[SRU] [J/OEM-5.14] [PATCH 0/2] Fix audio on Zbook Studio G9

Kai-Heng Feng kai.heng.feng at canonical.com
Wed Mar 23 03:18:52 UTC 2022

BugLink: https://bugs.launchpad.net/bugs/1966010

This needs to be applied on top of SRU "alsa: enable the cirrus-logic
side-codec to make the speaker output sound".

Cirrus Logic AMP still doesn't work on Zbook Studio G9. Moreoever, The
audio mute LEDs stop working after the said SRU.

Correcly interpret the debounce time from ACPI to gpiolib, and apply the
correct quirk for the audio mute LEDs.

[Where problems could occur]
It's possible that some hardwares rely on the "wrong" debounce time to
work, however the fix is to increase the debounce time, so it's more
forgiving than decreasing.

The LED fix is only applied to one system, so it's specifi and won't
cause too much trouble.

Andy Shevchenko (1):
  gpiolib: acpi: Convert ACPI value of debounce to microseconds

Kai-Heng Feng (1):
  ALSA: hda/realtek: Fix LED on Zbook Studio G9

 drivers/gpio/gpiolib-acpi.c   |  6 ++++--
 drivers/gpio/gpiolib.c        | 10 ++++++++++
 sound/pci/hda/patch_realtek.c |  4 ++--
 3 files changed, 16 insertions(+), 4 deletions(-)


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