Merge branch 'for-next' into for-linus

Documentation/devicetree/bindings/sound/nvidia,tegra-audio-max98090.txt

@@ -18,6 +18,7 @@ Required properties:
   * Headphones
   * Speakers
   * Mic Jack
+  * Int Mic
 
 - nvidia,i2s-controller : The phandle of the Tegra I2S controller that's
   connected to the CODEC.

Documentation/sound/alsa/HD-Audio.txt

@@ -466,7 +466,11 @@ The generic parser supports the following hints:
 - add_jack_modes (bool): add "xxx Jack Mode" enum controls to each
   I/O jack for allowing to change the headphone amp and mic bias VREF
   capabilities
-- power_down_unused (bool): power down the unused widgets
+- power_save_node (bool): advanced power management for each widget,
+  controlling the power sate (D0/D3) of each widget node depending on
+  the actual pin and stream states
+- power_down_unused (bool): power down the unused widgets, a subset of
+  power_save_node, and will be dropped in future
 - add_hp_mic (bool): add the headphone to capture source if possible
 - hp_mic_detect (bool): enable/disable the hp/mic shared input for a
   single built-in mic case; default true

Documentation/sound/alsa/timestamping.txt

@@ -0,0 +1,200 @@
+The ALSA API can provide two different system timestamps:
+
+- Trigger_tstamp is the system time snapshot taken when the .trigger
+callback is invoked. This snapshot is taken by the ALSA core in the
+general case, but specific hardware may have synchronization
+capabilities or conversely may only be able to provide a correct
+estimate with a delay. In the latter two cases, the low-level driver
+is responsible for updating the trigger_tstamp at the most appropriate
+and precise moment. Applications should not rely solely on the first
+trigger_tstamp but update their internal calculations if the driver
+provides a refined estimate with a delay.
+
+- tstamp is the current system timestamp updated during the last
+event or application query.
+The difference (tstamp - trigger_tstamp) defines the elapsed time.
+
+The ALSA API provides reports two basic pieces of information, avail
+and delay, which combined with the trigger and current system
+timestamps allow for applications to keep track of the 'fullness' of
+the ring buffer and the amount of queued samples.
+
+The use of these different pointers and time information depends on
+the application needs:
+
+- 'avail' reports how much can be written in the ring buffer
+- 'delay' reports the time it will take to hear a new sample after all
+queued samples have been played out.
+
+When timestamps are enabled, the avail/delay information is reported
+along with a snapshot of system time. Applications can select from
+CLOCK_REALTIME (NTP corrections including going backwards),
+CLOCK_MONOTONIC (NTP corrections but never going backwards),
+CLOCK_MONOTIC_RAW (without NTP corrections) and change the mode
+dynamically with sw_params
+
+
+The ALSA API also provide an audio_tstamp which reflects the passage
+of time as measured by different components of audio hardware.  In
+ascii-art, this could be represented as follows (for the playback
+case):
+
+
+--------------------------------------------------------------> time
+  ^               ^              ^                ^           ^
+  |               |              |                |           |
+ analog         link            dma              app       FullBuffer
+ time           time           time              time        time
+  |               |              |                |           |
+  |< codec delay >|<--hw delay-->|<queued samples>|<---avail->|
+  |<----------------- delay---------------------->|           |
+			         |<----ring buffer length---->|
+
+The analog time is taken at the last stage of the playback, as close
+as possible to the actual transducer
+
+The link time is taken at the output of the SOC/chipset as the samples
+are pushed on a link. The link time can be directly measured if
+supported in hardware by sample counters or wallclocks (e.g. with
+HDAudio 24MHz or PTP clock for networked solutions) or indirectly
+estimated (e.g. with the frame counter in USB).
+
+The DMA time is measured using counters - typically the least reliable
+of all measurements due to the bursty natured of DMA transfers.
+
+The app time corresponds to the time tracked by an application after
+writing in the ring buffer.
+
+The application can query what the hardware supports, define which
+audio time it wants reported by selecting the relevant settings in
+audio_tstamp_config fields, get an estimate of the timestamp
+accuracy. It can also request the delay-to-analog be included in the
+measurement. Direct access to the link time is very interesting on
+platforms that provide an embedded DSP; measuring directly the link
+time with dedicated hardware, possibly synchronized with system time,
+removes the need to keep track of internal DSP processing times and
+latency.
+
+In case the application requests an audio tstamp that is not supported
+in hardware/low-level driver, the type is overridden as DEFAULT and the
+timestamp will report the DMA time based on the hw_pointer value.
+
+For backwards compatibility with previous implementations that did not
+provide timestamp selection, with a zero-valued COMPAT timestamp type
+the results will default to the HDAudio wall clock for playback
+streams and to the DMA time (hw_ptr) in all other cases.
+
+The audio timestamp accuracy can be returned to user-space, so that
+appropriate decisions are made:
+
+- for dma time (default), the granularity of the transfers can be
+  inferred from the steps between updates and in turn provide
+  information on how much the application pointer can be rewound
+  safely.
+
+- the link time can be used to track long-term drifts between audio
+  and system time using the (tstamp-trigger_tstamp)/audio_tstamp
+  ratio, the precision helps define how much smoothing/low-pass
+  filtering is required. The link time can be either reset on startup
+  or reported as is (the latter being useful to compare progress of
+  different streams - but may require the wallclock to be always
+  running and not wrap-around during idle periods). If supported in
+  hardware, the absolute link time could also be used to define a
+  precise start time (patches WIP)
+
+- including the delay in the audio timestamp may
+  counter-intuitively not increase the precision of timestamps, e.g. if a
+  codec includes variable-latency DSP processing or a chain of
+  hardware components the delay is typically not known with precision.
+
+The accuracy is reported in nanosecond units (using an unsigned 32-bit
+word), which gives a max precision of 4.29s, more than enough for
+audio applications...
+
+Due to the varied nature of timestamping needs, even for a single
+application, the audio_tstamp_config can be changed dynamically. In
+the STATUS ioctl, the parameters are read-only and do not allow for
+any application selection. To work around this limitation without
+impacting legacy applications, a new STATUS_EXT ioctl is introduced
+with read/write parameters. ALSA-lib will be modified to make use of
+STATUS_EXT and effectively deprecate STATUS.
+
+The ALSA API only allows for a single audio timestamp to be reported
+at a time. This is a conscious design decision, reading the audio
+timestamps from hardware registers or from IPC takes time, the more
+timestamps are read the more imprecise the combined measurements
+are. To avoid any interpretation issues, a single (system, audio)
+timestamp is reported. Applications that need different timestamps
+will be required to issue multiple queries and perform an
+interpolation of the results
+
+In some hardware-specific configuration, the system timestamp is
+latched by a low-level audio subsytem, and the information provided
+back to the driver. Due to potential delays in the communication with
+the hardware, there is a risk of misalignment with the avail and delay
+information. To make sure applications are not confused, a
+driver_timestamp field is added in the snd_pcm_status structure; this
+timestamp shows when the information is put together by the driver
+before returning from the STATUS and STATUS_EXT ioctl. in most cases
+this driver_timestamp will be identical to the regular system tstamp.
+
+Examples of typestamping with HDaudio:
+
+1. DMA timestamp, no compensation for DMA+analog delay
+$ ./audio_time  -p --ts_type=1
+playback: systime: 341121338 nsec, audio time 342000000 nsec, 	systime delta -878662
+playback: systime: 426236663 nsec, audio time 427187500 nsec, 	systime delta -950837
+playback: systime: 597080580 nsec, audio time 598000000 nsec, 	systime delta -919420
+playback: systime: 682059782 nsec, audio time 683020833 nsec, 	systime delta -961051
+playback: systime: 852896415 nsec, audio time 853854166 nsec, 	systime delta -957751
+playback: systime: 937903344 nsec, audio time 938854166 nsec, 	systime delta -950822
+
+2. DMA timestamp, compensation for DMA+analog delay
+$ ./audio_time  -p --ts_type=1 -d
+playback: systime: 341053347 nsec, audio time 341062500 nsec, 	systime delta -9153
+playback: systime: 426072447 nsec, audio time 426062500 nsec, 	systime delta 9947
+playback: systime: 596899518 nsec, audio time 596895833 nsec, 	systime delta 3685
+playback: systime: 681915317 nsec, audio time 681916666 nsec, 	systime delta -1349
+playback: systime: 852741306 nsec, audio time 852750000 nsec, 	systime delta -8694
+
+3. link timestamp, compensation for DMA+analog delay
+$ ./audio_time  -p --ts_type=2 -d
+playback: systime: 341060004 nsec, audio time 341062791 nsec, 	systime delta -2787
+playback: systime: 426242074 nsec, audio time 426244875 nsec, 	systime delta -2801
+playback: systime: 597080992 nsec, audio time 597084583 nsec, 	systime delta -3591
+playback: systime: 682084512 nsec, audio time 682088291 nsec, 	systime delta -3779
+playback: systime: 852936229 nsec, audio time 852940916 nsec, 	systime delta -4687
+playback: systime: 938107562 nsec, audio time 938112708 nsec, 	systime delta -5146
+
+Example 1 shows that the timestamp at the DMA level is close to 1ms
+ahead of the actual playback time (as a side time this sort of
+measurement can help define rewind safeguards). Compensating for the
+DMA-link delay in example 2 helps remove the hardware buffering abut
+the information is still very jittery, with up to one sample of
+error. In example 3 where the timestamps are measured with the link
+wallclock, the timestamps show a monotonic behavior and a lower
+dispersion.
+
+Example 3 and 4 are with USB audio class. Example 3 shows a high
+offset between audio time and system time due to buffering. Example 4
+shows how compensating for the delay exposes a 1ms accuracy (due to
+the use of the frame counter by the driver)
+
+Example 3: DMA timestamp, no compensation for delay, delta of ~5ms
+$ ./audio_time -p -Dhw:1 -t1
+playback: systime: 120174019 nsec, audio time 125000000 nsec, 	systime delta -4825981
+playback: systime: 245041136 nsec, audio time 250000000 nsec, 	systime delta -4958864
+playback: systime: 370106088 nsec, audio time 375000000 nsec, 	systime delta -4893912
+playback: systime: 495040065 nsec, audio time 500000000 nsec, 	systime delta -4959935
+playback: systime: 620038179 nsec, audio time 625000000 nsec, 	systime delta -4961821
+playback: systime: 745087741 nsec, audio time 750000000 nsec, 	systime delta -4912259
+playback: systime: 870037336 nsec, audio time 875000000 nsec, 	systime delta -4962664
+
+Example 4: DMA timestamp, compensation for delay, delay of ~1ms
+$ ./audio_time -p -Dhw:1 -t1 -d
+playback: systime: 120190520 nsec, audio time 120000000 nsec, 	systime delta 190520
+playback: systime: 245036740 nsec, audio time 244000000 nsec, 	systime delta 1036740
+playback: systime: 370034081 nsec, audio time 369000000 nsec, 	systime delta 1034081
+playback: systime: 495159907 nsec, audio time 494000000 nsec, 	systime delta 1159907
+playback: systime: 620098824 nsec, audio time 619000000 nsec, 	systime delta 1098824
+playback: systime: 745031847 nsec, audio time 744000000 nsec, 	systime delta 1031847

include/sound/ac97_codec.h

@@ -608,7 +608,9 @@ struct ac97_quirk {
 	int type;		/* quirk type above */
 };
 
-int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override);
+int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
+			   const struct ac97_quirk *quirk,
+			   const char *override);
 int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
 
 /*

include/sound/compress_driver.h

@@ -70,7 +70,7 @@ struct snd_compr_runtime {
  * @device: device pointer
  * @direction: stream direction, playback/recording
  * @metadata_set: metadata set flag, true when set
- * @next_track: has userspace signall next track transistion, true when set
+ * @next_track: has userspace signal next track transition, true when set
  * @private_data: pointer to DSP private data
  */
 struct snd_compr_stream {
@@ -95,7 +95,7 @@ struct snd_compr_stream {
  * and the stream properties
  * @get_params: retrieve the codec parameters, mandatory
  * @set_metadata: Set the metadata values for a stream
- * @get_metadata: retreives the requested metadata values from stream
+ * @get_metadata: retrieves the requested metadata values from stream
  * @trigger: Trigger operations like start, pause, resume, drain, stop.
  * This callback is mandatory
  * @pointer: Retrieve current h/w pointer information. Mandatory

include/sound/control.h

@@ -227,7 +227,7 @@ snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
  * Add a virtual slave control to the given master.
  * Unlike snd_ctl_add_slave(), the element added via this function
  * is supposed to have volatile values, and get callback is called
- * at each time quried from the master.
+ * at each time queried from the master.
  *
  * When the control peeks the hardware values directly and the value
  * can be changed by other means than the put callback of the element,

include/sound/core.h

@@ -278,7 +278,8 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type,
 		   void *device_data, struct snd_device_ops *ops);
 int snd_device_register(struct snd_card *card, void *device_data);
 int snd_device_register_all(struct snd_card *card);
-int snd_device_disconnect_all(struct snd_card *card);
+void snd_device_disconnect(struct snd_card *card, void *device_data);
+void snd_device_disconnect_all(struct snd_card *card);
 void snd_device_free(struct snd_card *card, void *device_data);
 void snd_device_free_all(struct snd_card *card);
 

include/sound/hda_regmap.h

@@ -0,0 +1,217 @@
+/*
+ * HD-audio regmap helpers
+ */
+
+#ifndef __SOUND_HDA_REGMAP_H
+#define __SOUND_HDA_REGMAP_H
+
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/hdaudio.h>
+
+int snd_hdac_regmap_init(struct hdac_device *codec);
+void snd_hdac_regmap_exit(struct hdac_device *codec);
+int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,
+				    unsigned int verb);
+int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg,
+			     unsigned int *val);
+int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg,
+			      unsigned int val);
+int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg,
+			       unsigned int mask, unsigned int val);
+
+/**
+ * snd_hdac_regmap_encode_verb - encode the verb to a pseudo register
+ * @nid: widget NID
+ * @verb: codec verb
+ *
+ * Returns an encoded pseudo register.
+ */
+#define snd_hdac_regmap_encode_verb(nid, verb)		\
+	(((verb) << 8) | 0x80000 | ((unsigned int)(nid) << 20))
+
+/**
+ * snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register
+ * @nid: widget NID
+ * @ch: channel (left = 0, right = 1)
+ * @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
+ * @idx: input index value
+ *
+ * Returns an encoded pseudo register.
+ */
+#define snd_hdac_regmap_encode_amp(nid, ch, dir, idx)			\
+	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) |	\
+	 ((ch) ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT) |			\
+	 ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \
+	 (idx))
+
+/**
+ * snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs
+ * @nid: widget NID
+ * @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
+ * @idx: input index value
+ *
+ * Returns an encoded pseudo register.
+ */
+#define snd_hdac_regmap_encode_amp_stereo(nid, dir, idx)		\
+	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) |	\
+	 AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT | /* both bits set! */	\
+	 ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \
+	 (idx))
+
+/**
+ * snd_hdac_regmap_write - Write a verb with caching
+ * @nid: codec NID
+ * @reg: verb to write
+ * @val: value to write
+ *
+ * For writing an amp value, use snd_hda_regmap_amp_update().
+ */
+static inline int
+snd_hdac_regmap_write(struct hdac_device *codec, hda_nid_t nid,
+		      unsigned int verb, unsigned int val)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
+
+	return snd_hdac_regmap_write_raw(codec, cmd, val);
+}
+
+/**
+ * snd_hda_regmap_update - Update a verb value with caching
+ * @nid: codec NID
+ * @verb: verb to update
+ * @mask: bit mask to update
+ * @val: value to update
+ *
+ * For updating an amp value, use snd_hda_regmap_amp_update().
+ */
+static inline int
+snd_hdac_regmap_update(struct hdac_device *codec, hda_nid_t nid,
+		       unsigned int verb, unsigned int mask,
+		       unsigned int val)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
+
+	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
+}
+
+/**
+ * snd_hda_regmap_read - Read a verb with caching
+ * @nid: codec NID
+ * @verb: verb to read
+ * @val: pointer to store the value
+ *
+ * For reading an amp value, use snd_hda_regmap_get_amp().
+ */
+static inline int
+snd_hdac_regmap_read(struct hdac_device *codec, hda_nid_t nid,
+		     unsigned int verb, unsigned int *val)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
+
+	return snd_hdac_regmap_read_raw(codec, cmd, val);
+}
+
+/**
+ * snd_hdac_regmap_get_amp - Read AMP value
+ * @codec: HD-audio codec
+ * @nid: NID to read the AMP value
+ * @ch: channel (left=0 or right=1)
+ * @direction: #HDA_INPUT or #HDA_OUTPUT
+ * @index: the index value (only for input direction)
+ * @val: the pointer to store the value
+ *
+ * Read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
+ * Returns the value or a negative error.
+ */
+static inline int
+snd_hdac_regmap_get_amp(struct hdac_device *codec, hda_nid_t nid,
+			int ch, int dir, int idx)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
+	int err, val;
+
+	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
+	return err < 0 ? err : val;
+}
+
+/**
+ * snd_hdac_regmap_update_amp - update the AMP value
+ * @codec: HD-audio codec
+ * @nid: NID to read the AMP value
+ * @ch: channel (left=0 or right=1)
+ * @direction: #HDA_INPUT or #HDA_OUTPUT
+ * @idx: the index value (only for input direction)
+ * @mask: bit mask to set
+ * @val: the bits value to set
+ *
+ * Update the AMP value with a bit mask.
+ * Returns 0 if the value is unchanged, 1 if changed, or a negative error.
+ */
+static inline int
+snd_hdac_regmap_update_amp(struct hdac_device *codec, hda_nid_t nid,
+			   int ch, int dir, int idx, int mask, int val)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
+
+	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
+}
+
+/**
+ * snd_hdac_regmap_get_amp_stereo - Read stereo AMP values
+ * @codec: HD-audio codec
+ * @nid: NID to read the AMP value
+ * @ch: channel (left=0 or right=1)
+ * @direction: #HDA_INPUT or #HDA_OUTPUT
+ * @index: the index value (only for input direction)
+ * @val: the pointer to store the value
+ *
+ * Read stereo AMP values.  The lower byte is left, the upper byte is right.
+ * Returns the value or a negative error.
+ */
+static inline int
+snd_hdac_regmap_get_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
+			       int dir, int idx)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);
+	int err, val;
+
+	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
+	return err < 0 ? err : val;
+}
+
+/**
+ * snd_hdac_regmap_update_amp_stereo - update the stereo AMP value
+ * @codec: HD-audio codec
+ * @nid: NID to read the AMP value
+ * @direction: #HDA_INPUT or #HDA_OUTPUT
+ * @idx: the index value (only for input direction)
+ * @mask: bit mask to set
+ * @val: the bits value to set
+ *
+ * Update the stereo AMP value with a bit mask.
+ * The lower byte is left, the upper byte is right.
+ * Returns 0 if the value is unchanged, 1 if changed, or a negative error.
+ */
+static inline int
+snd_hdac_regmap_update_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
+				  int dir, int idx, int mask, int val)
+{
+	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);
+
+	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
+}
+
+/**
+ * snd_hdac_regmap_sync_node - sync the widget node attributes
+ * @codec: HD-audio codec
+ * @nid: NID to sync
+ */
+static inline void
+snd_hdac_regmap_sync_node(struct hdac_device *codec, hda_nid_t nid)
+{
+	regcache_mark_dirty(codec->regmap);
+	regcache_sync_region(codec->regmap, nid << 20, ((nid + 1) << 20) - 1);
+}
+
+#endif /* __SOUND_HDA_REGMAP_H */

include/sound/hdaudio.h

@@ -0,0 +1,271 @@
+/*
+ * HD-audio core stuff
+ */
+
+#ifndef __SOUND_HDAUDIO_H
+#define __SOUND_HDAUDIO_H
+
+#include <linux/device.h>
+#include <sound/hda_verbs.h>
+
+/* codec node id */
+typedef u16 hda_nid_t;
+
+struct hdac_bus;
+struct hdac_device;
+struct hdac_driver;
+struct hdac_widget_tree;
+
+/*
+ * exported bus type
+ */
+extern struct bus_type snd_hda_bus_type;
+
+/*
+ * generic arrays
+ */
+struct snd_array {
+	unsigned int used;
+	unsigned int alloced;
+	unsigned int elem_size;
+	unsigned int alloc_align;
+	void *list;
+};
+
+/*
+ * HD-audio codec base device
+ */
+struct hdac_device {
+	struct device dev;
+	int type;
+	struct hdac_bus *bus;
+	unsigned int addr;		/* codec address */
+	struct list_head list;		/* list point for bus codec_list */
+
+	hda_nid_t afg;			/* AFG node id */
+	hda_nid_t mfg;			/* MFG node id */
+
+	/* ids */
+	unsigned int vendor_id;
+	unsigned int subsystem_id;
+	unsigned int revision_id;
+	unsigned int afg_function_id;
+	unsigned int mfg_function_id;
+	unsigned int afg_unsol:1;
+	unsigned int mfg_unsol:1;
+
+	unsigned int power_caps;	/* FG power caps */
+
+	const char *vendor_name;	/* codec vendor name */
+	const char *chip_name;		/* codec chip name */
+
+	/* verb exec op override */
+	int (*exec_verb)(struct hdac_device *dev, unsigned int cmd,
+			 unsigned int flags, unsigned int *res);
+
+	/* widgets */
+	unsigned int num_nodes;
+	hda_nid_t start_nid, end_nid;
+
+	/* misc flags */
+	atomic_t in_pm;		/* suspend/resume being performed */
+
+	/* sysfs */
+	struct hdac_widget_tree *widgets;
+
+	/* regmap */
+	struct regmap *regmap;
+	struct snd_array vendor_verbs;
+	bool lazy_cache:1;	/* don't wake up for writes */
+	bool caps_overwriting:1; /* caps overwrite being in process */
+	bool cache_coef:1;	/* cache COEF read/write too */
+};
+
+/* device/driver type used for matching */
+enum {
+	HDA_DEV_CORE,
+	HDA_DEV_LEGACY,
+};
+
+/* direction */
+enum {
+	HDA_INPUT, HDA_OUTPUT
+};
+
+#define dev_to_hdac_dev(_dev)	container_of(_dev, struct hdac_device, dev)
+
+int snd_hdac_device_init(struct hdac_device *dev, struct hdac_bus *bus,
+			 const char *name, unsigned int addr);
+void snd_hdac_device_exit(struct hdac_device *dev);
+int snd_hdac_device_register(struct hdac_device *codec);
+void snd_hdac_device_unregister(struct hdac_device *codec);
+
+int snd_hdac_refresh_widgets(struct hdac_device *codec);
+
+unsigned int snd_hdac_make_cmd(struct hdac_device *codec, hda_nid_t nid,
+			       unsigned int verb, unsigned int parm);
+int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,
+		       unsigned int flags, unsigned int *res);
+int snd_hdac_read(struct hdac_device *codec, hda_nid_t nid,
+		  unsigned int verb, unsigned int parm, unsigned int *res);
+int _snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm,
+			unsigned int *res);
+int snd_hdac_read_parm_uncached(struct hdac_device *codec, hda_nid_t nid,
+				int parm);
+int snd_hdac_override_parm(struct hdac_device *codec, hda_nid_t nid,
+			   unsigned int parm, unsigned int val);
+int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid,
+			     hda_nid_t *conn_list, int max_conns);
+int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid,
+			   hda_nid_t *start_id);
+
+/**
+ * snd_hdac_read_parm - read a codec parameter
+ * @codec: the codec object
+ * @nid: NID to read a parameter
+ * @parm: parameter to read
+ *
+ * Returns -1 for error.  If you need to distinguish the error more
+ * strictly, use _snd_hdac_read_parm() directly.
+ */
+static inline int snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid,
+				     int parm)
+{
+	unsigned int val;
+
+	return _snd_hdac_read_parm(codec, nid, parm, &val) < 0 ? -1 : val;
+}
+
+#ifdef CONFIG_PM
+void snd_hdac_power_up(struct hdac_device *codec);
+void snd_hdac_power_down(struct hdac_device *codec);
+#else
+static inline void snd_hdac_power_up(struct hdac_device *codec) {}
+static inline void snd_hdac_power_down(struct hdac_device *codec) {}
+#endif
+
+/**
+ * snd_hdac_power_up_pm - power up the codec
+ * @codec: the codec object
+ *
+ * This function can be called in a recursive code path like init code
+ * which may be called by PM suspend/resume again.  OTOH, if a power-up
+ * call must wake up the sleeper (e.g. in a kctl callback), use
+ * snd_hdac_power_up() instead.
+ */
+static inline void snd_hdac_power_up_pm(struct hdac_device *codec)
+{
+	if (!atomic_read(&codec->in_pm))
+		snd_hdac_power_up(codec);
+}
+
+/**
+ * snd_hdac_power_down_pm - power down the codec
+ * @codec: the codec object
+ *
+ * Like snd_hdac_power_up_pm(), this function is used in a recursive
+ * code path like init code which may be called by PM suspend/resume again.
+ */
+static inline void snd_hdac_power_down_pm(struct hdac_device *codec)
+{
+	if (!atomic_read(&codec->in_pm))
+		snd_hdac_power_down(codec);
+}
+
+/*
+ * HD-audio codec base driver
+ */
+struct hdac_driver {
+	struct device_driver driver;
+	int type;
+	int (*match)(struct hdac_device *dev, struct hdac_driver *drv);
+	void (*unsol_event)(struct hdac_device *dev, unsigned int event);
+};
+
+#define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver)
+
+/*
+ * HD-audio bus base driver
+ */
+struct hdac_bus_ops {
+	/* send a single command */
+	int (*command)(struct hdac_bus *bus, unsigned int cmd);
+	/* get a response from the last command */
+	int (*get_response)(struct hdac_bus *bus, unsigned int addr,
+			    unsigned int *res);
+};
+
+#define HDA_UNSOL_QUEUE_SIZE	64
+
+struct hdac_bus {
+	struct device *dev;
+	const struct hdac_bus_ops *ops;
+
+	/* codec linked list */
+	struct list_head codec_list;
+	unsigned int num_codecs;
+
+	/* link caddr -> codec */
+	struct hdac_device *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
+
+	/* unsolicited event queue */
+	u32 unsol_queue[HDA_UNSOL_QUEUE_SIZE * 2]; /* ring buffer */
+	unsigned int unsol_rp, unsol_wp;
+	struct work_struct unsol_work;
+
+	/* bit flags of powered codecs */
+	unsigned long codec_powered;
+
+	/* flags */
+	bool sync_write:1;		/* sync after verb write */
+
+	/* locks */
+	struct mutex cmd_mutex;
+};
+
+int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
+		      const struct hdac_bus_ops *ops);
+void snd_hdac_bus_exit(struct hdac_bus *bus);
+int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
+			   unsigned int cmd, unsigned int *res);
+int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,
+				    unsigned int cmd, unsigned int *res);
+void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex);
+
+int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec);
+void snd_hdac_bus_remove_device(struct hdac_bus *bus,
+				struct hdac_device *codec);
+
+static inline void snd_hdac_codec_link_up(struct hdac_device *codec)
+{
+	set_bit(codec->addr, &codec->bus->codec_powered);
+}
+
+static inline void snd_hdac_codec_link_down(struct hdac_device *codec)
+{
+	clear_bit(codec->addr, &codec->bus->codec_powered);
+}
+
+/*
+ * generic array helpers
+ */
+void *snd_array_new(struct snd_array *array);
+void snd_array_free(struct snd_array *array);
+static inline void snd_array_init(struct snd_array *array, unsigned int size,
+				  unsigned int align)
+{
+	array->elem_size = size;
+	array->alloc_align = align;
+}
+
+static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
+{
+	return array->list + idx * array->elem_size;
+}
+
+static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
+{
+	return (unsigned long)(ptr - array->list) / array->elem_size;
+}
+
+#endif /* __SOUND_HDAUDIO_H */

include/sound/pcm.h

@@ -60,6 +60,9 @@ struct snd_pcm_hardware {
 
 struct snd_pcm_substream;
 
+struct snd_pcm_audio_tstamp_config; /* definitions further down */
+struct snd_pcm_audio_tstamp_report;
+
 struct snd_pcm_ops {
 	int (*open)(struct snd_pcm_substream *substream);
 	int (*close)(struct snd_pcm_substream *substream);
@@ -71,8 +74,10 @@ struct snd_pcm_ops {
 	int (*prepare)(struct snd_pcm_substream *substream);
 	int (*trigger)(struct snd_pcm_substream *substream, int cmd);
 	snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);
-	int (*wall_clock)(struct snd_pcm_substream *substream,
-			  struct timespec *audio_ts);
+	int (*get_time_info)(struct snd_pcm_substream *substream,
+			struct timespec *system_ts, struct timespec *audio_ts,
+			struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+			struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
 	int (*copy)(struct snd_pcm_substream *substream, int channel,
 		    snd_pcm_uframes_t pos,
 		    void __user *buf, snd_pcm_uframes_t count);
@@ -281,6 +286,58 @@ struct snd_pcm_hw_constraint_ranges {
 
 struct snd_pcm_hwptr_log;
 
+/*
+ * userspace-provided audio timestamp config to kernel,
+ * structure is for internal use only and filled with dedicated unpack routine
+ */
+struct snd_pcm_audio_tstamp_config {
+	/* 5 of max 16 bits used */
+	u32 type_requested:4;
+	u32 report_delay:1; /* add total delay to A/D or D/A */
+};
+
+static inline void snd_pcm_unpack_audio_tstamp_config(__u32 data,
+						struct snd_pcm_audio_tstamp_config *config)
+{
+	config->type_requested = data & 0xF;
+	config->report_delay = (data >> 4) & 1;
+}
+
+/*
+ * kernel-provided audio timestamp report to user-space
+ * structure is for internal use only and read by dedicated pack routine
+ */
+struct snd_pcm_audio_tstamp_report {
+	/* 6 of max 16 bits used for bit-fields */
+
+	/* for backwards compatibility */
+	u32 valid:1;
+
+	/* actual type if hardware could not support requested timestamp */
+	u32 actual_type:4;
+
+	/* accuracy represented in ns units */
+	u32 accuracy_report:1; /* 0 if accuracy unknown, 1 if accuracy field is valid */
+	u32 accuracy; /* up to 4.29s, will be packed in separate field  */
+};
+
+static inline void snd_pcm_pack_audio_tstamp_report(__u32 *data, __u32 *accuracy,
+						const struct snd_pcm_audio_tstamp_report *report)
+{
+	u32 tmp;
+
+	tmp = report->accuracy_report;
+	tmp <<= 4;
+	tmp |= report->actual_type;
+	tmp <<= 1;
+	tmp |= report->valid;
+
+	*data &= 0xffff; /* zero-clear MSBs */
+	*data |= (tmp << 16);
+	*accuracy = report->accuracy;
+}
+
+
 struct snd_pcm_runtime {
 	/* -- Status -- */
 	struct snd_pcm_substream *trigger_master;
@@ -361,6 +418,11 @@ struct snd_pcm_runtime {
 
 	struct snd_dma_buffer *dma_buffer_p;	/* allocated buffer */
 
+	/* -- audio timestamp config -- */
+	struct snd_pcm_audio_tstamp_config audio_tstamp_config;
+	struct snd_pcm_audio_tstamp_report audio_tstamp_report;
+	struct timespec driver_tstamp;
+
 #if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
 	/* -- OSS things -- */
 	struct snd_pcm_oss_runtime oss;

include/sound/pcm_params.h

@@ -366,4 +366,11 @@ static inline int params_physical_width(const struct snd_pcm_hw_params *p)
 	return snd_pcm_format_physical_width(params_format(p));
 }
 
+static inline void
+params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt)
+{
+	snd_mask_set(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT),
+		(__force int)fmt);
+}
+
 #endif /* __SOUND_PCM_PARAMS_H */

include/sound/seq_device.h

@@ -25,29 +25,26 @@
  * registered device information
  */
 
-#define ID_LEN	32
-
-/* status flag */
-#define SNDRV_SEQ_DEVICE_FREE		0
-#define SNDRV_SEQ_DEVICE_REGISTERED	1
-
 struct snd_seq_device {
 	/* device info */
 	struct snd_card *card;	/* sound card */
 	int device;		/* device number */
-	char id[ID_LEN];	/* driver id */
+	const char *id;		/* driver id */
 	char name[80];		/* device name */
 	int argsize;		/* size of the argument */
 	void *driver_data;	/* private data for driver */
-	int status;		/* flag - read only */
 	void *private_data;	/* private data for the caller */
 	void (*private_free)(struct snd_seq_device *device);
-	struct list_head list;	/* link to next device */
+	struct device dev;
 };
 
+#define to_seq_dev(_dev) \
+	container_of(_dev, struct snd_seq_device, dev)
+
+/* sequencer driver */
 
 /* driver operators
- * init_device:
+ * probe:
  *	Initialize the device with given parameters.
  *	Typically,
  *		1. call snd_hwdep_new
@@ -55,25 +52,40 @@ struct snd_seq_device {
  *		3. call snd_hwdep_register
  *		4. store the instance to dev->driver_data pointer.
  *		
- * free_device:
+ * remove:
  *	Release the private data.
  *	Typically, call snd_device_free(dev->card, dev->driver_data)
  */
-struct snd_seq_dev_ops {
-	int (*init_device)(struct snd_seq_device *dev);
-	int (*free_device)(struct snd_seq_device *dev);
+struct snd_seq_driver {
+	struct device_driver driver;
+	char *id;
+	int argsize;
 };
 
+#define to_seq_drv(_drv) \
+	container_of(_drv, struct snd_seq_driver, driver)
+
 /*
  * prototypes
  */
+#ifdef CONFIG_MODULES
 void snd_seq_device_load_drivers(void);
-int snd_seq_device_new(struct snd_card *card, int device, char *id, int argsize, struct snd_seq_device **result);
-int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, int argsize);
-int snd_seq_device_unregister_driver(char *id);
+#else
+#define snd_seq_device_load_drivers()
+#endif
+int snd_seq_device_new(struct snd_card *card, int device, const char *id,
+		       int argsize, struct snd_seq_device **result);
 
 #define SNDRV_SEQ_DEVICE_ARGPTR(dev) (void *)((char *)(dev) + sizeof(struct snd_seq_device))
 
+int __must_check __snd_seq_driver_register(struct snd_seq_driver *drv,
+					   struct module *mod);
+#define snd_seq_driver_register(drv) \
+	__snd_seq_driver_register(drv, THIS_MODULE)
+void snd_seq_driver_unregister(struct snd_seq_driver *drv);
+
+#define module_snd_seq_driver(drv) \
+	module_driver(drv, snd_seq_driver_register, snd_seq_driver_unregister)
 
 /*
  * id strings for generic devices

include/sound/seq_kernel.h

@@ -99,13 +99,9 @@ int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,
 int snd_seq_event_port_detach(int client, int port);
 
 #ifdef CONFIG_MODULES
-void snd_seq_autoload_lock(void);
-void snd_seq_autoload_unlock(void);
 void snd_seq_autoload_init(void);
-#define snd_seq_autoload_exit()	snd_seq_autoload_lock()
+void snd_seq_autoload_exit(void);
 #else
-#define snd_seq_autoload_lock()
-#define snd_seq_autoload_unlock()
 #define snd_seq_autoload_init()
 #define snd_seq_autoload_exit()
 #endif

include/sound/soc.h

@@ -450,8 +450,10 @@ int soc_dai_hw_params(struct snd_pcm_substream *substream,
 		      struct snd_soc_dai *dai);
 
 /* Jack reporting */
-int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
-		     struct snd_soc_jack *jack);
+int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
+	struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins,
+	unsigned int num_pins);
+
 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 			  struct snd_soc_jack_pin *pins);
@@ -659,7 +661,7 @@ struct snd_soc_jack_gpio {
 struct snd_soc_jack {
 	struct mutex mutex;
 	struct snd_jack *jack;
-	struct snd_soc_codec *codec;
+	struct snd_soc_card *card;
 	struct list_head pins;
 	int status;
 	struct blocking_notifier_head notifier;
@@ -954,6 +956,9 @@ struct snd_soc_dai_link {
 	unsigned int symmetric_channels:1;
 	unsigned int symmetric_samplebits:1;
 
+	/* Mark this pcm with non atomic ops */
+	bool nonatomic;
+
 	/* Do not create a PCM for this DAI link (Backend link) */
 	unsigned int no_pcm:1;
 
@@ -1071,11 +1076,16 @@ struct snd_soc_card {
 
 	/*
 	 * Card-specific routes and widgets.
+	 * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in.
 	 */
 	const struct snd_soc_dapm_widget *dapm_widgets;
 	int num_dapm_widgets;
 	const struct snd_soc_dapm_route *dapm_routes;
 	int num_dapm_routes;
+	const struct snd_soc_dapm_widget *of_dapm_widgets;
+	int num_of_dapm_widgets;
+	const struct snd_soc_dapm_route *of_dapm_routes;
+	int num_of_dapm_routes;
 	bool fully_routed;
 
 	struct work_struct deferred_resume_work;
@@ -1469,7 +1479,7 @@ static inline struct snd_soc_codec *snd_soc_kcontrol_codec(
 }
 
 /**
- * snd_soc_kcontrol_platform() - Returns the platform that registerd the control
+ * snd_soc_kcontrol_platform() - Returns the platform that registered the control
  * @kcontrol: The control for which to get the platform
  *
  * Note: This function will only work correctly if the control has been

include/uapi/sound/asequencer.h

@@ -22,6 +22,7 @@
 #ifndef _UAPI__SOUND_ASEQUENCER_H
 #define _UAPI__SOUND_ASEQUENCER_H
 
+#include <sound/asound.h>
 
 /** version of the sequencer */
 #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)

include/uapi/sound/asound.h

@@ -25,6 +25,9 @@
 
 #include <linux/types.h>
 
+#ifndef __KERNEL__
+#include <stdlib.h>
+#endif
 
 /*
  *  protocol version
@@ -140,7 +143,7 @@ struct snd_hwdep_dsp_image {
  *                                                                           *
  *****************************************************************************/
 
-#define SNDRV_PCM_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 12)
+#define SNDRV_PCM_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 13)
 
 typedef unsigned long snd_pcm_uframes_t;
 typedef signed long snd_pcm_sframes_t;
@@ -267,10 +270,17 @@ typedef int __bitwise snd_pcm_subformat_t;
 #define SNDRV_PCM_INFO_JOINT_DUPLEX	0x00200000	/* playback and capture stream are somewhat correlated */
 #define SNDRV_PCM_INFO_SYNC_START	0x00400000	/* pcm support some kind of sync go */
 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP	0x00800000	/* period wakeup can be disabled */
-#define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* has audio wall clock for audio/system time sync */
+#define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
+#define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
+#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
+#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
+#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
+
 #define SNDRV_PCM_INFO_DRAIN_TRIGGER	0x40000000		/* internal kernel flag - trigger in drain */
 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES	0x80000000	/* internal kernel flag - FIFO size is in frames */
 
+
+
 typedef int __bitwise snd_pcm_state_t;
 #define	SNDRV_PCM_STATE_OPEN		((__force snd_pcm_state_t) 0) /* stream is open */
 #define	SNDRV_PCM_STATE_SETUP		((__force snd_pcm_state_t) 1) /* stream has a setup */
@@ -408,6 +418,22 @@ struct snd_pcm_channel_info {
 	unsigned int step;		/* samples distance in bits */
 };
 
+enum {
+	/*
+	 *  first definition for backwards compatibility only,
+	 *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
+	 */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
+
+	/* timestamp definitions */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,	           /* link time reported by sample or wallclock counter, reset on startup */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,	   /* link time reported by sample or wallclock counter, not reset on startup */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
+	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
+};
+
 struct snd_pcm_status {
 	snd_pcm_state_t state;		/* stream state */
 	struct timespec trigger_tstamp;	/* time when stream was started/stopped/paused */
@@ -419,9 +445,11 @@ struct snd_pcm_status {
 	snd_pcm_uframes_t avail_max;	/* max frames available on hw since last status */
 	snd_pcm_uframes_t overrange;	/* count of ADC (capture) overrange detections from last status */
 	snd_pcm_state_t suspended_state; /* suspended stream state */
-	__u32 reserved_alignment;	/* must be filled with zero */
-	struct timespec audio_tstamp;	/* from sample counter or wall clock */
-	unsigned char reserved[56-sizeof(struct timespec)]; /* must be filled with zero */
+	__u32 audio_tstamp_data;	 /* needed for 64-bit alignment, used for configs/report to/from userspace */
+	struct timespec audio_tstamp;	/* sample counter, wall clock, PHC or on-demand sync'ed */
+	struct timespec driver_tstamp;	/* useful in case reference system tstamp is reported with delay */
+	__u32 audio_tstamp_accuracy;	/* in ns units, only valid if indicated in audio_tstamp_data */
+	unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
 };
 
 struct snd_pcm_mmap_status {
@@ -534,6 +562,7 @@ enum {
 #define SNDRV_PCM_IOCTL_DELAY		_IOR('A', 0x21, snd_pcm_sframes_t)
 #define SNDRV_PCM_IOCTL_HWSYNC		_IO('A', 0x22)
 #define SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct snd_pcm_sync_ptr)
+#define SNDRV_PCM_IOCTL_STATUS_EXT	_IOWR('A', 0x24, struct snd_pcm_status)
 #define SNDRV_PCM_IOCTL_CHANNEL_INFO	_IOR('A', 0x32, struct snd_pcm_channel_info)
 #define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)
 #define SNDRV_PCM_IOCTL_RESET		_IO('A', 0x41)

include/uapi/sound/compress_offload.h

@@ -75,7 +75,7 @@ struct snd_compr_tstamp {
 /**
  * struct snd_compr_avail - avail descriptor
  * @avail: Number of bytes available in ring buffer for writing/reading
- * @tstamp: timestamp infomation
+ * @tstamp: timestamp information
  */
 struct snd_compr_avail {
 	__u64 avail;

include/uapi/sound/emu10k1.h

@@ -23,8 +23,7 @@
 #define _UAPI__SOUND_EMU10K1_H
 
 #include <linux/types.h>
-
-
+#include <sound/asound.h>
 
 /*
  * ---- FX8010 ----

include/uapi/sound/hdspm.h

@@ -20,6 +20,12 @@
  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+
 /* Maximum channels is 64 even on 56Mode you have 64playbacks to matrix */
 #define HDSPM_MAX_CHANNELS      64
 

sound/Kconfig

@@ -76,6 +76,8 @@ source "sound/isa/Kconfig"
 
 source "sound/pci/Kconfig"
 
+source "sound/hda/Kconfig"
+
 source "sound/ppc/Kconfig"
 
 source "sound/aoa/Kconfig"

sound/Makefile

@@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o
 obj-$(CONFIG_SOUND_PRIME) += oss/
 obj-$(CONFIG_DMASOUND) += oss/
 obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
-	firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
+	firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ hda/
 obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out

sound/aoa/soundbus/i2sbus/core.c

@@ -31,7 +31,7 @@ module_param(force, int, 0444);
 MODULE_PARM_DESC(force, "Force loading i2sbus even when"
 			" no layout-id property is present");
 
-static struct of_device_id i2sbus_match[] = {
+static const struct of_device_id i2sbus_match[] = {
 	{ .name = "i2s" },
 	{ }
 };

sound/core/control.c

@@ -192,36 +192,41 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
 EXPORT_SYMBOL(snd_ctl_notify);
 
 /**
- * snd_ctl_new - create a control instance from the template
- * @control: the control template
- * @access: the default control access
+ * snd_ctl_new - create a new control instance with some elements
+ * @kctl: the pointer to store new control instance
+ * @count: the number of elements in this control
+ * @access: the default access flags for elements in this control
+ * @file: given when locking these elements
  *
- * Allocates a new struct snd_kcontrol instance and copies the given template 
- * to the new instance. It does not copy volatile data (access).
+ * Allocates a memory object for a new control instance. The instance has
+ * elements as many as the given number (@count). Each element has given
+ * access permissions (@access). Each element is locked when @file is given.
  *
- * Return: The pointer of the new instance, or %NULL on failure.
+ * Return: 0 on success, error code on failure
  */
-static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control,
-					unsigned int access)
+static int snd_ctl_new(struct snd_kcontrol **kctl, unsigned int count,
+		       unsigned int access, struct snd_ctl_file *file)
 {
-	struct snd_kcontrol *kctl;
+	unsigned int size;
 	unsigned int idx;
 	
-	if (snd_BUG_ON(!control || !control->count))
-		return NULL;
+	if (count == 0 || count > MAX_CONTROL_COUNT)
+		return -EINVAL;
 
-	if (control->count > MAX_CONTROL_COUNT)
-		return NULL;
+	size  = sizeof(struct snd_kcontrol);
+	size += sizeof(struct snd_kcontrol_volatile) * count;
 
-	kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL);
-	if (kctl == NULL) {
-		pr_err("ALSA: Cannot allocate control instance\n");
-		return NULL;
+	*kctl = kzalloc(size, GFP_KERNEL);
+	if (!*kctl)
+		return -ENOMEM;
+
+	for (idx = 0; idx < count; idx++) {
+		(*kctl)->vd[idx].access = access;
+		(*kctl)->vd[idx].owner = file;
 	}
-	*kctl = *control;
-	for (idx = 0; idx < kctl->count; idx++)
-		kctl->vd[idx].access = access;
-	return kctl;
+	(*kctl)->count = count;
+
+	return 0;
 }
 
 /**
@@ -238,37 +243,53 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control,
 struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol,
 				  void *private_data)
 {
-	struct snd_kcontrol kctl;
+	struct snd_kcontrol *kctl;
+	unsigned int count;
 	unsigned int access;
+	int err;
 	
 	if (snd_BUG_ON(!ncontrol || !ncontrol->info))
 		return NULL;
-	memset(&kctl, 0, sizeof(kctl));
-	kctl.id.iface = ncontrol->iface;
-	kctl.id.device = ncontrol->device;
-	kctl.id.subdevice = ncontrol->subdevice;
+
+	count = ncontrol->count;
+	if (count == 0)
+		count = 1;
+
+	access = ncontrol->access;
+	if (access == 0)
+		access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+	access &= (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+		   SNDRV_CTL_ELEM_ACCESS_VOLATILE |
+		   SNDRV_CTL_ELEM_ACCESS_INACTIVE |
+		   SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE |
+		   SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND |
+		   SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK);
+
+	err = snd_ctl_new(&kctl, count, access, NULL);
+	if (err < 0)
+		return NULL;
+
+	/* The 'numid' member is decided when calling snd_ctl_add(). */
+	kctl->id.iface = ncontrol->iface;
+	kctl->id.device = ncontrol->device;
+	kctl->id.subdevice = ncontrol->subdevice;
 	if (ncontrol->name) {
-		strlcpy(kctl.id.name, ncontrol->name, sizeof(kctl.id.name));
-		if (strcmp(ncontrol->name, kctl.id.name) != 0)
+		strlcpy(kctl->id.name, ncontrol->name, sizeof(kctl->id.name));
+		if (strcmp(ncontrol->name, kctl->id.name) != 0)
 			pr_warn("ALSA: Control name '%s' truncated to '%s'\n",
-				ncontrol->name, kctl.id.name);
+				ncontrol->name, kctl->id.name);
 	}
-	kctl.id.index = ncontrol->index;
-	kctl.count = ncontrol->count ? ncontrol->count : 1;
-	access = ncontrol->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
-		 (ncontrol->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
-				      SNDRV_CTL_ELEM_ACCESS_VOLATILE|
-				      SNDRV_CTL_ELEM_ACCESS_INACTIVE|
-				      SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE|
-				      SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND|
-				      SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK));
-	kctl.info = ncontrol->info;
-	kctl.get = ncontrol->get;
-	kctl.put = ncontrol->put;
-	kctl.tlv.p = ncontrol->tlv.p;
-	kctl.private_value = ncontrol->private_value;
-	kctl.private_data = private_data;
-	return snd_ctl_new(&kctl, access);
+	kctl->id.index = ncontrol->index;
+
+	kctl->info = ncontrol->info;
+	kctl->get = ncontrol->get;
+	kctl->put = ncontrol->put;
+	kctl->tlv.p = ncontrol->tlv.p;
+
+	kctl->private_value = ncontrol->private_value;
+	kctl->private_data = private_data;
+
+	return kctl;
 }
 EXPORT_SYMBOL(snd_ctl_new1);
 
