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| author | Richard Cochran <richardcochran@gmail.com> | 2012-04-04 02:59:16 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-04 13:28:45 +0400 |
| commit | 995a9090b2b7dc734351f3ac0ba8d913ffb87001 (patch) | |
| tree | ff47973003ce5c420ca556739885c85d9daa68ee | |
| parent | 2173bff5dcff4ca02226978f39648b66a8c3ca1e (diff) | |
| download | linux-995a9090b2b7dc734351f3ac0ba8d913ffb87001.tar.xz | |
ptp: Add a method for obtaining the device index.
This commit adds a method that MAC drivers may call in order to find out
the device number of their associated PTP Hardware Clock.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/ptp/ptp_clock.c | 6 | ||||
| -rw-r--r-- | include/linux/ptp_clock_kernel.h | 8 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index f519a131238d..1e528b539a07 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -304,6 +304,12 @@ void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event) } EXPORT_SYMBOL(ptp_clock_event); +int ptp_clock_index(struct ptp_clock *ptp) +{ + return ptp->index; +} +EXPORT_SYMBOL(ptp_clock_index); + /* module operations */ static void __exit ptp_exit(void) diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index dd2e44fba63e..945704c2ed65 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -136,4 +136,12 @@ struct ptp_clock_event { extern void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event); +/** + * ptp_clock_index() - obtain the device index of a PTP clock + * + * @ptp: The clock obtained from ptp_clock_register(). + */ + +extern int ptp_clock_index(struct ptp_clock *ptp); + #endif |