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    Subject[PATCH 5.9 516/757] rtc: ds1307: Clear OSF flag on DS1388 when setting time
    Date
    From: Chris Packham <chris.packham@alliedtelesis.co.nz>

    [ Upstream commit f471b05f76e4b1b6ba07ebc7681920a5c5b97c5d ]

    Ensure the OSF flag is cleared on the DS1388 when the clock is set.

    Fixes: df11b323b16f ("rtc: ds1307: handle oscillator failure flags for ds1388 variant")
    Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
    Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
    Link: https://lore.kernel.org/r/20200818013543.4283-1-chris.packham@alliedtelesis.co.nz
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/rtc/rtc-ds1307.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
    index 54c85cdd019dd..c9c3de14bc62f 100644
    --- a/drivers/rtc/rtc-ds1307.c
    +++ b/drivers/rtc/rtc-ds1307.c
    @@ -352,6 +352,10 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
    regmap_update_bits(ds1307->regmap, DS1340_REG_FLAG,
    DS1340_BIT_OSF, 0);
    break;
    + case ds_1388:
    + regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG,
    + DS1388_BIT_OSF, 0);
    + break;
    case mcp794xx:
    /*
    * these bits were cleared when preparing the date/time
    --
    2.25.1


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