add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/sh/kernel/time.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  *  arch/sh/kernel/time.c
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  *
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@@ -5,10 +6,6 @@
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  *  Copyright (C) 2000  Philipp Rumpf <prumpf@tux.org>
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  *  Copyright (C) 2002 - 2009  Paul Mundt
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  *  Copyright (C) 2002  M. R. Brown  <mrbrown@linux-sh.org>
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- *
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- * This file is subject to the terms and conditions of the GNU General Public
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- * License.  See the file "COPYING" in the main directory of this archive
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- * for more details.
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  */
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 #include <linux/kernel.h>
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 #include <linux/init.h>
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@@ -21,77 +18,7 @@
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 #include <linux/rtc.h>
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 #include <asm/clock.h>
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 #include <asm/rtc.h>
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-
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-/* Dummy RTC ops */
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-static void null_rtc_get_time(struct timespec *tv)
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-{
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-	tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
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-	tv->tv_nsec = 0;
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-}
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-
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-static int null_rtc_set_time(const time_t secs)
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-{
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-	return 0;
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-}
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-
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-void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
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-int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
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-
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-void read_persistent_clock(struct timespec *ts)
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-{
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-	rtc_sh_get_time(ts);
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-}
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-
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-#ifdef CONFIG_GENERIC_CMOS_UPDATE
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-int update_persistent_clock(struct timespec now)
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-{
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-	return rtc_sh_set_time(now.tv_sec);
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-}
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-#endif
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-
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-static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
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-{
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-	struct timespec tv;
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-
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-	rtc_sh_get_time(&tv);
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-	rtc_time_to_tm(tv.tv_sec, tm);
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-	return 0;
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-}
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-
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-static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
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-{
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-	unsigned long secs;
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-
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-	rtc_tm_to_time(tm, &secs);
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-	if ((rtc_sh_set_time == null_rtc_set_time) ||
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-	    (rtc_sh_set_time(secs) < 0))
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-		return -EOPNOTSUPP;
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-
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-	return 0;
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-}
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-
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-static const struct rtc_class_ops rtc_generic_ops = {
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-	.read_time = rtc_generic_get_time,
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-	.set_time = rtc_generic_set_time,
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-};
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-
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-static int __init rtc_generic_init(void)
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-{
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-	struct platform_device *pdev;
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-
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-	if (rtc_sh_get_time == null_rtc_get_time)
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-		return -ENODEV;
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-
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-	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
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-					     &rtc_generic_ops,
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-					     sizeof(rtc_generic_ops));
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-
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-
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-	return PTR_ERR_OR_ZERO(pdev);
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-}
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-device_initcall(rtc_generic_init);
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-
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-void (*board_time_init)(void);
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+#include <asm/platform_early.h>
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 static void __init sh_late_time_init(void)
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 {
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@@ -104,14 +31,13 @@
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 	 * clocksource and the jiffies clocksource is used transparently
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 	 * instead. No error handling is necessary here.
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 	 */
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-	early_platform_driver_register_all("earlytimer");
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-	early_platform_driver_probe("earlytimer", 2, 0);
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+	sh_early_platform_driver_register_all("earlytimer");
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+	sh_early_platform_driver_probe("earlytimer", 2, 0);
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 }
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 void __init time_init(void)
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 {
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-	if (board_time_init)
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-		board_time_init();
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+	timer_probe();
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 	clk_init();
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