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Commit 6879db76 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
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ASoC: rt286: reduce power consumption 

This patch will optimize the power consumption of rt286.
Signed-off-by: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f114040e
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Showing with 155 additions and 56 deletions
sound/soc/codecs/rt286.c
View file @ 6879db76
......@@ -36,11 +36,13 @@
struct rt286_priv {
struct regmap *regmap;
struct snd_soc_codec *codec;
struct rt286_platform_data pdata;
struct i2c_client *i2c;
struct snd_soc_jack *jack;
struct delayed_work jack_detect_work;
int sys_clk;
int clk_id;
struct reg_default *index_cache;
};
......@@ -298,7 +300,6 @@ static int rt286_support_power_controls[] = {
static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
{
unsigned int val, buf;
int i;
*hp = false;
*mic = false;
......@@ -309,67 +310,44 @@ static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
if (*hp) {
/* power on HV,VERF */
regmap_update_bits(rt286->regmap,
RT286_POWER_CTRL1, 0x1001, 0x0);
RT286_DC_GAIN, 0x200, 0x200);
snd_soc_dapm_force_enable_pin(&rt286->codec->dapm,
"HV");
snd_soc_dapm_force_enable_pin(&rt286->codec->dapm,
"VREF");
/* power LDO1 */
regmap_update_bits(rt286->regmap,
RT286_POWER_CTRL2, 0x4, 0x4);
regmap_write(rt286->regmap, RT286_SET_MIC1, 0x24);
regmap_read(rt286->regmap, RT286_CBJ_CTRL2, &val);
snd_soc_dapm_force_enable_pin(&rt286->codec->dapm,
"LDO1");
snd_soc_dapm_sync(&rt286->codec->dapm);
msleep(200);
i = 40;
while (((val & 0x0800) == 0) && (i > 0)) {
regmap_read(rt286->regmap,
RT286_CBJ_CTRL2, &val);
i--;
msleep(20);
}
regmap_write(rt286->regmap, RT286_SET_MIC1, 0x24);
msleep(50);
if (0x0400 == (val & 0x0700)) {
*mic = false;
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1, 0xfcc0, 0xd400);
msleep(300);
regmap_read(rt286->regmap, RT286_CBJ_CTRL2, &val);
regmap_write(rt286->regmap,
RT286_SET_MIC1, 0x20);
/* power off HV,VERF */
regmap_update_bits(rt286->regmap,
RT286_POWER_CTRL1, 0x1001, 0x1001);
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL3, 0xc000, 0x0000);
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1, 0x0030, 0x0000);
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL2, 0xc000, 0x0000);
} else if ((0x0200 == (val & 0x0700)) ||
(0x0100 == (val & 0x0700))) {
if (0x0070 == (val & 0x0070)) {
*mic = true;
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL3, 0xc000, 0x8000);
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1, 0x0030, 0x0020);
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL2, 0xc000, 0x8000);
} else {
*mic = false;
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1, 0xfcc0, 0xe400);
msleep(300);
regmap_read(rt286->regmap,
RT286_CBJ_CTRL2, &val);
if (0x0070 == (val & 0x0070))
*mic = true;
else
*mic = false;
}
regmap_update_bits(rt286->regmap,
RT286_MISC_CTRL1,
0x0060, 0x0000);
} else {
regmap_update_bits(rt286->regmap,
RT286_MISC_CTRL1,
0x0060, 0x0020);
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL3,
0xc000, 0x8000);
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1,
0x0030, 0x0020);
regmap_update_bits(rt286->regmap,
RT286_A_BIAS_CTRL2,
0xc000, 0x8000);
RT286_DC_GAIN, 0x200, 0x0);
} else {
*mic = false;
regmap_write(rt286->regmap, RT286_SET_MIC1, 0x20);
}
} else {
regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf);
......@@ -378,6 +356,12 @@ static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
*mic = buf & 0x80000000;
}
snd_soc_dapm_disable_pin(&rt286->codec->dapm, "HV");
snd_soc_dapm_disable_pin(&rt286->codec->dapm, "VREF");
if (!*hp)
snd_soc_dapm_disable_pin(&rt286->codec->dapm, "LDO1");
snd_soc_dapm_sync(&rt286->codec->dapm);
return 0;
}
......@@ -415,6 +399,17 @@ int rt286_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
}
EXPORT_SYMBOL_GPL(rt286_mic_detect);
static int is_mclk_mode(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(source->codec);
if (rt286->clk_id == RT286_SCLK_S_MCLK)
return 1;
else
return 0;
}
