add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/rtc/rtc-ps3.c
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@@ -1,20 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * PS3 RTC Driver
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  *
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  * Copyright 2009 Sony Corporation
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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; version 2 of the License.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.
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- * If not, see <http://www.gnu.org/licenses/>.
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  */
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 #include <linux/kernel.h>
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@@ -40,16 +28,13 @@
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 static int ps3_get_time(struct device *dev, struct rtc_time *tm)
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 {
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-	rtc_time_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
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+	rtc_time64_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
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 	return 0;
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 }
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 static int ps3_set_time(struct device *dev, struct rtc_time *tm)
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 {
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-	unsigned long now;
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-
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-	rtc_tm_to_time(tm, &now);
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-	ps3_os_area_set_rtc_diff(now - read_rtc());
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+	ps3_os_area_set_rtc_diff(rtc_tm_to_time64(tm) - read_rtc());
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 	return 0;
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 }
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@@ -62,13 +47,16 @@
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 {
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 	struct rtc_device *rtc;
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-	rtc = devm_rtc_device_register(&dev->dev, "rtc-ps3", &ps3_rtc_ops,
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-				  THIS_MODULE);
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+	rtc = devm_rtc_allocate_device(&dev->dev);
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 	if (IS_ERR(rtc))
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 		return PTR_ERR(rtc);
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+	rtc->ops = &ps3_rtc_ops;
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+	rtc->range_max = U64_MAX;
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+
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 	platform_set_drvdata(dev, rtc);
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-	return 0;
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+
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+	return rtc_register_device(rtc);
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 }
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 static struct platform_driver ps3_rtc_driver = {