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ASoC: RT286: Fix silent at the beginning of stream

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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>
This commit is contained in:
Bard Liao 2014-07-07 19:15:30 +08:00 committed by Mark Brown
parent 61a414c412
commit bc6c4e455a
2 changed files with 24 additions and 1 deletions
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20
sound/soc/codecs/rt286.c
View file

@ -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);

5
sound/soc/codecs/rt286.h
View file

@ -127,6 +127,7 @@
#define RT286_I2S_CTRL1 0x09
#define RT286_I2S_CTRL2 0x0a
#define RT286_CLK_DIV 0x0b
#define RT286_DC_GAIN 0x0d
#define RT286_POWER_CTRL3 0x0f
#define RT286_MIC1_DET_CTRL 0x19
#define RT286_MISC_CTRL1 0x20
@ -135,6 +136,10 @@
#define RT286_CBJ_CTRL1 0x4f
#define RT286_CBJ_CTRL2 0x50
#define RT286_PLL_CTRL 0x63
#define RT286_DEPOP_CTRL1 0x66
#define RT286_DEPOP_CTRL2 0x67
#define RT286_DEPOP_CTRL3 0x68
#define RT286_DEPOP_CTRL4 0x69
/* SPDIF (0x06) */
#define RT286_SPDIF_SEL_SFT 0