ALSA: HDA: Fix DAC assignment for secondary headphone on Sigmatel/IDT
If we run out of DACs when trying to assign a DAC to a secondary
headphone, prefer the DAC of the first headphone to the primary
(usually line out) DAC.
BugLink: http://bugs.launchpad.net/bugs/845275
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index dd977b6..1e0b338 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2972,8 +2972,9 @@
static hda_nid_t get_unassigned_dac(struct hda_codec *codec, hda_nid_t nid)
{
struct sigmatel_spec *spec = codec->spec;
+ struct auto_pin_cfg *cfg = &spec->autocfg;
int j, conn_len;
- hda_nid_t conn[HDA_MAX_CONNECTIONS];
+ hda_nid_t conn[HDA_MAX_CONNECTIONS], fallback_dac;
unsigned int wcaps, wtype;
conn_len = snd_hda_get_connections(codec, nid, conn,
@@ -3001,10 +3002,21 @@
return conn[j];
}
}
- /* if all DACs are already assigned, connect to the primary DAC */
+
+ /* if all DACs are already assigned, connect to the primary DAC,
+ unless we're assigning a secondary headphone */
+ fallback_dac = spec->multiout.dac_nids[0];
+ if (spec->multiout.hp_nid) {
+ for (j = 0; j < cfg->hp_outs; j++)
+ if (cfg->hp_pins[j] == nid) {
+ fallback_dac = spec->multiout.hp_nid;
+ break;
+ }
+ }
+
if (conn_len > 1) {
for (j = 0; j < conn_len; j++) {
- if (conn[j] == spec->multiout.dac_nids[0]) {
+ if (conn[j] == fallback_dac) {
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_CONNECT_SEL, j);
break;