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authorRaymond Yau <superquad.vortex2@gmail.com>2012-01-17 11:41:47 +0800
committerTakashi Iwai <tiwai@suse.de>2012-01-24 15:28:05 +0100
commit4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed (patch)
tree4700066adcfd73ed0501841e574334cda30d7a74 /sound/pci/ymfpci/ymfpci.c
parentb4ead019afc201f71c39cd0dfcaafed4a97b3dd2 (diff)
downloadlinux-stericsson-4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed.tar.gz
ALSA: ymfpci - Don't create invalid PCM & mixers when AC97 doesn't support
- check SDAC bit of AC97 primary codec when create "rear" device 3, "4ch" device 2 and "4ch Duplication" switch as the card need a four channels AC97 codec to support surround40. Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/ymfpci/ymfpci.c')
-rw-r--r--sound/pci/ymfpci/ymfpci.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c
index e57b89e8aa89..94ab728f5ca8 100644
--- a/sound/pci/ymfpci/ymfpci.c
+++ b/sound/pci/ymfpci/ymfpci.c
@@ -286,17 +286,22 @@ static int __devinit snd_card_ymfpci_probe(struct pci_dev *pci,
snd_card_free(card);
return err;
}
- if ((err = snd_ymfpci_pcm_4ch(chip, 2, NULL)) < 0) {
+ err = snd_ymfpci_mixer(chip, rear_switch[dev]);
+ if (err < 0) {
snd_card_free(card);
return err;
}
- if ((err = snd_ymfpci_pcm2(chip, 3, NULL)) < 0) {
- snd_card_free(card);
- return err;
- }
- if ((err = snd_ymfpci_mixer(chip, rear_switch[dev])) < 0) {
- snd_card_free(card);
- return err;
+ if (chip->ac97->ext_id & AC97_EI_SDAC) {
+ err = snd_ymfpci_pcm_4ch(chip, 2, NULL);
+ if (err < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ err = snd_ymfpci_pcm2(chip, 3, NULL);
+ if (err < 0) {
+ snd_card_free(card);
+ return err;
+ }
}
if ((err = snd_ymfpci_timer(chip, 0)) < 0) {
snd_card_free(card);