Merge branch 'topic/hda-core-intel' into for-next

Merge the development branch for HD-audio ext bus refactoring.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

15 files changed, 605 insertions, 674 deletions

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 294a5a21937b..21abc4da2549 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -215,6 +215,11 @@ struct hdac_driver {
 	const struct hda_device_id *id_table;
 	int (*match)(struct hdac_device *dev, struct hdac_driver *drv);
 	void (*unsol_event)(struct hdac_device *dev, unsigned int event);
+
+	/* fields used by ext bus APIs */
+	int (*probe)(struct hdac_device *dev);
+	int (*remove)(struct hdac_device *dev);
+	void (*shutdown)(struct hdac_device *dev);
 };
 
 #define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver)
@@ -236,6 +241,14 @@ struct hdac_bus_ops {
 };
 
 /*
+ * ops used for ASoC HDA codec drivers
+ */
+struct hdac_ext_bus_ops {
+	int (*hdev_attach)(struct hdac_device *hdev);
+	int (*hdev_detach)(struct hdac_device *hdev);
+};
+
+/*
  * Lowlevel I/O operators
  */
 struct hdac_io_ops {
@@ -277,11 +290,17 @@ struct hdac_rb {
  * @mlcap: MultiLink capabilities pointer
  * @gtscap: gts capabilities pointer
  * @drsmcap: dma resume capabilities pointer
+ * @num_streams: streams supported
+ * @idx: HDA link index
+ * @hlink_list: link list of HDA links
+ * @lock: lock for link mgmt
+ * @cmd_dma_state: state of cmd DMAs: CORB and RIRB
  */
 struct hdac_bus {
 	struct device *dev;
 	const struct hdac_bus_ops *ops;
 	const struct hdac_io_ops *io_ops;
+	const struct hdac_ext_bus_ops *ext_ops;
 
 	/* h/w resources */
 	unsigned long addr;
@@ -344,6 +363,16 @@ struct hdac_bus {
 	/* i915 component interface */
 	struct i915_audio_component *audio_component;
 	int i915_power_refcount;
+
+	/* parameters required for enhanced capabilities */
+	int num_streams;
+	int idx;
+
+	struct list_head hlink_list;
+
+	struct mutex lock;
+	bool cmd_dma_state;
+
 };
 
 int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
index 9c14e21dda85..f34aced69ca8 100644
--- a/include/sound/hdaudio_ext.h
+++ b/include/sound/hdaudio_ext.h
@@ -4,38 +4,16 @@
 
 #include <sound/hdaudio.h>
 
-/**
- * hdac_ext_bus: HDAC extended bus for extended HDA caps
- *
- * @bus: hdac bus
- * @num_streams: streams supported
- * @hlink_list: link list of HDA links
- * @lock: lock for link mgmt
- * @cmd_dma_state: state of cmd DMAs: CORB and RIRB
- */
-struct hdac_ext_bus {
-	struct hdac_bus bus;
-	int num_streams;
-	int idx;
-
-	struct list_head hlink_list;
-
-	struct mutex lock;
-	bool cmd_dma_state;
-};
-
-int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
+int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
 		      const struct hdac_bus_ops *ops,
-		      const struct hdac_io_ops *io_ops);
+		      const struct hdac_io_ops *io_ops,
+		      const struct hdac_ext_bus_ops *ext_ops);
 
-void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
-int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
+void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
+int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
+						struct hdac_device *hdev);
 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
-void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
-
-#define ebus_to_hbus(ebus)	(&(ebus)->bus)
-#define hbus_to_ebus(_bus) \
-	container_of(_bus, struct hdac_ext_bus, bus)
+void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus);
 
 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
 	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
@@ -44,14 +22,14 @@ void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
 	HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
 
-void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
-void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
+void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
+void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
 
-void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
+void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
 				 bool enable, int index);
 
-int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
-struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
+int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
+struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
 						const char *codec_name);
 
 enum hdac_ext_stream_type {
@@ -100,28 +78,28 @@ struct hdac_ext_stream {
 #define stream_to_hdac_ext_stream(s) \
 	container_of(s, struct hdac_ext_stream, hstream)
 
-void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
+void snd_hdac_ext_stream_init(struct hdac_bus *bus,
 				struct hdac_ext_stream *stream, int idx,
 				int direction, int tag);
-int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
+int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
 		int num_stream, int dir);
-void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
-void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
-struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
+void snd_hdac_stream_free_all(struct hdac_bus *bus);
+void snd_hdac_link_free_all(struct hdac_bus *bus);
+struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
 					   struct snd_pcm_substream *substream,
 					   int type);
 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
-void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
+void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
 				struct hdac_ext_stream *azx_dev, bool decouple);
-void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
+void snd_hdac_ext_stop_streams(struct hdac_bus *bus);
 
-int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
 				 struct hdac_ext_stream *stream, u32 value);
-int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
 				 struct hdac_ext_stream *stream);
-void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
+void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
 				bool enable, int index);
-int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
 				struct hdac_ext_stream *stream, u32 value);
 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 
@@ -144,17 +122,15 @@ struct hdac_ext_link {
 
 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
-int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
-int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
+int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
+int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 				 int stream);
 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 				 int stream);
 
-int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
-				struct hdac_ext_link *link);
-int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
-				struct hdac_ext_link *link);
+int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
+int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
 
 /* update register macro */
 #define snd_hdac_updatel(addr, reg, mask, val)		\
@@ -181,53 +157,12 @@ struct hda_dai_map {
 	u32	maxbps;
 };
 
-#define HDA_MAX_NIDS 16
-
-/**
- * struct hdac_ext_device - HDAC Ext device
- *
- * @hdac: hdac core device
- * @nid_list - the dai map which matches the dai-name with the nid
- * @map_cur_idx - the idx in use in dai_map
- * @ops - the hda codec ops common to all codec drivers
- * @pvt_data - private data, for asoc contains asoc codec object
- */
-struct hdac_ext_device {
-	struct hdac_device hdev;
-	struct hdac_ext_bus *ebus;
-
-	/* soc-dai to nid map */
-	struct hda_dai_map nid_list[HDA_MAX_NIDS];
-	unsigned int map_cur_idx;
-
-	/* codec ops */
-	struct hdac_ext_codec_ops ops;
-
-	struct snd_card *card;
-	void *scodec;
-	void *private_data;
-};
-
 struct hdac_ext_dma_params {
 	u32 format;
 	u8 stream_tag;
 };
-#define to_ehdac_device(dev) (container_of((dev), \
-				 struct hdac_ext_device, hdev))
-/*
- * HD-audio codec base driver
- */
-struct hdac_ext_driver {
-	struct hdac_driver hdac;
-
-	int	(*probe)(struct hdac_ext_device *dev);
-	int	(*remove)(struct hdac_ext_device *dev);
-	void	(*shutdown)(struct hdac_ext_device *dev);
-};
-
-int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
-void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 
-#define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
+int snd_hda_ext_driver_register(struct hdac_driver *drv);
+void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
 
 #endif /* __SOUND_HDAUDIO_EXT_H */
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index 0daf31383084..9c37d9af3023 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -87,9 +87,10 @@ static const struct hdac_io_ops hdac_ext_default_io = {
  *
  * Returns 0 if successful, or a negative error code.
  */
-int snd_hdac_ext_bus_init(struct hdac_ext_bus *ebus, struct device *dev,
+int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
 			const struct hdac_bus_ops *ops,
-			const struct hdac_io_ops *io_ops)
+			const struct hdac_io_ops *io_ops,
+			const struct hdac_ext_bus_ops *ext_ops)
 {
 	int ret;
 	static int idx;
@@ -98,15 +99,16 @@ int snd_hdac_ext_bus_init(struct hdac_ext_bus *ebus, struct device *dev,
 	if (io_ops == NULL)
 		io_ops = &hdac_ext_default_io;
 
-	ret = snd_hdac_bus_init(&ebus->bus, dev, ops, io_ops);
+	ret = snd_hdac_bus_init(bus, dev, ops, io_ops);
 	if (ret < 0)
 		return ret;
 
-	INIT_LIST_HEAD(&ebus->hlink_list);
-	ebus->idx = idx++;
+	bus->ext_ops = ext_ops;
+	INIT_LIST_HEAD(&bus->hlink_list);
+	bus->idx = idx++;
 
-	mutex_init(&ebus->lock);
-	ebus->cmd_dma_state = true;
+	mutex_init(&bus->lock);
+	bus->cmd_dma_state = true;
 
 	return 0;
 }
@@ -116,10 +118,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_init);
  * snd_hdac_ext_bus_exit - clean up a HD-audio extended bus
  * @ebus: the pointer to extended bus object
  */
-void snd_hdac_ext_bus_exit(struct hdac_ext_bus *ebus)
+void snd_hdac_ext_bus_exit(struct hdac_bus *bus)
 {
-	snd_hdac_bus_exit(&ebus->bus);
-	WARN_ON(!list_empty(&ebus->hlink_list));
+	snd_hdac_bus_exit(bus);
+	WARN_ON(!list_empty(&bus->hlink_list));
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_exit);
 
@@ -135,21 +137,15 @@ static void default_release(struct device *dev)
  *
  * Returns zero for success or a negative error code.
  */
-int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr)
+int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
+					struct hdac_device *hdev)
 {
-	struct hdac_ext_device *edev;
-	struct hdac_device *hdev = NULL;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 	char name[15];
 	int ret;
 
-	edev = kzalloc(sizeof(*edev), GFP_KERNEL);
-	if (!edev)
-		return -ENOMEM;
-	hdev = &edev->hdev;
-	edev->ebus = ebus;
+	hdev->bus = bus;
 
-	snprintf(name, sizeof(name), "ehdaudio%dD%d", ebus->idx, addr);
+	snprintf(name, sizeof(name), "ehdaudio%dD%d", bus->idx, addr);
 
 	ret  = snd_hdac_device_init(hdev, bus, name, addr);
 	if (ret < 0) {
@@ -176,10 +172,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
  */
 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
 {
-	struct hdac_ext_device *edev = to_ehdac_device(hdev);
-
 	snd_hdac_device_exit(hdev);
-	kfree(edev);
+	kfree(hdev);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
 
@@ -188,14 +182,14 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
  *
  * @ebus: HD-audio extended bus
  */
-void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus)
+void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus)
 {
 	struct hdac_device *codec, *__codec;
 	/*
 	 * we need to remove all the codec devices objects created in the
 	 * snd_hdac_ext_bus_device_init
 	 */
-	list_for_each_entry_safe(codec, __codec, &ebus->bus.codec_list, list) {
+	list_for_each_entry_safe(codec, __codec, &bus->codec_list, list) {
 		snd_hdac_device_unregister(codec);
 		put_device(&codec->dev);
 	}
@@ -204,35 +198,31 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_remove);
 #define dev_to_hdac(dev) (container_of((dev), \
 			struct hdac_device, dev))
 
-static inline struct hdac_ext_driver *get_edrv(struct device *dev)
+static inline struct hdac_driver *get_hdrv(struct device *dev)
 {
 	struct hdac_driver *hdrv = drv_to_hdac_driver(dev->driver);
-	struct hdac_ext_driver *edrv = to_ehdac_driver(hdrv);
-
-	return edrv;
+	return hdrv;
 }
 
-static inline struct hdac_ext_device *get_edev(struct device *dev)
+static inline struct hdac_device *get_hdev(struct device *dev)
 {
 	struct hdac_device *hdev = dev_to_hdac_dev(dev);
-	struct hdac_ext_device *edev = to_ehdac_device(hdev);
-
-	return edev;
+	return hdev;
 }
 
 static int hda_ext_drv_probe(struct device *dev)
 {
-	return (get_edrv(dev))->probe(get_edev(dev));
+	return (get_hdrv(dev))->probe(get_hdev(dev));
 }
 
 static int hdac_ext_drv_remove(struct device *dev)
 {
-	return (get_edrv(dev))->remove(get_edev(dev));
+	return (get_hdrv(dev))->remove(get_hdev(dev));
 }
 
 static void hdac_ext_drv_shutdown(struct device *dev)
 {
-	return (get_edrv(dev))->shutdown(get_edev(dev));
+	return (get_hdrv(dev))->shutdown(get_hdev(dev));
 }
 
 /**
@@ -240,20 +230,20 @@ static void hdac_ext_drv_shutdown(struct device *dev)
  *
  * @drv: ext hda driver structure
  */
-int snd_hda_ext_driver_register(struct hdac_ext_driver *drv)
+int snd_hda_ext_driver_register(struct hdac_driver *drv)
 {
-	drv->hdac.type = HDA_DEV_ASOC;
-	drv->hdac.driver.bus = &snd_hda_bus_type;
+	drv->type = HDA_DEV_ASOC;
+	drv->driver.bus = &snd_hda_bus_type;
 	/* we use default match */
 
 	if (drv->probe)
-		drv->hdac.driver.probe = hda_ext_drv_probe;
+		drv->driver.probe = hda_ext_drv_probe;
 	if (drv->remove)
-		drv->hdac.driver.remove = hdac_ext_drv_remove;
+		drv->driver.remove = hdac_ext_drv_remove;
 	if (drv->shutdown)
-		drv->hdac.driver.shutdown = hdac_ext_drv_shutdown;
+		drv->driver.shutdown = hdac_ext_drv_shutdown;
 
-	return driver_register(&drv->hdac.driver);
+	return driver_register(&drv->driver);
 }
 EXPORT_SYMBOL_GPL(snd_hda_ext_driver_register);
 
@@ -262,8 +252,8 @@ EXPORT_SYMBOL_GPL(snd_hda_ext_driver_register);
  *
  * @drv: ext hda driver structure
  */
-void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv)
+void snd_hda_ext_driver_unregister(struct hdac_driver *drv)
 {
-	driver_unregister(&drv->hdac.driver);
+	driver_unregister(&drv->driver);
 }
 EXPORT_SYMBOL_GPL(snd_hda_ext_driver_unregister);
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index 84f3b8168716..5bc4a1d587d4 100644
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -39,9 +39,8 @@
  * @ebus: HD-audio extended core bus
  * @enable: flag to turn on/off the capability
  */
-void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *ebus, bool enable)
+void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *bus, bool enable)
 {
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->ppcap) {
 		dev_err(bus->dev, "Address of PP capability is NULL");
@@ -60,9 +59,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_enable);
  * @ebus: HD-audio extended core bus
  * @enable: flag to enable/disable interrupt
  */
-void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *ebus, bool enable)
+void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *bus, bool enable)
 {
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->ppcap) {
 		dev_err(bus->dev, "Address of PP capability is NULL\n");
@@ -89,12 +87,11 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_int_enable);
  * in hlink_list of extended hdac bus
  * Note: this will be freed on bus exit by driver
  */
-int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *ebus)
+int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus)
 {
 	int idx;
 	u32 link_count;
 	struct hdac_ext_link *hlink;
-	struct hdac_bus *bus = &ebus->bus;
 
 	link_count = readl(bus->mlcap + AZX_REG_ML_MLCD) + 1;
 
