Merge tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became a fairly large pull request.  In addition to the usual
  driver updates / fixes, there have been a high amount of cleanups in
  ASoC area, as well as control API helpers and kernel documentations
  fixes touching through the whole tree.

  In the driver side, the biggest changes are the support for new Intel
  SoC found on new x86 machines, and the updates of FireWire dice and
  oxfw drivers.

  Some remarkable items are below:

  ALSA core:
   - PCM mmap code cleanup, removal of arch-dependent codes
   - PCM xrun injection support
   - PCM hwptr tracepoint support
   - Refactoring of snd_pcm_action(), simplification of PCM locking
   - Robustified sequecner auto-load functionality
   - New control API helpers and lots of cleanups along with them
   - Lots of kerneldoc fixes and cleanups

  USB-audio:
   - The mixer resume code was largely rewritten, and the devices with
     quirks are resumed properly.
   - New hardware support: Focusrite Scarlett, Digidesign Mbox1,
     Denon/Marantz DACs, Zoom R16/24

  FireWire:
   - DICE driver updates with better duplex and sync support, including
     MIDI support
   - New OXFW driver for Oxford Semiconductor FW970/971 chipset,
     including the previous LaCie Speakers device.  Fullduplex and MIDI
     support included as well as DICE driver.

  HD-audio:
   - Refactoring the driver-caps quirk handling in snd-hda-intel
   - More consistent control names representing the topology better
   - Fixups: HP mute LED with ALC268 codec, Ideapad S210 built-in mic
     fix, ASUS Z99He laptop EAPD

  ASoC:
   - Conversion of AC'97 drivers to use regmap, bringing us closer to
     the removal of the ASoC level I/O code
   - Clean up a lot of old drivers that were open coding things that
     have subsequently been implemented in the core
   - Some DAPM performance improvements
   - Removal of the now seldom used CODEC mutex
   - Lots of updates for the newer Intel SoC support, including support
     for the DSP and some Cherrytrail and Braswell machine drivers
   - Support for Samsung boards using rt5631 as the CODEC
   - Removal of the obsolete AFEB9260 machine driver
   - Driver support for the TI TS3A227E headset driver used in some
     Chrombeooks

  Others:
   - ASIHPI driver update and cleanups
   - Lots of dev_*() printk conversions
   - Lots of trivial cleanups for the codes spotted by Coccinelle"

* tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits)
  ALSA: pcxhr: NULL dereference on probe failure
  ALSA: lola: NULL dereference on probe failure
  ALSA: hda - Add "eapd" model string for AD1986A codec
  ALSA: hda - Add EAPD fixup for ASUS Z99He laptop
  ALSA: oxfw: Add hwdep interface
  ALSA: oxfw: Add support for capture/playback MIDI messages
  ALSA: oxfw: add support for capturing PCM samples
  ALSA: oxfw: Add support AMDTP in-stream
  ALSA: oxfw: Add support for Behringer/Mackie devices
  ALSA: oxfw: Change the way to start stream
  ALSA: oxfw: Add proc interface for debugging purpose
  ALSA: oxfw: Change the way to make PCM rules/constraints
  ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formation
  ALSA: oxfw: Change the way to name card
  ALSA: dice: Add support for MIDI capture/playback
  ALSA: dice: Add support for capturing PCM samples
  ALSA: dice: Support for non SYT-Match sampling clock source mode
  ALSA: dice: Add support for duplex streams with synchronization
  ALSA: dice: Change the way to start stream
  ALSA: jack: Add dummy snd_jack_set_key() definition
  ...

1 files changed, 38 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c
index 8c6c50afc0b7..1e7de08e77cb 100644
--- a/sound/pci/hda/hda_beep.c
+++ b/sound/pci/hda/hda_beep.c
@@ -175,6 +175,11 @@ static int snd_hda_do_attach(struct hda_beep *beep)
 	return 0;
 }
 
+/**
+ * snd_hda_enable_beep_device - Turn on/off beep sound
+ * @codec: the HDA codec
+ * @enable: flag to turn on/off
+ */
 int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
 {
 	struct hda_beep *beep = codec->beep;
@@ -191,6 +196,20 @@ int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
 }
 EXPORT_SYMBOL_GPL(snd_hda_enable_beep_device);
 
+/**
+ * snd_hda_attach_beep_device - Attach a beep input device
+ * @codec: the HDA codec
+ * @nid: beep NID
+ *
+ * Attach a beep object to the given widget.  If beep hint is turned off
+ * explicitly or beep_mode of the codec is turned off, this doesn't nothing.
+ *
+ * The attached beep device has to be registered via
+ * snd_hda_register_beep_device() and released via snd_hda_detach_beep_device()
+ * appropriately.
+ *
+ * Currently, only one beep device is allowed to each codec.
+ */
 int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
 {
 	struct hda_beep *beep;
@@ -228,6 +247,10 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
 }
 EXPORT_SYMBOL_GPL(snd_hda_attach_beep_device);
 
+/**
+ * snd_hda_detach_beep_device - Detach the beep device
+ * @codec: the HDA codec
+ */
 void snd_hda_detach_beep_device(struct hda_codec *codec)
 {
 	struct hda_beep *beep = codec->beep;
@@ -240,6 +263,10 @@ void snd_hda_detach_beep_device(struct hda_codec *codec)
 }
 EXPORT_SYMBOL_GPL(snd_hda_detach_beep_device);
 
+/**
+ * snd_hda_register_beep_device - Register the beep device
+ * @codec: the HDA codec
+ */
 int snd_hda_register_beep_device(struct hda_codec *codec)
 {
 	struct hda_beep *beep = codec->beep;
@@ -269,6 +296,12 @@ static bool ctl_has_mute(struct snd_kcontrol *kcontrol)
 }
 
 /* get/put callbacks for beep mute mixer switches */
+
+/**
+ * snd_hda_mixer_amp_switch_get_beep - Get callback for beep controls
+ * @kcontrol: ctl element
+ * @ucontrol: pointer to get/store the data
+ */
 int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
 				      struct snd_ctl_elem_value *ucontrol)
 {
@@ -283,6 +316,11 @@ int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
 }
 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get_beep);
 
+/**
+ * snd_hda_mixer_amp_switch_put_beep - Put callback for beep controls
+ * @kcontrol: ctl element
+ * @ucontrol: pointer to get/store the data
+ */
 int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
 				      struct snd_ctl_elem_value *ucontrol)
 {