@@ -557,6 +578,7 @@ error:
  *
  * Finds the control instance with the given id, and activate or
  * inactivate the control together with notification, if changed.
+ * The given ID data is filled with full information.
  *
  * Return: 0 if unchanged, 1 if changed, or a negative error code on failure.
  */
@@ -586,6 +608,7 @@ int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id,
 			goto unlock;
 		vd->access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 	}
+	snd_ctl_build_ioff(id, kctl, index_offset);
 	ret = 1;
  unlock:
 	up_write(&card->controls_rwsem);
@@ -1017,8 +1040,12 @@ static int snd_ctl_elem_user_info(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_info *uinfo)
 {
 	struct user_element *ue = kcontrol->private_data;
+	unsigned int offset;
 
+	offset = snd_ctl_get_ioff(kcontrol, &uinfo->id);
 	*uinfo = ue->info;
+	snd_ctl_build_ioff(&uinfo->id, kcontrol, offset);
+
 	return 0;
 }
 
@@ -1028,10 +1055,13 @@ static int snd_ctl_elem_user_enum_info(struct snd_kcontrol *kcontrol,
 	struct user_element *ue = kcontrol->private_data;
 	const char *names;
 	unsigned int item;
+	unsigned int offset;
 
 	item = uinfo->value.enumerated.item;
 
+	offset = snd_ctl_get_ioff(kcontrol, &uinfo->id);
 	*uinfo = ue->info;
+	snd_ctl_build_ioff(&uinfo->id, kcontrol, offset);
 
 	item = min(item, uinfo->value.enumerated.items - 1);
 	uinfo->value.enumerated.item = item;
@@ -1078,7 +1108,7 @@ static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
 	int change = 0;
 	void *new_data;
 
-	if (op_flag > 0) {
+	if (op_flag == SNDRV_CTL_TLV_OP_WRITE) {
 		if (size > 1024 * 128)	/* sane value */
 			return -EINVAL;
 
@@ -1161,84 +1191,103 @@ static void snd_ctl_elem_user_free(struct snd_kcontrol *kcontrol)
 static int snd_ctl_elem_add(struct snd_ctl_file *file,
 			    struct snd_ctl_elem_info *info, int replace)
 {
+	/* The capacity of struct snd_ctl_elem_value.value.*/
+	static const unsigned int value_sizes[] = {
+		[SNDRV_CTL_ELEM_TYPE_BOOLEAN]	= sizeof(long),
+		[SNDRV_CTL_ELEM_TYPE_INTEGER]	= sizeof(long),
+		[SNDRV_CTL_ELEM_TYPE_ENUMERATED] = sizeof(unsigned int),
+		[SNDRV_CTL_ELEM_TYPE_BYTES]	= sizeof(unsigned char),
+		[SNDRV_CTL_ELEM_TYPE_IEC958]	= sizeof(struct snd_aes_iec958),
+		[SNDRV_CTL_ELEM_TYPE_INTEGER64] = sizeof(long long),
+	};
+	static const unsigned int max_value_counts[] = {
+		[SNDRV_CTL_ELEM_TYPE_BOOLEAN]	= 128,
+		[SNDRV_CTL_ELEM_TYPE_INTEGER]	= 128,
+		[SNDRV_CTL_ELEM_TYPE_ENUMERATED] = 128,
+		[SNDRV_CTL_ELEM_TYPE_BYTES]	= 512,
+		[SNDRV_CTL_ELEM_TYPE_IEC958]	= 1,
+		[SNDRV_CTL_ELEM_TYPE_INTEGER64] = 64,
+	};
 	struct snd_card *card = file->card;
-	struct snd_kcontrol kctl, *_kctl;
+	struct snd_kcontrol *kctl;
+	unsigned int count;
 	unsigned int access;
 	long private_size;
 	struct user_element *ue;
-	int idx, err;
+	unsigned int offset;
+	int err;
 
-	if (info->count < 1)
-		return -EINVAL;
 	if (!*info->id.name)
 		return -EINVAL;
 	if (strnlen(info->id.name, sizeof(info->id.name)) >= sizeof(info->id.name))
 		return -EINVAL;
-	access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
-		(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
-				 SNDRV_CTL_ELEM_ACCESS_INACTIVE|
-				 SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
-	info->id.numid = 0;
-	memset(&kctl, 0, sizeof(kctl));
 
+	/* Delete a control to replace them if needed. */
 	if (replace) {
+		info->id.numid = 0;
 		err = snd_ctl_remove_user_ctl(file, &info->id);
 		if (err)
 			return err;
 	}
 
-	if (card->user_ctl_count >= MAX_USER_CONTROLS)
+	/*
+	 * The number of userspace controls are counted control by control,
+	 * not element by element.
+	 */
+	if (card->user_ctl_count + 1 > MAX_USER_CONTROLS)
 		return -ENOMEM;
 
-	memcpy(&kctl.id, &info->id, sizeof(info->id));
-	kctl.count = info->owner ? info->owner : 1;
-	access |= SNDRV_CTL_ELEM_ACCESS_USER;
-	if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED)
-		kctl.info = snd_ctl_elem_user_enum_info;
-	else
-		kctl.info = snd_ctl_elem_user_info;
-	if (access & SNDRV_CTL_ELEM_ACCESS_READ)
-		kctl.get = snd_ctl_elem_user_get;
-	if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
-		kctl.put = snd_ctl_elem_user_put;
-	if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE) {
-		kctl.tlv.c = snd_ctl_elem_user_tlv;
+	/* Check the number of elements for this userspace control. */
+	count = info->owner;
+	if (count == 0)
+		count = 1;
+
+	/* Arrange access permissions if needed. */
+	access = info->access;
+	if (access == 0)
+		access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+	access &= (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+		   SNDRV_CTL_ELEM_ACCESS_INACTIVE |
+		   SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE);
+	if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)
 		access |= SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
-	}
-	switch (info->type) {
-	case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
-	case SNDRV_CTL_ELEM_TYPE_INTEGER:
-		private_size = sizeof(long);
-		if (info->count > 128)
-			return -EINVAL;
-		break;
-	case SNDRV_CTL_ELEM_TYPE_INTEGER64:
-		private_size = sizeof(long long);
-		if (info->count > 64)
-			return -EINVAL;
-		break;
-	case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
-		private_size = sizeof(unsigned int);
-		if (info->count > 128 || info->value.enumerated.items == 0)
-			return -EINVAL;
-		break;
-	case SNDRV_CTL_ELEM_TYPE_BYTES:
-		private_size = sizeof(unsigned char);
-		if (info->count > 512)
-			return -EINVAL;
-		break;
-	case SNDRV_CTL_ELEM_TYPE_IEC958:
-		private_size = sizeof(struct snd_aes_iec958);
-		if (info->count != 1)
-			return -EINVAL;
-		break;
-	default:
+	access |= SNDRV_CTL_ELEM_ACCESS_USER;
+
+	/*
+	 * Check information and calculate the size of data specific to
+	 * this userspace control.
+	 */
+	if (info->type < SNDRV_CTL_ELEM_TYPE_BOOLEAN ||
+	    info->type > SNDRV_CTL_ELEM_TYPE_INTEGER64)
 		return -EINVAL;
-	}
-	private_size *= info->count;
-	ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
-	if (ue == NULL)
+	if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED &&
+	    info->value.enumerated.items == 0)
+		return -EINVAL;
+	if (info->count < 1 ||
+	    info->count > max_value_counts[info->type])
+		return -EINVAL;
+	private_size = value_sizes[info->type] * info->count;
+
+	/*
+	 * Keep memory object for this userspace control. After passing this
+	 * code block, the instance should be freed by snd_ctl_free_one().
+	 *
+	 * Note that these elements in this control are locked.
+	 */
+	err = snd_ctl_new(&kctl, count, access, file);
+	if (err < 0)
+		return err;
+	memcpy(&kctl->id, &info->id, sizeof(kctl->id));
+	kctl->private_data = kzalloc(sizeof(struct user_element) + private_size,
+				     GFP_KERNEL);
+	if (kctl->private_data == NULL) {
+		kfree(kctl);
 		return -ENOMEM;
+	}
+	kctl->private_free = snd_ctl_elem_user_free;
+
+	/* Set private data for this userspace control. */
+	ue = (struct user_element *)kctl->private_data;
 	ue->card = card;
 	ue->info = *info;
 	ue->info.access = 0;
@@ -1247,23 +1296,36 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
 	if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
 		err = snd_ctl_elem_init_enum_names(ue);
 		if (err < 0) {
-			kfree(ue);
+			snd_ctl_free_one(kctl);
 			return err;
 		}
 	}
-	kctl.private_free = snd_ctl_elem_user_free;
-	_kctl = snd_ctl_new(&kctl, access);
-	if (_kctl == NULL) {
-		kfree(ue->priv_data);
-		kfree(ue);
-		return -ENOMEM;
-	}
-	_kctl->private_data = ue;
-	for (idx = 0; idx < _kctl->count; idx++)
-		_kctl->vd[idx].owner = file;
-	err = snd_ctl_add(card, _kctl);
+
+	/* Set callback functions. */
+	if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED)
+		kctl->info = snd_ctl_elem_user_enum_info;
+	else
+		kctl->info = snd_ctl_elem_user_info;
+	if (access & SNDRV_CTL_ELEM_ACCESS_READ)
+		kctl->get = snd_ctl_elem_user_get;
+	if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
+		kctl->put = snd_ctl_elem_user_put;
+	if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)
+		kctl->tlv.c = snd_ctl_elem_user_tlv;
+
+	/* This function manage to free the instance on failure. */
+	err = snd_ctl_add(card, kctl);
 	if (err < 0)
 		return err;
+	offset = snd_ctl_get_ioff(kctl, &info->id);
+	snd_ctl_build_ioff(&info->id, kctl, offset);
+	/*
+	 * Here we cannot fill any field for the number of elements added by
+	 * this operation because there're no specific fields. The usage of
+	 * 'owner' field for this purpose may cause any bugs to userspace
+	 * applications because the field originally means PID of a process
+	 * which locks the element.
+	 */
 
 	down_write(&card->controls_rwsem);
 	card->user_ctl_count++;
@@ -1276,9 +1338,19 @@ static int snd_ctl_elem_add_user(struct snd_ctl_file *file,
 				 struct snd_ctl_elem_info __user *_info, int replace)
 {
 	struct snd_ctl_elem_info info;
+	int err;
+
 	if (copy_from_user(&info, _info, sizeof(info)))
 		return -EFAULT;
-	return snd_ctl_elem_add(file, &info, replace);
+	err = snd_ctl_elem_add(file, &info, replace);
+	if (err < 0)
+		return err;
+	if (copy_to_user(_info, &info, sizeof(info))) {
+		snd_ctl_remove_user_ctl(file, &info.id);
+		return -EFAULT;
+	}
+
+	return 0;
 }
 
 static int snd_ctl_elem_remove(struct snd_ctl_file *file,
@@ -1338,9 +1410,12 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
 		goto __kctl_end;
 	}
 	vd = &kctl->vd[tlv.numid - kctl->id.numid];
-	if ((op_flag == 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) == 0) ||
-	    (op_flag > 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) == 0) ||
-	    (op_flag < 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND) == 0)) {
+	if ((op_flag == SNDRV_CTL_TLV_OP_READ &&
+	     (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) == 0) ||
+	    (op_flag == SNDRV_CTL_TLV_OP_WRITE &&
+	     (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) == 0) ||
+	    (op_flag == SNDRV_CTL_TLV_OP_CMD &&
+	     (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND) == 0)) {
 	    	err = -ENXIO;
 	    	goto __kctl_end;
 	}
@@ -1357,7 +1432,7 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
 			return 0;
 		}
 	} else {
-		if (op_flag) {
+		if (op_flag != SNDRV_CTL_TLV_OP_READ) {
 			err = -ENXIO;
 			goto __kctl_end;
 		}

sound/core/device.c

@@ -50,10 +50,8 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type,
 	if (snd_BUG_ON(!card || !device_data || !ops))
 		return -ENXIO;
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (dev == NULL) {
-		dev_err(card->dev, "Cannot allocate device, type=%d\n", type);
+	if (!dev)
 		return -ENOMEM;
-	}
 	INIT_LIST_HEAD(&dev->list);
 	dev->card = card;
 	dev->type = type;
@@ -73,7 +71,7 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type,
 }
 EXPORT_SYMBOL(snd_device_new);
 
-static int __snd_device_disconnect(struct snd_device *dev)
+static void __snd_device_disconnect(struct snd_device *dev)
 {
 	if (dev->state == SNDRV_DEV_REGISTERED) {
 		if (dev->ops->dev_disconnect &&
@@ -81,7 +79,6 @@ static int __snd_device_disconnect(struct snd_device *dev)
 			dev_err(dev->card->dev, "device disconnect failure\n");
 		dev->state = SNDRV_DEV_DISCONNECTED;
 	}
-	return 0;
 }
 
 static void __snd_device_free(struct snd_device *dev)
@@ -108,6 +105,34 @@ static struct snd_device *look_for_dev(struct snd_card *card, void *device_data)
 	return NULL;
 }
 
+/**
+ * snd_device_disconnect - disconnect the device
+ * @card: the card instance
+ * @device_data: the data pointer to disconnect
+ *
+ * Turns the device into the disconnection state, invoking
+ * dev_disconnect callback, if the device was already registered.
+ *
+ * Usually called from snd_card_disconnect().
+ *
+ * Return: Zero if successful, or a negative error code on failure or if the
+ * device not found.
+ */
+void snd_device_disconnect(struct snd_card *card, void *device_data)
+{
+	struct snd_device *dev;
+
+	if (snd_BUG_ON(!card || !device_data))
+		return;
+	dev = look_for_dev(card, device_data);
+	if (dev)
+		__snd_device_disconnect(dev);
+	else
+		dev_dbg(card->dev, "device disconnect %p (from %pF), not found\n",
+			device_data, __builtin_return_address(0));
+}
+EXPORT_SYMBOL_GPL(snd_device_disconnect);
+
 /**
  * snd_device_free - release the device from the card
  * @card: the card instance
@@ -195,18 +220,14 @@ int snd_device_register_all(struct snd_card *card)
  * disconnect all the devices on the card.
  * called from init.c
  */
-int snd_device_disconnect_all(struct snd_card *card)
+void snd_device_disconnect_all(struct snd_card *card)
 {
 	struct snd_device *dev;
-	int err = 0;
 
 	if (snd_BUG_ON(!card))
-		return -ENXIO;
-	list_for_each_entry_reverse(dev, &card->devices, list) {
-		if (__snd_device_disconnect(dev) < 0)
-			err = -ENXIO;
-	}
-	return err;
+		return;
+	list_for_each_entry_reverse(dev, &card->devices, list)
+		__snd_device_disconnect(dev);
 }
 
 /*

sound/core/hwdep.c

@@ -378,10 +378,8 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device,
 	if (rhwdep)
 		*rhwdep = NULL;
 	hwdep = kzalloc(sizeof(*hwdep), GFP_KERNEL);
-	if (hwdep == NULL) {
-		dev_err(card->dev, "hwdep: cannot allocate\n");
+	if (!hwdep)
 		return -ENOMEM;
-	}
 
 	init_waitqueue_head(&hwdep->open_wait);
 	mutex_init(&hwdep->open_mutex);

sound/core/init.c

@@ -400,7 +400,6 @@ static const struct file_operations snd_shutdown_f_ops =
 int snd_card_disconnect(struct snd_card *card)
 {
 	struct snd_monitor_file *mfile;
-	int err;
 
 	if (!card)
 		return -EINVAL;
@@ -445,9 +444,7 @@ int snd_card_disconnect(struct snd_card *card)
 #endif
 
 	/* notify all devices that we are disconnected */
-	err = snd_device_disconnect_all(card);
-	if (err < 0)
-		dev_err(card->dev, "not all devices for card %i can be disconnected\n", card->number);
+	snd_device_disconnect_all(card);
 
 	snd_info_card_disconnect(card);
 	if (card->registered) {

sound/core/oss/mixer_oss.c

@@ -1212,10 +1212,8 @@ static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
 			/* not changed */
 			goto __unlock;
 		tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
-		if (! tbl) {
-			pr_err("ALSA: mixer_oss: no memory\n");
+		if (!tbl)
 			goto __unlock;
-		}
 		tbl->oss_id = ch;
 		tbl->name = kstrdup(str, GFP_KERNEL);
 		if (! tbl->name) {

sound/core/oss/pcm_oss.c

@@ -854,7 +854,6 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
 	sparams = kmalloc(sizeof(*sparams), GFP_KERNEL);
 	if (!sw_params || !params || !sparams) {
-		pcm_dbg(substream->pcm, "No memory\n");
 		err = -ENOMEM;
 		goto failure;
 	}

sound/core/pcm.c

@@ -49,8 +49,6 @@ static struct snd_pcm *snd_pcm_get(struct snd_card *card, int device)
 	struct snd_pcm *pcm;
 
 	list_for_each_entry(pcm, &snd_pcm_devices, list) {
-		if (pcm->internal)
-			continue;
 		if (pcm->card == card && pcm->device == device)
 			return pcm;
 	}
@@ -62,8 +60,6 @@ static int snd_pcm_next(struct snd_card *card, int device)
 	struct snd_pcm *pcm;
 
 	list_for_each_entry(pcm, &snd_pcm_devices, list) {
-		if (pcm->internal)
-			continue;
 		if (pcm->card == card && pcm->device > device)
 			return pcm->device;
 		else if (pcm->card->number > card->number)
@@ -76,6 +72,9 @@ static int snd_pcm_add(struct snd_pcm *newpcm)
 {
 	struct snd_pcm *pcm;
 
+	if (newpcm->internal)
+		return 0;
+
 	list_for_each_entry(pcm, &snd_pcm_devices, list) {
 		if (pcm->card == newpcm->card && pcm->device == newpcm->device)
 			return -EBUSY;
@@ -344,11 +343,8 @@ static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,
 		return;
 
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
-	if (! info) {
-		pcm_dbg(substream->pcm,
-			"snd_pcm_proc_info_read: cannot malloc\n");
+	if (!info)
 		return;
-	}
 
 	err = snd_pcm_info(substream, info);
 	if (err < 0) {
@@ -718,10 +714,8 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
 	prev = NULL;
 	for (idx = 0, prev = NULL; idx < substream_count; idx++) {
 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);
-		if (substream == NULL) {
-			pcm_err(pcm, "Cannot allocate PCM substream\n");
+		if (!substream)
 			return -ENOMEM;
-		}
 		substream->pcm = pcm;
 		substream->pstr = pstr;
 		substream->number = idx;
@@ -775,13 +769,14 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
 	if (rpcm)
 		*rpcm = NULL;
 	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
-	if (pcm == NULL) {
-		dev_err(card->dev, "Cannot allocate PCM\n");
+	if (!pcm)
 		return -ENOMEM;
-	}
 	pcm->card = card;
 	pcm->device = device;
 	pcm->internal = internal;
+	mutex_init(&pcm->open_mutex);
+	init_waitqueue_head(&pcm->open_wait);
+	INIT_LIST_HEAD(&pcm->list);
 	if (id)
 		strlcpy(pcm->id, id, sizeof(pcm->id));
 	if ((err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK, playback_count)) < 0) {
@@ -792,8 +787,6 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
 		snd_pcm_free(pcm);
 		return err;
 	}
-	mutex_init(&pcm->open_mutex);
-	init_waitqueue_head(&pcm->open_wait);
 	if ((err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops)) < 0) {
 		snd_pcm_free(pcm);
 		return err;
@@ -888,8 +881,9 @@ static int snd_pcm_free(struct snd_pcm *pcm)
 
 	if (!pcm)
 		return 0;
-	list_for_each_entry(notify, &snd_pcm_notify_list, list) {
-		notify->n_unregister(pcm);
+	if (!pcm->internal) {
+		list_for_each_entry(notify, &snd_pcm_notify_list, list)
+			notify->n_unregister(pcm);
 	}
 	if (pcm->private_free)
 		pcm->private_free(pcm);
@@ -919,6 +913,9 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
 
 	if (snd_BUG_ON(!pcm || !rsubstream))
 		return -ENXIO;
+	if (snd_BUG_ON(stream != SNDRV_PCM_STREAM_PLAYBACK &&
+		       stream != SNDRV_PCM_STREAM_CAPTURE))
+		return -EINVAL;
 	*rsubstream = NULL;
 	pstr = &pcm->streams[stream];
 	if (pstr->substream == NULL || pstr->substream_count == 0)
@@ -927,25 +924,14 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
 	card = pcm->card;
 	prefer_subdevice = snd_ctl_get_preferred_subdevice(card, SND_CTL_SUBDEV_PCM);
 
-	switch (stream) {
-	case SNDRV_PCM_STREAM_PLAYBACK:
-		if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {
-			for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next) {
-				if (SUBSTREAM_BUSY(substream))
-					return -EAGAIN;
-			}
-		}
-		break;
-	case SNDRV_PCM_STREAM_CAPTURE:
-		if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {
-			for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) {
-				if (SUBSTREAM_BUSY(substream))
-					return -EAGAIN;
-			}
+	if (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX) {
+		int opposite = !stream;
+
+		for (substream = pcm->streams[opposite].substream; substream;
+		     substream = substream->next) {
+			if (SUBSTREAM_BUSY(substream))
+				return -EAGAIN;
 		}
-		break;
-	default:
-		return -EINVAL;
 	}
 
 	if (file->f_flags & O_APPEND) {
@@ -968,15 +954,12 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
 		return 0;
 	}
 
-	if (prefer_subdevice >= 0) {
-		for (substream = pstr->substream; substream; substream = substream->next)
-			if (!SUBSTREAM_BUSY(substream) && substream->number == prefer_subdevice)
-				goto __ok;
-	}
-	for (substream = pstr->substream; substream; substream = substream->next)
-		if (!SUBSTREAM_BUSY(substream))
+	for (substream = pstr->substream; substream; substream = substream->next) {
+		if (!SUBSTREAM_BUSY(substream) &&
+		    (prefer_subdevice == -1 ||
+		     substream->number == prefer_subdevice))
 			break;
-      __ok:
+	}
 	if (substream == NULL)
 		return -EAGAIN;
 
@@ -1086,15 +1069,16 @@ static int snd_pcm_dev_register(struct snd_device *device)
 	if (snd_BUG_ON(!device || !device->device_data))
 		return -ENXIO;
 	pcm = device->device_data;
+	if (pcm->internal)
+		return 0;
+
 	mutex_lock(&register_mutex);
 	err = snd_pcm_add(pcm);
-	if (err) {
-		mutex_unlock(&register_mutex);
-		return err;
-	}
+	if (err)
+		goto unlock;
 	for (cidx = 0; cidx < 2; cidx++) {
 		int devtype = -1;
-		if (pcm->streams[cidx].substream == NULL || pcm->internal)
+		if (pcm->streams[cidx].substream == NULL)
 			continue;
 		switch (cidx) {
 		case SNDRV_PCM_STREAM_PLAYBACK:
@@ -1109,9 +1093,8 @@ static int snd_pcm_dev_register(struct snd_device *device)
 					  &snd_pcm_f_ops[cidx], pcm,
 					  &pcm->streams[cidx].dev);
 		if (err < 0) {
-			list_del(&pcm->list);
-			mutex_unlock(&register_mutex);
-			return err;
+			list_del_init(&pcm->list);
+			goto unlock;
 		}
 
 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
@@ -1121,8 +1104,9 @@ static int snd_pcm_dev_register(struct snd_device *device)
 	list_for_each_entry(notify, &snd_pcm_notify_list, list)
 		notify->n_register(pcm);
 
+ unlock:
 	mutex_unlock(&register_mutex);
-	return 0;
+	return err;
 }
 
 static int snd_pcm_dev_disconnect(struct snd_device *device)
@@ -1133,13 +1117,10 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 	int cidx;
 
 	mutex_lock(&register_mutex);
-	if (list_empty(&pcm->list))
-		goto unlock;
-
 	mutex_lock(&pcm->open_mutex);
 	wake_up(&pcm->open_wait);
 	list_del_init(&pcm->list);
-	for (cidx = 0; cidx < 2; cidx++)
+	for (cidx = 0; cidx < 2; cidx++) {
 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {
 			snd_pcm_stream_lock_irq(substream);
 			if (substream->runtime) {
@@ -1149,18 +1130,20 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 			}
 			snd_pcm_stream_unlock_irq(substream);
 		}
-	list_for_each_entry(notify, &snd_pcm_notify_list, list) {
-		notify->n_disconnect(pcm);
+	}
+	if (!pcm->internal) {
+		list_for_each_entry(notify, &snd_pcm_notify_list, list)
+			notify->n_disconnect(pcm);
 	}
 	for (cidx = 0; cidx < 2; cidx++) {
-		snd_unregister_device(&pcm->streams[cidx].dev);
+		if (!pcm->internal)
+			snd_unregister_device(&pcm->streams[cidx].dev);
 		if (pcm->streams[cidx].chmap_kctl) {
 			snd_ctl_remove(pcm->card, pcm->streams[cidx].chmap_kctl);
 			pcm->streams[cidx].chmap_kctl = NULL;
 		}
 	}
 	mutex_unlock(&pcm->open_mutex);
- unlock:
 	mutex_unlock(&register_mutex);
 	return 0;
 }

sound/core/pcm_compat.c

@@ -194,18 +194,30 @@ struct snd_pcm_status32 {
 	u32 avail_max;
 	u32 overrange;
 	s32 suspended_state;
-	u32 reserved_alignment;
+	u32 audio_tstamp_data;
 	struct compat_timespec audio_tstamp;
-	unsigned char reserved[56-sizeof(struct compat_timespec)];
+	struct compat_timespec driver_tstamp;
+	u32 audio_tstamp_accuracy;
+	unsigned char reserved[52-2*sizeof(struct compat_timespec)];
 } __attribute__((packed));
 
 
 static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
-				      struct snd_pcm_status32 __user *src)
+				      struct snd_pcm_status32 __user *src,
+				      bool ext)
 {
 	struct snd_pcm_status status;
 	int err;
 
+	memset(&status, 0, sizeof(status));
+	/*
+	 * with extension, parameters are read/write,
+	 * get audio_tstamp_data from user,
+	 * ignore rest of status structure
+	 */
+	if (ext && get_user(status.audio_tstamp_data,
+				(u32 __user *)(&src->audio_tstamp_data)))
+		return -EFAULT;
 	err = snd_pcm_status(substream, &status);
 	if (err < 0)
 		return err;
@@ -222,7 +234,10 @@ static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
 	    put_user(status.avail_max, &src->avail_max) ||
 	    put_user(status.overrange, &src->overrange) ||
 	    put_user(status.suspended_state, &src->suspended_state) ||
-	    compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp))
+	    put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
+	    compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
+	    compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
+	    put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
 		return -EFAULT;
 
 	return err;
@@ -457,6 +472,7 @@ enum {
 	SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
 	SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
 	SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32),
+	SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
 	SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
 	SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
 	SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
@@ -517,7 +533,9 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
 	case SNDRV_PCM_IOCTL_SW_PARAMS32:
 		return snd_pcm_ioctl_sw_params_compat(substream, argp);
 	case SNDRV_PCM_IOCTL_STATUS32:
-		return snd_pcm_status_user_compat(substream, argp);
+		return snd_pcm_status_user_compat(substream, argp, false);
+	case SNDRV_PCM_IOCTL_STATUS_EXT32:
+		return snd_pcm_status_user_compat(substream, argp, true);
 	case SNDRV_PCM_IOCTL_SYNC_PTR32:
 		return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
 	case SNDRV_PCM_IOCTL_CHANNEL_INFO32:

sound/core/pcm_dmaengine.c

@@ -289,7 +289,7 @@ EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_request_channel);
  *
  * The function should usually be called from the pcm open callback. Note that
  * this function will use private_data field of the substream's runtime. So it
- * is not availabe to your pcm driver implementation.
+ * is not available to your pcm driver implementation.
  */
 int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream,
 	struct dma_chan *chan)
@@ -328,7 +328,7 @@ EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open);
  * This function will request a DMA channel using the passed filter function and
  * data. The function should usually be called from the pcm open callback. Note
  * that this function will use private_data field of the substream's runtime. So
- * it is not availabe to your pcm driver implementation.
+ * it is not available to your pcm driver implementation.
  */
 int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream,
 	dma_filter_fn filter_fn, void *filter_data)

sound/core/pcm_lib.c

@@ -232,6 +232,49 @@ int snd_pcm_update_state(struct snd_pcm_substream *substream,
 	return 0;
 }
 
+static void update_audio_tstamp(struct snd_pcm_substream *substream,
+				struct timespec *curr_tstamp,
+				struct timespec *audio_tstamp)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	u64 audio_frames, audio_nsecs;
+	struct timespec driver_tstamp;
+
+	if (runtime->tstamp_mode != SNDRV_PCM_TSTAMP_ENABLE)
+		return;
+
+	if (!(substream->ops->get_time_info) ||
+		(runtime->audio_tstamp_report.actual_type ==
+			SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT)) {
+
+		/*
+		 * provide audio timestamp derived from pointer position
+		 * add delay only if requested
+		 */
+
+		audio_frames = runtime->hw_ptr_wrap + runtime->status->hw_ptr;
+
+		if (runtime->audio_tstamp_config.report_delay) {
+			if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+				audio_frames -=  runtime->delay;
+			else
+				audio_frames +=  runtime->delay;
+		}
+		audio_nsecs = div_u64(audio_frames * 1000000000LL,
+				runtime->rate);
+		*audio_tstamp = ns_to_timespec(audio_nsecs);
+	}
+	runtime->status->audio_tstamp = *audio_tstamp;
+	runtime->status->tstamp = *curr_tstamp;
+
+	/*
+	 * re-take a driver timestamp to let apps detect if the reference tstamp
+	 * read by low-level hardware was provided with a delay
+	 */
+	snd_pcm_gettime(substream->runtime, (struct timespec *)&driver_tstamp);
+	runtime->driver_tstamp = driver_tstamp;
+}
+
 static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 				  unsigned int in_interrupt)
 {
@@ -256,11 +299,18 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 	pos = substream->ops->pointer(substream);
 	curr_jiffies = jiffies;
 	if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
-		snd_pcm_gettime(runtime, (struct timespec *)&curr_tstamp);
-
-		if ((runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK) &&
-			(substream->ops->wall_clock))
-			substream->ops->wall_clock(substream, &audio_tstamp);
+		if ((substream->ops->get_time_info) &&
+			(runtime->audio_tstamp_config.type_requested != SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT)) {
+			substream->ops->get_time_info(substream, &curr_tstamp,
+						&audio_tstamp,
+						&runtime->audio_tstamp_config,
+						&runtime->audio_tstamp_report);
+
+			/* re-test in case tstamp type is not supported in hardware and was demoted to DEFAULT */
+			if (runtime->audio_tstamp_report.actual_type == SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT)
+				snd_pcm_gettime(runtime, (struct timespec *)&curr_tstamp);
+		} else
+			snd_pcm_gettime(runtime, (struct timespec *)&curr_tstamp);
 	}
 
 	if (pos == SNDRV_PCM_POS_XRUN) {
@@ -403,8 +453,10 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 	}
 
  no_delta_check:
-	if (runtime->status->hw_ptr == new_hw_ptr)
+	if (runtime->status->hw_ptr == new_hw_ptr) {
+		update_audio_tstamp(substream, &curr_tstamp, &audio_tstamp);
 		return 0;
+	}
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
 	    runtime->silence_size > 0)
@@ -426,30 +478,8 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
 		snd_BUG_ON(crossed_boundary != 1);
 		runtime->hw_ptr_wrap += runtime->boundary;
 	}
-	if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
-		runtime->status->tstamp = curr_tstamp;
 
-		if (!(runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK)) {
-			/*
-			 * no wall clock available, provide audio timestamp
-			 * derived from pointer position+delay
-			 */
-			u64 audio_frames, audio_nsecs;
-
-			if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-				audio_frames = runtime->hw_ptr_wrap
-					+ runtime->status->hw_ptr
-					- runtime->delay;
-			else
-				audio_frames = runtime->hw_ptr_wrap
-					+ runtime->status->hw_ptr
-					+ runtime->delay;
-			audio_nsecs = div_u64(audio_frames * 1000000000LL,
-					runtime->rate);
-			audio_tstamp = ns_to_timespec(audio_nsecs);
-		}
-		runtime->status->audio_tstamp = audio_tstamp;
-	}
+	update_audio_tstamp(substream, &curr_tstamp, &audio_tstamp);
 
 	return snd_pcm_update_state(substream, runtime);
 }

sound/core/pcm_native.c

@@ -707,6 +707,23 @@ int snd_pcm_status(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 
 	snd_pcm_stream_lock_irq(substream);
+
+	snd_pcm_unpack_audio_tstamp_config(status->audio_tstamp_data,
+					&runtime->audio_tstamp_config);
+
+	/* backwards compatible behavior */
+	if (runtime->audio_tstamp_config.type_requested ==
+		SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT) {
+		if (runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK)
+			runtime->audio_tstamp_config.type_requested =
+				SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK;
+		else
+			runtime->audio_tstamp_config.type_requested =
+				SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT;
+		runtime->audio_tstamp_report.valid = 0;
+	} else
+		runtime->audio_tstamp_report.valid = 1;
+
 	status->state = runtime->status->state;
 	status->suspended_state = runtime->status->suspended_state;
 	if (status->state == SNDRV_PCM_STATE_OPEN)
@@ -716,8 +733,15 @@ int snd_pcm_status(struct snd_pcm_substream *substream,
 		snd_pcm_update_hw_ptr(substream);
 		if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
 			status->tstamp = runtime->status->tstamp;
+			status->driver_tstamp = runtime->driver_tstamp;
 			status->audio_tstamp =
 				runtime->status->audio_tstamp;
+			if (runtime->audio_tstamp_report.valid == 1)
+				/* backwards compatibility, no report provided in COMPAT mode */
+				snd_pcm_pack_audio_tstamp_report(&status->audio_tstamp_data,
+								&status->audio_tstamp_accuracy,
+								&runtime->audio_tstamp_report);
+
 			goto _tstamp_end;
 		}
 	} else {
@@ -753,12 +777,21 @@ int snd_pcm_status(struct snd_pcm_substream *substream,
 }
 
 static int snd_pcm_status_user(struct snd_pcm_substream *substream,
-			       struct snd_pcm_status __user * _status)
+			       struct snd_pcm_status __user * _status,
+			       bool ext)
 {
 	struct snd_pcm_status status;
 	int res;
-	
+
 	memset(&status, 0, sizeof(status));
+	/*
+	 * with extension, parameters are read/write,
+	 * get audio_tstamp_data from user,
+	 * ignore rest of status structure
+	 */
+	if (ext && get_user(status.audio_tstamp_data,
+				(u32 __user *)(&_status->audio_tstamp_data)))
+		return -EFAULT;
 	res = snd_pcm_status(substream, &status);
 	if (res < 0)
 		return res;
@@ -2725,7 +2758,9 @@ static int snd_pcm_common_ioctl1(struct file *file,
 	case SNDRV_PCM_IOCTL_SW_PARAMS:
 		return snd_pcm_sw_params_user(substream, arg);
 	case SNDRV_PCM_IOCTL_STATUS:
-		return snd_pcm_status_user(substream, arg);
+		return snd_pcm_status_user(substream, arg, false);
+	case SNDRV_PCM_IOCTL_STATUS_EXT:
+		return snd_pcm_status_user(substream, arg, true);
 	case SNDRV_PCM_IOCTL_CHANNEL_INFO:
 		return snd_pcm_channel_info_user(substream, arg);
 	case SNDRV_PCM_IOCTL_PREPARE:

sound/core/rawmidi.c

@@ -1429,10 +1429,8 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi,
 
 	for (idx = 0; idx < count; idx++) {
 		substream = kzalloc(sizeof(*substream), GFP_KERNEL);
-		if (substream == NULL) {
-			rmidi_err(rmidi, "rawmidi: cannot allocate substream\n");
+		if (!substream)
 			return -ENOMEM;
-		}
 		substream->stream = direction;
 		substream->number = idx;
 		substream->rmidi = rmidi;
@@ -1479,10 +1477,8 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
 	if (rrawmidi)
 		*rrawmidi = NULL;
 	rmidi = kzalloc(sizeof(*rmidi), GFP_KERNEL);
-	if (rmidi == NULL) {
-		dev_err(card->dev, "rawmidi: cannot allocate\n");
+	if (!rmidi)
 		return -ENOMEM;
-	}
 	rmidi->card = card;
 	rmidi->device = device;
 	mutex_init(&rmidi->open_mutex);

sound/core/seq/oss/seq_oss.c

@@ -65,15 +65,20 @@ static unsigned int odev_poll(struct file *file, poll_table * wait);
  * module interface
  */
 
+static struct snd_seq_driver seq_oss_synth_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_seq_oss_synth_probe,
+		.remove = snd_seq_oss_synth_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_OSS,
+	.argsize = sizeof(struct snd_seq_oss_reg),
+};
+
 static int __init alsa_seq_oss_init(void)
 {
 	int rc;
-	static struct snd_seq_dev_ops ops = {
-		snd_seq_oss_synth_register,
-		snd_seq_oss_synth_unregister,
-	};
 
-	snd_seq_autoload_lock();
 	if ((rc = register_device()) < 0)
 		goto error;
 	if ((rc = register_proc()) < 0) {
@@ -86,8 +91,8 @@ static int __init alsa_seq_oss_init(void)
 		goto error;
 	}
 
-	if ((rc = snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OSS, &ops,
-						 sizeof(struct snd_seq_oss_reg))) < 0) {
+	rc = snd_seq_driver_register(&seq_oss_synth_driver);
+	if (rc < 0) {
 		snd_seq_oss_delete_client();
 		unregister_proc();
 		unregister_device();
@@ -98,13 +103,12 @@ static int __init alsa_seq_oss_init(void)
 	snd_seq_oss_synth_init();
 
  error:
-	snd_seq_autoload_unlock();
 	return rc;
 }
 
 static void __exit alsa_seq_oss_exit(void)
 {
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OSS);
+	snd_seq_driver_unregister(&seq_oss_synth_driver);
 	snd_seq_oss_delete_client();
 	unregister_proc();
 	unregister_device();

sound/core/seq/oss/seq_oss_init.c

@@ -188,10 +188,8 @@ snd_seq_oss_open(struct file *file, int level)
 	struct seq_oss_devinfo *dp;
 
 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);
-	if (!dp) {
-		pr_err("ALSA: seq_oss: can't malloc device info\n");
+	if (!dp)
 		return -ENOMEM;
-	}
 
 	dp->cseq = system_client;
 	dp->port = -1;

sound/core/seq/oss/seq_oss_midi.c

@@ -173,10 +173,9 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo)
 	/*
 	 * allocate midi info record
 	 */
-	if ((mdev = kzalloc(sizeof(*mdev), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc midi info\n");
+	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+	if (!mdev)
 		return -ENOMEM;
-	}
 
 	/* copy the port information */
 	mdev->client = pinfo->addr.client;

sound/core/seq/oss/seq_oss_readq.c

@@ -47,13 +47,12 @@ snd_seq_oss_readq_new(struct seq_oss_devinfo *dp, int maxlen)
 {
 	struct seq_oss_readq *q;
 
-	if ((q = kzalloc(sizeof(*q), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc read queue\n");
+	q = kzalloc(sizeof(*q), GFP_KERNEL);
+	if (!q)
 		return NULL;
-	}
 
-	if ((q->q = kcalloc(maxlen, sizeof(union evrec), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc read queue buffer\n");
+	q->q = kcalloc(maxlen, sizeof(union evrec), GFP_KERNEL);
+	if (!q->q) {
 		kfree(q);
 		return NULL;
 	}

sound/core/seq/oss/seq_oss_synth.c

@@ -98,17 +98,17 @@ snd_seq_oss_synth_init(void)
  * registration of the synth device
  */
 int
-snd_seq_oss_synth_register(struct snd_seq_device *dev)
+snd_seq_oss_synth_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	int i;
 	struct seq_oss_synth *rec;
 	struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
 	unsigned long flags;
 
-	if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc synth info\n");
+	rec = kzalloc(sizeof(*rec), GFP_KERNEL);
+	if (!rec)
 		return -ENOMEM;
-	}
 	rec->seq_device = -1;
 	rec->synth_type = reg->type;
 	rec->synth_subtype = reg->subtype;
@@ -149,8 +149,9 @@ snd_seq_oss_synth_register(struct snd_seq_device *dev)
 
 
 int
-snd_seq_oss_synth_unregister(struct snd_seq_device *dev)
+snd_seq_oss_synth_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	int index;
 	struct seq_oss_synth *rec = dev->driver_data;
 	unsigned long flags;
@@ -247,7 +248,6 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
 		if (info->nr_voices > 0) {
 			info->ch = kcalloc(info->nr_voices, sizeof(struct seq_oss_chinfo), GFP_KERNEL);
 			if (!info->ch) {
-				pr_err("ALSA: seq_oss: Cannot malloc voices\n");
 				rec->oper.close(&info->arg);
 				module_put(rec->oper.owner);
 				snd_use_lock_free(&rec->use_lock);

sound/core/seq/oss/seq_oss_synth.h

@@ -28,8 +28,8 @@
 #include <sound/seq_device.h>
 
 void snd_seq_oss_synth_init(void);
-int snd_seq_oss_synth_register(struct snd_seq_device *dev);
-int snd_seq_oss_synth_unregister(struct snd_seq_device *dev);
+int snd_seq_oss_synth_probe(struct device *dev);
+int snd_seq_oss_synth_remove(struct device *dev);
 void snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp);
 void snd_seq_oss_synth_setup_midi(struct seq_oss_devinfo *dp);
 void snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp);

sound/core/seq/seq_clientmgr.c

@@ -1879,6 +1879,7 @@ static int snd_seq_ioctl_get_client_pool(struct snd_seq_client *client,
 	if (cptr == NULL)
 		return -ENOENT;
 	memset(&info, 0, sizeof(info));
+	info.client = cptr->number;
 	info.output_pool = cptr->pool->size;
 	info.output_room = cptr->pool->room;
 	info.output_free = info.output_pool;

sound/core/seq/seq_device.c

@@ -36,6 +36,7 @@
  *
  */
 
+#include <linux/device.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <sound/core.h>
@@ -51,140 +52,78 @@ MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
 MODULE_DESCRIPTION("ALSA sequencer device management");
 MODULE_LICENSE("GPL");
 
-/* driver state */
-#define DRIVER_EMPTY		0
-#define DRIVER_LOADED		(1<<0)
-#define DRIVER_REQUESTED	(1<<1)
-#define DRIVER_LOCKED		(1<<2)
-#define DRIVER_REQUESTING	(1<<3)
-
-struct ops_list {
-	char id[ID_LEN];	/* driver id */
-	int driver;		/* driver state */
-	int used;		/* reference counter */
-	int argsize;		/* argument size */
-
-	/* operators */
-	struct snd_seq_dev_ops ops;
-
-	/* registered devices */
-	struct list_head dev_list;	/* list of devices */
-	int num_devices;	/* number of associated devices */
-	int num_init_devices;	/* number of initialized devices */
-	struct mutex reg_mutex;
-
-	struct list_head list;	/* next driver */
-};
+/*
+ * bus definition
+ */
+static int snd_seq_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct snd_seq_device *sdev = to_seq_dev(dev);
+	struct snd_seq_driver *sdrv = to_seq_drv(drv);
 
+	return strcmp(sdrv->id, sdev->id) == 0 &&
+		sdrv->argsize == sdev->argsize;
+}
 
-static LIST_HEAD(opslist);
-static int num_ops;
-static DEFINE_MUTEX(ops_mutex);
-#ifdef CONFIG_PROC_FS
-static struct snd_info_entry *info_entry;
-#endif
+static struct bus_type snd_seq_bus_type = {
+	.name = "snd_seq",
+	.match = snd_seq_bus_match,
+};
 
 /*
- * prototypes
+ * proc interface -- just for compatibility
  */
-static int snd_seq_device_free(struct snd_seq_device *dev);
-static int snd_seq_device_dev_free(struct snd_device *device);
-static int snd_seq_device_dev_register(struct snd_device *device);
-static int snd_seq_device_dev_disconnect(struct snd_device *device);
-
-static int init_device(struct snd_seq_device *dev, struct ops_list *ops);
-static int free_device(struct snd_seq_device *dev, struct ops_list *ops);
-static struct ops_list *find_driver(char *id, int create_if_empty);
-static struct ops_list *create_driver(char *id);
-static void unlock_driver(struct ops_list *ops);
-static void remove_drivers(void);
+#ifdef CONFIG_PROC_FS
+static struct snd_info_entry *info_entry;
 
-/*
- * show all drivers and their status
- */
+static int print_dev_info(struct device *dev, void *data)
+{
+	struct snd_seq_device *sdev = to_seq_dev(dev);
+	struct snd_info_buffer *buffer = data;
+
+	snd_iprintf(buffer, "snd-%s,%s,%d\n", sdev->id,
+		    dev->driver ? "loaded" : "empty",
+		    dev->driver ? 1 : 0);
+	return 0;
+}
 
-#ifdef CONFIG_PROC_FS
 static void snd_seq_device_info(struct snd_info_entry *entry,
 				struct snd_info_buffer *buffer)
 {
-	struct ops_list *ops;
-
-	mutex_lock(&ops_mutex);
-	list_for_each_entry(ops, &opslist, list) {
-		snd_iprintf(buffer, "snd-%s%s%s%s,%d\n",
-				ops->id,
-				ops->driver & DRIVER_LOADED ? ",loaded" : (ops->driver == DRIVER_EMPTY ? ",empty" : ""),
-				ops->driver & DRIVER_REQUESTED ? ",requested" : "",
-				ops->driver & DRIVER_LOCKED ? ",locked" : "",
-				ops->num_devices);
-	}
-	mutex_unlock(&ops_mutex);
+	bus_for_each_dev(&snd_seq_bus_type, NULL, buffer, print_dev_info);
 }
 #endif
- 
+
 /*
  * load all registered drivers (called from seq_clientmgr.c)
  */
 
