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path: root/sound/pci/ac97/ac97_patch.c
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Diffstat (limited to 'sound/pci/ac97/ac97_patch.c')
-rw-r--r--sound/pci/ac97/ac97_patch.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index b584172c110..045ddc743ed 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -2134,7 +2134,13 @@ int patch_alc655(ac97_t * ac97)
{
unsigned int val;
- ac97->spec.dev_flags = (ac97->id == 0x414c4780); /* ALC658 */
+ if (ac97->id == AC97_ID_ALC658) {
+ ac97->spec.dev_flags = 1; /* ALC658 */
+ if ((snd_ac97_read(ac97, AC97_ALC650_REVISION) & 0x3f) == 2) {
+ ac97->id = AC97_ID_ALC658D;
+ ac97->spec.dev_flags = 2;
+ }
+ }
ac97->build_ops = &patch_alc655_ops;
@@ -2143,10 +2149,15 @@ int patch_alc655(ac97_t * ac97)
/* adjust default values */
val = snd_ac97_read(ac97, 0x7a); /* misc control */
- if (ac97->id == 0x414c4780) /* ALC658 */
+ if (ac97->spec.dev_flags) /* 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,
@@ -2159,6 +2170,11 @@ int patch_alc655(ac97_t * ac97)
/* full DAC volume */
snd_ac97_write_cache(ac97, AC97_ALC650_SURR_DAC_VOL, 0x0808);
snd_ac97_write_cache(ac97, AC97_ALC650_LFE_DAC_VOL, 0x0808);
+
+ /* update undocumented bit... */
+ if (ac97->id == AC97_ID_ALC658D)
+ snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
+
return 0;
}