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ALSA: hda - Fix phantom jacks on VT1708

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The VT1708 has no unsol event capability, and polling is set using
the "Jack Detect" alsamixer control. In order not to create
phantom Jack controls, temporary enable jackpoll during build_controls.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-02-05 12:06:02 +01:00 committed by Takashi Iwai
parent 2ad779b732
commit f672f65a1c
1 changed files with 13 additions and 0 deletions
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13
sound/pci/hda/patch_via.c
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@ -661,6 +661,18 @@ static int via_init(struct hda_codec *codec)
return 0;
}
static int vt1708_build_controls(struct hda_codec *codec)
{
/* In order not to create "Phantom Jack" controls,
temporary enable jackpoll */
int err;
int old_interval = codec->jackpoll_interval;
codec->jackpoll_interval = msecs_to_jiffies(100);
err = via_build_controls(codec);
codec->jackpoll_interval = old_interval;
return err;
}
static int vt1708_build_pcms(struct hda_codec *codec)
{
struct via_spec *spec = codec->spec;
@ -723,6 +735,7 @@ static int patch_vt1708(struct hda_codec *codec)
spec->init_verbs[spec->num_iverbs++] = vt1708_init_verbs;
codec->patch_ops = via_patch_ops;
codec->patch_ops.build_controls = vt1708_build_controls;
codec->patch_ops.build_pcms = vt1708_build_pcms;
/* clear jackpoll_interval again; it's set dynamically */