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.

Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251124181151.277256-7-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index 13a8fac223a94cc0f0e3dee3e2f7788f91c45c6d..f526528d2e3289d5d0d8d9a60ecba96095a3b149 100644 (file)
--- 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);