static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6350, 50, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);
......@@ -568,7 +563,84 @@ static int rt286_adc_event(struct snd_soc_dapm_widget *w,
return 0;
}
static int rt286_vref_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
snd_soc_update_bits(codec,
RT286_CBJ_CTRL1, 0x0400, 0x0000);
mdelay(50);
break;
default:
return 0;
}
return 0;
}
static int rt286_ldo2_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(codec, RT286_POWER_CTRL2, 0x38, 0x08);
break;
case SND_SOC_DAPM_PRE_PMD:
snd_soc_update_bits(codec, RT286_POWER_CTRL2, 0x38, 0x30);
break;
default:
return 0;
}
return 0;
}
static int rt286_mic1_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
snd_soc_update_bits(codec,
RT286_A_BIAS_CTRL3, 0xc000, 0x8000);
snd_soc_update_bits(codec,
RT286_A_BIAS_CTRL2, 0xc000, 0x8000);
break;
case SND_SOC_DAPM_POST_PMD:
snd_soc_update_bits(codec,
RT286_A_BIAS_CTRL3, 0xc000, 0x0000);
snd_soc_update_bits(codec,
RT286_A_BIAS_CTRL2, 0xc000, 0x0000);
break;
default:
return 0;
}
return 0;
}
static const struct snd_soc_dapm_widget rt286_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY_S("HV", 1, RT286_POWER_CTRL1,
12, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF", RT286_POWER_CTRL1,
0, 1, rt286_vref_event, SND_SOC_DAPM_PRE_PMU),
SND_SOC_DAPM_SUPPLY_S("LDO1", 1, RT286_POWER_CTRL2,
2, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("LDO2", 2, RT286_POWER_CTRL1,
13, 1, rt286_ldo2_event, SND_SOC_DAPM_PRE_PMD |
SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_SUPPLY("MCLK MODE", RT286_PLL_CTRL1,
5, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MIC1 Input Buffer", SND_SOC_NOPM,
0, 0, rt286_mic1_event, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD),
/* Input Lines */
SND_SOC_DAPM_INPUT("DMIC1 Pin"),
SND_SOC_DAPM_INPUT("DMIC2 Pin"),
......@@ -642,6 +714,25 @@ static const struct snd_soc_dapm_widget rt286_dapm_widgets[] = {
};
static const struct snd_soc_dapm_route rt286_dapm_routes[] = {
{"ADC 0", NULL, "MCLK MODE", is_mclk_mode},
{"ADC 1", NULL, "MCLK MODE", is_mclk_mode},
{"Front", NULL, "MCLK MODE", is_mclk_mode},
{"Surround", NULL, "MCLK MODE", is_mclk_mode},
{"HP Power", NULL, "LDO1"},
{"HP Power", NULL, "LDO2"},
{"MIC1", NULL, "LDO1"},
{"MIC1", NULL, "LDO2"},
{"MIC1", NULL, "HV"},
{"MIC1", NULL, "VREF"},
{"MIC1", NULL, "MIC1 Input Buffer"},
{"SPO", NULL, "LDO1"},
{"SPO", NULL, "LDO2"},
{"SPO", NULL, "HV"},
{"SPO", NULL, "VREF"},
{"DMIC1", NULL, "DMIC1 Pin"},
{"DMIC2", NULL, "DMIC2 Pin"},
{"DMIC1", NULL, "DMIC Receiver"},
......@@ -880,6 +971,7 @@ static int rt286_set_dai_sysclk(struct snd_soc_dai *dai,
}
rt286->sys_clk = freq;
rt286->clk_id = clk_id;
return 0;
}
......@@ -915,13 +1007,18 @@ static int rt286_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_ON:
mdelay(10);
snd_soc_update_bits(codec,
RT286_CBJ_CTRL1, 0x0400, 0x0400);
snd_soc_update_bits(codec,
RT286_DC_GAIN, 0x200, 0x0);
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);
RT286_CBJ_CTRL1, 0x0400, 0x0000);
break;
default:
......@@ -962,6 +1059,7 @@ static int rt286_probe(struct snd_soc_codec *codec)
{
struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec);
rt286->codec = codec;
codec->dapm.bias_level = SND_SOC_BIAS_OFF;
if (rt286->i2c->irq) {
......@@ -1152,7 +1250,6 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
if (!rt286->pdata.cbj_en) {
regmap_write(rt286->regmap, RT286_CBJ_CTRL2, 0x0000);
regmap_write(rt286->regmap, RT286_MIC1_DET_CTRL, 0x0816);
regmap_write(rt286->regmap, RT286_MISC_CTRL1, 0x0000);
regmap_update_bits(rt286->regmap,
RT286_CBJ_CTRL1, 0xf000, 0xb000);
} else {
......@@ -1169,8 +1266,10 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
mdelay(10);
/*Power down LDO2*/
regmap_update_bits(rt286->regmap, RT286_POWER_CTRL2, 0x8, 0x0);
regmap_write(rt286->regmap, RT286_MISC_CTRL1, 0x0000);
/*Power down LDO, VREF*/
regmap_update_bits(rt286->regmap, RT286_POWER_CTRL2, 0xc, 0x0);
regmap_update_bits(rt286->regmap, RT286_POWER_CTRL1, 0x1001, 0x1001);
/*Set depop parameter*/
regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL2, 0x403a, 0x401a);
......
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