linux-kernel - [PATCH -next] iommu/rockchip: Use devm_platform_ioremap

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Message-ID: <20200918083415.33024-1-bobo.shaobowang@huawei.com>
Date:   Fri, 18 Sep 2020 16:34:15 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <cj.chengjian@...wei.com>, <huawei.libin@...wei.com>,
        <jroedel@...e.de>, <linux-rockchip@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH -next] iommu/rockchip: Use devm_platform_ioremap_resource()

Make use of devm_platform_ioremap_resource() provided by driver
core platform instead of duplicated analogue.

Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 drivers/iommu/rockchip-iommu.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index e5d86b7177de..cc4b654be2cc 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1126,7 +1126,6 @@ static int rk_iommu_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct rk_iommu *iommu;
-	struct resource *res;
 	int num_res = pdev->num_resources;
 	int err, i;
 
@@ -1144,10 +1143,7 @@ static int rk_iommu_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	for (i = 0; i < num_res; i++) {
-		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
-		if (!res)
-			continue;
-		iommu->bases[i] = devm_ioremap_resource(&pdev->dev, res);
+		iommu->bases[i] = devm_platform_ioremap_resource(pdev, i);
 		if (IS_ERR(iommu->bases[i]))
 			continue;
 		iommu->num_mmu++;
-- 
2.17.1