@@ -114,7 +111,7 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *ebus)
 		/* since link in On, update the ref */
 		hlink->ref_count = 1;
 
-		list_add_tail(&hlink->list, &ebus->hlink_list);
+		list_add_tail(&hlink->list, &bus->hlink_list);
 	}
 
 	return 0;
@@ -127,12 +124,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities);
  * @ebus: HD-audio ext core bus
  */
 
-void snd_hdac_link_free_all(struct hdac_ext_bus *ebus)
+void snd_hdac_link_free_all(struct hdac_bus *bus)
 {
 	struct hdac_ext_link *l;
 
-	while (!list_empty(&ebus->hlink_list)) {
-		l = list_first_entry(&ebus->hlink_list, struct hdac_ext_link, list);
+	while (!list_empty(&bus->hlink_list)) {
+		l = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
 		list_del(&l->list);
 		kfree(l);
 	}
@@ -144,7 +141,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
  * @ebus: HD-audio extended core bus
  * @codec_name: codec name
  */
-struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *ebus,
+struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
 						 const char *codec_name)
 {
 	int i;
@@ -153,10 +150,10 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *ebus,
 
 	if (sscanf(codec_name, "ehdaudio%dD%d", &bus_idx, &addr) != 2)
 		return NULL;
-	if (ebus->idx != bus_idx)
+	if (bus->idx != bus_idx)
 		return NULL;
 
-	list_for_each_entry(hlink, &ebus->hlink_list, list) {
+	list_for_each_entry(hlink, &bus->hlink_list, list) {
 		for (i = 0; i < HDA_MAX_CODECS; i++) {
 			if (hlink->lsdiid & (0x1 << addr))
 				return hlink;
@@ -219,12 +216,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down);
  * snd_hdac_ext_bus_link_power_up_all -power up all hda link
  * @ebus: HD-audio extended bus
  */
-int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus)
+int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus)
 {
 	struct hdac_ext_link *hlink = NULL;
 	int ret;
 
-	list_for_each_entry(hlink, &ebus->hlink_list, list) {
+	list_for_each_entry(hlink, &bus->hlink_list, list) {
 		snd_hdac_updatel(hlink->ml_addr,
 				AZX_REG_ML_LCTL, 0, AZX_MLCTL_SPA);
 		ret = check_hdac_link_power_active(hlink, true);
@@ -240,12 +237,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up_all);
  * snd_hdac_ext_bus_link_power_down_all -power down all hda link
  * @ebus: HD-audio extended bus
  */
-int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus)
+int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
 {
 	struct hdac_ext_link *hlink = NULL;
 	int ret;
 
-	list_for_each_entry(hlink, &ebus->hlink_list, list) {
+	list_for_each_entry(hlink, &bus->hlink_list, list) {
 		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_MLCTL_SPA, 0);
 		ret = check_hdac_link_power_active(hlink, false);
 		if (ret < 0)
@@ -256,39 +253,48 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus)
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down_all);
 
-int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
 				struct hdac_ext_link *link)
 {
 	int ret = 0;
 
-	mutex_lock(&ebus->lock);
+	mutex_lock(&bus->lock);
 
 	/*
 	 * if we move from 0 to 1, count will be 1 so power up this link
 	 * as well, also check the dma status and trigger that
 	 */
 	if (++link->ref_count == 1) {
-		if (!ebus->cmd_dma_state) {
-			snd_hdac_bus_init_cmd_io(&ebus->bus);
-			ebus->cmd_dma_state = true;
+		if (!bus->cmd_dma_state) {
+			snd_hdac_bus_init_cmd_io(bus);
+			bus->cmd_dma_state = true;
 		}
 
 		ret = snd_hdac_ext_bus_link_power_up(link);
+
+		/*
+		 *  wait for 521usec for codec to report status
+		 *  HDA spec section 4.3 - Codec Discovery
+		 */
+		udelay(521);
+		bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
+		dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
+		snd_hdac_chip_writew(bus, STATESTS, bus->codec_mask);
 	}
 
-	mutex_unlock(&ebus->lock);
+	mutex_unlock(&bus->lock);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_get);
 
-int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
 				struct hdac_ext_link *link)
 {
 	int ret = 0;
 	struct hdac_ext_link *hlink;
 	bool link_up = false;
 
-	mutex_lock(&ebus->lock);
+	mutex_lock(&bus->lock);
 
 	/*
 	 * if we move from 1 to 0, count will be 0
@@ -301,7 +307,7 @@ int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
 		 * now check if all links are off, if so turn off
 		 * cmd dma as well
 		 */
-		list_for_each_entry(hlink, &ebus->hlink_list, list) {
+		list_for_each_entry(hlink, &bus->hlink_list, list) {
 			if (hlink->ref_count) {
 				link_up = true;
 				break;
@@ -309,12 +315,12 @@ int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
 		}
 
 		if (!link_up) {
-			snd_hdac_bus_stop_cmd_io(&ebus->bus);
-			ebus->cmd_dma_state = false;
+			snd_hdac_bus_stop_cmd_io(bus);
+			bus->cmd_dma_state = false;
 		}
 	}
 
-	mutex_unlock(&ebus->lock);
+	mutex_unlock(&bus->lock);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_put);
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
index c96d7a7a36af..1bd27576db98 100644
--- a/sound/hda/ext/hdac_ext_stream.c
+++ b/sound/hda/ext/hdac_ext_stream.c
@@ -25,7 +25,7 @@
 
 /**
  * snd_hdac_ext_stream_init - initialize each stream (aka device)
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: HD-audio ext core stream object to initialize
  * @idx: stream index number
  * @direction: stream direction (SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE)
@@ -34,18 +34,16 @@
  * initialize the stream, if ppcap is enabled then init those and then
  * invoke hdac stream initialization routine
  */
-void snd_hdac_ext_stream_init(struct hdac_ext_bus *ebus,
+void snd_hdac_ext_stream_init(struct hdac_bus *bus,
 				struct hdac_ext_stream *stream,
 				int idx, int direction, int tag)
 {
-	struct hdac_bus *bus = &ebus->bus;
-
 	if (bus->ppcap) {
 		stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +
 				AZX_PPHC_INTERVAL * idx;
 
 		stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +
-				AZX_PPLC_MULTI * ebus->num_streams +
+				AZX_PPLC_MULTI * bus->num_streams +
 				AZX_PPLC_INTERVAL * idx;
 	}
 
@@ -71,12 +69,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init);
 /**
  * snd_hdac_ext_stream_init_all - create and initialize the stream objects
  *   for an extended hda bus
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @start_idx: start index for streams
  * @num_stream: number of streams to initialize
  * @dir: direction of streams
  */
-int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
+int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
 		int num_stream, int dir)
 {
 	int stream_tag = 0;
@@ -88,7 +86,7 @@ int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 		if (!stream)
 			return -ENOMEM;
 		tag = ++stream_tag;
-		snd_hdac_ext_stream_init(ebus, stream, idx, dir, tag);
+		snd_hdac_ext_stream_init(bus, stream, idx, dir, tag);
 		idx++;
 	}
 
@@ -100,17 +98,16 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all);
 /**
  * snd_hdac_stream_free_all - free hdac extended stream objects
  *
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  */
-void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus)
+void snd_hdac_stream_free_all(struct hdac_bus *bus)
 {
 	struct hdac_stream *s, *_s;
 	struct hdac_ext_stream *stream;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 
 	list_for_each_entry_safe(s, _s, &bus->stream_list, list) {
 		stream = stream_to_hdac_ext_stream(s);
-		snd_hdac_ext_stream_decouple(ebus, stream, false);
+		snd_hdac_ext_stream_decouple(bus, stream, false);
 		list_del(&s->list);
 		kfree(stream);
 	}
@@ -119,15 +116,14 @@ EXPORT_SYMBOL_GPL(snd_hdac_stream_free_all);
 
 /**
  * snd_hdac_ext_stream_decouple - decouple the hdac stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: HD-audio ext core stream object to initialize
  * @decouple: flag to decouple
  */
-void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *ebus,
+void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
 				struct hdac_ext_stream *stream, bool decouple)
 {
 	struct hdac_stream *hstream = &stream->hstream;
-	struct hdac_bus *bus = &ebus->bus;
 	u32 val;
 	int mask = AZX_PPCTL_PROCEN(hstream->index);
 
@@ -251,19 +247,18 @@ void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id);
 
 static struct hdac_ext_stream *
-hdac_ext_link_stream_assign(struct hdac_ext_bus *ebus,
+hdac_ext_link_stream_assign(struct hdac_bus *bus,
 				struct snd_pcm_substream *substream)
 {
 	struct hdac_ext_stream *res = NULL;
 	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
 
-	if (!hbus->ppcap) {
-		dev_err(hbus->dev, "stream type not supported\n");
+	if (!bus->ppcap) {
+		dev_err(bus->dev, "stream type not supported\n");
 		return NULL;
 	}
 
-	list_for_each_entry(stream, &hbus->stream_list, list) {
+	list_for_each_entry(stream, &bus->stream_list, list) {
 		struct hdac_ext_stream *hstream = container_of(stream,
 						struct hdac_ext_stream,
 						hstream);
@@ -277,34 +272,33 @@ hdac_ext_link_stream_assign(struct hdac_ext_bus *ebus,
 		}
 
 		if (!hstream->link_locked) {
-			snd_hdac_ext_stream_decouple(ebus, hstream, true);
+			snd_hdac_ext_stream_decouple(bus, hstream, true);
 			res = hstream;
 			break;
 		}
 	}
 	if (res) {
-		spin_lock_irq(&hbus->reg_lock);
+		spin_lock_irq(&bus->reg_lock);
 		res->link_locked = 1;
 		res->link_substream = substream;
-		spin_unlock_irq(&hbus->reg_lock);
+		spin_unlock_irq(&bus->reg_lock);
 	}
 	return res;
 }
 
 static struct hdac_ext_stream *
-hdac_ext_host_stream_assign(struct hdac_ext_bus *ebus,
+hdac_ext_host_stream_assign(struct hdac_bus *bus,
 				struct snd_pcm_substream *substream)
 {
 	struct hdac_ext_stream *res = NULL;
 	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
 
-	if (!hbus->ppcap) {
-		dev_err(hbus->dev, "stream type not supported\n");
+	if (!bus->ppcap) {
+		dev_err(bus->dev, "stream type not supported\n");
 		return NULL;
 	}
 
-	list_for_each_entry(stream, &hbus->stream_list, list) {
+	list_for_each_entry(stream, &bus->stream_list, list) {
 		struct hdac_ext_stream *hstream = container_of(stream,
 						struct hdac_ext_stream,
 						hstream);
@@ -313,17 +307,17 @@ hdac_ext_host_stream_assign(struct hdac_ext_bus *ebus,
 
 		if (!stream->opened) {
 			if (!hstream->decoupled)
-				snd_hdac_ext_stream_decouple(ebus, hstream, true);
+				snd_hdac_ext_stream_decouple(bus, hstream, true);
 			res = hstream;
 			break;
 		}
 	}
 	if (res) {
-		spin_lock_irq(&hbus->reg_lock);
+		spin_lock_irq(&bus->reg_lock);
 		res->hstream.opened = 1;
 		res->hstream.running = 0;
 		res->hstream.substream = substream;
-		spin_unlock_irq(&hbus->reg_lock);
+		spin_unlock_irq(&bus->reg_lock);
 	}
 
 	return res;
@@ -331,7 +325,7 @@ hdac_ext_host_stream_assign(struct hdac_ext_bus *ebus,
 
 /**
  * snd_hdac_ext_stream_assign - assign a stream for the PCM
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @substream: PCM substream to assign
  * @type: type of stream (coupled, host or link stream)
  *
@@ -346,27 +340,26 @@ hdac_ext_host_stream_assign(struct hdac_ext_bus *ebus,
  * the same stream object when it's used beforehand.  when a stream is
  * decoupled, it becomes a host stream and link stream.
  */
-struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *ebus,
+struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
 					   struct snd_pcm_substream *substream,
 					   int type)
 {
 	struct hdac_ext_stream *hstream = NULL;
 	struct hdac_stream *stream = NULL;
-	struct hdac_bus *hbus = &ebus->bus;
 
 	switch (type) {
 	case HDAC_EXT_STREAM_TYPE_COUPLED:
-		stream = snd_hdac_stream_assign(hbus, substream);
+		stream = snd_hdac_stream_assign(bus, substream);
 		if (stream)
 			hstream = container_of(stream,
 					struct hdac_ext_stream, hstream);
 		return hstream;
 
 	case HDAC_EXT_STREAM_TYPE_HOST:
-		return hdac_ext_host_stream_assign(ebus, substream);
+		return hdac_ext_host_stream_assign(bus, substream);
 
 	case HDAC_EXT_STREAM_TYPE_LINK:
-		return hdac_ext_link_stream_assign(ebus, substream);
+		return hdac_ext_link_stream_assign(bus, substream);
 
 	default:
 		return NULL;
@@ -384,7 +377,6 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_assign);
 void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type)
 {
 	struct hdac_bus *bus = stream->hstream.bus;
-	struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
 
 	switch (type) {
 	case HDAC_EXT_STREAM_TYPE_COUPLED:
@@ -393,13 +385,13 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type)
 
 	case HDAC_EXT_STREAM_TYPE_HOST:
 		if (stream->decoupled && !stream->link_locked)
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
+			snd_hdac_ext_stream_decouple(bus, stream, false);
 		snd_hdac_stream_release(&stream->hstream);
 		break;
 
 	case HDAC_EXT_STREAM_TYPE_LINK:
 		if (stream->decoupled && !stream->hstream.opened)
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
+			snd_hdac_ext_stream_decouple(bus, stream, false);
 		spin_lock_irq(&bus->reg_lock);
 		stream->link_locked = 0;
 		stream->link_substream = NULL;
@@ -415,16 +407,15 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release);
 
 /**
  * snd_hdac_ext_stream_spbcap_enable - enable SPIB for a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @enable: flag to enable/disable SPIB
  * @index: stream index for which SPIB need to be enabled
  */
-void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *ebus,
+void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *bus,
 				 bool enable, int index)
 {
 	u32 mask = 0;
 	u32 register_mask = 0;
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->spbcap) {
 		dev_err(bus->dev, "Address of SPB capability is NULL\n");
@@ -446,14 +437,13 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_spbcap_enable);
 
 /**
  * snd_hdac_ext_stream_set_spib - sets the spib value of a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: hdac_ext_stream
  * @value: spib value to set
  */
-int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
 				 struct hdac_ext_stream *stream, u32 value)
 {
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->spbcap) {
 		dev_err(bus->dev, "Address of SPB capability is NULL\n");
@@ -468,15 +458,14 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_spib);
 
 /**
  * snd_hdac_ext_stream_get_spbmaxfifo - gets the spib value of a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: hdac_ext_stream
  *
  * Return maxfifo for the stream
  */
-int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
 				 struct hdac_ext_stream *stream)
 {
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->spbcap) {
 		dev_err(bus->dev, "Address of SPB capability is NULL\n");
@@ -490,11 +479,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_get_spbmaxfifo);
 
