diff options
Diffstat (limited to 'drivers/iio/humidity/hts221_buffer.c')
| -rw-r--r-- | drivers/iio/humidity/hts221_buffer.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/iio/humidity/hts221_buffer.c b/drivers/iio/humidity/hts221_buffer.c index c4ed153ad397..ad5222295b2c 100644 --- a/drivers/iio/humidity/hts221_buffer.c +++ b/drivers/iio/humidity/hts221_buffer.c @@ -22,6 +22,8 @@ #include "hts221.h" +#define HTS221_REG_DRDY_HL_ADDR 0x22 +#define HTS221_REG_DRDY_HL_MASK BIT(7) #define HTS221_REG_STATUS_ADDR 0x27 #define HTS221_RH_DRDY_MASK BIT(1) #define HTS221_TEMP_DRDY_MASK BIT(0) @@ -67,6 +69,7 @@ static irqreturn_t hts221_trigger_handler_thread(int irq, void *private) int hts221_allocate_trigger(struct hts221_hw *hw) { struct iio_dev *iio_dev = iio_priv_to_dev(hw); + bool irq_active_low = false; unsigned long irq_type; int err; @@ -76,6 +79,10 @@ int hts221_allocate_trigger(struct hts221_hw *hw) case IRQF_TRIGGER_HIGH: case IRQF_TRIGGER_RISING: break; + case IRQF_TRIGGER_LOW: + case IRQF_TRIGGER_FALLING: + irq_active_low = true; + break; default: dev_info(hw->dev, "mode %lx unsupported, using IRQF_TRIGGER_RISING\n", @@ -84,6 +91,10 @@ int hts221_allocate_trigger(struct hts221_hw *hw) break; } + err = hts221_write_with_mask(hw, HTS221_REG_DRDY_HL_ADDR, + HTS221_REG_DRDY_HL_MASK, irq_active_low); + if (err < 0) + return err; err = devm_request_threaded_irq(hw->dev, hw->irq, NULL, hts221_trigger_handler_thread, irq_type | IRQF_ONESHOT, |