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Diffstat (limited to 'sound/soc/codecs/tlv320aic31xx.c')
-rw-r--r--sound/soc/codecs/tlv320aic31xx.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index bf92d36b8f8a..608ad49ad978 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -167,6 +167,7 @@ struct aic31xx_priv {
u8 p_div;
int rate_div_line;
bool master_dapm_route_applied;
+ int irq;
};
struct aic31xx_rate_divs {
@@ -1391,6 +1392,69 @@ static const struct acpi_device_id aic31xx_acpi_match[] = {
MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
#endif
+static irqreturn_t aic31xx_irq(int irq, void *data)
+{
+ struct aic31xx_priv *aic31xx = data;
+ struct device *dev = aic31xx->dev;
+ unsigned int value;
+ bool handled = false;
+ int ret;
+
+ ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
+ if (ret) {
+ dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
+ goto exit;
+ }
+
+ if (value)
+ handled = true;
+ else
+ goto read_overflow;
+
+ if (value & AIC31XX_HPLSCDETECT)
+ dev_err(dev, "Short circuit on Left output is detected\n");
+ if (value & AIC31XX_HPRSCDETECT)
+ dev_err(dev, "Short circuit on Right output is detected\n");
+ if (value & ~(AIC31XX_HPLSCDETECT |
+ AIC31XX_HPRSCDETECT))
+ dev_err(dev, "Unknown DAC interrupt flags: 0x%08x\n", value);
+
+read_overflow:
+ ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value);
+ if (ret) {
+ dev_err(dev, "Failed to read overflow flag: %d\n", ret);
+ goto exit;
+ }
+
+ if (value)
+ handled = true;
+ else
+ goto exit;
+
+ if (value & AIC31XX_DAC_OF_LEFT)
+ dev_warn(dev, "Left-channel DAC overflow has occurred\n");
+ if (value & AIC31XX_DAC_OF_RIGHT)
+ dev_warn(dev, "Right-channel DAC overflow has occurred\n");
+ if (value & AIC31XX_DAC_OF_SHIFTER)
+ dev_warn(dev, "DAC barrel shifter overflow has occurred\n");
+ if (value & AIC31XX_ADC_OF)
+ dev_warn(dev, "ADC overflow has occurred\n");
+ if (value & AIC31XX_ADC_OF_SHIFTER)
+ dev_warn(dev, "ADC barrel shifter overflow has occurred\n");
+ if (value & ~(AIC31XX_DAC_OF_LEFT |
+ AIC31XX_DAC_OF_RIGHT |
+ AIC31XX_DAC_OF_SHIFTER |
+ AIC31XX_ADC_OF |
+ AIC31XX_ADC_OF_SHIFTER))
+ dev_warn(dev, "Unknown overflow interrupt flags: 0x%08x\n", value);
+
+exit:
+ if (handled)
+ return IRQ_HANDLED;
+ else
+ return IRQ_NONE;
+}
+
static int aic31xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -1413,6 +1477,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
return ret;
}
aic31xx->dev = &i2c->dev;
+ aic31xx->irq = i2c->irq;
aic31xx->codec_type = id->driver_data;
@@ -1456,6 +1521,26 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
return ret;
}
+ if (aic31xx->irq > 0) {
+ regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
+ AIC31XX_GPIO1_FUNC_MASK,
+ AIC31XX_GPIO1_INT1 <<
+ AIC31XX_GPIO1_FUNC_SHIFT);
+
+ regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
+ AIC31XX_SC |
+ AIC31XX_ENGINE);
+
+ ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq,
+ NULL, aic31xx_irq,
+ IRQF_ONESHOT, "aic31xx-irq",
+ aic31xx);
+ if (ret) {
+ dev_err(aic31xx->dev, "Unable to request IRQ\n");
+ return ret;
+ }
+ }
+
if (aic31xx->codec_type & DAC31XX_BIT)
return devm_snd_soc_register_component(&i2c->dev,
&soc_codec_driver_aic31xx,