/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * */ #include <linux/rtc.h> #include <linux/time.h> /** * rtc_set_ntp_time - Save NTP synchronized time to the RTC * @now: Current time of day * * Replacement for the NTP platform function update_persistent_clock64 * that stores time for later retrieval by rtc_hctosys. * * Returns 0 on successful RTC update, -ENODEV if a RTC update is not * possible at all, and various other -errno for specific temporary failure * cases. * * If temporary failure is indicated the caller should try again 'soon' */
int rtc_set_ntp_time(struct timespec64 now) { struct rtc_device *rtc; struct rtc_time tm; int err = -ENODEV; if (now.tv_nsec < (NSEC_PER_SEC >> 1)) rtc_time64_to_tm(now.tv_sec, &tm); else rtc_time64_to_tm(now.tv_sec + 1, &tm); rtc = rtc_class_open(CONFIG_RTC_SYSTOHC_DEVICE); if (rtc) { /* rtc_hctosys exclusively uses UTC, so we call set_time here, * not set_mmss. */ if (rtc->ops && (rtc->ops->set_time || rtc->ops->set_mmss64 || rtc->ops->set_mmss)) err = rtc_set_time(rtc, &tm); rtc_class_close(rtc); } return err; }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jason Gunthorpe | 107 | 91.45% | 1 | 25.00% |
| Xunlei Pang | 10 | 8.55% | 3 | 75.00% |
| Total | 117 | 100.00% | 4 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Jason Gunthorpe | 114 | 91.20% | 1 | 20.00% |
| Xunlei Pang | 11 | 8.80% | 4 | 80.00% |
| Total | 125 | 100.00% | 5 | 100.00% |