[SRU] [Unstable/OEM-5.6] [PATCH 00/13] Add generic LED class support for audio LED

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1885896

[Impact]
Like GPIO controlled LED, COEF controlled LED also need LED class
support, in order to be used by SoF driver.

[Fix]
Convert all HDA vendor-specific LED control to generic LED class.

[Test]
After applying the patch series, COEF controlled LED is exported under
/sys/class/leds/, so SoF driver now can control the micmute LED.

Also verified on GPIO based micmute LED, it also works fine.

[Regression Potential]
Low. Though there are 13 patches, most of them are straightforward
conversion.

Takashi Iwai (13):
  ALSA: hda: generic: Always call led-trigger for mic mute LED
  ALSA: hda: generic: Add a helper for mic-mute LED with LED classdev
  ALSA: hda/realtek: Convert to cdev-variant of mic-mute LED controls
  ALSA: hda/conexant: Convert to cdev-variant of mic-mute LED controls
  ALSA: hda/sigmatel: Convert to cdev-variant of mic-mute LED controls
  ALSA: hda: generic: Drop unused snd_hda_gen_fixup_micmute_led()
  ALSA: hda: generic: Drop the old mic-mute LED hook
  ALSA: hda: generic: Add vmaster mute LED helper
  ALSA: hda/realtek: Use the new vmaster mute LED helper
  ALSA: hda/conexant: Use the new vmaster mute LED helper
  ALSA: hda/sigmatel: Use the new vmaster mute LED helper
  ALSA: hda/realtek: Unify LED helper code
  ALSA: hda: Let LED cdev handling suspend/resume

 sound/pci/hda/Kconfig           |   9 ++
 sound/pci/hda/hda_generic.c     | 134 ++++++++++++-------
 sound/pci/hda/hda_generic.h     |  13 +-
 sound/pci/hda/patch_conexant.c  |  47 +++----
 sound/pci/hda/patch_realtek.c   | 220 +++++++++++++++-----------------
 sound/pci/hda/patch_sigmatel.c  |  22 ++--
 sound/pci/hda/thinkpad_helper.c |  19 +--
 7 files changed, 248 insertions(+), 216 deletions(-)

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2.17.1