Merge tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It's been busy summer weeks and hence lots of changes, partly for a
  few new drivers and partly for a wide range of fixes.

  Here are highlights:

  ALSA Core:
   - Fix rawmidi buffer management, code cleanup / refactoring
   - Fix the SG-buffer page handling with incorrect fallback size
   - Fix the stall at virmidi trigger callback with a large buffer; also
     offloading and code-refactoring along with it
   - Various ALSA sequencer code cleanups

  ASoC:
   - Deploy the standard snd_pcm_stop_xrun() helper in several drivers
   - Support for providing name prefixes to generic component nodes
   - Quite a few fixes for DPCM as it gains a bit wider use and more
     robust testing
   - Generalization of the DIO2125 support to a simple amplifier driver
   - Accessory detection support for the audio graph card
   - DT support for PXA AC'97 devices
   - Quirks for a number of new x86 systems
   - Support for AM Logic Meson, Everest ES7154, Intel systems with
     RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707

  HD-audio:
   - Code refactoring in HD-audio ext codec codes to drop own classes;
     preliminary works for the upcoming legacy codec support
   - Generalized DRM audio component for the upcoming radeon / amdgpu
     support
   - Unification of mic mute-LED and GPIO support for various codecs
   - Further improvement of CA0132 codec support including Recon3D
   - Proper vga_switcheroo handling for AMD i-GPU
   - Update of model list in documentation
   - Fixups for another HP Spectre x360, Conexant codecs, power-save
     blacklist update

  USB-audio:
   - Fix the invalid sample rate setup with external clock
   - Support of UAC3 selector units and processing units
   - Basic UAC3 power-domain support
   - Support for Encore mDSD and Thesycon-based DSD devices
   - Preparation for future complete callback changes

  Firewire:
   - Add support for MOTU Traveler

  Misc:
   - The endianess notation fixes in various drivers
   - Add fall-through comment in lots of drivers
   - Various sparse warning fixes, e.g. about PCM format types"

* tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (529 commits)
  ASoC: adav80x: mark expected switch fall-through
  ASoC: da7219: Add delays to capture path to remove DC offset noise
  ALSA: usb-audio: Mark expected switch fall-through
  ALSA: mixart: Mark expected switch fall-through
  ALSA: opl3: Mark expected switch fall-through
  ALSA: hda/ca0132 - Add exit commands for Recon3D
  ALSA: hda/ca0132 - Change mixer controls for Recon3D
  ALSA: hda/ca0132 - Add Recon3D input and output select commands
  ALSA: hda/ca0132 - Add DSP setup defaults for Recon3D
  ALSA: hda/ca0132 - Add Recon3D startup functions and setup
  ALSA: hda/ca0132 - Add bool variable to enable/disable pci region2 mmio
  ALSA: hda/ca0132 - Add Recon3D pincfg
  ALSA: hda/ca0132 - Add quirk ID and enum for Recon3D
  ALSA: hda/ca0132 - Add alt_functions unsolicited response
  ALSA: hda/ca0132 - Clean up ca0132_init function.
  ALSA: hda/ca0132 - Create mmio gpio function to make code clearer
  ASoC: wm_adsp: Make DSP name configurable by codec driver
  ASoC: wm_adsp: Declare firmware controls from codec driver
  ASoC: max98373: Added software reset register to readable registers
  ASoC: wm_adsp: Correct DSP pointer for preloader control
  ...