 /**
  * snd_hdac_ext_stop_streams - stop all stream if running
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  */
-void snd_hdac_ext_stop_streams(struct hdac_ext_bus *ebus)
+void snd_hdac_ext_stop_streams(struct hdac_bus *bus)
 {
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 	struct hdac_stream *stream;
 
 	if (bus->chip_init) {
@@ -507,16 +495,15 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stop_streams);
 
 /**
  * snd_hdac_ext_stream_drsm_enable - enable DMA resume for a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @enable: flag to enable/disable DRSM
  * @index: stream index for which DRSM need to be enabled
  */
-void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
+void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
 				bool enable, int index)
 {
 	u32 mask = 0;
 	u32 register_mask = 0;
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->drsmcap) {
 		dev_err(bus->dev, "Address of DRSM capability is NULL\n");
@@ -538,14 +525,13 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_drsm_enable);
 
 /**
  * snd_hdac_ext_stream_set_dpibr - sets the dpibr value of a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: hdac_ext_stream
  * @value: dpib value to set
  */
-int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
+int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
 				 struct hdac_ext_stream *stream, u32 value)
 {
-	struct hdac_bus *bus = &ebus->bus;
 
 	if (!bus->drsmcap) {
 		dev_err(bus->dev, "Address of DRSM capability is NULL\n");
@@ -560,7 +546,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_dpibr);
 
 /**
  * snd_hdac_ext_stream_set_lpib - sets the lpib value of a stream
- * @ebus: HD-audio ext core bus
+ * @bus: HD-audio core bus
  * @stream: hdac_ext_stream
  * @value: lpib value to set
  */
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index decd46b51087..ffe7911e6586 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -851,6 +851,39 @@ static void snd_hda_codec_dev_release(struct device *dev)
 	kfree(codec);
 }
 
+#define DEV_NAME_LEN 31
+
+static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
+			unsigned int codec_addr, struct hda_codec **codecp)
+{
+	char name[DEV_NAME_LEN];
+	struct hda_codec *codec;
+	int err;
+
+	dev_dbg(card->dev, "%s: entry\n", __func__);
+
+	if (snd_BUG_ON(!bus))
+		return -EINVAL;
+	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
+		return -EINVAL;
+
+	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
+	if (!codec)
+		return -ENOMEM;
+
+	sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
+	err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
+	if (err < 0) {
+		kfree(codec);
+		return err;
+	}
+
+	codec->core.type = HDA_DEV_LEGACY;
+	*codecp = codec;
+
+	return err;
+}
+
 /**
  * snd_hda_codec_new - create a HDA codec
  * @bus: the bus to assign
@@ -862,7 +895,19 @@ static void snd_hda_codec_dev_release(struct device *dev)
 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		      unsigned int codec_addr, struct hda_codec **codecp)
 {
-	struct hda_codec *codec;
+	int ret;
+
+	ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
+	if (ret < 0)
+		return ret;
+
+	return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
+}
+EXPORT_SYMBOL_GPL(snd_hda_codec_new);
+
+int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
+			unsigned int codec_addr, struct hda_codec *codec)
+{
 	char component[31];
 	hda_nid_t fg;
 	int err;
@@ -872,25 +917,14 @@ int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		.dev_free = snd_hda_codec_dev_free,
 	};
 
+	dev_dbg(card->dev, "%s: entry\n", __func__);
+
 	if (snd_BUG_ON(!bus))
 		return -EINVAL;
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 		return -EINVAL;
 
-	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
-	if (!codec)
-		return -ENOMEM;
-
-	sprintf(component, "hdaudioC%dD%d", card->number, codec_addr);
-	err = snd_hdac_device_init(&codec->core, &bus->core, component,
-				   codec_addr);
-	if (err < 0) {
-		kfree(codec);
-		return err;
-	}
-
 	codec->core.dev.release = snd_hda_codec_dev_release;
-	codec->core.type = HDA_DEV_LEGACY;
 	codec->core.exec_verb = codec_exec_verb;
 
 	codec->bus = bus;
@@ -950,15 +984,13 @@ int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 	if (err < 0)
 		goto error;
 
-	if (codecp)
-		*codecp = codec;
 	return 0;
 
  error:
 	put_device(hda_codec_dev(codec));
 	return err;
 }
-EXPORT_SYMBOL_GPL(snd_hda_codec_new);
+EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
 
 /**
  * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
@@ -2982,6 +3014,7 @@ int snd_hda_codec_build_controls(struct hda_codec *codec)
 	sync_power_up_states(codec);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
 
 /*
  * PCM stuff
@@ -3187,6 +3220,7 @@ int snd_hda_codec_parse_pcms(struct hda_codec *codec)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
 
 /* assign all PCMs of the given codec */
 int snd_hda_codec_build_pcms(struct hda_codec *codec)
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 993294c8fd0a..c3e97f558620 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -308,6 +308,8 @@ struct hda_codec {
  */
 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		      unsigned int codec_addr, struct hda_codec **codecp);
+int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
+		      unsigned int codec_addr, struct hda_codec *codec);
 int snd_hda_codec_configure(struct hda_codec *codec);
 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 84f7a7a36e4b..3e3a2a9ef310 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -85,7 +85,7 @@ struct hdac_hdmi_pin {
 	bool mst_capable;
 	struct hdac_hdmi_port *ports;
 	int num_ports;
-	struct hdac_ext_device *edev;
+	struct hdac_device *hdev;
 };
 
 struct hdac_hdmi_port {
@@ -126,6 +126,9 @@ struct hdac_hdmi_drv_data {
 };
 
 struct hdac_hdmi_priv {
+	struct hdac_device *hdev;
+	struct snd_soc_component *component;
+	struct snd_card *card;
 	struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
 	struct list_head pin_list;
 	struct list_head cvt_list;
@@ -139,7 +142,7 @@ struct hdac_hdmi_priv {
 	struct snd_soc_dai_driver *dai_drv;
 };
 
-#define hdev_to_hdmi_priv(_hdev) ((to_ehdac_device(_hdev))->private_data)
+#define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
 
 static struct hdac_hdmi_pcm *
 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
@@ -158,7 +161,7 @@ hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 		struct hdac_hdmi_port *port, bool is_connect)
 {
-	struct hdac_ext_device *edev = port->pin->edev;
+	struct hdac_device *hdev = port->pin->hdev;
 
 	if (is_connect)
 		snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
@@ -172,7 +175,7 @@ static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 		 * ports.
 		 */
 		if (pcm->jack_event == 0) {
-			dev_dbg(&edev->hdev.dev,
+			dev_dbg(&hdev->dev,
 					"jack report for pcm=%d\n",
 					pcm->pcm_id);
 			snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
@@ -198,19 +201,18 @@ static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 /*
  * Get the no devices that can be connected to a port on the Pin widget.
  */
-static int hdac_hdmi_get_port_len(struct hdac_ext_device *edev, hda_nid_t nid)
+static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
 {
 	unsigned int caps;
 	unsigned int type, param;
 
-	caps = get_wcaps(&edev->hdev, nid);
+	caps = get_wcaps(hdev, nid);
 	type = get_wcaps_type(caps);
 
 	if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
 		return 0;
 
-	param = snd_hdac_read_parm_uncached(&edev->hdev, nid,
-					AC_PAR_DEVLIST_LEN);
+	param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
 	if (param == -1)
 		return param;
 
@@ -222,10 +224,10 @@ static int hdac_hdmi_get_port_len(struct hdac_ext_device *edev, hda_nid_t nid)
  * id selected on the pin. Return 0 means the first port entry
  * is selected or MST is not supported.
  */
-static int hdac_hdmi_port_select_get(struct hdac_ext_device *edev,
+static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
 					struct hdac_hdmi_port *port)
 {
-	return snd_hdac_codec_read(&edev->hdev, port->pin->nid,
+	return snd_hdac_codec_read(hdev, port->pin->nid,
 				0, AC_VERB_GET_DEVICE_SEL, 0);
 }
 
@@ -233,7 +235,7 @@ static int hdac_hdmi_port_select_get(struct hdac_ext_device *edev,
  * Sets the selected port entry for the configuring Pin widget verb.
  * returns error if port set is not equal to port get otherwise success
  */
-static int hdac_hdmi_port_select_set(struct hdac_ext_device *edev,
+static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
 					struct hdac_hdmi_port *port)
 {
 	int num_ports;
@@ -242,8 +244,7 @@ static int hdac_hdmi_port_select_set(struct hdac_ext_device *edev,
 		return 0;
 
 	/* AC_PAR_DEVLIST_LEN is 0 based. */
-	num_ports = hdac_hdmi_get_port_len(edev, port->pin->nid);
-
+	num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
 	if (num_ports < 0)
 		return -EIO;
 	/*
@@ -253,13 +254,13 @@ static int hdac_hdmi_port_select_set(struct hdac_ext_device *edev,
 	if (num_ports + 1  < port->id)
 		return 0;
 
-	snd_hdac_codec_write(&edev->hdev, port->pin->nid, 0,
+	snd_hdac_codec_write(hdev, port->pin->nid, 0,
 			AC_VERB_SET_DEVICE_SEL, port->id);
 
-	if (port->id != hdac_hdmi_port_select_get(edev, port))
+	if (port->id != hdac_hdmi_port_select_get(hdev, port))
 		return -EIO;
 
-	dev_dbg(&edev->hdev.dev, "Selected the port=%d\n", port->id);
+	dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
 
 	return 0;
 }
@@ -277,13 +278,6 @@ static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
 	return NULL;
 }
 
-static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
-{
-	struct hdac_device *hdev = dev_to_hdac_dev(dev);
-
-	return to_ehdac_device(hdev);
-}
-
 static unsigned int sad_format(const u8 *sad)
 {
 	return ((sad[0] >> 0x3) & 0x1f);
@@ -324,15 +318,13 @@ format_constraint:
 }
 
 static void
-hdac_hdmi_set_dip_index(struct hdac_ext_device *edev, hda_nid_t pin_nid,
+hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
 				int packet_index, int byte_index)
 {
 	int val;
 
 	val = (packet_index << 5) | (byte_index & 0x1f);
-
-	snd_hdac_codec_write(&edev->hdev, pin_nid, 0,
-				AC_VERB_SET_HDMI_DIP_INDEX, val);
+	snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 }
 
 struct dp_audio_infoframe {
@@ -347,14 +339,14 @@ struct dp_audio_infoframe {
 	u8 LFEPBL01_LSV36_DM_INH7;
 };
 
-static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *edev,
+static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
 		   struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 {
 	uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 	struct hdmi_audio_infoframe frame;
 	struct hdac_hdmi_pin *pin = port->pin;
 	struct dp_audio_infoframe dp_ai;
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_cvt *cvt = pcm->cvt;
 	u8 *dip;
 	int ret;
@@ -363,11 +355,11 @@ static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *edev,
 	u8 conn_type;
 	int channels, ca;
 
-	ca = snd_hdac_channel_allocation(&edev->hdev, port->eld.info.spk_alloc,
+	ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
 			pcm->channels, pcm->chmap_set, true, pcm->chmap);
 
 	channels = snd_hdac_get_active_channels(ca);
-	hdmi->chmap.ops.set_channel_count(&edev->hdev, cvt->nid, channels);
+	hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
 
 	snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
 				pcm->channels, pcm->chmap, pcm->chmap_set);
@@ -400,32 +392,31 @@ static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *edev,
 		break;
 
 	default:
-		dev_err(&edev->hdev.dev, "Invalid connection type: %d\n",
-						conn_type);
+		dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
 		return -EIO;
 	}
 
 	/* stop infoframe transmission */
-	hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
-	snd_hdac_codec_write(&edev->hdev, pin->nid, 0,
+	hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
+	snd_hdac_codec_write(hdev, pin->nid, 0,
 			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 
 
 	/*  Fill infoframe. Index auto-incremented */
-	hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
+	hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 	if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 		for (i = 0; i < sizeof(buffer); i++)
-			snd_hdac_codec_write(&edev->hdev, pin->nid, 0,
+			snd_hdac_codec_write(hdev, pin->nid, 0,
 				AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 	} else {
 		for (i = 0; i < sizeof(dp_ai); i++)
-			snd_hdac_codec_write(&edev->hdev, pin->nid, 0,
+			snd_hdac_codec_write(hdev, pin->nid, 0,
 				AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 	}
 
 	/* Start infoframe */
-	hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
-	snd_hdac_codec_write(&edev->hdev, pin->nid, 0,
+	hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
+	snd_hdac_codec_write(hdev, pin->nid, 0,
 			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 
 	return 0;
@@ -435,12 +426,12 @@ static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
 		unsigned int tx_mask, unsigned int rx_mask,
 		int slots, int slot_width)
 {
-	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct hdac_hdmi_dai_port_map *dai_map;
 	struct hdac_hdmi_pcm *pcm;
 
-	dev_dbg(&edev->hdev.dev, "%s: strm_tag: %d\n", __func__, tx_mask);
+	dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
 
 	dai_map = &hdmi->dai_map[dai->id];
 
@@ -455,8 +446,8 @@ static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
 {
-	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct hdac_hdmi_dai_port_map *dai_map;
 	struct hdac_hdmi_port *port;
 	struct hdac_hdmi_pcm *pcm;
@@ -469,7 +460,7 @@ static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 		return -ENODEV;
 
 	if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
-		dev_err(&edev->hdev.dev,
+		dev_err(&hdev->dev,
 			"device is not configured for this pin:port%d:%d\n",
 					port->pin->nid, port->id);
 		return -ENODEV;
@@ -489,28 +480,28 @@ static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *edev,
+static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
 					struct hdac_hdmi_pin *pin,
 					struct hdac_hdmi_port *port)
 {
-	if (!(get_wcaps(&edev->hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
-		dev_warn(&edev->hdev.dev,
+	if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
+		dev_warn(&hdev->dev,
 			"HDMI: pin %d wcaps %#x does not support connection list\n",
-			pin->nid, get_wcaps(&edev->hdev, pin->nid));
+			pin->nid, get_wcaps(hdev, pin->nid));
 		return -EINVAL;
 	}
 
-	if (hdac_hdmi_port_select_set(edev, port) < 0)
+	if (hdac_hdmi_port_select_set(hdev, port) < 0)
 		return -EIO;
 
-	port->num_mux_nids = snd_hdac_get_connections(&edev->hdev, pin->nid,
+	port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
 			port->mux_nids, HDA_MAX_CONNECTIONS);
 	if (port->num_mux_nids == 0)
-		dev_warn(&edev->hdev.dev,
+		dev_warn(&hdev->dev,
 			"No connections found for pin:port %d:%d\n",
 						pin->nid, port->id);
 
