[PATCH net 2/3] net: enetc: fix support for PTP_EXTTS_REQUEST2 ioctl
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COOLING14d
From: Vincent Jardin via B4 Relay <devnull+vjardin.free.fr@kernel.org>
Date: 2026-10-06 13:35:04
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Subsystem:
freescale enetc ethernet drivers, freescale qoriq ptp clock driver, networking drivers, the rest · Maintainers:
Claudiu Manoil, Vladimir Oltean, Wei Fang, Clark Wang, Yangbo Lu, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, 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
The ENETC timer is the QorIQ 1588 timer, set up by ptp_qoriq_init(), which
programs TMR_CTRL with ETEP1 and ETEP2 cleared, so it 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/net/ethernet/freescale/enetc/enetc_ptp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
index 162cbc801730..5ffee882d624 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c@@ -16,6 +16,7 @@ static struct ptp_clock_info enetc_ptp_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