add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/rtc/rtc-ds1390.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * rtc-ds1390.c -- driver for the Dallas/Maxim DS1390/93/94 SPI RTC
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  *
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  * Copyright (C) 2008 Mercury IMC Ltd
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  * Written by Mark Jackson <mpfj@mimc.co.uk>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  * NOTE: Currently this driver only supports the bare minimum for read
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  * and write the RTC. The extra features provided by the chip family