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authorBard Liao <bardliao@realtek.com>2014-07-07 19:15:30 +0800
committerMark Brown <broonie@linaro.org>2014-07-07 16:38:44 +0200
commitbc6c4e455af9037bae619340bc95bf569806ba8b (patch)
treee5d9c7545b2690ecfb11ac4efa2f3cb75f640a12 /sound/soc/codecs/rt286.c
parent61a414c412886bdb98c8842c00b2f0a3d4436b12 (diff)
downloadblackbird-op-linux-bc6c4e455af9037bae619340bc95bf569806ba8b.tar.gz
blackbird-op-linux-bc6c4e455af9037bae619340bc95bf569806ba8b.zip
ASoC: RT286: Fix silent at the beginning of stream
This patch fix the issue that the output is almost silent at the beginning of starting a playback. Signed-off-by: Bard Liao <bardliao@realtek.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/rt286.c')
-rw-r--r--sound/soc/codecs/rt286.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index e6f33ab78954..81033154a412 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -54,6 +54,7 @@ static struct reg_default rt286_index_def[] = {
{ 0x09, 0xd810 },
{ 0x0a, 0x0060 },
{ 0x0b, 0x0000 },
+ { 0x0d, 0x2800 },
{ 0x0f, 0x0000 },
{ 0x19, 0x0a17 },
{ 0x20, 0x0020 },
@@ -62,6 +63,9 @@ static struct reg_default rt286_index_def[] = {
{ 0x4f, 0x50e9 },
{ 0x50, 0x2c00 },
{ 0x63, 0x2902 },
+ { 0x67, 0x1111 },
+ { 0x68, 0x1016 },
+ { 0x69, 0x273f },
};
#define INDEX_CACHE_SIZE ARRAY_SIZE(rt286_index_def)
@@ -902,14 +906,23 @@ static int rt286_set_bias_level(struct snd_soc_codec *codec,
{
switch (level) {
case SND_SOC_BIAS_PREPARE:
- if (SND_SOC_BIAS_STANDBY == codec->dapm.bias_level)
+ if (SND_SOC_BIAS_STANDBY == codec->dapm.bias_level) {
snd_soc_write(codec,
RT286_SET_AUDIO_POWER, AC_PWRST_D0);
+ snd_soc_update_bits(codec,
+ RT286_DC_GAIN, 0x200, 0x200);
+ }
+ break;
+
+ case SND_SOC_BIAS_ON:
+ mdelay(10);
break;
case SND_SOC_BIAS_STANDBY:
snd_soc_write(codec,
RT286_SET_AUDIO_POWER, AC_PWRST_D3);
+ snd_soc_update_bits(codec,
+ RT286_DC_GAIN, 0x200, 0x0);
break;
default:
@@ -1152,6 +1165,11 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
/*Power down LDO2*/
regmap_update_bits(rt286->regmap, RT286_POWER_CTRL2, 0x8, 0x0);
+ /*Set depop parameter*/
+ regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL2, 0x403a, 0x401a);
+ regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL3, 0xf777, 0x4737);
+ regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL4, 0x00ff, 0x003f);
+
if (rt286->i2c->irq) {
regmap_update_bits(rt286->regmap,
RT286_IRQ_CTRL, 0x2, 0x2);
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