-	dev_dbg(&edev->hdev.dev, "num_mux_nids %d for pin:port %d:%d\n",
+	dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
 			port->num_mux_nids, pin->nid, port->id);
 
 	return port->num_mux_nids;
@@ -526,7 +517,7 @@ static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *edev,
  * connected.
  */
 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
-			struct hdac_ext_device *edev,
+			struct hdac_device *hdev,
 			struct hdac_hdmi_priv *hdmi,
 			struct hdac_hdmi_cvt *cvt)
 {
@@ -541,7 +532,7 @@ static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 
 			list_for_each_entry(port, &pcm->port_list, head) {
 				mutex_lock(&pcm->lock);
-				ret = hdac_hdmi_query_port_connlist(edev,
+				ret = hdac_hdmi_query_port_connlist(hdev,
 							port->pin, port);
 				mutex_unlock(&pcm->lock);
 				if (ret < 0)
@@ -568,8 +559,8 @@ static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 			struct snd_soc_dai *dai)
 {
-	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct hdac_hdmi_dai_port_map *dai_map;
 	struct hdac_hdmi_cvt *cvt;
 	struct hdac_hdmi_port *port;
@@ -578,7 +569,7 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 	dai_map = &hdmi->dai_map[dai->id];
 
 	cvt = dai_map->cvt;
-	port = hdac_hdmi_get_port_from_cvt(edev, hdmi, cvt);
+	port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 
 	/*
 	 * To make PA and other userland happy.
@@ -589,7 +580,7 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 	if ((!port->eld.monitor_present) ||
 			(!port->eld.eld_valid)) {
 
-		dev_warn(&edev->hdev.dev,
+		dev_warn(&hdev->dev,
 			"Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
 			port->eld.monitor_present, port->eld.eld_valid,
 			port->pin->nid, port->id);
@@ -611,8 +602,7 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
-	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 	struct hdac_hdmi_dai_port_map *dai_map;
 	struct hdac_hdmi_pcm *pcm;
 
@@ -695,10 +685,10 @@ static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
 	route->connected = handler;
 }
 
-static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
+static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
 					struct hdac_hdmi_port *port)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pcm *pcm = NULL;
 	struct hdac_hdmi_port *p;
 
@@ -715,33 +705,32 @@ static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
 	return NULL;
 }
 
-static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
+static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
 			     hda_nid_t nid, unsigned int pwr_state)
 {
 	int count;
 	unsigned int state;
 
-	if (get_wcaps(&edev->hdev, nid) & AC_WCAP_POWER) {
-		if (!snd_hdac_check_power_state(&edev->hdev, nid, pwr_state)) {
+	if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
+		if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
 			for (count = 0; count < 10; count++) {
-				snd_hdac_codec_read(&edev->hdev, nid, 0,
+				snd_hdac_codec_read(hdev, nid, 0,
 						AC_VERB_SET_POWER_STATE,
 						pwr_state);
-				state = snd_hdac_sync_power_state(&edev->hdev,
+				state = snd_hdac_sync_power_state(hdev,
 						nid, pwr_state);
 				if (!(state & AC_PWRST_ERROR))
 					break;
 			}
 		}
-
 	}
 }
 
-static void hdac_hdmi_set_amp(struct hdac_ext_device *edev,
+static void hdac_hdmi_set_amp(struct hdac_device *hdev,
 				   hda_nid_t nid, int val)
 {
-	if (get_wcaps(&edev->hdev, nid) & AC_WCAP_OUT_AMP)
-		snd_hdac_codec_write(&edev->hdev, nid, 0,
+	if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
+		snd_hdac_codec_write(hdev, nid, 0,
 					AC_VERB_SET_AMP_GAIN_MUTE, val);
 }
 
@@ -750,40 +739,40 @@ static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 					struct snd_kcontrol *kc, int event)
 {
 	struct hdac_hdmi_port *port = w->priv;
-	struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
+	struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 	struct hdac_hdmi_pcm *pcm;
 
-	dev_dbg(&edev->hdev.dev, "%s: widget: %s event: %x\n",
+	dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 			__func__, w->name, event);
 
-	pcm = hdac_hdmi_get_pcm(edev, port);
+	pcm = hdac_hdmi_get_pcm(hdev, port);
 	if (!pcm)
 		return -EIO;
 
 	/* set the device if pin is mst_capable */
-	if (hdac_hdmi_port_select_set(edev, port) < 0)
+	if (hdac_hdmi_port_select_set(hdev, port) < 0)
 		return -EIO;
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D0);
+		hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
 
 		/* Enable out path for this pin widget */
-		snd_hdac_codec_write(&edev->hdev, port->pin->nid, 0,
+		snd_hdac_codec_write(hdev, port->pin->nid, 0,
 				AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 
-		hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_UNMUTE);
+		hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
 
-		return hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
+		return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 
 	case SND_SOC_DAPM_POST_PMD:
-		hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_MUTE);
+		hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
 
 		/* Disable out path for this pin widget */
-		snd_hdac_codec_write(&edev->hdev, port->pin->nid, 0,
+		snd_hdac_codec_write(hdev, port->pin->nid, 0,
 				AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
 
-		hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D3);
+		hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
 		break;
 
 	}
@@ -795,11 +784,11 @@ static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 					struct snd_kcontrol *kc, int event)
 {
 	struct hdac_hdmi_cvt *cvt = w->priv;
-	struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pcm *pcm;
 
-	dev_dbg(&edev->hdev.dev, "%s: widget: %s event: %x\n",
+	dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 			__func__, w->name, event);
 
 	pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
@@ -808,29 +797,29 @@ static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D0);
+		hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
 
 		/* Enable transmission */
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 			AC_VERB_SET_DIGI_CONVERT_1, 1);
 
 		/* Category Code (CC) to zero */
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 			AC_VERB_SET_DIGI_CONVERT_2, 0);
 
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 				AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 				AC_VERB_SET_STREAM_FORMAT, pcm->format);
 		break;
 
 	case SND_SOC_DAPM_POST_PMD:
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 				AC_VERB_SET_CHANNEL_STREAMID, 0);
-		snd_hdac_codec_write(&edev->hdev, cvt->nid, 0,
+		snd_hdac_codec_write(hdev, cvt->nid, 0,
 				AC_VERB_SET_STREAM_FORMAT, 0);
 
-		hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D3);
+		hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
 		break;
 
 	}
@@ -842,10 +831,10 @@ static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 					struct snd_kcontrol *kc, int event)
 {
 	struct hdac_hdmi_port *port = w->priv;
-	struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
+	struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 	int mux_idx;
 
-	dev_dbg(&edev->hdev.dev, "%s: widget: %s event: %x\n",
+	dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 			__func__, w->name, event);
 
 	if (!kc)
@@ -854,11 +843,11 @@ static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 	mux_idx = dapm_kcontrol_get_value(kc);
 
 	/* set the device if pin is mst_capable */
-	if (hdac_hdmi_port_select_set(edev, port) < 0)
+	if (hdac_hdmi_port_select_set(hdev, port) < 0)
 		return -EIO;
 
 	if (mux_idx > 0) {
-		snd_hdac_codec_write(&edev->hdev, port->pin->nid, 0,
+		snd_hdac_codec_write(hdev, port->pin->nid, 0,
 			AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
 	}
 
@@ -877,8 +866,8 @@ static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
 	struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct hdac_hdmi_port *port = w->priv;
-	struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pcm *pcm = NULL;
 	const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
 
@@ -931,12 +920,12 @@ static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
  * care of selecting the right one and leaving all other inputs selected to
  * "NONE"
  */
-static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev,
+static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
 				struct hdac_hdmi_port *port,
 				struct snd_soc_dapm_widget *widget,
 				const char *widget_name)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pin *pin = port->pin;
 	struct snd_kcontrol_new *kc;
 	struct hdac_hdmi_cvt *cvt;
@@ -948,17 +937,17 @@ static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev,
 	int i = 0;
 	int num_items = hdmi->num_cvt + 1;
 
-	kc = devm_kzalloc(&edev->hdev.dev, sizeof(*kc), GFP_KERNEL);
+	kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
 	if (!kc)
 		return -ENOMEM;
 
-	se = devm_kzalloc(&edev->hdev.dev, sizeof(*se), GFP_KERNEL);
+	se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
 	if (!se)
 		return -ENOMEM;
 
 	snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
 						pin->nid, port->id);
-	kc->name = devm_kstrdup(&edev->hdev.dev, kc_name, GFP_KERNEL);
+	kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
 	if (!kc->name)
 		return -ENOMEM;
 
@@ -976,35 +965,35 @@ static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev,
 	se->mask = roundup_pow_of_two(se->items) - 1;
 
 	sprintf(mux_items, "NONE");
-	items[i] = devm_kstrdup(&edev->hdev.dev, mux_items, GFP_KERNEL);
+	items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 	if (!items[i])
 		return -ENOMEM;
 
 	list_for_each_entry(cvt, &hdmi->cvt_list, head) {
 		i++;
 		sprintf(mux_items, "cvt %d", cvt->nid);
-		items[i] = devm_kstrdup(&edev->hdev.dev, mux_items, GFP_KERNEL);
+		items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 		if (!items[i])
 			return -ENOMEM;
 	}
 
-	se->texts = devm_kmemdup(&edev->hdev.dev, items,
+	se->texts = devm_kmemdup(&hdev->dev, items,
 			(num_items  * sizeof(char *)), GFP_KERNEL);
 	if (!se->texts)
 		return -ENOMEM;
 
-	return hdac_hdmi_fill_widget_info(&edev->hdev.dev, widget,
+	return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
 			snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
 			hdac_hdmi_pin_mux_widget_event,
 			SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
 }
 
 /* Add cvt <- input <- mux route map */
-static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev,
+static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
 			struct snd_soc_dapm_widget *widgets,
 			struct snd_soc_dapm_route *route, int rindex)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	const struct snd_kcontrol_new *kc;
 	struct soc_enum *se;
 	int mux_index = hdmi->num_cvt + hdmi->num_ports;
@@ -1046,8 +1035,8 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
 {
 	struct snd_soc_dapm_widget *widgets;
 	struct snd_soc_dapm_route *route;
-	struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
 	char widget_name[NAME_SIZE];
 	struct hdac_hdmi_cvt *cvt;
@@ -1099,7 +1088,7 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
 		for (j = 0; j < pin->num_ports; j++) {
 			sprintf(widget_name, "Pin%d-Port%d Mux",
 				pin->nid, pin->ports[j].id);
-			ret = hdac_hdmi_create_pin_port_muxs(edev,
+			ret = hdac_hdmi_create_pin_port_muxs(hdev,
 						&pin->ports[j], &widgets[i],
 						widget_name);
 			if (ret < 0)
@@ -1134,7 +1123,7 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
 		}
 	}
 
-	hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i);
+	hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
 
 	snd_soc_dapm_new_controls(dapm, widgets,
 		((2 * hdmi->num_ports) + hdmi->num_cvt));
@@ -1146,9 +1135,9 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
 
 }
 
-static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
+static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_dai_port_map *dai_map;
 	struct hdac_hdmi_cvt *cvt;
 	int dai_id = 0;
@@ -1164,7 +1153,7 @@ static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
 		dai_id++;
 
 		if (dai_id == HDA_MAX_CVTS) {
-			dev_warn(&edev->hdev.dev,
+			dev_warn(&hdev->dev,
 				"Max dais supported: %d\n", dai_id);
 			break;
 		}
@@ -1173,9 +1162,9 @@ static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
 	return 0;
 }
 
-static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid)
+static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_cvt *cvt;
 	char name[NAME_SIZE];
 
@@ -1190,10 +1179,10 @@ static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid)
 	list_add_tail(&cvt->head, &hdmi->cvt_list);
 	hdmi->num_cvt++;
 
-	return hdac_hdmi_query_cvt_params(&edev->hdev, cvt);
+	return hdac_hdmi_query_cvt_params(hdev, cvt);
 }
 
-static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
+static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
 			struct hdac_hdmi_port *port)
 {
 	unsigned int ver, mnl;
@@ -1202,7 +1191,7 @@ static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
 						>> DRM_ELD_VER_SHIFT;
 
 	if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
-		dev_err(&edev->hdev.dev, "HDMI: Unknown ELD version %d\n", ver);
+		dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
 		return -EINVAL;
 	}
 
@@ -1210,7 +1199,7 @@ static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
 		DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
 
 	if (mnl > ELD_MAX_MNL) {
-		dev_err(&edev->hdev.dev, "HDMI: MNL Invalid %d\n", mnl);
+		dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
 		return -EINVAL;
 	}
 
@@ -1222,8 +1211,8 @@ static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
 				    struct hdac_hdmi_port *port)
 {
-	struct hdac_ext_device *edev = pin->edev;
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_device *hdev = pin->hdev;
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pcm *pcm;
 	int size = 0;
 	int port_id = -1;
@@ -1241,14 +1230,14 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
 	if (pin->mst_capable)
 		port_id = port->id;
 
-	size = snd_hdac_acomp_get_eld(&edev->hdev, pin->nid, port_id,
+	size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
 				&port->eld.monitor_present,
 				port->eld.eld_buffer,
 				ELD_MAX_SIZE);
 
 	if (size > 0) {
 		size = min(size, ELD_MAX_SIZE);
-		if (hdac_hdmi_parse_eld(edev, port) < 0)
+		if (hdac_hdmi_parse_eld(hdev, port) < 0)
 			size = -EINVAL;
 	}
 
@@ -1260,11 +1249,11 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
 		port->eld.eld_size = 0;
 	}
 
-	pcm = hdac_hdmi_get_pcm(edev, port);
+	pcm = hdac_hdmi_get_pcm(hdev, port);
 
 	if (!port->eld.monitor_present || !port->eld.eld_valid) {
 
-		dev_err(&edev->hdev.dev, "%s: disconnect for pin:port %d:%d\n",
+		dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
 						__func__, pin->nid, port->id);
 
 		/*
@@ -1316,9 +1305,9 @@ static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi,
 	return 0;
 }
 
-static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
+static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pin *pin;
 	int ret;
 
@@ -1328,7 +1317,7 @@ static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
 
 	pin->nid = nid;
 	pin->mst_capable = false;
-	pin->edev = edev;
+	pin->hdev = hdev;
 	ret = hdac_hdmi_add_ports(hdmi, pin);
 	if (ret < 0)
 		return ret;
@@ -1459,15 +1448,14 @@ static int hdac_hdmi_create_dais(struct hdac_device *hdev,
  * Parse all nodes and store the cvt/pin nids in array
  * Add one time initialization for pin and cvt widgets
  */
-static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
+static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
 		struct snd_soc_dai_driver **dais, int *num_dais)
 {
 	hda_nid_t nid;
 	int i, num_nodes;
 	struct hdac_hdmi_cvt *temp_cvt, *cvt_next;
 	struct hdac_hdmi_pin *temp_pin, *pin_next;
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
-	struct hdac_device *hdev = &edev->hdev;
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	int ret;
 
 	hdac_hdmi_skl_enable_all_pins(hdev);
@@ -1492,13 +1480,13 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
 		switch (type) {
 
 		case AC_WID_AUD_OUT:
-			ret = hdac_hdmi_add_cvt(edev, nid);
+			ret = hdac_hdmi_add_cvt(hdev, nid);
 			if (ret < 0)
 				goto free_widgets;
 			break;
 
 		case AC_WID_PIN:
-			ret = hdac_hdmi_add_pin(edev, nid);
+			ret = hdac_hdmi_add_pin(hdev, nid);
 			if (ret < 0)
 				goto free_widgets;
 			break;
@@ -1518,7 +1506,7 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
 	}
 
