aboutsummaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2013-05-31 19:55:54 +0200
committerTakashi Iwai <tiwai@suse.de>2013-06-03 11:33:06 +0200
commit05909d5c679cf7c9a8a5bc663677c066a546894f (patch)
tree4315727f41d21f9fb380d591a5dccf6f9f7290dc /sound
parent77afe0e94884ae40de29cd813a1fb7ddee583591 (diff)
downloadvexpress-lsk-05909d5c679cf7c9a8a5bc663677c066a546894f.tar.gz
ALSA: hda - Add keep_eapd_on flag to generic parser
VT1802 codec seems to reset EAPD of other pins in the hardware level, and this was another reason of the silent headphone output on some machines. As a workaround, introduce a new flag indicating to keep the EPAD on to the generic parser, and set it in patch_via.c. Reported-by: Alex Riesen <raa.lkml@gmail.com> Cc: <stable@vger.kernel.org> [v3.9] Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_generic.c2
-rw-r--r--sound/pci/hda/hda_generic.h1
-rw-r--r--sound/pci/hda/patch_via.c1
3 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index fbc10b60be0..cfdb917d74f 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -788,6 +788,8 @@ static void set_pin_eapd(struct hda_codec *codec, hda_nid_t pin, bool enable)
return;
if (codec->inv_eapd)
enable = !enable;
+ if (spec->keep_eapd_on && !enable)
+ return;
snd_hda_codec_update_cache(codec, pin, 0,
AC_VERB_SET_EAPD_BTLENABLE,
enable ? 0x02 : 0x00);
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 54e66516037..76200314ee9 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -222,6 +222,7 @@ struct hda_gen_spec {
unsigned int multi_cap_vol:1; /* allow multiple capture xxx volumes */
unsigned int inv_dmic_split:1; /* inverted dmic w/a for conexant */
unsigned int own_eapd_ctl:1; /* set EAPD by own function */
+ unsigned int keep_eapd_on:1; /* don't turn off EAPD automatically */
unsigned int vmaster_mute_enum:1; /* add vmaster mute mode enum */
unsigned int indep_hp:1; /* independent HP supported */
unsigned int prefer_hp_amp:1; /* enable HP amp for speaker if any */
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 75fdb51345a..a6c38568c9d 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -136,6 +136,7 @@ static struct via_spec *via_new_spec(struct hda_codec *codec)
spec->codec_type = VT1708S;
spec->no_pin_power_ctl = 1;
spec->gen.indep_hp = 1;
+ spec->gen.keep_eapd_on = 1;
spec->gen.pcm_playback_hook = via_playback_pcm_hook;
return spec;
}