[alsa-devel] [PATCH 15/22] ASoC: tas2552: Correct the Speaker Driver Playback Volume (PGA_GAIN)

Peter Ujfalusi peter.ujfalusi at ti.com
Thu Jun 4 14:22:39 CEST 2015


The last parameter for DECLARE_TLV_DB_SCALE() is to tell if the gain will
be muted or not when it is set to raw 0. IN this case it is not muted.
The PGA_GAIN is in 0-4 bits in the register. Fix the offset in the
SOC_SINGLE_TLV() for this.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
 sound/soc/codecs/tas2552.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index 264df631b130..fe2e4d384a00 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -406,11 +406,11 @@ static struct snd_soc_dai_driver tas2552_dai[] = {
 /*
  * DAC digital volumes. From -7 to 24 dB in 1 dB steps
  */
-static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 24);
+static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 0);
 
 static const struct snd_kcontrol_new tas2552_snd_controls[] = {
 	SOC_SINGLE_TLV("Speaker Driver Playback Volume",
-			 TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv),
+			 TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv),
 };
 
 static const struct reg_default tas2552_init_regs[] = {
-- 
2.4.2



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