[alsa-devel] [PATCH] ALSA: hda - Allow capture-only configuration

[Takashi Iwai]

We have blindly assumed that all valid configurations should have
either analog or digital playback, but there can be capture-only
configurations.  The parser shouldn't escape in such a case.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_generic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 2729e881541d..5ba3106b9712 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -4334,7 +4334,8 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
 			spec->no_analog = 1;
 			goto dig_only;
 		}
-		return 0; /* can't find valid BIOS pin config */
+		if (!cfg->num_inputs && !cfg->dig_in_pin)
+			return 0; /* can't find valid BIOS pin config */
 	}
 
 	if (!spec->no_primary_hp &&
-- 
1.8.5