[PATCH net-next v4 3/7] net: phy: broadcom: add HW timestamp configuration reporting

[Vadim Fedorenko <vadim.fedorenko@linux.dev>]

The driver stores configuration information and can technically report
it. Implement hwtstamp_get callback to report the configuration.

Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
---
 drivers/net/phy/bcm-phy-ptp.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/phy/bcm-phy-ptp.c b/drivers/net/phy/bcm-phy-ptp.c
index 6815e844a62e..65d609ed69fb 100644
--- a/drivers/net/phy/bcm-phy-ptp.c
+++ b/drivers/net/phy/bcm-phy-ptp.c
@@ -780,6 +780,18 @@ static void bcm_ptp_txtstamp(struct mii_timestamper *mii_ts,
 	kfree_skb(skb);
 }
 
+static int bcm_ptp_hwtstamp_get(struct mii_timestamper *mii_ts,
+				struct kernel_hwtstamp_config *cfg)
+{
+	struct bcm_ptp_private *priv = mii2priv(mii_ts);
+
+	cfg->rx_filter = priv->hwts_rx ? HWTSTAMP_FILTER_PTP_V2_EVENT
+				       : HWTSTAMP_FILTER_NONE;
+	cfg->tx_type = priv->tx_type;
+
+	return 0;
+}
+
 static int bcm_ptp_hwtstamp_set(struct mii_timestamper *mii_ts,
 				struct kernel_hwtstamp_config *cfg,
 				struct netlink_ext_ack *extack)
@@ -899,6 +911,7 @@ static void bcm_ptp_init(struct bcm_ptp_private *priv)
 	priv->mii_ts.rxtstamp = bcm_ptp_rxtstamp;
 	priv->mii_ts.txtstamp = bcm_ptp_txtstamp;
 	priv->mii_ts.hwtstamp_set = bcm_ptp_hwtstamp_set;
+	priv->mii_ts.hwtstamp_get = bcm_ptp_hwtstamp_get;
 	priv->mii_ts.ts_info = bcm_ptp_ts_info;
 
 	priv->phydev->mii_ts = &priv->mii_ts;
-- 
2.47.3