4.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hui Wang <hui.wang@xxxxxxxxxxxxx>
commit 4875a5f7218068cdeea5f998330dfa3d118b2fea upstream.
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: 00ef99408b6c ('ALSA: hda - add mic mute led hook for dell machines')
Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/hda/dell_wmi_helper.c | 2 +-
sound/pci/hda/thinkpad_helper.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/sound/pci/hda/dell_wmi_helper.c
+++ b/sound/pci/hda/dell_wmi_helper.c
@@ -49,7 +49,7 @@ static void alc_fixup_dell_wmi(struct hd
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;
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -62,7 +62,7 @@ static void hda_fixup_thinkpad_acpi(stru
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 {
--
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