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: 00ef99408b6c ('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>

diff --git a/sound/pci/hda/dell_wmi_helper.c b/sound/pci/hda/dell_wmi_helper.c
index 9c22f95..19d41da 100644 (file)
--- 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 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;

diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index f0955fd..6a23302 100644 (file)
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -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 {