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    Subject[PATCH 4.19 440/639] rtc: pcf8563: Fix interrupt trigger method
    Date
    From: Chen-Yu Tsai <wens@csie.org>

    [ Upstream commit 65f662cbf829834fa4d94190eb7691e5a9cb92d8 ]

    The PCF8563 datasheet says the interrupt line is active low and stays
    active until the events are cleared, i.e. a level trigger interrupt.

    Fix the flags used to request the interrupt.

    Fixes: ede3e9d47cca ("drivers/rtc/rtc-pcf8563.c: add alarm support")
    Signed-off-by: Chen-Yu Tsai <wens@csie.org>
    Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/rtc/rtc-pcf8563.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
    index 3efc86c25d27a..e358313466f19 100644
    --- a/drivers/rtc/rtc-pcf8563.c
    +++ b/drivers/rtc/rtc-pcf8563.c
    @@ -605,7 +605,7 @@ static int pcf8563_probe(struct i2c_client *client,
    if (client->irq > 0) {
    err = devm_request_threaded_irq(&client->dev, client->irq,
    NULL, pcf8563_irq,
    - IRQF_SHARED|IRQF_ONESHOT|IRQF_TRIGGER_FALLING,
    + IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW,
    pcf8563_driver.driver.name, client);
    if (err) {
    dev_err(&client->dev, "unable to request IRQ %d\n",
    --
    2.20.1


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