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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>, Heiner Kallweit <hkallweit1@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net-next v2 1/5] net: stmmac: socfpga: init dwmac->stmmac_rst before registration
Date: Wed, 16 Apr 2025 10:31:22 +0100	[thread overview]
Message-ID: <E1u4z74-000xBc-R0@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <Z_95AM64tt_4ri1j@shell.armlinux.org.uk>

Initialisation/setup after registration is a bug. This is the first of
two patches fixing this in socfpga.

dwmac->stmmac_rst is initialised from the stmmac plat_dat's stmmac_rst
member, which is itself initialised by devm_stmmac_probe_config_dt().
Therefore, this can be initialised before we call stmmac_dvr_probe().
Move it there.

dwmac->stmmac_rst is used by the set_phy_mode() method.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 116855658559..bcdb25ee2a33 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -442,8 +442,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
 	struct device		*dev = &pdev->dev;
 	int			ret;
 	struct socfpga_dwmac	*dwmac;
-	struct net_device	*ndev;
-	struct stmmac_priv	*stpriv;
 	const struct socfpga_dwmac_ops *ops;
 
 	ops = device_get_match_data(&pdev->dev);
@@ -479,7 +477,13 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/* The socfpga driver needs to control the stmmac reset to set the phy
+	 * mode. Create a copy of the core reset handle so it can be used by
+	 * the driver later.
+	 */
+	dwmac->stmmac_rst = plat_dat->stmmac_rst;
 	dwmac->ops = ops;
+
 	plat_dat->bsp_priv = dwmac;
 	plat_dat->fix_mac_speed = socfpga_dwmac_fix_mac_speed;
 	plat_dat->pcs_init = socfpga_dwmac_pcs_init;
@@ -493,15 +497,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	ndev = platform_get_drvdata(pdev);
-	stpriv = netdev_priv(ndev);
-
-	/* The socfpga driver needs to control the stmmac reset to set the phy
-	 * mode. Create a copy of the core reset handle so it can be used by
-	 * the driver later.
-	 */
-	dwmac->stmmac_rst = stpriv->plat->stmmac_rst;
-
 	ret = ops->set_phy_mode(dwmac);
 	if (ret)
 		goto err_dvr_remove;
-- 
2.30.2


  reply	other threads:[~2025-04-16  9:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-16  9:31 [PATCH net-next v2 0/5] net: stmmac: socfpga: fix init ordering and cleanups Russell King (Oracle)
2025-04-16  9:31 ` Russell King (Oracle) [this message]
2025-04-16  9:31 ` [PATCH net-next v2 2/5] net: stmmac: socfpga: provide init function Russell King (Oracle)
2025-04-16  9:31 ` [PATCH net-next v2 3/5] net: stmmac: socfpga: convert to stmmac_pltfr_pm_ops Russell King (Oracle)
2025-04-16  9:31 ` [PATCH net-next v2 4/5] net: stmmac: socfpga: call set_phy_mode() before registration Russell King (Oracle)
2025-04-16  9:31 ` [PATCH net-next v2 5/5] net: stmmac: socfpga: convert to devm_stmmac_pltfr_probe() Russell King (Oracle)
2025-04-16 11:19 ` [PATCH net-next v2 0/5] net: stmmac: socfpga: fix init ordering and cleanups Maxime Chevallier

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