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Diffstat (limited to 'sound/soc/codecs/max98090.c')
-rw-r--r--sound/soc/codecs/max98090.c146
1 files changed, 127 insertions, 19 deletions
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 4a063fa88526..d519294f57c7 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -1311,8 +1311,6 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
{"MIC1 Input", NULL, "MIC1"},
{"MIC2 Input", NULL, "MIC2"},
- {"DMICL", NULL, "DMICL_ENA"},
- {"DMICR", NULL, "DMICR_ENA"},
{"DMICL", NULL, "AHPF"},
{"DMICR", NULL, "AHPF"},
@@ -1370,6 +1368,8 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
{"DMIC Mux", "ADC", "ADCR"},
{"DMIC Mux", "DMIC", "DMICL"},
{"DMIC Mux", "DMIC", "DMICR"},
+ {"DMIC Mux", "DMIC", "DMICL_ENA"},
+ {"DMIC Mux", "DMIC", "DMICR_ENA"},
{"LBENL Mux", "Normal", "DMIC Mux"},
{"LBENL Mux", "Loopback", "LTENL Mux"},
@@ -1972,6 +1972,102 @@ static int max98090_dai_digital_mute(struct snd_soc_dai *codec_dai, int mute)
return 0;
}
+static int max98090_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (!max98090->master && dai->active == 1)
+ queue_delayed_work(system_power_efficient_wq,
+ &max98090->pll_det_enable_work,
+ msecs_to_jiffies(10));
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ if (!max98090->master && dai->active == 1)
+ schedule_work(&max98090->pll_det_disable_work);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static void max98090_pll_det_enable_work(struct work_struct *work)
+{
+ struct max98090_priv *max98090 =
+ container_of(work, struct max98090_priv,
+ pll_det_enable_work.work);
+ struct snd_soc_codec *codec = max98090->codec;
+ unsigned int status, mask;
+
+ /*
+ * Clear status register in order to clear possibly already occurred
+ * PLL unlock. If PLL hasn't still locked, the status will be set
+ * again and PLL unlock interrupt will occur.
+ * Note this will clear all status bits
+ */
+ regmap_read(max98090->regmap, M98090_REG_DEVICE_STATUS, &status);
+
+ /*
+ * Queue jack work in case jack state has just changed but handler
+ * hasn't run yet
+ */
+ regmap_read(max98090->regmap, M98090_REG_INTERRUPT_S, &mask);
+ status &= mask;
+ if (status & M98090_JDET_MASK)
+ queue_delayed_work(system_power_efficient_wq,
+ &max98090->jack_work,
+ msecs_to_jiffies(100));
+
+ /* Enable PLL unlock interrupt */
+ snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
+ M98090_IULK_MASK,
+ 1 << M98090_IULK_SHIFT);
+}
+
+static void max98090_pll_det_disable_work(struct work_struct *work)
+{
+ struct max98090_priv *max98090 =
+ container_of(work, struct max98090_priv, pll_det_disable_work);
+ struct snd_soc_codec *codec = max98090->codec;
+
+ cancel_delayed_work_sync(&max98090->pll_det_enable_work);
+
+ /* Disable PLL unlock interrupt */
+ snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
+ M98090_IULK_MASK, 0);
+}
+
+static void max98090_pll_work(struct work_struct *work)
+{
+ struct max98090_priv *max98090 =
+ container_of(work, struct max98090_priv, pll_work);
+ struct snd_soc_codec *codec = max98090->codec;
+
+ if (!snd_soc_codec_is_active(codec))
+ return;
+
+ dev_info(codec->dev, "PLL unlocked\n");
+
+ /* Toggle shutdown OFF then ON */
+ snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
+ M98090_SHDNN_MASK, 0);
+ msleep(10);
+ snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
+ M98090_SHDNN_MASK, M98090_SHDNN_MASK);
+
+ /* Give PLL time to lock */
+ msleep(10);
+}
+
static void max98090_jack_work(struct work_struct *work)
{
struct max98090_priv *max98090 = container_of(work,
@@ -2063,12 +2159,16 @@ static void max98090_jack_work(struct work_struct *work)
