of source.
+ * @tplg: topology context
+ * @src: old version of phyical link config as a source
+ * @link: latest version of physical link config created from the source
+ *
+ * Support from vesion 4. User need free the returned link config manually.
+ */
+static int link_new_ver(struct soc_tplg *tplg,
+			struct snd_soc_tplg_link_config *src,
+			struct snd_soc_tplg_link_config **link)
+{
+	struct snd_soc_tplg_link_config *dest;
+	struct snd_soc_tplg_link_config_v4 *src_v4;
+	int i;
+
+	*link = NULL;
+
+	if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) {
+		dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
+		return -EINVAL;
+	}
+
+	dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
+
+	src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
+	dest = kzalloc(sizeof(*dest), GFP_KERNEL);
+	if (!dest)
+		return -ENOMEM;
+
+	dest->size = sizeof(*dest);
+	dest->id = src_v4->id;
+	dest->num_streams = src_v4->num_streams;
+	for (i = 0; i < dest->num_streams; i++)
+		memcpy(&dest->stream[i], &src_v4->stream[i],
+		       sizeof(struct snd_soc_tplg_stream));
+
+	*link = dest;
+	return 0;
+}
+
+/* Find and configure an existing physical DAI link */
+static int soc_tplg_link_config(struct soc_tplg *tplg,
+	struct snd_soc_tplg_link_config *cfg)
+{
+	struct snd_soc_dai_link *link;
+	const char *name, *stream_name;
+	size_t len;
+	int ret;
+
+	len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+	if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+		return -EINVAL;
+	else if (len)
+		name = cfg->name;
+	else
+		name = NULL;
+
+	len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+	if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
+		return -EINVAL;
+	else if (len)
+		stream_name = cfg->stream_name;
+	else
+		stream_name = NULL;
+
+	link = snd_soc_find_dai_link(tplg->comp->card, cfg->id,
+				     name, stream_name);
+	if (!link) {
+		dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
+			name, cfg->id);
+		return -EINVAL;
+	}
+
+	/* hw format */
+	if (cfg->num_hw_configs)
+		set_link_hw_format(link, cfg);
+
+	/* flags */
+	if (cfg->flag_mask)
+		set_link_flags(link, cfg->flag_mask, cfg->flags);
+
+	/* pass control to component driver for optional further init */
+	ret = soc_tplg_dai_link_load(tplg, link, cfg);
+	if (ret < 0) {
+		dev_err(tplg->dev, "ASoC: physical link loading failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+
+/* Load physical link config elements from the topology context */
+static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_link_config *link, *_link;
+	int count = hdr->count;
+	int i, ret;
+	bool abi_match;
+
+	if (tplg->pass != SOC_TPLG_PASS_LINK) {
+		tplg->pos += hdr->size + hdr->payload_size;
+		return 0;
+	};
+
+	/* check the element size and count */
+	link = (struct snd_soc_tplg_link_config *)tplg->pos;
+	if (link->size > sizeof(struct snd_soc_tplg_link_config)
+		|| link->size < sizeof(struct snd_soc_tplg_link_config_v4)) {
+		dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
+			link->size);
+		return -EINVAL;
+	}
+
+	if (soc_tplg_check_elem_count(tplg,
+		link->size, count,
+		hdr->payload_size, "physical link config")) {
+		dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
+			count);
+		return -EINVAL;
+	}
+
+	/* config physical DAI links */
+	for (i = 0; i < count; i++) {
+		link = (struct snd_soc_tplg_link_config *)tplg->pos;
+		if (link->size == sizeof(*link)) {
+			abi_match = true;
+			_link = link;
+		} else {
+			abi_match = false;
+			ret = link_new_ver(tplg, link, &_link);
+			if (ret < 0)
+				return ret;
+		}
+
+		ret = soc_tplg_link_config(tplg, _link);
+		if (ret < 0) {
+			if (!abi_match)
+				kfree(_link);
+			return ret;
+		}
+
+		/* offset by version-specific struct size and
+		 * real priv data size
+		 */
+		tplg->pos += link->size + _link->priv.size;
+
+		if (!abi_match)
+			kfree(_link); /* free the duplicated one */
+	}
+
+	return 0;
+}
+
+/**
+ * soc_tplg_dai_config - Find and configure an existing physical DAI.