 #ifdef CONFIG_MODULES
-/* avoid auto-loading during module_init() */
+/* flag to block auto-loading */
 static atomic_t snd_seq_in_init = ATOMIC_INIT(1); /* blocked as default */
-void snd_seq_autoload_lock(void)
-{
-	atomic_inc(&snd_seq_in_init);
-}
 
-void snd_seq_autoload_unlock(void)
+static int request_seq_drv(struct device *dev, void *data)
 {
-	atomic_dec(&snd_seq_in_init);
+	struct snd_seq_device *sdev = to_seq_dev(dev);
+
+	if (!dev->driver)
+		request_module("snd-%s", sdev->id);
+	return 0;
 }
 
-static void autoload_drivers(void)
+static void autoload_drivers(struct work_struct *work)
 {
 	/* avoid reentrance */
-	if (atomic_inc_return(&snd_seq_in_init) == 1) {
-		struct ops_list *ops;
-
-		mutex_lock(&ops_mutex);
-		list_for_each_entry(ops, &opslist, list) {
-			if ((ops->driver & DRIVER_REQUESTING) &&
-			    !(ops->driver & DRIVER_REQUESTED)) {
-				ops->used++;
-				mutex_unlock(&ops_mutex);
-				ops->driver |= DRIVER_REQUESTED;
-				request_module("snd-%s", ops->id);
-				mutex_lock(&ops_mutex);
-				ops->used--;
-			}
-		}
-		mutex_unlock(&ops_mutex);
-	}
+	if (atomic_inc_return(&snd_seq_in_init) == 1)
+		bus_for_each_dev(&snd_seq_bus_type, NULL, NULL,
+				 request_seq_drv);
 	atomic_dec(&snd_seq_in_init);
 }
 
-static void call_autoload(struct work_struct *work)
-{
-	autoload_drivers();
-}
-
-static DECLARE_WORK(autoload_work, call_autoload);
-
-static void try_autoload(struct ops_list *ops)
-{
-	if (!ops->driver) {
-		ops->driver |= DRIVER_REQUESTING;
-		schedule_work(&autoload_work);
-	}
-}
+static DECLARE_WORK(autoload_work, autoload_drivers);
 
 static void queue_autoload_drivers(void)
 {
-	struct ops_list *ops;
-
-	mutex_lock(&ops_mutex);
-	list_for_each_entry(ops, &opslist, list)
-		try_autoload(ops);
-	mutex_unlock(&ops_mutex);
+	schedule_work(&autoload_work);
 }
 
 void snd_seq_autoload_init(void)
@@ -195,384 +134,143 @@ void snd_seq_autoload_init(void)
 	queue_autoload_drivers();
 #endif
 }
-#else
-#define try_autoload(ops) /* NOP */
-#endif
+EXPORT_SYMBOL(snd_seq_autoload_init);
 
-void snd_seq_device_load_drivers(void)
+void snd_seq_autoload_exit(void)
 {
-#ifdef CONFIG_MODULES
-	queue_autoload_drivers();
-	flush_work(&autoload_work);
-#endif
+	atomic_inc(&snd_seq_in_init);
 }
+EXPORT_SYMBOL(snd_seq_autoload_exit);
 
-/*
- * register a sequencer device
- * card = card info
- * device = device number (if any)
- * id = id of driver
- * result = return pointer (NULL allowed if unnecessary)
- */
-int snd_seq_device_new(struct snd_card *card, int device, char *id, int argsize,
-		       struct snd_seq_device **result)
+void snd_seq_device_load_drivers(void)
 {
-	struct snd_seq_device *dev;
-	struct ops_list *ops;
-	int err;
-	static struct snd_device_ops dops = {
-		.dev_free = snd_seq_device_dev_free,
-		.dev_register = snd_seq_device_dev_register,
-		.dev_disconnect = snd_seq_device_dev_disconnect,
-	};
-
-	if (result)
-		*result = NULL;
-
-	if (snd_BUG_ON(!id))
-		return -EINVAL;
-
-	ops = find_driver(id, 1);
-	if (ops == NULL)
-		return -ENOMEM;
-
-	dev = kzalloc(sizeof(*dev)*2 + argsize, GFP_KERNEL);
-	if (dev == NULL) {
-		unlock_driver(ops);
-		return -ENOMEM;
-	}
-
-	/* set up device info */
-	dev->card = card;
-	dev->device = device;
-	strlcpy(dev->id, id, sizeof(dev->id));
-	dev->argsize = argsize;
-	dev->status = SNDRV_SEQ_DEVICE_FREE;
-
-	/* add this device to the list */
-	mutex_lock(&ops->reg_mutex);
-	list_add_tail(&dev->list, &ops->dev_list);
-	ops->num_devices++;
-	mutex_unlock(&ops->reg_mutex);
-
-	if ((err = snd_device_new(card, SNDRV_DEV_SEQUENCER, dev, &dops)) < 0) {
-		snd_seq_device_free(dev);
-		return err;
-	}
-	
-	try_autoload(ops);
-	unlock_driver(ops);
-
-	if (result)
-		*result = dev;
-
-	return 0;
+	queue_autoload_drivers();
+	flush_work(&autoload_work);
 }
+EXPORT_SYMBOL(snd_seq_device_load_drivers);
+#else
+#define queue_autoload_drivers() /* NOP */
+#endif
 
 /*
- * free the existing device
+ * device management
  */
-static int snd_seq_device_free(struct snd_seq_device *dev)
-{
-	struct ops_list *ops;
-
-	if (snd_BUG_ON(!dev))
-		return -EINVAL;
-
-	ops = find_driver(dev->id, 0);
-	if (ops == NULL)
-		return -ENXIO;
-
-	/* remove the device from the list */
-	mutex_lock(&ops->reg_mutex);
-	list_del(&dev->list);
-	ops->num_devices--;
-	mutex_unlock(&ops->reg_mutex);
-
-	free_device(dev, ops);
-	if (dev->private_free)
-		dev->private_free(dev);
-	kfree(dev);
-
-	unlock_driver(ops);
-
-	return 0;
-}
-
 static int snd_seq_device_dev_free(struct snd_device *device)
 {
 	struct snd_seq_device *dev = device->device_data;
-	return snd_seq_device_free(dev);
+
+	put_device(&dev->dev);
+	return 0;
 }
 
-/*
- * register the device
- */
 static int snd_seq_device_dev_register(struct snd_device *device)
 {
 	struct snd_seq_device *dev = device->device_data;
-	struct ops_list *ops;
-
-	ops = find_driver(dev->id, 0);
-	if (ops == NULL)
-		return -ENOENT;
-
-	/* initialize this device if the corresponding driver was
-	 * already loaded
-	 */
-	if (ops->driver & DRIVER_LOADED)
-		init_device(dev, ops);
+	int err;
 
-	unlock_driver(ops);
+	err = device_add(&dev->dev);
+	if (err < 0)
+		return err;
+	if (!dev->dev.driver)
+		queue_autoload_drivers();
 	return 0;
 }
 
-/*
- * disconnect the device
- */
 static int snd_seq_device_dev_disconnect(struct snd_device *device)
 {
 	struct snd_seq_device *dev = device->device_data;
-	struct ops_list *ops;
-
-	ops = find_driver(dev->id, 0);
-	if (ops == NULL)
-		return -ENOENT;
-
-	free_device(dev, ops);
 
-	unlock_driver(ops);
+	device_del(&dev->dev);
 	return 0;
 }
 
-/*
- * register device driver
- * id = driver id
- * entry = driver operators - duplicated to each instance
- */
-int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
-				   int argsize)
+static void snd_seq_dev_release(struct device *dev)
 {
-	struct ops_list *ops;
-	struct snd_seq_device *dev;
+	struct snd_seq_device *sdev = to_seq_dev(dev);
 
-	if (id == NULL || entry == NULL ||
-	    entry->init_device == NULL || entry->free_device == NULL)
-		return -EINVAL;
-
-	ops = find_driver(id, 1);
-	if (ops == NULL)
-		return -ENOMEM;
-	if (ops->driver & DRIVER_LOADED) {
-		pr_warn("ALSA: seq: driver_register: driver '%s' already exists\n", id);
-		unlock_driver(ops);
-		return -EBUSY;
-	}
-
-	mutex_lock(&ops->reg_mutex);
-	/* copy driver operators */
-	ops->ops = *entry;
-	ops->driver |= DRIVER_LOADED;
-	ops->argsize = argsize;
-
-	/* initialize existing devices if necessary */
-	list_for_each_entry(dev, &ops->dev_list, list) {
-		init_device(dev, ops);
-	}
-	mutex_unlock(&ops->reg_mutex);
-
-	unlock_driver(ops);
-
-	return 0;
+	if (sdev->private_free)
+		sdev->private_free(sdev);
+	kfree(sdev);
 }
 
-
-/*
- * create driver record
- */
-static struct ops_list * create_driver(char *id)
-{
-	struct ops_list *ops;
-
-	ops = kzalloc(sizeof(*ops), GFP_KERNEL);
-	if (ops == NULL)
-		return ops;
-
-	/* set up driver entry */
-	strlcpy(ops->id, id, sizeof(ops->id));
-	mutex_init(&ops->reg_mutex);
-	/*
-	 * The ->reg_mutex locking rules are per-driver, so we create
-	 * separate per-driver lock classes:
-	 */
-	lockdep_set_class(&ops->reg_mutex, (struct lock_class_key *)id);
-
-	ops->driver = DRIVER_EMPTY;
-	INIT_LIST_HEAD(&ops->dev_list);
-	/* lock this instance */
-	ops->used = 1;
-
-	/* register driver entry */
-	mutex_lock(&ops_mutex);
-	list_add_tail(&ops->list, &opslist);
-	num_ops++;
-	mutex_unlock(&ops_mutex);
-
-	return ops;
-}
-
-
 /*
- * unregister the specified driver
+ * register a sequencer device
+ * card = card info
+ * device = device number (if any)
+ * id = id of driver
+ * result = return pointer (NULL allowed if unnecessary)
  */
-int snd_seq_device_unregister_driver(char *id)
+int snd_seq_device_new(struct snd_card *card, int device, const char *id,
+		       int argsize, struct snd_seq_device **result)
 {
-	struct ops_list *ops;
 	struct snd_seq_device *dev;
+	int err;
+	static struct snd_device_ops dops = {
+		.dev_free = snd_seq_device_dev_free,
+		.dev_register = snd_seq_device_dev_register,
+		.dev_disconnect = snd_seq_device_dev_disconnect,
+	};
 
-	ops = find_driver(id, 0);
-	if (ops == NULL)
-		return -ENXIO;
-	if (! (ops->driver & DRIVER_LOADED) ||
-	    (ops->driver & DRIVER_LOCKED)) {
-		pr_err("ALSA: seq: driver_unregister: cannot unload driver '%s': status=%x\n",
-			   id, ops->driver);
-		unlock_driver(ops);
-		return -EBUSY;
-	}
-
-	/* close and release all devices associated with this driver */
-	mutex_lock(&ops->reg_mutex);
-	ops->driver |= DRIVER_LOCKED; /* do not remove this driver recursively */
-	list_for_each_entry(dev, &ops->dev_list, list) {
-		free_device(dev, ops);
-	}
-
-	ops->driver = 0;
-	if (ops->num_init_devices > 0)
-		pr_err("ALSA: seq: free_driver: init_devices > 0!! (%d)\n",
-			   ops->num_init_devices);
-	mutex_unlock(&ops->reg_mutex);
-
-	unlock_driver(ops);
+	if (result)
+		*result = NULL;
 
-	/* remove empty driver entries */
-	remove_drivers();
+	if (snd_BUG_ON(!id))
+		return -EINVAL;
 
-	return 0;
-}
+	dev = kzalloc(sizeof(*dev) + argsize, GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
 
+	/* set up device info */
+	dev->card = card;
+	dev->device = device;
+	dev->id = id;
+	dev->argsize = argsize;
 
-/*
- * remove empty driver entries
- */
-static void remove_drivers(void)
-{
-	struct list_head *head;
-
-	mutex_lock(&ops_mutex);
-	head = opslist.next;
-	while (head != &opslist) {
-		struct ops_list *ops = list_entry(head, struct ops_list, list);
-		if (! (ops->driver & DRIVER_LOADED) &&
-		    ops->used == 0 && ops->num_devices == 0) {
-			head = head->next;
-			list_del(&ops->list);
-			kfree(ops);
-			num_ops--;
-		} else
-			head = head->next;
-	}
-	mutex_unlock(&ops_mutex);
-}
+	device_initialize(&dev->dev);
+	dev->dev.parent = &card->card_dev;
+	dev->dev.bus = &snd_seq_bus_type;
+	dev->dev.release = snd_seq_dev_release;
+	dev_set_name(&dev->dev, "%s-%d-%d", dev->id, card->number, device);
 
-/*
- * initialize the device - call init_device operator
- */
-static int init_device(struct snd_seq_device *dev, struct ops_list *ops)
-{
-	if (! (ops->driver & DRIVER_LOADED))
-		return 0; /* driver is not loaded yet */
-	if (dev->status != SNDRV_SEQ_DEVICE_FREE)
-		return 0; /* already initialized */
-	if (ops->argsize != dev->argsize) {
-		pr_err("ALSA: seq: incompatible device '%s' for plug-in '%s' (%d %d)\n",
-			   dev->name, ops->id, ops->argsize, dev->argsize);
-		return -EINVAL;
-	}
-	if (ops->ops.init_device(dev) >= 0) {
-		dev->status = SNDRV_SEQ_DEVICE_REGISTERED;
-		ops->num_init_devices++;
-	} else {
-		pr_err("ALSA: seq: init_device failed: %s: %s\n",
-			   dev->name, dev->id);
+	/* add this device to the list */
+	err = snd_device_new(card, SNDRV_DEV_SEQUENCER, dev, &dops);
+	if (err < 0) {
+		put_device(&dev->dev);
+		return err;
 	}
+	
+	if (result)
+		*result = dev;
 
 	return 0;
 }
+EXPORT_SYMBOL(snd_seq_device_new);
 
 /*
- * release the device - call free_device operator
+ * driver registration
  */
-static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
+int __snd_seq_driver_register(struct snd_seq_driver *drv, struct module *mod)
 {
-	int result;
-
-	if (! (ops->driver & DRIVER_LOADED))
-		return 0; /* driver is not loaded yet */
-	if (dev->status != SNDRV_SEQ_DEVICE_REGISTERED)
-		return 0; /* not registered */
-	if (ops->argsize != dev->argsize) {
-		pr_err("ALSA: seq: incompatible device '%s' for plug-in '%s' (%d %d)\n",
-			   dev->name, ops->id, ops->argsize, dev->argsize);
+	if (WARN_ON(!drv->driver.name || !drv->id))
 		return -EINVAL;
-	}
-	if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) {
-		dev->status = SNDRV_SEQ_DEVICE_FREE;
-		dev->driver_data = NULL;
-		ops->num_init_devices--;
-	} else {
-		pr_err("ALSA: seq: free_device failed: %s: %s\n",
-			   dev->name, dev->id);
-	}
-
-	return 0;
+	drv->driver.bus = &snd_seq_bus_type;
+	drv->driver.owner = mod;
+	return driver_register(&drv->driver);
 }
+EXPORT_SYMBOL_GPL(__snd_seq_driver_register);
 
-/*
- * find the matching driver with given id
- */
-static struct ops_list * find_driver(char *id, int create_if_empty)
+void snd_seq_driver_unregister(struct snd_seq_driver *drv)
 {
-	struct ops_list *ops;
-
-	mutex_lock(&ops_mutex);
-	list_for_each_entry(ops, &opslist, list) {
-		if (strcmp(ops->id, id) == 0) {
-			ops->used++;
-			mutex_unlock(&ops_mutex);
-			return ops;
-		}
-	}
-	mutex_unlock(&ops_mutex);
-	if (create_if_empty)
-		return create_driver(id);
-	return NULL;
+	driver_unregister(&drv->driver);
 }
-
-static void unlock_driver(struct ops_list *ops)
-{
-	mutex_lock(&ops_mutex);
-	ops->used--;
-	mutex_unlock(&ops_mutex);
-}
-
+EXPORT_SYMBOL_GPL(snd_seq_driver_unregister);
 
 /*
  * module part
  */
 
-static int __init alsa_seq_device_init(void)
+static int __init seq_dev_proc_init(void)
 {
 #ifdef CONFIG_PROC_FS
 	info_entry = snd_info_create_module_entry(THIS_MODULE, "drivers",
@@ -589,28 +287,29 @@ static int __init alsa_seq_device_init(void)
 	return 0;
 }
 
+static int __init alsa_seq_device_init(void)
+{
+	int err;
+
+	err = bus_register(&snd_seq_bus_type);
+	if (err < 0)
+		return err;
+	err = seq_dev_proc_init();
+	if (err < 0)
+		bus_unregister(&snd_seq_bus_type);
+	return err;
+}
+
 static void __exit alsa_seq_device_exit(void)
 {
 #ifdef CONFIG_MODULES
 	cancel_work_sync(&autoload_work);
 #endif
-	remove_drivers();
 #ifdef CONFIG_PROC_FS
 	snd_info_free_entry(info_entry);
 #endif
-	if (num_ops)
-		pr_err("ALSA: seq: drivers not released (%d)\n", num_ops);
+	bus_unregister(&snd_seq_bus_type);
 }
 
-module_init(alsa_seq_device_init)
+subsys_initcall(alsa_seq_device_init)
 module_exit(alsa_seq_device_exit)
-
-EXPORT_SYMBOL(snd_seq_device_load_drivers);
-EXPORT_SYMBOL(snd_seq_device_new);
-EXPORT_SYMBOL(snd_seq_device_register_driver);
-EXPORT_SYMBOL(snd_seq_device_unregister_driver);
-#ifdef CONFIG_MODULES
-EXPORT_SYMBOL(snd_seq_autoload_init);
-EXPORT_SYMBOL(snd_seq_autoload_lock);
-EXPORT_SYMBOL(snd_seq_autoload_unlock);
-#endif

sound/core/seq/seq_dummy.c

@@ -214,11 +214,7 @@ delete_client(void)
 
 static int __init alsa_seq_dummy_init(void)
 {
-	int err;
-	snd_seq_autoload_lock();
-	err = register_client();
-	snd_seq_autoload_unlock();
-	return err;
+	return register_client();
 }
 
 static void __exit alsa_seq_dummy_exit(void)

sound/core/seq/seq_fifo.c

@@ -33,10 +33,8 @@ struct snd_seq_fifo *snd_seq_fifo_new(int poolsize)
 	struct snd_seq_fifo *f;
 
 	f = kzalloc(sizeof(*f), GFP_KERNEL);
-	if (f == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_fifo_new() \n");
+	if (!f)
 		return NULL;
-	}
 
 	f->pool = snd_seq_pool_new(poolsize);
 	if (f->pool == NULL) {

sound/core/seq/seq_memory.c

@@ -387,10 +387,8 @@ int snd_seq_pool_init(struct snd_seq_pool *pool)
 		return 0;
 
 	pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
-	if (pool->ptr == NULL) {
-		pr_debug("ALSA: seq: malloc for sequencer events failed\n");
+	if (!pool->ptr)
 		return -ENOMEM;
-	}
 
 	/* add new cells to the free cell list */
 	spin_lock_irqsave(&pool->lock, flags);
@@ -463,10 +461,8 @@ struct snd_seq_pool *snd_seq_pool_new(int poolsize)
 
 	/* create pool block */
 	pool = kzalloc(sizeof(*pool), GFP_KERNEL);
-	if (pool == NULL) {
-		pr_debug("ALSA: seq: malloc failed for pool\n");
+	if (!pool)
 		return NULL;
-	}
 	spin_lock_init(&pool->lock);
 	pool->ptr = NULL;
 	pool->free = NULL;

sound/core/seq/seq_midi.c

@@ -273,8 +273,9 @@ static void snd_seq_midisynth_delete(struct seq_midisynth *msynth)
 
 /* register new midi synth port */
 static int
-snd_seq_midisynth_register_port(struct snd_seq_device *dev)
+snd_seq_midisynth_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct seq_midisynth_client *client;
 	struct seq_midisynth *msynth, *ms;
 	struct snd_seq_port_info *port;
@@ -427,8 +428,9 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
 
 /* release midi synth port */
 static int
-snd_seq_midisynth_unregister_port(struct snd_seq_device *dev)
+snd_seq_midisynth_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct seq_midisynth_client *client;
 	struct seq_midisynth *msynth;
 	struct snd_card *card = dev->card;
@@ -457,24 +459,14 @@ snd_seq_midisynth_unregister_port(struct snd_seq_device *dev)
 	return 0;
 }
 
+static struct snd_seq_driver seq_midisynth_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_seq_midisynth_probe,
+		.remove = snd_seq_midisynth_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_MIDISYNTH,
+	.argsize = 0,
+};
 
-static int __init alsa_seq_midi_init(void)
-{
-	static struct snd_seq_dev_ops ops = {
-		snd_seq_midisynth_register_port,
-		snd_seq_midisynth_unregister_port,
-	};
-	memset(&synths, 0, sizeof(synths));
-	snd_seq_autoload_lock();
-	snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_MIDISYNTH, &ops, 0);
-	snd_seq_autoload_unlock();
-	return 0;
-}
-
-static void __exit alsa_seq_midi_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_MIDISYNTH);
-}
-
-module_init(alsa_seq_midi_init)
-module_exit(alsa_seq_midi_exit)
+module_snd_seq_driver(seq_midisynth_driver);

sound/core/seq/seq_ports.c

@@ -141,10 +141,8 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 
 	/* create a new port */
 	new_port = kzalloc(sizeof(*new_port), GFP_KERNEL);
-	if (! new_port) {
-		pr_debug("ALSA: seq: malloc failed for registering client port\n");
+	if (!new_port)
 		return NULL;	/* failure, out of memory */
-	}
 	/* init port data */
 	new_port->addr.client = client->number;
 	new_port->addr.port = -1;

sound/core/seq/seq_prioq.c

@@ -59,10 +59,8 @@ struct snd_seq_prioq *snd_seq_prioq_new(void)
 	struct snd_seq_prioq *f;
 
 	f = kzalloc(sizeof(*f), GFP_KERNEL);
-	if (f == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_prioq_new()\n");
+	if (!f)
 		return NULL;
-	}
 	
 	spin_lock_init(&f->lock);
 	f->head = NULL;

sound/core/seq/seq_queue.c

@@ -111,10 +111,8 @@ static struct snd_seq_queue *queue_new(int owner, int locked)
 	struct snd_seq_queue *q;
 
 	q = kzalloc(sizeof(*q), GFP_KERNEL);
-	if (q == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_queue_new()\n");
+	if (!q)
 		return NULL;
-	}
 
 	spin_lock_init(&q->owner_lock);
 	spin_lock_init(&q->check_lock);

sound/core/seq/seq_timer.c

@@ -56,10 +56,8 @@ struct snd_seq_timer *snd_seq_timer_new(void)
 	struct snd_seq_timer *tmr;
 	
 	tmr = kzalloc(sizeof(*tmr), GFP_KERNEL);
-	if (tmr == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_timer_new() \n");
+	if (!tmr)
 		return NULL;
-	}
 	spin_lock_init(&tmr->lock);
 
 	/* reset setup to defaults */

sound/core/sound.c

@@ -186,7 +186,7 @@ static const struct file_operations snd_fops =
 };
 
 #ifdef CONFIG_SND_DYNAMIC_MINORS
-static int snd_find_free_minor(int type)
+static int snd_find_free_minor(int type, struct snd_card *card, int dev)
 {
 	int minor;
 
@@ -209,7 +209,7 @@ static int snd_find_free_minor(int type)
 	return -EBUSY;
 }
 #else
-static int snd_kernel_minor(int type, struct snd_card *card, int dev)
+static int snd_find_free_minor(int type, struct snd_card *card, int dev)
 {
 	int minor;
 
@@ -237,6 +237,8 @@ static int snd_kernel_minor(int type, struct snd_card *card, int dev)
 	}
 	if (snd_BUG_ON(minor < 0 || minor >= SNDRV_OS_MINORS))
 		return -EINVAL;
+	if (snd_minors[minor])
+		return -EBUSY;
 	return minor;
 }
 #endif
@@ -276,13 +278,7 @@ int snd_register_device(int type, struct snd_card *card, int dev,
 	preg->private_data = private_data;
 	preg->card_ptr = card;
 	mutex_lock(&sound_mutex);
-#ifdef CONFIG_SND_DYNAMIC_MINORS
-	minor = snd_find_free_minor(type);
-#else
-	minor = snd_kernel_minor(type, card, dev);
-	if (minor >= 0 && snd_minors[minor])
-		minor = -EBUSY;
-#endif
+	minor = snd_find_free_minor(type, card, dev);
 	if (minor < 0) {
 		err = minor;
 		goto error;

sound/core/timer.c

@@ -774,10 +774,8 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
 	if (rtimer)
 		*rtimer = NULL;
 	timer = kzalloc(sizeof(*timer), GFP_KERNEL);
-	if (timer == NULL) {
-		pr_err("ALSA: timer: cannot allocate\n");
+	if (!timer)
 		return -ENOMEM;
-	}
 	timer->tmr_class = tid->dev_class;
 	timer->card = card;
 	timer->tmr_device = tid->device;

sound/drivers/opl3/opl3_seq.c

@@ -216,8 +216,9 @@ static int snd_opl3_synth_create_port(struct snd_opl3 * opl3)
 
 /* ------------------------------ */
 
-static int snd_opl3_seq_new_device(struct snd_seq_device *dev)
+static int snd_opl3_seq_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_opl3 *opl3;
 	int client, err;
 	char name[32];
@@ -257,8 +258,9 @@ static int snd_opl3_seq_new_device(struct snd_seq_device *dev)
 	return 0;
 }
 
-static int snd_opl3_seq_delete_device(struct snd_seq_device *dev)
+static int snd_opl3_seq_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_opl3 *opl3;
 
 	opl3 = *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
@@ -275,22 +277,14 @@ static int snd_opl3_seq_delete_device(struct snd_seq_device *dev)
 	return 0;
 }
 
-static int __init alsa_opl3_seq_init(void)
-{
-	static struct snd_seq_dev_ops ops =
-	{
-		snd_opl3_seq_new_device,
-		snd_opl3_seq_delete_device
-	};
-
-	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops,
-					      sizeof(struct snd_opl3 *));
-}
-
-static void __exit alsa_opl3_seq_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL3);
-}
+static struct snd_seq_driver opl3_seq_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_opl3_seq_probe,
+		.remove = snd_opl3_seq_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_OPL3,
+	.argsize = sizeof(struct snd_opl3 *),
+};
 
-module_init(alsa_opl3_seq_init)
-module_exit(alsa_opl3_seq_exit)
+module_snd_seq_driver(opl3_seq_driver);

sound/drivers/opl4/opl4_seq.c

@@ -124,8 +124,9 @@ static void snd_opl4_seq_free_port(void *private_data)
 	snd_midi_channel_free_set(opl4->chset);
 }
 
-static int snd_opl4_seq_new_device(struct snd_seq_device *dev)
+static int snd_opl4_seq_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_opl4 *opl4;
 	int client;
 	struct snd_seq_port_callback pcallbacks;
@@ -180,8 +181,9 @@ static int snd_opl4_seq_new_device(struct snd_seq_device *dev)
 	return 0;
 }
 
-static int snd_opl4_seq_delete_device(struct snd_seq_device *dev)
+static int snd_opl4_seq_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_opl4 *opl4;
 
 	opl4 = *(struct snd_opl4 **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
@@ -195,21 +197,14 @@ static int snd_opl4_seq_delete_device(struct snd_seq_device *dev)
 	return 0;
 }
 
-static int __init alsa_opl4_synth_init(void)
-{
-	static struct snd_seq_dev_ops ops = {
-		snd_opl4_seq_new_device,
-		snd_opl4_seq_delete_device
-	};
-
-	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL4, &ops,
-					      sizeof(struct snd_opl4 *));
-}
-
-static void __exit alsa_opl4_synth_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL4);
-}
+static struct snd_seq_driver opl4_seq_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_opl4_seq_probe,
+		.remove = snd_opl4_seq_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_OPL4,
+	.argsize = sizeof(struct snd_opl4 *),
+};
 
-module_init(alsa_opl4_synth_init)
-module_exit(alsa_opl4_synth_exit)
+module_snd_seq_driver(opl4_seq_driver);

sound/firewire/amdtp.c

@@ -166,10 +166,10 @@ int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s,
 	 * One AMDTP packet can include some frames. In blocking mode, the
 	 * number equals to SYT_INTERVAL. So the number is 8, 16 or 32,
 	 * depending on its sampling rate. For accurate period interrupt, it's
-	 * preferrable to aligh period/buffer sizes to current SYT_INTERVAL.
+	 * preferrable to align period/buffer sizes to current SYT_INTERVAL.
 	 *
-	 * TODO: These constraints can be improved with propper rules.
-	 * Currently apply LCM of SYT_INTEVALs.
+	 * TODO: These constraints can be improved with proper rules.
+	 * Currently apply LCM of SYT_INTERVALs.
 	 */
 	err = snd_pcm_hw_constraint_step(runtime, 0,
 					 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32);
@@ -270,7 +270,7 @@ static void amdtp_read_s32(struct amdtp_stream *s,
  * @s: the AMDTP stream to configure
  * @format: the format of the ALSA PCM device
  *
- * The sample format must be set after the other paramters (rate/PCM channels/
+ * The sample format must be set after the other parameters (rate/PCM channels/
  * MIDI) and before the stream is started, and must not be changed while the
  * stream is running.
  */

sound/firewire/fireworks/fireworks_transaction.c

@@ -13,7 +13,7 @@
  *
  * Transaction substance:
  *  At first, 6 data exist. Following to the data, parameters for each command
- *  exist. All of the parameters are 32 bit alighed to big endian.
+ *  exist. All of the parameters are 32 bit aligned to big endian.
  *   data[0]:	Length of transaction substance
  *   data[1]:	Transaction version
  *   data[2]:	Sequence number. This is incremented by the device

sound/hda/Kconfig

@@ -0,0 +1,3 @@
+config SND_HDA_CORE
+	tristate
+	select REGMAP

sound/hda/Makefile

@@ -0,0 +1,7 @@
+snd-hda-core-objs := hda_bus_type.o hdac_bus.o hdac_device.o hdac_sysfs.o \
+	hdac_regmap.o array.o
+
+snd-hda-core-objs += trace.o
+CFLAGS_trace.o := -I$(src)
+
+obj-$(CONFIG_SND_HDA_CORE) += snd-hda-core.o

sound/hda/array.c

@@ -0,0 +1,49 @@
+/*
+ * generic arrays
+ */
+
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/hdaudio.h>
+
+/**
+ * snd_array_new - get a new element from the given array
+ * @array: the array object
+ *
+ * Get a new element from the given array.  If it exceeds the
+ * pre-allocated array size, re-allocate the array.
+ *
+ * Returns NULL if allocation failed.
+ */
+void *snd_array_new(struct snd_array *array)
+{
+	if (snd_BUG_ON(!array->elem_size))
+		return NULL;
+	if (array->used >= array->alloced) {
+		int num = array->alloced + array->alloc_align;
+		int size = (num + 1) * array->elem_size;
+		void *nlist;
+		if (snd_BUG_ON(num >= 4096))
+			return NULL;
+		nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO);
+		if (!nlist)
+			return NULL;
+		array->list = nlist;
+		array->alloced = num;
+	}
+	return snd_array_elem(array, array->used++);
+}
+EXPORT_SYMBOL_GPL(snd_array_new);
+
+/**
+ * snd_array_free - free the given array elements
+ * @array: the array object
+ */
+void snd_array_free(struct snd_array *array)
+{
+	kfree(array->list);
+	array->used = 0;
+	array->alloced = 0;
+	array->list = NULL;
+}
+EXPORT_SYMBOL_GPL(snd_array_free);

sound/hda/hda_bus_type.c

@@ -0,0 +1,42 @@
+/*
+ * HD-audio bus
+ */
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <sound/hdaudio.h>
+
+MODULE_DESCRIPTION("HD-audio bus");
+MODULE_LICENSE("GPL");
+
+static int hda_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct hdac_device *hdev = dev_to_hdac_dev(dev);
+	struct hdac_driver *hdrv = drv_to_hdac_driver(drv);
+
+	if (hdev->type != hdrv->type)
+		return 0;
+	if (hdrv->match)
+		return hdrv->match(hdev, hdrv);
+	return 1;
+}
+
+struct bus_type snd_hda_bus_type = {
+	.name = "hdaudio",
+	.match = hda_bus_match,
+};
+EXPORT_SYMBOL_GPL(snd_hda_bus_type);
+
+static int __init hda_bus_init(void)
+{
+	return bus_register(&snd_hda_bus_type);
+}
+
+static void __exit hda_bus_exit(void)
+{
+	bus_unregister(&snd_hda_bus_type);
+}
+
+subsys_initcall(hda_bus_init);
+module_exit(hda_bus_exit);

sound/hda/hdac_bus.c

@@ -0,0 +1,186 @@
+/*
+ * HD-audio core bus driver
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <sound/hdaudio.h>
+#include "trace.h"
+
+static void process_unsol_events(struct work_struct *work);
+
+/**
+ * snd_hdac_bus_init - initialize a HD-audio bas bus
+ * @bus: the pointer to bus object
+ *
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
+		      const struct hdac_bus_ops *ops)
+{
+	memset(bus, 0, sizeof(*bus));
+	bus->dev = dev;
+	bus->ops = ops;
+	INIT_LIST_HEAD(&bus->codec_list);
+	INIT_WORK(&bus->unsol_work, process_unsol_events);
+	mutex_init(&bus->cmd_mutex);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_init);
+
+/**
+ * snd_hdac_bus_exit - clean up a HD-audio bas bus
+ * @bus: the pointer to bus object
+ */
+void snd_hdac_bus_exit(struct hdac_bus *bus)
+{
+	WARN_ON(!list_empty(&bus->codec_list));
+	cancel_work_sync(&bus->unsol_work);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_exit);
+
+/**
+ * snd_hdac_bus_exec_verb - execute a HD-audio verb on the given bus
+ * @bus: bus object
+ * @cmd: HD-audio encoded verb
+ * @res: pointer to store the response, NULL if performing asynchronously
+ *
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
+			   unsigned int cmd, unsigned int *res)
+{
+	int err;
+
+	mutex_lock(&bus->cmd_mutex);
+	err = snd_hdac_bus_exec_verb_unlocked(bus, addr, cmd, res);
+	mutex_unlock(&bus->cmd_mutex);
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_exec_verb);
+
+/**
+ * snd_hdac_bus_exec_verb_unlocked - unlocked version
+ * @bus: bus object
+ * @cmd: HD-audio encoded verb
+ * @res: pointer to store the response, NULL if performing asynchronously
+ *
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,
+				    unsigned int cmd, unsigned int *res)
+{
+	unsigned int tmp;
+	int err;
+
+	if (cmd == ~0)
+		return -EINVAL;
+
+	if (res)
+		*res = -1;
+	else if (bus->sync_write)
+		res = &tmp;
+	for (;;) {
+		trace_hda_send_cmd(bus, cmd);
+		err = bus->ops->command(bus, cmd);
+		if (err != -EAGAIN)
+			break;
+		/* process pending verbs */
+		err = bus->ops->get_response(bus, addr, &tmp);
+		if (err)
+			break;
+	}
+	if (!err && res) {
+		err = bus->ops->get_response(bus, addr, res);
+		trace_hda_get_response(bus, addr, *res);
+	}
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_exec_verb_unlocked);
+
+/**
+ * snd_hdac_bus_queue_event - add an unsolicited event to queue
+ * @bus: the BUS
+ * @res: unsolicited event (lower 32bit of RIRB entry)
+ * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
+ *
+ * Adds the given event to the queue.  The events are processed in
+ * the workqueue asynchronously.  Call this function in the interrupt
+ * hanlder when RIRB receives an unsolicited event.
+ */
+void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex)
+{
+	unsigned int wp;
+
+	if (!bus)
+		return;
+
+	trace_hda_unsol_event(bus, res, res_ex);
+	wp = (bus->unsol_wp + 1) % HDA_UNSOL_QUEUE_SIZE;
+	bus->unsol_wp = wp;
+
+	wp <<= 1;
+	bus->unsol_queue[wp] = res;
+	bus->unsol_queue[wp + 1] = res_ex;
+
+	schedule_work(&bus->unsol_work);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_queue_event);
+
+/*
+ * process queued unsolicited events
+ */
+static void process_unsol_events(struct work_struct *work)
+{
+	struct hdac_bus *bus = container_of(work, struct hdac_bus, unsol_work);
+	struct hdac_device *codec;
+	struct hdac_driver *drv;
+	unsigned int rp, caddr, res;
+
+	while (bus->unsol_rp != bus->unsol_wp) {
+		rp = (bus->unsol_rp + 1) % HDA_UNSOL_QUEUE_SIZE;
+		bus->unsol_rp = rp;
+		rp <<= 1;
+		res = bus->unsol_queue[rp];
+		caddr = bus->unsol_queue[rp + 1];
+		if (!(caddr & (1 << 4))) /* no unsolicited event? */
+			continue;
+		codec = bus->caddr_tbl[caddr & 0x0f];
+		if (!codec || !codec->dev.driver)
+			continue;
+		drv = drv_to_hdac_driver(codec->dev.driver);
+		if (drv->unsol_event)
+			drv->unsol_event(codec, res);
+	}
+}
+
+int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec)
+{
+	if (bus->caddr_tbl[codec->addr]) {
+		dev_err(bus->dev, "address 0x%x is already occupied\n",
+			codec->addr);
+		return -EBUSY;
+	}
+
+	list_add_tail(&codec->list, &bus->codec_list);
+	bus->caddr_tbl[codec->addr] = codec;
+	set_bit(codec->addr, &bus->codec_powered);
+	bus->num_codecs++;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_add_device);
+
+void snd_hdac_bus_remove_device(struct hdac_bus *bus,
+				struct hdac_device *codec)
+{
+	WARN_ON(bus != codec->bus);
+	if (list_empty(&codec->list))
+		return;
+	list_del_init(&codec->list);
+	bus->caddr_tbl[codec->addr] = NULL;
+	clear_bit(codec->addr, &bus->codec_powered);
+	bus->num_codecs--;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_bus_remove_device);

sound/hda/hdac_device.c

@@ -0,0 +1,569 @@
+/*
+ * HD-audio codec core device
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/pm_runtime.h>
+#include <sound/hdaudio.h>
+#include <sound/hda_regmap.h>
+#include "local.h"
+
+static void setup_fg_nodes(struct hdac_device *codec);
+static int get_codec_vendor_name(struct hdac_device *codec);
+
+static void default_release(struct device *dev)
+{
+	snd_hdac_device_exit(container_of(dev, struct hdac_device, dev));
+}
+
+/**
+ * snd_hdac_device_init - initialize the HD-audio codec base device
+ * @codec: device to initialize
+ * @bus: but to attach
+ * @name: device name string
+ * @addr: codec address
+ *
+ * Returns zero for success or a negative error code.
+ *
+ * This function increments the runtime PM counter and marks it active.
+ * The caller needs to turn it off appropriately later.
+ *
+ * The caller needs to set the device's release op properly by itself.
+ */
+int snd_hdac_device_init(struct hdac_device *codec, struct hdac_bus *bus,
+			 const char *name, unsigned int addr)
+{
+	struct device *dev;
+	hda_nid_t fg;
+	int err;
+
+	dev = &codec->dev;
+	device_initialize(dev);
+	dev->parent = bus->dev;
+	dev->bus = &snd_hda_bus_type;
+	dev->release = default_release;
+	dev->groups = hdac_dev_attr_groups;
+	dev_set_name(dev, "%s", name);
+	device_enable_async_suspend(dev);
+
+	codec->bus = bus;
+	codec->addr = addr;
+	codec->type = HDA_DEV_CORE;
+	pm_runtime_set_active(&codec->dev);
+	pm_runtime_get_noresume(&codec->dev);
+	atomic_set(&codec->in_pm, 0);
+
+	err = snd_hdac_bus_add_device(bus, codec);
+	if (err < 0)
+		goto error;
+
+	/* fill parameters */
+	codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,
+					      AC_PAR_VENDOR_ID);
+	if (codec->vendor_id == -1) {
+		/* read again, hopefully the access method was corrected
+		 * in the last read...
+		 */
+		codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,
+						      AC_PAR_VENDOR_ID);
+	}
+
+	codec->subsystem_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,
+						 AC_PAR_SUBSYSTEM_ID);
+	codec->revision_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,
+						AC_PAR_REV_ID);
+
+	setup_fg_nodes(codec);
+	if (!codec->afg && !codec->mfg) {
+		dev_err(dev, "no AFG or MFG node found\n");
+		err = -ENODEV;
+		goto error;
+	}
+
+	fg = codec->afg ? codec->afg : codec->mfg;
+
+	err = snd_hdac_refresh_widgets(codec);
+	if (err < 0)
+		goto error;
+
+	codec->power_caps = snd_hdac_read_parm(codec, fg, AC_PAR_POWER_STATE);
+	/* reread ssid if not set by parameter */
+	if (codec->subsystem_id == -1 || codec->subsystem_id == 0)
+		snd_hdac_read(codec, fg, AC_VERB_GET_SUBSYSTEM_ID, 0,
+			      &codec->subsystem_id);
+
+	err = get_codec_vendor_name(codec);
+	if (err < 0)
+		goto error;
+
+	codec->chip_name = kasprintf(GFP_KERNEL, "ID %x",
+				     codec->vendor_id & 0xffff);
+	if (!codec->chip_name) {
+		err = -ENOMEM;
+		goto error;
+	}
+
+	return 0;
+
+ error:
+	put_device(&codec->dev);
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_device_init);
+
+/**
+ * snd_hdac_device_exit - clean up the HD-audio codec base device
+ * @codec: device to clean up
+ */
+void snd_hdac_device_exit(struct hdac_device *codec)
+{
+	pm_runtime_put_noidle(&codec->dev);
+	snd_hdac_bus_remove_device(codec->bus, codec);
+	kfree(codec->vendor_name);
+	kfree(codec->chip_name);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_device_exit);
+
+/**
+ * snd_hdac_device_register - register the hd-audio codec base device
+ * codec: the device to register
+ */
+int snd_hdac_device_register(struct hdac_device *codec)
+{
+	int err;
+
+	err = device_add(&codec->dev);
+	if (err < 0)
+		return err;
+	err = hda_widget_sysfs_init(codec);
+	if (err < 0) {
+		device_del(&codec->dev);
+		return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_device_register);
+
+/**
+ * snd_hdac_device_unregister - unregister the hd-audio codec base device
+ * codec: the device to unregister
+ */
+void snd_hdac_device_unregister(struct hdac_device *codec)
+{
+	if (device_is_registered(&codec->dev)) {
+		hda_widget_sysfs_exit(codec);
+		device_del(&codec->dev);
+	}
+}
+EXPORT_SYMBOL_GPL(snd_hdac_device_unregister);
+
+/**
+ * snd_hdac_make_cmd - compose a 32bit command word to be sent to the
+ *	HD-audio controller
+ * @codec: the codec object
+ * @nid: NID to encode
+ * @verb: verb to encode
+ * @parm: parameter to encode
+ *
+ * Return an encoded command verb or -1 for error.
+ */
+unsigned int snd_hdac_make_cmd(struct hdac_device *codec, hda_nid_t nid,
+			       unsigned int verb, unsigned int parm)
+{
+	u32 val, addr;
+
+	addr = codec->addr;
+	if ((addr & ~0xf) || (nid & ~0x7f) ||
+	    (verb & ~0xfff) || (parm & ~0xffff)) {
+		dev_err(&codec->dev, "out of range cmd %x:%x:%x:%x\n",
+			addr, nid, verb, parm);
+		return -1;
+	}
+
+	val = addr << 28;
+	val |= (u32)nid << 20;
+	val |= verb << 8;
+	val |= parm;
+	return val;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_make_cmd);
+
+/**
+ * snd_hdac_exec_verb - execute an encoded verb
+ * @codec: the codec object
+ * @cmd: encoded verb to execute
+ * @flags: optional flags, pass zero for default
+ * @res: the pointer to store the result, NULL if running async
+ *
+ * Returns zero if successful, or a negative error code.
+ *
+ * This calls the exec_verb op when set in hdac_codec.  If not,
+ * call the default snd_hdac_bus_exec_verb().
+ */
+int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,
+		       unsigned int flags, unsigned int *res)
+{
+	if (codec->exec_verb)
+		return codec->exec_verb(codec, cmd, flags, res);
+	return snd_hdac_bus_exec_verb(codec->bus, codec->addr, cmd, res);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_exec_verb);
+
+
+/**
+ * snd_hdac_read - execute a verb
+ * @codec: the codec object
+ * @nid: NID to execute a verb
+ * @verb: verb to execute
+ * @parm: parameter for a verb
+ * @res: the pointer to store the result, NULL if running async
+ *
+ * Returns zero if successful, or a negative error code.
+ */
+int snd_hdac_read(struct hdac_device *codec, hda_nid_t nid,
+		  unsigned int verb, unsigned int parm, unsigned int *res)
+{
+	unsigned int cmd = snd_hdac_make_cmd(codec, nid, verb, parm);
+
+	return snd_hdac_exec_verb(codec, cmd, 0, res);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_read);
+
+/**
+ * _snd_hdac_read_parm - read a parmeter
+ *
+ * This function returns zero or an error unlike snd_hdac_read_parm().
+ */
+int _snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm,
+			unsigned int *res)
+{
+	unsigned int cmd;
+
+	cmd = snd_hdac_regmap_encode_verb(nid, AC_VERB_PARAMETERS) | parm;
+	return snd_hdac_regmap_read_raw(codec, cmd, res);
+}
+EXPORT_SYMBOL_GPL(_snd_hdac_read_parm);
+
+/**
+ * snd_hdac_read_parm_uncached - read a codec parameter without caching
+ * @codec: the codec object
+ * @nid: NID to read a parameter
+ * @parm: parameter to read
+ *
+ * Returns -1 for error.  If you need to distinguish the error more
+ * strictly, use snd_hdac_read() directly.
+ */
+int snd_hdac_read_parm_uncached(struct hdac_device *codec, hda_nid_t nid,
+				int parm)
+{
+	int val;
+
+	if (codec->regmap)
+		regcache_cache_bypass(codec->regmap, true);
+	val = snd_hdac_read_parm(codec, nid, parm);
+	if (codec->regmap)
+		regcache_cache_bypass(codec->regmap, false);
+	return val;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_read_parm_uncached);
+
+/**
+ * snd_hdac_override_parm - override read-only parameters
+ * @codec: the codec object
+ * @nid: NID for the parameter
+ * @parm: the parameter to change
+ * @val: the parameter value to overwrite
+ */
+int snd_hdac_override_parm(struct hdac_device *codec, hda_nid_t nid,
+			   unsigned int parm, unsigned int val)
+{
+	unsigned int verb = (AC_VERB_PARAMETERS << 8) | (nid << 20) | parm;
+	int err;
+
+	if (!codec->regmap)
+		return -EINVAL;
+
+	codec->caps_overwriting = true;
+	err = snd_hdac_regmap_write_raw(codec, verb, val);
+	codec->caps_overwriting = false;
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_override_parm);
+
+/**
+ * snd_hdac_get_sub_nodes - get start NID and number of subtree nodes
+ * @codec: the codec object
+ * @nid: NID to inspect
+ * @start_id: the pointer to store the starting NID
+ *
+ * Returns the number of subtree nodes or zero if not found.
+ * This function reads parameters always without caching.
+ */
+int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid,
+			   hda_nid_t *start_id)
+{
+	unsigned int parm;
+
+	parm = snd_hdac_read_parm_uncached(codec, nid, AC_PAR_NODE_COUNT);
+	if (parm == -1) {
+		*start_id = 0;
+		return 0;
+	}
+	*start_id = (parm >> 16) & 0x7fff;
+	return (int)(parm & 0x7fff);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_get_sub_nodes);
+
+/*
+ * look for an AFG and MFG nodes
+ */
+static void setup_fg_nodes(struct hdac_device *codec)
+{
+	int i, total_nodes, function_id;
+	hda_nid_t nid;
+
+	total_nodes = snd_hdac_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
+	for (i = 0; i < total_nodes; i++, nid++) {
+		function_id = snd_hdac_read_parm(codec, nid,
+						 AC_PAR_FUNCTION_TYPE);
+		switch (function_id & 0xff) {
+		case AC_GRP_AUDIO_FUNCTION:
+			codec->afg = nid;
+			codec->afg_function_id = function_id & 0xff;
+			codec->afg_unsol = (function_id >> 8) & 1;
+			break;
+		case AC_GRP_MODEM_FUNCTION:
+			codec->mfg = nid;
+			codec->mfg_function_id = function_id & 0xff;
+			codec->mfg_unsol = (function_id >> 8) & 1;
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+/**
+ * snd_hdac_refresh_widgets - Reset the widget start/end nodes
+ * @codec: the codec object
+ */
+int snd_hdac_refresh_widgets(struct hdac_device *codec)
+{
+	hda_nid_t start_nid;
+	int nums;
+
+	nums = snd_hdac_get_sub_nodes(codec, codec->afg, &start_nid);
+	if (!start_nid || nums <= 0 || nums >= 0xff) {
+		dev_err(&codec->dev, "cannot read sub nodes for FG 0x%02x\n",
+			codec->afg);
+		return -EINVAL;
+	}
+
+	codec->num_nodes = nums;
+	codec->start_nid = start_nid;
+	codec->end_nid = start_nid + nums;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_refresh_widgets);
+
+/* return CONNLIST_LEN parameter of the given widget */
+static unsigned int get_num_conns(struct hdac_device *codec, hda_nid_t nid)
+{
+	unsigned int wcaps = get_wcaps(codec, nid);
+	unsigned int parm;
+
+	if (!(wcaps & AC_WCAP_CONN_LIST) &&
+	    get_wcaps_type(wcaps) != AC_WID_VOL_KNB)
+		return 0;
+
+	parm = snd_hdac_read_parm(codec, nid, AC_PAR_CONNLIST_LEN);
+	if (parm == -1)
+		parm = 0;
+	return parm;
+}
+
+/**
+ * snd_hdac_get_connections - get a widget connection list
+ * @codec: the codec object
+ * @nid: NID
+ * @conn_list: the array to store the results, can be NULL
+ * @max_conns: the max size of the given array
+ *
+ * Returns the number of connected widgets, zero for no connection, or a
+ * negative error code.  When the number of elements don't fit with the
+ * given array size, it returns -ENOSPC.
+ *
+ * When @conn_list is NULL, it just checks the number of connections.
+ */
+int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid,
+			     hda_nid_t *conn_list, int max_conns)
+{
+	unsigned int parm;
+	int i, conn_len, conns, err;
+	unsigned int shift, num_elems, mask;
+	hda_nid_t prev_nid;
+	int null_count = 0;
+
+	parm = get_num_conns(codec, nid);
+	if (!parm)
+		return 0;
+
+	if (parm & AC_CLIST_LONG) {
+		/* long form */
+		shift = 16;
+		num_elems = 2;
+	} else {
+		/* short form */
+		shift = 8;
+		num_elems = 4;
+	}
+	conn_len = parm & AC_CLIST_LENGTH;
+	mask = (1 << (shift-1)) - 1;
+
+	if (!conn_len)
+		return 0; /* no connection */
+
+	if (conn_len == 1) {
+		/* single connection */
+		err = snd_hdac_read(codec, nid, AC_VERB_GET_CONNECT_LIST, 0,
+				    &parm);
+		if (err < 0)
+			return err;
+		if (conn_list)
+			conn_list[0] = parm & mask;
+		return 1;
+	}
+
+	/* multi connection */
+	conns = 0;
+	prev_nid = 0;
+	for (i = 0; i < conn_len; i++) {
+		int range_val;
+		hda_nid_t val, n;
+
+		if (i % num_elems == 0) {
+			err = snd_hdac_read(codec, nid,
+					    AC_VERB_GET_CONNECT_LIST, i,
+					    &parm);
+			if (err < 0)
+				return -EIO;
+		}
+		range_val = !!(parm & (1 << (shift-1))); /* ranges */
+		val = parm & mask;
+		if (val == 0 && null_count++) {  /* no second chance */
+			dev_dbg(&codec->dev,
+				"invalid CONNECT_LIST verb %x[%i]:%x\n",
+				nid, i, parm);
+			return 0;
+		}
+		parm >>= shift;
+		if (range_val) {
+			/* ranges between the previous and this one */
+			if (!prev_nid || prev_nid >= val) {
+				dev_warn(&codec->dev,
+					 "invalid dep_range_val %x:%x\n",
+					 prev_nid, val);
+				continue;
+			}
+			for (n = prev_nid + 1; n <= val; n++) {
+				if (conn_list) {
+					if (conns >= max_conns)
+						return -ENOSPC;
+					conn_list[conns] = n;
+				}
+				conns++;
+			}
+		} else {
+			if (conn_list) {
+				if (conns >= max_conns)
+					return -ENOSPC;
+				conn_list[conns] = val;
+			}
+			conns++;
+		}
+		prev_nid = val;
+	}
+	return conns;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_get_connections);
+
+#ifdef CONFIG_PM
+/**
+ * snd_hdac_power_up - power up the codec
+ * @codec: the codec object
+ *
+ * This function calls the runtime PM helper to power up the given codec.
+ * Unlike snd_hdac_power_up_pm(), you should call this only for the code
+ * path that isn't included in PM path.  Otherwise it gets stuck.
+ */
+void snd_hdac_power_up(struct hdac_device *codec)
+{
+	pm_runtime_get_sync(&codec->dev);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_power_up);
+
+/**
+ * snd_hdac_power_down - power down the codec
+ * @codec: the codec object
+ */
+void snd_hdac_power_down(struct hdac_device *codec)
+{
+	struct device *dev = &codec->dev;
+
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_power_down);
+#endif
+
+/* codec vendor labels */
+struct hda_vendor_id {
+	unsigned int id;
+	const char *name;
+};
+
+static struct hda_vendor_id hda_vendor_ids[] = {
+	{ 0x1002, "ATI" },
+	{ 0x1013, "Cirrus Logic" },
+	{ 0x1057, "Motorola" },
+	{ 0x1095, "Silicon Image" },
+	{ 0x10de, "Nvidia" },
+	{ 0x10ec, "Realtek" },
+	{ 0x1102, "Creative" },
+	{ 0x1106, "VIA" },
+	{ 0x111d, "IDT" },
+	{ 0x11c1, "LSI" },
+	{ 0x11d4, "Analog Devices" },
+	{ 0x13f6, "C-Media" },
+	{ 0x14f1, "Conexant" },
+	{ 0x17e8, "Chrontel" },
+	{ 0x1854, "LG" },
+	{ 0x1aec, "Wolfson Microelectronics" },
+	{ 0x1af4, "QEMU" },
+	{ 0x434d, "C-Media" },
+	{ 0x8086, "Intel" },
+	{ 0x8384, "SigmaTel" },
+	{} /* terminator */
+};
+
+/* store the codec vendor name */
+static int get_codec_vendor_name(struct hdac_device *codec)
+{
+	const struct hda_vendor_id *c;
+	u16 vendor_id = codec->vendor_id >> 16;
+
+	for (c = hda_vendor_ids; c->id; c++) {
+		if (c->id == vendor_id) {
+			codec->vendor_name = kstrdup(c->name, GFP_KERNEL);
+			return codec->vendor_name ? 0 : -ENOMEM;
+		}
+	}
+
+	codec->vendor_name = kasprintf(GFP_KERNEL, "Generic %04x", vendor_id);
+	return codec->vendor_name ? 0 : -ENOMEM;
+}