9 files changed, 492 insertions, 458 deletions

diff --git a/sound/hda/Kconfig b/sound/hda/Kconfig
index 3129546398d0..2d90e11b3eaa 100644
--- a/sound/hda/Kconfig
+++ b/sound/hda/Kconfig
@@ -5,11 +5,12 @@ config SND_HDA_CORE
 config SND_HDA_DSP_LOADER
 	bool
 
+config SND_HDA_COMPONENT
+	bool
+
 config SND_HDA_I915
 	bool
-	default y
-	depends on DRM_I915
-	depends on SND_HDA_CORE
+	select SND_HDA_COMPONENT
 
 config SND_HDA_EXT_CORE
        tristate
diff --git a/sound/hda/Makefile b/sound/hda/Makefile
index e4e726f2ce98..2160202e2dc1 100644
--- a/sound/hda/Makefile
+++ b/sound/hda/Makefile
@@ -6,6 +6,7 @@ snd-hda-core-objs += trace.o
 CFLAGS_trace.o := -I$(src)
 
 # for sync with i915 gfx driver
+snd-hda-core-$(CONFIG_SND_HDA_COMPONENT) += hdac_component.o
 snd-hda-core-$(CONFIG_SND_HDA_I915) += hdac_i915.o
 
 obj-$(CONFIG_SND_HDA_CORE) += snd-hda-core.o
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/hda/hdac_component.c b/sound/hda/hdac_component.c
new file mode 100644
index 000000000000..6e46a9c73aed
--- /dev/null
+++ b/sound/hda/hdac_component.c
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: GPL-2.0
+// hdac_component.c - routines for sync between HD-A core and DRM driver
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/component.h>
+#include <sound/core.h>
+#include <sound/hdaudio.h>
+#include <sound/hda_component.h>
+#include <sound/hda_register.h>
+
+static void hdac_acomp_release(struct device *dev, void *res)
+{
+}
+
+static struct drm_audio_component *hdac_get_acomp(struct device *dev)
+{
+	return devres_find(dev, hdac_acomp_release, NULL, NULL);
+}
+
+/**
+ * snd_hdac_set_codec_wakeup - Enable / disable HDMI/DP codec wakeup
+ * @bus: HDA core bus
+ * @enable: enable or disable the wakeup
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function should be called during the chip reset, also called at
+ * resume for updating STATESTS register read.
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
+{
+	struct drm_audio_component *acomp = bus->audio_component;
+
+	if (!acomp || !acomp->ops)
+		return -ENODEV;
+
+	if (!acomp->ops->codec_wake_override)
+		return 0;
+
+	dev_dbg(bus->dev, "%s codec wakeup\n",
+		enable ? "enable" : "disable");
+
+	acomp->ops->codec_wake_override(acomp->dev, enable);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_set_codec_wakeup);
+
+/**
+ * snd_hdac_display_power - Power up / down the power refcount
+ * @bus: HDA core bus
+ * @enable: power up or down
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function manages a refcount and calls the get_power() and
+ * put_power() ops accordingly, toggling the codec wakeup, too.
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
+{
+	struct drm_audio_component *acomp = bus->audio_component;
+
+	if (!acomp || !acomp->ops)
+		return -ENODEV;
+
+	dev_dbg(bus->dev, "display power %s\n",
+		enable ? "enable" : "disable");
+
+	if (enable) {
+		if (!bus->drm_power_refcount++) {
+			if (acomp->ops->get_power)
+				acomp->ops->get_power(acomp->dev);
+			snd_hdac_set_codec_wakeup(bus, true);
+			snd_hdac_set_codec_wakeup(bus, false);
+		}
+	} else {
+		WARN_ON(!bus->drm_power_refcount);
+		if (!--bus->drm_power_refcount)
+			if (acomp->ops->put_power)
+				acomp->ops->put_power(acomp->dev);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_display_power);
+
+/**
+ * snd_hdac_sync_audio_rate - Set N/CTS based on the sample rate
+ * @codec: HDA codec
+ * @nid: the pin widget NID
+ * @dev_id: device identifier
+ * @rate: the sample rate to set
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function sets N/CTS value based on the given sample rate.