+ * @tplg: topology context
+ * @d: physical DAI configs.
+ *
+ * The physical dai should already be registered by the platform driver.
+ * The platform driver should specify the DAI name and ID for matching.
+ */
+static int soc_tplg_dai_config(struct soc_tplg *tplg,
+			       struct snd_soc_tplg_dai *d)
+{
+	struct snd_soc_dai_link_component dai_component = {0};
+	struct snd_soc_dai *dai;
+	struct snd_soc_dai_driver *dai_drv;
+	struct snd_soc_pcm_stream *stream;
+	struct snd_soc_tplg_stream_caps *caps;
+	int ret;
+
+	dai_component.dai_name = d->dai_name;
+	dai = snd_soc_find_dai(&dai_component);
+	if (!dai) {
+		dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
+			d->dai_name);
+		return -EINVAL;
+	}
+
+	if (d->dai_id != dai->id) {
+		dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
+			d->dai_name);
+		return -EINVAL;
+	}
+
+	dai_drv = dai->driver;
+	if (!dai_drv)
+		return -EINVAL;
+
+	if (d->playback) {
+		stream = &dai_drv->playback;
+		caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
+		set_stream_info(stream, caps);
+	}
+
+	if (d->capture) {
+		stream = &dai_drv->capture;
+		caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
+		set_stream_info(stream, caps);
+	}
+
+	if (d->flag_mask)
+		set_dai_flags(dai_drv, d->flag_mask, d->flags);
+
+	/* pass control to component driver for optional further init */
+	ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
+	if (ret < 0) {
+		dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/* load physical DAI elements */
+static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
+				   struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_dai *dai;
+	int count = hdr->count;
+	int i;
+
+	if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
+		return 0;
+
+	/* config the existing BE DAIs */
+	for (i = 0; i < count; i++) {
+		dai = (struct snd_soc_tplg_dai *)tplg->pos;
+		if (dai->size != sizeof(*dai)) {
+			dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
+			return -EINVAL;
+		}
+
+		soc_tplg_dai_config(tplg, dai);
+		tplg->pos += (sizeof(*dai) + dai->priv.size);
+	}
+
+	dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
+	return 0;
+}
+
+/**
+ * manifest_new_ver - Create a new version of manifest from the old version
+ * of source.
+ * @tplg: topology context
+ * @src: old version of manifest as a source
+ * @manifest: latest version of manifest created from the source
+ *
+ * Support from vesion 4. Users need free the returned manifest manually.
+ */
+static int manifest_new_ver(struct soc_tplg *tplg,
+			    struct snd_soc_tplg_manifest *src,
+			    struct snd_soc_tplg_manifest **manifest)
+{
+	struct snd_soc_tplg_manifest *dest;
+	struct snd_soc_tplg_manifest_v4 *src_v4;
+
+	*manifest = NULL;
+
+	if (src->size != sizeof(*src_v4)) {
+		dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
+			 src->size);
+		if (src->size)
+			return -EINVAL;
+		src->size = sizeof(*src_v4);
+	}
+
+	dev_warn(tplg->dev, "ASoC: old version of manifest\n");
+
+	src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
+	dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL);
+	if (!dest)
+		return -ENOMEM;
+
+	dest->size = sizeof(*dest);	/* size of latest abi version */
+	dest->control_elems = src_v4->control_elems;
+	dest->widget_elems = src_v4->widget_elems;
+	dest->graph_elems = src_v4->graph_elems;
+	dest->pcm_elems = src_v4->pcm_elems;
+	dest->dai_link_elems = src_v4->dai_link_elems;
+	dest->priv.size = src_v4->priv.size;
+	if (dest->priv.size)
+		memcpy(dest->priv.data, src_v4->priv.data,
+		       src_v4->priv.size);
+
+	*manifest = dest;
+	return 0;
+}
+
+static int soc_tplg_manifest_load(struct soc_tplg *tplg,
+				  struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_manifest *manifest, *_manifest;
+	bool abi_match;
+	int ret = 0;
+
+	if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
+		return 0;
+