sound/hda/hdac_regmap.c

@@ -0,0 +1,472 @@
+/*
+ * Regmap support for HD-audio verbs
+ *
+ * A virtual register is translated to one or more hda verbs for write,
+ * vice versa for read.
+ *
+ * A few limitations:
+ * - Provided for not all verbs but only subset standard non-volatile verbs.
+ * - For reading, only AC_VERB_GET_* variants can be used.
+ * - For writing, mapped to the *corresponding* AC_VERB_SET_* variants,
+ *   so can't handle asymmetric verbs for read and write
+ */
+
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <linux/export.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <sound/core.h>
+#include <sound/hdaudio.h>
+#include <sound/hda_regmap.h>
+
+#ifdef CONFIG_PM
+#define codec_is_running(codec)				\
+	(atomic_read(&(codec)->in_pm) ||		\
+	 !pm_runtime_suspended(&(codec)->dev))
+#else
+#define codec_is_running(codec)		true
+#endif
+
+#define get_verb(reg)	(((reg) >> 8) & 0xfff)
+
+static bool hda_volatile_reg(struct device *dev, unsigned int reg)
+{
+	struct hdac_device *codec = dev_to_hdac_dev(dev);
+	unsigned int verb = get_verb(reg);
+
+	switch (verb) {
+	case AC_VERB_GET_PROC_COEF:
+		return !codec->cache_coef;
+	case AC_VERB_GET_COEF_INDEX:
+	case AC_VERB_GET_PROC_STATE:
+	case AC_VERB_GET_POWER_STATE:
+	case AC_VERB_GET_PIN_SENSE:
+	case AC_VERB_GET_HDMI_DIP_SIZE:
+	case AC_VERB_GET_HDMI_ELDD:
+	case AC_VERB_GET_HDMI_DIP_INDEX:
+	case AC_VERB_GET_HDMI_DIP_DATA:
+	case AC_VERB_GET_HDMI_DIP_XMIT:
+	case AC_VERB_GET_HDMI_CP_CTRL:
+	case AC_VERB_GET_HDMI_CHAN_SLOT:
+	case AC_VERB_GET_DEVICE_SEL:
+	case AC_VERB_GET_DEVICE_LIST:	/* read-only volatile */
+		return true;
+	}
+
+	return false;
+}
+
+static bool hda_writeable_reg(struct device *dev, unsigned int reg)
+{
+	struct hdac_device *codec = dev_to_hdac_dev(dev);
+	unsigned int verb = get_verb(reg);
+	int i;
+
+	for (i = 0; i < codec->vendor_verbs.used; i++) {
+		unsigned int *v = snd_array_elem(&codec->vendor_verbs, i);
+		if (verb == *v)
+			return true;
+	}
+
+	if (codec->caps_overwriting)
+		return true;
+
+	switch (verb & 0xf00) {
+	case AC_VERB_GET_STREAM_FORMAT:
+	case AC_VERB_GET_AMP_GAIN_MUTE:
+		return true;
+	case AC_VERB_GET_PROC_COEF:
+		return codec->cache_coef;
+	case 0xf00:
+		break;
+	default:
+		return false;
+	}
+
+	switch (verb) {
+	case AC_VERB_GET_CONNECT_SEL:
+	case AC_VERB_GET_SDI_SELECT:
+	case AC_VERB_GET_PIN_WIDGET_CONTROL:
+	case AC_VERB_GET_UNSOLICITED_RESPONSE: /* only as SET_UNSOLICITED_ENABLE */
+	case AC_VERB_GET_BEEP_CONTROL:
+	case AC_VERB_GET_EAPD_BTLENABLE:
+	case AC_VERB_GET_DIGI_CONVERT_1:
+	case AC_VERB_GET_DIGI_CONVERT_2: /* only for beep control */
+	case AC_VERB_GET_VOLUME_KNOB_CONTROL:
+	case AC_VERB_GET_GPIO_MASK:
+	case AC_VERB_GET_GPIO_DIRECTION:
+	case AC_VERB_GET_GPIO_DATA: /* not for volatile read */
+	case AC_VERB_GET_GPIO_WAKE_MASK:
+	case AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK:
+	case AC_VERB_GET_GPIO_STICKY_MASK:
+		return true;
+	}
+
+	return false;
+}
+
+static bool hda_readable_reg(struct device *dev, unsigned int reg)
+{
+	struct hdac_device *codec = dev_to_hdac_dev(dev);
+	unsigned int verb = get_verb(reg);
+
+	if (codec->caps_overwriting)
+		return true;
+
+	switch (verb) {
+	case AC_VERB_PARAMETERS:
+	case AC_VERB_GET_CONNECT_LIST:
+	case AC_VERB_GET_SUBSYSTEM_ID:
+		return true;
+	/* below are basically writable, but disabled for reducing unnecessary
+	 * writes at sync
+	 */
+	case AC_VERB_GET_CONFIG_DEFAULT: /* usually just read */
+	case AC_VERB_GET_CONV: /* managed in PCM code */
+	case AC_VERB_GET_CVT_CHAN_COUNT: /* managed in HDMI CA code */
+		return true;
+	}
+
+	return hda_writeable_reg(dev, reg);
+}
+
+/*
+ * Stereo amp pseudo register:
+ * for making easier to handle the stereo volume control, we provide a
+ * fake register to deal both left and right channels by a single
+ * (pseudo) register access.  A verb consisting of SET_AMP_GAIN with
+ * *both* SET_LEFT and SET_RIGHT bits takes a 16bit value, the lower 8bit
+ * for the left and the upper 8bit for the right channel.
+ */
+static bool is_stereo_amp_verb(unsigned int reg)
+{
+	if (((reg >> 8) & 0x700) != AC_VERB_SET_AMP_GAIN_MUTE)
+		return false;
+	return (reg & (AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT)) ==
+		(AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT);
+}
+
+/* read a pseudo stereo amp register (16bit left+right) */
+static int hda_reg_read_stereo_amp(struct hdac_device *codec,
+				   unsigned int reg, unsigned int *val)
+{
+	unsigned int left, right;
+	int err;
+
+	reg &= ~(AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT);
+	err = snd_hdac_exec_verb(codec, reg | AC_AMP_GET_LEFT, 0, &left);
+	if (err < 0)
+		return err;
+	err = snd_hdac_exec_verb(codec, reg | AC_AMP_GET_RIGHT, 0, &right);
+	if (err < 0)
+		return err;
+	*val = left | (right << 8);
+	return 0;
+}
+
+/* write a pseudo stereo amp register (16bit left+right) */
+static int hda_reg_write_stereo_amp(struct hdac_device *codec,
+				    unsigned int reg, unsigned int val)
+{
+	int err;
+	unsigned int verb, left, right;
+
+	verb = AC_VERB_SET_AMP_GAIN_MUTE << 8;
+	if (reg & AC_AMP_GET_OUTPUT)
+		verb |= AC_AMP_SET_OUTPUT;
+	else
+		verb |= AC_AMP_SET_INPUT | ((reg & 0xf) << 8);
+	reg = (reg & ~0xfffff) | verb;
+
+	left = val & 0xff;
+	right = (val >> 8) & 0xff;
+	if (left == right) {
+		reg |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT;
+		return snd_hdac_exec_verb(codec, reg | left, 0, NULL);
+	}
+
+	err = snd_hdac_exec_verb(codec, reg | AC_AMP_SET_LEFT | left, 0, NULL);
+	if (err < 0)
+		return err;
+	err = snd_hdac_exec_verb(codec, reg | AC_AMP_SET_RIGHT | right, 0, NULL);
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+/* read a pseudo coef register (16bit) */
+static int hda_reg_read_coef(struct hdac_device *codec, unsigned int reg,
+			     unsigned int *val)
+{
+	unsigned int verb;
+	int err;
+
+	if (!codec->cache_coef)
+		return -EINVAL;
+	/* LSB 8bit = coef index */
+	verb = (reg & ~0xfff00) | (AC_VERB_SET_COEF_INDEX << 8);
+	err = snd_hdac_exec_verb(codec, verb, 0, NULL);
+	if (err < 0)
+		return err;
+	verb = (reg & ~0xfffff) | (AC_VERB_GET_COEF_INDEX << 8);
+	return snd_hdac_exec_verb(codec, verb, 0, val);
+}
+
+/* write a pseudo coef register (16bit) */
+static int hda_reg_write_coef(struct hdac_device *codec, unsigned int reg,
+			      unsigned int val)
+{
+	unsigned int verb;
+	int err;
+
+	if (!codec->cache_coef)
+		return -EINVAL;
+	/* LSB 8bit = coef index */
+	verb = (reg & ~0xfff00) | (AC_VERB_SET_COEF_INDEX << 8);
+	err = snd_hdac_exec_verb(codec, verb, 0, NULL);
+	if (err < 0)
+		return err;
+	verb = (reg & ~0xfffff) | (AC_VERB_GET_COEF_INDEX << 8) |
+		(val & 0xffff);
+	return snd_hdac_exec_verb(codec, verb, 0, NULL);
+}
+
+static int hda_reg_read(void *context, unsigned int reg, unsigned int *val)
+{
+	struct hdac_device *codec = context;
+	int verb = get_verb(reg);
+	int err;
+
+	if (!codec_is_running(codec) && verb != AC_VERB_GET_POWER_STATE)
+		return -EAGAIN;
+	reg |= (codec->addr << 28);
+	if (is_stereo_amp_verb(reg))
+		return hda_reg_read_stereo_amp(codec, reg, val);
+	if (verb == AC_VERB_GET_PROC_COEF)
+		return hda_reg_read_coef(codec, reg, val);
+	err = snd_hdac_exec_verb(codec, reg, 0, val);
+	if (err < 0)
+		return err;
+	/* special handling for asymmetric reads */
+	if (verb == AC_VERB_GET_POWER_STATE) {
+		if (*val & AC_PWRST_ERROR)
+			*val = -1;
+		else /* take only the actual state */
+			*val = (*val >> 4) & 0x0f;
+	}
+	return 0;
+}
+
+static int hda_reg_write(void *context, unsigned int reg, unsigned int val)
+{
+	struct hdac_device *codec = context;
+	unsigned int verb;
+	int i, bytes, err;
+
+	reg &= ~0x00080000U; /* drop GET bit */
+	reg |= (codec->addr << 28);
+	verb = get_verb(reg);
+
+	if (!codec_is_running(codec) && verb != AC_VERB_SET_POWER_STATE)
+		return codec->lazy_cache ? 0 : -EAGAIN;
+
+	if (is_stereo_amp_verb(reg))
+		return hda_reg_write_stereo_amp(codec, reg, val);
+
+	if (verb == AC_VERB_SET_PROC_COEF)
+		return hda_reg_write_coef(codec, reg, val);
+
+	switch (verb & 0xf00) {
+	case AC_VERB_SET_AMP_GAIN_MUTE:
+		verb = AC_VERB_SET_AMP_GAIN_MUTE;
+		if (reg & AC_AMP_GET_LEFT)
+			verb |= AC_AMP_SET_LEFT >> 8;
+		else
+			verb |= AC_AMP_SET_RIGHT >> 8;
+		if (reg & AC_AMP_GET_OUTPUT) {
+			verb |= AC_AMP_SET_OUTPUT >> 8;
+		} else {
+			verb |= AC_AMP_SET_INPUT >> 8;
+			verb |= reg & 0xf;
+		}
+		break;
+	}
+
+	switch (verb) {
+	case AC_VERB_SET_DIGI_CONVERT_1:
+		bytes = 2;
+		break;
+	case AC_VERB_SET_CONFIG_DEFAULT_BYTES_0:
+		bytes = 4;
+		break;
+	default:
+		bytes = 1;
+		break;
+	}
+
+	for (i = 0; i < bytes; i++) {
+		reg &= ~0xfffff;
+		reg |= (verb + i) << 8 | ((val >> (8 * i)) & 0xff);
+		err = snd_hdac_exec_verb(codec, reg, 0, NULL);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static const struct regmap_config hda_regmap_cfg = {
+	.name = "hdaudio",
+	.reg_bits = 32,
+	.val_bits = 32,
+	.max_register = 0xfffffff,
+	.writeable_reg = hda_writeable_reg,
+	.readable_reg = hda_readable_reg,
+	.volatile_reg = hda_volatile_reg,
+	.cache_type = REGCACHE_RBTREE,
+	.reg_read = hda_reg_read,
+	.reg_write = hda_reg_write,
+	.use_single_rw = true,
+};
+
+int snd_hdac_regmap_init(struct hdac_device *codec)
+{
+	struct regmap *regmap;
+
+	regmap = regmap_init(&codec->dev, NULL, codec, &hda_regmap_cfg);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+	codec->regmap = regmap;
+	snd_array_init(&codec->vendor_verbs, sizeof(unsigned int), 8);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_init);
+
+void snd_hdac_regmap_exit(struct hdac_device *codec)
+{
+	if (codec->regmap) {
+		regmap_exit(codec->regmap);
+		codec->regmap = NULL;
+		snd_array_free(&codec->vendor_verbs);
+	}
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_exit);
+
+/**
+ * snd_hdac_regmap_add_vendor_verb - add a vendor-specific verb to regmap
+ * @codec: the codec object
+ * @verb: verb to allow accessing via regmap
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,
+				    unsigned int verb)
+{
+	unsigned int *p = snd_array_new(&codec->vendor_verbs);
+
+	if (!p)
+		return -ENOMEM;
+	*p = verb;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_add_vendor_verb);
+
+/*
+ * helper functions
+ */
+
+/* write a pseudo-register value (w/o power sequence) */
+static int reg_raw_write(struct hdac_device *codec, unsigned int reg,
+			 unsigned int val)
+{
+	if (!codec->regmap)
+		return hda_reg_write(codec, reg, val);
+	else
+		return regmap_write(codec->regmap, reg, val);
+}
+
+/**
+ * snd_hdac_regmap_write_raw - write a pseudo register with power mgmt
+ * @codec: the codec object
+ * @reg: pseudo register
+ * @val: value to write
+ *
+ * Returns zero if successful or a negative error code.
+ */
+int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg,
+			      unsigned int val)
+{
+	int err;
+
+	err = reg_raw_write(codec, reg, val);
+	if (err == -EAGAIN) {
+		snd_hdac_power_up_pm(codec);
+		err = reg_raw_write(codec, reg, val);
+		snd_hdac_power_down_pm(codec);
+	}
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_write_raw);
+
+static int reg_raw_read(struct hdac_device *codec, unsigned int reg,
+			unsigned int *val)
+{
+	if (!codec->regmap)
+		return hda_reg_read(codec, reg, val);
+	else
+		return regmap_read(codec->regmap, reg, val);
+}
+
+/**
+ * snd_hdac_regmap_read_raw - read a pseudo register with power mgmt
+ * @codec: the codec object
+ * @reg: pseudo register
+ * @val: pointer to store the read value
+ *
+ * Returns zero if successful or a negative error code.
+ */
+int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg,
+			     unsigned int *val)
+{
+	int err;
+
+	err = reg_raw_read(codec, reg, val);
+	if (err == -EAGAIN) {
+		snd_hdac_power_up_pm(codec);
+		err = reg_raw_read(codec, reg, val);
+		snd_hdac_power_down_pm(codec);
+	}
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_read_raw);
+
+/**
+ * snd_hdac_regmap_update_raw - update a pseudo register with power mgmt
+ * @codec: the codec object
+ * @reg: pseudo register
+ * @mask: bit mask to udpate
+ * @val: value to update
+ *
+ * Returns zero if successful or a negative error code.
+ */
+int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg,
+			       unsigned int mask, unsigned int val)
+{
+	unsigned int orig;
+	int err;
+
+	val &= mask;
+	err = snd_hdac_regmap_read_raw(codec, reg, &orig);
+	if (err < 0)
+		return err;
+	val |= orig & ~mask;
+	if (val == orig)
+		return 0;
+	err = snd_hdac_regmap_write_raw(codec, reg, val);
+	if (err < 0)
+		return err;
+	return 1;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_regmap_update_raw);

sound/hda/hdac_sysfs.c

@@ -0,0 +1,404 @@
+/*
+ * sysfs support for HD-audio core device
+ */
+
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/hdaudio.h>
+#include "local.h"
+
+struct hdac_widget_tree {
+	struct kobject *root;
+	struct kobject *afg;
+	struct kobject **nodes;
+};
+
+#define CODEC_ATTR(type)					\
+static ssize_t type##_show(struct device *dev,			\
+			   struct device_attribute *attr,	\
+			   char *buf)				\
+{								\
+	struct hdac_device *codec = dev_to_hdac_dev(dev);	\
+	return sprintf(buf, "0x%x\n", codec->type);		\
+} \
+static DEVICE_ATTR_RO(type)
+
+#define CODEC_ATTR_STR(type)					\
+static ssize_t type##_show(struct device *dev,			\
+			     struct device_attribute *attr,	\
+					char *buf)		\
+{								\
+	struct hdac_device *codec = dev_to_hdac_dev(dev);	\
+	return sprintf(buf, "%s\n",				\
+		       codec->type ? codec->type : "");		\
+} \
+static DEVICE_ATTR_RO(type)
+
+CODEC_ATTR(vendor_id);
+CODEC_ATTR(subsystem_id);
+CODEC_ATTR(revision_id);
+CODEC_ATTR(afg);
+CODEC_ATTR(mfg);
+CODEC_ATTR_STR(vendor_name);
+CODEC_ATTR_STR(chip_name);
+
+static struct attribute *hdac_dev_attrs[] = {
+	&dev_attr_vendor_id.attr,
+	&dev_attr_subsystem_id.attr,
+	&dev_attr_revision_id.attr,
+	&dev_attr_afg.attr,
+	&dev_attr_mfg.attr,
+	&dev_attr_vendor_name.attr,
+	&dev_attr_chip_name.attr,
+	NULL
+};
+
+static struct attribute_group hdac_dev_attr_group = {
+	.attrs	= hdac_dev_attrs,
+};
+
+const struct attribute_group *hdac_dev_attr_groups[] = {
+	&hdac_dev_attr_group,
+	NULL
+};
+
+/*
+ * Widget tree sysfs
+ *
+ * This is a tree showing the attributes of each widget.  It appears like
+ * /sys/bus/hdaudioC0D0/widgets/04/caps
+ */
+
+struct widget_attribute;
+
+struct widget_attribute {
+	struct attribute	attr;
+	ssize_t (*show)(struct hdac_device *codec, hda_nid_t nid,
+			struct widget_attribute *attr, char *buf);
+	ssize_t (*store)(struct hdac_device *codec, hda_nid_t nid,
+			 struct widget_attribute *attr,
+			 const char *buf, size_t count);
+};
+
+static int get_codec_nid(struct kobject *kobj, struct hdac_device **codecp)
+{
+	struct device *dev = kobj_to_dev(kobj->parent->parent);
+	int nid;
+	ssize_t ret;
+
+	ret = kstrtoint(kobj->name, 16, &nid);
+	if (ret < 0)
+		return ret;
+	*codecp = dev_to_hdac_dev(dev);
+	return nid;
+}
+
+static ssize_t widget_attr_show(struct kobject *kobj, struct attribute *attr,
+				char *buf)
+{
+	struct widget_attribute *wid_attr =
+		container_of(attr, struct widget_attribute, attr);
+	struct hdac_device *codec;
+	int nid;
+
+	if (!wid_attr->show)
+		return -EIO;
+	nid = get_codec_nid(kobj, &codec);
+	if (nid < 0)
+		return nid;
+	return wid_attr->show(codec, nid, wid_attr, buf);
+}
+
+static ssize_t widget_attr_store(struct kobject *kobj, struct attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct widget_attribute *wid_attr =
+		container_of(attr, struct widget_attribute, attr);
+	struct hdac_device *codec;
+	int nid;
+
+	if (!wid_attr->store)
+		return -EIO;
+	nid = get_codec_nid(kobj, &codec);
+	if (nid < 0)
+		return nid;
+	return wid_attr->store(codec, nid, wid_attr, buf, count);
+}
+
+static const struct sysfs_ops widget_sysfs_ops = {
+	.show	= widget_attr_show,
+	.store	= widget_attr_store,
+};
+
+static void widget_release(struct kobject *kobj)
+{
+	kfree(kobj);
+}
+
+static struct kobj_type widget_ktype = {
+	.release	= widget_release,
+	.sysfs_ops	= &widget_sysfs_ops,
+};
+
+#define WIDGET_ATTR_RO(_name) \
+	struct widget_attribute wid_attr_##_name = __ATTR_RO(_name)
+#define WIDGET_ATTR_RW(_name) \
+	struct widget_attribute wid_attr_##_name = __ATTR_RW(_name)
+
+static ssize_t caps_show(struct hdac_device *codec, hda_nid_t nid,
+			struct widget_attribute *attr, char *buf)
+{
+	return sprintf(buf, "0x%08x\n", get_wcaps(codec, nid));
+}
+
+static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid,
+			     struct widget_attribute *attr, char *buf)
+{
+	if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP));
+}
+
+static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid,
+			    struct widget_attribute *attr, char *buf)
+{
+	unsigned int val;
+
+	if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
+		return 0;
+	if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
+		return 0;
+	return sprintf(buf, "0x%08x\n", val);
+}
+
+static bool has_pcm_cap(struct hdac_device *codec, hda_nid_t nid)
+{
+	if (nid == codec->afg || nid == codec->mfg)
+		return true;
+	switch (get_wcaps_type(get_wcaps(codec, nid))) {
+	case AC_WID_AUD_OUT:
+	case AC_WID_AUD_IN:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static ssize_t pcm_caps_show(struct hdac_device *codec, hda_nid_t nid,
+			     struct widget_attribute *attr, char *buf)
+{
+	if (!has_pcm_cap(codec, nid))
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_PCM));
+}
+
+static ssize_t pcm_formats_show(struct hdac_device *codec, hda_nid_t nid,
+				struct widget_attribute *attr, char *buf)
+{
+	if (!has_pcm_cap(codec, nid))
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_STREAM));
+}
+
+static ssize_t amp_in_caps_show(struct hdac_device *codec, hda_nid_t nid,
+				struct widget_attribute *attr, char *buf)
+{
+	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_IN_AMP))
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_AMP_IN_CAP));
+}
+
+static ssize_t amp_out_caps_show(struct hdac_device *codec, hda_nid_t nid,
+				 struct widget_attribute *attr, char *buf)
+{
+	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_OUT_AMP))
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_AMP_OUT_CAP));
+}
+
+static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid,
+			       struct widget_attribute *attr, char *buf)
+{
+	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_POWER))
+		return 0;
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE));
+}
+
+static ssize_t gpio_caps_show(struct hdac_device *codec, hda_nid_t nid,
+			      struct widget_attribute *attr, char *buf)
+{
+	return sprintf(buf, "0x%08x\n",
+		       snd_hdac_read_parm(codec, nid, AC_PAR_GPIO_CAP));
+}
+
+static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid,
+				struct widget_attribute *attr, char *buf)
+{
+	hda_nid_t list[32];
+	int i, nconns;
+	ssize_t ret = 0;
+
+	nconns = snd_hdac_get_connections(codec, nid, list, ARRAY_SIZE(list));
+	if (nconns <= 0)
+		return nconns;
+	for (i = 0; i < nconns; i++)
+		ret += sprintf(buf + ret, "%s0x%02x", i ? " " : "", list[i]);
+	ret += sprintf(buf + ret, "\n");
+	return ret;
+}
+
+static WIDGET_ATTR_RO(caps);
+static WIDGET_ATTR_RO(pin_caps);
+static WIDGET_ATTR_RO(pin_cfg);
+static WIDGET_ATTR_RO(pcm_caps);
+static WIDGET_ATTR_RO(pcm_formats);
+static WIDGET_ATTR_RO(amp_in_caps);
+static WIDGET_ATTR_RO(amp_out_caps);
+static WIDGET_ATTR_RO(power_caps);
+static WIDGET_ATTR_RO(gpio_caps);
+static WIDGET_ATTR_RO(connections);
+
+static struct attribute *widget_node_attrs[] = {
+	&wid_attr_caps.attr,
+	&wid_attr_pin_caps.attr,
+	&wid_attr_pin_cfg.attr,
+	&wid_attr_pcm_caps.attr,
+	&wid_attr_pcm_formats.attr,
+	&wid_attr_amp_in_caps.attr,
+	&wid_attr_amp_out_caps.attr,
+	&wid_attr_power_caps.attr,
+	&wid_attr_connections.attr,
+	NULL,
+};
+
+static struct attribute *widget_afg_attrs[] = {
+	&wid_attr_pcm_caps.attr,
+	&wid_attr_pcm_formats.attr,
+	&wid_attr_amp_in_caps.attr,
+	&wid_attr_amp_out_caps.attr,
+	&wid_attr_power_caps.attr,
+	&wid_attr_gpio_caps.attr,
+	NULL,
+};
+
+static const struct attribute_group widget_node_group = {
+	.attrs = widget_node_attrs,
+};
+
+static const struct attribute_group widget_afg_group = {
+	.attrs = widget_afg_attrs,
+};
+
+static void free_widget_node(struct kobject *kobj,
+			     const struct attribute_group *group)
+{
+	if (kobj) {
+		sysfs_remove_group(kobj, group);
+		kobject_put(kobj);
+	}
+}
+
+static void widget_tree_free(struct hdac_device *codec)
+{
+	struct hdac_widget_tree *tree = codec->widgets;
+	struct kobject **p;
+
+	if (!tree)
+		return;
+	free_widget_node(tree->afg, &widget_afg_group);
+	if (tree->nodes) {
+		for (p = tree->nodes; *p; p++)
+			free_widget_node(*p, &widget_node_group);
+		kfree(tree->nodes);
+	}
+	if (tree->root)
+		kobject_put(tree->root);
+	kfree(tree);
+	codec->widgets = NULL;
+}
+
+static int add_widget_node(struct kobject *parent, hda_nid_t nid,
+			   const struct attribute_group *group,
+			   struct kobject **res)
+{
+	struct kobject *kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
+	int err;
+
+	if (!kobj)
+		return -ENOMEM;
+	kobject_init(kobj, &widget_ktype);
+	err = kobject_add(kobj, parent, "%02x", nid);
+	if (err < 0)
+		return err;
+	err = sysfs_create_group(kobj, group);
+	if (err < 0) {
+		kobject_put(kobj);
+		return err;
+	}
+
+	*res = kobj;
+	return 0;
+}
+
+static int widget_tree_create(struct hdac_device *codec)
+{
+	struct hdac_widget_tree *tree;
+	int i, err;
+	hda_nid_t nid;
+
+	tree = codec->widgets = kzalloc(sizeof(*tree), GFP_KERNEL);
+	if (!tree)
+		return -ENOMEM;
+
+	tree->root = kobject_create_and_add("widgets", &codec->dev.kobj);
+	if (!tree->root)
+		return -ENOMEM;
+
+	tree->nodes = kcalloc(codec->num_nodes + 1, sizeof(*tree->nodes),
+			      GFP_KERNEL);
+	if (!tree->nodes)
+		return -ENOMEM;
+
+	for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) {
+		err = add_widget_node(tree->root, nid, &widget_node_group,
+				      &tree->nodes[i]);
+		if (err < 0)
+			return err;
+	}
+
+	if (codec->afg) {
+		err = add_widget_node(tree->root, codec->afg,
+				      &widget_afg_group, &tree->afg);
+		if (err < 0)
+			return err;
+	}
+
+	kobject_uevent(tree->root, KOBJ_CHANGE);
+	return 0;
+}
+
+int hda_widget_sysfs_init(struct hdac_device *codec)
+{
+	int err;
+
+	err = widget_tree_create(codec);
+	if (err < 0) {
+		widget_tree_free(codec);
+		return err;
+	}
+
+	return 0;
+}
+
+void hda_widget_sysfs_exit(struct hdac_device *codec)
+{
+	widget_tree_free(codec);
+}

sound/hda/local.h

@@ -0,0 +1,23 @@
+/*
+ * Local helper macros and functions for HD-audio core drivers
+ */
+
+#ifndef __HDAC_LOCAL_H
+#define __HDAC_LOCAL_H
+
+#define get_wcaps(codec, nid) \
+	snd_hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
+
+/* get the widget type from widget capability bits */
+static inline int get_wcaps_type(unsigned int wcaps)
+{
+	if (!wcaps)
+		return -1; /* invalid type */
+	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+}
+
+extern const struct attribute_group *hdac_dev_attr_groups[];
+int hda_widget_sysfs_init(struct hdac_device *codec);
+void hda_widget_sysfs_exit(struct hdac_device *codec);
+
+#endif /* __HDAC_LOCAL_H */

sound/hda/trace.c

@@ -0,0 +1,6 @@
+/*
+ * tracepoint definitions for HD-audio core drivers
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"

sound/hda/trace.h

@@ -0,0 +1,62 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hda
+
+#if !defined(__HDAC_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __HDAC_TRACE_H
+
+#include <linux/tracepoint.h>
+#include <linux/device.h>
+#include <sound/hdaudio.h>
+
+#ifndef HDAC_MSG_MAX
+#define HDAC_MSG_MAX	500
+#endif
+
+struct hdac_bus;
+struct hdac_codec;
+
+TRACE_EVENT(hda_send_cmd,
+	TP_PROTO(struct hdac_bus *bus, unsigned int cmd),
+	TP_ARGS(bus, cmd),
+	TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
+	TP_fast_assign(
+		snprintf(__get_str(msg), HDAC_MSG_MAX,
+			 "[%s:%d] val=0x%08x",
+			 dev_name((bus)->dev), (cmd) >> 28, cmd);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+TRACE_EVENT(hda_get_response,
+	TP_PROTO(struct hdac_bus *bus, unsigned int addr, unsigned int res),
+	TP_ARGS(bus, addr, res),
+	TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
+	TP_fast_assign(
+		snprintf(__get_str(msg), HDAC_MSG_MAX,
+			 "[%s:%d] val=0x%08x",
+			 dev_name((bus)->dev), addr, res);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+TRACE_EVENT(hda_unsol_event,
+	TP_PROTO(struct hdac_bus *bus, u32 res, u32 res_ex),
+	TP_ARGS(bus, res, res_ex),
+	TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
+	TP_fast_assign(
+		snprintf(__get_str(msg), HDAC_MSG_MAX,
+			 "[%s:%d] res=0x%08x, res_ex=0x%08x",
+			 dev_name((bus)->dev), res_ex & 0x0f, res, res_ex);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+#endif /* __HDAC_TRACE_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>

sound/i2c/other/ak4113.c

@@ -73,7 +73,7 @@ int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
 		void *private_data, struct ak4113 **r_ak4113)
 {
 	struct ak4113 *chip;
-	int err = 0;
+	int err;
 	unsigned char reg;
 	static struct snd_device_ops ops = {
 		.dev_free =     snd_ak4113_dev_free,
@@ -109,7 +109,7 @@ int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
 
 __fail:
 	snd_ak4113_free(chip);
-	return err < 0 ? err : -EIO;
+	return err;
 }
 EXPORT_SYMBOL_GPL(snd_ak4113_create);
 

sound/isa/sb/emu8000_synth.c

@@ -34,8 +34,9 @@ MODULE_LICENSE("GPL");
 /*
  * create a new hardware dependent device for Emu8000
  */
-static int snd_emu8000_new_device(struct snd_seq_device *dev)
+static int snd_emu8000_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_emu8000 *hw;
 	struct snd_emux *emu;
 
@@ -93,8 +94,9 @@ static int snd_emu8000_new_device(struct snd_seq_device *dev)
 /*
  * free all resources
  */
-static int snd_emu8000_delete_device(struct snd_seq_device *dev)
+static int snd_emu8000_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_emu8000 *hw;
 
 	if (dev->driver_data == NULL)
@@ -114,21 +116,14 @@ static int snd_emu8000_delete_device(struct snd_seq_device *dev)
  *  INIT part
  */
 
-static int __init alsa_emu8000_init(void)
-{
-	
-	static struct snd_seq_dev_ops ops = {
-		snd_emu8000_new_device,
-		snd_emu8000_delete_device,
-	};
-	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops,
-					      sizeof(struct snd_emu8000*));
-}
-
-static void __exit alsa_emu8000_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU8000);
-}
-
-module_init(alsa_emu8000_init)
-module_exit(alsa_emu8000_exit)
+static struct snd_seq_driver emu8000_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_emu8000_probe,
+		.remove = snd_emu8000_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_EMU8000,
+	.argsize = sizeof(struct snd_emu8000 *),
+};
+
+module_snd_seq_driver(emu8000_driver);

sound/isa/wavefront/wavefront_fx.c

@@ -79,13 +79,13 @@ wavefront_fx_memset (snd_wavefront_t *dev,
 	if (page < 0 || page > 7) {
 		snd_printk ("FX memset: "
 			"page must be >= 0 and <= 7\n");
-		return -(EINVAL);
+		return -EINVAL;
 	}
 
 	if (addr < 0 || addr > 0x7f) {
 		snd_printk ("FX memset: "
 			"addr must be >= 0 and <= 7f\n");
-		return -(EINVAL);
+		return -EINVAL;
 	}
 
 	if (cnt == 1) {
@@ -118,7 +118,7 @@ wavefront_fx_memset (snd_wavefront_t *dev,
 			snd_printk ("FX memset "
 				    "(0x%x, 0x%x, 0x%lx, %d) incomplete\n",
 				    page, addr, (unsigned long) data, cnt);
-			return -(EIO);
+			return -EIO;
 		}
 	}
 

sound/isa/wavefront/wavefront_synth.c

@@ -793,7 +793,7 @@ wavefront_send_patch (snd_wavefront_t *dev, wavefront_patch_info *header)
     
 	if (snd_wavefront_cmd (dev, WFC_DOWNLOAD_PATCH, NULL, buf)) {
 		snd_printk ("download patch failed\n");
-		return -(EIO);
+		return -EIO;
 	}
 
 	return (0);
@@ -831,7 +831,7 @@ wavefront_send_program (snd_wavefront_t *dev, wavefront_patch_info *header)
     
 	if (snd_wavefront_cmd (dev, WFC_DOWNLOAD_PROGRAM, NULL, buf)) {
 		snd_printk ("download patch failed\n");	
-		return -(EIO);
+		return -EIO;
 	}
 
 	return (0);
@@ -952,7 +952,7 @@ wavefront_send_sample (snd_wavefront_t *dev,
 	if (skip > 0 && header->hdr.s.SampleResolution != LINEAR_16BIT) {
 		snd_printk ("channel selection only "
 			    "possible on 16-bit samples");
-		return -(EINVAL);
+		return -EINVAL;
 	}
 
 	switch (skip) {
@@ -1049,7 +1049,7 @@ wavefront_send_sample (snd_wavefront_t *dev,
 			   NULL, sample_hdr)) {
 		snd_printk ("sample %sdownload refused.\n",
 			    header->size ? "" : "header ");
-		return -(EIO);
+		return -EIO;
 	}
 
 	if (header->size == 0) {
@@ -1075,7 +1075,7 @@ wavefront_send_sample (snd_wavefront_t *dev,
 		if (snd_wavefront_cmd (dev, WFC_DOWNLOAD_BLOCK, NULL, NULL)) {
 			snd_printk ("download block "
 				    "request refused.\n");
-			return -(EIO);
+			return -EIO;
 		}
 
 		for (i = 0; i < blocksize; i++) {
@@ -1135,12 +1135,12 @@ wavefront_send_sample (snd_wavefront_t *dev,
 			if (dma_ack == -1) {
 				snd_printk ("upload sample "
 					    "DMA ack timeout\n");
-				return -(EIO);
+				return -EIO;
 			} else {
 				snd_printk ("upload sample "
 					    "DMA ack error 0x%x\n",
 					    dma_ack);
-				return -(EIO);
+				return -EIO;
 			}
 		}
 	}
@@ -1181,7 +1181,7 @@ wavefront_send_alias (snd_wavefront_t *dev, wavefront_patch_info *header)
 
 	if (snd_wavefront_cmd (dev, WFC_DOWNLOAD_SAMPLE_ALIAS, NULL, alias_hdr)) {
 		snd_printk ("download alias failed.\n");
-		return -(EIO);
+		return -EIO;
 	}
 
 	dev->sample_status[header->number] = (WF_SLOT_FILLED|WF_ST_ALIAS);
@@ -1232,7 +1232,7 @@ wavefront_send_multisample (snd_wavefront_t *dev, wavefront_patch_info *header)
 			   msample_hdr)) {
 		snd_printk ("download of multisample failed.\n");
 		kfree(msample_hdr);
-		return -(EIO);
+		return -EIO;
 	}
 
 	dev->sample_status[header->number] = (WF_SLOT_FILLED|WF_ST_MULTISAMPLE);
@@ -1254,7 +1254,7 @@ wavefront_fetch_multisample (snd_wavefront_t *dev,
     
 	if (snd_wavefront_cmd (dev, WFC_UPLOAD_MULTISAMPLE, log_ns, number)) {
 		snd_printk ("upload multisample failed.\n");
-		return -(EIO);
+		return -EIO;
 	}
     
 	DPRINT (WF_DEBUG_DATA, "msample %d has %d samples\n",
@@ -1273,14 +1273,14 @@ wavefront_fetch_multisample (snd_wavefront_t *dev,
 		if ((val = wavefront_read (dev)) == -1) {
 			snd_printk ("upload multisample failed "
 				    "during sample loop.\n");
-			return -(EIO);
+			return -EIO;
 		}
 		d[0] = val;
 
 		if ((val = wavefront_read (dev)) == -1) {
 			snd_printk ("upload multisample failed "
 				    "during sample loop.\n");
-			return -(EIO);
+			return -EIO;
 		}
 		d[1] = val;
 	
