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ALSA: hda - Avoid touching mute-VREF pin for IDT codecs
author
Takashi Iwai
<tiwai@suse.de>
Tue, 29 Nov 2011 12:01:30 +0000
(13:01 +0100)
committer
Takashi Iwai
<tiwai@suse.de>
Tue, 29 Nov 2011 12:01:30 +0000
(13:01 +0100)
Some HP laptops use a pin VREF for controlling the mute LED, and such a
pin shouldn't be powered off.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/patch_sigmatel.c
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diff --git
a/sound/pci/hda/patch_sigmatel.c
b/sound/pci/hda/patch_sigmatel.c
index
f365865
..
f4f4ebe
100644
(file)
--- a/
sound/pci/hda/patch_sigmatel.c
+++ b/
sound/pci/hda/patch_sigmatel.c
@@
-4441,7
+4441,9
@@
static int stac92xx_init(struct hda_codec *codec)
int pinctl, def_conf;
/* power on when no jack detection is available */
- if (!spec->hp_detect) {
+ /* or when the VREF is used for controlling LED */
+ if (!spec->hp_detect ||
+ (spec->gpio_led > 8 && spec->gpio_led == nid)) {
stac_toggle_power_map(codec, nid, 1);
continue;
}