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ASoC: rt5651: Enable jack detection on JD* pins 

Enable jack detection for the RT5651 codec on the JD* pins.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Carlo Caione 2017-10-20 12:18:55 +01:00 committed by Mark Brown
parent be96fc54d2
commit 80bbe4a30b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 178 additions and 2 deletions
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8
include/sound/rt5651.h
View File

@ -11,11 +11,19 @@
#ifndef __LINUX_SND_RT5651_H
#define __LINUX_SND_RT5651_H
enum rt5651_jd_src {
RT5651_JD_NULL,
RT5651_JD1_1,
RT5651_JD1_2,
RT5651_JD2,
};
struct rt5651_platform_data {
/* IN2 can optionally be differential */
bool in2_diff;
bool dmic_en;
enum rt5651_jd_src jd_src;
};
#endif

168
sound/soc/codecs/rt5651.c
View File

@ -26,6 +26,7 @@
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/jack.h>
#include "rl6231.h"
#include "rt5651.h"
@ -880,6 +881,9 @@ static const struct snd_soc_dapm_widget rt5651_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("PLL1", RT5651_PWR_ANLG2,
RT5651_PWR_PLL_BIT, 0, NULL, 0),
/* Input Side */
SND_SOC_DAPM_SUPPLY("JD Power", RT5651_PWR_ANLG2,
RT5651_PWM_JD_M_BIT, 0, NULL, 0),
/* micbias */
SND_SOC_DAPM_SUPPLY("LDO", RT5651_PWR_ANLG1,
RT5651_PWR_LDO_BIT, 0, NULL, 0),
@ -1528,6 +1532,8 @@ static int rt5651_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
static int rt5651_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct rt5651_priv *rt5651 = snd_soc_codec_get_drvdata(codec);
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (SND_SOC_BIAS_STANDBY == snd_soc_codec_get_bias_level(codec)) {
@ -1556,8 +1562,13 @@ static int rt5651_set_bias_level(struct snd_soc_codec *codec,
snd_soc_write(codec, RT5651_PWR_DIG2, 0x0000);
snd_soc_write(codec, RT5651_PWR_VOL, 0x0000);
snd_soc_write(codec, RT5651_PWR_MIXER, 0x0000);
snd_soc_write(codec, RT5651_PWR_ANLG1, 0x0000);
snd_soc_write(codec, RT5651_PWR_ANLG2, 0x0000);
if (rt5651->pdata.jd_src) {
snd_soc_write(codec, RT5651_PWR_ANLG2, 0x0204);
snd_soc_write(codec, RT5651_PWR_ANLG1, 0x0002);
} else {
snd_soc_write(codec, RT5651_PWR_ANLG1, 0x0000);
snd_soc_write(codec, RT5651_PWR_ANLG2, 0x0000);
}
break;
default:
@ -1570,6 +1581,7 @@ static int rt5651_set_bias_level(struct snd_soc_codec *codec,
static int rt5651_probe(struct snd_soc_codec *codec)
{
struct rt5651_priv *rt5651 = snd_soc_codec_get_drvdata(codec);
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
rt5651->codec = codec;
@ -1585,6 +1597,15 @@ static int rt5651_probe(struct snd_soc_codec *codec)
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF);
if (rt5651->pdata.jd_src) {
snd_soc_dapm_force_enable_pin(dapm, "JD Power");
snd_soc_dapm_force_enable_pin(dapm, "LDO");
snd_soc_dapm_sync(dapm);
regmap_update_bits(rt5651->regmap, RT5651_MICBIAS,
0x38, 0x38);
}
return 0;
}
@ -1728,6 +1749,93 @@ static int rt5651_parse_dt(struct rt5651_priv *rt5651, struct device_node *np)
return 0;
}
static irqreturn_t rt5651_irq(int irq, void *data)
{
struct rt5651_priv *rt5651 = data;
queue_delayed_work(system_power_efficient_wq,
&rt5651->jack_detect_work, msecs_to_jiffies(250));
return IRQ_HANDLED;
}
static int rt5651_jack_detect(struct snd_soc_codec *codec, int jack_insert)
{
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
int jack_type;
if (jack_insert) {
snd_soc_dapm_force_enable_pin(dapm, "LDO");
snd_soc_dapm_sync(dapm);
snd_soc_update_bits(codec, RT5651_MICBIAS,
RT5651_MIC1_OVCD_MASK |
RT5651_MIC1_OVTH_MASK |
RT5651_PWR_CLK12M_MASK |
RT5651_PWR_MB_MASK,
RT5651_MIC1_OVCD_EN |