 	*num_dais = hdmi->num_cvt;
-	ret = hdac_hdmi_init_dai_map(edev);
+	ret = hdac_hdmi_init_dai_map(hdev);
 	if (ret < 0)
 		goto free_widgets;
 
@@ -1544,17 +1532,17 @@ free_widgets:
 
 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
 {
-	struct hdac_ext_device *edev = aptr;
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_device *hdev = aptr;
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pin *pin = NULL;
 	struct hdac_hdmi_port *hport = NULL;
-	struct snd_soc_component *component = edev->scodec;
+	struct snd_soc_component *component = hdmi->component;
 	int i;
 
 	/* Don't know how this mapping is derived */
 	hda_nid_t pin_nid = port + 0x04;
 
-	dev_dbg(&edev->hdev.dev, "%s: for pin:%d port=%d\n", __func__,
+	dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
 							pin_nid, pipe);
 
 	/*
@@ -1567,7 +1555,7 @@ static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
 			SNDRV_CTL_POWER_D0)
 		return;
 
-	if (atomic_read(&edev->hdev.in_pm))
+	if (atomic_read(&hdev->in_pm))
 		return;
 
 	list_for_each_entry(pin, &hdmi->pin_list, head) {
@@ -1614,15 +1602,15 @@ static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
 
 /* create jack pin kcontrols */
 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
-				    struct hdac_ext_device *edev)
+				    struct hdac_device *hdev)
 {
 	struct hdac_hdmi_pin *pin;
 	struct snd_kcontrol_new *kc;
 	char kc_name[NAME_SIZE], xname[NAME_SIZE];
 	char *name;
 	int i = 0, j;
-	struct snd_soc_component *component = edev->scodec;
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
+	struct snd_soc_component *component = hdmi->component;
 
 	kc = devm_kcalloc(component->dev, hdmi->num_ports,
 				sizeof(*kc), GFP_KERNEL);
@@ -1659,8 +1647,8 @@ static int create_fill_jack_kcontrols(struct snd_soc_card *card,
 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
 			struct snd_soc_dapm_context *dapm)
 {
-	struct hdac_ext_device *edev = snd_soc_component_get_drvdata(component);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct hdac_hdmi_pin *pin;
 	struct snd_soc_dapm_widget *widgets;
 	struct snd_soc_dapm_route *route;
@@ -1715,7 +1703,7 @@ int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
 		return ret;
 
 	/* Add Jack Pin switch Kcontrol */
-	ret = create_fill_jack_kcontrols(dapm->card, edev);
+	ret = create_fill_jack_kcontrols(dapm->card, hdev);
 
 	if (ret < 0)
 		return ret;
@@ -1735,8 +1723,8 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
 				struct snd_soc_jack *jack)
 {
 	struct snd_soc_component *component = dai->component;
-	struct hdac_ext_device *edev = snd_soc_component_get_drvdata(component);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct hdac_hdmi_pcm *pcm;
 	struct snd_pcm *snd_pcm;
 	int err;
@@ -1758,7 +1746,7 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
 	if (snd_pcm) {
 		err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
 		if (err < 0) {
-			dev_err(&edev->hdev.dev,
+			dev_err(&hdev->dev,
 				"chmap control add failed with err: %d for pcm: %d\n",
 				err, device);
 			kfree(pcm);
@@ -1772,7 +1760,7 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
 }
 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
 
-static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev,
+static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
 			struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
 {
 	int i;
@@ -1781,7 +1769,7 @@ static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev,
 	list_for_each_entry(pin, &hdmi->pin_list, head) {
 		if (detect_pin_caps) {
 
-			if (hdac_hdmi_get_port_len(edev, pin->nid)  == 0)
+			if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
 				pin->mst_capable = false;
 			else
 				pin->mst_capable = true;
@@ -1798,68 +1786,67 @@ static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev,
 
 static int hdmi_codec_probe(struct snd_soc_component *component)
 {
-	struct hdac_ext_device *edev = snd_soc_component_get_drvdata(component);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+	struct hdac_device *hdev = hdmi->hdev;
 	struct snd_soc_dapm_context *dapm =
 		snd_soc_component_get_dapm(component);
 	struct hdac_ext_link *hlink = NULL;
 	int ret;
 
-	edev->scodec = component;
+	hdmi->component = component;
 
 	/*
 	 * hold the ref while we probe, also no need to drop the ref on
 	 * exit, we call pm_runtime_suspend() so that will do for us
 	 */
-	hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdev.dev));
+	hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
 	if (!hlink) {
-		dev_err(&edev->hdev.dev, "hdac link not found\n");
+		dev_err(&hdev->dev, "hdac link not found\n");
 		return -EIO;
 	}
 
-	snd_hdac_ext_bus_link_get(edev->ebus, hlink);
+	snd_hdac_ext_bus_link_get(hdev->bus, hlink);
 
 	ret = create_fill_widget_route_map(dapm);
 	if (ret < 0)
 		return ret;
 
-	aops.audio_ptr = edev;
+	aops.audio_ptr = hdev;
 	ret = snd_hdac_i915_register_notifier(&aops);
 	if (ret < 0) {
-		dev_err(&edev->hdev.dev, "notifier register failed: err: %d\n",
-				ret);
+		dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
 		return ret;
 	}
 
-	hdac_hdmi_present_sense_all_pins(edev, hdmi, true);
+	hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
 	/* Imp: Store the card pointer in hda_codec */
-	edev->card = dapm->card->snd_card;
+	hdmi->card = dapm->card->snd_card;
 
 	/*
 	 * hdac_device core already sets the state to active and calls
 	 * get_noresume. So enable runtime and set the device to suspend.
 	 */
-	pm_runtime_enable(&edev->hdev.dev);
-	pm_runtime_put(&edev->hdev.dev);
-	pm_runtime_suspend(&edev->hdev.dev);
+	pm_runtime_enable(&hdev->dev);
+	pm_runtime_put(&hdev->dev);
+	pm_runtime_suspend(&hdev->dev);
 
 	return 0;
 }
 
 static void hdmi_codec_remove(struct snd_soc_component *component)
 {
-	struct hdac_ext_device *edev = snd_soc_component_get_drvdata(component);
+	struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+	struct hdac_device *hdev = hdmi->hdev;
 
-	pm_runtime_disable(&edev->hdev.dev);
+	pm_runtime_disable(&hdev->dev);
 }
 
 #ifdef CONFIG_PM
 static int hdmi_codec_prepare(struct device *dev)
 {
-	struct hdac_ext_device *edev = to_hda_ext_device(dev);
-	struct hdac_device *hdev = &edev->hdev;
+	struct hdac_device *hdev = dev_to_hdac_dev(dev);
 
-	pm_runtime_get_sync(&edev->hdev.dev);
+	pm_runtime_get_sync(&hdev->dev);
 
 	/*
 	 * Power down afg.
@@ -1876,16 +1863,15 @@ static int hdmi_codec_prepare(struct device *dev)
 
 static void hdmi_codec_complete(struct device *dev)
 {
-	struct hdac_ext_device *edev = to_hda_ext_device(dev);
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
-	struct hdac_device *hdev = &edev->hdev;
+	struct hdac_device *hdev = dev_to_hdac_dev(dev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 
 	/* Power up afg */
 	snd_hdac_codec_read(hdev, hdev->afg, 0,	AC_VERB_SET_POWER_STATE,
 							AC_PWRST_D0);
 
-	hdac_hdmi_skl_enable_all_pins(&edev->hdev);
-	hdac_hdmi_skl_enable_dp12(&edev->hdev);
+	hdac_hdmi_skl_enable_all_pins(hdev);
+	hdac_hdmi_skl_enable_dp12(hdev);
 
 	/*
 	 * As the ELD notify callback request is not entertained while the
@@ -1893,9 +1879,9 @@ static void hdmi_codec_complete(struct device *dev)
 	 * all pins here. pin capablity change is not support, so use the
 	 * already set pin caps.
 	 */
-	hdac_hdmi_present_sense_all_pins(edev, hdmi, false);
+	hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
 
-	pm_runtime_put_sync(&edev->hdev.dev);
+	pm_runtime_put_sync(&hdev->dev);
 }
 #else
 #define hdmi_codec_prepare NULL
@@ -1922,7 +1908,6 @@ static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
 				unsigned char *chmap, int prepared)
 {
-	struct hdac_ext_device *edev = to_ehdac_device(hdev);
 	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
 	struct hdac_hdmi_port *port;
@@ -1938,7 +1923,7 @@ static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
 	memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
 	list_for_each_entry(port, &pcm->port_list, head)
 		if (prepared)
-			hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
+			hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 	mutex_unlock(&pcm->lock);
 }
 
@@ -1987,10 +1972,9 @@ static struct hdac_hdmi_drv_data intel_drv_data  = {
 	.vendor_nid = INTEL_VENDOR_NID,
 };
 
-static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
+static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
 {
-	struct hdac_device *hdev = &edev->hdev;
-	struct hdac_hdmi_priv *hdmi_priv;
+	struct hdac_hdmi_priv *hdmi_priv = NULL;
 	struct snd_soc_dai_driver *hdmi_dais = NULL;
 	struct hdac_ext_link *hlink = NULL;
 	int num_dais = 0;
@@ -1999,24 +1983,24 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
 	const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
 
 	/* hold the ref while we probe */
-	hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdev.dev));
+	hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
 	if (!hlink) {
-		dev_err(&edev->hdev.dev, "hdac link not found\n");
+		dev_err(&hdev->dev, "hdac link not found\n");
 		return -EIO;
 	}
 
-	snd_hdac_ext_bus_link_get(edev->ebus, hlink);
+	snd_hdac_ext_bus_link_get(hdev->bus, hlink);
 
 	hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
 	if (hdmi_priv == NULL)
 		return -ENOMEM;
 
-	edev->private_data = hdmi_priv;
 	snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
 	hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
 	hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
 	hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
 	hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
+	hdmi_priv->hdev = hdev;
 
 	if (!hdac_id)
 		return -ENODEV;
@@ -2027,7 +2011,7 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
 	else
 		hdmi_priv->drv_data = &intel_drv_data;
 
-	dev_set_drvdata(&hdev->dev, edev);
+	dev_set_drvdata(&hdev->dev, hdmi_priv);
 
 	INIT_LIST_HEAD(&hdmi_priv->pin_list);
 	INIT_LIST_HEAD(&hdmi_priv->cvt_list);
@@ -2038,15 +2022,15 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
 	 * Turned off in the runtime_suspend during the first explicit
 	 * pm_runtime_suspend call.
 	 */
-	ret = snd_hdac_display_power(edev->hdev.bus, true);
+	ret = snd_hdac_display_power(hdev->bus, true);
 	if (ret < 0) {
-		dev_err(&edev->hdev.dev,
+		dev_err(&hdev->dev,
 			"Cannot turn on display power on i915 err: %d\n",
 			ret);
 		return ret;
 	}
 
-	ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais);
+	ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
 	if (ret < 0) {
 		dev_err(&hdev->dev,
 			"Failed in parse and map nid with err: %d\n", ret);
@@ -2058,14 +2042,14 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
 	ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
 					hdmi_dais, num_dais);
 
-	snd_hdac_ext_bus_link_put(edev->ebus, hlink);
+	snd_hdac_ext_bus_link_put(hdev->bus, hlink);
 
 	return ret;
 }
 
-static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
+static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
 {
-	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdev);
+	struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 	struct hdac_hdmi_pin *pin, *pin_next;
 	struct hdac_hdmi_cvt *cvt, *cvt_next;
 	struct hdac_hdmi_pcm *pcm, *pcm_next;
@@ -2105,10 +2089,8 @@ static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
 #ifdef CONFIG_PM
 static int hdac_hdmi_runtime_suspend(struct device *dev)
 {
-	struct hdac_ext_device *edev = to_hda_ext_device(dev);
-	struct hdac_device *hdev = &edev->hdev;
+	struct hdac_device *hdev = dev_to_hdac_dev(dev);
 	struct hdac_bus *bus = hdev->bus;
-	struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
 	struct hdac_ext_link *hlink = NULL;
 	int err;
 
@@ -2129,27 +2111,25 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
 							AC_PWRST_D3);
 	err = snd_hdac_display_power(bus, false);
 	if (err < 0) {
-		dev_err(bus->dev, "Cannot turn on display power on i915\n");
+		dev_err(dev, "Cannot turn on display power on i915\n");
 		return err;
 	}
 
-	hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
+	hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
 	if (!hlink) {
 		dev_err(dev, "hdac link not found\n");
 		return -EIO;
 	}
 
-	snd_hdac_ext_bus_link_put(ebus, hlink);
+	snd_hdac_ext_bus_link_put(bus, hlink);
 
 	return 0;
 }
 
 static int hdac_hdmi_runtime_resume(struct device *dev)
 {
-	struct hdac_ext_device *edev = to_hda_ext_device(dev);
-	struct hdac_device *hdev = &edev->hdev;
+	struct hdac_device *hdev = dev_to_hdac_dev(dev);
 	struct hdac_bus *bus = hdev->bus;
-	struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
 	struct hdac_ext_link *hlink = NULL;
 	int err;
 
@@ -2159,22 +2139,22 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
 	if (!bus)
 		return 0;
 
-	hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
+	hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
 	if (!hlink) {
 		dev_err(dev, "hdac link not found\n");
 		return -EIO;
 	}
 
-	snd_hdac_ext_bus_link_get(ebus, hlink);
+	snd_hdac_ext_bus_link_get(bus, hlink);
 
 	err = snd_hdac_display_power(bus, true);
 	if (err < 0) {
-		dev_err(bus->dev, "Cannot turn on display power on i915\n");
+		dev_err(dev, "Cannot turn on display power on i915\n");
 		return err;
 	}
 
-	hdac_hdmi_skl_enable_all_pins(&edev->hdev);
-	hdac_hdmi_skl_enable_dp12(&edev->hdev);
+	hdac_hdmi_skl_enable_all_pins(hdev);
+	hdac_hdmi_skl_enable_dp12(hdev);
 
 	/* Power up afg */
 	snd_hdac_codec_read(hdev, hdev->afg, 0,	AC_VERB_SET_POWER_STATE,
@@ -2206,14 +2186,12 @@ static const struct hda_device_id hdmi_list[] = {
 
