ALSA: hda - Allow capture-only configuration

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@suse.de>

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 2729e881541d1139d0d5492aeb4abfcc2147b7a9..5ba3106b9712890492032bdb83e8fcb57e3547cc 100644 (file)
--- 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 &&