ALSA: hda - Fix line-in on Mac Mini Core2 Duo
BIOS on Mac Mini Core2 Duo sets both INPUT and OUTPUT pinctl bits to
the line-in jack, and it confuses the driver as if it's a valid input.
This patch adds the check of OUTPUT bit so that the driver fixes the
invalid pin setup.
Tested-by: Tino Keitel <tino.keitel@gmx.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 917bc5d..03b3646 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4079,7 +4079,12 @@
pinctl = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
/* if PINCTL already set then skip */
- if (!(pinctl & AC_PINCTL_IN_EN)) {
+ /* Also, if both INPUT and OUTPUT are set,
+ * it must be a BIOS bug; need to override, too
+ */
+ if (!(pinctl & AC_PINCTL_IN_EN) ||
+ (pinctl & AC_PINCTL_OUT_EN)) {
+ pinctl &= ~AC_PINCTL_OUT_EN;
pinctl |= AC_PINCTL_IN_EN;
stac92xx_auto_set_pinctl(codec, nid,
pinctl);