netdev - [PATCH net-next v2 8/9] net: phy: nxp-c45-tja11xx: add HW timestamp configuration reporting

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Message-ID: <20251113113207.3928966-9-vadim.fedorenko@linux.dev>
Date: Thu, 13 Nov 2025 11:32:06 +0000
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Russell King <linux@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrei Botila <andrei.botila@....nxp.com>,
	Richard Cochran <richardcochran@...il.com>,
	Andrew Lunn <andrew@...n.ch>
Cc: Simon Horman <horms@...nel.org>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Kory Maincent <kory.maincent@...tlin.com>,
	bcm-kernel-feedback-list@...adcom.com,
	netdev@...r.kernel.org,
	Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Subject: [PATCH net-next v2 8/9] net: phy: nxp-c45-tja11xx: add HW timestamp configuration reporting

The driver stores HW timestamping configuration and can technically
report it. Add callback to do it.

Signed-off-by: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
---
 drivers/net/phy/nxp-c45-tja11xx.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index 13a8fac223a9..f526528d2e32 100644
--- a/drivers/net/phy/nxp-c45-tja11xx.c
+++ b/drivers/net/phy/nxp-c45-tja11xx.c
@@ -1012,6 +1012,19 @@ static bool nxp_c45_rxtstamp(struct mii_timestamper *mii_ts,
 	return true;
 }
 
+static int nxp_c45_hwtstamp_get(struct mii_timestamper *mii_ts,
+				struct kernel_hwtstamp_config *cfg)
+{
+	struct nxp_c45_phy *priv = container_of(mii_ts, struct nxp_c45_phy,
+						mii_ts);
+
+	cfg->tx_type = priv->hwts_tx;
+	cfg->rx_filter = priv->hwts_rx ? HWTSTAMP_FILTER_PTP_V2_L2_EVENT
+				       : HWTSTAMP_FILTER_NONE;
+
+	return 0;
+}
+
 static int nxp_c45_hwtstamp_set(struct mii_timestamper *mii_ts,
 				struct kernel_hwtstamp_config *cfg,
 				struct netlink_ext_ack *extack)
@@ -1750,6 +1763,7 @@ static int nxp_c45_probe(struct phy_device *phydev)
 		priv->mii_ts.rxtstamp = nxp_c45_rxtstamp;
 		priv->mii_ts.txtstamp = nxp_c45_txtstamp;
 		priv->mii_ts.hwtstamp_set = nxp_c45_hwtstamp_set;
+		priv->mii_ts.hwtstamp_get = nxp_c45_hwtstamp_get;
 		priv->mii_ts.ts_info = nxp_c45_ts_info;
 		phydev->mii_ts = &priv->mii_ts;
 		ret = nxp_c45_init_ptp_clock(priv);
-- 
2.47.3