+ * Returns zero for success, or a negative error code.
+ */
+int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
+			     int dev_id, int rate)
+{
+	struct hdac_bus *bus = codec->bus;
+	struct drm_audio_component *acomp = bus->audio_component;
+	int port, pipe;
+
+	if (!acomp || !acomp->ops || !acomp->ops->sync_audio_rate)
+		return -ENODEV;
+	port = nid;
+	if (acomp->audio_ops && acomp->audio_ops->pin2port) {
+		port = acomp->audio_ops->pin2port(codec, nid);
+		if (port < 0)
+			return -EINVAL;
+	}
+	pipe = dev_id;
+	return acomp->ops->sync_audio_rate(acomp->dev, port, pipe, rate);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate);
+
+/**
+ * snd_hdac_acomp_get_eld - Get the audio state and ELD via component
+ * @codec: HDA codec
+ * @nid: the pin widget NID
+ * @dev_id: device identifier
+ * @audio_enabled: the pointer to store the current audio state
+ * @buffer: the buffer pointer to store ELD bytes
+ * @max_bytes: the max bytes to be stored on @buffer
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function queries the current state of the audio on the given
+ * digital port and fetches the ELD bytes onto the given buffer.
+ * It returns the number of bytes for the total ELD data, zero for
+ * invalid ELD, or a negative error code.
+ *
+ * The return size is the total bytes required for the whole ELD bytes,
+ * thus it may be over @max_bytes.  If it's over @max_bytes, it implies
+ * that only a part of ELD bytes have been fetched.
+ */
+int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
+			   bool *audio_enabled, char *buffer, int max_bytes)
+{
+	struct hdac_bus *bus = codec->bus;
+	struct drm_audio_component *acomp = bus->audio_component;
+	int port, pipe;
+
+	if (!acomp || !acomp->ops || !acomp->ops->get_eld)
+		return -ENODEV;
+
+	port = nid;
+	if (acomp->audio_ops && acomp->audio_ops->pin2port) {
+		port = acomp->audio_ops->pin2port(codec, nid);
+		if (port < 0)
+			return -EINVAL;
+	}
+	pipe = dev_id;
+	return acomp->ops->get_eld(acomp->dev, port, pipe, audio_enabled,
+				   buffer, max_bytes);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_acomp_get_eld);
+
+static int hdac_component_master_bind(struct device *dev)
+{
+	struct drm_audio_component *acomp = hdac_get_acomp(dev);
+	int ret;
+
+	if (WARN_ON(!acomp))
+		return -EINVAL;
+
+	ret = component_bind_all(dev, acomp);
+	if (ret < 0)
+		return ret;
+
+	if (WARN_ON(!(acomp->dev && acomp->ops))) {
+		ret = -EINVAL;
+		goto out_unbind;
+	}
+
+	/* pin the module to avoid dynamic unbinding, but only if given */
+	if (!try_module_get(acomp->ops->owner)) {
+		ret = -ENODEV;
+		goto out_unbind;
+	}
+
+	if (acomp->audio_ops && acomp->audio_ops->master_bind) {
+		ret = acomp->audio_ops->master_bind(dev, acomp);
+		if (ret < 0)
+			goto module_put;
+	}
+
+	return 0;
+
+ module_put:
+	module_put(acomp->ops->owner);
+out_unbind:
+	component_unbind_all(dev, acomp);
+
+	return ret;
+}
+
+static void hdac_component_master_unbind(struct device *dev)
+{
+	struct drm_audio_component *acomp = hdac_get_acomp(dev);
+
+	if (acomp->audio_ops && acomp->audio_ops->master_unbind)
+		acomp->audio_ops->master_unbind(dev, acomp);
+	module_put(acomp->ops->owner);
+	component_unbind_all(dev, acomp);
+	WARN_ON(acomp->ops || acomp->dev);
+}
+
+static const struct component_master_ops hdac_component_master_ops = {
+	.bind = hdac_component_master_bind,
+	.unbind = hdac_component_master_unbind,
+};
+
+/**
+ * snd_hdac_acomp_register_notifier - Register audio component ops
+ * @bus: HDA core bus
+ * @aops: audio component ops