+	manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
+
+	/* check ABI version by size, create a new manifest if abi not match */
+	if (manifest->size == sizeof(*manifest)) {
+		abi_match = true;
+		_manifest = manifest;
+	} else {
+		abi_match = false;
+		ret = manifest_new_ver(tplg, manifest, &_manifest);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* pass control to component driver for optional further init */
+	if (tplg->comp && tplg->ops && tplg->ops->manifest)
+		ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
+
+	if (!abi_match)	/* free the duplicated one */
+		kfree(_manifest);
+
+	return ret;
+}
+
+/* validate header magic, size and type */
+static int soc_valid_header(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
+		return 0;
+
+	if (hdr->size != sizeof(*hdr)) {
+		dev_err(tplg->dev,
+			"ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
+			hdr->type, soc_tplg_get_hdr_offset(tplg),
+			tplg->fw->size);
+		return -EINVAL;
+	}
+
+	/* big endian firmware objects not supported atm */
+	if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) {
+		dev_err(tplg->dev,
+			"ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
+			tplg->pass, hdr->magic,
+			soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
+		return -EINVAL;
+	}
+
+	if (hdr->magic != SND_SOC_TPLG_MAGIC) {
+		dev_err(tplg->dev,
+			"ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
+			tplg->pass, hdr->magic,
+			soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
+		return -EINVAL;
+	}
+
+	/* Support ABI from version 4 */
+	if (hdr->abi > SND_SOC_TPLG_ABI_VERSION
+		|| hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) {
+		dev_err(tplg->dev,
+			"ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
+			tplg->pass, hdr->abi,
+			SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
+			tplg->fw->size);
+		return -EINVAL;
+	}
+
+	if (hdr->payload_size == 0) {
+		dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
+			soc_tplg_get_hdr_offset(tplg));
+		return -EINVAL;
+	}
+
+	if (tplg->pass == hdr->type)
+		dev_dbg(tplg->dev,
+			"ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
+			hdr->payload_size, hdr->type, hdr->version,
+			hdr->vendor_type, tplg->pass);
+
+	return 1;
+}
+
+/* check header type and call appropriate handler */
+static int soc_tplg_load_header(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
+
+	/* check for matching ID */
+	if (hdr->index != tplg->req_index &&
+		tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
+		return 0;
+
+	tplg->index = hdr->index;
+
+	switch (hdr->type) {
+	case SND_SOC_TPLG_TYPE_MIXER:
+	case SND_SOC_TPLG_TYPE_ENUM:
+	case SND_SOC_TPLG_TYPE_BYTES:
+		return soc_tplg_kcontrol_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
+		return soc_tplg_dapm_graph_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
+		return soc_tplg_dapm_widget_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_PCM:
+		return soc_tplg_pcm_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_DAI:
+		return soc_tplg_dai_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_DAI_LINK:
+	case SND_SOC_TPLG_TYPE_BACKEND_LINK:
+		/* physical link configurations */
+		return soc_tplg_link_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_MANIFEST:
+		return soc_tplg_manifest_load(tplg, hdr);
+	default:
+		/* bespoke vendor data object */
+		return soc_tplg_vendor_load(tplg, hdr);
+	}
+
+	return 0;
+}
+
+/* process the topology file headers */
+static int soc_tplg_process_headers(struct soc_tplg *tplg)
+{
+	struct snd_soc_tplg_hdr *hdr;
+	int ret;
+
+	tplg->pass = SOC_TPLG_PASS_START;
+
+	/* process the header types from start to end */
+	while (tplg->pass <= SOC_TPLG_PASS_END) {
+
+		tplg->hdr_pos = tplg->fw->data;
+		hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
+
+		while (!soc_tplg_is_eof(tplg)) {
+
+			/* make sure header is valid before loading */