 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
 
-static struct hdac_ext_driver hdmi_driver = {
-	. hdac = {
-		.driver = {
-			.name   = "HDMI HDA Codec",
-			.pm = &hdac_hdmi_pm,
-		},
-		.id_table       = hdmi_list,
+static struct hdac_driver hdmi_driver = {
+	.driver = {
+		.name   = "HDMI HDA Codec",
+		.pm = &hdac_hdmi_pm,
 	},
+	.id_table       = hdmi_list,
 	.probe          = hdac_hdmi_dev_probe,
 	.remove         = hdac_hdmi_dev_remove,
 };
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index d5f9c30eba32..8bfb8b0fa3d5 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -33,8 +33,7 @@
 static int skl_alloc_dma_buf(struct device *dev,
 		struct snd_dma_buffer *dmab, size_t size)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 
 	if (!bus)
 		return -ENODEV;
@@ -44,8 +43,7 @@ static int skl_alloc_dma_buf(struct device *dev,
 
 static int skl_free_dma_buf(struct device *dev, struct snd_dma_buffer *dmab)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 
 	if (!bus)
 		return -ENODEV;
@@ -89,8 +87,7 @@ void skl_dsp_enable_notification(struct skl_sst *ctx, bool enable)
 static int skl_dsp_setup_spib(struct device *dev, unsigned int size,
 				int stream_tag, int enable)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	struct hdac_stream *stream = snd_hdac_get_stream(bus,
 			SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
 	struct hdac_ext_stream *estream;
@@ -100,10 +97,10 @@ static int skl_dsp_setup_spib(struct device *dev, unsigned int size,
 
 	estream = stream_to_hdac_ext_stream(stream);
 	/* enable/disable SPIB for this hdac stream */
-	snd_hdac_ext_stream_spbcap_enable(ebus, enable, stream->index);
+	snd_hdac_ext_stream_spbcap_enable(bus, enable, stream->index);
 
 	/* set the spib value */
-	snd_hdac_ext_stream_set_spib(ebus, estream, size);
+	snd_hdac_ext_stream_set_spib(bus, estream, size);
 
 	return 0;
 }
@@ -111,8 +108,7 @@ static int skl_dsp_setup_spib(struct device *dev, unsigned int size,
 static int skl_dsp_prepare(struct device *dev, unsigned int format,
 			unsigned int size, struct snd_dma_buffer *dmab)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	struct hdac_ext_stream *estream;
 	struct hdac_stream *stream;
 	struct snd_pcm_substream substream;
@@ -124,7 +120,7 @@ static int skl_dsp_prepare(struct device *dev, unsigned int format,
 	memset(&substream, 0, sizeof(substream));
 	substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
 
-	estream = snd_hdac_ext_stream_assign(ebus, &substream,
+	estream = snd_hdac_ext_stream_assign(bus, &substream,
 					HDAC_EXT_STREAM_TYPE_HOST);
 	if (!estream)
 		return -ENODEV;
@@ -143,9 +139,8 @@ static int skl_dsp_prepare(struct device *dev, unsigned int format,
 
 static int skl_dsp_trigger(struct device *dev, bool start, int stream_tag)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	struct hdac_stream *stream;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 
 	if (!bus)
 		return -ENODEV;
@@ -163,10 +158,9 @@ static int skl_dsp_trigger(struct device *dev, bool start, int stream_tag)
 static int skl_dsp_cleanup(struct device *dev,
 		struct snd_dma_buffer *dmab, int stream_tag)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	struct hdac_stream *stream;
 	struct hdac_ext_stream *estream;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 
 	if (!bus)
 		return -ENODEV;
@@ -270,8 +264,7 @@ const struct skl_dsp_ops *skl_get_dsp_ops(int pci_id)
 int skl_init_dsp(struct skl *skl)
 {
 	void __iomem *mmio_base;
-	struct hdac_ext_bus *ebus = &skl->ebus;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct skl_dsp_loader_ops loader_ops;
 	int irq = bus->irq;
 	const struct skl_dsp_ops *ops;
@@ -279,8 +272,8 @@ int skl_init_dsp(struct skl *skl)
 	int ret;
 
 	/* enable ppcap interrupt */
-	snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
-	snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
+	snd_hdac_ext_bus_ppcap_enable(bus, true);
+	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
 
 	/* read the BAR of the ADSP MMIO */
 	mmio_base = pci_ioremap_bar(skl->pci, 4);
@@ -335,12 +328,11 @@ unmap_mmio:
 
 int skl_free_dsp(struct skl *skl)
 {
-	struct hdac_ext_bus *ebus = &skl->ebus;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct skl_sst *ctx = skl->skl_sst;
 
 	/* disable  ppcap interrupt */
-	snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
+	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
 
 	ctx->dsp_ops->cleanup(bus->dev, ctx);
 
@@ -383,10 +375,11 @@ int skl_suspend_late_dsp(struct skl *skl)
 int skl_suspend_dsp(struct skl *skl)
 {
 	struct skl_sst *ctx = skl->skl_sst;
+	struct hdac_bus *bus = skl_to_bus(skl);
 	int ret;
 
 	/* if ppcap is not supported return 0 */
-	if (!skl->ebus.bus.ppcap)
+	if (!bus->ppcap)
 		return 0;
 
 	ret = skl_dsp_sleep(ctx->dsp);
@@ -394,8 +387,8 @@ int skl_suspend_dsp(struct skl *skl)
 		return ret;
 
 	/* disable ppcap interrupt */
-	snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
-	snd_hdac_ext_bus_ppcap_enable(&skl->ebus, false);
+	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
+	snd_hdac_ext_bus_ppcap_enable(bus, false);
 
 	return 0;
 }
@@ -403,15 +396,16 @@ int skl_suspend_dsp(struct skl *skl)
 int skl_resume_dsp(struct skl *skl)
 {
 	struct skl_sst *ctx = skl->skl_sst;
+	struct hdac_bus *bus = skl_to_bus(skl);
 	int ret;
 
 	/* if ppcap is not supported return 0 */
-	if (!skl->ebus.bus.ppcap)
+	if (!bus->ppcap)
 		return 0;
 
 	/* enable ppcap interrupt */
-	snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
-	snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
+	snd_hdac_ext_bus_ppcap_enable(bus, true);
+	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
 
 	/* check if DSP 1st boot is done */
 	if (skl->skl_sst->is_first_boot == true)
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c
index b9b140275be0..01a050cf8775 100644
--- a/sound/soc/intel/skylake/skl-nhlt.c
+++ b/sound/soc/intel/skylake/skl-nhlt.c
@@ -141,7 +141,7 @@ struct nhlt_specific_cfg
 {
 	struct nhlt_fmt *fmt;
 	struct nhlt_endpoint *epnt;
-	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct device *dev = bus->dev;
 	struct nhlt_specific_cfg *sp_config;
 	struct nhlt_acpi_table *nhlt = skl->nhlt;
@@ -228,7 +228,7 @@ static void skl_nhlt_trim_space(char *trim)
 int skl_nhlt_update_topology_bin(struct skl *skl)
 {
 	struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
-	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct device *dev = bus->dev;
 
 	dev_dbg(dev, "oem_id %.6s, oem_table_id %8s oem_revision %d\n",
@@ -248,8 +248,8 @@ static ssize_t skl_nhlt_platform_id_show(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct skl *skl = bus_to_skl(bus);
 	struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
 	char platform_id[32];
 
diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index afa86b9e4dcf..d7fc3b2d3e68 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -67,16 +67,15 @@ struct hdac_ext_stream *get_hdac_ext_stream(struct snd_pcm_substream *substream)
 	return substream->runtime->private_data;
 }
 
-static struct hdac_ext_bus *get_bus_ctx(struct snd_pcm_substream *substream)
+static struct hdac_bus *get_bus_ctx(struct snd_pcm_substream *substream)
 {
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
 	struct hdac_stream *hstream = hdac_stream(stream);
 	struct hdac_bus *bus = hstream->bus;
-
-	return hbus_to_ebus(bus);
+	return bus;
 }
 
-static int skl_substream_alloc_pages(struct hdac_ext_bus *ebus,
+static int skl_substream_alloc_pages(struct hdac_bus *bus,
 				 struct snd_pcm_substream *substream,
 				 size_t size)
 {
@@ -95,7 +94,7 @@ static int skl_substream_free_pages(struct hdac_bus *bus,
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus,
+static void skl_set_pcm_constrains(struct hdac_bus *bus,
 				 struct snd_pcm_runtime *runtime)
 {
 	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
@@ -105,9 +104,9 @@ static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus,
 				     20, 178000000);
 }
 
-static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *ebus)
+static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_bus *bus)
 {
-	if ((ebus_to_hbus(ebus))->ppcap)
+	if (bus->ppcap)
 		return HDAC_EXT_STREAM_TYPE_HOST;
 	else
 		return HDAC_EXT_STREAM_TYPE_COUPLED;
@@ -123,9 +122,9 @@ static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *e
 static void skl_set_suspend_active(struct snd_pcm_substream *substream,
 					 struct snd_soc_dai *dai, bool enable)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct snd_soc_dapm_widget *w;
-	struct skl *skl = ebus_to_skl(ebus);
+	struct skl *skl = bus_to_skl(bus);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		w = dai->playback_widget;
@@ -140,8 +139,7 @@ static void skl_set_suspend_active(struct snd_pcm_substream *substream,
 
 int skl_pcm_host_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	unsigned int format_val;
 	struct hdac_stream *hstream;
 	struct hdac_ext_stream *stream;
@@ -153,7 +151,7 @@ int skl_pcm_host_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 		return -EINVAL;
 
 	stream = stream_to_hdac_ext_stream(hstream);
-	snd_hdac_ext_stream_decouple(ebus, stream, true);
+	snd_hdac_ext_stream_decouple(bus, stream, true);
 
 	format_val = snd_hdac_calc_stream_format(params->s_freq,
 			params->ch, params->format, params->host_bps, 0);
@@ -177,8 +175,7 @@ int skl_pcm_host_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 
 int skl_pcm_link_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 	unsigned int format_val;
 	struct hdac_stream *hstream;
 	struct hdac_ext_stream *stream;
@@ -190,7 +187,7 @@ int skl_pcm_link_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 		return -EINVAL;
 
 	stream = stream_to_hdac_ext_stream(hstream);
-	snd_hdac_ext_stream_decouple(ebus, stream, true);
+	snd_hdac_ext_stream_decouple(bus, stream, true);
 	format_val = snd_hdac_calc_stream_format(params->s_freq, params->ch,
 					params->format, params->link_bps, 0);
 
@@ -201,7 +198,7 @@ int skl_pcm_link_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 
 	snd_hdac_ext_link_stream_setup(stream, format_val);
 
-	list_for_each_entry(link, &ebus->hlink_list, list) {
+	list_for_each_entry(link, &bus->hlink_list, list) {
 		if (link->index == params->link_index)
 			snd_hdac_ext_link_set_stream_id(link,
 					hstream->stream_tag);
@@ -215,7 +212,7 @@ int skl_pcm_link_dma_prepare(struct device *dev, struct skl_pipe_params *params)
 static int skl_pcm_open(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct hdac_ext_stream *stream;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct skl_dma_params *dma_params;
@@ -224,12 +221,12 @@ static int skl_pcm_open(struct snd_pcm_substream *substream,
 
 	dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
 
-	stream = snd_hdac_ext_stream_assign(ebus, substream,
-					skl_get_host_stream_type(ebus));
+	stream = snd_hdac_ext_stream_assign(bus, substream,
+					skl_get_host_stream_type(bus));
 	if (stream == NULL)
 		return -EBUSY;
 
-	skl_set_pcm_constrains(ebus, runtime);
+	skl_set_pcm_constrains(bus, runtime);
 
 	/*
 	 * disable WALLCLOCK timestamps for capture streams
@@ -301,7 +298,7 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params,
 				struct snd_soc_dai *dai)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct skl_pipe_params p_params = {0};
@@ -309,7 +306,7 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
 	int ret, dma_id;
 
 	dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
-	ret = skl_substream_alloc_pages(ebus, substream,
+	ret = skl_substream_alloc_pages(bus, substream,
 					  params_buffer_bytes(params));
 	if (ret < 0)
 		return ret;
@@ -343,14 +340,14 @@ static void skl_pcm_close(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct skl_dma_params *dma_params = NULL;
-	struct skl *skl = ebus_to_skl(ebus);
+	struct skl *skl = bus_to_skl(bus);
 	struct skl_module_cfg *mconfig;
 
 	dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
 
-	snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus));
+	snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(bus));
 
 	dma_params = snd_soc_dai_get_dma_data(dai, substream);
 	/*
@@ -380,7 +377,7 @@ static void skl_pcm_close(struct snd_pcm_substream *substream,
 static int skl_pcm_hw_free(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
 	struct skl *skl = get_skl_ctx(dai->dev);
 	struct skl_module_cfg *mconfig;
@@ -400,7 +397,7 @@ static int skl_pcm_hw_free(struct snd_pcm_substream *substream,
 	snd_hdac_stream_cleanup(hdac_stream(stream));
 	hdac_stream(stream)->prepared = 0;
 
-	return skl_substream_free_pages(ebus_to_hbus(ebus), substream);
+	return skl_substream_free_pages(bus, substream);
 }
 
 static int skl_be_hw_params(struct snd_pcm_substream *substream,
@@ -420,8 +417,7 @@ static int skl_be_hw_params(struct snd_pcm_substream *substream,
 static int skl_decoupled_trigger(struct snd_pcm_substream *substream,
 		int cmd)
 {
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 	struct hdac_ext_stream *stream;
 	int start;
 	unsigned long cookie;
@@ -470,7 +466,7 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
 	struct skl *skl = get_skl_ctx(dai->dev);
 	struct skl_sst *ctx = skl->skl_sst;
 	struct skl_module_cfg *mconfig;
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
 	struct snd_soc_dapm_widget *w;
 	int ret;
@@ -492,9 +488,9 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
 			 * dpib & lpib position to resume before starting the
 			 * DMA
 			 */
-			snd_hdac_ext_stream_drsm_enable(ebus, true,
+			snd_hdac_ext_stream_drsm_enable(bus, true,
 						hdac_stream(stream)->index);
-			snd_hdac_ext_stream_set_dpibr(ebus, stream,
+			snd_hdac_ext_stream_set_dpibr(bus, stream,
 							stream->lpib);
 			snd_hdac_ext_stream_set_lpib(stream, stream->lpib);
 		}
@@ -528,14 +524,14 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
 		ret = skl_decoupled_trigger(substream, cmd);
 		if ((cmd == SNDRV_PCM_TRIGGER_SUSPEND) && !w->ignore_suspend) {
 			/* save the dpib and lpib positions */
-			stream->dpib = readl(ebus->bus.remap_addr +
+			stream->dpib = readl(bus->remap_addr +
 					AZX_REG_VS_SDXDPIB_XBASE +
 					(AZX_REG_VS_SDXDPIB_XINTERVAL *
 					hdac_stream(stream)->index));
 
 			stream->lpib = snd_hdac_stream_get_pos_lpib(
 							hdac_stream(stream));
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
+			snd_hdac_ext_stream_decouple(bus, stream, false);
 		}
 		break;
 
@@ -546,11 +542,12 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
 	return 0;
 }
 
