ALSA: snd-aoa: handle master-amp if present
Some machines have a master amp GPIO that needs to be toggled to
get sound output, in addition to speaker/headphone/line-out amps.
This makes snd-aoa handle it, if present in the device tree, thus
making snd-aoa be able to output sound on PowerMac3,6, which was
previously handled by snd-powermac which also doesn't use the
master amp GPIO.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/aoa/fabrics/layout.c b/sound/aoa/fabrics/layout.c
index d9b1d22..fbf5c93 100644
--- a/sound/aoa/fabrics/layout.c
+++ b/sound/aoa/fabrics/layout.c
@@ -600,6 +600,7 @@
struct snd_kcontrol *headphone_ctrl;
struct snd_kcontrol *lineout_ctrl;
struct snd_kcontrol *speaker_ctrl;
+ struct snd_kcontrol *master_ctrl;
struct snd_kcontrol *headphone_detected_ctrl;
struct snd_kcontrol *lineout_detected_ctrl;
@@ -651,6 +652,7 @@
AMP_CONTROL(headphone, "Headphone Switch");
AMP_CONTROL(speakers, "Speakers Switch");
AMP_CONTROL(lineout, "Line-Out Switch");
+AMP_CONTROL(master, "Master Switch");
static int detect_choice_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
@@ -891,6 +893,11 @@
lineout = codec->gpio->methods->get_detect(codec->gpio,
AOA_NOTIFY_LINE_OUT);
+ if (codec->gpio->methods->set_master) {
+ ctl = snd_ctl_new1(&master_ctl, codec->gpio);
+ ldev->master_ctrl = ctl;
+ aoa_snd_ctl_add(ctl);
+ }
while (cc->connected) {
if (cc->connected & CC_SPEAKERS) {
if (headphones <= 0 && lineout <= 0)