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ALSA: hda - do not add non-existing Mic boost controls

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If the input node does not have any volume capable input amp,
don't add such a control.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-01-16 15:58:43 +01:00 committed by Takashi Iwai
parent c0f3b21643
commit 02aba55053
1 changed files with 3 additions and 0 deletions
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3
sound/pci/hda/hda_generic.c
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@ -2826,6 +2826,9 @@ static int parse_mic_boost(struct hda_codec *codec)
struct nid_path *path;
unsigned int val;
if (!nid_has_volume(codec, nid, HDA_INPUT))
continue;
label = hda_get_autocfg_input_label(codec, cfg, i);
if (prev_label && !strcmp(label, prev_label))
type_idx++;