ALSA: ASoC: Add TLV information to the LM4857 controls on the GTA01

Signed-off-by: Mike Montour <mail@mmontour.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/soc/s3c24xx/neo1973_wm8753.c

@@ -22,6 +22,7 @@
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
+#include <sound/tlv.h>
 
 #include <asm/mach-types.h>
 #include <asm/hardware/scoop.h>
@@ -474,13 +475,16 @@ static const struct soc_enum neo_scenario_enum[] = {
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios),
 };
 
+static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
+static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
+
 static const struct snd_kcontrol_new wm8753_neo1973_controls[] = {
-	SOC_SINGLE_EXT("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
-		lm4857_get_reg, lm4857_set_reg),
-	SOC_SINGLE_EXT("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
-		lm4857_get_reg, lm4857_set_reg),
-	SOC_SINGLE_EXT("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
-		lm4857_get_reg, lm4857_set_reg),
+	SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
+		lm4857_get_reg, lm4857_set_reg, stereo_tlv),
+	SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
+		lm4857_get_reg, lm4857_set_reg, stereo_tlv),
+	SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
+		lm4857_get_reg, lm4857_set_reg, mono_tlv),
 	SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0],
 		lm4857_get_mode, lm4857_set_mode),
 	SOC_ENUM_EXT("Neo Mode", neo_scenario_enum[0],