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authorAlexandre Mergnat <amergnat@baylibre.com>2025-04-28 12:06:47 +0200
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2025-06-02 00:10:17 +0200
commit7df4cfef8b351fec3156160bedfc7d6d29de4cce (patch)
tree0eb1d01b3ec9dbad8879e690adc99bbfb22d66c8 /scripts/generate_rust_analyzer.py
parent1e15a6803df01471e0065dabd8b9563692c47219 (diff)
rtc: Make rtc_time64_to_tm() support dates before 1970
Conversion of dates before 1970 is still relevant today because these dates are reused on some hardwares to store dates bigger than the maximal date that is representable in the device's native format. This prominently and very soon affects the hardware covered by the rtc-mt6397 driver that can only natively store dates in the interval 1900-01-01 up to 2027-12-31. So to store the date 2028-01-01 00:00:00 to such a device, rtc_time64_to_tm() must do the right thing for time=-2208988800. Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-1-2b2f7e3f9349@baylibre.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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