1 files changed, 29 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index d57c81e79edd..356673106788 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -815,6 +815,29 @@ static int find_mute_led_cfg(struct hda_codec *codec, int default_polarity)
         return 0;
 }
 
+/* check whether a built-in speaker is included in parsed pins */
+static bool has_builtin_speaker(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        hda_nid_t *nid_pin;
+        int nids, i;
+
+        if (spec->gen.autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT) {
+                nid_pin = spec->gen.autocfg.line_out_pins;
+                nids = spec->gen.autocfg.line_outs;
+        } else {
+                nid_pin = spec->gen.autocfg.speaker_pins;
+                nids = spec->gen.autocfg.speaker_outs;
+        }
+
+        for (i = 0; i < nids; i++) {
+                unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid_pin[i]);
+                if (snd_hda_get_input_pin_attr(def_conf) == INPUT_PIN_ATTR_INT)
+                        return true;
+        }
+        return false;
+}
+
 /*
  * PC beep controls
  */
@@ -3891,6 +3914,12 @@ static int patch_stac92hd73xx(struct hda_codec *codec)
                 return err;
         }
 
+        /* Don't GPIO-mute speakers if there are no internal speakers, because
+         * the GPIO might be necessary for Headphone
+         */
+        if (spec->eapd_switch && !has_builtin_speaker(codec))
+                spec->eapd_switch = 0;
+
         codec->proc_widget_hook = stac92hd7x_proc_hook;
 
         snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);