[SRU][I/H/F][PATCH 0/1] Fix speaker issues for a couple of Lenovo laptops

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1939052

[Impact]
The speaker on a coule of Lenovo laptops can't output sound, need
to do special initialization.

[Fix]
Backport a upstream patch, the patch will initialize the speaker
amplifier with special verbs.

[Test]
Booting the patched kernel, output the sound to speaker, could
heaer the sound.

[Where problems could occur]
The patch set the quirk to some lenovo machines with subsystem id,
there is no regression risk for other machines.


Cameron Berkenpas (1):
  ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion
    7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops.

 sound/pci/hda/patch_realtek.c | 129 ++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)

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2.25.1