[ALSA] Add dB scale information to ice1712 driver

Added the dB scale information for native digital volumes of ice1712 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 9b8325d65d8d..dc69392eafa3 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -62,6 +62,7 @@
 #include <sound/cs8427.h>
 #include <sound/info.h>
 #include <sound/initval.h>
+#include <sound/tlv.h>
 
 #include <sound/asoundef.h>
 
@@ -1377,6 +1378,7 @@ static int snd_ice1712_pro_mixer_volume_put(struct snd_kcontrol *kcontrol, struc
         return change;
 }
 
+static DECLARE_TLV_DB_SCALE(db_scale_playback, -14400, 150, 0);
 
 static struct snd_kcontrol_new snd_ice1712_multi_playback_ctrls[] __devinitdata = {
         {
@@ -1390,12 +1392,15 @@ static struct snd_kcontrol_new snd_ice1712_multi_playback_ctrls[] __devinitdata
         },
         {
                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                 .name = "Multi Playback Volume",
                 .info = snd_ice1712_pro_mixer_volume_info,
                 .get = snd_ice1712_pro_mixer_volume_get,
                 .put = snd_ice1712_pro_mixer_volume_put,
                 .private_value = 0,
                 .count = 10,
+                .tlv = { .p = db_scale_playback }
         },
 };
 
@@ -1420,11 +1425,14 @@ static struct snd_kcontrol_new snd_ice1712_multi_capture_spdif_switch __devinitd
 
 static struct snd_kcontrol_new snd_ice1712_multi_capture_analog_volume __devinitdata = {
         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         .name = "H/W Multi Capture Volume",
         .info = snd_ice1712_pro_mixer_volume_info,
         .get = snd_ice1712_pro_mixer_volume_get,
         .put = snd_ice1712_pro_mixer_volume_put,
         .private_value = 10,
+        .tlv = { .p = db_scale_playback }
 };
 
 static struct snd_kcontrol_new snd_ice1712_multi_capture_spdif_volume __devinitdata = {