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function sets the given ops to be called by the graphics driver.
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
+				    const struct drm_audio_component_audio_ops *aops)
+{
+	if (!bus->audio_component)
+		return -ENODEV;
+
+	bus->audio_component->audio_ops = aops;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_acomp_register_notifier);
+
+/**
+ * snd_hdac_acomp_init - Initialize audio component
+ * @bus: HDA core bus
+ * @match_master: match function for finding components
+ * @extra_size: Extra bytes to allocate
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function initializes and sets up the audio component to communicate
+ * with graphics driver.
+ *
+ * Unlike snd_hdac_i915_init(), this function doesn't synchronize with the
+ * binding with the DRM component.  Each caller needs to sync via master_bind
+ * audio_ops.
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_acomp_init(struct hdac_bus *bus,
+			const struct drm_audio_component_audio_ops *aops,
+			int (*match_master)(struct device *, void *),
+			size_t extra_size)
+{
+	struct component_match *match = NULL;
+	struct device *dev = bus->dev;
+	struct drm_audio_component *acomp;
+	int ret;
+
+	if (WARN_ON(hdac_get_acomp(dev)))
+		return -EBUSY;
+
+	acomp = devres_alloc(hdac_acomp_release, sizeof(*acomp) + extra_size,
+			     GFP_KERNEL);
+	if (!acomp)
+		return -ENOMEM;
+	acomp->audio_ops = aops;
+	bus->audio_component = acomp;
+	devres_add(dev, acomp);
+
+	component_match_add(dev, &match, match_master, bus);
+	ret = component_master_add_with_match(dev, &hdac_component_master_ops,
+					      match);
+	if (ret < 0)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	bus->audio_component = NULL;
+	devres_destroy(dev, hdac_acomp_release, NULL, NULL);
+	dev_info(dev, "failed to add audio component master (%d)\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_acomp_init);
+
+/**
+ * snd_hdac_acomp_exit - Finalize audio component
+ * @bus: HDA core bus
+ *
+ * This function is supposed to be used only by a HD-audio controller
+ * driver that needs the interaction with graphics driver.
+ *
+ * This function releases the audio component that has been used.
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_acomp_exit(struct hdac_bus *bus)
+{
+	struct device *dev = bus->dev;
+	struct drm_audio_component *acomp = bus->audio_component;
+
+	if (!acomp)
+		return 0;
+
+	WARN_ON(bus->drm_power_refcount);
+	if (bus->drm_power_refcount > 0 && acomp->ops)
+		acomp->ops->put_power(acomp->dev);
+
+	component_master_del(dev, &hdac_component_master_ops);
+
+	bus->audio_component = NULL;
+	devres_destroy(dev, hdac_acomp_release, NULL, NULL);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_acomp_exit);
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c
index 7ba100bb1c3f..dbf02a3a8d2f 100644
--- a/sound/hda/hdac_device.c
+++ b/sound/hda/hdac_device.c
@@ -738,7 +738,7 @@ static struct hda_rate_tbl rate_bits[] = {
  */
 unsigned int snd_hdac_calc_stream_format(unsigned int rate,
 					 unsigned int channels,
-					 unsigned int format,
+					 snd_pcm_format_t format,
 					 unsigned int maxbps,
 					 unsigned short spdif_ctls)
 {
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index cbe818eda336..b5282cbbe489 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -15,88 +15,12 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/component.h>
-#include <drm/i915_component.h>
 #include <sound/core.h>
 #include <sound/hdaudio.h>
 #include <sound/hda_i915.h>
 #include <sound/hda_register.h>
 
