Revert "ALSA: hda - Add mute-LED mode control to Thinkpad"

commit 3530febb5c7636f6b26d15637f68296804d26491 upstream.

This reverts commit 7290006d8c0900c56d8c58428134f02c35109d17.

Through the regression report, it was revealed that the
tpacpi_led_set() call to thinkpad_acpi helper doesn't only toggle the
mute LED but actually mutes the sound.  This is contradiction to the
expectation, and rather confuses user.

According to Henrique, it's not trivial to judge which TP model
behaves "LED-only" and which model does whatever more intrusive, as
Lenovo's implementations vary model by model.  So, from the safety
reason, we should revert the patch for now.

Reported-by: Martin Steigerwald <martin@lichtvoll.de>
Cc: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index 2341fc334163e8a48e90a804ae162f2a382147c0..6ba0b5517c407fdb015a8ca366440b32128a92c6 100644 (file)
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -72,7 +72,6 @@ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,
                if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
                        old_vmaster_hook = spec->vmaster_mute.hook;
                        spec->vmaster_mute.hook = update_tpacpi_mute_led;
-                       spec->vmaster_mute_enum = 1;
                        removefunc = false;
                }
                if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {