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>
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index e6f33ab..8103315 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -54,6 +54,7 @@
{ 0x09, 0xd810 },
{ 0x0a, 0x0060 },
{ 0x0b, 0x0000 },
+ { 0x0d, 0x2800 },
{ 0x0f, 0x0000 },
{ 0x19, 0x0a17 },
{ 0x20, 0x0020 },
@@ -62,6 +63,9 @@
{ 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 @@
{
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 @@
/*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);