-static struct i915_audio_component *hdac_acomp;
-
-/**
- * snd_hdac_set_codec_wakeup - Enable / disable HDMI/DP codec wakeup
- * @bus: HDA core bus
- * @enable: enable or disable the wakeup
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function should be called during the chip reset, also called at
- * resume for updating STATESTS register read.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
-{
-	struct i915_audio_component *acomp = bus->audio_component;
-
-	if (!acomp || !acomp->ops)
-		return -ENODEV;
-
-	if (!acomp->ops->codec_wake_override) {
-		dev_warn(bus->dev,
-			"Invalid codec wake callback\n");
-		return 0;
-	}
-
-	dev_dbg(bus->dev, "%s codec wakeup\n",
-		enable ? "enable" : "disable");
-
-	acomp->ops->codec_wake_override(acomp->dev, enable);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_set_codec_wakeup);
-
-/**
- * snd_hdac_display_power - Power up / down the power refcount
- * @bus: HDA core bus
- * @enable: power up or down
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function manages a refcount and calls the i915 get_power() and
- * put_power() ops accordingly, toggling the codec wakeup, too.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
-{
-	struct i915_audio_component *acomp = bus->audio_component;
-
-	if (!acomp || !acomp->ops)
-		return -ENODEV;
-
-	dev_dbg(bus->dev, "display power %s\n",
-		enable ? "enable" : "disable");
-
-	if (enable) {
-		if (!bus->i915_power_refcount++) {
-			acomp->ops->get_power(acomp->dev);
-			snd_hdac_set_codec_wakeup(bus, true);
-			snd_hdac_set_codec_wakeup(bus, false);
-		}
-	} else {
-		WARN_ON(!bus->i915_power_refcount);
-		if (!--bus->i915_power_refcount)
-			acomp->ops->put_power(acomp->dev);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_display_power);
+static struct completion bind_complete;
 
