bnxt_en: Enable hardware PTP support

Call bnxt_ptp_init() to initialize and register with the clock driver
to enable PTP support.  Call bnxt_ptp_free() to unregister and clean
up during shutdown.
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -12660,6 +12660,8 @@ static void bnxt_remove_one(struct pci_dev *pdev)
 
 	if (BNXT_PF(bp))
 		devlink_port_type_clear(&bp->dl_port);
+
+	bnxt_ptp_clear(bp);
 	pci_disable_pcie_error_reporting(pdev);
 	unregister_netdev(dev);
 	clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
@@ -13243,6 +13245,11 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 				   rc);
 	}
 
+	if (bnxt_ptp_init(bp)) {
+		netdev_warn(dev, "PTP initialization failed.\n");
+		kfree(bp->ptp_cfg);
+		bp->ptp_cfg = NULL;
+	}
 	bnxt_inv_fw_health_reg(bp);
 	bnxt_dl_register(bp);