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

This reverts commit 9ebdc4b74fe25218691d636d379febf8ee7ff22f.

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>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index d51703e305238700bce9da8184971ffa516247ca..0a4ad5feb82e7817f7036f86c973d02b1dfecb9b 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) {