 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
 				((pci)->device == 0x0c0c) || \
@@ -119,7 +43,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_display_power);
  */
 void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
 {
-	struct i915_audio_component *acomp = bus->audio_component;
+	struct drm_audio_component *acomp = bus->audio_component;
 	struct pci_dev *pci = to_pci_dev(bus->dev);
 	int cdclk_freq;
 	unsigned int bclk_m, bclk_n;
@@ -158,181 +82,11 @@ void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
 }
 EXPORT_SYMBOL_GPL(snd_hdac_i915_set_bclk);
 
-/* There is a fixed mapping between audio pin node and display port.
- * on SNB, IVY, HSW, BSW, SKL, BXT, KBL:
- * Pin Widget 5 - PORT B (port = 1 in i915 driver)
- * Pin Widget 6 - PORT C (port = 2 in i915 driver)
- * Pin Widget 7 - PORT D (port = 3 in i915 driver)
- *
- * on VLV, ILK:
- * Pin Widget 4 - PORT B (port = 1 in i915 driver)
- * Pin Widget 5 - PORT C (port = 2 in i915 driver)
- * Pin Widget 6 - PORT D (port = 3 in i915 driver)
- */
-static int pin2port(struct hdac_device *codec, hda_nid_t pin_nid)
-{
-	int base_nid;
-
-	switch (codec->vendor_id) {
-	case 0x80860054: /* ILK */
-	case 0x80862804: /* ILK */
-	case 0x80862882: /* VLV */
-		base_nid = 3;
-		break;
-	default:
-		base_nid = 4;
-		break;
-	}
-
-	if (WARN_ON(pin_nid <= base_nid || pin_nid > base_nid + 3))
-		return -1;
-	return pin_nid - base_nid;
-}
-
-/**
- * snd_hdac_sync_audio_rate - Set N/CTS based on the sample rate
- * @codec: HDA codec
- * @nid: the pin widget NID
- * @dev_id: device identifier
- * @rate: the sample rate to set
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function sets N/CTS value based on the given sample rate.
- * Returns zero for success, or a negative error code.
- */
-int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
-			     int dev_id, int rate)
-{
-	struct hdac_bus *bus = codec->bus;
-	struct i915_audio_component *acomp = bus->audio_component;
-	int port, pipe;
-
-	if (!acomp || !acomp->ops || !acomp->ops->sync_audio_rate)
-		return -ENODEV;
-	port = pin2port(codec, nid);
-	if (port < 0)
-		return -EINVAL;
-	pipe = dev_id;
-	return acomp->ops->sync_audio_rate(acomp->dev, port, pipe, rate);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate);
-
-/**
- * snd_hdac_acomp_get_eld - Get the audio state and ELD via component
- * @codec: HDA codec
- * @nid: the pin widget NID
- * @dev_id: device identifier
- * @audio_enabled: the pointer to store the current audio state
- * @buffer: the buffer pointer to store ELD bytes
- * @max_bytes: the max bytes to be stored on @buffer
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function queries the current state of the audio on the given
- * digital port and fetches the ELD bytes onto the given buffer.
- * It returns the number of bytes for the total ELD data, zero for
- * invalid ELD, or a negative error code.
- *
- * The return size is the total bytes required for the whole ELD bytes,
- * thus it may be over @max_bytes.  If it's over @max_bytes, it implies
- * that only a part of ELD bytes have been fetched.
- */
-int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
-			   bool *audio_enabled, char *buffer, int max_bytes)
-{
-	struct hdac_bus *bus = codec->bus;
-	struct i915_audio_component *acomp = bus->audio_component;
-	int port, pipe;
-
-	if (!acomp || !acomp->ops || !acomp->ops->get_eld)
-		return -ENODEV;
-
-	port = pin2port(codec, nid);
-	if (port < 0)
-		return -EINVAL;
-
-	pipe = dev_id;
-	return acomp->ops->get_eld(acomp->dev, port, pipe, audio_enabled,
-				   buffer, max_bytes);
-}
-EXPORT_SYMBOL_GPL(snd_hdac_acomp_get_eld);
-
-static int hdac_component_master_bind(struct device *dev)
-{
-	struct i915_audio_component *acomp = hdac_acomp;
-	int ret;
-
-	ret = component_bind_all(dev, acomp);
-	if (ret < 0)
-		return ret;
-
-	if (WARN_ON(!(acomp->dev && acomp->ops && acomp->ops->get_power &&
-		      acomp->ops->put_power && acomp->ops->get_cdclk_freq))) {
-		ret = -EINVAL;
-		goto out_unbind;
-	}
-
-	/*
-	 * Atm, we don't support dynamic unbinding initiated by the child
-	 * component, so pin its containing module until we unbind.
-	 */
-	if (!try_module_get(acomp->ops->owner)) {
-		ret = -ENODEV;
-		goto out_unbind;
-	}
-
-	return 0;
-
-out_unbind:
-	component_unbind_all(dev, acomp);
-
-	return ret;
-}
-
-static void hdac_component_master_unbind(struct device *dev)
-{
-	struct i915_audio_component *acomp = hdac_acomp;
-
-	module_put(acomp->ops->owner);
-	component_unbind_all(dev, acomp);
-	WARN_ON(acomp->ops || acomp->dev);
-}
-
-static const struct component_master_ops hdac_component_master_ops = {
-	.bind = hdac_component_master_bind,
-	.unbind = hdac_component_master_unbind,
-};
-
-static int hdac_component_master_match(struct device *dev, void *data)
+static int i915_component_master_match(struct device *dev, void *data)
 {
-	/* i915 is the only supported component */
 	return !strcmp(dev->driver->name, "i915");
 }
 
-/**
- * snd_hdac_i915_register_notifier - Register i915 audio component ops
- * @aops: i915 audio component ops
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function sets the given ops to be called by the i915 graphics driver.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *aops)
-{
-	if (!hdac_acomp)
-		return -ENODEV;
-
-	hdac_acomp->audio_ops = aops;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_i915_register_notifier);
-
 /* check whether intel graphics is present */
 static bool i915_gfx_present(void)
 {
@@ -345,6 +99,19 @@ static bool i915_gfx_present(void)
 	return pci_dev_present(ids);
 }
 
