diff options
Diffstat (limited to 'sound/pci/hda/hda_auto_parser.c')
| -rw-r--r-- | sound/pci/hda/hda_auto_parser.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c index 33b3ece224c6..a4810c7437bd 100644 --- a/sound/pci/hda/hda_auto_parser.c +++ b/sound/pci/hda/hda_auto_parser.c @@ -97,6 +97,28 @@ static void reorder_outputs(unsigned int nums, hda_nid_t *pins) } } +/* check whether the given pin has a proper pin I/O capability bit */ +static bool check_pincap_validity(struct hda_codec *codec, hda_nid_t pin, + unsigned int dev) +{ + unsigned int pincap = snd_hda_query_pin_caps(codec, pin); + + /* some old hardware don't return the proper pincaps */ + if (!pincap) + return true; + + switch (dev) { + case AC_JACK_LINE_OUT: + case AC_JACK_SPEAKER: + case AC_JACK_HP_OUT: + case AC_JACK_SPDIF_OUT: + case AC_JACK_DIG_OTHER_OUT: + return !!(pincap & AC_PINCAP_OUT); + default: + return !!(pincap & AC_PINCAP_IN); + } +} + /* * Parse all pin widgets and store the useful pin nids to cfg * @@ -164,6 +186,9 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec, dev = AC_JACK_SPEAKER; } + if (!check_pincap_validity(codec, nid, dev)) + continue; + switch (dev) { case AC_JACK_LINE_OUT: seq = get_defcfg_sequence(def_conf); |