@@ -1315,7 +1315,7 @@ wavefront_send_drum (snd_wavefront_t *dev, wavefront_patch_info *header)
 
 	if (snd_wavefront_cmd (dev, WFC_DOWNLOAD_EDRUM_PROGRAM, NULL, drumbuf)) {
 		snd_printk ("download drum failed.\n");
-		return -(EIO);
+		return -EIO;
 	}
 
 	return (0);

sound/mips/au1x00.c

@@ -633,19 +633,25 @@ static int au1000_ac97_probe(struct platform_device *pdev)
 
 	au1000->stream[PLAYBACK] = kmalloc(sizeof(struct audio_stream),
 					   GFP_KERNEL);
-	if (!au1000->stream[PLAYBACK])
+	if (!au1000->stream[PLAYBACK]) {
+		err = -ENOMEM;
 		goto out;
+	}
 	au1000->stream[PLAYBACK]->dma = -1;
 
 	au1000->stream[CAPTURE] = kmalloc(sizeof(struct audio_stream),
 					  GFP_KERNEL);
-	if (!au1000->stream[CAPTURE])
+	if (!au1000->stream[CAPTURE]) {
+		err = -ENOMEM;
 		goto out;
+	}
 	au1000->stream[CAPTURE]->dma = -1;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r)
+	if (!r) {
+		err = -ENODEV;
 		goto out;
+	}
 
 	err = -EBUSY;
 	au1000->ac97_res_port = request_mem_region(r->start, resource_size(r),

sound/oss/dev_table.c

@@ -58,13 +58,13 @@ int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver,
 
 	if (vers != AUDIO_DRIVER_VERSION || driver_size > sizeof(struct audio_driver)) {
 		printk(KERN_ERR "Sound: Incompatible audio driver for %s\n", name);
-		return -(EINVAL);
+		return -EINVAL;
 	}
 	num = sound_alloc_audiodev();
 
 	if (num == -1) {
 		printk(KERN_ERR "sound: Too many audio drivers\n");
-		return -(EBUSY);
+		return -EBUSY;
 	}
 	d = (struct audio_driver *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct audio_driver)));
 	sound_nblocks++;
@@ -79,7 +79,7 @@ int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver,
 	if (d == NULL || op == NULL) {
 		printk(KERN_ERR "Sound: Can't allocate driver for (%s)\n", name);
 		sound_unload_audiodev(num);
-		return -(ENOMEM);
+		return -ENOMEM;
 	}
 	init_waitqueue_head(&op->in_sleeper);
 	init_waitqueue_head(&op->out_sleeper);	

sound/oss/opl3.c

@@ -666,7 +666,7 @@ static int opl3_start_note (int dev, int voice, int note, int volume)
 	opl3_command(map->ioaddr, FNUM_LOW + map->voice_num, data);
 
 	data = 0x20 | ((block & 0x7) << 2) | ((fnum >> 8) & 0x3);
-		 devc->voc[voice].keyon_byte = data;
+	devc->voc[voice].keyon_byte = data;
 	opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, data);
 	if (voice_mode == 4)
 		opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num + 3, data);
@@ -717,7 +717,7 @@ static void freq_to_fnum    (int freq, int *block, int *fnum)
 
 static void opl3_command    (int io_addr, unsigned int addr, unsigned int val)
 {
-	 int i;
+	int i;
 
 	/*
 	 * The original 2-OP synth requires a quite long delay after writing to a

sound/oss/sb_ess.c

@@ -604,7 +604,7 @@ static void ess_audio_output_block_audio2
 	ess_chgmixer (devc, 0x78, 0x03, 0x03);   /* Go */
 
 	devc->irq_mode_16 = IMODE_OUTPUT;
-		devc->intr_active_16 = 1;
+	devc->intr_active_16 = 1;
 }
 
 static void ess_audio_output_block
@@ -1183,17 +1183,12 @@ FKS_test (devc);
 			chip = "ES1688";
 		}
 
-	    printk ( KERN_INFO "ESS chip %s %s%s\n"
-               , chip
-               , ( devc->sbmo.esstype == ESSTYPE_DETECT || devc->sbmo.esstype == ESSTYPE_LIKE20
-                 ? "detected"
-                 : "specified"
-                 )
-               , ( devc->sbmo.esstype == ESSTYPE_LIKE20
-                 ? " (kernel 2.0 compatible)"
-                 : ""
-                 )
-               );
+		printk(KERN_INFO "ESS chip %s %s%s\n", chip,
+		       (devc->sbmo.esstype == ESSTYPE_DETECT ||
+			devc->sbmo.esstype == ESSTYPE_LIKE20) ?
+				"detected" : "specified",
+			devc->sbmo.esstype == ESSTYPE_LIKE20 ?
+				" (kernel 2.0 compatible)" : "");
 
 		sprintf(name,"ESS %s AudioDrive (rev %d)", chip, ess_minor & 0x0f);
 	} else {

sound/oss/sb_midi.c

@@ -179,14 +179,14 @@ void sb_dsp_midi_init(sb_devc * devc, struct module *owner)
 	{
 		printk(KERN_WARNING "Sound Blaster:  failed to allocate MIDI memory.\n");
 		sound_unload_mididev(dev);
-		  return;
+		return;
 	}
 	memcpy((char *) midi_devs[dev], (char *) &sb_midi_operations,
 	       sizeof(struct midi_operations));
 
 	if (owner)
-			midi_devs[dev]->owner = owner;
-	
+		midi_devs[dev]->owner = owner;
+
 	midi_devs[dev]->devc = devc;
 
 

sound/oss/sys_timer.c

@@ -50,29 +50,24 @@ tmr2ticks(int tmr_value)
 static void
 poll_def_tmr(unsigned long dummy)
 {
+	if (!opened)
+		return;
+	def_tmr.expires = (1) + jiffies;
+	add_timer(&def_tmr);
 
-	if (opened)
-	  {
+	if (!tmr_running)
+		return;
 
-		  {
-			  def_tmr.expires = (1) + jiffies;
-			  add_timer(&def_tmr);
-		  }
+	spin_lock(&lock);
+	tmr_ctr++;
+	curr_ticks = ticks_offs + tmr2ticks(tmr_ctr);
 
-		  if (tmr_running)
-		    {
-				spin_lock(&lock);
-			    tmr_ctr++;
-			    curr_ticks = ticks_offs + tmr2ticks(tmr_ctr);
-
-			    if (curr_ticks >= next_event_time)
-			      {
-				      next_event_time = (unsigned long) -1;
-				      sequencer_timer(0);
-			      }
-				spin_unlock(&lock);
-		    }
-	  }
+	if (curr_ticks >= next_event_time) {
+		next_event_time = (unsigned long) -1;
+		sequencer_timer(0);
+	}
+
+	spin_unlock(&lock);
 }
 
 static void

sound/oss/v_midi.c

@@ -49,13 +49,13 @@ static int v_midi_open (int dev, int mode,
 	unsigned long flags;
 
 	if (devc == NULL)
-		return -(ENXIO);
+		return -ENXIO;
 
 	spin_lock_irqsave(&devc->lock,flags);
 	if (devc->opened)
 	{
 		spin_unlock_irqrestore(&devc->lock,flags);
-		return -(EBUSY);
+		return -EBUSY;
 	}
 	devc->opened = 1;
 	spin_unlock_irqrestore(&devc->lock,flags);

sound/pci/ac97/ac97_codec.c

@@ -177,6 +177,7 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = {
 { 0x54524123, 0xffffffff, "TR28602",		NULL,		NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 { 0x54584e03, 0xffffffff, "TLV320AIC27",	NULL,		NULL },
 { 0x54584e20, 0xffffffff, "TLC320AD9xC",	NULL,		NULL },
+{ 0x56494120, 0xfffffff0, "VIA1613",		patch_vt1613,	NULL },
 { 0x56494161, 0xffffffff, "VIA1612A",		NULL,		NULL }, // modified ICE1232 with S/PDIF
 { 0x56494170, 0xffffffff, "VIA1617A",		patch_vt1617a,	NULL }, // modified VT1616 with S/PDIF
 { 0x56494182, 0xffffffff, "VIA1618",		patch_vt1618,   NULL },
@@ -2901,7 +2902,8 @@ static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
  * Return: Zero if successful, or a negative error code on failure.
  */
 
-int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
+int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
+			   const struct ac97_quirk *quirk, const char *override)
 {
 	int result;
 

sound/pci/ac97/ac97_patch.c

@@ -3351,6 +3351,33 @@ static int patch_cm9780(struct snd_ac97 *ac97)
 	return 0;
 }
 
+/*
+ * VIA VT1613 codec
+ */
+static const struct snd_kcontrol_new snd_ac97_controls_vt1613[] = {
+AC97_SINGLE("DC Offset removal", 0x5a, 10, 1, 0),
+};
+
+static int patch_vt1613_specific(struct snd_ac97 *ac97)
+{
+	return patch_build_controls(ac97, &snd_ac97_controls_vt1613[0],
+				    ARRAY_SIZE(snd_ac97_controls_vt1613));
+};
+
+static const struct snd_ac97_build_ops patch_vt1613_ops = {
+	.build_specific	= patch_vt1613_specific
+};
+
+static int patch_vt1613(struct snd_ac97 *ac97)
+{
+	ac97->build_ops = &patch_vt1613_ops;
+
+	ac97->flags |= AC97_HAS_NO_VIDEO;
+	ac97->caps |= AC97_BC_HEADPHONE;
+
+	return 0;
+}
+
 /*
  * VIA VT1616 codec
  */

sound/pci/ad1889.c

@@ -747,7 +747,7 @@ snd_ad1889_proc_init(struct snd_ad1889 *chip)
 		snd_info_set_text_ops(entry, chip, snd_ad1889_proc_read);
 }
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x11d4,	/* AD */
 		.subdevice = 0x1889,	/* AD1889 */

sound/pci/asihpi/asihpi.c

@@ -2376,7 +2376,7 @@ static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
 /*------------------------------------------------------------
    Sampleclock source  controls
  ------------------------------------------------------------*/
-static const char const *sampleclock_sources[] = {
+static const char * const sampleclock_sources[] = {
 	"N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
 	"SMPTE", "Digital1", "Auto", "Network", "Invalid",
 	"Prev Module", "BLU-Link",

sound/pci/atiixp.c

@@ -1390,7 +1390,7 @@ static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
  * ac97 mixer section
  */
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x103c,
 		.subdevice = 0x006b,

sound/pci/azt3328.c

@@ -1385,8 +1385,8 @@ snd_azf3328_ctrl_codec_activity(struct snd_azf3328 *chip,
 					.running)
 			     &&  (!chip->codecs[peer_codecs[codec_type].other2]
 					.running));
-		 }
-		 if (call_function)
+		}
+		if (call_function)
 			snd_azf3328_ctrl_enable_codecs(chip, enable);
 
 		/* ...and adjust clock, too
@@ -2126,7 +2126,8 @@ static struct snd_pcm_ops snd_azf3328_i2s_out_ops = {
 static int
 snd_azf3328_pcm(struct snd_azf3328 *chip)
 {
-enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS }; /* pcm devices */
+	/* pcm devices */
+	enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS };
 
 	struct snd_pcm *pcm;
 	int err;

sound/pci/cmipci.c

@@ -2062,7 +2062,7 @@ static int snd_cmipci_get_volume(struct snd_kcontrol *kcontrol,
 		val = (snd_cmipci_mixer_read(cm, reg.right_reg) >> reg.right_shift) & reg.mask;
 		if (reg.invert)
 			val = reg.mask - val;
-		 ucontrol->value.integer.value[1] = val;
+		ucontrol->value.integer.value[1] = val;
 	}
 	spin_unlock_irq(&cm->reg_lock);
 	return 0;

sound/pci/cs5535audio/cs5535audio.c

@@ -43,7 +43,7 @@ static char *ac97_quirk;
 module_param(ac97_quirk, charp, 0444);
 MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds.");
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 #if 0 /* Not yet confirmed if all 5536 boards are HP only */
 	{
 		.subvendor = PCI_VENDOR_ID_AMD, 

sound/pci/echoaudio/echoaudio.c

@@ -1283,12 +1283,14 @@ static int snd_echo_mixer_info(struct snd_kcontrol *kcontrol,
 static int snd_echo_mixer_get(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
-	struct echoaudio *chip;
+	struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int out = ucontrol->id.index / num_busses_in(chip);
+	unsigned int in = ucontrol->id.index % num_busses_in(chip);
 
-	chip = snd_kcontrol_chip(kcontrol);
-	ucontrol->value.integer.value[0] =
-		chip->monitor_gain[ucontrol->id.index / num_busses_in(chip)]
-			[ucontrol->id.index % num_busses_in(chip)];
+	if (out >= ECHO_MAXAUDIOOUTPUTS || in >= ECHO_MAXAUDIOINPUTS)
+		return -EINVAL;
+
+	ucontrol->value.integer.value[0] = chip->monitor_gain[out][in];
 	return 0;
 }
 
@@ -1297,12 +1299,14 @@ static int snd_echo_mixer_put(struct snd_kcontrol *kcontrol,
 {
 	struct echoaudio *chip;
 	int changed,  gain;
-	short out, in;
+	unsigned int out, in;
 
 	changed = 0;
 	chip = snd_kcontrol_chip(kcontrol);
 	out = ucontrol->id.index / num_busses_in(chip);
 	in = ucontrol->id.index % num_busses_in(chip);
+	if (out >= ECHO_MAXAUDIOOUTPUTS || in >= ECHO_MAXAUDIOINPUTS)
+		return -EINVAL;
 	gain = ucontrol->value.integer.value[0];
 	if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
 		return -EINVAL;

sound/pci/emu10k1/emu10k1_main.c

@@ -707,6 +707,7 @@ static int emu1010_firmware_thread(void *data)
 {
 	struct snd_emu10k1 *emu = data;
 	u32 tmp, tmp2, reg;
+	u32 last_reg = 0;
 	int err;
 
 	for (;;) {
@@ -782,7 +783,15 @@ static int emu1010_firmware_thread(void *data)
 			msleep(10);
 			/* Unmute all. Default is muted after a firmware load */
 			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
+		} else if (!reg && last_reg) {
+			/* Audio Dock removed */
+			dev_info(emu->card->dev,
+				 "emu1010: Audio Dock detached\n");
+			/* Unmute all */
+			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
 		}
+
+		last_reg = reg;
 	}
 	dev_info(emu->card->dev, "emu1010: firmware thread stopping\n");
 	return 0;
@@ -1325,6 +1334,22 @@ static int snd_emu10k1_dev_free(struct snd_device *device)
 }
 
 static struct snd_emu_chip_details emu_chip_details[] = {
+	/* Audigy 5/Rx SB1550 */
+	/* Tested by michael@gernoth.net 28 Mar 2015 */
+	/* DSP: CA10300-IAT LF
+	 * DAC: Cirrus Logic CS4382-KQZ
+	 * ADC: Philips 1361T
+	 * AC97: Sigmatel STAC9750
+	 * CA0151: None
+	 */
+	{.vendor = 0x1102, .device = 0x0008, .subsystem = 0x10241102,
+	 .driver = "Audigy2", .name = "SB Audigy 5/Rx [SB1550]",
+	 .id = "Audigy2",
+	 .emu10k2_chip = 1,
+	 .ca0108_chip = 1,
+	 .spk71 = 1,
+	 .adc_1361t = 1,  /* 24 bit capture instead of 16bit */
+	 .ac97_chip = 1},
 	/* Audigy4 (Not PRO) SB0610 */
 	/* Tested by James@superbug.co.uk 4th April 2006 */
 	/* A_IOCFG bits

sound/pci/emu10k1/emu10k1_synth.c

@@ -29,8 +29,9 @@ MODULE_LICENSE("GPL");
 /*
  * create a new hardware dependent device for Emu10k1
  */
-static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
+static int snd_emu10k1_synth_probe(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_emux *emux;
 	struct snd_emu10k1 *hw;
 	struct snd_emu10k1_synth_arg *arg;
@@ -79,8 +80,9 @@ static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
 	return 0;
 }
 
-static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
+static int snd_emu10k1_synth_remove(struct device *_dev)
 {
+	struct snd_seq_device *dev = to_seq_dev(_dev);
 	struct snd_emux *emux;
 	struct snd_emu10k1 *hw;
 	unsigned long flags;
@@ -104,21 +106,14 @@ static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
  *  INIT part
  */
 
-static int __init alsa_emu10k1_synth_init(void)
-{
-	
-	static struct snd_seq_dev_ops ops = {
-		snd_emu10k1_synth_new_device,
-		snd_emu10k1_synth_delete_device,
-	};
-	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
-					      sizeof(struct snd_emu10k1_synth_arg));
-}
-
-static void __exit alsa_emu10k1_synth_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
-}
-
-module_init(alsa_emu10k1_synth_init)
-module_exit(alsa_emu10k1_synth_exit)
+static struct snd_seq_driver emu10k1_synth_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe = snd_emu10k1_synth_probe,
+		.remove = snd_emu10k1_synth_remove,
+	},
+	.id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
+	.argsize = sizeof(struct snd_emu10k1_synth_arg),
+};
+
+module_snd_seq_driver(emu10k1_synth_driver);

sound/pci/emu10k1/emumixer.c

@@ -806,6 +806,108 @@ static struct snd_kcontrol_new snd_emu1010_internal_clock =
 	.put =          snd_emu1010_internal_clock_put
 };
 
+static int snd_emu1010_optical_out_info(struct snd_kcontrol *kcontrol,
+					  struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[2] = {
+		"SPDIF", "ADAT"
+	};
+
+	return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_emu1010_optical_out_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.enumerated.item[0] = emu->emu1010.optical_out;
+	return 0;
+}
+
+static int snd_emu1010_optical_out_put(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	u32 tmp;
+	int change = 0;
+
+	val = ucontrol->value.enumerated.item[0];
+	/* Limit: uinfo->value.enumerated.items = 2; */
+	if (val >= 2)
+		return -EINVAL;
+	change = (emu->emu1010.optical_out != val);
+	if (change) {
+		emu->emu1010.optical_out = val;
+		tmp = (emu->emu1010.optical_in ? EMU_HANA_OPTICAL_IN_ADAT : 0) |
+			(emu->emu1010.optical_out ? EMU_HANA_OPTICAL_OUT_ADAT : 0);
+		snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, tmp);
+	}
+	return change;
+}
+
+static struct snd_kcontrol_new snd_emu1010_optical_out = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Optical Output Mode",
+	.count =	1,
+	.info =         snd_emu1010_optical_out_info,
+	.get =          snd_emu1010_optical_out_get,
+	.put =          snd_emu1010_optical_out_put
+};
+
+static int snd_emu1010_optical_in_info(struct snd_kcontrol *kcontrol,
+					  struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[2] = {
+		"SPDIF", "ADAT"
+	};
+
+	return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_emu1010_optical_in_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.enumerated.item[0] = emu->emu1010.optical_in;
+	return 0;
+}
+
+static int snd_emu1010_optical_in_put(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	u32 tmp;
+	int change = 0;
+
+	val = ucontrol->value.enumerated.item[0];
+	/* Limit: uinfo->value.enumerated.items = 2; */
+	if (val >= 2)
+		return -EINVAL;
+	change = (emu->emu1010.optical_in != val);
+	if (change) {
+		emu->emu1010.optical_in = val;
+		tmp = (emu->emu1010.optical_in ? EMU_HANA_OPTICAL_IN_ADAT : 0) |
+			(emu->emu1010.optical_out ? EMU_HANA_OPTICAL_OUT_ADAT : 0);
+		snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, tmp);
+	}
+	return change;
+}
+
+static struct snd_kcontrol_new snd_emu1010_optical_in = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Optical Input Mode",
+	.count =	1,
+	.info =         snd_emu1010_optical_in_info,
+	.get =          snd_emu1010_optical_in_get,
+	.put =          snd_emu1010_optical_in_put
+};
+
 static int snd_audigy_i2c_capture_source_info(struct snd_kcontrol *kcontrol,
 					  struct snd_ctl_elem_info *uinfo)
 {
@@ -2051,6 +2153,14 @@ int snd_emu10k1_mixer(struct snd_emu10k1 *emu,
 			snd_ctl_new1(&snd_emu1010_internal_clock, emu));
 		if (err < 0)
 			return err;
+		err = snd_ctl_add(card,
+			snd_ctl_new1(&snd_emu1010_optical_out, emu));
+		if (err < 0)
+			return err;
+		err = snd_ctl_add(card,
+			snd_ctl_new1(&snd_emu1010_optical_in, emu));
+		if (err < 0)
+			return err;
 
 	} else if (emu->card_capabilities->emu_model) {
 		/* all other e-mu cards for now */
@@ -2086,6 +2196,14 @@ int snd_emu10k1_mixer(struct snd_emu10k1 *emu,
 			snd_ctl_new1(&snd_emu1010_internal_clock, emu));
 		if (err < 0)
 			return err;
+		err = snd_ctl_add(card,
+			snd_ctl_new1(&snd_emu1010_optical_out, emu));
+		if (err < 0)
+			return err;
+		err = snd_ctl_add(card,
+			snd_ctl_new1(&snd_emu1010_optical_in, emu));
+		if (err < 0)
+			return err;
 	}
 
 	if ( emu->card_capabilities->i2c_adc) {

sound/pci/hda/Kconfig

@@ -5,6 +5,7 @@ config SND_HDA
 	select SND_PCM
 	select SND_VMASTER
 	select SND_KCTL_JACK
+	select SND_HDA_CORE
 
 config SND_HDA_INTEL
 	tristate "HD Audio PCI"

sound/pci/hda/Makefile

@@ -4,13 +4,12 @@ snd-hda-tegra-objs := hda_tegra.o
 # for haswell power well
 snd-hda-intel-$(CONFIG_SND_HDA_I915) +=	hda_i915.o
 
-snd-hda-codec-y := hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o
+snd-hda-codec-y := hda_bind.o hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o
 snd-hda-codec-$(CONFIG_PROC_FS) += hda_proc.o
 snd-hda-codec-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
 snd-hda-codec-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o
 
 # for trace-points
-CFLAGS_hda_codec.o := -I$(src)
 CFLAGS_hda_controller.o := -I$(src)
 
 snd-hda-codec-generic-objs :=	hda_generic.o

sound/pci/hda/hda_auto_parser.c

@@ -172,7 +172,7 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
 			     const hda_nid_t *ignore_nids,
 			     unsigned int cond_flags)
 {
-	hda_nid_t nid, end_nid;
+	hda_nid_t nid;
 	short seq, assoc_line_out;
 	struct auto_out_pin line_out[ARRAY_SIZE(cfg->line_out_pins)];
 	struct auto_out_pin speaker_out[ARRAY_SIZE(cfg->speaker_pins)];
@@ -189,8 +189,7 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
 	memset(hp_out, 0, sizeof(hp_out));
 	assoc_line_out = 0;
 
-	end_nid = codec->start_nid + codec->num_nodes;
-	for (nid = codec->start_nid; nid < end_nid; nid++) {
+	for_each_hda_codec_node(nid, codec) {
 		unsigned int wid_caps = get_wcaps(codec, nid);
 		unsigned int wid_type = get_wcaps_type(wid_caps);
 		unsigned int def_conf;
@@ -410,7 +409,7 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
 	 * debug prints of the parsed results
 	 */
 	codec_info(codec, "autoconfig for %s: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x) type:%s\n",
-		   codec->chip_name, cfg->line_outs, cfg->line_out_pins[0],
+		   codec->core.chip_name, cfg->line_outs, cfg->line_out_pins[0],
 		   cfg->line_out_pins[1], cfg->line_out_pins[2],
 		   cfg->line_out_pins[3], cfg->line_out_pins[4],
 		   cfg->line_out_type == AUTO_PIN_HP_OUT ? "hp" :
@@ -836,33 +835,33 @@ static void apply_fixup(struct hda_codec *codec, int id, int action, int depth)
 			if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins)
 				break;
 			codec_dbg(codec, "%s: Apply pincfg for %s\n",
-				    codec->chip_name, modelname);
+				    codec->core.chip_name, modelname);
 			snd_hda_apply_pincfgs(codec, fix->v.pins);
 			break;
 		case HDA_FIXUP_VERBS:
 			if (action != HDA_FIXUP_ACT_PROBE || !fix->v.verbs)
 				break;
 			codec_dbg(codec, "%s: Apply fix-verbs for %s\n",
-				    codec->chip_name, modelname);
+				    codec->core.chip_name, modelname);
 			snd_hda_add_verbs(codec, fix->v.verbs);
 			break;
 		case HDA_FIXUP_FUNC:
 			if (!fix->v.func)
 				break;
 			codec_dbg(codec, "%s: Apply fix-func for %s\n",
-				    codec->chip_name, modelname);
+				    codec->core.chip_name, modelname);
 			fix->v.func(codec, fix, action);
 			break;
 		case HDA_FIXUP_PINCTLS:
 			if (action != HDA_FIXUP_ACT_PROBE || !fix->v.pins)
 				break;
 			codec_dbg(codec, "%s: Apply pinctl for %s\n",
-				    codec->chip_name, modelname);
+				    codec->core.chip_name, modelname);
 			set_pin_targets(codec, fix->v.pins);
 			break;
 		default:
 			codec_err(codec, "%s: Invalid fixup type %d\n",
-				   codec->chip_name, fix->type);
+				   codec->core.chip_name, fix->type);
 			break;
 		}
 		if (!fix->chained || fix->chained_before)
@@ -912,16 +911,16 @@ void snd_hda_pick_pin_fixup(struct hda_codec *codec,
 		return;
 
 	for (pq = pin_quirk; pq->subvendor; pq++) {
-		if ((codec->subsystem_id & 0xffff0000) != (pq->subvendor << 16))
+		if ((codec->core.subsystem_id & 0xffff0000) != (pq->subvendor << 16))
 			continue;
-		if (codec->vendor_id != pq->codec)
+		if (codec->core.vendor_id != pq->codec)
 			continue;
 		if (pin_config_match(codec, pq->pins)) {
 			codec->fixup_id = pq->value;
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 			codec->fixup_name = pq->name;
 			codec_dbg(codec, "%s: picked fixup %s (pin match)\n",
-				  codec->chip_name, codec->fixup_name);
+				  codec->core.chip_name, codec->fixup_name);
 #endif
 			codec->fixup_list = fixlist;
 			return;
@@ -963,7 +962,7 @@ void snd_hda_pick_fixup(struct hda_codec *codec,
 		codec->fixup_name = NULL;
 		codec->fixup_id = HDA_FIXUP_ID_NO_FIXUP;
 		codec_dbg(codec, "%s: picked no fixup (nofixup specified)\n",
-			  codec->chip_name);
+			  codec->core.chip_name);
 		return;
 	}
 
@@ -974,7 +973,7 @@ void snd_hda_pick_fixup(struct hda_codec *codec,
 				codec->fixup_name = models->name;
 				codec->fixup_list = fixlist;
 				codec_dbg(codec, "%s: picked fixup %s (model specified)\n",
-					  codec->chip_name, codec->fixup_name);
+					  codec->core.chip_name, codec->fixup_name);
 				return;
 			}
 			models++;
@@ -987,7 +986,7 @@ void snd_hda_pick_fixup(struct hda_codec *codec,
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 			name = q->name;
 			codec_dbg(codec, "%s: picked fixup %s (PCI SSID%s)\n",
-				  codec->chip_name, name, q->subdevice_mask ? "" : " - vendor generic");
+				  codec->core.chip_name, name, q->subdevice_mask ? "" : " - vendor generic");
 #endif
 		}
 	}
@@ -996,12 +995,12 @@ void snd_hda_pick_fixup(struct hda_codec *codec,
 			unsigned int vendorid =
 				q->subdevice | (q->subvendor << 16);
 			unsigned int mask = 0xffff0000 | q->subdevice_mask;
-			if ((codec->subsystem_id & mask) == (vendorid & mask)) {
+			if ((codec->core.subsystem_id & mask) == (vendorid & mask)) {
 				id = q->value;
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 				name = q->name;
 				codec_dbg(codec, "%s: picked fixup %s (codec SSID)\n",
-					  codec->chip_name, name);
+					  codec->core.chip_name, name);
 #endif
 				break;
 			}

sound/pci/hda/hda_beep.c

@@ -33,30 +33,36 @@ enum {
 	DIGBEEP_HZ_MAX = 12000000,	/* 12 KHz */
 };
 
-static void snd_hda_generate_beep(struct work_struct *work)
+/* generate or stop tone */
+static void generate_tone(struct hda_beep *beep, int tone)
 {
-	struct hda_beep *beep =
-		container_of(work, struct hda_beep, beep_work);
 	struct hda_codec *codec = beep->codec;
-	int tone;
 
-	if (!beep->enabled)
-		return;
-
-	tone = beep->tone;
 	if (tone && !beep->playing) {
 		snd_hda_power_up(codec);
+		if (beep->power_hook)
+			beep->power_hook(beep, true);
 		beep->playing = 1;
 	}
-	/* generate tone */
 	snd_hda_codec_write(codec, beep->nid, 0,
 			    AC_VERB_SET_BEEP_CONTROL, tone);
 	if (!tone && beep->playing) {
 		beep->playing = 0;
+		if (beep->power_hook)
+			beep->power_hook(beep, false);
 		snd_hda_power_down(codec);
 	}
 }
 
+static void snd_hda_generate_beep(struct work_struct *work)
+{
+	struct hda_beep *beep =
+		container_of(work, struct hda_beep, beep_work);
+
+	if (beep->enabled)
+		generate_tone(beep, beep->tone);
+}
+
 /* (non-standard) Linear beep tone calculation for IDT/STAC codecs 
  *
  * The tone frequency of beep generator on IDT/STAC codecs is
@@ -130,10 +136,7 @@ static void turn_off_beep(struct hda_beep *beep)
 	cancel_work_sync(&beep->beep_work);
 	if (beep->playing) {
 		/* turn off beep */
-		snd_hda_codec_write(beep->codec, beep->nid, 0,
-				    AC_VERB_SET_BEEP_CONTROL, 0);
-		beep->playing = 0;
-		snd_hda_power_down(beep->codec);
+		generate_tone(beep, 0);
 	}
 }
 
@@ -160,15 +163,15 @@ static int snd_hda_do_attach(struct hda_beep *beep)
 	input_dev->name = "HDA Digital PCBeep";
 	input_dev->phys = beep->phys;
 	input_dev->id.bustype = BUS_PCI;
+	input_dev->dev.parent = &codec->card->card_dev;
 
-	input_dev->id.vendor = codec->vendor_id >> 16;
-	input_dev->id.product = codec->vendor_id & 0xffff;
+	input_dev->id.vendor = codec->core.vendor_id >> 16;
+	input_dev->id.product = codec->core.vendor_id & 0xffff;
 	input_dev->id.version = 0x01;
 
 	input_dev->evbit[0] = BIT_MASK(EV_SND);
 	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
 	input_dev->event = snd_hda_beep_event;
-	input_dev->dev.parent = &codec->dev;
 	input_set_drvdata(input_dev, beep);
 
 	beep->dev = input_dev;
@@ -224,7 +227,7 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
 	if (beep == NULL)
 		return -ENOMEM;
 	snprintf(beep->phys, sizeof(beep->phys),
-		"card%d/codec#%d/beep0", codec->bus->card->number, codec->addr);
+		"card%d/codec#%d/beep0", codec->card->number, codec->addr);
 	/* enable linear scale */
 	snd_hda_codec_write_cache(codec, nid, 0,
 		AC_VERB_SET_DIGI_CONVERT_2, 0x01);

sound/pci/hda/hda_beep.h

@@ -40,6 +40,7 @@ struct hda_beep {
 	unsigned int playing:1;
 	struct work_struct beep_work; /* scheduled task for beep event */
 	struct mutex mutex;
+	void (*power_hook)(struct hda_beep *beep, bool on);
 };
 
 #ifdef CONFIG_SND_HDA_INPUT_BEEP

sound/pci/hda/hda_bind.c

@@ -0,0 +1,273 @@
+/*
+ * HD-audio codec driver binding
+ * Copyright (c) Takashi Iwai <tiwai@suse.de>
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <sound/core.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+
+/*
+ * find a matching codec preset
+ */
+static int hda_codec_match(struct hdac_device *dev, struct hdac_driver *drv)
+{
+	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
+	struct hda_codec_driver *driver =
+		container_of(drv, struct hda_codec_driver, core);
+	const struct hda_codec_preset *preset;
+	/* check probe_id instead of vendor_id if set */
+	u32 id = codec->probe_id ? codec->probe_id : codec->core.vendor_id;
+
+	for (preset = driver->preset; preset->id; preset++) {
+		u32 mask = preset->mask;
+
+		if (preset->afg && preset->afg != codec->core.afg)
+			continue;
+		if (preset->mfg && preset->mfg != codec->core.mfg)
+			continue;
+		if (!mask)
+			mask = ~0;
+		if (preset->id == (id & mask) &&
+		    (!preset->rev || preset->rev == codec->core.revision_id)) {
+			codec->preset = preset;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/* process an unsolicited event */
+static void hda_codec_unsol_event(struct hdac_device *dev, unsigned int ev)
+{
+	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
+
+	if (codec->patch_ops.unsol_event)
+		codec->patch_ops.unsol_event(codec, ev);
+}
+
+/* reset the codec name from the preset */
+static int codec_refresh_name(struct hda_codec *codec, const char *name)
+{
+	if (name) {
+		kfree(codec->core.chip_name);
+		codec->core.chip_name = kstrdup(name, GFP_KERNEL);
+	}
+	return codec->core.chip_name ? 0 : -ENOMEM;
+}
+
+static int hda_codec_driver_probe(struct device *dev)
+{
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+	struct module *owner = dev->driver->owner;
+	int err;
+
+	if (WARN_ON(!codec->preset))
+		return -EINVAL;
+
+	err = codec_refresh_name(codec, codec->preset->name);
+	if (err < 0)
+		goto error;
+	err = snd_hdac_regmap_init(&codec->core);
+	if (err < 0)
+		goto error;
+
+	if (!try_module_get(owner)) {
+		err = -EINVAL;
+		goto error;
+	}
+
+	err = codec->preset->patch(codec);
+	if (err < 0)
+		goto error_module;
+
+	err = snd_hda_codec_build_pcms(codec);
+	if (err < 0)
+		goto error_module;
+	err = snd_hda_codec_build_controls(codec);
+	if (err < 0)
+		goto error_module;
+	if (codec->card->registered) {
+		err = snd_card_register(codec->card);
+		if (err < 0)
+			goto error_module;
+		snd_hda_codec_register(codec);
+	}
+
+	codec->core.lazy_cache = true;
+	return 0;
+
+ error_module:
+	module_put(owner);
+
+ error:
+	snd_hda_codec_cleanup_for_unbind(codec);
+	return err;
+}
+
+static int hda_codec_driver_remove(struct device *dev)
+{
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+
+	if (codec->patch_ops.free)
+		codec->patch_ops.free(codec);
+	snd_hda_codec_cleanup_for_unbind(codec);
+	module_put(dev->driver->owner);
+	return 0;
+}
+
+static void hda_codec_driver_shutdown(struct device *dev)
+{
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+
+	if (!pm_runtime_suspended(dev) && codec->patch_ops.reboot_notify)
+		codec->patch_ops.reboot_notify(codec);
+}
+
+int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
+			       struct module *owner)
+{
+	drv->core.driver.name = name;
+	drv->core.driver.owner = owner;
+	drv->core.driver.bus = &snd_hda_bus_type;
+	drv->core.driver.probe = hda_codec_driver_probe;
+	drv->core.driver.remove = hda_codec_driver_remove;
+	drv->core.driver.shutdown = hda_codec_driver_shutdown;
+	drv->core.driver.pm = &hda_codec_driver_pm;
+	drv->core.type = HDA_DEV_LEGACY;
+	drv->core.match = hda_codec_match;
+	drv->core.unsol_event = hda_codec_unsol_event;
+	return driver_register(&drv->core.driver);
+}
+EXPORT_SYMBOL_GPL(__hda_codec_driver_register);
+
+void hda_codec_driver_unregister(struct hda_codec_driver *drv)
+{
+	driver_unregister(&drv->core.driver);
+}
+EXPORT_SYMBOL_GPL(hda_codec_driver_unregister);
+
+static inline bool codec_probed(struct hda_codec *codec)
+{
+	return device_attach(hda_codec_dev(codec)) > 0 && codec->preset;
+}
+
+/* try to auto-load and bind the codec module */
+static void codec_bind_module(struct hda_codec *codec)
+{
+#ifdef MODULE
+	request_module("snd-hda-codec-id:%08x", codec->core.vendor_id);
+	if (codec_probed(codec))
+		return;
+	request_module("snd-hda-codec-id:%04x*",
+		       (codec->core.vendor_id >> 16) & 0xffff);
+	if (codec_probed(codec))
+		return;
+#endif
+}
+
+#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
+/* if all audio out widgets are digital, let's assume the codec as a HDMI/DP */
+static bool is_likely_hdmi_codec(struct hda_codec *codec)
+{
+	hda_nid_t nid;
+
+	for_each_hda_codec_node(nid, codec) {
+		unsigned int wcaps = get_wcaps(codec, nid);
+		switch (get_wcaps_type(wcaps)) {
+		case AC_WID_AUD_IN:
+			return false; /* HDMI parser supports only HDMI out */
+		case AC_WID_AUD_OUT:
+			if (!(wcaps & AC_WCAP_DIGITAL))
+				return false;
+			break;
+		}
+	}
+	return true;
+}
+#else
+/* no HDMI codec parser support */
+#define is_likely_hdmi_codec(codec)	false
+#endif /* CONFIG_SND_HDA_CODEC_HDMI */
+
+static int codec_bind_generic(struct hda_codec *codec)
+{
+	if (codec->probe_id)
+		return -ENODEV;
+
+	if (is_likely_hdmi_codec(codec)) {
+		codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI;
+#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI)
+		request_module("snd-hda-codec-hdmi");
+#endif
+		if (codec_probed(codec))
+			return 0;
+	}
+
+	codec->probe_id = HDA_CODEC_ID_GENERIC;
+#if IS_MODULE(CONFIG_SND_HDA_GENERIC)
+	request_module("snd-hda-codec-generic");
+#endif
+	if (codec_probed(codec))
+		return 0;
+	return -ENODEV;
+}
+
+#if IS_ENABLED(CONFIG_SND_HDA_GENERIC)
+#define is_generic_config(codec) \
+	(codec->modelname && !strcmp(codec->modelname, "generic"))
+#else
+#define is_generic_config(codec)	0
+#endif
+
+/**
+ * snd_hda_codec_configure - (Re-)configure the HD-audio codec
+ * @codec: the HDA codec
+ *
+ * Start parsing of the given codec tree and (re-)initialize the whole
+ * patch instance.
+ *
+ * Returns 0 if successful or a negative error code.
+ */
+int snd_hda_codec_configure(struct hda_codec *codec)
+{
+	int err;
+
+	if (is_generic_config(codec))
+		codec->probe_id = HDA_CODEC_ID_GENERIC;
+	else
+		codec->probe_id = 0;
+
+	err = snd_hdac_device_register(&codec->core);
+	if (err < 0)
+		return err;
+
+	if (!codec->preset)
+		codec_bind_module(codec);
+	if (!codec->preset) {
+		err = codec_bind_generic(codec);
+		if (err < 0) {
+			codec_err(codec, "Unable to bind the codec\n");
+			goto error;
+		}
+	}
+
+	/* audio codec should override the mixer name */
+	if (codec->core.afg || !*codec->card->mixername)
+		snprintf(codec->card->mixername,
+			 sizeof(codec->card->mixername), "%s %s",
+			 codec->core.vendor_name, codec->core.chip_name);
+	return 0;
+
+ error:
+	snd_hdac_device_unregister(&codec->core);
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_hda_codec_configure);

sound/pci/hda/hda_codec.c

@@ -26,6 +26,8 @@
 #include <linux/mutex.h>
 #include <linux/module.h>
 #include <linux/async.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <sound/core.h>
 #include "hda_codec.h"
 #include <sound/asoundef.h>
@@ -37,97 +39,20 @@
 #include "hda_jack.h"
 #include <sound/hda_hwdep.h>
 
-#define CREATE_TRACE_POINTS
-#include "hda_trace.h"
-
-/*
- * vendor / preset table
- */
-
-struct hda_vendor_id {
-	unsigned int id;
-	const char *name;
-};
-
-/* codec vendor labels */
-static struct hda_vendor_id hda_vendor_ids[] = {
-	{ 0x1002, "ATI" },
-	{ 0x1013, "Cirrus Logic" },
-	{ 0x1057, "Motorola" },
-	{ 0x1095, "Silicon Image" },
-	{ 0x10de, "Nvidia" },
-	{ 0x10ec, "Realtek" },
-	{ 0x1102, "Creative" },
-	{ 0x1106, "VIA" },
-	{ 0x111d, "IDT" },
-	{ 0x11c1, "LSI" },
-	{ 0x11d4, "Analog Devices" },
-	{ 0x13f6, "C-Media" },
-	{ 0x14f1, "Conexant" },
-	{ 0x17e8, "Chrontel" },
-	{ 0x1854, "LG" },
-	{ 0x1aec, "Wolfson Microelectronics" },
-	{ 0x1af4, "QEMU" },
-	{ 0x434d, "C-Media" },
-	{ 0x8086, "Intel" },
-	{ 0x8384, "SigmaTel" },
-	{} /* terminator */
-};
-
-static DEFINE_MUTEX(preset_mutex);
-static LIST_HEAD(hda_preset_tables);
-
-/**
- * snd_hda_add_codec_preset - Add a codec preset to the chain
- * @preset: codec preset table to add
- */
-int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset)
-{
-	mutex_lock(&preset_mutex);
-	list_add_tail(&preset->list, &hda_preset_tables);
-	mutex_unlock(&preset_mutex);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_add_codec_preset);
-
-/**
- * snd_hda_delete_codec_preset - Delete a codec preset from the chain
- * @preset: codec preset table to delete
- */
-int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset)
-{
-	mutex_lock(&preset_mutex);
-	list_del(&preset->list);
-	mutex_unlock(&preset_mutex);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_delete_codec_preset);
-
 #ifdef CONFIG_PM
-#define codec_in_pm(codec)	((codec)->in_pm)
-static void hda_power_work(struct work_struct *work);
-static void hda_keep_power_on(struct hda_codec *codec);
-#define hda_codec_is_power_on(codec)	((codec)->power_on)
-
-static void hda_call_pm_notify(struct hda_codec *codec, bool power_up)
-{
-	struct hda_bus *bus = codec->bus;
-
-	if ((power_up && codec->pm_up_notified) ||
-	    (!power_up && !codec->pm_up_notified))
-		return;
-	if (bus->ops.pm_notify)
-		bus->ops.pm_notify(bus, power_up);
-	codec->pm_up_notified = power_up;
-}
-
+#define codec_in_pm(codec)	atomic_read(&(codec)->core.in_pm)
+#define hda_codec_is_power_on(codec) \
+	(!pm_runtime_suspended(hda_codec_dev(codec)))
 #else
 #define codec_in_pm(codec)	0
-static inline void hda_keep_power_on(struct hda_codec *codec) {}
 #define hda_codec_is_power_on(codec)	1
-#define hda_call_pm_notify(codec, state) {}
 #endif
 
+#define codec_has_epss(codec) \
+	((codec)->core.power_caps & AC_PWRST_EPSS)
+#define codec_has_clkstop(codec) \
+	((codec)->core.power_caps & AC_PWRST_CLKSTOP)
+
 /**
  * snd_hda_get_jack_location - Give a location string of the jack
  * @cfg: pin default config value
@@ -199,67 +124,32 @@ const char *snd_hda_get_jack_type(u32 cfg)
 EXPORT_SYMBOL_GPL(snd_hda_get_jack_type);
 
 /*
- * Compose a 32bit command word to be sent to the HD-audio controller
- */
-static inline unsigned int
-make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int flags,
-	       unsigned int verb, unsigned int parm)
-{
-	u32 val;
-
-	if ((codec->addr & ~0xf) || (nid & ~0x7f) ||
-	    (verb & ~0xfff) || (parm & ~0xffff)) {
-		codec_err(codec, "hda-codec: out of range cmd %x:%x:%x:%x\n",
-		       codec->addr, nid, verb, parm);
-		return ~0;
-	}
-
-	val = (u32)codec->addr << 28;
-	val |= (u32)nid << 20;
-	val |= verb << 8;
-	val |= parm;
-	return val;
-}
-
-/*
- * Send and receive a verb
+ * Send and receive a verb - passed to exec_verb override for hdac_device
  */
-static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
-			   int flags, unsigned int *res)
+static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
+			   unsigned int flags, unsigned int *res)
 {
+	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
 	struct hda_bus *bus = codec->bus;
 	int err;
 
 	if (cmd == ~0)
 		return -1;
 
-	if (res)
-		*res = -1;
  again:
-	snd_hda_power_up(codec);
-	mutex_lock(&bus->cmd_mutex);
+	snd_hda_power_up_pm(codec);
+	mutex_lock(&bus->core.cmd_mutex);
 	if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
 		bus->no_response_fallback = 1;
-	for (;;) {
-		trace_hda_send_cmd(codec, cmd);
-		err = bus->ops.command(bus, cmd);
-		if (err != -EAGAIN)
-			break;
-		/* process pending verbs */
-		bus->ops.get_response(bus, codec->addr);
-	}
-	if (!err && res) {
-		*res = bus->ops.get_response(bus, codec->addr);
-		trace_hda_get_response(codec, *res);
-	}
+	err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
+					      cmd, res);
 	bus->no_response_fallback = 0;
-	mutex_unlock(&bus->cmd_mutex);
-	snd_hda_power_down(codec);
-	if (!codec_in_pm(codec) && res && *res == -1 && bus->rirb_error) {
+	mutex_unlock(&bus->core.cmd_mutex);
+	snd_hda_power_down_pm(codec);
+	if (!codec_in_pm(codec) && res && err < 0 && bus->rirb_error) {
 		if (bus->response_reset) {
 			codec_dbg(codec,
 				  "resetting BUS due to fatal communication error\n");
-			trace_hda_bus_reset(bus);
 			bus->ops.bus_reset(bus);
 		}
 		goto again;
@@ -286,9 +176,9 @@ unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 				int flags,
 				unsigned int verb, unsigned int parm)
 {
-	unsigned cmd = make_codec_cmd(codec, nid, flags, verb, parm);
+	unsigned int cmd = snd_hdac_make_cmd(&codec->core, nid, verb, parm);
 	unsigned int res;
-	if (codec_exec_verb(codec, cmd, flags, &res))
+	if (snd_hdac_exec_verb(&codec->core, cmd, flags, &res))
 		return -1;
 	return res;
 }
@@ -309,10 +199,8 @@ EXPORT_SYMBOL_GPL(snd_hda_codec_read);
 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 			unsigned int verb, unsigned int parm)
 {
-	unsigned int cmd = make_codec_cmd(codec, nid, flags, verb, parm);
-	unsigned int res;
-	return codec_exec_verb(codec, cmd, flags,
-			       codec->bus->sync_write ? &res : NULL);
+	unsigned int cmd = snd_hdac_make_cmd(&codec->core, nid, verb, parm);
+	return snd_hdac_exec_verb(&codec->core, cmd, flags, NULL);
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_write);
 
@@ -331,30 +219,6 @@ void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 }
 EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
 
-/**
- * snd_hda_get_sub_nodes - get the range of sub nodes
- * @codec: the HDA codec
- * @nid: NID to parse
- * @start_id: the pointer to store the start NID
- *
- * Parse the NID and store the start NID of its sub-nodes.
- * Returns the number of sub-nodes.
- */
-int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
-			  hda_nid_t *start_id)
-{
-	unsigned int parm;
-
-	parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
-	if (parm == -1) {
-		*start_id = 0;
-		return 0;
-	}
-	*start_id = (parm >> 16) & 0x7fff;
-	return (int)(parm & 0x7fff);
-}
-EXPORT_SYMBOL_GPL(snd_hda_get_sub_nodes);
-
 /* connection list element */
 struct hda_conn_list {
 	struct list_head list;
@@ -495,128 +359,6 @@ int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_GPL(snd_hda_get_connections);
 
