pps: unify timestamp gathering

Add a helper function to gather timestamps.  This way clients don't have
to duplicate it.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 19 insertions, 1 deletions

diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h
index 65194fe498bb..32aa6763ca1b 100644
--- a/include/linux/pps_kernel.h
+++ b/include/linux/pps_kernel.h
@@ -43,6 +43,10 @@ struct pps_source_info {
         struct device *dev;
 };
 
+struct pps_event_time {
+        struct timespec ts_real;
+};
+
 /* The main struct */
 struct pps_device {
         struct pps_source_info info;            /* PSS source info */
@@ -88,6 +92,20 @@ extern int pps_register_source(struct pps_source_info *info,
 extern void pps_unregister_source(int source);
 extern int pps_register_cdev(struct pps_device *pps);
 extern void pps_unregister_cdev(struct pps_device *pps);
-extern void pps_event(int source, struct pps_ktime *ts, int event, void *data);
+extern void pps_event(int source, struct pps_event_time *ts, int event,
+                void *data);
+
+static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
+                struct timespec ts)
+{
+        kt->sec = ts.tv_sec;
+        kt->nsec = ts.tv_nsec;
+}
+
+static inline void pps_get_ts(struct pps_event_time *ts)
+{
+        getnstimeofday(&ts->ts_real);
+}
 
 #endif /* LINUX_PPS_KERNEL_H */
+