diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 239cdd855dfe..187533e477c6 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1630,10 +1630,24 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg, nid = codec->start_nid; for (i = 0; i < codec->num_nodes; i++, nid++) { - if (get_wcaps(codec, nid) & AC_WCAP_POWER) + if (get_wcaps(codec, nid) & AC_WCAP_POWER) { + unsigned int pincap; + /* + * don't power down the widget if it controls eapd + * and EAPD_BTLENABLE is set. + */ + pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP); + if (pincap & AC_PINCAP_EAPD) { + int eapd = snd_hda_codec_read(codec, nid, + 0, AC_VERB_GET_EAPD_BTLENABLE, 0); + eapd &= 0x02; + if (power_state == AC_PWRST_D3 && eapd) + continue; + } snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, power_state); + } } if (power_state == AC_PWRST_D0) { |