netdev - [net-next, v2, 6/7] enetc: store ptp device pointer

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Message-Id: <20210521043619.44694-7-yangbo.lu@nxp.com>
Date:   Fri, 21 May 2021 12:36:18 +0800
From:   Yangbo Lu <yangbo.lu@....com>
To:     netdev@...r.kernel.org
Cc:     Yangbo Lu <yangbo.lu@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Richard Cochran <richardcochran@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [net-next, v2, 6/7] enetc: store ptp device pointer

Store ptp device pointer which will be used for ptp domain
timestamp conversion.

Signed-off-by: Yangbo Lu <yangbo.lu@....com>
---
Changes for v2:
	- Made sure ptp device was got.
	- Update copyright.
---
 drivers/net/ethernet/freescale/enetc/enetc.h    |  3 ++-
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 14 +++++++++++++-
 drivers/net/ethernet/freescale/enetc/enetc_vf.c | 14 +++++++++++++-
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index 08b283347d9c..925f2a96e375 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2017-2019 NXP */
+/* Copyright 2017-2021 NXP */
 
 #include <linux/timer.h>
 #include <linux/pci.h>
@@ -351,6 +351,7 @@ struct enetc_ndev_priv {
 
 	struct work_struct	tx_onestep_tstamp;
 	struct sk_buff_head	tx_skbs;
+	struct device *ptp_dev;
 };
 
 /* Messaging */
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 31274325159a..994a4d3b715e 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2017-2019 NXP */
+/* Copyright 2017-2021 NXP */
 
 #include <linux/mdio.h>
 #include <linux/module.h>
@@ -1201,6 +1201,7 @@ static int enetc_pf_probe(struct pci_dev *pdev,
 {
 	struct device_node *node = pdev->dev.of_node;
 	struct enetc_ndev_priv *priv;
+	struct pci_dev *ptp_pdev;
 	struct net_device *ndev;
 	struct enetc_si *si;
 	struct enetc_pf *pf;
@@ -1293,6 +1294,16 @@ static int enetc_pf_probe(struct pci_dev *pdev,
 		goto err_alloc_msix;
 	}
 
+	ptp_pdev = pci_get_device(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PTP,
+				  NULL);
+	if (!ptp_pdev) {
+		dev_err(&pdev->dev, "no PTP device found\n");
+		err = -ENODEV;
+		goto err_get_ptp;
+	}
+
+	priv->ptp_dev = &ptp_pdev->dev;
+
 	if (!of_get_phy_mode(node, &pf->if_mode)) {
 		err = enetc_mdiobus_create(pf, node);
 		if (err)
@@ -1310,6 +1321,7 @@ static int enetc_pf_probe(struct pci_dev *pdev,
 	return 0;
 
 err_reg_netdev:
+err_get_ptp:
 	enetc_phylink_destroy(priv);
 err_phylink_create:
 	enetc_mdiobus_destroy(pf);
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_vf.c b/drivers/net/ethernet/freescale/enetc/enetc_vf.c
index 03090ba7e226..ca1deb7d4dcb 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_vf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_vf.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2017-2019 NXP */
+/* Copyright 2017-2021 NXP */
 
 #include <linux/module.h>
 #include "enetc.h"
@@ -138,6 +138,7 @@ static int enetc_vf_probe(struct pci_dev *pdev,
 			  const struct pci_device_id *ent)
 {
 	struct enetc_ndev_priv *priv;
+	struct pci_dev *ptp_pdev;
 	struct net_device *ndev;
 	struct enetc_si *si;
 	int err;
@@ -188,6 +189,16 @@ static int enetc_vf_probe(struct pci_dev *pdev,
 		goto err_alloc_msix;
 	}
 
+	ptp_pdev = pci_get_device(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PTP,
+				  NULL);
+	if (!ptp_pdev) {
+		dev_err(&pdev->dev, "no PTP device found\n");
+		err = -ENODEV;
+		goto err_get_ptp;
+	}
+
+	priv->ptp_dev = &ptp_pdev->dev;
+
 	err = register_netdev(ndev);
 	if (err)
 		goto err_reg_netdev;
@@ -197,6 +208,7 @@ static int enetc_vf_probe(struct pci_dev *pdev,
 	return 0;
 
 err_reg_netdev:
+err_get_ptp:
 	enetc_free_msix(priv);
 err_config_si:
 err_alloc_msix:
-- 
2.25.1