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ALSA: hda - Check the external mic pin more strictly for Conexant chips 

The external mic jack for auto-mic switch must be really an external
jack and with a presense-detection capability.  This patch makes the
check more paranoia.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2010-09-17 14:45:14 +02:00
parent 99ae28bea9
commit f68b3b291d
1 changed files with 2 additions and 1 deletions
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3
sound/pci/hda/patch_conexant.c
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@ -3475,7 +3475,8 @@ static int is_ext_mic(struct hda_codec *codec, hda_nid_t pin)
{
unsigned int def_conf = snd_hda_codec_get_pincfg(codec, pin);
return get_defcfg_device(def_conf) == AC_JACK_MIC_IN &&
snd_hda_get_input_pin_attr(def_conf) != INPUT_PIN_ATTR_INT;
snd_hda_get_input_pin_attr(def_conf) >= INPUT_PIN_ATTR_NORMAL &&
(snd_hda_query_pin_caps(codec, pin) & AC_PINCAP_PRES_DETECT);
}
/* check whether the pin config is suitable for auto-mic switching;