[PATCH] ALSA: hda: generic: Fix the micmute led init state

[Takashi Iwai]

On Fri, 12 Mar 2021 05:14:08 +0100,
Hui Wang wrote:
> 
> Recently we found the micmute led init state is not correct after
> freshly installing the ubuntu linux on a Lenovo AIO machine. The
> internal mic is not muted, but the micmute led is on and led mode is
> 'follow mute'. If we mute internal mic, the led is keeping on, then
> unmute the internal mic, the led is off. And from then on, the
> micmute led will work correctly.
> 
> So the micmute led init state is not correct. The led is controlled
> by codec gpio (ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), in the
> patch_realtek, the gpio data is set to 0x4 initially and the led is
> on with this data. In the hda_generic, the led_value is set to
> 0 initially, suppose users set the 'capture switch' to on from
> user space and the micmute led should change to be off with this
> operation, but the check "if (val == spec->micmute_led.led_value)" in
> the call_micmute_led_update() will skip the led setting.
> 
> To guarantee the led state will be set by the 1st time of changing
> "Capture Switch", set -1 to the init led_value.
> 
> Cc: <stable at vger.kernel.org>
> Signed-off-by: Hui Wang <hui.wang at canonical.com>

Applied, thanks.


Takashi