The PORF bit is cleared on interrupts which prevents the driver to know when the time and date are invalid. Stop clearing PORF in the interrupt handler. Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- drivers/rtc/rtc-rv3028.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index 2004f8c5397f..4f8f6092097a 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -268,6 +268,8 @@ static irqreturn_t rv3028_handle_irq(int irq, void *dev_id) if (status & RV3028_STATUS_PORF) dev_warn(&rv3028->rtc->dev, "Voltage low, data loss detected.\n"); + status &= ~RV3028_STATUS_PORF; + if (status & RV3028_STATUS_TF) { status |= RV3028_STATUS_TF; ctrl |= RV3028_CTRL2_TIE; -- 2.29.2