linux-kernel - [PATCH] iommu/ipmmu-vmsa: use devm_platform_get_and_ioremap

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Date:   Wed, 8 Feb 2023 16:05:55 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <joro@...tes.org>
Cc:     <will@...nel.org>, <robin.murphy@....com>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] iommu/ipmmu-vmsa: use devm_platform_get_and_ioremap_resource()

From: Ye Xingchen <ye.xingchen@....com.cn>

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@....com.cn>
---
 drivers/iommu/ipmmu-vmsa.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index bdf1a4e5eae0..aca7ca8b5543 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -967,7 +967,6 @@ static const struct of_device_id ipmmu_of_ids[] = {
 static int ipmmu_probe(struct platform_device *pdev)
 {
 	struct ipmmu_vmsa_device *mmu;
-	struct resource *res;
 	int irq;
 	int ret;

@@ -987,8 +986,7 @@ static int ipmmu_probe(struct platform_device *pdev)
 		return ret;

 	/* Map I/O memory and request IRQ. */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mmu->base = devm_ioremap_resource(&pdev->dev, res);
+	mmu->base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
 	if (IS_ERR(mmu->base))
 		return PTR_ERR(mmu->base);

-- 
2.25.1