add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/rtc/rtc-da9052.c
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@@ -1,15 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Real time clock driver for DA9052
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  *
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  * Copyright(c) 2012 Dialog Semiconductor Ltd.
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  *
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  * Author: Dajun Dajun Chen <dajun.chen@diasemi.com>
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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 as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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  */
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 #include <linux/module.h>
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@@ -108,13 +103,11 @@
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 	int ret;
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 	uint8_t v[3];
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-	ret = rtc_tm_to_time(rtc_tm, &alm_time);
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-	if (ret != 0)
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-		return ret;
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+	alm_time = rtc_tm_to_time64(rtc_tm);
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 	if (rtc_tm->tm_sec > 0) {
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 		alm_time += 60 - rtc_tm->tm_sec;
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-		rtc_time_to_tm(alm_time, rtc_tm);
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+		rtc_time64_to_tm(alm_time, rtc_tm);
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 	}
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 	BUG_ON(rtc_tm->tm_sec); /* it will cause repeated irqs if not zero */
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@@ -303,12 +296,18 @@
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 		rtc_err(rtc, "Failed to disable TICKS: %d\n", ret);
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 	device_init_wakeup(&pdev->dev, true);
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-	rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
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-				       &da9052_rtc_ops, THIS_MODULE);
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-
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+	rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
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 	if (IS_ERR(rtc->rtc))
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 		return PTR_ERR(rtc->rtc);
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+	rtc->rtc->ops = &da9052_rtc_ops;
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+	rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
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+	rtc->rtc->range_max = RTC_TIMESTAMP_END_2063;
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+
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+	ret = rtc_register_device(rtc->rtc);
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+	if (ret)
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+		return ret;
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+
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 	ret = da9052_request_irq(rtc->da9052, DA9052_IRQ_ALARM, "ALM",
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 				da9052_rtc_irq, rtc);
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 	if (ret != 0) {