ASoC: jz4740-codec: Add dB information

Add dB TLV ranges for the various volume controls.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 19 insertions, 6 deletions

diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
index 85d9cabe6d55..51b4f99bbd6a 100644
--- a/sound/soc/codecs/jz4740.c
+++ b/sound/soc/codecs/jz4740.c
@@ -24,6 +24,7 @@
 #include <sound/pcm_params.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
+#include <sound/tlv.h>
 
 #define JZ4740_REG_CODEC_1 0x0
 #define JZ4740_REG_CODEC_2 0x1
@@ -95,15 +96,27 @@ static int jz4740_codec_write(struct snd_soc_codec *codec, unsigned int reg,
         return 0;
 }
 
+static const unsigned int jz4740_mic_tlv[] = {
+        TLV_DB_RANGE_HEAD(2),
+        0, 2, TLV_DB_SCALE_ITEM(0, 600, 0),
+        3, 3, TLV_DB_SCALE_ITEM(2000, 0, 0),
+};
+
+static const DECLARE_TLV_DB_SCALE(jz4740_out_tlv, 0, 200, 0);
+static const DECLARE_TLV_DB_SCALE(jz4740_in_tlv, -3450, 150, 0);
+
 static const struct snd_kcontrol_new jz4740_codec_controls[] = {
-        SOC_SINGLE("Master Playback Volume", JZ4740_REG_CODEC_2,
-                        JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0),
-        SOC_SINGLE("Master Capture Volume", JZ4740_REG_CODEC_2,
-                        JZ4740_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0),
+        SOC_SINGLE_TLV("Master Playback Volume", JZ4740_REG_CODEC_2,
+                        JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0,
+                        jz4740_out_tlv),
+        SOC_SINGLE_TLV("Master Capture Volume", JZ4740_REG_CODEC_2,
+                        JZ4740_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0,
+                        jz4740_in_tlv),
         SOC_SINGLE("Master Playback Switch", JZ4740_REG_CODEC_1,
                         JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
-        SOC_SINGLE("Mic Capture Volume", JZ4740_REG_CODEC_2,
-                        JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0),
+        SOC_SINGLE_TLV("Mic Capture Volume", JZ4740_REG_CODEC_2,
+                        JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0,
+                        jz4740_mic_tlv),
 };
 
 static const struct snd_kcontrol_new jz4740_codec_output_controls[] = {