From 973e4972f9f0fe8f854451f7559c847a8cdc8bc7 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 20 Dec 2012 15:16:09 +0100 Subject: [PATCH] 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 --- sound/pci/hda/hda_generic.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index a5c4bc0..b7b8d7e 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -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); -- 2.7.4