Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bc6c4e45 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
Browse files

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: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 61a414c4

sound/soc/codecs/rt286.c

+19 −1
Original line number Diff line number Diff line
@@ -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);

sound/soc/codecs/rt286.h

+5 −0
Original line number Diff line number Diff line
@@ -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