RT5651_MIC1_OVTH_600UA |
RT5651_PWR_MB_PU |
RT5651_PWR_CLK12M_PU);
msleep(100);
if (snd_soc_read(codec, RT5651_IRQ_CTRL2) & RT5651_MB1_OC_CLR)
jack_type = SND_JACK_HEADPHONE;
else
jack_type = SND_JACK_HEADSET;
snd_soc_update_bits(codec, RT5651_IRQ_CTRL2,
RT5651_MB1_OC_CLR, 0);
} else { /* jack out */
jack_type = 0;
snd_soc_update_bits(codec, RT5651_MICBIAS,
RT5651_MIC1_OVCD_MASK,
RT5651_MIC1_OVCD_DIS);
}
return jack_type;
}
static void rt5651_jack_detect_work(struct work_struct *work)
{
struct rt5651_priv *rt5651 =
container_of(work, struct rt5651_priv, jack_detect_work.work);
int report, val = 0;
if (!rt5651->codec)
return;
switch (rt5651->pdata.jd_src) {
case RT5651_JD1_1:
val = snd_soc_read(rt5651->codec, RT5651_INT_IRQ_ST) & 0x1000;
break;
case RT5651_JD1_2:
val = snd_soc_read(rt5651->codec, RT5651_INT_IRQ_ST) & 0x2000;
break;
case RT5651_JD2:
val = snd_soc_read(rt5651->codec, RT5651_INT_IRQ_ST) & 0x4000;
break;
default:
break;
}
report = rt5651_jack_detect(rt5651->codec, !val);
snd_soc_jack_report(rt5651->hp_jack, report, SND_JACK_HEADSET);
}
int rt5651_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *hp_jack)
{
struct rt5651_priv *rt5651 = snd_soc_codec_get_drvdata(codec);
rt5651->hp_jack = hp_jack;
rt5651_irq(0, rt5651);
return 0;
}
EXPORT_SYMBOL_GPL(rt5651_set_jack_detect);
static int rt5651_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@ -1779,6 +1887,59 @@ static int rt5651_i2c_probe(struct i2c_client *i2c,
rt5651->hp_mute = 1;
if (rt5651->pdata.jd_src) {
/* IRQ output on GPIO1 */
regmap_update_bits(rt5651->regmap, RT5651_GPIO_CTRL1,
RT5651_GP1_PIN_MASK, RT5651_GP1_PIN_IRQ);
switch (rt5651->pdata.jd_src) {
case RT5651_JD1_1:
regmap_update_bits(rt5651->regmap, RT5651_JD_CTRL2,
RT5651_JD_TRG_SEL_MASK,
RT5651_JD_TRG_SEL_JD1_1);
regmap_update_bits(rt5651->regmap, RT5651_IRQ_CTRL1,
RT5651_JD1_1_IRQ_EN,
RT5651_JD1_1_IRQ_EN);
break;
case RT5651_JD1_2:
regmap_update_bits(rt5651->regmap, RT5651_JD_CTRL2,
RT5651_JD_TRG_SEL_MASK,
RT5651_JD_TRG_SEL_JD1_2);
regmap_update_bits(rt5651->regmap, RT5651_IRQ_CTRL1,
RT5651_JD1_2_IRQ_EN,
RT5651_JD1_2_IRQ_EN);
break;
case RT5651_JD2:
regmap_update_bits(rt5651->regmap, RT5651_JD_CTRL2,
RT5651_JD_TRG_SEL_MASK,
RT5651_JD_TRG_SEL_JD2);
regmap_update_bits(rt5651->regmap, RT5651_IRQ_CTRL1,
RT5651_JD2_IRQ_EN,
RT5651_JD2_IRQ_EN);
break;
case RT5651_JD_NULL:
break;
default:
dev_warn(&i2c->dev, "Currently only JD1_1 / JD1_2 / JD2 are supported\n");
break;
}
}
INIT_DELAYED_WORK(&rt5651->jack_detect_work, rt5651_jack_detect_work);
if (i2c->irq) {
ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
rt5651_irq,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT, "rt5651", rt5651);
if (ret) {
dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret);
return ret;
}
}
ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5651,
rt5651_dai, ARRAY_SIZE(rt5651_dai));
@ -1787,6 +1948,9 @@ static int rt5651_i2c_probe(struct i2c_client *i2c,
static int rt5651_i2c_remove(struct i2c_client *i2c)
{
struct rt5651_priv *rt5651 = i2c_get_clientdata(i2c);
cancel_delayed_work_sync(&rt5651->jack_detect_work);
snd_soc_unregister_codec(&i2c->dev);
return 0;

4
sound/soc/codecs/rt5651.h
View File

@ -2062,6 +2062,8 @@ struct rt5651_priv {
struct snd_soc_codec *codec;
struct rt5651_platform_data pdata;
struct regmap *regmap;
struct snd_soc_jack *hp_jack;
struct delayed_work jack_detect_work;
int sysclk;
int sysclk_src;
@ -2077,4 +2079,6 @@ struct rt5651_priv {
bool hp_mute;
};
int rt5651_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *hp_jack);
#endif /* __RT5651_H__ */