[ALSA] ac97 - Fix confliction of DRA and surround slots
Modules: AC97 Codec
Fixed the confliction of DRA and surround slots 7/8.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ac97/ac97_pcm.c b/sound/pci/ac97/ac97_pcm.c
index dd289b9..ded1316 100644
--- a/sound/pci/ac97/ac97_pcm.c
+++ b/sound/pci/ac97/ac97_pcm.c
@@ -303,6 +303,15 @@
AC97_EA_DRA, dbl ? AC97_EA_DRA : 0);
snd_ac97_update(ac97, reg, tmp & 0xffff);
snd_ac97_read(ac97, reg);
+ if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE) {
+ /* Intel controllers require double rate data to be put in
+ * slots 7+8
+ */
+ snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE,
+ AC97_GP_DRSS_MASK,
+ dbl ? AC97_GP_DRSS_78 : 0);
+ snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
+ }
return 0;
}