From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 6 Dec 2013 08:30:14 +0000 (+0100)
Subject: ALSA: hda - Allow capture-only configuration
X-Git-Tag: firefly_0821_release~176^2~4492^2~11^2~55
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c9e4bdb7557ad152f8a41301e646403d9f0ad92c;p=firefly-linux-kernel-4.4.55.git

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 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 &&