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rtc: rv3028: fix PORF handling

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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@bootlin.com>
Link: https://lore.kernel.org/r/20210126221435.2152339-1-alexandre.belloni@bootlin.com
This commit is contained in:
Alexandre Belloni 2021-01-26 23:14:33 +01:00
parent 0c1095d334
commit f007c479c2
1 changed files with 2 additions and 0 deletions
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2
drivers/rtc/rtc-rv3028.c
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@ -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;