linux-kernel - [PATCH net-next] can: rcar: use devm_platform_ioremap

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Date:   Tue, 15 Oct 2019 22:30:47 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <wg@...ndegger.com>, <mkl@...gutronix.de>, <davem@...emloft.net>,
        <wsa+renesas@...g-engineering.com>, <horms+renesas@...ge.net.au>,
        <swboyd@...omium.org>, <fabrizio.castro@...renesas.com>,
        <geert+renesas@...der.be>, <yuehaibing@...wei.com>,
        <nikita.yoush@...entembedded.com>
CC:     <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next] can: rcar: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/can/rcar/rcar_can.c   | 4 +---
 drivers/net/can/rcar/rcar_canfd.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index bf5adea..4857590 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -744,7 +744,6 @@ static int rcar_can_probe(struct platform_device *pdev)
 {
 	struct rcar_can_priv *priv;
 	struct net_device *ndev;
-	struct resource *mem;
 	void __iomem *addr;
 	u32 clock_select = CLKR_CLKP1;
 	int err = -ENODEV;
@@ -759,8 +758,7 @@ static int rcar_can_probe(struct platform_device *pdev)
 		goto fail;
 	}
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	addr = devm_ioremap_resource(&pdev->dev, mem);
+	addr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(addr)) {
 		err = PTR_ERR(addr);
 		goto fail;
diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index edaa1ca..de59dd6 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1630,7 +1630,6 @@ static void rcar_canfd_channel_remove(struct rcar_canfd_global *gpriv, u32 ch)
 
 static int rcar_canfd_probe(struct platform_device *pdev)
 {
-	struct resource *mem;
 	void __iomem *addr;
 	u32 sts, ch, fcan_freq;
 	struct rcar_canfd_global *gpriv;
@@ -1704,8 +1703,7 @@ static int rcar_canfd_probe(struct platform_device *pdev)
 		/* CANFD clock is further divided by (1/2) within the IP */
 		fcan_freq /= 2;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	addr = devm_ioremap_resource(&pdev->dev, mem);
+	addr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(addr)) {
 		err = PTR_ERR(addr);
 		goto fail_dev;
-- 
2.7.4