linux-kernel - [PATCH] dmaengine: uniphier-mdmac: use devm_platform_ioremap

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Message-Id: <20190905034133.29514-1-yamada.masahiro@socionext.com>
Date:   Thu,  5 Sep 2019 12:41:33 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Vinod Koul <vkoul@...nel.org>, dmaengine@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Dan Williams <dan.j.williams@...el.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] dmaengine: uniphier-mdmac: use devm_platform_ioremap_resource()

Replace the chain of platform_get_resource() and devm_ioremap_resource()
with devm_platform_ioremap_resource().

This allows to remove the local variable for (struct resource *), and
have one function call less.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 drivers/dma/uniphier-mdmac.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/uniphier-mdmac.c b/drivers/dma/uniphier-mdmac.c
index ec65a7430dc4..e42f2312b7a1 100644
--- a/drivers/dma/uniphier-mdmac.c
+++ b/drivers/dma/uniphier-mdmac.c
@@ -385,7 +385,6 @@ static int uniphier_mdmac_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct uniphier_mdmac_device *mdev;
 	struct dma_device *ddev;
-	struct resource *res;
 	int nr_chans, ret, i;
 
 	nr_chans = platform_irq_count(pdev);
@@ -401,8 +400,7 @@ static int uniphier_mdmac_probe(struct platform_device *pdev)
 	if (!mdev)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mdev->reg_base = devm_ioremap_resource(dev, res);
+	mdev->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mdev->reg_base))
 		return PTR_ERR(mdev->reg_base);
 
-- 
2.17.1