+			ret = soc_valid_header(tplg, hdr);
+			if (ret < 0)
+				return ret;
+			else if (ret == 0)
+				break;
+
+			/* load the header object */
+			ret = soc_tplg_load_header(tplg, hdr);
+			if (ret < 0)
+				return ret;
+
+			/* goto next header */
+			tplg->hdr_pos += hdr->payload_size +
+				sizeof(struct snd_soc_tplg_hdr);
+			hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
+		}
+
+		/* next data type pass */
+		tplg->pass++;
+	}
+
+	/* signal DAPM we are complete */
+	ret = soc_tplg_dapm_complete(tplg);
+	if (ret < 0)
+		dev_err(tplg->dev,
+			"ASoC: failed to initialise DAPM from Firmware\n");
+
+	return ret;
+}
+
+static int soc_tplg_load(struct soc_tplg *tplg)
+{
+	int ret;
+
+	ret = soc_tplg_process_headers(tplg);
+	if (ret == 0)
+		soc_tplg_complete(tplg);
+
+	return ret;
+}
+
+/* load audio component topology from "firmware" file */
+int snd_soc_tplg_component_load(struct snd_soc_component *comp,
+	struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
+{
+	struct soc_tplg tplg;
+	int ret;
+
+	/* setup parsing context */
+	memset(&tplg, 0, sizeof(tplg));
+	tplg.fw = fw;
+	tplg.dev = comp->dev;
+	tplg.comp = comp;
+	tplg.ops = ops;
+	tplg.req_index = id;
+	tplg.io_ops = ops->io_ops;
+	tplg.io_ops_count = ops->io_ops_count;
+	tplg.bytes_ext_ops = ops->bytes_ext_ops;
+	tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
+
+	ret = soc_tplg_load(&tplg);
+	/* free the created components if fail to load topology */
+	if (ret)
+		snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
+
+/* remove this dynamic widget */
+void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
+{
+	/* make sure we are a widget */
+	if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
+		return;
+
+	remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
+
+/* remove all dynamic widgets from this DAPM context */
+void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
+	u32 index)
+{
+	struct snd_soc_dapm_widget *w, *next_w;
+
+	list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
+
+		/* make sure we are a widget with correct context */
+		if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
+			continue;
+
+		/* match ID */
+		if (w->dobj.index != index &&
+			w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
+			continue;
+		/* check and free and dynamic widget kcontrols */
+		snd_soc_tplg_widget_remove(w);
+		snd_soc_dapm_free_widget(w);
+	}
+	snd_soc_dapm_reset_cache(dapm);
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
+
+/* remove dynamic controls from the component driver */
+int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
+{
+	struct snd_card *card = comp->card->snd_card;
+	struct snd_soc_dobj *dobj, *next_dobj;
+	int pass = SOC_TPLG_PASS_END;
+
+	/* process the header types from end to start */
+	while (pass >= SOC_TPLG_PASS_START) {
+
+		/* remove mixer controls */
+		down_write(&card->controls_rwsem);
+		list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
+			list) {
+
+			/* match index */
+			if (dobj->index != index &&
+				index != SND_SOC_TPLG_INDEX_ALL)
+				continue;
+
+			switch (dobj->type) {
+			case SND_SOC_DOBJ_MIXER:
+				remove_mixer(comp, dobj, pass);
+				break;
+			case SND_SOC_DOBJ_ENUM:
+				remove_enum(comp, dobj, pass);
+				break;
+			case SND_SOC_DOBJ_BYTES:
+				remove_bytes(comp, dobj, pass);
+				break;
+			case SND_SOC_DOBJ_WIDGET:
+				remove_widget(comp, dobj, pass);
+				break;
+			case SND_SOC_DOBJ_PCM:
+				remove_dai(comp, dobj, pass);
+				break;
+			case SND_SOC_DOBJ_DAI_LINK:
+				remove_link(comp, dobj, pass);
+				break;
+			default:
+				dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
+					dobj->type);
+				break;
+			}
+		}
+		up_write(&card->controls_rwsem);
+		pass--;
+	}
+
+	/* let caller know if FW can be freed when no objects are left */
+	return !list_empty(&comp->dobj_list);
+}
+EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);