+
 static int skl_link_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params,
 				struct snd_soc_dai *dai)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct hdac_ext_stream *link_dev;
 	struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
@@ -558,14 +555,14 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream,
 	struct hdac_ext_link *link;
 	int stream_tag;
 
-	link_dev = snd_hdac_ext_stream_assign(ebus, substream,
+	link_dev = snd_hdac_ext_stream_assign(bus, substream,
 					HDAC_EXT_STREAM_TYPE_LINK);
 	if (!link_dev)
 		return -EBUSY;
 
 	snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev);
 
-	link = snd_hdac_ext_bus_get_link(ebus, codec_dai->component->name);
+	link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
 	if (!link)
 		return -EINVAL;
 
@@ -610,7 +607,7 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
 {
 	struct hdac_ext_stream *link_dev =
 				snd_soc_dai_get_dma_data(dai, substream);
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
 
 	dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
@@ -626,7 +623,7 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_TRIGGER_STOP:
 		snd_hdac_ext_link_stream_clear(link_dev);
 		if (cmd == SNDRV_PCM_TRIGGER_SUSPEND)
-			snd_hdac_ext_stream_decouple(ebus, stream, false);
+			snd_hdac_ext_stream_decouple(bus, stream, false);
 		break;
 
 	default:
@@ -638,7 +635,7 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
 static int skl_link_hw_free(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
 	struct hdac_ext_stream *link_dev =
 				snd_soc_dai_get_dma_data(dai, substream);
@@ -648,7 +645,7 @@ static int skl_link_hw_free(struct snd_pcm_substream *substream,
 
 	link_dev->link_prepared = 0;
 
-	link = snd_hdac_ext_bus_get_link(ebus, rtd->codec_dai->component->name);
+	link = snd_hdac_ext_bus_get_link(bus, rtd->codec_dai->component->name);
 	if (!link)
 		return -EINVAL;
 
@@ -1041,8 +1038,7 @@ static int skl_platform_open(struct snd_pcm_substream *substream)
 static int skl_coupled_trigger(struct snd_pcm_substream *substream,
 					int cmd)
 {
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 	struct hdac_ext_stream *stream;
 	struct snd_pcm_substream *s;
 	bool start;
@@ -1115,9 +1111,9 @@ static int skl_coupled_trigger(struct snd_pcm_substream *substream,
 static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
 					int cmd)
 {
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 
-	if (!(ebus_to_hbus(ebus))->ppcap)
+	if (!bus->ppcap)
 		return skl_coupled_trigger(substream, cmd);
 
 	return 0;
@@ -1127,7 +1123,7 @@ static snd_pcm_uframes_t skl_platform_pcm_pointer
 			(struct snd_pcm_substream *substream)
 {
 	struct hdac_ext_stream *hstream = get_hdac_ext_stream(substream);
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_bus *bus = get_bus_ctx(substream);
 	unsigned int pos;
 
 	/*
@@ -1152,12 +1148,12 @@ static snd_pcm_uframes_t skl_platform_pcm_pointer
 	 */
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		pos = readl(ebus->bus.remap_addr + AZX_REG_VS_SDXDPIB_XBASE +
+		pos = readl(bus->remap_addr + AZX_REG_VS_SDXDPIB_XBASE +
 				(AZX_REG_VS_SDXDPIB_XINTERVAL *
 				hdac_stream(hstream)->index));
 	} else {
 		udelay(20);
-		readl(ebus->bus.remap_addr +
+		readl(bus->remap_addr +
 				AZX_REG_VS_SDXDPIB_XBASE +
 				(AZX_REG_VS_SDXDPIB_XINTERVAL *
 				 hdac_stream(hstream)->index));
@@ -1242,11 +1238,11 @@ static void skl_pcm_free(struct snd_pcm *pcm)
 static int skl_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_dai *dai = rtd->cpu_dai;
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct hdac_bus *bus = dev_get_drvdata(dai->dev);
 	struct snd_pcm *pcm = rtd->pcm;
 	unsigned int size;
 	int retval = 0;
-	struct skl *skl = ebus_to_skl(ebus);
+	struct skl *skl = bus_to_skl(bus);
 
 	if (dai->driver->playback.channels_min ||
 		dai->driver->capture.channels_min) {
@@ -1356,19 +1352,19 @@ static int skl_populate_modules(struct skl *skl)
 
 static int skl_platform_soc_probe(struct snd_soc_component *component)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(component->dev);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(component->dev);
+	struct skl *skl = bus_to_skl(bus);
 	const struct skl_dsp_ops *ops;
 	int ret;
 
 	pm_runtime_get_sync(component->dev);
-	if ((ebus_to_hbus(ebus))->ppcap) {
+	if (bus->ppcap) {
 		skl->component = component;
 
 		/* init debugfs */
 		skl->debugfs = skl_debugfs_init(skl);
 
-		ret = skl_tplg_init(component, ebus);
+		ret = skl_tplg_init(component, bus);
 		if (ret < 0) {
 			dev_err(component->dev, "Failed to init topology!\n");
 			return ret;
@@ -1425,10 +1421,10 @@ static const struct snd_soc_component_driver skl_component  = {
 int skl_platform_register(struct device *dev)
 {
 	int ret;
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct skl *skl = ebus_to_skl(ebus);
 	struct snd_soc_dai_driver *dais;
 	int num_dais = ARRAY_SIZE(skl_platform_dai);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
+	struct skl *skl = bus_to_skl(bus);
 
 	INIT_LIST_HEAD(&skl->ppl_list);
 	INIT_LIST_HEAD(&skl->bind_list);
@@ -1464,8 +1460,8 @@ err:
 
 int skl_platform_unregister(struct device *dev)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
+	struct skl *skl = bus_to_skl(bus);
 	struct skl_module_deferred_bind *modules, *tmp;
 
 	if (!list_empty(&skl->bind_list)) {
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index fcdc716754b6..abfdb67c05cc 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -934,7 +934,7 @@ static int skl_tplg_find_moduleid_from_uuid(struct skl *skl,
 	struct soc_bytes_ext *sb = (void *) k->private_value;
 	struct skl_algo_data *bc = (struct skl_algo_data *)sb->dobj.private;
 	struct skl_kpb_params *uuid_params, *params;
-	struct hdac_bus *bus = ebus_to_hbus(skl_to_ebus(skl));
+	struct hdac_bus *bus = skl_to_bus(skl);
 	int i, size, module_id;
 
 	if (bc->set_params == SKL_PARAM_BIND && bc->max) {
@@ -3029,9 +3029,8 @@ static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
 				struct snd_soc_tplg_dapm_widget *tplg_w)
 {
 	int ret;
-	struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
-	struct skl *skl = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = snd_soc_component_get_drvdata(cmpnt);
+	struct skl *skl = bus_to_skl(bus);
 	struct skl_module_cfg *mconfig;
 
 	if (!tplg_w->priv.size)
@@ -3137,8 +3136,7 @@ static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
 	struct soc_bytes_ext *sb;
 	struct snd_soc_tplg_bytes_control *tplg_bc;
 	struct snd_soc_tplg_enum_control *tplg_ec;
-	struct hdac_ext_bus *ebus  = snd_soc_component_get_drvdata(cmpnt);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus  = snd_soc_component_get_drvdata(cmpnt);
 	struct soc_enum *se;
 
 	switch (hdr->ops.info) {
@@ -3622,9 +3620,8 @@ static int skl_tplg_get_manifest_data(struct snd_soc_tplg_manifest *manifest,
 static int skl_manifest_load(struct snd_soc_component *cmpnt,
 				struct snd_soc_tplg_manifest *manifest)
 {
-	struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = snd_soc_component_get_drvdata(cmpnt);
+	struct skl *skl = bus_to_skl(bus);
 
 	/* proceed only if we have private data defined */
 	if (manifest->priv.size == 0)
@@ -3713,12 +3710,11 @@ static void skl_tplg_set_pipe_type(struct skl *skl, struct skl_pipe *pipe)
 /*
  * SKL topology init routine
  */
-int skl_tplg_init(struct snd_soc_component *component, struct hdac_ext_bus *ebus)
+int skl_tplg_init(struct snd_soc_component *component, struct hdac_bus *bus)
 {
 	int ret;
 	const struct firmware *fw;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct skl *skl = bus_to_skl(bus);
 	struct skl_pipeline *ppl;
 
 	ret = request_firmware(&fw, skl->tplg_name, bus->dev);
diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h
index 6d7e0569695f..daeb6d2bb7fc 100644
--- a/sound/soc/intel/skylake/skl-topology.h
+++ b/sound/soc/intel/skylake/skl-topology.h
@@ -458,9 +458,9 @@ enum skl_channel {
 
 static inline struct skl *get_skl_ctx(struct device *dev)
 {
-	struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
+	struct hdac_bus *bus = dev_get_drvdata(dev);
 
-	return ebus_to_skl(ebus);
+	return bus_to_skl(bus);
 }
 
 int skl_tplg_be_update_params(struct snd_soc_dai *dai,
@@ -470,7 +470,7 @@ int skl_dsp_set_dma_control(struct skl_sst *ctx, u32 *caps,
 void skl_tplg_set_be_dmic_config(struct snd_soc_dai *dai,
 	struct skl_pipe_params *params, int stream);
 int skl_tplg_init(struct snd_soc_component *component,
-				struct hdac_ext_bus *ebus);
+				struct hdac_bus *ebus);
 struct skl_module_cfg *skl_tplg_fe_get_cpr_module(
 		struct snd_soc_dai *dai, int stream);
 int skl_tplg_update_pipe_params(struct device *dev,
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index f0d9793f872a..00e051467a40 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -54,7 +54,7 @@ static void skl_update_pci_byte(struct pci_dev *pci, unsigned int reg,
 
 static void skl_init_pci(struct skl *skl)
 {
-	struct hdac_ext_bus *ebus = &skl->ebus;
+	struct hdac_bus *bus = skl_to_bus(skl);
 
 	/*
 	 * Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
@@ -63,7 +63,7 @@ static void skl_init_pci(struct skl *skl)
 	 * codecs.
 	 * The PCI register TCSEL is defined in the Intel manuals.
 	 */
-	dev_dbg(ebus_to_hbus(ebus)->dev, "Clearing TCSEL\n");
+	dev_dbg(bus->dev, "Clearing TCSEL\n");
 	skl_update_pci_byte(skl->pci, AZX_PCIREG_TCSEL, 0x07, 0);
 }
 
@@ -103,8 +103,7 @@ static void skl_enable_miscbdcge(struct device *dev, bool enable)
 static void skl_clock_power_gating(struct device *dev, bool enable)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
 	u32 val;
 
 	/* Update PDCGE bit of CGCTL register */
@@ -127,7 +126,6 @@ static void skl_clock_power_gating(struct device *dev, bool enable)
  */
 static int skl_init_chip(struct hdac_bus *bus, bool full_reset)
 {
-	struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
 	struct hdac_ext_link *hlink;
 	int ret;
 
@@ -135,7 +133,7 @@ static int skl_init_chip(struct hdac_bus *bus, bool full_reset)
 	ret = snd_hdac_bus_init_chip(bus, full_reset);
 
 	/* Reset stream-to-link mapping */
-	list_for_each_entry(hlink, &ebus->hlink_list, list)
+	list_for_each_entry(hlink, &bus->hlink_list, list)
 		bus->io_ops->reg_writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
 
 	skl_enable_miscbdcge(bus->dev, true);
@@ -146,8 +144,7 @@ static int skl_init_chip(struct hdac_bus *bus, bool full_reset)
 void skl_update_d0i3c(struct device *dev, bool enable)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
 	u8 reg;
 	int timeout = 50;
 
@@ -197,8 +194,7 @@ static void skl_stream_update(struct hdac_bus *bus, struct hdac_stream *hstr)
 
 static irqreturn_t skl_interrupt(int irq, void *dev_id)
 {
-	struct hdac_ext_bus *ebus = dev_id;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_id;
 	u32 status;
 
 	if (!pm_runtime_active(bus->dev))
@@ -227,8 +223,7 @@ static irqreturn_t skl_interrupt(int irq, void *dev_id)
 
 static irqreturn_t skl_threaded_handler(int irq, void *dev_id)
 {
-	struct hdac_ext_bus *ebus = dev_id;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = dev_id;
 	u32 status;
 
 	status = snd_hdac_chip_readl(bus, INTSTS);
@@ -238,16 +233,15 @@ static irqreturn_t skl_threaded_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect)
+static int skl_acquire_irq(struct hdac_bus *bus, int do_disconnect)
 {
-	struct skl *skl = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct skl *skl = bus_to_skl(bus);
 	int ret;
 
 	ret = request_threaded_irq(skl->pci->irq, skl_interrupt,
 			skl_threaded_handler,
 			IRQF_SHARED,
-			KBUILD_MODNAME, ebus);
+			KBUILD_MODNAME, bus);
 	if (ret) {
 		dev_err(bus->dev,
 			"unable to grab IRQ %d, disabling device\n",
@@ -264,21 +258,20 @@ static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect)
 static int skl_suspend_late(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct skl *skl = bus_to_skl(bus);
 
 	return skl_suspend_late_dsp(skl);
 }
 
 #ifdef CONFIG_PM
-static int _skl_suspend(struct hdac_ext_bus *ebus)
+static int _skl_suspend(struct hdac_bus *bus)
 {
-	struct skl *skl = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct skl *skl = bus_to_skl(bus);
 	struct pci_dev *pci = to_pci_dev(bus->dev);
 	int ret;
 
-	snd_hdac_ext_bus_link_power_down_all(ebus);
+	snd_hdac_ext_bus_link_power_down_all(bus);
 
 	ret = skl_suspend_dsp(skl);
 	if (ret < 0)
@@ -295,10 +288,9 @@ static int _skl_suspend(struct hdac_ext_bus *ebus)
 	return 0;
 }
 
-static int _skl_resume(struct hdac_ext_bus *ebus)
+static int _skl_resume(struct hdac_bus *bus)
 {
-	struct skl *skl = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct skl *skl = bus_to_skl(bus);
 
 	skl_init_pci(skl);
 	skl_init_chip(bus, true);
@@ -314,9 +306,8 @@ static int _skl_resume(struct hdac_ext_bus *ebus)
 static int skl_suspend(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct skl *skl  = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct skl *skl  = bus_to_skl(bus);
 	int ret = 0;
 
 	/*
@@ -325,15 +316,15 @@ static int skl_suspend(struct device *dev)
 	 */
 	if (skl->supend_active) {
 		/* turn off the links and stop the CORB/RIRB DMA if it is On */
-		snd_hdac_ext_bus_link_power_down_all(ebus);
+		snd_hdac_ext_bus_link_power_down_all(bus);
 
