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rtc: s3c: Disable all enable (RTC, tick) bits in the probe
Bootloader might use RTC hardware and leave it in the enabled state. Ensure that the potentially enabled periodic tick interrupts are disabled before enabling the driver, because they might cause lockup if tick interrupt happens after disabling RTC gate clock. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201202111318.5353-1-m.szyprowski@samsung.com
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