netdev - [PATCH v4 1/4] net: axienet: setup mdio unconditionally

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Date:   Mon, 21 Mar 2022 23:25:12 +0800
From:   Andy Chiu <andy.chiu@...ive.com>
To:     radhey.shyam.pandey@...inx.com, robert.hancock@...ian.com,
        michal.simek@...inx.com
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        robh+dt@...nel.org, linux@...linux.org.uk, andrew@...n.ch,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        Andy Chiu <andy.chiu@...ive.com>,
        Greentime Hu <greentime.hu@...ive.com>
Subject: [PATCH v4 1/4] net: axienet: setup mdio unconditionally

The call to axienet_mdio_setup should not depend on whether "phy-node"
pressents on the DT. Besides, since `lp->phy_node` is used if PHY is in
SGMII or 100Base-X modes, move it into the if statement. And the next patch
will remove `lp->phy_node` from driver's private structure and do an
of_node_put on it right away after use since it is not used elsewhere.

Signed-off-by: Andy Chiu <andy.chiu@...ive.com>
Reviewed-by: Greentime Hu <greentime.hu@...ive.com>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 6fd5157f0a6d..5d41b8de840a 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -2064,15 +2064,14 @@ static int axienet_probe(struct platform_device *pdev)
 	if (ret)
 		goto cleanup_clk;
 
-	lp->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
-	if (lp->phy_node) {
-		ret = axienet_mdio_setup(lp);
-		if (ret)
-			dev_warn(&pdev->dev,
-				 "error registering MDIO bus: %d\n", ret);
-	}
+	ret = axienet_mdio_setup(lp);
+	if (ret)
+		dev_warn(&pdev->dev,
+			 "error registering MDIO bus: %d\n", ret);
+
 	if (lp->phy_mode == PHY_INTERFACE_MODE_SGMII ||
 	    lp->phy_mode == PHY_INTERFACE_MODE_1000BASEX) {
+		lp->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
 		if (!lp->phy_node) {
 			dev_err(&pdev->dev, "phy-handle required for 1000BaseX/SGMII\n");
 			ret = -EINVAL;
-- 
2.34.1