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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2021-01-26 23:14:33 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2021-02-06 00:56:30 +0100 |
| commit | f007c479c2d0ca0a537286511aa5d07b75755513 (patch) | |
| tree | de264127a8cdd8099ebd7f5c5d99a8043785d1c8 /drivers/rtc | |
| parent | rtc: mxc_v2: Replace spin_lock_irqsave with spin_lock in hard IRQ (diff) | |
| download | linux-f007c479c2d0ca0a537286511aa5d07b75755513.tar.xz linux-f007c479c2d0ca0a537286511aa5d07b75755513.zip | |
rtc: rv3028: fix PORF handling
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
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-rv3028.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |