Merge tag 'sound-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

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

  The main changes are fixes for a couple of regressions in AMD HD-audio
  and FireWire that were introduced in 5.5-rc1. The rest are small fixes
  for echoaudio and FireWire, as well as a usual Dell HD-audio fixup"

* tag 'sound-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - Line-out jack doesn't work on a Dell AIO
  ALSA: hda/hdmi - Fix duplicate unref of pci_dev
  ALSA: fireface: fix return value in error path of isochronous resources reservation
  ALSA: oxfw: fix return value in error path of isochronous resources reservation
  ALSA: firewire-motu: fix double unlocked 'motu->mutex'
  ALSA: echoaudio: simplify get_audio_levels