-/* return CONNLIST_LEN parameter of the given widget */
-static unsigned int get_num_conns(struct hda_codec *codec, hda_nid_t nid)
-{
-	unsigned int wcaps = get_wcaps(codec, nid);
-	unsigned int parm;
-
-	if (!(wcaps & AC_WCAP_CONN_LIST) &&
-	    get_wcaps_type(wcaps) != AC_WID_VOL_KNB)
-		return 0;
-
-	parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
-	if (parm == -1)
-		parm = 0;
-	return parm;
-}
-
-int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid)
-{
-	return snd_hda_get_raw_connections(codec, nid, NULL, 0);
-}
-
-/**
- * snd_hda_get_raw_connections - copy connection list without cache
- * @codec: the HDA codec
- * @nid: NID to parse
- * @conn_list: connection list array
- * @max_conns: max. number of connections to store
- *
- * Like snd_hda_get_connections(), copy the connection list but without
- * checking through the connection-list cache.
- * Currently called only from hda_proc.c, so not exported.
- */
-int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
-				hda_nid_t *conn_list, int max_conns)
-{
-	unsigned int parm;
-	int i, conn_len, conns;
-	unsigned int shift, num_elems, mask;
-	hda_nid_t prev_nid;
-	int null_count = 0;
-
-	parm = get_num_conns(codec, nid);
-	if (!parm)
-		return 0;
-
-	if (parm & AC_CLIST_LONG) {
-		/* long form */
-		shift = 16;
-		num_elems = 2;
-	} else {
-		/* short form */
-		shift = 8;
-		num_elems = 4;
-	}
-	conn_len = parm & AC_CLIST_LENGTH;
-	mask = (1 << (shift-1)) - 1;
-
-	if (!conn_len)
-		return 0; /* no connection */
-
-	if (conn_len == 1) {
-		/* single connection */
-		parm = snd_hda_codec_read(codec, nid, 0,
-					  AC_VERB_GET_CONNECT_LIST, 0);
-		if (parm == -1 && codec->bus->rirb_error)
-			return -EIO;
-		if (conn_list)
-			conn_list[0] = parm & mask;
-		return 1;
-	}
-
-	/* multi connection */
-	conns = 0;
-	prev_nid = 0;
-	for (i = 0; i < conn_len; i++) {
-		int range_val;
-		hda_nid_t val, n;
-
-		if (i % num_elems == 0) {
-			parm = snd_hda_codec_read(codec, nid, 0,
-						  AC_VERB_GET_CONNECT_LIST, i);
-			if (parm == -1 && codec->bus->rirb_error)
-				return -EIO;
-		}
-		range_val = !!(parm & (1 << (shift-1))); /* ranges */
-		val = parm & mask;
-		if (val == 0 && null_count++) {  /* no second chance */
-			codec_dbg(codec,
-				  "invalid CONNECT_LIST verb %x[%i]:%x\n",
-				    nid, i, parm);
-			return 0;
-		}
-		parm >>= shift;
-		if (range_val) {
-			/* ranges between the previous and this one */
-			if (!prev_nid || prev_nid >= val) {
-				codec_warn(codec,
-					   "invalid dep_range_val %x:%x\n",
-					   prev_nid, val);
-				continue;
-			}
-			for (n = prev_nid + 1; n <= val; n++) {
-				if (conn_list) {
-					if (conns >= max_conns)
-						return -ENOSPC;
-					conn_list[conns] = n;
-				}
-				conns++;
-			}
-		} else {
-			if (conn_list) {
-				if (conns >= max_conns)
-					return -ENOSPC;
-				conn_list[conns] = val;
-			}
-			conns++;
-		}
-		prev_nid = val;
-	}
-	return conns;
-}
-
 /**
  * snd_hda_override_conn_list - add/modify the connection-list to cache
  * @codec: the HDA codec
@@ -741,90 +483,6 @@ int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
 	return devices;
 }
 
-/**
- * snd_hda_queue_unsol_event - add an unsolicited event to queue
- * @bus: the BUS
- * @res: unsolicited event (lower 32bit of RIRB entry)
- * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
- *
- * Adds the given event to the queue.  The events are processed in
- * the workqueue asynchronously.  Call this function in the interrupt
- * hanlder when RIRB receives an unsolicited event.
- *
- * Returns 0 if successful, or a negative error code.
- */
-int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
-{
-	struct hda_bus_unsolicited *unsol;
-	unsigned int wp;
-
-	if (!bus || !bus->workq)
-		return 0;
-
-	trace_hda_unsol_event(bus, res, res_ex);
-	unsol = bus->unsol;
-	if (!unsol)
-		return 0;
-
-	wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
-	unsol->wp = wp;
-
-	wp <<= 1;
-	unsol->queue[wp] = res;
-	unsol->queue[wp + 1] = res_ex;
-
-	queue_work(bus->workq, &unsol->work);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_queue_unsol_event);
-
-/*
- * process queued unsolicited events
- */
-static void process_unsol_events(struct work_struct *work)
-{
-	struct hda_bus_unsolicited *unsol =
-		container_of(work, struct hda_bus_unsolicited, work);
-	struct hda_bus *bus = unsol->bus;
-	struct hda_codec *codec;
-	unsigned int rp, caddr, res;
-
-	while (unsol->rp != unsol->wp) {
-		rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
-		unsol->rp = rp;
-		rp <<= 1;
-		res = unsol->queue[rp];
-		caddr = unsol->queue[rp + 1];
-		if (!(caddr & (1 << 4))) /* no unsolicited event? */
-			continue;
-		codec = bus->caddr_tbl[caddr & 0x0f];
-		if (codec && codec->patch_ops.unsol_event)
-			codec->patch_ops.unsol_event(codec, res);
-	}
-}
-
-/*
- * initialize unsolicited queue
- */
-static int init_unsol_queue(struct hda_bus *bus)
-{
-	struct hda_bus_unsolicited *unsol;
-
-	if (bus->unsol) /* already initialized */
-		return 0;
-
-	unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
-	if (!unsol) {
-		dev_err(bus->card->dev, "can't allocate unsolicited queue\n");
-		return -ENOMEM;
-	}
-	INIT_WORK(&unsol->work, process_unsol_events);
-	unsol->bus = bus;
-	bus->unsol = unsol;
-	return 0;
-}
-
 /*
  * destructor
  */
@@ -832,16 +490,9 @@ static void snd_hda_bus_free(struct hda_bus *bus)
 {
 	if (!bus)
 		return;
-
-	WARN_ON(!list_empty(&bus->codec_list));
-	if (bus->workq)
-		flush_workqueue(bus->workq);
-	kfree(bus->unsol);
 	if (bus->ops.private_free)
 		bus->ops.private_free(bus);
-	if (bus->workq)
-		destroy_workqueue(bus->workq);
-
+	snd_hdac_bus_exit(&bus->core);
 	kfree(bus);
 }
 
@@ -858,17 +509,35 @@ static int snd_hda_bus_dev_disconnect(struct snd_device *device)
 	return 0;
 }
 
+/* hdac_bus_ops translations */
+static int _hda_bus_command(struct hdac_bus *_bus, unsigned int cmd)
+{
+	struct hda_bus *bus = container_of(_bus, struct hda_bus, core);
+	return bus->ops.command(bus, cmd);
+}
+
+static int _hda_bus_get_response(struct hdac_bus *_bus, unsigned int addr,
+				 unsigned int *res)
+{
+	struct hda_bus *bus = container_of(_bus, struct hda_bus, core);
+	*res = bus->ops.get_response(bus, addr);
+	return bus->rirb_error ? -EIO : 0;
+}
+
+static const struct hdac_bus_ops bus_ops = {
+	.command = _hda_bus_command,
+	.get_response = _hda_bus_get_response,
+};
+
 /**
  * snd_hda_bus_new - create a HDA bus
  * @card: the card entry
- * @temp: the template for hda_bus information
  * @busp: the pointer to store the created bus instance
  *
  * Returns 0 if successful, or a negative error code.
  */
 int snd_hda_bus_new(struct snd_card *card,
-			      const struct hda_bus_template *temp,
-			      struct hda_bus **busp)
+		    struct hda_bus **busp)
 {
 	struct hda_bus *bus;
 	int err;
@@ -877,40 +546,21 @@ int snd_hda_bus_new(struct snd_card *card,
 		.dev_free = snd_hda_bus_dev_free,
 	};
 
-	if (snd_BUG_ON(!temp))
-		return -EINVAL;
-	if (snd_BUG_ON(!temp->ops.command || !temp->ops.get_response))
-		return -EINVAL;
-
 	if (busp)
 		*busp = NULL;
 
 	bus = kzalloc(sizeof(*bus), GFP_KERNEL);
-	if (bus == NULL) {
-		dev_err(card->dev, "can't allocate struct hda_bus\n");
+	if (!bus)
 		return -ENOMEM;
+
+	err = snd_hdac_bus_init(&bus->core, card->dev, &bus_ops);
+	if (err < 0) {
+		kfree(bus);
+		return err;
 	}
 
 	bus->card = card;
-	bus->private_data = temp->private_data;
-	bus->pci = temp->pci;
-	bus->modelname = temp->modelname;
-	bus->power_save = temp->power_save;
-	bus->ops = temp->ops;
-
-	mutex_init(&bus->cmd_mutex);
 	mutex_init(&bus->prepare_mutex);
-	INIT_LIST_HEAD(&bus->codec_list);
-
-	snprintf(bus->workq_name, sizeof(bus->workq_name),
-		 "hd-audio%d", card->number);
-	bus->workq = create_singlethread_workqueue(bus->workq_name);
-	if (!bus->workq) {
-		dev_err(card->dev, "cannot create workqueue %s\n",
-			   bus->workq_name);
-		kfree(bus);
-		return -ENOMEM;
-	}
 
 	err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
 	if (err < 0) {
@@ -923,140 +573,6 @@ int snd_hda_bus_new(struct snd_card *card,
 }
 EXPORT_SYMBOL_GPL(snd_hda_bus_new);
 
-#if IS_ENABLED(CONFIG_SND_HDA_GENERIC)
-#define is_generic_config(codec) \
-	(codec->modelname && !strcmp(codec->modelname, "generic"))
-#else
-#define is_generic_config(codec)	0
-#endif
-
-#ifdef MODULE
-#define HDA_MODREQ_MAX_COUNT	2	/* two request_modules()'s */
-#else
-#define HDA_MODREQ_MAX_COUNT	0	/* all presets are statically linked */
-#endif
-
-/*
- * find a matching codec preset
- */
-static const struct hda_codec_preset *
-find_codec_preset(struct hda_codec *codec)
-{
-	struct hda_codec_preset_list *tbl;
-	const struct hda_codec_preset *preset;
-	unsigned int mod_requested = 0;
-
- again:
-	mutex_lock(&preset_mutex);
-	list_for_each_entry(tbl, &hda_preset_tables, list) {
-		if (!try_module_get(tbl->owner)) {
-			codec_err(codec, "cannot module_get\n");
-			continue;
-		}
-		for (preset = tbl->preset; preset->id; preset++) {
-			u32 mask = preset->mask;
-			if (preset->afg && preset->afg != codec->afg)
-				continue;
-			if (preset->mfg && preset->mfg != codec->mfg)
-				continue;
-			if (!mask)
-				mask = ~0;
-			if (preset->id == (codec->vendor_id & mask) &&
-			    (!preset->rev ||
-			     preset->rev == codec->revision_id)) {
-				mutex_unlock(&preset_mutex);
-				codec->owner = tbl->owner;
-				return preset;
-			}
-		}
-		module_put(tbl->owner);
-	}
-	mutex_unlock(&preset_mutex);
-
-	if (mod_requested < HDA_MODREQ_MAX_COUNT) {
-		if (!mod_requested)
-			request_module("snd-hda-codec-id:%08x",
-				       codec->vendor_id);
-		else
-			request_module("snd-hda-codec-id:%04x*",
-				       (codec->vendor_id >> 16) & 0xffff);
-		mod_requested++;
-		goto again;
-	}
-	return NULL;
-}
-
-/*
- * get_codec_name - store the codec name
- */
-static int get_codec_name(struct hda_codec *codec)
-{
-	const struct hda_vendor_id *c;
-	const char *vendor = NULL;
-	u16 vendor_id = codec->vendor_id >> 16;
-	char tmp[16];
-
-	if (codec->vendor_name)
-		goto get_chip_name;
-
-	for (c = hda_vendor_ids; c->id; c++) {
-		if (c->id == vendor_id) {
-			vendor = c->name;
-			break;
-		}
-	}
-	if (!vendor) {
-		sprintf(tmp, "Generic %04x", vendor_id);
-		vendor = tmp;
-	}
-	codec->vendor_name = kstrdup(vendor, GFP_KERNEL);
-	if (!codec->vendor_name)
-		return -ENOMEM;
-
- get_chip_name:
-	if (codec->chip_name)
-		return 0;
-
-	if (codec->preset && codec->preset->name)
-		codec->chip_name = kstrdup(codec->preset->name, GFP_KERNEL);
-	else {
-		sprintf(tmp, "ID %x", codec->vendor_id & 0xffff);
-		codec->chip_name = kstrdup(tmp, GFP_KERNEL);
-	}
-	if (!codec->chip_name)
-		return -ENOMEM;
-	return 0;
-}
-
-/*
- * look for an AFG and MFG nodes
- */
-static void setup_fg_nodes(struct hda_codec *codec)
-{
-	int i, total_nodes, function_id;
-	hda_nid_t nid;
-
-	total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
-	for (i = 0; i < total_nodes; i++, nid++) {
-		function_id = snd_hda_param_read(codec, nid,
-						AC_PAR_FUNCTION_TYPE);
-		switch (function_id & 0xff) {
-		case AC_GRP_AUDIO_FUNCTION:
-			codec->afg = nid;
-			codec->afg_function_id = function_id & 0xff;
-			codec->afg_unsol = (function_id >> 8) & 1;
-			break;
-		case AC_GRP_MODEM_FUNCTION:
-			codec->mfg = nid;
-			codec->mfg_function_id = function_id & 0xff;
-			codec->mfg_unsol = (function_id >> 8) & 1;
-			break;
-		default:
-			break;
-		}
-	}
-}
-
 /*
  * read widget caps for each widget and store in cache
  */
@@ -1065,25 +581,22 @@ static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 	int i;
 	hda_nid_t nid;
 
-	codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
-						 &codec->start_nid);
-	codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
+	codec->wcaps = kmalloc(codec->core.num_nodes * 4, GFP_KERNEL);
 	if (!codec->wcaps)
 		return -ENOMEM;
-	nid = codec->start_nid;
-	for (i = 0; i < codec->num_nodes; i++, nid++)
-		codec->wcaps[i] = snd_hda_param_read(codec, nid,
-						     AC_PAR_AUDIO_WIDGET_CAP);
+	nid = codec->core.start_nid;
+	for (i = 0; i < codec->core.num_nodes; i++, nid++)
+		codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
+					nid, AC_PAR_AUDIO_WIDGET_CAP);
 	return 0;
 }
 
 /* read all pin default configurations and save codec->init_pins */
 static int read_pin_defaults(struct hda_codec *codec)
 {
-	int i;
-	hda_nid_t nid = codec->start_nid;
+	hda_nid_t nid;
 
-	for (i = 0; i < codec->num_nodes; i++, nid++) {
+	for_each_hda_codec_node(nid, codec) {
 		struct hda_pincfg *pin;
 		unsigned int wcaps = get_wcaps(codec, nid);
 		unsigned int wid_type = get_wcaps_type(wcaps);
@@ -1290,14 +803,10 @@ static void hda_jackpoll_work(struct work_struct *work)
 	if (!codec->jackpoll_interval)
 		return;
 
-	queue_delayed_work(codec->bus->workq, &codec->jackpoll_work,
-			   codec->jackpoll_interval);
+	schedule_delayed_work(&codec->jackpoll_work,
+			      codec->jackpoll_interval);
 }
 
-static void init_hda_cache(struct hda_cache_rec *cache,
-			   unsigned int record_size);
-static void free_hda_cache(struct hda_cache_rec *cache);
-
 /* release all pincfg lists */
 static void free_init_pincfgs(struct hda_codec *codec)
 {
@@ -1339,70 +848,117 @@ get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
 }
 
 /*
- * Dynamic symbol binding for the codec parsers
+ * PCM device
  */
+static void release_pcm(struct kref *kref)
+{
+	struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
+
+	if (pcm->pcm)
+		snd_device_free(pcm->codec->card, pcm->pcm);
+	clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
+	kfree(pcm->name);
+	kfree(pcm);
+}
 
-#define load_parser(codec, sym) \
-	((codec)->parser = (int (*)(struct hda_codec *))symbol_request(sym))
+void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
+{
+	kref_put(&pcm->kref, release_pcm);
+}
+EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
 
-static void unload_parser(struct hda_codec *codec)
+struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
+				      const char *fmt, ...)
 {
-	if (codec->parser)
-		symbol_put_addr(codec->parser);
-	codec->parser = NULL;
+	struct hda_pcm *pcm;
+	va_list args;
+
+	va_start(args, fmt);
+	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
+	if (!pcm)
+		return NULL;
+
+	pcm->codec = codec;
+	kref_init(&pcm->kref);
+	pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
+	if (!pcm->name) {
+		kfree(pcm);
+		return NULL;
+	}
+
+	list_add_tail(&pcm->list, &codec->pcm_list_head);
+	return pcm;
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
 
 /*
  * codec destructor
  */
-static void snd_hda_codec_free(struct hda_codec *codec)
+static void codec_release_pcms(struct hda_codec *codec)
 {
-	if (!codec)
-		return;
+	struct hda_pcm *pcm, *n;
+
+	list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
+		list_del_init(&pcm->list);
+		if (pcm->pcm)
+			snd_device_disconnect(codec->card, pcm->pcm);
+		snd_hda_codec_pcm_put(pcm);
+	}
+}
+
+void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
+{
+	if (codec->registered) {
+		/* pm_runtime_put() is called in snd_hdac_device_exit() */
+		pm_runtime_get_noresume(hda_codec_dev(codec));
+		pm_runtime_disable(hda_codec_dev(codec));
+		codec->registered = 0;
+	}
+
 	cancel_delayed_work_sync(&codec->jackpoll_work);
+	if (!codec->in_freeing)
+		snd_hda_ctls_clear(codec);
+	codec_release_pcms(codec);
+	snd_hda_detach_beep_device(codec);
+	memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
 	snd_hda_jack_tbl_clear(codec);
-	free_init_pincfgs(codec);
-#ifdef CONFIG_PM
-	cancel_delayed_work(&codec->power_work);
-	flush_workqueue(codec->bus->workq);
-#endif
-	list_del(&codec->list);
-	snd_array_free(&codec->mixers);
-	snd_array_free(&codec->nids);
+	codec->proc_widget_hook = NULL;
+	codec->spec = NULL;
+
+	/* free only driver_pins so that init_pins + user_pins are restored */
+	snd_array_free(&codec->driver_pins);
 	snd_array_free(&codec->cvt_setups);
 	snd_array_free(&codec->spdif_out);
+	snd_array_free(&codec->verbs);
+	codec->preset = NULL;
+	codec->slave_dig_outs = NULL;
+	codec->spdif_status_reset = 0;
+	snd_array_free(&codec->mixers);
+	snd_array_free(&codec->nids);
 	remove_conn_list(codec);
-	codec->bus->caddr_tbl[codec->addr] = NULL;
-	if (codec->patch_ops.free)
-		codec->patch_ops.free(codec);
-	hda_call_pm_notify(codec, false); /* cancel leftover refcounts */
-	snd_hda_sysfs_clear(codec);
-	unload_parser(codec);
-	module_put(codec->owner);
-	free_hda_cache(&codec->amp_cache);
-	free_hda_cache(&codec->cmd_cache);
-	kfree(codec->vendor_name);
-	kfree(codec->chip_name);
-	kfree(codec->modelname);
-	kfree(codec->wcaps);
-	codec->bus->num_codecs--;
-	put_device(&codec->dev);
+	snd_hdac_regmap_exit(&codec->core);
 }
 
-static bool snd_hda_codec_get_supported_ps(struct hda_codec *codec,
-				hda_nid_t fg, unsigned int power_state);
-
 static unsigned int hda_set_power_state(struct hda_codec *codec,
 				unsigned int power_state);
 
-static int snd_hda_codec_dev_register(struct snd_device *device)
+/* also called from hda_bind.c */
+void snd_hda_codec_register(struct hda_codec *codec)
 {
-	struct hda_codec *codec = device->device_data;
-	int err = device_add(&codec->dev);
+	if (codec->registered)
+		return;
+	if (device_is_registered(hda_codec_dev(codec))) {
+		snd_hda_register_beep_device(codec);
+		pm_runtime_enable(hda_codec_dev(codec));
+		/* it was powered up in snd_hda_codec_new(), now all done */
+		snd_hda_power_down(codec);
+		codec->registered = 1;
+	}
+}
 
-	if (err < 0)
-		return err;
-	snd_hda_register_beep_device(codec);
+static int snd_hda_codec_dev_register(struct snd_device *device)
+{
+	snd_hda_codec_register(device->device_data);
 	return 0;
 }
 
@@ -1411,20 +967,29 @@ static int snd_hda_codec_dev_disconnect(struct snd_device *device)
 	struct hda_codec *codec = device->device_data;
 
 	snd_hda_detach_beep_device(codec);
-	device_del(&codec->dev);
 	return 0;
 }
 
 static int snd_hda_codec_dev_free(struct snd_device *device)
 {
-	snd_hda_codec_free(device->device_data);
+	struct hda_codec *codec = device->device_data;
+
+	codec->in_freeing = 1;
+	snd_hdac_device_unregister(&codec->core);
+	put_device(hda_codec_dev(codec));
 	return 0;
 }
 
-/* just free the container */
 static void snd_hda_codec_dev_release(struct device *dev)
 {
-	kfree(container_of(dev, struct hda_codec, dev));
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+
+	free_init_pincfgs(codec);
+	snd_hdac_device_exit(&codec->core);
+	snd_hda_sysfs_clear(codec);
+	kfree(codec->modelname);
+	kfree(codec->wcaps);
+	kfree(codec);
 }
 
 /**
@@ -1435,9 +1000,8 @@ static void snd_hda_codec_dev_release(struct device *dev)
  *
  * Returns 0 if successful, or a negative error code.
  */
-int snd_hda_codec_new(struct hda_bus *bus,
-				unsigned int codec_addr,
-				struct hda_codec **codecp)
+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;
 	char component[31];
@@ -1454,35 +1018,27 @@ int snd_hda_codec_new(struct hda_bus *bus,
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 		return -EINVAL;
 
-	if (bus->caddr_tbl[codec_addr]) {
-		dev_err(bus->card->dev,
-			"address 0x%x is already occupied\n",
-			codec_addr);
-		return -EBUSY;
-	}
-
 	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
-	if (codec == NULL) {
-		dev_err(bus->card->dev, "can't allocate struct hda_codec\n");
+	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;
 	}
 
-	device_initialize(&codec->dev);
-	codec->dev.parent = &bus->card->card_dev;
-	codec->dev.class = sound_class;
-	codec->dev.release = snd_hda_codec_dev_release;
-	codec->dev.groups = snd_hda_dev_attr_groups;
-	dev_set_name(&codec->dev, "hdaudioC%dD%d", bus->card->number,
-		     codec_addr);
-	dev_set_drvdata(&codec->dev, codec); /* for sysfs */
+	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;
+	codec->card = card;
 	codec->addr = codec_addr;
 	mutex_init(&codec->spdif_mutex);
 	mutex_init(&codec->control_mutex);
-	mutex_init(&codec->hash_mutex);
-	init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
-	init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
 	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
 	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
 	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
@@ -1492,19 +1048,14 @@ int snd_hda_codec_new(struct hda_bus *bus,
 	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
 	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
 	INIT_LIST_HEAD(&codec->conn_list);
+	INIT_LIST_HEAD(&codec->pcm_list_head);
 
 	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
 	codec->depop_delay = -1;
 	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
 
 #ifdef CONFIG_PM
-	spin_lock_init(&codec->power_lock);
-	INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
-	/* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
-	 * the caller has to power down appropriatley after initialization
-	 * phase.
-	 */
-	hda_keep_power_on(codec);
+	codec->power_jiffies = jiffies;
 #endif
 
 	snd_hda_sysfs_init(codec);
@@ -1517,59 +1068,14 @@ int snd_hda_codec_new(struct hda_bus *bus,
 		}
 	}
 
-	list_add_tail(&codec->list, &bus->codec_list);
-	bus->num_codecs++;
-
-	bus->caddr_tbl[codec_addr] = codec;
-
-	codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
-					      AC_PAR_VENDOR_ID);
-	if (codec->vendor_id == -1)
-		/* read again, hopefully the access method was corrected
-		 * in the last read...
-		 */
-		codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
-						      AC_PAR_VENDOR_ID);
-	codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
-						 AC_PAR_SUBSYSTEM_ID);
-	codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
-						AC_PAR_REV_ID);
-
-	setup_fg_nodes(codec);
-	if (!codec->afg && !codec->mfg) {
-		dev_err(bus->card->dev, "no AFG or MFG node found\n");
-		err = -ENODEV;
-		goto error;
-	}
-
-	fg = codec->afg ? codec->afg : codec->mfg;
+	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
 	err = read_widget_caps(codec, fg);
-	if (err < 0) {
-		dev_err(bus->card->dev, "cannot malloc\n");
+	if (err < 0)
 		goto error;
-	}
 	err = read_pin_defaults(codec);
 	if (err < 0)
 		goto error;
 
-	if (!codec->subsystem_id) {
-		codec->subsystem_id =
-			snd_hda_codec_read(codec, fg, 0,
-					   AC_VERB_GET_SUBSYSTEM_ID, 0);
-	}
-
-#ifdef CONFIG_PM
-	codec->d3_stop_clk = snd_hda_codec_get_supported_ps(codec, fg,
-					AC_PWRST_CLKSTOP);
-#endif
-	codec->epss = snd_hda_codec_get_supported_ps(codec, fg,
-					AC_PWRST_EPSS);
-#ifdef CONFIG_PM
-	if (!codec->d3_stop_clk || !codec->epss)
-		bus->power_keep_link_on = 1;
-#endif
-
-
 	/* power-up all before initialization */
 	hda_set_power_state(codec, AC_PWRST_D0);
 
@@ -1577,11 +1083,11 @@ int snd_hda_codec_new(struct hda_bus *bus,
 
 	snd_hda_create_hwdep(codec);
 
-	sprintf(component, "HDA:%08x,%08x,%08x", codec->vendor_id,
-		codec->subsystem_id, codec->revision_id);
-	snd_component_add(codec->bus->card, component);
+	sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
+		codec->core.subsystem_id, codec->core.revision_id);
+	snd_component_add(card, component);
 
-	err = snd_device_new(bus->card, SNDRV_DEV_CODEC, codec, &dev_ops);
+	err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
 	if (err < 0)
 		goto error;
 
@@ -1590,7 +1096,7 @@ int snd_hda_codec_new(struct hda_bus *bus,
 	return 0;
 
  error:
-	snd_hda_codec_free(codec);
+	put_device(hda_codec_dev(codec));
 	return err;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
@@ -1607,16 +1113,18 @@ int snd_hda_codec_update_widgets(struct hda_codec *codec)
 	hda_nid_t fg;
 	int err;
 
+	err = snd_hdac_refresh_widgets(&codec->core);
+	if (err < 0)
+		return err;
+
 	/* Assume the function group node does not change,
 	 * only the widget nodes may change.
 	 */
 	kfree(codec->wcaps);
-	fg = codec->afg ? codec->afg : codec->mfg;
+	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
 	err = read_widget_caps(codec, fg);
-	if (err < 0) {
-		codec_err(codec, "cannot malloc\n");
+	if (err < 0)
 		return err;
-	}
 
 	snd_array_free(&codec->init_pins);
 	err = read_pin_defaults(codec);
@@ -1625,98 +1133,6 @@ int snd_hda_codec_update_widgets(struct hda_codec *codec)
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
 
-
-#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
-/* if all audio out widgets are digital, let's assume the codec as a HDMI/DP */
-static bool is_likely_hdmi_codec(struct hda_codec *codec)
-{
-	hda_nid_t nid = codec->start_nid;
-	int i;
-
-	for (i = 0; i < codec->num_nodes; i++, nid++) {
-		unsigned int wcaps = get_wcaps(codec, nid);
-		switch (get_wcaps_type(wcaps)) {
-		case AC_WID_AUD_IN:
-			return false; /* HDMI parser supports only HDMI out */
-		case AC_WID_AUD_OUT:
-			if (!(wcaps & AC_WCAP_DIGITAL))
-				return false;
-			break;
-		}
-	}
-	return true;
-}
-#else
-/* no HDMI codec parser support */
-#define is_likely_hdmi_codec(codec)	false
-#endif /* CONFIG_SND_HDA_CODEC_HDMI */
-
-/**
- * snd_hda_codec_configure - (Re-)configure the HD-audio codec
- * @codec: the HDA codec
- *
- * Start parsing of the given codec tree and (re-)initialize the whole
- * patch instance.
- *
- * Returns 0 if successful or a negative error code.
- */
-int snd_hda_codec_configure(struct hda_codec *codec)
-{
-	int (*patch)(struct hda_codec *) = NULL;
-	int err;
-
-	codec->preset = find_codec_preset(codec);
-	if (!codec->vendor_name || !codec->chip_name) {
-		err = get_codec_name(codec);
-		if (err < 0)
-			return err;
-	}
-
-	if (!is_generic_config(codec) && codec->preset)
-		patch = codec->preset->patch;
-	if (!patch) {
-		unload_parser(codec); /* to be sure */
-		if (is_likely_hdmi_codec(codec)) {
-#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI)
-			patch = load_parser(codec, snd_hda_parse_hdmi_codec);
-#elif IS_BUILTIN(CONFIG_SND_HDA_CODEC_HDMI)
-			patch = snd_hda_parse_hdmi_codec;
-#endif
-		}
-		if (!patch) {
-#if IS_MODULE(CONFIG_SND_HDA_GENERIC)
-			patch = load_parser(codec, snd_hda_parse_generic_codec);
-#elif IS_BUILTIN(CONFIG_SND_HDA_GENERIC)
-			patch = snd_hda_parse_generic_codec;
-#endif
-		}
-		if (!patch) {
-			codec_err(codec, "No codec parser is available\n");
-			return -ENODEV;
-		}
-	}
-
-	err = patch(codec);
-	if (err < 0) {
-		unload_parser(codec);
-		return err;
-	}
-
-	if (codec->patch_ops.unsol_event) {
-		err = init_unsol_queue(codec->bus);
-		if (err < 0)
-			return err;
-	}
-
-	/* audio codec should override the mixer name */
-	if (codec->afg || !*codec->bus->card->mixername)
-		snprintf(codec->bus->card->mixername,
-			 sizeof(codec->bus->card->mixername),
-			 "%s %s", codec->vendor_name, codec->chip_name);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_configure);
-
 /* update the stream-id if changed */
 static void update_pcm_stream_id(struct hda_codec *codec,
 				 struct hda_cvt_setup *p, hda_nid_t nid,
@@ -1782,6 +1198,8 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 	if (!p)
 		return;
 
+	if (codec->patch_ops.stream_pm)
+		codec->patch_ops.stream_pm(codec, nid, true);
 	if (codec->pcm_format_first)
 		update_pcm_format(codec, p, nid, format);
 	update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
@@ -1793,7 +1211,7 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 
 	/* make other inactive cvts with the same stream-tag dirty */
 	type = get_wcaps_type(get_wcaps(codec, nid));
-	list_for_each_entry(c, &codec->bus->codec_list, list) {
+	list_for_each_codec(c, codec->bus) {
 		for (i = 0; i < c->cvt_setups.used; i++) {
 			p = snd_array_elem(&c->cvt_setups, i);
 			if (!p->active && p->stream_tag == stream_tag &&
@@ -1850,6 +1268,8 @@ static void really_cleanup_stream(struct hda_codec *codec,
 );
 	memset(q, 0, sizeof(*q));
 	q->nid = nid;
+	if (codec->patch_ops.stream_pm)
+		codec->patch_ops.stream_pm(codec, nid, false);
 }
 
 /* clean up the all conflicting obsolete streams */
@@ -1858,154 +1278,33 @@ static void purify_inactive_streams(struct hda_codec *codec)
 	struct hda_codec *c;
 	int i;
 
-	list_for_each_entry(c, &codec->bus->codec_list, list) {
+	list_for_each_codec(c, codec->bus) {
 		for (i = 0; i < c->cvt_setups.used; i++) {
 			struct hda_cvt_setup *p;
 			p = snd_array_elem(&c->cvt_setups, i);
-			if (p->dirty)
-				really_cleanup_stream(c, p);
-		}
-	}
-}
-
-#ifdef CONFIG_PM
-/* clean up all streams; called from suspend */
-static void hda_cleanup_all_streams(struct hda_codec *codec)
-{
-	int i;
-
-	for (i = 0; i < codec->cvt_setups.used; i++) {
-		struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
-		if (p->stream_tag)
-			really_cleanup_stream(codec, p);
-	}
-}
-#endif
-
-/*
- * amp access functions
- */
-
-/* FIXME: more better hash key? */
-#define HDA_HASH_KEY(nid, dir, idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
-#define HDA_HASH_PINCAP_KEY(nid) (u32)((nid) + (0x02 << 24))
-#define HDA_HASH_PARPCM_KEY(nid) (u32)((nid) + (0x03 << 24))
-#define HDA_HASH_PARSTR_KEY(nid) (u32)((nid) + (0x04 << 24))
-#define INFO_AMP_CAPS	(1<<0)
-#define INFO_AMP_VOL(ch)	(1 << (1 + (ch)))
-
-/* initialize the hash table */
-static void init_hda_cache(struct hda_cache_rec *cache,
-				     unsigned int record_size)
-{
-	memset(cache, 0, sizeof(*cache));
-	memset(cache->hash, 0xff, sizeof(cache->hash));
-	snd_array_init(&cache->buf, record_size, 64);
-}
-
-static void free_hda_cache(struct hda_cache_rec *cache)
-{
-	snd_array_free(&cache->buf);
-}
-
-/* query the hash.  allocate an entry if not found. */
-static struct hda_cache_head  *get_hash(struct hda_cache_rec *cache, u32 key)
-{
-	u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
-	u16 cur = cache->hash[idx];
-	struct hda_cache_head *info;
-
-	while (cur != 0xffff) {
-		info = snd_array_elem(&cache->buf, cur);
-		if (info->key == key)
-			return info;
-		cur = info->next;
-	}
-	return NULL;
-}
-
-/* query the hash.  allocate an entry if not found. */
-static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
-					      u32 key)
-{
-	struct hda_cache_head *info = get_hash(cache, key);
-	if (!info) {
-		u16 idx, cur;
-		/* add a new hash entry */
-		info = snd_array_new(&cache->buf);
-		if (!info)
-			return NULL;
-		cur = snd_array_index(&cache->buf, info);
-		info->key = key;
-		info->val = 0;
-		info->dirty = 0;
-		idx = key % (u16)ARRAY_SIZE(cache->hash);
-		info->next = cache->hash[idx];
-		cache->hash[idx] = cur;
-	}
-	return info;
-}
-
-/* query and allocate an amp hash entry */
-static inline struct hda_amp_info *
-get_alloc_amp_hash(struct hda_codec *codec, u32 key)
-{
-	return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
-}
-
-/* overwrite the value with the key in the caps hash */
-static int write_caps_hash(struct hda_codec *codec, u32 key, unsigned int val)
-{
-	struct hda_amp_info *info;
-
-	mutex_lock(&codec->hash_mutex);
-	info = get_alloc_amp_hash(codec, key);
-	if (!info) {
-		mutex_unlock(&codec->hash_mutex);
-		return -EINVAL;
+			if (p->dirty)
+				really_cleanup_stream(c, p);
+		}
 	}
-	info->amp_caps = val;
-	info->head.val |= INFO_AMP_CAPS;
-	mutex_unlock(&codec->hash_mutex);
-	return 0;
 }
 
-/* query the value from the caps hash; if not found, fetch the current
- * value from the given function and store in the hash
- */
-static unsigned int
-query_caps_hash(struct hda_codec *codec, hda_nid_t nid, int dir, u32 key,
-		unsigned int (*func)(struct hda_codec *, hda_nid_t, int))
+#ifdef CONFIG_PM
+/* clean up all streams; called from suspend */
+static void hda_cleanup_all_streams(struct hda_codec *codec)
 {
-	struct hda_amp_info *info;
-	unsigned int val;
+	int i;
 
-	mutex_lock(&codec->hash_mutex);
-	info = get_alloc_amp_hash(codec, key);
-	if (!info) {
-		mutex_unlock(&codec->hash_mutex);
-		return 0;
-	}
-	if (!(info->head.val & INFO_AMP_CAPS)) {
-		mutex_unlock(&codec->hash_mutex); /* for reentrance */
-		val = func(codec, nid, dir);
-		write_caps_hash(codec, key, val);
-	} else {
-		val = info->amp_caps;
-		mutex_unlock(&codec->hash_mutex);
+	for (i = 0; i < codec->cvt_setups.used; i++) {
+		struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
+		if (p->stream_tag)
+			really_cleanup_stream(codec, p);
 	}
-	return val;
 }
+#endif
 
-static unsigned int read_amp_cap(struct hda_codec *codec, hda_nid_t nid,
-				 int direction)
-{
-	if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
-		nid = codec->afg;
-	return snd_hda_param_read(codec, nid,
-				  direction == HDA_OUTPUT ?
-				  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
-}
+/*
+ * amp access functions
+ */
 
 /**
  * query_amp_caps - query AMP capabilities
@@ -2021,9 +1320,11 @@ static unsigned int read_amp_cap(struct hda_codec *codec, hda_nid_t nid,
  */
 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 {
-	return query_caps_hash(codec, nid, direction,
-			       HDA_HASH_KEY(nid, direction, 0),
-			       read_amp_cap);
+	if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
+		nid = codec->core.afg;
+	return snd_hda_param_read(codec, nid,
+				  direction == HDA_OUTPUT ?
+				  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 }
 EXPORT_SYMBOL_GPL(query_amp_caps);
 
@@ -2064,183 +1365,14 @@ EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 			      unsigned int caps)
 {
-	return write_caps_hash(codec, HDA_HASH_KEY(nid, dir, 0), caps);
-}
-EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
-
-static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid,
-				 int dir)
-{
-	return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
-}
-
-/**
- * snd_hda_query_pin_caps - Query PIN capabilities
- * @codec: the HD-auio codec
- * @nid: the NID to query
- *
- * Query PIN capabilities for the given widget.
- * Returns the obtained capability bits.
- *
- * When cap bits have been already read, this doesn't read again but
- * returns the cached value.
- */
-u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
-{
-	return query_caps_hash(codec, nid, 0, HDA_HASH_PINCAP_KEY(nid),
-			       read_pin_cap);
-}
-EXPORT_SYMBOL_GPL(snd_hda_query_pin_caps);
-
-/**
- * snd_hda_override_pin_caps - Override the pin capabilities
- * @codec: the CODEC
- * @nid: the NID to override
- * @caps: the capability bits to set
- *
- * Override the cached PIN capabilitiy bits value by the given one.
- *
- * Returns zero if successful or a negative error code.
- */
-int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
-			      unsigned int caps)
-{
-	return write_caps_hash(codec, HDA_HASH_PINCAP_KEY(nid), caps);
-}
-EXPORT_SYMBOL_GPL(snd_hda_override_pin_caps);
-
-/* read or sync the hash value with the current value;
- * call within hash_mutex
- */
-static struct hda_amp_info *
-update_amp_hash(struct hda_codec *codec, hda_nid_t nid, int ch,
-		int direction, int index, bool init_only)
-{
-	struct hda_amp_info *info;
-	unsigned int parm, val = 0;
-	bool val_read = false;
-
- retry:
-	info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
-	if (!info)
-		return NULL;
-	if (!(info->head.val & INFO_AMP_VOL(ch))) {
-		if (!val_read) {
-			mutex_unlock(&codec->hash_mutex);
-			parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
-			parm |= direction == HDA_OUTPUT ?
-				AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
-			parm |= index;
-			val = snd_hda_codec_read(codec, nid, 0,
-				 AC_VERB_GET_AMP_GAIN_MUTE, parm);
-			val &= 0xff;
-			val_read = true;
-			mutex_lock(&codec->hash_mutex);
-			goto retry;
-		}
-		info->vol[ch] = val;
-		info->head.val |= INFO_AMP_VOL(ch);
-	} else if (init_only)
-		return NULL;
-	return info;
-}
-
-/*
- * write the current volume in info to the h/w
- */
-static void put_vol_mute(struct hda_codec *codec, unsigned int amp_caps,
-			 hda_nid_t nid, int ch, int direction, int index,
-			 int val)
-{
-	u32 parm;
-
-	parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
-	parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
-	parm |= index << AC_AMP_SET_INDEX_SHIFT;
-	if ((val & HDA_AMP_MUTE) && !(amp_caps & AC_AMPCAP_MUTE) &&
-	    (amp_caps & AC_AMPCAP_MIN_MUTE))
-		; /* set the zero value as a fake mute */
-	else
-		parm |= val;
-	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
-}
-
-/**
- * snd_hda_codec_amp_read - Read AMP value
- * @codec: HD-audio codec
- * @nid: NID to read the AMP value
- * @ch: channel (left=0 or right=1)
- * @direction: #HDA_INPUT or #HDA_OUTPUT
- * @index: the index value (only for input direction)
- *
- * Read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
- */
-int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
-			   int direction, int index)
-{
-	struct hda_amp_info *info;
-	unsigned int val = 0;
-
-	mutex_lock(&codec->hash_mutex);
-	info = update_amp_hash(codec, nid, ch, direction, index, false);
-	if (info)
-		val = info->vol[ch];
-	mutex_unlock(&codec->hash_mutex);
-	return val;
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_amp_read);
-
-static int codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
-			    int direction, int idx, int mask, int val,
-			    bool init_only)
-{
-	struct hda_amp_info *info;
-	unsigned int caps;
-	unsigned int cache_only;
-
-	if (snd_BUG_ON(mask & ~0xff))
-		mask &= 0xff;
-	val &= mask;
-
-	mutex_lock(&codec->hash_mutex);
-	info = update_amp_hash(codec, nid, ch, direction, idx, init_only);
-	if (!info) {
-		mutex_unlock(&codec->hash_mutex);
-		return 0;
-	}
-	val |= info->vol[ch] & ~mask;
-	if (info->vol[ch] == val) {
-		mutex_unlock(&codec->hash_mutex);
-		return 0;
-	}
-	info->vol[ch] = val;
-	cache_only = info->head.dirty = codec->cached_write;
-	caps = info->amp_caps;
-	mutex_unlock(&codec->hash_mutex);
-	if (!cache_only)
-		put_vol_mute(codec, caps, nid, ch, direction, idx, val);
-	return 1;
-}
+	unsigned int parm;
 
-/**
- * snd_hda_codec_amp_update - update the AMP value
- * @codec: HD-audio codec
- * @nid: NID to read the AMP value
- * @ch: channel (left=0 or right=1)
- * @direction: #HDA_INPUT or #HDA_OUTPUT
- * @idx: the index value (only for input direction)
- * @mask: bit mask to set
- * @val: the bits value to set
- *
- * Update the AMP value with a bit mask.
- * Returns 0 if the value is unchanged, 1 if changed.
- */
-int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
-			     int direction, int idx, int mask, int val)
-{
-	return codec_amp_update(codec, nid, ch, direction, idx, mask, val, false);
+	snd_hda_override_wcaps(codec, nid,
+			       get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
+	parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
+	return snd_hdac_override_parm(&codec->core, nid, parm, caps);
 }
-EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
+EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
 
 /**
  * snd_hda_codec_amp_stereo - update the AMP stereo values
@@ -2285,7 +1417,16 @@ EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
 			   int dir, int idx, int mask, int val)
 {
-	return codec_amp_update(codec, nid, ch, dir, idx, mask, val, true);
+	int orig;
+
+	if (!codec->core.regmap)
+		return -EINVAL;
+	regcache_cache_only(codec->core.regmap, true);
+	orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
+	regcache_cache_only(codec->core.regmap, false);
+	if (orig >= 0)
+		return 0;
+	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
 
@@ -2314,49 +1455,6 @@ int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
 
-/**
- * snd_hda_codec_resume_amp - Resume all AMP commands from the cache
- * @codec: HD-audio codec
- *
- * Resume the all amp commands from the cache.
- */
-void snd_hda_codec_resume_amp(struct hda_codec *codec)
-{
-	int i;
-
-	mutex_lock(&codec->hash_mutex);
-	codec->cached_write = 0;
-	for (i = 0; i < codec->amp_cache.buf.used; i++) {
-		struct hda_amp_info *buffer;
-		u32 key;
-		hda_nid_t nid;
-		unsigned int idx, dir, ch;
-		struct hda_amp_info info;
-
-		buffer = snd_array_elem(&codec->amp_cache.buf, i);
-		if (!buffer->head.dirty)
-			continue;
-		buffer->head.dirty = 0;
-		info = *buffer;
-		key = info.head.key;
-		if (!key)
-			continue;
-		nid = key & 0xff;
-		idx = (key >> 16) & 0xff;
-		dir = (key >> 24) & 0xff;
-		for (ch = 0; ch < 2; ch++) {
-			if (!(info.head.val & INFO_AMP_VOL(ch)))
-				continue;
-			mutex_unlock(&codec->hash_mutex);
-			put_vol_mute(codec, info.amp_caps, nid, ch, dir, idx,
-				     info.vol[ch]);
-			mutex_lock(&codec->hash_mutex);
-		}
-	}
-	mutex_unlock(&codec->hash_mutex);
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_resume_amp);
-
 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
 			     unsigned int ofs)
 {
@@ -2478,14 +1576,12 @@ int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
 	long *valp = ucontrol->value.integer.value;
 	int change = 0;
 
-	snd_hda_power_up(codec);
 	if (chs & 1) {
 		change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
 		valp++;
 	}
 	if (chs & 2)
 		change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
-	snd_hda_power_down(codec);
 	return change;
 }
 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
@@ -2572,7 +1668,7 @@ find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
 	if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
 		return NULL;
 	strcpy(id.name, name);
-	return snd_ctl_find_id(codec->bus->card, &id);
+	return snd_ctl_find_id(codec->card, &id);
 }
 
 /**
@@ -2636,7 +1732,7 @@ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
 		nid = kctl->id.subdevice & 0xffff;
 	if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
 		kctl->id.subdevice = 0;
-	err = snd_ctl_add(codec->bus->card, kctl);
+	err = snd_ctl_add(codec->card, kctl);
 	if (err < 0)
 		return err;
 	item = snd_array_new(&codec->mixers);
@@ -2689,7 +1785,7 @@ void snd_hda_ctls_clear(struct hda_codec *codec)
 	int i;
 	struct hda_nid_item *items = codec->mixers.list;
 	for (i = 0; i < codec->mixers.used; i++)
-		snd_ctl_remove(codec->bus->card, items[i].kctl);
+		snd_ctl_remove(codec->card, items[i].kctl);
 	snd_array_free(&codec->mixers);
 	snd_array_free(&codec->nids);
 }
@@ -2712,10 +1808,9 @@ int snd_hda_lock_devices(struct hda_bus *bus)
 	if (!list_empty(&card->ctl_files))
 		goto err_clear;
 
-	list_for_each_entry(codec, &bus->codec_list, list) {
-		int pcm;
-		for (pcm = 0; pcm < codec->num_pcms; pcm++) {
-			struct hda_pcm *cpcm = &codec->pcm_info[pcm];
+	list_for_each_codec(codec, bus) {
+		struct hda_pcm *cpcm;
+		list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
 			if (!cpcm->pcm)
 				continue;
 			if (cpcm->pcm->streams[0].substream_opened ||
@@ -2742,7 +1837,6 @@ void snd_hda_unlock_devices(struct hda_bus *bus)
 {
 	struct snd_card *card = bus->card;
 
