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authorDavid Henningsson <david.henningsson@canonical.com>2012-08-22 18:10:43 +0400
committerTakashi Iwai <tiwai@suse.de>2012-08-22 18:26:05 +0400
commit042b92c185cbd7b4291710255510ae76b2d7797b (patch)
treecdd85f240c81b9579980075cfb6ce25c28352fdd
parent53e1719f3da0f095b8db1461bd12dd79f3246b84 (diff)
downloadlinux-042b92c185cbd7b4291710255510ae76b2d7797b.tar.xz
ALSA: hda - Do not set GPIOs for speakers on IDT if there are no speakers
This fixes an issue with a machine where there were no speakers, but GPIO0 had to be data=1 for the headphone to be functioning. I'm not sure if we need a more advanced patch to solve all possible cases, but if so, this patch would still provide a minor optimisation. BugLink: https://bugs.launchpad.net/bugs/1040077 Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/patch_sigmatel.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index ea5775a1a7db..3edd73c3d361 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4543,6 +4543,9 @@ static void stac92xx_line_out_detect(struct hda_codec *codec,
struct auto_pin_cfg *cfg = &spec->autocfg;
int i;
+ if (cfg->speaker_outs == 0)
+ return;
+
for (i = 0; i < cfg->line_outs; i++) {
if (presence)
break;