linux-kernel - [PATCH net-next v3 6/8] net: dsa: microchip: Enable Ethernet PTP detection

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Message-Id: <20260126-ksz8463-ptp-v3-6-9f092aeb8492@bootlin.com>
Date: Mon, 26 Jan 2026 09:27:34 +0100
From: "Bastien Curutchet (Schneider Electric)" <bastien.curutchet@...tlin.com>
To: Woojung Huh <woojung.huh@...rochip.com>, UNGLinuxDriver@...rochip.com, 
 Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Richard Cochran <richardcochran@...il.com>, Simon Horman <horms@...nel.org>
Cc: Pascal Eberhard <pascal.eberhard@...com>, 
 Miquèl Raynal <miquel.raynal@...tlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 "Bastien Curutchet (Schneider Electric)" <bastien.curutchet@...tlin.com>
Subject: [PATCH net-next v3 6/8] net: dsa: microchip: Enable Ethernet PTP
 detection

KSZ8463 needs to enable the Ethernet PTP detection to fire the
interrupts when a timestamp is captured.

Enable Ethernet PTP detection.

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@...tlin.com>
---
 drivers/net/dsa/microchip/ksz_ptp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz_ptp.c b/drivers/net/dsa/microchip/ksz_ptp.c
index 1ab41cc96af9ea3b4c092d7a90a6c41fce705a32..f773989e4d2f72fe7b474ff896509ffd425a87a0 100644
--- a/drivers/net/dsa/microchip/ksz_ptp.c
+++ b/drivers/net/dsa/microchip/ksz_ptp.c
@@ -947,8 +947,8 @@ int ksz_ptp_clock_register(struct dsa_switch *ds)
 	/* Currently only P2P mode is supported. When 802_1AS bit is set, it
 	 * forwards all PTP packets to host port and none to other ports.
 	 */
-	ret = ksz_rmw16(dev, regs[PTP_MSG_CONF1], PTP_TC_P2P | PTP_802_1AS,
-			PTP_TC_P2P | PTP_802_1AS);
+	ret = ksz_rmw16(dev, regs[PTP_MSG_CONF1], PTP_TC_P2P | PTP_802_1AS | PTP_ETH_ENABLE,
+			PTP_TC_P2P | PTP_802_1AS | PTP_ETH_ENABLE);
 	if (ret)
 		return ret;

-- 
2.52.0