[PATCH net 3/3] ptp: qoriq: fix support for PTP_EXTTS_REQUEST2 ioctl
flat view
COOLING14d
From: Vincent Jardin via B4 Relay <devnull+vjardin.free.fr@kernel.org>
Date: 2026-10-06 13:35:04
Also in:
b4-sent, imx, lkml
Subsystem:
freescale qoriq ptp clock driver, networking drivers, ptp hardware clock support, the rest · Maintainers:
Yangbo Lu, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Richard Cochran, Linus Torvalds
From: Vincent Jardin <vjardin@free.fr>
Commit 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to
ptp_clock_info") moved the validation of the external timestamp request
flags into the PTP core. A driver that does not set
.supported_extts_flags still accepts the legacy PTP_EXTTS_REQUEST ioctl,
but every PTP_EXTTS_REQUEST2 request is rejected with -EOPNOTSUPP, since
the core always adds PTP_STRICT_FLAGS to it
ptp_qoriq_init() programs TMR_CTRL with ETEP1 and ETEP2 cleared, so the
timer timestamps the rising edge of its external trigger inputs. Declare
that, with PTP_STRICT_FLAGS, so that a falling edge request is rejected
instead of being timestamped on the rising edge.
Fixes: 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to ptp_clock_info")
Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
drivers/ptp/ptp_qoriq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c
index 76272e5ac5b8..bcd29104effe 100644
--- a/drivers/ptp/ptp_qoriq.c
+++ b/drivers/ptp/ptp_qoriq.c@@ -355,6 +355,7 @@ static const struct ptp_clock_info ptp_qoriq_caps = { .n_per_out = 0, .n_pins = 0, .pps = 1, + .supported_extts_flags = PTP_RISING_EDGE | PTP_STRICT_FLAGS, .adjfine = ptp_qoriq_adjfine, .adjtime = ptp_qoriq_adjtime, .gettime64 = ptp_qoriq_gettime,
--
2.43.0