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Commit 0dbd610c authored by Biju Das's avatar Biju Das Committed by Alexandre Belloni
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rtc: isl1208: Add a delay for clearing alarm

As per the latest HW manual[1], the INT# output is pulled low after the
alarm is triggered. After the INT# output is pulled low, it is low for at
least 250ms, even if the correct action is taken to clear it. It is
impossible to clear ALM if it is still active. The host must wait for the
RTC to progress past the alarm time plus the 250ms delay before clearing
ALM.

[1]https://www.renesas.com/us/en/document/dst/raa215300-datasheet?r=1506351



Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20240618152635.48956-2-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 840ac611
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