ALSA: hda: generic: Add a helper for mic-mute LED with LED classdev

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A new helper, snd_hda_gen_add_micmute_led_cdev(), is introduced here
for creating a LED classdev and setting up the hook to the capture
control for controlling the mic-mute LED to follow the capture switch
change.  This will replace the existing users of
snd_hda_gen_add_micmute_led() in later patches.

Also, introduce a new kconfig CONFIG_SND_HDA_GENERIC_LEDS, to indicate
the usage of mute / mic-mute LED helpers.  It's selected by the codec
drivers (Realtek, Conexant and Sigmatel), while it selects the
necessary LED class dependencies.

Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200618110842.27238-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2020-06-18 13:08:31 +02:00

parent bf61c42a44

commit 7cdf8c49b1

4 changed files with 60 additions and 31 deletions

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9

sound/pci/hda/Kconfig

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47

sound/pci/hda/hda_generic.c

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5

sound/pci/hda/hda_generic.h

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30

sound/pci/hda/patch_realtek.c

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