ALSA: hda/realtek: Add inverted LED quirk for HP ZBook 8 G2a

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HP ZBook 8 G2a 14 and 16 (SSIDs 0x103c:0x8f94, 0x103c:0x8f95) use the
Realtek ALC245 codec with a TAS2781 amplifier via I2C. They share the same
hardware configuration as the existing 0x8f40/0x8f41/0x8f42/0x8f62 models
but have inverted speaker mute LED polarity, so the existing
ALC245_FIXUP_HP_TAS2781_I2C_MUTE_LED quirk drives the LED backwards: off
when muted and on when unmuted.

Add a dedicated quirk with inverted COEF values. These are speaker-only
models without an HP pin, so the LED is driven directly through the
vmaster_mute hook; there is no need to probe the HP pin at runtime since
the configuration is static and known per SSID.

Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Link: https://patch.msgid.link/20260716023825.387532-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Chris Chiu 2026-07-16 10:38:25 +08:00 • committed by Takashi Iwai

parent a3d6d3cedf

commit ac1e8d01f4

1 changed files with 43 additions and 0 deletions

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sound/hda/codecs/realtek/alc269.c

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