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-rw-r--r--sound/pci/hda/patch_sigmatel.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 1527cb61e5d..33fc7cd0093 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1764,6 +1764,21 @@ static void stac92xx_set_pinctl(struct hda_codec *codec, hda_nid_t nid,
unsigned int pin_ctl = snd_hda_codec_read(codec, nid,
0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0x00);
+ if (pin_ctl & AC_PINCTL_IN_EN) {
+ /*
+ * we need to check the current set-up direction of
+ * shared input pins since they can be switched via
+ * "xxx as Output" mixer switch
+ */
+ struct sigmatel_spec *spec = codec->spec;
+ struct auto_pin_cfg *cfg = &spec->autocfg;
+ if ((nid == cfg->input_pins[AUTO_PIN_LINE] &&
+ spec->line_switch) ||
+ (nid == cfg->input_pins[AUTO_PIN_MIC] &&
+ spec->mic_switch))
+ return;
+ }
+
/* if setting pin direction bits, clear the current
direction bits first */
if (flag & (AC_PINCTL_IN_EN | AC_PINCTL_OUT_EN))