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Because BIT(1) in the ISR register corresponds only to VCNL_INT_TH_LOW, any high-threshold interrupt (VCNL_INT_TH_HI, BIT(0)) occurring on its own resulted in the handler returning IRQ_NONE and ignoring the event. Fix this by checking the ISR value against both valid status bits: VCNL_INT_TH_HI and VCNL_INT_TH_LOW. Fixes: 3363fbbe19e5 ("iio: proximity: vcnl3020: add periodic mode") Signed-off-by: Salah Triki --- drivers/iio/proximity/vcnl3020.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/proximity/vcnl3020.c b/drivers/iio/proximity/vcnl3020.c index 7f417372566a..d4ad06f8f366 100644 --- a/drivers/iio/proximity/vcnl3020.c +++ b/drivers/iio/proximity/vcnl3020.c @@ -584,7 +584,7 @@ static irqreturn_t vcnl3020_handle_irq_thread(int irq, void *p) return IRQ_HANDLED; } - if (!(isr & VCNL_ICR_THRES_EN)) + if (!(isr & (VCNL_INT_TH_HI | VCNL_INT_TH_LOW))) return IRQ_NONE; iio_push_event(indio_dev, -- 2.43.0