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authorTakashi Iwai <tiwai@suse.de>2012-01-10 15:16:02 +0100
committerTakashi Iwai <tiwai@suse.de>2012-01-10 15:16:02 +0100
commit4808d12d1dddb046ec86425e5f6766f02e950292 (patch)
tree4e04f621007f5901855a4616dcdc333671139f3e
parent3a90274de3548ebb2aabfbf488cea8e275a73dc6 (diff)
downloadop-kernel-dev-4808d12d1dddb046ec86425e5f6766f02e950292.zip
op-kernel-dev-4808d12d1dddb046ec86425e5f6766f02e950292.tar.gz
ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs
Currently the driver checks only the out_mix_path[] for the primary output route for judging whether to create the loopback-mixing control or not. But, there are cases where aamix-routing is available only on headphone or speaker paths but not on the primary output path. So, the driver ignores such cases inappropriately. This patch fixes the check of the loopback-mixing control by testing all mix-routing paths. Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/patch_via.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index ab56866..03e63fe 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -2208,7 +2208,10 @@ static int via_auto_create_loopback_switch(struct hda_codec *codec)
{
struct via_spec *spec = codec->spec;
- if (!spec->aa_mix_nid || !spec->out_mix_path.depth)
+ if (!spec->aa_mix_nid)
+ return 0; /* no loopback switching available */
+ if (!(spec->out_mix_path.depth || spec->hp_mix_path.depth ||
+ spec->speaker_path.depth))
return 0; /* no loopback switching available */
if (!via_clone_control(spec, &via_aamix_ctl_enum))
return -ENOMEM;
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