Commit d3f1cbd2 authored by Vincent Cheng's avatar Vincent Cheng Committed by David S. Miller
Browse files

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: default avatarVincent Cheng <vincent.cheng.xh@renesas.com>
Reviewed-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 184ecc9e

drivers/ptp/ptp_chardev.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/linux/ptp_clock.h

+3 −1
Original line number Diff line number Diff line
@@ -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 {

tools/testing/selftests/ptp/testptp.c

+4 −2
Original line number Diff line number Diff line
@@ -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);

		}

	}

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