Pull sound fixes from Takashi Iwai:
 "A collection of small fixes for rc1.

  The only (LOC-wise) dominant change was ASoC Qualcomm fix, but most of
  it was merely a code shuffling.

  Another significant change here is for ALSA PCM core; it received a
  revert and a series of fixes for PCM auto-silencing where it caused a
  regression in the previous PR for rc1.

  Others are all small: ASoC Intel fixes, various quirks for ASoC AMD,
  HD-audio and USB-audio, the continued legacy emu10k1 code cleanup, and
  some documentation updates"

* tag 'sound-fix-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ALSA: pcm: use exit controlled loop in snd_pcm_playback_silence()
  ALSA: pcm: simplify top-up mode init in snd_pcm_playback_silence()
  ALSA: pcm: playback silence - move silence variable updates to separate function
  ALSA: pcm: playback silence - remove extra code
  ALSA: pcm: fix playback silence - correct incremental silencing
  ALSA: pcm: fix playback silence - use the actual new_hw_ptr for the threshold mode
  ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()"
  ALSA: hda/realtek: Fix mute and micmute LEDs for an HP laptop
  ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init`
  ALSA: usb-audio: Add quirk for Pioneer DDJ-800
  ALSA: hda/realtek: support HP Pavilion Aero 13-be0xxx Mute LED
  ASoC: Intel: soc-acpi-cht: Add quirk for Nextbook Ares 8A tablet
  ASoC: amd: yc: Add Asus VivoBook Pro 14 OLED M6400RC to the quirks list for acp6x
  ASoC: codecs: wcd938x: fix accessing regmap on unattached devices
  ALSA: docs: Fix code block indentation in ALSA driver example
  ALSA: docs: Extend module parameters description
  ALSA: hda/realtek: Add quirk for ASUS UM3402YAR using CS35L41
  ALSA: emu10k1: use more existing defines instead of open-coded numbers
  ASoC: amd: yc: Add ASUS M3402RA into DMI table
  ALSA: hda/realtek: Add quirk for ThinkPad P1 Gen 6
  ...

We already know that `frames` is greater than zero, because we just
checked it. So we don't need to check the loop condition on the first
iteration.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-7-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Inline the remaining call of snd_pcm_playback_hw_avail(). This makes
the top-up branch more congruent with the thresholded one, and allows
simplifying the handling of the corner cases.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-6-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The code tracking the added samples in thresholded mode and the code
tracking the just played samples in top-up mode are semantically
identical, so factor it out to a common function to enhance readability.

Co-developed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230505155244.2312199-5-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The removed condition handles de facto only one situation where
runtime->silence_filled variable is equal to runtime->buffer_size,
because this variable cannot go over the buffer size. This case is
implicitly caught by the required comparison of the noise distance
with the threshold.

Suggested-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-4-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Commit 9a826ddba6e ("[ALSA] pcm core: fix silence_start calculations")
came with exactly the right commit message, but the patch just made
things broken in a different way: We'd fill at a too low address if the
area was already partially zeroed, so we'd under-fill. This affected
both thresholded mode (where it was somewhat less likely) and top-up
mode (where it would be the case consistently).

Co-developed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230505155244.2312199-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The snd_pcm_playback_hw_avail() function uses runtime->status->hw_ptr.
Unfortunately, in case when we call this function from snd_pcm_update_hw_ptr0(),
this variable contains the previous hardware pointer. Use the new_hw_ptr
argument to calculate hw_avail (filled samples by the user space) to
correct the threshold comparison.

The new_hw_ptr argument may also be set to ULONG_MAX which means the
initialization phase. In this case, use runtime->status->hw_ptr.

Suggested-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This reverts commit 9f656705c5faa18afb26d922cfc64f9fd103c38d.

There was a regression (in the top-up mode). Unfortunately, the patch
provided from the author of this commit is not easy to review.

Keep the updated and new comments in headers.
Also add a new comment that documents the missed API constraint which
led to the regression.

Reported-by: Jeff Chua <jeff.chua.linux@gmail.com>
Link: https://lore.kernel.org/r/CAAJw_ZsbTVd3Es373x_wTNDF7RknGhCD0r+NKUSwAO7HpLAkYA@mail.gmail.com
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

There's another laptop that needs the fixup to enable mute and micmute
LEDs. So do it accordingly.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230505125925.543601-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ASoC: Fixes for v6.4

A small set of fixes and device quirks that have come in during the
merge window, the Qualcomm fix seems quite large but it's mainly code
motion so looks larger than it is.