From: Bard Liao bardliao@realtek.com

This patch will optimize the power consumption of rt286.

Signed-off-by: Bard Liao bardliao@realtek.com --- sound/soc/codecs/rt286.c | 211 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 155 insertions(+), 56 deletions(-)

diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c index 4aa555c..97daa80 100644 --- a/sound/soc/codecs/rt286.c +++ b/sound/soc/codecs/rt286.c @@ -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);