+static int i915_master_bind(struct device *dev,
+			    struct drm_audio_component *acomp)
+{
+	complete_all(&bind_complete);
+	/* clear audio_ops here as it was needed only for completion call */
+	acomp->audio_ops = NULL;
+	return 0;
+}
+
+static const struct drm_audio_component_audio_ops i915_init_ops = {
+	.master_bind = i915_master_bind
+};
+
 /**
  * snd_hdac_i915_init - Initialize i915 audio component
  * @bus: HDA core bus
@@ -359,83 +126,31 @@ static bool i915_gfx_present(void)
  */
 int snd_hdac_i915_init(struct hdac_bus *bus)
 {
-	struct component_match *match = NULL;
-	struct device *dev = bus->dev;
-	struct i915_audio_component *acomp;
-	int ret;
-
-	if (WARN_ON(hdac_acomp))
-		return -EBUSY;
+	struct drm_audio_component *acomp;
+	int err;
 
 	if (!i915_gfx_present())
 		return -ENODEV;
 
-	acomp = kzalloc(sizeof(*acomp), GFP_KERNEL);
-	if (!acomp)
-		return -ENOMEM;
-	bus->audio_component = acomp;
-	hdac_acomp = acomp;
-
-	component_match_add(dev, &match, hdac_component_master_match, bus);
-	ret = component_master_add_with_match(dev, &hdac_component_master_ops,
-					      match);
-	if (ret < 0)
-		goto out_err;
-
-	/*
-	 * Atm, we don't support deferring the component binding, so make sure
-	 * i915 is loaded and that the binding successfully completes.
-	 */
-	request_module("i915");
+	init_completion(&bind_complete);
 
+	err = snd_hdac_acomp_init(bus, &i915_init_ops,
+				  i915_component_master_match,
+				  sizeof(struct i915_audio_component) - sizeof(*acomp));
+	if (err < 0)
+		return err;
+	acomp = bus->audio_component;
+	if (!acomp)
+		return -ENODEV;
 	if (!acomp->ops) {
-		ret = -ENODEV;
-		goto out_master_del;
+		request_module("i915");
+		/* 10s timeout */
+		wait_for_completion_timeout(&bind_complete, 10 * 1000);
+	}
+	if (!acomp->ops) {
+		snd_hdac_acomp_exit(bus);
+		return -ENODEV;
 	}
-	dev_dbg(dev, "bound to i915 component master\n");
-
 	return 0;
-out_master_del:
-	component_master_del(dev, &hdac_component_master_ops);
-out_err:
-	kfree(acomp);
-	bus->audio_component = NULL;
-	hdac_acomp = NULL;
-	dev_info(dev, "failed to add i915 component master (%d)\n", ret);
-
-	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_i915_init);
-
-/**
- * snd_hdac_i915_exit - Finalize i915 audio component
- * @bus: HDA core bus
- *
- * This function is supposed to be used only by a HD-audio controller
- * driver that needs the interaction with i915 graphics.
- *
- * This function releases the i915 audio component that has been used.
- *
- * Returns zero for success or a negative error code.
- */
-int snd_hdac_i915_exit(struct hdac_bus *bus)
-{
-	struct device *dev = bus->dev;
-	struct i915_audio_component *acomp = bus->audio_component;
-
-	if (!acomp)
-		return 0;
-
-	WARN_ON(bus->i915_power_refcount);
-	if (bus->i915_power_refcount > 0 && acomp->ops)
-		acomp->ops->put_power(acomp->dev);
-
-	component_master_del(dev, &hdac_component_master_ops);
-
-	kfree(acomp);
-	bus->audio_component = NULL;
-	hdac_acomp = NULL;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hdac_i915_exit);
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index e1472c7ab6c1..eee422390d8e 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -621,7 +621,7 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
 			 unsigned int byte_size, struct snd_dma_buffer *bufp)
 {
 	struct hdac_bus *bus = azx_dev->bus;
-	u32 *bdl;
+	__le32 *bdl;
 	int err;
 
 	snd_hdac_dsp_lock(azx_dev);
@@ -651,7 +651,7 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
 	snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0);
 
 	azx_dev->frags = 0;
-	bdl = (u32 *)azx_dev->bdl.area;
+	bdl = (__le32 *)azx_dev->bdl.area;
 	err = setup_bdle(bus, bufp, azx_dev, &bdl, 0, byte_size, 0);
 	if (err < 0)
 		goto error;