linux.git/Documentation/sound, branch v5.6

Merge tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2020-01-29T00:26:57+00:00

Pull sound updates from Takashi Iwai:
 "As the diffstat shows we've had again a lot of works done for this
  cycle: the majority of changes are the continued componentization and
  code refactoring in ASoC, the tree-wide PCM API updates and cleanups
  and SOF updates while a few ASoC driver updates are seen, too.

  Here we go, some highlights:

  Core:
   - Finally y2038 support landed to ALSA ABI; some ioctls have been
     extended and lots of tricks were applied
   - Applying the new managed PCM buffer API to all drivers; the API
     itself was already merged in 5.5
   - The already deprecated dimension support in ALSA control API is
     dropped completely now
   - Verification of ALSA control elements to catch API misuses

  ASoC:
   - Further code refactorings and moving things to the component level
   - Lots of updates and improvements on SOF / Intel drivers; now
     including common HDMI driver and SoundWire support
   - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
     WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011,
     RT1015 and RT1308

  HD-audio:
   - Improved ring-buffer communications using waitqueue
   - Drop the superfluous buffer preallocation on x86

  Others:
   - Many code cleanups, mostly constifications over the whole tree
   - USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix
   - FireWire: code refactoring for oxfw and dice drivers"

* tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (638 commits)
  ALSA: usb-audio: add quirks for Line6 Helix devices fw>=2.82
  ALSA: hda: Add Clevo W65_67SB the power_save blacklist
  ASoC: soc-core: remove null_snd_soc_ops
  ASoC: soc-pcm: add soc_rtd_trigger()
  ASoC: soc-pcm: add soc_rtd_hw_free()
  ASoC: soc-pcm: add soc_rtd_hw_params()
  ASoC: soc-pcm: add soc_rtd_prepare()
  ASoC: soc-pcm: add soc_rtd_shutdown()
  ASoC: soc-pcm: add soc_rtd_startup()
  ASoC: rt1015: add rt1015 amplifier driver
  ASoC: madera: Correct some kernel doc
  ASoC: topology: fix soc_tplg_fe_link_create() - link->dobj initialization order
  ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug
  ASoC: madera: Correct DMIC only input hook ups
  ALSA: cs46xx: fix spelling mistake "to" -> "too"
  ALSA: hda - Add docking station support for Lenovo Thinkpad T420s
  ASoC: Add MediaTek MT6660 Speaker Amp Driver
  ASoC: dt-bindings: rt5645: add suppliers
  ASoC: max98090: fix deadlock in max98090_dapm_put_enum_double()
  ASoC: dapm: add snd_soc_dapm_put_enum_double_locked
  ...

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06T08:45:59+00:00

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig 
Acked-by: Arnd Bergmann

ALSA: info: Make snd_info_entry_ops as const

2020-01-03T08:24:18+00:00

The reference to snd_info_entry_ops is rather read-only, so declare it
as a const pointer.  This allows a bit more optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-29-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Constify snd_device_ops definitions

2020-01-03T08:24:06+00:00

Update the documentation for adding the const prefix to snd_device_ops
definitions as well.

Link: https://lore.kernel.org/r/20200103081714.9560-20-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: cmipci: Allow disabling MPU port via module option

2019-12-17T08:16:15+00:00

Patrick May reported that his sound card with CMI8378 chip causes a
crash / reboot when accessing the MIDI port that isn't actually
present on the board.  Moreover, despite of the documentation,
passing mpu_port=0 doesn't disable the MIDI port on this board.

It implies that the chip is a newer revision and the MPU401 port is
integrated and mapped on the PCI register.  For this chip model, the
driver enables the MPU port unconditionally, so far.

Although fixing the unexpected reboot would be the best solution, it's
not so trivial to identify the cause.  So, as a plan B, this patch
extends the existing mpu_port option usage to allow disabling the port
by specifying the value 0, just like we applied for fm_port option in
commit 2f24d159d5ac ("[ALSA] cmipci - Allow to disable integrated FM
port").  As default, the MPU port is still enabled, but user can pass
mpu_port=0 to disable it.

Reported-and-tested-by: Patrick May 
Link: https://lore.kernel.org/r/20191217081448.1144-1-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update about the new PCM sync_stop ops

2019-11-20T18:39:54+00:00

Add the documentation about the new PCM sync_stop ops and
card->sync_irq field.

Link: https://lore.kernel.org/r/20191117085308.23915-9-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update document about the default PCM ioctl ops

2019-11-20T18:39:54+00:00

Mention that it's completely optional now.

Link: https://lore.kernel.org/r/20191117085308.23915-5-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update for managed buffer allocation mode

2019-11-20T18:39:54+00:00

Update the documentation for the newly introduced managed buffer
allocation mode accordingly.  The old preallocation is no longer
recommended.

Link: https://lore.kernel.org/r/20191117085308.23915-3-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Remove snd_dma_pci_data() usage in documentation

2019-11-06T14:47:43+00:00

The macro will be removed soon later, so update the documentation to
reflect that as well.

Link: https://lore.kernel.org/r/20191105151856.10785-25-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update documentation about SG- and vmalloc-buffers

2019-11-06T14:43:33+00:00

The recent changes simplified the required setup for SG- and vmalloc-
buffers.  Update the documentation accordingly.

Link: https://lore.kernel.org/r/20191105080138.1260-5-tiwai@suse.de
Signed-off-by: Takashi Iwai