[ALSA] hda-codec - Fix input with STAC92xx

The recent fix for STAC92xx surround outputs broke the input pin
setting for shared line-in and mic jacks.  This patch fixes the
breakage.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 15 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 1527cb61e5d6..33fc7cd00935 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))