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-rw-r--r--Documentation/sound/hd-audio/notes.rst2
-rw-r--r--sound/pci/hda/hda_generic.c7
-rw-r--r--sound/pci/hda/hda_generic.h1
3 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst
index 9eeb9b468706..f59c3cdbfaf4 100644
--- a/Documentation/sound/hd-audio/notes.rst
+++ b/Documentation/sound/hd-audio/notes.rst
@@ -494,6 +494,8 @@ add_hp_mic (bool)
hp_mic_detect (bool)
enable/disable the hp/mic shared input for a single built-in mic
case; default true
+vmaster (bool)
+ enable/disable the virtual Master control; default true
mixer_nid (int)
specifies the widget NID of the analog-loopback mixer
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 443832870a44..2842c82363c0 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -196,6 +196,9 @@ static void parse_user_hints(struct hda_codec *codec)
val = snd_hda_get_bool_hint(codec, "hp_mic_detect");
if (val >= 0)
spec->suppress_hp_mic_detect = !val;
+ val = snd_hda_get_bool_hint(codec, "vmaster");
+ if (val >= 0)
+ spec->suppress_vmaster = !val;
if (!snd_hda_get_int_hint(codec, "mixer_nid", &val))
spec->mixer_nid = val;
@@ -5033,7 +5036,7 @@ int snd_hda_gen_build_controls(struct hda_codec *codec)
}
/* if we have no master control, let's create it */
- if (!spec->no_analog &&
+ if (!spec->no_analog && !spec->suppress_vmaster &&
!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
err = snd_hda_add_vmaster(codec, "Master Playback Volume",
spec->vmaster_tlv, slave_pfxs,
@@ -5041,7 +5044,7 @@ int snd_hda_gen_build_controls(struct hda_codec *codec)
if (err < 0)
return err;
}
- if (!spec->no_analog &&
+ if (!spec->no_analog && !spec->suppress_vmaster &&
!snd_hda_find_mixer_ctl(codec, "Master Playback Switch")) {
err = __snd_hda_add_vmaster(codec, "Master Playback Switch",
NULL, slave_pfxs,
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index f66fc7e25e07..61772317de46 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -229,6 +229,7 @@ struct hda_gen_spec {
unsigned int add_jack_modes:1; /* add i/o jack mode enum ctls */
unsigned int power_down_unused:1; /* power down unused widgets */
unsigned int dac_min_mute:1; /* minimal = mute for DACs */
+ unsigned int suppress_vmaster:1; /* don't create vmaster kctls */
/* other internal flags */
unsigned int no_analog:1; /* digital I/O only */