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| author | Vincent Cheng <vincent.cheng.xh@renesas.com> | 2020-05-01 23:35:37 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-02 16:31:45 -0700 |
| commit | d3f1cbd29fa63f1bb608603a6cd54ca7af56a68b (patch) | |
| tree | c8fa140f0d9e04e6f045ff5831a8a060295c981d | |
| parent | 184ecc9eb260d5a3bcdddc5bebd18f285ac004e9 (diff) | |
| download | linux-stable-d3f1cbd29fa63f1bb608603a6cd54ca7af56a68b.tar.gz linux-stable-d3f1cbd29fa63f1bb608603a6cd54ca7af56a68b.tar.bz2 linux-stable-d3f1cbd29fa63f1bb608603a6cd54ca7af56a68b.zip | |
ptp: Add adjust_phase to ptp_clock_caps capability.
Add adjust_phase to ptp_clock_caps capability to allow
user to query if a PHC driver supports adjust phase with
ioctl PTP_CLOCK_GETCAPS command.
Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/ptp/ptp_chardev.c | 1 | ||||
| -rw-r--r-- | include/uapi/linux/ptp_clock.h | 4 | ||||
| -rw-r--r-- | tools/testing/selftests/ptp/testptp.c | 6 |
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index 93d574faf1fe..375cd6e4aade 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -136,6 +136,7 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) caps.pps = ptp->info->pps; caps.n_pins = ptp->info->n_pins; caps.cross_timestamping = ptp->info->getcrosststamp != NULL; + caps.adjust_phase = ptp->info->adjphase != NULL; if (copy_to_user((void __user *)arg, &caps, sizeof(caps))) err = -EFAULT; break; diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h index 9dc9d0079e98..ff070aa64278 100644 --- a/include/uapi/linux/ptp_clock.h +++ b/include/uapi/linux/ptp_clock.h @@ -89,7 +89,9 @@ struct ptp_clock_caps { int n_pins; /* Number of input/output pins. */ /* Whether the clock supports precise system-device cross timestamps */ int cross_timestamping; - int rsv[13]; /* Reserved for future use. */ + /* Whether the clock supports adjust phase */ + int adjust_phase; + int rsv[12]; /* Reserved for future use. */ }; struct ptp_extts_request { diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c index c0dd10257df5..da7a9dda9490 100644 --- a/tools/testing/selftests/ptp/testptp.c +++ b/tools/testing/selftests/ptp/testptp.c @@ -269,14 +269,16 @@ int main(int argc, char *argv[]) " %d programmable periodic signals\n" " %d pulse per second\n" " %d programmable pins\n" - " %d cross timestamping\n", + " %d cross timestamping\n" + " %d adjust_phase\n", caps.max_adj, caps.n_alarm, caps.n_ext_ts, caps.n_per_out, caps.pps, caps.n_pins, - caps.cross_timestamping); + caps.cross_timestamping, + caps.adjust_phase); } } |