-	card = bus->card;
 	spin_lock(&card->files_lock);
 	card->shutdown = 0;
 	spin_unlock(&card->files_lock);
@@ -2762,51 +1856,12 @@ EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
 int snd_hda_codec_reset(struct hda_codec *codec)
 {
 	struct hda_bus *bus = codec->bus;
-	struct snd_card *card = bus->card;
-	int i;
 
 	if (snd_hda_lock_devices(bus) < 0)
 		return -EBUSY;
 
 	/* OK, let it free */
-	cancel_delayed_work_sync(&codec->jackpoll_work);
-#ifdef CONFIG_PM
-	cancel_delayed_work_sync(&codec->power_work);
-	flush_workqueue(bus->workq);
-#endif
-	snd_hda_ctls_clear(codec);
-	/* release PCMs */
-	for (i = 0; i < codec->num_pcms; i++) {
-		if (codec->pcm_info[i].pcm) {
-			snd_device_free(card, codec->pcm_info[i].pcm);
-			clear_bit(codec->pcm_info[i].device,
-				  bus->pcm_dev_bits);
-		}
-	}
-	snd_hda_detach_beep_device(codec);
-	if (codec->patch_ops.free)
-		codec->patch_ops.free(codec);
-	memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
-	snd_hda_jack_tbl_clear(codec);
-	codec->proc_widget_hook = NULL;
-	codec->spec = NULL;
-	free_hda_cache(&codec->amp_cache);
-	free_hda_cache(&codec->cmd_cache);
-	init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
-	init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
-	/* free only driver_pins so that init_pins + user_pins are restored */
-	snd_array_free(&codec->driver_pins);
-	snd_array_free(&codec->cvt_setups);
-	snd_array_free(&codec->spdif_out);
-	snd_array_free(&codec->verbs);
-	codec->num_pcms = 0;
-	codec->pcm_info = NULL;
-	codec->preset = NULL;
-	codec->slave_dig_outs = NULL;
-	codec->spdif_status_reset = 0;
-	unload_parser(codec);
-	module_put(codec->owner);
-	codec->owner = NULL;
+	snd_hdac_device_unregister(&codec->core);
 
 	/* allow device access again */
 	snd_hda_unlock_devices(bus);
@@ -3153,7 +2208,6 @@ int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
 	long *valp = ucontrol->value.integer.value;
 	int change = 0;
 
-	snd_hda_power_up(codec);
 	if (chs & 1) {
 		change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 						  HDA_AMP_MUTE,
@@ -3165,7 +2219,6 @@ int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
 						   HDA_AMP_MUTE,
 						   *valp ? 0 : HDA_AMP_MUTE);
 	hda_call_check_power_status(codec, nid);
-	snd_hda_power_down(codec);
 	return change;
 }
 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
@@ -3466,25 +2519,35 @@ static unsigned int convert_to_spdif_status(unsigned short val)
 
 /* set digital convert verbs both for the given NID and its slaves */
 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
-			int verb, int val)
+			int mask, int val)
 {
 	const hda_nid_t *d;
 
-	snd_hda_codec_write_cache(codec, nid, 0, verb, val);
+	snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
+			       mask, val);
 	d = codec->slave_dig_outs;
 	if (!d)
 		return;
 	for (; *d; d++)
-		snd_hda_codec_write_cache(codec, *d, 0, verb, val);
+		snd_hdac_regmap_update(&codec->core, nid,
+				       AC_VERB_SET_DIGI_CONVERT_1, mask, val);
 }
 
 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
 				       int dig1, int dig2)
 {
-	if (dig1 != -1)
-		set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_1, dig1);
-	if (dig2 != -1)
-		set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_2, dig2);
+	unsigned int mask = 0;
+	unsigned int val = 0;
+
+	if (dig1 != -1) {
+		mask |= 0xff;
+		val = dig1;
+	}
+	if (dig2 != -1) {
+		mask |= 0xff00;
+		val |= dig2 << 8;
+	}
+	set_dig_out(codec, nid, mask, val);
 }
 
 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
@@ -3617,6 +2680,7 @@ int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
 	struct snd_kcontrol *kctl;
 	struct snd_kcontrol_new *dig_mix;
 	int idx = 0;
+	int val = 0;
 	const int spdif_index = 16;
 	struct hda_spdif_out *spdif;
 	struct hda_bus *bus = codec->bus;
@@ -3657,8 +2721,9 @@ int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
 			return err;
 	}
 	spdif->nid = cvt_nid;
-	spdif->ctls = snd_hda_codec_read(codec, cvt_nid, 0,
-					 AC_VERB_GET_DIGI_CONVERT_1, 0);
+	snd_hdac_regmap_read(&codec->core, cvt_nid,
+			     AC_VERB_GET_DIGI_CONVERT_1, &val);
+	spdif->ctls = val;
 	spdif->status = convert_to_spdif_status(spdif->ctls);
 	return 0;
 }
@@ -3802,8 +2867,8 @@ static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
 	change = codec->spdif_in_enable != val;
 	if (change) {
 		codec->spdif_in_enable = val;
-		snd_hda_codec_write_cache(codec, nid, 0,
-					  AC_VERB_SET_DIGI_CONVERT_1, val);
+		snd_hdac_regmap_write(&codec->core, nid,
+				      AC_VERB_SET_DIGI_CONVERT_1, val);
 	}
 	mutex_unlock(&codec->spdif_mutex);
 	return change;
@@ -3814,10 +2879,11 @@ static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = kcontrol->private_value;
-	unsigned short val;
+	unsigned int val;
 	unsigned int sbits;
 
-	val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
+	snd_hdac_regmap_read(&codec->core, nid,
+			     AC_VERB_GET_DIGI_CONVERT_1, &val);
 	sbits = convert_to_spdif_status(val);
 	ucontrol->value.iec958.status[0] = sbits;
 	ucontrol->value.iec958.status[1] = sbits >> 8;
@@ -3883,153 +2949,6 @@ int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
 }
 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
 
-/*
- * command cache
- */
-
-/* build a 31bit cache key with the widget id and the command parameter */
-#define build_cmd_cache_key(nid, verb)	((verb << 8) | nid)
-#define get_cmd_cache_nid(key)		((key) & 0xff)
-#define get_cmd_cache_cmd(key)		(((key) >> 8) & 0xffff)
-
-/**
- * snd_hda_codec_write_cache - send a single command with caching
- * @codec: the HDA codec
- * @nid: NID to send the command
- * @flags: optional bit flags
- * @verb: the verb to send
- * @parm: the parameter for the verb
- *
- * Send a single command without waiting for response.
- *
- * Returns 0 if successful, or a negative error code.
- */
-int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
-			      int flags, unsigned int verb, unsigned int parm)
-{
-	int err;
-	struct hda_cache_head *c;
-	u32 key;
-	unsigned int cache_only;
-
-	cache_only = codec->cached_write;
-	if (!cache_only) {
-		err = snd_hda_codec_write(codec, nid, flags, verb, parm);
-		if (err < 0)
-			return err;
-	}
-
-	/* parm may contain the verb stuff for get/set amp */
-	verb = verb | (parm >> 8);
-	parm &= 0xff;
-	key = build_cmd_cache_key(nid, verb);
-	mutex_lock(&codec->bus->cmd_mutex);
-	c = get_alloc_hash(&codec->cmd_cache, key);
-	if (c) {
-		c->val = parm;
-		c->dirty = cache_only;
-	}
-	mutex_unlock(&codec->bus->cmd_mutex);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_write_cache);
-
-/**
- * snd_hda_codec_update_cache - check cache and write the cmd only when needed
- * @codec: the HDA codec
- * @nid: NID to send the command
- * @flags: optional bit flags
- * @verb: the verb to send
- * @parm: the parameter for the verb
- *
- * This function works like snd_hda_codec_write_cache(), but it doesn't send
- * command if the parameter is already identical with the cached value.
- * If not, it sends the command and refreshes the cache.
- *
- * Returns 0 if successful, or a negative error code.
- */
-int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
-			       int flags, unsigned int verb, unsigned int parm)
-{
-	struct hda_cache_head *c;
-	u32 key;
-
-	/* parm may contain the verb stuff for get/set amp */
-	verb = verb | (parm >> 8);
-	parm &= 0xff;
-	key = build_cmd_cache_key(nid, verb);
-	mutex_lock(&codec->bus->cmd_mutex);
-	c = get_hash(&codec->cmd_cache, key);
-	if (c && c->val == parm) {
-		mutex_unlock(&codec->bus->cmd_mutex);
-		return 0;
-	}
-	mutex_unlock(&codec->bus->cmd_mutex);
-	return snd_hda_codec_write_cache(codec, nid, flags, verb, parm);
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_update_cache);
-
-/**
- * snd_hda_codec_resume_cache - Resume the all commands from the cache
- * @codec: HD-audio codec
- *
- * Execute all verbs recorded in the command caches to resume.
- */
-void snd_hda_codec_resume_cache(struct hda_codec *codec)
-{
-	int i;
-
-	mutex_lock(&codec->hash_mutex);
-	codec->cached_write = 0;
-	for (i = 0; i < codec->cmd_cache.buf.used; i++) {
-		struct hda_cache_head *buffer;
-		u32 key;
-
-		buffer = snd_array_elem(&codec->cmd_cache.buf, i);
-		key = buffer->key;
-		if (!key)
-			continue;
-		if (!buffer->dirty)
-			continue;
-		buffer->dirty = 0;
-		mutex_unlock(&codec->hash_mutex);
-		snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
-				    get_cmd_cache_cmd(key), buffer->val);
-		mutex_lock(&codec->hash_mutex);
-	}
-	mutex_unlock(&codec->hash_mutex);
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_resume_cache);
-
-/**
- * snd_hda_sequence_write_cache - sequence writes with caching
- * @codec: the HDA codec
- * @seq: VERB array to send
- *
- * Send the commands sequentially from the given array.
- * Thte commands are recorded on cache for power-save and resume.
- * The array must be terminated with NID=0.
- */
-void snd_hda_sequence_write_cache(struct hda_codec *codec,
-				  const struct hda_verb *seq)
-{
-	for (; seq->nid; seq++)
-		snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
-					  seq->param);
-}
-EXPORT_SYMBOL_GPL(snd_hda_sequence_write_cache);
-
-/**
- * snd_hda_codec_flush_cache - Execute all pending (cached) amps / verbs
- * @codec: HD-audio codec
- */
-void snd_hda_codec_flush_cache(struct hda_codec *codec)
-{
-	snd_hda_codec_resume_amp(codec);
-	snd_hda_codec_resume_cache(codec);
-}
-EXPORT_SYMBOL_GPL(snd_hda_codec_flush_cache);
-
 /**
  * snd_hda_codec_set_power_to_all - Set the power state to all widgets
  * @codec: the HDA codec
@@ -4043,10 +2962,9 @@ EXPORT_SYMBOL_GPL(snd_hda_codec_flush_cache);
 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 				    unsigned int power_state)
 {
-	hda_nid_t nid = codec->start_nid;
-	int i;
+	hda_nid_t nid;
 
-	for (i = 0; i < codec->num_nodes; i++, nid++) {
+	for_each_hda_codec_node(nid, codec) {
 		unsigned int wcaps = get_wcaps(codec, nid);
 		unsigned int state = power_state;
 		if (!(wcaps & AC_WCAP_POWER))
@@ -4062,22 +2980,6 @@ void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
 
-/*
- *  supported power states check
- */
-static bool snd_hda_codec_get_supported_ps(struct hda_codec *codec, hda_nid_t fg,
-				unsigned int power_state)
-{
-	int sup = snd_hda_param_read(codec, fg, AC_PAR_POWER_STATE);
-
-	if (sup == -1)
-		return false;
-	if (sup & power_state)
-		return true;
-	else
-		return false;
-}
-
 /*
  * wait until the state is reached, returns the current state
  */
@@ -4117,7 +3019,7 @@ unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
 					     hda_nid_t nid,
 					     unsigned int power_state)
 {
-	if (nid == codec->afg || nid == codec->mfg)
+	if (nid == codec->core.afg || nid == codec->core.mfg)
 		return power_state;
 	if (power_state == AC_PWRST_D3 &&
 	    get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
@@ -4137,7 +3039,7 @@ EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
 static unsigned int hda_set_power_state(struct hda_codec *codec,
 					unsigned int power_state)
 {
-	hda_nid_t fg = codec->afg ? codec->afg : codec->mfg;
+	hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
 	int count;
 	unsigned int state;
 	int flags = 0;
@@ -4145,7 +3047,7 @@ static unsigned int hda_set_power_state(struct hda_codec *codec,
 	/* this delay seems necessary to avoid click noise at power-down */
 	if (power_state == AC_PWRST_D3) {
 		if (codec->depop_delay < 0)
-			msleep(codec->epss ? 10 : 100);
+			msleep(codec_has_epss(codec) ? 10 : 100);
 		else if (codec->depop_delay > 0)
 			msleep(codec->depop_delay);
 		flags = HDA_RW_NO_RESPONSE_FALLBACK;
@@ -4179,14 +3081,13 @@ static unsigned int hda_set_power_state(struct hda_codec *codec,
  */
 static void sync_power_up_states(struct hda_codec *codec)
 {
-	hda_nid_t nid = codec->start_nid;
-	int i;
+	hda_nid_t nid;
 
 	/* don't care if no filter is used */
 	if (!codec->power_filter)
 		return;
 
-	for (i = 0; i < codec->num_nodes; i++, nid++) {
+	for_each_hda_codec_node(nid, codec) {
 		unsigned int wcaps = get_wcaps(codec, nid);
 		unsigned int target;
 		if (!(wcaps & AC_WCAP_POWER))
@@ -4207,68 +3108,59 @@ static void hda_exec_init_verbs(struct hda_codec *codec)
 	if (codec->init_verbs.list)
 		snd_hda_sequence_write(codec, codec->init_verbs.list);
 }
-#else
-static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
-#endif
+#else
+static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
+#endif
+
+#ifdef CONFIG_PM
+/* update the power on/off account with the current jiffies */
+static void update_power_acct(struct hda_codec *codec, bool on)
+{
+	unsigned long delta = jiffies - codec->power_jiffies;
+
+	if (on)
+		codec->power_on_acct += delta;
+	else
+		codec->power_off_acct += delta;
+	codec->power_jiffies += delta;
+}
+
+void snd_hda_update_power_acct(struct hda_codec *codec)
+{
+	update_power_acct(codec, hda_codec_is_power_on(codec));
+}
 
-#ifdef CONFIG_PM
 /*
  * call suspend and power-down; used both from PM and power-save
  * this function returns the power state in the end
  */
-static unsigned int hda_call_codec_suspend(struct hda_codec *codec, bool in_wq)
+static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
 {
 	unsigned int state;
 
-	codec->in_pm = 1;
+	atomic_inc(&codec->core.in_pm);
 
 	if (codec->patch_ops.suspend)
 		codec->patch_ops.suspend(codec);
 	hda_cleanup_all_streams(codec);
 	state = hda_set_power_state(codec, AC_PWRST_D3);
-	/* Cancel delayed work if we aren't currently running from it. */
-	if (!in_wq)
-		cancel_delayed_work_sync(&codec->power_work);
-	spin_lock(&codec->power_lock);
-	snd_hda_update_power_acct(codec);
-	trace_hda_power_down(codec);
-	codec->power_on = 0;
-	codec->power_transition = 0;
-	codec->power_jiffies = jiffies;
-	spin_unlock(&codec->power_lock);
-	codec->in_pm = 0;
+	update_power_acct(codec, true);
+	atomic_dec(&codec->core.in_pm);
 	return state;
 }
 
-/* mark all entries of cmd and amp caches dirty */
-static void hda_mark_cmd_cache_dirty(struct hda_codec *codec)
-{
-	int i;
-	for (i = 0; i < codec->cmd_cache.buf.used; i++) {
-		struct hda_cache_head *cmd;
-		cmd = snd_array_elem(&codec->cmd_cache.buf, i);
-		cmd->dirty = 1;
-	}
-	for (i = 0; i < codec->amp_cache.buf.used; i++) {
-		struct hda_amp_info *amp;
-		amp = snd_array_elem(&codec->amp_cache.buf, i);
-		amp->head.dirty = 1;
-	}
-}
-
 /*
  * kick up codec; used both from PM and power-save
  */
 static void hda_call_codec_resume(struct hda_codec *codec)
 {
-	codec->in_pm = 1;
+	atomic_inc(&codec->core.in_pm);
 
-	hda_mark_cmd_cache_dirty(codec);
+	if (codec->core.regmap)
+		regcache_mark_dirty(codec->core.regmap);
+
+	codec->power_jiffies = jiffies;
 
-	/* set as if powered on for avoiding re-entering the resume
-	 * in the resume / power-save sequence
-	 */
-	hda_keep_power_on(codec);
 	hda_set_power_state(codec, AC_PWRST_D0);
 	restore_shutup_pins(codec);
 	hda_exec_init_verbs(codec);
@@ -4278,72 +3170,71 @@ static void hda_call_codec_resume(struct hda_codec *codec)
 	else {
 		if (codec->patch_ops.init)
 			codec->patch_ops.init(codec);
-		snd_hda_codec_resume_amp(codec);
-		snd_hda_codec_resume_cache(codec);
+		if (codec->core.regmap)
+			regcache_sync(codec->core.regmap);
 	}
 
 	if (codec->jackpoll_interval)
 		hda_jackpoll_work(&codec->jackpoll_work.work);
 	else
 		snd_hda_jack_report_sync(codec);
-
-	codec->in_pm = 0;
-	snd_hda_power_down(codec); /* flag down before returning */
+	atomic_dec(&codec->core.in_pm);
 }
-#endif /* CONFIG_PM */
 
+static int hda_codec_runtime_suspend(struct device *dev)
+{
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+	struct hda_pcm *pcm;
+	unsigned int state;
 
-/**
- * snd_hda_build_controls - build mixer controls
- * @bus: the BUS
- *
- * Creates mixer controls for each codec included in the bus.
- *
- * Returns 0 if successful, otherwise a negative error code.
- */
-int snd_hda_build_controls(struct hda_bus *bus)
+	cancel_delayed_work_sync(&codec->jackpoll_work);
+	list_for_each_entry(pcm, &codec->pcm_list_head, list)
+		snd_pcm_suspend_all(pcm->pcm);
+	state = hda_call_codec_suspend(codec);
+	if (codec_has_clkstop(codec) && codec_has_epss(codec) &&
+	    (state & AC_PWRST_CLK_STOP_OK))
+		snd_hdac_codec_link_down(&codec->core);
+	return 0;
+}
+
+static int hda_codec_runtime_resume(struct device *dev)
 {
-	struct hda_codec *codec;
+	struct hda_codec *codec = dev_to_hda_codec(dev);
 
-	list_for_each_entry(codec, &bus->codec_list, list) {
-		int err = snd_hda_codec_build_controls(codec);
-		if (err < 0) {
-			codec_err(codec,
-				  "cannot build controls for #%d (error %d)\n",
-				  codec->addr, err);
-			err = snd_hda_codec_reset(codec);
-			if (err < 0) {
-				codec_err(codec,
-					  "cannot revert codec\n");
-				return err;
-			}
-		}
-	}
+	snd_hdac_codec_link_up(&codec->core);
+	hda_call_codec_resume(codec);
+	pm_runtime_mark_last_busy(dev);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(snd_hda_build_controls);
+#endif /* CONFIG_PM */
+
+/* referred in hda_bind.c */
+const struct dev_pm_ops hda_codec_driver_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+	SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
+			   NULL)
+};
 
 /*
  * add standard channel maps if not specified
  */
 static int add_std_chmaps(struct hda_codec *codec)
 {
-	int i, str, err;
+	struct hda_pcm *pcm;
+	int str, err;
 
-	for (i = 0; i < codec->num_pcms; i++) {
+	list_for_each_entry(pcm, &codec->pcm_list_head, list) {
 		for (str = 0; str < 2; str++) {
-			struct snd_pcm *pcm = codec->pcm_info[i].pcm;
-			struct hda_pcm_stream *hinfo =
-				&codec->pcm_info[i].stream[str];
+			struct hda_pcm_stream *hinfo = &pcm->stream[str];
 			struct snd_pcm_chmap *chmap;
 			const struct snd_pcm_chmap_elem *elem;
 
-			if (codec->pcm_info[i].own_chmap)
-				continue;
-			if (!pcm || !hinfo->substreams)
+			if (!pcm || pcm->own_chmap ||
+			    !hinfo->substreams)
 				continue;
 			elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
-			err = snd_pcm_add_chmap_ctls(pcm, str, elem,
+			err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
 						     hinfo->channels_max,
 						     0, &chmap);
 			if (err < 0)
@@ -4499,43 +3390,29 @@ unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
 }
 EXPORT_SYMBOL_GPL(snd_hda_calc_stream_format);
 
-static unsigned int get_pcm_param(struct hda_codec *codec, hda_nid_t nid,
-				  int dir)
+static unsigned int query_pcm_param(struct hda_codec *codec, hda_nid_t nid)
 {
 	unsigned int val = 0;
-	if (nid != codec->afg &&
+	if (nid != codec->core.afg &&
 	    (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD))
 		val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
 	if (!val || val == -1)
-		val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
+		val = snd_hda_param_read(codec, codec->core.afg, AC_PAR_PCM);
 	if (!val || val == -1)
 		return 0;
 	return val;
 }
 
-static unsigned int query_pcm_param(struct hda_codec *codec, hda_nid_t nid)
-{
-	return query_caps_hash(codec, nid, 0, HDA_HASH_PARPCM_KEY(nid),
-			       get_pcm_param);
-}
-
-static unsigned int get_stream_param(struct hda_codec *codec, hda_nid_t nid,
-				     int dir)
+static unsigned int query_stream_param(struct hda_codec *codec, hda_nid_t nid)
 {
 	unsigned int streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
 	if (!streams || streams == -1)
-		streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
+		streams = snd_hda_param_read(codec, codec->core.afg, AC_PAR_STREAM);
 	if (!streams || streams == -1)
 		return 0;
 	return streams;
 }
 
-static unsigned int query_stream_param(struct hda_codec *codec, hda_nid_t nid)
-{
-	return query_caps_hash(codec, nid, 0, HDA_HASH_PARSTR_KEY(nid),
-			       get_stream_param);
-}
-
 /**
  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
  * @codec: the HDA codec
@@ -4792,7 +3669,11 @@ int snd_hda_codec_prepare(struct hda_codec *codec,
 {
 	int ret;
 	mutex_lock(&codec->bus->prepare_mutex);
-	ret = hinfo->ops.prepare(hinfo, codec, stream, format, substream);
+	if (hinfo->ops.prepare)
+		ret = hinfo->ops.prepare(hinfo, codec, stream, format,
+					 substream);
+	else
+		ret = -ENODEV;
 	if (ret >= 0)
 		purify_inactive_streams(codec);
 	mutex_unlock(&codec->bus->prepare_mutex);
@@ -4813,7 +3694,8 @@ void snd_hda_codec_cleanup(struct hda_codec *codec,
 			   struct snd_pcm_substream *substream)
 {
 	mutex_lock(&codec->bus->prepare_mutex);
-	hinfo->ops.cleanup(hinfo, codec, substream);
+	if (hinfo->ops.cleanup)
+		hinfo->ops.cleanup(hinfo, codec, substream);
 	mutex_unlock(&codec->bus->prepare_mutex);
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
@@ -4871,112 +3753,84 @@ static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
 	return -EAGAIN;
 }
 
-/*
- * attach a new PCM stream
- */
-static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
+/* call build_pcms ops of the given codec and set up the default parameters */
+int snd_hda_codec_parse_pcms(struct hda_codec *codec)
 {
-	struct hda_bus *bus = codec->bus;
-	struct hda_pcm_stream *info;
-	int stream, err;
+	struct hda_pcm *cpcm;
+	int err;
 
-	if (snd_BUG_ON(!pcm->name))
-		return -EINVAL;
-	for (stream = 0; stream < 2; stream++) {
-		info = &pcm->stream[stream];
-		if (info->substreams) {
+	if (!list_empty(&codec->pcm_list_head))
+		return 0; /* already parsed */
+
+	if (!codec->patch_ops.build_pcms)
+		return 0;
+
+	err = codec->patch_ops.build_pcms(codec);
+	if (err < 0) {
+		codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
+			  codec->core.addr, err);
+		return err;
+	}
+
+	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
+		int stream;
+
+		for (stream = 0; stream < 2; stream++) {
+			struct hda_pcm_stream *info = &cpcm->stream[stream];
+
+			if (!info->substreams)
+				continue;
 			err = set_pcm_default_values(codec, info);
-			if (err < 0)
+			if (err < 0) {
+				codec_warn(codec,
+					   "fail to setup default for PCM %s\n",
+					   cpcm->name);
 				return err;
+			}
 		}
 	}
-	return bus->ops.attach_pcm(bus, codec, pcm);
+
+	return 0;
 }
 
 /* assign all PCMs of the given codec */
 int snd_hda_codec_build_pcms(struct hda_codec *codec)
 {
-	unsigned int pcm;
-	int err;
+	struct hda_bus *bus = codec->bus;
+	struct hda_pcm *cpcm;
+	int dev, err;
 
-	if (!codec->num_pcms) {
-		if (!codec->patch_ops.build_pcms)
-			return 0;
-		err = codec->patch_ops.build_pcms(codec);
-		if (err < 0) {
-			codec_err(codec,
-				  "cannot build PCMs for #%d (error %d)\n",
-				  codec->addr, err);
-			err = snd_hda_codec_reset(codec);
-			if (err < 0) {
-				codec_err(codec,
-					  "cannot revert codec\n");
-				return err;
-			}
-		}
+	if (snd_BUG_ON(!bus->ops.attach_pcm))
+		return -EINVAL;
+
+	err = snd_hda_codec_parse_pcms(codec);
+	if (err < 0) {
+		snd_hda_codec_reset(codec);
+		return err;
 	}
-	for (pcm = 0; pcm < codec->num_pcms; pcm++) {
-		struct hda_pcm *cpcm = &codec->pcm_info[pcm];
-		int dev;
 
+	/* attach a new PCM streams */
+	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
+		if (cpcm->pcm)
+			continue; /* already attached */
 		if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
 			continue; /* no substreams assigned */
 
-		if (!cpcm->pcm) {
-			dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type);
-			if (dev < 0)
-				continue; /* no fatal error */
-			cpcm->device = dev;
-			err = snd_hda_attach_pcm(codec, cpcm);
-			if (err < 0) {
-				codec_err(codec,
-					  "cannot attach PCM stream %d for codec #%d\n",
-					  dev, codec->addr);
-				continue; /* no fatal error */
-			}
+		dev = get_empty_pcm_device(bus, cpcm->pcm_type);
+		if (dev < 0)
+			continue; /* no fatal error */
+		cpcm->device = dev;
+		err =  bus->ops.attach_pcm(bus, codec, cpcm);
+		if (err < 0) {
+			codec_err(codec,
+				  "cannot attach PCM stream %d for codec #%d\n",
+				  dev, codec->core.addr);
+			continue; /* no fatal error */
 		}
 	}
-	return 0;
-}
-
-/**
- * snd_hda_build_pcms - build PCM information
- * @bus: the BUS
- *
- * Create PCM information for each codec included in the bus.
- *
- * The build_pcms codec patch is requested to set up codec->num_pcms and
- * codec->pcm_info properly.  The array is referred by the top-level driver
- * to create its PCM instances.
- * The allocated codec->pcm_info should be released in codec->patch_ops.free
- * callback.
- *
- * At least, substreams, channels_min and channels_max must be filled for
- * each stream.  substreams = 0 indicates that the stream doesn't exist.
- * When rates and/or formats are zero, the supported values are queried
- * from the given nid.  The nid is used also by the default ops.prepare
- * and ops.cleanup callbacks.
- *
- * The driver needs to call ops.open in its open callback.  Similarly,
- * ops.close is supposed to be called in the close callback.
- * ops.prepare should be called in the prepare or hw_params callback
- * with the proper parameters for set up.
- * ops.cleanup should be called in hw_free for clean up of streams.
- *
- * This function returns 0 if successful, or a negative error code.
- */
-int snd_hda_build_pcms(struct hda_bus *bus)
-{
-	struct hda_codec *codec;
 
-	list_for_each_entry(codec, &bus->codec_list, list) {
-		int err = snd_hda_codec_build_pcms(codec);
-		if (err < 0)
-			return err;
-	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(snd_hda_build_pcms);
 
 /**
  * snd_hda_add_new_ctls - create controls from the array
@@ -5013,8 +3867,8 @@ int snd_hda_add_new_ctls(struct hda_codec *codec,
 			 * the codec addr; if it still fails (or it's the
 			 * primary codec), then try another control index
 			 */
-			if (!addr && codec->addr)
-				addr = codec->addr;
+			if (!addr && codec->core.addr)
+				addr = codec->core.addr;
 			else if (!idx && !knew->index) {
 				idx = find_empty_mixer_ctl_idx(codec,
 							       knew->name, 0);
@@ -5029,127 +3883,37 @@ int snd_hda_add_new_ctls(struct hda_codec *codec,
 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
 
 #ifdef CONFIG_PM
-static void hda_power_work(struct work_struct *work)
-{
-	struct hda_codec *codec =
-		container_of(work, struct hda_codec, power_work.work);
-	struct hda_bus *bus = codec->bus;
-	unsigned int state;
-
-	spin_lock(&codec->power_lock);
-	if (codec->power_transition > 0) { /* during power-up sequence? */
-		spin_unlock(&codec->power_lock);
-		return;
-	}
-	if (!codec->power_on || codec->power_count) {
-		codec->power_transition = 0;
-		spin_unlock(&codec->power_lock);
-		return;
-	}
-	spin_unlock(&codec->power_lock);
-
-	state = hda_call_codec_suspend(codec, true);
-	if (!bus->power_keep_link_on && (state & AC_PWRST_CLK_STOP_OK))
-		hda_call_pm_notify(codec, false);
-}
-
-static void hda_keep_power_on(struct hda_codec *codec)
-{
-	spin_lock(&codec->power_lock);
-	codec->power_count++;
-	codec->power_on = 1;
-	codec->power_jiffies = jiffies;
-	spin_unlock(&codec->power_lock);
-	hda_call_pm_notify(codec, true);
-}
-
-/* update the power on/off account with the current jiffies */
-void snd_hda_update_power_acct(struct hda_codec *codec)
-{
-	unsigned long delta = jiffies - codec->power_jiffies;
-	if (codec->power_on)
-		codec->power_on_acct += delta;
-	else
-		codec->power_off_acct += delta;
-	codec->power_jiffies += delta;
-}
-
-/* Transition to powered up, if wait_power_down then wait for a pending
- * transition to D3 to complete. A pending D3 transition is indicated
- * with power_transition == -1. */
-/* call this with codec->power_lock held! */
-static void __snd_hda_power_up(struct hda_codec *codec, bool wait_power_down)
-{
-	/* Return if power_on or transitioning to power_on, unless currently
-	 * powering down. */
-	if ((codec->power_on || codec->power_transition > 0) &&
-	    !(wait_power_down && codec->power_transition < 0))
-		return;
-	spin_unlock(&codec->power_lock);
-
-	cancel_delayed_work_sync(&codec->power_work);
-
-	spin_lock(&codec->power_lock);
-	/* If the power down delayed work was cancelled above before starting,
-	 * then there is no need to go through power up here.
-	 */
-	if (codec->power_on) {
-		if (codec->power_transition < 0)
-			codec->power_transition = 0;
-		return;
-	}
-
-	trace_hda_power_up(codec);
-	snd_hda_update_power_acct(codec);
-	codec->power_on = 1;
-	codec->power_jiffies = jiffies;
-	codec->power_transition = 1; /* avoid reentrance */
-	spin_unlock(&codec->power_lock);
-
-	hda_call_codec_resume(codec);
-
-	spin_lock(&codec->power_lock);
-	codec->power_transition = 0;
-}
-
-#define power_save(codec)	\
-	((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
-
-/* Transition to powered down */
-static void __snd_hda_power_down(struct hda_codec *codec)
+static void codec_set_power_save(struct hda_codec *codec, int delay)
 {
-	if (!codec->power_on || codec->power_count || codec->power_transition)
-		return;
+	struct device *dev = hda_codec_dev(codec);
 
-	if (power_save(codec)) {
-		codec->power_transition = -1; /* avoid reentrance */
-		queue_delayed_work(codec->bus->workq, &codec->power_work,
-				msecs_to_jiffies(power_save(codec) * 1000));
+	if (delay > 0) {
+		pm_runtime_set_autosuspend_delay(dev, delay);
+		pm_runtime_use_autosuspend(dev);
+		pm_runtime_allow(dev);
+		if (!pm_runtime_suspended(dev))
+			pm_runtime_mark_last_busy(dev);
+	} else {
+		pm_runtime_dont_use_autosuspend(dev);
+		pm_runtime_forbid(dev);
 	}
 }
 
 /**
- * snd_hda_power_save - Power-up/down/sync the codec
- * @codec: HD-audio codec
- * @delta: the counter delta to change
- * @d3wait: sync for D3 transition complete
+ * snd_hda_set_power_save - reprogram autosuspend for the given delay
+ * @bus: HD-audio bus
+ * @delay: autosuspend delay in msec, 0 = off
  *
- * Change the power-up counter via @delta, and power up or down the hardware
- * appropriately.  For the power-down, queue to the delayed action.
- * Passing zero to @delta means to synchronize the power state.
+ * Synchronize the runtime PM autosuspend state from the power_save option.
  */
-void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait)
+void snd_hda_set_power_save(struct hda_bus *bus, int delay)
 {
-	spin_lock(&codec->power_lock);
-	codec->power_count += delta;
-	trace_hda_power_count(codec);
-	if (delta > 0)
-		__snd_hda_power_up(codec, d3wait);
-	else
-		__snd_hda_power_down(codec);
-	spin_unlock(&codec->power_lock);
+	struct hda_codec *c;
+
+	list_for_each_codec(c, bus)
+		codec_set_power_save(c, delay);
 }
-EXPORT_SYMBOL_GPL(snd_hda_power_save);
+EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
 
 /**
  * snd_hda_check_amp_list_power - Check the amp list and update the power
@@ -5187,7 +3951,7 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
 			if (!(v & HDA_AMP_MUTE) && v > 0) {
 				if (!check->power_on) {
 					check->power_on = 1;
-					snd_hda_power_up(codec);
+					snd_hda_power_up_pm(codec);
 				}
 				return 1;
 			}
@@ -5195,95 +3959,13 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
 	}
 	if (check->power_on) {
 		check->power_on = 0;
-		snd_hda_power_down(codec);
+		snd_hda_power_down_pm(codec);
 	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
 #endif
 
-/*
- * Channel mode helper
- */
-
-/**
- * snd_hda_ch_mode_info - Info callback helper for the channel mode enum
- * @codec: the HDA codec
- * @uinfo: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- */
-int snd_hda_ch_mode_info(struct hda_codec *codec,
-			 struct snd_ctl_elem_info *uinfo,
-			 const struct hda_channel_mode *chmode,
-			 int num_chmodes)
-{
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = num_chmodes;
-	if (uinfo->value.enumerated.item >= num_chmodes)
-		uinfo->value.enumerated.item = num_chmodes - 1;
-	sprintf(uinfo->value.enumerated.name, "%dch",
-		chmode[uinfo->value.enumerated.item].channels);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_info);
-
-/**
- * snd_hda_ch_mode_get - Get callback helper for the channel mode enum
- * @codec: the HDA codec
- * @ucontrol: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- * @max_channels: max number of channels
- */
-int snd_hda_ch_mode_get(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int max_channels)
-{
-	int i;
-
-	for (i = 0; i < num_chmodes; i++) {
-		if (max_channels == chmode[i].channels) {
-			ucontrol->value.enumerated.item[0] = i;
-			break;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_get);
-
-/**
- * snd_hda_ch_mode_put - Put callback helper for the channel mode enum
- * @codec: the HDA codec
- * @ucontrol: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- * @max_channelsp: pointer to store the max channels
- */
-int snd_hda_ch_mode_put(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int *max_channelsp)
-{
-	unsigned int mode;
-
-	mode = ucontrol->value.enumerated.item[0];
-	if (mode >= num_chmodes)
-		return -EINVAL;
-	if (*max_channelsp == chmode[mode].channels)
-		return 0;
-	/* change the current channel setting */
-	*max_channelsp = chmode[mode].channels;
-	if (chmode[mode].sequence)
-		snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
-	return 1;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_put);
-
 /*
  * input MUX helper
  */
@@ -5417,24 +4099,6 @@ static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
 	}
 }
 
-/**
- * snd_hda_bus_reboot_notify - call the reboot notifier of each codec
- * @bus: HD-audio bus
- */
-void snd_hda_bus_reboot_notify(struct hda_bus *bus)
-{
-	struct hda_codec *codec;
-
-	if (!bus)
-		return;
-	list_for_each_entry(codec, &bus->codec_list, list) {
-		if (hda_codec_is_power_on(codec) &&
-		    codec->patch_ops.reboot_notify)
-			codec->patch_ops.reboot_notify(codec);
-	}
-}
-EXPORT_SYMBOL_GPL(snd_hda_bus_reboot_notify);
-
 /**
  * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
  * @codec: the HDA codec
@@ -5825,123 +4489,26 @@ int snd_hda_add_imux_item(struct hda_codec *codec,
 }
 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
 
-
-#ifdef CONFIG_PM
-/*
- * power management
- */
-
-
-static void hda_async_suspend(void *data, async_cookie_t cookie)
-{
-	hda_call_codec_suspend(data, false);
-}
-
-static void hda_async_resume(void *data, async_cookie_t cookie)
-{
-	hda_call_codec_resume(data);
-}
-
 /**
- * snd_hda_suspend - suspend the codecs
- * @bus: the HDA bus
- *
- * Returns 0 if successful.
+ * snd_hda_bus_reset - Reset the bus
+ * @bus: HD-audio bus
  */
-int snd_hda_suspend(struct hda_bus *bus)
+void snd_hda_bus_reset(struct hda_bus *bus)
 {
 	struct hda_codec *codec;
-	ASYNC_DOMAIN_EXCLUSIVE(domain);
 
-	list_for_each_entry(codec, &bus->codec_list, list) {
+	list_for_each_codec(codec, bus) {
+		/* FIXME: maybe a better way needed for forced reset */
 		cancel_delayed_work_sync(&codec->jackpoll_work);
+#ifdef CONFIG_PM
 		if (hda_codec_is_power_on(codec)) {
-			if (bus->num_codecs > 1)
-				async_schedule_domain(hda_async_suspend, codec,
-						      &domain);
-			else
-				hda_call_codec_suspend(codec, false);
-		}
-	}
-
-	if (bus->num_codecs > 1)
-		async_synchronize_full_domain(&domain);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_suspend);
-
-/**
- * snd_hda_resume - resume the codecs
- * @bus: the HDA bus
- *
- * Returns 0 if successful.
- */
-int snd_hda_resume(struct hda_bus *bus)
-{
-	struct hda_codec *codec;
-	ASYNC_DOMAIN_EXCLUSIVE(domain);
-
-	list_for_each_entry(codec, &bus->codec_list, list) {
-		if (bus->num_codecs > 1)
-			async_schedule_domain(hda_async_resume, codec, &domain);
-		else
+			hda_call_codec_suspend(codec);
 			hda_call_codec_resume(codec);
+		}
+#endif
 	}
-
-	if (bus->num_codecs > 1)
-		async_synchronize_full_domain(&domain);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_resume);
-#endif /* CONFIG_PM */
-
-/*
- * generic arrays
- */
-
-/**
- * snd_array_new - get a new element from the given array
- * @array: the array object
- *
- * Get a new element from the given array.  If it exceeds the
- * pre-allocated array size, re-allocate the array.
- *
- * Returns NULL if allocation failed.
- */
-void *snd_array_new(struct snd_array *array)
-{
-	if (snd_BUG_ON(!array->elem_size))
-		return NULL;
-	if (array->used >= array->alloced) {
-		int num = array->alloced + array->alloc_align;
-		int size = (num + 1) * array->elem_size;
-		void *nlist;
-		if (snd_BUG_ON(num >= 4096))
-			return NULL;
-		nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO);
-		if (!nlist)
-			return NULL;
-		array->list = nlist;
-		array->alloced = num;
-	}
-	return snd_array_elem(array, array->used++);
-}
-EXPORT_SYMBOL_GPL(snd_array_new);
-
-/**
- * snd_array_free - free the given array elements
- * @array: the array object
- */
-void snd_array_free(struct snd_array *array)
-{
-	kfree(array->list);
-	array->used = 0;
-	array->alloced = 0;
-	array->list = NULL;
 }
-EXPORT_SYMBOL_GPL(snd_array_free);
+EXPORT_SYMBOL_GPL(snd_hda_bus_reset);
 
 /**
  * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer

sound/pci/hda/hda_codec.h

@@ -21,41 +21,14 @@
 #ifndef __SOUND_HDA_CODEC_H
 #define __SOUND_HDA_CODEC_H
 
+#include <linux/kref.h>
 #include <sound/info.h>
 #include <sound/control.h>
 #include <sound/pcm.h>
 #include <sound/hwdep.h>
+#include <sound/hdaudio.h>
 #include <sound/hda_verbs.h>
-
-/*
- * generic arrays
- */
-struct snd_array {
-	unsigned int used;
-	unsigned int alloced;
-	unsigned int elem_size;
-	unsigned int alloc_align;
-	void *list;
-};
-
-void *snd_array_new(struct snd_array *array);
-void snd_array_free(struct snd_array *array);
-static inline void snd_array_init(struct snd_array *array, unsigned int size,
-				  unsigned int align)
-{
-	array->elem_size = size;
-	array->alloc_align = align;
-}
-
-static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
-{
-	return array->list + idx * array->elem_size;
-}
-
-static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
-{
-	return (unsigned long)(ptr - array->list) / array->elem_size;
-}
+#include <sound/hda_regmap.h>
 
 /*
  * Structures
@@ -66,10 +39,6 @@ struct hda_beep;
 struct hda_codec;
 struct hda_pcm;
 struct hda_pcm_stream;
-struct hda_bus_unsolicited;
-
-/* NID type */
-typedef u16 hda_nid_t;
 
 /* bus operators */
 struct hda_bus_ops {
@@ -84,10 +53,6 @@ struct hda_bus_ops {
 			  struct hda_pcm *pcm);
 	/* reset bus for retry verb */
 	void (*bus_reset)(struct hda_bus *bus);
-#ifdef CONFIG_PM
-	/* notify power-up/down from codec to controller */
-	void (*pm_notify)(struct hda_bus *bus, bool power_up);
-#endif
 #ifdef CONFIG_SND_HDA_DSP_LOADER
 	/* prepare DSP transfer */
 	int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
@@ -101,15 +66,6 @@ struct hda_bus_ops {
 #endif
 };
 
-/* template to pass to the bus constructor */
-struct hda_bus_template {
-	void *private_data;
-	struct pci_dev *pci;
-	const char *modelname;
-	int *power_save;
-	struct hda_bus_ops ops;
-};
-
 /*
  * codec bus
  *
@@ -117,42 +73,28 @@ struct hda_bus_template {
  * A hda_bus contains several codecs in the list codec_list.
  */
 struct hda_bus {
+	struct hdac_bus core;
+
 	struct snd_card *card;
 
-	/* copied from template */
 	void *private_data;
 	struct pci_dev *pci;
 	const char *modelname;
-	int *power_save;
 	struct hda_bus_ops ops;
 
-	/* codec linked list */
-	struct list_head codec_list;
-	unsigned int num_codecs;
-	/* link caddr -> codec */
-	struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
-
-	struct mutex cmd_mutex;
 	struct mutex prepare_mutex;
 
-	/* unsolicited event queue */
-	struct hda_bus_unsolicited *unsol;
-	char workq_name[16];
-	struct workqueue_struct *workq;	/* common workqueue for codecs */
-
 	/* assigned PCMs */
 	DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 
 	/* misc op flags */
 	unsigned int needs_damn_long_delay :1;
 	unsigned int allow_bus_reset:1;	/* allow bus reset at fatal error */
-	unsigned int sync_write:1;	/* sync after verb write */
 	/* status for codec/controller */
 	unsigned int shutdown :1;	/* being unloaded */
 	unsigned int rirb_error:1;	/* error in codec communication */
 	unsigned int response_reset:1;	/* controller was reset */
 	unsigned int in_reset:1;	/* during reset operation */
-	unsigned int power_keep_link_on:1; /* don't power off HDA link */
 	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
 
 	int primary_dig_out_type;	/* primary digital out PCM type */
@@ -175,15 +117,22 @@ struct hda_codec_preset {
 	int (*patch)(struct hda_codec *codec);
 };
 	
-struct hda_codec_preset_list {
+#define HDA_CODEC_ID_GENERIC_HDMI	0x00000101
+#define HDA_CODEC_ID_GENERIC		0x00000201
+
+struct hda_codec_driver {
+	struct hdac_driver core;
 	const struct hda_codec_preset *preset;
-	struct module *owner;
-	struct list_head list;
 };
 
-/* initial hook */
-int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
-int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);
+int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
+			       struct module *owner);
+#define hda_codec_driver_register(drv) \
+	__hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
+void hda_codec_driver_unregister(struct hda_codec_driver *drv);
+#define module_hda_codec_driver(drv) \
+	module_driver(drv, hda_codec_driver_register, \
+		      hda_codec_driver_unregister)
 
 /* ops set by the preset patch */
 struct hda_codec_ops {
@@ -200,25 +149,7 @@ struct hda_codec_ops {
 	int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 #endif
 	void (*reboot_notify)(struct hda_codec *codec);
-};
-
-/* record for amp information cache */
-struct hda_cache_head {
-	u32 key:31;		/* hash key */
-	u32 dirty:1;
-	u16 val;		/* assigned value */
-	u16 next;
-};
-
-struct hda_amp_info {
-	struct hda_cache_head head;
-	u32 amp_caps;		/* amp capabilities */
-	u16 vol[2];		/* current volume & mute */
-};
-
-struct hda_cache_rec {
-	u16 hash[64];			/* hash table for index */
-	struct snd_array buf;		/* record entries */
+	void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
 };
 
 /* PCM callbacks */
@@ -267,41 +198,29 @@ struct hda_pcm {
 	int device;		/* device number to assign */
 	struct snd_pcm *pcm;	/* assigned PCM instance */
 	bool own_chmap;		/* codec driver provides own channel maps */
+	/* private: */
+	struct hda_codec *codec;
+	struct kref kref;
+	struct list_head list;
 };
 
 /* codec information */
 struct hda_codec {
-	struct device dev;
+	struct hdac_device core;
 	struct hda_bus *bus;
+	struct snd_card *card;
 	unsigned int addr;	/* codec addr*/
-	struct list_head list;	/* list point */
-
-	hda_nid_t afg;	/* AFG node id */
-	hda_nid_t mfg;	/* MFG node id */
-
-	/* ids */
-	u8 afg_function_id;
-	u8 mfg_function_id;
-	u8 afg_unsol;
-	u8 mfg_unsol;
-	u32 vendor_id;
-	u32 subsystem_id;
-	u32 revision_id;
+	u32 probe_id; /* overridden id for probing */
 
