m68k/kernel/time.c

1 // SPDX-License-Identifier: GPL-2.0-only
7  * This file contains the m68k-specific time handling details.
10  * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
11  *		"A Kernel Model for Precision Timekeeping" by Dave Mills
41 	/* use power LED as a heartbeat instead -- much more useful  in timer_heartbeat()
42 	   for debugging -- based on the version for PReP by Cort */  in timer_heartbeat()
43 	/* acts like an actual heart beat -- ie thump-thump-pause... */  in timer_heartbeat()
57 		 * f(inf)->30. */  in timer_heartbeat()
66 /* machine dependent timer functions */
80 	ts->tv_sec = 0;  in read_persistent_clock64()
81 	ts->tv_nsec = 0;  in read_persistent_clock64()
88 	ts->tv_sec = mktime64(time.tm_year + 1900, time.tm_mon + 1, time.tm_mday,  in read_persistent_clock64()
103 		return -EOPNOTSUPP;  in rtc_generic_set_time()
115 			return -EINVAL;  in rtc_ioctl()
116 		return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;  in rtc_ioctl()
120 			return -EINVAL;  in rtc_ioctl()
122 			return -EACCES;  in rtc_ioctl()
124 			return -EFAULT;  in rtc_ioctl()
128 	return -ENOIOCTLCMD;  in rtc_ioctl()
142 		return -ENODEV;  in rtc_init()
144 	pdev = platform_device_register_data(NULL, "rtc-generic", -1,  in rtc_init()