-		if (ebus->cmd_dma_state)
-			snd_hdac_bus_stop_cmd_io(&ebus->bus);
+		if (bus->cmd_dma_state)
+			snd_hdac_bus_stop_cmd_io(bus);
 
 		enable_irq_wake(bus->irq);
 		pci_save_state(pci);
 	} else {
-		ret = _skl_suspend(ebus);
+		ret = _skl_suspend(bus);
 		if (ret < 0)
 			return ret;
 		skl->skl_sst->fw_loaded = false;
@@ -352,9 +343,8 @@ static int skl_suspend(struct device *dev)
 static int skl_resume(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct skl *skl  = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct skl *skl  = bus_to_skl(bus);
 	struct hdac_ext_link *hlink = NULL;
 	int ret;
 
@@ -374,32 +364,32 @@ static int skl_resume(struct device *dev)
 	 */
 	if (skl->supend_active) {
 		pci_restore_state(pci);
-		snd_hdac_ext_bus_link_power_up_all(ebus);
+		snd_hdac_ext_bus_link_power_up_all(bus);
 		disable_irq_wake(bus->irq);
 		/*
 		 * turn On the links which are On before active suspend
 		 * and start the CORB/RIRB DMA if On before
 		 * active suspend.
 		 */
-		list_for_each_entry(hlink, &ebus->hlink_list, list) {
+		list_for_each_entry(hlink, &bus->hlink_list, list) {
 			if (hlink->ref_count)
 				snd_hdac_ext_bus_link_power_up(hlink);
 		}
 
-		if (ebus->cmd_dma_state)
-			snd_hdac_bus_init_cmd_io(&ebus->bus);
 		ret = 0;
+		if (bus->cmd_dma_state)
+			snd_hdac_bus_init_cmd_io(bus);
 	} else {
-		ret = _skl_resume(ebus);
+		ret = _skl_resume(bus);
 
 		/* turn off the links which are off before suspend */
-		list_for_each_entry(hlink, &ebus->hlink_list, list) {
+		list_for_each_entry(hlink, &bus->hlink_list, list) {
 			if (!hlink->ref_count)
 				snd_hdac_ext_bus_link_power_down(hlink);
 		}
 
-		if (!ebus->cmd_dma_state)
-			snd_hdac_bus_stop_cmd_io(&ebus->bus);
+		if (!bus->cmd_dma_state)
+			snd_hdac_bus_stop_cmd_io(bus);
 	}
 
 	return ret;
@@ -410,23 +400,21 @@ static int skl_resume(struct device *dev)
 static int skl_runtime_suspend(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
 
 	dev_dbg(bus->dev, "in %s\n", __func__);
 
-	return _skl_suspend(ebus);
+	return _skl_suspend(bus);
 }
 
 static int skl_runtime_resume(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
 
 	dev_dbg(bus->dev, "in %s\n", __func__);
 
-	return _skl_resume(ebus);
+	return _skl_resume(bus);
 }
 #endif /* CONFIG_PM */
 
@@ -439,20 +427,19 @@ static const struct dev_pm_ops skl_pm = {
 /*
  * destructor
  */
-static int skl_free(struct hdac_ext_bus *ebus)
+static int skl_free(struct hdac_bus *bus)
 {
-	struct skl *skl  = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct skl *skl  = bus_to_skl(bus);
 
 	skl->init_done = 0; /* to be sure */
 
-	snd_hdac_ext_stop_streams(ebus);
+	snd_hdac_ext_stop_streams(bus);
 
 	if (bus->irq >= 0)
-		free_irq(bus->irq, (void *)ebus);
+		free_irq(bus->irq, (void *)bus);
 	snd_hdac_bus_free_stream_pages(bus);
-	snd_hdac_stream_free_all(ebus);
-	snd_hdac_link_free_all(ebus);
+	snd_hdac_stream_free_all(bus);
+	snd_hdac_link_free_all(bus);
 
 	if (bus->remap_addr)
 		iounmap(bus->remap_addr);
@@ -460,11 +447,11 @@ static int skl_free(struct hdac_ext_bus *ebus)
 	pci_release_regions(skl->pci);
 	pci_disable_device(skl->pci);
 
-	snd_hdac_ext_bus_exit(ebus);
+	snd_hdac_ext_bus_exit(bus);
 
 	cancel_work_sync(&skl->probe_work);
 	if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
-		snd_hdac_i915_exit(&ebus->bus);
+		snd_hdac_i915_exit(bus);
 
 	return 0;
 }
@@ -488,8 +475,8 @@ static struct skl_ssp_clk skl_ssp_clks[] = {
 
 static int skl_find_machine(struct skl *skl, void *driver_data)
 {
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct snd_soc_acpi_mach *mach = driver_data;
-	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
 	struct skl_machine_pdata *pdata;
 
 	mach = snd_soc_acpi_find_machine(mach);
@@ -510,7 +497,7 @@ static int skl_find_machine(struct skl *skl, void *driver_data)
 
 static int skl_machine_device_register(struct skl *skl)
 {
-	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct snd_soc_acpi_mach *mach = skl->mach;
 	struct platform_device *pdev;
 	int ret;
@@ -544,7 +531,7 @@ static void skl_machine_device_unregister(struct skl *skl)
 
 static int skl_dmic_device_register(struct skl *skl)
 {
-	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct platform_device *pdev;
 	int ret;
 
@@ -643,12 +630,13 @@ static void skl_clock_device_unregister(struct skl *skl)
 /*
  * Probe the given codec address
  */
-static int probe_codec(struct hdac_ext_bus *ebus, int addr)
+static int probe_codec(struct hdac_bus *bus, int addr)
 {
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 	unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
 		(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
 	unsigned int res = -1;
+	struct skl *skl = bus_to_skl(bus);
+	struct hdac_device *hdev;
 
 	mutex_lock(&bus->cmd_mutex);
 	snd_hdac_bus_send_cmd(bus, cmd);
@@ -658,13 +646,16 @@ static int probe_codec(struct hdac_ext_bus *ebus, int addr)
 		return -EIO;
 	dev_dbg(bus->dev, "codec #%d probed OK\n", addr);
 
-	return snd_hdac_ext_bus_device_init(ebus, addr);
+	hdev = devm_kzalloc(&skl->pci->dev, sizeof(*hdev), GFP_KERNEL);
+	if (!hdev)
+		return -ENOMEM;
+
+	return snd_hdac_ext_bus_device_init(bus, addr, hdev);
 }
 
 /* Codec initialization */
-static void skl_codec_create(struct hdac_ext_bus *ebus)
+static void skl_codec_create(struct hdac_bus *bus)
 {
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
 	int c, max_slots;
 
 	max_slots = HDA_MAX_CODECS;
@@ -672,7 +663,7 @@ static void skl_codec_create(struct hdac_ext_bus *ebus)
 	/* First try to probe all given codec slots */
 	for (c = 0; c < max_slots; c++) {
 		if ((bus->codec_mask & (1 << c))) {
-			if (probe_codec(ebus, c) < 0) {
+			if (probe_codec(bus, c) < 0) {
 				/*
 				 * Some BIOSen give you wrong codec addresses
 				 * that don't exist
@@ -722,8 +713,7 @@ static int skl_i915_init(struct hdac_bus *bus)
 static void skl_probe_work(struct work_struct *work)
 {
 	struct skl *skl = container_of(work, struct skl, probe_work);
-	struct hdac_ext_bus *ebus = &skl->ebus;
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = skl_to_bus(skl);
 	struct hdac_ext_link *hlink = NULL;
 	int err;
 
@@ -744,7 +734,7 @@ static void skl_probe_work(struct work_struct *work)
 		dev_info(bus->dev, "no hda codecs found!\n");
 
 	/* create codec instances */
-	skl_codec_create(ebus);
+	skl_codec_create(bus);
 
 	/* register platform dai and controls */
 	err = skl_platform_register(bus->dev);
@@ -773,8 +763,8 @@ static void skl_probe_work(struct work_struct *work)
 	/*
 	 * we are done probing so decrement link counts
 	 */
-	list_for_each_entry(hlink, &ebus->hlink_list, list)
-		snd_hdac_ext_bus_link_put(ebus, hlink);
+	list_for_each_entry(hlink, &bus->hlink_list, list)
+		snd_hdac_ext_bus_link_put(bus, hlink);
 
 	/* configure PM */
 	pm_runtime_put_noidle(bus->dev);
@@ -796,7 +786,7 @@ static int skl_create(struct pci_dev *pci,
 		      struct skl **rskl)
 {
 	struct skl *skl;
-	struct hdac_ext_bus *ebus;
+	struct hdac_bus *bus;
 
 	int err;
 
@@ -811,23 +801,22 @@ static int skl_create(struct pci_dev *pci,
 		pci_disable_device(pci);
 		return -ENOMEM;
 	}
-	ebus = &skl->ebus;
-	snd_hdac_ext_bus_init(ebus, &pci->dev, &bus_core_ops, io_ops);
-	ebus->bus.use_posbuf = 1;
+
+	bus = skl_to_bus(skl);
+	snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops, NULL);
+	bus->use_posbuf = 1;
 	skl->pci = pci;
 	INIT_WORK(&skl->probe_work, skl_probe_work);
-
-	ebus->bus.bdl_pos_adj = 0;
+	bus->bdl_pos_adj = 0;
 
 	*rskl = skl;
 
 	return 0;
 }
 
-static int skl_first_init(struct hdac_ext_bus *ebus)
+static int skl_first_init(struct hdac_bus *bus)
 {
-	struct skl *skl = ebus_to_skl(ebus);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct skl *skl = bus_to_skl(bus);
 	struct pci_dev *pci = skl->pci;
 	int err;
 	unsigned short gcap;
@@ -848,7 +837,7 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
 
 	snd_hdac_bus_parse_capabilities(bus);
 
-	if (skl_acquire_irq(ebus, 0) < 0)
+	if (skl_acquire_irq(bus, 0) < 0)
 		return -EBUSY;
 
 	pci_set_master(pci);
@@ -872,14 +861,14 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
 	if (!pb_streams && !cp_streams)
 		return -EIO;
 
-	ebus->num_streams = cp_streams + pb_streams;
+	bus->num_streams = cp_streams + pb_streams;
 
 	/* initialize streams */
 	snd_hdac_ext_stream_init_all
-		(ebus, 0, cp_streams, SNDRV_PCM_STREAM_CAPTURE);
+		(bus, 0, cp_streams, SNDRV_PCM_STREAM_CAPTURE);
 	start_idx = cp_streams;
 	snd_hdac_ext_stream_init_all
-		(ebus, start_idx, pb_streams, SNDRV_PCM_STREAM_PLAYBACK);
+		(bus, start_idx, pb_streams, SNDRV_PCM_STREAM_PLAYBACK);
 
 	err = snd_hdac_bus_alloc_stream_pages(bus);
 	if (err < 0)
@@ -895,7 +884,6 @@ static int skl_probe(struct pci_dev *pci,
 		     const struct pci_device_id *pci_id)
 {
 	struct skl *skl;
-	struct hdac_ext_bus *ebus = NULL;
 	struct hdac_bus *bus = NULL;
 	int err;
 
@@ -904,10 +892,9 @@ static int skl_probe(struct pci_dev *pci,
 	if (err < 0)
 		return err;
 
-	ebus = &skl->ebus;
-	bus = ebus_to_hbus(ebus);
+	bus = skl_to_bus(skl);
 
-	err = skl_first_init(ebus);
+	err = skl_first_init(bus);
 	if (err < 0)
 		goto out_free;
 
@@ -928,7 +915,7 @@ static int skl_probe(struct pci_dev *pci,
 
 	skl_nhlt_update_topology_bin(skl);
 
-	pci_set_drvdata(skl->pci, ebus);
+	pci_set_drvdata(skl->pci, bus);
 
 	skl_dmic_data.dmic_num = skl_get_dmic_geo(skl);
 
@@ -952,7 +939,7 @@ static int skl_probe(struct pci_dev *pci,
 		skl->skl_sst->clock_power_gating = skl_clock_power_gating;
 	}
 	if (bus->mlcap)
-		snd_hdac_ext_bus_get_ml_capabilities(ebus);
+		snd_hdac_ext_bus_get_ml_capabilities(bus);
 
 	snd_hdac_bus_stop_chip(bus);
 
@@ -972,31 +959,30 @@ out_clk_free:
 out_nhlt_free:
 	skl_nhlt_free(skl->nhlt);
 out_free:
-	skl_free(ebus);
+	skl_free(bus);
 
 	return err;
 }
 
 static void skl_shutdown(struct pci_dev *pci)
 {
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
 	struct hdac_stream *s;
 	struct hdac_ext_stream *stream;
 	struct skl *skl;
 
-	if (ebus == NULL)
+	if (!bus)
 		return;
 
-	skl = ebus_to_skl(ebus);
+	skl = bus_to_skl(bus);
 
 	if (!skl->init_done)
 		return;
 
-	snd_hdac_ext_stop_streams(ebus);
+	snd_hdac_ext_stop_streams(bus);
 	list_for_each_entry(s, &bus->stream_list, list) {
 		stream = stream_to_hdac_ext_stream(s);
-		snd_hdac_ext_stream_decouple(ebus, stream, false);
+		snd_hdac_ext_stream_decouple(bus, stream, false);
 	}
 
 	snd_hdac_bus_stop_chip(bus);
@@ -1004,15 +990,15 @@ static void skl_shutdown(struct pci_dev *pci)
 
 static void skl_remove(struct pci_dev *pci)
 {
-	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct skl *skl = bus_to_skl(bus);
 
 	release_firmware(skl->tplg);
 
 	pm_runtime_get_noresume(&pci->dev);
 
 	/* codec removal, invoke bus_device_remove */
-	snd_hdac_ext_bus_device_remove(ebus);
+	snd_hdac_ext_bus_device_remove(bus);
 
 	skl->debugfs = NULL;
 	skl_platform_unregister(&pci->dev);
@@ -1022,7 +1008,7 @@ static void skl_remove(struct pci_dev *pci)
 	skl_clock_device_unregister(skl);
 	skl_nhlt_remove_sysfs(skl);
 	skl_nhlt_free(skl->nhlt);
-	skl_free(ebus);
+	skl_free(bus);
 	dev_set_drvdata(&pci->dev, NULL);
 }
 
diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h
index 0d5375cbcf6e..78aa8bdcb619 100644
--- a/sound/soc/intel/skylake/skl.h
+++ b/sound/soc/intel/skylake/skl.h
@@ -71,7 +71,7 @@ struct skl_fw_config {
 };
 
 struct skl {
-	struct hdac_ext_bus ebus;
+	struct hdac_bus hbus;
 	struct pci_dev *pci;
 
 	unsigned int init_done:1; /* delayed init status */
@@ -105,9 +105,8 @@ struct skl {
 	struct snd_soc_acpi_mach *mach;
 };
 
-#define skl_to_ebus(s)	(&(s)->ebus)
-#define ebus_to_skl(sbus) \
-	container_of(sbus, struct skl, sbus)
+#define skl_to_bus(s)  (&(s)->hbus)
+#define bus_to_skl(bus) container_of(bus, struct skl, hbus)
 
 /* to pass dai dma data */
 struct skl_dma_params {