diff --git a/drivers/staging/mt7621-dma/mtk-hsdma.c b/drivers/staging/mt7621-dma/mtk-hsdma.c
index d964642d95a3..03c8937f80b0 100644
--- a/drivers/staging/mt7621-dma/mtk-hsdma.c
+++ b/drivers/staging/mt7621-dma/mtk-hsdma.c
@@ -650,7 +650,6 @@ static int mtk_hsdma_probe(struct platform_device *pdev)
 	struct mtk_hsdma_chan *chan;
 	struct mtk_hsdam_engine *hsdma;
 	struct dma_device *dd;
-	struct resource *res;
 	int ret;
 	int irq;
 	void __iomem *base;
@@ -667,8 +666,7 @@ static int mtk_hsdma_probe(struct platform_device *pdev)
 	if (!hsdma)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 	hsdma->base = base + HSDMA_BASE_OFFSET;