[ALSA] Fix EAPD for MSI S270

AC97 Codec
Fix pin47 setting for EAPD control on MSI S270 laptop.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 2 deletions

diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index b584172c1104..0acf51dd4478 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -2145,8 +2145,13 @@ int patch_alc655(ac97_t * ac97)
         val = snd_ac97_read(ac97, 0x7a); /* misc control */
         if (ac97->id == 0x414c4780) /* ALC658 */
                 val &= ~(1 << 1); /* Pin 47 is spdif input pin */
-        else /* ALC655 */
-                val |= (1 << 1); /* Pin 47 is spdif input pin */
+        else { /* ALC655 */
+                if (ac97->subsystem_vendor == 0x1462 &&
+                    ac97->subsystem_device == 0x0131) /* MSI S270 laptop */
+                        val &= ~(1 << 1); /* Pin 47 is EAPD (for internal speaker) */
+                else
+                        val |= (1 << 1); /* Pin 47 is spdif input pin */
+        }
         val &= ~(1 << 12); /* vref enable */
         snd_ac97_write_cache(ac97, 0x7a, val);
         /* set default: spdif-in enabled,