diff options
Diffstat (limited to 'sound/pci/hda')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index b56ca4019392..e5fdb64eb02c 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -534,6 +534,22 @@ static int stac92xx_build_pcms(struct hda_codec *codec) return 0; } +static unsigned int stac92xx_get_vref(struct hda_codec *codec, hda_nid_t nid) +{ + unsigned int pincap = snd_hda_param_read(codec, nid, + AC_PAR_PIN_CAP); + pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; + if (pincap & AC_PINCAP_VREF_100) + return AC_PINCTL_VREF_100; + if (pincap & AC_PINCAP_VREF_80) + return AC_PINCTL_VREF_80; + if (pincap & AC_PINCAP_VREF_50) + return AC_PINCTL_VREF_50; + if (pincap & AC_PINCAP_VREF_GRD) + return AC_PINCTL_VREF_GRD; + return 0; +} + static void stac92xx_auto_set_pinctl(struct hda_codec *codec, hda_nid_t nid, int pin_type) { @@ -571,9 +587,12 @@ static int stac92xx_io_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_ if (val) stac92xx_auto_set_pinctl(codec, nid, AC_PINCTL_OUT_EN); - else - stac92xx_auto_set_pinctl(codec, nid, AC_PINCTL_IN_EN); - + else { + unsigned int pinctl = AC_PINCTL_IN_EN; + if (io_idx) /* set VREF for mic */ + pinctl |= stac92xx_get_vref(codec, nid); + stac92xx_auto_set_pinctl(codec, nid, pinctl); + } return 1; } @@ -951,9 +970,13 @@ static int stac92xx_init(struct hda_codec *codec) stac92xx_auto_init_hp_out(codec); } for (i = 0; i < AUTO_PIN_LAST; i++) { - if (cfg->input_pins[i]) - stac92xx_auto_set_pinctl(codec, cfg->input_pins[i], - AC_PINCTL_IN_EN); + hda_nid_t nid = cfg->input_pins[i]; + if (nid) { + unsigned int pinctl = AC_PINCTL_IN_EN; + if (i == AUTO_PIN_MIC || i == AUTO_PIN_FRONT_MIC) + pinctl |= stac92xx_get_vref(codec, nid); + stac92xx_auto_set_pinctl(codec, nid, pinctl); + } } if (cfg->dig_out_pin) stac92xx_auto_set_pinctl(codec, cfg->dig_out_pin, |