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authorRaymond Yau <superquad.vortex2@gmail.com>2012-01-13 10:30:08 +0800
committerTakashi Iwai <tiwai@suse.de>2012-01-16 12:16:34 +0100
commit7b32486ca449a20d64fa381262cc5e56893f0ac1 (patch)
treee4cade4011a76062492344e5d05cc7095eccfa7e /sound/pci/au88x0/au88x0_pcm.c
parentALSA: HDA: Fix internal microphone on Dell Studio 16 XPS 1645 (diff)
downloadlinux-dev-7b32486ca449a20d64fa381262cc5e56893f0ac1.tar.xz
linux-dev-7b32486ca449a20d64fa381262cc5e56893f0ac1.zip
ALSA: Au88x0 - Support 4 channels playback when AC97 codecs has SDAC bit
- Check SDAC bit of AC97 codec for supporting 4 channels playback. Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to '')
-rw-r--r--sound/pci/au88x0/au88x0_pcm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 0488633ea874..0ef2f9712208 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -168,6 +168,7 @@ static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
runtime->hw = snd_vortex_playback_hw_adb;
#ifdef CHIP_AU8830
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
+ VORTEX_IS_QUAD(vortex) &&
VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
runtime->hw.channels_max = 4;
snd_pcm_hw_constraint_list(runtime, 0,