[PATCH] ASoC: rt5651: Enable jack detection on JD* pins
From: Carlo Caione
Date: Fri Oct 20 2017 - 07:18:55 EST
Enable jack detection for the RT5651 codec on the JD* pins.
Signed-off-by: Carlo Caione <carlo@xxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
include/sound/rt5651.h | 8 +++
sound/soc/codecs/rt5651.c | 168 +++++++++++++++++++++++++++++++++++++++++++++-
sound/soc/codecs/rt5651.h | 4 ++
3 files changed, 178 insertions(+), 2 deletions(-)
diff --git a/include/sound/rt5651.h b/include/sound/rt5651.h
index d35de758dfb5..18b79a761f10 100644
--- a/include/sound/rt5651.h
+++ b/include/sound/rt5651.h
@@ -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
diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c
index da60b28ba3df..2f0d0055c72f 100644
--- a/sound/soc/codecs/rt5651.c
+++ b/sound/soc/codecs/rt5651.c
@@ -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;
diff --git a/sound/soc/codecs/rt5651.h b/sound/soc/codecs/rt5651.h
index 1bd33cfa6411..4f8b202121d7 100644
--- a/sound/soc/codecs/rt5651.h
+++ b/sound/soc/codecs/rt5651.h
@@ -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__ */
--
2.14.1