ALSA: hda - Add suffix argument to snd_hda_add_vmaster()

In most cases, the slave strings for vmaster are identical between
volumes and switches except for "xxx Volume" and "xxx Switch" suffix.
Now snd_hda_add_vmaster() takes the optional suffix argument so that
each string can be composed with the given suffix, and we can share the
slave name strings in both volume and switch calls nicely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 21 deletions

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 284e311040f..e5842fe1b1e 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -1442,25 +1442,9 @@ static const struct hda_pcm_stream via_pcm_digital_capture = {
 /*
  * slave controls for virtual master
  */
-static const char * const via_slave_vols[] = {
-	"Front Playback Volume",
-	"Surround Playback Volume",
-	"Center Playback Volume",
-	"LFE Playback Volume",
-	"Side Playback Volume",
-	"Headphone Playback Volume",
-	"Speaker Playback Volume",
-	NULL,
-};
-
-static const char * const via_slave_sws[] = {
-	"Front Playback Switch",
-	"Surround Playback Switch",
-	"Center Playback Switch",
-	"LFE Playback Switch",
-	"Side Playback Switch",
-	"Headphone Playback Switch",
-	"Speaker Playback Switch",
+static const char * const via_slave_pfxs[] = {
+	"Front", "Surround", "Center", "LFE", "Side",
+	"Headphone", "Speaker",
 	NULL,
 };
 
@@ -1505,13 +1489,15 @@ static int via_build_controls(struct hda_codec *codec)
 		snd_hda_set_vmaster_tlv(codec, spec->multiout.dac_nids[0],
 					HDA_OUTPUT, vmaster_tlv);
 		err = snd_hda_add_vmaster(codec, "Master Playback Volume",
-					  vmaster_tlv, via_slave_vols);
+					  vmaster_tlv, via_slave_pfxs,
+					  "Playback Volume");
 		if (err < 0)
 			return err;
 	}
 	if (!snd_hda_find_mixer_ctl(codec, "Master Playback Switch")) {
 		err = snd_hda_add_vmaster(codec, "Master Playback Switch",
-					  NULL, via_slave_sws);
+					  NULL, via_slave_pfxs,
+					  "Playback Switch");
 		if (err < 0)
 			return err;
 	}