static irqreturn_t max98090_interrupt(int irq, void *data)
{
- struct snd_soc_codec *codec = data;
- struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
+ struct max98090_priv *max98090 = data;
+ struct snd_soc_codec *codec = max98090->codec;
int ret;
unsigned int mask;
unsigned int active;
+ /* Treat interrupt before codec is initialized as spurious */
+ if (codec == NULL)
+ return IRQ_NONE;
+
dev_dbg(codec->dev, "***** max98090_interrupt *****\n");
ret = regmap_read(max98090->regmap, M98090_REG_INTERRUPT_S, &mask);
@@ -2103,8 +2203,10 @@ static irqreturn_t max98090_interrupt(int irq, void *data)
if (active & M98090_SLD_MASK)
dev_dbg(codec->dev, "M98090_SLD_MASK\n");
- if (active & M98090_ULK_MASK)
- dev_err(codec->dev, "M98090_ULK_MASK\n");
+ if (active & M98090_ULK_MASK) {
+ dev_dbg(codec->dev, "M98090_ULK_MASK\n");
+ schedule_work(&max98090->pll_work);
+ }
if (active & M98090_JDET_MASK) {
dev_dbg(codec->dev, "M98090_JDET_MASK\n");
@@ -2177,6 +2279,7 @@ static struct snd_soc_dai_ops max98090_dai_ops = {
.set_tdm_slot = max98090_set_tdm_slot,
.hw_params = max98090_dai_hw_params,
.digital_mute = max98090_dai_digital_mute,
+ .trigger = max98090_dai_trigger,
};
static struct snd_soc_dai_driver max98090_dai[] = {
@@ -2230,7 +2333,6 @@ static int max98090_probe(struct snd_soc_codec *codec)
max98090->lin_state = 0;
max98090->pa1en = 0;
max98090->pa2en = 0;
- max98090->extmic_mux = 0;
ret = snd_soc_read(codec, M98090_REG_REVISION_ID);
if (ret < 0) {
@@ -2258,22 +2360,16 @@ static int max98090_probe(struct snd_soc_codec *codec)
max98090->jack_state = M98090_JACK_STATE_NO_HEADSET;
INIT_DELAYED_WORK(&max98090->jack_work, max98090_jack_work);
+ INIT_DELAYED_WORK(&max98090->pll_det_enable_work,
+ max98090_pll_det_enable_work);
+ INIT_WORK(&max98090->pll_det_disable_work,
+ max98090_pll_det_disable_work);
+ INIT_WORK(&max98090->pll_work, max98090_pll_work);
/* Enable jack detection */
snd_soc_write(codec, M98090_REG_JACK_DETECT,
M98090_JDETEN_MASK | M98090_JDEB_25MS);
- /* Register for interrupts */
- dev_dbg(codec->dev, "irq = %d\n", max98090->irq);
-
- ret = devm_request_threaded_irq(codec->dev, max98090->irq, NULL,
- max98090_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- "max98090_interrupt", codec);
- if (ret < 0) {
- dev_err(codec->dev, "request_irq failed: %d\n",
- ret);
- }
-
/*
* Clear any old interrupts.
* An old interrupt ocurring prior to installing the ISR
@@ -2310,6 +2406,10 @@ static int max98090_remove(struct snd_soc_codec *codec)
struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
cancel_delayed_work_sync(&max98090->jack_work);
+ cancel_delayed_work_sync(&max98090->pll_det_enable_work);
+ cancel_work_sync(&max98090->pll_det_disable_work);
+ cancel_work_sync(&max98090->pll_work);
+ max98090->codec = NULL;
return 0;
}
@@ -2362,7 +2462,6 @@ static int max98090_i2c_probe(struct i2c_client *i2c,
max98090->devtype = driver_data;
i2c_set_clientdata(i2c, max98090);
max98090->pdata = i2c->dev.platform_data;
- max98090->irq = i2c->irq;
max98090->regmap = devm_regmap_init_i2c(i2c, &max98090_regmap);
if (IS_ERR(max98090->regmap)) {
@@ -2371,6 +2470,15 @@ static int max98090_i2c_probe(struct i2c_client *i2c,
goto err_enable;
}
+ ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
+ max98090_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "max98090_interrupt", max98090);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "request_irq failed: %d\n",
+ ret);
+ return ret;
+ }
+
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_max98090, max98090_dai,
ARRAY_SIZE(max98090_dai));