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ALSA: hda - Clear unsol enable bits on unused pins in generic parser 

For preliminary works to migrate the generic parser for Conexant
codecs: the same function is ported to hda_generic.c.
But now it looks through the jack detect table so that it can cover
better.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-12-20 15:16:09 +01:00
parent fd25a97a97
commit 973e4972f9
1 changed files with 19 additions and 0 deletions
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19
sound/pci/hda/hda_generic.c
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@ -3532,6 +3532,23 @@ static void init_digital(struct hda_codec *codec)
snd_hda_set_pin_ctl(codec, pin, PIN_IN);
}
/* clear unsol-event tags on unused pins; Conexant codecs seem to leave
* invalid unsol tags by some reason
*/
static void clear_unsol_on_unused_pins(struct hda_codec *codec)
{
int i;
for (i = 0; i < codec->init_pins.used; i++) {
struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
hda_nid_t nid = pin->nid;
if (is_jack_detectable(codec, nid) &&
!snd_hda_jack_tbl_get(codec, nid))
snd_hda_codec_update_cache(codec, nid, 0,
AC_VERB_SET_UNSOLICITED_ENABLE, 0);
}
}
int snd_hda_gen_init(struct hda_codec *codec)
{
struct hda_gen_spec *spec = codec->spec;
@ -3550,6 +3567,8 @@ int snd_hda_gen_init(struct hda_codec *codec)
init_input_src(codec);
init_digital(codec);
clear_unsol_on_unused_pins(codec);
/* call init functions of standard auto-mute helpers */
snd_hda_gen_hp_automute(codec, NULL);
snd_hda_gen_line_automute(codec, NULL);