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ALSA: hda - Fix a failure of micmute led when having multi adcs 

On a Dell laptop, there is no global adcs for all input devices, so
the input devices use the different adc, as a result, dyn_adc_switch
is set to true.

In this situation, it is safe to control the micmute led according to
user's choice of muting/unmuting the current input device, since only
current input device path is active, while other input device paths
are inactive and powered down.

Fixes: 00ef99408b ('ALSA: hda - add mic mute led hook for dell machines')
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Hui Wang 2016-10-11 10:48:58 +08:00 committed by Takashi Iwai
parent b907900ec4
commit 4875a5f721
2 changed files with 2 additions and 2 deletions
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2
sound/pci/hda/dell_wmi_helper.c
View File

@ -49,7 +49,7 @@ static void alc_fixup_dell_wmi(struct hda_codec *codec,
removefunc = true;
if (dell_led_set_func(DELL_LED_MICMUTE, false) >= 0) {
dell_led_value = 0;
if (spec->gen.num_adc_nids > 1)
if (spec->gen.num_adc_nids > 1 && !spec->gen.dyn_adc_switch)
codec_dbg(codec, "Skipping micmute LED control due to several ADCs");
else {
dell_old_cap_hook = spec->gen.cap_sync_hook;

2
sound/pci/hda/thinkpad_helper.c
View File

@ -62,7 +62,7 @@ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,
removefunc = false;
}
if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {
if (spec->num_adc_nids > 1)
if (spec->num_adc_nids > 1 && !spec->dyn_adc_switch)
codec_dbg(codec,
"Skipping micmute LED control due to several ADCs");
else {