We need to make sure that the clocksources are resumed, when timekeeping is resumed. The current resume logic does not guarantee this. Add a resume function pointer to the clocksource struct, so clocksource drivers which need to reinitialize the clocksource can provide a resume function. Add a resume function, which calls the maybe available clocksource resume functions and resets the watchdog function, so a stable TSC can be used accross suspend/resume.
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| @@ -1499,6 +1499,8 @@ unregister_time_interpolator(struct time_interpolator *ti) · 1498 unmodified lines | ||
| 1499 | 1499 | prev = &curr->next; |
| 1500 | 1500 | } |
| 1501 | 1501 | |
| 1502 | + clocksource_resume(); | |
| 1503 | + | |
| 1502 | 1504 | write_seqlock_irqsave(&xtime_lock, flags); |
| 1503 | 1505 | if (ti == time_interpolator) { |
| 1504 | 1506 | /* we lost the best time-interpolator: */ |