 	/* detected preset */
 	const struct hda_codec_preset *preset;
-	struct module *owner;
-	int (*parser)(struct hda_codec *codec);
-	const char *vendor_name;	/* codec vendor name */
-	const char *chip_name;		/* codec chip name */
 	const char *modelname;	/* model name for preset */
 
 	/* set by patch */
 	struct hda_codec_ops patch_ops;
 
 	/* PCM to create, set by patch_ops.build_pcms callback */
-	unsigned int num_pcms;
-	struct hda_pcm *pcm_info;
+	struct list_head pcm_list_head;
 
 	/* codec specific info */
 	void *spec;
@@ -311,21 +230,15 @@ struct hda_codec {
 	unsigned int beep_mode;
 
 	/* widget capabilities cache */
-	unsigned int num_nodes;
-	hda_nid_t start_nid;
 	u32 *wcaps;
 
 	struct snd_array mixers;	/* list of assigned mixer elements */
 	struct snd_array nids;		/* list of mapped mixer elements */
 
-	struct hda_cache_rec amp_cache;	/* cache for amp access */
-	struct hda_cache_rec cmd_cache;	/* cache for other commands */
-
 	struct list_head conn_list;	/* linked-list of connection-list */
 
 	struct mutex spdif_mutex;
 	struct mutex control_mutex;
-	struct mutex hash_mutex;
 	struct snd_array spdif_out;
 	unsigned int spdif_in_enable;	/* SPDIF input enable? */
 	const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
@@ -345,6 +258,8 @@ struct hda_codec {
 #endif
 
 	/* misc flags */
+	unsigned int in_freeing:1; /* being released */
+	unsigned int registered:1; /* codec was registered */
 	unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 					     * status change
 					     * (e.g. Realtek codecs)
@@ -362,22 +277,14 @@ struct hda_codec {
 	unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 	unsigned int inv_jack_detect:1;	/* broken h/w: inverted detection bit */
 	unsigned int pcm_format_first:1; /* PCM format must be set first */
-	unsigned int epss:1;		/* supporting EPSS? */
 	unsigned int cached_write:1;	/* write only to caches */
 	unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
 	unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
+	unsigned int power_save_node:1; /* advanced PM for each widget */
 #ifdef CONFIG_PM
-	unsigned int power_on :1;	/* current (global) power-state */
-	unsigned int d3_stop_clk:1;	/* support D3 operation without BCLK */
-	unsigned int pm_up_notified:1;	/* PM notified to controller */
-	unsigned int in_pm:1;		/* suspend/resume being performed */
-	int power_transition;	/* power-state in transition */
-	int power_count;	/* current (global) power refcount */
-	struct delayed_work power_work; /* delayed task for powerdown */
 	unsigned long power_on_acct;
 	unsigned long power_off_acct;
 	unsigned long power_jiffies;
-	spinlock_t power_lock;
 #endif
 
 	/* filter the requested power state per nid */
@@ -409,10 +316,11 @@ struct hda_codec {
 	struct snd_array verbs;
 };
 
-/* direction */
-enum {
-	HDA_INPUT, HDA_OUTPUT
-};
+#define dev_to_hda_codec(_dev)	container_of(_dev, struct hda_codec, core.dev)
+#define hda_codec_dev(_dev)	(&(_dev)->core.dev)
+
+#define list_for_each_codec(c, bus) \
+	list_for_each_entry(c, &(bus)->core.codec_list, core.list)
 
 /* snd_hda_codec_read/write optional flags */
 #define HDA_RW_NO_RESPONSE_FALLBACK	(1 << 0)
@@ -420,10 +328,9 @@ enum {
 /*
  * constructors
  */
-int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
-		    struct hda_bus **busp);
-int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
-		      struct hda_codec **codecp);
+int snd_hda_bus_new(struct snd_card *card, struct hda_bus **busp);
+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_configure(struct hda_codec *codec);
 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 
@@ -436,9 +343,9 @@ unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 			unsigned int verb, unsigned int parm);
 #define snd_hda_param_read(codec, nid, param) \
-	snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
-int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
-			  hda_nid_t *start_id);
+	snd_hdac_read_parm(&(codec)->core, nid, param)
+#define snd_hda_get_sub_nodes(codec, nid, start_nid) \
+	snd_hdac_get_sub_nodes(&(codec)->core, nid, start_nid)
 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 			    hda_nid_t *conn_list, int max_conns);
 static inline int
@@ -446,9 +353,12 @@ snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
 {
 	return snd_hda_get_connections(codec, nid, NULL, 0);
 }
-int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
-int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
-			    hda_nid_t *conn_list, int max_conns);
+
+#define snd_hda_get_raw_connections(codec, nid, list, max_conns) \
+	snd_hdac_get_connections(&(codec)->core, nid, list, max_conns)
+#define snd_hda_get_num_raw_conns(codec, nid) \
+	snd_hdac_get_connections(&(codec)->core, nid, NULL, 0);
+
 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
 			  const hda_nid_t **listp);
 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
@@ -470,18 +380,22 @@ void snd_hda_sequence_write(struct hda_codec *codec,
 			    const struct hda_verb *seq);
 
 /* unsolicited event */
-int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
+static inline void
+snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
+{
+	snd_hdac_bus_queue_event(&bus->core, res, res_ex);
+}
 
 /* cached write */
-int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
-			      int flags, unsigned int verb, unsigned int parm);
-void snd_hda_sequence_write_cache(struct hda_codec *codec,
-				  const struct hda_verb *seq);
-int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
-			      int flags, unsigned int verb, unsigned int parm);
-void snd_hda_codec_resume_cache(struct hda_codec *codec);
-/* both for cmd & amp caches */
-void snd_hda_codec_flush_cache(struct hda_codec *codec);
+static inline int
+snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
+			  int flags, unsigned int verb, unsigned int parm)
+{
+	return snd_hdac_regmap_write(&codec->core, nid, verb, parm);
+}
+
+#define snd_hda_codec_update_cache(codec, nid, flags, verb, parm) \
+	snd_hda_codec_write_cache(codec, nid, flags, verb, parm)
 
 /* the struct for codec->pin_configs */
 struct hda_pincfg {
@@ -512,15 +426,24 @@ void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
 /*
  * Mixer
  */
-int snd_hda_build_controls(struct hda_bus *bus);
 int snd_hda_codec_build_controls(struct hda_codec *codec);
 
 /*
  * PCM
  */
-int snd_hda_build_pcms(struct hda_bus *bus);
+int snd_hda_codec_parse_pcms(struct hda_codec *codec);
 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 
+__printf(2, 3)
+struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
+				      const char *fmt, ...);
+
+static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
+{
+	kref_get(&pcm->kref);
+}
+void snd_hda_codec_pcm_put(struct hda_pcm *pcm);
+
 int snd_hda_codec_prepare(struct hda_codec *codec,
 			  struct hda_pcm_stream *hinfo,
 			  unsigned int stream,
@@ -552,20 +475,17 @@ extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
  * Misc
  */
 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
-void snd_hda_bus_reboot_notify(struct hda_bus *bus);
 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 				    unsigned int power_state);
 
 int snd_hda_lock_devices(struct hda_bus *bus);
 void snd_hda_unlock_devices(struct hda_bus *bus);
+void snd_hda_bus_reset(struct hda_bus *bus);
 
 /*
  * power management
  */
-#ifdef CONFIG_PM
-int snd_hda_suspend(struct hda_bus *bus);
-int snd_hda_resume(struct hda_bus *bus);
-#endif
+extern const struct dev_pm_ops hda_codec_driver_pm;
 
 static inline
 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
@@ -587,65 +507,17 @@ const char *snd_hda_get_jack_location(u32 cfg);
 /*
  * power saving
  */
+#define snd_hda_power_up(codec)		snd_hdac_power_up(&(codec)->core)
+#define snd_hda_power_up_pm(codec)	snd_hdac_power_up_pm(&(codec)->core)
+#define snd_hda_power_down(codec)	snd_hdac_power_down(&(codec)->core)
+#define snd_hda_power_down_pm(codec)	snd_hdac_power_down_pm(&(codec)->core)
 #ifdef CONFIG_PM
-void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait);
+void snd_hda_set_power_save(struct hda_bus *bus, int delay);
 void snd_hda_update_power_acct(struct hda_codec *codec);
 #else
-static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
-				      bool d3wait) {}
+static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
 #endif
 
-/**
- * snd_hda_power_up - Power-up the codec
- * @codec: HD-audio codec
- *
- * Increment the power-up counter and power up the hardware really when
- * not turned on yet.
- */
-static inline void snd_hda_power_up(struct hda_codec *codec)
-{
-	snd_hda_power_save(codec, 1, false);
-}
-
-/**
- * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
- *   D3 transition to complete.  This differs from snd_hda_power_up() when
- *   power_transition == -1.  snd_hda_power_up sees this case as a nop,
- *   snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
- *   back up.
- * @codec: HD-audio codec
- *
- * Cancel any power down operation hapenning on the work queue, then power up.
- */
-static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
-{
-	snd_hda_power_save(codec, 1, true);
-}
-
-/**
- * snd_hda_power_down - Power-down the codec
- * @codec: HD-audio codec
- *
- * Decrement the power-up counter and schedules the power-off work if
- * the counter rearches to zero.
- */
-static inline void snd_hda_power_down(struct hda_codec *codec)
-{
-	snd_hda_power_save(codec, -1, false);
-}
-
-/**
- * snd_hda_power_sync - Synchronize the power-save status
- * @codec: HD-audio codec
- *
- * Synchronize the actual power state with the power account;
- * called when power_save parameter is changed
- */
-static inline void snd_hda_power_sync(struct hda_codec *codec)
-{
-	snd_hda_power_save(codec, 0, false);
-}
-
 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 /*
  * patch firmware

sound/pci/hda/hda_controller.c

@@ -27,10 +27,8 @@
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
-#include <linux/reboot.h>
 #include <sound/core.h>
 #include <sound/initval.h>
-#include "hda_priv.h"
 #include "hda_controller.h"
 
 #define CREATE_TRACE_POINTS
@@ -259,11 +257,18 @@ static void azx_timecounter_init(struct snd_pcm_substream *substream,
 		tc->cycle_last = last;
 }
 
+static inline struct hda_pcm_stream *
+to_hda_pcm_stream(struct snd_pcm_substream *substream)
+{
+	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
+	return &apcm->info->stream[substream->stream];
+}
+
 static u64 azx_adjust_codec_delay(struct snd_pcm_substream *substream,
 				u64 nsec)
 {
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
-	struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 	u64 codec_frames, codec_nsecs;
 
 	if (!hinfo->ops.get_delay)
@@ -399,7 +404,7 @@ static int azx_setup_periods(struct azx *chip,
 static int azx_pcm_close(struct snd_pcm_substream *substream)
 {
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
-	struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 	struct azx *chip = apcm->chip;
 	struct azx_dev *azx_dev = get_azx_dev(substream);
 	unsigned long flags;
@@ -410,9 +415,11 @@ static int azx_pcm_close(struct snd_pcm_substream *substream)
 	azx_dev->running = 0;
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 	azx_release_device(azx_dev);
-	hinfo->ops.close(hinfo, apcm->codec, substream);
+	if (hinfo->ops.close)
+		hinfo->ops.close(hinfo, apcm->codec, substream);
 	snd_hda_power_down(apcm->codec);
 	mutex_unlock(&chip->open_mutex);
+	snd_hda_codec_pcm_put(apcm->info);
 	return 0;
 }
 
@@ -441,7 +448,7 @@ static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
 	struct azx_dev *azx_dev = get_azx_dev(substream);
 	struct azx *chip = apcm->chip;
-	struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 	int err;
 
 	/* reset BDL address */
@@ -468,7 +475,7 @@ static int azx_pcm_prepare(struct snd_pcm_substream *substream)
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
 	struct azx *chip = apcm->chip;
 	struct azx_dev *azx_dev = get_azx_dev(substream);
-	struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	unsigned int bufsize, period_bytes, format_val, stream_tag;
 	int err;
@@ -708,7 +715,7 @@ unsigned int azx_get_position(struct azx *chip,
 
 	if (substream->runtime) {
 		struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
-		struct hda_pcm_stream *hinfo = apcm->hinfo[stream];
+		struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 
 		if (chip->get_delay[stream])
 			delay += chip->get_delay[stream](chip, azx_dev, pos);
@@ -732,17 +739,32 @@ static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
 			       azx_get_position(chip, azx_dev));
 }
 
-static int azx_get_wallclock_tstamp(struct snd_pcm_substream *substream,
-				struct timespec *ts)
+static int azx_get_time_info(struct snd_pcm_substream *substream,
+			struct timespec *system_ts, struct timespec *audio_ts,
+			struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+			struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
 {
 	struct azx_dev *azx_dev = get_azx_dev(substream);
 	u64 nsec;
 
-	nsec = timecounter_read(&azx_dev->azx_tc);
-	nsec = div_u64(nsec, 3); /* can be optimized */
-	nsec = azx_adjust_codec_delay(substream, nsec);
+	if ((substream->runtime->hw.info & SNDRV_PCM_INFO_HAS_LINK_ATIME) &&
+		(audio_tstamp_config->type_requested == SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK)) {
+
+		snd_pcm_gettime(substream->runtime, system_ts);
 
-	*ts = ns_to_timespec(nsec);
+		nsec = timecounter_read(&azx_dev->azx_tc);
+		nsec = div_u64(nsec, 3); /* can be optimized */
+		if (audio_tstamp_config->report_delay)
+			nsec = azx_adjust_codec_delay(substream, nsec);
+
+		*audio_ts = ns_to_timespec(nsec);
+
+		audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK;
+		audio_tstamp_report->accuracy_report = 1; /* rest of structure is valid */
+		audio_tstamp_report->accuracy = 42; /* 24 MHz WallClock == 42ns resolution */
+
+	} else
+		audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT;
 
 	return 0;
 }
@@ -756,7 +778,8 @@ static struct snd_pcm_hardware azx_pcm_hw = {
 				 /* SNDRV_PCM_INFO_RESUME |*/
 				 SNDRV_PCM_INFO_PAUSE |
 				 SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_HAS_WALL_CLOCK |
+				 SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */
+				 SNDRV_PCM_INFO_HAS_LINK_ATIME |
 				 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_48000,
@@ -775,7 +798,7 @@ static struct snd_pcm_hardware azx_pcm_hw = {
 static int azx_pcm_open(struct snd_pcm_substream *substream)
 {
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
-	struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
 	struct azx *chip = apcm->chip;
 	struct azx_dev *azx_dev;
 	struct snd_pcm_runtime *runtime = substream->runtime;
@@ -783,11 +806,12 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 	int err;
 	int buff_step;
 
+	snd_hda_codec_pcm_get(apcm->info);
 	mutex_lock(&chip->open_mutex);
 	azx_dev = azx_assign_device(chip, substream);
 	if (azx_dev == NULL) {
-		mutex_unlock(&chip->open_mutex);
-		return -EBUSY;
+		err = -EBUSY;
+		goto unlock;
 	}
 	runtime->hw = azx_pcm_hw;
 	runtime->hw.channels_min = hinfo->channels_min;
@@ -821,13 +845,14 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 				   buff_step);
 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
 				   buff_step);
-	snd_hda_power_up_d3wait(apcm->codec);
-	err = hinfo->ops.open(hinfo, apcm->codec, substream);
+	snd_hda_power_up(apcm->codec);
+	if (hinfo->ops.open)
+		err = hinfo->ops.open(hinfo, apcm->codec, substream);
+	else
+		err = -ENODEV;
 	if (err < 0) {
 		azx_release_device(azx_dev);
-		snd_hda_power_down(apcm->codec);
-		mutex_unlock(&chip->open_mutex);
-		return err;
+		goto powerdown;
 	}
 	snd_pcm_limit_hw_rates(runtime);
 	/* sanity check */
@@ -836,16 +861,18 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 	    snd_BUG_ON(!runtime->hw.formats) ||
 	    snd_BUG_ON(!runtime->hw.rates)) {
 		azx_release_device(azx_dev);
-		hinfo->ops.close(hinfo, apcm->codec, substream);
-		snd_hda_power_down(apcm->codec);
-		mutex_unlock(&chip->open_mutex);
-		return -EINVAL;
+		if (hinfo->ops.close)
+			hinfo->ops.close(hinfo, apcm->codec, substream);
+		err = -EINVAL;
+		goto powerdown;
 	}
 
-	/* disable WALLCLOCK timestamps for capture streams
+	/* disable LINK_ATIME timestamps for capture streams
 	   until we figure out how to handle digital inputs */
-	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
-		runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK;
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+		runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK; /* legacy */
+		runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_LINK_ATIME;
+	}
 
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	azx_dev->substream = substream;
@@ -856,6 +883,13 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 	snd_pcm_set_sync(substream);
 	mutex_unlock(&chip->open_mutex);
 	return 0;
+
+ powerdown:
+	snd_hda_power_down(apcm->codec);
+ unlock:
+	mutex_unlock(&chip->open_mutex);
+	snd_hda_codec_pcm_put(apcm->info);
+	return err;
 }
 
 static int azx_pcm_mmap(struct snd_pcm_substream *substream,
@@ -877,7 +911,7 @@ static struct snd_pcm_ops azx_pcm_ops = {
 	.prepare = azx_pcm_prepare,
 	.trigger = azx_pcm_trigger,
 	.pointer = azx_pcm_pointer,
-	.wall_clock =  azx_get_wallclock_tstamp,
+	.get_time_info =  azx_get_time_info,
 	.mmap = azx_pcm_mmap,
 	.page = snd_pcm_sgbuf_ops_page,
 };
@@ -887,6 +921,7 @@ static void azx_pcm_free(struct snd_pcm *pcm)
 	struct azx_pcm *apcm = pcm->private_data;
 	if (apcm) {
 		list_del(&apcm->list);
+		apcm->info->pcm = NULL;
 		kfree(apcm);
 	}
 }
@@ -923,6 +958,7 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
 	apcm->chip = chip;
 	apcm->pcm = pcm;
 	apcm->codec = codec;
+	apcm->info = cpcm;
 	pcm->private_data = apcm;
 	pcm->private_free = azx_pcm_free;
 	if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
@@ -930,7 +966,6 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
 	list_add_tail(&apcm->list, &chip->pcm_list);
 	cpcm->pcm = pcm;
 	for (s = 0; s < 2; s++) {
-		apcm->hinfo[s] = &cpcm->stream[s];
 		if (cpcm->stream[s].substreams)
 			snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
 	}
@@ -941,9 +976,6 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
 					      chip->card->dev,
 					      size, MAX_PREALLOC_SIZE);
-	/* link to codec */
-	for (s = 0; s < 2; s++)
-		pcm->streams[s].dev.parent = &codec->dev;
 	return 0;
 }
 
@@ -952,14 +984,9 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
  */
 static int azx_alloc_cmd_io(struct azx *chip)
 {
-	int err;
-
 	/* single page (at least 4096 bytes) must suffice for both ringbuffes */
-	err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
-					 PAGE_SIZE, &chip->rb);
-	if (err < 0)
-		dev_err(chip->card->dev, "cannot allocate CORB/RIRB\n");
-	return err;
+	return chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
+					  PAGE_SIZE, &chip->rb);
 }
 
 static void azx_init_cmd_io(struct azx *chip)
@@ -1445,7 +1472,6 @@ static void azx_load_dsp_cleanup(struct hda_bus *bus,
 int azx_alloc_stream_pages(struct azx *chip)
 {
 	int i, err;
-	struct snd_card *card = chip->card;
 
 	for (i = 0; i < chip->num_streams; i++) {
 		dsp_lock_init(&chip->azx_dev[i]);
@@ -1453,18 +1479,14 @@ int azx_alloc_stream_pages(struct azx *chip)
 		err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
 						 BDL_SIZE,
 						 &chip->azx_dev[i].bdl);
-		if (err < 0) {
-			dev_err(card->dev, "cannot allocate BDL\n");
+		if (err < 0)
 			return -ENOMEM;
-		}
 	}
 	/* allocate memory for the position buffer */
 	err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
 					 chip->num_streams * 8, &chip->posbuf);
-	if (err < 0) {
-		dev_err(card->dev, "cannot allocate posbuf\n");
+	if (err < 0)
 		return -ENOMEM;
-	}
 
 	/* allocate CORB/RIRB */
 	err = azx_alloc_cmd_io(chip);
@@ -1676,7 +1698,7 @@ irqreturn_t azx_interrupt(int irq, void *dev_id)
 	int i;
 
 #ifdef CONFIG_PM
-	if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
+	if (azx_has_pm_runtime(chip))
 		if (!pm_runtime_active(chip->card->dev))
 			return IRQ_NONE;
 #endif
@@ -1742,12 +1764,12 @@ static int probe_codec(struct azx *chip, int addr)
 		(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
 	unsigned int res;
 
-	mutex_lock(&chip->bus->cmd_mutex);
+	mutex_lock(&chip->bus->core.cmd_mutex);
 	chip->probing = 1;
 	azx_send_cmd(chip->bus, cmd);
 	res = azx_get_response(chip->bus, addr);
 	chip->probing = 0;
-	mutex_unlock(&chip->bus->cmd_mutex);
+	mutex_unlock(&chip->bus->core.cmd_mutex);
 	if (res == -1)
 		return -EIO;
 	dev_dbg(chip->card->dev, "codec #%d probed OK\n", addr);
@@ -1761,34 +1783,11 @@ static void azx_bus_reset(struct hda_bus *bus)
 	bus->in_reset = 1;
 	azx_stop_chip(chip);
 	azx_init_chip(chip, true);
-#ifdef CONFIG_PM
-	if (chip->initialized) {
-		struct azx_pcm *p;
-		list_for_each_entry(p, &chip->pcm_list, list)
-			snd_pcm_suspend_all(p->pcm);
-		snd_hda_suspend(chip->bus);
-		snd_hda_resume(chip->bus);
-	}
-#endif
+	if (chip->initialized)
+		snd_hda_bus_reset(chip->bus);
 	bus->in_reset = 0;
 }
 
-#ifdef CONFIG_PM
-/* power-up/down the controller */
-static void azx_power_notify(struct hda_bus *bus, bool power_up)
-{
-	struct azx *chip = bus->private_data;
-
-	if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
-		return;
-
-	if (power_up)
-		pm_runtime_get_sync(chip->card->dev);
-	else
-		pm_runtime_put_sync(chip->card->dev);
-}
-#endif
-
 static int get_jackpoll_interval(struct azx *chip)
 {
 	int i;
@@ -1810,41 +1809,59 @@ static int get_jackpoll_interval(struct azx *chip)
 	return j;
 }
 
-/* Codec initialization */
-int azx_codec_create(struct azx *chip, const char *model,
-		     unsigned int max_slots,
-		     int *power_save_to)
-{
-	struct hda_bus_template bus_temp;
-	int c, codecs, err;
-
-	memset(&bus_temp, 0, sizeof(bus_temp));
-	bus_temp.private_data = chip;
-	bus_temp.modelname = model;
-	bus_temp.pci = chip->pci;
-	bus_temp.ops.command = azx_send_cmd;
-	bus_temp.ops.get_response = azx_get_response;
-	bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
-	bus_temp.ops.bus_reset = azx_bus_reset;
-#ifdef CONFIG_PM
-	bus_temp.power_save = power_save_to;
-	bus_temp.ops.pm_notify = azx_power_notify;
-#endif
+static struct hda_bus_ops bus_ops = {
+	.command = azx_send_cmd,
+	.get_response = azx_get_response,
+	.attach_pcm = azx_attach_pcm_stream,
+	.bus_reset = azx_bus_reset,
 #ifdef CONFIG_SND_HDA_DSP_LOADER
-	bus_temp.ops.load_dsp_prepare = azx_load_dsp_prepare;
-	bus_temp.ops.load_dsp_trigger = azx_load_dsp_trigger;
-	bus_temp.ops.load_dsp_cleanup = azx_load_dsp_cleanup;
+	.load_dsp_prepare = azx_load_dsp_prepare,
+	.load_dsp_trigger = azx_load_dsp_trigger,
+	.load_dsp_cleanup = azx_load_dsp_cleanup,
 #endif
+};
+
+/* HD-audio bus initialization */
+int azx_bus_create(struct azx *chip, const char *model)
+{
+	struct hda_bus *bus;
+	int err;
 
-	err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
+	err = snd_hda_bus_new(chip->card, &bus);
 	if (err < 0)
 		return err;
 
+	chip->bus = bus;
+	bus->private_data = chip;
+	bus->pci = chip->pci;
+	bus->modelname = model;
+	bus->ops = bus_ops;
+
 	if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
-		chip->bus->needs_damn_long_delay = 1;
+		bus->needs_damn_long_delay = 1;
+	}
+
+	/* AMD chipsets often cause the communication stalls upon certain
+	 * sequence like the pin-detection.  It seems that forcing the synced
+	 * access works around the stall.  Grrr...
+	 */
+	if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
+		dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
+		bus->core.sync_write = 1;
+		bus->allow_bus_reset = 1;
 	}
 
+	return 0;
+}
+EXPORT_SYMBOL_GPL(azx_bus_create);
+
+/* Probe codecs */
+int azx_probe_codecs(struct azx *chip, unsigned int max_slots)
+{
+	struct hda_bus *bus = chip->bus;
+	int c, codecs, err;
+
 	codecs = 0;
 	if (!max_slots)
 		max_slots = AZX_DEFAULT_CODECS;
@@ -1872,21 +1889,11 @@ int azx_codec_create(struct azx *chip, const char *model,
 		}
 	}
 
-	/* AMD chipsets often cause the communication stalls upon certain
-	 * sequence like the pin-detection.  It seems that forcing the synced
-	 * access works around the stall.  Grrr...
-	 */
-	if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
-		dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
-		chip->bus->sync_write = 1;
-		chip->bus->allow_bus_reset = 1;
-	}
-
 	/* Then create codec instances */
 	for (c = 0; c < max_slots; c++) {
 		if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
 			struct hda_codec *codec;
-			err = snd_hda_codec_new(chip->bus, c, &codec);
+			err = snd_hda_codec_new(bus, bus->card, c, &codec);
 			if (err < 0)
 				continue;
 			codec->jackpoll_interval = get_jackpoll_interval(chip);
@@ -1900,26 +1907,19 @@ int azx_codec_create(struct azx *chip, const char *model,
 	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(azx_codec_create);
+EXPORT_SYMBOL_GPL(azx_probe_codecs);
 
 /* configure each codec instance */
 int azx_codec_configure(struct azx *chip)
 {
 	struct hda_codec *codec;
-	list_for_each_entry(codec, &chip->bus->codec_list, list) {
+	list_for_each_codec(codec, chip->bus) {
 		snd_hda_codec_configure(codec);
 	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(azx_codec_configure);
 
-/* mixer creation - all stuff is implemented in hda module */
-int azx_mixer_create(struct azx *chip)
-{
-	return snd_hda_build_controls(chip->bus);
-}
-EXPORT_SYMBOL_GPL(azx_mixer_create);
-
 
 static bool is_input_stream(struct azx *chip, unsigned char index)
 {
@@ -1966,30 +1966,5 @@ int azx_init_stream(struct azx *chip)
 }
 EXPORT_SYMBOL_GPL(azx_init_stream);
 
-/*
- * reboot notifier for hang-up problem at power-down
- */
-static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
-{
-	struct azx *chip = container_of(nb, struct azx, reboot_notifier);
-	snd_hda_bus_reboot_notify(chip->bus);
-	azx_stop_chip(chip);
-	return NOTIFY_OK;
-}
-
-void azx_notifier_register(struct azx *chip)
-{
-	chip->reboot_notifier.notifier_call = azx_halt;
-	register_reboot_notifier(&chip->reboot_notifier);
-}
-EXPORT_SYMBOL_GPL(azx_notifier_register);
-
-void azx_notifier_unregister(struct azx *chip)
-{
-	if (chip->reboot_notifier.notifier_call)
-		unregister_reboot_notifier(&chip->reboot_notifier);
-}
-EXPORT_SYMBOL_GPL(azx_notifier_unregister);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Common HDA driver functions");

sound/pci/hda/hda_controller.h

@@ -15,10 +15,396 @@
 #ifndef __SOUND_HDA_CONTROLLER_H
 #define __SOUND_HDA_CONTROLLER_H
 
+#include <linux/timecounter.h>
+#include <linux/interrupt.h>
 #include <sound/core.h>
+#include <sound/pcm.h>
 #include <sound/initval.h>
 #include "hda_codec.h"
-#include "hda_priv.h"
+
+/*
+ * registers
+ */
+#define AZX_REG_GCAP			0x00
+#define   AZX_GCAP_64OK		(1 << 0)   /* 64bit address support */
+#define   AZX_GCAP_NSDO		(3 << 1)   /* # of serial data out signals */
+#define   AZX_GCAP_BSS		(31 << 3)  /* # of bidirectional streams */
+#define   AZX_GCAP_ISS		(15 << 8)  /* # of input streams */
+#define   AZX_GCAP_OSS		(15 << 12) /* # of output streams */
+#define AZX_REG_VMIN			0x02
+#define AZX_REG_VMAJ			0x03
+#define AZX_REG_OUTPAY			0x04
+#define AZX_REG_INPAY			0x06
+#define AZX_REG_GCTL			0x08
+#define   AZX_GCTL_RESET	(1 << 0)   /* controller reset */
+#define   AZX_GCTL_FCNTRL	(1 << 1)   /* flush control */
+#define   AZX_GCTL_UNSOL	(1 << 8)   /* accept unsol. response enable */
+#define AZX_REG_WAKEEN			0x0c
+#define AZX_REG_STATESTS		0x0e
+#define AZX_REG_GSTS			0x10
+#define   AZX_GSTS_FSTS		(1 << 1)   /* flush status */
+#define AZX_REG_INTCTL			0x20
+#define AZX_REG_INTSTS			0x24
+#define AZX_REG_WALLCLK			0x30	/* 24Mhz source */
+#define AZX_REG_OLD_SSYNC		0x34	/* SSYNC for old ICH */
+#define AZX_REG_SSYNC			0x38
+#define AZX_REG_CORBLBASE		0x40
+#define AZX_REG_CORBUBASE		0x44
+#define AZX_REG_CORBWP			0x48
+#define AZX_REG_CORBRP			0x4a
+#define   AZX_CORBRP_RST	(1 << 15)  /* read pointer reset */
+#define AZX_REG_CORBCTL			0x4c
+#define   AZX_CORBCTL_RUN	(1 << 1)   /* enable DMA */
+#define   AZX_CORBCTL_CMEIE	(1 << 0)   /* enable memory error irq */
+#define AZX_REG_CORBSTS			0x4d
+#define   AZX_CORBSTS_CMEI	(1 << 0)   /* memory error indication */
+#define AZX_REG_CORBSIZE		0x4e
+
+#define AZX_REG_RIRBLBASE		0x50
+#define AZX_REG_RIRBUBASE		0x54
+#define AZX_REG_RIRBWP			0x58
+#define   AZX_RIRBWP_RST	(1 << 15)  /* write pointer reset */
+#define AZX_REG_RINTCNT			0x5a
+#define AZX_REG_RIRBCTL			0x5c
+#define   AZX_RBCTL_IRQ_EN	(1 << 0)   /* enable IRQ */
+#define   AZX_RBCTL_DMA_EN	(1 << 1)   /* enable DMA */
+#define   AZX_RBCTL_OVERRUN_EN	(1 << 2)   /* enable overrun irq */
+#define AZX_REG_RIRBSTS			0x5d
+#define   AZX_RBSTS_IRQ		(1 << 0)   /* response irq */
+#define   AZX_RBSTS_OVERRUN	(1 << 2)   /* overrun irq */
+#define AZX_REG_RIRBSIZE		0x5e
+
+#define AZX_REG_IC			0x60
+#define AZX_REG_IR			0x64
+#define AZX_REG_IRS			0x68
+#define   AZX_IRS_VALID		(1<<1)
+#define   AZX_IRS_BUSY		(1<<0)
+
+#define AZX_REG_DPLBASE			0x70
+#define AZX_REG_DPUBASE			0x74
+#define   AZX_DPLBASE_ENABLE	0x1	/* Enable position buffer */
+
+/* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
+enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
+
+/* stream register offsets from stream base */
+#define AZX_REG_SD_CTL			0x00
+#define AZX_REG_SD_STS			0x03
+#define AZX_REG_SD_LPIB			0x04
+#define AZX_REG_SD_CBL			0x08
+#define AZX_REG_SD_LVI			0x0c
+#define AZX_REG_SD_FIFOW		0x0e
+#define AZX_REG_SD_FIFOSIZE		0x10
+#define AZX_REG_SD_FORMAT		0x12
+#define AZX_REG_SD_BDLPL		0x18
+#define AZX_REG_SD_BDLPU		0x1c
+
+/* PCI space */
+#define AZX_PCIREG_TCSEL		0x44
+
+/*
+ * other constants
+ */
+
+/* max number of fragments - we may use more if allocating more pages for BDL */
+#define BDL_SIZE		4096
+#define AZX_MAX_BDL_ENTRIES	(BDL_SIZE / 16)
+#define AZX_MAX_FRAG		32
+/* max buffer size - no h/w limit, you can increase as you like */
+#define AZX_MAX_BUF_SIZE	(1024*1024*1024)
+
+/* RIRB int mask: overrun[2], response[0] */
+#define RIRB_INT_RESPONSE	0x01
+#define RIRB_INT_OVERRUN	0x04
+#define RIRB_INT_MASK		0x05
+
+/* STATESTS int mask: S3,SD2,SD1,SD0 */
+#define AZX_MAX_CODECS		8
+#define AZX_DEFAULT_CODECS	4
+#define STATESTS_INT_MASK	((1 << AZX_MAX_CODECS) - 1)
+
+/* SD_CTL bits */
+#define SD_CTL_STREAM_RESET	0x01	/* stream reset bit */
+#define SD_CTL_DMA_START	0x02	/* stream DMA start bit */
+#define SD_CTL_STRIPE		(3 << 16)	/* stripe control */
+#define SD_CTL_TRAFFIC_PRIO	(1 << 18)	/* traffic priority */
+#define SD_CTL_DIR		(1 << 19)	/* bi-directional stream */
+#define SD_CTL_STREAM_TAG_MASK	(0xf << 20)
+#define SD_CTL_STREAM_TAG_SHIFT	20
+
+/* SD_CTL and SD_STS */
+#define SD_INT_DESC_ERR		0x10	/* descriptor error interrupt */
+#define SD_INT_FIFO_ERR		0x08	/* FIFO error interrupt */
+#define SD_INT_COMPLETE		0x04	/* completion interrupt */
+#define SD_INT_MASK		(SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
+				 SD_INT_COMPLETE)
+
+/* SD_STS */
+#define SD_STS_FIFO_READY	0x20	/* FIFO ready */
+
+/* INTCTL and INTSTS */
+#define AZX_INT_ALL_STREAM	0xff	   /* all stream interrupts */
+#define AZX_INT_CTRL_EN	0x40000000 /* controller interrupt enable bit */
+#define AZX_INT_GLOBAL_EN	0x80000000 /* global interrupt enable bit */
+
+/* below are so far hardcoded - should read registers in future */
+#define AZX_MAX_CORB_ENTRIES	256
+#define AZX_MAX_RIRB_ENTRIES	256
+
+/* driver quirks (capabilities) */
+/* bits 0-7 are used for indicating driver type */
+#define AZX_DCAPS_NO_TCSEL	(1 << 8)	/* No Intel TCSEL bit */
+#define AZX_DCAPS_NO_MSI	(1 << 9)	/* No MSI support */
+#define AZX_DCAPS_SNOOP_MASK	(3 << 10)	/* snoop type mask */
+#define AZX_DCAPS_SNOOP_OFF	(1 << 12)	/* snoop default off */
+#define AZX_DCAPS_RIRB_DELAY	(1 << 13)	/* Long delay in read loop */
+#define AZX_DCAPS_RIRB_PRE_DELAY (1 << 14)	/* Put a delay before read */
+#define AZX_DCAPS_CTX_WORKAROUND (1 << 15)	/* X-Fi workaround */
+#define AZX_DCAPS_POSFIX_LPIB	(1 << 16)	/* Use LPIB as default */
+#define AZX_DCAPS_POSFIX_VIA	(1 << 17)	/* Use VIACOMBO as default */
+#define AZX_DCAPS_NO_64BIT	(1 << 18)	/* No 64bit address */
+#define AZX_DCAPS_SYNC_WRITE	(1 << 19)	/* sync each cmd write */
+#define AZX_DCAPS_OLD_SSYNC	(1 << 20)	/* Old SSYNC reg for ICH */
+#define AZX_DCAPS_NO_ALIGN_BUFSIZE (1 << 21)	/* no buffer size alignment */
+/* 22 unused */
+#define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23)	/* BDLE in 4k boundary */
+#define AZX_DCAPS_REVERSE_ASSIGN (1 << 24)	/* Assign devices in reverse order */
+#define AZX_DCAPS_COUNT_LPIB_DELAY  (1 << 25)	/* Take LPIB as delay */
+#define AZX_DCAPS_PM_RUNTIME	(1 << 26)	/* runtime PM support */
+#define AZX_DCAPS_I915_POWERWELL (1 << 27)	/* HSW i915 powerwell support */
+#define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
+#define AZX_DCAPS_NO_MSI64      (1 << 29)	/* Stick to 32-bit MSIs */
+#define AZX_DCAPS_SEPARATE_STREAM_TAG	(1 << 30) /* capture and playback use separate stream tag */
+
+enum {
+	AZX_SNOOP_TYPE_NONE,
+	AZX_SNOOP_TYPE_SCH,
+	AZX_SNOOP_TYPE_ATI,
+	AZX_SNOOP_TYPE_NVIDIA,
+};
+
+/* HD Audio class code */
+#define PCI_CLASS_MULTIMEDIA_HD_AUDIO	0x0403
+
+struct azx_dev {
+	struct snd_dma_buffer bdl; /* BDL buffer */
+	u32 *posbuf;		/* position buffer pointer */
+
+	unsigned int bufsize;	/* size of the play buffer in bytes */
+	unsigned int period_bytes; /* size of the period in bytes */
+	unsigned int frags;	/* number for period in the play buffer */
+	unsigned int fifo_size;	/* FIFO size */
+	unsigned long start_wallclk;	/* start + minimum wallclk */
+	unsigned long period_wallclk;	/* wallclk for period */
+
+	void __iomem *sd_addr;	/* stream descriptor pointer */
+
+	u32 sd_int_sta_mask;	/* stream int status mask */
+
+	/* pcm support */
+	struct snd_pcm_substream *substream;	/* assigned substream,
+						 * set in PCM open
+						 */
+	unsigned int format_val;	/* format value to be set in the
+					 * controller and the codec
+					 */
+	unsigned char stream_tag;	/* assigned stream */
+	unsigned char index;		/* stream index */
+	int assigned_key;		/* last device# key assigned to */
+
+	unsigned int opened:1;
+	unsigned int running:1;
+	unsigned int irq_pending:1;
+	unsigned int prepared:1;
+	unsigned int locked:1;
+	/*
+	 * For VIA:
+	 *  A flag to ensure DMA position is 0
+	 *  when link position is not greater than FIFO size
+	 */
+	unsigned int insufficient:1;
+	unsigned int wc_marked:1;
+	unsigned int no_period_wakeup:1;
+
+	struct timecounter  azx_tc;
+	struct cyclecounter azx_cc;
+
+	int delay_negative_threshold;
+
+#ifdef CONFIG_SND_HDA_DSP_LOADER
+	/* Allows dsp load to have sole access to the playback stream. */
+	struct mutex dsp_mutex;
+#endif
+};
+
+/* CORB/RIRB */
+struct azx_rb {
+	u32 *buf;		/* CORB/RIRB buffer
+				 * Each CORB entry is 4byte, RIRB is 8byte
+				 */
+	dma_addr_t addr;	/* physical address of CORB/RIRB buffer */
+	/* for RIRB */
+	unsigned short rp, wp;	/* read/write pointers */
+	int cmds[AZX_MAX_CODECS];	/* number of pending requests */
+	u32 res[AZX_MAX_CODECS];	/* last read value */
+};
+
+struct azx;
+
+/* Functions to read/write to hda registers. */
+struct hda_controller_ops {
+	/* Register Access */
+	void (*reg_writel)(u32 value, u32 __iomem *addr);
+	u32 (*reg_readl)(u32 __iomem *addr);
+	void (*reg_writew)(u16 value, u16 __iomem *addr);
+	u16 (*reg_readw)(u16 __iomem *addr);
+	void (*reg_writeb)(u8 value, u8 __iomem *addr);
+	u8 (*reg_readb)(u8 __iomem *addr);
+	/* Disable msi if supported, PCI only */
+	int (*disable_msi_reset_irq)(struct azx *);
+	/* Allocation ops */
+	int (*dma_alloc_pages)(struct azx *chip,
+			       int type,
+			       size_t size,
+			       struct snd_dma_buffer *buf);
+	void (*dma_free_pages)(struct azx *chip, struct snd_dma_buffer *buf);
+	int (*substream_alloc_pages)(struct azx *chip,
+				     struct snd_pcm_substream *substream,
+				     size_t size);
+	int (*substream_free_pages)(struct azx *chip,
+				    struct snd_pcm_substream *substream);
+	void (*pcm_mmap_prepare)(struct snd_pcm_substream *substream,
+				 struct vm_area_struct *area);
+	/* Check if current position is acceptable */
+	int (*position_check)(struct azx *chip, struct azx_dev *azx_dev);
+};
+
+struct azx_pcm {
+	struct azx *chip;
+	struct snd_pcm *pcm;
+	struct hda_codec *codec;
+	struct hda_pcm *info;
+	struct list_head list;
+};
+
+typedef unsigned int (*azx_get_pos_callback_t)(struct azx *, struct azx_dev *);
+typedef int (*azx_get_delay_callback_t)(struct azx *, struct azx_dev *, unsigned int pos);
+
+struct azx {
+	struct snd_card *card;
+	struct pci_dev *pci;
+	int dev_index;
+
+	/* chip type specific */
+	int driver_type;
+	unsigned int driver_caps;
+	int playback_streams;
+	int playback_index_offset;
+	int capture_streams;
+	int capture_index_offset;
+	int num_streams;
+	const int *jackpoll_ms; /* per-card jack poll interval */
+
+	/* Register interaction. */
+	const struct hda_controller_ops *ops;
+
+	/* position adjustment callbacks */
+	azx_get_pos_callback_t get_position[2];
+	azx_get_delay_callback_t get_delay[2];
+
+	/* pci resources */
+	unsigned long addr;
+	void __iomem *remap_addr;
+	int irq;
+
+	/* locks */
+	spinlock_t reg_lock;
+	struct mutex open_mutex; /* Prevents concurrent open/close operations */
+
+	/* streams (x num_streams) */
+	struct azx_dev *azx_dev;
+
+	/* PCM */
+	struct list_head pcm_list; /* azx_pcm list */
+
+	/* HD codec */
+	unsigned short codec_mask;
+	int  codec_probe_mask; /* copied from probe_mask option */
+	struct hda_bus *bus;
+	unsigned int beep_mode;
+
+	/* CORB/RIRB */
+	struct azx_rb corb;
+	struct azx_rb rirb;
+
+	/* CORB/RIRB and position buffers */
+	struct snd_dma_buffer rb;
+	struct snd_dma_buffer posbuf;
+
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+	const struct firmware *fw;
+#endif
+
+	/* flags */
+	const int *bdl_pos_adj;
+	int poll_count;
+	unsigned int running:1;
+	unsigned int initialized:1;
+	unsigned int single_cmd:1;
+	unsigned int polling_mode:1;
+	unsigned int msi:1;
+	unsigned int probing:1; /* codec probing phase */
+	unsigned int snoop:1;
+	unsigned int align_buffer_size:1;
+	unsigned int region_requested:1;
+	unsigned int disabled:1; /* disabled by VGA-switcher */
+
+	/* for debugging */
+	unsigned int last_cmd[AZX_MAX_CODECS];
+
+#ifdef CONFIG_SND_HDA_DSP_LOADER
+	struct azx_dev saved_azx_dev;
+#endif
+};
+
+#ifdef CONFIG_X86
+#define azx_snoop(chip)		((chip)->snoop)
+#else
+#define azx_snoop(chip)		true
+#endif
+
+/*
+ * macros for easy use
+ */
+
+#define azx_writel(chip, reg, value) \
+	((chip)->ops->reg_writel(value, (chip)->remap_addr + AZX_REG_##reg))
+#define azx_readl(chip, reg) \
+	((chip)->ops->reg_readl((chip)->remap_addr + AZX_REG_##reg))
+#define azx_writew(chip, reg, value) \
+	((chip)->ops->reg_writew(value, (chip)->remap_addr + AZX_REG_##reg))
+#define azx_readw(chip, reg) \
+	((chip)->ops->reg_readw((chip)->remap_addr + AZX_REG_##reg))
+#define azx_writeb(chip, reg, value) \
+	((chip)->ops->reg_writeb(value, (chip)->remap_addr + AZX_REG_##reg))
+#define azx_readb(chip, reg) \
+	((chip)->ops->reg_readb((chip)->remap_addr + AZX_REG_##reg))
+
+#define azx_sd_writel(chip, dev, reg, value) \
+	((chip)->ops->reg_writel(value, (dev)->sd_addr + AZX_REG_##reg))
+#define azx_sd_readl(chip, dev, reg) \
+	((chip)->ops->reg_readl((dev)->sd_addr + AZX_REG_##reg))
+#define azx_sd_writew(chip, dev, reg, value) \
+	((chip)->ops->reg_writew(value, (dev)->sd_addr + AZX_REG_##reg))
+#define azx_sd_readw(chip, dev, reg) \
+	((chip)->ops->reg_readw((dev)->sd_addr + AZX_REG_##reg))
+#define azx_sd_writeb(chip, dev, reg, value) \
+	((chip)->ops->reg_writeb(value, (dev)->sd_addr + AZX_REG_##reg))
+#define azx_sd_readb(chip, dev, reg) \
+	((chip)->ops->reg_readb((dev)->sd_addr + AZX_REG_##reg))
+
+#define azx_has_pm_runtime(chip) \
+	(!AZX_DCAPS_PM_RUNTIME || ((chip)->driver_caps & AZX_DCAPS_PM_RUNTIME))
 
 /* PCM setup */
 static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
@@ -43,14 +429,9 @@ void azx_enter_link_reset(struct azx *chip);
 irqreturn_t azx_interrupt(int irq, void *dev_id);
 
 /* Codec interface */
-int azx_codec_create(struct azx *chip, const char *model,
-		     unsigned int max_slots,
-		     int *power_save_to);
+int azx_bus_create(struct azx *chip, const char *model);
+int azx_probe_codecs(struct azx *chip, unsigned int max_slots);
 int azx_codec_configure(struct azx *chip);
-int azx_mixer_create(struct azx *chip);
 int azx_init_stream(struct azx *chip);
 
-void azx_notifier_register(struct azx *chip);
-void azx_notifier_unregister(struct azx *chip);
-
 #endif /* __SOUND_HDA_CONTROLLER_H */