netdev - [PATCH net-next 10/48] can: rcar_can: Add helper variable dev to rcar_can

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Message-ID: <20250925121332.848157-11-mkl@pengutronix.de>
Date: Thu, 25 Sep 2025 14:07:47 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Biju Das <biju.das.jz@...renesas.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 10/48] can: rcar_can: Add helper variable dev to rcar_can_probe()

From: Geert Uytterhoeven <geert+renesas@...der.be>

rcar_can_probe() has many users of "pdev->dev".  Introduce a shorthand
to simplify the code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
Link: https://patch.msgid.link/baf34c8bef5625ae73c830dbb3c617eb8f7adddd.1755857536.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/rcar/rcar_can.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index 5b0b495d127c..57030992141c 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -738,6 +738,7 @@ static const char * const clock_names[] = {
 
 static int rcar_can_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct rcar_can_priv *priv;
 	struct net_device *ndev;
 	void __iomem *addr;
@@ -745,7 +746,7 @@ static int rcar_can_probe(struct platform_device *pdev)
 	int err = -ENODEV;
 	int irq;
 
-	of_property_read_u32(pdev->dev.of_node, "renesas,can-clock-select",
+	of_property_read_u32(dev->of_node, "renesas,can-clock-select",
 			     &clock_select);
 
 	irq = platform_get_irq(pdev, 0);
@@ -762,30 +763,29 @@ static int rcar_can_probe(struct platform_device *pdev)
 
 	ndev = alloc_candev(sizeof(struct rcar_can_priv), RCAR_CAN_FIFO_DEPTH);
 	if (!ndev) {
-		dev_err(&pdev->dev, "alloc_candev() failed\n");
+		dev_err(dev, "alloc_candev() failed\n");
 		err = -ENOMEM;
 		goto fail;
 	}
 
 	priv = netdev_priv(ndev);
 
-	priv->clk = devm_clk_get(&pdev->dev, "clkp1");
+	priv->clk = devm_clk_get(dev, "clkp1");
 	if (IS_ERR(priv->clk)) {
 		err = PTR_ERR(priv->clk);
-		dev_err(&pdev->dev, "cannot get peripheral clock, error %d\n",
-			err);
+		dev_err(dev, "cannot get peripheral clock, error %d\n", err);
 		goto fail_clk;
 	}
 
 	if (!(BIT(clock_select) & RCAR_SUPPORTED_CLOCKS)) {
 		err = -EINVAL;
-		dev_err(&pdev->dev, "invalid CAN clock selected\n");
+		dev_err(dev, "invalid CAN clock selected\n");
 		goto fail_clk;
 	}
-	priv->can_clk = devm_clk_get(&pdev->dev, clock_names[clock_select]);
+	priv->can_clk = devm_clk_get(dev, clock_names[clock_select]);
 	if (IS_ERR(priv->can_clk)) {
 		err = PTR_ERR(priv->can_clk);
-		dev_err(&pdev->dev, "cannot get CAN clock, error %d\n", err);
+		dev_err(dev, "cannot get CAN clock, error %d\n", err);
 		goto fail_clk;
 	}
 
@@ -802,18 +802,17 @@ static int rcar_can_probe(struct platform_device *pdev)
 	priv->can.do_get_berr_counter = rcar_can_get_berr_counter;
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING;
 	platform_set_drvdata(pdev, ndev);
-	SET_NETDEV_DEV(ndev, &pdev->dev);
+	SET_NETDEV_DEV(ndev, dev);
 
 	netif_napi_add_weight(ndev, &priv->napi, rcar_can_rx_poll,
 			      RCAR_CAN_NAPI_WEIGHT);
 	err = register_candev(ndev);
 	if (err) {
-		dev_err(&pdev->dev, "register_candev() failed, error %d\n",
-			err);
+		dev_err(dev, "register_candev() failed, error %d\n", err);
 		goto fail_candev;
 	}
 
-	dev_info(&pdev->dev, "device registered (IRQ%d)\n", ndev->irq);
+	dev_info(dev, "device registered (IRQ%d)\n", ndev->irq);
 
 	return 0;
 fail_candev:
-- 
2.51.0